CN112542292A - Vertical combined type non-coupled inductor and manufacturing method thereof - Google Patents
Vertical combined type non-coupled inductor and manufacturing method thereof Download PDFInfo
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- CN112542292A CN112542292A CN202011415578.5A CN202011415578A CN112542292A CN 112542292 A CN112542292 A CN 112542292A CN 202011415578 A CN202011415578 A CN 202011415578A CN 112542292 A CN112542292 A CN 112542292A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
Abstract
The invention discloses a vertical combined type non-coupling inductor and a manufacturing method thereof.A inductor device comprises at least two independent power inductor units, wherein the independent power inductor units are arranged in parallel, and pins of inductor conductors in a plurality of units are all attached to the same end surface; the power inductor also comprises a metal cover shell, wherein the metal cover shell is arranged on the periphery of the main body part and is in contact with the periphery side of each independent power inductor unit respectively. The inductor reduces the whole volume and occupied space of a finished product by arranging and combining the plurality of units, solves the heat dissipation problem by utilizing the heat conductivity of the metal material, reduces the alternating current loss and energy consumption of the processed finished product, and ensures the working efficiency of the finished product. The method has clear and concise process flow logic and strong operability.
Description
Technical Field
The invention relates to a combined inductor device, in particular to an upright combined type non-coupled inductor and a corresponding manufacturing method thereof, and belongs to the technical field of inductor processing.
Background
The inductor is one of the most common components in electronic devices and one of the important components in circuits, and is widely used in various circuits to achieve the functions of filtering, storing energy, matching and resonating.
With the continuous development of computer communication, artificial intelligence and other technologies in recent years, the update iteration of various hardware devices is increasingly frequent, and some large-scale devices in traditional cognition, such as servers and cloud servers, also begin to develop towards the trend of integration and miniaturization. In consideration of the stability of such devices during operation, in the design stage, the requirements on the external dimensions, the internal structure and the like are strict, and not only is the internal space of the hardware device fully utilized, but also the efficient operation of each internal element of the hardware device under the use state is ensured.
For example, a great number of vertical inductor devices are used in the cloud server at present, most of the inductors are applied in a point form and are independently arranged in the prior art, so that the occupancy rate of the internal space of the hardware equipment is high, the overall layout of the internal circuit of the hardware equipment is restricted, and the simplified design of the circuit is influenced.
Second, another major problem that currently plagues those skilled in the art is the dissipation of heat from the inductor inside the device. Because the arrangement of each element inside the equipment is very tight, for special devices such as an inductance device, the phenomena that the inductance generates heat due to use, the heat is accumulated inside the equipment and cannot be discharged in time easily occur, once so, not only the alternating current loss of the inductance device is increased, the energy consumption is increased, and the working efficiency of the inductance device is influenced, but also the electromagnetic Interference (EMI) of other parts of the inductance device is increased, and the normal use of other elements inside the equipment is influenced.
In summary, based on various prior arts, a novel and upright combined type non-coupled inductor and a corresponding manufacturing method thereof are proposed to solve the above technical problems, so as to not only realize the integrated processing of the structure of the inductor device, but also improve the heat dissipation performance, ensure the working efficiency, and enable the inductor device to be suitable for various application scenarios, which is a problem to be urgently solved by technical staff in the field.
Disclosure of Invention
In view of the foregoing defects in the prior art, an object of the present invention is to provide a vertical combined type non-coupled inductor suitable for high-precision application scenarios such as servers and cloud server components, and a corresponding manufacturing method thereof, as follows.
A vertical combined non-coupling inductor is formed by combining a main body part and a shell part; the main body part comprises at least two independent power inductance units, the independent power inductance units are arranged in parallel, and pins of inductance conductors in the independent power inductance units are all arranged in the same end face in an attached mode; the shell part is a metal housing, and the metal housing covers the periphery of the main body part and is in contact with the peripheral side of each independent power inductance unit.
Preferably, in the main body part, the structures of the independent power inductance units are the same; each independent power inductance unit comprises an inductance magnet and an inductance conductor buried in the inductance magnet, wherein pins are arranged at two ends of the inductance conductor, extend out of the outer side of the inductance magnet respectively, and are bent and attached to the lower end face of the inductance magnet.
Preferably, the whole of the inductance magnet is of a cubic structure, a step surface for accommodating the inductance conductor pin is arranged on the outer periphery of the lower end of the inductance magnet, and a smoothly-transiting chamfer arc surface is arranged at the turning position of the upper end edge of the inductance magnet; and in the combined state of the inductance magnet and the inductance conductor, the pins of the inductance conductor are bent and attached to the step surface, and the lower end surfaces of the pins of the inductance conductor are coplanar with the lower end surface of the inductance magnet.
Preferably, the inductance conductor is formed by wire plasticity, the middle section part of the wire is wound to form an inductance utility section, two end parts of the wire are used as pins of the inductance conductor, and each pin of the inductance conductor is bent by two sections and respectively attached to the lower end position of the side surface and the two side positions of the lower end surface of the inductance magnet.
Preferably, the lead is a round wire or a flat wire; when the lead is a round wire, the equivalent inductance number of turns of an inductance utility section on the lead is more than 1, and two ends of the round wire are flattened, tinned and bent to form pins of the inductance conductor; when the lead is a flat wire, the equivalent inductance number of turns of the inductance utility section on the lead is not less than 3/4, and two ends of the flat wire are directly bent to form pins of the inductance conductor.
Preferably, a plurality of the independent power inductance units are bonded and fixed to form the main body part together, and inductance conductors in the plurality of the independent power inductance units are arranged in parallel; in a state where the body portion is formed, a coupling coefficient between the plurality of independent power inductance units is not more than 0.1.
Preferably, the metal housing is a metal cavity structure with an opening on one side, the shape and specification of the inner cavity of the metal housing are matched and corresponding to those of the upper end part of the main body part one by one, the metal housing is fixedly bonded with the upper end part of the main body part, and the metal housing is respectively contacted with the upper end surface of each independent power inductance unit in the main body part.
A method for manufacturing a vertical combined type non-coupled inductor, which is used for processing the vertical combined type non-coupled inductor, and comprises the following steps:
s1, processing the inductance conductor,
selecting a material for processing a lead, and finishing the molding processing of the inductance conductor aiming at the selected material;
when the selected material is a round wire rod, the round wire rod is wound to enable the middle section of the round wire rod to form an inductance utility section, two ends of the round wire rod are flattened to manufacture a conducting strip, and then the conducting strip is subjected to surface tinning and corner cutting to enable two ends of the conducting strip to form pins of the inductance conductor;
when the selected material is a flat wire, performing multi-section bending treatment on the flat wire to enable the middle section to form an inductance utility section and enable two ends to form pins of the inductance conductor;
s2, forming and processing the main body part,
preparing coating powder, arranging a processing die consistent with the shape of a product, placing the inductance conductor in the processing die, injecting the preheated coating powder for pressing, embedding an inductance utility section on the inductance conductor in the coating powder, exposing pins of the inductance conductor at two sides of the coating powder, then performing cold press molding treatment to combine the inductance conductor with the coating powder, demolding, and performing hot processing treatment to obtain an inductance unit processing intermediate piece;
bending the pins of the inductance conductor to ensure that the head end of the pins of the inductance conductor is attached to the lower end face of the inductance unit processing middleware to form a complete independent power inductance unit;
closely arranging at least two independent power inductance units in parallel and coating an adhesive on a contact surface to enable the independent power inductance units to be bonded and fixed to form a complete main body part;
s3, molding the shell part and processing the inductor finished product,
selecting a metal material, manufacturing a metal housing, coating an adhesive on the side wall of an inner cavity of the metal housing, and then covering the metal housing at the upper end position of the outer periphery of the main body part, so that the metal housing is fixedly adhered to the main body part, each independent power inductance unit is ensured to be in contact with the metal housing, and a complete vertical combined type non-coupled inductor is obtained.
Preferably, the coating powder is formed by mixing metal powder, insulating powder, adhesive, lubricant and curing agent; the material selection range of the metal powder comprises FeSiCr, FeSiAl, FeSiBCr and Fe base; the material selection range of the insulating powder comprises epoxy resin and silicone resin.
Preferably, in S2: the coating powder for pressing needs to be 6-8 Tons/cm in the cold press molding process 2Maintaining the pressure for 3-6 s; and in the thermal processing treatment process after the forming, drying is carried out for 5-8 h under the temperature condition of 80-180 ℃.
Compared with the prior art, the invention has the advantages that:
according to the upright combined type non-coupling inductor, the at least two independent power inductor units are arranged and combined to form a whole, so that the whole volume and the occupied space of a finished inductor device are reduced, and the arrangement flexibility of the upright combined type non-coupling inductor in various circuit structures and electric appliance parts is ensured. And because each independent power inductance unit is not coupled, an operator can select independent use or matched use of each independent power inductance unit according to an actual application scene in the use process, thereby further widening the application scene of the invention.
Meanwhile, according to the upright combined type non-coupling inductor, the heat dissipation problem of the finished inductor device is solved by arranging the metal housing on the top surface of each independent power inductor unit and utilizing the characteristic of high heat conduction speed of the metal device, the alternating current loss and the energy consumption of the finished inductor device are reduced, the working efficiency of the finished inductor device is ensured, and the influence on other elements in a use scene is avoided as much as possible.
Corresponding to the inductor device, the manufacturing method of the vertical combined type non-coupled inductor has clear and concise process flow logic, so that the finally processed finished inductor device has a good use effect, the development level of the related technology is fully considered, and the process difficulty of product manufacturing is considered.
In addition, the invention also provides reference basis for other related schemes in the same field, so that the extension can be carried out, and the structure and the method are applied to the technical schemes of other inductance devices, thereby having very wide application prospect.
The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings for the purpose of facilitating understanding and understanding of the technical solutions of the present invention.
Drawings
FIG. 1 is a schematic view of the complete structure of the present invention in the assembled state;
FIG. 2 is a schematic view of the assembly of the various parts of the present invention;
FIG. 3 is a schematic diagram of an independent power inductor unit according to the present invention;
fig. 4 is a schematic structural diagram of an inductor conductor when the material of the inductor conductor is a flat wire according to the present invention.
Wherein: 1. an independent power inductance unit; 11. an inductance magnet; 12. an inductance conductor; 2. a metal housing.
Detailed Description
The invention provides a vertical combined type non-coupling inductor suitable for high-precision application scenes such as a server and a cloud server part and a corresponding manufacturing method thereof, and particularly provides the following steps.
As shown in fig. 1 to 3, an upright combined non-coupled inductor is formed by combining a main body portion and a housing portion; the main body part comprises at least two independent power inductance units 1, the independent power inductance units 1 are arranged in parallel, and pins of inductance conductors 12 in the independent power inductance units 1 are all arranged in the same end face in an attaching mode; the shell part is a metal housing 2, and the metal housing 2 is covered on the periphery of the main body part and is respectively contacted with the periphery of each independent power inductance unit 1.
In the main body part, the structures among the independent power inductance units 1 are the same; each independent power inductance unit 1 comprises an inductance magnet 11 and an inductance conductor 12 buried in the inductance magnet 11, wherein two ends of the inductance conductor 12 are pins, extend out of the inductance magnet 11 respectively, and are bent and attached to the lower end face of the inductance magnet 11.
In the scheme of the present invention, the whole inductive magnet 11 is in a cubic structure, a step surface for accommodating the lead of the inductive conductor 12 is formed on the outer periphery of the lower end of the inductive magnet 11, and a smoothly transiting chamfer arc surface is formed at the turning point of the upper end edge of the inductive magnet 11; in the combined state of the inductor magnet 11 and the inductor conductor 12, the pins of the inductor conductor 12 are bent and attached to the step surface, and the lower end surfaces of the pins of the inductor conductor 12 are coplanar with the lower end surface of the inductor magnet 11.
The inductance conductor 12 is formed by wire plasticity, the middle section part coiling of wire forms by the effective section of an inductance, the both ends part of wire is as inductance conductor 12's pin, every pin of inductance conductor 12 all through two sections buckles, laminate in respectively inductance magnet 11's side lower extreme position and lower terminal surface both sides position.
Further, the conducting wire can be a round wire or a flat wire, and the specific arrangement of the conducting wire is slightly changed according to different choices.
When the lead is a round wire, the equivalent inductance number of turns of the inductance utility section on the lead is more than 1, and two ends of the round wire are flattened, tinned and bent to form pins of the inductance conductor 12;
when the lead is a flat wire, that is, as shown in fig. 4, the equivalent number of turns of the inductance effective section on the lead is not less than 3/4, and two ends of the flat wire are directly bent to form the pins of the inductance conductor 12.
The plurality of independent power inductance units 1 are bonded and fixed to form the main body part together, and the inductance conductors 12 in the plurality of independent power inductance units 1 are arranged in parallel. In order to ensure the non-coupling property of the final product of the present invention, it is emphasized that the coupling coefficient between the plurality of individual power inductor units 1 is not more than 0.1 in a state where the body portion is formed.
The metal housing 2 is a metal cavity structure with an opening on one side, the shape and the specification of an inner cavity of the metal housing 2 are matched and corresponding to those of the upper end part of the main body part one by one, the metal housing 2 and the upper end part of the main body part are fixedly bonded, and the metal housing 2 is respectively in contact with the upper end face of each independent power inductance unit 1 in the main body part.
According to the upright combined type non-coupling inductor, the at least two independent power inductor units are arranged and combined to form a whole, so that the whole volume and the occupied space of a finished inductor device are reduced, and the arrangement flexibility of the upright combined type non-coupling inductor in various circuit structures and electric appliance parts is ensured. And because each independent power inductance unit is not coupled, an operator can select independent use or matched use of each independent power inductance unit according to an actual application scene in the use process, thereby further widening the application scene of the invention.
Meanwhile, according to the upright combined type non-coupling inductor, the heat dissipation problem of the finished inductor device is solved by arranging the metal housing on the top surface of each independent power inductor unit and utilizing the characteristic of high heat conduction speed of the metal device, the alternating current loss and the energy consumption of the finished inductor device are reduced, the working efficiency of the finished inductor device is ensured, and the influence on other elements in a use scene is avoided as much as possible.
A manufacturing method of a vertical combined type non-coupled inductor is used for processing the vertical combined type non-coupled inductor, and the specific scheme is as follows.
S1, processing the inductor conductor, comprising the following steps:
the material used for processing the conductor is selected, and the forming process of the inductance conductor 12 is completed for the selected material.
When the selected material is a round wire rod, the round wire rod is wound to enable the middle section of the round wire rod to form an inductance effective section, two ends of the round wire rod are flattened to manufacture a conducting strip, and then surface tinning and corner cutting are carried out on the conducting strip to enable two ends of the conducting strip to form pins of the inductance conductor 12; here, it should be noted that, if the selected round wire rod is a round enameled wire, the coating layer on the outer periphery of the round enameled wire needs to be stripped before the winding process.
When the selected material is a flat wire, the flat wire is subjected to multi-section bending treatment, so that the middle section of the flat wire forms an inductance effective section, and the two ends of the flat wire form pins of the inductance conductor 12.
S2, forming and processing the main body part, comprising the following steps:
s21, preparing coating powder, wherein the coating powder is formed by mixing metal powder, insulating powder, an adhesive, a lubricant and a curing agent; the material selection range of the metal powder comprises FeSiCr, FeSiAl, FeSiBCr and Fe base; the material selection range of the insulating powder comprises epoxy resin and silicone resin.
S22, arranging a processing die consistent with the shape of a product, placing the inductance conductor 12 in the processing die, injecting the preheated coating powder, embedding an inductance utility section on the inductance conductor 12 in the coating powder, exposing pins of the inductance conductor 12 on two sides of the coating powder, then performing cold press molding treatment to combine the inductance conductor 12 with the coating powder, demolding, and performing hot processing treatment to obtain an inductance unit processing intermediate piece;
in the step, the coating powder for pressing needs to be 6 to 8Tons/cm in the cold press molding process 2Maintaining the pressure for 3-6 s; and in the thermal processing treatment process after the forming, drying is carried out for 5-8 h under the temperature condition of 80-180 ℃.
And S23, bending the pins of the inductance conductor 12 to enable the head end of the pins of the inductance conductor 12 to be attached to the lower end face of the inductance unit processing intermediate piece to form a complete independent power inductance unit 1.
S24, closely arranging at least two independent power inductance units 1 in parallel, and coating an adhesive on the contact surface to bond and fix the plurality of independent power inductance units 1 to form a complete body part.
S3, shell part forming and inductor finished product processing, including the following steps:
and S31, selecting a metal material to manufacture the metal shell 2. In consideration of the heat dissipation performance of the metal mainly utilized in the present scheme, all metal materials meeting the basic material selection requirements and having the heat dissipation effect can be used for manufacturing the metal housing 2.
S32, coating an adhesive on the inner cavity sidewall of the metal casing 2, and then covering the metal casing 2 at the upper end position of the outer periphery of the main body part, so that the metal casing 2 is fixed to the main body part in an adhesive manner and each of the independent power inductance units is ensured to be in contact with the metal casing 2, thereby obtaining a complete vertical combined type uncoupled inductor.
After the complete vertical combined type non-coupled inductor is obtained, some necessary subsequent processing can be carried out, including: the automatic packaging machine is characterized in that the automatic packaging machine is used for cleaning processed finished products, the automatic packaging machine is used for printing characters and marking the processed finished products, the automatic packaging machine is used for measuring packages and screening out defective products of the processed finished products, and the automatic packaging machine is used for packaging the processed finished products and finally completing shipment.
Corresponding to the inductor device, the manufacturing method of the vertical combined type non-coupled inductor has clear and concise process flow logic, so that the finally processed finished inductor device has a good use effect, the development level of the related technology is fully considered, and the process difficulty of product manufacturing is considered.
In addition, the invention also provides reference basis for other related schemes in the same field, so that the extension can be carried out, and the structure and the method are applied to the technical schemes of other inductance devices, thereby having very wide application prospect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Finally, it should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should integrate the description, and the technical solutions in the embodiments can be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (10)
1. A vertical combined type non-coupled inductor is characterized in that: the device is formed by combining a main body part and a shell part; the main body part comprises at least two independent power inductance units (1), the independent power inductance units (1) are arranged in parallel, and pins of inductance conductors (12) in the independent power inductance units (1) are attached to and arranged in the same end face; the shell part is a metal housing (2), and the metal housing (2) is covered on the periphery of the main body part and is in contact with the periphery side of each independent power inductance unit (1) respectively.
2. The inductor of claim 1, wherein: in the main body part, the structures among the independent power inductance units (1) are the same; each independent power inductance unit (1) comprises an inductance magnet (11) and an inductance conductor (12) buried in the inductance magnet (11), wherein pins are arranged at two ends of the inductance conductor (12), extend out of the outer side of the inductance magnet (11) respectively, and are bent to be attached to the lower end face of the inductance magnet (11).
3. The inductor of claim 2, wherein: the inductance magnet (11) is integrally in a cubic structure, a step surface for accommodating the pins of the inductance conductor (12) is formed on the outer periphery of the lower end of the inductance magnet (11), and a smoothly-transiting chamfer arc surface is arranged at the turning position of the upper end edge of the inductance magnet (11); and in the combined state of the inductive magnet (11) and the inductive conductor (12), the pins of the inductive conductor (12) are bent and attached to the step surface, and the lower end surfaces of the pins of the inductive conductor (12) are coplanar with the lower end surface of the inductive magnet (11).
4. A vertical combined non-coupled inductor according to claim 3, wherein: the inductance conductor (12) is formed by wire plasticity, the middle section part coiling of wire forms by the effective section of an inductance, the both ends part conduct of wire inductance conductor (12)'s pin, every pin of inductance conductor (12) all through two sections buckles, laminate in respectively inductance magnet (11) the side lower extreme position and the lower terminal surface both sides position.
5. The inductor as claimed in claim 4, wherein: the lead is a round wire or a flat wire; when the lead is a round wire, the equivalent inductance number of turns of an inductance utility section on the lead is more than 1, and two ends of the round wire are flattened, tinned and bent to form pins of the inductance conductor (12); when the lead is a flat wire, the equivalent inductance number of turns of the inductance utility section on the lead is not less than 3/4, and two ends of the flat wire are directly bent to form pins of the inductance conductor (12).
6. The inductor as claimed in claim 4, wherein: the independent power inductance units (1) are bonded and fixed to form the main body part together, and inductance conductors (12) in the independent power inductance units (1) are arranged in parallel; in a state where the body portion is formed, a coupling coefficient between the plurality of independent power inductance units (1) is not more than 0.1.
7. The inductor as claimed in claim 6, wherein: the metal housing (2) is of a metal cavity structure with an opening on one side, the shape and the specification of an inner cavity of the metal housing (2) are matched and corresponding to those of the upper end part of the main body part one by one, the metal housing (2) and the upper end part of the main body part are fixedly bonded, and the metal housing (2) is in contact with the upper end face of each independent power inductance unit (1) in the main body part respectively.
8. A method for manufacturing a vertical combined type non-coupled inductor, which is used for processing the vertical combined type non-coupled inductor as claimed in any one of claims 1 to 7, comprising the following steps:
s1, processing the inductance conductor,
selecting a material for processing a lead, and finishing the molding processing of the inductance conductor (12) aiming at the selected material;
when the selected material is a round wire rod, the round wire rod is wound to enable the middle section to form an inductance effective section, two ends of the round wire rod are flattened to manufacture a conducting strip, and then the conducting strip is subjected to surface tinning and corner cutting to enable two ends of the conducting strip to form pins of the inductance conductor (12);
when the selected material is a flat wire, the flat wire is subjected to multi-section bending treatment, so that an inductance effective section is formed at the middle section of the flat wire, and pins of the inductance conductor (12) are formed at two ends of the flat wire;
s2, forming and processing the main body part,
preparing coating powder, arranging a processing die consistent with the shape of a product, placing the inductance conductor (12) in the processing die, injecting the preheated coating powder for pressing, embedding an inductance utility section on the inductance conductor (12) in the coating powder, exposing pins of the inductance conductor (12) at two sides of the coating powder, then performing cold press molding treatment to combine the inductance conductor (12) with the coating powder, and performing hot processing treatment after demolding to obtain an inductance unit processing intermediate piece;
bending the pins of the inductance conductor (12) to ensure that the head end of the pins of the inductance conductor (12) is attached to the lower end face of the inductance unit processing middleware to form a complete independent power inductance unit (1);
closely arranging at least two independent power inductance units (1) in parallel and coating an adhesive on a contact surface to ensure that the plurality of independent power inductance units (1) are bonded and fixed to form a complete main body part;
s3, molding the shell part and processing the inductor finished product,
selecting a metal material, manufacturing a metal housing (2), coating an adhesive on the side wall of an inner cavity of the metal housing (2), and then covering the metal housing (2) at the upper end position of the outer peripheral side of the main body part, so that the metal housing (2) is fixedly adhered to the main body part and each independent power inductance unit is ensured to be in contact with the metal housing (2), and a complete vertical combined type non-coupled inductor is obtained.
9. The method as claimed in claim 8, wherein the step of forming the vertical combined type non-coupled inductor comprises: the coating powder is formed by mixing metal powder, insulating powder, adhesive, lubricant and curing agent; the material selection range of the metal powder comprises FeSiCr, FeSiAl, FeSiBCr and Fe base; the material selection range of the insulating powder comprises epoxy resin and silicone resin.
10. The method as claimed in claim 8, wherein in step S2: the coating powder for pressing needs to be 6-8 Tons/cm in the cold press molding process 2Maintaining the pressure for 3-6 s; and in the thermal processing treatment process after the forming, drying is carried out for 5-8 h under the temperature condition of 80-180 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011415578.5A CN112542292A (en) | 2020-12-07 | 2020-12-07 | Vertical combined type non-coupled inductor and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011415578.5A CN112542292A (en) | 2020-12-07 | 2020-12-07 | Vertical combined type non-coupled inductor and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112542292A true CN112542292A (en) | 2021-03-23 |
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| CN202011415578.5A Pending CN112542292A (en) | 2020-12-07 | 2020-12-07 | Vertical combined type non-coupled inductor and manufacturing method thereof |
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