WO2023130643A1 - Passive element conductive inductor and manufacturing method therefor - Google Patents
Passive element conductive inductor and manufacturing method therefor Download PDFInfo
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- WO2023130643A1 WO2023130643A1 PCT/CN2022/093094 CN2022093094W WO2023130643A1 WO 2023130643 A1 WO2023130643 A1 WO 2023130643A1 CN 2022093094 W CN2022093094 W CN 2022093094W WO 2023130643 A1 WO2023130643 A1 WO 2023130643A1
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- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- 239000010410 layer Substances 0.000 claims abstract description 76
- 239000011241 protective layer Substances 0.000 claims abstract description 43
- 238000004804 winding Methods 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims description 34
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 21
- 229910052802 copper Inorganic materials 0.000 claims description 21
- 239000010949 copper Substances 0.000 claims description 21
- 229910052759 nickel Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000009713 electroplating Methods 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 5
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- 238000004512 die casting Methods 0.000 claims description 4
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
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- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
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- 230000003647 oxidation Effects 0.000 description 2
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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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
-
- 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
- H01F41/02—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 for manufacturing cores, coils, or magnets
- H01F41/04—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 for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
Definitions
- the present disclosure relates to the field of inductors, and more specifically, relates to a conductive inductor for passive components and a preparation method thereof.
- a method for manufacturing conductive inductors for passive components The main function is to stabilize the current in the circuit and reduce the noise of the filtered signal. The purpose is similar to storing and releasing the electric energy in the circuit to adjust the current.
- the passive component inductor is achieved by forming a magnetic field, similar to A form of capacitive energy storage.
- this product is widely used in the market and needs to be miniaturized, and how to solve the problems of electrical conductivity, energy consumption and heat generation of the product while achieving more and more miniaturization is a very important issue.
- it has become a common problem in the industry to optimize the process to reduce materials, reduce processes, and shorten the process.
- the present disclosure provides a passive element conductive inductor and a preparation method thereof.
- the present disclosure is intended to solve at least the problems of existing conductive inductors for passive components.
- a conductive inductor for a passive component may include: a base body, on which a winding part is arranged; a coil, the coil is wound on the winding part, and the two coils of the coil The terminal is exposed outside the base body; the first protective layer covers part of the coil and the outside of the base body; the electrode layer is electrically connected to the two sides of the coil Ends.
- the cross-sectional area of the winding part is greater than one-third of the cross-sectional area of the base body and less than three-quarters of the cross-sectional area of the base body.
- the passive element conductive inductor further includes a second protection layer, the second protection layer covers the outside of the first protection layer, and the second protection layer does not cover both ends of the coil .
- the electrode layer includes at least one metal layer.
- the electrode layer includes: a copper layer, the copper layer is connected to the end of the coil; a nickel layer, the nickel layer is connected to a side of the copper layer away from the end of the coil a tin layer, the tin layer is connected to the side of the nickel layer away from the copper layer.
- the base body and the first protective layer are made of powder die-casting; the powder is metal powder, or sodium powder, or a mixed powder of metal powder and sodium powder; the metal powder is iron powder or stainless steel powder.
- the same powder is used for the first protective layer and the base.
- the first protective layer is integrated with the substrate by heat pressing.
- the second protective layer is sprayed from glue.
- a method for preparing a conductive inductor for passive components includes: cold pressing powder into a matrix; winding a coil on the winding portion of the matrix; hot pressing the powder
- the first protective layer covering the outer side of the winding part and the base body is formed; the second protective layer is formed by spraying glue on the outer side of the first protective layer, which is cured by heating and baking; and the laser paint stripping treatment is carried out so that the The end of the coil is exposed; the surface electrode layer connected to the lead wire of the coil is fabricated.
- making the surface electrode layer of the lead wire connected to the coil may include: electroplating a copper layer on the end of the coil; electroplating a nickel layer on the end of the copper layer away from the coil One side; electroplating a tin layer on the side of the nickel layer away from the copper layer.
- a combination of substrate, coil, first protective layer, second protective layer and electrode layer is used, wherein the end of the coil and the electrode layer are directly connected without other media in between, thus providing a good electrical conductivity Inductors with high performance and low energy consumption and low heat generation;
- FIG. 1 is a schematic diagram of a first structure of a conductive inductor for passive components provided by an embodiment of the present disclosure.
- FIG. 2 is a second structural schematic diagram of a conductive inductor for passive components provided by an embodiment of the present disclosure.
- FIG. 3 is a third structural schematic diagram of a conductive inductor for passive components provided by an embodiment of the present disclosure.
- FIG. 4 is a fourth structural schematic diagram of a conductive inductor for passive components provided by an embodiment of the present disclosure.
- FIG. 5 is a schematic diagram of a fifth structure of a conductive inductor for passive components provided by an embodiment of the present disclosure.
- FIG. 6 is a schematic diagram of a conductive inductor for passive components and a manufacturing method thereof provided by an embodiment of the present disclosure.
- Fig. 7 is a structural cross-sectional view of a conductive inductor for passive components provided by an embodiment of the present disclosure.
- first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features.
- “plurality” means two or more, unless otherwise specifically defined.
- a conductive inductor for passive components may include: a substrate 1 on which a winding portion 11 is disposed; a coil 2 wound on the winding portion 11 , and the two ends of the coil 2 are exposed outside the base 1; the first protective layer 3, the first protective layer 3 covers part of the coil 2 and the outside of the base 1; the second protection Layer 4, the second protective layer 4 covers the outside of the first protective layer, and the second protective layer 4 does not cover both ends of the coil; electrode layer 5, the electrode layer 5 is electrically connected to The two ends of the coil 2 , where part of the surface of the end of the coil 2 is flush with the corresponding outer surface of the inductor.
- the magnetic inductance value will be different according to the number of turns of the coil 2 according to the product requirements, for example, the more the number of turns of the coil, the higher the magnetic inductance value.
- the cross-sectional area of the winding part 11 is greater than one-third of the cross-sectional area of the base body 1 and less than three-quarters of the cross-sectional area of the base body 1 .
- the electrode layer 5 includes at least one metal layer.
- the electrode layer 5 may include: a copper layer, the copper layer is connected to the end of the coil 2; a nickel layer, the nickel layer is connected to the copper layer far away from the coil 2 One side of the end; a tin layer, the tin layer is connected to the side of the nickel layer away from the copper layer.
- the end of the coil and the electrode layer are directly connected, and no other medium is needed between them, so the conductivity is enhanced, and the electromagnetic loss and heat generation are reduced at the same time.
- the base 1 can be made by powder die-casting; the powder can be metal powder or sodium powder or a mixed powder of metal powder and sodium powder; the metal powder can be iron powder or stainless steel powder; and the shape of the base can be It is T-shaped.
- the first protective layer 3 can be made of powder die-casting, the first protective layer and the base body use the same powder, and make the coil not easy to be damaged and oxidized; and the first protective layer 3 and the base body 1 are thermally pressed together, The coil 2 is wrapped inside, and the first protective layer 3 is made of the same powder as the base 1, which mainly plays an insulating role, so that no potential difference is generated inside the product, and the coil is in an electromagnetic isolation environment.
- the second protective layer 4 can be sprayed from glue material, and the second protective layer 4 has corrosion resistance, oxidation resistance, hydrochloric acid atomization resistance, high temperature resistance, and airtightness.
- the second protective layer covers the entire product and does not cover the ends of the coil 2 .
- a method for preparing a conductive inductor for a passive component may include: cold pressing the powder into a matrix; winding the coil on the winding part of the matrix; The body is hot-pressed to form the first protective layer covering the winding part and the outer side of the substrate; the second protective layer is formed by spraying glue on the outer side of the first protective layer, which is cured by heating and baking; the laser paint stripping treatment is carried out, so that the coil The end of the exposed; make the surface electrode layer connected to the lead wire of the coil.
- Making the surface electrode layer of the lead wire connected to the coil may include: electroplating a copper layer on the end of the coil; electroplating a nickel layer on the side of the copper layer away from the end of the coil; electroplating a tin layer on the far side of the nickel layer. side of the copper layer.
- a conductive inductor for passive components comprising: a base body, on which a winding part is arranged; a coil, the coil is wound on the winding part, and both ends of the coil are exposed outside the base body; the second A protective layer, the first protective layer covers a part of the coil and the outside of the substrate; an electrode layer, the electrode layer is electrically connected to both ends of the coil.
- the passive component conductive inductors of the present application and the method of making them are reproducible and can be used in a variety of applications.
- the passive element conductive inductor of the present application and its preparation method can be applied to the field of inductors and the like.
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- Engineering & Computer Science (AREA)
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- Coils Or Transformers For Communication (AREA)
Abstract
Description
相关申请的交叉引用Cross References to Related Applications
本公开要求于2022年01月05日提交中国国家知识产权局的申请号为202210009696.9、名称为“一种被动元件导电电感器及其制备方法”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。This disclosure claims the priority of the Chinese patent application with application number 202210009696.9 and titled "A conductive inductor for passive components and its preparation method" filed with the State Intellectual Property Office of China on January 05, 2022, the entire contents of which are incorporated by reference incorporated in this disclosure.
本公开涉及电感器领域，更具体的说是，涉及一种被动元件导电电感器及其制备方法。The present disclosure relates to the field of inductors, and more specifically, relates to a conductive inductor for passive components and a preparation method thereof.
一种被动元件导电电感器制造方法，主功能稳定电路中电流并起到降低过滤信号燥声目的类似是已存储释放电路中电能来调节电流作用，被动元件电感器是以磁场形成来达到，类似电容储能的形式。A method for manufacturing conductive inductors for passive components. The main function is to stabilize the current in the circuit and reduce the noise of the filtered signal. The purpose is similar to storing and releasing the electric energy in the circuit to adjust the current. The passive component inductor is achieved by forming a magnetic field, similar to A form of capacitive energy storage.
目前该产品在市场使用广泛且需求尺寸偏小型化，且在实现越来越小型化的同时如何解决产品的导电性能、耗能发热等问题是一个非常重要的课题。同时在制造成本日益增加背景下，做制程优化减少材料，减少工艺，缩短制程也成了行业的共同难题。At present, this product is widely used in the market and needs to be miniaturized, and how to solve the problems of electrical conductivity, energy consumption and heat generation of the product while achieving more and more miniaturization is a very important issue. At the same time, in the context of increasing manufacturing costs, it has become a common problem in the industry to optimize the process to reduce materials, reduce processes, and shorten the process.
发明内容Contents of the invention
本公开提供一种被动元件导电电感器及其制备方法。The present disclosure provides a passive element conductive inductor and a preparation method thereof.
本公开要解决的至少是现有的被动元件导电电感器存在的问题。The present disclosure is intended to solve at least the problems of existing conductive inductors for passive components.
与相关技术相比，本公开的技术方案及其有益效果至少如下：Compared with related technologies, the technical solutions and beneficial effects of the present disclosure are at least as follows:
一种被动元件导电电感器，所述被动元件导电电感器可以包括：基体，所述基体上设置有绕线部；线圈，所述线圈缠绕于所述绕线部上，且所述线圈的两端露出于所述基体的外部；第一保护层，所述第一保护层对部分的所述线圈和所述基体的外侧进行覆盖；电极层，所述电极层电连接于所述线圈的两端部。A conductive inductor for a passive component, the conductive inductor for a passive component may include: a base body, on which a winding part is arranged; a coil, the coil is wound on the winding part, and the two coils of the coil The terminal is exposed outside the base body; the first protective layer covers part of the coil and the outside of the base body; the electrode layer is electrically connected to the two sides of the coil Ends.
可选地，所述绕线部的截面面积大于所述基体的截面面积的三分之一，且小于所述基体的截面面积的四分之三。Optionally, the cross-sectional area of the winding part is greater than one-third of the cross-sectional area of the base body and less than three-quarters of the cross-sectional area of the base body.
可选地，所述被动元件导电电感器还包括第二保护层，所述第二保护层覆盖于所述第一保护层的外侧，且所述第二保护层不覆盖所述线圈的两端。Optionally, the passive element conductive inductor further includes a second protection layer, the second protection layer covers the outside of the first protection layer, and the second protection layer does not cover both ends of the coil .
可选地，所述电极层至少包含一金属层。Optionally, the electrode layer includes at least one metal layer.
可选地，所述电极层包括：铜层，所述铜层连接于所述线圈的端部；镍层，所述镍层连接于所述铜层的远离所述线圈的端部的一侧；锡层，所述锡层连接于所述镍层的远离所述铜层的一侧。Optionally, the electrode layer includes: a copper layer, the copper layer is connected to the end of the coil; a nickel layer, the nickel layer is connected to a side of the copper layer away from the end of the coil a tin layer, the tin layer is connected to the side of the nickel layer away from the copper layer.
可选地，所述基体和所述第一保护层由粉体压铸制成；所述粉体为金属粉、或钠粉、或金属粉与钠粉的混合粉；所述金属粉为铁粉或不锈钢粉。Optionally, the base body and the first protective layer are made of powder die-casting; the powder is metal powder, or sodium powder, or a mixed powder of metal powder and sodium powder; the metal powder is iron powder or stainless steel powder.
可选地，所述第一保护层与所述基体采用同一种粉体。Optionally, the same powder is used for the first protective layer and the base.
可选地，所述第一保护层与所述基体热压于一体。Optionally, the first protective layer is integrated with the substrate by heat pressing.
可选地，所述第二保护层由胶材喷制而成。Optionally, the second protective layer is sprayed from glue.
一种被动元件导电电感器的制备方法，所述被动元件导电电感器的制备方法包括：将粉体冷压制成基体；将线圈缠绕于所述基体的绕线部上；将粉体热压成型出覆盖于所述绕线部和所述基体的外侧的第一保护层；喷胶于第一保护层的外侧而形成第二保护层，经过加热烘烤固化；进行激光剥漆处理，使得所述线圈的端部露出；制作连接于所述线圈的引线的表面电极层。A method for preparing a conductive inductor for passive components, the method for preparing the conductive inductor for passive components includes: cold pressing powder into a matrix; winding a coil on the winding portion of the matrix; hot pressing the powder The first protective layer covering the outer side of the winding part and the base body is formed; the second protective layer is formed by spraying glue on the outer side of the first protective layer, which is cured by heating and baking; and the laser paint stripping treatment is carried out so that the The end of the coil is exposed; the surface electrode layer connected to the lead wire of the coil is fabricated.
可选地，制作连接于所述线圈的引线的表面电极层可以包括：将铜层电镀于所述线圈的端部上；将镍层电镀于所述铜层的远离所述线圈的端部的一侧；将锡层电镀于所述镍层的远离所述铜层的一侧。Optionally, making the surface electrode layer of the lead wire connected to the coil may include: electroplating a copper layer on the end of the coil; electroplating a nickel layer on the end of the copper layer away from the coil One side; electroplating a tin layer on the side of the nickel layer away from the copper layer.
本公开的有益效果至少为：The beneficial effects of the present disclosure are at least:
采用基体、线圈、第一保护层、第二保护层和电极层之间的组合，其中，线圈的端部和电极层直接导通，之间不需要其他介质，从而提供一种具有良好的导电性能和低耗能低发热的电感器；A combination of substrate, coil, first protective layer, second protective layer and electrode layer is used, wherein the end of the coil and the electrode layer are directly connected without other media in between, thus providing a good electrical conductivity Inductors with high performance and low energy consumption and low heat generation;
并通过直接电镀铜覆盖于线圈端部，加上其它金属镀层如镍、锡形成更耐磨损的、抗氧化的电极层。从而减少了工艺制程，降低了生产成本，缩短加工生产周期时间，并提高了产品的耐损性。And cover the end of the coil by direct electroplating copper, and add other metal coatings such as nickel and tin to form a more wear-resistant and oxidation-resistant electrode layer. Therefore, the process is reduced, the production cost is reduced, the processing and production cycle time is shortened, and the damage resistance of the product is improved.
图1是本公开的实施例提供的一种被动元件导电电感器的第一结构示意图。FIG. 1 is a schematic diagram of a first structure of a conductive inductor for passive components provided by an embodiment of the present disclosure.
图2是本公开的实施例提供的一种被动元件导电电感器的第二结构示意图。FIG. 2 is a second structural schematic diagram of a conductive inductor for passive components provided by an embodiment of the present disclosure.
图3是本公开的实施例提供的一种被动元件导电电感器的第三结构示意图。FIG. 3 is a third structural schematic diagram of a conductive inductor for passive components provided by an embodiment of the present disclosure.
图4是本公开的实施例提供的一种被动元件导电电感器的第四结构示意图。FIG. 4 is a fourth structural schematic diagram of a conductive inductor for passive components provided by an embodiment of the present disclosure.
图5是本公开的实施例提供的一种被动元件导电电感器的第五结构示意图。FIG. 5 is a schematic diagram of a fifth structure of a conductive inductor for passive components provided by an embodiment of the present disclosure.
图6是本公开的实施例提供的一种被动元件导电电感器及其制备方法示意图。FIG. 6 is a schematic diagram of a conductive inductor for passive components and a manufacturing method thereof provided by an embodiment of the present disclosure.
图7是本公开的实施例提供的一种被动元件导电电感器的结构剖视图。Fig. 7 is a structural cross-sectional view of a conductive inductor for passive components provided by an embodiment of the present disclosure.
图中：In the picture:
1.基体 11.绕线部 2.线圈1.
3.第一保护层 4.第二保护层 5.电极层3. The first
为使本公开的实施方式的目的、技术方案和优点更加清楚，下面将结合本公开的实施方式中的附图，对本公开的实施方式中的技术方案进行清楚、完整地描述，显然，所描述的实施方式是本公开的一部分实施方式，而不是全部的实施方式。基于本公开中的实施方式，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式，都属于本公开保护的范围。因此，以下对在附图中提供的本公开的实施方式的详细描述并非旨在限制要求保护的本公开的范围，而是仅仅表示本公开的选定实施方式。基于本公开中的实施方式，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施方式，都属于本公开保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described The embodiments are some of the embodiments of the present disclosure, but not all of the embodiments. Based on the implementation manners in the present disclosure, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure. Accordingly, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely represents selected embodiments of the present disclosure. Based on the implementation manners in the present disclosure, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.
在本公开的描述中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本公开的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。In the description of the present disclosure, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present disclosure, "plurality" means two or more, unless otherwise specifically defined.
参照图1至图7所示，一种被动元件导电电感器，可以包括：基体1，所述基体1上设置有绕线部11；线圈2，所述线圈2缠绕于所述绕线部11上，且所述线圈2的两端露出于所述基体1外部；第一保护层3，所述第一保护层3覆盖于部分的所述线圈2和所述基体1的外侧；第二保护层4，所述第二保护层4覆盖于所述第一保护层的外侧，且所述第二保护层4不覆盖所述线圈的两端；电极层5，所述电极层5电连接于所述线圈2的两端部，其中，所述线圈2的端部的部分表面与电感器的相对应的外表面齐平。Referring to FIGS. 1 to 7 , a conductive inductor for passive components may include: a
其中，需要说明的是，根据产品需求线圈2的圈数不同磁性感值也会不同，例如，线圈的圈数越多磁性感值越高。Wherein, it should be noted that the magnetic inductance value will be different according to the number of turns of the
所述绕线部11的截面面积大于所述基体1的截面面积的三分之一，且小于所述基体1的截面面积的四分之三。实现了在电感器小型化的前提下，保证有足够的绕线空间的同时，又保证了较好的磁导率。The cross-sectional area of the winding
所述电极层5至少包含一金属层。本实施例中，所述电极层5可以包括：铜层，所述铜层连接于所述线圈2的端部；镍层，所述镍层连接于所述铜层的远离所述线圈2的端部的一侧；锡层，所述锡层连接于所述镍层的远离所述铜层的一侧。The
其中，线圈的端部和电极层直接导通，之间不需要其他介质，导电性因此增强，同时减小电磁损耗，降低发热。Among them, the end of the coil and the electrode layer are directly connected, and no other medium is needed between them, so the conductivity is enhanced, and the electromagnetic loss and heat generation are reduced at the same time.
所述基体1可以由粉体压铸制成；所述粉体可以为金属粉或钠粉或金属粉与钠粉的混合粉；所述金属粉可以为铁粉或不锈钢粉；且基体的形状可以为T型。The
所述第一保护层3可以由粉体压铸制成，第一保护层与基体采用同一种粉体，并使得线圈不易损坏氧化等；且该第一保护层3与基体1热压于一体，将线圈2包裹于内部，该 第一保护层3与基体1采用同一种粉体，主要起到隔绝作用，使得产品内部不产生电势差，且线圈处于电磁隔离环境中。The first
所述第二保护层4可以由胶材喷制而成，第二保护层4具有抗腐蚀、耐氧化、耐盐酸雾化、耐高温、密闭性。The second
其中，需要说明的是，参照图5所示，第二保护层覆盖整个产品且不覆盖线圈2端部。Wherein, it should be noted that, referring to FIG. 5 , the second protective layer covers the entire product and does not cover the ends of the
参照图6所示，一种被动元件导电电感器的制备方法，该被动元件导电电感器的制备方法可以包括：将粉体冷压制成基体；将线圈缠绕于基体的绕线部上；将粉体热压成型出覆盖于绕线部和基体的外侧的第一保护层；喷胶于第一保护层的外侧而形成第二保护层，经过加热烘烤固化；进行激光剥漆处理，使得线圈的端部露出；制作连接于线圈的引线的表面电极层。Referring to FIG. 6 , a method for preparing a conductive inductor for a passive component may include: cold pressing the powder into a matrix; winding the coil on the winding part of the matrix; The body is hot-pressed to form the first protective layer covering the winding part and the outer side of the substrate; the second protective layer is formed by spraying glue on the outer side of the first protective layer, which is cured by heating and baking; the laser paint stripping treatment is carried out, so that the coil The end of the exposed; make the surface electrode layer connected to the lead wire of the coil.
制作连接于线圈的引线的表面电极层可以包括：将铜层电镀于线圈的端部上；将镍层电镀于铜层的远离线圈的端部的一侧；将锡层电镀于镍层的远离铜层的一侧。Making the surface electrode layer of the lead wire connected to the coil may include: electroplating a copper layer on the end of the coil; electroplating a nickel layer on the side of the copper layer away from the end of the coil; electroplating a tin layer on the far side of the nickel layer. side of the copper layer.
以上实施例仅用以解释说明本公开的技术方案而非对其限制。本领域技术人员应当理解，未脱离本公开的精神和范围的任何修改和等同替换，均应落入本公开的权利要求的保护范围中。The above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit them. Those skilled in the art should understand that any modifications and equivalent replacements that do not deviate from the spirit and scope of the present disclosure shall fall within the protection scope of the claims of the present disclosure.
本公开提供了一种被动元件导电电感器及其制备方法。一种被动元件导电电感器，包括：基体，所述基体上设置有绕线部；线圈，所述线圈缠绕于所述绕线部上，且所述线圈的两端露出所述基体外部；第一保护层，所述第一保护层覆盖于部分所述线圈和所述基体外侧；电极层，所述电极层电连接于所述线圈的两端部。The present disclosure provides a passive element conductive inductor and a preparation method thereof. A conductive inductor for passive components, comprising: a base body, on which a winding part is arranged; a coil, the coil is wound on the winding part, and both ends of the coil are exposed outside the base body; the second A protective layer, the first protective layer covers a part of the coil and the outside of the substrate; an electrode layer, the electrode layer is electrically connected to both ends of the coil.
此外，可以理解的是，本申请的被动元件导电电感器及其制备方法是可以重现的，并且可以应用在多种应用中。例如，本申请的被动元件导电电感器及其制备方法可以应用于电感器领域等。In addition, it is understood that the passive component conductive inductors of the present application and the method of making them are reproducible and can be used in a variety of applications. For example, the passive element conductive inductor of the present application and its preparation method can be applied to the field of inductors and the like.
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| US20090231077A1 (en) * | 2008-03-17 | 2009-09-17 | Cyntec Co., Ltd. | Inductor |
| CN108735433A (en) * | 2017-04-19 | 2018-11-02 | 株式会社村田制作所 | Coil component |
| US20200219651A1 (en) * | 2019-01-09 | 2020-07-09 | Samsung Electro-Mechanics Co., Ltd. | Coil Component |
| CN111834106A (en) * | 2019-04-16 | 2020-10-27 | 三星电机株式会社 | Coil assembly |
| CN114388246A (en) * | 2022-01-05 | 2022-04-22 | 厦门攸信信息技术有限公司 | A passive component conductive inductor and its preparation method |
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| CN109378182A (en) * | 2018-12-19 | 2019-02-22 | 合肥博微田村电气有限公司 | Integrated inductance and its manufacturing method |
| CN209785685U (en) * | 2019-06-24 | 2019-12-13 | 翔声科技（厦门）有限公司 | Thin film circuit common mode filter |
| JP7243666B2 (en) * | 2020-03-13 | 2023-03-22 | 株式会社村田製作所 | inductor |
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| US20090231077A1 (en) * | 2008-03-17 | 2009-09-17 | Cyntec Co., Ltd. | Inductor |
| CN108735433A (en) * | 2017-04-19 | 2018-11-02 | 株式会社村田制作所 | Coil component |
| US20200219651A1 (en) * | 2019-01-09 | 2020-07-09 | Samsung Electro-Mechanics Co., Ltd. | Coil Component |
| CN111834106A (en) * | 2019-04-16 | 2020-10-27 | 三星电机株式会社 | Coil assembly |
| CN114388246A (en) * | 2022-01-05 | 2022-04-22 | 厦门攸信信息技术有限公司 | A passive component conductive inductor and its preparation method |
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