WO2020242187A1 - Élément de bobine primaire pour transformateur de type plat et transformateur de type plat - Google Patents

Élément de bobine primaire pour transformateur de type plat et transformateur de type plat Download PDF

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Publication number
WO2020242187A1
WO2020242187A1 PCT/KR2020/006833 KR2020006833W WO2020242187A1 WO 2020242187 A1 WO2020242187 A1 WO 2020242187A1 KR 2020006833 W KR2020006833 W KR 2020006833W WO 2020242187 A1 WO2020242187 A1 WO 2020242187A1
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Prior art keywords
coil
type
substrate
wire winding
coil element
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PCT/KR2020/006833
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English (en)
Korean (ko)
Inventor
한택수
이정수
Original Assignee
주식회사 에이텀
한택수
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Publication of WO2020242187A1 publication Critical patent/WO2020242187A1/fr

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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
    • H01F27/02—Casings
    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2871—Pancake coils
    • 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
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/06—Insulation of windings

Definitions

  • the present invention relates to a transformer, and in particular, by dividing the primary coil element into two coils, the primary coil element and flat plate for a flat-plate transformer to reduce leakage by increasing the area in close contact with the secondary coil element. It relates to a type transformer.
  • a transformer has a primary coil and a secondary coil, and generally, a primary coil is used as an input stage and a secondary coil is used as an output stage.
  • transformers According to Patent No. 10-1579427 (announcement date: December 22, 2015) are disclosed in relation to small transformers used in mobile phone chargers.
  • the primary coil element for a transformer is composed of a so-called "PCB-type primary coil element" implemented by patterning a conductive material on an insulating substrate.
  • the PCB type primary coil device is manufactured by coating a copper foil on an insulating substrate and forming a coil circuit pattern by etching or the like.
  • the transformer according to No. 10-1579427 above adopts a structure in which a primary coil element is inserted between two secondary coil elements, so there are problems in the generation of a loss magnetic field and efficiency from the primary side to the secondary side. .
  • the conventional PCB type primary coil element forms a circuit pattern on the PCB substrate, there is a problem in that the manufacturing period is basically long, and thus it is not suitable for manufacturing a short delivery period. In addition, there is a problem that it is difficult to cope with design diversification (product tuning) because the PCB type primary coil element is basically patterned on the PCB substrate.
  • the present invention was created to solve the problems of the prior art as described above, and the object of the primary side coil element and the flat-type transformer for a flat-type transformer according to the present invention,
  • the area in which the primary coil element is in close contact with the secondary coil element can be increased to reduce leakage and increase efficiency.
  • the primary coil element for a flat-type transformer is divided into a wire winding coil and a substrate-type coil, and the main coil part through which a large current flows is composed of the main air core coil part, and the auxiliary coil pattern layer through which a relatively small current flows is formed. By doing so, it is possible to make the thickness of the primary coil element thinner,
  • the wire winding coil is loaded into the housing and the wire is pulled out to make wiring easier and more convenient.
  • the height of the coil element on the primary side can be lowered, and the appearance of the product can be made compact.
  • the board-type coil eliminates the need for a separate cover, so the number of parts and the height of the product can be reduced.
  • the leakage magnetic field can be remarkably reduced, so that the efficiency from the primary coil element to the secondary coil element can be improved.
  • the resistance is low and heat generation is low (excellent heat generation characteristics. ), and also allows the transfer efficiency to the secondary side coil element to be improved,
  • the eleventh by configuring the primary coil element as a hybrid type (hybrid type) of a wire winding coil and a substrate type coil, it provides a primary coil element and a flat plate type transformer suitable for coping with various design environments. I have to.
  • the primary coil element for a planar transformer according to the present invention for achieving the above object includes a first coil element having a plate shape, and a second plate shape that is in contact with the first coil element or spaced apart from the first coil element. It characterized in that it is configured to include a coil element.
  • the planar transformer according to the present invention for achieving the above object includes a primary coil element, and a planar secondary coil element in which an induced current is generated by the current applied to the first coil element and the second coil element. It characterized in that it is configured to.
  • the present inventors having the above-described configuration, the primary coil element and the flat-type transformer for a flat-type transformer has the following effects.
  • the primary coil element by separating the primary coil element into a first coil element and a second coil element, the area in which the primary coil element is in close contact with the secondary coil element can be increased, thereby reducing leakage and further increasing the efficiency. There is an effect.
  • the primary coil element for a flat-type transformer into a wire winding coil and a substrate-type coil, and the main coil part through which a large current flows is composed of the main air core coil part, and formed as an auxiliary coil pattern layer through which a relatively small current flows There is an effect of reducing the thickness of the primary coil element.
  • the leakage magnetic field can be remarkably reduced, so that the efficiency from the primary coil element to the secondary coil element can be improved. have.
  • the resistance is low and heat generation is low (excellent heat generation characteristics. ), there is also an effect that the transfer efficiency to the secondary coil element can be improved.
  • the primary coil element as a mixed type (hybrid type) of a wire winding coil and a substrate type coil, there is an effect capable of responding to various design environments.
  • FIG. 1 is a perspective view of a primary-side coil device 100 for a flat-type transformer according to an embodiment of the present invention.
  • FIG. 2 is an exploded configuration diagram of FIG. 1.
  • FIG. 3 is an exploded configuration diagram of FIG. 2.
  • FIG. 4 is a cross-sectional view of a primary coil element 100 for a flat-type transformer according to an embodiment of the present invention.
  • FIG 5 is an exploded perspective view of a case in which the wire winding coil 110 adopts the auxiliary air core coil unit 112 in the primary coil element 100 for a flat-panel transformer according to an embodiment of the present invention.
  • the substrate-shaped coil 120 is two of the upper substrate-type coil (120A) and the lower substrate-type coil (120B). It is an exploded perspective view when divided into a substrate.
  • FIG. 7 is a perspective view of a planar transformer A according to an embodiment of the present invention.
  • FIG. 8 is a rear perspective view of FIG. 7.
  • FIG. 9 is an exploded perspective view of FIG. 7.
  • FIG. 10 is a rear exploded perspective view of a secondary coil element in a flat-panel transformer (A) according to an embodiment of the present invention.
  • FIG. 11 is a cross-sectional view of a planar transformer (A) according to an embodiment of the present invention.
  • FIG. 12 is a perspective view of a first coil 211 and a second coil 221 in the planar transformer A according to an embodiment of the present invention.
  • FIG. 13 is a perspective view illustrating a case in which a cover 130 is added in the flat-panel transformer A according to an embodiment of the present invention.
  • the flat-panel transformer according to the present invention is a transformer mounted on a main PCB of a charger or adapter and used for a charger or adapter.
  • the primary-side coil device 100 for a flat-panel transformer includes a first coil device 110 on a flat plate, and a plane contact with the first coil device 110 or a first coil device. It is characterized in that it is configured to include a second coil element 120 in the shape of a flat plate located spaced apart from (110).
  • the primary coil element 110 By separating the primary coil element 110 into the first coil element 110 and the second coil element 120 as described above, the area in which the primary coil element 100 is in close contact with the secondary coil element 200 There is an advantage in that the loss (leakage) can be reduced and the efficiency can be further increased by increasing the value.
  • any one of the first coil element 110 and the second coil element 120 has a central air core 110a formed in the center and is formed by winding an insulating coated conductive wire in contact with each other to form a flat plate. Consisting of a winding coil 110, the remaining one of the first coil element 110 and the second coil element 120 has a through hole 120a communicating with the central air core 110a, and a conductor It is characterized in that the coil pattern layer in which the pattern is formed in a spiral shape is formed of a substrate-type coil 120 formed on an insulating substrate.
  • One or more coil pattern layers are stacked on the substrate-type coil 120, and the coil pattern layer is omitted in the drawings.
  • the substrate-type coil 120 may be, for example, a printed circuit board (PCB).
  • PCB printed circuit board
  • the primary coil element 100 for a flat-type transformer into a wire winding coil 110 and a substrate-type coil 120, it is possible to increase the contact area to reduce leakage and increase efficiency. There is an advantage that can be increased.
  • the main coil part through which a large current flows is composed of a wire winding coil 110
  • the auxiliary coil part through which a relatively small current flows is composed of the substrate-type coil 120.
  • the applicant of the present invention refers to the primary coil element 100 for a flat-type transformer in which the primary-side coil element for a flat-type transformer is divided into a wire winding coil 110 and a substrate-type coil 120 as a "hybrid coil. Device".
  • the wire winding coil 110 is supported on one surface of the substrate-type coil 120 by being in contact with one surface (one of the upper surface 120b or the lower surface 120c) of the substrate-type coil 120 have.
  • the wire winding coil 110 is disposed on and in contact with the upper surface 120b of the substrate-type coil 120, but is not limited thereto. It goes without saying that even if 110) is disposed below the substrate-type coil 120 in contact with the lower surface 120c, it falls within the technical scope of the present invention.
  • a central hole (130a) is formed in the center so as to communicate with the central air core (110a) of the wire winding coil (110) and the through hole (120a) of the substrate type coil (120), and contacts the substrate type coil (120).
  • the wire winding coil 110 in an inner space formed by the housing 130 and the substrate-type coil 120 further includes a housing 130 that covers the wire winding coil 110 that is supported and is It is characterized by being built-in.
  • the housing 130 is formed of, for example, an insulating material made of a synthetic resin material.
  • the wire winding coil 110 is provided in a seating space Sa formed by the base portion 131 and the outer guide 132 and the inner guide 133, and the inner guide 215 is the wire winding coil ( 110) to hold the inner peripheral surface (100a') of the central air core (110a) of the wire winding coil 110 by contacting the inner peripheral surface (110a') of the central air core (110a), the outer guide 132 is the wire winding coil By contacting the outer circumferential surface 110b of 110 and holding the outer circumferential surface 110b of the wire winding coil 110, the wire winding coil 110 is provided in the seating space Sa of the housing 130 without any gap or flow. do.
  • the outer guide 132 and the inner guide 133 are formed to protrude in a frame shape.
  • the base portion 131 is formed in a plane shape, it is not limited thereto, and even when formed in a plurality of linear shapes, it is of course within the technical scope of the present invention.
  • the substrate-type coil 120 has a plurality of primary terminal holes 124 for fastening the primary terminal pins (P1), and is fastened to the primary terminal hole 124 to mount a transformer [ For example, four primary terminal pins P1 connected to the main PCB (not shown) of the charger or adapter] are further included. Current is supplied to the primary coil element 100 through the primary terminal pin P1.
  • the substrate-type coil is separated from the primary-side terminal hole 124 so as to be electrically connected to the primary-side terminal hole 124 ( It is formed in 120), characterized in that it is configured to include an insertion hole 125 by inserting the wire of the wire winding coil 110.
  • the insertion hole 125 When the wire of the wire winding coil 110 is inserted into the insertion hole 125, the insertion hole 125 is electrically connected to the primary terminal hole 124, so that the wire winding coil 110 is connected to the primary terminal pin (P1). ) And final.
  • connection to P1 can be made easily and conveniently.
  • the primary-side coil device 100 for a flat-panel transformer is a wire drawer for pulling out the wire w of the wire winding coil 110 to the outer guide 132 of the housing 130 It is configured to further include a ball 135.
  • wire winding coil 110 can be easily and conveniently connected by pulling out the wire in a state in which it is inserted into the housing 130.
  • the wire of the wire winding coil 110 can be withdrawn through the outer guide 132 having the withdrawal hole 135 formed, it is possible to insert and connect the wire directly into the insertion hole 125 of the shortest distance by drawing the wire to the side. , There is an advantage that the height of the primary coil element 100 can be lowered, and the appearance of the product can be made compact.
  • the substrate-type coil 120 is configured by being separated into an upper substrate-type coil 120A and a lower substrate-type coil 120B positioned spaced apart from the upper substrate-type coil 120A.
  • the wire winding coil 110 is interposed between the upper substrate type coil 120A and the lower substrate type coil 120B and is provided.
  • the substrate-type coil 120 serves as a cover [or bottom] covering the seating space Sa of the housing 130. Therefore, since a separate cover is not required by the substrate-type coil 120, there is an advantage in that the number of parts and the height of the product can be reduced.
  • the primary coil element 100 for a flat-panel transformer has a main coil portion that induces an induced voltage to the secondary coil element by applying a primary current through a main PCB of a finished product [transformer or adapter], and a main PCB (not shown).
  • the auxiliary coil part used to drive the IC device or the like to be mounted in the city) is essentially provided, and a shielding part may be optionally provided according to embodiments.
  • the main coil part, the auxiliary coil part and the shield part constituting the primary coil device 100 for a flat-panel transformer may be configured in various combinations with the first coil device 110 and the second coil device 120, in any case. Of course, it belongs to the technical scope of the present invention.
  • the wire winding coil 110 has a first air core 111a formed in the center and includes a main air core coil part 111 formed by contacting each other with insulating coated conductive wires and winding them in a flat plate shape.
  • the main air core coil part 111 corresponds to the main coil part.
  • the wire winding coil 110 has a second air core 112a formed in the center, and is formed by winding an insulating coated conductive wire in contact with each other and winding it in a flat plate shape.
  • An auxiliary air core coil unit 112 for generating and outputting an induced voltage may be further included, and the induced voltage output from the auxiliary air core coil unit 112 is an IC element mounted on a main substrate (not shown). It is used for driving as described above.
  • the wire winding coil 110 is provided in contact with the main air core coil part 111 and a central hole 113a is formed to communicate with the first air core 111a, and is formed in a flat plate shape.
  • a conductive shielding member 113 for shielding EMI may be further included and configured.
  • the main air core coil unit 111 and the auxiliary air core coil unit 112 may be provided in both the wire winding coil 110, or only one of the two may be provided.
  • FIG. 3 the main air core coil unit 111 ) Is shown
  • FIG. 5 shows an example in which the auxiliary air core coil unit 112 is provided.
  • the substrate-type coil 120 as in the wire winding coil 110, at least one of a main coil pattern layer (not shown) corresponding to the main coil part and an auxiliary coil patch layer (not shown) corresponding to the auxiliary coil part. One is formed.
  • the main coil pattern layer is a conductor pattern layer for inducing an induced voltage to a secondary coil element by applying a primary current through a main PCB of a finished product [transformer or adapter], and the auxiliary coil pattern layer is a main PCB (not shown) As described above, it is a conductor pattern layer used to drive an IC device or the like mounted on the device.
  • a shielding pattern layer for shielding EMI may be further formed on the substrate-type coil 120, and the shielding pattern layer is a configuration corresponding to the above-described shielding part.
  • Which of the wire winding coil 110 and the substrate-type coil 120 to configure the main winding portion, auxiliary winding portion, and shielding portion as described above may be configured in various combinations depending on the embodiment. Therefore, various modifications will be possible.
  • the main air core coil part 111 corresponding to the main coil part is provided on the wire winding coil 110, and the auxiliary coil pattern layer (not shown) corresponding to the auxiliary coil part is a substrate type. It may be formed in the coil 120.
  • the shielding coil unit 113 may be selectively provided on the wire winding coil 110, and a shielding coil layer may be formed on the substrate-type coil 120 as well.
  • a main coil pattern layer (not shown) corresponding to the main coil part may be formed on the substrate-type coil 120, and the auxiliary air core coil part 112 corresponding to the auxiliary coil part It may be provided in the wire winding coil 110.
  • the shielding coil unit 113 may be selectively provided on the wire winding coil 110, and a shielding coil layer may be formed on the substrate-type coil 120 as well.
  • the upper side is provided between the main air core coil unit 111 (or auxiliary air core coil unit 112) and the shield air core coil unit 113 and has a through hole communicating with the first air core 111a in the center
  • An insulating sheet C1 may be further included.
  • An adhesive layer is formed on the upper and lower surfaces of the upper insulating sheet C1, thereby performing an insulating function and an adhesive function of adhering the upper and lower components.
  • the lower adhesive sheet (C2) provided under the main air core coil portion 111 (or the auxiliary air core coil portion 112) and having a through hole communicating with the first air core 111a is formed in the center. It may be further included and configured.
  • An adhesive layer is formed on the upper and lower surfaces of the lower insulating sheet C2, and thus performs an insulating function and an adhesive function for adhering the upper and lower components.
  • the upper and lower insulating sheets C1 and C2 may be formed of an insulating film made of a synthetic resin material.
  • the wire winding coil 110 includes a shielding air core coil unit 113 and a main air core coil unit 111
  • the substrate-type coil 120 has the above A main coil pattern layer (not shown) connected in series with the main air core coil unit 111, an auxiliary coil pattern layer (not shown), and a shielding coil pattern layer (not shown) may be formed.
  • the wire winding coil 110 and the substrate type coil 120 may be configured in various combinations, and in any case, it is of course within the technical scope of the present invention.
  • the primary coil element 100 for a flat-panel transformer further includes a connection pin Pn to which the wire winding coil 110 and the substrate-type coil 120 are respectively connected, and , The wire winding coil 110 and the substrate-type coil 120 are connected in series by the connection pin Pn.
  • connection pin Pn the main air core coil part 111 of the wire winding coil 110 and the main coil pattern layer (not shown) of the substrate-type coil 120 are directly connected to each other by a connection pin Pn.
  • the primary coil element 100 for a flat-type transformer reliably holds the wire winding coil 110 loaded therein without a gap or flow
  • the substrate-type coil ( 120) may be configured to further include a fastening means (not shown) for reliably fixing.
  • the fastening means should be formed on the housing 130 and the substrate-type coil 120 so as to be fastened by a fitting type or formed by an insertion method.
  • planar transformer (A) having the primary coil element 100 for a planar transformer having the above configuration and action will be described.
  • the planar transformer (A) is an induced current by a current applied to the primary-side coil element 100 and the first coil element 110 and the second coil element 120 It is characterized in that it is configured to include a secondary side coil element 200 on a flat plate in which is generated.
  • the secondary coil element 200 includes a first coil body 210 and a second coil body 220 provided in contact with or spaced apart from the first coil body 210 To do.
  • the first coil body 210 includes a first coil pattern part 211b formed in a flat spiral pattern, and the first coil pattern part Consists of a first connection part 211c that is bent upward at one end of (211b) and then bent back to be bent in a U shape, and a first terminal 211a formed at the end of the first connection part 211c
  • the first coil 211 is formed, and a first insulating part 212 made of synthetic resin containing the first coil 211 excluding the first terminal 211a so that a first central through hole 210a is formed in the center. It characterized in that it is configured to include.
  • the second coil body 220 is bent downward at one end of the second coil pattern part 221b formed in a flat spiral pattern and the second coil pattern part 221b, and then back to the rear.
  • a second coil 221 composed of a second connection part 221c that is bent and bent in a U-shape, and a second terminal 221a formed at the end of the second connection part 221c, and a second central through hole in the center It is characterized in that it comprises a second insulating portion 212 made of a synthetic resin material containing the second coil 221 excluding the second terminal 221a so that (220a) is formed.
  • the first connection part 211c is bent upward at one end of the first coil pattern part 211b and then bent back to form a U-shape. Bending is formed, and the second connection part 221c is bent downward at one end of the second coil pattern part 221b and then bent back to form a U-shaped bend.
  • the planar transformer according to an embodiment of the present invention is characterized in that the primary coil element and the secondary coil element are arranged in a zigzag manner.
  • the wire winding coil 110 and the substrate-type coil 120 are spaced apart from each other, and the first coil body of the secondary coil element 200 ( 210) and the second coil body 220, any one of the coil bodies 210, 220 is disposed between the wire winding coil 110 and the substrate-type coil 120, so that the primary coil element 110 and the secondary coil
  • the element 200 is characterized in that it is provided so as to be alternately arranged (zigzag) with respect to the vertical direction [vertical direction].
  • the “alternately arranged” means that one of the wire winding coil 110 and the substrate type coil 120 is provided between the first coil body 210 and the second coil body 220 facing each other, ,
  • the other means that the first coil body 210 is disposed on the upper surface or the lower surface of the second coil body 220.
  • the wire winding coil 110, the first coil body 210, the substrate type coil 120, and the second coil body 220 are arranged in the order (see FIGS. 5 to 12). ], or the first coil body 210, the wire winding coil 110, the second coil body 220, and the substrate-type coil 120 in that order.
  • the generation of the loss magnetic field is remarkably reduced and the efficiency from the primary side to the secondary side is remarkably increased. There is this.
  • the primary coil element is disposed between the upper and lower sides of the secondary coil element as in the prior art, the two sides of the secondary coil element (a total of four sides of the secondary coil element, that is, the upper and lower two sides and The primary coil is in contact with a total of two faces, one of the top and bottom of the bottom and one of the bottom of the top and one of the bottom of the bottom), but if the primary coil element and the secondary coil element are arranged in zigzag as above, three sides The primary coil cauterizer comes into contact with.
  • the planar transformer (A) is formed on at least one of the first coil body 210 or the second coil body 220, so that the wire winding coil 110 and the substrate-type coil ( It is characterized in that it is configured to further include holding members (231, 232, 233, 234) for holding the 120).
  • the holding members 231, 232, 233 and 234 are formed to protrude outward from one surface (for example, the upper surface or the lower surface) of the first coil body 210 and the second coil body 220, so that the wire winding coil 110 and the substrate coil 120 ).
  • the holding members 231, 232, 233, 234 are formed to protrude from one surface (the upper surface in the illustrated example) to one of the upper or lower surfaces of the first coil body 210 in a vertical direction (for example, upward), so that there is no separation or gap.
  • the second holding member 233,234 for holding the other one of the wire winding coil 110 and the substrate-type coil 120 is formed to protrude in one (for example, upward) in the vertical direction, which is the same protruding direction as, so that there is no separation or gap. ) Characterized in that it is configured to include.
  • the first holding members 231 and 232 for holding the wire winding coil 110 by protruding downward from the lower surface of the first coil body 210 and protruding downward from the lower surface of the second coil body 220 may be composed of lower holding members 233 and 234 for holding the substrate-type coil 120.
  • This embodiment is the same as the case of turning the first and second coil bodies 210 and 220 upside down. It goes without saying that it is included in the technical scope of the invention.
  • the wire winding coil 110 and the substrate-shaped coil 120 are positioned on the upper side of the first coil body 210 and the second coil body 220 and are alternately provided, they protrude upward from the upper surface.
  • the wire winding coil 110 and the substrate-type coil 120 are positioned under the first coil body 210 and the second coil body 220 and are alternately provided, they protrude downward from the lower surface. It is formed, in any case, falls within the technical scope of the present invention.
  • the first holding members 231 and 232 are formed to protrude from one surface (eg, upper surface 212b) of the first coil body 210 in a vertical direction (eg, upward), and through holes of the substrate-type coil 120 ( A first inner protrusion 231 that contacts the inner circumferential surface of 120a) to hold the inner circumferential surface of the substrate-type coil 120, and the first coil body 210 is spaced out from the first inner protrusion 231 in a horizontal direction ) Is formed protruding from one side (eg, upper surface 212b) in a vertical direction (eg, upward) in the same direction as the protruding direction of the first inner protrusion 231, and contacts the outer peripheral surface of the substrate-type coil 120 It is characterized in that it is configured to include a first outer protrusion 232 for holding the outer peripheral surface of the plate-shaped coil 120.
  • the second holding members 233 and 234 are formed to protrude from one side (eg, upper surface 222b) of the second coil body 220 in a vertical direction (eg, upward), and the wire winding coil 110
  • a second inner protrusion 233 that contacts the inner circumferential surface 110a ′ of the central air core 110a to hold the inner circumferential surface 110a ′ of the central air core 110a of the wire winding coil 110
  • the second inner protrusion One side of the second coil body 220 in the vertical direction, which is the same direction as the protruding direction of the first inner protrusion 231 from one side (eg, upper surface 222b) of the second coil body 220 by being spaced outward in the horizontal direction at 233 (eg, upward)
  • a second outer protrusion 234 that is formed to protrude and holds the outer peripheral surface 110b of the wire winding coil 110 by contacting the outer peripheral surface 110b of the wire winding coil 110.
  • the wire winding coil 110 is mounted on the upper surface 222b of the second coil body 220, and the An embodiment in which the substrate-type coil 120 is mounted on the upper surface 212b of the first coil body 210 is described, but the present invention is not limited thereto, and the wire winding coil 110 includes first inner and outer protrusions ( It is placed on the upper surface 212b of the first coil body 210 between 231 and 232, and the substrate-shaped coil 120 is the upper surface of the first coil body 210 between the second inner and outer protrusions 233 and 234 It goes without saying that it belongs to the technical scope of the present invention even if it is placed in (212b).
  • the wire w of the main air core coil unit 111 is connected to the primary terminal pin P1 in order to be terminated inside the main air core coil unit 111 and connect to the primary terminal pin P1.
  • the wire (w) of the auxiliary air core coil unit 112 is terminated from the inside of the auxiliary air core coil unit 112 and is connected to the primary terminal pin (P1) is connected to the primary terminal pin (P1).
  • the second inner protrusion 233 has a passage slit for connecting the wire w of the main air core coil part 111 and the wire w of the auxiliary air core coil part 112 to the primary terminal pin P1. (261,262) are formed, and this wire (w) is inserted at the same time as passing through the through slits (261,262) and connected to the primary terminal pin (P1).
  • the through slits 261 and 262 may be formed as a pair for inserting the wire w of the main air core coil unit 111 and the wire w of the auxiliary air core coil unit 112, respectively.
  • a primary terminal for installing a primary terminal pin P1 on any one of the first coil body 210 or the second coil body 220 (the second coil body 220 in the illustrated embodiment) Block 240 is formed, the primary terminal block 240 is provided with a primary terminal pin (P1) for connecting to the wire winding coil 110, the wire (w) of the wire winding coil 110 ) Is directly connected to the primary terminal pin (P1) so that the wire winding coil 110 and the primary terminal pin (P1) are electrically connected, and the primary terminal pin (P1) is connected to the primary terminal hole (124). It is inserted and characterized in that the substrate-type coil 110 and the primary terminal pin (P1) are electrically connected to each other.
  • the primary-side terminal block 240 is characterized in that a wire passage groove (240a) for passing the wire through the primary terminal pin (P1) to connect the wire (w) of the wire winding coil 110 is formed. do.
  • each of the first terminal (211a) of the first coil body and the second terminal (221a) of the second coil body are connected to the main PCB (not shown) of the finished product (eg, charger or adapter) on which the transformer is mounted.
  • the finished product eg, charger or adapter
  • a secondary terminal pin (not shown) must be provided.
  • a central hole 310a is formed and held by the first holding members 231 and 232 so that the first coil body 210 It is characterized in that the top cover 310 coupled to the first coil body 210 to cover (cover) the wire winding coil 110 or the substrate-type coil 120 seated on one side of the top cover 310 is further included. .
  • the wire winding coil 110 or the substrate-type coil 120 can be charged in the space formed by the first inner protrusion 231, the first outer protrusion 232 and the upper cover 310, so that it is more stable. It can be implemented.
  • a first fastening protrusion 215 is formed on one surface of the first coil body 210, and a first fastening hole 310b fastened to the first fastening protrusion 215 in the upper cover 310
  • the upper cover 310 is coupled to one surface of the first coil body 210.
  • the method of fastening the upper cover 310 is not limited to the above configuration, and may be fastened by, for example, an adhesive method or a method by taping.
  • first coil body 210 and the second coil body 220 are provided in close contact, and the upper surface of the first coil body 210 and the lower surface of the second coil body 220
  • first coil element 110 and a second coil element 120 respectively.
  • the first connection part 211c is bent downward at one end of the first coil pattern part 211b and then bent back to form a U-shaped bend
  • the second connection part 221c is After being bent upward at one end of the second coil pattern part 221b, it is bent back to form a U-shaped bend.
  • the connection part 221c is characterized in that it is U-bend so as not to overlap each other. Accordingly, there is an advantage in that the thickness of the secondary coil element 200 can be reduced.
  • the first connection part 211c is U-bent downward and then rearwardly bent diagonally, and the second connection part 221c is formed U-bending backward, so that the first connection part 211c and the second The connection part 221c is characterized in that it is formed so as not to overlap each other. Accordingly, there is an advantage of being able to manufacture the first connection part 211c and the second connection part 221c so that they do not overlap each other even in a small area.
  • a bridge (Br) for connecting the first coil pattern part 212 and the second coil pattern part 222 in series. ) May be further included, and the first coil body 210 and the second coil body 220 are configured in series by the bridge (Br).
  • the first coil body 210 and the second coil body 220 are connected by a bridge (Br) to be serially configured, but the present invention is not limited thereto. Even when the integral 210 and the second coil body 220 are configured in parallel without connection, they belong to the technical scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

La présente invention concerne un élément de bobine primaire pour un transformateur de type plat et un transformateur de type plat. L'élément de bobine primaire pour un transformateur de type plat selon la présente invention comprend: un premier élément de bobine de type plat (110) ; et un second élément de bobine de type plat (120) en contact avec le premier élément de bobine (110), et le transformateur de type plat selon la présente invention comprend: un élément de bobine primaire (100); et un élément de bobine secondaire de type plat (200) pour générer un courant induit en fonction des courants appliqués au premier élément de bobine (110) et au second élément de bobine (120).
PCT/KR2020/006833 2019-05-28 2020-05-27 Élément de bobine primaire pour transformateur de type plat et transformateur de type plat WO2020242187A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0062434 2019-05-28
KR1020190062434A KR102281274B1 (ko) 2019-05-28 2019-05-28 평판형 변압기

Publications (1)

Publication Number Publication Date
WO2020242187A1 true WO2020242187A1 (fr) 2020-12-03

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WO (1) WO2020242187A1 (fr)

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Publication number Priority date Publication date Assignee Title
KR20240003409A (ko) * 2022-06-30 2024-01-09 유형주 전자석 유니트

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004303746A (ja) * 2003-03-28 2004-10-28 Matsushita Electric Ind Co Ltd 薄形トランス
JP2010171161A (ja) * 2009-01-22 2010-08-05 Tdk Corp コイル部品
KR20110111778A (ko) * 2010-04-05 2011-10-12 삼성전기주식회사 평면형 트랜스포머 및 이의 제조 방법
KR101590132B1 (ko) * 2015-07-31 2016-02-01 삼성전기주식회사 트랜스포머, 및 판상 코일 성형체
KR20170002600U (ko) * 2016-01-08 2017-07-18 페어차일드코리아반도체 주식회사 다층 회로 기판을 갖는 평면 변압기

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101825222B1 (ko) 2015-10-21 2018-03-14 주식회사 에이텀 보호 코일 및 그를 이용하는 변압기
KR101579427B1 (ko) 2015-10-28 2015-12-22 주식회사 에이치에스씨 트랜스포머

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004303746A (ja) * 2003-03-28 2004-10-28 Matsushita Electric Ind Co Ltd 薄形トランス
JP2010171161A (ja) * 2009-01-22 2010-08-05 Tdk Corp コイル部品
KR20110111778A (ko) * 2010-04-05 2011-10-12 삼성전기주식회사 평면형 트랜스포머 및 이의 제조 방법
KR101590132B1 (ko) * 2015-07-31 2016-02-01 삼성전기주식회사 트랜스포머, 및 판상 코일 성형체
KR20170002600U (ko) * 2016-01-08 2017-07-18 페어차일드코리아반도체 주식회사 다층 회로 기판을 갖는 평면 변압기

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KR102281274B1 (ko) 2021-07-23

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