JP2016039323A - Coil component and method of manufacturing coil component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coil component, the Q-value of which can be adjusted by a system alternative to one of changing a resistance value, and to provide a method of manufacturing the coil.SOLUTION: A coil component 100 includes: a pair of terminals 110(111, 113); a body coil 130 formed of a first wire having ends conducting with different terminals 111 and 113, respectively, and wound around a predetermined central axis in at least a partial section between one end and the other end; and a short circuit coil 140 formed of a second wire, two points included in the second wire being short-circuited, and wound in at least a partial section between the two points, and arranged so that magnetic fluxes generated in the body coil 130 intersects unevenly.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a coil component and a method for manufacturing the coil component.

A keyless entry system that can be locked and unlocked by directly transmitting and receiving signal radio waves without directly touching a door of an automobile or a house has been put into practical use. In order to realize a keyless entry system, many coil antennas that can transmit and receive signal radio waves are employed. Many coil antennas are also used in so-called radio-controlled timepieces that attempt to perform accurate time adjustment using radio waves.
In addition, the coil component comprised from a magnetic body core and a winding coil is applied suitably for a coil antenna. A system including a coil antenna as a component is also referred to as a coil antenna system.

In recent years, a demand for a coil antenna capable of transmitting and receiving a stable radio signal in a wide frequency band has increased (in the following description, it is also referred to as a broadening of the coil antenna).
In order to increase the bandwidth of the coil antenna, it is necessary to apply a strong alternating current having a specific frequency to the coil antenna to generate a strong magnetic field and transmit a radio signal. For this reason, an allowable characteristic range allowed for transmitting and receiving wireless signals is set wide. By doing so, even if the characteristics of individual coil antenna products vary, they fall within the allowable range, so that the simplification of design and the degree of freedom for manufacturing the coil antenna can be improved. As a result, the cost of the coil antenna product can be reduced.
The following Patent Document 1 is exemplified as a technique related to this type of coil antenna.

  Patent Document 1 discloses a technique related to a communication device used in a keyless entry system. The communication apparatus changes the code length of a spread code used for spread spectrum and varies the Q value of the antenna according to the noise situation in the usage environment, thereby long-range communication in a narrow band and short-range communication in a wide band. Is realized with the same antenna.

JP 2008-258817 A

In Patent Document 1, the variation of the Q value of the antenna is realized by changing the resistance value of the antenna resonance circuit (see FIG. 1 of Patent Document).
In the configuration in which a resistance element is connected in series to the coil antenna as in the antenna resonance circuit shown here, when the resistance value is increased in order to satisfy a desired Q value, the applied alternating current increases. The coil antenna became very hot and could cause problems.

  The present invention has been made in view of the above problems, and a coil component that can easily achieve a desired Q value by a method that replaces the variation of the resistance value and that has excellent manufacturing stability, and the coil A method for manufacturing a component is provided.

  According to the present invention, at least a part between one end and the other end is formed by a pair of terminal portions and a first wire, and the end portions are electrically connected to the different terminal portions. In the section, the main body coil portion wound around a predetermined central axis and the second wire rod are formed, the two points included in the second wire rod are short-circuited, and the two points There is provided a coil component comprising: a short-circuited coil portion that is wound in at least a part of the section and arranged so that magnetic fluxes generated in the main body coil portion cross each other.

  According to the present invention, there is provided a manufacturing method of a coil component including a pair of terminal portions, wherein one end of a first wire is connected to one terminal portion, and the first wire is centered on a predetermined central axis. Winding to form a first winding portion, and the other end of the first wire is electrically connected to the other terminal portion, and the magnetic flux generated in the first winding portion is unevenly intersected And a short-circuiting coil forming step of forming a second winding part by winding at least a section between two points included in the second wire rod, and short-circuiting the two points. A manufacturing method is provided.

  According to the above invention, since the short-circuited coil portion cancels the magnetic field generated in the main body coil portion when the coil component is energized, the Q value of the entire coil component can be reduced. Further, if the number of turns of the short-circuited coil portion is changed, the magnitude of the effect of changing the Q value also changes, so that the Q value of the coil component can be suitably adjusted.

  ADVANTAGE OF THE INVENTION According to this invention, the desired Q value can be easily implement | achieved by the system replaced with the fluctuation | variation of resistance value, and the coil component which is excellent in manufacture stability, and the manufacturing method of the said coil component are provided.

It is a perspective view of the coil component in this embodiment. It is a figure which expands and shows the vicinity of the capacitor | condenser component mounted in the coil component. It is a figure which expands and shows the binding part of a main body coil part and a short circuit coil part. It is an electric circuit diagram of a coil component. It is a figure which shows the passage characteristic of the series resonance circuit comprised in the coil components. It is a perspective view of the coil component of a 1st modification. It is a cross-sectional schematic diagram of the coil component in the vicinity of the 1st winding part. It is a figure which expands and shows the vicinity of the capacitor | condenser component in the coil component of a 2nd modification. It is a figure which expands and shows the binding part of the main body coil part and short circuit coil part in the coil components of a 2nd modification. It is a figure which expands and shows the vicinity of the capacitor | condenser component in the coil component of a 3rd modification. It is a figure which expands and shows the binding part of the main body coil part in the coil component of a 3rd modification, and a short circuit coil part. It is a perspective view of the coil component of a reference form.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

<Outline of coil component 100>
First, an outline of the coil component 100 will be described with reference to FIG.
FIG. 1 is a perspective view of a coil component 100 according to this embodiment.

As shown in FIG. 1, the coil component 100 includes a pair of terminal portions 110 (111, 113), a main body coil portion 130, and a short-circuit coil portion 140.
The main body coil portion 130 is formed of a first wire rod, and is electrically connected to terminal portions 111 and 113 having different end portions, and has a predetermined center in at least a section between one end portion and the other end portion. It is wound around an axis.
The short-circuiting coil part 140 is formed of a second wire, two points included in the second wire are short-circuited, and wound at least in a section between the two points. Are arranged so that the magnetic fluxes generated in the crossing are biased.

Here, the predetermined central axis is the central axis of the base portion 150 in the present embodiment. In the present embodiment, the main body coil portion 130 and the short-circuit coil portion 140 are formed by being wound around the base portion 150.
In addition, in this embodiment, although demonstrated in the aspect which forms the main body coil part 130 and the short circuit coil part 140 around the base part 150 which inserted the magnetic body core 160, this invention is not limited to this aspect. For example, the main body coil unit 130 and the short-circuiting coil unit 140 may be air-core coils or may be coils that are directly wound around the magnetic core 160. Therefore, the base part 150 and the magnetic core 160 may be omitted from the coil component 100.

  Here, the short circuit means that two points included in the electric circuit constituted by the second wire are connected with low impedance. Here, the low impedance refers to an impedance that is sufficiently smaller than the impedance of the entire coil component 100 as viewed from the pair of terminal portions 110.

  Here, “the magnetic flux generated in the main body coil portion 130 is biased and intersects with the short-circuit coil portion 140” means that the magnetic flux in one direction is about the direction of the magnetic flux passing through the region partitioned by the short-circuit coil portion 140. More than the magnetic flux in the other direction.

  Since the coil component 100 is configured as described above, when a magnetic field is generated by energizing the main body coil unit 130, a magnetic field in a direction that cancels the magnetic field is generated in the short-circuited coil unit 140 by mutual induction. Accordingly, the Q value of the coil component 100 as a whole is reduced. Moreover, since the magnitude of the effect of reducing the Q value varies by changing the number of turns of the short-circuit coil unit 140, the desired Q value of the coil component 100 can be easily realized.

  In addition, since the coil component 100 does not need to be added with a resistance element as compared with the method of changing the Q value by using a resistor, the number of components and the number of man-hours can be reduced, and the manufacturing cost can be reduced. be able to.

  In addition, the coil component 100 includes a magnetic core 160 that passes through the inside of the main body coil portion 130 and the inside of the short-circuit coil portion 140. That is, the common magnetic core 160 is inserted into the main body coil portion 130 and the short-circuit coil portion 140. Therefore, the effect of reducing the Q value described in the previous stage is preferably exhibited.

<About widening the coil component 100>
Next, the widening of the coil component 100 will be described with reference to FIGS.
FIG. 4 illustrates the electrical configuration of the coil component 100. Between one terminal portion 111 and another terminal portion 113, the capacitor component 120, the short-circuited coil portion 140, and the main body coil portion 130 are connected in series to form a series resonance circuit. Further, the magnetic core 160 acts over the main body coil portion 130 and the short-circuit coil portion 140.

  Here, the pass characteristic of the series resonance circuit comprised in the coil component 100 is demonstrated with reference to FIG. In FIG. 5, the vertical axis represents the passage characteristic T of the coil antenna, and the horizontal axis represents the frequency f of the alternating current applied to the coil component 100.

The solid line L ₁ shown in FIG. 5 represents the pass characteristics of the coil component 100 of the present embodiment. The frequency at the peak T ₁₀ of the transmission characteristic represented by the thick line L ₁ matches the resonance frequency f ₀ of the coil component 100. A thick broken line L ₂ represents a pass characteristic when an alternating current is applied to the coil component 100 at a frequency f ₁ slightly shifted from the resonance frequency f ₀ that should be originally obtained.
Thin lines shown in FIG. 5 L ₃ represents a pass characteristic of the coil component excluding the short circuit coil portion 140 from the coil component 100 of the present embodiment (not shown). That is, fine line L ₃ corresponds to the pass characteristic of the coil component that is configured by the same components as the capacitor component 120 and the body coil section 130 and the base portion 150 (not shown). Here, the frequency at the peak _{T 2} of the pass characteristic represented by a thin line _{L 3,} the resonance frequency: matching _{f 0.} Also, thin broken line L ₄ is a resonant frequency to be obtained originally: represents the pass characteristics in the case of applying an alternating current to the coil component (not shown) at the frequency f ₁ with slightly offset relative to f _0.

As shown in FIG. 5, the difference between the Q value of the peak of the solid line L ₁ : T ₁₀ and the Q value of the broken line L ₂ : T ₁₁ : ΔT ₁ can be expressed as ΔT ₁ = T ₁₀ −T ₁₁ .
Further, the difference between the Q value of the peak of the solid line L ₃ : T ₂₀ and the Q value of the broken line L ₄ : T ₂₁ : ΔT ₂ can be expressed as ΔT ₂ = T ₂₀ −T _21.

Here, as shown in FIG. 5, T ₂₀ > T ₁₀ and ΔT ₂ > ΔT ₁ . That is, the coil component 100 including the short-circuited coil unit 140 has a low Q value when compared with an equivalent coil component (not shown) that does not have an element corresponding to the short-circuited coil unit 140. In addition, the coil component 100 has a small reduction in pass characteristics due to a shift in the resonance frequency. Thus, reducing the Q value and reducing the change width of the pass characteristic at the resonance frequency is referred to as “smoothing”.
When the pass characteristic is “smoothed”, even when an alternating current having a frequency shifted from the required resonance frequency is applied to the coil component 100, the reduction of the pass characteristic remains small. Therefore, the coil component 100 can permit wideband transmission / reception.

<About each component of the coil component 100>
First, each component of the coil component 100 will be described with reference to FIGS. 1 to 3.
FIG. 1 is a perspective view of a coil component 100 according to this embodiment. FIG. 2 is an enlarged view showing the vicinity of the capacitor component 120 mounted on the coil component 100. FIG. 3 is an enlarged view showing the vicinity of the binding portion of the main body coil portion 130 and the short-circuit coil portion 140.

The pair of terminal portions 110 includes a terminal portion 111 and a terminal portion 113. The terminal portion 111 and the terminal portion 113 are conductive members that are electrically connected to an external device (not shown).
The terminal portion 111 and the terminal portion 113 are bent at substantially right angles in the middle, and the respective end portions 112 and 114 protrude from the sides of the base portion 150. The end portion of the main body coil portion 130 (first wire) is entangled with the end portion 112 and the end portion 114 and fixed with a metal brazing material, whereby the terminal portion 111 and the terminal portion 113 are attached to the main body coil portion 130. Conducted. Here, the metal brazing material is typically solder, but other metals may be used.
1, 2, and 3, the application state of the metal brazing material is not shown in order to illustrate the state in which each wire is entangled.

The main body coil part 130 is an element that is a main part of an inductance element in the series resonance circuit of the coil component 100, and includes a first winding part 131 and first path parts 132 and 133.
The first winding part 131 is an inductance element in the main body coil part 130.
The first path part 132 forms a routing path from the first winding part 131 to the terminal part 113. More specifically, the first path portion 132 is pulled out from the distal end side of the first winding portion 131 and is entangled with the end portion 114 via the lower portion of the engaging portion 152 and the periphery of the support column 156.
The first path portion 133 forms a routing path from the first winding portion 131 to the binding portion, and is electrically connected to the terminal portion 111 via the binding portion and the capacitor component 120. More specifically, the first path portion 133 is pulled out from the rear end side of the first winding portion 131, passes through the periphery of the support column 157, is entangled with the tie portion, and is electrically connected to the terminal portion 111. Yes. In the present embodiment, the binding portion is constituted by the lead portion 123 of the capacitor component 120 and the protrusion portion 153 protruding from the side of the base portion 150.

  The first path portions 132 and 133 are routed in a direction substantially along the axial direction of the central axis of the main body coil portion 130 (first winding portion 131). Therefore, the magnetic field generated around the first path portions 132 and 133 is small enough to be ignored as compared with the magnetic field generated in the entire body coil unit 130.

The first wire forming the main body coil portion 130 is a second wire forming a short-circuit coil portion 140 described later, or a third wire 170 entangled with the lead portion 122 and the end portion 112. And the same kind of wire. Each wire includes a conductive wire inside, and the periphery of the wire is covered with an insulating member.
Thereby, when each wire is routed by the automatic winding machine, it can be performed in the same process without exchanging the wire, so that the productivity of the coil component 100 is improved.

The short-circuit coil unit 140 is an element provided for the purpose of canceling out the magnetic field generated in the main body coil unit 130 by mutual induction and reducing the Q value of the coil component 100, and the second winding unit 141 and the second path unit 142. , 143.
The second winding part 141 is an inductance element in the short-circuit coil part 140.
The second path portions 142 and 143 form a routing path from the second winding portion 141 to the binding portion (the lead portion 123 and the protruding portion 153). More specifically, the second path portion 142 is drawn from the second winding portion 141, contacts the end portion of the support column 154, changes the path, and is entangled with the lead portion 123 and the projection portion 153. The second path portion 143 is pulled out from the second winding portion 141, is in contact with the end portion of the support column 155, changes the path, and is entangled with the lead portion 123 and the projection portion 153.

  The second winding portion so that the second wire forming the second winding portion 141 is substantially perpendicular to the axial direction of the central axis of the main body coil portion 130 (first winding portion 131). 141 is formed. That is, the region enclosed by the second winding portion 141 is provided substantially perpendicular to the axial direction of the central axis of the main body coil portion 130. As a result, more magnetic flux lines generated in the main body coil portion 130 are allowed to pass through the region, so that the effect of reducing the Q value can be suitably exhibited.

  As the number of turns of the short-circuit coil unit 140 increases, the Q value reduction effect decreases, and the Q value of the coil component 100 increases. Further, the effect of reducing the Q value increases as the number of turns of the short-circuit coil unit 140 decreases, and the Q value of the coil component 100 decreases.

The coil component 100 includes a binding portion in which a main body coil portion 130 (first wire) and a short-circuit coil portion 140 (second wire) are commonly wound. As described above, in the present embodiment, the binding portion is constituted by the lead portion 123 and the projection portion 153.
The main body coil part 130 includes a first winding part 131 formed by winding a first wire around a central axis. Moreover, the short circuit coil part 140 contains the 2nd winding part 141 formed by winding the 2nd wire.
The 1st winding part 131 and the 2nd winding part 141 are spaced apart from the said binding part, and are connected in the said binding part.

Since each wire rod entangled with the binding portion (lead portion 123 and projection portion 153) described in the previous stage is formed in a spiral shape, when it is energized, it acts as an inductance element and generates a magnetic field. The magnetic field generated here can be a noise factor of the coil component 100.
However, in the coil component 100 of the present embodiment, the first winding part 131 and the second winding part 141 which are main components are provided apart from the binding part, and therefore the influence of the noise factor Is reduced.

On the other hand, the second winding portion 141 is wound around the central axis of the first winding portion 131, and the first winding portion 131 and the second winding portion 141 are in the axial direction of the central axis ( The base portion 150 is spaced apart in the longitudinal direction). That is, the inductance elements that cause mutual induction in the main body coil portion 130 and the short-circuit coil portion 140 are separated from each other. As a result, the Q value reduction effect falls within an appropriate range.
In addition, when using the coil component 100 as a coil antenna in a keyless entry system, it is preferable that the Q value of the coil component 100 falls within 10 or more and 40 or less.

The number of turns of the main body coil portion 130 (the number of turns of the first winding portion 131) is determined by a desired resonance frequency required for the coil component 100.
Further, the number of turns of the short-circuited coil part 140 (the number of turns of the second winding part 141) is required to “smooth” the pass characteristic by reducing the desired pass characteristic required for the coil component 100, that is, the Q value. Is determined by whether there is.

  According to the verification conducted by the inventors, when the number of turns of the main body coil part 130 is about 100 to 200, the above range when the number of turns of the short-circuited coil part 140 (number of turns of the second winding part 141) is 3 or less. It is known that the Q value falls within the range. Moreover, as shown in FIG. 1 etc., the winding angle of the 2nd winding part 141 is less than 360 degree | times, and the number of turns of the short circuit coil part 140 including the 2nd winding part 141 and the 2nd path | route part 142 is included. It is known that even if the configuration can be regarded as 1, the effect of reducing the Q value is sufficiently exhibited.

  Note that the number of turns of the short-circuit coil unit 140 described in the previous paragraph is suitable for the configuration of the coil component 100 described in the present embodiment, and depending on the number of turns of the main body coil unit 130 and the arrangement of the short-circuit coil unit 140. Different numbers can be taken.

The base portion 150 is fitted with a pair of terminal portions 110, and a first winding portion 131 and a second winding portion 141 are wound around.
In addition, the base portion 150 includes a groove portion 151 formed so as to go around the central axis, and the second winding portion 141 is wound along the groove portion 151.
By providing the groove part 151, the second winding part 141 can be prevented from deviating from a desired position, and the short-circuiting coil part 140 can be prevented from unexpectedly contacting the main body coil part 130 and the terminal part 110.

  The base portion 150 is formed of an insulating material such as resin, and insulates the magnetic core 160 from the first wire or the second wire wound around. Thereby, the main body coil part 130 and the short-circuited coil part 140 are prevented from conducting with the magnetic core 160.

As described above, the main body coil part 130 includes the first path parts 132 and 133 that form a routing path from the first winding part 131 to the terminal part 110.
Further, the second winding part 141 is located between the first winding part 131 and the terminal part 110, and is separated from the first path parts 132 and 133 in the radial direction. That is, the first wire forming the main body coil portion 130 is drawn at a position away from the bottom surface of the groove portion 151.
Thereby, it can prevent that the main body coil part 130 (1st path | route parts 132 and 133) and the 2nd winding part 141 contact unexpectedly.

The base portion 150 includes a pair of terminal portions 110, a first winding portion 131, and a second winding portion 141, and a capacitor component 120 (electronic component) having lead portions 122 and 123 is mounted. ing.
As described above, a part of the lead part 123 is a binding part, and the first wire and the second wire are entangled with the lead part 123.

  More specifically, the base portion 150 has a protruding portion 153 adjacent to the lead portion 123. And the lead part 123 and the projection part 153 are entangled as a binding part between the first wire and the second wire, and are fixed with a metal brazing material.

About the common binding part which entangles the main body coil part 130 (first wire) and the short-circuiting coil part 140 (second wire), by configuring the lead part 123 and the projecting part 153, the binding part It is not necessary to separately mount components to be provided on the base portion 150, and the number of components is reduced. Therefore, the productivity of the coil component 100 is improved.
In addition, since the lead portion 123 that is easily damaged in shape is entangled with each wire together with the protruding portion 153 and further fixed with a metal brazing material, the lead portion 123 is not easily damaged.
Further, by tying the periphery with each wire, the metal brazing material is sufficiently distributed between the lead portion 123 and the protrusion 153, and the stability of fixation at the tie portion is increased.

The capacitor component 120 is an electronic component that mainly functions as a capacitor. Capacitor component 120 includes an element portion 121, a lead portion 122, and a lead portion 123.
The element unit 121 is a main element provided in order to realize a target function of the electronic component. Here, the lead parts 122 and 123 are elements provided to electrically connect the element part 121 to other members.
In the present embodiment, the element part 121 is electrically connected to the terminal part 111 via the lead part 122 and is electrically connected to the main body coil part 130 and the short-circuited coil part 140 via the lead part 123.

The base part 150 has a hooking part 152 that hooks and fixes the element part 121. Furthermore, the main body coil part 130 includes a first path part 132 that forms a routing path from the first winding part 131 to the terminal part 113, and at least a part of the first path part 132 is engaged. It is held between the part 152 and the element part 121.
By fixing the element part 121 (capacitor component 120) and the first path part 132 with the engaging part 152, the lead parts 122 and 123 and each wire rod can be connected with each other in a stable manner (binding process and metal brazing material application process). Can be done.

More specifically, the engaging portion 152 has a claw portion, and the claw portion engages with the element portion 121 to prevent the capacitor component 120 from coming off.
The engaging portion 152 has a slope on the tip side where the claw portion is provided, and the capacitor component 120 can be inserted into a desired position by pushing the capacitor component 120 so as to abut against the slope.

Capacitor component 120 is connected to terminal portion 110, main body coil portion 130 and short-circuited coil portion 140 with the following configuration.
First, the capacitor component 120 (electronic component) is connected to a lead portion 123 (one lead portion) connected to the first wire and the second wire, and a terminal portion 111 (one terminal portion). Lead part 122 (another lead part).
The lead part 123 and the lead part 122 protrude in the same direction as the protruding direction of the protruding part 153 from one surface of the base part 150 where the protruding part 153 is provided.
A part (end portion 112) of the terminal portion 111 is adjacent to the lead portion 122, protrudes in the same direction as the protruding direction from one surface, and is entangled by the third wire 170 together with the lead portion 122. It is fixed with metal brazing material.
A part of the terminal portion 113 (the other terminal portion) protrudes from the one surface in the same direction as the protruding direction, and is entangled with the first wire and fixed with a metal brazing material.

According to the configuration of the preceding paragraph, (i) metal brazing material application to the lead portion 123, the first wire, the second wire, and the protrusion 153, (ii) to the lead portion 122, the third wire 170, and the terminal portion 111. The metal brazing material application and (iii) the first wire material and the metal brazing material application to the terminal portion 113 can be performed in the same process. Specifically, each part listed in (i), (ii), and (iii) protrudes from the side surface of the base part 150 by the same length, and these parts are immersed in a melting bath of a metal brazing material once. A metal brazing material can be applied.
Thereby, the manufacturing process of the coil component 100 is shortened, and the productivity of the coil component 100 is improved.

Note that the coil component 100 is an electronic circuit having the following characteristics when attention is paid to each portion protruding from the side surface of the base portion 150 described in the previous paragraph.
That is, the coil component 100 includes the capacitor component 120 (electronic component) having the lead portions 122 and 123 and the protrusion on which the capacitor component 120 is mounted and provided in the vicinity of the lead portions 122 and 123. And a base portion 150 having a portion. The lead part 123 and the projecting part are entangled with a winding, and the lead parts 122 and 123, the protrusion and the winding are fixed with a metal brazing material.
Here, the projecting portion specifically refers to the end portion 112 of the terminal portion 111 with respect to the lead portion 122, and the protrusion portion 153 with respect to the lead portion 123.

  As described in the previous stage, the lead portions 122 and 123 are arranged so that the end portions 112 and the protrusions 153 are attached, and are wound with windings and fixed with a metal brazing material. Is less likely to break. In addition, the metal brazing material is sufficiently distributed in the gaps between each other, and the stability of fixation is increased.

The magnetic core 160 is inserted inside the base portion 150 and amplifies the magnetic field generated in the main body coil portion 130 and the short-circuit coil portion 140.
The material of the magnetic core 160 is made of ceramics containing iron oxide as a main component (ferrite core), made of amorphous alloy (almofa core), compression molded metal powder (dust core), plural And a laminated structure obtained by electrically insulating the steel sheet (laminated core).

<About the manufacturing method of the coil component 100>
The coil component 100 of this embodiment is manufactured by the following manufacturing method.
First, a base unit 150 including a pair of terminal units 110 is prepared.
One end of the first wire rod is connected to one terminal portion (for example, the terminal portion 111), and the first wire rod is wound around a predetermined central axis (base portion 150 in the present embodiment). The part 131 is formed, and the other end of the first wire is connected to another terminal part (for example, the terminal part 113) (main body coil forming step).
And the 2nd winding part 141 is formed by winding at least a part of section between two points contained in the 2nd wire so that the magnetic flux generated in the 1st winding part 131 may intersect and deviate. Short-circuit between two points (short-circuit coil formation process).

More specifically, in the main body coil forming step, the first wire is drawn and tied up to the binding portions (the lead portion 123 and the protruding portion 153) that are separated from the first winding portion 131.
In the short-circuiting coil forming step, the second wire is drawn and tied up to the binding part that is separated from the second winding part 141.
The first winding part 131 and the second winding part 141 are connected by executing the main body coil forming step and the short-circuit coil forming step.

  In the main body coil formation step, when the other end of the first wire is connected to the terminal portion 113, the connection is made via the capacitor component 120 in this embodiment. Accordingly, the other end of the first wire rod is connected by being entangled with the lead portion 123 and the protruding portion 153, and the lead portion 122 and the end portion 112 are entangled and connected by the third wire rod 170.

Portions where the wound first wire rod, second wire rod, and third wire rod 170 are entangled (in this embodiment, (i) end portion 114 of terminal portion 113, (ii) end portion 112 of terminal portion 111. The metal brazing material is applied to the lead portions 122 of the capacitor component 120 and (iii) the lead portions 123 and the protrusions 153 of the capacitor component 120 (metal brazing material application step).
After the applied metal brazing material is fixed, the magnetic core 160 is inserted into the base portion 150 to complete (magnetic core insertion step).

  In the description of the method for manufacturing the coil component 100, the description is made using a plurality of steps described in order, but the description order does not limit the order or timing of performing the plurality of steps. For this reason, when carrying out the manufacturing method of the present invention, the order of the plurality of steps can be changed within a range that does not hinder the contents, and some or all of the execution timings of the plurality of steps overlap each other. It may be.

Although the present invention has been described so far with the embodiment, these are only examples. In addition, the various components of the present invention do not have to be independent of each other, a plurality of components are configured as a single component, and one component is divided into a plurality of components. It is permitted that a certain component is a part of another component, a part of a certain component overlaps a part of another component, and the like.
Moreover, the various components described above are not necessarily essential components, and may be omitted to the extent that the effects of the present invention are not impaired, or may be replaced with other components that function or function in an equivalent manner.
In the following, modifications of the present invention will be specifically described.

<First modification>
FIG. 6 is a perspective view of the coil component 100 of the first modification. The present modification is different from the above embodiment in that the plate-like member 180 is provided between the first winding part 131 and the base part 150. More specifically, the plate member 180 is mounted on the surface of the base portion 150 on which the capacitor component 120 is mounted. Further, the plate-like member 180 is wound by the first winding part 131 and is locked and fixed to the claw portions provided on the support column 157 and the support column 158.

FIG. 7 is a schematic cross-sectional view of the coil component 100 in the vicinity of the first winding part 131. The cross section shown in FIG. 7 is a schematic diagram and does not define the dimensional ratio of each component. Therefore, the dimensions of each component can be changed as appropriate.
The plate-like member 180 in this modification includes four layers. Specifically, the plate-shaped member 180 is made of an insulating substrate 183, a conductive layer 182 and a conductive layer 184 formed by plating both surfaces of the insulating substrate 183 with metal, and one side of the conductive layer 182 as a resin. And an insulating layer 181 formed by coating.
Note that examples of the insulating resin forming the insulating substrate 183 include polychlorinated biphenyl and polyimide. Specific examples of the resin forming the insulating layer 181 include an epoxy resin.
As a material for forming the conductive layer 182 and the conductive layer 184, any material may be adopted as long as it is a substance that generates an eddy current when a magnetic field is generated in the main body coil portion 130. Note that the conductive layer 182 and the conductive layer 184 are preferably formed of copper, aluminum, or the like, which is a nonmagnetic metal, and particularly preferably formed of copper. This is because the conductive layer 182 and the conductive layer 184 formed of a nonmagnetic metal do not reinforce the magnetic field generated in the main body coil unit 130, and thus affect the magnetic characteristics of the coil component 100 even when used with the magnetic core 160. Because there is no. In addition, the conductive layer 182 and the conductive layer 184 formed of a nonmagnetic metal are not magnetized even when the coil component 100 is repeatedly energized, so that the magnetic characteristics of the coil component 100 are not affected over time.
The insulating substrate 183 has a thickness larger than that of the conductive layer 182 and the conductive layer 184, and has higher bending rigidity than that of the conductive layer 182 and the conductive layer 184.

As shown in FIG. 6 and FIG. 7, the magnetic core 160 is inserted through the inside of the main body coil part 130 (first winding part 131). In addition, the conductive layer 182 and the conductive layer 184 are provided between the magnetic core 160 and the main body coil portion 130.
In addition, a plurality of conductive layers 182 and 184 are provided between the magnetic core 160 and the body coil unit 130, and an insulating substrate 183 is provided between one conductive layer 182 and another conductive layer 184. Is provided.
A base portion 150 formed of an insulating material is provided between the conductive layer 184 and the magnetic core 160.

As described above, the base portion 150 includes a plurality of support columns 157 and 158 having claw portions. The plurality of support columns 157 and 158 are arranged to face each other in the width direction of the plate-like member 180, and one surface of the claw portion is inclined in an inward direction. Further, the plate-like member 180 is accommodated between the lower surface of the claw portion and the upper surface of the base portion 150.
More specifically, when the plate-like member 180 is inserted, one surface of the claw portion that comes into contact with the plate-like member 180 is arranged so that the insertion pressure by the plate-like member 180 acts on the support columns 157 and 158 outside the base portion 150. Inclined. Due to the force acting on the outside, the support columns 157 and the support columns 158 having a certain elasticity are opened to tilt outward without being damaged. The plate-like member 180 is pushed into the gap generated by this, and fits between the lower surface of the claw portion and the upper surface of the base portion 150, and is locked by the claw portion.
In this modification, the plate member 180 is held by the above-described locking by the claw portion and the winding force by the first winding portion 131. However, the plate member 180 and the base portion 150 are further described. It may be an aspect in which an adhesive is applied between them to adhere to each other.

In the previous stage, it has been described that the plate-like member 180 is held between the support columns 157 and 158 to be fitted into the claw portion, and in order to realize this, the plate-like member 180 is bent higher than the support columns 157 and 158. It is preferable to have rigidity.
As described above, the insulating substrate 183 has higher bending rigidity than the conductive layers 182 and 184, and the plate-like member 180 is formed using the insulating substrate 183 as a substrate. The method can be taken.

When the terminal portion 111 and the terminal portion 113 are energized and a magnetic field is generated in the main body coil portion 130 (first winding portion 131), eddy currents are generated in the conductive layer 182 and the conductive layer 184, and the coil due to loss due to the eddy current is generated. The Q value of the component 100 is reduced.
That is, the effect of reducing the Q value by the short-circuit coil unit 140 and the effect of reducing the Q value by the conductive layer 182 and the conductive layer 184 are combined, and the coil component 100 as a whole can have a greater effect of reduction.
In addition, since the conductive layer 182 and the conductive layer 184 are provided on both surfaces of the insulating substrate 183, a larger reduction effect can be achieved than when the conductive layer 182 or the conductive layer 184 is formed on one surface of the insulating substrate 183.

  In addition, although the plate-shaped member 180 in this modification was demonstrated in the aspect provided with a some conductive layer, a single conductive layer may be sufficient. At this time, the side of the plate-like member 180 on which the conductive layer is provided is closer to the base part 150 (magnetic core 160) side than the side of the main body coil part 130 (first winding part 131). The effect of reducing the Q value is increased. That is, the Q value of the entire coil component 100 is reduced.

By utilizing the phenomenon described in the previous stage, in the main body coil forming step in the manufacturing method of the coil component 100, (i) a plate-like member provided with conductive layers 182 and 184 on both sides of the printed board on which the insulating board 183 is formed. 180, (ii) a plate-like member 180 in which a conductive layer 184 is provided only on the base portion 150 side of the printed board on which the insulating board 183 is formed, and (iii) a main body coil of the printed board on which the insulating board 183 is formed. By selecting any one of the three patterns of the plate-like member 180 provided with the conductive layer 182 only on the part 130 side and sandwiching it between the main body coil part 130 and the base part 150, the Q value of the coil component 100 is determined. Adjustments can be made.
At this time, the Q value of the coil component 100 is in the order of (i) <(ii) <(iii).

In the previous stage, the manufacturing method in which the Q value is adjusted by selecting any of the three patterns of the plate-like member 180 is described. However, the plate-like member 180 is changed by changing the thickness of the conductive layer 182 or the conductive layer 184. Since the magnitude of the eddy current generated in the coil changes, the Q value of the coil component 100 can be varied.
Note that the Q value of the coil component 100 decreases as the thickness of the conductive layers 182 and 184 increases.

Furthermore, since the insulating layer 181 is provided on the contact surface between the first wire forming the main body coil portion 130 and the plate-like member 180, conduction between the main body coil portion 130 and the conductive layer 182 can be prevented. .
In addition, although the insulating layer 181 of this modification was demonstrated in the case of the coating formation by resin, it can also be formed by methods, such as sticking of an insulating tape.

To summarize what has been described above, the plate member 180 according to this modification can take the following modes.
For example, the plate-like member 180 may be a single conductive layer. That is, the insulating substrate 183 is not necessarily an essential component. At this time, the plate-like member 180 may include one or a plurality of insulating layers formed by coating one surface or both surfaces of the conductive layer with an insulating resin.
Alternatively, the plate-like member 180 may include one or a plurality of conductive layers formed by plating one surface or both surfaces of the insulating substrate 183 with a metal. At this time, the plate-like member 180 includes one or a plurality of insulating layers formed by coating the outer surface of one or both conductive layers (the surface on the opposite side in contact with the insulating substrate 183) with an insulating resin. But you can.
That is, the plate-like member 180 of the present modification can take any one of a single layer structure to a five layer structure.

<Second modification>
FIG. 8 is an enlarged view showing the vicinity of the capacitor component 120 in the coil component 100 of the second modified example. FIG. 9 is an enlarged view showing the binding portions of the main body coil portion 130 and the short-circuit coil portion 140 in the coil component 100 of the second modified example.
The coil component 100 according to the present modification is different from the above-described embodiment in that the short-circuit coil unit 140 is substantially parallel to the central axis of the first winding unit 131. In addition, the groove 151a and the groove 151b, which are the routing paths of the second wire forming the short-circuiting coil 140, are provided on the flanges 191 and 192 that protrude from the base 150, respectively. Is different from the above embodiment.

  The flange portion 191 is a bowl-shaped portion provided at the distal end portion of the base portion 150. The flange portion 192 is a bowl-shaped portion provided between the mounting position of the capacitor component 120 of the base portion 150 and the winding position of the first winding portion 131.

  In this modification, although the example which provides the groove part 151a and the groove part 151b in order to set the routing route of the 2nd wire to a predetermined position was demonstrated, it is not restricted to this. For example, a short-circuiting coil unit 140 (second winding unit 141) may be configured by providing a support (not shown) for routing the second wire, and winding the second wire around them.

In this modification, the short-circuit coil unit 140 is formed in a substantially rectangular shape so as to surround the periphery of the capacitor component 120. The arrangement and shape of the short-circuit coil unit 140 shown here are merely examples, and other modes can be adopted.
For example, as the shape of the short-circuit coil unit 140, any shape that functions as an electromagnetic coil, such as a circle, a C shape, a spiral, a spiral, or a polygon, can be adopted. That is, the number of windings of the second winding unit 141 may be one or plural. Moreover, the winding angle of the 2nd winding part 141 does not need to be less than 360 degree | times.

Further, the arrangement of the short-circuit coil unit 140 may take the following aspects. That is, the area defined by the second winding part 141 may overlap at least one of the magnetic core 160 or the first winding part 131 inserted inside the main body coil part 130.
In addition, a part of the region partitioned by the second winding part 141 may be detached from the magnetic core 160 in at least one of the width direction and the longitudinal direction of the magnetic core 160.
Alternatively, the entire region defined by the second winding part 141 may overlap with the magnetic core 160.
Note that the second winding portion 141 in the present modification partly overlaps the magnetic core 160 and is wider than the magnetic core 160 in the width direction and partly removed.

Here, “overlapping (overlapping)” the magnetic core 160 means that at least a part of the magnetic core 160 is opposed to the magnetic core 160 as viewed from the region partitioned by the second winding portion 141. .
Further, “disengaged from the magnetic core 160” means that the magnetic core 160 is not opposed to the magnetic core 160 as viewed from at least a part of the region defined by the second winding portion 141.

However, the region defined by the second winding portion 141 needs to be biased to one side with respect to the center of the central axis of the first winding portion 131. That is, the second winding part 141 is disposed so as to be asymmetric with respect to the center of the first winding part 131.
Temporarily, when the 2nd winding part 141 is symmetrically arrange | positioned on the basis of the center of the longitudinal direction of the 1st winding part 131, the magnetic flux direction which passes to the area | region divided by the 2nd winding part 141 is based on the said reference | standard. The opposite direction at the border. Accordingly, mutual induction caused by magnetic fluxes in different directions works to cancel each other, the magnetic field generated in the second winding part 141 is reduced, and the effect of reducing the Q value of the coil component 100 is also reduced.
Accordingly, by arranging the second winding portion 141 asymmetrically with respect to the reference as in the present modification, it is possible to suitably achieve the Q value reduction effect.

The following is a summary of what was said in the previous section. That is, the second wire forming the second winding part 141 is wound so as to be substantially parallel to the axial direction of the central axis of the main body coil part 130 (first winding part 131). Yes. Further, the region defined by the second winding portion 141 is biased to one axial direction with the center of the central axis of the first winding portion 131 as a reference.
The Q value of the coil component 100 can also be reduced by forming the short-circuit coil unit 140 in the arrangement described above. However, since the arrangement of the second winding part 141 in the embodiment described above passes more magnetic flux generated in the first winding part 131, it is possible to achieve a Q value reduction effect more suitably. .

In any aspect of the arrangement of the short-circuit coil unit 140 described above, the first winding unit 131 and the second winding unit 141 are preferably separated in the radial direction of the first winding unit 131. This is to prevent unexpected contact between the first winding part 131 and the second winding part 141.
In addition, the 1st winding part 131 and the 2nd winding part 141 in this modification are spaced apart from both the radial direction of the 1st winding part 131, and the axial direction of the 1st winding part 131.

In addition, the second wire forming the second winding portion 141 includes other wire rods and each binding portion, that is, the first wire rod forming the main body coil portion 130, the third wire rod 170, and the end. It is preferably not in contact with the portion 114, the end portion 112, the lead portion 122, the projection portion 153, and the lead portion 123. This is for preventing the coating of the second wire from being damaged by contact and causing an unexpected short circuit.
In addition, although the projection part 153 and the lead part 123 were demonstrated in this modification as an example used as a common binding part of the short circuit coil part 140 and the main body coil part 130, it is not restricted to this. That is, you may provide separately the binding part of the short circuit coil part 140 and the main body coil part 130. FIG.

<Third modification>
FIG. 10 is an enlarged view showing the vicinity of the capacitor component 120 in the coil component 100 of the third modification. FIG. 11 is an enlarged view showing the binding portions of the main body coil portion 130 and the short-circuit coil portion 140 in the coil component 100 of the third modified example.

The coil component 100 of this modification is wound so that the second wire forming the second winding portion 141 is substantially parallel to the axial direction of the central axis of the first winding portion 131. The second winding portion 141 is common to the second modification in that the winding center position of the second winding portion 141 is biased to one axial direction from the center of the central axis of the first winding portion 131.
However, in the second modification, the short-circuiting coil part 140 is substantially parallel to the surface of the base part 150 on which the capacitor component 120 is mounted, whereas in the third modification, the short-circuiting coil part 140 has each The modifications are different from each other in that they are substantially parallel to the side surface of the base portion 150 provided with the binding portion.

  Further, the second modified example is different in that a plurality of groove portions 151b and a groove portion 151d are provided in the flange portion 191 and a plurality of groove portions 151a and a groove portion 151c are provided in the flange portion 192. In addition, all of the groove part 151a, the groove part 151b, the groove part 151c, and the groove part 151d are provided in order to determine the routing route of the 2nd wire which forms the short circuiting coil part 140.

In the present modification, since the second winding portion 141 is wound in the vicinity of the lead portion 123 and the projection portion 153 that tie the main body coil portion 130 and the short-circuit coil portion 140, the second path portion 142 and It differs from other embodiment and a modification about the point by which the 2nd path | route part 143 is abbreviate | omitted.
Moreover, in this modification, since the 2nd path | route part 142 and the 2nd path | route part 143 are omitted, the support | pillar 154 and support | pillar 155 provided in order to change the path | route are also omitted.

  Even if the short-circuited coil portion 140 is formed as in this modification, the Q value of the coil component 100 can be reduced. However, the effect of reducing the Q value is smaller than the arrangement of the short-circuit coil unit 140 in the above embodiment.

<Reference form>
FIG. 12 is a perspective view of the coil component 100 of the reference embodiment. The present modification is different from the coil component 100 of the first modification in that the short-circuit coil unit 140 is not provided. Further, since the short-circuit coil unit 140 is omitted, the support column 154 and the support column 155 provided for changing the path are also omitted.
Furthermore, the lead part 123 and the protrusion part 153 are only entangled with one end of the main body coil part 130.

  The configuration described in the previous section is organized as follows. That is, the coil component 100 includes a pair of terminal portions 110 (111, 113), a magnetic core 160, a main body coil portion 130, and conductive layers 182 and 184. The main body coil portion 130 is formed of a first wire rod, and is electrically connected to terminal portions 111 and 113 having different end portions, and is magnetic in at least a part of a section between one end portion 111 and the other end portion 113. It is wound around the body core 160. The conductive layers 182 and 184 are provided between the magnetic core 160 and the main body coil unit 130.

  Even in the configuration in which the short-circuit coil portion 140 is omitted as in the coil component 100 of the present embodiment, the plate member 180 is provided, so that the effect of reducing the Q value of the coil component 100 can be achieved.

Except for the configuration described above, the present embodiment has the same configuration as that of the first modification.
For example, the coil component 100 according to the present embodiment includes a plate-like member 180 including conductive layers 182 and 184 and an insulating substrate 183 on which the conductive layers 182 and 184 are formed. A plate-like member 180 is provided between the magnetic core 160 and the main body coil portion 130.
Since the conductive layers 182 and 184 are formed on the surface of the insulating substrate 183, a desired thickness dimension can be easily and uniformly realized.

In addition, the coil component 100 includes a base portion 150 in which a main body coil portion 130 is wound around and a magnetic core 160 is inserted therein, and the plate-like member 180 includes the base portion 150 and the main body coil portion 130. Between.
Since the plate-like member 180 is arranged outside the base portion 150, not on the side where the magnetic core 160 is inserted (inside the base portion 150), the fitting accuracy between the base portion 150 and the magnetic core 160 is improved. Get better. In addition, since the plate-like member 180 is provided outside the base portion 150, it is easy to dissipate heat generated by eddy current loss.

The base portion 150 includes a plurality of support columns 157 and 158 having claw portions. The plurality of support columns 157 and 158 are arranged to face each other in the width direction of the plate-like member 180, and one surface of the claw portion is inclined in an inward direction. Further, the plate-like member 180 is accommodated between the lower surface of the claw portion and the upper surface of the base portion 150.
By adopting such a method, the plate-like member 180 can be attached to the base portion 150 and held by an easy operation.

  The plate member 180 includes a plurality of conductive layers 182 and 184 formed on both surfaces of the insulating substrate 183. Since the eddy current is a phenomenon caused by the change of the magnetic flux passing through the metal flat plate, the coil component 100 can exhibit a larger Q value reduction effect by including the plurality of conductive layers 182 and 184.

An insulating layer 181 is formed between the conductive layers 182 and 184 and at least one of the main body coil portion 130 or the magnetic core 160. Here, an insulating layer 181 is formed between the conductive layer 182 and the main body coil portion 130. Thereby, electrical connection between the main body coil portion 130 and the conductive layer 182 can be prevented.
Although not shown here, another insulating layer (not shown) may be provided between the conductive layer 184 and the magnetic core 160. At this time, conduction between the conductive layer 184 and the magnetic core 160 can be prevented.

In addition, although description using drawing is omitted, for example, in the above-described embodiment, the base portion 150 has been described as having a single groove portion 151, but may include a plurality of groove portions 151. That is, the base portion 150 includes a plurality of groove portions 151 that are separated from each other in the axial direction of the central axis, and the second winding portion 141 is wound around one of the plurality of groove portions 151. Also good.
Thereby, the Q value of the coil component 100 can be adjusted by selecting the groove part 151 around which the second winding part 141 is wound. More specifically, when the second winding portion 141 is formed by winding the second wire around the groove portion 151 on the side close to the first winding portion 131, the effect of reducing the Q value of the coil component 100 is large. Become. On the other hand, when the second wire 141 is formed by winding the second wire in the groove 151 far from the first coil 131, the effect of reducing the Q value of the coil component 100 is reduced.

In the first modification and the reference embodiment, the plate-like member 180 is described as being provided so as to be sandwiched between the base portion 150 and the first winding portion 131. However, the plate-like member 180 has the first winding portion. The arrangement of the plate-like member 180 is not limited to this as long as it is provided between 131 and the magnetic core 160.
For example, an accommodation portion (not shown) that can accommodate the plate-like member 180 may be provided on the inner peripheral surface of the base portion 150, and the plate-like member 180 may be accommodated in the accommodation portion. In this case, it is preferable that insertion is possible from an opening provided at the end of the base portion 150.

The above embodiments and modifications include the following technical ideas.
(1) A pair of terminal portions and a first wire rod are formed, and the end portions are electrically connected to the different terminal portions, and at least in a section between the one end portion and the other end portion. A main body coil portion wound around a predetermined central axis and a second wire, and the two points included in the second wire are short-circuited, and at least a part between the two points And a short-circuited coil part disposed so that the magnetic flux generated in the main body coil part is biased and intersected.
(2) The first wire rod and the second wire rod are provided with a binding portion in which the first wire rod is wound in common, and the main body coil portion is formed by winding the first wire rod around the central axis. The first winding part is formed, and the short-circuiting coil part includes a second winding part formed by winding the second wire, and the first winding part. The coil component according to (1), wherein the turning portion and the second winding portion are separated from the binding portion and are electrically connected to each other at the binding portion.
(3) The second winding portion is wound around the central axis, and the first winding portion and the second winding portion are separated in the axial direction of the central axis ( The coil component as described in 2).
(4) The pair of terminal portions is mounted, and includes a base portion around which the first winding portion and the second winding portion are wound, and the base portion further includes the central shaft. The coil component according to (3), including a groove portion formed so as to circulate around the coil portion, wherein the second winding portion is wound along the groove portion.
(5) The base portion includes a plurality of the groove portions that are separated from each other in the axial direction of the central axis, and the second winding portion is wound around one of the plurality of groove portions. The coil component according to (4).
(6) The main body coil part includes a first path part that forms a routing path from the first winding part to the terminal part, and the second winding part includes the first winding part. The coil component according to any one of (3) to (5), wherein the coil component is located between the first portion and the terminal portion, and is radially spaced from the first path portion.
(7) The second wire forming the second winding part is wound so as to be substantially parallel to the axial direction of the central axis, and is partitioned by the second winding part. The coil component according to (2), in which the region that is made is biased to one side in the axial direction with respect to the center of the central axis of the first winding portion.
(8) The coil component according to (7), wherein the first winding part and the second winding part are separated from each other in a radial direction of the first winding part.
(9) The coil component according to any one of (2) to (8), wherein the number of turns of the second winding part is 3 or less.
(10) The coil component according to (9), wherein the winding angle of the second winding part is less than 360 degrees.
(11) The pair of terminal portions are mounted, the first winding portion is wound around, and includes a base portion on which an electronic component having a lead portion is mounted, the lead A part of the part is the binding part, and the first wire and the second wire are entangled with the lead part, according to any one of (2) to (10) Coil parts.
(12) The base portion has a protrusion adjacent to the lead portion, and the lead portion and the protrusion are the first wire and the second wire as the binding portion. The coil component according to (11), wherein the coil component is entangled with each other and fixed with a metal brazing material.
(13) The electronic component includes one lead portion connected to the first wire and the second wire, and another lead portion connected to the one terminal portion. The one lead portion and the other lead portion protrude in the same direction as the protruding direction of the protruding portion from one surface of the base portion on which the protruding portion is provided. A part of the terminal portion is adjacent to the other lead portion, protrudes in the same direction as the protruding direction from the one surface, and is entangled with a third wire together with the other lead portion. A part of the other terminal portion protrudes from the one surface in the same direction as the projecting direction, and is entangled by the first wire material to form the metal brazing material. The coil component according to (12), which is fixed.
(14) The electronic component has an element part to which the lead part is connected, and the base part has an engaging part that engages and fixes the element part (11). To (13) The coil component according to any one of (13).
(15) The main body coil part includes a first path part that forms a routing path from the first winding part to the terminal part, and at least a part of the first path part is the hooking part. The coil component according to (14), which is sandwiched and held between a portion and the element portion.
(16) The coil component according to any one of (1) to (15), wherein the first wire and the second wire are the same type of wire.
(17) The magnetic core inserted inside the main body coil portion, and the conductive layer provided between the magnetic core and the main body coil portion are provided (1) to (16 The coil component according to any one of (1).
(18) A plurality of the conductive layers includes a plate-like member laminated via an insulating layer, and the plate-like member is provided between the magnetic core and the main body coil portion. The coil component according to (17).
(19) A method of manufacturing a coil component including a pair of terminal portions, wherein one end of a first wire is conducted to one terminal portion, and the first wire is wound around a predetermined central axis. A main body coil forming step of forming a first winding portion and electrically connecting the other end of the first wire to the other terminal portion, and a magnetic flux generated in the first winding portion cross each other in an eccentric manner. A method of manufacturing a coil component comprising: a step of forming a second winding portion by winding at least a part of a section between two points included in the second wire, and short-circuiting the two points. .
(20) In the main body coil forming step, the first wire is drawn and tied up to a binding portion that is separated from the first winding portion, and in the short-circuit coil forming step, from the second winding portion. The second wire is routed to the entangled portions that are separated from each other, and the first winding portion and the second winding portion are obtained by executing the main body coil forming step and the short-circuit coil forming step. The manufacturing method of the coil component as described in (19) which makes it conduct.

Furthermore, said embodiment and modification include the following technical thoughts.
(A) an electronic component having a lead portion, and a base portion on which the electronic component is mounted and having a protruding portion provided in the vicinity of the lead portion, An electronic circuit in which a lead portion and the protruding portion are entangled with a winding, and the lead portion, the protruding portion, and the winding are fixed with a metal brazing material.
(B) The coil component according to (2), wherein the second wire forming the second winding portion is substantially perpendicular to the axial direction of the central axis of the main body coil portion.
(C) formed of a pair of terminal portions, a magnetic core, and a first wire, the end portions being electrically connected to different terminal portions, and at least between one end portion and the other end portion; A coil component comprising: a main body coil portion wound around the magnetic core in a part of the section; and a conductive layer provided between the magnetic core and the main body coil portion.
(D) a plate-like member including the conductive layer and an insulating substrate having the conductive layer formed on a surface thereof, wherein the plate-like member is interposed between the magnetic core and the main body coil portion. The coil component as set forth in (c).
(E) The main body coil portion is wound around and includes a base portion into which the magnetic core is inserted, and the plate-like member is provided between the base portion and the main body coil portion. The coil component according to (d).
(F) The base portion includes a plurality of struts having claw portions, and the plurality of struts are arranged to face each other in the width direction of the plate-like member, and one surface of the claw portion is an inner side. The coil component according to (e), which is inclined in a direction, and is further accommodated between the lower surface of the claw portion and the upper surface of the base portion.
(G) The coil component according to any one of (d) to (f), wherein the plate-like member includes a plurality of the conductive layers formed on both surfaces of the insulating substrate.
(H) The coil component according to any one of (c) to (g), wherein an insulating layer is formed between the conductive layer and at least one of the main body coil portion or the magnetic core.
(I) It has a magnetic core inserted inside the main body coil portion, and the region defined by the second winding portion is at least the magnetic core or the first winding portion. The coil component according to (7) or (8), which overlaps one side.
(J) The coil component according to (i), wherein a part of the region is separated from the magnetic core in at least one of a width direction and a longitudinal direction of the magnetic core.
(K) The coil component according to (i), wherein the entire region overlaps with the magnetic core.

100 Coil parts 110, 111, 113 Terminal part 112, 114 End part 120 Capacitor part 121 Element part 122, 123 Lead part 130 Main body coil part 131 First winding part 132, 133 First path part 140 Short-circuit coil part 141 Second Winding portion 142, 143 Second path portion 150 Base portion 151, 151a, 151b, 151c, 151d Groove portion 152 Engagement portion 153 Protrusion portion 154, 155, 156, 157, 158 Post 160 Magnetic body core 170 Third wire rod 180 Plate Member 181 Insulating layer 183 Insulating substrate 182, 184 Conductive layer 191, 192 Flange

Claims (20)

A pair of terminal portions;
Winding around a predetermined central axis in at least a part of the section between one end and the other end formed by the first wire rod, the end portions being electrically connected to different terminal portions. The main body coil portion,
It is formed by the second wire, the two points included in the second wire are short-circuited, wound at least in a section between the two points, and generated in the main body coil portion And a short-circuited coil portion arranged so that the magnetic fluxes are biased and intersect with each other. The first wire and the second wire are provided with a binding portion in which the common wire is wound in common,
The main body coil portion includes a first winding portion formed by winding the first wire around the central axis,
The short circuit coil portion includes a second winding portion formed by winding the second wire,
The coil component according to claim 1, wherein the first winding part and the second winding part are separated from the binding part and are conductive at the binding part. The second winding part is wound around the central axis;
The coil component according to claim 2, wherein the first winding portion and the second winding portion are spaced apart from each other in the axial direction of the central axis. The pair of terminal portions is mounted, and includes a base portion around which the first winding portion and the second winding portion are wound,
The base part includes a groove part formed so as to go around the central axis.
The coil component according to claim 3, wherein the second winding part is wound along the groove part. The base portion includes a plurality of the groove portions that are separated from each other in the axial direction of the central axis,
The coil component according to claim 4, wherein the second winding portion is wound around any of the plurality of groove portions. The main body coil part includes a first path part that forms a routing path from the first winding part to the terminal part,
The said 2nd winding part is located between the said 1st winding part and the said terminal part, and is spaced apart from said 1st path | route part in radial direction, Any one of Claim 3 to 5 The coil component according to one item. The second wire forming the second winding portion is wound so as to be substantially parallel to the axial direction of the central axis,
3. The coil component according to claim 2, wherein a region defined by the second winding part is biased to one of the axial directions with respect to a center of the central axis of the first winding part.   The coil component according to claim 7, wherein the first winding part and the second winding part are separated from each other in a radial direction of the first winding part.   The coil component according to any one of claims 2 to 8, wherein the number of windings of the second winding part is 3 or less.   The coil component according to claim 9, wherein a winding angle of the second winding part is less than 360 degrees. The pair of terminal portions are mounted, the first winding portion is wound around, and includes a base portion on which an electronic component having a lead portion is mounted,
The part of the lead part is the binding part, and the first wire and the second wire are bound to the lead part. Coil parts. The base portion has a protrusion adjacent to the lead portion,
The coil according to claim 11, wherein the lead portion and the projection portion are entangled as the binding portion between the first wire and the second wire, and are fixed with a metal brazing material. parts. The electronic component includes the one lead portion connected to the first wire and the second wire, and the other lead portion connected to the one terminal portion. ,
The one lead portion and the other lead portion protrude from the one surface of the base portion where the protruding portion is provided in the same direction as the protruding direction of the protruding portion,
A portion of the one terminal portion is adjacent to the other lead portion, protrudes in the same direction as the protruding direction from the one surface, and is entangled together with the other lead portion by a third wire. And fixed with the metal brazing material,
The part of the other terminal portion protrudes from the one surface in the same direction as the protruding direction, and is entangled by the first wire and fixed by the metal brazing material. Coil parts. The electronic component has an element part to which the lead part is connected,
The coil part according to any one of claims 11 to 13, wherein the base portion includes a hooking portion that hooks and fixes the element portion. The main body coil part includes a first path part that forms a routing path from the first winding part to the terminal part,
The coil component according to claim 14, wherein at least a part of the first path portion is sandwiched and held between the engaging portion and the element portion.   The coil component according to any one of claims 1 to 15, wherein the first wire and the second wire are the same type of wire. A magnetic core inserted inside the main body coil portion;
The coil component according to any one of claims 1 to 16, further comprising: a conductive layer provided between the magnetic core and the main body coil portion. A plurality of the conductive layers, each including a plate-like member laminated via an insulating layer;
The coil component according to claim 17, wherein the plate-like member is provided between the magnetic core and the main body coil portion. A method of manufacturing a coil component including a pair of terminal portions,
One end of the first wire rod is electrically connected to the one terminal portion, the first wire rod is wound around a predetermined central axis to form a first winding portion, and the other end of the first wire rod is A body coil forming step for conducting to the other terminal portion;
The second winding part is formed by winding at least a part of a section between two points included in the second wire so that the magnetic flux generated in the first winding part crosses with a bias. A method of manufacturing a coil component, comprising: a short-circuiting coil forming step of short-circuiting points. In the main body coil forming step, the first wire rod is drawn and tied up to the binding portion that is separated from the first winding portion,
In the short-circuiting coil forming step, the second wire is routed and tied up to the binding part that is separated from the second winding part,
The method of manufacturing a coil component according to claim 19, wherein the first winding portion and the second winding portion are made conductive by executing the main body coil forming step and the short-circuit coil forming step.

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