JP2009259985A - Electronic component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate manufacture of a reactor by: reducing the number of components of the reactor for cost reduction; and reducing the number of assembling steps. <P>SOLUTION: The electronic component includes a core 39 and a coil 35. A plurality of spacers 100, each including a ceramics body part 102 having a surface size almost the same as that of a gap face between magnetizer blocks 39a, 39b and a ceramics frame part 104 formed on the outer periphery of the body part 102, are disposed between the magnetizer blocks 39a, 39b to ensure a gap between the magnetizer blocks 39a, 39b by each body part 102 and to insulate the core 39 from the coil 35 by each frame part 104. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electronic component, and in particular, a core in a reactor component including a core formed by combining a plurality of magnetic blocks with a gap between them, and a coil that forms a winding around the core; The present invention relates to a coil insulating structure and a gap structure between magnetic blocks.

In general, a reactor as one of electronic components includes a winding and a magnetic core, and an inductance is obtained by forming a coil by winding the winding around the core. Conventionally, a reactor is used for a booster circuit, an inverter circuit, an active filter circuit, and the like. As such a reactor, a core formed by combining a plurality of magnetic blocks with a gap material in between, and a coil wound around a cylindrical bobbin disposed around the core are provided in a metal case. Many of them have a structure that is housed in the housing (for example, see Patent Document 1). That is, conventionally, a reactor is used, for example, in an electric circuit of a device having a forced cooling means, and a reactor part in which a coil is formed by winding a winding around a resin bobbin arranged around a core is mainly used as a coil. In order to dissipate the heat generated from the case, it is stored in a case made of a metal material having thermal conductivity, and then a filler is poured and fixed.

  As described above, in the conventional reactor component, the core is formed by combining a plurality of magnetic blocks with the gap material interposed therebetween, and a cylindrical bobbin is disposed around the core. Has a structure in which a coil is wound around.

JP 2005-72198 A

  When assembling the above-described conventional reactor parts, the cylindrical shape of the bobbin is used as a guide, and each magnetic block and gap material are bonded and inserted in sequence into the cylindrical bobbin. Since downsizing is required, the cylindrical shape of the bobbin and the outer peripheral shape of the magnetic block and the gap material have to be very tight, and the assembling work is difficult.

  As described above, in the conventional reactor parts, the core and the coil are insulated and positioned using the bobbin, and the gap between the magnetic blocks is secured and positioned using a plurality of gap materials. Assembling of the reactor parts becomes complicated, and there is a problem that the number of parts increases and the manufacturing cost of the reactor parts increases. Reducing the number of parts as much as possible to reduce costs has been conventionally performed in electronic components such as reactors, but especially regarding the core and coil insulation structure in the reactor and the gap structure between multiple magnetic blocks, There have been few effective proposals for this purpose.

  An object of the present invention is, for example, to reduce the number of parts in an electronic component such as a reactor so as to reduce the cost, and to facilitate the manufacture of the electronic component by reducing the number of assembly steps.

  In conventional electronic components such as reactors, the core and coil insulation structure and the gap structure between multiple magnetic blocks are used to insulate the core and coil with a bobbin made of an insulating material, and the gap between the magnetic blocks and the bobbin. In the present invention, spacers are arranged between the magnetic blocks without using a bobbin to secure a gap between the magnetic blocks, and The spacer has an insulating function between the core and the coil. The spacer is provided with a plurality of magnetic body blocks and gaps, and a core and coil positioning shape. Thus, the insulation between the core and the coil can be ensured with only the spacer, and the plurality of magnetic blocks and gaps and the positioning of the core and the coil can be performed.

  That is, in order to achieve the above object, an electronic component of the present invention includes a core formed by combining a plurality of magnetic blocks with a gap between each other, and a coil disposed around the core. A plurality of spacers including a main body portion made of a non-magnetic material having substantially the same surface dimensions as a gap surface of the magnetic body block and a frame portion made of an insulating material formed on an outer periphery of the main body portion. The gaps between the magnetic body blocks are secured by the main body portions of the plurality of spacers, and the core and the coil are insulated by the frame portions.

  According to such a configuration, the gap between the magnetic blocks can be ensured and the core and the coil can be insulated with only the spacer, so that the conventionally required bobbin can be eliminated. Therefore, the number of parts is reduced, the cost can be reduced, and the production of electronic parts is facilitated by reducing the number of assembly steps.

The spacer may have a protrusion on at least one of the outer peripheral surface and the inner peripheral surface of the frame portion.

  According to such a configuration, the positioning of the coil is facilitated by the protrusions on the outer peripheral surface of the frame portion, and the insulation distance from the core is easily secured. Further, the positioning of the core is facilitated by the protrusion on the inner peripheral surface of the frame portion, and the insulation distance from the coil is easily secured.

  In the spacer, the main body portion and the frame portion may be integrally formed of the same material.

According to such a configuration, the main body portion and the frame portion may be integrally formed of the same material, so that the spacer can be easily manufactured.

  On the other hand, as for the said spacer, you may make it the said main-body part and the said frame part integrally form with a separate material.

According to such a configuration, the main body portion can be formed from a material that can obtain a desired magnetic resistance, and the frame portion can be formed from a material that can obtain a desired insulating property. It becomes easy to ensure insulation between the core and the coil at the same time.

  Furthermore, the reactor of the present invention is characterized in that the above electronic components are housed in a metal case, and the metal case is filled with a filler.

  According to such a configuration, since the filler flows into the periphery of the frame portion of each spacer of the electronic component in the metal case, the heat generated from the core and the coil can be easily radiated from the metal case via the filler. Therefore, the temperature rise of the reactor can be effectively prevented.

  According to the electronic component of the present invention, the electronic component includes a core formed by combining a plurality of magnetic blocks with a gap between each other, and a coil disposed around the core. A plurality of spacers including a main body portion made of a non-magnetic material having substantially the same surface dimensions as the gap surface and a frame portion made of an insulating material formed on the outer periphery of the main body portion are disposed in the gaps between the magnetic blocks. In addition, since the gap between the magnetic blocks is secured by the main body portions of the plurality of spacers and the core and the coil are insulated by the frame portions, the gap between the magnetic blocks can be secured and the core can be formed only by the spacers. And the coil can be insulated. Therefore, the bobbin that has been conventionally required can be eliminated, the cost can be reduced by reducing the number of components, and the manufacture of electronic components can be facilitated by reducing the number of assembly steps.

  An electronic component according to a first embodiment of the present invention will be described in detail with reference to the drawings. In this embodiment, an example in which the present invention is applied to a reactor as an electronic component will be described. FIG. 1 is a perspective view of a reactor including a reactor component as an electronic component according to an embodiment of the present invention. FIG. 1A shows a state in which the reactor component is housed in a metal case, and FIG. After being housed in the protective case, a state in which the filler is further filled is shown.

  A reactor 10 shown in FIGS. 1A and 1B is used, for example, in an electric circuit of a device having forced cooling means, and includes a core 39, a spacer 100 (see FIG. 4 described later), and a winding 32. After the reactor part 20 including the coil 35 that is rotated is housed in a thermally conductive metallic case 31, a filler 38 made of resin is poured and fixed (resin sealing). Incidentally, lead portions 35A and 35B described later of the coil 35 are drawn out, and these lead portions 35A and 35B are formed by, for example, peeling the coating of the winding 32 and exposing the conductor, and other electric parts, etc. Connected. In addition, 103A and 103B shown to Fig.1 (a) are the insulators inserted in order to prevent that the magnetic body block 39a part of the core 39 and the end surface part of the coil 35 contact, respectively.

  FIG. 2 is a perspective view showing the core 39 in the reactor component 20 shown in FIG. As shown in FIG. 2, the core 39 of this embodiment is formed of two magnetic blocks 39a and six magnetic blocks 39b. That is, in the present embodiment, the core 39 has six magnetic blocks 39b arranged in a state where the winding 32 (see FIG. 3) is wound around the core 39, and the winding 32 is not arranged around the core. It includes two magnetic body blocks 39a, and is configured in 8 divisions as a whole. As will be described later, a coil 35 formed by winding a winding 32 is positioned and disposed around the six magnetic blocks 39b via a spacer 100 shown in FIG.

  As shown in FIG. 2, the shape of the core 39 of the reactor component 20 is substantially ring-shaped as a whole, and the six magnetic blocks 39b described above are each composed of two magnetic blocks 39b. Coils 35 are formed by forming a plurality of straight line portions and winding the windings 32 around each straight line portion, thereby obtaining predetermined electrical characteristics. The two magnetic body blocks 39a described above are coupled to the respective linear portions composed of the three magnetic body blocks 39b, and the core 39 is formed in a substantially ring shape. A magnetic gap 36 is secured at the coupling portion between the magnetic blocks 39b and at the coupling portion between the two magnetic blocks 39a and 39b. Thus, in this embodiment, since the core (multiple division type core) formed by combining a plurality of magnetic body blocks with a magnetic gap in between is used, the reactor 10 can be downsized. Become.

FIG. 3 is a perspective view showing the coil 35 in the reactor component 20 shown in FIG. As shown in FIG. 3, the coil 35 of the present embodiment includes a first coil element 35A and a second coil element 35B that are stacked in a rectangular tube shape by winding a winding wire 32 that is a flat wire into a square shape. The first coil element 35A and the second coil element 35B are arranged in parallel. In the coil 35 of the present embodiment, as will be described later, the inner peripheral surfaces of the first coil element 35A and the second coil element 35B are insulated from the magnetic block 39b of the core 39 by the spacer 100 and are in contact with the core 39. Because there is no, there is excellent insulation. Further, the bottom surfaces of the first coil element 35A and the second coil element 35B are insulated by an insulating sheet or the like not shown in FIG. 1A, and do not contact the bottom surface of the metal case 31, so that the insulation is excellent. ing.

Further, for example, it is superior in heat dissipation as compared with a case where a coil element laminated in a cylindrical shape is formed by rounding a rectangular wire, and similarly, a coil element laminated in a cylindrical shape is provided. Compared to the case, the dead space in the metal case 31 is reduced, and it can be housed in a case with a smaller volume, which contributes to downsizing of the entire reactor.

  Furthermore, the coil 35 of the present embodiment includes the first coil element 35A and the second coil element 35B in which the winding wire 32 that is a flat wire is wound in an edgewise (vertical) shape, and therefore, the horizontal winding of the flat wire is performed. Compared with the case, the voltage between the lines can be reduced. Therefore, for example, even in the case of a reactor coil to which a large voltage such as 1000 V is applied, high reliability can be ensured. Here, winding in an edgewise manner means a method of winding a flat wire vertically. Square winding refers to winding a coil in a square shape, and is contrasted with winding a coil in a round shape (round winding).

  Hereinafter, the reactor component 20 as the electronic component of the present embodiment will be described with reference to FIGS. 4 to 6, focusing on the configuration of the spacer 100. FIG. 4 is an exploded perspective view showing a state where the reactor component 20 described above is assembled using the spacer 100. FIG. 5 is a cross-sectional view showing a state where the assembled reactor component is housed in a metal case 31 and resin-sealed with a filler 38 to configure the reactor 10 described above. 6A and 6B are views showing the spacer 100 of the present embodiment, in which FIG. 6A is a perspective view thereof, FIG. 6B is a plan view thereof, FIG. 6C is a front view thereof, and FIG. .

  A reactor component 20 as an electronic component of the present embodiment includes a core 39 formed by combining a plurality of magnetic blocks 39a and 39b with a gap 36 therebetween, and a coil disposed around the core 39. , And a frame portion 104 made of an insulating material formed on the outer periphery of the main body portion 102, and a body portion 102 made of a nonmagnetic material having substantially the same surface dimensions as the gap 36 side surfaces of the magnetic body blocks 39a and 39b. Are provided in the gaps 36 between the magnetic body blocks 39a and 39b, respectively, and the main body portions 102 of the plurality of spacers 100 secure the gaps 36 between the magnetic body blocks 39a and 39b and each frame portion. The core 39 and the coil 35 are insulated by 104. That is, as described above, the spacer 100 is a member that secures a gap between the plurality of magnetic blocks 39a and 39b and between the magnetic blocks 39b. It also has a structure that doubles as a member that ensures insulation between the two.

  That is, as shown in FIGS. 4 and 5, the reactor component 20 of the present embodiment includes eight spacers 100 corresponding to the eight-divided core 39, and the two spacers 100 on the lower left side in FIG. 4. The two spacers 100 on the upper right side secure a gap between the magnetic blocks 39a and 39b, respectively. Further, the other four spacers 100 each secure a gap between the magnetic body blocks 39b. Thus, in the reactor component 20 of this embodiment, the gaps between the magnetic blocks 39a and 39b and between the magnetic blocks 39b are secured by the main body portions 102 of the plurality of spacers 100. That is, a necessary gap (interval) between the magnetic blocks is ensured by the thickness (plate thickness or sheet thickness) of the main body 102. In FIG. 4, insulators 103A and 103B are inserted between the magnetic body block 39a portion of the core 39 and the end surface of the coil 35, respectively, and the core 39 and the coil 35 are combined by the insulators 103A and 103B. This prevents the magnetic body block 39a portion of the core 39 from coming into contact with the end surface portion of the coil 35.

Now, in the reactor component 20 of this embodiment, as shown in FIGS. 4 and 6, the spacer 100 has protrusions 106 formed on one surface on each of the upper, lower, left, and right sides of the frame portion 104. In these protrusions 106, protrusions 106 a are formed on the outer peripheral surface 104 </ b> A of the frame part 104. In the protrusion 106, a protrusion 106b is formed on the inner peripheral surface 104B of the frame 104. As will be described later, each protrusion 106a has a function of positioning the coil 35, and each protrusion 106b has a function of positioning the magnetic blocks 39a and 39b. As described above, in the reactor component 20 of the present embodiment, the coil 35 is positioned by the height of the protrusion 106 a in addition to the thickness of the frame portion 104, and a necessary insulation distance from the core 39 is ensured.

In the present embodiment, the coil 35 is positioned by the thickness of the frame portion 104 and the height of the protrusion 106a to ensure a necessary insulation distance from the core 39. However, the outer peripheral surface 104A of the frame portion 104 is configured. The frame portion 104 may be formed to a thickness (plate thickness) that can secure a necessary insulation distance from the core 39 without providing the protrusion 106a on the top. However, in the present embodiment, since the protrusion 106a is provided on the outer peripheral surface 104A of the frame portion 104, as described later, the periphery of the frame portion 104 of each spacer 100 in the metal case 31, particularly the frame portions 104 mutually. Since the filler 38 flows in between, the heat generated from the core 39 and the coil 35 can be easily radiated from the metal case 31 through the filler 38, and the temperature rise of the reactor 10 can be effectively prevented. Can also be obtained. From such a viewpoint, when the protrusion 104a is not provided on the outer peripheral surface 104A of the frame portion 104 and the frame portion 104 is formed to have a thickness (plate thickness) that can secure a necessary insulation distance from the core 39, the thickness. A notch of an appropriate size may be provided in the frame portion 104 so that the filler 38 does not hinder the flow between the frame portions 104 due to (plate thickness).

  Further, on the outer peripheral surface 104A of the frame portion 104 of the spacer 100, as shown in FIG. 6, tapers 104T and 104T, which are inclined toward the center side of the main body portion 102 of the spacer 100, extend over the entire circumference of the frame portion 104. Is formed. Further, as shown in FIG. 6, the protrusions 106 a on the outer peripheral surface 104 </ b> A of the frame portion 104 are respectively formed with tapers 106 </ b> T and 106 </ b> T that are inclined toward the center side of the main body 102 of the spacer 100. By having these tapers 104T, 104T and tapers 106T, 106T, a structure in which the filler 38 can easily flow in the metal case 31 around the frame portions 104 of the spacers 100, particularly between the frame portions 104. It has become.

As shown in FIG. 6, tapers 106t and 106t are formed on the protrusions 106b on the inner peripheral surface 104B of the frame portion 104 of the spacer 100 so as to incline from the main body portion 102 side toward the frame portion 104 side. ing. Thus, by having the tapers 106t and 106t inclined from the main body 102 side toward the frame 104 side, it is easy to fit the gap surfaces of the magnetic blocks 39a and 39b in accordance with the main body 102 of the spacer 100. It has a structure.

By the way, in this embodiment, each spacer 100 is integrally formed of ceramics in which the main body portion 102 and the frame portion 104 are made of the same material. That is, in this embodiment, the gap 36 between the magnetic blocks 39a and 39b is formed by the main body portion 102 made of ceramics which is a nonmagnetic material having substantially the same surface dimensions as the gap 36 side surface of the magnetic blocks 39a and 39b. The core 39 and the coil 35 are insulated from each other by a frame portion 104 made of ceramics which is also secured and is an insulating material. Thus, in this embodiment, since the main body 102 and the frame 104 of each spacer 100 are integrally formed of ceramics made of the same material, for example, the main body 102 and the frame 104 are formed by a single mold. And the spacer 100 can be manufactured easily. In addition, since the main body 102 and the frame 104 are formed of the same material, the thermal conductivity of the main body 102 and the frame 104 is equal. Therefore, the heat conduction between the magnetic body blocks 39a and 39b, the heat conduction between the core 39 and the coil 35, and the heat conduction between the magnetic body blocks 39a and 39b and the filling resin 38 are improved. In this case, even if heat is generated from the core 39 and the coil 35 due to the current flowing, the heat is easily radiated from the metal case 31 via the magnetic body blocks 39a and 39b and the filler 38, and the reactor 10 Temperature rise can be prevented more effectively.

  Next, a method for assembling the reactor component 20 and the reactor 10 of the present embodiment will be described. To assemble the reactor component 20 of the present embodiment, for example, first, the main surface of the main body portion 102 of the two spacers 100 at the lower left side of the figure after the insulator 103A is inserted into the magnetic body block 39a at the lower left side of FIG. And the gap surface of the magnetic body block 39a are bonded with an adhesive, and then the other main surface of the main body portion 102 of the two spacers 100 and the gap surface of the two left lower magnetic block 39b are bonded. Glue with the agent.

Next, the other gap surface of the two lower left magnetic blocks 39b and the main surface of the main body portion 102 of the next two spacers 100 are bonded with an adhesive, and then the two spacers 100 are bonded. The other main surface of the main body 102 and the gap surfaces of the two middle magnetic blocks 39b are bonded with an adhesive. When this bonding operation is repeated and the other gap surface of the two magnetic body blocks 39a on the upper right side and the main surface of the main body 102 of the two spacers 100 on the upper right side are bonded with an adhesive, eight magnetic body blocks 39b are provided. The coil 35 is inserted and inserted into the straight portion connected through the spacer 100 from the upper right side to the lower left side of the figure. Finally, after inserting the insulator 103B, the other main surface of the main body part 102 of the two spacers 100 on the upper right side and the gap surface of the magnetic body block 39a on the upper right side are bonded with an adhesive, In FIG. 4, the reactor part 20 shown in an exploded manner is assembled.

In this way, the reactor parts 20 can be assembled relatively easily by simply bonding the magnetic body blocks 39a and 39b and the eight spacers 100 with the adhesive after the insulators 103A and 103B and the coil 35 are fitted. it can.

Furthermore, in order to assemble the reactor 10 of this embodiment, as shown in FIG. 5, the lower surface of the two magnetic body blocks 39a is the base part 31a of the metal case 31, respectively. , 31b so as to be placed on the metal case 31. At this time, the reactor component 20 is made of metal by pressing the end surface 39as of the magnetic block 39a toward the other inner side surface 31U from the inner side surface 31S side of the metal case 31, for example, using a spring member (not shown). The movement in the length direction within the case 31 is prevented.

In this state, as shown in FIG. 5, the reactor 10 is assembled by pouring the filler 38 into the metal case 31 and resin-sealing the reactor component 20 in the metal case 31. As described above, when the reactor 10 is actually used in, for example, an electric circuit of a device having a forced cooling means, heat is generated from the coil 35 and the core 39. Therefore, in order to prevent the temperature of the reactor 10 from rising, FIG. The illustrated reactor component 20 is housed in a thermally conductive metal case 31 and fixed with a filler 38, and then the metal case 31 is forcibly cooled (for example, air-cooled or water-cooled). That is, the metallic case 31 of the reactor 10 assembled as described above is screwed to, for example, a forcedly cooled casing or the like so that the lower surface of the metallic case 31 is forcibly cooled. It is fixed in the state where it is in surface contact. The lead portions 35A and 35B are used as a reactor by being connected to other electric components (not shown).

In the reactor 10 of the present embodiment, since the protrusion 106a is provided on the outer peripheral surface 104A of the frame portion 104, the periphery of the frame portion 104 of each spacer 100 in the metal case 31, particularly, as shown in FIG. It is easy for the filler 38 to flow between the portions 104. Therefore, even when heat is generated from the core 39 and the coil 35 due to current flowing when connected to other electrical components or the like and used as a reactor, the heat is dissipated from the metal case 31 via the filler 38. Therefore, the temperature rise of the reactor 10 can be effectively prevented.

Next, a modification of the above embodiment will be described with reference to FIG. FIGS. 7A and 7B are views showing a spacer 200 according to this modification, in which FIG. 7A is a perspective view thereof, FIG. 7B is a plan view thereof, FIG. 7C is a front view thereof, and FIG. . In the spacer 200 of this modification, the main body portion 202 and the frame portion 204 are formed of different materials. That is, in this modification, the main body 202 is formed of ceramics that is a non-magnetic material having substantially the same surface dimensions as the surfaces of the magnetic body blocks 39a and 39b on the gap 36 side, while the frame portion 204 is an insulating material. It is made of a resin, for example, PPS (polyphenylene sulfide resin).

That is, in this embodiment, the gap 36 between the magnetic blocks 39a and 39b is formed by the main body portion 102 made of ceramics which is a nonmagnetic material having substantially the same surface dimensions as the gap 36 side surface of the magnetic blocks 39a and 39b. The core 39 and the coil 35 are insulated from each other by the frame portion 104 made of resin as an insulating material. As described above, in this embodiment, the main body portion 102 of each spacer 100 is formed of ceramics. However, since the frame portion 104 is formed of resin, the spacers are also formed in comparison with the case where the frame portion 104 is also formed of ceramics. 100 can be manufactured at low cost. Further, since the frame portion 104 is formed of resin, it is easy to form the projections 106a and 106b and the tapers 104T and 106T described above on the frame portion 104.

As described above, the gap between the magnetic blocks and the insulation between the core and the coil can be secured only by the spacer 100, which is the same member. Therefore, the gap structure between the magnetic blocks in the reactor 10 and the insulation between the core and the coil. The structure can be simplified, the number of parts can be reduced, the cost can be reduced, and the manufacturing of the reactor 10 can be facilitated through a reduction in the number of assembly steps.

In other words, the bobbin that has been required in the past can be eliminated, the cost can be reduced by reducing the number of parts, and the number of assembly steps can be reduced. This eliminates the need to insert the bobbin one by one into the bobbin, which makes it easy to manufacture the reactor component 20 as an electronic component, and thus the reactor 10.

Further, since the magnetic blocks are accurately positioned with the main body portion 102 (magnetic gap) interposed therebetween, the magnetic reliability of the core 39 can be improved. Furthermore, since the core 39 and the coil 35 are accurately positioned with the frame portion 104 (insulating material) interposed therebetween, the insulation reliability between the core 39 and the coil 35 can be improved.
Further, as described with reference to FIG. 4, the assembly work of the reactor 10 is extremely simplified and is not troublesome.

  Furthermore, since the number of parts is reduced, the structure of the reactor 10 is simplified. Thereby, arrangement | positioning and the assembly method of the member in the reactor 10 become complicated, and space efficiency improves. In addition, the manufacturing cost of the reactor 10 can be reduced.

  As described above, according to the electronic component of this embodiment, the insulating structure of the core 39 and the coil 35 and the gap structure between the magnetic blocks 39a and 39b in the reactor 10 can be simplified, and the number of components can be reduced to reduce the cost. In addition, it is possible to facilitate the manufacture of the reactor 10 through a reduction in the number of assembly steps.

While the present invention has been described based on the embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the claims.
For example, in the above-described embodiment, the present invention is applied to an electronic component having a coil composed of two coil elements. However, the present invention can also be applied to an electronic component having a coil composed of a single coil element. is there. Further, in the above-described embodiment, the present invention is applied to an electronic component having a coil composed of a vertical winding (edgewise winding) of a rectangular wire. However, an electronic component having a coil of a horizontal winding of a rectangular wire or a coil of a round wire is used. Of course, the present invention can also be applied.

  The present invention can be widely applied to electronic components other than the reactor as long as the electronic component has a core and a coil divided into a plurality through a magnetic gap.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the reactor containing the reactor component as an electronic component of one Embodiment of this invention, (a) shows the state which accommodated the reactor component in the metal case, (b) is accommodated in the metal case. Then, a state in which a filler is filled is shown. It is a perspective view which shows the core in the reactor components of one Embodiment of this invention. It is a perspective view which shows the coil in the reactor components of one Embodiment of this invention. It is a perspective view which decomposes | disassembles and shows the state which assembled the reactor component of one Embodiment of this invention. It is sectional drawing which shows the state which accommodated the reactor component of one Embodiment of this invention in metal-made cases, and resin-sealed with the filler and comprised the reactor. It is a figure which shows the spacer of one Embodiment of this invention, (a) is the perspective view, (b) is the top view, (c) is the front view, (d) is the right view. It is a figure which shows the spacer which concerns on the modification of this invention, (a) is the perspective view, (b) is the top view, (c) is the front view, (d) is the right view.

Explanation of symbols

10 reactors, 20 reactor parts, 31 metal case,
32 windings, 35 coils, 38 fillers, 39 cores,
39a magnetic block, 39b magnetic block,
100 spacer, 102 main body, 104 frame, 104A outer peripheral surface,
104B Inner peripheral surface, 106 protrusion, 106a protrusion, 106b protrusion

Claims (5)

A core formed by combining a plurality of magnetic blocks with a gap therebetween, and a coil disposed around the core, and having substantially the same surface dimensions as the gap surface of the magnetic block A plurality of spacers including a main body portion made of a non-magnetic material and a frame portion made of an insulating material formed on the outer periphery of the main body portion are disposed in the gaps between the magnetic body blocks, and each main body of the plurality of spacers An electronic component characterized in that a gap is secured between the magnetic body blocks by a portion and the core and the coil are insulated by each frame portion. The electronic component according to claim 1, wherein the spacer has a protrusion on at least one of an outer peripheral surface and an inner peripheral surface of the frame portion.   3. The electronic component according to claim 1, wherein the main body portion and the frame portion of the spacer are integrally formed of the same material. 4. 3. The electronic component according to claim 1, wherein the main body portion and the frame portion are integrally formed of separate materials in the spacer. 4. A reactor, wherein the electronic component according to any one of claims 1 to 4 is accommodated in a metal case, and the metal case is filled with a filler.

Images