JP2014027087A - Reactor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a reactor device in which the gap between cores can be maintained constant, while reducing the number of components and man hours.SOLUTION: A reactor device 1 includes a pair of coils 50a, 50b juxtaposed and interconnected, an annular core having a pair of center cores 72, 72 arranged in the pair of coils correspondingly, and a pair of side cores 74, 74 connecting the ends of the pair of center cores correspondingly, a gap member 212 interposed between the cores constituting the annular core, and bobbin cases 100, 200 having center core housing sections 104, 204 for housing the pair of center cores, and holding the pair of coils and the annular core. The gap member is molded integrally with the center core housing section and has a movable section 216 for connection with the center core housing section.

Description

  The present invention relates to a reactor device, and more particularly to a reactor device in which a reactor case is filled with a filler.

  In recent years, hybrid vehicles and electric vehicles equipped with an electric motor as a driving force source have become widespread. Such hybrid vehicles and electric vehicles have high voltages, and reactor devices are used to boost the voltage of the battery.

  In such a reactor device, a pair of coils that are juxtaposed to each other and an annular core that is fitted into these coils are provided, and a reactor bobbin is used to ensure insulation between the annular core and both coils. It has been.

  Patent Document 1 relates to a coil and a method of forming the coil, and after forming the reactor coil 12, the winding frame portion 4b is inserted into the reactor coil 12, the partition portion 4a is fitted from both ends of the winding frame portion 4b, and the winding is performed. The structure which inserts the block 3b and the sheet material 6 which comprise the linear part of the reactor core 9 in the frame part 4b, and adhere | attaches the block 3a and the sheet material 6 is disclosed. In such a configuration, since the reactor coil 12 is formed on each linear portion of the reactor core 9 via the winding frame portion 4b, predetermined electrical characteristics can be obtained, and the block 3a of the reactor core 9 is made of a sheet material. 6 is adhered to each straight portion of the reactor core 9 via the block 6, so that the block 3a can be prevented from falling off.

JP 2008-186980 A

  However, according to the study of the present inventor, in the configuration disclosed in Patent Document 1, the block 3a is bonded to each linear portion of the reactor core 9 via the sheet material 6, but the sheet material 6 and the block 3a are bonded. An adhesive application process and a curing process for fixing the adhesive and the block 3a are necessary, and the management of the fixing position between the adhesive and the block 3a is complicated, and the cost may increase.

  Further, in such a configuration, when a gap is to be provided between the reactor cores 9, variations in sheet thickness and adhesion thickness of the sheet material 6 occur, and thus the device characteristic variation becomes large. There is a tendency.

  The present invention has been made through the above-described studies, and an object of the present invention is to provide a reactor device that can keep the gap between cores constant while reducing the number of parts and the number of assembly steps.

In order to achieve the above object, a first aspect of the present invention includes a pair of coils juxtaposed and connected to each other, a pair of center cores disposed corresponding to the pair of coils, and the pair of coils. An annular core having a pair of side cores that communicate with each other at the ends of the center core, a gap member interposed between the cores constituting the annular core, and a center core housing portion that houses the pair of center cores. And a bobbin case for holding the pair of coils and the annular core, wherein the gap member is integrally formed with the center core housing portion and communicated with the center core housing portion. It is a reactor apparatus which has a movable part.

  Moreover, the 2nd aspect of this invention is a reactor apparatus which has the protrusion part which protrudes toward the said core from the main-body part of the said gap member in addition to this 1st aspect.

  In addition to the first or second aspect, the third aspect of the present invention is a reactor device in which end portions on the insertion side of the pair of center cores of the protruding portion are tapered.

  Moreover, the 4th aspect of this invention is a reactor apparatus provided with the opening part which the said bobbin case opened part of the said center core accommodating part in addition to any of this 1st-3rd aspect.

  Moreover, the 5th aspect of this invention is a reactor apparatus which can be divided | segmented so that the said bobbin case may divide | segment the said center core accommodating part in addition to any one of this 1st-4th aspect.

  In the reactor device according to the first aspect of the present invention, a pair of coils that are juxtaposed and connected to each other, a pair of center cores that are disposed corresponding to the pair of coils, and ends of the pair of center cores An annular core having a pair of side cores that communicate with each other, a gap member interposed between the cores constituting the annular core, and a center core housing portion that houses the pair of center cores, A bobbin case that holds a coil and the annular core, and the gap member is integrally formed with the center core housing portion and has a movable portion that is in communication with the center core housing portion. The center core can be fixed simply by assembling the side core into the side core housing, reducing the number of parts for the gap member. It can be. Further, since no adhesive is used, the number of assembling steps can be reduced, and the gap member thickness variation due to the adhesive is eliminated, so that the gap configuration accuracy can be improved. Furthermore, by providing the movable part, even if the filler is cured and contracted, the center core, the side core, and the gap member can follow this, so that the corresponding ones of the center core and the side core maintain a constant gap. In addition, even if an error occurs in the thickness dimension of the center core and the side core, the thickness of the gap member is constant, so that the gap between the corresponding ones of the center core and the side core remains constant. The error can be absorbed.

  In the reactor device according to the second aspect of the present invention, the gap member has a protruding portion that protrudes from the main body portion of the gap member toward the core, so that the filler can reach the bobbin case and the internal space of the core. It becomes easier to fill and prevents poor insulation due to insufficient filling of the filling material in the internal space, and this protrusion improves the mobility of the gap member by providing a clearance between the core and the movable part of the gap member. can do.

  In the reactor device according to the third aspect of the present invention, the end of the protrusion on the insertion side of the pair of center cores is tapered, so that when the core is inserted into the bobbin case, the core becomes the protrusion. It can be prevented from being damaged by being caught and the assembling property can be improved.

In the reactor device according to the fourth aspect of the present invention, the bobbin case is provided with an opening that opens a part of the center core housing portion, so that from the opening to the internal space between the bobbin case and the core. The filling material can be easily filled.

  In the reactor device according to the fifth aspect of the present invention, the bobbin case can be easily assembled to the bobbin case by having an upper and lower separate structure that can be divided so as to divide the center core housing portion. .

It is a perspective view of the reactor apparatus in embodiment of this invention, FIG.1 (b) shows the reactor case and side core of the reactor apparatus of this embodiment seen toward the positive direction of the y-axis in Fig.1 (a). It is the abbreviated front view. FIG. 2A is a perspective view of the bobbin assembly in the reactor device of the present embodiment, and FIG. 2B is a perspective view of the bobbin assembly showing FIG. 2A with the top and bottom reversed. . Fig.3 (a) is a perspective view of the 2nd bobbin case in the reactor apparatus of this embodiment. Moreover, FIG.3 (b) is a top view of the 2nd bobbin case in the reactor apparatus of this embodiment, and a center core is also shown in FIG.3 (b). FIG. 4A is a partially enlarged perspective view of the second bobbin case in the reactor device of the present embodiment, and FIG. 4B shows the main body portion of the gap member in the second bobbin case of FIG. It is the elements on larger scale seen toward the positive direction of the x-axis.

  Hereinafter, a reactor device according to an embodiment of the present invention will be described in detail with reference to the drawings as appropriate. In the figure, the x-axis, y-axis, and z-axis form a three-axis orthogonal coordinate system, the z-axis direction is the vertical direction, and the xy plane is the horizontal plane.

  FIG. 1 is a perspective view of a reactor device in the present embodiment, and FIG. 1B is a reactor case of the reactor device in the present embodiment as viewed in the positive direction of the y-axis in FIG. It is the front view which omitted the side core. FIG. 2A is a perspective view of the bobbin assembly in the reactor device of the present embodiment, and FIG. 2B is a perspective view of the bobbin assembly showing FIG. 2A with the top and bottom reversed. . Fig.3 (a) is a perspective view of the 2nd bobbin case in the reactor apparatus of this embodiment. FIG.3 (b) is a top view of the 2nd bobbin case in the reactor apparatus of this embodiment, and a center core is also shown in FIG.3 (b). 4A is a partially enlarged perspective view of the second bobbin case in the reactor device of the present embodiment, and FIG. 4B is a main body of the gap member in the second bobbin case of FIG. 4A. It is the elements on larger scale which looked at the part toward the positive direction of the x-axis.

  As shown in FIG. 1, the reactor device 1 includes a reactor case 10 and a coil assembly 30 that is housed and fixed in the reactor case 10 and has a pair of coils 50 a and 50 b. The reactor case 10 that houses the coil assembly 30 is filled with the filler M to maintain the coil assembly 30 in a sealed state.

  Specifically, the reactor case 10 has a rectangular box shape with the upper end being an open end, and is typically an integrally formed product made of aluminum (including an aluminum alloy). A plurality of fixing portions 12 fixed to the fixing member. A part of the vertical wall of the reactor case 10 is notched to form a notch, and the case fitting member 14 is fitted and fixed to the notch. External fittings 20a and 20b that are electrically connected to the coil assembly 30 are mounted on the case fitting member 14 through corresponding insertion holes 16a and 16b.

2 to 4, the coil assembly 30 includes a coil 50 in addition to a pair of coils 50a and 50b, each extending in the y-axis direction and juxtaposed with each other in the x-axis direction.
a and 50b each extending in the direction of the y-axis and correspondingly disposed between the center cores 72 and 72 and the center cores 72 and 72 disposed in the coils 50a and 50b, respectively. Side cores 74 and 74 disposed to correspond to magnetic connections, coils 50a and 50b, center cores 72 and 72, and a bobbin assembly 90 on which the side cores 74 and 74 can be mounted. Prepare. Here, the external terminals 20a and 20b are electrically connected corresponding to one ends of the coils 50a and 50b, and the other ends of the coils 50a and 50b are also electrically connected to each other. The center cores 72 and 72 and the side cores 74 and 74 are typically made of electromagnetic steel, and form an annular reactor core that can be correspondingly connected and magnetically connected.

  The bobbin assembly 90 is preferably composed of divided components from the viewpoint of improving the assemblability of the coils 50a, 50b and the like. Specifically, the bobbin assembly 90 includes a first bobbin case 100 and a second bobbin case 200, each of which is typically an integrally molded product made of resin such as PPS (polyphenylene sulfide) resin. Is preferred. Although the first bobbin case 100 and the second bobbin case 200 are separate parts, they can be assembled and freely integrated. When they are assembled, the bobbin assembly has an integral structure. 90.

  The first bobbin case 100 includes a side core housing portion 102 on the negative direction side of the y axis, and a pair of plate-like members juxtaposed in the x axis direction while extending from the side core housing portion 102 to the positive direction side of the y axis. Center core accommodating portions 104 and 104. Here, from the viewpoint of improving the filling property of filling the filling material M into the coil assembly 30, each of the center core housing portions 104 and 104 has a rectangular opening 108 with a plate-like portion opened in the vertical direction. 108 are preferably provided. And when the center core accommodating parts 104 and 104 are inserted corresponding to the inner peripheral parts of the coils 50a and 50b, the coils 50a and 50b are roughly positioned, and the filler M is placed on the inner peripheral side of the coils 50a and 50b. From the viewpoint of improving the filling property of filling the inside of the coil assembly 30 through the openings 108 and 108, the peripheral portions extending in the y-axis direction of the openings 108 and 108 are respectively formed therefrom. It is preferable that projecting portions 106 and 106 projecting upward are provided. Here, from the viewpoint of improving the strength of the plate-shaped center core housing portions 104 and 104, the protruding portions 106 and 106 are respectively arranged on the y-axis of the peripheral portions of the openings 108 and 108 extending in the y-axis direction. It is preferable to have a rail-like configuration that is linearly connected in the direction and protrudes upward. That is, rail-like projecting portions 106 and 106 projecting upward in a straight line in the y-axis direction are provided on the peripheral edge portion of one opening 108 extending in the y-axis direction so as to face each other. It is preferable. Further, from the viewpoint of improving the assemblability in which the center core housing portions 104 and 104 are inserted and assembled corresponding to the inner peripheral portions of the coils 50a and 50b, the ends of the projecting portions 106 and 106 in the direction of the y axis. It is preferable that tapered portions 106t and 106t are respectively provided at the end portions on the insertion side where the center core accommodating portions 104 and 104 are inserted corresponding to the inner peripheral portions of the coils 50a and 50b. In this case, for ease of molding of the first bobbin case 100, tapered portions 106t and 106t may be provided at both ends of the protruding portions 106 and 106 in the y-axis direction, respectively. In addition, a plurality of support portions 110 may be provided in the openings 108 and 108 in a manner such as bridging so that the center cores 72 and 72 can be securely held while increasing the strength of the center core housing portions 104 and 104, respectively. .

Here, as can be understood with reference also to FIG. 1B, the coils 50a and 50b are wound around the bobbin assembly 90 in which the first bobbin case 100 and the second bobbin case 200 are assembled together. When the coil assembly 30 is configured, when the center core housing portions 104 and 104 are inserted corresponding to the inner peripheral portions of the coils 50a and 50b, the upper ends of the protruding portions 106 and 106 are the coils 50a and 50b. By guiding the inner peripheral portion of the coil, the spatial relationship between the upper ends of the protruding portions 106 and 106 and the inner peripheral portions of the coils 50a and 50b may be in contact with each other or a minute gap may be defined. Set to state. That is, the center core housing parts 104, 10
Between the upper surface of 4 and the inner peripheral portions of the coils 50a and 50b, a gap is always secured. Therefore, when filling the reactor case 10 in which the coil assembly 30 is accommodated with the filler M, the fluid filler M in the middle of filling the upper surfaces of the center core accommodating portions 104 and 104 and the coils 50a and 50b. It is possible to surely enter the inside of the coil assembly 30 through the openings 108 and 108 from the gap maintained between the peripheral portions.

  The second bobbin case 200 includes a side core housing portion 202 on the positive direction side of the y-axis, and a pair of box-shaped pairs juxtaposed in the x-axis direction while extending from the side core housing portion 202 to the negative direction side of the y-axis. Center core housings 204 and 204 are provided. Here, from the viewpoint of improving the filling property of filling the filling material M into the coil assembly 30, the center core housing portions 204 and 204 each have a plurality of rectangular openings partitioned by a plurality of support portions 210. A portion 208 is preferably provided. Further, the support portion 210 is erected on both the positive and negative sides of the x-axis in the center core housing portions 204 and 204 and yz to improve the strength of the center core housing portions 204 and 204 and securely hold the center core 72. It may be a vertical wall-like portion parallel to the plane. From the viewpoint of roughly positioning the coils 50a and 50b when the center core accommodating portions 204 and 204 are inserted corresponding to the inner peripheral portions of the coils 50a and 50b, the bottom surfaces of the center core accommodating portions 204 and 204 are provided. The part is preferably provided with projecting parts 206 and 206 projecting downward from the bottom part. Here, from the viewpoint of improving the strength of the center core housing portions 204 and 204, it is preferable that the protrusions 206 and 206 have a rail-like configuration that linearly extends in the y-axis direction and protrudes downward. Further, from the viewpoint of improving the assemblability in which the center core housing portions 204 and 204 are inserted and assembled corresponding to the inner peripheral portions of the coils 50a and 50b, the ends of the projecting portions 206 and 206 in the y-axis direction It is preferable that tapered portions 206t and 206t are respectively provided at the end portions on the insertion side where the center core accommodating portions 204 and 204 are inserted corresponding to the inner peripheral portions of the coils 50a and 50b. In this case, for ease of molding of the second bobbin case 200, tapered portions 206t and 206t may be provided at both ends of the protruding portions 206 and 206 in the y-axis direction, respectively.

  Here, as can be understood with reference also to FIG. 1B, the coils 50a and 50b are wound around the bobbin assembly 90 in which the first bobbin case 100 and the second bobbin case 200 are assembled together. When the coil assembly 30 is configured, when the center core housing portions 204 and 204 are inserted corresponding to the inner peripheral portions of the coils 50a and 50b, the lower ends of the protruding portions 206 and 206 are the coils 50a and 50b. By guiding the inner peripheral part of the coil, the relationship between the lower ends of the protruding parts 206 and 206 and the inner peripheral part of the coils 50a and 50b is set to a state where they abut each other or a minute gap is defined. Has been. That is, a gap is always ensured between the lower surfaces of the center core housing portions 204 and 204 and the inner peripheral portions of the coils 50a and 50b. Therefore, when filling the reactor case 10 in which the coil assembly 30 is accommodated with the filler M, the fluid filler M in the middle of filling is filled with the lower surfaces of the center core accommodating portions 204 and 204 and the coils 50a and 50b. The filler M can flow between the peripheral portions, the fluidity of the filler M is improved, and the wearability is improved, and the filler M can enter the coil assembly 30 through the plurality of openings 208. It is.

In the second bobbin case 200, a plurality of gap members 212 are provided integrally with each of the pair of center core housing portions 204, 204. The gap member 212 is disposed between adjacent ones of the plurality of center cores 72 accommodated in each center core accommodating portion 204, and the side core 74 accommodated in the side core accommodating portion 102 of the first bobbin case 100. Between the center core 72 accommodated in the end portion of each center core accommodating portion 204 adjacent to the side core 74 and the side core 74 accommodated in the side core accommodating portion 202 of the second bobbin case 200 and the end portion of each center core accommodating portion 204 adjacent thereto. Are disposed between the center cores 72 accommodated therein. In the case where the plurality of center cores 72 are accommodated in the pair of center core accommodating portions 204 and 204 as described above, the gap member 212 allows the plurality of center cores 72 to be accurately maintained while maintaining the gaps between the plurality of center cores 72 accurately. This contributes to fixing the plurality of center cores 72 and the pair of side cores 74 and 74 while accurately maintaining a gap between the side core 74 and the corresponding center core 72 corresponding thereto.

  When the number of center cores 72 accommodated in the pair of center core accommodating portions 204 and 204 is one, the gap member 212 is adjacent to the side core 74 accommodated in the side core accommodating portion 102 of the first bobbin case 100 and the side core 74. Between the center cores 72 accommodated in the center core accommodating portions 204 and between the side cores 74 accommodated in the side core accommodating portions 202 of the second bobbin case 200 and the center cores 72 accommodated in the center core accommodating portions 204 adjacent thereto. It will be arranged between. In this way, when one center core 72 is accommodated in each of the pair of center core accommodating portions 204, 204, the gap member 212 forms a gap between the side core 74 and the corresponding center core 72 corresponding thereto. This contributes to fixing each center core 72 and the pair of side cores 74 and 74 while maintaining the accuracy.

  Specifically, as can be understood with reference to FIG. 4, the gap member 212 has a vertical wall shape parallel to the yz plane in the main body portion 214 and the center core housing portion 204 in addition to the main body portion 214, and the positive and negative of the x axis. A pair of movable portions 216 and 216 extending in communication with each other and a relatively high strength support portion 210 erected on both sides are provided. The main body 214 of the gap member 212 having the movable parts 216 and 216 is allowed to move in the three axial directions of the x axis, the y axis, and the z axis. Therefore, even if the center core 72 and the side core 74 are slightly deviated from the normal mounting position due to the dimensional tolerance or the mounting tolerance of the center core 72 and the side core 74, the gap between them is maintained at a predetermined value, and the corresponding center core housing portions are accommodated. 104 and 204 and the side core housing portions 102 and 202 can be reliably maintained and fixed. In addition, until the filling material M is filled in the reactor case 10 and the filling material M is solidified, the movable portions 216 and 216 are deformed following the movements of the center core 72 and the side core 74. Accordingly, the main body 214 is allowed to move in response to the gap, so that the gap between the center core 72 and the side core 74 is maintained at a predetermined value, and the corresponding center core accommodating portions 104 and 204, and the side core accommodating portion 102, It is possible to reliably maintain and fix in 202.

  In addition, the gap member 212 preferably includes protrusions 218 that partially protrude from the main body 214 on both the positive and negative sides of the y-axis. Such a protrusion 218 can reliably separate the movable portion 216 from the adjacent center core 72 and side core 74 corresponding to the movable portion 216, and the movement of the main body portion 214 is more reliably allowed without being hindered. In addition, when filling the reactor case 10 containing the coil assembly 30 with the filler M, the fluid filler M in the middle of filling is in contact with the protruding portion 218 and the adjacent center core 72 and side core corresponding thereto. 74, the fluidity of the filler M is increased and the wearability of the filler M is improved, and the coil assembly 30 of the coil assembly 30 is interposed via the void. It can penetrate inside. Further, the protruding portion 218 is tapered so that the upper end portion thereof is tapered in consideration of improving workability in which the center core 72 is lowered and placed and accommodated in the corresponding side core accommodating portions 102 and 202. It is preferable to have the part 220.

  In order to manufacture the reactor device 1 having the above configuration, the following steps may be performed. In the following manufacturing process, for convenience of explanation, separate first bobbin case 100 and second bobbin case 200 are used. Center core housing parts 104 and 104 of first bobbin case 100 have openings 108, The description will be made assuming that the center core housing portions 204 and 204 of the two-bobbin case 200 have the opening 208.

Specifically, in such a manufacturing process, first, the first bobbin case 1 in a state of being divided from each other.
00 and the second bobbin case 200 are prepared.

  Next, the center core housing portions 104 and 104 of the first bobbin case 100 are inserted into the inner peripheral portions of the coils 50a and 50b so as to be inserted therethrough. On the other hand, the center cores 72 and 72 are placed and housed in the center core housing portions 204 and 204 of the second bobbin case 200, respectively.

  Next, in the second bobbin case 200, the first core bobbin case 204 and 204, in which the center cores 72 and 72 are placed, enter corresponding to the inner peripheral portions of the coils 50a and 50b and are inserted therethrough. The first bobbin case 100 is made to face the upper side of the second bobbin case 200 so that the center core housing parts 104, 104 of the 100 and the center core housing parts 204, 204 of the second bobbin case 200 are aligned with each other. Combined and integrated by a configuration such as fitting.

  Next, side cores 74 and 74 are placed and accommodated in the side core accommodating part 102 of the first bobbin case 100 and the side core accommodating part 202 of the second bobbin case 200, respectively, and the corresponding insertion holes 16a and 16b are accommodated. The case fitting member 14 with the external terminals 20a and 20b attached thereto is attached and fixed to the first bobbin case 100 to constitute the coil assembly 30. At this time, the gap member 212 having the movable portions 216 and 216 moves minutely and absorbs the deviation from the normal mounting position caused by the dimensional tolerance and the mounting tolerance of the center core 72 and the side core 74.

  Next, the coil assembly 30 is housed and fixed in the reactor case 10 while the case fitting member 14 is fitted in the notch of the reactor case 10. At this time, one end of each of the coils 50a and 50b is electrically connected to the corresponding external terminal 20a and 20b, and the other end of each of the coils 50a and 50b is electrically connected. The other ends of the coils 50a and 50b may be electrically connected in advance.

  Next, the filling material M is filled in the reactor case 10 in which the coil assembly 30 is housed and fixed. At this time, the inner peripheral portions of the coils 50 a and 50 b are positioned at the upper ends of the protruding portions 106 and 106 provided in the center core housing portions 104 and 104 of the first bobbin case 100. That is, when filling the reactor case 10 in which the coil assembly 30 is accommodated with the filler M, the fluid filler M in the middle of filling the upper surfaces of the center core accommodating portions 104 and 104 in the first bobbin case 100. The air enters the inside of the coil assembly 30 through the openings 108 and 108 from the gap maintained between the coils 50a and 50b. At the same time, the inner peripheral portions of the coils 50a and 50b are positioned at the lower ends of the protrusions 206 and 206 provided in the center core housing portions 204 and 204 of the second bobbin case 200. In other words, when filling the reactor case 10 containing the coil assembly 30 with the filler M, the fluid filler M in the middle of filling fills the lower surfaces of the center core accommodating portions 204 and 204 and the coils 50a and 50b. The filler M can flow between the peripheral portions, the fluidity of the filler M is increased, and the wearability of the filler M is improved. In addition, the filler M penetrates into the coil assembly 30 through the plurality of openings 208. At this time, the gap member 212 having the movable portions 216 and 216 follows the movement of the center core 72 and the side core 74 until the filling material M is filled in the reactor case 10 and the filling material M is solidified. And the gap between the center core 72 and the side core 74 is maintained and fixed in the corresponding center core accommodating portions 104 and 204 and the side core accommodating portions 102 and 202 while maintaining the gap between the center core 72 and the side core 74 at a predetermined value.

Then, after filling the reactor case 10 with a predetermined amount of the filler M, the reactor device 1 is completed by stopping the filling of the filler M and solidifying it. In addition, the center core accommodating parts 204 and 204 of the second bobbin case 200 may be inserted through the coils 50a and 50b first in the above steps.

  In the present invention, the shape, arrangement, number, and the like of the members are not limited to the above-described embodiments, and the constituent elements thereof are appropriately replaced with those having the same operational effects, and the gist of the invention is not deviated. Of course, it can be appropriately changed within the range.

  As described above, in the present invention, it is possible to provide a reactor device that can keep the gap between the cores constant while reducing the number of parts and the number of assembling steps. It is expected to be widely applicable to the field of reactor devices for vehicles such as hybrid vehicles and electric vehicles.

DESCRIPTION OF SYMBOLS 1 ... Reactor apparatus 10 ... Reactor case 12 ... Fixed part 14 ... Case fitting member 16a, 16b ... Insertion hole 20a, 20b ... External terminal 30 ... Coil assembly 50a, 50b ... Coil 72 ... Center core 74 ... Side core 90 ... Bobbin set Solid 100 ... First bobbin case 102 ... Side core housing part 104 ... Center core housing part 106 ... Projection part 106t ... Tapered part 108 ... Opening part 110 ... Supporting part 200 ... Second bobbin case 202 ... Side core housing part 204 ... Center core housing part 206 ... projection 206t ... taper 208 ... opening 210 ... support 212 ... gap member 214 ... main body 216 ... movable 218 ... projection 220 ... taper M ... filler

Claims (5)

A pair of coils juxtaposed and connected to each other;
A pair of center cores disposed corresponding to the pair of coils, and an annular core having a pair of side cores correspondingly connecting the ends of the pair of center cores;
A gap member interposed between cores constituting the annular core;
A bobbin case having a center core housing portion for housing the pair of center cores and holding the pair of coils and the annular core;
In the reactor device comprising:
The said gap member is integrally formed with the said center core accommodating part, and has a movable part connected to the said center core accommodating part, The reactor apparatus characterized by the above-mentioned.   The reactor device according to claim 1, wherein the gap member has a protruding portion that protrudes from a main body portion of the gap member toward the core.   3. The reactor device according to claim 1, wherein ends of the projecting portions on the insertion side of the pair of center cores are tapered.   4. The reactor device according to claim 1, wherein the bobbin case includes an opening that opens a part of the center core housing portion. 5.   The reactor device according to any one of claims 1 to 4, wherein the bobbin case is separable so as to divide the center core housing portion.

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