JP2011066217A - Coil component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coil component whose height is reduced. <P>SOLUTION: The coil component includes a core cover 4 which houses a core 3 and forms a substantially annular body, a first and a second conductor wound around the core cover 4 to form coils, and a base portion 2 having a pair of terminal bases 21, 21 to which ends of the first and second conductors are coupled and a coupling portion 25 connecting the pair of terminal bases 21, 21 to each other, and mounted with the core cover 4. The core cover 4 is provided with a pair of conductor partition portions 42 each constituted including a lower lib portion 42A protruding downward from a reverse surface 41A and extending radially, wherein the lower lib part 42A has a lower groove 42a formed extending radially so that the coupling portion 25 engages it, a lower end edge of the coupling portion 25 forms a lower end portion of the base portion 2 to be positioned substantially in the same plane with a lower end portion of the lower lib portion 42A, and an upper end edge of the coupling portion 25 is housed in the lower groove 42a to engage the core cover 4, the vertical distance of the coupling portion 25 being substantially equal to the depth of the lower groove 42a. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a coil component, and more particularly to a coil component used as a line filter using a toroidal core.

  Conventionally, there is a line filter using a toroidal core, and as an example of this line filter, as shown in Patent Document 1, a core cover that houses a toroidal core, a conductive wire wound around the core cover, And a base cover is mounted on the base portion, and a line filter is mounted on the substrate.

JP 58-25015 A

  In the conventional line filter, as described above, since the core cover is mounted on the base portion, the height of the line filter is determined by the sum of the thickness of the base portion and the thickness of the core cover.

  In recent years, since downsizing of electronic devices and the like has been promoted, coil parts that are line filters are also required to have a low profile. However, in the line filter having the above-described configuration, the thickness of the core cover is reduced from the substrate. Because of being included in the upper back, the height has not been reduced. Accordingly, an object of the present invention is to provide a coil component with a reduced height.

  In order to solve the above-described problems, the present invention provides a toroidal core, a core cover that accommodates the toroidal core and has a through-hole to form a substantially annular body, and a plurality of wires that are wound around the core cover to form coils. And a base part having a plurality of terminal blocks to which the respective ends of the plurality of conductive wires are coupled and a coupling part for connecting the terminal blocks to each other and to which the core cover is mounted are provided. To do. In this coil component, the core cover includes a conductive wire partition portion that includes one end side rib portion that protrudes from one end surface in the axial direction of the annular body to one end side in the axial direction and extends in the radial direction of the annular body. The same number of conductors are provided, and a conductor winding region in which one conductor is wound is defined between adjacent conductor partitioning parts, and one end side groove that extends in the radial direction and engages with the connecting part is formed in one end side rib part. Is done. The connecting portion has one end edge on one end side in the axial direction and the other end edge on the other end side in the axial direction, and the other end edge is accommodated in the groove on one end side and engages with the core cover and extends into the through hole. In addition, a partition plate disposed at a position that divides the plurality of conductor winding regions in cooperation with the conductor partition portion in the through hole is provided at the other end edge.

  According to such a configuration, since the connecting portion is accommodated in the groove on the one end side, the distance (upper back) in the annular body axial direction of the coil component configured by combining the core cover and the base portion is reduced (lower profile). )can do.

  In the coil component having the above configuration, the one end edge forms one end side end portion of the base portion and is positioned on the same plane as the end portion in the protruding direction of the one end side rib portion, and the distance from the one end edge to the other end edge is It is preferable to be configured to be substantially the same or shorter than the depth of the one-end groove.

  According to such a configuration, the one end side end portion of the core cover provided with the conductive wire partitioning portion and the one end side end portion of the base portion are on the same plane, so that the coil component composed of the core cover and the base portion The one end side end portion and the one end side end portion of the core cover can be on the same plane. Therefore, the thickness of the base part to which the core cover is attached is not included in the upper back of the coil component, and the coil component can be reduced in height.

  Each conductive wire partitioning portion has an inner peripheral rib portion that protrudes from the inner peripheral surface that defines the through hole of the core cover toward the center of the annular body and extends in the axial direction on the inner peripheral surface. There are the same number of side edges as the number of the conductive wire partitioning portions that engage with the inner circumferential rib portion extending in the extending direction extending into the hole, and the inner circumferential rib portion has one side edge of the partition plate extending in the axial direction. Engaging inner peripheral side grooves are formed, and each terminal block has a pair of connecting portions arranged on one conductor winding region side and the other conductor winding region side with respect to the conductor partitioning portion. The one conductor is wound around one conductor winding area, and one of the terminal blocks adjacent to one conductor winding area is connected to one conductor winding area, It is preferable that both ends are connected to the connecting portion located on one of the conductor winding regions of the other terminal block adjacent to the conductor winding region. Arbitrariness.

  According to such a configuration, since the inner peripheral side groove of the inner peripheral rib portion and the side edge of the partition plate are engaged with each other, the engagement between the connecting portion and the one end side end is more reliable. A core cover can be attached to the base portion. In addition, the partition plate and the conductive wire partition portion partition the conductive wire wound in different winding regions, but the inner peripheral rib portion and the partition plate engage with each other so that the side edge is fitted in the inner peripheral groove, and the creeping surface A distance can be earned and the insulation between adjacent conducting wires can be measured more reliably.

  Further, the one end side rib portion is configured to have a protruding amount equal to the distance from one end of the connecting portion to the other end, and the one end side groove is formed to have a depth equal to the distance from one end of the connecting portion to the other end. Is preferred.

  According to such a configuration, the protruding amount of the one end side rib portion can be optimized, and the protruding amount from the one end surface of the one end side rib portion can be suppressed, so that the height of the coil component can be reduced.

  The conductive wire partitioning portion has a rib portion on the other end side that protrudes from the other end surface in the axial direction of the core cover to the other end side in the axial direction and extends in the radial direction. It is configured to be substantially equal to the distance from one end surface to one end in the axial direction of the conducting wire wound in the conducting wire winding region, and the protruding amount of the other end side rib portion is from the other end surface of the conducting wire winding region, It is preferable to be configured to be substantially equal to the distance to the other end in the axial direction of the conducting wire wound in the conducting wire winding region.

  According to such a configuration, the distance from one end side to the other end side of the core cover provided with the conductive wire partitioning portion can be shortened to the maximum, so that the height of the coil component can be reduced.

  The core cover is preferably formed in a shape in which one end side and the other end side are symmetrical in the axial direction.

  According to such a configuration, it is possible to adopt a structure in which the core cover has no front and back in the axial direction. Therefore, it is not necessary to consider the front and back of the core cover during manufacturing, and the manufacturing can be simplified.

  The partition plate has an end edge extending in a direction orthogonal to the extending direction at the front end in the extending direction extending into the through hole, and the other end in the axial direction of the end edge and the other end side rib portion. It is preferable that the part is configured to be located on the same plane.

  According to such a configuration, the partition plate is prevented from projecting to the other end side from the core cover, so that the coil component can be further reduced in height.

  In addition, at the location where the connecting portion is connected in the terminal block, a pair of hooking portions are provided side by side in the direction orthogonal to the axial direction and the connecting portion is sandwiched therebetween, and the core cover has a pair of hooking portions. It is preferable that a hooked portion to be hooked is provided.

  According to such a configuration, the core cover can be attached to the base portion in a state where the hooking portion and the hooked portion do not protrude from the coil component. In addition, by providing a latching portion at a location where the connecting portion of the terminal block is connected, the configuration in which the latching portion is latched to the latched portion and the engagement of the coupling portion to the one-end groove are mutually complemented. It is possible to increase the mounting strength of the core cover to the base portion.

  In addition, the base portion has the same number of connection portions connecting the plurality of terminal blocks as the plurality of terminal blocks, and each of the plurality of connection portions has an arc shape along the annular body of the core cover. Is preferred.

  According to such a configuration, the strength of the base portion can be increased. Further, since the connecting portion is disposed along the core cover, the core cover can be protected by the connecting portion.

  Moreover, it is preferable that the conducting wire partitioning portion has a shape that gradually becomes wider in the direction from the center of the annular body to the outside in a cross section orthogonal to the axial direction.

  According to such a structure, the insulation distance in the outer peripheral position of an annular body can be ensured reliably in a core cover.

  Further, the plurality of terminal blocks have a connecting portion to which the conducting wire is connected, and the plurality of conducting wires are connected to the connecting portion in the vicinity of both ends, and the end portion is electrically connected to the mounting substrate. It is preferable to use it as a mounting terminal to be connected.

  According to such a configuration, it is not necessary to newly provide a terminal pin or the like, and the structure of the coil component can be simplified.

  According to the coil component of the present invention, the height can be reduced.

The perspective view of the coil components which concern on embodiment of this invention. The perspective view of the base part of the coil components which concern on embodiment of this invention. The (a) top view of the core cover of the coil components which concerns on embodiment of this invention, (b) Front view, (c) Side view. Sectional drawing of the core cover and base part in alignment with the IV-IV line of FIG. The perspective view of the coil components which concern on the modification of embodiment of this invention.

  Hereinafter, a coil component according to an embodiment of the present invention will be described with reference to FIGS. A line filter 1 that is a coil component shown in FIG. 1 includes a base portion 2, a core 3, an annular core cover 4, a first conductor 5, and a second conductor 6. In the following description, the direction in which the central axis Z of the core cover 4 forming the annular body extends is defined as the axial direction, the circumference of the central axis Z is defined as the circumferential direction, and one end side in the axial direction is defined as the lower side and the other end side. Is described as the upper side.

  The base part 2 is made of resin, and as shown in FIG. 2, a pair of terminal blocks 21, 21, a pair of connection parts 24, 24, a connecting part 25, a partition plate 26, and a pair of latching parts. 27 and 27 are mainly provided. Further, the base portion 2 is configured to take the same shape when rotated by 180 ° around the central axis Z.

  The pair of terminal blocks 21 and 21 have the same shape, and are arranged at opposite positions with the central axis Z in between. Since it is the same shape, only one terminal block 21 will be described. The terminal block 21 includes a side wall portion 22 and a flat plate portion 23. The side wall portion 22 is constructed of a wall including an inner surface standing in the axial direction and having the same radius of curvature as a circular arc shape to be described later of the connection portion 24, and accommodates the core cover 4 in cooperation with the connection portion 24. A space 2a is formed. In addition, the connecting portion 25 is connected to a substantially central position in the circumferential direction of the inner surface of the side wall portion 22 and to a lower end position in the axial direction. The flat plate part 23 extends in a direction perpendicular to the axial direction from the upper end position of the side wall part 22 and away from the central axis, and is configured in a planar shape perpendicular to the axial direction. Moreover, it is the edge part of the extending direction from the side wall part 22 of the flat plate part 23, Comprising: In the vicinity of the both ends in the direction orthogonal to an axial direction and an extending direction, one end vicinity of the 1st conducting wire 5 and the 2nd conducting wire 6 A first connecting recess 23a and a second connecting recess 23b, which are connecting portions connected to the vicinity of the other end, are respectively formed. The first connecting recess 23a and the second connecting recess 23b are formed in a slit shape so as to pass through the upper surface and the lower surface of the flat plate portion 23 and are substantially parallel to the axial direction. The width of the position where 6 is held is formed to be slightly smaller than the outer shape of the first conducting wire 5 and the second conducting wire 6.

  The pair of connection portions 24 and 24 are interposed between the pair of terminal blocks 21 and 21, respectively, and connect one terminal block 21 and the other terminal block 21. Specifically, one connection portion 24 and the other connection portion 24 are connected to one end and the other end in the circumferential direction of one terminal block 21, respectively, and the other connection portion 24 is connected to one end and the other end in the circumferential direction of the other terminal block 21. The connection part 24 and the one connection part 24 are connected to each other. The connecting portion 24 has the same vertical width as that of the side wall portion 22 and is integrated with the side wall portion 22. The connecting portion 24 is formed in an arc shape centered on the central axis Z and cooperates with the terminal block 21 to cover the core cover 4. Storage space 2a is formed. As shown in FIGS. 2 and 4, the lower end edge of the connection portion 24 is configured to be located on the same plane as the lower end edge of the side wall portion 22. As shown in FIG. 2, a substantially annular rib 24 </ b> A that protrudes toward the central axis Z is provided in series at the lower end of the connection portion 24. One end and the other end in the circumferential direction of the rib 24 </ b> A extend to the side wall portion 22 of one terminal block 21 and the side wall portion 22 of another terminal block 21. By providing the rib 24A, the strength of the connecting portion 24 is increased and the rigidity of the base portion 2 is increased.

  The connecting portion 25 passes through a position intersecting with the central axis Z, extends in a direction orthogonal to the axial direction, is connected to one terminal block 21 and the other terminal block 21, and is orthogonal to the extending direction. The cross section is configured to be a rectangle having a long side in the axial direction. As shown in FIG. 4, the lower end edge of the connecting portion 25 is configured to be flush with the lower end edges of the side wall portion 22 and the connecting portion 24, and the distance from the lower end edge to the upper end edge (the connecting portion). 25 is defined to be substantially the same as the groove depth of a lower groove 42a (FIG. 3C), which will be described later. Further, in the connecting portion 25, the distance in the short side direction (hereinafter, defined as the width of the connecting portion 25) in the above-described cross section is configured to be substantially equal to the width of the lower groove 42a described later.

  The partition plate 26 extends upward from the upper end edge of the connecting portion 25 that is substantially in the center in the direction from one terminal block 21 to the other terminal block 21, and is configured integrally with the connecting portion 25. An edge 26A extending in the direction from one terminal block 21 to the other terminal block 21 and orthogonal to the extending direction is defined at the leading end of the partition plate 26 in the extending direction, and the edge 26A of the partition plate 26 is defined. A pair of side edges 26 </ b> B and 26 </ b> B are defined on an edge extending between the both ends of the connecting portion 25 and the upper end edge of the connecting portion 25.

  In the partition plate 26, the distance from one side edge 26 </ b> B to the other side edge 26 </ b> B is configured to be substantially the same as the diameter of a through-hole 4 a (FIG. 3A) described later of the core cover 4. As shown in FIG. 4, the distance from the upper end edge of the connecting portion 25, which is the base portion of the partition plate 26, to the end edge 26 </ b> A is from the lower surface 41 </ b> A described later of the core cover 4 to the upper end edge of the upper rib portion 42 </ b> B. It is comprised so that it may become substantially equal to distance. Further, the partition plate 26 is configured such that the plate thickness is equal to the width of the connecting portion 25.

  The pair of latching portions 27, 27 are provided on one terminal block 21 and the other terminal block 21, respectively, and have substantially the same shape, so that the latching portion 27 provided on the one latching portion 27. Only that will be described. The latching portion 27 is configured to include a latching claw 27A and a latching claw 27B arranged so as to contact the coupling portion 25 at one end side and the other end side in the circumferential direction with the coupling portion 25 interposed therebetween. . The latching claws 27A and the latching claws 27B are configured to protrude from the inner surface of the side wall portion 22 toward the central axis Z side and have downward surfaces facing downward in the axial direction.

  As shown in FIG. 1, the core 3 is an annular toroidal core having a substantially rectangular cross section (FIG. 4), and is accommodated in the core cover 4. In addition, since the core 3 is accommodated in the core cover 4, insulation is not particularly required, and any material of a conductor or an insulator may be used as a base material.

  As shown in FIGS. 3A to 3C, the core cover 4 is formed with a through hole 4 a at the center to form a substantially annular body, and includes a core housing portion 41 and a pair of conductor partition portions 42. And a pair of hooked portions 43, and the core housing portion 41 is configured to be split in the vertical direction such that the core housing portion 41 is split into two. The core cover 4 is configured so that the lower side and the upper side are symmetrical in the axial direction, and is configured to take the same shape when rotated 180 ° around the central axis Z.

  As shown in FIG. 3A, the core accommodating portion 41 is configured to be a ring-shaped body having a substantially rectangular cross section (FIG. 4), and a space capable of accommodating the core 3 is formed therein. Yes. Further, as shown in FIGS. 3A to 3C, a lower surface 41 </ b> A located on the lower end side, an upper surface 41 </ b> B located on the upper end side, and a through hole 4 a are defined on the surface of the core housing portion 41. An inner peripheral surface 41C that connects the lower surface 41A and the upper surface 41B and an outer peripheral surface 41D that connects the lower surface 41A and the upper surface 41B are defined. Further, the upper surface 41A to the outer peripheral surface 41D are divided into two in the circumferential direction by the pair of conductive wire partitions 42, 42, the first conductive wire winding region 4A is defined in one of the two divided regions, and the second conductive wire is defined in the other. A winding region 4B is defined.

  The pair of conductor partition portions 42 and 42 have the same shape, are located opposite to each other with the central axis Z of the core cover 4 interposed therebetween, and one conductor partition portion 42 is in the circumferential direction of the first conductor winding region 4A. One end side is separated from the other end in the circumferential direction of the second conducting wire winding region 4B, and the other conducting wire partitioning portion 42 is arranged around the other end in the circumferential direction of the first conducting wire winding region 4A and the second conducting wire winding region 4B. It arrange | positions so that the direction one end side may be divided. Since the pair of conductor-type ribs 42 and 42 have the same shape, only one conductor partition part 42 will be described. As shown in FIGS. 3B and 3C, the conductive wire partitioning portion 42 includes a lower rib portion 42A that protrudes downward from the lower surface 41A and an upper rib portion that protrudes upward from the upper surface 41B. As shown in FIG. 3A, a series of 42B and an inner peripheral rib portion 42C protruding from the inner peripheral surface 41C toward the central axis Z are configured. As shown in FIG. 3C, a lower groove 42a extending in the radial direction with respect to the central axis Z is formed in the lower rib portion 42A, and an upper groove extending in the radial direction with respect to the central axis Z is formed in the upper rib portion 42B. As shown in FIG. 3A, the inner circumferential rib portion 42C is formed with an inner circumferential groove 42c extending in the axial direction. The lower groove 42a, the inner circumferential groove 42c, and the upper groove 42b are It is a series.

  In the lower groove 42a and the upper groove 42b, the bottom surface of the groove is flush with the lower surface 41A and the upper surface 41B, respectively, and also in the inner circumferential groove 42c, the bottom surface of the groove is flush with the inner circumferential surface 41C. Yes. Further, the protruding amounts of the lower rib portion 42A and the upper rib portion 42B from the lower surface 41A and the upper surface 41B are configured to be equal to the height of the connecting portion 25. Therefore, the groove depths of the lower groove 42 a and the upper groove 42 b are equal to the height of the connecting portion 25. The lower rib portion 42A, the inner peripheral rib portion 42C, and the upper rib portion 42B are configured such that the widths of the lower groove 42a, the inner peripheral groove 42c, and the upper groove 42b are equal to the width of the connecting portion 25.

  Further, the upper rib portion 42B is shaped so as to gradually increase in the direction from the central axis Z toward the radially outward direction in a cross section orthogonal to the axial direction. Similarly, the lower rib portion 42A also has a shape. Shaped to be wide.

  As shown in the figure (b), the pair of hooked portions 43, 43 are provided on the outer peripheral surface 41D corresponding to one conductive wire partition portion 42 and the other conductive wire partition portion 42, respectively, and are substantially the same. In order to adopt the shape, only one hooked portion 43 will be described. The hooked portion 43 has a hooked claw 43A disposed at one end side and the other end side in the circumferential direction with the lower groove 42a in contact with the lower rib portion 42A at the lower end position of the outer peripheral surface 41D. It includes a hooked claw 43B. Each of the hooking claws 43A and the hooking claws 43B is configured to protrude from the outer peripheral surface 41D toward the anti-center axis Z side and have an upward surface facing the upper side in the axial direction. In addition, the hooked portion 43 includes a pseudo hooked portion 43C and a pseudo hooked portion 43D configured in a mirror shape through a plane orthogonal to the axial direction at the upper end position of the outer peripheral surface 41D. Since the core cover 4 has a vertically symmetrical shape as described above, it is not particularly used in the present embodiment, but such a configuration is adopted in consideration of convenience during manufacturing.

  The first conductor 5 and the second conductor 6 are both coated conductors coated with an insulator, and are wound around the first conductor winding region 4A and the second conductor winding region 4B, respectively, as shown in FIG. The coils 5A and 6A are formed by being rotated. In the coils 5A and 6A, the upper end and the lower end in the axial direction are substantially the same as the upper end edge of the upper rib portion 42B and the lower end edge of the lower rib portion 42A, respectively, or the upper end edge and the lower side of the upper rib portion 42B in the axial direction. It is wound so as to be located inward from the lower end edge of the rib portion 42A. Since the first conducting wire winding region 4A and the second conducting wire winding region 4B are partitioned by the pair of conducting wire partitioning portions 42, 42, the first conducting wire 5 wound around the first conducting wire winding region 4A and the first conducting wire winding region 4B are separated from each other. Contact with the second conductor 6 wound around the two-conductor winding region 4B is prevented, and a short circuit or the like can be prevented.

  In a state in which the core 3 is accommodated in the core accommodating portion 41 and the first conductor 5 and the second conductor 6 are wound around the first conductor winding region 4A and the second conductor winding region 4B to form the coils 5A and 5B. The core cover 4 is attached to the base portion 2. When mounting, the connecting portion 25 is accommodated in the lower grooves 42a and 42a of the pair of conductive wire partitions 42 and 42, and the side edges 26B and 26B of the partition plate 26 are stored in the inner peripheral grooves 42c and 42c. The core cover 4 is combined with the base portion 2 so as to be accommodated. Further, the pair of hooked portions 43, 43 of the core cover 4 get over the pair of hooking portions 27, 27 of the base portion 2, and the upper surfaces of the hooked claws 43A, 43B are placed on the hooking claws 27A, 27B. Make contact with the downward surface. By adopting such a configuration, the core cover 4 is prevented from dropping from the base portion 2. Further, when the lower groove 42a and the connecting portion 25 are engaged, and the inner peripheral groove 42c and the partition plate 26 are engaged, the wobbling of the core cover 4 with respect to the base portion 2 is suppressed, and the dropping is further suppressed. Can do.

  The both ends of the first conductor 5 and the both ends of the second conductor 6 are attached to the pair of terminal blocks 21 and 21 at the same time as or before and after the attachment of the core cover 4 to the base portion 2. Specifically, as shown in FIG. 1, the vicinity of one end of the first conductor 5 is inserted into the first connection recess 23a of one terminal block 21 adjacent to the first conductor winding region 4A, and the one end is flat. The other end is suspended from the flat plate portion 23 while the other end is inserted into the second connection recess 23b of the other terminal block 21 adjacent to the first conductor winding region 4A. Yes. Similarly, the vicinity of one end of the second conducting wire 6 is inserted into the first connection recess 23 a of the other terminal block 21, one end is suspended downward from the flat plate portion 23, and the vicinity of the other end is connected to the second connection of the one terminal block 21. The other end is suspended downward from the flat plate portion 23 by being inserted into the line recess 23b. Since the first connecting recess 23a and the second connecting recess 23b are narrower than the outer diameters of the first conducting wire 5 and the second conducting wire 6 as described above, the first conducting wire 5 and the second conducting wire 6 are simply connected to each other. The first conductor 5 and the second conductor 6 can be securely held by the terminal blocks 21 and 21 by being inserted into the first conductor recess 23a and the second conductor recess 23b.

  The core cover 4 is attached to the base portion 2, and the line filter 1 is completed in a state where the first conductor 5 and the second conductor 6 are connected to the terminal blocks 21 and 21. In the line filter 1, the core cover 4 is attached to the base portion 2 by housing the connecting portion 25 in the lower groove 42a of the lower rib portion 42A as described above. In this state, as shown in FIG. 4, at the leading edge in the protruding direction of the lower rib portion 42 </ b> A that is one end side end portion of the core cover 4 provided with the conducting wire partitioning portion 42 and one end side end portion of the base portion 2. Since the lower end edge of a certain connecting portion 25 is on the same plane, the one end of the line filter 1 and the one end of the core cover 4 can be on the same plane. Therefore, the thickness of the base portion 2 to which the core cover 4 is attached is not included in the upper back of the line filter 1, and the upper back of the line filter 1 can be determined by the upper back of the core cover 4. Can be reduced in height.

  Further, the line filter 1 adopts a configuration in which the inner peripheral side groove 42c of the inner peripheral rib portion 42C and the side edge 26B of the partition plate 26 are engaged when the core cover 4 is mounted on the base portion 2. In particular, since the distance from one side edge 26B of the partition plate 26 to the other side edge 26B is substantially equal to the diameter of the through hole 4a, the bottom surface of the groove is flush with the inner peripheral surface 41C, and the width of the groove is the partition plate 26. The inner circumferential side groove 42c, which is substantially equal to the thickness, and the partition plate 26 engage with each other in a state where there is no gap. Therefore, in combination with the engagement between the connecting portion 25 and the lower rib portion 42A of the conductive wire partitioning portion 42, the core cover 4 is securely attached to the base portion 2 by the engagement of the inner peripheral side groove 42c and the side edge 26B. Can be installed. Moreover, the partition plate 26 and the conducting wire partitioning part 42 partition the first conducting wire 5 and the second conducting wire 6 wound in different winding regions of the first conducting wire winding region 4A and the second conducting wire winding region 4B, respectively. However, the creeping distance between the first conductor 5 and the second conductor 6 because the inner rib 42C and the partition plate 26 are engaged so that there is no gap between the inner groove 42c and the side edge 26B. Can be obtained, and insulation between adjacent conductors can be achieved more reliably.

  Further, the protruding amount of the lower rib portion 42 </ b> A is optimized so as to be equal to the height of the connecting portion 25. Specifically, since it is configured to have a minimum protruding amount that can accommodate the connecting portion 25 in the lower groove 42a, the protruding amount from the lower surface 41A can be suppressed. Since the upper back of the line filter 1 is caused by the upper back of the core cover 4 as described above, the line filter 1 can be further reduced in height by adopting such a configuration.

  Further, since the core cover 4 has a symmetrical configuration in the vertical direction, it is not necessary to consider the top and bottom of the core cover 4 during manufacturing, and the manufacturing can be simplified. Further, since the upper rib portion 42B is also configured to take the same amount of protrusion as the lower rib portion 42A, the distance from the lower side to the upper side of the core cover 4 provided with the conductive wire partitioning portion 42 is minimized. be able to. Therefore, the line filter 1 can be further reduced in height.

  Further, as described above, the partition plate 26 is configured so that the distance from the connecting portion 25 to the end edge 26A is substantially equal to the distance from the lower surface 41A to the upper end edge of the upper rib portion 42B. As shown, the position of the edge 26A in the vertical direction is substantially equal to the upper edge of the upper rib portion 42B. Therefore, since the partition plate 26 is prevented from protruding above the core cover 4, the line filter 1 can be further reduced in height.

  Further, the latching portion 27 is arranged on one end side and the other end side in the circumferential direction with the coupling portion 25 interposed therebetween so as to contact the coupling portion 25, and the latched portion 43 is latched with the latching portion 27. By being configured, the core cover 4 can be attached to the base portion 2 in a state where the hooking portion 27 and the hooked portion 42 do not protrude from the line filter 1. Further, by providing a latching portion 27 at a location where the connecting portion 25 of the terminal block 21 is connected, the latching portion 27 is latched to the latched portion 42 and the engaging portion 25 is engaged in the lower groove 42a. The strength of mounting the core cover 4 on the base portion 2 can be increased.

  The base portion 2 includes a pair of connection portions 24 and 24 for connecting the pair of terminal blocks 21 and 21, and the strength of the base portion 2 can be increased by the connection portions 24 and 24. Moreover, since the connection parts 21 and 21 are arrange | positioned along the core cover 4, the core cover 4 can be protected by the connection parts 21 and 21. FIG.

  Moreover, since the conducting wire partition part 42 is shaped so as to gradually increase in the direction from the central axis Z to the outside as described above, the adjacent first conducting wires at the outer peripheral position of the annular body in the core cover 4. The insulation distance between 5 and the second conductor 6 can be ensured reliably. Furthermore, when the conducting wire partitioning portion 42 is formed in a wide shape, the outer peripheral surface 41D side of the lower rib 42A with which the hooked portion 43 is in contact is widened. As described above, the hooked portion 43 is configured to be in contact with the lower rib portion 42A on the outer peripheral surface 41D, but the position where the hooked portion 43 can be disposed by making the contacted portion wider. Thus, the degree of freedom of installation of the hooked portion 43 can be increased. Moreover, the to-be-latched part 43 can be enlarged.

  Further, both ends of the first conducting wire 6 and the second conducting wire 6 are configured to hang down from the flat plate portion 23, respectively. According to such a configuration, each of the first conducting wire 6 and the second conducting wire 6 is configured. Both ends can be used as terminal pins that are electrically connected to a substrate (not shown). Therefore, it is not necessary to newly provide a terminal pin or the like, and the structure of the line filter 1 can be simplified.

  The coil component according to the present invention is not limited to the above-described embodiment, and various improvements and modifications can be made within the scope described in the claims. For example, in the present embodiment, the case where two conductive wires are used has been described, but not limited to this, three conductive wires may be used. In this case, the ring-shaped core cover may be divided into three equal parts in the circumferential direction to form a coil, and the conductive wire partitioning portion and the partition plate may be arranged between the coils.

  Moreover, the line filter 101 using the base part 102 as shown in FIG. 5 may be used. In the configuration shown in FIG. 5, the configuration related to the core cover 4, the first conducting wire 5, and the second conducting wire 6 adopts the same configuration as the core cover 4 etc. shown in FIG. . In the base unit 102, the basic configuration is the same as that of the base unit 2 shown in FIG. In the pair of terminal blocks 121 of the base portion 102, the flat plate portion 123 of the one terminal block 121 is in the vicinity of the first connection recess portion 123 a and between the first connection recess portion 123 a and the conductor partition portion 41. A first restricting member 123A that restricts the upward movement of the one end portion of the first conducting wire 5 is provided, in the vicinity of the second connecting recess portion 123b, and in the vicinity of the second connecting recess portion 123a and the conducting wire partitioning portion 41. Is provided with a second restricting member 123B that restricts the upward movement of the other end portion of the second conductor 6.

  Specifically, both the first restricting member 123A and the second restricting portion 123B include arm portions extending in parallel with the flat plate portion 123, and the first conducting wire 5 and the second conducting wire 6 are the respective arms. Wiring is made so as to pass between the flat plate portion 123 and the flat plate portion 123, and thereafter connected to the first connecting recess portion 123a and the second connecting recess portion 123b.

  In addition, the edge 126A of the partition plate 126 is configured to include a plane that is parallel to the flat plate portion 123 and wider than the plate thickness of the partition plate 126, and marking or the like is possible on this plane.

  As described above, the end portions of the first conducting wire 5 and the second conducting wire 6 connected by the first connecting recess portion 123a and the second connecting recess portion 123b are suspended from the flat plate portion 123 to be terminals. It plays a role as a pin. However, the end portions of the first conducting wire 5 and the second conducting wire 6 that serve as terminal pins are merely inserted into the first connecting recess portion 123a and the second connecting recess portion 123b. Since excessive restraint is not received, there is a possibility that the first connection recess 123a and the second connection recess 123b may come off during mounting on a substrate (not shown). However, since the upward movement of the respective ends of the first conductor 5 and the second conductor 6 is restricted by the first restricting member 123A and the second restricting member 123B, the first conductor 5 and the second conductor 6 are controlled. Each end of the can function reliably as a terminal pin.

DESCRIPTION OF SYMBOLS 1 ... Line filter 2 ... Base part 2a ... Accommodating space 3 ... Core 4 ... Core cover 4A ... First conductor winding area 4B ... Second conductor winding area 4a ... Through hole 5 ... 1st conducting wire 5A ·· Coil 6 · · 2nd conducting wire 6A · · Coil 21 · · Terminal block 22 · · Side wall portion 23 · · Flat plate portion 23a · · First connection recess 23b · · Second connection recess 24 ·· Connection portion 24A · · Rib 25 · · Connection portion 26 · · Partition plate 26A · · Edge 26B · · Side edge 27 · · Latch 27A · · Latch claw 27B · · Claw 41 · · · Core housing portion 41A ... Lower surface 41B ... Upper surface 41C ... Inner circumferential surface 41D ... Outer circumferential surface 42 ... Conductor partition 42A ... Lower rib portion 42B ... Upper rib portion 42C ... Inner circumferential rib portion 42a・ Lower groove 42b ・ ・ Upper groove 42c ・ ・ Inner circumferential groove 43 ・ ・ Hook part 43A ・ ・Pawl 43B ·· the pawl 43C ·· pseudo the hook portion 43D ·· pseudo the hook portion

Claims (11)

Toroidal core,
A core cover that accommodates the toroidal core and has a through-hole to form a substantially annular body;
A plurality of conductive wires wound around the core cover to form coils, respectively;
A plurality of terminal blocks to which the respective ends of the plurality of conducting wires are coupled, and a base unit to which the core cover is attached, the coupling unit connecting the terminal blocks to each other,
The core cover has a conductive wire partition portion configured to include one end side rib portion that protrudes from one end surface in the axial direction of the annular body to one end side in the axial direction and extends in the radial direction of the annular body. A conductive wire winding region in which one conductive wire is wound between the adjacent conductive wire partitioning portions is defined,
The one end side rib part is formed with one end side groove extending in the radial direction and engaging with the connecting part,
The connecting portion has one end edge on one end side in the axial direction and the other end edge on the other end side in the axial direction, and the other end edge is received in the groove on the one end side and engages with the core cover. A partition plate extending in the through hole and disposed at a position that divides the plurality of conductor winding regions in the through hole in cooperation with the conductor partition portion is provided at the other end edge. Coil parts characterized by   The one end edge constitutes one end side end portion of the base portion and is located substantially on the same plane as the end portion in the protruding direction of the one end side rib portion, and the distance from the one end edge to the other end edge is the one end edge The coil component according to claim 1, wherein the coil component is configured to be substantially the same as or shorter than a depth of the side groove. Each of the conductive wire partitioning portions has an inner peripheral rib portion that protrudes from the inner peripheral surface defining the through hole of the core cover toward the center of the annular body and extends in the axial direction on the inner peripheral surface,
The partition plate has the same number of side edges as the number of the conductive wire partitioning portions that engage with the inner circumferential rib portion extending in the extending direction extending into the through hole,
The inner circumferential rib portion is formed with an inner circumferential groove that extends in the axial direction and engages with the side edge of the partition plate.
Each of the terminal blocks has a pair of connecting portions disposed on one side of the conducting wire winding region and on the other side of the conducting wire winding region with respect to the conducting wire partition portion,
One of the conductors is wound around one of the conductor winding regions, and the joint located on one conductor winding region side of the one terminal block adjacent to the one conductor winding region. Both ends are connected to the wire portion and the connecting portion located on the one winding region side of the other terminal block adjacent to the one conductor winding region, respectively. The coil component according to claim 1.   The one end side rib portion is configured to have a protruding amount equal to the distance from the one end to the other end of the connecting portion, and the one end side groove is set to the distance from the one end to the other end of the connecting portion. The coil component according to any one of claims 1 to 3, wherein the coil component is formed to have an equal depth. The conductive wire partitioning portion has a rib portion on the other end side that protrudes from the other end surface in the axial direction of the core cover to the other end side in the axial direction and extends in the radial direction,
The protruding amount of the one end side rib portion is configured to be substantially equal to the distance from the one end surface of the conductor winding region to one end in the axial direction of the conductor wound around the conductor winding region. The protruding amount of the other end side rib portion is substantially equal to the distance from the other end face of the conductor winding region to the other end in the axial direction of the conductor wound around the conductor winding region. It is comprised, The coil component as described in any one of Claims 1-4 characterized by the above-mentioned.   The coil component according to claim 5, wherein the core cover is formed in a shape in which one end side and the other end side are symmetrical in the axial direction. The partition plate has an end edge extending in a direction orthogonal to the extending direction at a distal end in the extending direction extending into the through hole,
7. The structure according to claim 5, wherein the end edge and the end portion on the other end side in the axial direction of the rib portion on the other end side are configured to be located on the same plane. The coil component described. In the terminal block where the connecting portion is connected, a pair of latching portions are provided side by side in the direction perpendicular to the axial direction with the connecting portion interposed therebetween,
The coil component according to any one of claims 1 to 7, wherein the core cover is provided with a hooked portion on which the pair of hooking portions are hooked. The base portion has the same number of connection portions that connect the plurality of terminal blocks as the plurality of terminal blocks,
The coil component according to any one of claims 1 to 8, wherein each of the plurality of connecting portions has an arc shape along the annular body of the core cover.   10. The conductive wire partitioning portion according to claim 1, wherein the conductive wire partitioning portion has a shape that gradually widens in a direction from the center of the annular body to the outside in a cross section orthogonal to the axial direction. The coil component according to one. The plurality of terminal blocks have a connecting portion to which the conducting wire is connected,
11. The plurality of conductive wires are used as mounting terminals that are respectively connected to the connecting portion at both ends and electrically connected to the mounting substrate at the endmost portion. The coil component according to any one of the above.

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