JPH0563014U - Insulation case - Google Patents

Abstract

(57) [Abstract] [Purpose] The structure of the fixing part of the case part and the base part of the insulating case for the toroidal coil has been improved so that it can be easily assembled, can be removed and reused, and is reliable. Provide an insulating case that can be fixed. [Structure] The structure of each connecting portion for connecting and fixing the case portion 1 and the base portion 7 of an insulating case used for a toroidal coil is projected vertically at the lower end of a column 5 integrally formed with the case portion 1. A locking projection (locking piece 6) provided with is provided, and an arc-shaped one end is closed to fit the locking piece 6 to the base portion 7. A locking hole 16 is formed in the lower center thereof, and the locking piece 6 is fitted into the locking cover 8 so that the lower projection of the locking piece 6 is fitted and fixed in the locking hole 16 of the base portion 7. Insulation case.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of an insulating case forming a toroidal coil.

[0002]

[Prior Art]

 Conventionally, this type of insulating case is made of insulating resin as shown in FIGS. 4 and 5, and adjusts the distance between the case portion 1 for housing the annular magnetic core and the lead wire of the toroidal coil, and fixes it to the substrate. The base portion 13 for fixing the case portion 1 and the engaging portion for integrally connecting and fixing the base portion 13 to the base portion 13 are partially fitted into the base portion 13 and the supporting column 12 for integrally fixing the case portion 1 and the base portion 13 It formed a toroidal coil by insulating the annular magnetic core from the winding. FIG. 4 is an exploded perspective view showing the assembly of the toroidal coil using the conventional insulating case, and FIG. 5 is an exterior perspective view of the toroidal coil completed using the conventional insulating case. In the conventional toroidal coil, as shown in FIG. 4, the engaging portions having serrated irregularities are provided on the base portion 13 and the supporting column 12, and the engaging portions are engaged and fixed as shown in FIG. However, in such a conventional structure, even a slight clearance between each unevenness causes looseness in the fitting portion, making it unstable and unreliable, and if it is made sufficiently tight, assembly becomes difficult. However, there is a problem that it becomes difficult to remove the part when it needs to be replaced due to a malfunction of the part and it cannot be reused.

[0003]

[Problems to be solved by the device]

 The object of the present invention is to solve the above-mentioned problems and improve the structure of the case part of the insulating case for the toroidal coil and the fixing part of the base part for easy assembly, removal and reuse. The purpose is to provide an insulating case that can be fixed with reliability.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention improves the structure of each connecting portion for connecting and fixing the case portion and the base portion of the insulating case used for the toroidal coil, and is integrally formed with the case portion. In addition, the lower end of the support column is provided with a locking projection (locking piece) with projections on the top and bottom, and the base is fitted with the locking piece, and the one end is closed in an arc shape. The locking cover and a locking hole are formed in the lower center of the locking cover, the locking piece is fitted into the locking cover, and the lower projection of the locking piece is fitted into the locking hole of the base portion to be fixed. It is an insulating case.

That is, the present invention is made of an insulating resin and is formed integrally with an outer cylinder of a case portion for accommodating a magnetic core including a bottomed double cylinder and an annular plate lid. The case, a base portion provided with a lead wire guide for adjusting the arrangement of lead wires at the ends of the windings wound on the case portion, and a base portion provided with an engaging portion for engaging with the support pillar of the case portion. The ring magnetic core is housed in the section, the winding is applied to the outside, and the lead wire at the end of the winding is inserted into the lead wire guide of the base section to adjust the position of the lead wire, and then the pole and the base section. A case in which a plurality of locking pieces are provided at opposing positions of the outer peripheral lower end of the support pillar and engaging projections are provided on the upper and lower surfaces of the support case in the insulating case that is fitted with the engaging portion to form the toroidal coil. And the middle of the lead wire guide in the center of the A locking cover that is arranged in an arc shape at a position corresponding to the stopper and has one end closed, and a locking cover that is shaped like an eaves and that is located at the central portion of the cover and that corresponds to the locking projection. It is an insulating case characterized by a structure including a base portion provided with a stop hole.

[0009]

[Action]

 From the simple fitting of the structure of the engaging part, the lower projection is locked by pushing the upper and lower projections provided on the locking piece of the case part while being suppressed by the elasticity of the locking cover of the base part. The locking piece is pressed against the base by fitting it into the hole and pressing the upper protrusion with the locking cover, so it is stably fixed. In addition, since it can be attached and detached by rotating the whole while lightly lifting it against the pressure of the locking cover, it is easy and the parts can be reused.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view illustrating the assembly of a toroidal coil using an insulating case according to an embodiment of the present invention. FIG. 1 (a) is a disassembled case portion and a base portion in which a magnetic core is housed before assembly. Fig. 1 (b) shows the insulating case in which the case part is assembled to the base part, and Fig. 1 (c) shows the case where the lead wire is fixed to the base part by winding. The completed state is shown by connecting and fixing the base part. FIG. 2 is an external perspective view showing the vicinity of a locking piece provided on a column of the case portion of the insulating case shown in FIG. FIG. 3 is an external perspective view showing the vicinity of a locking cover provided on the base portion of the insulating case shown in FIG.

As shown in FIG. 1, a case portion 1 forming a coil is made of an insulating resin and has an outer cylinder 2 and an inner cylinder which can accommodate an annular magnetic core having an outer diameter of 15 mm, an inner diameter of 9 mm and a height of 4 mm. 4 are arranged concentrically and one end is closed, and a column-shaped support column 5 is integrally formed on the outer periphery of the bottomed double-cylindrical storage part. As shown in the enlarged view, the locking piece 6 having the projections 14 and 15 of about 1 mm on the upper and lower surfaces is machined, and is composed of an annular plate that covers the magnetic core in the storage part and covers the back. The base portion 7 has a rectangular plate shape, and is provided with holes for lead wire guides 9 at both ends of the center thereof for adjusting the positions of the lead wires 11 to be constant. At the center of the base portion 7, two locking covers 8 are formed in an arc shape at positions corresponding to the positions of the locking pieces 6 provided on the support column 5. The locking covers 8 are formed as shown in FIG. It has a V-shaped eaves, one end of which is closed, and a locking hole 16 is formed in the central base portion 7 of the locking cover 8 at a position corresponding to the lower protrusion 15 provided on the locking piece 6 of the column. It

FIG. 1B shows an insulating case in which the case part 1 and the base part 7 are fitted and fixed to the locking cover 8 while the locking piece 6 is rotated. To assemble the toroidal coil, as shown in Fig. 1 (a), insert a ring-shaped magnetic core with an outer diameter of about 15 mm into the case 1, stack the ring-shaped lid 3 on the outside, and apply the winding 10 to the outer circumference. , The lead wire 11 at the end thereof is inserted into the lead wire guide 9 of the base portion 7 as shown in FIG. 1C, and then the locking piece 6 at the lower end of the column is rotated on the locking cover 8 of the base portion 7. Fit it, and drop the projection 15 below the locking piece 6 into the locking hole 16 of the base portion 7. Since the height from the lower surface of the locking piece 6 to the tip of the upper protrusion 14 is set to be slightly larger than the height of the eaves of the locking cover 8, the locking piece 6 is attached to the base by the locking cover 8. It is pressed and fixed. The case can be removed by lifting the case and turning it in the opposite direction. As described above, the toroidal coil was easily assembled and removed.

[0013]

[Effect of the device]

 As described above, according to the present invention, the toroidal coil can be easily and securely assembled, the assembled coil is not loosened, and the reassembling work can be easily performed, thereby providing a reliable and economical insulating case. it can.

[Brief description of drawings]

FIG. 1 is an external perspective view illustrating the assembly of a coil using an insulating case according to an embodiment of the present invention, and FIG. 1A is a disassembled case portion and a base portion that house a magnetic core before assembly. Fig. 1 (b) shows an insulating case in which the case part is assembled to the base part, and Fig. 1 (c) shows a winding.
The state where the lead wire is fixed to the base portion and the case portion is connected and fixed to the base portion is completed.

FIG. 2 is an external perspective view showing the vicinity of a locking piece provided on a column of the case portion of the insulating case shown in FIG.

FIG. 3 is an external perspective view showing the vicinity of a locking cover provided on the base portion of the insulating case shown in FIG.

FIG. 4 is an exploded perspective view illustrating the assembly of a toroidal coil using a conventional insulating case.

FIG. 5 is an external perspective view of a toroidal coil using a conventional insulating case.

[Explanation of symbols]

 1 Case Part 2 Outer Cylinder 3 Lid 4 Inner Cylinder 5 Support 6 Locking Piece 7 Base 8 Locking Cover 9 Lead Wire Guide 10 Winding 11 Lead Wire 12 Support 13 Base 14 Protrusion 15 Protrusion 16 Locking Hole

Claims (1)

[Scope of utility model registration request] 1. A case portion which is made of an insulating resin and which houses a magnetic core composed of a bottomed double cylinder and a lid of an annular plate, and a pillar integrally formed on the outer side of the outer cylinder of the case portion. A lead wire guide for arranging the arrangement of lead wires at the ends of the windings wound on the case portion, and a base portion provided with an engaging portion that engages with a pillar of the case portion, and an annular magnetic core is attached to the case. After storing, winding is applied to the outside, the lead wire at the end of the winding is inserted into the lead wire guide of the base part to adjust the position of the lead wire, and then the support post and the engaging part of the base part are fitted together. In an insulating case forming a toroidal coil, a case portion provided at a position opposite to the lower end of the outer periphery of the support column, in which a plurality of locking pieces provided with locking projections on the upper and lower surfaces are provided on the support column,
In the center of the base portion, in the middle of the lead wire guide, is arranged in a circular arc shape at a position corresponding to the locking piece, and one end is closed, and a "shaped eave-shaped locking cover, and in the central portion of the cover, An insulating case characterized by a structure including a base portion provided with a locking hole at a position corresponding to the locking projection.