JPH0553216U - Choke coil with terminal block - Google Patents

Abstract

(57) [Abstract] [Purpose] A toroidal choke coil with the coil placed horizontally is fixed on an insulating terminal block without using an adhesive. [Structure] An even number of assembly columns 2 are integrally provided in a peripheral portion of an insulating terminal block 1 symmetrically about a center point. The mounting column 2 has a plurality of engaging teeth 4 in the middle thereof, and the circular insulating top plate 5 has the engaging holes 6 formed in an array corresponding to the mounting column. A locking claw 7 is formed on the inner surface of the engaging hole 6 and the toroidal choke coil 8 is placed concentrically on the insulating terminal block 1 and the mounting column 2 is inserted into the engaging hole 6 to circularly insulate the toroidal choke coil. The top plate is brought into contact with the engaging teeth and the locking claws.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention is a choke coil with a terminal block, in which a choke coil for electromagnetic noise prevention, in which a toroidal core made of soft magnetic material is wound and the end of the winding is pulled out in the axial direction of the toroidal core, is fixed to the terminal block. Is related to the structure of.

[0002]

[Prior Art]

 A toroidal choke coil of horizontal type in which a toroidal core (hereinafter referred to as the core) is housed in a core insulation case, the winding is wound from above the core insulation case, and the ends of the winding are pulled out in the axial direction of the core However, it is difficult to mount it on the board because it cannot be placed on the board stably as it is and the lead wires are not aligned, so fix the coil on the insulated terminal block with an adhesive and make the required arrangement on the terminal block. It had a structure in which a lead wire was inserted into the through hole formed in the above.

[0003]

[Problems to be solved by the device]

 The above-mentioned conventional choke coil with a terminal block (hereinafter referred to as a coil) is difficult to handle the adhesive, the solidification time of the adhesive is long, it cannot be efficiently manufactured, and the coil is further inclined. There are many cases such as misalignment or excessive adhesion of adhesive, resulting in defective products, and peeling of the coil from the terminal block when external force is applied to the coil due to insufficient amount of adhesive applied. There was a drawback.

[0004]

[Means for Solving the Problems]

 According to the present invention, a plurality of mounting columns are integrally provided on the periphery of the insulating terminal block in a centrally symmetrical manner, the coil is placed concentrically on the terminal block, and the circular insulating top plate is placed on the coil to mount the mounting column. It is a choke coil with a terminal block which is inserted into an engaging hole of a top plate and engages an engaging tooth of an assembly column with a locking claw of an engaging hole.

That is, according to the present invention, a toroidal choke coil is concentrically and laterally arranged on an insulating terminal block in which a plurality of mounting columns having a plurality of engaging teeth are integrally provided in a peripheral portion in a centrally symmetrical manner. Pull out the end of the winding below the base and assemble the engaging holes with locking claws on the inner surface. Insert the engaging holes of the circular insulating top plate formed in the array corresponding to the column into the assembled column. It is a choke coil with a terminal block that is locked and brought into contact with the choke coil.

[0006]

[Action]

 The mounting teeth of the assembly terminal of the insulating terminal block engage the locking claws of the engaging holes to hold the top plate. The terminal block and top plate hold the coil.

[0007]

【Example】

 FIG. 1 is an exploded perspective view showing a first embodiment of a choke coil with a terminal block according to the present invention. The insulating terminal block 1 is an insulating resin disk having a diameter sufficiently larger than the outer diameter of the toroidal choke coil 8 (the winding is not shown). The assembly columns 2 are integrally provided, and the through holes 3 are formed on both sides of the assembly columns 2 at required intervals. A plurality of downward engaging teeth 4 having a saw-tooth cross-section are provided on the upper portion of the outer surface of the assembly column 2. The circular insulating top plate (hereinafter referred to as a top plate) 5 is an insulating resin disk having the same diameter as the terminal block 1. The top plate 5 is formed with a square engagement hole 6 at a position corresponding to the assembly column 2, and a locking claw 7 (a stepped portion in the figure) is integrally formed on the lower portion of the inner wall on the outer peripheral side of the engagement hole 6. It is provided in. When the choke coil 8 is a common mode choke coil having a central partition plate 9 and a partition 10 as shown in the figure, first, the coil 8 is concentrically mounted on the terminal block 1 and the partition 10 is assembled to the pillar 2. The windings (not shown) are arranged so as to face each other, and the ends of the windings (not shown) are inserted into the through holes 3 and pulled out downward. Next, the assembly column 2 is inserted into the engaging hole 6 of the top plate 5, and the top plate 5 is evenly pushed down until it comes into contact with the coil 8 to engage the engaging teeth 4 and the engaging claws 7 and to engage the top plate 5. To the mounting pillar 2.

FIG. 2 is a front view showing a part of the choke coil with a terminal block assembled in this manner in a vertical section. Since the winding of the common mode choke coil is usually not higher than that of the partition board 10, the top board 5 is in surface contact with the central partition board 9 and the partition board 10 so that the coil 8 can be held. If the top plate 5 does not come into contact with the coil 8 horizontally and cannot be locked, turn the top plate 5 upside down or bend the top plate 5 in the central part or upward and lock it on the mounting column 2. Then, the top plate 5 is brought into line contact with both outer peripheral edges of the partition 10 evenly, so that the coil 8 can be reliably held. Further, in the case of a choke coil whose winding is higher than that of the partition table 10 or a choke coil which is compatible with normal mode electromagnetic noise without the central partition plate 9 and partition table 10, elastic foam discs are placed above and below the coil. You may let me.

FIG. 3 is an exploded perspective view showing another embodiment of the insulating terminal block and the circular insulating top plate used in the present invention. The terminal block 11 is one in which an assembly column 12 having a semicircular vertical groove 13 connected to the through hole 3 is integrally provided at four places of the through hole 3 shown in FIG. Engaging teeth 4 are provided. The top plate 14 is formed with four engaging holes 6 corresponding to the mounting columns 12. By arranging the choke coil 8 concentrically with the terminal block 11, the coil 8 can be held by the top plate 14 and the terminal block 11 since the four mounting columns 12 are provided regardless of the orientation of the partition table 10. The terminal block 11 and the top plate 14 which are easily inserted into the through holes 3 with the end portions of the windings guided by the vertical grooves 13 can firmly hold any toroidal choke coil provided with any winding.

[0010]

[Effect of the device]

 Since the present invention has the above-mentioned configuration, it is possible to assemble efficiently, reduce the defective rate, improve the reliability by insulating the upper part of the winding with the top plate, and avoid damaging the winding. And, there is an effect that it can be automatically mounted.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a choke coil with a terminal block of the present invention, omitting windings of a toroidal choke coil.

FIG. 2 is a partial vertical cross-sectional front view showing the toroidal choke coil without the winding of the assembled choke coil with a terminal block according to the present invention.

FIG. 3 is an exploded perspective view showing another embodiment of the terminal block and the top plate used in the choke coil with the terminal block of the present invention.

[Explanation of symbols]

 1, 11 Insulated terminal block 2, 12 Assembly column 3 Through hole 4 Engaging tooth 5, 14 Circular insulating top plate 6 Engaging hole 7 Engaging claw 8 Toroidal choke coil 9 Central partition plate 10 Partition block 13 Vertical groove

Claims (1)

[Scope of utility model registration request] 1. A toroidal choke coil is placed concentrically and laterally on an insulating terminal block integrally provided with a plurality of assembly pillars having a plurality of engaging teeth in a peripheral portion so as to be centered symmetrically and below the terminal block. Pull out the end of the winding, and insert the engagement holes into the assembly pillars and lock them on the circular insulating top plate in which the engagement holes with locking claws on the inner surface are formed in an array corresponding to the assembly pillars. A choke coil with a terminal block that comes into contact with the choke coil.