JPH0559820U - Bobbins - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Obtaining a thin bobbin that supports different types of cores, both vertical and horizontal types. [Constitution] A cylindrical core 1 made of an insulating material is provided with collars 2 on both end surfaces thereof.
A plurality of pin terminals 3 are planted at one end of the collar 2, the tubular core 1 has a rectangular cross-section, and the long side is parallel to the mounting surface of the bobbin. The guide portion 5 for restricting the looseness of the magnetic core inserted in the cylindrical winding core 1 is formed in the vertical direction and the horizontal direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a UU type magnetic core, an EI type magnetic core, or a bobbin into which the EE type magnetic core can be inserted vertically or horizontally.

[0002]

[Prior Art]

 Conventionally, winding parts such as transformers and coils have been constructed by combining an insulating bobbin having a tubular core with a magnetic core of UU type, EI type, EE type, etc., and winding the coil around the tubular core. , The magnetic core was inserted into the tubular core. For these winding parts, a bobbin was designed according to the shape of the magnetic core used and the insertion direction of the magnetic core. ing. These are Jikken 3-38818 or Jikoku 3-79929. FIG. 8 shows a perspective view of this conventional example, and FIG. 9 shows a front view thereof. This bobbin 81 has flanges 83 at both ends of a cylindrical winding core 82, and pin terminals 84 are planted below the flange 83, and when the magnetic core is inserted into the flange 83, the free movement of the magnetic core is restricted. The guide portion 85 is formed in the up-down direction and the left-right direction. The bobbin 81 has been used by inserting the U U type magnetic core 86 into a vertical type or a horizontal type.

[0003]

[Problems to be solved by the device]

 Since the conventional vertical and horizontal bobbins are both vertical and horizontal with the same magnetic core, the cross-sectional shape of the magnetic core leg and the tubular core of the bobbin should be the same for both vertical and horizontal types. The cross-sectional shape was square. However, there is a strong demand for downsizing, particularly thinning, of the coil, transformer and other winding parts used in this bobbin. It was difficult for conventional bobbins to cope with this reduction in thickness. It is an object of the present invention to provide a bobbin that is compatible with different types of magnetic cores, is compatible with both vertical and horizontal types, and has a reduced thickness.

[0004]

[Means for Solving the Problems]

 The present invention relates to a bobbin having a flange on each end surface of a cylindrical core made of an insulating material, wherein a plurality of pin terminals are planted at one end of the flange, and the cylindrical core has a rectangular cross section. In addition, the long side is parallel to the mounting surface of the bobbin, and the guide portion for restricting the looseness of the magnetic core inserted into the cylindrical core is formed in the vertical direction and the horizontal direction.

[0005]

【Example】

 FIG. 1 is a front view and FIG. 2 is a perspective view of an embodiment according to the present invention. In this embodiment, a flange 2 is provided at both ends of a cylindrical winding core 1, and a protrusion 4 having a pin terminal 3 is implanted at one end of the flange 2, and a guide portion 5 for restricting the magnetic core from moving. Are formed in the up-down direction and the left-right direction, and the cylindrical core 1 has a rectangular cross-section. FIG. 3 shows a front view of a case where a winding component having a vertical structure is formed by using this bobbin. In this example, a UU type magnetic core 7 is used, and the leg portion of the UU type magnetic core 7 is inserted into the through hole 6 in the tubular core of the bobbin. In this case, since the shape of the magnetic core is long in the horizontal direction, it is possible to reduce the thickness. Fig. 4 shows a front view of a case where a horizontal type winding component is constructed using this bobbin. In this example, an EE type magnetic core 8 that matches the rectangular shape of the tubular winding core 1 is used. In this case, if a horizontal UU-type magnetic core that fits the rectangular shape of the cylindrical winding core 1 is formed, the winding component becomes extremely unbalanced. However, by using the EE-type magnetic core 8 as described above, We were able to construct a well-balanced winding component. A front view of another embodiment according to the present invention is shown in FIG. In this embodiment, a flange 12 is provided at each end of a cylindrical core having a rectangular through hole 11, and a protrusion 14 having a pin terminal 13 is provided at one end of the flange 12, and A guide portion 15 that restricts the movement is formed in the upper and lower directions and the left and right directions. FIG. 6 shows a front view of a case where a winding component having a vertical structure is formed by using this bobbin. In this example, the UU type magnetic core 16 is used, and the leg portion of the UU type magnetic core 16 has a rectangular cross-sectional shape that is long in the horizontal direction, so that the thinning is achieved.

Further, FIG. 7 shows a front view of a case where a horizontal type winding component is formed by using this bobbin. In this example, the center leg 18 has a rectangular cross section, and the EE type magnetic core in which the height of the outer leg 17 is higher than the height of the center leg 18 is used. For this reason, it was possible to construct a thin and only small-sized winding component. Of course, the guide portion 15 of the bobbin is arranged at a position where the free movement of the magnetic core can be restricted regardless of whether it is the vertical type or the horizontal type.

[0007]

[Effect of the device]

 According to the present invention, the bobbin can be applied to different types of magnetic cores and can be used in both vertical and horizontal types, and can be made thin and compact, and the die cost of the bobbin can be reduced. It is also possible to reduce the manufacturing cost.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment according to the present invention.

FIG. 2 is a perspective view of an embodiment according to the present invention.

FIG. 3 is a front view of a winding component having a vertical structure using an embodiment according to the present invention.

FIG. 4 is a front view of a winding component having a horizontal structure using an embodiment according to the present invention.

FIG. 5 is a front view of another embodiment according to the present invention.

FIG. 6 is a front view of a winding component having a vertical structure according to another embodiment of the present invention.

FIG. 7 is a front view of a winding component having a horizontal structure using another embodiment according to the present invention.

FIG. 8 is a perspective view of a conventional example.

FIG. 9 is a front view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical core 2, 12 Tsuba 3, 13 Pin terminal 4, 14 Projection part 5, 15 Guide part 6 Through hole 7, 16 UU type magnetic core 8 EE type magnetic core 11 Through hole 17 Outer leg 18 Center leg

Claims (1)

[Scope of utility model registration request] 1. A bobbin having flanges on both end surfaces of a tubular core made of an insulating material, wherein a plurality of pin terminals are planted at one end of the collar, and the tubular core has a rectangular cross section. And the long side is parallel to the mounting surface of the bobbin, and the guide portion for restricting the free movement of the magnetic core inserted into the tubular core is formed in the vertical direction and the horizontal direction. Bobbin.