Surface installation inductor

A surface mount type, inductor technology, applied in the direction of transformer/inductor core, transformer/inductor coil/winding/connection, etc., can solve the problems of equipment influence, leakage magnetic flux, etc., to improve inductance value and position accuracy , Workability improvement effect

Inactive Publication Date: 2007-04-04
TOKYO PARTS IND CO LTD
View PDF1 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the T-shaped core is viewed from above, leakage magnetic flux will be generated from the gap and affect surrounding equipment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Surface installation inductor
  • Surface installation inductor
  • Surface installation inductor

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0036] As shown in FIGS. 1 to 4 , the surface-mounted inductor of this embodiment is composed of the following parts: a cylindrical core 1 whose bottom surface is approximately square, and has a cylindrical magnetic core part 11 and an outer wall 12 in the center; The coil 2 is fitted on the magnetic core part 11 of the cylindrical core 1; the electrode 3 is arranged on the outer peripheral surface of the cylindrical core 1 and is electrically connected with the flat coil 2; The barrel core 1 is closed.

[0037] The cylindrical core 1 is made of a ferrite material, and has a substantially square bottom surface, a columnar core portion 11 at the center, and an outer wall 12 integrally erected with the bottom surface. Between the core part 11 and the outer wall 12, a coil housing part 13 for housing the flat coil 2 is provided. Moreover, the coil housing part 13 has the bottom surface part 13a which arrange|positions the bottom surface of the flat coil 2 wound.

[0038] In add...

no. 2 Embodiment approach

[0056] In the surface mount inductor of this embodiment, as shown in FIG. 5 , a magnetic core part is also provided on the cover core 4, and the height of the magnetic core part 11 of the cylindrical core 1 is made low so that it is in contact with the cover core. The magnetic core portion of 4 has a predetermined air gap g, and other configurations are the same as those of the first embodiment.

[0057] Alternatively, the magnetic core portion may be provided only on the cover core so that a predetermined air gap g is provided between the magnetic core portion and the bottom portion of the cylindrical core.

[0058] Owing to be the structure as above, so, as the effect of the present invention, owing to be provided with the cylindrical core 1 that has outer wall and the cap core 4 that closes the open end of this cylindrical core 1, so between the outer wall of this cylindrical core 1 and There is no gap between the cover cores 4, and when the cylindrical core 1 is viewed fro...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention provides a surface-mounting inductor resolving the requirement for downsizing and a low profile having good assembling workability, an improved electrical characteristic, and no leakage magnetic flux. The surface-mounting inductor comprises a pot-type core having an external wall, a rectangular coil fixed to the pot-type core, a pair of electrodes provided on an outer periphery surface of the pot-type core, and a cover core for closing an opening end of the pot-type core. The pot-type core comprises a positioning mechanism for positioning with the cover core at the opening end, and two U shape windows having an open space adjacently over the electrode. The height of the bottom face of one U shape window is higher than that of the other U shape window by the width of a rectangular wire, and a protruding portion (43) having a height corresponding to the wire width of the rectangular coil is provided to the part of the cover core (4) corresponding to the other window (14a).

Description

technical field [0001] The present invention relates to a surface mount inductor in which a cylindrical core and a cover core are laminated from top to bottom and accommodates a flat coil. In particular, it relates to a surface mount inductor capable of improving assembly accuracy, improving inductance characteristics, and eliminating leakage magnetic flux. Background technique [0002] Patent Document 1 is known as a prior art document related to the present application, for example. [0003] Patent Document 1 Japanese Patent Laid-Open No. 2004-207371 [0004] The surface mount inductor of Document 1 will be described below with reference to the drawings. [0005] FIG. 6 is a perspective view of the surface mount inductor of Document 1. FIG. [0006] In FIG. 6, Document 1 is composed of a core 100 made of ferrite, having a rectangular bottom portion, a pair of peripheral wall portions protruding upward are erected at both ends of the bottom portion, and A cylindrical mag...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/24H01F27/28
Inventor 水谷升
Owner TOKYO PARTS IND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap