JPS615438U

JPS615438U - Temperature detection device for rotating body

Info

Publication number: JPS615438U
Application number: JP8913984U
Authority: JP
Inventors: 謙若曽根
Original assignee: 株式会社安川電機
Priority date: 1984-06-15
Filing date: 1984-06-15
Publication date: 1986-01-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ａおよびｂは本考案の一実施例の構成を、温度検
出対象と併せて示した縦断面図および横断面図、第２図
は同実施例の構成要素の特性図、第３図ａおよびｂは他
の実施例の構成要素の形状を示す側面図である。１・・・・・・回転子鉄心、２・・・・・・軸、３・・
・・・・フレーム、４・・・・・・回転体としてのベア
リング、１１・・・・・・感温磁性体、１２，１２ａ，
１２ｂ・・・・・・永久磁石、１３・・・・・・板体、
１４・・・・・・ホール素子、１５・・・・・・ねじ、
１６・・・・・・強磁性体。Figures 1a and b are longitudinal and cross-sectional views showing the configuration of an embodiment of the present invention together with a temperature detection target, Figure 2 is a characteristic diagram of the components of the embodiment, and Figure 3 Figures a and b are side views showing the shapes of components of other embodiments. 1... Rotor core, 2... Shaft, 3...
... Frame, 4 ... Bearing as a rotating body, 11 ... Temperature-sensitive magnetic material, 12, 12a,
12b...Permanent magnet, 13...Plate body,
14... Hall element, 15... Screw,
16...Ferromagnetic material.

Claims

[Scope of utility model registration request]

(1) A temperature-sensitive magnetic body that is brought into close contact with a rotating body and has at least an annular rotating surface, and a magnet that is installed such that both magnetic poles face the rotating surface of the temperature-sensitive magnetic body with a predetermined gap, respectively; and a Hall element provided in the magnetic path of the magnet, the heat generated by the rotating body is transmitted to the temperature-sensitive body, and the Hall element detects a magnetic flux that changes according to the temperature of the temperature-sensitive magnetic body. A temperature detection device for a rotating body, characterized in that the temperature of the rotating body is detected by:

(2) The temperature detecting device for a rotating body according to claim 1, wherein the magnet is a horseshoe-shaped permanent magnet, and the Hall element is attached to one end of the permanent magnet.

(3) Utility model registration claim 1, characterized in that the magnet is made up of two permanent magnets coupled in series, and the Hall element is interposed at the mutual coupling point of these permanent magnets. A temperature detection device for a rotating body as described above.

(4) The temperature of the rotating body according to claim 1, wherein the magnet is a permanent magnet with a magnetic material bonded to its end, and the Hall element is interposed at the bonding point. Detection device.