# US 2013/0239703 A1 · Stator of torque sensor

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- Number: US 2013/0239703 A1
- Document ID: US20130239703A1
- Status: Published application
- Kind: A1
- Application number: 13/790,978
- Filed: 2013-03-08
- Published: 2013-09-19
- Earliest claimed: 2012-03-16
- Assignees: Jtekt Corporation
- Applicants: Jtekt Corporation
- Inventors: Toshiaki MURAKAMI
- Web page: https://patentgrep.com/patent/US20130239703A1

## CPC

- G01L 3/105: {involving inductive means (G01L3/102, G01L3/104 take precedence)}
- H02K 24/00: Machines adapted for the instantaneous transmission or reception of the angular displacement of rotating parts, e.g. synchro, selsyn
- G01L: MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G)
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})

## Abstract

A stator includes: cylindrical stator cores, each of which is formed of a laminated structure of electromagnetic steel sheets and at which an exciting coil and a detection coil are wound; and a mounting seat portion that is fixedly fitted to axial end faces of the stator cores. Insertion holes through which inserting bolts are passed are formed in the mounting seat portion.

## Claims

### Claim 1

A stator of a torque sensor, wherein
two cylindrical stator cores, each of which is formed of a laminated structure of electromagnetic steel sheets and at which a coil is wound, are arranged so as to be aligned in an axial direction,
a mounting seat portion is fixedly fitted to axial end portions of the stator cores, and
an insertion hole through which a fastening member is passed is formed in the mounting seat portion.

### Claim 2 (depends on 1)

The stator according to claim 1, wherein the mounting seat portion is formed separately from the two stator cores, and is held by the two stator cores such that the mounting seat portion and the two stator cores are fixedly fitted to each other.

### Claim 3 (depends on 1)

The stator according to claim 1, wherein:
the mounting seat portion is provided at each of the two stator cores;
a common fastening member is passed through the insertion holes respectively formed in the mounting seat portions of the two stator cores; and
an intervening member is interposed between the mounting seat portions of the two stator cores.

### Claim 4 (depends on 1)

The stator according to claim 1, further comprising an intervening member that is interposed between a base member and the mounting seat portion when the mounting seat portion is fastened to the base member by the fastening member.

### Claim 5 (depends on 3)

The stator according to claim 3, wherein:
the intervening member is a cylindrical member through which the fastening member is inserted; and
a positioning portion that positions the intervening member such that the intervening member is coaxial with the insertion hole is formed at the electromagnetic steel sheets that constitute each of the stator cores.

### Claim 6 (depends on 3)

The stator according to claim 3, wherein the two stator cores, the mounting seat portion and the intervening member are fixedly fitted together by a fixing member.

### Claim 7 (depends on 1)

The stator according to claim 1, wherein a connector is provided at the mounting seat portion.

### Claim 8 (depends on 6)

The stator according to claim 6, wherein a connector is provided at the fixing member.