# US 12,590,847 B2 · Temperature sensor

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- Number: US 12,590,847 B2
- Document ID: US12590847B2
- Status: Granted
- Kind: B2
- Application number: 18/547,595
- Filed: 2022-08-04
- Published: 2025-01-09
- Granted: 2026-03-31
- Earliest claimed: 2022-08-04
- Assignees: Shibaura Electronics Co., Ltd.
- Applicants: Shibaura Electronics Co., Ltd.
- Inventors: Masakazu Enomoto; Kouzou Fujita; Tatsuyuki Suzuki
- Web page: https://patentgrep.com/patent/US12590847B2

## CPC

- G01K 1/143: for measuring surface temperatures
- G01K 1/14: Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00)

## Abstract

A temperature sensor includes a temperature measurement unit that is configured to measure a temperature of a measurement object, the temperature measurement unit having a heat-sensitive body and a pair of electric wires electrically connected to the heat-sensitive body; a holding portion that holds the temperature measurement unit and is composed of a single member; and an elastic portion that applies an elastic force to the temperature measurement unit toward the measurement object, the elastic portion being provided between the temperature measurement unit and the holding portion. The electric wires of the temperature measurement unit are pulled out from the holding portion along a first direction in which the elastic force is applied.

## Claims

### Claim 1

A temperature sensor comprising:
a temperature measurement unit that is configured to measure a temperature of a measurement object, the temperature measurement unit having a heat-sensitive body and a pair of electric wires electrically connected to the heat-sensitive body;
a holding portion that holds the temperature measurement unit and is composed of a single member; and
an elastic portion that applies an elastic force to the temperature measurement unit toward the measurement object, the elastic portion being provided between the temperature measurement unit and the holding portion, wherein
the electric wires of the temperature measurement unit are pulled out from the holding portion along a first direction in which the elastic force is applied, wherein
the holding portion includes an accommodation portion that accommodates the elastic portion and opens in a second direction that intersects the first direction in which the elastic force is applied, wherein
the elastic portion is composed of a compression coil spring, and wherein
the electric wires are pulled out from the holding portion through a central empty space of the compression coil spring.

### Claim 2 (depends on 1)

The temperature sensor according to claim 1, wherein
the holding portion includes a locking body that locks the electric wires.

### Claim 3 (depends on 1)

The temperature sensor according to claim 1, wherein
the holding portion includes a guide that is configured to guide a displacement of the temperature measurement unit due to a vibration of the measurement object.

### Claim 4 (depends on 1)

The temperature sensor according to claim 1, wherein the holding portion includes an attachment assurance body that ensures completion of attachment to the measurement object.

### Claim 5 (depends on 1)

The temperature sensor according to claim 1, wherein the temperature measurement unit includes a protective tube that accommodates the heat-sensitive body and has a heat-sensitive surface in contact with the measurement object.

### Claim 6 (depends on 5)

The temperature sensor according to claim 5, wherein the protective tube has a rectangular tube shape.