# US 2026/0092818 A1 · Temperature sensor

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- Number: US 2026/0092818 A1
- Document ID: US20260092818A1
- Status: Published application
- Kind: A1
- Application number: 19/343,985
- Filed: 2025-09-29
- Published: 2026-04-02
- Earliest claimed: 2024-09-30
- Assignees: Yazaki Corporation
- Applicants: Yazaki Corporation
- Inventors: Keisuke YAMAUCHI; Tadashi Ogawa
- Web page: https://patentgrep.com/patent/US20260092818A1

## CPC

- G01K 1/08: Protective devices, e.g. casings
- G01K 1/14: Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K 1/16: Special arrangements for conducting heat from the object to the sensitive element
- G01K 7/22: the element being a non-linear resistance, e.g. thermistor (G01K7/26 takes precedence)
- G01K 13/026: {of moving liquids}
- 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 measuring element, an accommodating body in which the temperature measuring element is embedded and accommodated, and a housing having a storage space in which the accommodating body is stored. The housing includes a first housing including a concave portion therein that defines the storage space and having outside a temperature measuring surface that comes into contact with an object to be measured, a second housing assembled to the first housing and closing an opening of the concave portion, and a filler with which the storage space is filled and a gap between the accommodating body and the first housing is filled. A material constituting the second housing has heat transfer property lower than that of a material constituting the filler.

## Claims

### Claim 1

A temperature sensor comprising: a temperature measuring element; an accommodating body in which the temperature measuring element is embedded and accommodated; and a housing having a storage space in which the accommodating body is stored,
wherein the housing includes a first housing including a concave portion therein that defines the storage space and having outside a temperature measuring surface that comes into contact with an object to be measured, a second housing assembled to the first housing and closing an opening of the concave portion, and a filler with which the storage space is filled and a gap between the accommodating body and the first housing is filled, and
wherein a material constituting the second housing has heat transfer property lower than that of a material constituting the filler.

### Claim 2 (depends on 1)

The temperature sensor according to claim 1, further comprising: a terminal connected to the temperature measuring element and extending from the accommodating body, wherein
the terminal is in contact with the filler.

### Claim 3 (depends on 2)

The temperature sensor according to claim 2,
wherein the second housing includes an insertion portion that holds the terminal and is inserted into the concave portion to close the opening, and
wherein the insertion portion includes, on an outer face of the insertion portion, a groove portion extending along an insertion direction into the concave portion.

### Claim 4 (depends on 1)

The temperature sensor according to claim 1,
wherein the first housing includes a wall portion having one surface which is the temperature measuring surface and other surface which faces the storage space.

### Claim 5 (depends on 1)

The temperature sensor according to claim 1,
wherein the accommodating body is a die-molded article having a predetermined molded shape.

### Claim 6 (depends on 5)

The temperature sensor according to claim 5,
wherein the molded shape of the accommodating body is a shape having an outer face constituted by a plurality of faces.