# US 7,410,294 B2 · Temperature sensor

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- Number: US 7,410,294 B2
- Document ID: US7410294B2
- Status: Granted
- Kind: B2
- Application number: 10/559,763
- Filed: 2004-06-22
- Published: 2007-05-17
- Granted: 2008-08-12
- Earliest claimed: 2003-06-25
- Assignees: TDK Corporation
- Inventors: Satoru Shiraki; Kaoru Sasaki; Yutaka Wakabayashi
- Web page: https://patentgrep.com/patent/US7410294B2

## CPC

- G01K 1/14: Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K 1/08: Protective devices, e.g. casings
- G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00)

## Abstract

A temperature sensor with a reduced number of components is provided. In the temperature sensor (10) in accordance with the present invention, a cap part (44A) of a sensor cover (44) covers an opening (14) of a holder (12) as a whole, whereby water droplets and the like are prevented from entering between the holder (12) and a filler resin part (42). A neck part (44B) of the sensor cover (44) keeps a harness pair (34A, 34B) from breaking by bending in excess. Both of the cap part (44A) and neck part (44B) are a part of the sensor cover (44) and are integrated together. The number of components in the temperature sensor (10) employing such a sensor cover (44) is smaller than that in a temperature sensor (50) in which a cap and a lead drawing member are separate from each other.

## Claims

### Claim 1

A temperature sensor comprising:
a bottomed tubular holder having an opening;
a temperature detecting device, contained in a bottom part of the holder, having a lead pair connected thereto so as to be introduced from an opening side;
a filler resin part filling the holder so as to seal the temperature detecting device and extending to the opening; and
a sensor cover comprising a cap part covering the whole opening and a neck part extending from the cap part in a direction generally parallel to the opening of the bottomed tubular holder, wherein
the cap part and the neck part are integrated together, and
the neck part is extending from the cap part in a direction substantially perpendicular to an extending direction of the holder.

### Claim 2 (depends on 1)

A temperature sensor according to claim 1, further comprising a guide part, projecting from an edge of the opening in the holder, for guiding leads constituting the lead pair;
wherein the sensor cover covers the guide part.

### Claim 3 (depends on 1)

A temperature sensor according to claim 1, wherein an edge of the opening of the holder is formed with a substantially annular hook part projecting to an outside of the holder; and
wherein the hook part engages at least a part of the sensor cover.

### Claim 4 (depends on 1)

A temperature sensor according to claim 1, wherein the sensor cover is formed by hot melt molding.

### Claim 5 (depends on 1)

A temperature sensor according to claim 1, wherein the holder is constituted by a resin; and
wherein the temperature detecting device is covered only with a device protecting part constituted by the holder and the filler resin part.

### Claim 6 (depends on 5)

A temperature sensor according to claim 5, wherein the holder and filler resin part are constituted by different kinds of resins.

### Claim 7 (depends on 5)

A temperature sensor according to claim 5, wherein the holder and the filler resin part are constituted by the same kind of resins.

### Claim 8 (depends on 5)

A temperature sensor according to claim 5, wherein the device protecting part contains a polyphenylene sulfide resin as a constituent material.

### Claim 9

A temperature sensor comprising:
a bottomed tubular holder having an opening;
a temperature detecting device, contained in a bottom part of the holder, having a lead pair connected thereto so as to be introduced from an opening side;
a filler resin part filling the holder so as to seal the temperature detecting device and extending to the opening;
a sensor cover comprising a cap part covering the whole opening and a neck part extending from the cap part in a direction generally parallel to the opening of the bottomed tubular holder, wherein the cap part and the neck part are integrated together; and
a guide part, projecting from an edge of the opening in the holder, for guiding leads constituting the lead pair;
wherein the sensor cover covers the guide part, and the lead pair extending substantially vertically from the filler resin part is bent at substantially right angles toward the guide part.

### Claim 10 (depends on 9)

A temperature sensor according claim 9, wherein the guide part has a T-shaped form including a part extending in a direction perpendicular to an extending direction of the holder and a part extending parallel to the extending direction of the holder.

### Claim 11 (depends on 9)

A temperature sensor according to claim 9, wherein an edge of the opening of the holder is formed with a substantially annular hook part projecting to an outside of the holder; and
wherein the hook part engages at least a part of the sensor cover.

### Claim 12 (depends on 9)

A temperature sensor according to claim 9, wherein the sensor cover is formed by hot melt molding.

### Claim 13 (depends on 9)

A temperature sensor according to claim 9, wherein the holder is constituted by a resin; and
wherein the temperature detecting device is covered only with a device protecting part constituted by the holder and the filler resin part.

### Claim 14 (depends on 13)

A temperature sensor according to claim 13, wherein the holder and filler resin part are constituted by different kinds of resins.

### Claim 15 (depends on 13)

A temperature sensor according to claim 13, wherein the holder and the filler resin part are constituted by the same kind of resins.

### Claim 16 (depends on 13)

A temperature sensor according to claim 13, wherein the device protecting part contains a polyphenylene sulfide resin as a constituent material.
