Thermometer

Patent metadata

Field	Value
Publication number	US-11714006-B2
Application number	US-202217951396-A
Country	US
Kind code	B2
Filing date	Sep 23, 2022
Priority date	Dec 8, 2017
Publication date	Aug 1, 2023
Grant date	Aug 1, 2023

Abstract

A deep body thermometer that includes a body temperature measurement unit having a thermal resistor layer formed of a thermal resistor having a predetermined thermal resistance value, four temperature sensors arranged in a thickness direction of the thermal resistor layer, and a wiring substrate on which a processing circuit for processing an output signal of each of the four temperature sensors is mounted. Moreover, the thermometer includes an upper exterior body made of a foamed material of a closed cell or a semi-closed cell having a waterproof property to accommodate the body temperature measurement unit, and a lower exterior body formed of a non-foamed resin film having a waterproof property, in which peripheral edge portions of the upper exterior body and the lower exterior body are fixed in a close contact manner.

First claim

The invention claimed is:

1. A thermometer comprising:
a body temperature measurement unit having:
a thermal resistor layer including a thermal resistor having a predetermined thermal resistance value,
a plurality of temperature sensors arranged in the thermal resistor layer in a thickness direction thereof, and
a wiring substrate with a processing circuit mounted thereon that is configured to process an output signal of each of the plurality of temperature sensors;

an upper exterior body having a waterproof property that accommodates the body temperature measurement unit; and
a lower exterior body having a waterproof property that includes a film;
wherein the upper exterior body comprises peripheral edge portions that contact peripheral edge portions of the lower exterior body.

2. The thermometer according to claim 1 , wherein the lower exterior body has a thermal resistance value that is lower than a thermal resistance value of the upper exterior body.

3. The thermometer according to claim 1 , wherein a through-hole that penetrates in a thickness direction is disposed in the thermal resistor layer, and wherein the plurality of temperature sensors are arranged on an inner side of the through-hole with a space interposed between the plurality of temperature sensors and a peripheral wall defining the through-hole in the thermal resistor layer.

4. The thermometer according to claim 1 , wherein the thermal resistor layer has two thermal resistors having different thermal resistance values and substantially a same thickness as each other, and wherein a pair of the temperature sensors of the plurality of temperature sensors are arranged in each of the two thermal resistors.

5. The thermometer according to claim 1 , further comprising a light emitting unit disposed on a surface of the wiring substrate and configured to light or flicker based on an operation by a user and a measurement state of a body temperature.

6. The thermometer according to claim 1 , further comprising:
a plurality of through-holes that penetrate the thermal resistor layer in a thickness direction thereof,
wherein respective pairs of the plurality of temperature sensors are disposed on inner sides of the respective through-holes of the plurality of through-holes with a space interposed between each pair of temperature sensors.

7. The thermometer according to claim 1 , wherein the upper exterior body comprises a foamed material of a closed cell or a semi-closed cell having the waterproof property.

8. The thermometer according to claim 7 , wherein the thermal resistance value of the lower exterior body is lower than the thermal resistance value of the foamed material of the upper exterior body.

9. The thermometer according to claim 1 , wherein the upper exterior body comprises a concave cross-section that accommodates the body temperature measurement unit, and the lower exterior body comprises a planar shape that fixes the body temperature measurement unit.

10. The thermometer according to claim 9 , wherein the peripheral edge portions of the upper exterior body are formed with a concave cross-section the contacts the peripheral edge portions of the lower exterior body formed in the planar shape.

11. The thermometer according to claim 1 , wherein the body temperature measurement unit further comprises:
a wireless communication unit configured to transmit acquired body temperature data from the plurality of temperature sensors; and
a battery configured to supply power to the processing circuit and the wireless communication unit.

12. The thermometer according to claim 11 , wherein the wiring substrate has a first main surface and a second main surface that oppose each other, the plurality of temperature sensors is arranged on the first main surface side of the wiring substrate, and the wireless communication unit and the battery are arranged on the second main surface side of the wiring substrate.

13. The thermometer according to claim 1 , further including a sticking member having a first adhesive layer stuck to an outer surface of the lower exterior body, a breathable ventilation layer stuck to the first adhesive layer, and a second adhesive layer stuck to the ventilation layer.

14. The thermometer according to claim 13 , further comprising a first through-hole in an inner side of which the body temperature measurement unit is housed is disposed in the ventilation layer and the second adhesive layer in a thickness direction when viewed in a plan view thereof.

15. The thermometer according to claim 14 , wherein a plurality of second through-holes are disposed in a thickness direction in at least the second adhesive layer.

16. The thermometer according to claim 14 , wherein a notch having an intersection portion is disposed in at least the second adhesive layer.

17. A thermometer comprising:
a body temperature measurement unit having:
a single thermal resistor layer including a thermal resistor,
a plurality of temperature sensors disposed in the single thermal resistor layer in a thickness direction thereof, and a space provided between at least a pair of the plurality of temperature sensors in the thickness direction of the single thermal resistor layer, and
a wiring substrate disposed on the single thermal resistor layer;

an upper exterior body having a waterproof property that accommodates the body temperature measurement unit; and
a lower exterior body having a waterproof property that includes a film,
wherein the upper exterior body comprises peripheral edge portions that contact peripheral edge portions of the lower exterior body.

18. The thermometer according to claim 17 , wherein the wiring substrate comprises a processing circuit mounted thereon that is configured to process an output signal of each of the plurality of temperature sensors.

19. A thermometer comprising:
a body temperature measurement unit having:
a thermal resistor layer including a thermal resistor,
a plurality of temperature sensors disposed in the thermal resistor layer in a thickness direction thereof, and
a wiring substrate disposed on the thermal resistor layer;

an upper exterior body comprising a foamed material having a waterproof property and that accommodates the body temperature measurement unit; and
a lower exterior body having a waterproof property and including a film,
wherein the upper exterior body comprises peripheral edge portions that are in contact with peripheral edge portions of the lower exterior body.

20. The thermometer according to claim 17 , further comprising:
a plurality of through-holes that penetrate the single thermal resistor layer in a thickness direction thereof,
wherein the pair of the plurality of temperature sensors is disposed on an inner side of one of the plurality of through-holes with the space interposed between the pair of temperature sensors.

Assignees

• Murata Manufacturing Co

Inventors

• Shimuta Toru

Classifications

• G01K1/14 Primary

  Supports; Fastening devices; Arrangements for mounting thermometers in particular locations · CPC title

• G01K1/08

  Protective devices, e.g. casings · CPC title

• G01K13/20 Primary

  Clinical contact thermometers for use with humans or animals · CPC title

• G01K7/22 Primary

  the element being a non-linear resistance, e.g. thermistor (G01K7/26 takes precedence) · CPC title

• G01K13/25

  Protective devices therefor, e.g. sleeves preventing contamination · CPC title