Electronic apparatus, method of controlling electronic apparatus, power reception device, electric device, and system

Patent metadata

Field	Value
Publication number	US-10734829-B2
Application number	US-201916550600-A
Country	US
Kind code	B2
Filing date	Aug 26, 2019
Priority date	Jun 27, 2013
Publication date	Aug 4, 2020
Grant date	Aug 4, 2020

Abstract

There is provided an electronic apparatus including: a heating section; a heat storage section; a detection section configured to detect a heat storage amount of the heat storage section; and a control section configured to control operation of the heating section, based on the heat storage amount detected by the detection section.

First claim

The invention claimed is:

1. A power receiving apparatus, comprising:
a power receiving coil configured to receive a wireless power transmitted from a power transmitting apparatus;
a heat storage section;
a detection circuit configured to detect a first value corresponding to the heat storage section; and
a control circuit configured to calculate a second value based on the first value and to compare the calculated second value with a first threshold value and a second threshold value that is higher than the first threshold value.

2. The power receiving apparatus according to claim 1 , wherein in a case that the calculated second value is higher than the first threshold value and is lower than the second threshold value, the control circuit causes the power receiving apparatus to transmit a first request to the power transmitting apparatus, the first request requesting the power transmitting apparatus to decrease an amount of the wireless power transmitted from the power transmitting apparatus.

3. The power receiving apparatus according to claim 2 , wherein in a case that the calculated second value is higher than the second threshold value, the control circuit causes the power receiving apparatus to transmit a second request to the power transmitting apparatus, the second request requesting the power transmitting apparatus to stop transmitting the wireless power.

4. The power receiving apparatus according to claim 3 , further comprising:
a display configured to indicate that a power transmitting operation by the power transmitting apparatus is stopped in the case that the calculated second value is higher than the second threshold value.

5. The power receiving apparatus according to claim 3 , wherein in a case that the calculated second value becomes lower than the first threshold value after the power transmitting apparatus has stopped transmitting the wireless power to the power receiving apparatus, the control circuit causes the power receiving apparatus to transmit a third request to the power transmitting apparatus, the third request requesting the power transmitting apparatus to resume transmitting the wireless power.

6. The power receiving apparatus according to claim 5 , wherein the detection circuit is located on a surface of the heat storage section.

7. The power receiving apparatus according to claim 5 , wherein the first value is a temperature of the heat storage section, the calculated second value is a heat storage amount of the heat storage section, and the calculated second value is calculated based on the temperature and at least one of an electric resistance, a volume, a stress, or a strain of the heat storage section.

8. The power receiving apparatus according to claim 7 , further comprising
a heat dissipation component thermally coupled to the heat storage section.

9. A heat storage detection circuit, comprising:
a detection circuit configured to detect a first value corresponding to a heat storage section, wherein the heat storage section is located inside of a power receiving apparatus which receives a wireless power transmitted from a power transmitting apparatus; and
a control circuit configured to calculate a second value based on the first value and to compare the calculated second value with a first threshold value and a second threshold value that is higher than the first threshold value.

10. The heat storage detection circuit according to claim 9 , wherein in a case that the calculated second value is higher than the first threshold value and is lower than the second threshold value, the control circuit causes the power receiving apparatus to transmit a first request to the power transmitting apparatus, the first request requesting the power transmitting apparatus to decrease an amount of the wireless power transmitted from the power transmitting apparatus.

11. The heat storage detection circuit according to claim 10 , wherein in a case that the calculated second value is higher than the second threshold value, the control circuit causes the power receiving apparatus to transmit a second request to the power transmitting apparatus, the second request requesting the power transmitting apparatus to stop transmitting the wireless power.

12. The heat storage detection circuit according to claim 11 , wherein in a case that the calculated second value becomes lower than the first threshold value after the power transmitting apparatus has stopped transmitting the wireless power to the power receiving apparatus, the control circuit causes the power receiving apparatus to transmit a third request to the power transmitting apparatus, the third request requesting the power transmitting apparatus to resume transmitting the wireless power.

13. The heat storage detection circuit according to claim 12 , wherein the detection circuit is located on a surface of the heat storage section.

14. The heat storage detection circuit according to claim 12 , wherein the first value is a temperature of the heat storage section, the calculated second value is heat storage amount of the heat storage section, and the calculated second value is calculated based on the temperature and at least one of an electric resistance, a volume, a stress, or a strain of the heat storage section.

15. The heat storage detection circuit according to claim 14 , further comprising:
a heat dissipation component thermally coupled to the heat storage section.

16. A power transmitting system comprising:
a power receiving apparatus including:
a power receiving circuit including a power receiving coil configured to receive a wireless power transmitted from a power transmitting apparatus,
a heat storage section,
a detection circuit configured to detect a first value corresponding to the heat storage section, and
a control circuit configured to calculate a second value based on the first value and to compare the calculated second value with a first threshold value and a second threshold value; and
wherein the power transmitting apparatus is configured to perform power transmission operation based on a comparison result of the calculated second value, the first threshold value and the second threshold value.

17. The power transmitting system according to claim 16 , wherein in a case that the calculated second value is higher than the first threshold value and is lower than the second threshold value, the power transmitting apparatus is configured to decrease an amount of the wireless power transmitted to the power receiving apparatus.

18. The power transmitting system according to claim 17 , wherein in a case that the calculated second value is higher than the second threshold value, the power transmitting apparatus stops transmitting the wireless power to the power receiving apparatus.

19. The power transmitting system according to claim 18 , wherein the power receiving apparatus further includes a display configured to indicate that the power transmitting operation by the power transmitting apparatus is stopped in the case that the calculated second value is higher than the second threshold value.

20. The power transmitting system according to claim 18 , wherein in a case that the calculated second value becomes lower than the first threshold value after the power transmitting apparatus has stopped transmitting the wireless power to the power receiving apparatus, the power transmitting apparatus resumes transmitting the wireless power.

21. The power transmitting system according to claim 20 , wherein the detection c

Assignees

• Sony Corp

Inventors

• Yajima Masakazu
• Ichimura Kiminobu
• Ishida Yuichi
• Sugiyama Yutaka
• Muraoka Yoshio

Classifications

• H10W40/735

  by melting or evaporation of solids · CPC title

• H10W40/00

  Arrangements for thermal protection or thermal control (integrated devices comprising arrangements for thermal protection H10D89/60) · CPC title

• H02J7/82

  Control of state of charge [SOC] · CPC title

• H02J7/975

  in response to temperature · CPC title

• H02J7/92

  with prioritisation of loads or sources · CPC title