Rechargeable battery assembly and terminal device

• US 10,714,793 B2
• Filed: 02/29/2016
• Issued: 07/14/2020
• Est. Priority Date: 03/27/2015
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Inventors: Zhang, Jialiang
• Primary Examiner(s): Le, Thang X
• Application Number:
  US15/325,504
• Publication Number:
  US 20170179547A1
• Time in Patent Office: 1,597 Days
• CPC Class Codes: H01M 10/443 in response to temperature
• CPC Class Codes: H01M 10/486 for measuring temperature
• CPC Class Codes: H01M 2010/4278 Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
• CPC Class Codes: H01M 2200/103 Fuse
• CPC Class Codes: H01M 2220/30 Batteries in portable systems, e.g. mobile phone, laptop
• CPC Class Codes: H01M 50/569 Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals battery terminal connectors with integrated measuring arrangements G01R31/364
• CPC Class Codes: H01M 50/581 in response to temperature
• CPC Class Codes: H02H 7/18 for batteries; for accumulators
• CPC Class Codes: H02J 7/007192 in response to temperature
• CPC Class Codes: H02J 7/007194 of the battery
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

The present disclosure provides a rechargeable battery assembly and a terminal device. The terminal device is equipped with a rechargeable battery assembly. The rechargeable battery assembly comprises a battery main body (110), at least one temperature measurement element (120), and a processor. The battery main body comprises a cell (112) and at least two battery tabs (114). A charging current from a charging device is transmitted to the cell through the battery tabs. One temperature measurement element is corresponding to one battery tab, and the temperature measurement element is used for detecting the temperature of the corresponding battery tab, and transmitting, to the processor (140), temperature information indicating the temperature of the corresponding battery tab. The processor is used for acquiring the temperature information from the temperature measurement element, and for determining the temperature of the cell according to the temperature information.

Claims

1. A rechargeable battery assembly, comprising:

a battery body, comprising a cell and at least two battery lugs, the at least two battery lugs being configured to transmit charging current from a charging device to the cell;

at least one temperature measurement element corresponding to the at least two battery lugs, the at least one temperature measurement element being configured to detect temperature information of the at least two battery lugs; and

a processor that is configured to acquire the temperature information from the at least one temperature measurement element, and to determine a temperature of the cell according to the temperature information;

wherein, the temperature measurement element and the corresponding battery lug are disposed on a same thermal conductive substrate, and there is a preset space between the temperature measurement element and the corresponding battery lug;

wherein, the thermal conductive substrate is made of metal;

wherein the rechargeable battery assembly further comprises an insulating thermal conductive layer, wherein, the insulating thermal conductive layer is disposed between the temperature measurement element and the thermal conductive substrate, configured for conducting heat while avoiding influence on the temperature measurement element from current.

2. The rechargeable battery assembly according to claim 1, wherein, the insulating thermal conductive layer is disposed between the battery lug corresponding to the temperature measurement element and the thermal conductive substrate.

3. The rechargeable battery assembly according to claim 1, wherein, the rechargeable battery assembly comprises at least two temperature measurement elements, and the at least two temperature measurement elements have a one-to-one correspondence with the at least two battery lugs.

4. The rechargeable battery assembly according to claim 1, wherein, the processor is configured to acquire at least two pieces of temperature information from the at least two temperature measurement elements, and to perform an averaging processing on the at least two pieces of temperature information so as to determine the temperature of the cell, wherein the at least two temperature measurement elements have a one-to-one correspondence with the at least two pieces of temperature information.

5. The rechargeable battery assembly according to claim 1, wherein,

the temperature measurement element is configured to detect the temperature of the corresponding battery lug within at least two time periods, and to transmit at least two pieces of temperature information to the processor, wherein the at least two pieces of temperature information have a one-to-one correspondence with the at least two time periods, and each piece of temperature information is used for indicating a temperature of the corresponding battery lug within the corresponding time period;

and

the processor is configured to perform an averaging processing on the at least two pieces of temperature information, so as to determine the temperature of the cell.

6. The rechargeable battery assembly according to claim 1, further comprising:

a transmitter, configured to acquire information indicating the temperature of the cell from the processor, and to transmit the information indicating the temperature of the cell to a terminal device or a power adapter.

7. The rechargeable battery assembly according to claim 1, wherein respective thermal conductive substrates are integrally formed.

8. A terminal device configured with a rechargeable battery assembly, the rechargeable battery assembly comprising:

a battery body, comprising a cell and at least two battery lugs, the at least two battery lugs being configured to transmit charging current to the cell;

at least one temperature measurement element, corresponding to the at least two battery lugs, the at least one temperature measurement element being configured to detect temperature information of the at least two battery lugs; and

a processor, configured to acquire the temperature information from the at least one temperature measurement element, and to determine a temperature of the cell according to the temperature information;

wherein, the temperature measurement element and the corresponding battery lug are disposed on a same thermal conductive substrate, and there is a preset space between the temperature measurement element and the corresponding battery lug;

wherein, the thermal conductive substrate is made of metal;

wherein the rechargeable battery assembly further comprises an insulating thermal conductive layer, wherein, the insulating thermal conductive layer is disposed between the temperature measurement element and the thermal conductive substrate, configured for conducting heat while avoiding influence on the temperature measurement element from current.

9. The terminal device according to claim 8, wherein, the insulating thermal conductive layer is disposed between the battery lug corresponding to the temperature measurement element and the thermal conductive substrate.

10. The terminal device according to claim 8, wherein, the rechargeable battery assembly comprises at least two temperature measurement elements, and the at least two temperature measurement elements have a one-to-one correspondence with the at least two battery lugs.

11. The terminal device according to claim 8, wherein, the processor is configured to acquire at least two pieces of temperature information from the at least two temperature measurement elements, and to perform an averaging processing on the at least two pieces of temperature information so as to determine the temperature of the cell, wherein the at least two temperature measurement elements have a one-to-one correspondence with the at least two pieces of temperature information.

12. The terminal device according to claim 8, wherein

the temperature measurement element is configured to detect the temperature of the corresponding battery lug within at least two time periods, and to transmit at least two pieces of temperature information to the processor, wherein the at least two pieces of temperature information have a one-to-one correspondence with the at least two time periods, and each piece of temperature information is used for indicating a temperature of the corresponding battery lug within the corresponding time period, and

the processor is configured to perform an averaging processing on the at least two pieces of temperature information, so as to determine the temperature of the cell.

13. The terminal device according to claim 8, wherein the rechargeable battery assembly further comprises:

a transmitter, configured to acquire information indicating the temperature of the cell from the processor, and to transmit the information indicating the temperature of the cell to a terminal device or a power adapter.

14. The terminal device according to claim 8, wherein respective thermal conductive substrates are integrally formed.