Battery pack and wiring substrate

• US 8,691,411 B2
• Filed: 03/28/2008
• Issued: 04/08/2014
• Est. Priority Date: 01/22/2008
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Takahashi, Tsukasa, Okada, Tomomichi, Tatehata, Shoji
• Primary Examiner(s): Leong, Jonathan G
• Application Number:
  US12/057,433
• Publication Number:
  US 20090186262A1
• Time in Patent Office: 2,202 Days
• Field of Search: 429/90, 429/92, 429122-347
• US Class Current: 429/92
• CPC Class Codes: H01M 50/176 for prismatic or rectangular cells H01M50/181 takes precedence
• CPC Class Codes: H01M 50/528 Fixed electrical connections, i.e. not intended for disconnection
• CPC Class Codes: H01M 50/55 on the same side of the cell
• CPC Class Codes: H01M 50/553 Terminals adapted for prismatic, pouch or rectangular cells
• CPC Class Codes: H01M 50/597 Protection against reversal of polarity
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A battery pack includes a pack body that includes a battery cell and that has an external shape substantially symmetric with respect to the horizontal and vertical axes, viewed from a front face on which terminals are arranged, and a terminal unit on the front face. The terminal unit includes a positive terminal, a negative terminal, a control terminal, and a temperature detection terminal for outputting temperature data. The positive terminal and the negative terminal are arranged on one side with respect to a center line in the width direction of the pack body. The control terminal is arranged symmetrically to the temperature detection terminal with respect to the center line in the width direction of the pack body.

Claims

1. A battery pack supplying electricity to an electronic device, the battery pack comprising:

a pack body that includes a battery cell and that has an external shape substantially symmetric with respect to the horizontal and vertical axes, viewed from a front face on which terminals are arranged; and

a terminal unit on the front face, wherein the terminal unit includes a positive terminal, a negative terminal, a control terminal, and a temperature detection terminal for outputting temperature data, the control terminal receiving a signal from the electronic device, wherein the positive terminal and the negative terminal are arranged on one side with respect to a center line in the width direction of the pack body, the control terminal is arranged symmetrically to the temperature detection terminal with respect to the center line in the width direction of the pack body, and the control terminal is arranged asymmetrically with the positive terminal and the negative terminal with respect to the center line in the width direction of the pack body.

2. The battery pack according to claim 1, wherein the positive terminal is most far from the control terminal in the width direction on the front face of the pack body.

3. The battery pack according to claim 2, wherein the negative terminal is arranged at the innermost part in the width direction of the pack body.

4. The battery pack according to claim 1, wherein a space between the terminal on the other side with respect to the center line in the width direction and the terminal at the innermost part among the terminals arranged on the one side with respect to the center line in the width direction of the pack body is wider than spaces among the terminals arranged on the one side with respect to the center line in the width direction of the pack body.

5. The battery pack according to claim 4, wherein the space between the terminal on the other side with respect to the center line in the width direction and the terminal at the innermost part among the terminals arranged on the one side with respect to the center line in the width direction of the pack body serves as a contact portion with which a spring is contact when the battery pack is loaded in a battery mounting unit.

8. The battery pack according to claim 1, wherein the battery pack turns on the electricity to the electronic device based on receiving the signal from the electronic device.

12. The battery pack according to claim 1, further comprising:

an authentication circuit configured to prevent power of the battery cell from being supplied to the electronic device when the control terminal does not receive the signal from the electronic device.

6. A battery pack supplying electricity to an electronic device, the battery pack comprising:

a pack body that includes a battery cell and that has an external shape substantially symmetric with respect to the horizontal and vertical axes, viewed from a front face on which terminals are arranged; and

a terminal unit that is provided on the front face and that is connected to an electrical contact part of a battery mounting unit when the battery pack is loaded in the battery mounting unit, wherein the terminal unit includes a positive terminal, a negative terminal, a control terminal, and a temperature detection terminal for outputting temperature data, the control terminal receiving a signal from the electronic device, wherein the positive terminal, the negative terminal, and one of the control terminal and the temperature detection terminal are arranged on one side with respect to a center line in the width direction of the pack body, wherein the other of the control terminal and the temperature detection terminal is arranged on the other side with respect to the center line in the width direction of the pack body, wherein the other of the control terminal and the temperature detection terminal is not arranged symmetrically to the positive terminal and the negative terminal with respect to the center line in the width direction of the pack body, the control terminal is arranged symmetrically to the temperature detection terminal with respect to the center line in the width direction of the pack body, and the control terminal is arranged asymmetrically with the positive terminal and the negative terminal with respect to the center line in the width direction of the pack body.

9. The battery pack according to claim 6, wherein the battery pack turns on the electricity to the electronic device based on receiving the signal from the electronic device.

13. The battery pack according to claim 6, further comprising:

an authentication circuit configured to prevent power of the battery cell from being supplied to the electronic device when the control terminal does not receive the signal from the electronic device.

7. A wiring substrate used in a battery pack that has an external shape substantially symmetric with respect to the horizontal and vertical axes, viewed from a front face on which terminals are arranged, the battery pack supplying electricity to an electronic device, the wiring substrate comprising:

a terminal unit on the front face, the terminal unit being connected to an electrical contact part of a battery mounting unit when the battery pack is loaded in the battery mounting unit, the terminal unit including a positive terminal, a negative terminal, a control terminal, and a temperature detection terminal for outputting temperature data, the control terminal receiving a signal from the electronic device, wherein the positive terminal, the negative terminal, the control terminal, and the temperature detection terminal are arranged on a face that has a substantially rectangular shape and that faces outward when the wiring substrate is mounted to the front face of the battery pack, wherein the positive terminal, the negative terminal, and one of the control terminal and the temperature detection terminal are arranged on one side with respect to a center line in the width direction of the pack body, wherein the other of the control terminal and the temperature detection terminal is arranged on the other side with respect to the center line in the width direction of the pack body, wherein the other of the control terminal and the temperature detection terminal is not arranged symmetrically to the positive terminal and the negative terminal with respect to the center line in the width direction of the pack body, the control terminal is arranged symmetrically to the temperature detection terminal with respect to the center line in the width direction of the pack body, and the control terminal is arranged asymmetrically with the positive terminal and the negative terminal with respect to the center line in the width direction of the pack body.

10. The wiring substrate according to claim 7, wherein the battery pack turns on the electricity to the electronic device based on receiving the signal from the electronic device.

11. The wiring substrate according to claim 7, further comprising:

an authentication circuit configured to prevent power of the battery cell from being supplied to the electronic device when the control terminal does not receive the signal from the electronic device.