Cylindrical battery

• US 20080160392A1
• Filed: 12/27/2007
• Published: 07/03/2008
• Est. Priority Date: 12/29/2006
• Status: Abandoned Application

• Current Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Isaji, Hidefumi, Fujimori, Yasunori, Toya, Shoichi, Maeda, Taishi
• Application Number:
  US12/005,339
• Publication Number:
  US 20080160392A1
• Time in Patent Office: Days
• US Class Current: 429/90
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 50/107 having curved cross-section, e.g. round or elliptic H01M50/103, H01M50/109, H01M50/11 take precedence
• CPC Class Codes: H01M 50/179 for cells having curved cross-section, e.g. round or elliptic H01M50/176, H01M50/181 take precedence
• CPC Class Codes: H01M 50/213 adapted for cells having curved cross-section, e.g. round or elliptic H01M50/209, H01M50/216 take precedence
• CPC Class Codes: H01M 50/50 Current conducting connections for cells or batteries
• CPC Class Codes: H01M 50/545 formed by the casing of the cells cup shaped terminals adapted for cells having curved cross-section H01M50/56
• 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: Y02E 60/10 Energy storage using batteries

Abstract

The board assembly portion includes a circuit board, a communication terminal, and an insulating formed section. A data-processing circuit is mounted on the circuit board. The insulating formed section positions the communication terminal in a predetermined position. A penetrating opening is formed in the central part of the board assembly portion to receive the protruding terminal of the base battery portion. The communication terminal that is formed in a ring shape is secured around the periphery of the penetrating opening on the upper surface side of the board assembly portion. The protruding terminal of the base battery portion has a height that protrudes from the upper surface of the board assembly portion. In the state where the board assembly portion is secured to the base battery portion, the whole cylindrical battery has the same exterior size as a standard size battery.

Claims

1. A cylindrical battery comprising:

a base battery portion that includes an exterior case that includes a cylindrical exterior can as the negative terminal of the base battery portion and a sealing plate that closes and seals an opening of the exterior can by caulking, and has a sealing structure that accommodates electrodes and electrolysis solution, the sealing plate being provided with a protruding terminal as the positive terminal of the base battery portion in the central part of the sealing plate and being provided with a caulked protruding section by caulking on the outer peripheral rim of the sealing plate; and

a board assembly portion that is secured on an end of the base battery portion on the protruding terminal side, wherein

the board assembly portion includes a circuit board that is provided with a data-processing circuit, a communication terminal that is connected to the data-processing circuit on the circuit board, and an insulating formed section that insulates the circuit board and positions the communication terminal at a predetermined position, wherein

a penetrating opening is formed in the central part of the board assembly portion to receive the protruding terminal of the base battery portion, and the communication terminal that is formed in a ring shape is secured around the periphery of the penetrating opening on the upper surface side of the board assembly portion, wherein

a connection metal plate is secured on the surface of the sealing plate, and includes a connection tab that is connected to the circuit board, wherein

the protruding terminal of the base battery portion is inserted into the penetrating opening of the board assembly portion so that the board assembly portion is secured on the end of the base battery portion on the protruding terminal side, and the connection tab of the connection metal plate is connected to the circuit board so that the circuit board is connected to the protruding terminal, wherein

the protruding terminal of the base battery portion has a height that protrudes from the upper surface of the board assembly portion that is secured to the base battery portion, wherein

the whole cylindrical battery has the same exterior size as a standard size battery in the state where the board assembly portion is secured to the base battery portion.

2. The cylindrical battery according to claim 1, wherein the whole cylindrical battery has the same exterior size as an AA size battery.

3. The cylindrical battery according to claim 1, wherein the data-processing circuit that is provided on the circuit board is connected to the positive and negative terminals of the base battery portion to be supplied with electric power from the base battery portion.

4. The cylindrical battery according to claim 1, wherein the insulating formed section includes a first insulating formed part that is arranged between the circuit board and the communication terminal, and a second insulating formed part that is coupled to the first insulating formed part and covers the outer peripheries of the circuit board and the communication terminal.

5. The cylindrical battery according to claim 1, wherein the first insulating formed part has a ring-shaped stepped area that can receive the communication terminal, and the communication terminal is fitted in the stepped area.

6. The cylindrical battery according to claim 1, wherein a ring-shaped groove is arranged between the protruding terminal and the caulked protruding section, wherein the first insulating formed part includes support legs that are inserted into positioning openings that are formed in the circuit board so that, when the support legs pass through the circuit board and are arranged in the ring-shaped groove, the first insulating formed part is secured at a predetermined position of the base battery portion.

7. The cylindrical battery according to claim 1, wherein the circuit board has notches on the outer peripheral rim of the circuit board, and is connected to the positive and negative terminals of the base battery portion in the notches.

8. The cylindrical battery according to claim 7, wherein the connection metal plate that is provided on its outer periphery with the connection tab that is connected to the circuit board is secured on the surface of the sealing plate, wherein the connection tab of the connection metal plate is connected to the circuit board in the notch of the circuit board so that the circuit board is connected to the protruding terminal.

9. The cylindrical battery according to claim 1, wherein the data-processing circuit that is provided on the circuit board calculates one type of or a plurality types of information on the remaining capacity of the battery, the deterioration degree of the battery, and the memory effect of the battery, and provides the one type of or the plurality types of information through the communication terminal.

10. A cylindrical battery comprising:

a base battery portion that includes an exterior case that includes a cylindrical exterior can as the negative terminal of the base battery portion and a sealing plate that closes and seals an opening of the exterior can by caulking, and has a sealing structure that accommodates electrodes and electrolysis solution, the sealing plate being provided with a protruding terminal as the positive terminal of the base battery portion in the central part of the sealing plate; and

a board assembly portion that is secured on an end of the base battery portion on the protruding terminal side, wherein

the board assembly portion includes a circuit board that is provided with an electronic element, and an insulating formed section that insulates the circuit board, wherein

a connection metal plate is secured on the surface of the sealing plate, and includes a connection tab that is connected to the circuit board, wherein

the board assembly portion is secured on the end of the base battery portion on the protruding terminal side, and the connection tab of the connection metal plate is connected to the circuit board so that the circuit board is connected to the protruding terminal, wherein

the protruding terminal of the base battery portion has a height that protrudes from the upper surface of the board assembly portion that is secured to the base battery portion, wherein

the whole cylindrical battery has the same exterior size as a standard size battery.

11. The cylindrical battery according to claim 10, wherein the exterior case is provided with a caulked protruding section on the outer peripheral rim of the sealing plate by the caulking, and a negative terminal tab that is connected to the circuit board is connected to the caulked protruding section.

12. The cylindrical battery according to claim 10, wherein the circuit board of the board assembly portion is provided with a data-processing circuit that calculates a battery remaining capacity.

13. The cylindrical battery according to claim 10, wherein a data-processing circuit that is provided on the circuit board to calculate a battery remaining capacity is operated by electric power that is supplied from the base battery portion, wherein the data-processing circuit calculates the battery remaining capacity of the base battery portion that is used as a power supply that operates the data-processing circuit.

14. The cylindrical battery according to claim 10, wherein the board assembly portion includes a display section that displays a battery remaining capacity, and a switch that causes the display section to display the battery remaining capacity.