JPWO2020241327A5 - - Google Patents

Claims (14)

With multiple battery cells,
A group of connection terminals including a positive electrode terminal and a negative electrode terminal connected to the battery cell,
A battery pack comprising a circuit board on which the control circuit of the battery cell is mounted.
The positive electrode terminal is arranged on one side of the circuit board in the left-right direction, and the negative electrode terminal is arranged on the other side of the circuit board in the left-right direction .
The control circuit is mounted on one side in the front-rear direction with respect to the connection terminal group of the circuit board.
A wireless communication unit for performing wireless communication with an external device is mounted on the other side of the circuit board in the front-rear direction with respect to the connection terminal group.
When the region on the other side of the connection terminal group in the front-rear direction of the circuit board is divided into three in the left-right direction, connection tabs to which the positive electrode terminal and the negative electrode terminal of the battery cell are connected are provided in the regions on both the left and right sides. A battery pack that is arranged and has a control unit of the wireless communication unit mounted in a central area . The battery pack according to claim 1, wherein the circuit board is provided so as to cover the battery cell. The battery pack according to claim 1 or 2, wherein the wireless communication unit is arranged on the other side of the circuit board in the front-rear direction . The battery pack according to any one of claims 1 to 3, wherein the wireless communication unit is arranged at the other end of the circuit board in the front-rear direction . The invention according to any one of claims 1 to 4, wherein the circuit board is substantially square in top view, and the positive electrode terminal and the negative electrode terminal are separated from each other in the left-right direction and fixed to the circuit board. The listed battery pack. It has a non-conductive separator that holds the orientations of adjacent cells alternately arranged side by side so that the axes of the plurality of battery cells are parallel to each other.
The circuit board is arranged above the separator and
One connection tab of the battery cell connected in series to the front corner of the circuit board is wired.
The battery pack according to claim 5, wherein the wireless communication unit is arranged at a position away from the connection tab. It has a first cell unit in which a plurality of the battery cells are connected in series, and a second cell unit in which a plurality of the battery cells are connected in series.
A connection tab for the first cell unit and a connection tab for the second cell unit are arranged at the two front corners of the circuit board, respectively.
A connection tab for the first cell unit and a connection tab for the second cell unit are arranged at the two corners on the rear side of the circuit board, respectively.
The battery pack according to claim 5, wherein the wireless communication unit is arranged between two connection tabs arranged on the front side of the circuit board. The wireless communication unit includes a microcomputer having a built-in wireless communication circuit and an antenna unit connected to the microcomputer.
The battery pack according to claim 6 or 7, wherein the antenna portion is arranged in front of the microcomputer when viewed in the mounting direction of the battery pack. The claim is characterized in that the antenna portion and the microcomputer are mounted in advance on a common base member, and the base member is fixed to the circuit board by soldering the terminal group of the microcomputer to the circuit board. The battery pack according to 8. The battery pack according to claim 9, wherein the microcomputer is arranged at a position passing through the left and right center lines of the circuit board. The battery pack according to any one of claims 1 to 10, wherein the control circuit includes an IC for protecting the battery. With multiple battery cells,
A group of connection terminals including a positive electrode terminal and a negative electrode terminal connected to the battery cell,
A battery pack comprising a circuit board on which the control circuit of the battery cell is mounted.
The positive electrode terminal is arranged on one side of the circuit board in the left-right direction, and the negative electrode terminal is arranged on the other side of the circuit board in the left-right direction.
A wireless communication circuit for performing wireless communication with an external device at a position that passes through the left and right center lines at the front end when viewed in the mounting direction with respect to the connection terminal group of the circuit board, and the wireless. Equipped with a module including an antenna part connected to the communication circuit ,
When the front area of the connection terminal group of the circuit board was divided into three in the left-right direction, the connection tabs from the battery cells were arranged in the areas on both the left and right sides, and the microcomputer was mounted in the center area. Characterized battery pack. The module includes a microcomputer having a built-in wireless communication circuit and an antenna unit connected to the microcomputer.
The battery pack according to claim 12, wherein the antenna portion is arranged on the front side in the mounting direction with respect to the microcomputer. It is characterized by having the battery pack according to any one of claims 1 to 13, a mounting mechanism for mounting and removing the battery pack, and a load mechanism operated by the electric power from the ground pack. Electrical equipment.