JPWO2019013032A1 - Battery modules, container-type power storage systems, vehicles, power storage systems, power tools and electronic devices - Google Patents

Abstract

To provide a battery module with improved maintainability. A battery module according to an embodiment of the present technology includes a battery accommodating portion that accommodates a plurality of batteries, a battery unit in which a plurality of batteries accommodated in the battery accommodating portion are connected by a connection tab, and a connection portion to which the connection tab is connected. A circuit board having an electronic component mounting portion and an exterior body accommodating a battery unit provided with the circuit substrate are provided, and a gap is formed between the connection portion and the electronic component mounting portion.

Description

  The present technology relates to a battery module applicable to a container-type power storage system, a vehicle, a power storage system, an electric tool, an electronic device, and the like. More specifically, the present invention relates to a battery module including an exterior body that houses a battery unit that houses a plurality of batteries.

  In recent years, there has been an increasing demand for a battery module containing a lithium-ion battery or the like as a power source for a hybrid device using an engine and a motor as a driving source and a device using a motor as a driving source. The battery module must contain a battery such as a lithium-ion battery, one or more battery blocks consisting of a battery holder that holds a plurality of these batteries, and parts such as a circuit board in an outer case made of plastic, for example. Is formed by. Further, the battery module is provided with, for example, a terminal-shaped output. This battery module should be used as a power source for various electric devices used outdoors, such as electronic devices such as notebook PCs, assisted bicycles, electric motorcycles, electric wheelchairs, electric tricycles, electric carts, and electric tools. You can

  In order to increase the efficiency of repair when replacing the circuit board when a defect occurs in the circuit board housed in the outer case of such a battery module, for example, in Patent Document 1, the board body and the replacement prediction unit are provided. It is integrally formed, and a slit or perforation is formed between them, and when the replacement prediction unit fails, the replacement prediction unit is separated from the substrate main body with the slit or perforation as a boundary, and a new replacement prediction unit is formed. Alternatively, it has been proposed to connect a repaired replacement prediction unit to the board body.

Japanese Patent Laid-Open No. 11-40903

  However, the technique proposed in Patent Document 1 may not be able to further improve the maintainability.

  Therefore, the present technology has been made in view of such a situation, and its main purpose is to provide a battery module having improved maintainability.

  The present technology has a battery accommodating portion that accommodates a plurality of batteries, and a battery unit in which a plurality of batteries accommodated in the battery accommodating portion are connected by connection tabs, a connecting portion to which the connection tabs are connected, and electronic component mounting. Provided is a battery module including a circuit board having a portion, and an exterior body accommodating a battery unit provided with the circuit board, wherein a gap is formed between the connection portion and the electronic component mounting portion.

  Further, the present technology controls a power storage device including the battery module according to the present technology, a power conversion device that converts electric power input from the battery module into desired power, and power supply from the battery module to the power conversion device. Provided is a container-type power storage system including a control device and a container that houses a power storage device, a power conversion device, and a control device.

  Further, the present technology includes a driving force conversion device that receives power supply from the battery module according to the present technology and converts the driving force into a driving force of a vehicle, a drive unit that drives according to the driving force, and a vehicle control device. Providing a vehicle. In addition, the present technology includes a power storage device including the battery module according to the present technology, a power consumption device to which power is supplied from the battery module, a control device that controls power supply from the battery module to the power consumption device, and a battery module. There is provided a power storage system including: In addition, the present technology provides an electric tool that includes the battery module according to the present technology and a movable part to which electric power is supplied from the battery module. In addition, an electronic device that includes the battery module according to the present technology and receives power supply from the battery module is provided.

  According to the present technology, it is possible to provide a battery module with improved maintainability. It should be noted that the effects described here are not necessarily limited, and any one of the effects described in the present disclosure or an effect different from them may be used.

It is a perspective view showing an example of composition of a battery module of a 1st embodiment concerning this art. It is a partially expanded perspective view which shows the structural example of the battery module shown in FIG. It is an enlarged view which shows the structural example of the side surface of the battery module shown in FIG. It is an enlarged view which shows the structural example of the side surface of the battery module shown in FIG. It is a perspective view which shows the example of an assembly process of the battery module shown in FIG. It is a perspective view which shows the example of an assembly process of the battery module shown in FIG. It is a perspective view which shows the example of an assembly process of the battery module shown in FIG. It is an enlarged view which shows the example of an assembly process of the battery module shown in FIG. It is an enlarged view which shows the example of an assembly process of the battery module shown in FIG. It is an enlarged view which shows a mode that a connector is connected to the battery module shown in FIG. It is a perspective view showing an example of composition of a container electricity storage system of a 2nd embodiment concerning this art. It is a perspective view showing an example of composition of a vehicles of a 3rd embodiment concerning this art. It is a perspective view showing an example of composition of an electric storage system of a 4th embodiment concerning this art. It is a block diagram showing an example of composition of an electric tool of a 5th embodiment concerning this art. It is a block diagram showing an example of composition of an electronic equipment of a 6th embodiment concerning this art.

  Hereinafter, a suitable mode for carrying out the present technology will be described with reference to the drawings. The embodiments described below can be combined with any of the embodiments. It is an example of a representative embodiment of the present technology, and the scope of the present technology is not narrowly construed. Further, the embodiments described below may be combined with any one or a plurality of embodiments. In the drawings, the same or equivalent elements or members will be denoted by the same reference symbols, without redundant description.

The description will be given in the following order.
1. First embodiment (configuration example of a battery module)
(1-1) Battery module configuration example (1-2) Control board replacement method example (1-3) Circuit board electrical connection configuration example Second embodiment (configuration example of container power storage system)
3. Third embodiment (vehicle configuration example)
4. Fourth embodiment (configuration example of power storage system)
5. Fifth embodiment (configuration example of electric power tool)
6. Sixth Embodiment (Configuration Example of Electronic Device)

<1. First embodiment (configuration example of battery module)>
A battery module according to a first embodiment of the present technology will be described with reference to FIGS. 1 to 10. In the present embodiment, as an example, a battery module accommodating a cylindrical lithium ion secondary battery will be described.

(1-1) Configuration Example of Battery Module As shown in FIG. 1, the battery module 1 of the present embodiment has a right side exterior case 2, a left side exterior case 3, a right insulator 4, a left insulator 5, and an upper exterior. A case 6, a lower outer case 7, a voltage sensing board 8 as a connecting portion, and a control board 9 as an electronic component mounting portion are provided. The right side exterior case 2, the left side exterior case 3, the upper exterior case 6 and the lower exterior case 7 form an exterior body of the battery module 1. Further, the voltage sensing board 8 and the control board 9 form a circuit board of the battery module 1. Although not shown, the battery module 1 also includes a circuit board formed by the voltage sensing board 8 and the control board 9 on the left side surface of the battery unit 21 similarly to the right side surface.

  The right side outer case 2 is formed in an L-shaped bent shape, and covers the entire right side surface of the battery module 1 and the right half surface of the rear side surface of the battery module 1. Similarly, the left side outer case 3 is formed in a shape bent into an L shape, and covers the entire left side surface of the battery module 1 and the left half surface of the rear side surface of the battery module 1. The right side exterior case 2 and the left side exterior case 3 are in contact at their ends at the center of the rear side surface.

  The upper outer case 6 and the lower outer case 7 are each formed in a substantially rectangular plate shape, and the end portions in contact with the right side outer case 2 and the left side outer case 3 via the insulators 4 and 5 are arranged in a direction facing each other. It is formed by bending. Attached to the end portions of the right side outer case 2 and the left side outer case 3 on the front side of the battery module 1 are attached accessory parts 10 to be connected to the upper outer case 6 and the lower outer case 7, respectively.

  FIG. 2 is a partially enlarged perspective view showing a configuration example of the battery unit 21 provided with the circuit board in the battery module 1 of the present embodiment. FIG. 3 is an enlarged plan view showing a configuration example of the circuit board provided on the side surface of the battery unit 21 sandwiched between the upper exterior case 6 and the lower exterior case 7 of the present embodiment. FIG. 4A is an enlarged plan view showing a configuration example of the circuit board provided on the side surface of the battery unit 21 from which the upper outer case 6 and the lower outer case 7 of FIG. 3 are removed. FIG. 4B is an enlarged plan view showing a configuration example of the battery unit 21 with the control board 9 removed from the circuit board of FIG. 4A.

  As shown in FIG. 2, the battery unit 21 has a plurality of battery accommodating portions 22 that accommodate a cylindrical lithium ion secondary battery, and a plurality of batteries accommodated in the battery accommodating portions 22 are connected by connection tabs 23. are doing. A contact portion 24 connected to the voltage sensing substrate 8 is formed at an end portion of the connection tab 23. The connection tab 23 is made of a metal plate and is led out from one or a plurality of battery accommodating portions 22 connected in series or in parallel.

  As shown in FIGS. 2 to 4, a voltage sensing board 8 and a control board 9 are attached to the side surface of the battery unit 21. In this embodiment, a substantially rectangular control board 9 is arranged in the center of a plate-shaped circuit board, and a voltage sensing board 8 is arranged around the control board 9. The control board 9 is detachably fixed to the side surface of the battery unit 21 with a screw 25 and a protrusion 26. The voltage sensing substrate 8 is connected to the contact portion 24 of the connection tab 23 by, for example, soldering, and is fixed to the side surface of the battery unit 21 by the protrusion 27 and the fixture 28. A slit-shaped gap 29, for example, is formed between the voltage sensing substrate 8 and the control substrate 9. The control board 9 may have a snap fit formed on the joint surface with the battery unit 21 instead of the screw 25 and the protrusion 26.

  As shown in FIG. 4B, when exchanging the control board 9 on which electronic components are mounted, first, the control board 9 is separated from the voltage sensing board 8, and then the screw 25 is pulled out from the side surface of the battery unit 21. The control board 9 can be removed. As a result, in the battery module 1 of the present embodiment, only the control board 9 can be removed and electronic parts can be easily repaired or replaced without removing the entire circuit board from the side surface of the battery unit 21.

(1-2) Example of Replacement Method of Control Board An example of a method of replacing the control board 9 provided in the battery module 1 of the present embodiment will be described with reference to FIGS. 5 to 9. 5 to 7 are, for example, perspective views showing a process of removing the right side outer case 2 and the right insulator 4 from the battery unit 21 of the battery module 1. FIG. 8 is a plan view showing a process of removing the control board 9 from the side surface of the battery unit 21. FIG. 9 is a plan view showing a state after the control board 9 is removed from the side surface of the battery unit 21.

  In the first step, as shown in FIG. 5, among the circuit boards arranged on both side surfaces of the battery module 1, screws attached to the outer case on the side on which the circuit board requiring repair or replacement is arranged. Or remove accessories. In the present embodiment, as an example, first, the screw 51 fixing the accessory 10 attached to the front end of the right side exterior case 2 is removed to remove the accessory 10 from the right side exterior case 2. Next, the screws 31 and 32 that lock the right side outer case 2 to the upper outer case 6 and the lower outer case 7 are removed.

  In the second step, as shown in FIG. 6, the right side outer case 2 is removed from the battery unit 21 of the battery module 1.

  In the third step, as shown in FIG. 7, the right side insulator 4 sandwiched between the right side exterior case 2 and the circuit board is removed from the battery unit 21 of the battery module 1.

  In the fourth step, as shown in FIG. 8, for example, when three connectors are connected, the connectors are first removed from the connector receivers 61, 62 and 63. Next, the matching portion of the gap 29 formed between the voltage sensing board 8 and the control board 9 is cut off, and the screw 25 and the protrusion 26 are removed from the control board 9.

  In the fifth step, as shown in FIG. 9, the control board 9 is removed from the battery unit 21, and the electronic components mounted on the control board 9 are repaired or replaced.

  When the control board 9 is attached to the battery unit 21 after repairing or replacing the electronic component, first, the control board 9 is inserted into the protrusion 26 and attached to the battery unit 21 with the screw 25. At this time, since the matching portion of the gap 29 formed between the voltage sensing substrate 8 and the control substrate 9 is not restored, the voltage sensing substrate 8 and the control substrate 9 are separated by the gap 29.

  After that, the battery module 1 is returned to the original state by the reverse procedure of the first step to the fourth step (in the order of the fourth step, the third step, the second step, the first step).

  With the method of replacing the control board 9 of the present embodiment, maintenance can be performed without touching the power line (for example, 50 V) portion of the voltage sensing board 8. Therefore, replacement or repair of electronic components can be performed safely and easily. it can.

(1-3) Configuration Example of Electrical Connection of Circuit Board FIG. 10 is an enlarged view showing a configuration example of connecting a connector which is an electrical connection of the circuit board of the battery module 1 shown in FIG. FIG. 10A shows a state before connecting the connector to the circuit board. FIG. 10B shows a state after the connector is connected to the circuit board.

  For example, when electrically connecting the voltage sensing board 8 and the control board 9 using two connectors, one end of the connector 71 with a lead wire is first connected to the connector receiver 61a of the voltage sensing board 8 and the other end is controlled. It is connected to the connector receiver 61b of the board 9. Similarly, one end of the connector 72 with a lead wire is connected to the connector receiver 62a of the voltage sensing board 8 and the other end is connected to the connector receiver 62b of the control board 9. As a result, the electronic component mounting portion and the tab connecting portion are connected by the lead-wired connectors 71 and 72. The connectors 71 and 72 with lead wires may be flexible substrates.

  With the above configuration, the battery module 1 of the present embodiment is said to take out the circuit board by removing the solder of the contact portion 24 which is the tab connection portion when the electronic component is removed and repaired or exchanged to be replaced with a new circuit board. Since no work is required, the circuit board can be easily replaced. Further, since there is no need for soldering work, unnecessary heat is not applied to the control board 9 on which electronic components are mounted, which contributes to improving the reliability of the components.

  As described above, in the battery module 1 of the present embodiment, the circuit board can be accessed only by removing the exterior body and the insulator on the side surface, and only the control board 9 can be removed to easily replace the defective portion. Maintenance efficiency can be dramatically improved. Furthermore, the battery module 1 can avoid the occurrence of secondary defects during maintenance. In addition, the battery module 1 has an effect that it can be easily insulated by providing a polycarbonate plate which is an insulator between the metal exterior side surface portion and the circuit board.

  Further, the circuit board of the battery module 1 can improve workability and reduce the influence of solder heat on the mounted components by providing the tab connection portion around the electronic component mounting portion. This is because the tab connection portion is provided around the electronic component mounting portion, so that when the tab is soldered, the space around the tab is large and work efficiency is good. Also, since there are few electronic parts around the tab, there is also an effect of reducing damage to the electronic parts due to heat during soldering work. Further, since the circuit board of the battery module 1 of the present embodiment has a structure in which the electronic component mounting portion and the tab connecting portion are connected only by the slit portion, the circuit board may be distorted due to stress during soldering of the tab. It is possible to reduce cracks (cracks) in the electronic mounting parts and cracks in the soldered portion.

  Furthermore, since the battery module 1 can remove the control board 9 while avoiding contact with the power line of the battery pack, it is possible to improve work safety. Furthermore, the battery module 1 can be repaired at the installation site without going through the conventional work procedure of transportation, disassembly, installation, and reassembly to a facility dedicated to maintenance, greatly reducing the period of suspension of the storage battery system. can do.

<2. Second embodiment (configuration example of container power storage system)>
A container power storage system according to a second embodiment of the present technology includes a power storage device including the battery module of the first embodiment of the present technology, a power conversion device that converts electric power input from the battery module into desired power, A container-type power storage system including: a control device that controls power supply from a battery module to a power conversion device; and a container that houses the power storage device, the power conversion device, and the control device. Since the container power storage system of the second embodiment according to the present technology includes the battery module of the first embodiment according to the present technology, which has excellent maintainability and excellent reliability, maintenance performance and reliability of power storage are improved. Leads to improvement of.

  Hereinafter, an example of the container power storage system of the second embodiment according to the present technology will be described with reference to FIG. 11. FIG. 11 shows an internal structure of the container-type power storage system 110 having a substantially rectangular parallelepiped shape, which is divided into two by a dividing line in the longitudinal direction.

  As shown in FIG. 11, the container-type power storage system 110 includes a conductive container 111, a DC input / output board 112, an AC / DC converter INV, and strings ST1 to ST14.

  The container 111 is, for example, a metal box having a length of 40 feet. Inside the container-type power storage system 110, a passage extending in the longitudinal direction having a width that allows a person to walk is formed at the center in the width direction. A wiring duct is provided on the ceiling of the container 111. The DC power line Lp, the communication line Lc, and the like are passed through the wiring duct. The container 111 is connected to the ground through the grounding means LE1.

  The AC / DC converter INV and the DC input / output board 112 are housed in a container 111. The AC / DC converter INV is, for example, a power converter that converts electric power input from the battery module 1 into desired electric power. The DC input / output board 112, the AC / DC converter INV, and the DC input / output board 112 are electrically connected to the container 111, and are grounded through the container 111.

  The strings ST1 to ST14 are arranged by stacking a plurality of power storage modules M and dividing them in parallel in the longitudinal direction of the container 111. The strings ST1 to ST7 are provided on the back side of FIG. 11, and the strings ST8 to ST14 are provided on the front side. One string ST is configured by accommodating a battery management unit BMU and 16 power storage modules M (2 rows × 8 stages) in a metal battery rack. The plurality of battery racks are arranged so that they can be mechanically and electrically connected to each other. The electricity storage module M of each string ST is placed on the shelf plate of each battery rack, and the grounding point thereof is electrically connected to the shelf plate. Each battery rack is electrically connected to the container 111 and grounded through the container 111.

  The power storage modules M1 to M16 housed in each string ST are connected in series to each other, and the positive electrode terminal side and the negative electrode terminal side of the series connection are connected to the battery management unit BMU. The battery management unit BMU and the AC / DC converter INV (power conditioner PCS) are connected by a DC power line Lp. Furthermore, the communication terminals of the power storage modules M1 to M16 are sequentially connected, and are connected to the communication terminals of the battery management unit BMU. The battery management unit BMU and the system controller SYS are connected by a communication wire Lc. Although not shown, the container 111 houses a concentrator HUB for collecting the communication wires Lc of the plurality of strings ST.

<3. Third Embodiment (Vehicle Configuration Example)>
A vehicle of a third embodiment according to the present technology includes a battery module according to the first embodiment of the present technology, a driving force conversion device that receives power supply from the battery module and converts the driving force into a vehicle, and a driving force conversion device. It is a vehicle provided with a drive part which drives according to it, and a vehicle control device. Since the vehicle of the third embodiment according to the present technology includes the battery module of the first embodiment according to the present technology, which has excellent maintainability and excellent reliability, it is possible to improve maintenance performance and vehicle reliability. Connect

  Below, the vehicle of 3rd Embodiment which concerns on this technique is demonstrated, referring FIG.

  FIG. 12 schematically shows an example of the configuration of a hybrid vehicle that employs a series hybrid system to which the present technology is applied. A series hybrid system is a vehicle that travels with an electric power driving force conversion device using electric power generated by a generator driven by an engine or electric power that is temporarily stored in a battery.

  The hybrid vehicle 7200 includes an engine 7201, a generator 7202, an electric power driving force converting device 7203, a driving wheel 7204a, a driving wheel 7204b, a wheel 7205a, a wheel 7205b, a battery 7208, a vehicle control device 7209, various sensors 7210, a charging port 7211. Is installed. A power storage device (not shown) is applied to battery 7208.

  The hybrid vehicle 7200 runs using the electric power / driving force converter 7203 as a power source. An example of the power driving force converter 7203 is a motor. The electric power / driving force conversion device 7203 operates by the electric power of the battery 7208, and the rotational force of the electric power / driving force conversion device 7203 is transmitted to the drive wheels 7204a and 7204b. Note that by using direct current-alternating current (DC-AC) or inverse conversion (AC-DC conversion) at a necessary portion, the power driving force conversion device 7203 can be applied to either an alternating current motor or a direct current motor. The various sensors 7210 control the engine speed via the vehicle control device 7209 and the opening of a throttle valve (throttle opening) not shown. The various sensors 7210 include a speed sensor, an acceleration sensor, an engine speed sensor, and the like.

  The rotational force of the engine 7201 is transmitted to the generator 7202, and the electric power generated by the generator 7202 by the rotational force can be stored in the battery 7208.

  When the hybrid vehicle is decelerated by a braking mechanism (not shown), the resistance force at the time of deceleration is applied to the electric power driving force converting device 7203 as a rotational force, and the regenerative electric power generated by the electric power driving force converting device 7203 is applied to the battery 7208 by this rotational force. Accumulated.

  Battery 7208 can also be connected to a power source external to the hybrid vehicle to receive power supply from the external power source using charging port 211 as an input port and store the received power.

  Although not shown, an information processing device that performs information processing regarding vehicle control based on information regarding the secondary battery may be provided. As such an information processing device, for example, there is an information processing device that displays a battery remaining amount based on information about the remaining battery amount.

  In the above description, a series hybrid vehicle that runs on a motor using electric power generated by a generator driven by an engine or electric power stored once in a battery has been described as an example. However, the present disclosure is also effective for a parallel hybrid vehicle that uses both the outputs of the engine and the motor as a drive source and appropriately switches and uses the three methods of traveling only by the engine, traveling only by the motor, and traveling by the engine and the motor. Applicable. Furthermore, the present technology can be effectively applied to a so-called electric vehicle that travels only by a drive motor without using an engine.

<4. Fourth embodiment (configuration example of power storage system)>
An electricity storage system according to a fourth embodiment of the present technology includes an electricity storage device including the battery module according to the first embodiment of the present technology, a power consumption device to which power is supplied from the battery module, and a power consumption device from the battery module. Is a power storage system that includes a control device that controls power supply to the battery and a power generation device that charges the battery module. Since the power storage system of the fourth embodiment according to the present technology includes the battery module of the first embodiment according to the present technology, which has excellent maintainability and excellent reliability, maintenance performance and reliability of power storage can be improved. Leads to improvement.

  Hereinafter, a residential power storage system, which is an example of the power storage system according to the fourth embodiment of the present technology, will be described with reference to FIG. 13.

  For example, in a power storage system 9100 for a house 9001, electric power is supplied from a centralized power system 9002 such as thermal power generation 9002a, nuclear power generation 9002b, and hydroelectric power generation 9002c via a power network 9009, an information network 9012, a smart meter 9007, a power hub 9008, and the like. It is supplied to the power storage device 9003. At the same time, electric power is supplied to the power storage device 9003 from an independent power source such as the home power generation device 9004. The electric power supplied to the power storage device 9003 is stored. Electric power used in the house 9001 is supplied using the power storage device 9003. The same power storage system can be used not only for the house 9001 but also for a building.

  A house 9001 is provided with a power generation device 9004, a power consumption device 9005, a power storage device 9003, a control device 9010 that controls each device, a smart meter 9007, and a sensor 9011 that acquires various kinds of information. The respective devices are connected by a power network 9009 and an information network 9012. A solar cell, a fuel cell, or the like is used as the power generation device 9004, and the generated power is supplied to the power consumption device 9005 and / or the power storage device 9003. The power consumption device 9005 is a refrigerator 9005a, an air conditioner 9005b, a television receiver 9005c, a bath 9005d, or the like. Further, the power consumption device 9005 includes an electric vehicle 9006. The electric vehicle 9006 is an electric vehicle 9006a, a hybrid car 9006b, and an electric motorcycle 9006c.

  The battery unit of the present disclosure described above is applied to the power storage device 9003. Power storage device 9003 includes a secondary battery or a capacitor. For example, it is composed of a lithium ion battery. The lithium ion battery may be a stationary type or may be used in the electric vehicle 9006. The smart meter 9007 has a function of measuring the usage amount of commercial power and transmitting the measured usage amount to the power company. The power network 9009 may combine any one or more of DC power supply, AC power supply, and contactless power supply.

  The various sensors 9011 are, for example, a human sensor, an illuminance sensor, an object detection sensor, a power consumption sensor, a vibration sensor, a contact sensor, a temperature sensor, an infrared sensor, and the like. The information acquired by the various sensors 9011 is transmitted to the control device 9010. From the information from the sensor 9011, the state of weather, the state of a person, etc. can be grasped, and the power consumption device 9005 can be automatically controlled to minimize energy consumption. Further, the control device 9010 can transmit information regarding the house 9001 to an external electric power company or the like via the Internet.

  The power hub 9008 performs processing such as branching of power lines and DC / AC conversion. As a communication system of the information network 9012 connected to the control device 9010, a method of using a communication interface such as UART (Universal Asynchronous Receiver-Transmitter), Bluetooth (registered trademark), ZigBee, Wi-Fi There is a method of using a sensor network according to a wireless communication standard such as. The Bluetooth (registered trademark) system is applied to multimedia communication and can perform one-to-many connection communication. ZigBee uses the physical layer of IEEE (Institute of Electrical and Electronics Engineers) 802.15.4. IEEE802.15.4 is the name of a short-range wireless network standard called PAN (Personal Area Network) or W (Wireless) PAN.

  The control device 9010 is connected to an external server 9013. The server 9013 may be managed by any of the house 9001, the electric power company, and the service provider. The information transmitted and received by the server 9013 is, for example, power consumption information, life pattern information, power charges, weather information, natural disaster information, and information on power transactions. These pieces of information may be transmitted and received from a power consuming device in the home (for example, a television receiver), or may be transmitted and received from a device outside the home (for example, a mobile phone). These pieces of information may be displayed on a device having a display function, for example, a television receiver, a mobile phone, a PDA (Personal Digital Assistants), or the like.

  A control device 9010 that controls each unit includes a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), and the like, and is stored in the power storage device 9003 in this example. The control device 9010 is connected to the power storage device 9003, the home power generation device 9004, the power consumption device 9005, various sensors 9011, the server 9013 and the information network 9012, and has a function of adjusting the usage amount of commercial power and the power generation amount, for example. have. In addition to the above, a function of performing power trading in the power market may be provided.

  As described above, not only the centralized power system 9002 such as thermal power 9002a, nuclear power 9002b, and hydraulic power 9002c, but also the power generated by the home power generation device 9004 (solar power generation, wind power generation) can be stored in the power storage device 9003. it can. Therefore, even if the power generated by the home power generation device 9004 fluctuates, it is possible to perform control such that the amount of power to be sent to the outside is constant or the discharge is performed as much as necessary. For example, the power obtained by solar power generation is stored in the power storage device 9003, the late-night power that is cheap at night is stored in the power storage device 9003, and the power stored by the power storage device 9003 is discharged during the daytime when the charge is high. You can also use it by using it.

  In this example, an example in which control device 9010 is stored in power storage device 9003 has been described, but it may be stored in smart meter 9007 or may be configured independently. Furthermore, the power storage system 9100 may be used for a plurality of homes in an apartment house or for a plurality of detached houses.

<5. Fifth embodiment (configuration example of power tool)>
The electric power tool of the fifth embodiment according to the present technology is an electric power tool including the battery module of the first embodiment according to the present technology, and a movable part to which electric power is supplied from the battery module. Since the power tool of the fifth embodiment according to the present technology includes the battery module of the first embodiment according to the present technology, which has excellent maintainability and excellent reliability, maintenance performance and reliability of the power tool are improved. Leads to improvement.

  Below, the electric power tool of 5th Embodiment which concerns on this technique is demonstrated, referring FIG.

  FIG. 14 shows a block configuration of the electric power tool. This power tool is, for example, a power drill, and includes a control unit 99 and a power supply 100 inside a tool body 98 formed of a plastic material or the like. A drill unit 101, which is a movable unit, is operably (rotatably) attached to the tool body 98, for example.

  The control unit 99 controls the operation of the entire electric power tool (including the usage state of the power supply 100), and includes, for example, a CPU. The power supply 100 includes one or more solid state batteries (not shown). The control unit 99 supplies power from the power supply 100 to the drill unit 101 in response to operation of an operation switch (not shown).

<6. Sixth Embodiment (Configuration Example of Electronic Device)>
An electronic device according to a sixth embodiment of the present technology is an electronic device that includes the battery module of the first embodiment of the present technology and receives power supply from the battery module. As described above, the electronic device of the sixth embodiment according to the present technology is a device that exhibits various functions by using the battery module as a driving power source (power supply source). Since the electronic device of the sixth embodiment according to the present technology includes the battery module of the first embodiment according to the present technology, which has excellent maintainability and excellent reliability, maintenance performance and reliability of the electronic device can be improved. Leads to improvement.

  Below, the electronic device of 6th Embodiment which concerns on this technique is demonstrated, referring FIG.

  An example of the configuration of the electronic device 400 according to the sixth embodiment of the present technology will be described. The electronic device 400 includes an electronic circuit 401 of the electronic device main body and a battery pack 300. The battery pack 300 is electrically connected to the electronic circuit 401 via the positive electrode terminal 331a and the negative electrode terminal 331b. The electronic device 400 has, for example, a configuration in which the user can attach and detach the battery pack 300. Note that the configuration of the electronic device 400 is not limited to this, and has a configuration in which the battery pack 300 is built in the electronic device 400 so that the user cannot remove the battery pack 300 from the electronic device 400. May be.

  When charging the battery pack 300, the positive electrode terminal 331a and the negative electrode terminal 331b of the battery pack 300 are connected to the positive electrode terminal and the negative electrode terminal of a charger (not shown), respectively. On the other hand, when the battery pack 300 is discharged (when the electronic device 400 is used), the positive electrode terminal 331a and the negative electrode terminal 331b of the battery pack 300 are connected to the positive electrode terminal and the negative electrode terminal of the electronic circuit 401, respectively.

  Examples of the electronic device 400 include a laptop personal computer, a tablet computer, a mobile phone (for example, a smartphone), a personal digital assistant (PDA), an imaging device (for example, a digital still camera, a digital video camera). ), Audio devices (eg portable audio players), game devices, cordless phones, e-books, electronic dictionaries, radios, headphones, navigation systems, memory cards, pacemakers, hearing aids, lighting devices, toys, medical devices, robots, etc. However, the present invention is not limited to this. As a specific example, a head-mounted display and a band-type electronic device will be described. The head-mounted display includes an image display device, a mounting device for mounting the image display device on an observer's head, and an image display device. A band-type electronic device is a band-type electronic device that is equipped with a mounting member for mounting the device to a mounting device, and uses the solid state battery according to the first to third embodiments of the present technology as a power source for driving. A plurality of segments; a plurality of electronic components arranged in the plurality of segments; and a flexible circuit board connecting the plurality of electronic components in the plurality of segments and arranged in a meandering shape in at least one segment. As the electronic component, the solid state battery according to the first to third embodiments of the present technology is a source electronic device arranged in the segment.

  The electronic circuit 401 includes, for example, a CPU (Central Processing Unit), a peripheral logic unit, an interface unit, and a storage unit, and controls the entire electronic device 400.

  The battery pack 300 includes an assembled battery 301 and a charge / discharge circuit 302. The assembled battery 301 is configured by connecting a plurality of secondary batteries 301a in series and / or in parallel. The plurality of secondary batteries 301a are connected, for example, in n parallel m series (n and m are positive integers). Note that FIG. 6 shows an example in which six secondary batteries 301a are connected in two parallels and three series (2P3S). As the secondary battery 301a, the secondary battery according to the first embodiment or its modification is used.

  At the time of charging, the charge / discharge circuit 302 controls charging of the assembled battery 301. On the other hand, during discharging (that is, when the electronic device 400 is used), the charging / discharging circuit 302 controls discharging of the electronic device 400.

  The present technology is not limited to the above-described embodiments and application examples, and can be modified within the scope not departing from the gist of the present technology. For example, in the above embodiment, an example of a cylindrical lithium ion secondary battery is described, but a laminated lithium ion secondary battery may be used.

1 Battery Module 2 Right Side Exterior Case 3 Left Side Exterior Case 4, 5 Insulator 6 Upper Exterior Case 7 Lower Exterior Case 8 Voltage Sensing Board 9 Control Board 10 Accessory 21 Battery Unit 22 Battery Housing 23 Connection Tab 24 Contact 25 , 31, 32, 51 Screws 26, 27 Protrusion 28 Fixture 29 Gap 61, 61a, 61b, 62, 62a, 62b Connector receiver 71, 72 Connector 110 Container type electricity storage system 111 Container 112 DC input / output board

Claims (16)

A battery unit having a battery accommodating portion for accommodating a plurality of batteries, and connecting a plurality of batteries accommodated in the battery accommodating portion with a connection tab;
A circuit board having a connection part to which the connection tab is connected and an electronic component mounting part,
An exterior body that houses the battery unit provided with the circuit board,
A battery module in which a gap is formed between the connecting portion and the electronic component mounting portion.   The battery module according to claim 1, wherein the circuit board is arranged on a side surface of the battery unit.   The battery module according to claim 1 or 2, wherein a side surface portion of the exterior body is removable.   The battery module according to claim 3, wherein an insulator is arranged between the side surface portion of the outer package and the circuit board.   The battery module according to claim 3, wherein the exterior body has an upper exterior body that covers an upper surface of the battery unit and a lower exterior body that covers a lower surface of the battery unit.   The battery module according to claim 5, wherein the side surface portion, the upper exterior body, and the lower exterior body are locked by screwing.   The connection tab is made of a metal plate, is led out from one or a plurality of the battery accommodating portions connected in series or in parallel, and is soldered to the connection portion. The battery module according to one item.   The battery module according to claim 1, wherein the connection portion and the electronic component mounting portion are connected by a flexible substrate or a connector.   The battery module according to claim 1, wherein the connecting portion is arranged around an electronic component mounting portion.   The battery module according to any one of claims 1 to 9, wherein the electronic component mounting portion is detachably fixed to the battery unit.   The battery module according to claim 10, wherein the electronic component mounting portion has a snap fit formed on a joint surface with the battery unit. An electricity storage device comprising the battery module according to claim 1.
A power conversion device that converts the power input from the battery module into a desired power,
A control device that controls power supply from the battery module to the power conversion device;
A container-type power storage system, comprising: the power storage device, the power conversion device, and a container that houses the control device. A battery module according to any one of claims 1 to 11,
A driving force conversion device that receives power supply from the battery module and converts the driving force into a driving force of a vehicle;
A drive unit that drives according to the drive force,
A vehicle including a vehicle control device. An electricity storage device comprising the battery module according to claim 1.
A power consumption device supplied with power from the battery module,
A control device for controlling power supply from the battery module to the power consumption device;
A power storage system, comprising: a power generation device that charges the battery module. A battery module according to any one of claims 1 to 11,
A movable part to which electric power is supplied from the battery module. A battery module according to claim 1, comprising:
An electronic device that receives power from the battery module.