Energy storage apparatus and method of manufacturing energy storage apparatus
An energy storage apparatus includes: a plurality of energy storage devices; a spacer unit having one or more spacers disposed between the energy storage devices or on sides of the energy storage devices; and a plurality of members disposed above the energy storage devices and the spacer unit (a bus bar frame, a heat shielding plate, a holder), wherein the spacer unit has a plurality of locking portions, the locking portions being configured to lock the members, respectively.
1. An energy storage apparatus comprising:
a plurality of energy storage devices;
a spacer unit having one or more spacers disposed between the energy storage devices or on sides of the energy storage devices; and
a plurality of members disposed above the energy storage devices and the spacer unit, the plurality of members including at least one of a bus bar frame, a heat shielding plate and a holder,
wherein the spacer unit has a plurality of locking portions, the locking portions being configured to lock the members, respectively.
2. The energy storage apparatus according to claim 1 ,
wherein each of the spacers has the locking portion which is formed of a plurality of locking portions.
3. The energy storage apparatus according to claim 1 ,
wherein the spacer unit includes a first spacer and a second spacer as the spacers,
the plurality of members have a first member and a second member, the first spacer has the locking portion and is configured to lock the first member by the locking portion, and
the second spacer has the locking portion and is configured to lock the second member by the locking portion.
4. The energy storage apparatus according to claim 1 ,
wherein the locking portions are configured to lock the plurality of members in a state where the locking portions support the plurality of members toward the spacer unit.
5. The energy storage apparatus according to claim 1 ,
wherein the plurality of members are stacked in a vertical direction.
6. The energy storage apparatus according to claim 5 ,
wherein the plurality of locking portions are disposed at a same height, and
each of the plurality of members has a portion to be locked disposed at a locking position of the locking portion which corresponds to said each of the plurality of members.
7. The energy storage apparatus according to claim 6 ,
wherein the spacer unit has the plurality of spacers, and
the spacers have a same shape.
8. The energy storage apparatus according to claim 1 further comprising a sensor mounted on the energy storage device,
wherein among the plurality of members, one member is the holder which is configured to hold the sensor, and
the sensor is disposed in the vicinity of the locking portion which is configured to lock the holder.
9. The energy storage apparatus according to claim 1 ,
wherein the locking portion, which is configured to lock at least one member among the plurality of members, is configured to lock a center portion of the member.
10. An energy storage apparatus comprising:
an energy storage device;
a sensor mounted on the energy storage device; and
a first member disposed in an opposedly facing manner with the energy storage device,
wherein the first member has:
a first engaging portion disposed as to sandwich the sensor in cooperation with the energy storage device, the first engaging portion being configured to engage with the sensor; and
a first biasing portion which is connected to the first engaging portion and is configured to apply a force on the sensor in a direction toward the energy storage device.
11. The energy storage apparatus according to claim 10 ,
wherein the first engaging portion is configured to engage with an upper surface of the sensor.
12. The energy storage apparatus according to claim 9 ,
wherein the first member further includes a sensor inserting portion in which an opening portion for inserting the sensor is formed.
13. The energy storage apparatus according to claim 12 ,
wherein the energy storage apparatus further comprises a second member disposed between the energy storage device and the first member, and
the sensor inserting portion has a second engaging portion which is disposed between the energy storage device and the second member and is configured to engage with the second member.
14. The energy storage apparatus according to claim 13 ,
wherein the second engaging portion is a projecting portion which is configured to project from a side surface of the sensor inserting portion.
15. The energy storage apparatus according to claim 13 ,
wherein the second member has a second biasing portion which is configured to engage with the second engaging portion, and is configured to apply a force on the second engaging portion in a direction toward the energy storage device.
16. The energy storage apparatus according to claim 13 ,
wherein the second member has two gaps communicating with the opening portion into which the sensor is inserted, the two gaps being formed at engaging positions where an engaging portion, which is configured to engage with the second engaging portion, is sandwiched by said two gaps.
17. An energy storage apparatus comprising:
an energy storage device;
a sensor mounted on the energy storage device;
a first member disposed in an opposedly facing manner with the energy storage device; and
a second member disposed between the energy storage device and the first member,
wherein the sensor is oriented in a direction which intersects with the first member, and
the first member comprises:
a first engaging portion disposed as to sandwich the sensor in cooperation with the energy storage device, the first engaging portion being configured to engage with the sensor; and
a first biasing portion which is connected to the first engaging portion and is configured to apply a force on the sensor in a direction toward the energy storage device, and
the first engaging portion is configured to engage with an upper surface of the sensor.
18. A method of manufacturing an energy storage apparatus which includes an energy storage device and a sensor mounted on the energy storage device, the method comprising:
disposing a first engaging portion of a first member which is disposed in an opposedly facing manner with the energy storage device at a position where the first engaging portion sandwiches the sensor in cooperation with the energy storage device;
making the first engaging portion of the first member engage with the sensor; and
applying a force on the sensor in a direction toward the energy storage device by a first biasing portion of the first member, the first member being connected to the first engaging portion.
19. The energy storage apparatus according to claim 1 , wherein the plurality of members comprises the bus bar frame, the heat shielding plate and the holder, which are stacked on the spacer unit and on a terminal surface of the plurality of energy storage devices.
20. The energy storage apparatus according to claim 19 , wherein the locking portion comprises a projection which projects in a direction away from the terminal surface,
wherein a member of the plurality of members comprises one of an other projection and an opening, and
wherein in a locked state, the projection of the locking portion engages the one of the other projection and the opening of the member to lock a position of the member.