JP7392303B2 - Power storage device - Google Patents

Description

The present invention relates to a power storage device attached to an attached member.

Conventionally, a configuration in which a power storage device having a power storage element is attached to a member to be attached is widely known. For example, Patent Document 1 discloses a configuration in which a battery module (power storage device) having a plurality of battery cells (power storage elements) is attached to a tray (mounted member) via a bracket with a screw member.

Japanese Patent Application Publication No. 2015-43336

A power storage device having a power storage element is often a heavy object, and is preferably fixed to a member to be attached as in the above-mentioned conventional configuration. For example, when installing a power storage device on a moving object such as a vehicle, it is necessary to suppress the shaking of the power storage device. It is preferable to fix it to a member. However, power storage devices are often installed in narrow spaces due to space saving, weight reduction, etc., which may limit the work space and make the installation work difficult. As described above, the inventors of the present invention have found that with the conventional configuration described above, it may be difficult to attach the power storage device to the member to be attached.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a power storage device that can be easily attached to a member to be attached.

In order to achieve the above object, a power storage device according to one aspect of the present invention is a power storage device that includes a power storage element and is attached to a member to be attached, wherein the first The power storage device includes an external terminal disposed on a surface on the direction side, and a first fixing portion disposed at the other end of the power storage device in the first direction and fixed to the attached member in the first direction.

According to this, the power storage device includes an external terminal on the first direction side surface of one end in the first direction, and has a first terminal fixed to the attached member in the first direction on the other end in the first direction. Equipped with a fixed part. Here, in the power storage device, external terminals may be arranged on the first direction side surface (for example, the near side surface) of one end in the first direction for reasons such as facilitating connection between external terminals. be. However, in this case, it becomes difficult to fix the power storage device to the attached member in a direction different from the first direction (for example, in the vertical direction or in the horizontal direction) at the other end side in the first direction (for example, on the back side). There is a risk. For this reason, the power storage device is provided with a first fixing portion that is fixed to the attached member in the first direction (for example, the front-back direction). Thereby, the power storage device can be fixed to the attached member by fixing to the attached member in the first direction, so that the power storage device can be easily attached to the attached member.

Furthermore, the mounting section on which the power storage device is mounted may further include a second fixing section fixed in a second direction intersecting the first direction.

According to this, the power storage device includes the second fixing part that is fixed to the mounting part in the second direction. Here, when installing the power storage device on the mounting section, if it is possible to do the installation work from the second direction (for example, up and down), it is easier to fix the power storage device by doing the installation work from the second direction. can do. Therefore, the second fixing part is fixed to the mounting part in the second direction. Accordingly, in addition to being fixed to the attached member in the first direction, it is also possible to fix the power storage device to the mounting portion in the second direction, so that the power storage device can be fixed more firmly.

Further, the power storage device includes a power storage unit having a plurality of the power storage elements, and a support part that supports the power storage unit, and the first fixing part is arranged to stand up from the support part. You can also do this.

According to this, the power storage device includes a support portion that supports the power storage unit, and the first fixing portion is disposed upright from the support portion. In this way, by configuring the first fixing part to stand up from the support part that supports the power storage unit, the first fixing part can be easily formed.

Further, the power storage device may include a plurality of the power storage units, and the support portion may support the plurality of power storage units.

According to this, in the power storage device, the support section supports the plurality of power storage units. In this manner, by supporting the plurality of power storage units with the support portion, the plurality of power storage units can be fixed to the attached member at once. Thereby, a plurality of power storage units can be easily attached to the member to be attached. In addition, by attaching multiple power storage units to the target member at once rather than individually attaching the power storage units to the target member, multiple power storage units can be placed close to each other, which saves space. can be achieved.

Further, the support portion may include a third fixing portion to which the power storage unit is fixed.

According to this, in the power storage device, the support portion includes the third fixing portion to which the power storage unit is fixed. Thereby, by fixing the electricity storage unit to the support part, the electricity storage unit is fixed to the attached member via the support part and the first fixing part, so the electricity storage unit can be easily attached to the attached member. .

Furthermore, the fixing member is inserted into the through hole formed in the first fixing part and penetrates in the first direction, and is fixed to the attached member, and the fixing member is attached to both sides of the through hole. The portion may have a larger outer diameter than the inner diameter of the through hole.

According to this, the power storage device includes a fixing member that is inserted into the through hole of the first fixing part and is fixed to the attached member, and the fixing member has portions on both sides of the through hole. It has an outer diameter larger than the inner diameter. In this way, the fixing member has an outer diameter larger than the inner diameter of the through hole on both sides of the through hole of the first fixing part, so that the fixing member does not come out of the through hole of the first fixing part. It is possible to prevent this from happening. As a result, the fixing member can maintain a state attached to the first fixing part, so the work of fixing the first fixing part to the attached member with the fixing member can be easily performed, and the power storage device can be attached to the attached member. It can be easily attached to a mounting member.

Further, the power storage device includes a power storage element and is attached to an attached member, the first fixing portion being disposed at one end of the power storage device in a first direction and fixed to the attached member in the first direction. and a second fixing part that is disposed at the other end of the power storage device in the first direction and is fixed to a mounting part on which the power storage device is placed in a second direction intersecting the first direction. , may be provided.

According to this, the power storage device includes the first fixing part fixed to the attached member in the first direction at one end in the first direction, and the first fixing part fixed to the mounting member in the first direction. It includes a second fixing part that is fixed in a second direction. In this way, the power storage device is configured such that both ends in the first direction are fixed in different directions. Here, in the power storage device, it may be difficult to fix both ends in the same direction (for example, in the up-down direction) due to limitations in work space or the like. In other words, in a power storage device, the other end (for example, the front end) can be fixed in the second direction (for example, the vertical direction), but one end (for example, the back end) cannot be fixed in the second direction. There are cases where it is difficult. Therefore, one end portion of the power storage device is fixed to the attached member in the first direction (for example, the front-back direction). Thereby, the power storage device can be easily attached to the member to be attached.

Note that the present invention can be realized not only as such a power storage device, but also as a power storage device mounting member (tray) having fixing parts (first fixing part, second fixing part, third fixing part). can do.

According to the power storage device of the present invention, it can be easily attached to a member to be attached.

FIG. 1 is a front view showing the appearance of a vehicle equipped with a power storage facility according to an embodiment. FIG. 1 is a perspective view showing the appearance of a power storage facility according to an embodiment. FIG. 1 is a perspective view showing the internal configuration of a power storage facility according to an embodiment. FIG. 3 is a perspective view showing the configuration of a member to be attached to the exterior body according to the embodiment. FIG. 2 is a perspective view showing a configuration in which a power storage device according to an embodiment is attached to a member to be attached. FIG. 2 is a perspective view showing a state in which the power storage unit and tray of the power storage device according to the embodiment and the attached member are separated. FIG. 2 is a cross-sectional view showing a configuration in which a power storage device according to an embodiment is attached to a member to be attached. FIG. 3 is a cross-sectional view showing the configuration of the first fixing part according to the embodiment. FIG. 3 is a cross-sectional view showing a configuration in which the first fixing part according to the embodiment is fixed to the fixed part of the attached member. FIG. 2 is a front view showing that the power storage device according to the embodiment is configured to be removably attached to a member to be attached. FIG. 2 is a front view showing a configuration for cooling a power storage device according to an embodiment. FIG. 7 is a front view showing another example of a configuration for cooling the power storage device according to the embodiment.

Hereinafter, a power storage device according to an embodiment (and a modification thereof) of the present invention will be described with reference to the drawings. Note that the embodiments described below are all inclusive or specific examples. The numerical values, shapes, materials, components, arrangement positions and connection forms of the components, manufacturing steps, order of manufacturing steps, etc. shown in the following embodiments are merely examples, and do not limit the present invention. Moreover, each figure is a schematic diagram, and dimensions etc. are not necessarily shown strictly. Furthermore, in each figure, the same or similar components are designated by the same reference numerals.

In the following description and drawings, the traveling direction of the vehicle, the longitudinal direction of the power storage equipment, or the direction in which power storage units are lined up in one power storage device is defined as the X-axis direction. The width direction of the vehicle, the direction in which the power storage device is taken in and out of the vehicle, the longitudinal direction of the power storage unit, the depth direction of the power storage device or the power storage unit, or the fixing direction of the first fixing part of the power storage device is defined as the Y-axis direction. do. The vertical direction (vertical direction) of the vehicle or the power storage device, or the fixing direction of the second fixing portion of the power storage device is defined as the Z-axis direction. These X-axis direction, Y-axis direction, and Z-axis direction are directions that intersect with each other (orthogonal in this embodiment). Note that depending on the mode of use, the Z-axis direction may not be the vertical direction, but for convenience of explanation, the Z-axis direction will be described as the vertical direction below.

Furthermore, in the following description, for example, the X-axis plus direction indicates the arrow direction of the X-axis, and the X-axis minus direction indicates the opposite direction to the X-axis plus direction. The same applies to the Y-axis direction and the Z-axis direction. Furthermore, hereinafter, the Y-axis direction may also be referred to as a first direction, and the Z-axis direction may also be referred to as a second direction. Furthermore, expressions indicating relative directions or orientations, such as parallel and orthogonal, include cases where the directions or orientations are not strictly speaking. For example, when two directions are orthogonal, it does not only mean that the two directions are completely orthogonal, but also that they are substantially orthogonal, that is, there is a difference of only a few percent, for example. It also means to include.

(Embodiment)
[1 General description of power storage equipment 200]
First, a schematic configuration of power storage equipment 200 will be described. FIG. 1 is a front view showing the appearance of a vehicle 10 including a power storage facility 200 according to the present embodiment. FIG. 2 is a perspective view showing the appearance of power storage equipment 200 according to the present embodiment. FIG. 3 is a perspective view showing the internal configuration of power storage equipment 200 according to the present embodiment. Specifically, FIG. 3 is a diagram showing the internal configuration of power storage equipment 200 in FIG. 2 with top wall 211, side walls 213, 214, 216, and 217 of exterior body 210 removed. FIG. 4 is a perspective view showing the configuration of the attached member 220 of the exterior body 210 according to the present embodiment. Specifically, FIG. 4 is a diagram showing the configuration of the attached member 220 with the power storage device 300 removed from the power storage facility 200 of FIG. 3. As shown in FIG.

As shown in FIG. 1, the vehicle 10 is a railway vehicle for an electric railway, and includes a vehicle body 100 and a power storage facility 200. The vehicle body 100 is a main body portion of a railway vehicle. Note that examples of the railway vehicle include, in addition to trains, monorails, linear motor cars, and the like. The power storage facility 200 is a facility provided below the vehicle body 100, and is used for power storage, power supply, and the like. In other words, power storage equipment 200 is a power supply equipment that can charge electricity from the outside and discharge electricity to the outside. In this embodiment, two power storage facilities 200 are provided on both left and right sides (both sides in the Y-axis direction) of the bottom of the vehicle body 100. Note that the arrangement position and number of power storage equipment 200 are not particularly limited.

Further, in the present embodiment, power storage equipment 200 is used in a railway vehicle, but the use of power storage equipment 200 is not limited to a railway vehicle. For example, the power storage equipment 200 can also be used as a battery for driving or starting an engine of a mobile object such as an automobile, a motorcycle, a watercraft, a ship, a snowmobile, an agricultural machine, or a construction machine. Examples of the above-mentioned vehicle include an electric vehicle (EV), a hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle (PHEV), and a gasoline vehicle. Furthermore, the power storage equipment 200 can also be used as a stationary battery or the like used for home use or as a generator.

Next, power storage equipment 200 will be specifically described. As shown in FIG. 2, power storage equipment 200 includes an exterior body 210, and as shown in FIG. Note that the power storage equipment 200 stores control components for controlling charging and discharging of the power storage device 300, etc. in a control component storage section 210B inside the exterior body 210, and other equipment in the exterior body 210 (such as a fan 500 described below). ), but their illustration and detailed description will be omitted.

The exterior body 210 is a rectangular box-shaped member (battery box) that is elongated in the X-axis direction and constitutes the exterior body (container) of the power storage equipment 200, and includes an upper wall 211, a lower wall 212, and side walls 213 to 219. It has . Each wall member constituting these exterior bodies 210 may be made of any material, but for example, from the viewpoint of ensuring strength, stainless steel, aluminum, aluminum alloy, iron, plated steel plate, etc. It is made of a metal member.

The upper wall 211 is a wall that forms a ceiling (roof) placed above the exterior body 210, and is placed above the side walls 213 to 219. Specifically, the upper wall 211 is an elongated and rectangular plate-like member extending in the X-axis direction and whose outer edge is connected to the upper ends of the side walls 213, 214, 216 to 219. . The lower wall 212 is a wall that forms a bottom surface (floor surface) located at the lower part of the exterior body 210, and is located below the side walls 213 to 219. Specifically, the lower wall 212 is a long, rectangular plate-like member extending in the X-axis direction and disposed with its outer edge connected to the lower ends of the side walls 215 to 219.

The side walls 213 to 219 are side walls of the exterior body 210 that are arranged upright from the lower wall 212, and are arranged along the outer edge of the lower wall 212 so as to surround the lower wall 212. Specifically, the side wall 218 is a rectangular and flat member that forms the surface of the short side surface of the exterior body 210 on the X-axis plus direction side. The side wall 219 is a rectangular and flat member that forms a surface on the X-axis negative direction side among the short sides of the exterior body 210. The side walls 213 to 215 are rectangular and flat plate-like members that form the Y-axis negative direction side of the long side of the exterior body 210. That is, a side wall 215 extending in the X-axis direction is arranged above the lower wall 212 so as to face diagonally, and above the side wall 215, three side walls 213 and one side wall 214 arranged in the X-axis direction are arranged upright. ing. The side walls 216 and 217 are rectangular and flat plate-like members that form the Y-axis positive direction side among the long sides of the exterior body 210. That is, above the lower wall 212, three side walls 216 and one side wall 217 lined up in the X-axis direction are arranged upright.

The three side walls 213 and the three side walls 216 are each arranged to face the power storage device housing section 210A, and are configured to be removable (openable and closable) from the exterior body 210 to open and close the space inside the power storage device housing section 210A. This is the door that was opened. The side walls 214 and 217 are doors configured to be removable (openable and closable) from the exterior body 210, and are arranged to face the control component storage section 210B, and open and close the space within the control component storage section 210B.

Further, the three side walls 213 are each formed with an intake port 213a, and similarly, the three side walls 216 are each formed with an intake port 216a (not shown). Furthermore, an exhaust port 215a (not shown) is formed in the side wall 215. The intake ports 213a and 216a are air intake ports each having an opening for taking in outside air into the exterior body 210, and the exhaust port 215a has an opening for discharging the air inside the exterior body 210 to the outside. There is a formed air outlet. In other words, air outside the exterior body 210 is taken into the interior of the exterior body 210 through the intake ports 213a and 216a to cool the power storage device 300, etc., and air heated at that time is taken into the interior of the exterior body 210 through the exhaust ports 215a. By discharging to the outside of the body 210, the temperature rise inside the exterior body 210 is suppressed (see FIG. 11).

Here, as shown in FIGS. 3 and 4, the exterior body 210 has an attached member 220 on the inside to which the power storage device 300 is attached. The attached member 220 is a member consisting of a rectangular and flat plate-shaped portion that forms a power storage device accommodating portion 210A that is a storage space for the power storage device 300. In other words, the attached member 220 is a rack that accommodates the plurality of power storage devices 300 and supports (fixes) the plurality of power storage devices 300 by placing them thereon. Note that the members constituting the attached member 220 may be made of any material, but like the wall members constituting the exterior body 210, stainless steel, aluminum, aluminum alloy, iron, plated steel plate, etc. It is preferable that it is made of a high-strength material such as metal.

Specifically, the attached member 220 includes a partition section 221, a mounting section 222, and a fixed section 223. The partition portion 221 is a rectangular and flat plate-shaped portion parallel to the YZ plane that stands upright from the lower wall 212, and a plurality of partition portions 221 are arranged side by side in the X-axis direction. The partition part 221 has a function of supporting (fixing) the placing part 222 and partitioning between adjacent power storage devices 300 in the X-axis direction. The placing part 222 is a rectangular and flat part parallel to the XY plane, surrounded and fixed by the partition part 221 (or side wall 219) and the fixed part 223, and is fixed in the X-axis direction, the Y-axis direction, and A plurality of mounting parts 222 are arranged in a line in the Z-axis direction. Power storage device 300 is placed and fixed on placement portion 222 . The fixed portion 223 is a rectangular and flat plate-shaped portion parallel to the XZ plane that stands upright from the lower wall 212, and is arranged to extend in the X-axis direction at the center position of the exterior body 210 in the Y-axis direction. be done. Fixed portion 223 partitions adjacent power storage devices 300 in the Y-axis direction, and fixes power storage devices 300.

With this configuration, the partition part 221 (or side wall 219) on the Y-axis negative direction side, the mounting part 222, and the fixed part 223 form the power storage device housing part 210A that opens in the Y-axis negative direction, and the power storage device housing part 210A opens in the Y-axis negative direction. Power storage device 300 is arranged within device accommodating portion 210A. Similarly, the partition part 221 (or side wall 219) on the Y-axis positive direction side, the mounting part 222, and the fixed part 223 form a power storage device accommodating part 210A that opens in the Y-axis positive direction to accommodate the power storage device. Power storage device 300 is arranged within section 210A. Thereby, power storage device 300 is slidably arranged with respect to attached member 220 (see FIG. 10).

Note that all the partitions 221 may have the same shape, or some of the partitions 221 may have different shapes, such as different plate thicknesses, for example. The same applies to the mounting section 222 and the fixed section 223. Furthermore, the partition portion 221, the placing portion 222, and the fixed portion 223 are not limited to a rectangular and flat shape, but may be flat plate shapes other than rectangular shapes, may be curved, or may be frame-shaped. (frame shape) or rod shape.

[2 Description of configuration of power storage device 300 and attachment configuration to attached member 220]
Next, the configuration of power storage device 300 and the configuration for attaching power storage device 300 to attached member 220 will be described in detail. Note that the power storage devices 300 included in the power storage equipment 200 all have the same configuration, and the power storage device 300 on the Y-axis positive direction rotates the power storage device 300 on the Y-axis negative direction by 180 degrees around the Z-axis. It has been made possible. Therefore, below, the power storage device 300 on the negative side of the Y-axis of the power storage facility 200 will be described, and the description of the power storage device 300 on the positive side of the Y-axis will be omitted.

FIG. 5 is a perspective view showing the configuration of power storage device 300 according to the present embodiment in a state where it is attached to attached member 220. FIG. 6 is a perspective view showing a state in which the power storage unit 310 and tray 320 of the power storage device 300 according to the present embodiment and the attached member 220 are separated. FIG. 7 is a cross-sectional view showing a configuration in which power storage device 300 according to the present embodiment is attached to attached member 220. Note that since the power storage device 300 is attached to the mounting portion 222 and the fixed portion 223 of the attached member 220, the partition portion 221 of the attached member 220 is omitted in these figures.

As shown in FIG. 5, power storage device 300 includes a plurality of (two in this embodiment) power storage units 310 and a tray 320 on which the plurality of power storage units 310 are placed. Power storage unit 310 has a long shape in the Y-axis direction (first direction). The power storage device 300 is fixed to the fixed part 223 of the mounted member 220 at the first fixed part 330 of the tray 320, and is fixed to the mounting part 223 of the mounted member 220 at the second fixed part 340 of the tray 320. It is fixed at 222. That is, in the power storage device 300, the first fixing part 330 is fixed to the fixed part 223 in the Y-axis direction by the fixing member 410 whose axial direction is in the Y-axis direction, and the second fixing part 340 is fixed in the Y-axis direction. It is fixed to the mounting portion 222 in the Z-axis direction by a fixing member 420 that extends in the axial direction.

Further, each of the power storage units 310 is fixed to the tray 320 at a second fixing section 340 and a third fixing section 350 that the tray 320 has. That is, each of the power storage units 310 is fixed to the second fixing part 340 in the Z-axis direction by the fixing member 420, and fixed to the third fixing part 350 in the Z-axis direction by the fixing member 430 (see FIG. 7). There is. As a result, the power storage unit 310, the tray 320, and the mounting portion 222 of the attached member 220 are fixed in the second fixing portion 340. These fixed configurations will be explained in detail below.

[2.1 Description of configuration of power storage unit 310]
First, the configuration of power storage unit 310 will be explained. As shown in FIGS. 6 and 7, the power storage unit 310 includes an exterior case 311, a pair of external terminals 312, power storage device side fixing parts 313 and 314, a plurality of power storage elements 315, and a fan 316. ing. Note that the power storage unit 310 also includes a bus bar and the like that electrically connect the plurality of power storage elements 315, but illustration and description thereof are omitted. Further, the power storage unit 310 may also include a busbar frame for positioning the busbar, a spacer arranged between the power storage elements 315, etc., but illustrations and descriptions of these are also omitted.

The exterior case 311 is a substantially rectangular parallelepiped (box-shaped) container (module case) that constitutes the exterior body of the power storage unit 310 . That is, the exterior case 311 is disposed outside of the plurality of power storage elements 315 and the like, and protects the power storage elements 315 and the like from impacts by arranging them at predetermined positions. The material of the exterior case 311 is not particularly limited, but examples thereof include polycarbonate (PC), polypropylene (PP), polyethylene (PE), polystyrene (PS), polyphenylene sulfide resin (PPS), and polyphenylene ether (PPE (including modified PPE)). ), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polyetheretherketone (PEEK), tetrafluoroethylene perfluoroalkyl vinyl ether (PFA), polytetrafluoroethylene (PTFE), polyethersulfone (PES) ), ABS resin, or a composite material thereof, or metal coated with insulation. Exterior case 311 thereby prevents power storage element 315 and the like from coming into contact with external metal members and the like. Note that the shape of the exterior case 311 is not particularly limited, and may be any shape other than a rectangular parallelepiped shape, such as a polygonal column shape, a cylindrical shape, an elliptical column shape, an oblong column shape, etc.

A pair of external terminals 312 are all terminals (a positive external terminal and a negative external terminal) of power storage unit 310 for charging electricity from outside of power storage unit 310 and discharging electricity to the outside of power storage unit 310. External terminal 312 is arranged on a surface of the Y-axis direction (first direction) side of the end of power storage device 300 in the Y-axis direction (first direction). Specifically, the external terminal 312 is disposed on the surface of the Y-axis negative direction side of the end of the power storage unit 310 on the Y-axis negative direction, so as to protrude from the surface in the Y-axis negative direction. Although the material and shape of the external terminal 312 are not particularly limited, the external terminal 312 is made of, for example, aluminum, aluminum alloy, copper, or copper alloy, and is covered with a resin cover.

Note that the surface on the first direction side where the external terminals 312 are arranged does not have to be a strict surface (flat surface), and may have unevenness or openings in part. In other words, the surface on the first direction side can also be referred to as the part on the first direction side. Furthermore, a terminal bolt (not shown) is disposed on the external terminal 312 to protrude in the first direction for connection with an external cable (not shown).

The power storage device side fixing parts 313 and 314 are parts that are fixed to the tray 320 of the power storage unit 310, and are arranged to protrude from the exterior case 311 in the Y-axis direction. Specifically, the power storage device side fixing part 313 has a rectangular shape that protrudes in the Y-axis negative direction from the end of the exterior case 311 in the Y-axis negative direction and the Z-axis negative direction, and extends in the X-axis direction. It is a flat plate-shaped part. The power storage device side fixing part 313 has two circular through holes 313a at both ends in the X-axis direction, and is fixed to the second fixing part 340 of the tray 320 through the through holes 313a. be done. The power storage device side fixing part 314 is a rectangular and flat plate-shaped part that protrudes in the Y-axis positive direction from the end of the exterior case 311 in the Y-axis positive direction and the Z-axis negative direction, and extends in the X-axis direction. be. The power storage device side fixing part 314 has two circular through holes 314a at both ends in the X-axis direction, and is fixed to the third fixing part 350 of the tray 320 through the through holes 314a. be done.

The material of the power storage device side fixing parts 313 and 314 is not particularly limited, but may be made of, for example, metal such as stainless steel, aluminum, aluminum alloy, iron, or plated steel plate, or the same resin as the exterior case 311 described above. There is. Further, the arrangement position, size, and shape of the power storage device side fixing parts 313 and 314 are not particularly limited, and the power storage device side fixing parts 313 and 314 are fixed to the second fixing part 340 and the third fixing part 350 of the tray 320. Any possible arrangement position, size, and shape may be used. Furthermore, the exterior case 311 and the power storage device side fixing parts 313 and 314 may be formed integrally or may be formed separately. Furthermore, the power storage device side fixing parts 313 and 314 may have, for example, U-shaped notches instead of the through holes 313a and 314a.

The power storage element 315 is a secondary battery (single battery) that can charge and discharge electricity, and more specifically, is a nonaqueous electrolyte secondary battery such as a lithium ion secondary battery. . For example, the power storage element 315 includes a rectangular parallelepiped (square) container and a pair of electrode terminals (a positive terminal and a negative terminal). Further, inside the container, there is an electrode body (also referred to as a power storage element or a power generation element) formed by laminating a positive electrode plate, a negative electrode plate, and a separator, and a pair of electrode bodies that connect the electrode terminal and the electrode body. Current collectors (a positive electrode current collector and a negative electrode current collector), etc. are arranged, and an electrolytic solution (non-aqueous electrolyte) is sealed.

Note that FIG. 7 illustrates a configuration in which eight rectangular parallelepiped (prismatic) power storage elements 315 are housed in the exterior case 311, with four arranged in the X-axis direction and two in the Y-axis direction. . That is, four power storage elements 315 are lined up in the X-axis direction with their long sides facing the X-axis direction, and two sets of these four power storage elements 315 are lined up in the Y-axis direction. With this arrangement, air can be caused to flow between the long sides of opposing power storage elements 315 by a fan 316, which will be described later, and the power storage elements 315 can be efficiently cooled. Note that the shape, number, and arrangement position of the power storage elements 315 are not particularly limited. Furthermore, the power storage element 315 is not limited to a non-aqueous electrolyte secondary battery, and may be a secondary battery other than a non-aqueous electrolyte secondary battery, or a capacitor. Furthermore, the power storage element 315 may be a primary battery that can use the stored electricity without having to be charged by the user, instead of being a secondary battery. Furthermore, the power storage element 315 may be a battery using a solid electrolyte.

Fan 316 is an air blower disposed at the end of power storage unit 310 on the Y-axis positive direction side. In the present embodiment, the fan 316 is arranged close to or in contact with an upright portion 322 of a tray 320, which will be described later, and is arranged from the negative Y-axis side of the power storage unit 310 to the positive Y-axis side. , to supply air. Note that although the gas sent by the fan 316 is air in this embodiment, it may also be a medium other than air such as nitrogen, compressed air, nitrogen, cold air cooled by a cooler, etc. .

In addition to the above configuration, the power storage unit 310 also includes electrical equipment (not shown) such as a circuit board and a relay for monitoring the charging state and discharging state of the power storage element 315, and a control terminal ( (not shown) is arranged on the front surface (the surface on the negative side of the Y-axis). Thereby, like the external terminal 312, the control terminal can also be accessed from the front surface.

Note that the power storage unit 310 may not include the exterior case 311 and may have a configuration in which the power storage element 315 is restrained by side plates and end plates. In this case, the external terminal 312, the power storage device side fixing parts 313 and 314, and the fan 316 will be arranged on the side plate, end plate, or other member.

[2.2 Description of configuration of tray 320]
Next, the configuration of the tray 320 will be explained. The tray 320 is a mounting table on which the power storage unit 310 is placed and supported, and is made of, for example, metal such as stainless steel, aluminum, aluminum alloy, iron, or plated steel plate, or the same resin as the above-mentioned exterior case 311. It is formed. Specifically, as shown in FIGS. 6 and 7, the tray 320 includes a support section 321 that supports a plurality of (two in this embodiment) power storage units 310, and a support section 321 that stands upright from the support section 321. and an upright portion 322. The support portion 321 is a rectangular and flat plate-shaped portion that is disposed below the power storage unit 310 (in the negative Z-axis direction) and on which the power storage unit 310 is placed. The support part 321 has a second fixing part 340 at the end on the Y-axis minus direction side, and has a third fixing part 350 at the end on the Y-axis plus direction side.

The second fixing part 340 has a through hole 321a penetrating in the Z-axis direction at a position opposite to a through-hole 313a penetrating in the Z-axis direction formed in the power storage device side fixing part 313 of the power storage unit 310. . That is, the second fixing part 340 has four circular through holes 321a lined up in the X-axis direction. In addition, in the attached member 220, the mounting portion 222 has four Z-axis lines aligned in the It has a circular through hole 222a that penetrates in the direction.

As a result, as shown in FIG. 7, the fixing member 420, such as a metal bolt, is inserted into the through hole 313a, the through hole 321a, and the through hole 222a, and is screwed into a fixing member 421, such as a metal nut. By doing so, the power storage device side fixing part 313, the second fixing part 340, and the mounting part 222 are fixed. In this way, the second fixing section 340 fixes the power storage unit 310 and the mounting section 222 in the Z-axis direction (second direction intersecting the first direction). Note that the second fixing portion 340 may have, for example, a U-shaped notch instead of the through hole 321a. The same applies to the through hole 222a of the mounting portion 222. The second fixing section 340 is also an example of a third fixing section to which the power storage unit 310 is fixed.

The third fixing part 350 has a protrusion 321b protruding in the Z-axis direction at a position corresponding to a through hole 314a formed in the power storage device side fixing part 314 of the power storage unit 310 and penetrating in the Z-axis direction. That is, the third fixing part 350 has four cylindrical protrusions 321b arranged in the X-axis direction, with the Z-axis direction being the axial direction. Further, the protrusion 321b is formed with a male threaded portion, and as shown in FIG. 7, the protrusion 321b is inserted into the through hole 314a and is screwed into, for example, a metal nut as the fixing member 430. Thereby, the power storage device side fixing part 314 and the third fixing part 350 are fixed, so that the power storage unit 310 is fixed to the third fixing part 350 in the Z-axis direction (second direction).

The upright portion 322 is a rectangular and flat plate that is disposed on the positive Y-axis side of the power storage unit 310 and is fixed to the fixed portion 223 of the attached member 220, and extends in the X-axis direction and parallel to the XZ plane. It is a part. The upright portion 322 has a through hole 322a at a position corresponding to (opposed to) the protrusion 321b of the support portion 321. That is, the upright portion 322 has four rectangular through holes 322a lined up in the X-axis direction. This through hole 322a is a hole for inserting a tool when screwing the fixing member 430 onto the protrusion 321b in the third fixing part 350. In other words, as described above, since the fan 316 is placed close to or in contact with the upright portion 322, it is difficult to screw the fixing member 430 onto the protrusion 321b from the Z-axis positive direction. Can not. Therefore, by performing the work through the through hole 322a, the work can be performed efficiently.

Further, the upright portion 322 has a through hole 322b at a position corresponding to (opposed to) the fan 316 of the power storage unit 310. That is, the upright portion 322 has two rectangular through holes 322b arranged above the through hole 322a (in the Z-axis plus direction) and aligned in the X-axis direction. Furthermore, in the attached member 220 as well, the fixed portion 223 has two rectangular through holes 223b aligned in the X-axis direction at positions corresponding to the through holes 322b of the upright portion 322. This allows the air blown by the fan 316 to flow through the through holes 322b and 223b. Note that, as described above, since the fan 316 is disposed close to or in contact with the upright portion 322, the fan 316 suppresses leakage of air to locations other than the through holes 322b and 223b, and the power storage unit. Air can be supplied to the Y-axis positive direction side of 310.

Further, the upright portion 322 has two first fixing portions 330 arranged in the Z-axis direction at each end on both sides in the X-axis direction. Furthermore, in the attached member 220, the fixed portion 223 has a circular through hole 223a that penetrates in the Y-axis direction at a position corresponding to the first fixed portion 330. As a result, a metal bolt, for example, as the fixing member 410 is inserted into the first fixing part 330 and the through hole 223a, and is screwed with, for example, a metal nut, so that the first fixing part 330 and the fixed part 223 is fixed. In this way, the first fixing part 330 is arranged upright from the support part 321. The first fixing part 330 is disposed at the end of the power storage device 300 in the Y-axis direction (first direction) (the end on the Y-axis positive direction side), and is attached to the attached object in the Y-axis direction (first direction). It is fixed to member 220.

That is, external terminal 312 is arranged on the first direction side surface of one end of power storage device 300 in the first direction, and first fixing part 330 is arranged at the other end of power storage device 300 in the first direction. , is fixed to the attached member 220 in the first direction. Alternatively, the first fixing part 330 is disposed at one end of the power storage device 300 in the first direction and is fixed to the attached member 220 in the first direction, and the second fixing part 340 is arranged at one end of the power storage device 300 in the first direction. It can also be said that it is arranged at the other end and fixed to the mounting section 222 in the second direction. The configuration of this first fixing part 330 will be explained in detail below.

[2.3 Description of configuration of first fixing part 330]
FIG. 8 is a cross-sectional view showing the configuration of the first fixing part 330 according to the present embodiment. Specifically, FIG. 8(a) shows the state before the fixing member 410 is inserted into the first fixing part 330, and FIG. 8(b) shows the state before the fixing member 410 is inserted into the first fixing part 330. 8(c) shows a state after the fixing member 410 has been inserted into the first fixing part 330. FIG. FIG. 9 is a sectional view showing a configuration in which the first fixing part 330 according to the present embodiment is fixed to the fixed part 223 of the attached member 220. Specifically, (a) in FIG. 9 shows a state before the first fixed part 330 is fixed to the fixed part 223, and (b) in FIG. 9(c) shows a state after the first fixing part 330 is fixed to the fixed part 223. FIG.

As shown in FIG. 8(a), the first fixing part 330 has a first plate part 331 on the Y-axis plus direction side, a second plate part 332 on the Z-axis plus direction side, and has a second plate part 332 on the Z-axis plus direction side. It has a third plate part 333 on the minus direction side, and has a fourth plate part 334 on the Z-axis minus direction side. The first plate portion 331 is a rectangular and flat plate-shaped portion that extends from the main body portion of the upright portion 322 and is parallel to the XZ plane. The second plate portion 332 is a rectangular and flat plate-shaped portion parallel to the XY plane that extends from the edge of the first plate portion 331 on the Z-axis plus direction side toward the Y-axis minus direction side. The third plate part 333 is a rectangular and flat plate-shaped part parallel to the XZ plane that extends from the edge of the second plate part 332 on the Y-axis minus direction side to the Z-axis minus direction side. The fourth plate portion 334 is a rectangular and flat portion parallel to the XY plane that extends from the edge of the third plate portion 333 on the Z-axis negative side toward the Y-axis positive direction, and is parallel to the XY plane. It is connected to the. As a result, the first fixing portion 330 is a rectangular tube-shaped portion having a square ring shape (rectangular shape) when viewed from the X-axis direction.

Further, a circular through hole 331a passing through in the Y-axis direction is formed in the first plate part 331, and a circular through hole 331a is formed in the third plate part 333 at a position opposite to the through hole 331a of the first plate part 331. , a circular through hole 333a penetrating in the Y-axis direction is formed. That is, the through hole 331a and the through hole 333a are through holes that penetrate the first fixing part 330 in the Y-axis direction (first direction). A female screw portion is formed in the through hole 333a of the third plate portion 333.

The fixing member 410 includes a columnar shaft 411 extending in the Y-axis direction, a head 412 connected to the end of the shaft 411 on the Y-axis negative direction, and an end of the shaft 411 on the Y-axis positive direction. and a male threaded portion 413 connected to the portion. In other words, the fixing member 410 is a bolt whose axial direction is the Y-axis direction and has a male threaded portion at its tip. In addition, in FIGS. 8 and 9, the shaft portion 411 and the male threaded portion 413 of the fixing member 410 are shown in a cross-sectional view, and the head portion 412 is shown in a side view.

Here, the male threaded portion 413 is formed in a shape and size that allows it to be screwed into the female threaded portion of the through hole 333a of the third plate portion 333. Therefore, the male threaded portion 413 has an outer diameter larger than the inner diameter of the through hole 333a. Moreover, since the head 412 has a larger outer diameter than the male threaded portion 413, the head 412 also has a larger outer diameter than the inner diameter of the through hole 333a. The shaft portion 411 has an outer diameter smaller than the inner diameter of the through hole 333a.

In such a configuration, as shown in FIG. 8(b), the male threaded portion 413 of the fixing member 410 is screwed into the female threaded portion of the through hole 333a, so that the fixing member 410 is inserted into the through hole 333a. It will be done. Then, as shown in FIG. 8C, the male threaded portion 413 passes through the through hole 333a, and the end of the shaft portion 411 is inserted into the through hole 333a. In this state, the portions of the fixing member 410 on both sides of the through hole 333a (the head 412 and the male threaded portion 413) have an outer diameter larger than the inner diameter of the through hole 333a.

Then, as shown in FIG. 9A, the first fixing section 330 is arranged to overlap the fixed section 223 of the attached member 220. Here, the through hole 223a of the fixed part 223 has the same inner diameter as the through hole 331a of the first plate part 331, and is arranged at a position corresponding to (overlapping position) the through hole 331a. It is formed. Furthermore, a fixing member 414 is fixed to the fixed portion 223 . The fixing member 414 is, for example, a metal nut having a through hole 414a formed with a female threaded portion having a shape and size that can be screwed into the male threaded portion 413 of the fixing member 410.

Then, as shown in FIG. 9(b), the male screw portion 413 of the fixing member 410 is inserted into the through hole 331a of the first plate portion 331, and further inserted into the through hole 223a of the fixed portion 223. Ru. Finally, as shown in FIG. 9(c), the male threaded portion 413 of the fixing member 410 is screwed into the female threaded portion of the through hole 414a of the fixing member 414, so that the fixing member 410 is attached to the fixed part. 223. In this way, the fixing member 410 is fixed to the attached member 220 in the Y-axis direction (first direction). Note that the first fixed part 330 may have, for example, a U-shaped notch instead of the through hole 331a, and the fixed part 223 may have, for example, a U-shaped notch instead of the through hole 223a. It may have a notch.

[2.4 Description of the configuration for attaching and detaching the power storage device 300 to the attached member 220]
Next, a description will be given of how power storage device 300 is detachably (slidably) attached to attached member 220. FIG. 10 is a front view showing that the power storage device 300 according to the present embodiment is configured to be detachable (slidable) relative to the attached member 220. Note that FIG. 10 is a diagram corresponding to FIG. 1, but shows power storage device 300 and attached member 220 inside exterior body 210 as seen through exterior body 210 of power storage equipment 200.

As shown in FIG. 10, each power storage device 300 is configured to be removable (slidable) with respect to vehicle 10 along the width direction of vehicle 10. That is, on the back side (fixed part 223 side) of the power storage device 300, the power storage device 300 is attached to and removed from the fixed part 223 in the Y-axis direction (first direction) by attaching and detaching the first fixed part 330 to the fixed part 223. It can be attached and detached from the Furthermore, on the front side of the power storage device 300 (on the side wall 213 or side wall 216 side of the exterior body 210), the power storage device 300 can be attached to and detached from the attached member 220. Thereby, the power storage device 300 can be removed from the attached member 220 or attached to the attached member 220.

Next, a cooling configuration of power storage device 300 will be described. FIG. 11 is a front view showing a configuration for cooling power storage device 300 according to the present embodiment. Note that, similarly to FIG. 10, FIG. 11 shows the power storage device 300, the attached member 220, and the fan 500 inside the exterior body 210, as seen through the exterior body 210 of the power storage equipment 200. Further, in FIG. 11, the flow of air for cooling power storage device 300 is indicated by arrow W. In FIG.

As shown in FIG. 11, power storage equipment 200 includes a fan 500 attached to fixed portion 223 of attached member 220. As shown in FIG. Fan 500 is a blower device that blows air inside power storage equipment 200 to the outside of power storage equipment 200 . That is, air outside the power storage equipment 200 (outside air) is taken in by the fan 316 of the power storage unit 310 through the intake ports 213a and 216a of the side walls 213 and 216 of the exterior body 210, and the taken air is transferred to the power storage unit. It is heated by the heat generated by 310. Then, the air passes through the through hole 322b of the upright portion 322 of the tray 320 and the through hole 223b of the fixed portion 223, and is directed outward of the exterior body 210 from the exhaust port 215a of the side wall 215 by the fan 500. Exhausted.

Further, as shown in FIG. 12, power storage devices 300 may be arranged at different levels. FIG. 12 is a front view showing another example of a configuration for cooling power storage device 300 according to the present embodiment. Although FIG. 12 shows the power storage equipment 200 on the negative side of the Y-axis shown in FIG. 11 in an enlarged manner, the power storage equipment 200 on the positive side of the Y-axis also has a similar configuration.

As shown in FIG. 12, power storage devices 300 on the positive side of the Y-axis and power storage devices 300 on the negative side of the Y-axis are arranged at different levels (with different heights in the Z-axis direction). Specifically, in the attached member 220, the height position of the mounting portion 222 is different between the Y-axis positive direction side and the Y-axis negative direction side.

As a result, the air blown by the fan 316 of the power storage device 300 on the positive side of the Y-axis and the air blown by the fan 316 of the power storage device 300 on the negative side of the Y-axis do not collide with each other. Air can flow. In addition, when one fixed part 223 becomes a fixed part shared by power storage device 300 on the Y-axis positive direction side and power storage device 300 on the Y-axis negative direction side, the fixed position of both power storage devices 300 is can be shifted. Therefore, interference between the first fixing parts 330 of both power storage devices 300 can be suppressed.

Note that in the above embodiments (including the example shown in FIG. 12), eaves may be provided on the air flow path in order to improve the air flow. For example, an eaves may be provided near the air outlet (through hole 223b) of at least one of the fixed portions 223 on the Y-axis negative direction side and the Y-axis positive direction side to direct the flow of air downward.

[3. Explanation of effects]
As described above, according to the power storage device 300 according to the embodiment of the present invention, the external terminal 312 is provided on the first direction side surface of one end in the first direction (Y-axis direction), and The end portion is provided with a first fixing portion 330 that is fixed to the attached member 220 in the first direction. Here, in the present embodiment, in the power storage device 300, in order to facilitate the connection between the external terminals 312, etc., on the first direction side surface (front side surface) of one end in the first direction, External terminals 312 are arranged. However, in this case, it is difficult to fix the power storage device 300 to the attached member 220 in a direction different from the first direction (for example, the vertical direction or the horizontal direction) on the other end side (inner side) in the first direction. Become. For this reason, power storage device 300 is provided with a first fixing portion 330 that is fixed to attached member 220 in the first direction (front-back direction). Thereby, power storage device 300 can be fixed to attached member 220 by fixing to attached member 220 in the first direction, so power storage device 300 can be easily attached to attached member 220.

Power storage device 300 also includes a second fixing section 340 that is fixed to mounting section 222 in the second direction (Z-axis direction). Here, when installing the power storage device 300 on the mounting portion 222, if the installation work can be done from the second direction (vertical direction), it is easier to install the power storage device 300 by performing the installation work from the second direction. can be fixed to. Therefore, the second fixing part 340 is fixed to the mounting part 222 in the second direction. Accordingly, in addition to being fixed to the attached member 220 in the first direction, it is also possible to fix the power storage device 300 to the mounting portion 222 in the second direction, so that the power storage device 300 can be fixed more firmly.

Further, the power storage device 300 includes a support portion 321 that supports the power storage unit 310, and the first fixing portion 330 is disposed upright from the support portion 321. In this way, by configuring the first fixing part 330 to stand up from the support part 321 that supports the power storage unit 310, the first fixing part 330 can be easily formed.

Furthermore, in power storage device 300 , support portion 321 supports a plurality of power storage units 310 . In this manner, by supporting the plurality of power storage units 310 with the support portion 321, the plurality of power storage units 310 can be fixed to the attached member 220 all at once. Thereby, the plurality of power storage units 310 can be easily attached to the attached member 220. Furthermore, by attaching a plurality of power storage units 310 to the attachment target member 220 at once rather than attaching the power storage units 310 to the attachment target member 220 individually, the multiple power storage units 310 can be arranged close to each other. , it is possible to save space.

Furthermore, in the power storage device 300, the support portion 321 includes a third fixing portion 350 to which the power storage unit 310 is fixed. As a result, by fixing the power storage unit 310 to the support part 321, the power storage unit 310 is fixed to the attached member 220 via the support part 321 and the first fixing part 330, so that the power storage unit 310 is fixed to the attached member 220 can be easily attached.

Furthermore, the power storage device 300 includes a fixing member 410 that is inserted into the through hole 333a of the first fixing part 330 and fixed to the attached member 220, and the fixing member 410 has parts on both sides of the through hole 333a. It has an outer diameter larger than the inner diameter of the through hole 333a. In this way, the fixing member 410 has the outer diameter larger than the inner diameter of the through hole 333a at both sides of the through hole 333a of the first fixing part 330. 330 can be prevented from coming off through the through hole 333a. This allows the fixing member 410 to remain attached to the first fixing part 330, so that the work of fixing the first fixing part 330 to the attached member 220 using the fixing member 410 can be easily performed. . It is especially effective when working in narrow spaces. In other words, if you try to insert a regular bolt after placing the power storage device 300, there is a risk of dropping the bolt, and if the bolt is dropped, it will be difficult to retrieve it, and there is a risk of short circuit, so it is not recommended to work in a narrow space. is difficult. Therefore, with the above configuration, work can be easily performed in a narrow space, and power storage device 300 can be easily attached to attachment target member 220.

Further, the power storage device 300 includes a first fixing portion 330 fixed to the attached member 220 in the first direction at one end in the first direction, and a first fixing portion 330 fixed to the attached member 220 in the first direction, and a first fixing portion 330 fixed to the attached member 220 in the first direction. A second fixing section 340 fixed to the mounting section 222 is provided. In this way, power storage device 300 has a configuration in which both ends in the first direction are fixed in different directions. Here, in power storage device 300, it may be difficult to fix both ends in the same direction (for example, in the up-down direction) due to limitations in work space or the like. In other words, as in this embodiment, the other end (front end) of power storage device 300 can be fixed in the second direction (vertical direction), but one end (rear end) can be fixed in the second direction (vertical direction). There are cases where it is difficult to fix the device depending on the direction. Therefore, one end portion of power storage device 300 is fixed to attached member 220 in the first direction (front-back direction). Thereby, power storage device 300 can be easily attached to attached member 220.

[4 Description of modification]
Although the power storage device 300 according to the embodiment of the present invention has been described above, the present invention is not limited to this embodiment. In other words, the embodiments disclosed this time are illustrative in all respects, and the scope of the present invention is indicated not by the above description but by the claims, and within the meaning and range equivalent to the claims. Includes all changes.

For example, in the embodiment described above, as an example of the external terminal included in the power storage device 300, a power storage unit that is disposed on the Y-axis direction side surface of one end of the power storage unit 310 in the Y-axis direction so as to protrude from the surface. The external terminal 312 of 310 is illustrated as an example. However, the external terminal 312 may be disposed on the Y-axis side surface of one end of the power storage unit 310 in the Y-axis direction in a recessed state from the surface. In addition, if the electrode terminal of the power storage element 315 included in the power storage unit 310 is arranged on the surface of the one end in the Y-axis direction, such as protruding from the surface on the Y-axis direction side, and constitutes the external terminal 312, the electrode terminal The terminal may be illustrated as an example of an external terminal included in power storage device 300. Furthermore, the power storage device 300 includes a general terminal connected to the external terminals of the plurality of power storage units 310, and the general terminal is arranged on the Y-axis direction side surface of one end of the power storage device 300 in the Y-axis direction. If so, the general terminal may be exemplified as an example of an external terminal included in power storage device 300. The external terminal provided in power storage device 300 may be any terminal disposed on the surface of one end of power storage device 300 in the Y-axis direction (first direction) on the Y-axis direction (first direction) side. Furthermore, the external terminal included in power storage device 300 may not be arranged on the surface of one end of power storage device 300 in the Y-axis direction (first direction) on the Y-axis direction (first direction) side.

Further, in the embodiment described above, the method of fixing the power storage device 300 and the attached member 220 in the first fixing part 330 is to use bolts and nuts. However, the method of fixing in the first fixing part 330 is not limited to fixing with bolts and nuts, but may also be fixing with screws, engagement, fitting, adhesive, etc. Further, the shape of the first fixing part is not particularly limited, and may be any shape as long as it can be fixed. The same applies to the method of fixing the second fixing part 340 and the third fixing part 350.

Further, in the above embodiment, the first direction, which is the fixing direction of the first fixing part 330, and the second direction, which is the fixing direction of the second fixing part 340, are orthogonal directions. However, the first direction and the second direction need only be directions that intersect (different directions); for example, the first direction may be a direction tilted from the Y-axis direction (horizontal direction), and the second direction may be The direction may be inclined from the Z-axis direction (vertical direction).

Further, in the embodiment described above, the second fixing section 340 is fixed to the mounting section 222 of the attached member 220. However, the second fixing part 340 may be fixed to a member other than the mounting part 222 of the member to be attached 220 (such as the partition part 221), or may be fixed to a member other than the member to be attached 220. Good too. Alternatively, power storage device 300 may not include second fixing portion 340 and may not be fixed in the second direction.

Further, in the above embodiment, the power storage device 300 includes two power storage units 310, but the number of power storage units 310 that the power storage device 300 has is not limited to two, and may be three or more. That's fine, just one.

Further, in the embodiment described above, the power storage unit 310 is supported and fixed by the support section 321 of the tray 320 at the second fixing section 340. However, although the power storage unit 310 is supported by the support part 321, it may be fixed to a member other than the support part 321, such as the mounting part 222 of the attached member 220, or the support part 321 may be The power storage unit 310 may be directly placed and fixed on the mounting section 222, or may not be fixed on the mounting section 222 either.

Further, in the embodiment described above, the first fixing part 330 is arranged upright from the support part 321. However, the first fixing part 330 does not have to have a shape that stands up from the support part 321. For example, the first fixing part 330 may be a member such as a bar or block that extends (projects) in the X-axis direction, and its shape is not particularly limited.

Furthermore, in the embodiment described above, the support portion 321 includes the third fixing portion 350 to which the power storage unit 310 is fixed. However, the support part 321 does not need to have the third fixing part 350.

Further, in the embodiment described above, the support portion 321 is a member that supports the power storage unit 310 by placing it thereon. However, the support portion 321 may be configured to support the power storage unit 310 by suspending the power storage unit 310.

Furthermore, in the embodiment described above, power storage device 300 is arranged to be detachable (slidable) in the width direction of vehicle 10 . However, power storage device 300 may be arranged to be detachable (slidable) in the longitudinal direction of vehicle 10. This also allows power storage device 300 to be removed or attached from the front or rear side of vehicle 10.

Further, in the embodiment described above, all power storage devices 300 (all power storage units 310 and all trays 320) have the above configuration. However, any power storage device 300 (any power storage unit 310 or any tray 320) may not have the above configuration.

Further, forms constructed by arbitrarily combining the above embodiments and the above modifications are also included within the scope of the present invention.

Further, the present invention can be realized not only as such a power storage device 300 but also as a power storage device mounting member (tray 320).

INDUSTRIAL APPLICATION This invention is applicable to the electrical storage device etc. which have electrical storage elements, such as a lithium ion secondary battery.

10 Vehicle 100 Vehicle main body 200 Power storage equipment 210 Exterior body 210A Power storage device housing 210B Control component housing 211 Upper wall 212 Lower wall 213, 214, 215, 216, 217, 218, 219 Side wall 213a, 216a Intake port 215a Exhaust port 220 Attached member 221 partition portion 222 deducted portion 222a, 223a, 223a, 314a, 314, 321a, 322a, 331a, 333a, 414A penetration portion 300 storage device 310 storage unit 311 outer terminal 313 external terminal 313 , 314 Power storage device side fixing part 315 Power storage element 316, 500 Fan 320 Tray 321 Support part 321b Projection 322 Standing part 330 First fixing part 331 First plate part 332 Second plate part 333 Third plate part 334 Fourth plate part 340 Second fixing part 350 Third fixing part 410, 414, 420, 421, 430 Fixing member 411 Shaft part 412 Head 413 Male screw part

Claims (10)

A power storage device that includes a power storage element and is attached to an attached member,
an external terminal disposed on a surface of one end in the first direction of the power storage device on the first direction side;
a first fixing part disposed at the other end of the power storage device in the first direction and fixed to the attached member in the first direction;
The power storage device includes:
a power storage unit having a plurality of the power storage elements;
a tray having a support part that supports the electricity storage unit,
A power storage device in which a portion of the tray located closer to the external terminal than the attached member is fixed to the attached member by the first fixing portion. A power storage device that includes a power storage element and is attached to an attached member,
an external terminal disposed on a surface of one end in the first direction of the power storage device on the first direction side;
a first fixing part disposed at the other end of the power storage device in the first direction and fixed to the attached member in the first direction;
The power storage device includes:
a power storage unit having a plurality of the power storage elements;
a tray having a support part that supports the electricity storage unit,
The tray is fixed to the attached member by the first fixing part,
The power storage device further includes a second fixing portion that is fixed to the mounting portion on which the power storage device is placed in a second direction intersecting the first direction.
Power storage device. A power storage device that includes a power storage element and is attached to an attached member,
a first fixing part disposed at one end of the power storage device in the first direction and fixed to the attached member in the first direction;
a second fixing part disposed at the other end of the power storage device in the first direction and fixed to a mounting part on which the power storage device is placed in a second direction intersecting the first direction; Prepare,
The power storage device includes:
a power storage unit having a plurality of the power storage elements;
a tray having a support part that supports the electricity storage unit,
The tray is fixed to the attached member by the first fixing part. The power storage device. The power storage device according to any one of claims 1 to 3, wherein the tray includes an upright part that stands up from the support part. The power storage device according to claim 4, wherein the first fixing part is arranged in the upright part. A power storage device that includes a power storage element and is attached to an attached member,
an external terminal disposed on a surface of one end in the first direction of the power storage device on the first direction side;
a first fixing part disposed at the other end of the power storage device in the first direction and fixed to the attached member in the first direction;
The power storage device includes:
a power storage unit having a plurality of the power storage elements;
a tray having a support part that supports the electricity storage unit,
The tray is fixed to the attached member by the first fixing part,
The power storage device includes a plurality of the power storage units,
The support section supports the plurality of power storage units.
Power storage device. The power storage device according to any one of claims 1 to 6, wherein the support portion has a third fixing portion to which the power storage unit is fixed. The power storage device according to any one of claims 1 to 7, wherein the first fixing portion has a through hole penetrating in the first direction. A power storage device that includes a power storage element and is attached to an attached member,
a first fixing part disposed at one end of the power storage device in the first direction and fixed to the attached member in the first direction;
a second fixing part disposed at the other end of the power storage device in the first direction and fixed to a mounting part on which the power storage device is placed in a second direction intersecting the first direction; Prepare,
The first fixing portion has a through hole penetrating in the first direction. The power storage device. A power storage device that includes a power storage element and is attached to an attached member,
an external terminal disposed on a surface of one end in the first direction of the power storage device on the first direction side;
a first fixing part disposed at the other end of the power storage device in the first direction and fixed to the attached member in the first direction;
The power storage device includes:
a power storage unit having a plurality of the power storage elements;
a tray having a support part that supports the electricity storage unit,
The tray is fixed to the attached member by the first fixing part,
A through hole penetrating in the first direction is formed in the first fixing part,
The power storage device further includes a fixing member inserted into the through hole and fixed to the attached member,
The fixing member has portions located on both sides of the through hole in the first direction having an outer diameter larger than an inner diameter of the through hole.
Power storage device.

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