TWI789715B - Base member and battery unit - Google Patents

Abstract

The base member of the present invention is a base member for a battery unit that can be fixed to a battery unit that can be installed at an installation position, and includes: a bottom member having a bottom surface that can be in contact with an installation surface at an installation position; and side members. , extending from the edge of the bottom member along a first direction intersecting the bottom surface. The bottom member includes a first fixing hole capable of fixing the base member at the installation position by the first fixing member inserted from the first direction. The side member includes a second fixing hole capable of fixing the battery device to the base member by the second fixing member inserted from the second direction along the bottom surface.

Description

Base member and battery unit

The invention relates to a base component and a storage battery unit.

Patent Document 1 discloses a battery device including a battery unit, a junction box, a power conditioner, and a frame holding them. In the battery device described above, the legs of the frame are fixed at predetermined installation positions by anchor bolts.

[Prior art literature]

[Patent Document]

[Patent Document 1] Japanese Patent Laid-Open No. 2016-096082

In the storage battery device, the legs of the frame protrude outward from the main body of the frame when viewed in the vertical direction. Therefore, the area required for installation of the storage battery device may increase and the appearance may be impaired.

The object of the present disclosure is to provide a base member, and a battery unit including the base member. When the base member is applied to a battery unit, the appearance of the battery unit is not damaged, and the need for installation of the battery unit can be suppressed. area.

A base member according to an example of the present disclosure is a base member capable of fixing the battery unit in a battery device that can be installed at the installation position, and includes a bottom member having a bottom member that can be in contact with the installation surface of the installation position. a bottom surface; and a side member extending from an edge of the bottom member along a first direction intersecting the bottom surface, the bottom member comprising: a first fixing hole capable of The first fixing member inserted in the first direction fixes the base member at the setting position, the side member includes: a second fixing hole, and the second fixing hole can be used from the first fixing hole along the bottom surface The second fixing member inserted in two directions fixes the battery device to the base member.

Also, a battery unit according to an example of the present disclosure includes: the base member; and the battery device fixed to the base member and installed by fixing the base member at the installation position.

According to the base member, the bottom member includes a first fixing hole capable of fixing the base member at the installation position by a first fixing member inserted from a first direction, and the side member includes a second fixing hole capable of being inserted in a second direction along the bottom surface. The second fixing member fixes the battery device to the second fixing hole of the base member. With this structure it is possible to A base member that, when applied to a battery cell, does not impair the appearance of the battery cell and can suppress an area required for installation of the battery cell.

According to the battery unit, the base member can realize a battery unit whose appearance is not damaged and whose installation area can be suppressed.

1: battery unit

2: Battery device

10: Battery

20: Shell

21: Ontology

22: Fifth fixing hole

30: base member

31: Bottom member

32: side member

33: bottom surface

34: The first fixing hole

35: drain hole

36: storage department

37: Second fixing hole

38: The third fixing hole

39: The fourth fixing hole

40: Control unit

41: Positioning recess

42: positioning protrusion

100: Concrete foundation

101: upper surface

110: anchor bolt

120: Nut

130: solid structure

321: First side member

322: Second side member

351, 352: side part

CL1, CL2: center line

FIG. 1 is a perspective view showing a battery unit according to an embodiment of the present disclosure.

Fig. 2 is a perspective view showing a base member of the battery unit in Fig. 1 .

FIG. 3 is a plan view of the base member of FIG. 2 .

Fig. 4 is a schematic cross-sectional view showing a state in which the base member of Fig. 2 is fixed at an installation position.

Fig. 5 is an enlarged perspective view showing a first side member of the base member of Fig. 2 .

Fig. 6 is a perspective view showing a second side member of the base member of Fig. 2 .

FIG. 7 is a schematic cross-sectional view showing a state in which the storage battery device 2 is fixed to the base member of FIG. 2 .

Hereinafter, an example of the present disclosure will be described with reference to the accompanying drawings. Furthermore, in the following description, terms indicating specific directions or positions (for example, terms including "up", "down", "right", and "left") are used as needed, but the use of these terms is To facilitate understanding of this disclosure with reference to the drawings, no limitation of these terms meaning to define the technical scope of the present disclosure. In addition, the following description is merely an illustration in nature, and does not intend to limit this disclosure, its application, or its use. Furthermore, the drawings are schematic, and ratios of dimensions and the like do not necessarily match actual ones.

As shown in FIG. 1 , a battery unit 1 according to an embodiment of the present disclosure includes a base member 30 and a battery device 2 fixed to the base member 30 . In the present embodiment, the battery unit 1 includes two battery devices 2 , and each battery device 2 includes a battery 10 and a casing 20 for accommodating the battery 10 , and is integrated in a state of being in contact with each other.

As an example, each storage battery 10 includes a plurality of unit cells.

As shown in FIG. 1 , each case 20 includes a substantially rectangular parallelepiped main body 21 that accommodates the battery 10 . A base member 30 is attached to one end of the main body 21 in the longitudinal direction of the main body 21 . In addition, a control unit 40 is installed at the other end of the main body 21 in the longitudinal direction of the main body. The control unit 40 controls the storage battery 10 of each storage battery device 2 .

As shown in FIG. 2 , the base member 30 includes a bottom member 31 and side members 32 .

As shown in FIG. 2 , the bottom member 31 includes a bottom surface 33 that can be brought into contact with an installation surface where an installation position of the battery unit 1 is arranged. As an example, as shown in FIG. 3 , the bottom member 31 has a substantially rectangular shape when viewed along a first direction (eg, Z direction) intersecting the bottom surface 33 . Also, the bottom member 31 includes a first fixing hole 34 provided at an edge of the bottom member 31 . In this embodiment, the bottom member 31 includes a plurality of first fixing holes 34 arranged at intervals along the longitudinal direction (for example, X direction) and the short side direction (for example, Y direction) of the bottom member 31 .

Each first fixing hole 34 penetrates through the bottom member 31 along the first direction Z, and the base member 30 can be fixed at the installation position by a first fixing member (not shown) inserted from the first direction Z. Specifically, for example, as shown in FIG. 4 , each first fixing hole 34 is configured so as to allow insertion of an anchor bolt 110 (an example of a first fixing member) selected from an example of an installation position. The upper surface 101 (an example of an installation surface) of the concrete foundation 100 protrudes. In a state where the anchor bolts 110 are inserted into the first fixing holes 34 , the nuts 120 are fastened to the inserted anchor bolts 110 , whereby the bottom member 31 is fixed to the concrete foundation 100 .

As shown in FIG. 3 , the bottom member 31 includes a drain hole 35 provided substantially in the center in the longitudinal direction X. As shown in FIG. The drain hole 35 has a substantially rectangular shape and penetrates the bottom member 31 along the first direction Z. As shown in FIG. Both sides 351 , 352 in the short direction Y of the drain hole 35 are inclined toward the drain hole 35 , and water flowing into the base member 30 is discharged to the outside through the drain hole 35 .

As shown in FIG. 2 , the side member 32 extends along the first direction Z from the peripheral edge of the bottom member 31 . The side member 32 includes a second fixing hole 37 capable of fixing the battery device 2 to the base member 30 . In the present embodiment, the side member 32 includes a plurality of second fixing holes 37 arranged at intervals along the third direction Y intersecting the first direction Z and the second direction X. Each second fixing hole 37 is arranged to form one screw hole together with the fifth fixing hole 22 (see FIG. 7 ) provided in the main body 21 of the case 20 when the battery device 2 is fixed to the base member 30 . The fifth fixing hole 22 shown in FIG. 7 has a bottomed groove shape extending toward the inside of the base member 30 along the second direction X. As shown in FIG.

As an example, the side member 32 includes: a first side member 321 (see FIG. 5 ) extending from the peripheral edge of the bottom member along the first direction Z; and a second side member 322 provided separately from the first side member 321. , connect the first side member 321 to the battery device 2 .

As an example, as shown in FIG. 5 , the first side member 321 has a substantially rectangular plate shape and includes a pair of third fixing holes respectively provided at both ends of the third direction Y intersecting the first direction Z and the second direction X. 38, and a positioning recess 41 disposed between a pair of third fixing holes 38 in the third direction Y. In this embodiment, each third fixing hole 38 has a bottomed groove shape extending toward the inside of the base member 30 along the second direction X. Also, the first side member 321 includes two positioning recesses 41 arranged symmetrically with respect to the center line CL1 in the third direction Y of the first side member 321 .

As an example, as shown in FIG. 6 , the second side member 322 is a substantially rectangular plate shape with a dimension in the first direction Z larger than that of the first side member 321 , and includes a second fixing hole 37 and a positioning recess 41 . The protrusion 42 is positioned. The second fixing hole 37 is arranged on one side of the center line CL2 in the first direction Z of the second side member 322 . In this embodiment, the second side member 322 includes four second fixing holes 37 arranged at intervals along the third direction Y, and each second fixing hole 37 penetrates the second side member 322 in the second direction X. The positioning protrusion 42 is disposed on the other side of the center line CL2 in the first direction Z of the second side member 322 . In this embodiment, the second side member 322 includes two positioning protrusions 42 arranged at intervals along the third direction Y. As shown in FIG. The respective positioning protrusions 42 are arranged so as to be respectively accommodated in the positioning recesses 41 in a state where the second side member 322 is attached to the first side member 321 .

Moreover, the second side member 322 includes a pair of fourth fixing holes 39 respectively disposed on both sides of the two positioning protrusions 42 in the third direction Y. Each fourth fixing hole 39 penetrates through the second side member 322 in the second direction X to form a screw hole together with the third fixing hole 38 in the state where the second side member 322 is attached to the first side member 321. configuration.

As shown in FIG. 7 , the first side member 321 and the second side member 322 are fixed by inserting bolts and other fixing members 130 into the third fixing hole 38 and the fourth fixing hole 39 . The second side member 322 is fixed to the main body 21 of the battery device 2 by inserting the fixing member 130 into the second fixing hole 37 and fixing it in the fifth fixing hole 22 of the main body 21 .

Moreover, as shown in FIG. 3 , the base member 30 includes storage portions 36 provided on both sides of the drain hole 35 in the longitudinal direction X, respectively. The storage unit 36 is provided inside the base member 30 and can store liquid (for example, lithium) leaked from the battery 10 of the battery device 2 in a state where the battery device 2 is fixed to the base member 30 .

The following effects can be exerted by the base member 30 .

The bottom member 31 includes a first fixing hole 34 through which the base member 30 can be fixed at the installation position by a first fixing member (for example, an anchor bolt 110 ) inserted from the first direction Z, and the side member 32 includes a first fixing hole 34 that can be inserted from the first direction Z. The second fixing member (such as a fixing member 130 such as a bolt) inserted in the second direction X of the bottom surface 33 fixes the battery device 2 to the second fixing hole 37 of the base member 30 . With such a structure, for example, when the base member 30 is applied to the battery unit 1, in order to fix the battery unit 1 at the installation position, there is no need to provide an opening from the battery unit 2 when viewed along the first direction Z. The part protruding member can suppress the area required for installation of the battery unit 1 . In addition, since the outer shape of the battery unit 1 is less likely to have large irregularities, damage to the appearance of the battery unit 1 can be suppressed. That is, it is possible to realize the base member 30 which, when applied to the battery unit 1 , does not impair the appearance of the battery unit 1 and suppresses the area required for installation of the battery unit 1 .

In addition, after the base member 30 is fixed at the installation position, the battery device 2 can be fixed to the base member 30. Therefore, compared with the battery device of Patent Document 1 in which the legs are fixed at the installation position by anchor bolts, the battery device 2 can be fixed to the installation position. The unit 1 is easily set at the set position.

The side member 32 includes a first side member 321 extending from the periphery of the bottom member 31 along the first direction Z, and a second side member 321 provided separately from the first side member 321 and connecting the first side member 321 to the battery device 2 . The second side member 322 is provided with a second fixing hole 37 on the second side member 322 . With such a structure, the processing precision required for the side member 32 can be reduced, and the base member 30 that can be easily manufactured can be realized.

The first side member 321 includes a pair of third fixing holes 38 and a positioning recess 41, the pair of third fixing holes 38 are respectively arranged at both ends of the third direction Y intersecting the first direction Z and the second direction X, The second side member 322 can be fixed to the first side member 321 by a third fixing member inserted from the second direction X (for example, a fixing member 130 such as a bolt), and the positioning recess 41 is provided on the third direction Y. Between a pair of third fixing holes 38 . The second side member 322 includes a positioning protrusion 42 that can be received in the positioning recess 41 . With such a structure, the processing accuracy required for the side member 32 can be further reduced, and the base member 30 can be more easily manufactured.

Furthermore, a storage part 36 is provided inside the base member 30 to store liquid leaked from the battery device 2 in a state in which the battery device 2 is fixed to the base member 30 . With such a structure, the liquid leaked from the battery device 2 can be prevented from leaking to the outside of the battery unit 1 .

The bottom member 31 includes a drain hole 35 penetrating through the bottom member 31 along the first direction Z. As shown in FIG. With such a structure, even if the battery unit 1 is installed outdoors, it is possible to prevent rainwater and the like from accumulating inside the battery unit 1 .

The following effects can be exhibited by the storage battery unit 1 .

By the base member 30 , it is possible to realize the battery unit 1 whose appearance is not impaired and the area required for installation can be suppressed.

The battery unit 1 and the case 20 can also be configured as follows.

The bottom member 31 is not limited to having a substantially rectangular shape when viewed along the first direction Z, and may be other polygonal shapes, or may be substantially circular.

The side member 32 is not limited to including the first side member 321 and the second side member 322 which is a different member from the first side member 321 . For example, side member 32 may also comprise one member.

The positioning recess 41 of the first side member 321 and the positioning protrusion 42 of the second side member 322 can be omitted.

The drain hole 35 and the storage portion 36 are not limited to the above-described embodiment, and may be arranged at any position inside the base member 30 .

Either or both of the drain hole 35 and the storage portion 36 may be omitted.

The present disclosure is not limited to the battery unit 1, but can be applied to bases that include Component 30 and the battery cells of the battery device 2 . The storage battery devices 2 are not limited to two, but may be one, or three or more.

As above, various embodiments in the present disclosure have been described in detail with reference to the drawings, and finally, various embodiments in the present disclosure will be described. In addition, in the following description, as an example, a reference sign is attached|subjected and described.

The base member 30 of the first aspect of the present disclosure is a base member 30 for the battery unit 1 that can be fixed to the battery device 2 of the battery unit 1 that can be installed at the installation position. a bottom surface 33 in contact with the installation surface of the installation position; and a side member 32 extending from the periphery of the bottom member 31 along a first direction intersecting with the bottom surface 33, and the bottom member 31 includes: a first fixing hole 34. The base member 30 can be fixed at the setting position by the first fixing member inserted from the first direction, and the side member 32 includes: a second fixing hole 37, which can be The second fixing member inserted in the second direction of the bottom surface fixes the battery device 2 to the base member 30 .

In the base member 30 of the second aspect of the present disclosure, the side member 32 includes: a first side member 321 extending from the peripheral edge of the bottom member 31 along the first direction; and The second side member 322 is provided separately from the first side member 321, and connects the first side member 321 to the battery device 2, and the second side member 322 is provided with the second fixing Hole 37.

In the base member 30 of the third aspect of the present disclosure, the first side member 321 includes: a pair of third fixing holes 38, respectively provided in the third direction intersecting the first direction and the second direction. At both ends, the second side member 322 can be fixed to the first side member 321 by a third fixing member inserted from the second direction; and a positioning recess 41 is provided on all sides in the third direction Between the pair of third fixing holes 38 , the second side member 322 includes a positioning protrusion 42 that can be accommodated in the positioning recess 41 .

The base member 30 of the fourth aspect of the present disclosure further includes: a storage portion 36 provided inside the base member 30 , and can store the battery device 2 from the base member 30 in the state where the battery device 2 is fixed Liquid leaked from the battery unit 2.

In the base member 30 according to the fifth aspect of the present disclosure, the bottom member 31 includes a drainage hole 35 penetrating through the bottom member 31 along the first direction.

The battery unit 1 of the sixth aspect of the present disclosure includes: the base member 30 of the above-mentioned embodiment, and the battery device 2 fixed to the base member 30 , It is installed by fixing the base member 30 at the installation position.

In addition, by appropriately combining any of the above-described various embodiments or modified examples, respective effects can be exhibited. In addition, the embodiments, the embodiments, or the embodiments and the examples may be combined, and features in different embodiments or embodiments may be combined with each other.

[industrial availability]

The base member of the present disclosure is applicable to, for example, a storage battery unit for indoor use.

The storage battery unit of the present disclosure can be applied, for example, to a power storage system that uses sunlight to generate electricity.

30: base member

31: Bottom member

32: side member

33: bottom surface

34: The first fixing hole

35: drain hole

36: storage department

37: Second fixing hole

322: Second side member

Claims (5)

A base member, which is a base member capable of fixing the battery unit of a battery device capable of being installed at an installation position, the base member including: a bottom member having an and a side member extending from a peripheral edge of the bottom member along a first direction intersecting the bottom surface, the bottom member comprising: a first fixing hole capable of The first fixing member inserted in the first direction fixes the base member at the setting position, the side member includes: a second fixing hole, and the second fixing hole can be used from the first fixing hole along the bottom surface a second fixing member inserted in two directions to fix the battery device to the base member; a first side member extending from the peripheral edge of the bottom member along the first direction; and a second side member, Separated from the first side member, the first side member is connected to the battery device, and the second fixing hole is provided on the second side member. The base member according to claim 1, wherein the first side member includes: a pair of third fixing holes, respectively arranged in the first direction and the second direction To both ends of the crossing third direction, the second side member can be fixed to the first side member by a third fixing member inserted from the second direction; and a positioning recess is provided on the first side member Between the pair of third fixing holes in three directions, the second side member includes: a positioning protrusion capable of being accommodated in the positioning recess. The base member according to any one of claim 1 to claim 2, further comprising a storage portion provided inside the base member, capable of storing the battery device in a state where the battery device is fixed to the base member Liquid leaking from the battery unit. The base member according to any one of claim 1 to claim 2, wherein the bottom member includes: a drainage hole penetrating through the bottom member along the first direction. A battery unit, comprising: the base member according to any one of claims 1 to 4; and the battery device fixed to the base member, and by fixing the base member to the set by location.

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