JP7718093B2 - Housing and Battery Unit - Google Patents

Description

The present invention relates to a housing and a storage battery unit.

Patent Document 1 discloses a storage battery unit equipped with a housing that houses multiple storage battery modules, each of which has multiple single cells.

Japanese Patent Application Laid-Open No. 2019-109986

There is room for improvement in reducing the size of the storage battery unit.

The present disclosure aims to provide a housing that can be made compact and a storage battery unit equipped with this housing.

The housing of one aspect of the present disclosure includes:
a main body having a first surface, a second surface opposite to the first surface, and a third surface extending in a first direction intersecting the first surface and the second surface and connecting the first surface and the second surface, the main body being capable of accommodating a storage battery therein;
a terminal block provided inside the main body and having a connection portion to which wiring for electrically connecting the storage battery and an external device can be connected;
The body comprises:
a first housing portion provided inside the main body and housing the terminal block;
a second housing portion provided inside the main body and capable of arranging the wiring;
a partition wall provided inside the main body, extending in a direction intersecting the first surface and the third surface to separate the first storage section and the second storage section;
an opening provided in the partition wall and connected to the first storage section and the second storage section;
a sealing portion that seals the opening;
a first inlet provided on the first surface, connected to the second housing portion and the outside of the main body, and capable of drawing the wiring into the second housing portion;
a second inlet provided on the third surface, connected to the second housing portion and the outside of the main body, and capable of drawing the wiring into the second housing portion;
the first inlet is disposed closer to the third surface than a first imaginary line that passes through a center of the sealing portion in an extending direction of the partition wall and extends in the first direction,
the second inlet is disposed closer to the first surface than a second imaginary line that passes through the center of the sealing portion, intersects the first direction, and extends in a second direction that intersects the third surface;
The terminal block is disposed on the second imaginary straight line, and the connection portion is disposed closer to the second surface than the second imaginary straight line.

A storage battery unit according to one aspect of the present disclosure includes:
The housing of the above aspect;
and a storage battery housed inside the housing.

This housing allows for a more compact housing.

The housing of the storage battery unit allows for a compact storage battery unit.

FIG. 1 is a perspective view showing a storage battery unit according to an embodiment of the present disclosure. 2 is a plan view of the battery unit of FIG. 1 with a portion of the second housing portion removed;

An example of the present disclosure will be described below with reference to the accompanying drawings. In the following description, terms indicating specific directions or positions (e.g., terms including "up," "down," "right," and "left") will be used as necessary. However, the use of these terms is intended to facilitate understanding of the present disclosure with reference to the drawings, and the meanings of these terms do not limit the technical scope of the present disclosure. Furthermore, the following description is merely exemplary in nature and is not intended to limit the present disclosure, its applications, or its uses. Furthermore, the drawings are schematic, and the proportions of the dimensions, etc., do not necessarily correspond to reality.

As shown in FIG. 1, a storage battery unit 1 according to one embodiment of the present disclosure includes a housing 2 and a storage battery 3 housed inside the housing 2. The housing 2 has, by way of example, a substantially rectangular parallelepiped shape.

As shown in Figures 1 and 2, the housing 2 has a main body 10 capable of accommodating the storage battery 3 therein, and a terminal block 20 provided inside the main body 10. As shown in Figure 2, the main body 10 has a first surface 101, a second surface 102 opposing the first surface 101, and a third surface 103 extending in a direction intersecting the first surface 101 and the second surface 102 (e.g., the first direction Y) and connecting the first surface 101 and the second surface 102.

In this embodiment, the main body 10 is composed of a first housing portion 11, a second housing portion 12, and a base 13.

The first housing portion 11 is configured to be able to accommodate the storage battery 3 therein. The second housing portion 12 is attached to one end of the first housing portion 11 in the height direction (e.g., Z direction; hereinafter referred to as the height direction Z), and the base 13 is attached to the other end of the first housing portion 11 in the height direction Z.

As shown in FIG. 2, the second housing portion 12 has a first storage portion 121, a second storage portion 122, a partition wall 123, and a sealing portion 124 inside.

The first accommodating portion 121 accommodates the terminal block 20. In this embodiment, the first accommodating portion 121 has, as an example, a generally trapezoidal shape when viewed along the height direction Z. The first accommodating portion 121 has an accommodating surface 128 provided at the end farthest from the sealing portion 124 in a direction (e.g., the second direction X) that intersects the first direction Y and the third surface 103, and the terminal block 20 is disposed adjacent to the accommodating surface 128. The accommodating surface 128 extends along the third surface 103. In addition to the terminal block 20, two connectors 60 (e.g., maintenance interface connectors) are disposed in the first accommodating portion 121.

The second storage compartment 122 is configured to accommodate wiring 50 that electrically connects the storage battery 3 and an external device (not shown). The wiring 50 is connected to the connection portion 21 of the terminal block 20 (described below) via the sealing portion 124.

The partition wall 123 extends in a direction intersecting the first surface 101 and the third surface 103, separating the first storage section 121 and the second storage section 122. The partition wall 123 has an opening 125 connected to the first storage section 121 and the second storage section 122. In this embodiment, the partition wall 123 is arranged so as to form an angle θ of 45 degrees with respect to the first surface 101.

The sealing portion 124 is placed in the opening 125 and seals the opening 125. The sealing portion 124 prevents dust, water, etc. from entering the first storage portion 121 through the opening 125, and also prevents the first storage portion 121 from catching fire.

In this embodiment, the sealing portion 124 is formed of a cable gland and is disposed at a position that satisfies the following conditions (1) to (3).
(1) The first straight-line distance D1 from the center CP to the first surface 101 in the direction in which the partition wall 123 of the sealing portion 124 extends (for example, the direction in which the virtual line L3 in Figure 2 extends) is smaller than the second straight-line distance D2 from the center CP to the third surface 103.
(2) The center CP of the sealing portion 124 is disposed closer to the third surface 103 in the second direction X than the centers of the storage surface 128 and the third surface 103. In other words, a third linear distance D3 from the center CP of the sealing portion 124 to the storage surface 128 is shorter than the first linear distance D1.
(3) The center CP of the sealing portion 124 is located approximately in the center of the first surface 101 and the second surface 102 in the first direction Y.

A first inlet 126 is provided on the first surface 101 of the second housing portion 12, and a second inlet 127 is provided on the third surface 103 of the second housing portion 12. As an example, each of the first inlet 126 and the second inlet 127 has a substantially circular shape, is connected to the second storage portion 122 and the outside of the main body 10, and is configured to allow the wiring 50 to be drawn into the second storage portion 122.

The first inlet 126 is positioned closer to the third surface 103 than a first imaginary line L1, which passes through the center CP in the extension direction of the partition wall 123 of the sealing portion 124 (for example, the extension direction of the imaginary line L3 in Figure 2) and extends in the first direction Y. The second inlet 127 is positioned closer to the first surface 101 than a second imaginary line L2, which passes through the center CP of the sealing portion 124 and extends in the second direction X.

The terminal block 20 has a connection portion 21 to which wiring 50 can be connected, electrically connecting the storage battery 3 and an external device (not shown). The terminal block 20 is disposed on the second imaginary straight line L2. The connection portion 21 is disposed closer to the second surface 102 in the first direction Y than the second imaginary straight line L2.

The housing 2 and storage battery unit 1 can achieve the following effects:

The housing 2 comprises a main body 10 capable of accommodating a storage battery 3 therein, and a terminal block 20 provided inside the main body 10 and having a connection portion 21 to which wiring 50 can be connected, electrically connecting the storage battery 3 to an external device. The main body 10 has a first storage portion 121 that accommodates the terminal block 20, a second storage portion 122 in which the wiring 50 can be arranged, a partition wall 123 that separates the first storage portion 121 and the second storage portion 122, an opening 125 provided in the partition wall 123, a sealing portion 124 that seals the opening 125, a first inlet 126 provided on the first surface 101 and capable of drawing the wiring 50 into the second storage portion 122, and a second inlet 127 provided on the third surface 103 and capable of drawing the wiring 50 into the second storage portion 122. The first inlet 126 passes through the center CP of the sealing portion 124 and is positioned closer to the third surface 103 than the first imaginary line L1. The second inlet 127 passes through the center CP of the sealing portion 124 and is positioned closer to the first surface 101 than the second imaginary line L2. The terminal block 20 is positioned on the second imaginary line L2, and the connection portion 21 is positioned closer to the second surface 102 than the second imaginary line L2. This configuration ensures that the first and second housing portions 121 and 122 are compact while still providing sufficient installation space in the first housing portion 121 to connect the wiring 50 to the connection portion 21 of the terminal block 20. As a result, a housing that can be made more compact can be realized.

The first linear distance D1 from the center CP of the sealing portion 124 to the first surface is smaller than the second linear distance D2 from the center CP of the sealing portion 124 to the third surface 103. This configuration ensures that the first accommodating portion 121 and the second accommodating portion 122 are more compact while still providing sufficient construction space in the first accommodating portion 121 to connect the wiring 50 to the connection portion 21 of the terminal block 20.

The partition wall 123 is arranged at a 45-degree angle with respect to the first surface 101, and the sealing portion 124 is configured as a cable gland. This configuration ensures that the first accommodating portion 121 and the second accommodating portion 122 can be made more compact while still providing sufficient installation space in the first accommodating portion 121 to connect the wiring 50 to the connection portion 21 of the terminal block 20.

The first accommodating portion 121 is provided at the end farthest from the sealing portion 124 in the second direction, extends along the third surface 103, and has an accommodating surface 128 adjacent to which the terminal block 20 is disposed. The center CP of the sealing portion 124 is disposed closer to the third surface 103 in the second direction than the centers of the accommodating surface 128 and the third surface 103. This configuration ensures that the first accommodating portion 121 and the second accommodating portion 122 are more compact, while still providing construction space in the first accommodating portion 121 for connecting the wiring 50 to the connection portion 21 of the terminal block 20.

The center CP of the sealing portion 124 is located approximately in the center of the first surface 101 and the second surface 102 in the first direction. This configuration ensures that the first accommodating portion 121 and the second accommodating portion 122 can be made more compact while still ensuring sufficient construction space in the first accommodating portion 121 to connect the wiring 50 to the connection portion 21 of the terminal block 20.

The storage battery unit 1 can be made compact thanks to the housing 2.

The housing 2 and storage battery unit 1 can also be configured as follows:

The sealing portion 124 does not necessarily have to be positioned so as to satisfy all of the conditions (1) to (3) above. The sealing portion 124 may be positioned so as to satisfy one or more of the conditions (1) to (3) above, or may be positioned so as to satisfy none of the conditions (1) to (3) above.

The partition wall 123 is not limited to being arranged at an angle θ of 45 degrees relative to the first surface 101.

The sealing portion 124 is not limited to being configured as a cable gland, and any configuration that can seal the opening 125 can be used.

Various embodiments of the present disclosure have been described in detail above with reference to the drawings. Finally, various aspects of the present disclosure will be described. In the following description, reference numerals will also be used as examples.

The housing 2 of the first aspect of the present disclosure includes:
a main body (10) having a first surface (101), a second surface (102) opposite to the first surface (101), and a third surface (103) extending in a first direction intersecting the first surface (101) and the second surface (102) and connecting the first surface (101) and the second surface (102), and capable of accommodating a storage battery (3) therein;
a terminal block (20) provided inside the main body (10) and having a connection portion (21) to which wiring for electrically connecting the storage battery (3) and an external device can be connected;
The main body 10
a first housing portion 121 provided inside the main body 10 and housing the terminal block 20;
a second housing portion 122 provided inside the main body 10 and capable of accommodating the wiring 50;
a partition wall 123 provided inside the main body 10, extending in a direction intersecting the first surface 101 and the third surface 103 to separate the first storage portion 121 and the second storage portion 122;
an opening 125 provided in the partition wall 123 and connected to the first storage portion 121 and the second storage portion 122;
a sealing portion 124 that seals the opening 125;
a first inlet 126 provided on the first surface 101 and connected to the second housing portion 122 and the outside of the main body 10, and capable of drawing the wiring 50 into the second housing portion 122;
a second inlet 127 that is provided on the third surface 103 and is connected to the second housing portion 122 and the outside of the main body 10, and that can draw the wiring 50 into the second housing portion 122;
the first inlet 126 is disposed closer to the third surface 103 than a first imaginary straight line L1 that passes through a center CP of the sealing portion 124 in an extension direction of the partition wall 123 and extends in the first direction,
the second inlet port (127) is disposed closer to the first surface (101) than a second imaginary straight line (L2) that passes through the center (CP) of the sealing portion (124), intersects the first direction, and extends in a second direction that intersects the third surface (103);
The terminal block 20 is disposed on the second imaginary straight line L2, and the connection portion 21 is disposed closer to the second surface 102 than the second imaginary straight line L2.

The housing 2 of the second aspect of the present disclosure includes:
A first linear distance D1 from the center CP of the sealing portion 124 to the first surface 101 is smaller than a second linear distance D2 from the center CP to the third surface 103.

The housing 2 of the third aspect of the present disclosure includes:
The partition wall 123 is provided so as to form an angle θ of 45 degrees with respect to the first surface 101,
The sealing portion 124 is configured as a cable gland.

The housing 2 according to the fourth aspect of the present disclosure includes:
the first accommodating portion 121 is provided at an end farther from the sealing portion 124 in the second direction, extends along the third surface 103, and has an accommodating surface 128 adjacent to the terminal block 20;
The center CP of the sealing portion 124 is disposed closer to the third surface 103 in the second direction than the centers of the accommodating surface 128 and the third surface 103 .

The housing 2 of the fifth aspect of the present disclosure includes:
The center CP of the sealing portion 124 is disposed at approximately the center of the first surface 101 and the second surface 102 in the first direction.

The storage battery unit 1 according to a sixth aspect of the present disclosure includes:
The housing 2 of the above aspect;
The storage battery 3 is accommodated inside the housing 2.

By appropriately combining any of the various embodiments or modifications described above, it is possible to achieve the effects of each. Furthermore, it is possible to combine embodiments with each other, or to combine examples with each other, and it is also possible to combine features from different embodiments or examples.

While the present disclosure has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various variations and modifications will be apparent to those skilled in the art. Such variations and modifications are to be understood as included within the scope of the present disclosure as defined by the appended claims, unless they depart therefrom.

The housing of the present disclosure can be applied to, for example, a storage battery unit.

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

1 Storage battery unit 2 Housing 3 Storage battery 10 Main body 101 First surface 102 Second surface 103 Third surface 11 First housing portion 12 Second housing portion 121 First storage portion 122 Second storage portion 123 Partition wall 124 Sealing portion 125 Opening 126 First inlet 127 Second inlet 128 Storage surface 13 Base 20 Terminal block 21 Connection portion 50 Wiring

Claims (5)

a main body having a first surface, a second surface opposite to the first surface, and a third surface extending in a first direction intersecting the first surface and the second surface and connecting the first surface and the second surface, the main body being capable of accommodating a storage battery therein;
a terminal block provided inside the main body and having a connection portion to which wiring for electrically connecting the storage battery and an external device can be connected;
The body comprises:
a first housing portion provided inside the main body and housing the terminal block;
a second housing portion provided inside the main body and capable of arranging the wiring;
a partition wall provided inside the main body, extending in a direction intersecting the first surface and the third surface to separate the first storage section and the second storage section;
an opening provided in the partition wall and connected to the first storage section and the second storage section;
a sealing portion that seals the opening;
a first inlet provided on the first surface, connected to the second housing portion and the outside of the main body, and capable of drawing the wiring into the second housing portion;
a second inlet provided on the third surface, connected to the second housing portion and the outside of the main body, and capable of drawing the wiring into the second housing portion;
the first inlet is disposed closer to the third surface than a first imaginary line that passes through a center of the sealing portion in an extending direction of the partition wall and extends in the first direction,
the second inlet is disposed closer to the first surface than a second imaginary line that passes through the center of the sealing portion, intersects the first direction, and extends in a second direction that intersects the third surface;
The housing, wherein the terminal block is disposed on the second imaginary straight line, and the connection portion is disposed closer to the second surface than the second imaginary straight line. The housing of claim 1, wherein a first linear distance from the center of the sealing portion to the first surface is smaller than a second linear distance from the center to the third surface. the first accommodating portion is provided at an end farther from the sealing portion in the second direction, extends along the third surface, and has an accommodating surface adjacent to the terminal block;
The housing according to claim 1 or 2 , wherein the center of the sealing portion is disposed closer to the third surface in the second direction than centers of the accommodating surface and the third surface. The housing of claim 1 , wherein the center of the sealing portion is disposed at the center of the first surface and the second surface in the first direction. A housing according to any one of claims 1 to 4 ;
The storage battery is accommodated inside the housing.