Power storage device

Abstract

To provide a power storage device that allows easy maintenance work. [Solution] The power storage device B according to the present disclosure includes a battery module 21, a control unit 22 that controls the battery module 21, and a rack 23 that houses the battery module 21 and the control unit 22. The rack 23 has a drawer mechanism 24 for drawing out the control unit 22. With this configuration, the power storage device B according to the present disclosure can easily move the control unit 22 to a position where maintenance work can be easily performed. As a result, the power storage device B according to the present disclosure can easily perform maintenance work.

Description

[Technical Field]

[0001] The present disclosure relates to an electricity storage device. [Background technology]

[0002] Patent Document 1 describes an electricity storage device that includes a battery module, a control unit that controls the battery module, and a rack that houses the battery module and the control unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-132006 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the power storage device described in Patent Document 1, when performing maintenance on the control unit, it is sometimes difficult to perform the work due to the positional relationship with other components of the power storage device. In other words, the power storage device according to the prior art has a problem in that it is not easy to perform maintenance work on the unit. Patent Document 1 does not disclose any technology that can solve such problems.

[0005] The present disclosure has been made to solve such problems, and has an object to provide a power storage device that allows for easy maintenance work. [Means for solving the problem]

[0006] The power storage device according to the present disclosure includes a battery module, a control unit that controls the battery module, and a rack that houses the battery module and the control unit. The rack has a drawer mechanism for drawing out the control unit.

[0007] With this configuration, the power storage device according to the present disclosure can easily move the control unit to a position where maintenance work can be easily performed, thereby facilitating maintenance work on the power storage device according to the present disclosure.

[0008] In the power storage device according to the present disclosure, the draw-out mechanism may be a plate-like member that supports the control unit and rotates about a rotation axis perpendicular to the draw-out direction. With this configuration, the power storage device according to the present disclosure allows the control unit to be easily moved to a position where maintenance work can be easily performed.

[0009] Furthermore, in the power storage device according to the present disclosure, in the above-described configuration, the wiring member extending from the control unit may pass near the rotation shaft. With this configuration, the power storage device according to the present disclosure can move the control unit to a position where maintenance work can be easily performed without moving the wiring members significantly.

[0010] Furthermore, in the above-described configuration of the power storage device according to the present disclosure, the wiring member extending from a position facing the rotation shaft via the center of the plate-like member may pass near the rotation shaft. With this configuration, the power storage device according to the present disclosure can move the control unit to a position where maintenance work can be easily performed without moving the wiring members significantly.

[0011] In the power storage device according to the present disclosure, the draw-out mechanism may be a plate-like member that supports the control unit and slides in the draw-out direction. With this configuration, the power storage device according to the present disclosure allows the control unit to be easily moved to a position where maintenance work can be easily performed. [Effects of the Invention]

[0012] The present disclosure makes it possible to provide a power storage device that allows for easy maintenance work. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a perspective view showing a configuration of a power storage device according to a first embodiment. [Figure 2] FIG. 2 is a perspective view showing the configuration of an internal device according to the first embodiment. [Figure 3] FIG. 2 is a perspective view showing the configuration of an internal device according to the first embodiment. [Figure 4] FIG. 10 is a perspective view showing the configuration of an internal device according to a second embodiment. [Figure 5] FIG. 10 is a perspective view showing the configuration of an internal device according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0014] First Embodiment (Configuration of the power storage device) Hereinafter, a first embodiment according to the present disclosure will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing the configuration of the power storage device according to the first embodiment.

[0015] It should be noted that the right-handed xyz Cartesian coordinate system shown in Fig. 1 and other drawings is a matter of convenience for explaining the positional relationship of the components. In this embodiment, the positive z-axis direction in Fig. 1 and other drawings is the vertically upward direction, and the xy plane is the horizontal plane, which is common among the drawings.

[0016] The power storage device B is a fixed power storage device. For example, the power storage device B is installed in a house or the like and is used to store electricity for home use, backup electricity for emergencies, electricity to be sold, and the like. The power storage device B includes a housing 1, an internal device 2, and an exterior cover (not shown). The exterior cover is a cover that surrounds the periphery of the housing 1 and serves to protect the housing 1 from flying objects and improve the design.

[0017] (Configuration of chassis 1) As shown in FIG. 1, in a power storage device B according to this embodiment, an internal device 2 is housed in the internal space of a housing 1. The housing 1 is a box-shaped structure that protects the internal device 2, and is typically made primarily of metal. The housing 1 includes a housing main body 11 and a housing lid 12.

[0018] The housing body 11 is a substantially rectangular box-shaped structure having an opening parallel to the zx plane. The opening of the housing body 11 is sealed by a housing lid 12, which is a plate-shaped structure. The housing body 11 houses the internal device 2 inside.

[0019] The housing 1 is sealed by fastening the housing body 11 and the housing lid 12 together along the outer edge of the storage opening of the housing body 11. There are no particular limitations on the method for fastening the housing body 11 and the housing lid 12 together, but they are fastened together using a removable method in order to perform maintenance on the internal device 2.

[0020] (Configuration of internal device 2) FIG. 2 is a perspective view showing the configuration of an internal device of the power storage device according to the first embodiment. The internal device 2 is a device housed inside the housing 1, and has functions such as controlling the operation of the power storage device B, inputting and outputting power, and storing power. The internal device 2 includes a battery module 21, a control unit 22, and a rack 23.

[0021] The battery module 21 is, for example, a secondary battery such as a lithium ion battery or a nickel-metal hydride battery. The battery module 21 operates under the control of the control unit 22. Specifically, the battery module 21 receives a supply of power from an external source and stores the supplied power under the control of the control unit 22. Then, the battery module 21 supplies the stored power to the outside under the control of the control unit 22. In other words, the battery module 21 exchanges power with the outside under the control of the control unit 22. The battery module 21 exchanges power with the outside via a cable not shown in FIG.

[0022] Control unit 22 controls the operation of power storage device B. For example, the control unit 22 may control the amount of power supplied to the battery module 21 from the outside and the amount of power supplied from the battery module 21 to the outside. Furthermore, for example, the control unit 22 may monitor the temperature and voltage of the battery, calculate limit values ​​for the voltage and current to the battery, and further communicate with external devices.

[0023] For example, the control unit 22 includes an arithmetic unit such as a CPU (Central Processing Unit) not shown, and a memory unit such as a RAM (Random Access Memory) or a ROM (Read Only Memory) that stores programs and data for controlling the storage device B. That is, control unit 22 has a function as a computer, and controls the operation of power storage device B based on the above program.

[0024] Therefore, each function executed by the illustrated control unit 22 can be configured in terms of hardware using the above-mentioned CPU, memory unit, other circuits, etc., and can be realized in terms of software using a program for controlling the storage device B stored in the memory unit, etc. That is, the control unit 22 can be implemented in various forms using hardware, software, or a combination of both.

[0025] The program includes a set of instructions (or software code) that, when loaded into a computer, causes the computer to perform one or more functions described in the embodiments. The program may be stored in a non-transitory computer-readable medium or a tangible storage medium. By way of example and not limitation, computer-readable media or tangible storage media include random-access memory (RAM), read-only memory (ROM), flash memory, solid-state drive (SSD) or other memory technologies, CD-ROM, digital versatile disc (DVD), Blu-ray (registered trademark) disc or other optical disk storage, magnetic cassette, magnetic tape, magnetic disk storage or other magnetic storage device. The program may also be transmitted on a transitory computer-readable medium or communication medium. By way of example and not limitation, transitory computer-readable media or communication media include electrical, optical, acoustic, or other forms of propagated signals.

[0026] The rack 23 is a shelf-like structure that houses the battery modules 21 and the control unit 22. The rack 23 has rectangular parallelepiped storage spaces that can house the battery modules 21, and each storage space houses one or more battery modules 21. The control unit 22 is installed on the top surface of the rack 23. Furthermore, the rack 23 has a drawer mechanism 24 for drawing out the control unit 22.

[0027] The drawer mechanism 24 according to this embodiment is a plate-like member that supports the control unit 22 and rotates around a rotation axis perpendicular to the drawer direction. The drawer mechanism 24 according to this embodiment includes a drawer plate 241 and a rotation axis 242.

[0028] The drawer plate 241 is a plate-like member arranged on the upper surface of the rack 23, and supports the control unit 22. The drawer plate 241 is fixed at one point on its main surface by a rotation shaft 242, and is configured to rotate around the rotation shaft 242.

[0029] Fig. 3 is a perspective view showing the configuration of the internal device 2 according to the first embodiment. More specifically, Fig. 3 is a perspective view showing the configuration of the internal device 2 when the drawer mechanism 24 according to this embodiment is drawn out in the drawing direction.

[0030] In this embodiment, the drawer plate 241 has four corners, of which the corners located in the negative directions of both the x-axis and the y-axis are fixed by the rotation shafts 242. 3, in this embodiment, the drawer plate 241 is configured to be rotatable clockwise as viewed from the positive direction of the z-axis around the rotation axis 242. In other words, the drawer plate 241 according to this embodiment is configured to be able to be drawn out in the negative direction of the y-axis.

[0031] When performing maintenance work on the control unit, first, the housing cover 12 is removed from the housing 1 shown in Fig. 1. Then, the control unit 22 housed inside the housing 1 is moved to the outside of the housing main body 11 by rotating the drawer plate 241 as shown in Fig. 3. With this configuration, in the power storage device B according to this embodiment, the control unit 22 can be moved to the outside of the housing 1, that is, to a position where it is easy to work on.

[0032] The rotary shaft 242 rotatably fixes the drawer plate 241 at one point on the main surface. For example, the rotating shaft 242 may be a rod-shaped member that is fitted into a through-hole provided in the drawer plate 241 and connected to the upper surface of the rack 23. With this configuration, the rotating shaft 242 can rotatably fix the drawer plate 241 at one point on the main surface.

[0033] In this embodiment, a wiring member (not shown) extending from the control unit 22 may pass near the rotation shaft 242. With this configuration, the amount of movement of the wiring member caused by the rotation of the drawer plate 241 can be reduced.

[0034] In the above case, the wiring member extending from a position facing the rotation shaft through the center of the drawing plate 241 as a starting point may pass near the rotation shaft 242 . In other words, in this embodiment, the wiring member extending from the vicinity of the corner of the drawer plate 241 diagonally opposite the corner of the drawer plate 241 where the rotation axis 242 is located may pass near the rotation axis 242. Such wiring members are subject to a large amount of movement caused by the rotation of the drawer plate 241. Therefore, when the above-described configuration is applied to such wiring members, the above-described effect of suppressing the amount of movement of the wiring members is particularly achieved.

[0035] Furthermore, in the above case, all of the wiring members extending from the control unit 22 may pass near the rotation axis 242. With such a configuration, not only can the amount of movement of the wiring members be reduced, but also the wiring members can be prevented from making it difficult to pull out the drawer plate 241.

[0036] As described above, the power storage device B according to this embodiment includes the battery module 21, the control unit 22, and the rack 23. The rack 23 has a drawer mechanism 24 for drawing out the control unit 22. With this configuration, in the power storage device B according to this embodiment, the control unit 22 can be easily moved to a position where maintenance work can be easily performed. As a result, the power storage device B according to this embodiment allows maintenance work to be easily performed.

[0037] <Second embodiment> Hereinafter, the second embodiment of the present disclosure will be described in detail with reference to the drawings. FIG. 4 is a perspective view showing the configuration of the power storage device according to the second embodiment.

[0038] Like the power storage device according to the first embodiment, the power storage device B according to this embodiment includes a housing 1 and an internal device 2. The power storage device B according to this embodiment differs from the first embodiment in the configuration of the drawer mechanism 24. That is, this embodiment is an embodiment for showing a modified example of the drawer mechanism 24 in the first embodiment. Therefore, in this embodiment, the configuration other than the drawer mechanism 24 is the same as in the first embodiment.

[0039] The drawer mechanism 24 according to this embodiment is a plate-like member that supports the control unit 22 and slides in the drawer direction. As shown in FIG.

[0040] The drawer plate 241 is a plate-like member arranged on the upper surface of the rack 23, and supports the control unit 22. The drawer plate 241 has two sides parallel to the y-axis fixed by a sliding mechanism 243, and is configured to slide in the positive and negative directions of the y-axis.

[0041] Fig. 5 is a perspective view showing the configuration of the internal device 2 according to the second embodiment. More specifically, Fig. 5 is a perspective view showing the configuration of the internal device 2 when the drawer mechanism 24 according to this embodiment is drawn out in the drawing direction.

[0042] For example, when performing maintenance or other work on the control unit, first, the housing cover 12 is removed from the housing 1 shown in Fig. 1. Then, as shown in Fig. 5, the drawer plate 241 is slid in the negative direction of the y-axis to move the control unit 22 housed inside the housing 1 to the outside of the housing main body 11. With this configuration, in the power storage device B according to this embodiment, the control unit 22 can be moved to the outside of the housing 1, that is, to a position where it is easy to work on.

[0043] As described above, in the power storage device B according to this embodiment, the drawer mechanism 24 is configured as a plate-like member that supports the control unit 22 and slides in the drawer direction. Even with this configuration, in the power storage device B according to this embodiment, the control unit 22 can be easily moved to a position where maintenance work can be easily performed. As a result, the power storage device B according to this embodiment allows maintenance work to be easily performed.

[0044] The present invention has been described above in accordance with the above-described embodiments, but the present invention is not limited to the configurations of the above-described embodiments, and naturally includes various modifications, alterations, and combinations that can be made by a person skilled in the art within the scope of the invention claimed in the claims of this application. [Explanation of symbols]

[0045] B Energy storage device 1 chassis 11. Housing main body 12 Housing lid 2 Internal device 21 Battery module 22 Control Unit 23 racks 24 Drawer mechanism 241 Drawer board 242 Rotational Axis 243 Sliding Mechanism

Claims

1. A battery module; a control unit for controlling the battery module; a rack that houses the battery module and the control unit; The rack has a drawer mechanism for drawing out the control unit. Energy storage device.

2. the pull-out mechanism is a plate-like member that supports the control unit and rotates around a rotation axis perpendicular to the pull-out direction; The power storage device according to claim 1 .

3. A wiring member extending from the control unit passes near the rotation shaft. The power storage device according to claim 2 .

4. the wiring member extends from a position facing the rotation shaft via a central portion of the plate-like member as a starting point and passes near the rotation shaft; The power storage device according to claim 3 .

5. the pull-out mechanism is a plate-like member that supports the control unit and slides in a pull-out direction. The power storage device according to claim 1 .

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