Power storage device

Active Publication Date: 2019-05-09
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010]Heat is exchanged between the temperature adjustment unit and the storage battery etc. due to heat conduction through the above described liquid. As a result, the temperature of the storage battery etc. may be kept uniform at an appropriate temperature, as compared to a case where the storage battery etc. is surrounded by air. Since there is no air around the storage battery etc., condensation does not occur on the surface of the storage battery etc. In addition, since the liquid storage container is surrounded by the heat insulating material, temperature fluctuations in the liquid storage container due to the influence of outside air temperature may be further suppressed. As a result, the operation load of the temperature adjustment unit is reduced, so that the temperature adjustment unit may be reduced in size.
[0011]According to the present disclosure, a power storage device capable of operating over a long period of time without being affected by outside air temperature or humidity is provided.

Problems solved by technology

As a result of detailed consideration by this inventor, depending on the arrangement of the storage battery and the inverter in such a power storage device, there is a possibility that the storage battery and the inverter are not uniformly and sufficiently cooled, thus resulting in uneven temperatures in some portions.
Moreover, when humidity of the air is high, dew condensation may occur inside the casing, and there is a possibility that the operation of the inverter may be affected.

Method used

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Example

[0022]Hereinafter, the present embodiments will be described with reference to the attached drawings. In order to facilitate the ease of understanding, the same reference numerals are attached to the same constituent elements in each drawing where possible, and redundant explanations are omitted.

[0023]A power storage device 10 according to the present embodiment is a vehicle-mount storage battery which is mounted on an electric vehicle. However, the power storage device 10 is not limited to this use. For example, the power storage device 10 may be used as a stationary type power storage device installed in a building as a part of the HEMS, or may be used as a power storage device installed in a base station for mobile phones.

[0024]The structure of power storage device 10 will be described. FIG. 1 shows the external appearance of the power storage device 10, and FIG. 2 shows its internal structure. The power storage device 10 has a configuration in which a storage battery 30 and the lik

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Abstract

A power storage device includes a storage battery that stores electric power, a battery management unit that monitors and protects the storage battery, an inverter configured to convert DC power outputted from the storage battery into AC power and outputting the AC power, and convert externally supplied AC power into DC power and supplying the DC power to the storage battery, a liquid storage container that houses therein the storage battery, the battery management unit, and the inverter in a state where surroundings of the storage battery, the battery management unit, and the inverter are filled with a liquid, a temperature adjustment unit that performs heat transfer between the liquid and outside air to adjust a temperature of the liquid to a particular target temperature, and a heat insulating material arranged to surround the liquid storage container.

Description

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Claims

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Application Information

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Owner DENSO CORP
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