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Thermal storage device, air conditioning device, and thermal storage method

A heat storage device and air-conditioning device technology, applied in heat storage equipment, indirect heat exchangers, transportation and packaging, etc.

Inactive Publication Date: 2015-09-23
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the temperature of the medium gradually changes depending on the operating conditions of the heat generating body, it is difficult to easily determine whether the latent heat storage material can be overcooled or not based on the temperature of the medium.

Method used

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  • Thermal storage device, air conditioning device, and thermal storage method
  • Thermal storage device, air conditioning device, and thermal storage method
  • Thermal storage device, air conditioning device, and thermal storage method

Examples

Experimental program
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no. 1 approach ）

[0030] figure 1 It is a block diagram which shows the heat storage device which concerns on 1st Embodiment. In this embodiment, for example, the heat storage device can be installed in an electric vehicle (Electronic Vehicle; EV) (hereinafter referred to as “EV”) that has a battery, a motor, an inverter, and an electronic control unit (Electronic Control Unit; ECU) that controls them. vehicles) for use in interior air conditioning units. For example, a heat storage device is installed near a motor or an inverter of an electric vehicle equipped with an air conditioner. By storing the heat (waste heat) released from the motor or inverter in the heat storage device in advance, the heat stored in the heat storage device can be used when warm-up operation of the air conditioner is required.

[0031] figure 1The thermal storage device 1000 includes a first circuit 101 . A medium for heat exchange circulates in this first circuit 101 . The medium is liquid or gas capable of tran...

no. 2 approach ）

[0082] Figure 8 It is a block diagram which shows the heat storage device 1500 which concerns on 2nd Embodiment. in addition, Figure 12 yes means Figure 8 Block diagram of the control device. In this embodiment, with figure 1 The heat storage device 1000 differs in that the heat storage device 1500 includes a second measuring unit 140 .

[0083] The second measuring unit 140 is a temperature sensor provided between the heat storage tank 20 and the cooling unit 30 . The second measurement unit 140 measures the temperature of the medium passing through the first circuit 101 after passing through the heat storage tank 20 and before passing through the cooling unit 30 (hereinafter referred to as a second temperature). That is, the second temperature of the medium is measured after heat is supplied to the latent heat storage material 25 by heat exchange and before the temperature is lowered by being cooled by the cooling unit 30 .

[0084] The measurement unit 42 measures ...

no. 3 approach ）

[0090] Figure 10 It is a block diagram showing the air conditioner 2000 which concerns on 3rd Embodiment. in addition, Figure 11 yes means Figure 10 A block diagram of the control device 200. Figure 10 The air conditioner 2000 has figure 1 The thermal storage device 1000. by pairing with figure 1 The thermal storage device 1000 and figure 2 The same components of the control device 200 are assigned the same reference numerals, and detailed description thereof will be omitted.

[0091] Figure 10 The air conditioner 2000 of the present invention includes a nucleating device 160 , a second bypass circuit 112 , and a second control valve 113 . In addition, the air conditioning unit 170, the heat storage tank 20, and the air conditioning unit 170 are connected in a ring shape, and the second circuit 111 for passing a medium is provided. Figure 11 The control device 200 has the second control unit 45 as a logic module.

[0092] The nucleating device 160 is a device fo...

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PUM

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Abstract

A disclosure describes a heat storage apparatus to store heat generated by a heat generator via a medium includes: a first circuit closed to circulate the medium therethrough in a direction; a heat exchanger to exchange the heat; a heat storage tank including a phase change material to exchange heat with the medium; a first measurement unit to measure a temperature of the medium; a cooling unit to cool the medium when the temperature of the medium is higher than a predetermined target temperature and to set the temperature of the medium to be approximately equal to the target temperature; a count unit to count an elapsed time from when the phase change material exchanges heat with the medium and starts a phase change; and a determination unit to determine whether the phase change material is allowed to be supercooled or not based on the elapsed time.

Description

[0001] This application claims priority based on Japanese Priority Patent Application No. 2012-187601 for which it applied on August 28, 2012, The content is taken in as a whole by reference in this application. technical field [0002] This embodiment relates to a heat storage device, an air conditioner, and a heat storage method using a latent heat storage material. Background technique [0003] A technique is known in which waste heat from a heat generating element is stored in a latent heat storage material via a medium for warming up an internal combustion engine or a transformer (heat generating element). The latent heat storage material stores heat by changing from a solid phase to a liquid phase when heat is applied. Even when the temperature of the latent heat storage material in the liquid phase is lowered, it is in a supercooled state in which the liquid phase remains as it is. The latent heat storage material in a supercooled state undergoes nucleation (nucleati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D20/02
CPCF28D20/028F28D20/02B60H1/00885F28F27/00B60H1/143Y02E60/145B60H1/00492Y02E60/14
Inventor 石井惠奈吉田充伸松冈敬八木亮介
Owner KK TOSHIBA