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Thermal battery with shut-off valve

A thermal battery, closing valve technology, applied in the secondary battery, the float of the control valve, the operation/release device of the valve, etc., can solve the problem that the heat loss is not prevented, etc.

Active Publication Date: 2017-12-08
VALEO SYST THERMIQUES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some of these schemes insulate efficiently, heat loss via thermosiphoning and / or conduction via fluid passing through the thermal battery is not prevented

Method used

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  • Thermal battery with shut-off valve
  • Thermal battery with shut-off valve
  • Thermal battery with shut-off valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Identical elements in different figures are marked with the same reference numerals.

[0032] Such as Figure 1a and 1b As shown, the thermal battery 1 generally has a storage container 3 and an inlet pipe 7a and an outlet pipe 7b for the fluid. These fluid inlet and outlet pipes 7a, 7b are connected to a circulation circuit for said fluid.

[0033] The storage container 3 may, for example, allow a fluid to be stored, or may contain a material designed to store thermal energy, such as a phase change material, in order to heat or cool the fluid as it passes through the thermal battery.

[0034] In order to thermally insulate the storage container 3 from the environment, the storage container can be surrounded by a thermally insulating layer 5 .

[0035] The thermal battery 1 also includes at least two shut-off valves 9 . Shut-off valves 9 are arranged respectively on the inlet pipe 7a and the outlet pipe 7b in order to insulate the fluid contained in the storage conta...

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PUM

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Abstract

The present invention relates to a thermal battery (1) including a storage vessel (3) as well as an inlet pipe (7a) and an outlet pipe (7b) for a fluid, connected to a circulation circuit, said thermal battery (1) also including at least two shut-off valves (9) placed on the fluid inlet pipe (7a) and the fluid outlet pipe (7b), respectively, in order to isolate the fluid contained in the storage vessel (3) when the circulation circuit of said fluid is shut off, said shut-off valves (9) being automatic and including: an enclosure (91) containing fluid and including an inlet (93a) and an outlet (93b) for said fluid; and a float (11) movable between an upper position in which the float floats and obstructs at least the outlet (93b) when the circulation circuit is shut off, and a lower position in which the float is submerged and allows the fluid to circulate between the inlet (93a) and the outlet (93b) when the circulation circuit is operational.

Description

technical field [0001] The invention relates to the field of thermal batteries, and more particularly to a thermal battery arranged in a thermal management circuit of a motor vehicle. Background technique [0002] Thermal batteries are commonly used to heat the passenger compartment, especially in electric and hybrid vehicles, or to preheat heat transfer fluids in thermal management circuits. The thermal battery can also be used to preheat the engine oil or the oil of an automatic transmission of a vehicle with an internal combustion engine. [0003] These thermal batteries typically carry thermal energy for future use when the motor vehicle is being driven. The challenge for these thermal batteries is therefore to keep the stored thermal energy long enough so that the battery is hot enough for subsequent use. [0004] A known solution for preventing the dissipation of thermal energy is to install thermal insulation around the entire thermal battery. Different types of in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/02F28D20/00F28F27/00F16K15/00F16K31/18F16K31/20F16K33/00
CPCF16K15/00F16K31/18F16K31/20F16K33/00F28D20/00F28D20/028F28F27/00F28D2020/0073F16K31/22Y02E60/14Y02E60/10F01P2011/205H01M10/613H01M6/36
Inventor J.蒂索特K.阿祖兹
Owner VALEO SYST THERMIQUES