Heat exchanger with phase-change vessel(s) comprising one or plurality of filling units

Abstract

The present invention relates to a method for production of a heat exchanger (1) comprising at least one phase-change material vessel (12), the said vessel (12) being delimited by at least one first vessel plate (120) through which there passes at least one orifice (1201) for introduction of phase-change material, and an opposite surface, the said vessel (12) comprising a filling unit (14) comprising a first lateral wall (14A) through which there passes at least one filling orifice (1421) which co-operates with the said at least one orifice (1201) for introduction of the said first vessel plate (120), and a second, opposite lateral wall (14B), which delimits a filling chamber together with the first lateral wall (14A), the said filling unit (8) comprising a part (141, 142) which projects relative to a face (1A) of the heat-exchange bundle, a filling opening (1410) passing through the said first or second lateral wall (14A, 14B) of the said projecting part of the said filling unit (8),the said method comprising: a step (194) of filling of the phase-change material vessel (12); a step (195) of closure, at the said projecting part (141, 142), of the said filling chamber; a step (197)of cutting of the first end portion (141) of the said projecting part.

Description

technical field [0001] The field of the invention is that of heat exchangers of the evaporator type, in particular for motor vehicles. [0002] More specifically, the present invention relates to evaporators using phase change materials. Background technique [0003] In motor vehicles, it is known to use air conditioning devices capable of regulating the temperature of the vehicle's passenger space. [0004] More specifically, these air conditioning units use heat exchangers, especially evaporators, such as figure 1 evaporator shown. [0005] This type of evaporator 1 comprises a heat exchange bundle formed by a stack of tubes 10 and an intervening unit 11 placed between two continuous tubes 10 and allowing the passage of The heat exchange is performed between the air flow of the unit) and the coolant (such as coolant liquid) circulating in the tube 10 . [0006] In particular for vehicles provided with a system for automatically stopping the engine during short stops of...

AI Technical Summary

Problems solved by technology

[0015] However, in practice, once the filling tube is closed, it is difficult to ensure the sealing of its circular opening

[0016] Furthermore, none of the solutions according to the prior art can guarantee a closed seal of the phase change material container after filling and closing the filling tube

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