DE-102025146943-A1 - HEAT EXCHANGER

DE102025146943A1DE 102025146943 A1DE102025146943 A1DE 102025146943A1DE-102025146943-A1

Abstract

A heat exchange device comprises a heat exchanger with a plurality of vertically stacked heat exchange plates such that a heat exchange medium flows between adjacent plates of the plurality of heat exchange plates; a first inlet channel and a first outlet channel through which a high-pressure heat exchange medium flows, and a second inlet channel and a second outlet channel through which a low-pressure heat exchange medium flows, and with an inlet area and an outlet area that are larger than an inlet area and an outlet area of the first inlet channel and the first outlet channel.

Inventors

Bong Seok Sim
Hyeong Gi LEE
Ki Baeg Ryu

Assignees

Hyundai Wia Corporation

Dates

Publication Date: 20260513
Application Date: 20251113
Priority Date: 20241113

Claims (20)

A heat exchanger comprising: a heat exchanger with a plurality of vertically stacked heat exchange plates such that a heat exchange medium flows between adjacent plates of the plurality; a first inlet channel and a first outlet channel through which a high-pressure heat exchange medium flows; and a second inlet channel and a second outlet channel through which a low-pressure heat exchange medium flows, and having an inlet area and an outlet area that are larger than the inlet area and outlet area of the first inlet channel and the first outlet channel.
Heat exchange device according to Claim 1 , wherein the first inlet channel and the first outlet channel are arranged diagonally to be spaced apart from each other, and the second inlet channel and the second outlet channel are arranged diagonally to be spaced apart from each other, and wherein the first inlet channel and the first outlet channel are arranged such that they are opposite the first inlet channel and the first outlet channel.
Heat exchange device according to Claim 1 , wherein the multiple heat exchange plates comprise: a first heat exchange plate in fluid communication with the first inlet channel and the first outlet channel, and a second heat exchange plate in fluid communication with the second inlet channel and the second outlet channel, and wherein the first heat exchange plate and the second heat exchange plate are stacked alternately in the vertical direction of the heat exchange device.
Heat exchange device according to Claim 3 , wherein one or more ribs are provided in a heat exchange area of the first heat exchange plate through which the high-pressure heat exchange medium flows.
Heat exchange device according to Claim 4 , wherein the one or more ribs of the first heat exchange plate extend towards the opposite first heat exchange plate or the opposite second heat exchange plate and are connected to the opposite first heat exchange plate or the opposite second heat exchange plate.
Heat exchange device according to Claim 5 , wherein one or more grooves, into which the one or more ribs are inserted, are provided in a heat exchanger plate, to which the extend to one or more ribs of the first heat exchange plate and are connected to it.
Heat exchange device according to Claim 4 , wherein the one or more ribs of the first heat exchange plate are provided in a plurality and arranged in one direction from the first inlet channel to the first outlet channel.
Heat exchange device according to Claim 4 , wherein the one or more ribs of the heat exchange plate are provided in a plurality and arranged so that they intersect successively in the heat exchange area.
Heat exchange device according to Claim 8 , wherein at least a part of each first inlet channel, each first outlet channel, each second inlet channel and each second outlet channel is designed to correspond to the outer shape of the heat exchange plate.
Heat exchange device according to Claim 9 , wherein the outer corners of the heat exchange plate are rounded and the parts of the first inlet channel, the first outlet channel, the second inlet channel and the second outlet channel that correspond to the outer corners of the heat exchange plate are rounded.
Heat exchange device according to Claim 10 , wherein the first inlet channel, the first outlet channel, the second inlet channel and the second outlet channel are designed to have a curvature that is smaller than the curvature at which the outer corners of the heat exchange plate are rounded.
Heat exchange device according to Claim 3 , wherein the first inlet channel, the first outlet channel, the second inlet channel and the second outlet channel are configured to branch out and fill a remaining area which excludes a heat exchange area through which the heat exchange medium flows in the first heat exchange plate and the second heat exchange plate.
Heat exchange device according to Claim 1 , wherein a plurality of recesses are provided in a heat exchange area of the heat exchange plate, which is in fluid communication with the second inlet channel and the second outlet channel.
A heat exchanger comprising: a first heat exchanger configured such that several heat exchange plates are stacked vertically, and a first inlet channel and a first outlet channel through which a first high-pressure heat exchange medium flows, and a second inlet channel and a second outlet channel through which a first low-pressure heat exchange medium flows, the inlet and outlet areas being larger than the inlet and outlet areas of the first inlet channel and the first outlet channel, and wherein the first high-pressure and the first low-pressure heat exchange medium flow between each heat exchange plate; a second heat exchanger configured such that several heat exchange sections are stacked vertically, wherein the first low-pressure heat exchange medium and a second heat exchange medium flow between and exchange heat with each other, and the heat-exchanged first low-pressure heat exchange medium flows to the second inlet channel; and a partition plate arranged between the first heat exchanger and the second heat exchanger, designed to connect the first heat exchanger and the second heat exchanger.
Heat exchange device according to Claim 14 , wherein the second heat exchanger is provided with a first flow channel through which the first heat exchange medium flows, and a second flow channel and a third flow channel through which the second heat exchange medium flows.
Heat exchange device according to Claim 15 , wherein a fourth flow channel, which is in fluid communication with the second flow channel or the third flow channel, is provided in the partition plate on an opposite side of the second heat exchanger and the second heat exchange medium flows through the fourth flow channel.
Heat exchange device according to Claim 14 , where the first heat exchanger has a smaller overall size than the second heat exchanger.
Heat exchange device according to Claim 14 , wherein a first plate is provided on an outermost side of the heat exchange plate of the first heat exchanger, a second plate is provided on an outermost side of the heat exchange section of the second heat exchanger, and the first plate and the second plate are each attached to both sides of the partition plate.
Heat exchange device according to Claim 14 , wherein the first heat exchanger has a first port provided in the first inlet channel, which is configured for the inflow of the first heat exchange medium under high pressure, a second port provided in the first outlet channel, which is configured for the outflow of the first heat exchange medium under high pressure, and a third port provided in the second outlet channel, which is configured for the outflow of the first heat exchange medium under low temperature/low pressure.
Heat exchange device according to Claim 19 , wherein the second heat exchanger has a fourth connection provided in a first flow channel of the second heat exchanger, a fifth connection provided in a second flow channel of the second heat exchanger, a sixth connection provided in a third flow channel of the second heat exchanger, and a seventh connection provided in a fourth flow channel of the second heat exchanger, wherein the first flow channel, the second flow channel, and the third flow channel are provided such that the first low-pressure heat exchange medium and the second heat exchange medium flow through them, and wherein the fourth flow channel, which is in fluid communication with the second flow channel or the third flow channel, is provided in the partition plate.

Description

AREA The present disclosure relates to a heat exchange device which is arranged so that different heat exchange media can exchange heat. BACKGROUND A heat exchanger is a device that performs heat exchange by absorbing or releasing heat between different heat exchange media. Such heat exchangers are manufactured in various forms depending on their purpose and application, including condensers and evaporators that use refrigerants as the heat exchange medium, radiators and heating elements that use coolants as the heat exchange medium, and oil coolers that use oil from engines and transmissions as the heat exchange medium. For example, a heat exchanger operates a coolant plate through which coolant flows and a refrigerant plate through which refrigerant flows, and enables heat exchange between the refrigerant and the coolant via the coolant plate and the refrigerant plate. In such a heat exchanger, several internal heat exchangers are used to improve cooling performance. However, it is difficult to implement an internal heat exchanger by ensuring a straight section within a complex structure in electromobility applications. For this purpose, several internal heat exchangers are integrated and combined, but the measures taken to accommodate the flow are inadequate, and measures to improve the arrangement and efficiency of the heat exchangers are needed. The facts described above as prior art serve only to provide a better understanding of the background of the present disclosure and do not constitute an acknowledgment that they correspond to prior art already known to a person skilled in the art. OVERVIEW The present disclosure relates to a heat exchange device capable of integrating multiple heat exchangers, reducing the overall structure by miniaturizing the heat exchanger, and ensuring the heat exchange efficiency and flowability of a heat exchange medium. According to one embodiment of the present disclosure, a heat exchange device comprises: a heat exchanger with a plurality of heat exchange plates stacked vertically such that a heat exchange medium flows between adjacent of the plurality of heat exchange plates; a first inlet channel and a first outlet channel through which a high-pressure heat exchange medium flows; and a second inlet channel and a second outlet channel through which a low-pressure heat exchange medium flows and which have an inlet area and an outlet area that are larger than the inlet area and outlet area of the first inlet channel and the first outlet channel. According to one embodiment, the first inlet channel and the first outlet channel can be arranged diagonally to be spaced apart from each other, and the second inlet channel and the second outlet channel can also be arranged diagonally to be spaced apart from each other. The first inlet channel and the first outlet channel can be arranged such that they are opposite each other. According to one embodiment, the plurality of heat exchange plates may comprise: a first heat exchange plate in fluid communication with the first inlet channel and the first outlet channel, and a second heat exchange plate in fluid communication with the second inlet channel and the second outlet channel, wherein the first heat exchange plate and the second heat exchange plate are stacked alternately in the vertical direction of the heat exchange device. According to one embodiment, one or more ribs can be provided in a heat exchange area of the first heat exchange plate through which the high-pressure heat exchange medium flows. According to one embodiment, the one or more ribs of the first heat exchange plate can extend towards the opposite first heat exchange plate or the opposite second heat exchange plate and be connected to the opposite first heat exchange plate or the opposite second heat exchange plate. According to one embodiment, one or more grooves into which the one or more ribs are inserted can be provided in a heat exchange plate to which the one or more ribs of the first heat exchange plate extend and with which they are connected. According to one embodiment, the one or more ribs of the first heat exchange plate can be provided in a plurality and arranged in a direction from the first inlet channel to the first outlet channel. According to one embodiment, the one or more ribs of the heat exchange plate can be formed in a plurality and arranged so that they intersect successively in the heat exchange area. According to one embodiment, at least one section of each of the first inlet channels, the first outlet channels, the second inlet channels and the second outlet channels can be designed to correspond to an outer shape of the heat exchanger plate. According to one embodiment, the outer corners of the heat exchange plate can be rounded, and parts of the first inlet channel, the first outlet channel, the second inlet channel and the second outlet channel that correspond to the outer corners of the heat exchange plate can be rounded. Accord