Heat exchanger, cooling device assembly, and method for manufacturing a heat exchanger

Abstract

The invention relates to a heat exchanger, a cooling device assembly, and a method for manufacturing a heat exchanger. The heat exchanger comprises a corrugated heat transfer sheet (2) having a first surface (21) and a second surface (22) on opposite sides of the corrugated heat transfer sheet (2), a first flow channel (61) for a first fluid flow in a first flow direction parallel to a longitudinal direction, and a second flow channel (62) for a second fluid flow in a second flow direction parallel to the longitudinal direction, the second flow direction being opposite to the first flow direction. The heat exchanger comprises a channel separation system providing the first flow channel (61) and the second flow channel (62) on opposite sides of the corrugated heat transfer sheet (2) such that the first fluid flow is adapted to be in contact with the first surface (21) and the second fluid flow is adapted to be in contact with the second surface (22).

Description

TECHNICAL FIELD

[0001] The present invention relates to a heat exchanger, a cooling device assembly comprising the heat exchanger and a method for manufacturing the heat exchanger. BACKGROUND

[0002] Heat exchangers comprising corrugated heat transfer sheets are known in the art.

[0003] One of the drawbacks associated with known heat exchangers comprising corrugated heat transfer sheets is that they are complex to manufacture.

[0004] Examples of known heat exchangers are described in the publications US2007 / 261837, US2008 / 072425, US2005 / 199380 and CN1742189. SUMMARY

[0005] It is an object of the present invention to provide a heat exchanger, a cooling device assembly comprising the heat exchanger and a method for manufacturing the heat exchanger in order to alleviate the above mentioned drawbacks. The object of the present invention is achieved by the heat exchanger, the cooling device assembly comprising the heat exchanger and the method for manufacturing the heat exchanger described hereinafter.

[0006] In a first aspect of the present invention, a heat exchanger is provided. The heat exchanger comprises a corrugated heat transfer sheet having a first surface and a second surface on opposite sides of the corrugated heat transfer sheet, the corrugated heat transfer sheet comprising a plurality of ridges and grooves alternating in a width direction and having peaks and valleys spaced apart in a depth direction, wherein the width direction, the depth direction and a longitudinal direction are mutually perpendicular directions; a first flow passage for a first fluid flow in a first flow direction parallel to the longitudinal direction; a second flow passage for a second fluid flow in a second flow direction parallel to the longitudinal direction, the second flow direction being opposite to the first flow direction; and a passage separation system providing the first flow passage and the second flow passage on opposite sides of the corrugated heat transfer sheet such that the first fluid flow is adapted to be in contact with the first surface and the second fluid flow is adapted to be in contact with the second surface, characterized in that the passage separation system comprises first and second passage separation elements spaced apart in the longitudinal direction, the first and second passage separation elements having a first blocking portion adapted to block a top portion of the ridges and a second blocking portion adapted to block a bottom portion of the grooves, wherein a dimension of the first and second blocking portions in the longitudinal direction is less than or equal to 10% of a dimension of the corrugated heat transfer sheet in the longitudinal direction.

[0007] In a second aspect of the invention, a cooling device assembly is provided. The cooling device assembly includes: a body portion; a housing defining a device space within the housing; and a heat exchanger according to a first aspect of the invention, wherein the heat exchanger is connected to the body portion and housed within the housing, and wherein the housing partially defines a first flow channel and / or a second flow channel.

[0008] In a third aspect of the invention, a method for manufacturing a heat exchanger according to a first aspect of the invention is provided. The method includes: providing an elongated sheet; folding the elongated sheet into the form of corrugated heat transfer fins; providing a channel separation system; and combining the corrugated heat transfer fins and the channel separation system.

[0009] The present invention is based on the concept of providing a first flow channel and a second flow channel on opposite sides of a corrugated heat transfer sheet by means of a channel separation system, wherein the first fluid flow is adapted to contact a first surface of the corrugated heat transfer sheet, and the second fluid flow is adapted to contact a second surface of the corrugated heat transfer sheet.

[0010] The heat exchanger of the present invention has the advantage of simple structure and low cost. The cooling device assembly of the present invention has the same advantages as the heat exchanger of the present invention. The method of the present invention has the advantage that the manufacturing of the heat exchanger is simplified by forming corrugated heat transfer fins from sheets. Attached Figure Description

[0011] In the following description, the invention will be given in more detail with reference to the accompanying drawings, in which:

[0012] Figure 1 A heat exchanger according to an embodiment of the present invention is shown;

[0013] Figure 2 It is shown from the direction parallel to the longitudinal direction of the heat exchanger. Figure 1 Heat exchangers;

[0014] Figure 3 It shows Figure 1 Exploded view of a heat exchanger;

[0015] Figure 4 It shows Figure 1 A cut section of the heat exchanger is shown to reveal its internal structure; and

[0016] Figure 5 It shows including Figure 1 Cooling equipment components for heat exchangers. Detailed Implementation

[0017] Figure 1A heat exchanger according to an embodiment of the application is shown, comprising a corrugated heat transfer sheet 2, a channel separation system, a sealing device and a longitudinal support device. Figure 2 The heat exchanger is shown from a direction parallel to the longitudinal direction of the heat exchanger. Figure 1 The heat exchanger is shown from a direction parallel to the longitudinal direction of the heat exchanger. Figure 3 An exploded view of the heat exchanger is shown. Figure 1 An exploded view of the heat exchanger is shown. Figure 4 A cutaway portion of the heat exchanger is shown for illustrating the internal structure of the heat exchanger. Figure 1 A cutaway portion of the heat exchanger is shown for illustrating the internal structure of the heat exchanger.

[0018] The corrugated heat transfer sheet 2 has a first surface 21 and a second surface 22 on opposite sides thereof. With reference to Figure 3 and Figure 4 , the corrugated heat transfer sheet 2 comprises a plurality of ridges 4 and grooves 5 alternating in a width direction and having peak portions 41 and valley portions 51 spaced apart in a depth direction. The ridges 4 and grooves 5 extend along a longitudinal direction. The width direction, the depth direction and the longitudinal direction are mutually perpendicular directions.

[0019] Herein, the peak portions 41 are peak portions of the ridges 4 and the valley portions 51 are bottom portions of the grooves 5, such that the peak portions 41 and the valley portions 51 are extreme portions of the corrugated heat transfer sheet 2 in the depth direction. In Figure 2 , the longitudinal direction is perpendicular to the image plane, the depth direction is vertical and the width direction is horizontal.

[0020] The thickness of the corrugated heat transfer sheet 2 is 0.25 mm. In an alternative embodiment, the thickness of the corrugated heat transfer sheet is less than or equal to 1 mm.

[0021] The corrugated heat transfer sheet 2 is made of steel. In an alternative embodiment, the corrugated heat transfer sheet is made of another metal, such as aluminium. Due to the thinness of the corrugated heat transfer sheet, the temperature difference between the first surface and the second surface is small, even if the corrugated heat transfer sheet is made of a material having only moderate thermal conductivity. Therefore, in another alternative embodiment, the corrugated heat transfer sheet is made of a plastic, such as polypropylene or polycarbonate. In yet another alternative embodiment, the corrugated heat transfer sheet is made of graphene.

[0022] The channel separation system provides a first flow channel 61 and a second flow channel 62 on opposite sides of the corrugated heat transfer sheet 2. The first flow channel 61 is adapted for a first fluid flow along a first flow direction parallel to the longitudinal direction. The first fluid flow is adapted to be in contact with the first surface 21. The second flow channel 62 is adapted for a second fluid flow along a second flow direction parallel to the longitudinal direction, the second flow direction being opposite to the first flow direction. The second fluid flow is adapted to be in contact with the second surface 22. The heat exchanger is adapted to transfer heat between the first fluid flow and the second fluid flow.

[0023] InFigure 2 In particular, the direction of the first fluid flow is towards the observer, and the direction of the second fluid flow is away from the observer. The direction of the fluid flows has significance due to the flow deflector discussed later.

[0024] If accidental leakage is ignored, the first fluid flow is not at all suitable for contact with the second surface 22. Similarly, if accidental leakage is ignored, the second fluid flow is not at all suitable for contact with the first surface 21.

[0025] The heat exchanger comprises a top wall 11 adjacent to the peak portions 41 of the corrugated heat transfer sheet 2, and a bottom wall 12 adjacent to the valley portions 51 of the corrugated heat transfer sheet 2. The top wall 11 and the bottom wall 12 are planar walls spaced apart from each other in the depth direction. The top wall 11 and the bottom wall 12 are parallel to each other. The normal lines of the top wall 11 and the bottom wall 12 are parallel to the depth direction.

[0026] In the depth direction, the first flow passage 61 is bounded by the first surface 21 and the top wall 11, and the second flow passage 62 is bounded by the second surface 22 and the bottom wall 12. In the depth direction, the first flow passage 61 and the second flow passage 62 are separated from each other by the corrugated heat transfer sheet 2. Figure 1 Figure 3 Figure 4 Figure 5 In the depth direction, the first flow passage 61 is bounded by the first surface 21 and the top wall 11, and the second flow passage 62 is bounded by the second surface 22 and the bottom wall 12. In the depth direction, the first flow passage 61 and the second flow passage 62 are separated from each other by the corrugated heat transfer sheet 2. Figure 3 Figure 4 The top wall aperture 117 and the bottom wall aperture 127 are additional apertures added to the drawing in order to better illustrate the corrugated heat transfer sheet 2. The top wall aperture 117 and the bottom wall aperture 127 are not present in the actual heat exchanger.

[0027] The first fluid flow and the second fluid flow are air flows. In alternative embodiments, the first fluid flow and the second fluid flow are different types of gas flows or liquid flows.

[0028] The passage separation system comprises a first passage separation element 81 and a second passage separation element 82 spaced apart in the longitudinal direction. The first passage separation element 81 is located at a first longitudinal end of the corrugated heat transfer sheet 2, and the second passage separation element 82 is located at a second longitudinal end of the corrugated heat transfer sheet 2.

[0029] The first passage separation element 81 and the second passage separation element 82 have a first blocking portion 851 adapted to block the top portion of the ridge portion 4, and a second blocking portion 852 adapted to block the bottom portion of the groove portion 5. The first blocking portion 851 and the second blocking portion 852 protrude from a body portion 85 of the passage separation element. The first blocking portion 851 protrudes in the direction of the ridge portion 4, and the second blocking portion 852 protrudes in the direction of the groove portion 5. In Figure 2 ​​​​In particular, the first blocking portion 851 protrudes upwards from the body portion 85 and the second blocking portion 852 protrudes downwards from the body portion 85. The dimensions of the first and second blocking portions 851, 852 in the longitudinal direction are less than 10% of the dimensions of the corrugated heat exchanger sheet 2 in the longitudinal direction.

[0030] On the first side of the body portion 85, the first blocking portion 851 prevents the fluid flow from contacting the second surface 22 of the corrugated heat exchanger sheet 2. On the second side of the body portion 85, the second blocking portion 852 prevents the fluid flow from contacting the first surface 21 of the corrugated heat exchanger sheet 2. In particular, the first blocking portion 851 prevents the second fluid flow from contacting the first surface 21 of the corrugated heat exchanger sheet 2. In particular, the second blocking portion 852 prevents the first fluid flow from contacting the second surface 22 of the corrugated heat exchanger sheet 2. Figure 2 In particular, the first side of the body portion 85 is above the body portion 85 and the second side of the body portion 85 is below the body portion 85.

[0031] There is a separation plane such that the first flow channel 61 is located on one side of the separation plane and the second flow channel 62 is located on the other side of the separation plane. The distance between the separation plane and the peak portions 41 is equal to the distance between the separation plane and the valley portions 51. The longitudinal direction and the width direction are parallel to the separation plane.

[0032] Since the dimensions of the first and second blocking portions 851, 852 in the longitudinal direction are small compared to the longitudinal dimensions of the corrugated heat exchanger sheet 2, the first blocking portion 851 allows the second fluid flow to flow over a large part of the length of the top portion of the ridge 4 and the second blocking portion 852 allows the first fluid flow to flow over a large part of the length of the bottom portion of the groove 5. Thus, the first fluid flow is adapted to contact approximately 90% of the area of the first surface 21 and the second fluid flow is adapted to contact approximately 90% of the area of the second surface 22. In alternative embodiments, the first fluid flow is adapted to contact at least 75% of the area of the first surface and the second fluid flow is adapted to contact at least 75% of the area of the second surface.

[0033] The first and second channel separation elements 81, 82 support the corrugated heat exchanger sheet 2 for maintaining the corrugated heat exchanger sheet 2 in its correct corrugated shape. This support function of the first and second channel separation elements enables the manufacture of thin sheet material corrugated heat exchanger sheets.

[0034] The sealing means provides a seal between the corrugated heat exchanger sheet 2 and the channel separation system, thereby improving the isolation between the first flow channel 61 and the second flow channel 62. Thus, the sealing means provides a seal between the corrugated heat exchanger sheet 2 and the first channel separation element 81 and between the corrugated heat exchanger sheet 2 and the second channel separation element 82, among others.

[0035] The sealing means prevents the transfer of dust and water between the first flow channel 61 and the second flow channel 62. In embodiments, the level of ingress protection is IP55.

[0036] The sealing arrangement comprises a first end support element 71, a second end support element 72, a first side support element 91 and a second side support element 92. The first end support element 71 cooperates with the first channel dividing element 81 for sealing the corrugated heat transfer sheet 2 against the first channel dividing element 81. The first longitudinal end of the corrugated heat transfer sheet 2 is located between the first end support element 71 and the first channel dividing element 81 in the depth direction, and the first end support element 71 presses the corrugated heat transfer sheet 2 against the first channel dividing element 81 in the depth direction. The second longitudinal end of the corrugated heat transfer sheet 2 is located between the second end support element 72 and the second channel dividing element 82 in the depth direction, and the second end support element 72 presses the corrugated heat transfer sheet 2 against the second channel dividing element 82 in the depth direction.

[0037] The first end support element 71 and the second end support element 72 have contact surfaces whose shape corresponds to the shape of the corrugated heat transfer sheet 2, so that the contact area between the first end support element 71 and the corrugated heat transfer sheet 2 is large and the contact area between the second end support element 72 and the corrugated heat transfer sheet 2 is large. Thus, the contact surfaces of the first end support element 71 and the second end support element 72 have a corrugated shape.

[0038] The first end support element 71 and the second end support element 72 each comprise a flow deflector adapted to deflect a corresponding fluid flow towards the corrugated heat transfer sheet 2 in order to improve the heat transfer between the fluid flow and the corrugated heat transfer sheet 2. In Figure 3 In the embodiment shown in the figures, the flow deflector of the second end support element 72 is denoted with reference numeral 728.

[0039] The dimensions of the first end support element 71 and the second end support element 72 in the longitudinal direction are less than 10% of the dimensions of the corrugated heat transfer sheet 2 in the longitudinal direction. In alternative embodiments, the dimensions of the first end support element and the second end support element in the longitudinal direction are less than or equal to 20% of the dimensions of the corrugated heat transfer sheet in the longitudinal direction.

[0040] In alternative embodiments, the heat exchanger does not comprise any end support elements. For example, if the connection between the corrugated heat transfer sheet and the first channel dividing element and the second channel dividing element is sufficiently strong and tight by itself, then any end support elements can not be needed.

[0041] The first side support element 91 and the second side support element 92 extend in the longitudinal direction and are spaced apart in the width direction. The first side support element 91 is located on a first lateral side of the corrugated heat exchanger sheet 2 and supports the corrugated heat exchanger sheet 2 in a first lateral direction parallel to the width direction. The second side support element 92 is located on a second lateral side of the corrugated heat exchanger sheet 2 and supports the corrugated heat exchanger sheet 2 in a second lateral direction opposite to the first lateral direction. The first side support element 91 participates in sealing a first side edge of the corrugated heat exchanger sheet 2, and the second side support element 92 participates in sealing a second side edge of the corrugated heat exchanger sheet 2.

[0042] The first channel dividing element 81, the second channel dividing element 82, the first end support element 71, the second end support element 72, the first side support element 91 and the second side support element 92 are made of plastic by injection molding.

[0043] The first side support element 91 comprises a first support groove 913 extending in the longitudinal direction. The first side edge of the corrugated heat exchanger sheet 2 is received in the first support groove 913. The second side support element 92 comprises a second support groove 923 extending in the longitudinal direction. The second side edge of the corrugated heat exchanger sheet 2 is received in the second support groove 923.

[0044] In embodiments, a sealing compound is present in the first support groove and the second support groove for improving the sealing between the corrugated heat exchanger sheet and the side support elements. Also, a sealing compound can be used between the corrugated heat exchanger sheet and the channel dividing elements.

[0045] The longitudinal support arrangement is adapted to prevent relative movement in the longitudinal direction between the first channel dividing element 81 and the corrugated heat exchanger sheet 2 and between the second channel dividing element 82 and the corrugated heat exchanger sheet 2. The longitudinal support arrangement comprises a plurality of screws 33 connecting the corrugated heat exchanger sheet 2 to the first end support element 71 and the first channel dividing element 81 and connecting the corrugated heat exchanger sheet 2 to the second end support element 72 and the second channel dividing element 82.

[0046] A first set of screws 33 passes through the first end support element 71 and the corrugated heat exchanger sheet 2 to the first channel dividing element 81. A second set of screws 33 passes through the second end support element 72 and the corrugated heat exchanger sheet 2 to the second channel dividing element 82. The screws 33 are in Figure 1 and Figure 4 are shown.

[0047] It should be noted that the longitudinal support means also participate in providing the seal between the corrugated heat transfer sheet 2 and the channel dividing system. The plurality of screws connecting the corrugated heat transfer sheet 2 to the channel dividing elements 81 and 82 press the corrugated heat transfer sheet 2 against the channel dividing elements. In embodiments where an adhesive is present between the corrugated heat transfer sheet and the channel dividing elements, the adhesive serves as both a longitudinal support means and a sealing means. Thus, in many embodiments, it is not possible to clearly demarcate the structure in the sealing means and the longitudinal support means.

[0048] The first channel dividing element 81, the second channel dividing element 82, the first side support element 91 and the second side support element 92 are connected together such that they form a heat exchanger frame which supports the corrugated heat transfer sheet 2 from all four sides of the corrugated heat transfer sheet 2 and which is adapted to connect the heat exchanger to the body portion of the cooling device assembly.

[0049] In alternative embodiments, the heat exchanger comprises an intermediate support element which is adapted to support the corrugated heat transfer sheet between the first channel dividing element and the second channel dividing element. The intermediate support element is located in the longitudinal direction between the first channel dividing element and the second channel dividing element. The intermediate support element is in contact with the corrugated heat transfer sheet in order to support the corrugated heat transfer sheet. The intermediate support element is also adapted to increase the turbulence in the first fluid flow and / or the second fluid flow.

[0050] Figure 5 A cooling device assembly is shown which comprises a body portion 102, a housing 104 which defines a device space inside it, and Figure 1 a heat exchanger. The heat exchanger is mechanically connected to the body portion 102 and is accommodated inside the housing 104.

[0051] In alternative embodiments, the housing and / or the body portion of the cooling device assembly form part of the heat exchanger. For example, in an embodiment, the heat exchanger does not comprise a top wall or a bottom wall, but the first flow channel and the second flow channel are limited in the depth direction by parts of the housing of the cooling device assembly. Furthermore, in another embodiment, at least one of the following components is an integral part of the body portion of the cooling device assembly: the first channel dividing element, the second channel dividing element, the first side support element and the second side support element. Said at least one integral component can be formed by the same injection moulding process as the body portion of the cooling device assembly.

[0052] In Figure 5 embodiments, several parts of the cooling device assembly are omitted. The omitted parts include the electrical device which needs to be cooled and the user interface. In embodiments, the electrical device which needs to be cooled is a converter device, such as a frequency converter.

[0053] A method for manufacturingFigure 1 The method of manufacturing a heat exchanger of the type 1 comprises providing an elongated sheet member, folding the elongated sheet member into the form of a corrugated heat transfer sheet 2, providing a channel separating system, and combining the corrugated heat transfer sheet 2 and the channel separating system. The combining comprises pushing the corrugated heat transfer sheet 2 in the depth direction relative to the first channel separating element 81 and the second channel separating element 82 until the corrugated heat transfer sheet 2 is in contact with the first channel separating element 81 and the second channel separating element 82. In embodiments, the sheet is supplied from a roll to the manufacturing process.

[0054] In embodiments, the folding process comprises forming a plurality of creases in the elongated sheet member. Subsequently, the elongated sheet member is folded along the plurality of creases into the form of a corrugated heat transfer sheet. In alternative embodiments, the manufacturing method does not comprise forming creases in the elongated sheet member.

[0055] The channel separating system is made of different materials and has a different manufacturing process than the corrugated heat transfer sheet. In embodiments, the first channel separating element, the second channel separating element, the first end support element, the second end support element, the first side support element, and the second side support element are manufactured at one location and transported to a second location where the corrugated heat transfer sheet is formed by folding the elongated sheet member and the heat exchanger is manufactured.

[0056] Figure 1 The heat exchanger of the type 1 has only one corrugated heat transfer sheet 2. In alternative embodiments, the heat exchanger comprises a plurality of corrugated heat transfer sheets, wherein the corrugated heat transfer sheets are arranged in a stacked manner such that the planes defined by the individual sheets are parallel to each other and spaced apart in the depth direction. The first flow channel and the second flow channel each comprise a plurality of sub-channels. The individual corrugated heat transfer sheets are separated from each other by a spacer plate. In embodiments, the first end support element and the second end support element and / or the first channel separating element and the second channel separating element are provided with fastening means for fastening the spacer plate.

[0057] It will be obvious to a person skilled in the art that the inventive concept can be implemented in various ways. The application and its embodiments are not limited to the above examples, but can vary within the scope of the claims.

Claims

1. A heat exchanger, comprising: A corrugated heat transfer plate (2) having a first surface (21) and a second surface (22) on the opposite side of the corrugated heat transfer plate (2), the corrugated heat transfer plate (2) including a plurality of ridges (4) and grooves (5), the plurality of ridges (4) and grooves (5) alternating in the width direction and having peaks (41) and valleys (51) spaced apart in the depth direction, wherein the width direction, the depth direction and the longitudinal direction are mutually perpendicular; A first flow channel (61) is used for a first fluid flow in a first flow direction parallel to the longitudinal direction; The second flow channel (62) is used for a second fluid flow in a second flow direction parallel to the longitudinal direction, the second flow direction being opposite to the first flow direction. A channel separation system provides a first flow channel (61) and a second flow channel (62) on opposite sides of the corrugated heat transfer plate (2), such that the first fluid flow is adapted to contact the first surface (21) and the second fluid flow is adapted to contact the second surface (22). The system is characterized in that the channel separation system includes a first channel separation element (81) and a second channel separation element (82) spaced apart in the longitudinal direction, the first channel separation element (81) and the second channel separation element (82) having a first blocking portion (851) adapted to block the top portion of the ridge and a second blocking portion (852) adapted to block the bottom portion of the groove, wherein the dimensions of the first blocking portion (851) and the second blocking portion (852) in the longitudinal direction are less than or equal to 10% of the dimensions of the corrugated heat transfer sheet (2) in the longitudinal direction.

2. The heat exchanger according to claim 1, wherein, The channel separation system includes a longitudinal support device to prevent relative movement between the first channel separation element (81) and the corrugated heat transfer plate (2) in the longitudinal direction.

3. The heat exchanger according to claim 2, wherein, The longitudinal support device includes an adhesive and / or at least one screw for connecting the corrugated heat transfer sheet (2) to the first channel separating element (81).

4. The heat exchanger according to claim 1, 2 or 3, wherein, The heat exchanger includes a sealing device that provides a seal between the channel separation system and the corrugated heat transfer fins (2), thereby improving the isolation between the first flow channel (61) and the second flow channel (62).

5. The heat exchanger according to claim 4, wherein, The sealing device includes a first end support element (71) that cooperates with a first channel partition element (81) to seal the corrugated heat transfer sheet (2) against the first channel partition element (81), wherein a portion of the corrugated heat transfer sheet (2) is located between the first end support element (71) and the first channel partition element (81) in the depth direction, and the first end support element (71) presses the portion of the corrugated heat transfer sheet (2) against the first channel partition element (81) in the depth direction.

6. The heat exchanger according to claim 4, wherein, The sealing device includes a second end support element (72) that cooperates with a second channel partition element (82) to seal the corrugated heat transfer sheet (2) against the second channel partition element (82), wherein a portion of the corrugated heat transfer sheet (2) is located between the second end support element (72) and the second channel partition element (82) in the depth direction, and the second end support element (72) presses the portion of the corrugated heat transfer sheet (2) against the second channel partition element (82) in the depth direction.

7. The heat exchanger according to claim 4, wherein, The sealing device includes a first side support element (91) and a second side support element (92) extending along the longitudinal direction and spaced apart in the width direction, wherein the first side support element (91) participates in sealing the first side edge of the corrugated heat transfer sheet (2), and the second side support element (92) participates in sealing the second side edge of the corrugated heat transfer sheet (2).

8. The heat exchanger according to claim 7, wherein, The first side support element (91) includes a first support groove (913) extending along the longitudinal direction, in which the first side edge of the corrugated heat transfer sheet (2) is received, and the second side support element (92) includes a second support groove (923) extending along the longitudinal direction, in which the second side edge of the corrugated heat transfer sheet (2) is received.

9. The heat exchanger according to claim 1, 2 or 3, wherein, The thickness of the corrugated heat transfer sheet (2) is less than or equal to 1 mm.

10. The heat exchanger according to claim 1, 2 or 3, wherein, The channel separation system is made of a different material than the corrugated heat transfer sheet.

11. A cooling device assembly, comprising: Main body (102); A housing (104) defines a device space within the housing (104); The heat exchanger according to claim 1, 2 or 3, wherein the heat exchanger is connected to the body portion (102) and housed inside the housing (104), and The outer casing (104) partially defines the first flow channel and / or the second flow channel.

12. A method for manufacturing a heat exchanger according to claim 1, the method comprising: Provide long sheet parts; The elongated sheet is folded into the form of the corrugated heat transfer sheet (2); Provide a channel separation system; as well as Combine the corrugated heat transfer plate (2) with the channel separation system.

13. The method according to claim 12, wherein, The method includes forming multiple creases in the elongated sheet and folding the elongated sheet along the multiple creases into the form of the corrugated heat transfer sheet (2).

Images