KR102487572B1 - Heat exchanger and energy conversation device 1ssembly including the same - Google Patents

Abstract

A heat exchanger that performs heat exchange with a predetermined device is disclosed.
The heat exchanger includes a heat exchange channel structure for performing heat exchange through a flow of a heat transfer medium by forming a heat exchange region for heat exchange with the device, the heat exchange channel structure includes a plurality of heat exchange channels having a spiral shape, The heat exchange channel structure has a structure in which one of the first heat exchange channel and the second heat exchange channel included in the plurality of heat exchange channels includes at least one of a single channel structure and a branched channel structure, and independently performs heat exchange. A heat exchange region, and an interlocking heat exchange region in which the first heat exchange channel and the second heat exchange channel have either a single channel interlocking structure or a branch channel interlocking structure and engage each other to perform heat exchange.

Description

Heat exchanger and energy conversion device assembly including the same {HEAT EXCHANGER AND ENERGY CONVERSATION DEVICE 1SSEMBLY INCLUDING THE SAME}

The present invention relates to a heat exchanger and a device assembly including the same.

A thermal management device or thermal management system for controlling heat generated from a device such as a motor (electric motor) or a generator has been used. In the case of an electric vehicle (EV), the use of a high-power motor is required because the vehicle must be driven only with a motor without an internal combustion engine. Compared to hybrid vehicles, the required power of motors applied to electric vehicles (EVs) is relatively very high.

As the amount of heat generated by motors for electric vehicles (EVs) increases, a method for controlling/managing them is required. In the process of designing a motor or generator, temperature characteristics of the motor or generator may vary for each region. However, conventional heat exchangers have a problem in that they cannot provide various heat exchange characteristics for each region.

As a result, the temperature of the motor or generator may vary locally, which may cause the motor or generator to partially expand or contract, resulting in mechanical failure. In addition, there is a problem that the output capacity of the motor or generator is limited due to the efficiency limit of the conventional heat exchanger.

According to at least one embodiment, a heat exchanger capable of properly controlling the heat localization phenomenon and efficiently performing heat exchange (ie, cooling) even if there is a heat localization phenomenon in a device such as a motor (electric motor) or a generator is provided. According to at least one embodiment, a heat exchanger capable of performing heat exchange to have different temperature characteristics for each region of a heating element is provided. According to at least one embodiment, a heat exchanger capable of efficiently performing heat exchange while having a relatively simple structure and having an advantageous configuration and driving method in terms of environmental issues, ease of manufacture, and convenience of application is provided. According to at least one embodiment, a device assembly (eg, an energy conversion device assembly) including the heat exchanger described above is provided. The problem to be solved by the present invention is not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

In one aspect, a heat exchanger that performs heat exchange with a predetermined device is disclosed.

The disclosed heat exchanger includes a heat exchange channel structure that performs heat exchange through the flow of a heat transfer medium by forming a heat exchange region for heat exchange with the device, the heat exchange channel structure includes a plurality of heat exchange channels having a spiral shape, The heat exchange channel structure has a structure in which one of the first heat exchange channel and the second heat exchange channel included in the plurality of heat exchange channels includes at least one of a single channel structure and a branched channel structure, and independently performs heat exchange. A heat exchange region, and an interlocking heat exchange region in which the first heat exchange channel and the second heat exchange channel have either a single channel interlocking structure or a branch channel interlocking structure and engage each other to perform heat exchange.

When the independent channel heat exchange region includes a branched channel structure, the first heat exchange channel or the second heat exchange channel constituting the independent channel heat exchange region may be formed to branch into two or more channels within the independent channel heat exchange region. can

When the first heat exchange channel and the second exchange channel in the interdigitated heat exchange area have a branch channel interdigitated structure, the 1-1 heat exchange channel and 1-2 formed by branching of the first heat exchange channel in the interdigitated heat exchange area The heat exchange channel and the 2-1 heat exchange channel formed by branching the second heat exchange channel and the 2-2 heat exchange channel may engage with each other to perform heat exchange.

The heat exchange channel structure may include an 1S region in which the first heat exchange channel independently performs heat exchange and an IK region in which the first heat exchange channel and the second heat exchange channel engage each other to perform heat exchange.

The heat exchange channel structure may include an IK region in which the first heat exchange channel and the second heat exchange channel are engaged with each other to perform heat exchange, and 1S regions positioned at both ends of the IK region and in which the first heat exchange channel independently performs heat exchange. can

The heat exchange channel structure includes an IK region in which the first heat exchange channel and the second heat exchange channel are engaged with each other to perform heat exchange, an 1S region formed at one end of the IK region and in which the first heat exchange channel independently performs heat exchange, and the It is formed at the other end of the IK region and may include a 2S region in which the second heat exchange channel independently performs heat exchange.

A 1-1 port may be formed in the 1S region, a 2-1 port may be formed in the 2S region, and a 1-2 port and a 2-2 port may be formed at a boundary of the IK region.

The first heat exchange channel further includes a 1-1 port formed in the 1S region and a 1-3 port formed in the IK region, and the second heat exchange channel includes a 2-1 port formed in the 2S region and an IK It further includes a 2-3 port formed in the region, and the heat exchanger includes a 1-1 link channel connected to the 1-1 port and the 2-1 port; a 1-2 link channel connected to the 1-3 ports and the 2-3 ports; and a flow rate branch control unit controlling the flow rate of the heat transfer medium flowing into the heat exchange channel structure through the 1-1 link channel and the flow rate of the heat transfer medium flowing into the heat exchange channel structure through the 1-2 link channel. can

The heat exchanger includes a cover channel provided inside a cover in which the predetermined device is embedded; a first radiation channel connecting at least a portion of the 1S region and the cover channel; and a second radiation channel connecting at least a portion of the 2S region and the cover channel.

The heat exchange channel structure may include an IK region in which the first heat exchange channel and the second heat exchange channel are engaged with each other to perform heat exchange, and 1S regions positioned at both ends of the IK region and in which the first heat exchange channel independently performs heat exchange. can

In addition, in the heat exchanger, a heat transfer medium introduced through a port formed in any one of the first heat exchange channel and the second heat exchange channel is branched to both ends of the one channel, and the connection provided at both ends of the one channel pass through the link channel and the cover channel, and the heat transfer medium passing through the link channel and the cover channel flows into both ends of the other one of the first heat exchange channel and the second heat exchange channel, It may be configured to be discharged through a port formed in.

The first heat exchange channel includes ports 1-1 and 1-3 formed in the 1S regions and ports 1-2 formed in the IK region, and the second heat exchange channel is formed in the IK region. Port 2-1, port 2-2 and port 2-4 formed on the boundary of the IK region may be included.

The heat exchanger may further include a radiation channel connecting the 1S regions and a cover channel provided inside a cover in which the predetermined device is embedded.

According to at least one embodiment, it is possible to implement a heat exchanger capable of properly controlling the heat localization phenomenon and efficiently performing heat exchange (ie, cooling) even if there is a heat localization phenomenon in a device that generates heat such as a motor (electric motor) or a generator. there is.

In addition, it is possible to efficiently perform heat exchange while having a relatively simple structure, and it is possible to implement a heat exchanger having an advantageous configuration and driving method in terms of environmental problems, ease of manufacture, and convenience of application.

By applying the heat exchanger according to this embodiment, a device assembly (eg, an energy conversion device assembly) having excellent heat exchange performance can be implemented.

1 is a diagram for explaining a heat exchanger according to an exemplary embodiment.
FIG. 2 shows a case in which the ratio of the interlocking heat exchange area (ie, overlapping area) is 64% in the heat exchanger of FIG. 1 according to another embodiment.
FIG. 3 shows a case in which the ratio of the meshed heat exchange area (ie, overlapping area) is 82% in the heat exchanger of FIG. 1 according to another embodiment.
4 is a view showing a heat exchanger according to a first comparative example. Figure 4 (A) is a perspective view of the heat exchanger, (B) is a side view.
5 is a view showing a heat exchanger according to a second comparative example. Figure 5 (A) is a perspective view of the heat exchanger, (B) is a side view.
6 is a perspective view illustrating an energy conversion device to which a heat exchanger according to an exemplary embodiment may be applied.
7 is a cross-sectional view showing an energy conversion device to which a heat exchanger according to an exemplary embodiment may be applied.
8 is a view for explaining a heat exchanger according to another embodiment.
9 is a view for explaining a heat exchanger according to another embodiment.
10 is a view for explaining a heat exchanger according to another embodiment.
11 is a view for explaining a heat exchanger according to another embodiment.
12 is a view for explaining a heat exchanger according to another embodiment.
13 is a view for explaining a heat exchanger according to another embodiment.
14 is a view for explaining a heat exchanger according to another embodiment.
15 is a view for explaining a heat exchanger according to another embodiment.
16 is a view for explaining a heat exchanger according to another embodiment.
FIG. 17 is a diagram showing the heat exchange principle of the heat exchanger more simply by omitting the electric motor from the structure shown in FIG. 16 .
FIG. 18 is an exploded view showing the structure of FIG. 16 .
19 is a conceptual diagram briefly illustrating the structure of a heat exchanger according to another exemplary embodiment.
20 is a diagram for explaining a heat exchanger according to another exemplary embodiment.
FIG. 21 is a diagram for explaining the embodiment of FIG. 20 in more detail.
22 is a schematic diagram showing the structure of a heat exchanger according to another exemplary embodiment.
23 is a schematic diagram showing the structure of a heat exchanger according to another exemplary embodiment.
24 is a schematic diagram of a structure of a heat exchanger according to another exemplary embodiment.
25 is a schematic diagram of a structure of a heat exchanger according to another exemplary embodiment.
26 is a diagram for explaining a heat exchanger according to another embodiment.
27 is a diagram for explaining a heat exchanger according to another exemplary embodiment.
28 is a diagram for explaining a heat exchanger according to another exemplary embodiment.
29 is a view showing a heat exchanger according to another exemplary embodiment by way of example.
FIG. 30 is a simulation result obtained by evaluating temperature changes of a stator unit and a coil unit of the energy conversion device due to the operation of the heat exchanger when the heat exchanger according to the second comparative example described with reference to FIG. 5 is applied to the energy conversion device. .
31 is a simulation result obtained by evaluating temperature changes of a stator unit and a coil unit of an energy conversion device due to operation of the heat exchanger when the heat exchanger according to Comparative Example 1 described with reference to FIG. 4 is applied to the energy conversion device; .
32 is a simulation result of evaluating the temperature change of the stator unit and the coil part of the energy conversion device due to the operation of the heat exchanger when the heat exchanger according to the embodiment of the present invention described with reference to FIG. 3 is applied to the energy conversion device. to be.
FIG. 33 is a simulation result obtained by evaluating temperature changes of the stator unit and coil unit of the energy conversion device due to the operation of the heat exchanger when the heat exchanger according to the embodiment described with reference to FIG. 2 is applied to the energy conversion device.
34 is a simulation result of evaluating the temperature change of the stator unit and the coil unit of the energy conversion device due to the operation of the heat exchanger when the heat exchanger according to the embodiment of the present invention described with reference to FIG. 1 is applied to the energy conversion device. to be.
35 is an evaluation result showing a temperature distribution in a cross section of a stator core of the energy conversion device when the heat exchanger according to Comparative Example 2 described with reference to FIG. 5 is applied to the energy conversion device.
36 is an evaluation result showing a temperature distribution in a cross section of a stator unit of an energy conversion device when the heat exchanger according to Comparative Example 1 described with reference to FIG. 4 is applied to the energy conversion device.
37 is an evaluation result showing a temperature distribution in a cross section of a stator unit of an energy conversion device when the heat exchanger according to the embodiment of the present invention described with reference to FIG. 3 is applied to the energy conversion device.
38 is an evaluation result showing a temperature distribution in a cross section of a stator unit of an energy conversion device when the heat exchanger according to the embodiment of the present invention described with reference to FIG. 2 is applied to the energy conversion device.
39 is an evaluation result showing a temperature distribution in a cross section of a stator unit of an energy conversion device when the heat exchanger according to the embodiment of the present invention described with reference to FIG. 1 is applied to the energy conversion device.
40 is a conceptual diagram showing the operating temperature of a heat transfer medium when a single heat exchange channel is provided on an isothermal heating element and the heat transfer medium flows from one end to the other end thereof.
FIG. 41 is a conceptual diagram showing the operating temperature of a heat transfer medium when first and second heat exchange channels are disposed on an isothermal heating element so as to overlap in all regions and the heat transfer medium flows in opposite directions.
FIG. 42 is a conceptual diagram showing the operating temperature of a heat transfer medium when first and second heat exchange channels are provided on an isothermal heating element but overlapped in a partial area rather than the entire area, and the heat transfer medium flows in opposite directions.
43 is a side view illustrating an energy conversion device assembly in which a heat exchange channel structure of a heat exchanger according to a comparative example is applied to an energy conversion device.
44 is a side view showing an energy conversion device assembly in which a heat exchange channel structure of a heat exchanger is applied to an energy conversion device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention to be described below are provided to more clearly explain the present invention to those skilled in the art, and the scope of the present invention is not limited by the following examples, Embodiments may be modified in many different forms.

Terms used in this specification are used to describe specific embodiments and are not intended to limit the present invention. Terms in the singular form used herein may include plural forms unless the context clearly indicates otherwise. Also, as used herein, the terms "comprise" and/or "comprising" specify the presence of the stated shape, step, number, operation, member, element, and/or group thereof. and does not exclude the presence or addition of one or more other shapes, steps, numbers, operations, elements, elements and/or groups thereof. In addition, the term “connection” used in this specification means not only direct connection of certain members, but also a concept including indirect connection by intervening other members between the members.

In addition, when a member is said to be located “on” another member in the present specification, this includes not only a case where a member is in contact with another member, but also a case where another member exists between the two members. As used herein, the term “and/or” includes any one and all combinations of one or more of the listed items. In addition, terms of degree such as "about" and "substantially" used in the present specification are used in a range of values or degrees or meanings close thereto, taking into account inherent manufacturing and material tolerances, and are used to help the understanding of the present application. Exact or absolute figures provided for this purpose are used to prevent undue exploitation by infringers of the stated disclosure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The size or thickness of areas or parts shown in the accompanying drawings may be slightly exaggerated for clarity of the specification and convenience of description. Like reference numbers indicate like elements throughout the detailed description.

A heat exchanger according to an exemplary embodiment may perform heat exchange with a predetermined device. The heat exchange channel structure 100 may perform heat exchange using a heat transfer medium flowing therethrough. Here, the heat transfer medium may include, for example, water or oil for heat transfer. However, the type of the heat transfer medium is not limited to the above-mentioned fluid and may be changed to other fluids.

The heat exchange channel structure 100 may include a plurality of heat exchange channels. In FIG. 1 exemplarily, a case in which the heat exchange channel structure 100 may include the first heat exchange channel 110 and the second heat exchange channel 120 is shown, but the embodiment is not limited thereto. For example, the heat exchange channel structure 100 may include three or more heat exchange channels. Each of the first heat exchange channel 110 and the second heat exchange channel 120 may have a spiral structure. The first heat exchange channel 110 may spirally extend from the first end E1 to the second end E2 of the heat exchange channel structure 100 . The second heat exchange channel 120 may spirally extend from the second end E2 toward the first end E1 of the heat exchange channel structure 100 .

The heat exchange channel structure 100 may form a heat exchange region R10. A region in which the heat exchange channels 110 and 120 form a spiral shape may be defined as a heat exchange region R10. In the heat exchange region R10, the first heat exchange channel 110 and the second heat exchange channel 120 having a spiral shape may perform heat exchange with a heat generating device. Since the first heat exchange channel 110 and the second heat exchange channel 120 are separated from each other outside the heat exchange region R10 and move the heat transfer medium independently of each other within the heat exchange region R10, they can be treated as different channels. On the other hand, as will be described later, when one channel is branched into two or more flow passages within the heat exchanging region R10, the branched flow passages may be treated as a branch structure of the same channel.

The first heat exchange channel 110 and the second heat exchange channel 120 may be formed along an inner circumferential surface or an outer circumferential surface of the device 20 to be subjected to heat exchange. For example, when the device 20 is an inner wheel motor, the first heat exchange channel 110 and the second heat exchange channel 120 may be formed along the outer circumferential surface of a stator of the inner wheel motor. As another example, when the device is an outer wheel motor, the first heat exchange channel 110 and the second heat exchange channel 120 may be formed along the inner circumferential surface of the stator of the outer wheel motor. The first heat exchange channel 110 and the second heat exchange channel 120 may not directly contact the device 20 to be subjected to heat exchange. For example, another member may further exist between the first heat exchange channel 110 and the second heat exchange channel 120 and the device. However, the embodiment is not limited thereto. The first heat exchange channel 110 and the second heat exchange channel 120 may directly contact the surface of the device 20 to be subjected to heat exchange.

The first heat exchange channel 110 and the second heat exchange channel 120 may be configured to engage with each other in a partial region of the heat exchange channel structure 100 but not in the entire region. The fact that the first heat exchange channel 110 and the second heat exchange channel 120 are engaged with each other means, for example, that the first heat exchange channel 110 is extended under the interposition (insertion) of the second heat exchange channel 120, Alternatively, it may mean a state in which the second heat exchange channel 120 is extended under the interposition (insertion) of the first heat exchange channel 110 . In this embodiment, a region in which the first heat exchange channel 110 and the second heat exchange channel 120 are engaged with each other, that is, an interdigitated heat exchange region is denoted by reference numeral IK. In the interlocking heat exchange region IK, unit parts of the first heat exchange channel 110 and unit parts of the second heat exchange channel 120 are alternated along the longitudinal direction of the heat exchange channel structure 100 (ie, a direction parallel to the central axis). can be placed as However, the embodiment is not limited thereto. For example, as will be described later, when the first heat exchange channel 110 and the second heat exchange channel 120 are branched into two or more branched channels, the branched channels may be engaged with each other. In this case, unit units of each of the branch channels may be alternately arranged in the interdigitated heat exchange region IK. In the interlocking heat exchange region IK, heat exchange action may be performed by the first heat exchange channel 110 and the second heat exchange channel 120 in a state in which they are substantially evenly mixed.

The fact that the first heat exchange channel 110 and the second heat exchange channel 120 are engaged with each other can be expressed as 'overlapping' the first heat exchange channel 110 and the second heat exchange channel 120 with each other, or, The heat exchange channel 110 and the second heat exchange channel 120 may be expressed as 'intersecting' each other. Accordingly, the interdigitated heat exchange region IK may be referred to as an 'overlapping region' or an 'intersecting region'. The first heat exchange channel 110 may not engage the second heat exchange channel 120 in areas other than the interdigitated heat exchange area IK (a left area of the interdigitated heat exchange area). The second heat exchange channel 120 may not engage with the first heat exchange channel 110 in areas other than the interdigitated heat exchange area IK (the right area of the interdigitated heat exchange area). The heat exchange channel structure 100 may include an independent channel heat exchange region in which one of the first heat exchange channel 110 and the second heat exchange channel independently performs heat exchange. In the independent channel heat exchange region, the first heat exchange channel 110 or the second heat exchange channel may include at least one of a single channel structure and a branched channel structure.

According to the embodiment shown in FIG. 1, a region 1S in which heat exchange is performed only through the first heat exchange channel 110 is disposed on one side of the interlocking heat exchange region IK, and the second heat exchange region 1S is disposed on the other side of the interlocking heat exchange region IK. A region 2S in which heat exchange is performed only through the channel 120 may be disposed. In other words, in a region adjacent to the first end E1 of the heat exchange channel structure 100, there is a region in which the first heat exchange channel 110 is wound (rotated) two or more times without the interposition of the second heat exchange channel 120. In addition, in a region adjacent to the second end portion E2 of the heat exchange channel structure 100, a region in which the second heat exchange channel 120 is wound (rotated) two or more times without the interposition of the first heat exchange channel 110 may exist. can On the one side of the interdigitated heat exchange region IK, heat exchange may be mainly performed by the first heat exchange channel 110, and on the other side of the interdigitated heat exchange region IK, heat exchange may be mainly performed by the second heat exchange channel 120. It can be done.

The first heat exchange channel 110 may include a 1-1 port 112 and a 1-2 port 114 for the flow of the first heat transfer medium, and the second heat exchange channel 120 may transfer the second heat. A 2-1 port 122 and a 2-2 port 124 for media flow may be provided. The 1-1 port 112 may be disposed at the first end E1, and the 2-1 port 122 may be disposed at the second end E2. The 1-2 port 114 may be disposed between the 2-1 port 122 and the 2-2 port 124, and the 2-2 port 124 is the 1-1 port 112 And may be disposed between the 1-2 port (114). The 1-2 port 114 may be disposed closer to the central portion (central portion along the length direction) of the heat exchange channel structure 100 than the 2-1 port 122, and similarly, the 2-2 port ( 124 may be disposed closer to the central portion of the heat exchange channel structure 100 than the 1-1 port 112 . In a region between the 1-2 port 114 and the 2-2 port 124, the first heat exchange channel 110 and the second heat exchange channel 120 may be provided to engage with each other. In other words, the area between the 1-2nd port 114 and the 2-2nd port 124 may be defined as the interdigitated heat exchange area IK.

The first heat transfer medium is injected into the 1-1 port 112 of the first heat exchange channel 110 located at the first end E1 of the heat exchange channel structure 100 and passes through the first heat exchange channel 110. After that, it can be discharged to the first-second port (114). The second heat transfer medium is injected into the 2-1 port 122 of the second heat exchange channel 120 located at the second end E2 of the heat exchange channel structure 100 and passes through the second heat exchange channel 120. After that, it can be discharged to the 2-2 port (124). Accordingly, the traveling direction of the first heat transfer medium passing through the first heat exchange channel 110 and the traveling direction of the second heat transfer medium passing through the second heat exchange channel 120 may be opposite to each other. Since two heat exchange channels 110 and 120 are used, and the passage directions of the heat transfer media passing through them (ie, the first and second heat transfer media) may be opposite to each other, from this point of view, the embodiment It can be said that the heat exchange channel structure 100 according to has a so-called "Double and Counter Flow (DC Flow)" configuration/characteristic.

1 illustrates that the heat transfer medium is injected from the ports 112 and 122 at both ends of the heat exchange channel structure 100 and the heat transfer medium is discharged from the ports 114 and 124 formed in the middle of the heat exchange channel structure 100. negatively explained. However, the embodiment is not limited thereto. The roles of the ports 114 and 124 formed in the middle of the heat exchange channel structure 100 and the ports 112 and 114 formed at both ends may be interchanged. In this case, the heat transfer medium is introduced through the ports 114 and 124 formed in the middle of the heat exchange channel structure 100, and the heat transfer medium may be discharged through the ports 112 and 122 on both ends of the heat exchange channel structure 100. there is. In the heat exchange channel structure 100, the ratio, position, and size of the interdigitated heat exchange region IK may be variously changed depending on the application field.

Additionally, each of the first heat exchange channel 110 and the second heat exchange channel 120 may have a spiral structure. When the first heat exchange channel 110 and the second heat exchange channel 120 have a spiral tubular channel structure, the heat transfer medium can smoothly flow along a predetermined path (ie, 110 or 120) regardless of its flow rate. . However, the structure/shape of the first heat exchange channel 110 and the second heat exchange channel 120 may be changed.

FIG. 2 shows a case in which the ratio of the interdigitated heat exchange area (IK) (ie, overlapping area) is 64% in the heat exchanger of FIG. 1 according to another embodiment. Figure 2 (A) is a perspective view of the heat exchanger, (B) is a side view. The heat exchanger of FIG. 2 can be said to have an IK-64% configuration.

FIG. 3 shows a case in which the ratio of the interdigitated heat exchange area (IK) (ie, overlapping area) is 82% in the heat exchanger of FIG. 1 according to another embodiment. Figure 3 (A) is a perspective view of the heat exchanger, (B) is a side view. The heat exchanger of FIG. 3 can be said to have an IK-82% configuration.

4 is a view showing a heat exchanger according to a first comparative example. Figure 4 (A) is a perspective view of the heat exchanger, (B) is a side view.

Referring to (A) and (B) of FIG. 4 , the heat exchanger according to the first comparative example may include a heat exchange channel structure 100, and the heat exchange channel structure 100 may include a first heat exchange channel 110 and a second heat exchange channel structure 100. 2 heat exchange channels 120 may be provided. The first heat exchange channel 110 and the second heat exchange channel 120 may be provided to be engaged with each other over the entire area of the heat exchange channel structure 100 . In other words, the first heat exchange channel 110 and the second heat exchange channel 120 may be engaged with each other in the entire area from the first end E1 to the second end E2 of the heat exchange channel structure 100 . Therefore, the ratio of the interdigitated heat exchange area IK is 100%. The heat exchanger according to the first comparative example of FIG. 4 can be said to have an IK-100% configuration.

5 is a view showing a heat exchanger according to a second comparative example. Figure 5 (A) is a perspective view of the heat exchanger, (B) is a side view.

Referring to (A) and (B) of FIG. 5 , the heat exchanger according to the second comparative example may include a heat exchange channel structure 100, and the heat exchange channel structure 100 is a single heat exchange channel 110 ) can be configured. A 1-1 port 112 for injecting the heat transfer medium may be provided at one end of the heat exchange channel 110, and a 1-2 port 114 for discharging the heat transfer medium at the other end of the heat exchange channel 110. may be provided. The one end of the heat exchange channel 110 may correspond to the first end E1' of the heat exchange channel structure 100, and the other end of the heat exchange channel 110 may correspond to the second end of the heat exchange channel structure 100. (E2') may be applicable. The heat exchanger according to the second comparative example of FIG. 5 can be said to have an S-100% configuration. Here, S means single.

According to the comparative example with reference to FIG. 5 , the heat exchange channel structure 100 includes only the interdigitated heat exchange region IK, and includes a region where the first heat exchange channel 110 or the second heat exchange channel 120 performs heat exchange alone. I never do that. In this case, compared to the embodiment with reference to FIGS. 1 to 3 , when the amount of heat generated or the temperature characteristics of each region of the device are non-uniform, the heat exchange performance of the heat exchange channel structure 100 may deteriorate. Also, according to the comparative example with reference to FIG. 5 , the heat exchange channel structure 100 may include only one heat exchange channel 110 . In this case, since the temperature of the heat transfer medium entering the 1-1 port 112 of the heat exchange channel 110 gradually changes as it proceeds to the 1-2 port 114, the temperature of the device (not shown) becomes non-uniform and overall Heat exchange performance may deteriorate.

6 is a perspective view illustrating a device 20 that may be a target for heat exchange by a heat exchanger according to an exemplary embodiment. 7 is a cross-sectional view of device 20 .

6 and 7 exemplarily show that the coil unit 22 is disposed inside the stator unit 23, but the embodiment is not limited thereto. The coil unit 22 may be disposed outside the stator unit 23 .

Referring to FIGS. 6 and 7 , the device 20 may include a stator unit 23 and a rotor unit 25 . The stator unit 23 may include a yoke 21 and a coil unit 22 disposed between teeth of the yoke 21 . A slot may be provided between them of the yoke 21 . The yoke 21 may have a cylindrical shape having a hollow part. A plurality of them may be formed on the inner circumferential surface of the yoke 21 . The coil unit 22 may be disposed between a plurality of them. The coil unit 22 may be a winding coil regularly wound along a plurality of them.

A plurality of teeth are formed on the yoke 21 and the coil unit 22 may be positioned between them. The rotor unit 25 may be disposed in a hollow defined inside the stator unit 23 . The rotor unit 25 may have a rotation shaft 24 at its center. Also, the rotor unit 25 may include a permanent magnet or a semi-permanent magnet. The heat exchanger may exchange heat with the device 20 by the flow of a heat transfer medium in heat exchange channels formed along the outer or inner circumferential surface of the device 20 .

In the case of a motor (electric motor) or generator of a vehicle, performance and energy efficiency can be greatly improved by increasing the heat exchange performance and lowering the temperature. By lowering the temperature, parameters such as magnetic field density inside the motor or generator can be improved, and energy efficiency can be increased. In addition, overheating prevention and proper temperature control may play an important role in preventing thermal damage and extending the life of a motor or generator.

8 is a view for explaining a heat exchanger according to another embodiment.

Referring to FIG. 8 , the first heat exchange channel 110 may be engaged with the second heat exchange channel 120 in the interdigitated heat exchange region IK. The first heat exchange channel 110 may not engage with the second heat exchange channel 120 in the region 1S. The second heat exchange channel 120 may be engaged with the first heat exchange channel 110 in the interdigitated heat exchange region IK. The second heat exchange channel 120 may not engage with the first heat exchange channel 110 in the region 2S. Unlike FIG. 1 , in FIG. 8 , the size of the region 1S and the size of the region 2S may be different from each other. Although FIG. 8 shows a case where the size of the area 1S is larger than that of the area 2S, the embodiment is not limited thereto. For example, the size of region 1S may be smaller than that of region 2S.

In the embodiment of FIG. 8 , the area 1S where the first heat exchange channel 110 performs heat exchange alone and the area 2S where the second heat exchange channel 120 performs heat exchange independently may have different sizes. . That is, the heat exchange channel structure 100 may have an asymmetrical shape. The heat exchange channel structure 100 shown in FIG. 8 may be used for heat exchange in a device in which heat is generated asymmetrically.

9 is a view for explaining a heat exchanger according to another embodiment.

The heat exchange channel structure 100 may include four heat exchange channels 110 , 120 , 130 , and 140 . At least two of the heat exchange channels 110 , 120 , 130 , and 140 may be engaged with each other in the interlocking heat exchange regions IK_12 and IK_34 of the heat exchange channel structure 100 . In the remaining regions of the heat exchange channel structure 100 except for the interdigitated heat exchange regions IK_12 and IK_34, one heat exchange channel may independently perform heat exchange. Here, performing heat exchange independently may indicate that one heat exchange channel performs heat exchange without interlocking with another heat exchange channel.

The first heat transfer medium may flow into the first heat exchange channel 110 at coordinate x1i and be discharged from the first heat exchange channel 110 at coordinate x1o. Assuming that the heat exchange channel structure 100 performs heat exchange to lower the temperature of the device, the temperature of the first heat transfer medium may increase while moving from the coordinate x1i to the coordinate x1o. Accordingly, the temperature of the heat exchange channel structure 100 in region 1S may increase toward the right.

The second heat transfer medium may flow into the second heat exchange channel 120 at coordinates y1i and be discharged from the second heat exchange channel 120 at coordinates y1o. Therefore, the advancing directions of the first heat transfer medium and the advancing directions of the second heat transfer medium in the interdigitated heat exchange region IK_12 may be opposite to each other. Assuming that the heat exchange channel structure 100 performs heat exchange to lower the temperature of the device, the temperature of the second heat transfer medium may increase while moving from coordinates y1i to coordinates y1o. In the interlocking heat exchange region IK_12, the temperature of the first heat transfer medium may increase toward the right, and the temperature of the second heat transfer medium may increase toward the left. Therefore, the temperature of the interdigitated heat exchange region IK_12 can be kept constant or changed at a smaller rate of change than that of the region 1S.

The fourth heat transfer medium may flow into the fourth heat exchange channel 140 at coordinates y2i and be discharged from the fourth heat exchange channel 140 at coordinates y2o. In the region 4S where the fourth heat exchange channel 140 performs heat exchange alone, the temperature of the heat exchange channel structure 100 may increase toward the left. In the interdigitated heat exchanging region IK_14, the traveling direction of the first heat transfer medium and the traveling direction of the fourth heat transfer medium may be opposite to each other. Assuming that the heat exchange channel structure 100 lowers the temperature of the device by performing heat exchange, the temperature of the fourth heat transfer medium may increase while moving from the coordinates y2i to the coordinates y2o. In the interlocking heat exchange region IK_14, the temperature of the first heat transfer medium may increase toward the right, and the temperature of the fourth heat transfer medium may increase toward the left. Therefore, the temperature of the interdigitated heat exchange region IK_14 can be kept constant or changed at a smaller rate of change than that of the region 1S or region 4S.

The third heat transfer medium may be introduced into the third heat exchange channel 130 at coordinate x2i and discharged from the third heat exchange channel 130 at coordinate x2o. The advancing directions of the third heat transfer medium and the fourth heat transfer medium in the interdigitated heat exchange region IK_34 may be opposite to each other. Assuming that the heat exchange channel structure 100 performs heat exchange to lower the temperature of the device, the temperature of the third heat transfer medium may increase while moving from the coordinate x2i to the coordinate x2o. In the interlocking heat exchange region IK_34, the temperature of the third heat transfer medium may increase toward the right, and the temperature of the fourth heat transfer medium may increase toward the left. Accordingly, the temperature of the interdigitated heat exchange region IK_34 can be kept constant or changed at a smaller rate of change than that of the region 1S or region 4S.

According to the embodiment shown in FIG. 9, in the regions 1S and 4S where heat exchange is performed by one heat exchange channel, the temperature of the heat exchange channel structure 100 changes according to the change in position, while the interlocking heat exchange regions IK_12 and IK_ad , IK_34), since the temperature of the heat exchanging structure 100 does not change or the rate of change is small, various temperature characteristics can be provided for each region of the device.

10 is a view for explaining a heat exchanger according to another embodiment.

Referring to FIG. 10 , the entire second heat exchange channel 120 may be engaged with the first heat exchange channel 110 . On the other hand, some regions 1S of the first heat exchange channel 110 may not engage with the second heat exchange channel 120 . That is, the first heat exchange channel 110 may include both a region IK engaged with other heat exchange channels and a region 1S not engaged with other heat exchange channels. On the other hand, substantially all regions of the second heat exchange channel 120 may be engaged with the first heat exchange channel 110 . Although FIG. 10 exemplarily shows the case where the interlocking heat exchange region IK is located on the right side, the embodiment is not limited thereto. For example, the interdigitated heat exchange region IK may be located on the left side. 10, the entire area of the first heat exchange channel 110 may be engaged with the second heat exchange channel 120, and some of the second heat exchange channel 120 may not be engaged with the first heat exchange channel 110. can

11 is a view for explaining a heat exchanger according to another embodiment.

Referring to FIG. 11 , the entire second heat exchange channel 120 may be engaged with the first heat exchange channel 110 . On the other hand, the two regions 1S of the edge of the first heat exchange channel 110 may not engage with other heat exchange channels. Unlike in FIG. 10 , the second heat exchange channel 120 may be located in the center of the first heat exchange channel 110 without being biased to either side. Accordingly, the edge region 1S of the first heat exchange channel 110 may not engage with the second heat exchange channel 120 . The size of the two edge regions 1S may be the same. Thus, the heat exchange channel structure 100 may have a symmetrical structure. However, the embodiment is not limited thereto. For example, the two edge regions 1S may have different sizes, and in this case, the heat exchange channel structure 100 may have an asymmetrical structure.

12 is a view for explaining a heat exchanger according to another embodiment.

Referring to FIG. 12 , the entire second heat exchange channel 120 may be engaged with the first heat exchange channel 110 . On the other hand, the two edge regions 1S_1 and 1S_2 of the first heat exchange channel 110 may not engage with other heat exchange channels. Unlike in FIG. 11 , in FIG. 12 , the two areas 1S_1 and 1S_2 may have different sizes. Therefore, the heat exchange channel structure 100 of FIG. 11 may have an asymmetrical structure.

13 is a view for explaining a heat exchanger according to another embodiment.

Referring to FIG. 13 , the heat exchange channel structure 100 may include a first heat exchange channel and a second heat exchange channel. The first heat exchange channel may include two or more branch channels 110a and 110b. The branch channels 110a and 110b may have a port branching structure branched from the ports 110c and 110d. The ports of the heat transfer medium may be formed in the ports 110c and 110d. The heat transfer medium may be injected into the first heat exchange channel through one of the ports 110c and 110d and discharged from the first heat exchange channel through the other port. For example, the heat transfer medium may be injected through the port 110c and the heat transfer medium may be discharged through the port 110d. As another example, the heat transfer medium may be injected through the port 110d and discharged through the port 110c.

Since the first heat exchange channel includes a plurality of branch channels 110a and 110b, the heat transfer medium injected into the first heat exchange channel can be dispersed and flowed in the branch channels 110a and 110b. Through this, parameters such as resistance to the heat transfer medium in the first heat exchange channel may be adjusted.

Likewise, the second heat exchange channel may include two or more branch channels 120a and 120b. Branch channels 120a and 120b may communicate with each other through ports 120c and 120d. The heat transfer medium may be injected into the second heat exchange channel through one of the ports 120c and 120d and discharged from the first heat exchange channel through the other port. For example, the heat transfer medium may be injected through the port 120c and the heat transfer medium may be discharged through the port 120d. As another example, the heat transfer medium may be injected through the port 120d and discharged through the port 120c.

By allowing the second heat exchange channel to include a plurality of branch channels 120a and 120b, the heat transfer medium injected into the second heat exchange channel can be dispersed and flowed in the branch channels 120a and 120b. Through this, parameters such as resistance to the heat transfer medium in the second heat exchange channel may be adjusted.

13 shows a case where both the first heat exchange channel and the second heat exchange channel each include two or more branch channels. However, the embodiment is not limited thereto. For example, one of the first heat exchange channel and the second heat exchange channel may include two or more branch channels, and the other may be composed of a single channel. However, in the IK region, both heat exchange channels may be composed of only branched channels or only single channels. Add

14 is a view for explaining a heat exchanger according to another embodiment.

Referring to FIG. 14 , the first heat exchange channel 110 and the second heat exchange channel 120 may be engaged with each other in the interdigitated heat exchange region IK-II. The first heat exchange channel 110 may not engage with the second heat exchange channel 120 in the region 1S. The second heat exchange channel 120 may not engage with the first heat exchange channel 110 in the region 2S.

In region 1S, the first heat exchange channel 110 may be configured as a single channel. Likewise, the second heat exchange channel 120 in region 2S may be configured as a single channel. In the interdigitated heat exchange region IK-II, the first heat exchange channel 110 may branch into two branch channels 110a and 110b. The branch channels 110a and 110b may have a port branching structure branched from the port 110c. Similarly, in the interdigitated heat exchange region IK-II, the second heat exchange channel 120 may branch into two branch channels 120a and 120b. The branch channels 120a and 120b may have a port branching structure branching from the port 120c. As shown in FIG. 14, each of the first heat exchange channel 110 and the second heat exchange channel 120 is branched into a plurality of branch channels in the interdigitated heat exchange region IK-II, so that the two channels do not engage region 1S, 2S), the resistance of each channel and the resistance of each channel may be different in the region (IK) where the two channels are engaged.

In FIG. 14 , the case where the size of the area 1S and the area 2S are the same is shown as an example, but the embodiment is not limited thereto. For example, regions 1S and 2S may have different sizes. That is, the heat exchange channel structure 100 may have an asymmetrical structure rather than a symmetrical structure. In addition, although FIG. 14 exemplarily shows that both the first heat exchange channel 110 and the second heat exchange channel 120 branch into two or more branch channels in the interdigitated heat exchange region IK-II, the embodiment is limited thereto. It is not. For example, only one of the first heat exchange channel 110 and the second heat exchange channel 120 may branch into two or more branch channels in the interdigitated heat exchange region IK-II.

15 is a view for explaining a heat exchanger according to another embodiment.

Referring to FIG. 15 , a heat exchange channel structure 100 according to another embodiment may include a first heat exchange channel 110 and a second heat exchange channel 120 . The first heat exchange channel 110 may branch into a 1-1 heat exchange channel 110a and a 1-2 heat exchange channel 110b. The 1-1st heat exchange channel 110a and the 1-2nd heat exchange channel 110b may have a branched port structure branching from the port 110c. The second heat exchange channel 120 may branch into a 2-1 heat exchange channel 120a and a 2-2 heat exchange channel 120b. The 2-1 heat exchange channel 120a and the 2-2 heat exchange channel 120b may have a branched port structure branching from the port 120c. The 1-1 heat exchange channel 110a, 1-2 heat exchange channel 110b, 2-1 heat exchange channel 120a, and 2-2 heat exchange channel 120b are engaged with each other in the center of the heat exchange area to perform heat exchange together. can do.

The heat exchanger according to the embodiment may be changed in various ways. For example, cases in which two heat exchange channels are partly engaged may be shown in Table 1.

symmetrical or non-symmetrical
(An area is provided at both ends of the IK area where each of the two channels performs heat exchange independently) insertion type
(An area where the same channel independently performs heat exchange is provided at both ends of the IK area) bias
(In one end of the IK area, an area where one channel performs heat exchange independently is provided) SIS
(1S + IK + 2S) sIS
(1S + IK + 1S) SI
(1S + IK) SIIS
(1S + IK-II + 2S) sIIS
(1S + IK-II + 1S) SII
(1S + IK-II) SIIB
(1S + IK-II +2B) sIIB
(1S + IK-II + 1B) BIIB
(1B + IK-II + 2B) bIIB
(1B + IK-II + 1B) BII
(1B + IK-II) SBIIS
(1S + 1B + IK-II + 2S) sbIIS
(1S + 1B + IK-II + 1S) SBIIB
(1S + 1B + IK-II + 2B) sbIIB
(1S + 1B + IK-II + 1B) SBII
(1S + 1B + IK-II) SBIIBS
(1S + 1B + IK-II + 2B + 2S) sbIIBS
(1S + 1B + IK-II + 1B + 1S)

In Table 1, 'S' in the symbol representing the shape of each heat exchange channel structure represents an area in which heat exchange is performed by a single channel, 'B' represents an area in which heat exchange is performed by channels branched from the single channel, 'I' represents a region where two heat exchange channels are engaged in a single channel structure to perform heat exchange, and 'II' represents a region in which two heat exchange channels are engaged in a branched channel structure to perform heat exchange. Symbols indicated in parentheses have the same meaning as symbols of regions used in FIGS. 1 to 15 .

The embodiments shown in Table 1 are merely illustrative, and the embodiments are not limited thereto. For example, in Table 1, only two heat exchange channels were considered, but as shown in FIG. 9, three or more heat exchange channels may be included in the heat exchange channel structure.

16 is a view for explaining a heat exchanger according to another embodiment. FIG. 17 is a diagram showing the heat exchange principle of the heat exchanger more simply by omitting the electric motor from the structure shown in FIG. 16 . FIG. 18 is an exploded view showing the structure of FIG. 16 .

Referring to FIGS. 16 to 18 , the device 20 to be subjected to heat exchange may be seated in an inner space defined by the cover 310 and the housing 320 . The heat exchange channel structure 100 may include heat exchange channels 110 and 120 formed in a spiral structure in the inner space of the housing 320 . The first heat exchange channel 110 and the second heat exchange channel 120 are installed in the inner space of the housing 320 to move the heat transfer medium while forming a spiral shape. The first heat exchange channel 110 and the second heat exchange channel 120 may perform heat exchange with the outer circumferential surface of the stator unit 23 of the device 20 facing the inner circumferential surface of the housing 320 . In addition, the first heat exchange channel 110 and the second heat exchange channel 120 may perform heat exchange with end wiring of the coil unit 22 through the filled heat dissipation material.

Referring to FIG. 16 , the cover 310 may include a surface perpendicular to the rotation axis 24 of the device 20 . A bearing housing 390 for installing the rotating shaft 24 and the bearing 330 may be formed at the center of the cover 310 . The bearing 330 may stably maintain the position of the rotary shaft 24 in the bearing housing 390 when the rotary shaft 24 rotates and reduce friction loss caused by rotation.

16 and 18, the cover 310, the housing 320, and the bearing housing 390 provide a chamber space in which the stator unit 23 and the rotor unit 25 of the device 20 are embedded. It can be. In a state where the stator and rotor unit 25 are built in, a spare space of the chamber may exist in an area where the terminal wiring of the coil unit 22 is located. An air nozzle 314 may be formed in the cover 310 , and heat exchange by convection may be performed while air is introduced into and discharged from the chamber space through the air nozzle 314 .

Referring to FIG. 17 , the heat exchange channel structure 100 may include a first heat exchange channel 110 and a second heat exchange channel 120 . The first heat exchange channel 110 and the second heat exchange channel 120 may form a 1S region, an IK region, and a 2S region. The heat exchanger may include a first link channel 210 . The first link channel 210 may be connected to the 1-1 port 112 of the first heat exchange channel 110 and the 2-1 port 122 of the second heat exchange channel 120 . The heat transfer medium is branched from the first link channel 210 and flows into the first heat exchange channel 110 and the second heat exchange channel 120 through the 1-1 port 112 and the 2-1 port 122. can

The heat exchanger may further include a second link channel 220 . The second link channel 220 may include a 2-1 link channel 222 connected to the 1-2 port 114 and a 2-2 link channel 224 connected to the 2-2 port 124. can The 2-1 link channel 222 connects the first heat exchange channel 110 and the cover channel 312, and the 2-2 link channel 224 connects the second heat exchange channel 120 and the cover channel 312. ) can be connected.

16 to 18, after the heat transfer medium introduced into the heat exchange channel structure 100 passes through the first heat exchange channel 110 and the second heat exchange channel 120, the second link channel 220 Through this, heat exchange may be performed once more in the cover channel 312 . Through this, the heat exchange area is increased, and heat exchange is performed even on a surface perpendicular to the rotating shaft 24 of the device 20, so that the heat exchange efficiency can be increased.

19 is a conceptual diagram briefly illustrating the structure of a heat exchanger according to another exemplary embodiment. In describing the embodiment of FIG. 19 , overlapping content with FIGS. 16 to 18 will be omitted.

Referring to FIG. 19 , some of the heat transfer medium flowing into the 1-1 port 112 may flow into the first cover channel 312a formed inside the cover 310 through the first radiation channel 332. . The first radiation channel 332 may connect between the 1S region and the first cover channel 312a. A portion of the heat transfer medium of the first heat exchange channel 110 may be discharged through the first-second ports 114 and the remaining portion may be introduced into the first cover channel 312a through the first radiation channel 332 . To this end, the cross-sectional area of the first radiation channel 332 may be smaller than or equal to the cross-sectional area of the first heat exchange channel 110 . Here, the cross-sectional area may mean the cross-sectional area through which the heat exchanging medium passes in the corresponding channel. The first radiation channel 332 may include a plurality of channels. In this case, the cross-sectional area of the first radiation channel 332 may mean the sum of cross-sectional areas of a plurality of channels constituting the first radiation channel 332 . Since the cross-sectional area of the first radiation channel 332 is smaller than or equal to the cross-sectional area of the first heat exchange channel 110, the flow rate of the heat transfer medium passing through the first radiation channel 332 transfers heat introduced into the first heat exchange channel 110. It may be less than the flow rate of the medium. Accordingly, some of the heat transfer medium flowing into the first heat exchange channel 110 may proceed toward the first-second ports 114 .

Some of the heat transfer medium flowing into the 2-1 port 122 may flow into the second cover channel 312b through the second radiation channel 334 . The second radiation channel 334 may connect between the 2S region and the second cover channel 312b. A portion of the heat transfer medium of the second heat exchange channel 120 may be discharged through the 2-2 port 124 and the remaining portion may be introduced into the cover channel 312 through the second radiation channel 334 . To this end, the cross-sectional area of the second radiation channel 334 may be smaller than or equal to the cross-sectional area of the second heat exchange channel 120 . A portion of the heat transfer medium flowing into the second heat exchange channel 120 may proceed toward the 2-2 port 124 and the remaining portion may proceed toward the second cover channel 312b.

The heat exchanger may include a second link channel 220 connected to the first and second cover channels 312a and 312b, the 1-2 port 114 and the 2-2 port 124. The heat transfer medium discharged from the 1-2 ports 114 and 2-2 ports 124 and the first and second cover channels 312a and 312b may be discharged to the outside through the second link channel 220. there is.

As shown in FIG. 19, a part of the heat transfer medium introduced into the heat exchange channel structure moves inside the heat exchange channel structure (ie, the first and second heat exchange channels 110 and 120), and the remaining part moves in the first and second radiation channels. It may move to the first and second cover channels 312a and 312b through the channels 332 and 334 and perform heat exchange in the first and second cover channels 312a and 312b. Through this, the heat transfer medium having a relatively lower temperature than the case of FIGS. 16 to 18 may flow into the first and second cover channels 312a and 312b to perform heat exchange.

20 is a diagram for explaining a heat exchanger according to another exemplary embodiment. FIG. 21 is a diagram for explaining the embodiment of FIG. 20 in more detail. In describing the embodiments of FIGS. 20 and 21 , overlapping content with those of FIGS. 16 to 19 will be omitted.

Referring to FIGS. 20 and 21 , the 1-1 port 112 may not be formed at the end of the 1S region, but may be formed in the middle of the 1S region. Accordingly, the first heat exchange channel 110 may include an area in which the heat transfer medium flows in a first direction (right) and an area in which the heat transfer medium flows in a second direction (left). Among the first heat exchange channels 110, the heat transfer medium may flow in the second direction in the left area of the 1-1 port 112, and the heat transfer medium may flow in the first direction in the right side of the 1-1 port 112.

The 2-1 port 122 may also be formed in the middle of the 2S region instead of being formed at the end of the 2S region. In the second heat exchange channel 120, the heat transfer medium may flow in the second direction in the left area of the 2-1 port 122, and the heat transfer medium may flow in the first direction in the right side of the 2-1 port 122.

In general, when the heat transfer medium moves in one direction, the temperature increases as the heat transfer medium progresses, and thus the heat transfer performance may be slightly reduced. On the other hand, as shown in FIGS. 20 and 21, the 1-1 port 112 and the 2-1 port 122 are respectively located in the middle region of the first heat exchange channel 110 and the second heat exchange channel 120, respectively. When formed, the heat transfer medium flowing into the 1-1 port 112 and the 2-1 port 122 may diverge and proceed in different directions. The thermal characteristics of the heat exchanger may be adjusted by adjusting the positions of the 1-1 port 112 and the 2-1 port 122 .

22 is a schematic diagram showing the structure of a heat exchanger according to another exemplary embodiment. In the description of the embodiment of FIG. 22 , contents overlapping with the above description will be omitted.

Referring to FIG. 22, compared to FIG. 19, the first link channel 210 may include a 1-1 link channel 212, a 1-2 link channel 214, and a flow branch control unit 218. . The flow branch control unit 218 may control the transfer flow rate of the heat transfer medium between the 1-1st link channel 212 and the 1-2nd link channel 214 . The flow rate of the heat transfer medium transmitted by each of the 1-1st link channel 212 and the 1-2nd link channel 214 may be adjusted by the flow rate branch control unit 218 . The heat exchanger may have different heat transfer characteristics or temperature characteristics for each region of the heat exchange channel structure by using the flow branch control unit 218 . For example, when there is a heat bias in the central region of the heat exchange channel structure 100, the heat exchanger reduces the amount of the heat transfer medium flowing into the 1-1 link channel 212 and the 1-2 link channel 214 It is possible to solve the heat bias phenomenon by increasing the amount of the heat transfer medium flowing into the heat transfer medium. When there is a heat bias in the edge region of the heat exchange channel structure 100, the heat exchanger reduces the amount of the heat transfer medium flowing into the 1-2 link channel 214 and transfers the heat introduced into the 1-1 link channel 212. The heat bias phenomenon can be solved by increasing the amount of the medium.

The heat transfer medium introduced through the 1-1 port 112 and the 1-3 port 113 may be discharged through the 1-2 port 114 . Among the first heat exchange channels 110, between the 1-1 port 112 and the 1-2 port 114, the heat transfer medium moves in the first direction (right direction), and the 1-3 port 113 and Between the 1-2 ports 114, the heat transfer medium may move in the second direction (left direction).

The heat transfer medium introduced through the 2-1 port 122 and the 2-3 port 123 may be discharged to the 2-2 port 124 . Between the 2-1 port 122 and the 2-2 port 124 of the second heat exchange channel 120, the heat transfer medium moves in the second direction (left direction), and the 2-3 port 123 and Between the 2-2 ports 124, the heat transfer medium may move in a first direction (rightward direction).

The above-described example is only an example, and the embodiment is not limited thereto. For example, the flow direction of the heat transfer medium may be opposite to the flow direction described above. As described above, the heat exchange temperature characteristics of the heat exchange channel structure 100 can be easily changed by increasing the number of ports through which the heat transfer medium enters and exits, and controlling the flow rate between the plurality of link channels by the flow branch controller 218.

23 is a schematic diagram showing the structure of a heat exchanger according to another exemplary embodiment. In the description of the embodiment of FIG. 23 , contents overlapping with the above description will be omitted.

Referring to FIG. 23 , the movement amount of the heat transfer medium between the 1-1 link channel 212 and the 1-2 link channel 214 may be controlled by the flow branch control unit 218 . The first radiation channel 332 may connect between the 1S region and the first cover channel 312a, and the second radiation channel 324 may connect between the 2S region and the second cover channel 312b. A cross-sectional area of the first radiation channel 322 may be smaller than that of the first heat exchange channel 110 . A cross-sectional area of the second radiation channel 324 may be smaller than that of the second heat exchange channel 120 .

24 is a schematic diagram of a structure of a heat exchanger according to another exemplary embodiment. In the description of the embodiment of FIG. 24 , details overlapping with the above description will be omitted.

Referring to FIG. 24, the heat exchanger includes a heat exchange channel structure 100, a 1-1 link channel 212, a 1-2 link channel 214, a flow branch control unit 218, and a 2-1 link channel 222 ) and the 2-2 link channel 224.

The 1-1 port 112 may be located in the middle of the first heat exchange channel 110, not at the end. Accordingly, the heat transfer medium introduced into the 1-1 port 112 may be discharged through the 1-2 port 114 and the 1-4 port 115 . The heat transfer medium introduced into the 1-3 port 113 may be discharged through the 1-2 port 114 . The heat transfer medium moves in the second direction (left) between the 1-4 port 115 and the 1-1 port 112, and between the 1-1 port 112 and the 1-2 port 114 , the heat transfer medium may move in a first direction (right), and the heat transfer medium may move in a second direction between the 1-2 port 114 and the 1-3 port 113 .

The 2-1 port 122 may be located in the middle of the second heat exchange channel 120, not at the end. Accordingly, the heat transfer medium introduced into the 2-1 port 122 may be discharged to the 2-2 port 124 and the 2-4 port 125 . The heat transfer medium introduced into the 2-3 port 123 may be discharged through the 2-2 port 124 . The heat transfer medium moves in the first direction (right) between the 2-4 port 125 and the 2-1 port 122, and between the 2-1 port 122 and the 2-2 port 124 The heat transfer medium may move in the second direction, and the heat transfer medium may move in the first direction between the 2-4 port 124 and the 2-3 port 123.

The 2-1st link channel 222 is connected to the 1-2nd port 114 and the 1-4th port 115, and the heat transfer medium discharged from the 1-1st and 1-4th ports 114 and 115 may be delivered to the cover channel 312. The 2-2nd link channel 224 is connected to the 2-2nd port 124 and the 2-4th port 125, and the heat transfer medium discharged from the 2-2nd and 2-4th ports 124 and 125 may be delivered to the cover channel 312.

25 is a schematic diagram of a structure of a heat exchanger according to another exemplary embodiment. In the description of the embodiment of FIG. 25 , overlapping content with the above description will be omitted.

Referring to FIG. 25, the heat exchanger includes a second link channel 220, a 1-1 link channel 212, a 1-2 link channel 214, a flow branch control unit 218, and first and second heat exchange channels. (110, 120) and first and second radiation channels (332, 334). The cross-sectional area of the first radiation channel 332 may be smaller than or equal to the cross-sectional area of the first heat exchange channel 110 . The cross-sectional area of the second radiation channel 334 may be smaller than or equal to the cross-sectional area of the second heat exchange channel 120 . In the embodiment of FIG. 25, compared to FIG. 23, the first heat exchange channel 110 extends further to the left from the 1-1 port 112, and the second heat exchange channel 120 extends to the 2-1 port 122. can be further extended to the right. Accordingly, the heat transfer medium flowing into each of the 1-1 port 112 and the 2-1 port 122 may branch and proceed in both directions.

26 is a diagram for explaining a heat exchanger according to another embodiment.

Referring to FIG. 26 , one end of the first heat exchange channel 110 and one end of the second heat exchange channel 120 may communicate with each other through the first connection link channel 352 . The end of the first heat exchange channel 110 and the end of the second heat exchange channel 120 may communicate through the second connection link channel 354 . A heat transfer medium may flow into the port 119 formed in the center of the first heat exchange channel 110 . The heat transfer medium introduced through the port 119 may be transferred to both ends of the first heat exchange channel 110 . The heat transfer medium transferred to both ends of the first heat exchange channel 110 may flow into both ends of the second heat exchange channel 120 through the first and second connection link channels 352 and 354 . In this process, the heat transfer medium may pass through the cover channel 312 . The heat transfer medium introduced to both ends of the second heat exchange channel 120 may be discharged through a port 129 formed in the center of the second heat exchange channel 120 . According to the embodiment of FIG. 26, the heat transfer medium in the first heat exchange channel 110 proceeds from the central port 119 to both ends of the first heat exchange channel 110, while the heat transfer medium in the second heat exchange channel 120 It may proceed from both ends of the second heat exchange channel 120 to the port 129 at the center of the second heat exchange channel 120 . Accordingly, the flow directions of the heat transfer medium in the first and second heat exchange channels 110 and 120 in the interdigitated heat exchange region IK may be opposite to each other.

26 shows that the heat transfer medium flows into the first heat exchange channel 110 and is transferred to the second heat exchange channel 120 through the cover channel 312 . However, the embodiment is not limited thereto. For example, the heat transfer medium may flow into the first heat exchange channel 110 through the cover channel 312 after flowing into the second heat exchange channel 120 .

27 is a diagram for explaining a heat exchanger according to another exemplary embodiment. In the description of the embodiment of FIG. 27 , details overlapping with those described above will be omitted.

Referring to FIG. 27, the heat exchange channel structure may include an IK region and 1S regions provided at both ends of the IK region. The 1S regions may be connected to the first and second cover channels 312a and 312b through the first radiation channel 332 and the second radiation channel 334 . In the embodiment shown in FIG. 27, since all of the heat transfer medium introduced into the first heat exchange channel 110 must move to the first and second cover channels 312a and 312b, the cross-sectional area of the first radiation channel 332 and the second The cross-sectional area of the radiation channel 334 may be greater than or equal to the cross-sectional area of the first heat exchange channel 110 . Similarly, the cross-sectional area of the first radiation channel 332 and the cross-sectional area of the second radiation channel 334 may be greater than or equal to the cross-sectional area of the second heat exchange channel 120 .

28 is a diagram for explaining a heat exchanger according to another exemplary embodiment. In the description of the embodiment of FIG. 28 , overlapping contents with those described above will be omitted.

Referring to FIG. 28 , the heat exchanger may include a first link channel 210 , a second link channel 220 , a flow branch control unit 218 and a cover channel 312 . The first heat exchange channel 110 and the second heat exchange channel 120 may form an IK region and 1S regions provided at both ends of the IK region.

The heat exchanger may adjust the flow rate of the heat transfer medium introduced into the 1-1 port 112 , the 2-1 port 122 , and the 1-3 port 113 using the flow branch controller 218 . Through this, the heat exchanger can adjust the temperature characteristics of each region of the heat exchange channel structure.

The second link channel 220 may be connected to the 1-2 port 114 , the 2-2 port 124 and the 2-4 port 225 . The second link channel 220 may be connected to the cover channel 312 . The heat exchange medium discharged from the heat exchange channel structure may be discharged to the outside through the cover channel 312 .

29 is a view showing a heat exchanger according to another exemplary embodiment by way of example.

Referring to FIG. 29 , the heat exchanger may include a first link channel 210, a flow branch control unit 218, a second link channel 220, a first radiation channel 332 and a second radiation channel 334. there is. The 1S regions may be connected through the cover channel 312 , the first radiation channel 332 and the second radiation channel 334 . A portion of the heat transfer medium flowing into the first heat exchange channel 110 may flow into the cover channel 312 and the other portion may move into the second link channel 220 . Therefore, each of the cross-sectional area of the first radiation channel 332 and the cross-sectional area of the second radiation channel 334 may be smaller than or equal to the cross-sectional area of the first heat exchange channel 110 .

Hereinafter, simulation results for explaining the heat exchange effect exhibited by at least some of the embodiments of the present invention will be described.

FIG. 30 is a simulation result obtained by evaluating temperature changes of a stator unit and a coil unit of the energy conversion device due to the operation of the heat exchanger when the heat exchanger according to the second comparative example described with reference to FIG. 5 is applied to the energy conversion device. .

Referring to FIG. 30 , the heat exchanger according to Comparative Example 2 includes a heat exchange channel structure 100 composed of S-100% configuration, that is, one heat exchange channel 110. In this case, the movement path of the heat transfer medium in the heat exchange channel structure 100 is one. A heat transfer medium is injected through the 1-1 port (112 in FIG. 5) of the heat exchange channel 110, performs heat exchange while passing through the heat exchange channel 110, and is discharged through the 1-2 port (114 in FIG. 5). do. Therefore, although the temperature of the heat transfer medium is relatively low in the 1-1 port (112 in FIG. 5), the temperature of the heat transfer medium gradually increases toward the 1-2 port (114 in FIG. 5). As a result, since the cooling performance decreases from one end of the energy conversion device to the other end, the temperature gradually increases. This phenomenon appears similarly in the stator unit and coil unit.

Therefore, a large temperature difference occurs depending on the region of the energy conversion device, and isothermal cooling (isothermal control) may not be performed. As such, if there is a temperature deviation in the heat exchange process, a difference in expansion rate of the device may occur due to this, and as a result, problems such as damage to the device, reduced efficiency, or shortened lifespan may occur.

In addition, as shown in the lower part of FIG. 30 , it can be confirmed that the temperature of the left portion of the cross section of the stator unit is considerably high as a result of the simulation. Under the % composition of S-100, it can be seen that a high-temperature region with a 31 ° C isotherm is formed in the lower left region. That is, in the configuration of S-100%, there may be a problem in that the temperature difference inside the stator unit is large and a high-temperature region is formed widely.

FIG. 31 is a simulation result obtained by evaluating temperature changes of the stator unit and coil unit of the energy conversion device due to the operation of the heat exchanger when the heat exchanger according to Comparative Example 1 described with reference to FIG. 4 is applied to the energy conversion device. .

Referring to FIG. 31, the heat exchanger has an IK-100% configuration, that is, a configuration in which the first and second heat exchange channels 110 and 120 are interdigitated over the entire area of the heat exchange channel structure 100. In this case, the first heat transfer medium is injected through the 1-1 port (112 in FIG. 4) of the first heat exchange channel 110 located at one end of the heat exchange channel structure 100 to form the first heat exchange channel 110. After passing through, the second heat is transferred through the 2-1 port (122 in FIG. 4) of the second heat exchange channel 120 discharged to the other end of the heat exchange channel structure 100 and located at the other end of the heat exchange channel structure 100. After the medium is injected and passes through the second heat exchange channel 120, it is discharged to one end of the heat exchange channel structure 100. Therefore, the first heat transfer medium and the second heat transfer medium flow in opposite directions to have an effect of offsetting a temperature increase due to heat exchange. For this reason, when the heat exchanger according to IK-100% of FIG. 31 is used than when the heat exchanger according to S-100% of FIG. 30 is used, the temperature deviation in the stator unit and the coil unit can be relatively greatly reduced.

However, when using a heat exchanger having an IK-100% configuration as shown in FIG. 31, it may be difficult to precisely control the temperature of a device having a heat bias. In addition, when using a heat exchanger having an IK-100% configuration as shown in FIG. 9 , it may be difficult to easily and precisely control the temperature of a deep part of the device.

In addition, as shown in the lower part of FIG. 31 , as a result of the simulation, although the cross-sectional temperature of the stator unit is relatively decreased compared to that shown in FIG. 30 , it can be seen that a region having a temperature higher than the 31° C. isotherm is still widely distributed. In particular, at the left and right ends of the stator unit corresponding to the vicinity of the end wiring of the coil, it can be seen that the temperature is relatively higher than that of the center while isotherms soar high.

32 is a simulation result of evaluating the temperature change of the stator unit and the coil part of the energy conversion device due to the operation of the heat exchanger when the heat exchanger according to the embodiment of the present invention described with reference to FIG. 3 is applied to the energy conversion device. to be.

Referring to FIG. 32, the heat exchanger according to the present embodiment has an IK-82% configuration, that is, a configuration in which the first and second heat exchange channels 110 and 120 are engaged with each other in about 82% of the heat exchange channel structure 100. have After the first heat transfer medium is injected through the 1-1 port (112 in FIG. 3 ) of the first heat exchange channel 110 located at one end of the heat exchange channel structure 100 and passes through the first heat exchange channel 10c After being discharged, the second heat transfer medium is injected through the 2-1 port 122 of the second heat exchange channel 120 located at the other end of the heat exchange channel structure 100 and passes through the second heat exchange channel 120. It is discharged. As the first heat transfer medium and the second heat transfer medium flow in opposite directions, an effect of offsetting a temperature increase due to heat exchange in the interdigitated heat exchange region (IK in FIG. 3 ) may be exhibited. In addition, in the region 1S of the heat exchange channel structure 100, cooling can be mainly performed only by the portion of the first heat exchange channel 110 without the intervention of the second heat exchange channel 120, and the region of the heat exchange channel structure 100 ( In 2S), cooling may be mainly performed only by the portion of the second heat exchange channel 120 without intervention of the first heat exchange channel 110 .

Accordingly, temperature deviations in the stator unit and the coil unit may be relatively significantly reduced compared to the case of using the heat exchanger according to the second comparative example of FIG. 30 . In addition, it is possible to more precisely control the temperature of a device having a thermal bias, and more easily and precisely control the temperature of a deep part of the device. As a result, even if there is a heat localization phenomenon in a device such as an electric motor (motor) or a generator, it is possible to properly control the heat localization phenomenon and efficiently perform heat exchange (i.e., cooling), and the durability/lifetime, efficiency, performance, etc. of the device are improved. can be improved In addition, since the heat exchanger according to the embodiment can perform heat exchange efficiently/at low cost in a water-cooled manner while having a relatively simple structure, it may be considerably advantageous in terms of environmental issues, ease of manufacture, and convenience of application.

In addition, as shown in the lower part of FIG. 32 , it can be confirmed that the phenomenon of soaring isotherms of the cross-sectional temperature of the stator unit at the left and right ends is reduced as a result of the simulation. Due to this, it can also be confirmed that the region where the temperature is higher than the 31 ° C isotherm is relatively reduced.

In the heat exchanger according to the embodiment of the present invention, it is possible to appropriately control the ratio of the meshed heat exchange area according to the characteristics of the applied device, and form a high efficiency cooling performance and temperature profile from the optimal meshed heat exchange area ratio. there is.

FIG. 33 is a simulation result obtained by evaluating temperature changes of the stator unit and coil unit of the energy conversion device due to the operation of the heat exchanger when the heat exchanger according to the embodiment described with reference to FIG. 2 is applied to the energy conversion device. The heat exchanger according to this embodiment has an IK-64% configuration, that is, a configuration in which the first and second heat exchange channels 110 and 120 are engaged with each other in about 64% of the heat exchange channel structure 100.

As shown in the lower part of FIG. 33 , as a result of the simulation, the temperature of the stator unit is lower than that shown in FIG. 32 , and it can be seen that the 31° C. isotherm moves downward compared to FIG. 32 . In addition, a region having a temperature higher than 31° C. may be limited to only a part of the center.

34 is a simulation result of evaluating the temperature change of the stator unit and the coil unit of the energy conversion device due to the operation of the heat exchanger when the heat exchanger according to the embodiment of the present invention described with reference to FIG. 1 is applied to the energy conversion device. to be. The heat exchanger according to the present embodiment has an IK-46% configuration, that is, a configuration in which the first and second heat exchange channels 110 and 120 are interdigitated at about 46% of the heat exchange channel structure 100.

As shown in the lower part of FIG. 34 , it can be confirmed that the temperature of the stator unit is lower than that shown in FIG. 16 as a result of the simulation and the 31° C. isotherm moves downward compared to FIG. 13 . In addition, a region having a temperature higher than 31° C. may be limited to only a part of the center.

35 is an evaluation result showing a temperature distribution in a cross section of a stator core 21 of the energy conversion device when the heat exchanger according to the second comparative example described with reference to FIG. 5 is applied to the energy conversion device. .

Referring to FIG. 35 , the heat exchanger according to Comparative Example 2 includes a heat exchange channel structure 100 composed of S-100% configuration, that is, one heat exchange channel 110 . In this case, as described above with reference to FIG. 30, the cooling performance decreases toward the first-second port 114 of the heat exchange channel structure 100, and the temperature of the stator unit 21 of the energy conversion device rises. . These temperature deviations are indicated by isotherms and colors. In particular, it can be confirmed that a large temperature deviation occurs in the inner region of the stator unit 21, that is, in the deep portion.

FIG. 36 is an evaluation result showing a temperature distribution in a cross section of the stator unit 21 of the energy conversion device when the heat exchanger according to Comparative Example 1 described with reference to FIG. 4 is applied to the energy conversion device.

Referring to FIG. 36, the heat exchanger according to Comparative Example 1 has an IK-100% configuration, that is, a configuration in which the first and second heat exchange channels 110 and 120 are engaged with each other over the entire area of the heat exchange channel structure 100. In this case, while the first heat transfer medium and the second heat transfer medium flow in opposite directions, an effect of offsetting the temperature increase due to heat exchange can be obtained, and the stator unit 21 ) can be relatively reduced.

However, while isothermal cooling (isothermal control) can be achieved to some extent on the surface (external surface) of the stator unit 21, isothermal cooling (isothermal control) is easily achieved in the inner region of the stator unit 21, that is, in the core. may not support In particular, a temperature of the core portion in both end regions A1 and A2 of the stator unit 21 may be higher than that of the remaining regions. In the performance and efficiency of an actual device, the temperature profile of the core may be more important than the temperature profile of the outer surface. When a temperature deviation occurs in the core part, energy efficiency may be lowered or thermal shock may be caused. According to an embodiment of the present invention, as shown in FIG. 31 and the like, these problems can be overcome relatively easily.

37 is an evaluation result showing a temperature distribution in a cross section of the stator unit 21 of the energy conversion device when the heat exchanger according to the embodiment of the present invention described with reference to FIG. 3 is applied to the energy conversion device.

Referring to FIG. 37, the heat exchanger according to this embodiment has an IK-82% configuration, that is, a configuration in which the first and second heat exchange channels 110 and 120 are engaged with each other in about 82% of the heat exchange channel structure 100. have In this case, relative supercooling may be achieved in both end regions of the heat exchange channel structure 100 where the first and second heat exchange channels 110 and 120 are not engaged than in the heat exchange region where the first and second heat exchange channels 110 and 120 are not engaged (IK in FIG. 3 ). Isothermal cooling (isothermal control) may be performed in the interlocking heat exchange area (IK in FIG. 3 ) by the interlocking configuration. As a result, isothermal cooling (isothermal control) with little temperature deviation in the deep region of the stator unit 21 can be achieved. Accordingly, cooling performance and cooling efficiency can be increased, and durability (life), efficiency, performance, and the like of the device can be significantly improved. In this way, when the heat exchanger according to the embodiment is used, the temperature of the device having the heat bias phenomenon can be more easily and precisely controlled, and in particular, the temperature of the core of the device can be more easily and precisely controlled.

38 is an evaluation result showing a temperature distribution in a cross section of the stator unit 21 of the energy conversion device when the heat exchanger according to the embodiment of the present invention described with reference to FIG. 2 is applied to the energy conversion device.

39 is an evaluation result showing a temperature distribution in a cross section of the stator unit 21 of the energy conversion device when the heat exchanger according to the embodiment of the present invention described with reference to FIG. 1 is applied to the energy conversion device.

Comparing the results of FIGS. 37 to 39, the temperature profile of the core of the device can be easily controlled by controlling the ratio of the area where the first and second heat exchange channels are interlocked, and also according to the configuration and heat generating characteristics of the device. Optimization of the temperature distribution may be possible.

40 is a sample structure showing how the temperature of the surface portion of the isothermal heating element 50 is changed when a single heat exchange channel 110 is provided on the isothermal heating element 50 and the heat transfer medium flows from one end to the other end thereof (Fig. A). ) (planar view) and the resulting graph (B drawing). Here, the sample structure may correspond to the heat exchanger according to Comparative Example 2 described with reference to FIG. 5 (ie, the heat exchanger having the S-100% configuration).

Referring to (A) and (B) of FIG. 40, as the heat transfer medium goes from one end (ie, point a) to the other end (ie, point b) of the single heat exchange channel 110, the cooling performance decreases and the temperature increases, The surface temperature of the lamp heating element 50 may also gradually increase while going from point a to point b. As a result, relatively large temperature deviations may occur.

41 shows the surface portion of the lamp heating body 50 when the first and second heat exchange channels 110 and 120 are disposed on the lamp heating body 50 so as to overlap in all areas and the heat transfer medium flows in the opposite direction. These are the sample structure (Figure A) (plan view) and the resulting graph (Figure B) showing how the temperature changes. Here, the sample structure may correspond to the heat exchanger according to Comparative Example 1 described with reference to FIG. 4 (that is, the heat exchanger having the IK-100% configuration).

Referring to (A) and (B) of FIG. 41 , while the first heat transfer medium moves in the first direction through the first heat exchange channel 110, the temperature rises, and through the second heat exchange channel 120, the first heat transfer medium moves in the first direction. Since the temperature rises while the second heat transfer medium moves in a second direction opposite to the first direction, an effect of offsetting the temperature increase due to heat exchange may appear as the first and second heat transfer media flow in opposite directions. Therefore, a uniform cooling effect as a whole, that is, isothermal cooling, may be possible on the surface of the isothermal heating element 50 . However, when a device generating heat has a heat bias phenomenon, isothermal cooling/isothermal control may be practically impossible with the configuration of the heat exchange channel as shown in FIG. 35 .

42 is provided with the first and second heat exchange channels 110 and 120 on the lamp heating element 50, but arranged so as to overlap in some areas instead of the entire area, and when the heat transfer medium flows in the opposite direction, the lamp heating element 50 ) It is a sample structure (A drawing) (plan view) and a result graph (B drawing) showing how the temperature of the surface part changes. Here, the sample structure may correspond to the heat exchanger according to the embodiment of the present invention described with reference to FIGS. 1 to 3 .

Referring to (A) and (B) of FIG. 42 , in the area where the first and second heat exchange channels 110 and 120 overlap, that is, in the area x1 to x2, isothermal cooling/isothermal control by the offset effect of the temperature rise. can be done Meanwhile, relative supercooling by the first heat exchange channel 110 may be performed in the area a to x1, and relative supercooling may be performed by the second heat exchange channel 120 in the area x2 to b. When a device that generates heat has a heat bias with high temperature at both ends, isothermal cooling/isothermal control can be performed at a depth of a predetermined depth or at the surface by using a heat exchange channel configuration as shown in FIG. 36 .

FIG. 43 is a side view illustrating an energy conversion device assembly in which the heat exchange channel structure 100 of the heat exchanger according to the comparative example is applied to the energy conversion device 300. Referring to FIG.

Referring to FIG. 43 , the heat exchange channel structure 100 of the heat exchanger according to the comparative example may be the same as that described with reference to FIG. 4 . The energy conversion device 300 may be the same as described with reference to FIG. 7 . The heat exchange channel structure 100 may be disposed to surround an outer surface of the energy conversion device 300 . The heat exchange channel structure 100 may directly or indirectly contact the outer surface of the energy conversion device 300 . Reference numeral 22 denotes a coil part described with reference to FIGS. 6 and 7 .

One end of the coil unit 22 may protrude to the outside of the heat exchanger toward the first end E1 of the heat exchange channel structure 100 . Similarly, the other end of the coil unit 22 may protrude to the outside of the heat exchanger toward the second end E2 of the heat exchange channel structure 100 . Since both ends of the coil unit 22 protrude to the outside of the heat exchanger, that is, to the outside of the heat exchange channel structure 100, both ends of the coil unit 22 do not come into contact with the metal member and can only come into contact with air. . Therefore, cooling by the heat exchange channel structure 100 may not be performed well at both ends of the coil unit 22 . As a result, both ends of the energy conversion device 300 along the longitudinal direction may be heated to a relatively high temperature, and in particular, the temperature of the core of the both ends of the energy conversion device 300 may be high.

In the heat exchanger according to the embodiment, the interlocking heat exchange area (overlapping area/intersecting area) of the first heat exchange channel and the second heat exchange channel is controlled to be less than 100% to overcool some areas of the heat exchange channel structure, thereby increasing the temperature of the core of the device can be controlled uniformly or substantially uniformly.

43 is a side view showing an energy conversion device assembly in which the heat exchange channel structure 100 of the heat exchanger is applied to the energy conversion device 300 according to an embodiment of the present invention.

Referring to FIG. 43 , the heat exchange channel structure 100 of the heat exchanger according to the embodiment may be the same as or similar to that described with reference to FIG. 2 . The energy conversion device 300 may be the same as described with reference to FIG. 7 . The heat exchange channel structure 100 may be disposed to surround an outer surface of the energy conversion device 300 . The heat exchange channel structure 100 may directly or indirectly contact the outer surface of the energy conversion device 300 . Reference numeral 22 denotes a coil part described with reference to FIGS. 6 and 7 .

One end of the coil unit 22 may protrude to the outside of the heat exchanger toward the first end E1 of the heat exchange channel structure 100 . Similarly, the other end of the coil unit 22 may protrude to the outside of the heat exchanger toward the second end E2 of the heat exchange channel structure 100 . Both ends of the coil unit 22 may be heated to a relatively high temperature, but the heat exchange area between the first heat exchange channel 110 and the second heat exchange channel 110 is controlled to be less than 100%, so that the heat exchange channel structure 100 ), the temperature of the core of the energy conversion device 300 can be uniformly or substantially uniformly controlled.

The foregoing example is merely one of various embodiments of the present invention. Embodiments of the present invention may include various modified embodiments in which temperature characteristics may be different for each position by using at least two or more channels to display an interdigitated heat exchanging region and a non-interdigitated region.

According to at least one embodiment described above, even if there is a heat localization phenomenon in a device such as a motor (electric motor) or a generator, a heat exchanger capable of properly controlling the heat localization phenomenon and efficiently performing heat exchange (ie, cooling) can be implemented. there is. In addition, it is possible to efficiently perform heat exchange while having a relatively simple structure, and it is possible to implement a heat exchanger having an advantageous configuration and driving method in terms of environmental problems, ease of manufacture, and convenience of application. By applying the heat exchanger according to this embodiment, a device assembly (ex, energy conversion device assembly) having excellent heat exchange performance can be implemented, and in this case, durability (life), efficiency, performance, etc. of the device assembly can be improved. there is.

According to an embodiment of the present invention, it is possible to efficiently cool the device while fundamentally overcoming the disadvantages of conventional cooling by spraying oil or using a sealing configuration such as a cylinder to block oil inflow. In addition, a low-cost, high-efficiency heat exchange device can be implemented using a relatively simple heat exchange channel structure without using an auxiliary cooling device or a resin-type heat dissipation material used to cool an existing device having heat bias.

In this specification, preferred embodiments of the present invention have been disclosed, and although specific terms have been used, they are only used in a general sense to easily explain the technical details of the present invention and help understanding of the present invention, and do not limit the scope of the present invention. It is not meant to be limiting. It is obvious to those skilled in the art that other modifications based on the technical idea of the present invention can be implemented in addition to the embodiments disclosed herein. For example, those skilled in the art will know that the heat exchanger according to the embodiments described with reference to FIGS. 1 to 43 and the energy conversion device assembly including the heat exchanger may be modified in various ways. will be. As a specific example, it will be appreciated that the heat exchanger according to the embodiment may be applied to devices other than energy conversion devices such as electric motors or generators. Therefore, the scope of the invention should not be determined by the described embodiments, but by the technical idea described in the claims.

* Description of symbols for main parts of drawings *
100: heat exchange channel structure
110: first heat exchange channel
120: second heat exchange channel
1S: Area in which the first heat exchange channel performs heat exchange alone
2S: Area in which the second heat exchange channel performs heat exchange alone
1B: Area in which branch channels of the first heat exchange channel perform heat exchange
2B: Area in which branch channels of the second heat exchange channel perform heat exchange
IK: area where the first and second heat exchange channels are engaged

Claims (12)

In a heat exchanger that performs heat exchange with a predetermined device,
A heat exchange channel structure for performing heat exchange through the flow of a heat transfer medium by forming a heat exchange area for heat exchange with the device;
The heat exchange channel structure includes a plurality of heat exchange channels having a spiral shape,
The heat exchange channel structure has a structure in which any one of the first heat exchange channel and the second heat exchange channel included in the plurality of heat exchange channels includes at least one of a single channel structure and a branched channel structure, and independently performs heat exchange. A channel heat exchange region, and an interlocking heat exchange region in which the first heat exchange channel and the second heat exchange channel have either a single channel interlocking structure or a branch channel interlocking structure and engage each other to perform heat exchange,
The spiral shape of the first heat exchange channel and the spiral shape of the second heat exchange channel share the same center line, and the independent channel heat exchange area is arranged along the traveling direction of the center line at the edge of the interdigitated heat exchange area. According to claim 1,
When the independent channel heat exchange region includes a branched channel structure,
The heat exchanger of claim 1 , wherein the first heat exchange channel or the second heat exchange channel constituting the independent channel heat exchange region is branched into two or more channels within the independent channel heat exchange region. According to claim 1,
When the first heat exchange channel and the second heat exchange channel in the meshing heat exchange area have a branch channel meshing structure,
In the interlocking heat exchange area, the 1-1 heat exchange channel and the 1-2 heat exchange channel formed by branching of the first heat exchange channel, and the 2-1 heat exchange channel and 2-2 heat exchange formed by branching of the second heat exchange channel A heat exchanger in which channels are interlocked to perform heat exchange. According to claim 1,
The heat exchange channel structure includes an 1S region in which the first heat exchange channel performs heat exchange independently and an IK region in which the first heat exchange channel and the second heat exchange channel are engaged with each other to perform heat exchange. According to claim 1,
The heat exchange channel structure includes an IK region in which the first heat exchange channel and the second heat exchange channel are engaged with each other to perform heat exchange, an 1S region formed at one end of the IK region and in which the first heat exchange channel independently performs heat exchange, and the A heat exchanger comprising a 2S region formed at the other end of the IK region and in which the second heat exchange channel independently performs heat exchange. According to claim 5,
A 1-1 port is formed in the 1S region, a 2-1 port is formed in the 2S region, and a 1-2 port and a 2-2 port are formed at a boundary of the IK region. According to claim 5,
The first heat exchange channel further includes a 1-1 port formed in the 1S region and a 1-3 port formed in the IK region, and the second heat exchange channel includes a 2-1 port formed in the 2S region and an IK Further comprising 2-3 ports formed in the region,
a 1-1 link channel connected to the 1-1 port and the 2-1 port;
a 1-2 link channel connected to the 1-3 ports and the 2-3 ports; And a flow rate branch control unit for controlling the flow rate of the heat transfer medium entering and exiting the heat exchange channel structure through the 1-1 link channel and the flow rate of the heat transfer medium entering and exiting the heat exchange channel structure through the 1-2 link channel. heat exchanger. According to claim 5,
a cover channel provided inside a cover in which the predetermined device is embedded;
a first radiation channel connecting at least a portion of the 1S region and the cover channel; and
A heat exchanger comprising a second radiation channel connecting at least a portion of the 2S region and the cover channel. According to claim 1,
The heat exchange channel structure includes an IK region in which the first heat exchange channel and the second heat exchange channel are engaged with each other to perform heat exchange, and 1S regions located at both ends of the IK region and in which the first heat exchange channel independently performs heat exchange. heat exchanger. According to claim 9,
The heat transfer medium introduced through the port formed in any one of the first heat exchange channel and the second heat exchange channel is branched to both ends of the one channel, and the connection link channel and cover channel provided at both ends of the one channel to pass through,
Heat exchange configured so that the heat transfer medium passing through the connection link channel and the cover channel is introduced into both ends of the other one of the first heat exchange channel and the second heat exchange channel and discharged through a port formed in the other one channel energy. According to claim 9,
The first heat exchange channel includes ports 1-1 and 1-3 formed in the 1S regions and ports 1-2 formed in the IK region;
The second heat exchange channel includes a 2-1 port formed in the IK region, and a 2-2 port and a 2-4 port formed at a boundary of the IK region. According to claim 9,
The heat exchanger further comprising a radiation channel connecting between the 1S regions and a cover channel provided inside a cover in which the predetermined device is embedded.

Images