TW202147749A - Method for manufacturing heat conduction device, heat conduction device manufactured by method for manufacturing heat conduction device, method for manufacturing motor, motor manufactured by method for manufacturing motor - Google Patents

Abstract

The invention discloses a method for manufacturing a heat conduction device, a heat conduction device manufactured by the method for manufacturing a heat conduction device, a method for manufacturing a motor and a motor manufactured by the method for manufacturing a motor. The manufacturing method of the heat-conducting device includes: a plate manufacturing step: manufacturing a plate with a plurality of flow channels, the plurality of flow channels are respectively arranged along an axis parallel to each other through the plate and do not communicate with each other, and each flow channel has a first opening and a second opening formed at both ends of the plate; positioning step: making the first opening of each flow channel and the second opening of the adjacent flow channel abut against each other expect the first and second openings adjacent to the two long sides opposite to each other of the plate , so that the plurality of flow channels communicate with each other; a connecting step: fixing the two ends of the plate so as to form a spiral flow channel by the plurality of flow channels.

Description

Manufacturing method of heat conducting device and heat conducting device manufactured therefrom, manufacturing method of motor and manufactured motor

The present invention relates to a manufacturing method of a heat-conducting device and a heat-conducting device, a manufacturing method of a motor and a motor thereof, in particular a manufacturing method of a heat-conducting device suitable for heat dissipation of a motor and a heat-conducting device thereof, and particularly a method of a motor having a heat-conducting device Manufacturing method and motor manufactured therefrom.

The conventional water-cooling device for a motor has a complicated manufacturing process, which in turn leads to a high manufacturing cost.

The invention discloses a manufacturing method of a heat conducting device, a manufacturing method of a heat conducting device, a motor and a manufactured motor, which are mainly used to improve the problem of complicated manufacturing process of conventional water cooling devices for motors.

One embodiment of the present invention discloses a method for manufacturing a heat conducting device, which includes: a plate manufacturing step: manufacturing a plate, wherein the plate has a plurality of flow channels, the flow channels are not communicated with each other, and the plurality of flow channels are The channels are respectively arranged along an axis parallel to each other through the plate, and each flow channel forms a first opening and a second opening at both ends of the plate; a positioning step: Except for the two opposite to each other adjacent to the plate Outside the first opening and the second opening of the long side, the first opening of each flow channel and the second opening of the adjacent flow channel are abutted against each other, so that the plurality of flow channels are communicated with each other; The two ends of the abutting plate pieces are fixed to each other, so that a plurality of flow channels are connected to each other to form a spiral flow channel; wherein, the first opening and the second opening adjacent to the two long sides of the plate piece opposite to each other are respectively used In order to provide a heat-conducting fluid into the spiral flow channel, and to provide a heat-conducting fluid to flow out from the spiral flow channel.

One of the embodiments of the present invention discloses a method for manufacturing a motor: a heat-conducting device forming step and an installation step; the heat-conducting device forming step includes: a plate fabrication step: fabricating a plate having a plurality of flow channels, Each flow channel is not communicated with each other, and a plurality of flow channels are respectively arranged along an axis parallel to each other through the plate, and each flow channel forms a first opening and a second opening at both ends of the plate; a positioning Step: In addition to the first opening and the second opening adjacent to the two long sides of the plate that are opposite to each other, the first opening of each flow channel and the second opening of the adjacent flow channel are abutted against each other, so that more The flow channels are connected with each other; a connection step: fixing the two ends of the mutually abutting plate pieces to each other, so that the plurality of flow channels are connected to each other to form a spiral flow channel; wherein, adjacent to the two long sides of the plate pieces opposite to each other The first opening and the second opening of the side are respectively used for providing a heat-conducting fluid to flow into the spiral flow channel, and for providing a heat-conducting fluid to flow out from the spiral flow channel. The installation step: the heat-conducting device manufactured in the forming step of the heat-conducting device is sleeved on a casing of a motor, and the heat-conducting device and the casing are fixed to each other.

To sum up, the manufacturing method of the heat conducting device and the motor of the present invention have the advantages of low manufacturing cost and simple manufacturing process, and the manufactured heat conducting device can be widely installed in various motor casings.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and accompanying drawings of the present invention, but these descriptions and drawings are only used to illustrate the present invention, rather than make any claims to the protection scope of the present invention. limit.

In the following description, if it is indicated to refer to a specific figure or as shown in a specific figure, it is only used for emphasis in the subsequent description, and most of the related content mentioned appears in the specific figure, However, it is not limited that only the specific drawings may be referred to in this subsequent description.

Please refer to FIG. 1 to FIG. 6 together. FIG. 1 is a schematic flowchart of the first embodiment of the manufacturing method of the thermally conductive device of the present invention, and FIG. 2 is the fabrication of a plate according to the first embodiment of the manufacturing method of the thermally conductive device of the present invention. Schematic diagram of the board manufactured in the steps, FIG. 3 is a top view of FIG. 2 , FIG. 4 is a schematic diagram of the board in the process of the positioning step of the first embodiment of the manufacturing method of the heat conduction device of the present invention, and FIG. 5 is A schematic diagram of a plate manufactured after the positioning step of the first embodiment of the manufacturing method of the thermally conductive device of the present invention, and FIG. 6 is a schematic diagram of the thermally conductive device manufactured by the first embodiment of the manufacturing method of the thermally conductive device of the present invention .

The manufacturing method of the heat conducting device comprises: A plate fabrication step S11: A plate 1 is fabricated. The plate 1 has a plurality of flow channels 101, the flow channels 101 are not connected to each other, and the plurality of flow channels 101 pass through each other along an axis C that is parallel to each other. The plate is arranged, and each flow channel 101 forms a first opening 102 and a second opening 103 at both ends of the plate 1; A positioning step S12: Except for the first opening 102 and the second opening 103 adjacent to the two opposite long sides of the plate 1, the first opening 102 of each flow channel 101 and the second opening 102 of the adjacent flow channel 101 are aligned. The two openings 103 abut against each other, so that the plurality of flow channels 101 communicate with each other; A connecting step S13 : fix the two ends of the abutting plate 1 to each other, and connect a plurality of flow channels 101 to each other to form a spiral flow channel 106 ; The first opening 102 and the second opening 103 of the side 1A are respectively defined as an inflow inlet 102A and an inflow outlet 103A, the inflow inlet 102A is used to provide a heat-conducting fluid into the spiral flow channel 106, and the outflow outlet 103A is used to provide The heat transfer fluid flows out from the spiral flow channel 106 .

As shown in FIGS. 1 and 2 , in the plate fabrication step S1 in this embodiment, each flow channel 101 penetrates the plate along the axis C parallel to one of the long sides 1A of the plate 1 , And a plurality of flow channels 101 are formed in the plate member 1 side by side with each other. The manner of forming the plurality of flow channels 101 in the plate 1 is not limited here.

In the present embodiment, each flow channel 101 is roughly in the shape of a rectangular strip, and the first opening 102 and the second opening 103 are both rectangular as an example, but the shape of each flow channel 101 is not limited to this. In special applications, the flow channel 101 can also be in the shape of a cylindrical strip, and each of the first openings 102 and the second openings 103 can be correspondingly circular.

It is worth mentioning that in the plate fabrication step S1, the dimensions of the plurality of flow channels 101 formed are exactly the same, that is, the length, width and height of each flow channel 101 are exactly the same, and each The shapes of the first opening 102 and each of the second openings 103 are also the same.

As shown in FIG. 2 to FIG. 4 , in the positioning step S2, the plate 1 manufactured in the plate manufacturing step S11 may be bent by using the inclination rolling method, and the inclination angle in the inclination rolling method may be It is determined according to the width of each flow channel 101 and the distance between two adjacent flow channels 101, etc. Preferably, the inclination angle can be 10 degrees. That is to say, in the positioning step S12, the two ends of the plate 1 can be bent toward each other by using relevant mechanical equipment, and one end of the plate 1 is slightly twisted relative to the other end, so as to One end and the other end of the plate 1 are made to abut against each other in a staggered manner.

In practical applications, in the plate fabrication step S11 , the thickness T of the side walls 11 between the flow channels 101 may be no greater than 15 mm, so that in the positioning step S2 , it is relatively easy to The plurality of first openings 102 and the plurality of second openings 103 are abutted against each other.

As shown in FIG. 5 and FIG. 6 , in practical application, in the connecting step S14 , the two ends of the plate 1 can be connected and fixed to each other by means of welding, but not limited to this, in practical applications , the two ends of the board 1 can be connected to each other by selecting a corresponding method according to the actual material of the board 1 . It is worth mentioning that, as shown in FIGS. 2 to 5 , in the specific implementation of the positioning step S12, relevant tools, equipment, etc. may be used to bend the plate 1 shown in FIG. 2 into FIG. 4 . The state shown, and it can also be matched with a relevant fixture and other fixing mechanisms to make the two ends of the plate 1 stably abut against each other, so as to facilitate the relevant personnel or mechanical equipment to prevent the two parts of the plate 1 abutting each other. The ends are welded (ie, the connection step S14).

As shown in FIG. 4 to FIG. 6 , the heat conducting device 100 manufactured by the manufacturing method of the heat conducting device of the present invention will have an accommodating channel 107 in the middle, and the accommodating channel 107 can be used to cover the heat dissipation device Or outside the heating device, for example, the heat conduction device 100 can be used to cover the motor. When the motor is running, the cooling fluid L can flow into the spiral flow channel 106 from the inflow port 102A of the heat conduction device 100 . In this way, the cooling fluid will flow spirally from one end of the heat conducting device 100 to the other end of the heat conducting device 100 along the spiral flow channel 106, and finally leave the heat conducting device 100 through the outflow port 103A, and take away the motor accordingly. heat generated during operation. As shown in FIG. 6 , that is to say, after the cooling fluid L enters the heat conducting device 100 from the inflow port 102A, it will move from one end of the heat conducting device 100 to the other end along a spiral path P shown in the figure, and will be moved by the heat conducting device 100 from one end to the other end. The outflow port 103A of the device 100 flows out.

It should be noted that, in a specific implementation, a pipeline joint can also be fixed at the inflow port 102A and the outflow port 103A respectively, and the pipeline used to transport the heat transfer fluid can be easily connected to the spiral flow through the pipeline joint. Lane 106 is connected.

Please refer to FIG. 7 and FIG. 8 together. FIG. 7 is a schematic flowchart of the second embodiment of the manufacturing method of the thermally conductive device of the present invention, and FIG. 8 is produced by the second embodiment of the manufacturing method of the thermally conductive device of the present invention. Schematic diagram of the thermally conductive device.

As shown in FIG. 7 , the biggest difference between this embodiment and the previous embodiment is that: after the connecting step S13, it may further include: A sealing step S14 : sealing the first opening (ie the inflow port 102A) and the second opening (ie the outflow port 103A) adjacent to the two opposite long sides 1A of the plate 1 , so that the spiral flow channel is sealed shape; A perforation step S15 : forming a first perforation 104 and a second perforation 105 on the sidewall of the spiral flow channel. The first perforation 104 is used to provide a heat-conducting fluid to flow into the spiral flow channel, and the second perforation 105 is used to provide The heat transfer fluid in the adjacent helical flow channel flows out.

As shown in FIG. 8 , in practical application, in the sealing step S4 , a sealing member 2 may be fixed to the first openings adjacent to the two opposite long sides 1A of the plate member 1 (ie the aforementioned flow The inlet 102A) and the second opening (ie the aforementioned outlet 103A). The sealing member 2 may be made of the same material as the plate member 1 , and the sealing member 2 may be fixed to the plate member 1 by welding, for example. In different embodiments, the sealing member 2 may not be used to seal the first opening and the second opening. The periphery and the periphery of the second opening are respectively melted, and then relevant tools are used to seal the first opening and the second opening.

As shown in FIG. 8 , in the perforation step S15 , the first perforation 104 may be adjacent to the first opening (ie, the aforementioned inflow port 102A), and the second perforation 105 may be adjacent to the second opening ( That is, the aforementioned outflow port 103A), but the arrangement positions and arrangement numbers of the first through holes 104 and the second through holes 105 are not limited to those shown in the figures, and can be changed according to requirements.

It is worth mentioning that, in practical applications, a pipeline joint 3 may be installed on the first through hole 104 and the second through hole 105 respectively, and the pipeline joint 3 is used to connect with external pipelines , and the pipeline for conveying the heat-conducting fluid can communicate with the spiral flow channel in the heat-conducting device 100 through the pipeline joint 3 .

Please refer to FIG. 9 to FIG. 13 together. FIG. 9 is a schematic flowchart of the third embodiment of the manufacturing method of the thermally conductive device of the present invention, and FIG. 10 is the fabrication of a plate according to the third embodiment of the manufacturing method of the thermally conductive device of the present invention. 11 is a top view of FIG. 10 , FIG. 12 is a schematic diagram of the board during the positioning step of the third embodiment of the manufacturing method of the heat conducting device of the present invention, and FIG. 13 is A schematic diagram of the plate manufactured after the positioning step of the third embodiment of the manufacturing method of the heat conducting device of the present invention.

As shown in FIG. 9, the manufacturing method of the heat conducting device of the present embodiment includes: A plate manufacturing step S21 : manufacturing a plate 1 , the plate 1 has a plurality of flow channels 101 , the flow channels 101 are not connected to each other, and the plurality of flow channels 101 pass through each other along an axis C that is parallel to each other The plate is arranged, and each flow channel 101 forms a first opening 102 and a second opening 103 at both ends of the plate 1; A positioning step S22: Except for the first opening 102 and the second opening 103 adjacent to the two opposite long sides of the plate 1, the first opening 102 of each flow channel 101 and the second opening 102 of the adjacent flow channel 101 are aligned. The two openings 103 abut against each other, so that the plurality of flow channels 101 communicate with each other, and the first opening 102 and the second opening 103 adjacent to the two long sides 1A of the plate 1 are not formed with the plate 1 respectively. The end surface 13 of the second opening 103 and the end surface 13 without the first opening 102 abut against each other; A connecting step S23: fixing the two ends of the abutting plates 1 to each other, so that the plurality of flow channels 101 are connected to each other to form a spiral flow channel 106, and the spiral flow channel 106 is in a closed shape; A perforation step S24 : forming a first perforation 104 and a second perforation 105 on the sidewall of the spiral flow channel 106 . The first perforation 104 is used to provide a heat-conducting fluid to flow into the spiral flow channel, and the second perforation 105 can provide adjacent to the spiral flow channel. The heat transfer fluid in the spiral flow channel flows out.

As shown in FIG. 9 to FIG. 11 , the biggest difference between this embodiment and the previous embodiments is that the plate 1 produced in the plate fabrication step S21 of the manufacturing method of the heat conduction device of this embodiment includes the The central axis C of each flow channel 101 is not parallel to one of the long sides 1A of the plate 1 , and the plurality of flow channels 101 are arranged obliquely. That is to say, an included angle θ is formed between the central flow channel 101 of each of the flow channels 101 and the extension line of the long side 1A of the plate 1 , and whether the two are parallel to each other. In a preferred practical application, the included angle θ may range from 3 degrees to 30 degrees.

As shown in FIG. 10 to FIG. 12 , another difference between this embodiment and the previous embodiment is that in the positioning step S22 , in the process of bending the plate member 1 , there is no need to twist one end of the plate member 1 . . Please refer to FIG. 6 and FIG. 13 together. As shown in FIG. 6 , in the heat-conducting device 100 manufactured by the first embodiment of the above-mentioned manufacturing method of the heat-conducting device, the two ends of the heat-conducting device 100 will have protruding structures 12 ; On the contrary, as shown in FIG. 13 , in the heat conducting device 100 manufactured by the manufacturing method of the heat conducting device of the present embodiment, the opposite ends of the plate 1 are flat and not shown in the figure. 5 shows the protruding structure 12.

Please refer to FIG. 14 to FIG. 15 together. FIG. 14 is a schematic diagram of the manufacturing process of the motor manufacturing method of the present invention, and FIG. 15 is a schematic diagram of the motor manufactured by the motor manufacturing method of the present invention. The motor manufacturing method of the present invention includes: a heat-conducting device forming step and an installation step. The steps of forming the thermally conductive device are the same as the steps included in each of the foregoing embodiments of the manufacturing method of the thermally conductive device, and details are not described herein again. The installation step is as follows: the heat-conducting device 100 manufactured in the forming step of the heat-conducting device is sleeved on the casing 201 of a motor 200 , and the heat-conducting device 100 and the casing 201 are fixed to each other.

In practical applications, the diameter of the accommodating channel 107 included in the heat-conducting device 100 manufactured in the forming step of the heat-conducting device may be slightly smaller than the outer diameter of the casing 201 of the motor 200 , and the mounting step The motor 200 may be pressed into the accommodating channel 107 by using related equipment, so that the motor 200 and the heat conducting device 100 are fixed to each other in a tight fit.

In particular, in the installation step, the casing 201 of the motor 200 and the heat conduction device 100 may be fixed to each other first, and then the relevant motor components in the motor 200 are installed in the casing 201 of the motor 200; In the installation step, the motor 200 that can operate after being powered on may also be directly installed in the accommodating channel 107 of the heat conducting device 100 .

In particular, in the drawings included in the above-mentioned embodiments, the plate 1 is bent into a cylindrical shape as an example, but the manufacturing method of the heat conduction device of the present invention is not limited to the plate 1 is bent into a cylindrical shape, as long as the remaining first openings 102 and 103 of the non-inflow port 102A and the outflow port 103A can communicate with each other, and accordingly form a spiral flow channel 106, the plate 1 can be bent, Bend into any shape.

It should be noted that the heat conduction device manufactured by using any one of the embodiments of the heat conduction device of the present invention should be within the claimable scope of the patent application of the present invention, and the heat conduction device manufactured by the above-mentioned manufacturing method of the motor of the present invention should be within the scope of the claims of the present invention. The manufactured heat conducting device should also be within the claimable scope of the patent application scope of the present invention.

To sum up, the manufacturing method of the heat conducting device and the motor of the present invention have the advantages of low manufacturing cost and simple manufacturing process, and the manufactured heat conducting device can be widely installed in various motor casings.

The above descriptions are only preferred feasible embodiments of the present invention, which do not limit the scope of the present invention. Therefore, any equivalent technical changes made by using the contents of the description and drawings of the present invention are included in the protection scope of the present invention. .

100: heat conduction device 1: Plate 1A: Long side 101: runner 102: The first opening 103: Second Opening 102A: Flow inlet 103A: Outlet 104: First Piercing 105: Second Perforation 106: Spiral runner 107: accommodating channel 11: Side Wall 12: Protruding structure 13: End face 2: Seals 3: Pipe joints 200: Motor 201: Shell C: axis T: Thickness P: Spiral path L: cooling fluid

FIG. 1 is a schematic flow chart of the first embodiment of the manufacturing method of the heat conduction device of the present invention.

FIG. 2 is a schematic diagram of a panel manufactured in the panel manufacturing step of the first embodiment of the manufacturing method of the heat conduction device of the present invention.

FIG. 3 is a top view of FIG. 2 .

FIG. 4 is a schematic diagram of a plate during the positioning step of the first embodiment of the manufacturing method of the heat conduction device of the present invention.

FIG. 5 is a schematic diagram of a plate manufactured after the positioning step of the first embodiment of the manufacturing method of the heat conducting device of the present invention.

FIG. 6 is a schematic diagram of the heat conducting device manufactured by the first embodiment of the manufacturing method of the heat conducting device of the present invention.

FIG. 7 is a schematic flowchart of a second embodiment of the manufacturing method of the heat conduction device of the present invention.

FIG. 8 is a schematic diagram of a heat conducting device manufactured by the second embodiment of the manufacturing method of the heat conducting device of the present invention.

FIG. 9 is a schematic flowchart of a third embodiment of the manufacturing method of the heat conduction device of the present invention.

FIG. 10 is a schematic diagram of a panel manufactured in the panel manufacturing step of the third embodiment of the manufacturing method of the heat conduction device of the present invention.

FIG. 11 is a plan view of FIG. 10 .

FIG. 12 is a schematic diagram of a plate during the positioning step of the third embodiment of the manufacturing method of the heat conduction device of the present invention.

FIG. 13 is a schematic diagram of a plate manufactured after the positioning step of the third embodiment of the manufacturing method of the heat conducting device of the present invention.

FIG. 14 is one of the schematic diagrams in the manufacturing process of the manufacturing method of the motor of the present invention.

15 is a schematic diagram of a motor manufactured by the method for manufacturing a motor of the present invention.

S11~S13: Process steps

Claims (10)

A method of manufacturing a heat conducting device, comprising: A plate manufacturing step: manufacturing a plate, the plate has a plurality of flow channels, each of the flow channels is not communicated with each other, and the plurality of the flow channels are respectively along an axis parallel to each other. The plate is arranged, and each of the flow channels forms a first opening and a second opening at both ends of the plate; A positioning step: in addition to the first opening and the second opening adjacent to the two opposite long sides of the plate, the first opening of each of the flow channels is aligned with the adjacent The second openings of the flow channels abut against each other, so that a plurality of the flow channels communicate with each other; A connecting step: fixing the two ends of the abutting plates to each other, and connecting a plurality of the flow channels to each other to form a spiral flow channel. The method for manufacturing a heat conducting device according to claim 1, wherein each of the flow channels runs through the plate along the axis parallel to one of the long sides of the plate. The method for manufacturing a heat-conducting device according to claim 1, wherein, in the step of manufacturing the plate, each of the flow channels runs through all the channels along the axis that is not parallel to one of the long sides of the plate. the plate, and a plurality of the flow channels are arranged obliquely; wherein, in the positioning step, the first openings adjacent to the two long sides of the plate are aligned with the first openings. The second opening abuts against the end surface of the plate member without the second opening and the end surface without the first opening, and the spiral flow formed in the connecting step The channel is in a closed shape; wherein, after the connecting step, it further includes: a perforating step: forming a first perforation and a second perforation on the side wall of the spiral flow channel, and the first perforation is used to provide a The heat-conducting fluid flows into the spiral flow channel, and the second through holes are used to provide the heat-conducting fluid adjacent to the spiral flow channel to flow out. The method for manufacturing a heat conducting device according to claim 1, wherein after the connecting step, further comprising: A sealing step: sealing the first opening and the second opening adjacent to the two opposite long sides of the plate, so that the spiral flow channel is sealed; A perforation step: forming a first perforation and a second perforation on the side wall forming the spiral flow channel; wherein, the first perforation and the second perforation make the spiral flow channel communicate with the outside, and the The first through hole is used to provide a heat-conducting fluid to flow into the spiral flow channel, and the second through-hole is used to provide the heat-conducting fluid adjacent to the spiral flow channel to flow out. A heat-conducting device manufactured by the method for manufacturing a heat-conducting device according to claim 1. A method of manufacturing a motor: A heat-conducting device forming step, comprising: A plate manufacturing step: manufacturing a plate, the plate has a plurality of flow channels, each of the flow channels is not communicated with each other, and the plurality of the flow channels are respectively along an axis parallel to each other. The plate is arranged, and each of the flow channels forms a first opening and a second opening at both ends of the plate; A positioning step: in addition to the first opening and the second opening adjacent to the two opposite long sides of the plate, the first opening of each of the flow channels is aligned with the adjacent The second openings of the flow channels abut against each other, so that a plurality of the flow channels communicate with each other; A connecting step: fixing the two ends of the abutting plates to each other, and connecting a plurality of the flow channels to each other to form a spiral flow channel; An installation step: the heat-conducting device manufactured in the forming step of the heat-conducting device is sleeved on a casing of a motor, and the heat-conducting device and the casing are fixed to each other. The method for manufacturing a motor according to claim 6, wherein each of the flow passages penetrates the plate along the axis parallel to one of the long sides of the plate. The method for manufacturing a motor according to claim 6, wherein, in the plate manufacturing step, each of the flow passages runs through the plate along the axis that is not parallel to one of the long sides of the plate a plate, and a plurality of the flow channels are arranged obliquely; wherein, in the positioning step, the first openings adjacent to the two long sides of the plate are connected to the The second opening is respectively abutted against the end surface of the plate without the second opening and the end surface of the plate without the first opening, and the spiral flow channel formed in the connection step It is in a closed shape; wherein, after the connecting step, it also includes: a perforating step: forming a first perforation and a second perforation on the side wall of the spiral flow channel, and the first perforation is used to provide a heat conduction The fluid flows into the spiral flow channel, and the second perforation is used to provide the heat transfer fluid adjacent to the spiral flow channel to flow out. The method for manufacturing a motor according to claim 6, wherein after the connecting step, further comprising: A sealing step: sealing the first opening and the second opening adjacent to the two opposite long sides of the plate, so that the spiral flow channel is sealed; A perforation step: forming a first perforation and a second perforation on the side wall forming the spiral flow channel; wherein, the first perforation and the second perforation make the spiral flow channel communicate with the outside, and the The first through hole is used to provide a heat-conducting fluid to flow into the spiral flow channel, and the second through-hole is used to provide the heat-conducting fluid adjacent to the spiral flow channel to flow out. A motor manufactured by the method for manufacturing a motor according to claim 6.

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