WO2024058621A2 - Unité d'aimant de champ ayant une fonction de refroidissement - Google Patents

Unité d'aimant de champ ayant une fonction de refroidissement Download PDF

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Publication number
WO2024058621A2
WO2024058621A2 PCT/KR2023/013978 KR2023013978W WO2024058621A2 WO 2024058621 A2 WO2024058621 A2 WO 2024058621A2 KR 2023013978 W KR2023013978 W KR 2023013978W WO 2024058621 A2 WO2024058621 A2 WO 2024058621A2
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WO
WIPO (PCT)
Prior art keywords
field unit
cooling function
housing
coil
coil member
Prior art date
Application number
PCT/KR2023/013978
Other languages
English (en)
Korean (ko)
Other versions
WO2024058621A3 (fr
Inventor
유형주
최우희
황난경
유성권
Original Assignee
유형주
최우희
황난경
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020220116609A external-priority patent/KR102651519B1/ko
Priority claimed from KR1020220116605A external-priority patent/KR102649631B1/ko
Priority claimed from KR1020220116607A external-priority patent/KR102649633B1/ko
Priority claimed from KR1020220118886A external-priority patent/KR102649638B1/ko
Application filed by 유형주, 최우희, 황난경 filed Critical 유형주
Publication of WO2024058621A2 publication Critical patent/WO2024058621A2/fr
Publication of WO2024058621A3 publication Critical patent/WO2024058621A3/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/47—Air-gap windings, i.e. iron-free windings

Definitions

  • the present invention relates to a field unit applicable to a power conversion device, and particularly to a field unit with a cooling function configured to reduce heat accumulation by providing a refrigerant circulation structure.
  • a field unit with a cooling function that can be applied to a variety of use environments by providing a plurality of coil members and has a refrigerant circulation structure to reduce heat accumulation.
  • a field or field unit refers to a magnetic device that generates a magnetic field in an electrical device such as a motor or generator.
  • magnetic devices are configured such that a coil is wound around a bobbin made of ferrite.
  • a field unit one in which a coil is stored inside a cylindrical housing has been proposed.
  • Republic of Korea Patent No. 10-1735860 discloses an electromagnet composed of a flat plate shape.
  • the electromagnet or electromagnetic coil assembly disclosed herein has a structure in which an annular groove is formed in a pole piece made of a magnetizable material, a coil assembly is mounted there, and an armature plate is installed on the upper side.
  • FIG. 1 is a schematic diagram showing an example of a non-rotating power conversion device.
  • the power conversion device 100 is composed of a field unit 100A and an armature unit 100B in a stacked form.
  • Republic of Korea Patent No. 10-2332747 name: non-rotating direct current generator
  • published patent No. 10-2021-0140835 name: non-rotating alternating current generator
  • published patent It is disclosed in No. 10-2021-0141811 (name: Power conversion device).
  • a field unit includes a coil member around which a conductive line is wound.
  • the coil member is driven by alternating current or direct current, and is suitably driven by switching. In some applications the coil member is driven at high frequencies.
  • Coil members basically generate heat by resistance loss or eddy current.
  • Heat generated from the coil member may accumulate in the coil member.
  • excessive heat accumulation may occur. Heat accumulation in the coil member results in an increase in temperature of the conductors constituting the coil member.
  • the field unit may be equipped with multiple coil elements.
  • heat accumulation by the coil member may be more severe than in a typical field unit.
  • structural and spatial means for dispersing and discharging heat are required.
  • the simple addition of these means causes magnetic flux loss inside the field unit, causing a problem that greatly reduces the magnetic field generation efficiency of the field unit.
  • the present invention was created in consideration of the above circumstances, and its technical purpose is to provide a field unit configured to have a cooling function and prevent excessive heat accumulation in the coil member.
  • the technical purpose of the present invention is to provide a field unit that has a cooling structure and a plurality of coil members, and can minimize magnetic flux loss due to the cooling structure.
  • a field unit with a cooling function according to the present invention for realizing the above object is a field unit that generates a magnetic field when a field current is supplied, and includes a housing provided with a hollow portion in the center, and a conductor coated with an insulating material wound thereon.
  • a terminal for supplying field current and includes a coil member coupled to the housing, wherein the housing is disposed on one side of the coil member, has a disk shape, and has a hollow portion in the center.
  • a through hole for forming the part is formed, is installed and seated on the inside of the coil member, and is provided with a support member for supporting the upper and lower plates, and the upper plate has two or more first cut grooves from the outer periphery to the inner periphery.
  • the lower plate is provided with two or more second cut grooves from the outer periphery to the inner periphery, and the first cut groove and the second cut groove are in communication with each other through a support member.
  • a field unit with a cooling function according to the present invention for realizing the above object is a field unit that generates a magnetic field when a field current is supplied, and includes a housing provided with a hollow portion in the center, and a conductor coated with an insulating material wound thereon.
  • a terminal for supplying field current and includes a coil member coupled to the housing, wherein the housing is disposed on one side of the coil member, has a disk shape, and has a hollow portion in the center.
  • a field unit with a cooling function for realizing the above object is a field unit that generates a magnetic field when a field current is supplied, comprising a housing having a hollow portion in the center, and a field unit provided inside the housing. It is composed of two or more coil members, each of which is composed of a conductor coated with an insulating material wound in a ring shape, and is provided with a terminal for supplying field current, and one coil member is connected to the other coil member.
  • the sizes are set to be different so that two or more coil members can be arranged two or more in the same space, and the housing has a hollow interior, a ring member in which two or more coil members are disposed, and a ring member of the ring member.
  • An upper plate disposed on one side and having a through hole for forming a hollow portion in the central portion, a lower plate disposed on the other side of the ring member and having a through hole for forming a hollow portion in the central portion, and a ring-shaped one. and a sub-ring member disposed between the coil member and the adjacent coil member, wherein the upper plate is provided with two or more first cut grooves from the outer periphery to the inner periphery, and the lower plate is provided with two or more first cut grooves from the outer periphery to the inner periphery. Two or more second cut grooves are provided, and the first cut groove and the second cut groove are characterized in that they communicate with each other inside the housing.
  • a field unit with a cooling function for realizing the above object is a field unit that generates a magnetic field when a field current is supplied, comprising a housing provided with a hollow portion in the center and coated with an insulating material.
  • a ring in which a conductor is wound and has a terminal for supplying field current and includes a coil member coupled to the housing, wherein the housing has a hollow ring shape and the coil member is seated on the inside.
  • It has a lower plate in which a through hole for forming a hollow part is formed, the upper plate is provided with two or more first flow grooves from the outer periphery to the inner periphery, and the lower plate has two or more second flow grooves from the outer periphery to the inner periphery.
  • a groove is provided, and the first flow groove and the second flow groove communicate with each other inside the housing.
  • the housing is made of a material that can be magnetized, and the coil member is installed in close contact with the housing. Accordingly, the magnetic field generated by the coil member can be projected with high efficiency to other adjacent devices through the housing.
  • a plurality of ducts are provided in the housing while entirely surrounding the outer surface of the coil member.
  • the temperature of the housing and its interior rises due to heat conduction and heat radiation, and thus a flow of air occurs between the inside and outside of the housing. Convection of air occurs through the ducts described above. Additionally, heat energy inside the housing is released to the outside due to the flow of air through the duct, thereby preventing excessive heat energy from accumulating in the housing and coil member.
  • the housing is made of a material that can be magnetized.
  • a plurality of coil members are provided inside the housing.
  • Each coil member is provided with an input terminal for supplying field current, and these are each drawn out to the outside of the housing.
  • the field unit can be driven in various ways depending on how the input terminal of each coil member is properly wired or how field current is supplied to each input terminal.
  • all of the plurality of coil members are installed while being in close contact with the housing. Accordingly, the loss of the magnetic field generated in the coil member is minimized.
  • the housing is provided with a plurality of ducts for circulation of the refrigerant, and each duct is installed while passing through a plurality of coil members.
  • each duct is installed while passing through a plurality of coil members.
  • Figure 1 is a configuration diagram schematically showing an example of a power conversion device 100 including a field unit 100A and an armature unit 100B.
  • Figure 2 is a perspective view showing a field unit 1 with a cooling function according to an embodiment of the present invention.
  • Figure 3 is an exploded perspective view of the field unit 1 shown in Figure 2.
  • Figure 4 is a plan view showing the support member 13 disposed on the upper side of the lower plate 12 in Figure 3.
  • Figure 5 is a cross-sectional view showing the cross-sectional configuration along line A-A' in Figure 2.
  • Figure 6 is a perspective view showing a field unit 1 with a cooling function according to another embodiment of the present invention.
  • Figure 7 is an exploded perspective view of the field unit 1 shown in Figure 6.
  • FIG. 8 is a plan view showing the support member 13 disposed on the upper side of the lower plate 12 in FIG. 7.
  • Figure 9 is a cross-sectional view showing the cross-sectional configuration along line A-A' in Figure 6.
  • Figure 10 is a perspective view showing a field unit 1 with a cooling function according to another embodiment of the present invention.
  • Fig. 11 is an exploded perspective view of the field unit 1 shown in Fig. 10.
  • FIG. 12 is a plan view showing the support member 40, ring member 13, and sub-ring member 14 disposed on the upper side of the lower plate 12 in FIG. 11.
  • Figure 13 is a cross-sectional view showing the cross-sectional configuration along line A-A' in Figure 10.
  • Figure 14 is a perspective view showing the external shape of a field unit 1 with a cooling function according to another embodiment of the present invention.
  • Fig. 15 is an exploded perspective view of the field unit 1 shown in Fig. 14.
  • FIG. 16 is a plan view showing the support member 14 disposed on the upper side of the lower plate 13 in FIG. 15.
  • Figure 17 is a cross-sectional view showing the cross-sectional configuration along line A-A' in Figure 14.
  • a field unit with a cooling function according to the present invention for realizing the above object is a field unit that generates a magnetic field when a field current is supplied, and includes a housing provided with a hollow portion in the center, and a conductor coated with an insulating material wound thereon.
  • a terminal for supplying field current and includes a coil member coupled to the housing, wherein the housing is disposed on one side of the coil member, has a disk shape, and has a hollow portion in the center.
  • a through hole for forming the part is formed, is installed and seated on the inside of the coil member, and is provided with a support member for supporting the upper and lower plates, and the upper plate has two or more first cut grooves from the outer periphery to the inner periphery.
  • the lower plate is provided with two or more second cut grooves from the outer periphery to the inner periphery, and the first cut groove and the second cut groove are in communication with each other through a support member.
  • covers are provided on the outer surfaces of the upper and lower plates, respectively.
  • the cover has a disk shape and is made of a material that can be magnetized, and a through hole for forming a hollow portion is formed in the central portion.
  • an insulating film is attached to the outer surface of the cover.
  • the housing is characterized in that it is made of a material that can be magnetized.
  • the diameter of the outer periphery of the support member is set to a size corresponding to the diameter of the inner periphery of the coil member
  • the support member is provided with a third cut groove from the outer periphery to the inner periphery,
  • the first cut groove and the second cut groove are characterized in that they communicate with each other through the third cut groove.
  • the thickness of the support member is set to a size corresponding to the thickness of the coil member, and the upper and lower plates are disposed in close contact with the support member and the coil member.
  • At least one of the first and second cut grooves is characterized in that it is employed as a guide groove that guides the terminal of the coil member to the outside of the housing.
  • the conductive wire constituting the coil member is characterized in that the cross-section is square or has a longitudinal shape.
  • the upper or lower plate is characterized by being coated with an insulating material.
  • tubes for circulation of refrigerant are installed in the first and second cut grooves.
  • a field unit with a cooling function for realizing the above object is a field unit that generates a magnetic field when a field current is supplied, comprising a housing provided with a hollow portion in the center and coated with an insulating material. It is configured by winding a conductor, has a terminal for supplying field current, and includes a coil member coupled to the housing, wherein the housing is disposed on one side of the coil member, has a disk shape, and has a central An upper plate in which a through hole is formed to form a hollow portion, a lower plate disposed on the other side of the coil member and having a disk shape and a through hole in the central portion to form a hollow portion, and a ring in which the central portion is hollow.
  • a coil member is seated and installed on the inside, and a ring member supports the upper and lower plates, the upper plate is provided with two or more first cut grooves from the outer periphery to the inner periphery, and the lower plate is provided with two or more second cut grooves from the outer periphery to the inner periphery, and the first cut groove and the second cut groove communicate with each other on the inside of the housing.
  • covers are provided on the outer surfaces of the upper and lower plates, respectively, and the covers are disk-shaped and made of a magnetizable material, and a through hole for forming a hollow portion is formed in the central portion. .
  • an insulating film is attached to the outer surface of the cover.
  • the housing is characterized in that it is made of a material that can be magnetized.
  • the disk shape has a through hole formed in the central portion to form a hollow portion, is seated and installed on the inside of the coil member, and further includes a support member for supporting the upper and lower plates.
  • the diameter of the outer periphery of the support member is set to a size corresponding to the diameter of the inner periphery of the coil member, and the support member is provided with a third cut groove from the outer circumference to the inner circumference, and the first cut groove. and the second cut groove are characterized in that they communicate with each other through the third cut groove.
  • the height of the ring member is set to a size corresponding to the thickness of the coil member, and the upper and lower plates are arranged in close contact with the coil member and the ring member.
  • At least one of the first and second cut grooves is characterized in that it is employed as a guide groove that guides the terminal of the coil member to the outside of the housing.
  • the conductive wire constituting the coil member is characterized in that the cross-section is square or has a longitudinal shape.
  • the upper or lower plate is characterized by being coated with an insulating material.
  • tubes for circulation of refrigerant are installed in the first and second cut grooves.
  • a field unit with a cooling function for realizing the above object is a field unit that generates a magnetic field when a field current is supplied, comprising a housing having a hollow portion in the center, and a field unit provided inside the housing. It is composed of two or more coil members, each of which is composed of a conductor coated with an insulating material wound in a ring shape, and is provided with a terminal for supplying field current, and one coil member is connected to the other coil member.
  • the sizes are set to be different so that two or more coil members can be arranged two or more in the same space, and the housing has a hollow interior, a ring member in which two or more coil members are disposed, and a ring member of the ring member.
  • An upper plate disposed on one side and having a through hole for forming a hollow portion in the central portion, a lower plate disposed on the other side of the ring member and having a through hole for forming a hollow portion in the central portion, and a ring-shaped one. and a sub-ring member disposed between the coil member and the adjacent coil member, wherein the upper plate is provided with two or more first cut grooves from the outer periphery to the inner periphery, and the lower plate is provided with two or more first cut grooves from the outer periphery to the inner periphery. Two or more second cut grooves are provided, and the first cut groove and the second cut groove are characterized in that they communicate with each other inside the housing.
  • covers are provided on the outer surfaces of the upper and lower plates, respectively, the covers are made of a magnetizable material, and a through hole for forming a hollow portion is formed in the central portion.
  • an insulating film is attached to the outer surface of the cover.
  • the housing is characterized in that it is made of a material that can be magnetized.
  • a through hole for forming a hollow portion is formed in the central portion, and the coil member is characterized in that it further includes a support member supporting the inner peripheral surface of the coil member disposed innermost among the coil members.
  • the support member is provided with a third cut groove from the outer periphery to the inner periphery, and the first cut groove and the second cut groove communicate with each other through the third cut groove.
  • the height of the ring member and the sub-ring member or the thickness of the support member is set to a size corresponding to the thickness of the coil member, and the upper and lower plates are arranged in close contact with the coil member and the ring member.
  • At least one of the first and second cut grooves is characterized in that it is employed as a guide groove that guides the terminal of the coil member to the outside of the housing.
  • the conductive wire constituting the coil member is characterized in that the cross-section is square or has a longitudinal shape.
  • the upper or lower plate is characterized by being coated with an insulating material.
  • the inner peripheral surface of the ring member is characterized in that a first guide groove is provided for guiding the outer terminal of the coil member disposed inside in an upward or downward direction.
  • a second guide groove is provided on the inner or outer peripheral surface of the sub-ring member to guide the terminal of the coil member in an upward or downward direction.
  • tubes for circulation of refrigerant are installed in the first and second cut grooves.
  • a field unit with a cooling function is a field unit that generates a magnetic field when a field current is supplied, comprising a ring member having a ring shape, a top plate disposed on one side of the ring member, and the ring member.
  • a lower plate disposed on the other side, which has a ring shape, and includes two or more coil members sequentially stored inside the ring member, and a sub-ring member which has a ring shape and is disposed between the coil members.
  • the upper plate is provided with two or more first cut grooves from the outer periphery to the inner periphery, and the lower plate is characterized in that it is provided with two or more second cut grooves from the outer periphery to the inner periphery.
  • a field unit with a cooling function for realizing the above object is a field unit that generates a magnetic field when a field current is supplied, comprising a housing provided with a hollow portion in the center and coated with an insulating material.
  • a ring in which a conductor is wound and has a terminal for supplying field current and includes a coil member coupled to the housing, wherein the housing has a hollow ring shape and the coil member is seated on the inside.
  • It has a lower plate in which a through hole for forming a hollow part is formed, the upper plate is provided with two or more first flow grooves from the outer periphery to the inner periphery, and the lower plate has two or more second flow grooves from the outer periphery to the inner periphery.
  • a groove is provided, and the first flow groove and the second flow groove communicate with each other inside the housing.
  • the sides opposite to the coil members of the upper and lower plates are characterized in that step portions are provided along the outer periphery.
  • the upper and lower plates are characterized in that they are press-fitted into the ring member.
  • the inner peripheral surface of the ring member is characterized in that a stepped portion for supporting the stepped portion is provided.
  • an insulating film is attached to the outer surface of the upper or lower plate.
  • the housing is characterized in that it is made of a material that can be magnetized.
  • the field unit with the cooling function has a disk shape, has a through hole formed in the center to form a hollow portion, is seated and installed on the inside of the coil member, and includes a support member for supporting the upper and lower plates. It is characterized in that it is additionally included.
  • the diameter of the outer periphery of the support member is set to a size corresponding to the diameter of the inner periphery of the coil member, and the support member is provided with a cut groove from the outer periphery to the inner periphery, and the first flow groove and the second flow groove. 2
  • the flow grooves are characterized in that they communicate with each other through the cut grooves.
  • the height of the ring member is set to a size corresponding to the thickness of the coil member, and the upper and lower plates are arranged in close contact with the coil member and the ring member.
  • At least one of the first and second cut grooves is characterized in that it is employed as a guide groove that guides the terminal of the coil member to the outside of the housing.
  • the conductive wire constituting the coil member is characterized in that the cross-section is square or has a longitudinal shape.
  • the inner peripheral surface of the ring member is characterized in that a guide groove is provided for guiding the outer terminal of the coil member in an upward or downward direction.
  • tubes for circulation of refrigerant are installed in the first and second flow grooves.
  • Figure 2 is a perspective view showing the field unit 1 with a cooling function according to an embodiment of the present invention
  • Figure 3 is an exploded perspective view of the field unit 1 shown in Figure 2.
  • the field unit 1 includes a housing 10 and a coil member 20 coupled to the housing 10.
  • the housing 10 includes an upper plate 11, a lower plate 12, and a support member 13.
  • the upper plate 11 is disposed on one side of the coil member 20, on the upper side of the coil member 20 in the drawing.
  • the lower plate 12 is disposed on the other side of the coil member 20, below the coil member 20 in the drawing.
  • the support member 13 is seated on the inside of the coil member 20 to support the inner peripheral surface of the coil member 20 and also supports the upper plate 11 and the lower plate 12 in the up and down directions.
  • a hollow portion 10a is provided in the central portion of the housing 10. Although not specifically shown in the drawing, a cylindrical core member is inserted into the hollow portion 10a.
  • the field unit 1 is installed and coupled to the core member together with the armature unit.
  • the coupling structure of the field unit and the armature unit to the core member is disclosed in Korean Patent No. 10-2332747 (name: Non-rotating direct current generator).
  • the upper plate 11 and the lower plate 12 are provided with a plurality of cut grooves 111 and 121, respectively, from the outer periphery toward the inside. These cut grooves 111 and 121 communicate with each other through the support member 13 inside the housing 10.
  • the cut grooves 111 and 121 are for circulation of refrigerant containing air. That is, the cut grooves 111 and 121 constitute a duct for the refrigerant.
  • at least one of the plurality of cut grooves 111 and 121 functions as a guide groove for drawing the terminals 21a and 21b of the coil member 20 to the outside of the housing 10.
  • the field unit 1 includes a housing 10 and a coil member 20, and the housing 10 includes an upper plate 11 and a lower plate 12, a support member 13, and covers 14 and 15. ) is provided.
  • the coil member 20 is composed of a coiled wire coated with an insulating material such as enamel.
  • the outside of the coil member 20 may be coated with an insulating film while completely surrounding the coil member 20 for more reliable insulation between the coil member 20 and the housing 10.
  • the coil member 20 is provided with terminals 21a and 21b for supplying field current, and these are drawn out to the outside of the housing 10.
  • the coil member 20 is composed of a conductor having a square or rectangular cross-section. A conductor with a square or rectangular cross-section has a larger surface area than a circular conductor with a diameter equal to its width, so it can provide the effect of reducing heat generation due to an increase in the skin effect.
  • the top plate 11 has a disk shape, and a through hole 112 for forming the hollow portion 10a is formed in the central portion.
  • the top plate 11 is made of a material that can be magnetized. In a preferred embodiment of the present invention, pure iron is used as a material for the top plate 11 and is appropriately heat treated.
  • the heat treatment for the top plate 11 is to appropriately set the coercive force of the top plate 11.
  • the upper plate 11 is provided with a plurality of cut grooves 111 from the outer periphery to the inner periphery. The size and number of cutting grooves 111 are not specified. However, the length of the cutting groove 111 is set to be larger than the width of the coil member 20.
  • the lower plate 12 preferably has substantially the same structure as the upper plate 11 described above.
  • the lower plate 12 has a disk shape and is made of a material that can be magnetized, and is provided with a through hole 122 and a plurality of cut grooves 121.
  • the size and location of the through hole 122 are substantially the same as those of the upper plate 11.
  • the cut groove 121 is set to have the same size and position as the cut groove 111 of the upper plate 11.
  • the sizes of the cut groove 111 and the cut groove 121 may be set to be different from each other.
  • the upper plate 11 and the lower plate 12 are coated with an insulating material such as Teflon. This is for more reliable insulation between the upper plate 11 and lower plate 12 and the coil member 20.
  • the support member 13 has a disk shape, and a through hole 132 for forming the hollow portion 10a is formed in the central portion.
  • the support member 13, like the upper plate 11 and the lower plate 12, is made of a material that can be magnetized, and is preferably made of heat-treated pure iron.
  • the diameter of the outer periphery of the support member 13 is set to a size corresponding to the diameter of the inner periphery of the coil member 20.
  • the support member 13 is disposed while being seated in the central portion of the coil member 20, and the outer peripheral surface of the support member 13 supports the inner peripheral surface of the coil member 20.
  • the thickness of the support member 13 is set to a size corresponding to the thickness of the coil member 20. Accordingly, the support member 13 and the coil member 20 are installed while being in close contact with the upper plate 11 and the lower plate 12 as a whole.
  • the support member 13 is provided with a plurality of cut grooves 131 from the outer periphery to the inner periphery.
  • Figure 4 is a plan view showing the support member 13 disposed on the upper side of the lower plate 12.
  • the cut groove 131 of the support member 13 is provided at a position corresponding to the cut grooves 111 and 121 provided in the upper plate 11 and the lower plate 12. Accordingly, the cut grooves 111 and 121 communicate with each other through the cut groove 131 of the support member 13.
  • the width of the cut groove 131 is preferably set to be equal or greater than the width of the cut grooves 111 and 121.
  • Covers 14 and 15 are installed on the outer surfaces of the upper plate 11 and the lower plate 12, respectively, on the upper side of the upper plate 1 and the lower side of the lower plate 12 in the drawing.
  • the covers 14 and 15 have a disk shape, and through holes 141 and 151 are formed in the central portion to form the hollow portion 10a.
  • the covers 14 and 15, like the upper plate 11 and the lower plate 12, are made of a material that can be magnetized, and are preferably made of heat-treated pure iron.
  • the covers 14 and 15 together with the upper plate 11 and the lower plate 12 form a duct for the refrigerant and provide a path for a smoother flow of the magnetic field generated by the coil member 20.
  • an insulating film 14a such as Teflon, is attached to the outer surfaces of the covers 14 and 15, if necessary.
  • the insulating film 14a is for insulating the main field unit 1 from the armature unit or other field units disposed adjacent to it.
  • FIG. 5 is a cross-sectional view showing the cross-sectional configuration along line A-A' in FIG. 2.
  • the support member 13 is disposed in close contact with the inner surface of the coil member 20, and the upper and lower plates 11 and 12 are disposed in close contact with the upper and lower sides of the coil member 20, respectively.
  • a cover 14 is disposed on the upper side of the upper plate 11 in close contact with the upper plate 11, and a cover 15 is disposed on the lower side of the lower plate 12 in close contact with the lower plate 12.
  • the upper plate 11, lower plate 12, support member 13, and covers 14 and 15 constitute the housing 10. Accordingly, the coil member 20 is mounted in close contact with the housing 10.
  • all components constituting the housing 10 are made of a material that can be magnetized, more preferably a material with high magnetic permeability such as pure iron, and serve as a magnet for projecting the magnetic field generated in the coil member 20.
  • a material that can be magnetized more preferably a material with high magnetic permeability such as pure iron, and serve as a magnet for projecting the magnetic field generated in the coil member 20.
  • the magnetic field generated by the coil member 20 can be efficiently provided to other adjacent devices, such as an armature unit.
  • the cut groove 111 of the upper plate 11, the cut groove 131 of the support member 13, and the cut groove 121 of the lower plate 12 communicate with each other.
  • These communication structures constitute a passage for refrigerant circulation, that is, a duct for refrigerant, for the circulation of refrigerant such as air.
  • the duct for the refrigerant is formed while passing through the upper surface, inner peripheral surface, and lower surface of the coil member 20. That is, the refrigerant duct is configured to allow the refrigerant to flow while entirely surrounding the outer surface of the coil member 20.
  • the communication structure consisting of the cut groove 111 of the upper plate 11, the cut groove 131 of the support member 13, and the cut groove 121 of the lower plate 12 contains the refrigerant. Tubes for circulation may be installed.
  • the shape and structure of the support member 13 are not specified.
  • any structure that can stably support the coil member 20, the upper plate 11, and the lower plate 12 and allow communication between the incision grooves 111 and 121 can be preferably employed. .
  • Figure 6 is a perspective view showing the field unit 1 with a cooling function according to an embodiment of the present invention
  • Figure 7 is an exploded perspective view of the field unit 1 shown in Figure 6.
  • the field unit 1 includes a housing 10 and a coil member 20 coupled to the housing 10.
  • the housing 10 includes an upper plate 11 and a lower plate 12, as well as a ring member 14 that constitutes the body of the housing 10.
  • a coil member 20 is stored inside the ring member 14.
  • the upper plate 11 is disposed on one side of the ring member 14, on the upper side of the ring member 14 in the drawing.
  • the lower plate 12 is disposed on the other side of the ring member 14, on the lower side of the ring member 14 in the drawing.
  • the ring member 14, the upper plate 11, and the lower plate 12 accommodate the coil member 20 and form a magnetic path for the coil member 20.
  • a hollow portion 10a is provided in the central portion of the housing 10. Although not specifically shown in the drawing, a cylindrical core member is inserted into the hollow portion 10a.
  • the field unit 1 is installed and coupled to the core member together with the armature unit.
  • the coupling structure of the field unit and the armature unit to the core member is disclosed in Korean Patent No. 10-2332747 (name: Non-rotating direct current generator).
  • the upper plate 11 and the lower plate 12 are provided with a plurality of cut grooves 111 and 121, respectively, from the outer periphery toward the inside.
  • the cut grooves 111 and 121 pass through the upper and lower surfaces of the coil member 20, respectively, and then communicate with each other inside the housing 10.
  • the cut grooves 111 and 121 are for circulation of refrigerant containing air. That is, the cut grooves 111 and 121 constitute a duct for the refrigerant.
  • at least one of the plurality of cut grooves 111 and 121 functions as a guide groove for drawing the terminals 21a and 21b of the coil member 20 to the outside of the housing 10.
  • the field unit 1 includes a housing 10 and a coil member 20, and the housing 10 includes an upper plate 11, a lower plate 12, and a ring member 14. do.
  • the coil member 20 generates a magnetic field by a field current supplied from the outside, and the housing 10 stably supports and houses the coil member 20 and provides a magnetic field for the magnetic field generated by the coil member 20. It is composed.
  • the housing 10 is provided with a support member 13 and covers 15, 16.
  • the support member 13 and the covers 15 and 16 are intended to minimize magnetic flux loss due to the space by eliminating the space between the coil member 14 and the housing and in the housing itself.
  • the support member 13 and covers 15 and 16 can be removed as needed.
  • the coil member 20 is composed of a coiled wire coated with an insulating material such as enamel.
  • the outside of the coil member 20 may be coated with an insulating film that entirely surrounds the coil member 20 for more reliable insulation between the coil member 20 and the housing 10.
  • the coil member 20 is provided with terminals 21a and 21b for supplying field current, and these are drawn out to the outside of the housing 10.
  • the coil member 20 is composed of a conductor having a square or rectangular cross-section.
  • a conductor with a square or rectangular cross-section has a larger surface area than a circular conductor with a diameter equal to its width, so it can provide the effect of reducing heat generation due to an increase in the skin effect.
  • the top plate 11 has a disk shape, and a through hole 112 for forming the hollow portion 10a is formed in the central portion.
  • the top plate 11 is made of a material that can be magnetized. In a preferred embodiment of the present invention, pure iron is used as a material for the top plate 11, and is appropriately heat treated. The heat treatment for the top plate 11 is to appropriately set the coercive force of the top plate 11.
  • the upper plate 11 is provided with a plurality of cut grooves 111 from the outer periphery to the inner periphery. The size and number of incision grooves 111 are not specified. However, the length of the cutting groove 111 is set to be larger than the width of the coil member 20.
  • the lower plate 12 preferably has substantially the same configuration as the upper plate 11 described above.
  • the lower plate 12 has a disk shape and is made of a material that can be magnetized, and is provided with a through hole 122 and a plurality of cut grooves 121.
  • the size and location of the through hole 122 are substantially the same as those of the upper plate 11.
  • the cut groove 121 is shown to have the same shape and position as the cut groove 111 of the upper plate 11, but the shapes and positions of the cut groove 111 and the cut groove 121 are set differently. It can be.
  • the upper plate 11 and the lower plate 12 are coated with an insulating material such as Teflon. This is to more reliably insulate the upper plate 11 and the lower plate 12 from the components between them, that is, the coil member 20, the support member 13, and the ring member 144.
  • the support member 13 has a disk shape, and a through hole 132 for forming the hollow portion 10a is formed in the central portion.
  • the diameter of the outer periphery of the support member 13 is set to a size corresponding to the diameter of the inner periphery of the coil member 20.
  • the support member 13 is disposed while being seated in the central portion of the coil member 20, and the outer periphery of the support member 13 supports the inner periphery of the coil member 20. Additionally, the thickness of the support member 13 is set to a size corresponding to the thickness of the coil member 20.
  • the support member 13 is provided with a plurality of cut grooves 131 from the outer periphery to the inner periphery.
  • Figure 8 is a plan view showing the support member 13 disposed on the upper side of the lower plate 12.
  • the cut groove 131 of the support member 13 is provided at a position corresponding to the cut grooves 111 and 121 provided in the upper plate 11 and the lower plate 12. Accordingly, the cut grooves 111 and 121 communicate with each other through the cut groove 131 of the support member 13.
  • the width of the cut groove 131 is preferably set to be equal or greater than the width of the cut grooves 111 and 121.
  • the ring member 14 has a ring shape with a hollow interior.
  • the diameter of the inner periphery of the ring member 14 is set to a size corresponding to the diameter of the outer periphery of the coil member 20.
  • the coil member 20 is disposed while being seated inside the ring member 14, and the inner periphery of the ring member 14 supports the outer periphery of the coil member 20.
  • the diameter of the outer periphery of the ring member 14 is preferably set to a size equal to the diameter of the upper plate 11 and the lower plate 12, and the height of the ring member 14 is set to correspond to the thickness of the coil member 20. It is set to size. Accordingly, the coil member 20 and the ring member 14 are installed while being in close contact with the upper plate 11 and the lower plate 12 along with the support member 13.
  • Covers 15 and 16 are installed on the outer surfaces of the upper plate 11 and the lower plate 12, respectively, on the upper side of the upper plate 1 and the lower side of the lower plate 12 in the drawing.
  • the covers 15 and 16 have a disk shape, and through holes 151 and 161 are formed in the central portion to form the hollow portion 10a.
  • the covers 15 and 16, like the upper plate 11 and the lower plate 12, are made of a material that can be magnetized, and are preferably made of heat-treated pure iron.
  • the covers 15 and 16 together with the upper plate 11 and lower plate 12 form a duct for the refrigerant and provide a path for smoother flow of the magnetic field generated by the coil member 20.
  • an insulating film 15a such as Teflon, is attached to the outer surfaces of the covers 15 and 16, if necessary.
  • the insulating film 15a is for insulating the main field unit 1 from the armature unit or other field units disposed adjacent to it.
  • FIG. 9 is a cross-sectional view showing the cross-sectional configuration along line A-A' in FIG. 6.
  • the support member 13 is arranged in close contact with the inner surface of the coil member 20, and the ring member 13 is arranged in close contact with the outer surface of the coil member 20.
  • an upper plate 11 and a lower plate 12 are disposed on the upper and lower sides of the coil member 20, respectively, in close contact with each other.
  • the cover 15 is placed on the upper side of the upper plate 11 in close contact with the upper plate 11, and the cover 16 is placed on the lower side of the lower plate 12 in close contact with the lower plate 12.
  • the upper plate 11 and the lower plate 12, the support member 13, the ring member 14, and the covers 15 and 16 constitute the housing 10.
  • the coil member 20 is mounted in close contact with the housing 10.
  • all components constituting the housing 10 are made of a material that can be magnetized, more preferably a material with high magnetic permeability such as pure iron, and serve as a magnet for projecting the magnetic field generated in the coil member 20. will be provided. Accordingly, the magnetic field generated by the coil member 20 can be efficiently provided to other adjacent devices, such as an armature unit.
  • the cut groove 111 of the upper plate 11, the cut groove 131 of the support member 13, and the cut groove 121 of the lower plate 12 communicate with each other.
  • These communication structures constitute a passage for refrigerant circulation, that is, a duct for refrigerant, for the circulation of refrigerant such as air.
  • the duct for the refrigerant is formed while passing through the upper surface, inner peripheral surface, and lower surface of the coil member 20. That is, the refrigerant duct is configured to allow the refrigerant to flow while entirely surrounding the outer surface of the coil member 20.
  • the communication structure consisting of the cut groove 111 of the upper plate 11, the cut groove 131 of the support member 13, and the cut groove 121 of the lower plate 12 contains the refrigerant. Tubes for circulation may be installed.
  • the shape and structure of the support member 13 are not specified.
  • any structure that can stably support the coil member 20, the upper plate 11, and the lower plate 12 and allow communication between the incision grooves 111 and 121 can be preferably employed. .
  • Figure 10 is a perspective view showing the field unit 1 with a cooling function according to an embodiment of the present invention
  • Figure 11 is an exploded perspective view of the field unit 1 shown in Figure 10.
  • the field unit 1 includes a housing 10 and a plurality of coil members 20 and 30 coupled to the housing 10.
  • the field unit 1 is provided with two coil members 20 and 30.
  • the housing 10 includes an upper plate 11 and a lower plate 12, as well as a ring member 13 that constitutes the body of the housing 10.
  • the upper plate 11 is disposed on one side of the ring member 13, on the upper side of the ring member 13 in the drawing.
  • the lower plate 12 is disposed on the other side of the ring member 13, on the lower side of the ring member 13 in the drawing.
  • a plurality of coil members 20 and 30 are sequentially stored inside the ring member 13.
  • a sub-ring member 14 is preferably provided between the coil members 20 and 30.
  • the sub-ring member 14 constitutes a magnetic path for the upper plate 11 and the lower plate 12, as well as the coil members 20 and 30 disposed adjacently.
  • a hollow portion 10a is provided in the central portion of the housing 10. Although not specifically shown in the drawing, a cylindrical core member is inserted into the hollow portion 10a.
  • the field unit 1 is installed and coupled to the core member together with the armature unit.
  • the coupling structure of the field unit and the armature unit to the core member is disclosed in Korean Patent No. 10-2332747 (name: Non-rotating direct current generator).
  • the upper plate 11 and the lower plate 12 are provided with a plurality of cut grooves 111 and 121, respectively, from the outer periphery toward the inside.
  • the cut grooves 111 and 121 pass through the upper and lower surfaces of the coil members 20 and 30, respectively, and then communicate with each other inside the housing 10.
  • the cut grooves 111 and 121 are for circulation of refrigerant containing air. That is, the cut grooves 111 and 121 constitute a duct for the refrigerant.
  • some of the cut grooves 111 and 121 function as guide grooves for drawing the terminals 20a and 20b (30a and 30b) of the coil members 20 and 30 to the outside of the housing 10.
  • the housing 10 is provided with a plurality, in this example first and second coil members 20, 30.
  • the coil members 20 and 30 each consist of a coiled wire coated with an insulating material such as enamel. More specifically, the first and second coil members 20 and 30 are configured to have a hollow portion formed in the central portion and the coil is wound in a circular shape to have an overall ring shape. And the size of the hollow part of the first coil member 20 is set to a size that allows the second coil member 30 to be placed inside it, so that the second coil member 30 is located in the space of the first coil member 20. It is placed flatly inside. In addition, preferably, the outside of each coil member 20, 30 may be coated with an insulating film while completely surrounding the coil member 20, 30 for more reliable insulation between the coil member 20 and the housing 10. .
  • the first coil member 20 and the second coil member 30 are configured to generate magnetic fluxes of the same magnitude.
  • the size of the magnetic flux generated in the coil members 20 and 30 is determined by the length of each conductor. Accordingly, the cross-sectional area of the second coil member 30 is set to be larger than the cross-sectional area of the first coil member 20.
  • the coil members 20 and 30 are provided with terminals 20a and 20b (30a and 30b) for supplying field current, respectively.
  • one terminal (20a, 30a) is connected to the outer peripheral side of the coil members (20, 30)
  • the other terminal (20b, 30b) is connected to the inner peripheral side of the coil members (20, 30).
  • these terminals (20a, 20b) (30a, 30b) are drawn out to the outside of the housing (10) through the cut grooves (111, 121) of the upper plate (11) and the lower plate (12).
  • the terminals 20a and 30a connected to the outer peripheral side of the coil members 20 and 30 are referred to as outer terminals, and the terminals 20b and 30b connected to the inner peripheral side of the coil members 20 and 30 are referred to as inner terminals.
  • outer terminals the terminals 20a and 30a connected to the outer peripheral side of the coil members 20 and 30
  • inner terminals the terminals 20b and 30b connected to the inner peripheral side of the coil members 20 and 30
  • the coil members 20 and 30 are composed of conductors having a square or rectangular cross-section.
  • a conductor with a square or rectangular cross-section has a larger surface area than a circular conductor with a diameter equal to its width, so it can provide the effect of reducing heat generation due to an increase in the skin effect.
  • the top plate 11 has a disk shape, and a through hole 112 for forming the hollow portion 10a is formed in the central portion.
  • the top plate 11 is made of a material that can be magnetized. In a preferred embodiment of the present invention, pure iron is used as a material for the top plate 11 and is appropriately heat treated.
  • the heat treatment for the upper plate 11 is to appropriately set the coercive force or demagnetization time of the upper plate 11.
  • the upper plate 11 is provided with a plurality of cut grooves 111 from the outer periphery to the inner periphery.
  • the cutting grooves 111 are arranged radially on the upper plate 11. The size, shape, or number of the incision grooves 111 are not specified. However, the cut groove 111 is formed to be guided toward the support member 40 after passing through the upper surfaces of the coil members 20 and 30 accommodated inside the ring member 13.
  • the lower plate 12 like the upper plate 11, has a disk shape and is made of a material that can be magnetized, and is provided with a through hole 122 and a plurality of cut grooves 121. And the incision grooves 121 are arranged radially on the lower plate 12.
  • the lower plate 12 has the same configuration as the upper plate 11, and the cut groove 121 of the lower plate 12 is disposed at a position corresponding to the cut groove 111 of the upper plate 11. .
  • the upper plate 11 and the lower plate 12 may have different configurations.
  • the cut groove 111 of the upper plate 11 and the cut groove 121 of the lower plate 12 may have different shapes and positions.
  • the upper plate 11 and the lower plate 12 are coated with an insulating material such as Teflon. This is to more reliably insulate the upper plate 11 and the lower plate 12 from the components between them, that is, the coil members 20 and 30, the support member 40, the sub-ring member 14, and the ring member 14. will be.
  • the support member 40 has a disk shape, and a through hole 41 for forming the hollow portion 10a is formed in the central portion.
  • the support member 40 like the upper plate 11 and the lower plate 12, is made of a material that can be magnetized, and is preferably made of heat-treated pure iron.
  • the diameter of the outer periphery of the support member 40 is set to a size corresponding to the diameter of the inner periphery of the innermost coil member 30.
  • the support member 40 is disposed while being seated in the central portion of the coil member 30, and the outer periphery of the support member 40 supports the inner periphery of the coil member 30. Additionally, the thickness of the support member 40 is set to a size corresponding to the thickness of the coil members 20 and 30.
  • the support member 40 is provided with a plurality of cut grooves 42 from the outer periphery to the inner periphery.
  • FIG. 12 is a plan view showing the support member 40, ring member 13, and sub-ring member 14 disposed on the upper side of the lower plate 12.
  • the cut groove 42 of the support member 40 is provided at a position corresponding to the cut grooves 111 and 121 provided in the upper plate 11 and the lower plate 12. Accordingly, the cut grooves 111 and 121 communicate with each other through the cut groove 42 of the support member 40.
  • the width of the cut groove 42 is preferably set to a size equal to or greater than the width of the cut grooves 111 and 121.
  • the inner terminal 30b of the coil member 30 is guided upward or downward through the cut groove 42 and then inserted into the housing 10 through the cut grooves 111 and 121. ) is guided to the outside of the
  • the sub-ring member 14 has a ring shape with a hollow interior.
  • the diameter of the inner periphery of the sub-ring member 14 is set to a size corresponding to the diameter of the outer periphery of the coil member located inside it, in this embodiment, the second coil member 30.
  • the diameter of the outer periphery of the sub-ring member 14 is set to a size corresponding to the diameter of the inner periphery of the coil member located outside the sub-ring member 14, in this embodiment, the first coil member 20.
  • the sub-ring member 14 supports the outer peripheral surface of the second coil member 30 and also supports the inner peripheral surface of the first coil member 20.
  • the number of sub-ring members 14 is appropriately set to correspond to the number of coil members provided in the housing 10.
  • guide grooves 141 and 142 are preferably provided on the inner and outer peripheral surfaces of the sub-ring member 14, respectively.
  • the guide groove 141 is for guiding the outer terminal 30a of the coil member 30 disposed inside the sub-ring member 14 in an upward or downward direction
  • the guide groove 142 is a sub-ring member ( This is to guide the inner terminal 20b of the coil member 20 disposed on the outside of 14) in the upward or downward direction.
  • the guide grooves 141 and 142 are disposed at positions corresponding to the cut grooves 111 and 121 provided in the upper plate 11 and the lower plate 12.
  • the outer terminal 30a of the second coil member 30 and the inner terminal 20b of the first coil member 20 are guided upward or downward through the guide grooves 141 and 142, and then through the incision groove. It is guided to the outside of the housing 10 through (111, 121).
  • the guide grooves 141 and 142 may be selectively employed depending on the thickness of the conductors constituting the coil members 20 and 30. That is, the guide grooves 141 and 142 can be removed when the thickness of the conductors constituting the coil members 20 and 30 is below a certain level. And, the height of the sub-ring member 14 is set to a size corresponding to the thickness of the coil members 20 and 30.
  • the ring member 13 has a ring shape with a hollow interior.
  • the ring member 13, like the upper plate 11 and the lower plate 12, is made of a material that can be magnetized, and is preferably made of heat-treated pure iron.
  • the diameter of the inner periphery of the ring member 13 is set to a size corresponding to the diameter of the outer periphery of the coil member 20.
  • the coil member 20 is disposed while being seated inside the ring member 13, and the inner periphery of the ring member 13 supports the outer periphery of the coil member 20.
  • a guide groove 131 is provided on the inner peripheral surface of the ring member 13 to guide the outer terminal 20a of the coil member 20 disposed inside the ring member 13 in an upward or downward direction.
  • the guide groove 131 is disposed at a position corresponding to the cut grooves 111 and 121 provided in the upper plate 11 and the lower plate 12. Accordingly, the outer terminal 20a of the first coil member 20 is guided upward or downward through the guide groove 131 and then guided to the outside of the housing 10 through the cut grooves 111 and 121. .
  • the guide groove 131 can be removed when the thickness of the conductive wire constituting the coil member 20 disposed on the inner peripheral surface is below a certain level.
  • the diameter of the outer periphery of the ring member 13 is preferably set to a size equal to the diameter of the upper plate 11 and the lower plate 12, and the height of the ring member 13 is equal to the thickness of the coil members 20 and 30. It is set to the corresponding size. Accordingly, the coil members 20 and 30, the ring member 13, the sub-ring member 14, and the support member 40 are installed while being in close contact with the upper plate 11 and the lower plate 12 as a whole.
  • Covers 50 and 60 are installed on the outer surfaces of the upper plate 11 and the lower plate 12, respectively, on the upper side of the upper plate 11 and the lower side of the lower plate 12 in the drawing.
  • the covers 50 and 60 have a disk shape, and through holes 51 and 61 are formed in the central portion to form the hollow portion 10a.
  • the covers 50 and 60 like the upper plate 11 and the lower plate 12, are made of a material that can be magnetized, and are preferably made of heat-treated pure iron.
  • the covers 50 and 60 together with the upper plate 11 and lower plate 12 form a duct for the refrigerant and provide a path for a smoother flow of the magnetic field generated by the coil members 20 and 30. .
  • an insulating film 50a such as Teflon, is attached to the outer surface of the covers 50 and 60, if necessary.
  • the insulating film 50a is for insulating the main field unit 1 from the armature unit or other field units disposed adjacent to it.
  • FIG. 13 is a cross-sectional view showing the cross-sectional configuration along line A-A' in FIG. 10.
  • the first coil member 20 is disposed between the ring member 13 and the sub-ring member 14, and supports the sub-ring member 14.
  • a second coil member 30 is disposed between the members 40.
  • the inner diameter of the ring member 13 and the outer diameter of the sub-ring member 14 are set to sizes corresponding to the outer diameter and inner diameter of the first coil member 20, respectively, and the inner diameter of the sub-ring member 14
  • the inner diameter and the outer diameter of the support member 40 are set to sizes corresponding to the outer diameter and inner diameter of the second coil member 30, respectively.
  • the support member 40, the second coil member 40, the sub-ring member 14, the first coil member 30, and the ring member 13 are arranged while being in close contact with each other. That is, the separation space between these configurations is limited to a minimum.
  • the upper and lower sides of the above components, that is, the support member 40, the second coil member 40, the sub-ring member 14, the first coil member 30, and the ring member 13, respectively, have an upper plate 11 ) and the lower plate 12 are placed in close contact.
  • the cover 50 is disposed on the upper side of the upper plate 11 in close contact with the upper plate 11, and the cover 60 is disposed on the lower side of the lower plate 12 in close contact with the lower plate 12.
  • the upper plate 11 and the lower plate 12, the support member 40, the sub-ring member 14, the ring member 13, and the covers 15 and 16 constitute the housing 10. Accordingly, the plurality of coil members 20 and 30 disposed inside the housing 10 are all mounted in close contact with the housing 10. As described above, all components constituting the housing 10 are made of a material that can be magnetized, more preferably a material with high magnetic permeability such as pure iron, to prevent the projection of the magnetic field generated in the coil members 20 and 30. A ruler will be provided for this purpose.
  • each magnetic field generated by the coil members 20 and 30 can be efficiently provided to other adjacent devices, such as an armature unit.
  • the cut groove 111 of the upper plate 11, the cut groove 42 of the support member 40, and the cut groove 121 of the lower plate 12 communicate with each other.
  • These communication structures constitute a passage for refrigerant circulation, that is, a duct for refrigerant, for the circulation of refrigerant such as air.
  • the duct for the refrigerant is formed while passing through the upper surface, inner peripheral surface, and lower surface of the coil members 20 and 30. That is, the refrigerant duct is configured to allow the refrigerant to flow while entirely surrounding the outer surfaces of the coil members 20 and 30.
  • the first and second coil members 20 and 30 may be driven alternately or simultaneously. Additionally, the first and second coil members 20 and 30 may be selectively driven.
  • the communication structure consisting of the cut groove 111 of the upper plate 11, the cut groove 42 of the support member 40, and the cut groove 121 of the lower plate 12 contains the refrigerant. Tubes for circulation may be installed.
  • the shape and structure of the support member 40 are not specified.
  • any structure that can stably support the coil member 30, the upper plate 11, and the lower plate 12 and allow communication between the incision grooves 111 and 121 can be preferably employed. .
  • the field unit 1 is configured so that the housing 10 has an overall cylindrical shape.
  • the shape of the housing 10 is not specified.
  • the housing 10 may be configured to have an oval or polygonal planar shape.
  • Figure 14 is a perspective view showing the field unit 1 with a cooling function according to an embodiment of the present invention
  • Figure 15 is an exploded perspective view of the field unit 1 shown in Figure 14.
  • the field unit 1 includes a housing 10 and a coil member 20 coupled to the housing 10.
  • the housing 10 includes a ring member 11, an upper plate 12, and a lower plate 13.
  • the ring member 11 constitutes the body of the housing 10.
  • a coil member 20 is stored inside the ring member 14.
  • the upper plate 12 is disposed on one side of the ring member 11, on the upper side of the ring member 11 in the drawing.
  • the lower plate 13 is disposed on the other side of the ring member 11, on the lower side of the ring member 11 in the drawing.
  • the ring member 11, the upper plate 12, and the lower plate 13 accommodate the coil member 20 and form a magnetic path for the coil member 20.
  • a hollow portion 10a is provided in the central portion of the housing 10. Although not specifically shown in the drawing, a cylindrical core member is inserted into the hollow portion 10a.
  • the field unit 1 is installed and coupled to the core member together with the armature unit.
  • the coupling structure of the field unit and the armature unit to the core member is disclosed in Korean Patent No. 10-2332747 (name: Non-rotating direct current generator).
  • the upper plate 12 and the lower plate 13 are provided with a plurality of flow grooves 122 and 132, respectively, from the outer periphery to the inner direction.
  • the flow grooves 122 and 132 pass through the upper and lower surfaces of the coil member 20, respectively, and then communicate with each other inside the housing 10.
  • the flow grooves 122 and 132 are for the flow of refrigerant containing air. That is, the flow grooves 122 and 132 constitute ducts for refrigerant.
  • at least one of the plurality of flow grooves 122 and 132 functions as a guide groove for leading the terminals 20a and 20b of the coil member 20 to the outside of the housing 10.
  • the field unit 1 includes a housing 10 and a coil member 20, and the housing 10 includes an upper plate 12, a lower plate 13, and a ring member 14. do.
  • the coil member 20 generates a magnetic field by a field current supplied from the outside, and the housing 10 stably supports and houses the coil member 20 and provides a magnetic field for the magnetic field generated by the coil member 20. It is composed.
  • the housing 10 is provided with a support member 14 .
  • the support member 14 is intended to minimize magnetic flux loss due to the space by eliminating the space between the coil member 20 and the housing. Support member 14 can be removed as needed.
  • the coil member 20 is composed of a coiled wire coated with an insulating material such as enamel.
  • the outside of the coil member 20 may be coated with an insulating film that entirely surrounds the coil member 20 for more reliable insulation between the coil member 20 and the housing 10.
  • the coil member 20 is provided with terminals 20a and 20b for supplying field current.
  • one terminal 20a is connected to the outer peripheral side of the coil member 20, and the other terminal 20b is connected to the inner peripheral side of the coil member 20.
  • these terminals 20a and 20b are drawn out to the outside of the housing 10 through the cut grooves 122 and 132 of the upper plate 12 and the lower plate 13.
  • the terminal 20a connected to the outer peripheral side of the coil member 20 will be referred to as an outer terminal
  • the terminal 20b connected to the inner peripheral side of the coil member 20 will be referred to as an inner terminal.
  • the coil member 20 is composed of a conductor having a square or rectangular cross-section.
  • a conductor with a square or rectangular cross-section has a larger surface area than a circular conductor with a diameter equal to its width, so it can provide the effect of reducing heat generation due to an increase in the skin effect.
  • the upper plate 12 and the lower plate 13 have substantially the same configuration.
  • the lower plate 13 has a disk shape, and a through hole 131 for forming the hollow portion 10a is formed in the central portion.
  • the lower plate 13 is made of a material that can be magnetized. In a preferred embodiment of the present invention, pure iron is used as the material of the lower plate 13 and is appropriately heat treated. The heat treatment of the lower plate 13 is to appropriately set the coercive force or demagnetization time of the lower plate 13.
  • a step portion 133 is provided along the outer periphery of the lower plate 13.
  • the outer diameter of the lower plate 13 is set to a size equivalent to the outer diameter of the ring member 11, and the outer diameter of the step portion 133 is set to a size corresponding to the inner diameter of the ring member 11.
  • the step portion 133 is for more stably coupling the lower plate 13 to the ring member 11.
  • the outer diameter of the step portion 133 is set to a size that can be press-fitted into the inner peripheral surface of the ring member 11.
  • the step portion 133 is not essential. This can be removed as needed.
  • a plurality of flow grooves 132 are provided on one side of the lower plate 13, that is, on the side opposite to the coil member 20, from the outer periphery to the inner periphery.
  • the flow groove 122 is preferably formed radially.
  • the size and number of flow grooves 132 are not specified. However, the length of the flow groove 132 is set to be larger than the width of the coil member 20.
  • the upper plate 12 like the lower plate 13, has a disk shape and is made of a material that can be magnetized, and is provided with a through hole 121 and a plurality of flow grooves 122.
  • the flow groove 122 is formed on one side of the upper plate 12, that is, on the side opposite to the coil member 20.
  • the flow groove 122 is set to have the same shape and position as the flow groove 132 of the lower plate 13.
  • the shapes and positions of the flow groove 122 and the flow groove 132 may be set differently.
  • a stepped portion is provided on the outer periphery of the upper plate 12 in the same manner as the lower plate 13.
  • the stepped portion of the upper plate 12 has the same shape and function as that of the lower plate 13.
  • an insulating film 12a such as Teflon is attached to the outer surfaces of the upper plate 12 and the lower plate 13.
  • the insulating film 12a is for insulating the main field unit 1 from the armature unit or other field units disposed adjacent to it.
  • the support member 14 has a disk shape, and a through hole 141 for forming the hollow portion 10a is formed in the central portion.
  • the support member 14, like the upper plate 12 and the lower plate 13, is made of a material that can be magnetized, and is preferably made of heat-treated pure iron.
  • the diameter of the outer periphery of the support member 14 is set to a size corresponding to the diameter of the inner periphery of the coil member 20.
  • the support member 14 is disposed while being seated in the central portion of the coil member 20, and the outer periphery of the support member 14 supports the inner periphery of the coil member 20. Additionally, the thickness of the support member 14 is set to a size corresponding to the thickness of the coil member 20.
  • the support member 14 is provided with a plurality of cut grooves 142 from the outer periphery to the inner periphery.
  • Figure 16 is a plan view showing the support member 14 disposed on the upper side of the lower plate 13.
  • the cut groove 142 of the support member 14 is provided at a position corresponding to the flow grooves 122 and 132 provided in the upper plate 12 and the lower plate 13. Accordingly, the flow grooves 122 and 132 communicate with each other through the cut groove 142 of the support member 14.
  • the width of the cut groove 142 is preferably set to be equal or greater than the width of the flow grooves 122 and 132.
  • the inner terminal 30b of the coil member 20 is guided upward or downward through the cut groove 142 and then inserted into the housing 10 through the cut grooves 122 and 132. ) is guided to the outside of the
  • the ring member 11 has a ring shape with a hollow interior.
  • the ring member 11, like the upper plate 12 and the lower plate 13, is made of a material that can be magnetized, and is preferably made of heat-treated pure iron.
  • the diameter of the inner periphery of the ring member 11 is set to a size corresponding to the diameter of the outer periphery of the coil member 20.
  • the coil member 20 is arranged while being seated on the inside of the ring member 11, and the inner periphery of the ring member 11 supports the outer periphery of the coil member 20.
  • Step portions 111 and 112 are provided at the upper and lower ends of the ring member 11, respectively, along the inner peripheral surface. These step portions 111 and 112 are for supporting the step portion 133 of the upper plate 12 and the lower plate 13. The stepped portions 111 and 112 may be removed as needed.
  • a guide groove 113 is preferably provided on the inner peripheral surface of the ring member 13 to guide the outer terminal 20a of the coil member 20 in an upward or downward direction.
  • the guide groove 113 is disposed at a position corresponding to the cut grooves 122 and 132 provided in the upper plate 12 and the lower plate 13. Accordingly, the outer terminal 20a of the coil member 20 is guided upward or downward through the guide groove 113 and then guided to the outside of the housing 10 through the cut grooves 122 and 132.
  • the guide groove 113 can be removed when the thickness of the conductor constituting the coil member 20 is below a certain level.
  • the height of the ring member 14 is set to a size corresponding to the thickness of the coil member 20. Accordingly, the support member 14, the coil member 20, and the ring member 11 are arranged while being in close contact with the upper plate 12 and the lower plate 13.
  • FIG. 17 is a cross-sectional view showing the cross-sectional configuration along line A-A' in FIG. 14.
  • the support member 14 is arranged in close contact with the inner surface of the coil member 20, and the ring member 11 is arranged in close contact with the outer surface of the coil member 20.
  • an upper plate 12 and a lower plate 13 are disposed on the upper and lower sides of the coil member 20, respectively, in close contact with each other.
  • the ring member 11, the upper plate 12, the lower plate 13, and the support member 14 constitute the housing 10. Accordingly, the coil member 20 is mounted in close contact with the housing 10.
  • all components constituting the housing 10 are made of a material that can be magnetized, more preferably a material with high magnetic permeability such as pure iron, and serve as a magnet for projecting the magnetic field generated in the coil member 20.
  • a material that can be magnetized more preferably a material with high magnetic permeability such as pure iron, and serve as a magnet for projecting the magnetic field generated in the coil member 20.
  • the magnetic field generated by the coil member 20 can be efficiently provided to other adjacent devices, such as an armature unit.
  • the flow groove 122 of the upper plate 12, the cut groove 142 of the support member 14, and the flow groove 132 of the lower plate 32 communicate with each other.
  • These communication structures constitute a passage for refrigerant circulation, that is, a duct for refrigerant, for the circulation of refrigerant such as air.
  • the duct for the refrigerant is formed while passing through the upper surface, inner peripheral surface, and lower surface of the coil member 20. That is, the refrigerant duct is configured to allow the refrigerant to flow while entirely surrounding the outer surface of the coil member 20.
  • the communication structure consisting of the flow groove 122 of the upper plate 12, the cut groove 142 of the support member 14, and the flow groove 132 of the lower plate 13 contains the refrigerant. Tubes for circulation may be installed.
  • the shape and structure of the support member 14 are not specified. As the support member 14, any structure that can stably support the coil member 20, the upper plate 12, and the lower plate 13 and communicate between the flow grooves 122 and 132 can be preferably employed. there is.
  • the housing is made of a material that can be magnetized, and the coil member is installed in close contact with the housing. Accordingly, the magnetic field generated by the coil member can be projected with high efficiency to other adjacent devices through the housing.
  • a plurality of ducts are provided in the housing while entirely surrounding the outer surface of the coil member.
  • the temperature of the housing and its interior rises due to heat conduction and heat radiation, and thus a flow of air occurs between the inside and outside of the housing. Convection of air occurs through the ducts described above. Additionally, heat energy inside the housing is released to the outside due to the flow of air through the duct, thereby preventing excessive heat energy from accumulating in the housing and coil member.
  • the housing is made of a material that can be magnetized.
  • a plurality of coil members are provided inside the housing.
  • Each coil member is provided with an input terminal for supplying field current, and these are each drawn out to the outside of the housing.
  • the field unit can be driven in various ways depending on how the input terminal of each coil member is properly wired or how field current is supplied to each input terminal.
  • all of the plurality of coil members are installed while being in close contact with the housing. Accordingly, the loss of the magnetic field generated in the coil member is minimized.
  • the housing is provided with a plurality of ducts for circulation of the refrigerant, and each duct is installed while passing through a plurality of coil members.
  • each duct is installed while passing through a plurality of coil members.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Electromagnets (AREA)

Abstract

La présente invention concerne une unité d'aimant de champ ayant une fonction de refroidissement, l'unité d'aimant de champ ayant une structure de circulation de fluide frigorigène de façon à réduire l'accumulation de chaleur. L'unité d'aimant de champ ayant une fonction de refroidissement, selon la présente invention, comprend un boîtier (10), et un élément de bobine (20) couplé au boîtier (10). Le boîtier comprend une plaque supérieure (11), une plaque inférieure (12), et un élément de support (13) supportant la plaque supérieure (11) et la plaque inférieure (12). La plaque supérieure (11) et la plaque inférieure (12) comprennent respectivement une pluralité de rainures découpées (111, 121) à partir de la périphérie externe vers l'intérieur. Les rainures découpées (111, 121) communiquent l'une avec l'autre à travers l'élément de support (13) à l'intérieur du boîtier (10). Les rainures découpées (111, 121) forment des passages pour la circulation d'un fluide frigorigène.
PCT/KR2023/013978 2022-09-15 2023-09-15 Unité d'aimant de champ ayant une fonction de refroidissement WO2024058621A2 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
KR10-2022-0116609 2022-09-15
KR10-2022-0116605 2022-09-15
KR1020220116609A KR102651519B1 (ko) 2022-09-15 2022-09-15 냉각 기능을 갖춘 계자 유니트
KR10-2022-0116607 2022-09-15
KR1020220116605A KR102649631B1 (ko) 2022-09-15 2022-09-15 냉각 기능을 갖춘 계자 유니트
KR1020220116607A KR102649633B1 (ko) 2022-09-15 2022-09-15 냉각 기능을 갖춘 계자 유니트
KR10-2022-0118886 2022-09-20
KR1020220118886A KR102649638B1 (ko) 2022-09-20 2022-09-20 냉각 기능을 갖춘 계자 유니트

Publications (2)

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WO2024058621A2 true WO2024058621A2 (fr) 2024-03-21
WO2024058621A3 WO2024058621A3 (fr) 2024-05-10

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3294497B2 (ja) * 1995-09-27 2002-06-24 株式会社デンソー 交流発電機
CN100340786C (zh) * 2003-01-29 2007-10-03 汉拏空调株式会社 场线圈的装配结构
WO2015043609A1 (fr) * 2013-09-24 2015-04-02 Сергей Евгеньевич УГЛОВСКИЙ Générateur de courant alternatif à deux stators à disque et à aimants permanents
KR102506374B1 (ko) * 2017-12-12 2023-03-07 주식회사 아모센스 무선전력 송신장치
JP2019129587A (ja) * 2018-01-24 2019-08-01 本田技研工業株式会社 回転電機用ステータコア及び回転電機

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