Edgewise coils and conductive members
Edgewise coils and conductive members with irregular surface protrusions or recesses improve heat dissipation efficiency by increasing surface area and maintaining bending rigidity, addressing excessive heat generation from high currents.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- AUTONETWORKS TECH LTD
- Filing Date
- 2024-11-21
- Publication Date
- 2026-06-02
Smart Images
Figure 2026089876000001_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to an edgewise coil and a conductive member.
Background Art
[0002] Patent Document 1 discloses an edgewise coil formed by spirally winding a flat wire. The cross-sectional shape of the flat wire is rectangular. Also, Patent Document 2 discloses a conductive member using a bus bar made of a conductive material. The cross-sectional shape of the bus bar is rectangular.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Patent Document 2
Summary of the Invention
Problems to be Solved by the Invention
[0004] In the above-mentioned edgewise coil and conductive member, when the current value flowing through the flat wire or bus bar increases, the amount of heat generated by the flat wire or bus bar during energization increases, so heat dissipation measures are required.
[0005] The edgewise coil of the first disclosure and the conductive member of the second disclosure are completed based on the above circumstances, and aim to improve the heat dissipation efficiency.
Means for Solving the Problems
[0006] The edgewise coil of the first disclosure includes a coil portion formed by spirally bending a long flat wire, wherein the flat wire has a plate-shaped main body portion with a rectangular cross-section having a smaller plate thickness dimension than the plate width dimension, The plate-shaped main body is integrally formed with the plate-shaped main body and has an irregular shape that protrudes from the outer surface of the plate-shaped main body or that recesses the outer surface of the plate-shaped main body.
[0007] The conductive member of the second disclosure is It is equipped with a long, flat bass bar, The aforementioned busbar is A rectangular cross-section plate-like main body with a plate thickness dimension smaller than the plate width dimension, The plate-shaped main body is integrally formed with the plate-shaped main body and has an irregular shape that protrudes from the outer surface of the plate-shaped main body or that recesses the outer surface of the plate-shaped main body. [Effects of the Invention]
[0008] According to the first and second disclosures, heat dissipation efficiency can be improved. [Brief explanation of the drawing]
[0009] [Figure 1] Figure 1 is a cross-sectional view of the edgewise coil of Example 1. [Figure 2] Figure 2 is a cross-sectional view of the rectangular wire of Example 1. [Figure 3] Figure 3 is a cross-sectional view of the edgewise coil of Example 2. [Figure 4] Figure 4 is a cross-sectional view of the rectangular wire of Example 2. [Figure 5] Figure 5 is a cross-sectional view of the rectangular wire of Example 3. [Figure 6] Figure 6 is a cross-sectional view of the rectangular wire of Example 4. [Figure 7] Figure 7 is a cross-sectional view of the rectangular wire of Example 5. [Figure 8] Figure 8 is a cross-sectional view of the rectangular wire of Example 6. [Figure 9] Figure 9 is a cross-sectional view of the rectangular wire of Example 7. [Figure 10] Figure 10 is a cross-sectional view of the rectangular wire of Example 8. [Figure 11] Figure 11 is a cross-sectional view of the rectangular wire of Example 9. [Figure 12]Figure 12 is a cross-sectional view of the flat angle wire of Example 10. [Figure 13] Figure 13 is a cross-sectional view of the flat angle wire of Example 11. [Figure 14] Figure 14 is a cross-sectional view of the flat angle wire of Example 12. [Figure 15] Figure 15 is a cross-sectional view of the flat angle wire of Example 13. [Figure 16] Figure 16 is a cross-sectional view of the flat angle wire of Example 14. [Figure 17] Figure 17 is a cross-sectional view of the flat angle wire of Example 15. [Figure 18] Figure 18 is a cross-sectional view of the flat angle wire of Example 16. [Figure 19] Figure 19 is a cross-sectional view of the flat angle wire of Example 17.
Mode for Carrying Out the Invention
[0010] [Description of Embodiments of the Present Disclosure] First, embodiments of the present disclosure will be listed and described. Combinations of the following multiple embodiments that do not cause contradictions are also included in the mode for carrying out the invention.
[0011] The edgewise coil of the first disclosure (1) includes a coil portion formed by spirally bending a long flat angle wire, and the flat angle wire has a plate-shaped main body portion with a rectangular cross-section having a plate thickness dimension smaller than the plate width dimension, and a deformed portion integrally formed with the plate-shaped main body portion and protruding from the outer surface of the plate-shaped main body portion or recessing the outer surface of the plate-shaped main body portion. According to the configuration of the first disclosure, since the deformed portion protruding from the outer surface of the plate-shaped main body portion or recessing the outer surface of the plate-shaped main body portion is integrally formed with the plate-shaped main body portion, compared with a form without forming a deformed portion, the perimeter of the cross-section of the entire flat angle wire is longer by the amount of the formed deformed portion. In the edgewise coil of the first disclosure, since the surface area of the entire flat angle wire is widely secured, the heat dissipation efficiency is good.
[0012] (2) In (1), it is preferable that the irregular shape protrudes from the outer surface of the plate-shaped main body in the thickness direction of the plate-shaped main body. In order to increase the surface area of the rectangular cross-section of the rectangular cross-section of the rectangular cross-section, the thickness dimension of the rectangular cross-section can be reduced and the ratio of the thickness dimension to the width dimension of the rectangular cross-section can be increased. However, if the thickness of the rectangular cross-section is reduced, the rectangular cross-section becomes more prone to bending in the thickness direction. In view of this, in this disclosure, an irregular shape is formed on the outer surface of the rectangular plate-shaped main body, which protrudes in the thickness direction of the plate-shaped main body. With this configuration, the bending rigidity of the plate-shaped main body in the thickness direction is increased by the irregular shape, so that the heat dissipation efficiency can be increased without reducing the bending rigidity of the rectangular cross-section in the thickness direction.
[0013] (3) In (1) or (2), the rectangular wire has a pair of wide surfaces on the outer surface of the plate-shaped main body that are perpendicular to the axis of the coil portion, and the irregularly shaped portion includes a rib protruding from one of the pair of wide surfaces and a groove protruding from the other of the pair of wide surfaces, wherein the rib and the groove are fitted together. With this configuration, the fitting of the rib and the groove prevents the rectangular wires facing each other in the axial direction of the coil portion from shifting radially.
[0014] The conductive member of the second disclosure is (4) The busbar is provided with a long, plate-shaped busbar, the busbar having a plate-shaped main body portion with a rectangular cross-section in which the plate thickness dimension is smaller than the plate width dimension, and a shaped portion integrally formed with the plate-shaped main body portion and having a form that protrudes from the outer surface of the plate-shaped main body portion or a form that recesses the outer surface of the plate-shaped main body portion. According to the configuration of the second disclosure, since the shaped portion, which protrudes from the outer surface of the plate-shaped main body portion or has a form that recesses the outer surface of the plate-shaped main body portion, is integrally formed with the plate-shaped main body portion, the circumference of the cross-section of the entire busbar is longer by the amount of the shaped portion that is formed compared to a configuration in which the shaped portion is not formed. The conductive member of the second disclosure has a large surface area for the entire busbar, so the heat dissipation efficiency is good.
[0015] In (5)(4), it is preferable that the irregularly shaped portion has a shape that protrudes from the outer surface of the plate-shaped main body portion in the thickness direction of the plate-shaped main body portion. In order to increase the surface area of the busbar by increasing the perimeter of the cross-section of the rectangular busbar, the thickness dimension of the busbar can be reduced and the ratio of the thickness dimension to the width dimension of the busbar can be increased. However, if the thickness of the busbar is reduced, the busbar becomes more prone to bending in the thickness direction. In view of this, in this disclosure, an irregularly shaped portion is formed on the outer surface of the rectangular plate-shaped main body portion, having a shape that protrudes in the thickness direction of the plate-shaped main body portion. With this configuration, the bending rigidity of the plate-shaped main body portion in the thickness direction is increased by the irregularly shaped portion, so that the heat dissipation efficiency can be increased without reducing the bending rigidity of the busbar in the thickness direction.
[0016] [Details of the embodiments of this disclosure] [Example 1] An edgewise coil 1 of Example 1 embodying the present disclosure will be described with reference to Figures 1 and 2. The present invention is not limited to these examples and is shown in the claims, with all modifications within the meaning and scope equivalent to the claims.
[0017] The edgewise coil 1 of this embodiment 1 has one coil section 11 and a pair of lead sections 12. The edgewise coil 1 is a single component formed by bending a single elongated flat wire 14. The flat wire 14 is a component in which a conductor (not shown) made of a conductive material such as copper, aluminum, or carbon nanotubes is surrounded by an insulating coating (not shown). The cross-sectional shape when the flat wire 14 is cut perpendicular to the length direction is constant over the entire length of the flat wire 14. The flat wire 14 has a plate-shaped main body section 15 and a plurality of irregularly shaped sections 17.
[0018] The characteristics of the plate-shaped main body 15 and the irregularly shaped part 17 will be described below based on the cross-section of the rectangular wire 14. As shown in Figure 2, the cross-sectional shape of the plate-shaped main body 15 is a rectangle in which the ratio of the plate width dimension W in the long side direction to the plate thickness dimension T in the short side direction is relatively large. In Figure 2, the plate-shaped main body 15 is the region enclosed by the imaginary line and the solid line. The part of the plate-shaped main body 15 that constitutes the coil part 11 is positioned with its short side (plate thickness direction) facing the axial direction (up and down direction) of the coil part 11. Of the outer surface of the plate-shaped main body 15, the upper and lower surfaces perpendicular to the axis of the coil part 11 are defined as the wide surface 16.
[0019] The irregularly shaped portion 17 includes a pair of left and right ribs 18 and a pair of left and right grooves 19. The pair of ribs 18 are portions that protrude upward from the upper wide surface 16 of the upper and lower wide surfaces 16. The pair of ribs 18 are positioned closer to the center than to the ends in the width direction of the wide surface 16. The cross-sectional shape of each rib 18 is rectangular. The pair of grooves 19 are portions that are recessed in the lower wide surface 16 of the upper and lower wide surfaces 16. The pair of grooves 19 are positioned in the same position in the width direction as the pair of ribs 18. The cross-sectional shape of each groove 19 is rectangular, the same as that of the ribs 18. The cross-sectional shape of the rectangular wire 14 is symmetrical in the width direction of the plate.
[0020] In the cross-section obtained by cutting the coil section 11 along a plane containing the axis, multiple parts of the rectangular wire 14 that are stacked in the axial direction (up and down direction) are defined as strand sections 13. The rib 18 of the lower strand section 13 in the axial direction is fitted with the groove 19 of the upper strand section 13. The fitting of the rib 18 and the groove 19 prevents relative displacement of adjacent strand sections 13 in the radial direction of the coil section 11 (width direction of the rectangular wire 14). As a result, the coil diameter of the coil section 11 is kept constant.
[0021] The edgewise coil 1 of this embodiment 1 comprises a coil section 11 formed by spirally bending a long, plate-shaped flat wire 14. The flat wire 14 has a plate-shaped main body section 15 and a shaped section 17 integrally formed with the plate-shaped main body section 15. The plate-shaped main body section 15 is a rectangular cross-section portion where the plate thickness dimension T is small relative to the plate width dimension W. The shaped section 17 is either a form that protrudes from the outer surface of the plate-shaped main body section 15 or a form that recesses the outer surface of the plate-shaped main body section 15.
[0022] With this configuration, the irregularly shaped portion 17, which either protrudes from the outer surface of the plate-shaped main body portion 15 or is recessed in the outer surface of the plate-shaped main body portion 15, is integrally formed with the plate-shaped main body portion 15. Compared to a configuration without the irregularly shaped portion 17, the circumference of the entire cross-section of the rectangular wire 14 is longer by the amount of the irregularly shaped portion 17. As the circumference of the entire cross-section of the rectangular wire 14 is longer, the surface area of the rectangular wire 14 is larger, so the Joule heat generated when current is passed through the rectangular wire 14 can be efficiently released.
[0023] One way to increase the surface area of the rectangular cross-section wire 14 without changing its cross-sectional area is to increase the perimeter of the cross-section of the rectangular cross-section wire 14, by increasing the ratio of the thickness dimension T to the width dimension W of the rectangular cross-section wire 14. That is, the width dimension W of the rectangular cross-section wire 14 should be increased while the thickness dimension T of the rectangular cross-section wire 14 should be decreased. However, if the thickness of the rectangular cross-section wire 14 is reduced, the rectangular cross-section wire 14 becomes more prone to bending in the thickness direction. In view of this, in this embodiment 1, an irregularly shaped portion 17 (rib 18) is formed on the outer surface (wide surface 16) of the plate-shaped main body portion 15, protruding in the thickness direction of the plate-shaped main body portion 15. With this configuration, the bending rigidity of the plate-shaped main body portion 15 in the thickness direction is increased by the irregularly shaped portion 17 (rib 18), so that the heat dissipation efficiency can be increased without reducing the bending rigidity of the rectangular cross-section wire 14 in the thickness direction.
[0024] The rectangular wire 14 has a pair of wide surfaces 16 on the outer surface of the plate-shaped main body 15 that are perpendicular to the axis of the coil portion 11. The irregularly shaped portion 17 includes a rib 18 protruding from one of the pair of wide surfaces 16 and a groove 19 protruding from the other of the pair of wide surfaces 16. In the coil portion 11, the rib 18 and the groove 19 are fitted together. With this configuration, the fitting of the rib 18 and the groove 19 prevents the rectangular wires 14 facing each other in the axial direction of the coil portion 11 from shifting radially.
[0025] The rectangular wire 14 of this embodiment 1 can be used, for example, as a busbar B that constitutes a conductive member C for a power circuit in an electric vehicle. In this case, no coil portion 11 is formed on the busbar B (conductive member C). Even when used as a busbar B, the formation of the irregular portion 17 (rib 18 and groove portion 19) allows for efficient dissipation of heat generated in the busbar B when energized. Furthermore, the formation of the rib 18 improves heat dissipation efficiency without reducing the bending rigidity in the thickness direction of the busbar B.
[0026] [Example 2] The edgewise coil 2 of Embodiment 2, which embodies the present disclosure, will be described with reference to Figures 3 and 4. In the edgewise coil 2 of Embodiment 2, the cross-sectional shape of the flat wire 23 constituting the coil portion 20 is different from that of the flat wire 23 of Embodiment 1. In Embodiment 2 as well, the flat wire 23 constituting the edgewise coil 2 can be used as a busbar B constituting a conductive member C that does not have a coil portion 20. The same functions and effects of the edgewise coil 2 and conductive member C of Embodiment 2 as those of Embodiment 1 will not be described.
[0027] The edgewise coil 2 of this embodiment 2 has one coil section 20 and a pair of lead sections 21. The edgewise coil 2 is a single component formed by bending a single elongated rectangular wire 23. The rectangular wire 23 has a plate-shaped main body section 24 and a plurality of irregularly shaped sections 26. As shown in Figure 4, the cross-sectional shape of the plate-shaped main body section 24 is a rectangle in which the ratio of the plate width dimension W in the long side direction to the plate thickness dimension T in the short side direction is relatively large. In Figure 4, the plate-shaped main body section 24 is the region enclosed by the dashed line and the solid line.
[0028] The irregularly shaped portion 26 includes one rib 27 and one groove portion 30. The rib 27 is a portion that protrudes upward from the upper wide surface 25 of the plate-shaped main body portion 24. The rib 27 is positioned at the center of the width direction of the wide surface 25. The rib 27 has a narrow portion 28 that protrudes upward in the thickness direction (upward) from the wide surface 25, and a wide portion 29 that protrudes from the upper end of the narrow portion 28 to both sides of the width direction of the plate-shaped main body portion 24. The cross-sectional shape of the narrow portion 28 is rectangular. The cross-sectional shape of the wide portion 29 is a rectangle in which the width direction dimension is larger than the vertical dimension. The groove portion 30 is a portion that is recessed in the lower wide surface 25 of the plate-shaped main body portion 24. The groove portion 30 has a narrow portion 31 that opens into the wide surface 25, and a widening portion 32 that extends to both sides in the width direction, connected to the upper end of the narrow portion 31. The rib 27 and the groove 30 have the same cross-sectional shape and size. The cross-sectional shape of the rectangular wire 23 is symmetrical in the plate width direction.
[0029] In the coil section 20, the rib 27 of the lower strand section 22 in the axial direction is fitted with the groove 30 of the upper strand section 22. The narrow section 28 and the narrow section 31 are fitted together, and the wide section 29 and the widened section 32 are fitted together. The fitting of the rib 27 and the groove 30 prevents relative displacement of adjacent strand sections 22 in the axial direction, both in the radial direction (width direction of the flat wire 23) and in the axial direction. As a result, the coil diameter and pitch angle of the coil section 20 are kept constant.
[0030] [Examples 3 to 17] The edgewise coils E of Examples 3 to 17, which embody this disclosure, will be described with reference to Figures 5 to 19. In Examples 3 to 17, the cross-sectional shape of the flat rectangular wires 33, 36, 39, 42, 45, 50, 56, 62, 70, 75, 81, 87, 91, 95, and 99 constituting the coil portion of the edgewise coil E is different from that of the flat rectangular wire 14 in Example 1. In Examples 3 to 17, the flat rectangular wires 33, 36, 39, 42, 45, 50, 56, 62, 70, 75, 81, 87, 91, 95, and 99 constituting the edgewise coil E can also be used as busbars B constituting a conductive member C that does not have a coil portion. The operation and effect of the edgewise coil E and conductive member C of Examples 3 to 17 that are the same as those of Example 1 will not be described.
[0031] The flat rectangular wire 33 constituting the edgewise coil E of Example 3 is a long, slender single component formed integrally with a plate-shaped main body 34 and a shaped portion 35, as shown in Figure 5. The cross-sectional shape of the plate-shaped main body is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 5, the plate-shaped main body 34 is the region enclosed by the dashed line and the solid line. The shaped portion 35 is a part that protrudes in the plate width direction from one end face of the plate-shaped main body 34 in the plate width direction. The cross-sectional shape of the shaped portion 35 is a right triangle. The height dimension of the shaped portion 35 is the same as the plate thickness dimension T of the plate-shaped main body 34.
[0032] The rectangular wire 36 constituting the edgewise coil E of Example 4 is a long, slender single component formed integrally with a plate-shaped main body 37 and a shaped portion 38, as shown in Figure 6. The cross-sectional shape of the plate-shaped main body is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 6, the plate-shaped main body 37 is the region enclosed by the imaginary and solid lines. The shaped portion 38 is a part that protrudes in the plate width direction from both end faces of the plate-shaped main body 37 in the plate width direction. The cross-sectional shape of the shaped portion 38 is a right triangle. The height dimension of the shaped portion 38 is the same as the plate thickness dimension T of the plate-shaped main body 37. The overall cross-sectional shape of the rectangular wire 36 is an isosceles trapezoid. The cross-sectional shape of the rectangular wire 36 is symmetrical in the plate width direction.
[0033] The rectangular wire 39 constituting the edgewise coil E of Example 5 is a long, slender single component formed integrally with a plate-shaped main body 40 and a pair of irregularly shaped parts 41, as shown in Figure 7. The cross-sectional shape of the plate-shaped main body 40 is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 7, the plate-shaped main body 40 is the region enclosed by the imaginary line and the solid line. The irregularly shaped parts 41 are portions that protrude in the plate width direction from both ends of the plate-shaped main body in the plate width direction. The cross-sectional shape of each irregularly shaped part 41 is a right triangle. The height dimension of the irregularly shaped part 41 is the same as the plate thickness dimension T of the plate-shaped main body 40. The hypotenuses of the pair of irregularly shaped parts 41 are parallel to each other. The overall cross-sectional shape of the rectangular wire 39 is a parallelogram. The cross-sectional shape of the rectangular wire 39 is point-symmetrical.
[0034] The rectangular wire 42 constituting the edgewise coil E of Example 6 is an elongated single component formed integrally with a plate-shaped main body 43 and a pair of irregularly shaped parts 44, as shown in Figure 8. The cross-sectional shape of the plate-shaped main body 43 is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 8, the plate-shaped main body 43 is the region enclosed by the dashed line and the solid line. The irregularly shaped parts 44 are portions that protrude in the plate width direction from both ends of the plate-shaped main body 43 in the plate width direction. The cross-sectional shape of the irregularly shaped parts 44 is rectangular. The height dimension of the irregularly shaped parts 44 is smaller than the plate thickness dimension T of the plate-shaped main body 43. The irregularly shaped parts 44 are located at the central position in the plate thickness direction of the plate-shaped main body 43. The cross-sectional shape of the rectangular wire 42 is symmetrical in both the plate thickness direction and the plate width direction.
[0035] The flat rectangular wire 45 constituting the edgewise coil E of Example 7 is a long, slender single component formed integrally with a plate-shaped main body portion 46 and a shaped portion 47, as shown in Figure 9. The cross-sectional shape of the plate-shaped main body portion 46 is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 6, the plate-shaped main body portion 46 is the region enclosed by the dashed line and the solid line. The shaped portion 47 includes one rib 48 and one groove portion 49. The rib 48 is a portion that protrudes in the plate width direction from one end face of the plate-shaped main body portion 46 in the plate width direction. The groove portion 49 is a portion that is recessed on one end face of the plate-shaped main body portion 46 in the plate width direction. The dimensions of the rib 48 and groove portion 49 in the plate thickness direction of the plate-shaped main body portion 46 are smaller than the plate thickness dimension T of the plate-shaped main body portion 46, and the cross-sectional shape of the rib 48 and groove portion 49 is rectangular. The ribs 48 and grooves 49 are located in the center of the plate-shaped main body 46 in the thickness direction. The cross-sectional shape of the rectangular wire 45 is symmetrical in the thickness direction.
[0036] The flat rectangular wire 50 constituting the edgewise coil E of Example 8 is a long, slender single component formed integrally with a plate-shaped main body 51 and a shaped portion 53, as shown in Figure 10. The cross-sectional shape of the plate-shaped main body 51 is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 10, the plate-shaped main body 51 is the region enclosed by the dashed line and the solid line. The shaped portion 53 includes one groove 54 and one rib 55. The groove 54 opens to one end face of the plate-shaped main body 51 in the plate width direction. The upper inner surface of the groove 54 is parallel to the upper wide surface 52 of the plate-shaped main body 51. The lower inner surface of the groove 54 is parallel to the lower wide surface 52 of the plate-shaped main body 51. The inner surface of the groove 54 in the width direction of the plate is parallel to the outer surface of the plate-shaped main body in the thickness direction. The rib 55 is a portion that protrudes from the opening edge of the groove 54 on the outer surface of the plate-shaped main body 51 in the thickness direction of the plate-shaped main body 51. The rib 55 protrudes in such a way that it narrows the opening dimension of the groove 54 in the thickness direction.
[0037] The flat rectangular wire 56 constituting the edgewise coil E of Example 9 is a long, slender single component formed integrally with a plate-shaped main body 57 and a shaped portion 59, as shown in Figure 11. The cross-sectional shape of the plate-shaped main body 57 is a rectangle in which the ratio of the plate width dimension W in the long side direction to the plate thickness dimension T in the short side direction is relatively large. In Figure 11, the plate-shaped main body 57 is the region enclosed by the dashed line and the solid line. The shaped portion 59 is a groove-like portion recessed in the upper wide surface 58 of the plate-shaped main body 57. The shaped portion 59 has a narrow portion 60 that opens into the wide surface 58 and a widened portion 61 that extends from the lower end of the narrow portion 60 and expands on both sides in the plate width direction. The cross-sectional shape of the narrow portion 60 is rectangular. The cross-sectional shape of the widened portion 61 is a rectangle in which the dimension in the plate width direction is larger than the dimension in the vertical direction. The cross-sectional shape of the rectangular wire 56 is symmetrical in the width direction of the plate.
[0038] The flat rectangular wire 62 constituting the edgewise coil E of Example 10 is a single, elongated component formed integrally with a plate-shaped main body 63 and a shaped portion 66, as shown in Figure 12. The cross-sectional shape of the plate-shaped main body 63 is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 12, the plate-shaped main body 63 is the region enclosed by the dashed line and the solid line. The shaped portion includes a plurality of ribs 67 and a plurality of grooves 68. The ribs are portions that protrude from the upper wide surface 64 and the lower wide surface 64 of the plate-shaped main body 63 in the plate thickness direction. The grooves 68 are portions that are recessed on both end faces 65 in the plate width direction of the plate-shaped main body 63. The dimensions of the grooves 68 in the plate thickness direction of the plate-shaped main body 63 are smaller than the plate thickness dimension T of the plate-shaped main body 63. The cross-sectional shape of the rib 67 and groove 68 is rectangular. A hollow section 69 is formed inside the plate-shaped main body 63. The formation of the hollow section 69 reduces the weight of the rectangular wire 62. The cross-sectional shape of the rectangular wire 62 is symmetrical in both the thickness direction and the width direction.
[0039] The flat rectangular wire 70 constituting the edgewise coil E of Example 11 is a long, slender single component formed integrally with a plate-shaped main body 71 and a shaped portion 73, as shown in Figure 13. The cross-sectional shape of the plate-shaped main body 71 is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 13, the plate-shaped main body 71 is the region enclosed by the imaginary line and the solid line. The shaped portion 73 includes a pair of first ribs 74S and one second rib 74L. The pair of first ribs 74S are portions that protrude in the plate width direction from both ends of the plate-shaped main body 71 in the plate width direction. The cross-sectional shape of the first ribs 74S is a right triangle. The cross-sectional shape formed by the plate-shaped main body 71 and the pair of first ribs 74S is an isosceles trapezoid. The second rib 74L is a portion that protrudes downward from the lower wide surface 72 of the plate-shaped main body 71. The second rib 74L is positioned in the center of the plate-shaped main body 71 in the width direction. The cross-sectional shape of the second rib 74L is a rectangle with a width dimension that is larger than the height dimension. The cross-sectional shape of the flat wire 70 is symmetrical in the width direction.
[0040] The flat rectangular wire 75 constituting the edgewise coil E of Example 12 is a long, slender single component formed integrally with a plate-shaped main body 76 and a shaped portion 78, as shown in Figure 14. The cross-sectional shape of the plate-shaped main body 76 is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 14, the plate-shaped main body 76 is the region enclosed by the dashed line and the solid line. The shaped portion 78 includes a pair of ribs 79 and a groove 80. The ribs 79 are portions that protrude upward from both ends in the plate width direction on the upper wide surface 77 of the plate-shaped main body 76. The outer surface of the ribs 79 in the plate thickness direction is flush with the outer surface of the plate-shaped main body 76. The groove 80 is a recessed portion in the central part in the plate width direction of the upper wide surface 77. The cross-sectional shape of the rib 79 and groove 80 is a rectangle in which the dimension in the thickness direction is smaller than the dimension in the width direction. The area where the groove 80 is formed in the width direction is the entire area of the wide surface 77 where the pair of ribs 79 are not formed. That is, the pair of ribs 79 and groove 80 are arranged adjacent to each other in the width direction. The cross-sectional shape of the rectangular wire 75 is symmetrical in the width direction.
[0041] The flat rectangular wire 81 constituting the edgewise coil E of Example 13 is a long, slender single component formed integrally with a plate-shaped main body 82 and a plurality of irregularly shaped parts 84, as shown in Figure 15. The cross-sectional shape of the plate-shaped main body 82 is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 15, the plate-shaped main body 82 is the region enclosed by the dashed line and the solid line. The irregularly shaped part 84 includes a plurality of first grooves 85 and a plurality of second grooves 86. A pair of first grooves 85 are formed on the upper wide surface 83 and the lower wide surface 83 of the plate-shaped main body 82, respectively. The cross-sectional shape of the first grooves 85 is an isosceles triangle symmetrical in the plate width direction. One second groove 86 is formed on each of the outer surfaces of the plate-shaped main body 82 in the plate width direction. The cross-sectional shape of the second groove 86 is an isosceles triangle that is symmetrical in the plate thickness direction. The cross-sectional shape of the rectangular wire 81 is symmetrical in both the plate thickness direction and the plate width direction.
[0042] The flat rectangular wire 87 constituting the edgewise coil E of Example 14 is a long, slender single component formed integrally with a plate-shaped main body 88 and a shaped portion 90, as shown in Figure 16. The cross-sectional shape of the plate-shaped main body 88 is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 16, the plate-shaped main body 88 is the region enclosed by the dashed line and the solid line. The shaped portion 90 is the part that protrudes from the upper wide surface 89 of the plate-shaped main body 88. The shaped portion 90 is located only at one end of the wide surface 89 in the plate width direction. The shape of the shaped portion 90 in cross-section is a gently curved arc.
[0043] The flat rectangular wire 91 constituting the edgewise coil E of Example 15 is a long, slender single component formed integrally with a plate-shaped main body 92 and an irregularly shaped portion 94, as shown in Figure 17. The cross-sectional shape of the plate-shaped main body 92 is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 17, the plate-shaped main body 92 is the region enclosed by the imaginary line and the solid line. The irregularly shaped portion 94 is the part that protrudes from the upper wide surface 93 of the plate-shaped main body 92. The irregularly shaped portion 94 is located only in the central part in the plate width direction of the wide surface 93. The shape of the irregularly shaped portion 94 in cross-section is a gently curved arc. The cross-sectional shape of the flat rectangular wire 91 is symmetrical in the plate width direction.
[0044] The flat rectangular wire 95 constituting the edgewise coil E of Example 16 is an elongated single component formed integrally with a plate-shaped main body 96 and a pair of irregularly shaped parts 98, as shown in Figure 18. The cross-sectional shape of the plate-shaped main body 96 is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 18, the plate-shaped main body 96 is the region enclosed by the dashed line and the solid line. The irregularly shaped parts 98 are portions that protrude from the upper wide surface 97 of the plate-shaped main body. The irregularly shaped parts 98 are located at both ends of the wide surface 97 in the plate width direction. The shape of the irregularly shaped parts 98 in cross-section is a gently curved arc shape. The cross-sectional shape of the flat rectangular wire 95 is symmetrical in the plate width direction.
[0045] The flat rectangular wire 99 constituting the edgewise coil E of Example 17 is a long, slender single component formed integrally with a plate-shaped main body 100 and an irregularly shaped portion 101, as shown in Figure 19. The cross-sectional shape of the plate-shaped main body 100 is a rectangle with a relatively large ratio between the plate width dimension W in the long side direction and the plate thickness dimension T in the short side direction. In Figure 19, the plate-shaped main body 100 is the region enclosed by the dashed line and the solid line. The irregularly shaped portion 101 is a portion that protrudes in the plate width direction from one end face of the plate-shaped main body 100 in the plate width direction. The cross-sectional shape of the irregularly shaped portion 101 is an isosceles triangle symmetrical in the plate thickness direction of the plate-shaped main body 100. The height dimension of the irregularly shaped portion 101 is the same as the plate thickness dimension T of the plate-shaped main body 100. The cross-sectional shape of the flat rectangular wire 99 is symmetrical in the plate thickness direction.
[0046] [Other examples] The present invention is not limited to the embodiments described above and in the drawings, but is shown in the claims. The present invention includes the meaning of equivalents to the claims and all modifications within the claims. [Explanation of Symbols]
[0047] 1… Edgewise coil 2… Edgewise coil 11... Coil section 12…Derivation part 13...Wire strands 14…Hirakakusen 15…Plate-shaped main body 16… Wide surface 17...Unusual part 18... Rib 19… Groove 20... Coil section 21…Derivation part 22...Wire strands 23... Flat-angled line 24...Plate-shaped main body 25… Wide surface 26…Unusual part 27... Rib 28…Narrow part 29... Wide part 30… Groove 31...Narrow part 32... Widening section 33... Flat-angled line 34...Plate-shaped main body 35…Unusual part 36... Flat-angled line 37... Plate-shaped main body 38…Unusual part 39... Hirakakusen 40... Plate-shaped main body 41…Unusual part 42... Flat-angled line 43...Plate-shaped main body 44…Unusual part 45... Flat-angled line 46... Plate-shaped main body 47…Unusual part 48... Rib 49… Groove 50... Flat corner line 51...Plate-shaped main body 52... Wide surface 53…Unusual part 54… Groove 55... Ribs 56... Flat-angled line 57... Plate-shaped main body 58... Wide surface 59…Unusual part 60…Narrow part 61... Widening section 62... Flat-angled line 63... Plate-shaped main body 64... Wide surface 65...Both end faces 66…Unusual part 67... Rib 68… Groove 69...Hollow part 70... Flat-angled line 71...Plate-shaped main body 72... Wide surface 73…Unusual part 74L…Second rib (rib) 74S…First rib (rib) 75... Flat-angled line 76... Plate-shaped main body 77... Wide surface 78…Unusual part 79... Rib 80… Groove 81... Flat-angled line 82...Plate-shaped main body 83... Wide surface 84…Unusual part 85...First groove (groove) 86... Second groove (groove) 87... Hirakakusen 88... Plate-shaped main body 89... Wide surface 90…Unusual part 91... Flat-angled line 92...Plate-shaped main body 93... Wide surface 94...Unusual part 95... Flat-angled line 96... Plate-shaped main body 97... Wide surface 98…Unusual part 99... Flat-angled line 100... Plate-shaped main body 101...Unusual part B...bus bar C... Conductive material E... Edgewise Coil T...Thickness dimension of the plate-shaped main body W...Width dimension of the plate-shaped main body
Claims
1. It comprises a coil section formed by bending a long, flat, plate-like wire into a spiral shape. The aforementioned rectangular line is, A plate-shaped main body with a rectangular cross-section where the plate thickness is smaller than the plate width, An edgewise coil having a shaped portion integrally formed with the plate-shaped main body and having a shape that protrudes from the outer surface of the plate-shaped main body or a shape that recesses the outer surface of the plate-shaped main body.
2. The edgewise coil according to claim 1, wherein the irregularly shaped portion has a shape that protrudes from the outer surface of the plate-shaped main body in the thickness direction of the plate-shaped main body.
3. The aforementioned rectangular wire has a pair of wide surfaces on the outer surface of the plate-shaped main body that are perpendicular to the axis of the coil portion, The aforementioned irregular part is, A rib protruding from one of the pair of wide surfaces, The pair of wide surfaces includes a groove protruding from the other wide surface, The edgewise coil according to claim 1 or claim 2, wherein the rib and the groove are fitted together.
4. It is equipped with a long, flat bass bar, The aforementioned busbar is A plate-shaped main body with a rectangular cross-section where the plate thickness is smaller than the plate width, A conductive member having a shaped portion integrally formed with the plate-shaped main body and having a shape that protrudes from the outer surface of the plate-shaped main body or a shape that recesses the outer surface of the plate-shaped main body.
5. The conductive member according to claim 4, wherein the irregularly shaped portion has a shape that protrudes from the outer surface of the plate-shaped main body in the thickness direction of the plate-shaped main body.