JP4621167B2 - Molded transformer - Google Patents

Description

  The present invention relates to a configuration of a molded transformer, and more particularly to a support configuration of a cable for connecting between a winding start side coil terminal and a tap switching terminal of a primary side coil (high voltage side coil) of a molded coil. .

In the conventional molded transformer, the connection between the winding start side coil terminal and the tap switching terminal of the primary side coil (high voltage side coil) of the molded coil is made of, for example, a bent copper as shown in FIG. I went with a pipe. That is, in the mold transformer 101 of the single-phase type 'in FIG. 9, between the primary winding start-side coil terminals _11d 1 of the coil 1d _1, 111d ₁ and the primary side tap switching terminal 112d ₂₁ of the coil 1d ₂ and connected by a copper pipe 41d _1, also winding start-side coil terminals _11d 2 of the parallel with the primary coil 1d ₁ primary coil 1d _2, 111d ₂ and primary coil 1d ₁ tap between the switch terminal 112d _11, connected by a copper pipe 41d _2. The copper pipes 41d ₁ and 41d ₂ are bent so that they do not come into contact with each other at a three-dimensionally intersecting position. In FIG. 9, 21d _{1 to} 21d ₃ are terminals of the secondary side coil (low voltage side coil), 20d is a transformer fitting, 3d is a core, 50d is a support member, 113d ₁ and 113d ₂ are connection members for tap switching. 114d _1n and 114d _2n are tap switching terminals, respectively.

  Moreover, as a prior art related to the present invention and described in the patent document, for example, Japanese Patent Laid-Open No. 10-326713 (Patent Document 1) and Japanese Utility Model Laid-Open No. 1-145019 (Patent Document 2). There is what is described in. In Japanese Patent Laid-Open No. 10-326713, in order to reduce the man-hours for manufacturing and attaching the high-pressure interphase leads, the high-pressure interphase leads are formed of metal pipes bent at a predetermined angle, and both ends of the metal pipe are crushed. A configuration in which the flat portion is used as the connection terminal is described. Japanese Utility Model Laid-Open No. 1-145019 discloses a first insulating tube portion having a hollow portion through which one high-voltage insulated wire is inserted as an insulating spacer to be attached to a crossing portion of a high-voltage insulated wire between different voltages or different phases. A second insulating tube portion formed integrally with the first insulating tube portion, intersecting the first insulating tube portion in an appropriately spaced state, and having a hollow portion through which the other high-voltage insulated wire is inserted. A configuration to be provided is described.

JP-A-10-326713 Japanese Utility Model Publication No. 1-145019

Among the above-described conventional techniques, the single-phase mold transformer 101 ′ of FIG. 9 connects the copper pipes 41d ₁ and 41d ₂ between the winding start side coil terminal of the primary side coil and the tap switching terminal. It needs to be processed into possible lengths and shapes. Further, the copper pipes 41d ₁ and 41d ₂ may increase the manufacturing cost of the molded transformer 101 ′. Furthermore, when the pipes come close to each other at the intersection of the pipes, they may come into contact with each other. There is also a risk that an operator may accidentally touch the pipe and get an electric shock. Further, when using a metal pipe described in Japanese Patent Laid-Open No. 10-326713, it is necessary to process the metal pipe into a length and a shape that can be connected between the winding start side coil terminal and the tap switching terminal. However, when the metal pipes approach each other at the intersection between the metal pipes, they may come into contact with each other. It is easy to increase the manufacturing cost of the transformer. Furthermore, in the technique described in Japanese Utility Model Laid-Open No. 1-145019, a first insulating tube portion and a second insulating tube portion having a tube inner diameter corresponding to the outer diameter of the high-voltage insulated wire are necessary, and this is used for a transformer. It is easy to increase the cost of the transformer. Further, when the high-voltage insulated wire has a crimp terminal having a width larger than the outer diameter of the high-voltage insulated wire at the end, it is difficult to insert the crimp terminal into the first and second insulating tube portions. When the inner diameter of the tube is such that the crimp terminal can be inserted, the difference between the inner diameter of the tube and the outer diameter of the high-voltage insulated wire becomes large, and stable holding of the high-voltage insulated wire becomes difficult.

The problem of the present invention is that, in view of the state of the prior art described above, in a molded transformer, between the winding start side coil terminal of the primary side coil and the tap switching terminal is ensured and safe by a simple and low-cost configuration. Is to be able to connect to.
An object of the present invention is to provide a molded transformer that solves the above-described problems and ensures the reliability of the tap switching connection portion of the primary coil.

In order to solve the above-described problems, in the present invention, as a molded transformer, a winding start side coil terminal of a first phase primary side coil of a plurality of phase molded coils, and a second phase primary side coil Or between the tap switching terminal of the primary coil of the first phase and the winding start side coil terminal of the primary coil of the second phase, or a single phase Between the winding start side coil terminal of the first primary coil of the molded coil and the tap switching terminal of the second primary coil connected in parallel with the first primary coil and the first primary coil. A plurality of cables connecting between the tap switching terminal of the primary coil and the winding start side coil terminal of the second primary coil, the cross section of the hole being trapezoidal or substantially trapezoidal at the intersection of the cables vertex side of the cross-vital trapezoid or approximately trapezoid in solid form together a By a support member having two holes facing each other, a structure to support the in through holes in a state in which the cable penetrates.

  According to the present invention, in the molded transformer, the winding start side coil terminal of the primary side coil and the tap switching terminal can be reliably and safely connected with a simple and low-cost configuration.

Embodiments of the present invention will be described below with reference to the drawings.
FIGS. 1-7 is explanatory drawing of the 1st Example of this invention. FIG. 1 is a structural example diagram of a three-phase mold transformer as a first embodiment of the present invention, FIG. 2 is a connection diagram of a three-phase mold coil in the three-phase mold transformer of FIG. 1, and FIG. FIG. 4 is an explanatory diagram of a connection cable for a tap switching connection in the three-phase mold transformer of FIG. 1, and FIG. 4 supports the connection cable in the tap switching connection of the three-phase mold transformer of FIG. FIG. 5 is a view showing a state when a connection cable is inserted into the through hole of the support member of FIG. 4, and FIG. 6 is a sectional view of the through hole of the support member of FIG. FIG. 7 is a diagram showing the relationship between the hole cross-sectional shape of the through hole of the support member and the maximum electric field strength generated in the through hole portion.
Hereinafter, it is assumed that the same reference numerals and coordinate axes are used for all drawings in the drawings.

In FIG. 1, 100 is a three-phase mold transformer, 1a is a U-phase primary mold coil, 1b is a V-phase primary mold coil, 1c is a W-phase primary mold coil, 11a and 111a are The winding start side coil terminal of the U-phase primary mold coil 1a, 11b and 111b are the winding start side coil terminals of the V phase primary mold coil 1b, and 11c and 111c are the W phase primary side mold. The coil start side coil terminal 3 of the coil 1c is inserted into each of the molded coils 1a, 1b, 1c, and the core forming the annular magnetic circuit of the mold transformer 100, 112a ₁ , 112a ₂ is the U-phase 1 tap switching terminal of the next side mold coil _1a, 112b 1, 112b ₂ is tap switch terminal of the V-phase of the primary molded coil _1b, 112c 1, 112c _2, the primary side of the W-phase Tap switching terminal of Rudokoiru _1c, 114a 1 ~114a ₅ is tap terminal of the primary molded coil 1a of _U-phase, 114b 1 _{~114b 5} is tap terminal of the V-phase of the primary molded coil 1b, 114c ₁ ˜ 114 c ₅ is a tap terminal of the W-phase primary mold coil 1 c, 113 a is a connection switching member that switches connection between the U-phase tap switching terminal 112 a ₂ and the tap terminals 114 a _{1 to} 114 a ₅ , 113b are connection switching member for switching the connection between the terminal 112b ₂ and tap terminal 114b ₁ ~114b ₅ for switching taps of V-phase, 113c, the terminal for switching the tap of the W-phase 112c ₂ and tap terminal 114c ₁ ~ 114c ₅ is a connection switching member that switches the connection between the two.

Further, 4a is a cable for connecting between the winding start-side coil terminals 111a of the primary molded coil 1a of U-phase, a tap switch terminal 112c ₁ of the W-phase of the primary molded coil 1c, 4b is cable connecting the winding start-side coil terminals 111b of V phase of the primary molded coil 1b, and between the tap switching terminals 112a ₁ of the primary molded coil 1a of U-phase, 4c is 1 W-phase primary cable connecting between the winding start-side coil terminals 111c of the side mold coil 1c, a tap switch terminal 112b ₁ of the V-phase of the primary molded coil 1b, 5ab are crossed cable 4a, and 4b of the both cable A support member for supporting the cable 5a is a support member for supporting the cables 4a and 4c at the intersection of both cables, and 21a is a U-phase secondary mold coil. A secondary terminal to which a winding start end of a winding (not shown) (U-phase secondary coil) is connected, 21b is a winding (V-phase) of a V-phase secondary molded coil (not shown) The secondary terminal to which the winding start end of the secondary side coil) is connected, 21c is the winding start end of the winding (W phase secondary coil) of the W phase secondary mold coil (not shown) , 20 is a transformer upper clamp, 30 is a transformer lower clamp, and 50 is a base member that supports the entire molded transformer 100.

  Each of the support members 5ab and 5ac has two through-holes each having a trapezoidal or substantially trapezoidal hole cross section, three-dimensionally intersecting each other, and having apexes facing each other. The support member 5ab allows the cables 4a and 4b to pass through the two through holes, and supports the cables 4a and 4b at the intersection of the two cables 4a and 4b. The support member 5ac also allows the cables 4a and 4c to pass through the two through holes, and supports the cables 4a and 4c at the intersection of the two cables 4a and 4c.

FIG. 2 is a connection diagram of the three-phase primary side mold coils 1a, 1b, and 1c in the three-phase mold transformer 100 of FIG.
In FIG. 2, tap terminals 114a _{1 to} 114a ₅ of the U-phase primary-side molded coil 1a are respectively connected to predetermined winding positions of the windings of the primary-side molded coil 1a, and the V-phase primary-side molded coil each 1b tap terminal 114b ₁ ~114b ₅ of being connected to a predetermined number of turns positions of the windings of the primary molded coil 1b, the tap terminal of the W-phase of the primary molded coil 1c 114c ₁ ~114c ₅ respectively, It is connected to a predetermined number of turns position of the winding of the primary side mold coil 1c. Connection switching member 113a switches the connection between the tap switching terminals 112a ₂ and tap terminal 114a ₁ ~114a ₅ of U-phase selective, connection switching member 113b is, V-phase tap switch terminal 112b ₂ and the tap terminals 114b _{1 to} 114b ₅ are selectively switched, and the connection switching member 113c switches the connection between the W-phase tap switching terminal 112c ₂ and the tap terminals 114c _{1 to} 114c _5. Selectively switch. FIG. 2 shows a state in which the U-phase primary mold coil 1a, the V-phase primary mold coil 1b, and the W-phase primary mold coil 1c are Δ-connected. The tap terminal 114a ₃ connected to the U-phase primary mold coil 1a is connected to the tap switching terminal 112a ₂ by the connection switching member 113a, and the tap switching terminal connected to the tap switching terminal 112a _2. 112a ₁ is connected to the winding start side coil terminal 111b of the V-phase primary mold coil 1b by the cable 4b, and the tap terminal 114c ₃ connected to the W-phase primary side mold coil 1c is used for connection switching. is connected to terminal 112c ₂ switching taps by member 113c, the tap switching terminal terminal 112c ₂ with the connected tap changer 112c ₁ is via a cable 4a, the winding start side coil of the primary side molded coil 1a of U-phase It is connected to the terminal 111a. The cable 4a is supported by the support member 5ab at the intersection with the cable 4b, supported by the support member 5ac at the intersection with the cable 4c, and the cable 4b is supported by the support member 5ab at the intersection with the cable 4a. The cable 4c is supported by the support member 5ac at the intersection with the cable 4a. Conversely, the support member 5ab is held at the crossing position of the two cables by the cables 4a and 4b, and the support member 5ac is held at the crossing position of the two cables by the cables 4a and 4c.

FIG. 3 is an explanatory diagram of a connection cable of the tap switching connection portion in the three-phase mold transformer 100 of FIG. FIG. 3 shows the case of the cable 4a. The same applies to the cables 4b and 4c. (A) is a top view of the cable 4a, (b) is a side view, and (c) is a front view.
In FIG. 3, 4a ₁ is the cable body of the cable 4a, 4a ₂ , 4a ₃ are crimp terminals attached to both sides of the cable body 4a ₁ , D ₁ is the outer diameter of the cable body 4a ₁ , and D ₂ the width dimension of the crimp terminal 4a _{2, D 3} is the width dimension of the crimp terminal 4a _3. For example, Cable body 4a _1, the outer diameter _{D 1} is composed of a cross-linked polyethylene cable of about 12 to 13 × ^{10 -3} m, crimp terminal _4a 2, 4a ₃ is about each width dimension _D 2, _{D 3} It is comprised with a 15-16 * 10 < ^-3 > m copper plate.

FIG. 4 is a configuration diagram of the support member 5ab for supporting the cable at the tap switching connection portion of the three-phase mold transformer 100 of FIG. The same applies to the support member 5ac. FIG. 4 shows a case where the cross section of the through hole is substantially trapezoidal.
In FIG. 4, the support member 5ab is configured as a rectangular parallelepiped having side lengths W ₁ , W ₂ , and H. 51 is a through-hole formed perpendicular to the surface plane and the plane hole and supports the cable 4a through the hole. 52 is a through-hole formed perpendicular to the surface plane and the surface plane and supported through the cable 4b. is there. Through holes 51 and 52, hole section is substantially trapezoidal in together, crossing the solid with each other, and the vertex side of the symbolic trapezoid you are opposed to each other. The through hole 51 has a width dimension w ₁ and a height dimension h ₁ , and the through hole 52 has a width dimension w ₂ and a height dimension h ₂ . d ₃ is the distance between the through holes 51 and 52. For example, the support member 5ab is formed of a silicon rubber material by molding or the like, and W ₁ = 35 × 10 ⁻³ m, W ₂ = 35 × 10 ⁻³ m, H = 59 × 10 ⁻³ m, w ₁ = W ₂ = 25 × 10 ⁻³ m, h ₁ = h ₂ = 12 to 13 × 10 ⁻³ m, d ₃ = 25 × 10 ⁻³ m, d ₁ = d ₂ = 4 to 5 × 10 ⁻³ m And

FIG. 5 is a diagram showing a state when the cable 4a is inserted into the through hole 51 of the support member 5ab of FIG. The state when the cable 4b is inserted into the through hole 52 and the state when the cable 4a and the cable 4c are respectively inserted into the two through holes of the support member 5ac are the same as in the case of FIG. .
As shown in FIG. 5, the cable 4 a is inserted into the through hole 51 having a substantially trapezoidal hole cross section from the crimp terminal 4 a ₂ or the crimp terminal 4 a ₃ side. Since the through hole 51 has a substantially trapezoidal bottom side width dimension in the hole cross section larger than the width dimensions D ₂ and D _{3 of the} crimp terminals 4a ₂ and 4a ₃ , the cable 4a can be easily inserted. is there. In the through hole 51, the outer peripheral surface of the cable main body 4 a ₁ of the cable 4 a comes into contact with the inner surface in the p region and the q region of the inner surface of the through hole 51. In particular, in the q region, the outer peripheral surface of the cable main body 4 a ₁ is in contact with the curved surface of the inner surface of the through hole 51. By being in this contact state, the cable body 4a ₁ is supported in a state of being restrained in the through hole 51 by the support member 5ab.

FIG. 6 is a diagram showing the relationship between the cross-sectional shape of the through holes of the support members 5ab and 5ac and the cable support state. (A) is a case where the cross-sectional shape of the through hole is substantially trapezoidal, (b) is a case where the cross-sectional shape is trapezoidal, and (c) is a case where the cross-sectional shape is rectangular.
6, the case of (a), as also described in FIG. 5, a state where the outer circumferential surface of the cable body portion 4a ₁ is in contact with the inner surface in the p region and q region of the inner surface of the through hole 51. When energized cables 4a, cable 4b in the state, electric field strength generated around the cable 4a is gap portion of the A ₁ parts and A ₂ parts adjacent to q area due to the air layer of the air gap portion And become the maximum. In the case of (b), the outer peripheral surface of the cable body 4a ₁ is in contact with the inner surface in the p region, r ₁ region, and r ₂ region of the inner surface of the through hole 51. Cable 4a in the state, when it is energized cable 4b, the strength of the electric field generated around the cable 4a is gap portion of the B ₂ parts adjacent to B ₁ parts and r ₂ regions adjacent to r ₁ region said It becomes the maximum due to the air layer in the gap. In the case of (c), the outer peripheral surface of the cable body 4 a ₁ is in contact with the inner surface at the p region and the s region of the inner surface of the through hole 51. Is energized cable 4a, the cable 4b in the state, the intensity of the electric field generated around the cable 4a is gap portion of the C ₁ parts of C ₂ parts adjacent to the s-domain is due to the air layer of the air gap portion And become the maximum.

As a result of the simulation, for example, the support member 5ab is made of a silicon rubber material, and the maximum widths w ₁ and w ₂ of the _two through holes are w ₁ = w ₂ = 25 × 10 ⁻³ m, and between the through holes If the distance _{d 3,} using those with ^{d 3 = 25 × 10 -3 m} , the applied voltage was 6600V between cables 4a, 4b, the case of FIG. 6 (a), _{a 1} parts, _{a 2} The maximum electric field intensity Emax generated in the part is about 0.17 × 10 ⁶ V / m, and in the case of (b), the maximum electric field intensity Emax generated in the B ₁ part and the B ₂ part is about 0.25 × 10 ⁶ V / m. In the case of m and (c), the maximum electric field intensity Emax generated in the C ₁ part and the C ₂ part is about 0.38 × 10 ⁶ V / m.

FIG. 7 is a diagram showing the relationship between the hole cross-sectional shape of the through hole of the support member and the maximum electric field strength Emax generated in the through hole portion.
The safe maximum electric field intensity Emax that does not generate corona discharge is considered to be desirably 0.25 × 10 ⁶ V / m or less. For this purpose, as is apparent from FIG. 7, the hole cross-sectional shape of the through hole of the support member is preferably trapezoidal or substantially trapezoidal. Further, by setting the distance d ₃ between the two through holes to 25 × 10 ⁻³ m or more, the maximum electric field strength Emax can be set to 0.25 × 10 ⁶ V / m or less. Making the hole cross-sectional shape of the through hole trapezoidal or substantially trapezoidal also makes it possible to support the cable in a restrained state and enhance the support function.

  According to the first embodiment of the present invention, in the molded transformer 100, the winding start side coil terminal of the primary side coil and the tap switching terminal are reliably and safely connected with a simple and low-cost configuration. can do. In particular, the cables 4a, 4b, and 4c can be reliably and safely supported by the support members 5ab and 5ac having a simple and low-cost configuration. The cables 4a, 4b, and 4c can also be a low-cost cable having a general structure.

FIG. 8 is an explanatory diagram of the second embodiment of the present invention, and shows a configuration example of a single-phase mold transformer.
In FIG. 8, 101 is a single-phase mold transformer, 1d ₁ and 1d ₂ are primary-side mold coils connected in parallel to each other, 11d ₁ and 111d ₁ are winding start side coil terminals of the primary-side mold coil 1d ₁ , 11d ₂ , 111d ₂ are winding start side coil terminals of the primary side mold coil 1d ₂ , 3d is inserted into each of the mold coils 1d ₁ , 1d ₂ , and a core forming an annular magnetic circuit of the mold transformer 101, 112d ₁₁ and 112d ₁₂ are tap switching terminals of the primary side mold coil 1d ₁ , 112d ₂₁ and 112d ₂₂ are tap switching terminals of the primary side mold coil 1d ₂ , and 114d _{11 to} 114d ₁₅ are primary sides. tap terminal of molded coil 1d _1, 114d 21 ~114d ₂₅ is the primary mold tap terminal of the coil 1d _2, 11 d ₁ is connected switching member for switching the connection between the terminal 112d ₁₂ and the tap terminal _114d 11 _{~114d 15} switching tap, 113d ₂ is the terminal 112d ₂₂ and the tap terminal _114d 21 _{~114d 25} for switching taps It is the member for connection switching which switches the connection between.

Further, 4d ₁ includes a primary winding start-side coil terminals 111d ₁ of molded coil 1d _1, cable connecting between the primary mold tap switching terminal 112d ₂₁ of the coil 1d _2, 4d ₂ is 1 a winding start-side coil terminals 111d ₂ of the following side mold coil 1d _2, cable for connecting between the primary mold tap switching terminal 112d ₁₁ of the coil 1d _1, 5d are both said cable _4d 1, 4d ₂ The supporting members 21d ₁ and 21d ₃ that support the crossing portions of the cables are connected to the winding start ends of the windings of the secondary side molded coil (not shown) when the two secondary side coils are connected in series. Secondary terminal 21d ₂ is a secondary neutral point terminal to which the winding end of the secondary coil winding is connected, 20d is a transformer upper clamp, 30d is a transformer lower clamp, 50d Is A base member for supporting the entire single-phase mold transformer 101.

The support member 5d has two through-holes that cross each other in a three-dimensional shape having a trapezoidal or substantially trapezoidal hole cross section. Support member 5d is passed through the cable _4d 1, 4d ₂ into the two through holes, for supporting the cable _4d 1, 4d ₂ at the intersection of the two cables. Basically, the support member 5d has the same configuration as the support members 5ab and 5ac in the first embodiment, and the cables 4d ₁ and 4d ₂ are the same as the cables 4a, 4b and 4c in the first embodiment. It is assumed that the configuration is the same.

  Also according to the second embodiment of the present invention, in the single-phase mold transformer 101, a simple and low-cost configuration between the winding start side coil terminal of the primary side coil and the tap switching terminal is ensured and safe. Can be connected to.

1 is a configuration example diagram of a three-phase mold transformer as a first embodiment of the present invention. FIG. FIG. 2 is a connection diagram of a three-phase molded coil in the three-phase mold transformer of FIG. 1. It is explanatory drawing of the cable for connection of the connection part for tap switching in the three-phase mold transformer of FIG. It is a block diagram of the supporting member for cable support in the connection part for tap switching of the three-phase mold transformer of FIG. It is a figure which shows a state when the cable for connection is inserted in the through-hole of the supporting member of FIG. It is explanatory drawing of the relationship between the cross-sectional shape of the through-hole of the supporting member of FIG. 4, and a cable support state. It is a figure which shows the relationship between the hole cross-sectional shape of the through-hole of a supporting member, and the maximum electric field strength which generate | occur | produces in this through-hole part. It is explanatory drawing of the 2nd Example of this invention. It is explanatory drawing of a prior art.

Explanation of symbols

_{1a, 1b, 1c, 1d 1} , 1d 2 ... 1 primary molded coil,
_{11a, 111a, 11b, 111b,} 11c, 111c, 11d 1, 111d 1, 11d 2, 111d 2 ... winding start-side coil terminals,
3, 3d ... core,
112a ₁ , 112a ₂ , 112b ₁ , 112b ₂ , 112c ₁ , 112c ₂ , 112d ₁₁ , 112d ₁₂ , 112d ₂₁ , 112d ₂₂ ... Tap switching terminal,
_{114a 1 ~114a 5, 114b 1 ~114b} 5, 114c 1 ~114c 5, 114d 11 ~114d 15, 114d 21 ~114d 25 ... tap terminal,
113a, 113b, 113c, 113d ₁ , 113d ₂ ... connection switching member,
_{4a, 4b, 4c, 4d 1} , 4d 2 ... cable,
5ab, 5ac, 5d ... support member,
21a, 21b, 21c, 21d ₁ , 21d ₂ , 21d ₃ ... secondary terminal,
20, 20d ... Transformer upper clamp,
30, 30d ... Transformer lower clamp,
50, 50d ... Base member 100 ... Three-phase mold transformer,
101: Single-phase mold transformer.

Claims (3)

A molded transformer having a single-phase or multiple-phase molded coil,
Crossing each other outside the mold coil, and between the winding start side coil terminal of the primary phase primary coil of the plurality of phases and the tap switching terminal of the secondary phase primary coil; Connection between the tap switching terminal of the primary coil of the first phase and the winding start side coil terminal of the primary coil of the second phase, or the first primary of the single-phase molded coil Between the winding start side coil terminal of the side coil and the tap switching terminal of the second primary side coil connected in parallel with the first primary side coil and for the tap switching of the first primary side coil A plurality of cables connecting between the terminal and the winding start side coil terminal of the second primary side coil;
A support member that supports the plurality of cables at an intersection of the plurality of cables;
With
The support member has two through-holes having a trapezoidal or substantially trapezoidal hole cross section and intersecting each other in a three-dimensional manner, and the apex sides of the trapezoidal or substantially trapezoidal faces each other. A molded transformer, characterized in that the structure is supported by a part.   2. The molded transformer according to claim 1, wherein each of the plurality of cables includes a crimp terminal having a width dimension larger than an outer diameter of the cable at one or both ends thereof. 2. The molded transformer according to claim 1, wherein the support member has a configuration in which a distance at the intersecting portion of the two through holes is 25 × 10 ⁻³ m or more .

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