JP4744186B2 - Gap transformer manufacturing method and gap transformer - Google Patents

Description

  The present invention relates to a method for manufacturing a transformer with a gap having a substantially C-shaped core partially formed with a gap, and a transformer with a gap.

  A transformer with a gap having a substantially C-shaped core partially formed with a gap is described in, for example, Patent Document 1.

Japanese Patent Laying-Open No. 2003-31422 (FIG. 8 and its description)

  For example, a transformer with a gap used in a relay or the like is a small one having an outer diameter of about 4 cm, and the primary winding is wound about one turn around a core with a gap provided with a secondary winding. In addition, this type of gap transformer includes a split-type transformer with a gap and a toroidal type transformer (a core has a donut shape (substantially C-shaped because there is a gap)). Then, it is difficult to adjust the gap interval at the time of generation with a gap, and the machining cost increases because the machining is performed at two places. At that time, the toroidal type gap transformer may be used. However, when the number of primary windings is small, the output value of the secondary winding varies among individuals (that is, the output value of the secondary winding). Is slightly different for each product). The variation in the output value of the secondary winding among the individual is larger in the transformer with gap than in the conventional R transformer.

  In addition, although the thing of patent document 1 is a toroidal type transformer with a gap, as shown in FIG. 8, only the secondary winding is shown, and the primary winding is not shown. In addition, there is no description about the variation in the output value of the secondary winding among the individual or countermeasures.

  The present invention has been made in view of the above circumstances, and in a transformer with a gap, increases the accuracy of the output of the secondary winding and suppresses variations in secondary winding output among individual transformers with a gap. It is intended.

The method of manufacturing a transformer with a gap according to the present invention extends from one end having a surface facing the gap to the other end having a surface facing the gap of a substantially C-shaped core having a gap formed in part. After winding the secondary winding at substantially equal intervals, the core and the secondary winding are covered with an insulating material so that the core, the gap, and the secondary winding are not visible, and the core is covered with the core. the secondary winding is fixed, the method of manufacturing a transformer with a gap winding a primary conductor over the insulating material to the core,
At least one of the position of the gap of the insulating material and the position substantially diametrically opposite to the gap of the insulating material is subjected to position indication for marking the position,
Using the position indication as a guide, the primary conductor is wound from above the insulating material at a position substantially opposite to the gap of the core,
The primary conductor is fixed at a position approximately opposite to the gap of the core provided with the secondary winding and the insulating material.
This is a method for manufacturing a transformer with a gap.
Further, according to the method of manufacturing a transformer with a gap according to the present invention, a substantially C-shaped core having a gap formed in a part thereof, the other end having a surface facing the gap from the one end having the surface facing the gap. The core and the secondary winding are covered with an insulating material so that the core, the gap, and the secondary winding are not visible. A manufacturing method of a transformer with a gap in which the secondary winding is fixed to the core and a primary conductor is wound around the core from above the insulating material,
Positions that serve as adjustment guides at predetermined intervals in the circumferential direction of the core on the insulating material on both sides of the insulating material at the center of at least one of the position of the gap and the position opposite to the gap of the insulating material. Display,
Using the position indication as a guide, the primary conductor is wound from above the insulating material at a position substantially opposite to the gap of the core,
The primary conductor is fixed at a position approximately opposite to the gap of the core provided with the secondary winding and the insulating material.
This is a method for manufacturing a transformer with a gap.
Further, according to the method of manufacturing a transformer with a gap according to the present invention, a substantially C-shaped core having a gap formed in a part thereof, the other end having a surface facing the gap from the one end having the surface facing the gap. The core and the secondary winding are covered with an insulating material so that the core, the gap, and the secondary winding are not visible. A manufacturing method of a transformer with a gap in which the secondary winding is fixed to the core and a primary conductor is wound around the core from above the insulating material,
At least one of the position of the gap of the insulating material and the position opposite to the gap of the insulating material is subjected to a position indication that marks the position,
The primary conductor is shifted from a position opposite to the gap of the core to a position where a predetermined output value is obtained using the position indication as a guide, and then the shifted primary conductor is moved to the secondary winding and Fix to the core with the insulating material
This is a method for manufacturing a transformer with a gap.
Further, according to the method of manufacturing a transformer with a gap according to the present invention, a substantially C-shaped core having a gap formed in a part thereof, the other end having a surface facing the gap from the one end having the surface facing the gap. The core and the secondary winding are covered with an insulating material so that the core, the gap, and the secondary winding are not visible. A manufacturing method of a transformer with a gap in which the secondary winding is fixed to the core and a primary conductor is wound around the core from above the insulating material,
Positions that serve as adjustment guides at predetermined intervals in the circumferential direction of the core on the insulating material on both sides of the insulating material at the center of at least one of the position of the gap and the position opposite to the gap of the insulating material. Display,
The primary conductor is shifted from a position opposite to the gap of the core to a position where a predetermined output value is obtained using the position indication as a guide, and then the shifted primary conductor is moved to the secondary winding and Fix to the core with the insulating material
This is a method for manufacturing a transformer with a gap.
Further, according to the method of manufacturing a transformer with a gap according to the present invention, a substantially C-shaped core having a gap formed in a part thereof, the other end having a surface facing the gap from the one end having the surface facing the gap. The core and the secondary winding are covered with an insulating material so that the core, the gap, and the secondary winding are not visible. A manufacturing method of a transformer with a gap in which the secondary winding is fixed to the core and a primary conductor is wound around the core from above the insulating material,
Centering on at least one of the position of the gap of the insulating material and the position opposite to the gap of the insulating material, the insulating material on both sides thereof at a predetermined interval in the circumferential direction of the core,
A position display is provided as an adjustment guide.
After winding the primary conductor from above the insulating material to a position shifted by an arbitrary amount from the position opposite to the gap of the core, using the position indication as a guideline, the primary conductor is wound on the secondary winding. Fixed to the core to which the wire and the insulating material are applied,
Get arbitrary output from the secondary winding
This is a method for manufacturing a transformer with a gap.

The transformer with a gap according to the present invention includes a substantially C-shaped core having a gap formed in a part thereof, and an end of the core having a surface facing the gap to a second end of the core having a surface facing the gap. A secondary winding wound at substantially equal intervals, an insulating material covering the core and the secondary winding so that the core, the gap, and the secondary winding cannot be seen, and the insulation on the core A transformer with a gap provided with a primary conductor wound from above the material,
A position indication that is applied to at least one of the position of the gap of the insulating material and the position substantially diametrically opposite to the gap of the insulating material;
The primary conductor is wound from above the insulating material at a position substantially opposite to the gap of the core, using the position indication as a guideline,
The primary conductor is fixed at a position substantially opposite to the gap of the core to which the secondary winding and the insulating material are applied.
This is a transformer with a gap.
Further, a transformer with a gap according to the present invention includes a substantially C-shaped core having a gap formed in a part thereof, and one end of the core having a surface facing the gap to the other end having a surface facing the gap. A secondary winding wound at substantially equal intervals over the core, the core and the secondary winding covering the core, the gap and the secondary winding so that the core, the gap and the secondary winding cannot be seen, and the core A gap transformer including a primary conductor wound from above the insulating material,
An adjustment guide provided at a predetermined interval in the circumferential direction of the core on at least one of the position of the gap of the insulating material and at least one of the positions opposite to the gap of the insulating material. Has a position indication
The primary conductor is wound around the primary conductor from above the insulating material at a position substantially opposite to the gap of the core, using the position indication as a guideline,
The primary conductor is fixed at a position substantially opposite to the gap of the core to which the secondary winding and the insulating material are applied.
This is a transformer with a gap.
Further, a transformer with a gap according to the present invention includes a substantially C-shaped core having a gap formed in a part thereof, and one end of the core having a surface facing the gap to the other end having a surface facing the gap. A secondary winding wound at substantially equal intervals over the core, the core and the secondary winding covering the core, the gap and the secondary winding so that the core, the gap and the secondary winding cannot be seen, and the core A gap transformer including a primary conductor wound from above the insulating material,
A position indication that is applied to at least one of the position of the gap of the insulating material and the position opposite to the gap of the insulating material and marks the position;
The primary conductor is shifted from a position directly opposite to the gap of the core to a position where a predetermined output value is obtained, using the position indication as a guide, and the shifted primary conductor is connected to the secondary winding and It is fixed to the core to which the insulating material is applied
This is a transformer with a gap.
The transformer with a gap according to the present invention is substantially C-shaped with a gap formed in part.
A core, a secondary winding wound at substantially equal intervals from one end having a surface facing the gap to the other end having a surface facing the gap, the core and the secondary winding An insulating material that covers a wire so that the core, the gap, and the secondary winding cannot be seen; and a transformer with a gap that includes a primary conductor wound around the insulating material on the core,
An adjustment guide provided at a predetermined interval in the circumferential direction of the core on at least one of the position of the gap of the insulating material and at least one of the positions opposite to the gap of the insulating material. Has a position indication
The primary conductor is shifted from a position directly opposite to the gap of the core to a position where a predetermined output value is obtained, using the position indication as a guide, and the shifted primary conductor is connected to the secondary winding and A gap transformer, which is fixed to the core provided with the insulating material .
Further, a transformer with a gap according to the present invention includes a substantially C-shaped core having a gap formed in a part thereof, and one end of the core having a surface facing the gap to the other end having a surface facing the gap. A secondary winding wound at substantially equal intervals over the core, the core and the secondary winding covering the core, the gap and the secondary winding so that the core, the gap and the secondary winding cannot be seen, and the core A gap transformer including a primary conductor wound from above the insulating material,
An adjustment guide provided at a predetermined interval in the circumferential direction of the core on at least one of the position of the gap of the insulating material and at least one of the positions opposite to the gap of the insulating material. Has a position indication
The primary conductor is wound at a position shifted by an arbitrary amount from the position opposite to the gap of the core, using the position indication as a guide, and the primary conductor is applied with the secondary winding and the insulating material. Fixed to the core,
Get arbitrary output from the secondary winding
This is a transformer with a gap.

According to the present invention, the secondary winding is substantially equalized from one end portion having a surface facing the gap to the other end portion having the surface facing the gap of a substantially C-shaped core partially formed with a gap. After winding at an interval, the core and the secondary winding are covered with an insulating material so that the core, the gap, and the secondary winding are not visible, and the secondary winding is fixed to the core. the method of manufacturing a transformer with a gap winding a primary conductor over the insulating material to the core, at least one of said gap and substantially diametrically opposite positions of the position and the insulation of the gap of the insulating material, The position indication which gives the said position is given, the said primary conductor is wound from the said insulating material on the position of the said board | substrate at the position of the said diametrically opposite from the said position indication, and the said primary conductor is said 2 The coil with the next winding and the insulating material And a gap-shaped transformer manufacturing method characterized in that the gap is formed in a part of the substantially C-shaped core having a part facing the gap. After winding the secondary winding at substantially equal intervals over the other end having the surface facing the gap from the portion, the core and the secondary winding are connected to the core, the gap, and the secondary winding. A method of manufacturing a transformer with a gap in which the secondary winding is fixed to the core and covered with an insulating material so that the core is not visible, and a primary conductor is wound on the core from above the insulating material. A position indication serving as an adjustment guide is provided at a predetermined interval in the circumferential direction of the core on at least one of the position of the gap and the position of the insulating material opposite to the gap. , The location table As a guideline, the primary conductor is wound from above the insulating material at a position approximately opposite to the gap of the core, and the primary conductor is wound on the core on which the secondary winding and the insulating material are applied. At a position approximately opposite to the gap
A method of manufacturing a transformer with a gap, characterized in that a surface facing the gap is formed from one end portion having a surface facing the gap of a substantially C-shaped core partially formed with a gap. After the secondary winding is wound at almost equal intervals over the other end of the core, the core and the secondary winding are made of an insulating material so that the core, the gap, and the secondary winding cannot be seen. A method of manufacturing a transformer with a gap, covering and fixing the secondary winding to the core and winding a primary conductor on the core from above the insulating material, the position of the gap of the insulating material and the insulating material A position indication indicating the position is applied to at least one of the positions opposite to the gap, and the primary conductor is output from a position opposite to the gap of the core with a predetermined output value, using the position indication as a guide. Shift to the position to become Then, the shifted primary conductor is fixed to the core on which the secondary winding and the insulating material are applied, and a gap is partially formed in the method. After the secondary winding is wound at substantially equal intervals from the one end portion having the surface facing the gap of the formed substantially C-shaped core to the other end portion having the surface facing the gap, the core The secondary winding is covered with an insulating material so that the core, the gap, and the secondary winding are not visible, and the secondary winding is fixed to the core. A method of manufacturing a transformer with a gap around which a primary conductor is wound, wherein at least one of the position of the gap of the insulating material and the position of the insulating material opposite to the gap is centered on the insulating material on both sides thereof, At predetermined intervals in the circumferential direction of the core A position indication serving as an adjustment guide is provided, and the primary conductor is shifted from a position opposite to the gap of the core to a position where a predetermined output value is obtained, using the position indication as a guide, and then the shifted primary. A method of manufacturing a transformer with a gap, wherein a conductor is fixed to the core provided with the secondary winding and the insulating material, and a substantially C-shaped core with a gap formed in part After winding the secondary winding at substantially equal intervals from one end having the surface facing the gap to the other end having the surface facing the gap, the core and the secondary winding are A transformer with a gap in which a core, the gap, and the secondary winding are covered with an insulating material so that the secondary winding is fixed to the core, and a primary conductor is wound on the core from above the insulating material. Before the insulation material The position of the adjustment guide is provided at a predetermined interval in the circumferential direction of the core on the insulating material on both sides of the gap and the position of the insulating material opposite to the gap. After winding the primary conductor from above the insulating material to a position shifted by an arbitrary amount from the position opposite to the gap of the core, using the position indication as a guideline, the primary conductor is wound on the secondary winding. Since it is a method of manufacturing a transformer with a gap, which is fixed to the core on which the wire and the insulating material are applied, and obtains an arbitrary output from the secondary winding, the accuracy of the output of the secondary winding is As a result, it is possible to suppress variations in secondary winding output among transformers with gaps.
The present invention also includes a substantially C-shaped core having a gap formed in a part thereof, and substantially the same from one end portion having a surface facing the gap to the other end portion having the surface facing the gap. A secondary winding wound at intervals, an insulating material covering the core and the secondary winding so that the core, the gap, and the secondary winding cannot be seen; A transformer with a gap provided with a primary conductor wound from above, wherein the position indication is applied to at least one of the position of the gap of the insulating material and the position substantially opposite to the gap of the insulating material. The primary conductor is wound from above the insulating material at a position approximately opposite to the gap of the core with the position indication as a guide, and the primary conductor is the secondary winding and The core of the core provided with the insulating material; A transformer with a gap, characterized by being fixed at a position approximately opposite to the cap, and a substantially C-shaped core partially formed with a gap, and one end having a surface facing the gap of the core A secondary winding wound around the other end having a surface facing the gap from the portion, the core and the secondary winding, the core, the gap, and the secondary winding. An insulating material that covers the insulating material so as not to be seen, and a transformer with a gap provided on the core and a primary conductor wound from above the insulating material, the gap position of the insulating material and the gap of the insulating material The insulating material on both sides centering on at least one of the diametrically opposite positions, is provided at a predetermined interval in the circumferential direction of the core, and has a position indication serving as an adjustment guide, and the primary conductor Using the display as a guide , The gap of the core
The primary conductor is wound from above the insulating material at a position approximately opposite to the core, and the primary conductor is positioned at a position approximately opposite to the gap of the core to which the secondary winding and the insulating material are applied. A transformer with a gap, characterized by being fixed, and a substantially C-shaped core having a gap formed in part, and facing the gap from one end of the core having a surface facing the gap. Insulation that covers the secondary winding, the core, and the secondary winding wound at substantially equal intervals over the other end having a surface so that the core, the gap, and the secondary winding cannot be seen. And a gap-equipped transformer comprising a primary conductor wound around the insulating material on the core, wherein at least one of a position of the gap of the insulating material and a position opposite to the gap of the insulating material The position is marked The primary conductor is shifted to a position where a predetermined output value is obtained from a position opposite to the gap of the core with the position indication as a guide, and the shifted primary conductor is A transformer with a gap, characterized by being fixed to the core provided with the secondary winding and the insulating material, and a substantially C-shaped core having a gap formed in a part thereof, The secondary winding wound around the gap from one end having the surface facing the gap to the other end having the surface facing the gap, the core, and the secondary winding are connected to the core. An insulating material that covers the gap and the secondary winding so as not to be visible, and a transformer with a gap that includes a primary conductor wound around the insulating material on the core, the gap of the insulating material And the position of the insulation Centered on at least one of the positions opposite to the top, the insulating material on both sides thereof is provided at a predetermined interval in the circumferential direction of the core, and has a position display serving as an adjustment guide, and the primary conductor is Using the position indication as a guide, the position is shifted from a position opposite to the gap of the core to a position where a predetermined output value is obtained, and the shifted primary conductor is applied with the secondary winding and the insulating material. A gap-shaped transformer fixed to the core, a substantially C-shaped core partially formed with a gap, and an end portion of the core having a surface facing the gap. The secondary winding wound around the other end portion having the surface facing the gap, the core, and the secondary winding cannot be seen from the core, the gap, and the secondary winding. So as to cover the insulation and the core in front A transformer with a gap provided with a primary conductor wound from above the insulating material, wherein at least one of the position of the gap of the insulating material and the position of the insulating material opposite to the gap is centered on both sides thereof The insulating material is provided at a predetermined interval in the circumferential direction of the core and has a position display serving as an adjustment guide, and the primary conductor is directly opposite to the gap of the core with the position display as a guide. The primary conductor is fixed to the core on which the secondary winding and the insulating material are applied, and an arbitrary output is obtained from the secondary winding. Since the transformer with a gap is a characteristic, the output accuracy of the secondary winding is improved, and there is an effect that variations in the output of the secondary winding among the individual transformers with a gap can be suppressed.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to FIGS. 1 is a connection diagram showing an example of use of a transformer with a gap, FIG. 2 is a front view showing a transformer with a gap, and FIG. 3 is a circumferential position of a primary conductor of the transformer with a gap and an output value (voltage) of a secondary winding. ) Is a diagram showing the output value (voltage) on the vertical axis when the center of the horizontal axis is the gap, and (b) is the position opposite to the gap on the center of the horizontal axis. It is a figure which shows the output value (voltage) at the time of having performed on the vertical axis | shaft. In addition, in each figure, the same code | symbol shows the same part.

  In FIG. 1, a transformer 1 with a gap is built in a relay 4 that inputs a secondary side current of a CT (current transformer) 3 that detects a current of a power system 2, for example, and 2 of the CT (current transformer) 3. The secondary current is taken into the primary conductor 101 via the relay input terminal 41, and the secondary winding output 102 is taken into the relay function unit 42.

  As shown in FIG. 2, the gap transformer 1 includes a substantially C-shaped core 103 having a gap 103g formed in a part thereof, and an end 103A having a surface 103SA of the core 103 facing the gap 103g. To the other end 103B having the surface 103SB facing the gap 103g, and the secondary winding 104 wound at substantially equal intervals in the circumferential direction, and the insulating material covering the core 103 and the secondary winding 104 105, a primary conductor 101 wound from above the insulating material 105 at a position 106 substantially opposite to the gap 103g of the core 103, and a center of the insulating material 105 covering the core 103 and the secondary winding 104 And an adhesive 107 for fixing the primary conductor 101 to the insulating material 105 (that is, fixing the core 103 via the insulating material 105), and the gap 103g of the insulating material 105. A configuration in which a position indicator 108 applied to the surface of the position.

  Next, a method for manufacturing the gap transformer 1 having the above-described configuration will be described below. That is, the other end having the surface 103SB facing the gap 103g from the one end portion 103A having the surface 103SA facing the gap 103g of the substantially C-shaped core 103 in which the gap 103g is formed in part. After the secondary winding 104 is wound at substantially equal intervals as shown in FIG. 2 over the portion 103B, the core 103 and the secondary winding 104 are covered with the insulating material 105 and the core 103, the secondary winding 104 is fixed, the primary conductor 101 is wound from above the insulating material 105 at a position 106 substantially opposite to the gap 103g of the core 103, and then the primary conductor 101 is tested. A current is passed, and the output (taken out as a voltage) of the secondary winding 104 is measured. If the output is a predetermined output, the primary conductor 101 is bonded to the insulating material 105 at that position by an adhesive (not shown). ) The adhesive 107 is filled in the central through hole of the insulating material 105, and the primary conductor 101 is more firmly fixed to the core 103 via the insulating material 105 by the adhesive 107, thereby providing the gap. A transformer 1 is manufactured.

  In FIG. 2, the core 103, the gap 103g, and the secondary winding 104 are shown as if the core 103, the gap 103g, and the secondary winding 104 are visible so that the internal structure of the gap transformer 1 can be seen. Then, since the core 103, the gap 103g, and the secondary winding 104 are covered with the insulating material 105 and cannot be seen, for example, the casting mold (not shown) of the insulating material 105 A slight protrusion or depression is provided at a position corresponding to the gap 103g, and the insulating material 105 is injected after the core 103 around which the secondary winding 104 is wound is placed in the casting mold (not shown). As a result, the position indication (dent or protrusion) 108 is formed on the outer surface of the insulating material 105 corresponding to the gap 103g. The position indication 108 is used as a guide and is 180 degrees opposite to the position indication 108. The primary conductor 101 is disposed at the position (the opposite position). As described above, a transformer with a gap (gap current transformer) used for a relay or the like is a small one having an outer diameter of about 4 cm. The conductor 101 can be easily disposed at a position substantially opposite to the gap 103g.

  In FIG. 2, the circumferential center point of the gap 103g is represented by P1, and a plurality of points equidistant from the center point in the circumferential direction are represented by P2, P3, P4, P5, P6, P7, P8, respectively. It is represented by P9, P10, P11, P12.

  Next, FIG. 3 shows an example of the relationship between the position in the circumferential direction of the primary conductor 101 of the transformer 1 with gap and the output value (voltage) of the secondary winding 104 obtained through tests during development. Explained.

  As described above, FIG. 3A shows the output value (voltage) on the vertical axis when the center of the horizontal axis is the gap 103g, and FIG. 3B shows the gap 103g on the center of the horizontal axis. It is a figure which shows the output value (voltage) on the vertical axis | shaft at the time of the opposite position 106, and arrange | positions the said primary conductor 101 in P1 in any figure of Fig.3 (a) and FIG.3 (b). When the test current is supplied to the primary conductor 101, the output voltage of the secondary winding 104 is V1, the primary conductor 101 is disposed at P2, and the test current is supplied to the primary conductor 101. The output voltage of the secondary winding 104 is V2, and similarly, the output voltage when arranged at P3 is V3, V4 for P4, V5 for P5, V6 for P6, V7 for P7, V8 for P8. , P9 is V9, P10 is V10, P11 is V11, P12 is V12 It became.

From these FIG. 3 (a) and FIG. 3 (b), it can be said that there are the following phenomena 1 to 4.
[Phenomenon 1] When the primary conductor 101 is disposed corresponding to the gap 103g, the output voltage V1 of the secondary winding 104 is the smallest.
[Phenomenon 2] The output voltage V7 of the secondary winding 104 is the highest when the primary conductor 101 is disposed corresponding to the position (an opposite position) 180 degrees opposite to the gap 103g.
[Phenomenon 3] Output voltage V6 of the secondary winding 104 when the primary conductor 101 is disposed at a position P6 or P8 adjacent to the gap 103g at a position 180 ° opposite (a position opposite to the normal) P7. Alternatively, V8 is substantially the same as the output voltage V7 of the secondary winding 104 when the primary conductor 101 is disposed corresponding to a position 180 degrees opposite to the gap 103g (a position opposite to the front).
[Phenomenon 4] At the position P7 opposite to the gap 103g (the opposite position) P7 and the other positions P2, P3, P4 and P5 except for the adjacent P6 and P8, the output voltage of the secondary winding 104 is Different values V2, V3, V4 and V5. Similarly, the output voltage of the secondary winding 104 is different at positions P9, P10, P11, and P12 except for the position P7 opposite to the gap 103g (the opposite position) P7 and its adjacent P6, P8. The values V9, V10, V11, and V12 are obtained.

  Therefore, if the first to fourth phenomena are used, the primary conductor 101 is wound around the position 106 (P7, P6, P8) substantially opposite to the gap 103g of the core 103 in the manufacturing process. Even when the position of 101 is slightly shifted, a substantially desired secondary winding output can be obtained. That is, the accuracy of the secondary winding output is improved. In other words, when a large number of transformers with gaps are manufactured, the secondary winding outputs of the respective transformers with gaps are substantially the same, and variations in secondary winding output among individual transformers with gaps can be suppressed. it can.

  Further, if the primary conductor 101 is fixed at a position 106 substantially opposite to the gap 103g of the core 103 on which the secondary winding 104 and the insulating material 105 are applied, During installation, the position of the primary conductor 101 does not change, and the accuracy of the secondary winding output can be maintained.

  Further, the primary conductor 101 is fixed to a position 106 substantially opposite to the gap 103g of the core 103 on which the secondary winding 104 and the insulating material 105 are applied. If performed later, the accuracy of the secondary winding output is further improved.

  Further, the viewpoint is changed from the above, and after the position of the primary conductor 101 is shifted from the substantially opposite position 106 to a position where a predetermined output value is obtained (for example, after shifting to the position P5 where V5 is reached), If the displaced primary conductor 101 is fixed to the core 103 to which the secondary winding 104 and the insulating material 105 are applied, a transformer 1 with a gap having a predetermined secondary winding output can be obtained.

  From the same point of view, after winding the primary conductor 101 to a position displaced by an arbitrary amount from the substantially opposite position 106, the primary conductor 101 is connected to the secondary winding 104 and the insulating material. The core 103 to which the secondary winding 104 and the insulating material 105 are applied can be used as a common component by fixing the core 103 to which the core 105 is applied and obtaining an arbitrary output from the secondary winding 104. Thus, a plurality of types of transformers with gaps having different secondary winding outputs can be manufactured.

  Further, as described above, if the position display 108 for marking the position is provided at the position of the gap 103g of the insulating material 105, the position of the primary conductor 101 can be accurately determined using the position display 108 as a guide. It is possible to suppress the variation of the secondary winding output for each product.

Embodiment 2. FIG.
A second embodiment of the present invention will be described below with reference to FIG. 4 showing a front transformer with a gap. In the figure, the same or corresponding parts as those in FIGS. 1 to 3 described above are denoted by the same reference numerals, and the description of the second embodiment of the present invention focuses on the parts different from those of the first embodiment of the present invention. It will be explained in detail, and the explanation of other parts will be omitted.

  2 illustrates the case where the position display 108 is provided at a position corresponding to the gap 103g, but in the second embodiment of the present invention, as shown in FIG. It is provided at a position 106 opposite to 103g. If the position indicator 108 is provided at a position 106 opposite to the gap 103g, when the primary conductor 101 is wound around the position 106 opposite to the gap 103g, the position indicator 108 may be wound according to the position indicator 108. The accuracy of the position of the secondary conductor 101 and thus the accuracy of the output of the secondary winding 104 are improved.

Embodiment 3 FIG.
Embodiment 3 of the present invention will be described below with reference to FIG. 5 showing a transformer with a gap in a perspective view. In the figure, the same or corresponding parts as those in FIGS. 1 to 4 are denoted by the same reference numerals, and the description of the third embodiment of the present invention is different from those of the first and second embodiments of the present invention. The explanation of the other parts is omitted.

  In FIG. 4, the position display 108 is provided at the position 106 opposite to the gap 103g. However, since the position display 108 is provided only on the side surface of the insulating material 105, the primary conductor 101 is provided. In the case of winding, the position indicator 108 is covered with the wound primary conductor 101 and cannot be seen, and the exact position of the primary conductor 101 is not precisely known, and the accuracy of the position of the primary conductor 101, and hence 2 The output accuracy of the next winding 104 cannot necessarily be improved to the maximum.

  Therefore, in the third embodiment of the present invention, as shown in FIG. 5, the position display 108 is provided not only on the side surface of the insulating material 105 but also on the peripheral surface of the insulating material 105.

  According to the third embodiment of the present invention, when the primary conductor 101 is wound, even if the position indication 108 on the side surface of the insulating material 105 is covered with the wound primary conductor 101 and cannot be seen, The accurate position of the primary conductor 101 can be known from the position display 108 on the peripheral surface of the insulating material 105, and the accuracy of the position of the primary conductor 101 and, consequently, the accuracy of the output of the secondary winding 104 are further improved.

Embodiment 4 FIG.
Embodiment 4 of the present invention will be described below with reference to FIG. 6 showing a transformer with a gap in a front view. In the figure, the same or corresponding parts as those shown in FIGS. 1 to 5 are given the same reference numerals, and the description of the fourth embodiment of the present invention is different from the first to third embodiments of the present invention. The explanation of the other parts is omitted.

  In FIG. 2, one position display 108 is provided corresponding to the gap 103g. In FIGS. 4 and 5, the position display 108 is provided at the position 106 opposite to the gap 103g. In the fourth embodiment, as shown in FIG. 6, there are many positions including the position corresponding to the gap 103g and the position 106 opposite to the gap 103g, for example, the positions P1 to P12 in FIG. A position display 108 is provided, and a position display 108 at a position corresponding to the gap 103g and at a position 106 opposite to the gap 103g is more conspicuous than the position display 108 at other positions as shown in FIG. Display).

  As in the fourth embodiment of the present invention, the position is displayed at a number of positions including the position corresponding to the gap 103g and the position 106 opposite to the gap 103g, for example, the positions P1 to P12 in FIG. If 108 is provided, for example, as illustrated in the first embodiment of the present invention, the position of the primary conductor 101 is shifted from the substantially opposite position 106 to a position where a predetermined output value is obtained ( For example, after shifting to the position P5 that becomes V5), the shifted primary conductor 101 is fixed to the core 103 to which the secondary winding 104 and the insulating material 105 are applied, and a predetermined secondary winding is performed. When obtaining a line output gap transformer 1, or after winding the primary conductor 101 to a position shifted by an arbitrary amount from the substantially opposite position 106, the primary conductor 101 is wound on the secondary winding. 1 4 and the core 103 to which the insulating material 105 is applied so as to obtain an arbitrary output from the secondary winding 104, and the core 103 to which the secondary winding 104 and the insulating material 105 are applied. When a plurality of types of transformers with gaps having different secondary winding outputs, which are common parts, are manufactured, it is convenient.

Embodiment 5 FIG.
Embodiment 5 of the present invention will be described below with reference to FIG. 7 showing a transformer with a gap in a perspective view. In the figure, the same or corresponding parts as those shown in FIGS. 1 to 6 are designated by the same reference numerals, and the description of the third embodiment of the present invention is different from the first to fourth embodiments of the present invention. The explanation of the other parts is omitted.

  In FIG. 7, the core 103 (not shown in FIG. 7) is covered with a plastic case 109 to insulate the primary conductor 101 and the secondary winding 104 (not shown in FIG. 7). The primary conductor 101 passing through the through hole is fixed to the plastic case 109 with the adhesive 107 by injecting the adhesive 107 into the central through hole of the plastic case 109. Further, in order to mount the gap-equipped transformer 1 on the substrate 43 on which the relay function unit 42 (see FIG. 1) is mounted, a secondary winding output terminal 110 and a pin inserted through a through hole (not shown) of the substrate 43 A mounting foot 111 is attached to the lower part (the substrate 43 side) of the transformer 1 with a gap. Further, the plastic case 109 corresponds to the gap 103g so that the position of the gap 103g (not shown in FIG. 7) of the core 103 (not shown in FIG. 7) can be recognized from the outside. The position display 108 is provided. Further, the gap 103g is disposed so as to come closest to the substrate 43, and the primary conductor 101 is located farthest from the substrate 43. In this way, the primary conductor 101 is disposed so as to be the farthest position from the substrate 43, so that the workability is good.

  In the board-mounted toroidal gap transformer configured as described above, when the primary conductor 101 is attached at a position 180 ° opposite to the gap 103g (not shown in FIG. 7), the primary conductor 101 The conductor 101 can be connected to and fixed to the relay input terminal 41 (see FIG. 1) of the primary conductor 101 at a position that is perpendicular to the substrate 43 and farthest away. Therefore, workability is improved as compared with the case where the primary conductor is disposed at another position (for example, a position close to the substrate 43).

It is a figure which shows Embodiment 1 of this invention, and is a connection diagram which shows the usage example of a transformer with a gap. It is a figure which shows Embodiment 1 of this invention, and is a front view which shows a transformer with a gap. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows Embodiment 1 of this invention, and is a figure which shows the relationship between the circumferential direction position of the primary conductor of a transformer with a gap, and the output value (voltage) of a secondary winding, The (a) is horizontal It is a figure which shows on the vertical axis | shaft the output value (voltage) at the time of making the center of an axis | shaft into the position exactly opposite to a gap on a vertical axis | shaft, and making the center of a horizontal axis | shaft into a gap. It is a figure which shows Embodiment 2 of this invention, and is a figure which shows a transformer with a gap with a front view. It is a figure which shows Embodiment 3 of this invention, and is a figure which shows a transformer with a gap with a perspective view. It is a figure which shows Embodiment 4 of this invention, and is a figure which shows a transformer with a gap with a front view. It is a figure which shows Embodiment 5 of this invention, and is a figure which shows a transformer with a gap with a perspective view.

Explanation of symbols

1 Gap transformer,
101 primary conductor,
102 Secondary winding output,
103 cores,
103A one end,
103B other end,
103g gap,
103SA, 103SB side,
104 Secondary winding,
105 insulation,
106 Position approximately opposite to the gap 103g,
107 adhesive,
108 Position display,
109 plastic case,
110 Secondary winding output terminal,
111 mounting feet,
2 Power system,
3 CT (current transformer),
4 Relay,
41 Relay input terminal,
42 Relay function part,
43 substrates,
P1-P12 position,
V1 to V12 Secondary winding output voltage.

Claims (17)

The secondary winding is wound at substantially equal intervals from one end having a surface facing the gap to the other end having a surface facing the gap of a substantially C-shaped core partially formed with a gap. after, the secondary winding and fixing the core and the secondary winding to the core covered with an insulating material so that invisible and the secondary winding and the gap between the core, the core the winding the primary conductor over the insulating material a method of manufacturing a transformer with a gap,
At least one of the position of the gap of the insulating material and the position substantially diametrically opposite to the gap of the insulating material is subjected to position indication for marking the position,
Using the position indication as a guide, the primary conductor is wound from above the insulating material at a position substantially opposite to the gap of the core,
The primary conductor is fixed at a position approximately opposite to the gap of the core provided with the secondary winding and the insulating material.
The manufacturing method of the transformer with a gap characterized by the above-mentioned . The secondary winding is wound at substantially equal intervals from one end having a surface facing the gap to the other end having a surface facing the gap of a substantially C-shaped core partially formed with a gap. Then, the core and the secondary winding are covered with an insulating material so that the core, the gap, and the secondary winding are not visible, and the secondary winding is fixed to the core. A method of manufacturing a transformer with a gap in which a primary conductor is wound from above an insulating material,
Positions that serve as adjustment guides at predetermined intervals in the circumferential direction of the core on the insulating material on both sides of the insulating material at the center of at least one of the position of the gap and the position opposite to the gap of the insulating material. Display,
Using the position indication as a guide, the primary conductor is wound from above the insulating material at a position substantially opposite to the gap of the core,
The method for manufacturing a transformer with a gap , wherein the primary conductor is fixed at a position substantially opposite to the gap of the core to which the secondary winding and the insulating material are applied . One end portion having a surface facing the gap of a substantially C-shaped core partially formed with a gap
To the other end having a surface facing the gap, the secondary winding is wound at substantially equal intervals, and then the core and the secondary winding are connected to the core, the gap, and the secondary winding. A method of manufacturing a transformer with a gap in which a secondary conductor is fixed to the core by covering with an insulating material so that the core is not visible, and a primary conductor is wound on the core from above the insulating material,
At least one of the position of the gap of the insulating material and the position opposite to the gap of the insulating material is subjected to a position indication that marks the position,
The primary conductor is shifted from a position opposite to the gap of the core to a position where a predetermined output value is obtained using the position indication as a guide, and then the shifted primary conductor is moved to the secondary winding and A method for manufacturing a transformer with a gap, characterized in that the transformer is fixed to the core provided with the insulating material . The secondary winding is wound at substantially equal intervals from one end having a surface facing the gap to the other end having a surface facing the gap of a substantially C-shaped core partially formed with a gap. Then, the core and the secondary winding are covered with an insulating material so that the core, the gap, and the secondary winding are not visible, and the secondary winding is fixed to the core. A method of manufacturing a transformer with a gap in which a primary conductor is wound from above an insulating material ,
Positions that serve as adjustment guides at predetermined intervals in the circumferential direction of the core on the insulating material on both sides of the insulating material at the center of at least one of the position of the gap and the position opposite to the gap of the insulating material. Display,
The primary conductor is shifted from a position opposite to the gap of the core to a position where a predetermined output value is obtained using the position indication as a guide, and then the shifted primary conductor is moved to the secondary winding and A method for manufacturing a transformer with a gap, characterized in that the transformer is fixed to the core provided with the insulating material . The secondary winding is wound at substantially equal intervals from one end having a surface facing the gap to the other end having a surface facing the gap of a substantially C-shaped core partially formed with a gap. Then, the core and the secondary winding are covered with an insulating material so that the core, the gap, and the secondary winding are not visible, and the secondary winding is fixed to the core. A method of manufacturing a transformer with a gap in which a primary conductor is wound from above an insulating material,
Positions that serve as adjustment guides at predetermined intervals in the circumferential direction of the core on the insulating material on both sides of the insulating material at the center of at least one of the position of the gap and the position opposite to the gap of the insulating material. Display,
After winding the primary conductor from above the insulating material to a position shifted by an arbitrary amount from the position opposite to the gap of the core , using the position indication as a guideline, the primary conductor is wound on the secondary winding. Fixed to the core to which the wire and the insulating material are applied,
A method for manufacturing a transformer with a gap, wherein an arbitrary output is obtained from the secondary winding. In the manufacturing method of the transformer with a gap as described in any one of Claims 1-5,
The method for manufacturing a transformer with a gap, wherein the position indication is provided on a peripheral surface of the insulating material . In the manufacturing method of the transformer with a gap as described in any one of Claims 1-6,
The position indication is formed on an outer surface of the insulating material by injecting the insulating material after the core around which the secondary winding is wound is placed in a casting mold. Manufacturing method of transformer with gap. In the manufacturing method of the transformer with a gap as described in any one of Claims 1-7,
The primary conductor is fixed after the output value inspection of the secondary winding.
The manufacturing method of the transformer with a gap characterized by the above-mentioned . A substantially C-shaped core with a gap formed in part, and the core was wound at substantially equal intervals from one end having a surface facing the gap to the other end having a surface facing the gap. A secondary winding, an insulating material that covers the core and the secondary winding so that the core, the gap, and the secondary winding cannot be seen; and a primary wound around the core from above the insulating material A gap transformer with a conductor,
A position indication that is applied to at least one of the position of the gap of the insulating material and the position substantially diametrically opposite to the gap of the insulating material;
The primary conductor is wound from above the insulating material at a position approximately opposite to the gap of the core, with the position indication as a guideline,
The gap transformer, wherein the primary conductor is fixed at a position substantially opposite to the gap of the core to which the secondary winding and the insulating material are applied. A substantially C-shaped core with a gap formed in part, and the core was wound at substantially equal intervals from one end having a surface facing the gap to the other end having a surface facing the gap. secondary winding, the core and the secondary winding cover as said gap between said core and said secondary winding is not visible insulation, and wound over the insulating material to the core 1 A gapped transformer with a secondary conductor ,
An adjustment guide provided at a predetermined interval in the circumferential direction of the core on at least one of the position of the gap of the insulating material and at least one of the positions opposite to the gap of the insulating material. Has a position indication
The primary conductor is wound from above the insulating material at a position substantially opposite to the gap of the core, using the position indication as a guideline,
The primary conductor is fixed at a position substantially opposite to the gap of the core to which the secondary winding and the insulating material are applied.
A transformer with a gap. A substantially C-shaped core with a gap formed in part, and the core was wound at substantially equal intervals from one end having a surface facing the gap to the other end having a surface facing the gap. A secondary winding, an insulating material that covers the core and the secondary winding so that the core, the gap, and the secondary winding cannot be seen; and a primary wound around the core from above the insulating material a transformer with a gap having a conductor,
Has a position display to mark on at least one decorated the position of the gap and opposites position of position and the insulation of the gap of the insulating material,
The primary conductor is shifted from a position directly opposite to the gap of the core to a position where a predetermined output value is obtained, using the position indication as a guide, and the shifted primary conductor is connected to the secondary winding and A gap transformer, wherein the transformer is fixed to the core provided with the insulating material . A substantially C-shaped core with a gap formed in part, and the core was wound at substantially equal intervals from one end having a surface facing the gap to the other end having a surface facing the gap. A secondary winding, an insulating material that covers the core and the secondary winding so that the core, the gap, and the secondary winding cannot be seen; and a primary wound around the core from above the insulating material a transformer with a gap having a conductor,
Wherein the position and the insulation of the gap of the insulating material around the at least one gap and opposites position in the insulating material on both sides thereof, is subjected at a predetermined interval in circumferential direction of the core, adjustment guide has a position display to be,
The primary conductor is shifted from a position directly opposite to the gap of the core to a position where a predetermined output value is obtained, using the position indication as a guide, and the shifted primary conductor is connected to the secondary winding and
A gap transformer, wherein the transformer is fixed to the core provided with the insulating material . A substantially C-shaped core with a gap formed in part, and the core was wound at substantially equal intervals from one end having a surface facing the gap to the other end having a surface facing the gap. A secondary winding, an insulating material that covers the core and the secondary winding so that the core, the gap, and the secondary winding cannot be seen; and a primary wound around the core from above the insulating material a transformer with a gap having a conductor,
An adjustment guide provided at a predetermined interval in the circumferential direction of the core on at least one of the position of the gap of the insulating material and at least one of the positions opposite to the gap of the insulating material. Has a position indication
The primary conductor is wound at a position shifted by an arbitrary amount from the position opposite to the gap of the core, using the position indication as a guide, and the primary conductor is applied with the secondary winding and the insulating material. Fixed to the core,
Get arbitrary output from the secondary winding
A transformer with a gap. In the transformer with a gap according to any one of claims 9 to 13,
The position indication is provided on the peripheral surface of the insulating material.
A transformer with a gap. In the transformer with a gap according to any one of claims 9 1 4,
The position display is a position display formed on an outer surface of the insulating material by injecting the insulating material after the core around which the secondary winding is wound is placed in a casting mold. Transformer with gap. The gapd transformer according to any one of claims 9 to 15,
The transformer with gap , wherein the primary conductor is fixed after the output value of the secondary winding is inspected .   The transformer with a gap according to any one of claims 9 to 16, further comprising a secondary winding output terminal inserted into and connected to a connection board on the gap side.

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