JP2022081850A - Double-speed resolver - Google Patents

Abstract

To provide a double-speed resolver that can individually adjust an output voltage in a plurality of rotation detection units.SOLUTION: A double-speed resolver 100 comprises: a rotary transformer unit A that has a stator winding 111 wound around a stator 110 for a rotary transformer, and a first rotor winding 121 and a second rotor winding 122 wound around a rotor 120 for the rotary transformer; a first rotation detection unit B1 that has a first rotor winding 131 wound around a rotor 130 for a rotation detection unit and connected with the first rotor winding 121, and a first stator winding 141 wound around a stator 140 for a rotation detection unit; a second rotation detection unit B2 that has a second rotor winding 132 wound around the rotor 130 and connected with the second rotor winding 122, and a second stator winding 142 wound around the stator 140.SELECTED DRAWING: Figure 1

Description

The present invention relates to a double-speed resolver, and more particularly to a novel improvement for individually adjusting the output voltage of a plurality of rotation detection units in a double-speed resolver using a rotation transformer unit and a plurality of rotation detection units.

Conventionally, as a double-speed resolver, the one shown in Patent Document 1 is known. The configuration of this conventional double-speed resolver 100A is shown in FIG.

In FIG. 3, the double-speed resolver 100A includes a rotary transformer unit A having a rotary transformer stator winding 111 and a rotary transformer rotor winding 121a, a first rotor winding 131 for the rotation detection unit, and a first rotation detection unit. A first rotation detection unit B1 having one stator winding 141 and a second rotation detection unit B2 having a second rotor winding 132 for the rotation detection unit and a second stator winding 142 for the rotation detection unit are provided. ..

Here, the first rotation detection unit B1 and the second rotation detection unit B2 are provided independently of each other, and are configured to perform double-speed rotation detection of 1X and nX. That is, 1X is a method of electrically detecting rotation at a ratio of 1 times and nX is a method of detecting rotation at a ratio of n times, and each winding is equivalent to the one using a conventional gear mechanism having a 1 / n reduction ratio. The line is composed.

Jitsukaihei 6-47820 Gazette

In the configuration shown in FIG. 3, the first rotor winding 131 for the rotation detection unit and the second rotor winding 132 for the rotation detection unit are wound with a rotor for a rotary transformer via a connection wire 121b and a connection wire 121c, respectively. It is commonly connected to the wire 121a and is supplied with an excitation signal. According to this configuration, there is an advantage that an excitation signal can be supplied to both the first rotation detection unit B1 and the second rotation detection unit B2 by one rotation transformer unit.

However, due to such a common connection, when the number of turns of the first rotor winding 131 for the rotation detection unit is adjusted for adjusting the output voltage of the first rotation detection unit B1, the first rotor winding 131 for the rotation detection unit 131. And the combined inductance of the second rotor winding 132 for the rotation detection unit changed, and the output voltage of the second rotation detection unit B2 also changed. That is, in the double-speed resolver using the rotary transformer unit, there is a problem that the output voltage of each of the plurality of rotation detector units cannot be adjusted individually.

The present invention has been made to solve the above problems, and provides a double-speed resolver that can individually adjust the output voltage of each of a plurality of rotation detection units in a double-speed resolver using a rotary transformer unit. The purpose is.

The double-speed resolver of the present invention is wound around a rotary transformer stator winding wound around a rotary transformer stator, a rotary transformer first rotor winding wound around a rotary transformer rotor, and a rotary transformer rotor. The rotary transformer unit having the second rotor winding for the rotary transformer, the first rotor winding for the rotary detector wound around the rotor for the rotary detector, and connected to the first rotor winding for the rotary transformer, and The first rotation detection unit having the first stator winding for the rotation detection unit wound around the stator for the rotation detection unit and the rotor for the rotation detection unit were wound around and connected to the second rotor winding for the rotation transformer. A second rotor winding for the rotation detection unit and a second rotation detection unit having a second stator winding for the rotation detection unit wound around the stator for the rotation detection unit are provided.

According to the double-speed resolver of the present invention, since the rotary transformer section is provided with the first rotor winding for the rotary transformer and the second rotor winding for the rotary transformer, the first rotor winding for the rotary detector section is provided. The excitation signal is supplied from the first rotor winding for the rotary transformer, and the second rotor winding for the rotation detector receives the excitation signal from the second rotor winding for the rotary transformer. Here, since the first rotor winding for the rotary transformer and the second rotor winding for the rotary transformer can have different turns, the output voltage of the first rotation detector does not affect each other. The output voltage of the second rotation detection unit can be adjusted individually and easily. That is, when the rotary transformer unit is used, it is possible to provide a double-speed resolver capable of individually adjusting the output voltage of each of the plurality of rotation detection units.

It is a wiring diagram of the winding in the double speed resolver which concerns on Embodiment 1 of this invention. It is a block diagram which shows the arrangement of the rotor, the stator and the winding of the double speed resolver which concerns on Embodiment 1 of this invention. It is a wiring diagram of a winding in a conventional double-speed resolver.

Hereinafter, embodiments of the double-speed resolver of the present invention will be described with reference to the drawings. In each figure, the same parts are designated by the same reference numerals.

Embodiment 1.
First, the double-speed resolver 100 according to the first embodiment will be described with reference to FIGS. 1 and 2.

FIG. 1 is a wiring diagram of windings in the double-speed resolver 100 according to the first embodiment of the present invention. FIG. 2 is a configuration diagram showing an arrangement of a rotor, a stator, and a winding of the double-speed resolver 100 according to the first embodiment of the present invention.

[Double-speed resolver configuration]
First, the configuration of the double-speed resolver 100 will be described with reference to the configurations of the stator and the rotor shown in FIG. 2 for the wiring of each winding shown in FIG.

The double-speed resolver 100 mainly includes a rotary transformer unit A, a first rotation detection unit B1, and a second rotation detection unit B2.
[Structure of rotary transformer unit A]
As shown in FIG. 2, the rotary transformer unit A is provided with a rotary transformer stator 110 and a rotary transformer rotor 120. The rotary transformer stator 110 is attached to the housing 105. The rotary transformer rotor 120 is attached to a rotatable rotary shaft 101 and is configured to rotate together with the rotary shaft 101 inside the rotary transformer stator 110. The rotary shaft 101 is rotatably attached to the housing 105 by a pair of bearings 103.

A stator winding 111 for a rotary transformer is wound around the stator 110 for a rotary transformer. A first rotor winding 121 for a rotary transformer and a second rotor winding 122 for a rotary transformer are wound around the rotor 120 for a rotary transformer.
Then, the rotary transformer section A is composed of the stator 110 for the rotary transformer, the stator winding 111 for the rotary transformer, the rotor 120 for the rotary transformer, the first rotor winding 121 for the rotary transformer, and the second rotor winding 122 for the rotary transformer. Has been done. When an excitation signal is input from the outside to the R1-R2 phase of the stator winding 111 for a rotary transformer, an excitation signal is sent to each of the first rotor winding 121 for the rotary transformer and the second rotor winding 122 for the rotary transformer. Occurs.

[Structure of rotation detection units B1 and B2]
As shown in FIG. 2, the rotation detection units B1 and B2 are provided with a rotation detection unit rotor 130 and a rotation detection unit stator 140.
The rotor 130 for the rotation detection unit is attached to the rotation shaft 101 to which the rotor 120 for the rotation transformer is attached, and is configured to rotate together with the rotation shaft 101 inside the stator 140 for the rotation detection unit. The rotation detection unit stator 140 is attached to the housing 105 to which the rotation transformer stator 110 is attached.

A first rotor winding 131 for the rotation detection unit and a second rotor winding 132 for the rotation detection unit are wound around the rotor 130 for the rotation detection unit. A first stator winding 141 for the rotation detection unit and a second stator winding 142 for the rotation detection unit are wound around the stator 140 for the rotation detection unit. The rotation detection unit B1 is configured by the rotation detection unit rotor 130, the rotation detection unit first rotor winding 131, the rotation detection unit stator 140, and the rotation detection unit first stator winding 141. There is. Further, the second rotation detection unit B2 is configured by the rotor 130 for the rotation detection unit, the second rotor winding 132 for the rotation detection unit, the stator 140 for the rotation detection unit, and the second stator winding 142 for the rotation detection unit. There is.

The excitation signal generated in the rotation transformer first rotor winding 121 is supplied to the rotation detection unit first rotor winding 131 via the connection line 121b. The excitation signal generated in the second rotor winding 122 for the rotary transformer is supplied to the second rotor winding 132 for the rotation detection unit via the connection line 122b.
A double-angle signal 1X of two phases corresponding to the rotation angle θ of the rotor 130 for the rotation detection unit is output to the S1-S3 phase and the S2-S4 phase of the first stator winding 141 for the rotation detection unit. A two-phase n-fold angle signal nX corresponding to the rotation angle θ of the rotation detection unit rotor 130 is output to the S5-S7 phase and the S6-S8 phase of the second stator winding 142 for the rotation detection unit.
The 1x angle signal 1X is a first rotation detection signal that is output for one cycle in one rotation of the rotation shaft 101. The n-fold angle signal nX is a second rotation detection signal that is output for n cycles in one rotation of the rotation shaft 101.

[Characteristics of double-speed resolver 100]
Here, the features of the double-speed resolver 100 of the first embodiment will be described below.
In the following description, the voltage of the first rotation detection signal obtained by the first rotation detection unit B1 is referred to as an output voltage of the first rotation detection unit B1. Further, the voltage of the second rotation detection signal obtained by the second rotation detection unit B2 is referred to as an output voltage of the second rotation detection unit B2.
In the double-speed resolver 100 of the first embodiment, when an excitation signal is input from the outside to the R1-R2 phase of the stator winding 111 for the rotary transformer of the rotary transformer unit A, it rotates with the first rotor winding 121 for the rotary transformer. An excitation signal is independently generated in each of the second rotor winding 122 for the transformer.

The excitation signal generated in the first rotor winding 121 for the rotary transformer is supplied to the first rotor winding 131 for the rotation detection unit of the first rotation detection unit B1 via the connection line 121b. The excitation signal generated in the second rotor winding 122 for the rotary transformer is supplied to the second rotor winding 132 for the rotation detection unit of the second rotation detection unit B2 via the connection line 122b.

Therefore, even if the number of turns of the first rotor winding 131 for the rotation detection unit is adjusted in order to adjust the output voltage of the first rotation detection unit B1, the output voltage of the second rotation detection unit B2 changes. do not have. Further, even when the number of turns of the first rotor winding 121 for the rotary transformer is adjusted, the output voltage of the second rotation detection unit B2 does not change.
Similarly, even when the number of turns of the second rotor winding 132 for the rotation detection unit is adjusted in order to adjust the output voltage of the second rotation detection unit B2, the output voltage of the first rotation detection unit B1 may be adjusted. Does not change. Further, even when the number of turns of the second rotor winding 122 for the rotary transformer is adjusted to adjust the output voltage of the second rotation detection unit B2, the output voltage of the first rotation detection unit B1 changes. do not have.
Therefore, in the double-speed resolver 100 including the rotation transformer unit A, the first rotation detection unit B1, and the second rotation detection unit B2, the output voltages of the first rotation detection unit B1 and the second rotation detection unit B2 are measured. , Can be adjusted individually.
Further, since the number of turns of the first rotor winding 121 for the rotary transformer and the second rotor winding 122 for the rotary transformer may be adjusted, the output voltages of the first rotation detection unit B1 and the second rotation detection unit B2 are respectively. Will be easy to adjust.

[Other embodiments]
FIG. 2 shows a configuration including a set of a rotor 130 for a rotation detection unit and a stator 140 for a rotation detection unit, but the present invention is not limited to this, and the rotation detection unit rotor and the rotation detection unit for the rotation detection unit B1 are not limited to this. A stator for rotation detection, a rotor for rotation detection unit B2, and a stator for rotation detection unit may be provided respectively.

As the double-speed resolver 100 of the first embodiment, a specific example including two rotation detection units of a first rotation detection unit B1 and a second rotation detection unit B2 has been shown, but rotation detection of three or more n systems has been shown. It may be provided with a part. In this case, n rotor windings are also provided in the rotary transformer unit A, and the n rotor windings of the rotary transformer unit A and the n rotor windings of the rotation detection units B1 to Bn are connected to each other. It may be connected by a wire.

[Effects obtained by the embodiment]
As described above, according to the double-speed resolver 100 of the first embodiment of the present invention, the following effects can be obtained.
In the double-speed resolver 100, the rotary transformer unit A is provided with a first rotor winding 121 for a rotary transformer and a second rotor winding 122 for a rotary transformer, and the first rotor winding 131 for a rotary transformer is a rotary transformer. The excitation signal is supplied from the first rotor winding 121 for the rotation detector, and the second rotor winding 132 for the rotation detection unit receives the excitation signal from the second rotor winding 122 for the rotary transformer.

Here, since the first rotor winding 121 for the rotary transformer and the second rotor winding 122 for the rotary transformer can have different turns, the first rotation detection unit B1 and the first rotor winding 122 do not affect each other. The output voltage of each of the second rotation detection unit B2 can be adjusted individually and easily. Therefore, it is possible to provide a double-speed resolver in which the output voltages of the first rotation detection unit B1 and the second rotation detection unit B2 can be individually adjusted. Further, since the first rotor winding for the rotary transformer and the second rotor winding for the rotary transformer can have different turns, the first rotation detector and the second rotation detection can be detected without affecting each other. The output voltage of each unit can be easily adjusted.

The double-speed resolver 100 of the present invention can be used in an application that outputs a 1-fold angle signal 1X and an n-fold angle signal nX by a plurality of rotation detection units B1 and B2 by using a rotation transformer unit A. In this case, the double-speed resolver 100 can individually adjust the voltages of the 1-fold angle signal 1X and the n-fold angle signal nX.

100,100A Double speed resolver, 101 rotary shaft, 105 chassis, 110 rotary transformer stator, 111 rotary transformer stator winding, 120 rotary transformer rotor, 121 rotary transformer first rotor winding, 121b connection line, 122 2nd rotor winding for rotary transformer, 122b connection line, 130 rotor for rotation detection unit, 131 1st rotor winding for rotation detection unit, 132 second rotor winding for rotation detection unit, 140 stator for rotation detection unit, 141 1st stator winding for rotation detection unit, 142 2nd stator winding for rotation detection unit, A rotation transformer unit, B1 1st rotation detection unit, B2 2nd rotation detection unit.

Claims (1)

A stator winding (111) for a rotary transformer wound around a stator (110) for a rotary transformer, a first rotor winding (121) for a rotary transformer wound around a rotor (120) for a rotary transformer, and the rotary transformer. A rotary transformer unit (A) having a second rotor winding (122) for a rotary transformer wound around the rotor (120).
The first rotor winding (131) for the rotation detection unit, which is wound around the rotor (130) for the rotation detection unit and connected to the first rotor winding (121) for the rotation transformer, and the stator (140) for the rotation detection unit. The first rotation detection unit (B1) having the first stator winding (141) for the rotation detection unit wound around the).
The second rotor winding (132) for the rotation detection unit, which is wound around the rotor (130) for the rotation detection unit and connected to the second rotor winding (122) for the rotation transformer, and the stator for the rotation detection unit. A second rotation detection unit (B2) having a second stator winding (142) for the rotation detection unit wound around (140), and a second rotation detection unit (B2).
A double speed resolver equipped with.

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