JP2584575Y2 - Resolver - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resolver and, more particularly, to a novel improvement which is divided into three parts in the axial direction to facilitate assembly and lead-out.

[0002]

2. Description of the Related Art There have been various types of resolvers of this type which have been used in the past.
The configuration disclosed in Japanese Patent No. 8725 can be shown in FIGS. That is, what is indicated by reference numeral 1 in FIG. 4 is a casing whose overall shape is a tubular shape, and a stator detecting portion 3 having a stator detecting portion winding 2 and a stator transformer winding are provided on an inner wall 1a of the casing 1. The stator transformer 5 having the stator 4 is provided so as to be spaced apart in the axial direction.

A through hole 6 is formed at a central position of the casing 1, and a lead wire 7 of each of the windings 2, 4 is led out through the through hole 6.

[0004] A hollow rotary shaft 8 is rotatably provided in the casing 1. A rotor detector 10 having a rotor detector winding 9 and a rotor transformer winding are provided around the outer periphery of the rotary shaft 8. A rotor transformer 12 having a wire 11 is provided axially separated.

Accordingly, a detecting section 13 is constituted by the stator detecting section 3 and the rotor detecting section 10, and a rotating transformer section 14 is constituted by the stator transformer 5 and the rotor transformer 12.
Is composed.

[0006]

Problems to be Solved by the Invention Since the conventional resolver is configured as described above, the following problems exist. That is, since the casing, the stator detection unit, and the stator transformer were each configured independently,
The number of parts was large, the cost was increased, and assembly was not easy. Furthermore, since the lead wire is led out through the through hole provided in the casing, it is not easy to derive the winding of the stator detecting part, particularly after the stator detecting part is inserted into the casing, during assembly. It was the biggest obstacle during assembly.

[0007] The present invention has been made to solve the above problems, and in particular, the whole is divided into three parts in the axial direction,
An object of the present invention is to provide a resolver that facilitates assembling and facilitates lead-out.

[0008]

According to the present invention, there is provided a resolver comprising a detecting section and a rotating transformer section. The resolver includes a stator transformer of the rotating transformer section, and a stator detecting section joined to the stator transformer to form the detecting section. And a notch formed at one end of the stator transformer, wherein the stator transformer, the stator detector, and the flange have an outer diameter.

[0009]

In the resolver according to the present invention, the whole is composed of the detecting part, the rotating transformer part and the flange part, and the notch part is formed at one end of the stator transformer.
At the same time as joining the stator detector to the stator transformer, the lead wire can be led out from the cutout. Further, since the outer diameter of the resolver is constituted by the stator transformer, the stator detecting portion, and the flange portion, a casing is not required, so that the number of parts can be saved and the cost can be reduced.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a resolver according to the present invention will be described below in detail with reference to the drawings. The same or equivalent parts as those in the conventional example will be described with the same reference numerals.

In FIG. 1, reference numeral 5 denotes a stator transformer having a stator transformer winding 4, and a concave notch 5 a is formed at one end of the stator transformer 5. The line 7a is led out.

A stator detector 3 having a stator detector winding 2 is joined to the stator transformer 5 in the axial direction, and the lead wire 7b of the stator detector winding 2 of the stator detector 3 is connected to the notch. 5a.

The stator detector 3 includes a flange 2
0 is provided in the axial direction via a mounting screw 21, and a hollow cylindrical rotating shaft 8 is rotatably provided at an internal position of the stator transformer 5 and the stator detecting unit 3. ing.

A rotor detector 10 having a rotor detector winding 9 and a rotor transformer 12 having a rotor transformer winding 11 are provided on the outer periphery of the rotary shaft 8 so as to be axially separated from each other.

Therefore, by connecting the rotating shaft 8 to a rotation detection shaft (not shown) and fixing the stator transformer 5, the rotating shaft 8 can rotate without a bearing, and The outer diameter of the resolver itself can be formed by the above-described stator transformer 5, the stator detector 3, and the flange portion 20, and the resolver can be completed without using a conventional casing.

Further, when assembling this resolver, the lead wire 7a of the stator transformer winding can be immediately led out from the notch 5a, and the stator detector winding 2
The lead wire 7b can be led out from the cutout 5a at the same time that the stator detecting section 3 is joined to the stator transformer 5. The entire outer shape is not limited to a quadrangle, but may be a round shape, a hexagon, or the like. Further, the outer diameter of the resolver can be constituted by the outer diameters of the stator transformer, the stator detector, and the flange.

[0017]

Since the resolver according to the present invention is configured as described above, the outer diameter of the resolver can be detected by the stator, the stator, and the stator by forming the resolver from the transformer, the detector, and the flange. It can be made by the outer diameter of the part and the flange part, and can be configured without using a casing. Further, a notch is formed at one end of the stator transformer, and the lead wire is led out through the notch, so that the lead wire is easily led and the assembly of each part is extremely easy.

[Brief description of the drawings]

FIG. 1 is a half sectional view showing a resolver according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a half sectional view showing a conventional resolver.

FIG. 5 is a front view of FIG. 4;

FIG. 6 is a left side view of FIG. 5;

[Description of Signs] 3 Stator detector 5 Stator transformer 5a Notch 7a Lead wire 13 Detector 14 Rotary transformer 20 Flange

Claims (1)

(57) [Scope of request for utility model registration] 1. A resolver comprising a detection section (13) and a rotary transformer section (14), wherein a stator transformer (5) of the rotary transformer section (14) is joined to the stator transformer (5). (13), a flange portion (20) joined to the stator detection portion (3), and a notch (5a) formed at one end of the stator transformer (5). A lead wire (7b) of the stator detecting section (3) is led out from the notch (5a), and the stator transformer
(5) A resolver characterized in that the outer diameter is constituted by the stator detecting section (3) and the flange section (20).