JP3544640B2 - Resolver structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a resolver structure, in particular, a new connector for directly providing a pair of connectors having connection surfaces orthogonally arranged to each other on an insulating cover of a ring-shaped stator, making the connector detachable from an external connector, and omitting a conventional lead wire or the like. Regarding improvement.
[0002]
[Prior art]
The structure shown in FIGS. 3 and 4 can be cited as this type of resolver structure conventionally used.
That is, what is indicated by reference numeral 1 in FIGS. 3 and 4 is a laminated annular stator having an overall shape of a ring, and a plurality of inwardly projecting integrally inside the ring-shaped stator 1. The pole teeth 1A are formed, and a rotor 20 having only an iron core is rotatably provided inside the ring-shaped stator 1.
A pair of annular insulating covers 2 and 3 are provided on each end face of the annular stator 1, and a stator winding 4 is wound around each pole tooth 1 </ b> A via the insulating covers 2 and 3.
The insulating cover 2 is provided with a connection portion 6 in which a plurality of terminal pins 5 are provided by insert molding or insertion, and one end of each terminal pin 5 is connected to an end wire of the stator winding 4. I have.
A lead wire 8 to which a connector 7 is connected is connected to the other end of each of the terminal pins 5 by caulking or soldering. A cylindrical lead wire cover 9 is provided around the outer periphery of the lead wire 8.
Therefore, after attaching the resolver 10 shown in FIGS. 3 and 4 to an automobile, a robot, a machine tool, or the like, the external connector 11 provided on the external cord 12 drawn from these control devices is attached to and detached from the connector 7. It is provided freely.
[0003]
[Problems to be solved by the invention]
Since the conventional resolver structure is configured as described above, the following problems exist.
That is, since the lead wire having the connector is connected to the terminal pin of the connection portion provided on the ring-shaped stator by caulking, crimping, soldering, etc., the connection work is troublesome, and the cost is reduced by the components of the connector and the lead wire. In this case, only the connector and the lead wire make up 10% to 30% of the resolver body. Therefore, the weight in cost is high, and it is extremely difficult to reduce the cost of the resolver body.
In addition, since the terminal pins and the lead wires on the connector side are connected by caulking, crimping, soldering, or the like, when handling the resolver, the connecting portion may come off, making it difficult to obtain sufficient reliability. there were.
[0004]
The present invention has been made in order to solve the above problems, and in particular, a connector is provided directly on an insulating cover of a ring-shaped stator, and an external connector can be directly attached to and detached from a connector having a pair of orthogonally arranged connection surfaces. It is another object of the present invention to provide a resolver structure in which conventional lead wires and the like are omitted.
[0005]
[Means for Solving the Problems]
Resolver structure according to the present invention, a stator winding provided through the inner plurality of pole teeth in an insulating cover formed toward the annular stator has freely rotating the rotor inside the annular stator, the insulation A resolver structure having a connector integrally provided on a cover and having a male connector pin, wherein the stator winding is connected to the connector pin and an external connector is directly detachable from the connector. The pin has an L-shape and has one end and the other end extending in directions orthogonal to each other, and one end of the connector pin extends along the axial direction of the annular stator to connect the external connector. The other end of the connector pin is located on a first connection surface side of the connector, and the other end of the connector pin extends in a radial direction of the ring-shaped stator. Located on the second connecting surface of the connector for connecting the bottom surface of the connector and one face flush of the annular stator, the annular stator part of the bottom surface of the connector as a plurality stepped portions and Joined to the insulating cover, the connector pin provided on the connector is located only above the other surface of the annular stator, and one end and the other end of the connector pin are on the first and second connection surfaces of the connector. The end faces of the stator windings are wound around and connected to the center positions of the connector pins, and the surface directions of the connection surfaces are orthogonal to each other.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a resolver structure according to the present invention will be described with reference to the drawings. The same or equivalent parts as those in the conventional example will be described using the same reference numerals.
In FIG. 1 and FIG. 2, reference numeral 1 denotes a laminated annular stator having an overall shape of an annular shape. Inside the annular stator 1, a plurality of pole teeth integrally projecting inward are provided. 1A, a rotor 20 having only an iron core is rotatably provided inside the ring-shaped stator 1.
The rotor 20 is a well-known VR (Variable Reluctance) type and a 2 × (× is a double-axis angle) detection type, but may be any number such as 4 × or 6 × or more. Further, the rotor 20 is not limited to the VR type, and may be a winding type rotor having a rotor winding. That is, the outer shape of the VR rotor 20 is configured such that the gap permeance with the stator 1 changes.
[0007]
A pair of annular insulating covers 2 and 3 are provided on each end face of the annular stator 1, and a stator winding 4 is wound around each pole tooth 1A via the insulating covers 2 and 3. I have.
Wherein the one end of the insulating cover 2, the resin is formed with a connector 7 that is formed by connecting together with connector pins 7a is provided by insert molding or the like in the connector 7.
[0008]
As shown in FIG. 2, each of the connector pins 7 a has an L-shape as a whole, and one end 7 aB extends in the axial direction of the ring-shaped stator 1 to connect the external connector 11. The other end 7Aa is located on the second connection surface 7A 'side of the connector 7 for connecting the external connector 11 by extending along the radial direction of the annular stator 1. . Therefore, the connection surfaces 7B and 7A 'are formed orthogonal to each other. The bottom surface of the connector 7 is flush with one surface of the ring-shaped stator 1, and a part of the bottom surface 7 </ b> G of the connector 7 is formed as a plurality of steps 7 </ b> H having a plurality of steps on the ring-shaped stator 1 and the insulating cover 2. The connector pins provided on the connector 7 are located only above the other surface 1H of the annular stator 1. One end 7aB and the other end 7Aa of the connector pin 7a are connected to the first and second ends of the connector 7. It is located facing the connection surfaces 7B, 7A '.
[0009]
An end wire of the stator winding 4 is wound around and connected to a center position of a connector pin 7a provided in the connector 7, and one end 7aB and the other end 7Aa of the connector pin 7a are formed in a state of being orthogonal to each other. 7 are arranged facing the first and second connection surfaces 7B, 7A '.
Therefore, by connecting the external connector 11 indicated by a dashed line to each of the connection surfaces 7B and 7A 'of the connector 7, the connector 7 can be used for various purposes such as selecting a takeout direction of the external cord 12.
The mounting position of the connector 7 on the annular stator 1 is not limited to the position shown in FIG. 2 and can be variously selected.
[0010]
【The invention's effect】
Since the resolver structure according to the present invention is configured as described above, the following effects can be obtained.
That is, since the connector is directly connected to the insulating cover of the annular stator, the lead wire of the connector body which has been conventionally used becomes unnecessary, and a significant cost reduction and improvement in reliability can be obtained. Further, the stator winding is connected to the center position with the connector pins having an L-shape, and one end and the other end of both ends thereof are located on the respective connection surfaces in the orthogonal arrangement, and can function as a bifurcated connector. .
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a resolver structure according to the present invention.
FIG. 2 is a sectional configuration view of a main part of FIG.
FIG. 3 is a configuration diagram showing a conventional configuration.
FIG. 4 is a sectional configuration diagram of FIG. 3;
[Explanation of symbols]
Reference Signs List 1 ring-shaped stator 1A pole teeth 2, 3 insulating cover 4 stator winding 7 connector 7a connector pin 7A connection surface 7B first connection surface 7A 'second connection surface 7aB one end 7Aa other end 11 external connector

Claims (1)

A plurality of pole teeth (1A) formed inward of the annular stator (1) are provided with stator windings (4) via insulating covers (2, 3), and are provided inside the annular stator (1). A connector (7) having a rotor (20) rotatably and having a male connector pin (7a) provided integrally with the insulating cover (2, 3), wherein the stator winding (4) is In the resolver structure which is connected to the connector pin (7a) and makes the external connector (11) directly detachable from the connector (7),
The connector pin (7a) has an L-shape and has one end (7aB) and the other end (7Aa) extending in directions orthogonal to each other, and one end (7aB) of the connector pin (7a) is connected to the annular stator (7aB). 1) is located on the first connection surface (7B) side of the connector (7) for connecting the external connector (11) by extending along the axial direction of the other end of the connector pin (7a). 7aa) is positioned on the second connecting surface (7A ') side of the connector for connecting the external connector (11) by extending along the radial direction of the annular stator (1) (7), said connector and one side of the bottom surface (7G) the annular stator (1) of (7) and (1A) and flush, said annular portions of said bottom surface of said connector (7) (7G) a plurality stepped portions as (7H) the stator (1) and said conjugated to an insulating cover (2), said connector said connector pins provided in (7) (7a) is located only above the other surface (1H) of the annular stator (1), The said One end (7aB) and the other end (7Aa) of the connector pin (7a) are located facing the first and second connection surfaces (7B, 7A ′) of the connector (7), and are connected to the end of the stator winding (4). The resolver structure, wherein the wire is wound around and connected to a center position of the connector pin (7a), and the surface directions of the connection surfaces (7B, 7A ') are arranged orthogonal to each other.

Images