WO2006114869A1

WO2006114869A1 - Electromagnet device for elevator

Info

Publication number: WO2006114869A1
Application number: PCT/JP2005/007531
Authority: WO
Inventors: Hideki Nakashima; Hisanori Uozumi; Hiroshi Yamanaka
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2005-04-20
Filing date: 2005-04-20
Publication date: 2006-11-02
Also published as: JPWO2006114869A1; EP1873793A4; EP1873793A1; CN101006531A

Abstract

An electromagnetic coil body has a winding frame and an electromagnetic coil provided on the winding frame. The electromagnetic coil body is installed on a field by a coil installation member. The coil installation member is engaged with the winding frame and fixed to the field, fixing the electromagnetic coil body to the field. The construction facilitates installation of the electromagnetic coil body on the field and makes the installation more reliable.

Description

Specification

Elevator electromagnetic magnet system

TECHNICAL FIELD [0001] The present invention relates to an electromagnetic magnet device for an elevator provided in, for example, an electric motor or a brake device mounted on an elevator hoist.

Background art

Conventionally, an electromagnetic coil is fixed to a shell by injecting a molding material such as varnish or resin between the electromagnetic coil and the shell. The mold material is injected between the electromagnetic coil and the shell and then cured by being heated. The electromagnetic coil is fixed to the shell by curing the molding material (see Patent Document 1).

Patent Document 1: Japanese Patent Laid-Open No. 11 136911

Disclosure of the invention

Problems to be solved by the invention

[0004] However, before starting the work of fixing the electromagnetic coil to the shell, it is necessary to perform complicated work such as a work of making a mold material by mixing the main agent and the curing agent and a work of weight management. There is. In addition, since the linear expansion coefficient of the electromagnetic coil or shell and the linear expansion coefficient of the mold material are different from each other, cracks may occur in the mold material due to temperature changes, or the shell force of the mold material may be peeled off. is there.

[0005] The present invention has been made to solve the above-described problems, and can be easily manufactured, and the electromagnetic magnet of an elevator that can more reliably attach the electromagnetic coil to the field. The object is to obtain a device.

Means for solving the problem

An electromagnetic magnet device for an elevator according to the present invention is engaged with an electromagnetic coil body having a cage frame and an electromagnetic coil provided on the cage frame, a field to which the electromagnetic coil body is attached, and the cage frame, In addition, a coil mounting member for mounting the electromagnetic coil body on the field by being fixed to the field is provided.

Brief Description of Drawings FIG. 1 is a perspective view showing an electromagnetic magnet device for an elevator according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view showing the bobbin of FIG.

FIG. 3 is a front view showing the protrusion and screw of FIG.

4 is a cross-sectional view taken along line IV-IV in FIG.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1.

FIG. 1 is a perspective view showing an electromagnetic magnet device for an elevator according to Embodiment 1 of the present invention. In the figure, a brake device mounted on a lifting machine of an elevator brakes the rotation of the rotating body by being pressed against the rotating body (not shown) that rotates integrally with the rotating shaft of the lifting machine. Movable member (not shown), a spring (not shown) that presses the movable member against the rotating body, and an electromagnetic magnet device 1 that separates the movable member from the rotating body against the biasing force of the spring. is doing.

The movable member is disposed between the electromagnetic magnet device 1 and the rotating body. The electromagnetic magnet device 1 generates an electromagnetic attractive force when energized. The movable member is pressed against the rotating body by the urging force of the spring when energization to the electromagnetic magnet device 1 is stopped, and when the electromagnetic magnet device 1 is energized, the electromagnetic magnet device 1 It is attracted to the side and separated from the rotating body against the biasing force of the spring.

[0010] The electromagnetic magnet device 1 includes a plurality of plate-like fields 2 made of a magnetic material such as iron, and annular (endless) electromagnetic coil bodies 3 provided in each field 2, respectively. Have. Each field 2 is arranged so that the thickness direction of the field 2 is perpendicular to the direction in which the movable member is displaced. A concave portion (coil installation portion) 5 in which the electromagnetic coil body 3 is installed is provided in the thickness direction of the field 2 in a portion facing the movable member of each field 2. A field core portion (iron core portion) 6 that is passed through the inside of the electromagnetic coil body 3 is provided in the recess 5. The field core portion 6 protrudes from the bottom force of the recess 5.

[0011] The electromagnetic coil body 3 includes an annular bobbin 7 and an outer peripheral portion of the bobbin 7 so as to surround the bobbin 7. And an annular electromagnetic coil 8. The bobbin 7 is disposed in the recess 5 so that the height direction of the field core portion 6 and the thickness direction of the bobbin 7 coincide with each other. The bobbin 7 and the electromagnetic coil 8 are integrated with each other.

Here, FIG. 2 is a perspective view showing the bobbin 7 of FIG. As shown in FIG. 2, the bobbin 7 extends along a pair of annular facing portions 9 and 10 facing each other in the thickness direction of the bobbin 7 and the inner peripheral portion of each facing portion 9 and 10. An annular connecting portion 11 that connects the portions 9 and 10 and a plurality of projecting portions 12 that protrude from the outer peripheral portion of one facing portion 9 in the direction opposite to the other facing portion 10 side. Each protrusion 12 is provided with a through hole 13. The bobbin 7 is provided with a groove portion 14 extending in the circumferential direction of the bobbin 7 by the facing portions 9 and 10 and the connecting portion 11. The bobbin 7 is a resin molding member made of resin.

The bobbin 7 is disposed in the recess 5 so that one facing portion 9 is closer to the bottom side of the recess 5 than the other facing portion 10. A part of one facing portion 9 extends along a boundary line between the side surface of the field 2 and the bottom surface of the recess 5. Each protrusion 12 protrudes from the facing portion 9 along the side surface of the field 2.

The electromagnetic coil 8 is disposed in the groove portion 14. The electromagnetic coil 8 is configured by winding a self-bonding enamel wire around a bobbin 7 along the groove portion 14. Here, the self-bonding enameled wire is a layer in which an adhesive layer that is melted by heating is superimposed on the surface of the enameled wire (a varnish burned on a conductor). The electromagnetic coil 8 is manufactured by heating the adhesive layer by energizing the self-bonding enameled wire, and fusing and hardening the enameled wires.

The electromagnetic coil body 3 is mounted (held) on the field 2 by a plurality of screws (coil mounting members) 15 passed through the through holes 13. FIG. 3 is a front view showing the protrusion 12 and the screw 15 of FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. In the figure, a plurality of screw holes 16 are provided on the side surface of the field 2. Each screw hole 16 is disposed at the same position as the through hole 13 of each protrusion 12 in the direction along the boundary line between the bottom surface of the recess 5 and the side surface of the field 2.

[0016] Each screw 15 has a head 17 whose outer diameter is larger than the inner diameter of the through hole 13, and a rod-like shape that protrudes from the head 17 and passes through the through hole 13 and is screwed into the screw hole 16. It has a threaded portion 18. Each protrusion 12 is engaged with the screw 15 by the threaded portion 18 being passed through the through hole 13. Further, each screw 15 is fixed to the field 2 by the screwing portion 18 being screwed into the screw hole 16.

That is, in the electromagnetic coil body 3, the plurality of screws 15 that are passed through the through holes 13 and engaged with the protrusions 12 are screwed into the screw holes 16 and fixed to the field 2, thereby It is designed to be installed. In this example, the screw 15 is a hexagon socket head cap screw. In addition, an adhesive is provided between the bobbin 7 and the field core 6, between the bobbin 7 and the bottom surface of the recess 5, between the screw 15 and the through hole 13, and between the screw 15 and the screw hole 16. 19 intervenes.

Next, a method for producing the electromagnetic coil body 3 will be described. First, set bobbin 7 on the wire feeder. Thereafter, the winding machine is operated, and the self-bonding enameled wire is wound around the bobbin 7 with a predetermined tension and a predetermined number of turns. Thereafter, the bobbin 7 wound with the self-bonding enameled wire is removed from the winding machine, and the self-bonding enameled wire is energized. As a result, the adhesive layer on the surface of the self-bonding enameled wire is melted, and the self-bonding enameled wires are fused together. Thereafter, the energization is stopped, the molten adhesive layer is cured, and the electromagnetic coil body 3 is produced.

Next, a procedure for attaching the electromagnetic coil body 3 to the field 2 will be described. First, the adhesive 19 is thickly applied on the boundary between the field core 6 and the bottom of the recess 5. Thereafter, the electromagnetic coil body 3 is inserted into the recess 5. At this time, the field core portion 6 is inserted inside the electromagnetic coil body 3, and the adhesive 19 is pushed and spread between the bobbin 7 and the bottom surface of the recess 5 and the field core portion 6.

Thereafter, an adhesive 19 is injected into each screw hole 16 and each through hole 13. Thereafter, the screw 15 is screwed into each screw hole 16 while passing through each through hole 13, and the screw 15 is tightened. In this way, the electromagnetic coil body 3 is attached to the field 2.

In such an electromagnetic magnet device 1, the screw 15 engaged with the bobbin 7 is fixed to the field 2, so that the electromagnetic coil body 3 is attached to the field 2. Even when there is a deviation between the electromagnetic coil body 3 and the field 2 due to a temperature change or the like, the engagement of the screw 15 and the bobbin 7 prevents the electromagnetic coil body 3 from being removed from the field 2. Therefore, the electromagnetic coil body 3 can be more securely attached to the field 2. In addition, bobbins that do not require the preparation and management of mold materials as in the past 7 Therefore, the electromagnetic coil body 3 can be easily mounted on the field 2 and the electromagnetic magnet device 1 can be easily manufactured.

Further, the screw 15 is adapted to be engaged with the bobbin 7 by being passed through the through hole 13 and to be fixed to the field 2 by being screwed to the screw hole 16. Can be easily engaged with the bobbin 7 and can be easily fixed to the field 2

In addition, since the bobbin 7 has the protrusion 12 provided with the through hole 13, the position of the through hole 13 can be easily inserted into the screw 15! /, And the electromagnetic coil The work when attaching the body 3 to the field 2 can be further facilitated.

[0024] Since the adhesive 19 is interposed between the screw 15 and the through hole 13 and between the bobbin 7 and the field 2, the screw 15 is prevented from loosening due to the creep phenomenon of the bobbin 7. can do. In particular, when the bobbin 7 is made of greaves, distortion due to the creep phenomenon is significant, and thus the effect of preventing the screw 15 from loosening is increased.

[0025] Further, since the bobbin 7 is made of resin, the electromagnetic coil body 3 can be easily manufactured at low cost.

[0026] Further, since the electromagnetic coil 8 is configured by winding a self-bonding enameled wire on the bobbin 7, there is no need to harden the electromagnetic coil 8 with a molding material, and the electromagnetic coil body 3 can be manufactured. Can be easily.

[0027] Further, since the self-bonding enameled wire wound around the bobbin 7 is fused by the heat generated by energization, the electromagnetic force can be obtained simply by energizing the self-bonding enameled wire. The coil 8 can be hardened, and the production of the electromagnetic coil body 3 can be further facilitated.

[0028] In the above example, the force that is adapted to attach the electromagnetic coil body 3 to the field 2 by screwing the screw 15 passed through the through hole 13 into the screw hole 16 Field 2 The electromagnetic coil body 3 may be attached to the field 2 by providing a pin hole on the side surface and driving a pin (coil attachment member) passed through the through hole 13 into the pin hole. Even in this case, the pin engaged with the bobbin 7 can be fixed to the field 2, and the electromagnetic coil body 3 can be securely attached by the field 2. [0029] In the above example, the self-bonding enameled wire is wound on the bobbin 7, so that the electromagnetic coil 8 is formed. May be produced. In this case, an insulating tape for electrical and mechanical protection may be wound around the outer circumference of the enameled wire.

[0030] In the above example, the force 19 in which the adhesive 19 is interposed between the screw 15 and the through hole 13 and between the bobbin 7 and the field 2 Adhesive 19 may be interposed only between the gap and between the bobbin 7 and the field 2. Even in this case, it is possible to prevent the screw 15 from loosening due to the creep phenomenon of the bobbin 7.

[0031] In the above example, the present invention is applied to the brake device mounted on the hoisting machine. However, the present invention may be applied to an electric motor of the hoisting machine. In other words, the present invention may be applied to a stator for rotating a rotor in an electric motor.

Claims

The scope of the claims

[1] An electromagnetic coil body having a collar frame and an electromagnetic coil provided on the collar frame,

A field to which the electromagnetic coil body is mounted; and

A coil mounting member for mounting the electromagnetic coil body to the field by engaging with the frame and being fixed to the field.

An electromagnetic magnet device for an elevator, comprising:

[2] The coil mounting member is a screw,

The collar frame is provided with a through hole through which the screw is passed,

The field punch is provided with a screw hole into which the screw is screwed.

The screw is engaged with the flange frame by being passed through the through hole, and is fixed to the field by being screwed into the screw hole. The elevator electromagnetic magnet device according to 1.

[3] The rib frame has a protrusion provided with the through hole.

2. An electromagnetic magnet device for an elevator according to 2.

[4] The adhesive according to claim 2 or claim 2, wherein an adhesive is interposed between at least one of the screw and the through hole and between the flange frame and the field. The elevator electromagnetic magnet device described in 3.

[5] The elevator electromagnetic magnet device according to any one of [1] to [4], wherein the flange frame is made of grease.

[6] The electromagnetic of the elevator according to any one of claims 1 to 5, wherein the electromagnetic coil is configured by winding a self-bonding enameled wire around the frame. Magnet device.

[7] The elevator electromagnetic wave according to claim 6, wherein the self-bonding enameled wire wound around the frame is fused by heat generated by energization. Magnet device.