JPS6026447A - Permanent magnet rotor type synchronous motor - Google Patents

Abstract

PURPOSE:To improve the assembling work by arranging a shortcircuiting projecting terminal and a shortcircuiting recess terminal on the projecting wall of a bobbin, and integrating the both. CONSTITUTION:Permanent magnet rotors are arranged at the inner open end of a stator having parallel magnetic path pieces, and bobbins 6a, 6b, on which armature windings 7a, 7b are wound, are mounted on the pieces. Projecting walls 8a, 8b are formed at one ends of collars 11a, 11b of the bobbins 6a, 6b. A connecting terminal 9 for connecting the wirings 7a, 7b, a shortcircuiting projecting terminal 12 and a recess terminal 13 are mounted at the walls. The terminals 12, 13 are disposed at the contacting surfaces 14a, 14b of the collars 11a, 11b and integrated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a two-pot bin type permanent magnet rotor type synchronous motor used as a drive source for equipment such as a small orange juicer.

Conventional configuration and its problems Traditionally, this type of small permanent magnet rotor type synchronous motor was
It was constructed as shown in FIGS. 1 and 2. That is, in the figure, 1 is a substantially U-shaped stator constructed by punching a thin steel plate, and this stator 1 has parallel magnetic path pieces 2a and 2b, and these magnetic path pieces 21L and 2b. A recess is provided inside the open end of the magnetic pole part 3a and 3b to form magnetic pole parts 3a and 3b.

A permanent magnet rotor 4 is fixed to a rotor shaft 6, and the permanent magnet rotor 4 is enclosed in a recess forming the magnetic pole portions 3a and 3b. Further, both ends of the rotor shaft 6 are supported by bearing bodies (not shown). 6a, eb
A bobbin A6a and a bobbin B are wound with the armature windings 7il, .l.7b, and these bobbin A6a and bobbin B6a are installed deep into the magnetic path pieces 2a and 2b of the stator 1, respectively.

Next, the armature winding 7 in the case of the above two-pot system
The method of connecting wires a and 7b will be explained with reference to FIG.

Pobin A6a and Pobin B6bK each have protruding wall portions sa and sb in a part thereof, and this protruding wall portion B
Two connection terminals 9 are attached to each of a and 8b by crimping or the like. A and C of this connection terminal 9 are the armature winding 7a.

In the winding start connection terminals 7b, B and D are winding end connection terminals, which are short-circuited by the short-circuit lead wire 1o. The wiring diagram is shown in FIG.

However, in the above conventional configuration, 厘≠=≠3
It is necessary to insert the bobbins 6a and 6b into each of the magnetic path pieces 21 and 2b, which requires time and effort to assemble and makes automatic assembly difficult.
After assembly, the connection between the respective armature windings 7a and 7b must be made using short-circuit lead wires 1o, which requires a lot of effort to assemble, resulting in high assembly costs. It had a point.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a two-pot bin type permanent magnet rotor type synchronous motor which is easy to assemble and is inexpensive and which solves the above-mentioned conventional drawbacks by simple means.

Structure of the Invention In order to achieve the above object, the present invention provides a convex terminal for shorting and four terminals for shorting connected to the shorting wire of each armature winding on the protruding wall of the bobbin B and the bobbin B, After the convex terminal for shorting and the four terminals for shorting are connected and the bobbin and bobbin B are combined and integrated, they are attached to both magnetic path pieces of the stator. The short-circuit lead wires used to short-circuit the armature windings of bobbin A and bobbin B can be eliminated, and the bobbin worker and bobbin B can be installed at the same time on both magnetic path pieces of the stator. As a result, assembly work can be significantly improved.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 5 to 7. Note that in FIGS. 6 to 7, the same parts as in FIGS. 1 to 4 shown in the conventional example are given the same numbers, and only the points different from the conventional example will be explained. That is, in one embodiment of the present invention, the protruding wall portion s is provided at one end of the flanges 11a and 11b of the bobbin A6a and the bobbin Beb.
a, sb are provided, and the armature winding 71 wound around the bobbin A62L and bobbin B61) is provided on the protruding wall portions 8a and 8'b.
L.

Connect the connection terminal 9A for connection of 7b, the shorting convex terminal 12 for shorting 9n, and the four shorting terminals 13 with eyelets (not shown).
It is installed by tightening it. In addition, the short circuit convex terminal 12
and the four short-circuit terminals 13 are bobbin yA6a and bobbin B6
b (7) Contact surfaces 14a, 14b of flanges 11a, 11b
It is arranged on the side and is configured to be oriented parallel to the flanges 11a and 11b. FIG. 7 shows an example of a wiring method in the above configuration.

Effects of the Invention According to the present invention, as described above, the bobbin person and the bobbin B
A short-circuit convex terminal and four short-circuit terminals connected to the short-circuit wires of the respective armature windings are arranged on the protruding wall of the bobbin. After the and bobbin B are combined and integrated, they are attached to both magnetic path pieces of the stator, so that the lead wires for shorting the armature windings of bobbin A and bobbin B, which were previously provided, can be replaced. In addition, the work of attaching the stator to both magnetic path pieces can be done simultaneously on the bobbin man and the bobbin B, which significantly improves the assembly work.

[Brief explanation of the drawing]

Fig. 1 is a plan sectional view showing a conventional two-bobbin type permanent magnet rotor type synchronous motor, Fig. 2 is an exploded perspective view of the main parts,
3 is a plan view of the main parts, FIG. 4 is a wiring diagram, and FIG. 6 is a plan view of the main parts of a two-bobbin type permanent magnet rotor type synchronous motor showing an embodiment of the present invention. 7 is an exploded perspective view of the same essential parts, and FIG. 7 is a wiring diagram of the same. 1...Stator, 2a, 2b...Magnetic path C Ts 32L+3b...Magnetic pole part, 4...
- Permanent magnet rotor, 6a. 6b5. ...Bobbin B, 7&, 7b, mountain...armature winding, sa, ab...protruding wall,
12... Convex terminal for shorting, 13... Four terminals for shorting. .

Claims (1)

[Claims] A recess is provided inwardly at the end of the parallel side magnetic path piece of the stator having a substantially U-shape to form a magnetic pole part, a permanent magnet rotor is disposed in the recess, and an armature winding is wound. A protruding wall portion provided on each of the bobbin B and the bobbin B, which are equipped with a short-circuit convex terminal and four short-circuit terminals connected to the short-circuit wires of the respective armature windings, is provided. A permanent magnet rotor type synchronous motor, which is attached to the side magnetic path piece of the stator after the terminals and the four short-circuiting terminals are connected and bobbin A and bobbin B are combined and integrated.