JP4265317B2 - Stepping motor coil bobbin winding manufacturing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coil bobbin manufacturing method and a winding processing method for a stepping motor used in the field of information equipment and video equipment.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in order to prevent coil breakage at a motor coil terminal portion, a method of preventing looseness by applying slack to the winding start and winding end portions of a magnet wire wound around a coil has been implemented (for example, Patent Document 1). reference). FIG. 4 shows a conventional winding method described in Patent Document 1.
[0003]
According to FIG. 4, a comb-like projection 35 is placed on the side of the terminal pin 27 protruding from the coil bobbin 24 of the step motor, and the magnet wire 26 is entangled with the terminal pin 27. The protrusion 35 has a tip that does not protrude toward the body portion of the bobbin 24. In this state, the nozzles 32 and 33 are moved down to the position of the body and then lowered, and the spindle 31 to which the bobbin 24 is attached is rotated once. Then, the wire 26 is wound around the protrusion 35. Thereafter, the nozzles 32 and 33 are raised, and the spindle 31 is rotated to wind a coil. Then, the terminal 26 is entangled with the other terminal pin 28 in a state where the wire 26 is hooked on the protrusion 35 again. Then, each terminal pin is soldered and removed from the protrusion 35. As a result, slack is imparted to the winding start and winding end portions of the magnet wire wound around the coil to prevent disconnection.
[0004]
[Patent Document 1]
JP-A-4-239707 (page 5, FIG. 1)
[0005]
[Problems to be solved by the invention]
However, since the pitch between the terminals is reduced along with the demand for miniaturization of the motor, it has become difficult to take measures against disconnection by sagging the wire by inserting or removing a jig between the pitches.
[0006]
The present invention solves such a conventional problem, and an object of the present invention is to provide a winding method in which a wire is slackened even in a coil bobbin having a narrow pitch between terminals to prevent disconnection.
[0007]
[Means for Solving the Problems]
In order to solve the above problem, the present invention inserts the terminal of the coil bobbin from the bottom of the terminal groove to the front, winds the coil winding start and winding ends around the terminal, and then pushes the terminal into the terminal groove. This realizes slack in the line. This makes it possible to take measures against disconnection without inserting or removing the jig between the terminals.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Winding manufacturing method of the stepping motor coil bobbin emissions of claim 1 to solve the aforementioned problem, a plurality of terminals, and the winding frame by resin molding for the stator coil windings, one side of the winding frame a terminal holding portion provided on, provided in the terminal holding portion, said a plurality of winding manufacturing method of the stepping motor carp Rubo bottle and a terminal groove inserting the terminal, a groove for the terminal the are those spaced grooves towards the vertical and the winding frame to the longitudinal direction of the terminal, winding the terminals and inserted into the terminal groove, each pin winding end-winding start coil after, in which further pushed towards the bobbin to and perpendicular to the longitudinal direction of said terminal along the terminal groove pin.
[0009]
【Example】
An embodiment of the present invention will be described below with reference to the drawings.
[0010]
Example 1
Example 1 is a stepping motor coil bobbin and a winding manufacturing method thereof.
[0011]
FIG. 1 shows a coil bobbin before winding. The reel 1 is produced by a resin molded product. One side of the reel has a part 2 for holding the terminal. A terminal insertion groove 3 is formed in the terminal holding portion 2. The terminal 4 is inserted into this groove not to the bottom but to the near side. If necessary, the holding strength may be increased by bonding or welding the terminals.
[0012]
Further, in FIG. 1, the terminal and the groove shape are both round (cylindrical), but they may be oval, rectangular parallelepiped or cube.
[0013]
Next, the winding process will be described.
[0014]
In FIG. 2, a coil bobbin is attached to the winding machine. First, the coil wire 5 that starts to be wound around the coil bobbin terminal 41 is wound around the coil bobbin terminal several times around the bald processing unit 51 and held. Subsequently, the winding machine is rotated to fill the coil bobbin winding frame with the coil wire 5. From the other coil bobbin terminal, the coil wire 5 at the end of winding is wound around the terminal and wound around the terminal several times in the same manner as at the beginning of winding. Thereafter, the terminals at the start of winding 41 and the end of winding 42 are pushed into the terminal groove depth direction in a state where the terminals are tangled.
[0015]
Thereby, the coil connecting wires 61 and 62 extending from the terminal to the bald portion shown in FIG. 2 can be changed to the coil connecting wires 63 and 64 having slack as shown in FIG.
[0016]
1, 2, and 3 show the case of two terminals, the same effect can be obtained by the same operation even when there are three or more terminals.
[0017]
【The invention's effect】
As apparent from Example 1 above, according to the first aspect of the present invention, the terminal is inserted from the bottom surface of the terminal groove to the front, and the coil winding start and winding end are wound around the terminal, respectively. By further pushing the terminal into the terminal groove, a sufficient slack can be provided, so that disconnection can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view of a coil bobbin in Embodiment 1 of the present invention. FIG. 2 is a perspective view of a coil bobbin and a winding before re-pressing a terminal in Embodiment 1 of the present invention. FIG. 4 is a perspective view of a coil bobbin and windings that are pressed to give a slack. FIG. 4 is a diagram of a conventional example of Japanese Patent Laid-Open No. 4-239707.
DESCRIPTION OF SYMBOLS 1 Coil bobbin winding frame part 2 Terminal holding part formed in the coil bobbin end surface 3 Terminal insertion groove provided in the terminal holding part 4 Terminal 5, 26 Coil (magnet wire)
24 Coil bobbins 27, 28 Terminal pins 31 projecting from the coil bobbin 31 Spindle 32, 33 Nozzle 35 Comb-like projection 41 Coil winding start connection (for curling) terminal 42 Coil winding end connection (for curling) terminal 51 Coil winding start Terminal connection (bending) processing unit 52 End of coil winding terminal connection (bending) processing unit 61 Crossover wire at the beginning of coil winding before re-pressing the terminal 62 Crossover wire at the end of coil winding before re-pressing the terminal 63 After re-pressing the terminal Crossover 64 at the beginning of coil winding Crossover at the end of coil winding after re-pressing the terminal

Claims (1)

A plurality of terminals , a resin-molded winding frame for the stator coil winding, a terminal holding portion provided on one side of the winding frame, and a terminal for inserting the plurality of terminals provided in the terminal holding portion a winding method for manufacturing a stepping motor carp Rubo bottle and a groove,
The terminal groove is a groove perpendicular to the longitudinal direction of the terminal and toward the winding frame,
And insert the pin in the groove for the terminal, then wound to each terminal the winding end-winding start coil,
Winding manufacturing method of the stepping motor coil bobbin down, characterized in that pushed further toward the winding frame and in a direction perpendicular to the longitudinal direction of the terminal along the pin in the groove for the terminal.

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