JPS6258863A - Pm type stepping motor with connector - Google Patents

Abstract

PURPOSE:To obtain the economical motor with a connector of simple structure and easy production, by fitting a female type connector on the outer peripheral section of a stator, and by inserting a ribbon-formed lead wire into the connector to form a feeding path. CONSTITUTION:On the outer peripheral surface of an exciting stator 3, a female type connector section 4B is set, and the terminal spring 9 is arranged to be connected to a stationary coil end 6. A ribbon-formed lead wire 10 is inserted into the connector section 4B, and electrical conduction is carried out. By this method, the structure of the connector section of a motor is simplified, and the assembling property is improved, and the mass production can be realized, and the cost can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a structure of a lead portion of a PM type stepping motor.

[Invention ■Summary]

The present invention is directed to the lead part F of a PM type motor. t
At the t age, by arranging a female connector on the outer periphery and inserting a ribbon-shaped lead wire into the female connector to make a conductive connection, it is easy to assemble and the structure of the PM type stepping motor is simplified. And inexpensive PM with connector
type stepping motor.

[Conventional technology]

PM type stepping motors are roughly divided into rotors 1 and 2 as shown in Figure 2. Bearing 2. Exciting stator 3, fixed coil 4
．． ll with lead wire 5! It has been collected.

Conventionally, the fixed coil 4 and the lead wire 5 have been electrically connected to the fixed coil 4 and the lead wire 5 consisting of four or six wires. The above-mentioned conductive connection method is to connect the fixed coil terminal 6'1 to the lead wire fixed coil side conductor portion 5A by soldering.

In this case, the fixed coil 4 and the soldered lead wire fixed coil side conductor portion 5A were insulated with an insulating tape 7, and the lead wire 5 was fixed with a fixing tape 8.

[Overview and Objectives to be Solved by the Invention] However, in the prior art described above, α) the work of connecting the fixed coil, the lead wire, and the Q conduction, and fixing the lead wire with a fixing tape are very complicated.

b) When connecting a PM type stepping motor to an external board, power supply, etc. via lead wires, there are methods using soldering or connectors, but the positioning of the lead wires during soldering is complicated.

・The method using connectors has a complicated structure, which causes an increase in costs.

There was a problem.

The present invention solves these problems and provides a PM type stepping motor with a connector that is easy to manufacture, easy to manufacture, and inexpensive.

[Means to solve the problem]

The PM type stepping motor with a connector of the present invention is characterized in that a female connector is disposed on the outer periphery, and a ribbon-shaped lead wire is inserted into the female connector to establish a conductive connection.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

In Fig. 1, an internally excited stator 3A is inserted and injection molded into a coil frame 4A, a connector part 4B, and a bearing part 2.
Ay & Ni are integrally molded. Holes are formed at four or six locations in the connector section, and the terminal springs 9 are set therein. Furthermore, after winding the fixed coil 4, the fixed coil terminal 6 is tied to the terminal spring 9, and soldering is performed to conductively connect the fixed coil terminal 6 to the terminal spring 9. Further, the insulating tape 7 insulates the terminal spring 9 and the fixed coil 4.

It is assembled with externally excited stator '3 Bj bearing 2 and rotor 1 to make a complete PM type stepping motor of 51 products, and finally has 4 or 6 ribbon-shaped leads 10 with 4 or 6 conductor parts. Insert into terminal spring 9.

According to Tomazo, the ribbon-shaped leads are inserted after the PM-type stepping motor is assembled, making it easier to assemble the PM-type step-rubbing motor.

Figure 3 shows an example of the method for conducting electrical connection between the fixed coil terminal 6 and the terminal spring 9. After winding the fixed coil, the fixed coil terminal 6 is attached to the terminal spring 9 in the position of the user, and the soldering process is performed. After making a conductive connection, it is bent to the BQ position. According to this method, it is possible to automate the winding, winding, and soldering of the fixed coil.

In Figure 4, the fixed coil is unifier-wound ■4 conductor wires I
t) It shows the ribbon-shaped lead 10 with A and the connector part 4B. If the fixed coil is bifilar-wound, the connector portion will have a ribbon-like lead with six O conductors and six terminal springs.

Figure @5 is an example using the 0 connector method when making a conductive connection to the circuit board. The above structure allows the ribbon-shaped leads to be directly inserted into the board-side connector 11, so that the structure is simple and inexpensive conductive connection can be made. Furthermore, even when soldering directly to a circuit board, since the pitch of the conductor wires of the ribbon-shaped leads is equal, positioning is easy and workability is improved.

FIG. 6 shows the ribbon-shaped -FlO? It has a structure in which a lead hold 12 is attached to hold it, and the reliability of the connector part is improved.

〔Effect of the invention〕

According to the present invention, since the PM type stepping motor employs a female connector and a ribbon-shaped lead, the PM type stepping motor is easy to assemble, and the conductive connection to the circuit board, power supply, etc. is simple and workable. This makes it possible to make a PMW stepping motor that is mass-producible and inexpensive.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a PM type stepping motor with a connector according to the present invention. Figure 2 is a cross-sectional view of a conventional PM type stepping motor. FIG. 3 is a sectional view showing the fixed coil terminal processing method according to the present invention. Figure @4 is a plan view of a PM type stepping motor with a connector according to the present invention. FIG. 5 is a diagram of the connector connection to the circuit board according to the embodiment of the present invention. Figure 6 is a structural diagram of the sail according to the present invention with a lead hold added. l...Rotor 2...Bearing 2 people...Bearing part 3...Excitation stator 3A...Inner excitation stator 3B...Outer excitation stator 4-...Fixed coil 4A...Coil frame 4Bee connector part 5I ... Lead wire 5A ... Lead wire fixed coil side conductor part 6 ... Fixed coil terminal 7 ... Insulating tape 8 ... Fixing tape 9 ... Terminal spring IO ... Ribbon-shaped lead 11 ... Board side connector 12...Lead hold A...Terminal spring 0 Vertical position before bending
$1 No. 10 Honor of the drawings (no changes to 19 valleys) Fig. 3 Chilled + concave $51Σ L continuation amendment 4□60.12,.26 B 1985 Patent application No. 193601 2 Name of invention with connector PM type stepping motor 1 Correction Nagisa 2-6-21 W, Kyobashi, Chuo-ku, Tokyo 104 (Wa 6
November 26, 0 & Contents of amendment (1) The drawings (Figures 2 and 5) are revised as attached 1Zo (no change in content).

Claims (1)

[Claims] 1. A PM type stepping motor with a connector, characterized in that a female type connector is disposed on the outer periphery of the PM type stepping motor, and a ribbon-shaped lead wire is inserted into the female type connector for conductive connection.