JPS5845515Y2 - Installation structure of coil body and carrier in linear motor - Google Patents

Description

[Detailed description of the invention] The present invention relates to the mounting structure of a coil body and a carrier in a near motor, and in particular, when the coil body is attached to a carrier, the electrical connection of the coil to an external circuit is sometimes simultaneously established. Concerning what one chooses to do.

Generally, a record player called a linear tracking player uses a linear motor as shown in FIG.

A flat yoke 1 and a trapezoidal yoke 2 are fixed at both ends with screws 3 as shown in the figure, and a bobbin 5 wound with a coil 4 is loosely fitted into the yoke 1. A magnet 6 is installed on the inner surface of the yoke 2 and is magnetized vertically with S and N poles.

Further, a mounting plate 8 having a mounting hole 7 is connected to the bobbin 5, and a carrier 9 may be fixed to the mounting plate 8 by screws 10.

Further, the terminal 4a of the coil 4 is connected to an external circuit via a terminal 12 on a terminal plate 11 installed on the carrier 9.

In the linear motor having such a configuration, the coil body consisting of the coil 4 and bobbin 5 is attached to the carrier 9 with screws 10 or by a bonding method using an adhesive (not shown).

Separately, the coil 4 is connected to the external circuit by soldering or the like so that the terminal 4a is connected to the terminal 12 on the terminal board 11.
They may be connected one by one, or they may be connected by a more abbreviated method such as connector coupling.

For this reason, when disassembling, repairing, or maintaining the linear motor, the above-mentioned mechanical fastening and electrical wiring must be performed on the perfume, making the work for this troublesome.

The present invention aims to improve the above-mentioned inconvenience of attaching the coil body to the carrier of such a conventional linear motor.Therefore, the object of the present invention is to mechanically fasten the coil body to the carrier. The present invention also proposes a new technique for easily and simultaneously making electrical connections to external circuits.

Embodiments of the present invention will be described below with reference to FIGS. 2 and 3.

That is, the same parts as in FIG. 1 are given the same reference numerals, and the explanation thereof will be omitted.

Here, 13 is two terminal boards, as shown in Fig. 3.
It consists of a conductive member bent into a U-shape, and a through hole 14a and a screw hole 1 are provided in the center of the overlapping part.
4b is provided.

These terminal plates 13 can be easily fitted into a mounting plate 8 connected to the bobbin 5 from the lateral direction.

Further, the terminal 4a of the coil 4 is connected to these terminal plates 13 in advance by soldering or the like.

Note that the through hole 7 on the mounting plate 8 and the through hole 14 in the terminal plate 13
a and the screw hole 14b communicate with each other.

On the other hand, a printed circuit 16 communicating with an external circuit is provided on the upper surface of the carrier 15 via an insulating member, and a through hole 17a communicating with the through holes 7, 14a and the screw hole 14a is provided at the end thereof. It is being

In such a configuration, in order to connect the coil body to the carrier 15, the terminal 4 of the coil 4 must be connected as described above.
Insert the terminal plate 13 to which a is connected into the mounting plate 8 as described above, abut the carrier 15 against the lower part of the mounting plate 8, and make the through holes γ, 14a, 17a and screw hole 14b communicate with each other, The screws 17 are inserted from below and screwed into the screw holes 14b.

The coil body is thus firmly fixed to the carrier 15, and the coil is simultaneously connected to an external circuit via the printed circuit 16 on the carrier 15.

As described above, according to the present invention, in a linear motor having a coil body that runs in a straight line along a magnet and a carrier driven by this coil body, the coil body is connected to a bobbin of the coil body. a mounting plate, a terminal plate connected to the terminal of the coil wound on the bobbin and made of a conductive member that can be fitted into the mounting plate, and a printed circuit provided on the carrier and communicating with an external circuit. The terminal board and the carrier are mechanically fastened to the mounting plate, and at the same time the coil and the external circuit are electrically connected. Electrical connections to external circuits used to be made at different times for each operation, but this has been improved and can now be done at the same time, making assembly work more efficient and serviceable, making it more practical. It will be extremely beneficial.

Furthermore, there is a practical advantage that the configuration for obtaining such an effect is simple and inexpensive.

[Brief explanation of the drawing]

The drawings serve to explain the present invention, and FIG. 1 is a perspective view of the main parts showing the assembly structure of a conventional linear motor, and FIG. 2 is a perspective view of the main parts showing the assembly structure of the linear motor according to the invention. FIG. 3 is also a sectional view of the main part. 4... Coil, 5... Bobbin, 6... Magnet, 8... Mounting plate, 13... Terminal board, 15... Carrier, 16... Printed circuit.

Claims (1)

[Scope of utility model registration request] A linear motor has a coil body that runs in a straight line along a magnet, and a carrier that is driven by the coil body. a terminal plate made of a conductive member to which the terminal of the coil is connected and which can be fitted into the mounting plate;
A printed circuit provided on the carrier and communicating with the external circuit is provided, and the terminal board and the carrier are mechanically fastened to the mounting plate, and at the same time, the coil and the external circuit are electrically connected. Mounting structure of coil body and carrier in near motor.