JPS61154017A - Solenoid - Google Patents

Abstract

PURPOSE:To contrive reduction of the number of pats and assembly steps by arranging a pair of flexible pieces on both ends of a bobbin and holding a frame by the first click arranged on the opposite plane to said flexible pieces and arranging the second click for engagement to a mechanical board on any of the planes except the plane on which the first click is arranged. CONSTITUTION:For the assembly processes, after inserting a fixed iron core 15 into a center hole 13o of a bobbin 13 on which a coil 16 is wound, a frame 11 is inserted in the groove between ribs 13a, 13b and 13c, 13d. Then clicks 13e-13h of the bobbin 13 are forced to be extended by inclination of clicks 11c-11f and the frame is driven into untill the frame 11 reaches the stoppers 13p and 13q of the bobbin thereby engaging the clicks mutually. Movable iron core 14 is inserted in a hole 13o of the bobbin 13. For attaching it to the mechanical board 18, the ribs 13a-13d of the bobbin 13 are adjusted to openings 18c-18f and driven into them so that clicks 13i-13l of the bobbin 13 re narrowed toward the central direction by inclination of the front ends to be driven into them till stoppers 13m and 13n contact the mechanical board 18 thereby engaging the clicks 13i-13l in the mechanical board 18.

Description

[Detailed description of the invention] Industrial applications The present invention relates to solenoids.

Conventional situation In recent years, tape recorders and video tape recorders.

Consumer mechanical devices such as cameras are required to be smaller and easier to operate, and electronic control is rapidly progressing.

Solenoids have often been used as electromechanical converters for electronic control.

A conventional solenoid will be described below with reference to the drawings.

6 and 6 show a conventional plunger type solenoid. In Fig. 6, 1 is the main body frame, 2 is the front 7 frame, 3 is the pobin, 4 is the movable iron core, 5
is a fixed iron core. The pobbin 3 is provided with seven flange portions 3a and 3b at both ends for winding the coil 6, and has an opening in the center for guiding the movable iron core 4° and the fixed iron core 6.

In this plunger type solenoid, the constricted portion 6a of the fixed iron core 5 is inserted into the opening approximately in the center of the end surface 1d of the U-shaped frame 1.
Insert and squeeze. After the terminal 1 is attached and the coil 6 is wound, the opening in the center of the pobbin 3 is inserted into the fixed iron core 6.
5. Next, insert and position the /g 3C provided on the end face of the movable iron core side of the pobbin 3 and the opening in the center of the front frame 2, and the front frame 2 is inserted into the main body frame 1.
The edge is assembled by tightening the A-D section to the open end of the. To attach the solenoid to the main unit (not shown), use the opening 1b on the protrusion 1a that is an extension of a part of the frame 1, or screw it using the female screw 1C arranged on the frame 1. was.

Problems to be Solved by the Invention However, in the above configuration, the number of component parts is large, and installation of the fixed iron core 6 and installation of the front frame 2 requires tightening work, which requires a large number of man-hours. was. Further, there was a problem in that mounting to the main device board required screws and screw tightening work.

Means for Solving the Problems In order to solve the above problems, the solenoid of the present invention has the following features:
A pair of elastic pieces are provided at both ends of the synthetic resin pobin, and when the elastic pieces are installed on opposing surfaces, the first claw holds the frame and the direction in which the elastic piece is deflected by the first claw. A second pawl is provided in a direction perpendicular to , and the mechanical board is held by the second pawl.

Operation According to the above-described structure, the present invention requires only one solenoid frame, and can be made thinner by the thickness of the frame in order to use the main device board as the frame.

Embodiments A plunger type solenoid according to the present invention will be explained with reference to the drawings of embodiments.

Figures 1 to 4 show a Granger type renoid according to a first embodiment of the present invention. In Figure 1,
11 is a U-shaped frame, 13 is a pobin, 14 is a movable iron core, and 16 is a fixed iron core.

Lips 13a, 13b and 1 are provided on both sides of the pobbin 130.
A groove is formed between 3c and 13d, into which the bent portions at both ends of the U-shaped frame 11 are inserted, allowing left and right positioning.

Further, the lips 13a to 13d are cut from the pot bin body by a collar at a portion below the substantially central portion, and are formed into four elastic pieces. The four elastic pieces are formed with claws 13e to 13h (the claw 13h is not shown in the drawing, but is formed on the lip 13d) for fixing the frame 11,
Claws 131 to 131 for fixing the pobbin 13 to the mechanical board 18 are formed below it.

Next, we will explain the assembly procedure of the solenoid and the procedure for attaching the solenoid to the mechanical board. Wind the coil 16 with nine pobins 1
After inserting the fixed iron core 16 into the central opening 13o of the frame 13, the frame 11 is inserted into the groove between the lips 13a, 13b, and 13C213d.

~H is expanded, and 7 rams 11 are pobin stoppers 13
By pushing in until they come into contact with p and 13q, the claws engage with each other. Next, move the movable iron core 14 into the opening 13 of the pobbin 11.
When inserted into the hole, the solenoid is completed as shown in Figure 2.

Next, to attach the solenoid to the mechanical board 18,
Opening hole 18c corresponding to lip 13a of pobin 13 13d
~ 181 and push it in, the claw 131 of pobin 13 ~
131 is narrowed toward the center due to the slope of the tip,
By pushing the stoppers 13m and 13n until they come into contact with the mechanical board 18, the claws 13i to 131 engage with the mechanical board 18 as shown in FIG. 4, and the attachment is completed.

Projecting pieces 11 a, 11 bi, l-1 of frame 11
It is inserted into the openings 18a and 1ab of the IIIs plate 18, the frame 11 and the mechanical board 18 are brought into close contact, and a magnetic path can be reliably formed.

Effects of the Invention As described above, the present invention makes use of the elasticity of the synthetic resin pobbin to connect the pobbin to the frame and the pobin to the mechanical board without using any fastening members or the like, and also eliminates the need for labor-intensive work such as storing. , it can be assembled by simply pushing it in with one touch, reducing the number of parts and assembly man-hours.

[Brief explanation of drawings]

Fig. 1 shows a practical example of the solenoid of the present invention, where A is a front view, the mouth is a side sectional view, and Fig. 2 is a sketch of the solenoid.
Fig. 3 is an exploded sketch of the solenoid, Fig. 94 is an explanatory diagram of the solenoid attached to the mechanical board, Fig. 6 shows a conventional solenoid, A is a front view, the mouth is a side sectional view, and Fig.
The figure is a sketch of the solenoid. 11...Frame, 13...Pobin,
14...Movable iron core, 16...Fixed iron core, 1
6... Coil, 18... Name of mechanical board agent Patent attorney Toshio Nakao and 1 other person l4
...I Hatsukoribe No. 2121 Figure 3 Figure 4 Figure 5 t A)
19° Fig. 6 1c 1 ( fl, -

Claims (1)

[Claims] A pair of elastic pieces are provided at both ends of the pot, and the frame is held by first claws provided on opposing surfaces of the elastic pieces, and a mechanism is attached to one of the surfaces other than the first claw. A solenoid characterized by being provided with a second pawl for engaging with a substrate.