JPH0676690A - Rotary electronic component - Google Patents

Abstract

PURPOSE:To provide a rotary electronic component for use mainly in equipment mounted in automobile steering or the like and capable of providing stable electric signals. CONSTITUTION:A plate spring 6 is mounted in a case 1 and the bahavior of a rotor 2 during rotation is regulated in one direction by the force F of the plate spring 6 having one end held by the spring holding portion 1c of the case 1. The contact between a contact 5 and an insulating substrate 3 is stabilized so as to provide stable electric signals.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary type electronic component such as a position angle sensor used for steering of an automobile.

[0002]

2. Description of the Related Art A conventional rotary electronic component is shown in FIGS.
Will be described. According to the figure, 1 is a case having an opening and a stepped portion for receiving the rotor 2 on the upper surface, and 3 is a printed pattern and an external conduction terminal 4 fixed by caulking or the like to obtain a desired electric signal. It is an insulating substrate and is placed on the lower surface of the case 1. Reference numeral 5 denotes a contact, which is fixed to the rotor 2. The rotor 2 is a claw portion 1 provided on the case 1.
It is incorporated so that it does not stick out to the outside due to a.

According to this structure, when the rotor 2 is rotated, the contact 5 is rotated to a desired position of the printed pattern on the insulating substrate 3 and the desired electrical signal is taken out by the external conduction terminal 4. is there.

[0004]

However, in the conventional rotary type electronic component described above, it is necessary to provide a gap 1b for preventing heat shrinkage between the rotor 2 and the case claw 1a. However, when the rotor 2 is rotated, the rotor 2 freely swings in the gap 1b, so that stable contact cannot be obtained between the contact 5 and the insulating substrate 3, and the electric signal is not stable. there were.

The present invention is intended to solve such a conventional problem, and an object thereof is to provide an excellent electronic component capable of obtaining a stable electric signal.

[0006]

In order to solve the above problems, the present invention provides a case with a spring for pressing a rotor.

[0007]

Therefore, according to the present invention, by providing the case with the spring, the rotor is pressed and the contact between the contact and the insulating substrate is stabilized, and a stable electric signal can be obtained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the rotary electronic component of the present invention is shown in FIGS.
This will be described with reference to FIG. The same parts as those of the prior art will be designated by the same reference numerals, and the description thereof will be omitted. A leaf spring 6 is provided to hold down the rotor 2, one end of which is held by the case 1 by caulking or the like. According to this structure, when the rotor 2 is rotated, the spring force F presses the rotor 2 toward the rotor holding step portion 1d side between the gaps 1b, the fist of the rotor 2 is stabilized, and a stable output is obtained. It is a thing.

FIG. 3 shows an essential part of another embodiment, in which the spring 6a is formed integrally with the case and has the same effect.

[0010]

According to the present invention, as is apparent from the above embodiment, the spring force F of the spring is used to press the rotor,
By stabilizing the contact of the contact, a stable electric signal can be obtained.

[Brief description of drawings]

FIG. 1 is a side sectional view of an embodiment of a rotary electronic component of the present invention.

FIG. 2 is a top view of the electronic component.

FIG. 3 is a side sectional view of an essential part of the other embodiment.

FIG. 4 is a side sectional view of a conventional rotary electronic component.

FIG. 5 is a top view of the same.

[Explanation of symbols]

 1 Case 1a Claw 1b Gap 1c Spring Holding 1d Rotor Holding Step 2 Rotor 3 Insulating Substrate 4 External Conduction Terminal 5 Contact 6 Spring

Claims (1)

[Claims] 1. A substrate having at least an opening provided with a step inside a wall having a claw at the top, a substrate having an external conduction terminal provided at the bottom of the case, and the substrate. A rotary electronic component having a rotor mounted on the step portion of the case, which has a contact sliding on the top, and a spring which is integral with or separate from the case for pressing the rotor.