JPH019147Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device that allows easy connection of a capacitor for preventing noise from a motor or the like.

2. Description of the Related Art Conventionally, for example, motors are provided in automobiles for various purposes, and noise is generated from the motors while they are rotating. If you are receiving AM or FM radio at this time, the noise from the motor may make it difficult to hear the radio.

As a countermeasure against this problem, a capacitor for noise prevention is connected inside the motor or to the lead wire of the motor.

A circuit diagram in this case is shown in FIG. That is, the battery 10, the fan motor 20, and the transistor 30 for controlling the speed of the fan motor 20 are connected in series. The speed control circuit 31 changes the base current applied to the base of the transistor 30, thereby controlling the rotation speed of the motor 20. In this case, even if the transistor 20 is used as a series resistor for the motor 20 or as a chopping transistor, the motor 2
Noise is generated from 0. To prevent this,
A capacitor 40 is connected in parallel with the motor 20. The capacitor 40 can be connected by caulking it inside the motor 20, or by connecting it to the + side lead wire of the motor 20.
1 and the lead wire 22 on one side are soldered.

However, in the above method of connecting the capacitor, the operation of connecting the capacitor 40 itself, such as caulking or soldering, is complicated, and the insulation process must be performed after the connection, and this insulation process is also complicated. There's a problem.

The present invention was developed with a focus on these problems, and it not only facilitates the connection operation when connecting a noise prevention capacitor to various devices, but also reduces the need for subsequent insulation treatment. It is an object of the present invention to provide a capacitor mounting device that can be easily mounted.

In order to achieve such an object, the present invention includes a holder made of an insulating material, two conductive blades fixed within the holder, and a noise prevention capacitor connected between these two blades. It is characterized by having the following.

Hereinafter, the present invention will be described in detail based on embodiments shown in the accompanying drawings. FIG. 2 is a perspective view showing an embodiment of the present invention. The holder 50 is made of an insulating material and has a base 60 and a lid 70. base 6
0 is a groove 6 for storing the lead wires 21 and 22.
It has 1,62. Note that the lead wires 21 and 22 have insulation coatings 23 and 24 made of vinyl or the like, respectively. Further, the base 60 has hook parts 63, 6
4 and 65, and a groove 66 for housing the capacitor 40.

On the other hand, the lid part 70 has grooves 71 and 72 for holding the lead wires 21 and 22, respectively, and a capacitor 4.
It has a groove 76 for storing 0. Conductive blade portions 81 and 82 are fixed in grooves 71 and 72, respectively, and connected to terminals 41 and 42 of capacitor 40. These conductive blades 81 and 82 tear the coatings 23 and 24 and come into electrical contact with the lead wires 21 and 22 when the holder 50 is closed by abutting the lid 70 against the base 60.

Next, the operation of the above embodiment will be explained. First, open the holder 50. Here, conductive blade parts 81, 82
are fixed at the positions shown in FIG.
0 terminals 41 and 42 are connected. Coating 2
After leading the lead wires 3 and 24 to the terminals 61 and 62 of the base 60, the lid 70 is closed. At this time, the hook parts 63 to 65
As a result, the lid portion 70 is abutted against the base portion 60 to maintain the holder 50 in a closed state, and the conductive blade portions 81 and 82 tear the coatings 23 and 24, respectively, and come into contact with the lead wires 21 and 22. This means that the capacitor 40 is connected between the lead wires 21 and 22. This state is shown in a perspective view in FIG.

Therefore, if the motor 20 is connected between the lead wires 21 and 22, the capacitor 40 is connected in parallel with the motor 20. In this case, lead wires 21 and 22 are guided to the holder 50,
Just by closing the holder 50, the capacitor 40
The connection operation is easy.
Further, since the holder 50 is made of an insulating material, there is an advantage that there is no need to perform any particular insulation treatment after connecting the capacitor.

FIG. 4 is a perspective view showing another embodiment of the conductive blade used in the present invention. This embodiment is a conductive blade part 83 having a U-shaped groove-shaped blade part 83a in a part of a flat metal plate, and a terminal 41 of a capacitor 40 is connected to the bottom of the groove 83a. In addition, the U-shape of the groove-shaped blade portion 83a may be
You may also make it into a letter shape.

Note that the shape of the holder 50 may be changed as appropriate, and the installation positions of the conductive blade portions 81, 82, and 83 may also be changed as appropriate. Further, the present invention can be applied not only to motors for automobiles but also to other noise sources other than motors.

As described above, the present invention includes a holder made of an insulating material, two conductive blades fixed within the holder, and a noise prevention capacitor connected between these two blades. When connecting the noise prevention capacitor to various devices, the present invention has the effect that the connection operation can be facilitated, and the subsequent insulation treatment can be facilitated.

[Brief explanation of drawings]

Figure 1 is a circuit diagram showing a case where a capacitor is connected in parallel to a motor as a conventional noise source.
The figure is a perspective view showing one embodiment of the present invention, FIG. 3 is a perspective view showing the above embodiment when closed, and FIG.
The figure is a perspective view showing another embodiment of the conductive blade. 21, 22... Lead wire, 23, 24... Covering, 50... Holder, 60... Base, 61, 6
2, 66, 71, 72, 76...groove, 70...lid part, 81, 82, 83...conductive blade part.

Claims (1)

[Scope of utility model registration request] A noise prevention capacitor comprising a holder made of an insulating material, two conductive blades fixed in the holder, and a noise prevention capacitor connected between these two blades. Mounting device.