JPH0734477Y2 - Ventilation structure of electric horn - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric horn used for automobiles and motorcycles.

[0002]

2. Description of the Related Art An electric horn is generally provided with a ventilation structure for allowing the inside of the horn to ventilate with the outside air. However, when it is installed in a place where rainwater is splashed, the ventilation structure vents air. At the same time, the vibration of the horn may even draw water into the horn body. Therefore, it is necessary to have a ventilation structure that does not draw in water, that is, has a high waterproof property. Conventionally, there has been used a ventilation membrane having selective permeability that allows air to pass through and repels water, or a ventilation pipe bent in an L shape. Was known.

[0003]

Among the ventilation structures with high waterproofness described in the prior art, the former has a problem that the ventilation membrane is expensive, and the latter has many problems in attaching the ventilation pipe to the horn body. However, there is a problem in that the work process is required and the cost increases.

The present invention has been made in view of the above problems of the prior art, and its object is to provide a member constituting an electric horn without using new parts. The present invention aims to provide a ventilation structure that is inexpensive and highly waterproof.

[0005]

In order to achieve the above object, the present invention provides a vehicle-side connector, a horn-side terminal for electrically connecting with the vehicle-side connector, and an electrical connection with the horn-side terminal. And a rivet for fixing the terminal on the horn side for supplying power to the inside of the horn body. In that case, the horn side terminal and the vehicle side connector inserted into the terminal constitute a ventilation passage communicating with the opening, and the horn side terminal is provided in the horn side terminal communicating with the ventilation passage. The air chamber and the ventilation passage communicate with the inside of the horn body through a gap formed by the rivet and the horn-side terminal.

[0006]

EXAMPLES Examples will be described with reference to the drawings. 1
Reference numeral 0 is a vehicle-side connector. Reference numeral 20 denotes a horn side terminal, which is composed of a terminal housing 22 and a terminal 23 and is electrically connected to the vehicle side connector 10. Reference numeral 30 denotes a rivet, which fixes the horn-side terminal 20 to the horn body 40 and electrically connects to the terminal 23 of the horn-side terminal 20 to supply power to a vibration generator (not shown) inside the horn body. Reference numeral 50 is a diaphragm driven by a vibration generator to generate a sound. Reference numeral 60 denotes a resonance plate, which is the vibration plate 50.
Resonates with and emits a large sound. 70 is a horn body 40
Is a stay that is attached to the vehicle. The components of the electric horn described above are basically the same as those of the conventional one, and the features of the present invention will be described below.

The terminal housing 22 is opened in the direction in which the vehicle side connector 10 is inserted, and the opening 24 is opened in the direction of gravity when the electric horn is mounted on the vehicle. The horn-side terminal 20 and the vehicle-side connector 10 inserted into the terminal 20 form a ventilation passage 25 that communicates with the opening 24 when both are inserted and fitted. An air chamber 26 communicating with the ventilation passage 25 is provided inside the horn-side terminal 20.
Then, a ventilation passage 27 communicating with the air chamber 26 is formed.
The larger the volume of the air chamber 26 is, the more the waterproof performance is improved. Further, the air chamber 26 and the two ventilation passages 25 and 27 communicating with the air chamber 26 are arranged in an L-shaped bent positional relationship. Preferably. Then, a gap 32 formed by the rivet 30 and the horn-side terminal 20.
Penetrates the horn body 40 and reaches the inside of the horn body, and the ventilation passage 27 communicates with the inside of the horn body through a gap 32.

[0008]

Since the present invention is configured as described above, it has the following effects. In obtaining a highly waterproof ventilation structure, no special parts are required as in the conventional case, and therefore an inexpensive electric horn can be provided. Also,
Water resistance is the watering condition under JIS "S1" watering,
Even if the sound for 1 second and the pause for 59 seconds are repeated for 1 hour, the inside of the electric horn body is not flooded and high waterproofness can be obtained.

[Brief description of drawings]

FIG. 1 is a partial sectional side view of a main part showing a ventilation structure of an electric horn.

FIG. 2 is a partial cross-sectional side view of a main part of a ventilation structure.

FIG. 3 is a partial cross-sectional plan view of a main part of the ventilation structure.

FIG. 4 is a partial cross-sectional plan view of a main part according to another embodiment of the ventilation structure.

[Explanation of symbols]

 10 Vehicle side connector 20 Horn side terminal 25,27 Ventilation path 26 Air chamber 30 Rivets 32 Void 40 Horn body

Claims (1)

[Scope of utility model registration request] 1. A ventilation structure of an electric horn for ventilating the inside of a horn body with outside air, comprising: a vehicle-side connector; a horn-side terminal electrically connected to the vehicle-side connector; and an electrical connection to the horn-side terminal. And a rivet for fixing the terminal on the horn side for supplying power to the inside of the horn body. In that case, the horn side terminal and the vehicle side connector inserted into the terminal constitute a ventilation passage communicating with the opening, and the horn side terminal is provided in the horn side terminal communicating with the ventilation passage. The ventilation structure for an electric horn, wherein the air chamber and the ventilation passage communicate with the inside of the horn body through a gap formed by the rivet and the horn-side terminal.