Automobile single-sound electric horn

Abstract

The utility model relates to a single-sound electric horn for a motor vehicle, in particular to an automobile single-sound electric horn, which comprises an electric horn body, and the electric horn body forms an electric horn sealing cavity through edge pressing and riveting of a bottom plate shell (2) and a diaphragm (3). A pressing plate (4), a first binding post (9), a second binding post (10), an electromagnetic coil (11), an iron core (12) and a mounting plate (13) are arranged on the bottom plate shell (2); the diaphragm (3) is provided with a resonance sheet (5) and an armature (6), the bottom plate shell (2) is provided with an air vent, the air vent is connected with an air bag (1) outside the electric horn sealing cavity, and the air bag (1) is communicated with an inner cavity of the electric horn sealing cavity; the electric horn solves the problems that various metal materials inside the electric horn are oxidized and rusted, and the service life is shortened, so that the electric horn can produce sound normally for a long time, and the working state is stable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a single sound electric horn for motor vehicle, specifically to a single sound electric horn for automobile. BACKGROUND

[0002] The structure of the single sound electric horn for motor vehicle is composed of a bottom plate shell, a diaphragm, a resonance sheet, an armature, an electromagnetic coil and an iron core; in the working state, the sealed cavity formed by the diaphragm and the bottom plate shell becomes smaller and larger alternately due to the up-and-down rebound of the diaphragm, which is repeated, so that the electric horn is like an air pump, which pushes the gas in the inner cavity of the electric horn out of the electric horn and sucks the air and water vapor outside into the inner cavity of the electric horn alternately, so that the electric horn continuously holds oxygen and water vapor, which easily causes the oxidation and rust of various metal materials inside the electric horn, shortens the service life, and even affects the normal sound and work of the electric horn. SUMMARY

[0003] The utility model discloses a technical scheme of a single sound electric horn for automobile, which solves the problem of oxidation and rust of various metal materials inside the electric horn, shortens the service life, and even affects the normal sound and work of the electric horn.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a single sound electric horn for automobile, comprising an electric horn body, wherein the electric horn body is formed by a bottom plate shell and a diaphragm through edge pressing and riveting to form an electric horn sealed cavity; the bottom plate shell is provided with a pressing plate, a first terminal post, a second terminal post, an electromagnetic coil, an iron core and a mounting plate; the diaphragm is provided with a resonance sheet and an armature; the bottom plate shell is provided with an air vent, which is connected with an air bag outside the electric horn sealed cavity, and the air bag is in communication with the inner cavity of the electric horn sealed cavity.

[0005] Further, the material of the air bag is rubber.

[0006] Further, the iron core is arranged in the electric horn sealed cavity, the screw end of the iron core is fixedly connected with the center hole of the bottom plate shell through a nut, and a mounting plate is arranged outside the sealed cavity and fixedly connected with the tail part of the screw end of the iron core through a nut.

[0007] Further, the pressing plate is riveted and fixed with the bottom plate shell, and an electromagnetic coil is fixed in the center cylindrical groove of the bottom plate shell.

[0008] Further, the first terminal post and the second terminal post are fixedly connected at the corresponding positions of the bottom plate shell, and the second terminal post is further fixedly connected with a fixed contact and a movable contact.

[0009] Further, the armature is arranged in a sealed cavity of the automobile electric horn, a screw end of the armature is fixedly connected with a center hole of the diaphragm through a nut, and a resonance sheet is arranged outside the sealed cavity and fixedly connected with a tail of the screw end of the armature through a nut.

[0010] Further, a large-diameter circular truncated cone end plane of the middle part of the armature is in contact with the movable contact and can drive the movable contact to move.

[0011] Further, the movable contact is made of elastic material.

[0012] Further, one end of the electromagnetic coil is connected with the first terminal post through a wire, the other end is connected with the movable contact through a wire, and the movable contact is conducted with the second terminal post through the fixed contact.

[0013] Further, the axis of the armature is coincident with the axis of the iron core.

[0014] Compared with the prior art, the automobile single-sound electric horn provided by the utility model is installed with an air bag, solves the problems of oxidation and rust of various metal materials in the electric horn and short service life, and enables the electric horn to normally sound for a long time and be stable and reliable in working state. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a front view of the automobile single-sound electric horn according to the utility model;

[0016] Figure 2 is Figure 1 a bottom view of the automobile single-sound electric horn.

[0017] As shown in the figure: 1-air bag, 2-bottom plate shell, 3-diaphragm, 4-pressing plate, 5-resonance sheet, 6-armature, 7-fixed contact, 8-movable contact, 9-first terminal post, 10-second terminal post, 11-electromagnetic coil, 12-iron core, 13-mounting plate. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be described clearly and completely in combination with the drawings.

[0019] As Figures 1 to 2 shown, an automobile single-sound electric horn comprises an electric horn body, wherein the electric horn body is formed by a bottom plate shell 2 and a diaphragm 3 through edge pressing and riveting to form an electric horn sealed cavity; the bottom plate shell 2 is provided with a pressing plate 4, a first terminal post 9, a second terminal post 10, an electromagnetic coil 11, an iron core 12 and a mounting plate 13; the diaphragm 3 is provided with a resonance sheet 5 and an armature 6; the bottom plate shell 2 is provided with an air vent, the air vent is connected with an air bag 1 outside the electric horn sealed cavity, and the air bag 1 is in communication with an inner cavity of the electric horn sealed cavity;

[0020] The connecting head of the air bag 1 and the air hole in the embodiment can be connected by adhesion, screw connection, clamping, etc., and preferably by clamping, which is simple and convenient.

[0021] As shown in Figure 1 , the material of the air bag 1 is rubber material;

[0022] The material of the air bag 1 in the embodiment can be plastic, nylon, rubber, etc., and preferably rubber material. The soft and folded rubber gas storage bag can easily store gas into the inner cavity of the electric horn, reduce the amount of oxygen and water vapor entering the inner cavity of the electric horn, reduce the oxidation degree of the electric horn and metal material, reduce the possibility of the electric horn not working normally, and improve the relative working life of the single-tone electric horn.

[0023] As shown in Figures 1 to 2 , the iron core 12 is arranged in the sealed cavity of the electric horn, and the screw end of the iron core 12 is fixedly connected with the center hole of the bottom shell 2 through a nut, and a mounting plate 13 is arranged outside the sealed cavity and fixedly connected with the tail of the screw end of the iron core 12 through a nut.

[0024] As shown in Figure 1 , the pressing plate 4 is riveted and fixed with the bottom shell 2, and an electromagnetic coil 11 is fixed in the center cylindrical groove of the bottom shell 2.

[0025] As shown in Figure 1 , the first terminal post 9 and the second terminal post 10 are fixedly connected on the corresponding positions of the bottom shell 2, and the fixed contact 7 and the movable contact 8 are further fixedly connected on the second terminal post 10.

[0026] As shown in Figure 1 , the armature 6 is arranged in the sealed cavity of the electric horn, and the screw end of the armature 6 is fixedly connected with the center hole of the diaphragm 3 through a nut, and a resonance sheet 5 is arranged outside the sealed cavity and fixedly connected with the tail of the screw end of the armature 6 through a nut.

[0027] As shown in Figure 1 , one large-diameter circular platform end plane in the middle of the armature 6 is in contact with the movable contact 8 and can drive the movable contact 8 to move.

[0028] As shown in Figure 1 , the material of the movable contact 8 is elastic material.

[0029] As shown in Figure 1 , one end of the electromagnetic coil 11 is electrically connected with the first terminal post 9, the other end is electrically connected with the movable contact 8, and the fixed contact 7 is in conduction with the second terminal post 10.

[0030] As shown in Figure 1 Figure 1As shown, the shaft center of the armature 6 coincides with the shaft center of the iron core 12.

[0031] In addition, the automobile single sound electric horn in the utility model is mature prior art and common knowledge, and the utility model will not be explained in detail.

[0032] The specific working principle of the utility model is as follows:

[0033] First, connect the air bag 1 through the connecting head of the air vent to the bottom plate shell 2 of the automobile single sound electric horn; then, fix and connect the mounting plate 13 of the automobile single sound electric horn to the corresponding position of the automobile; finally, fix and connect the two poles of the automobile power supply to the first connecting post 9 and the second connecting post 10 of the automobile single sound electric horn respectively, and the automobile single sound electric horn can work stably after the automobile power supply is conducted.

[0034] In the working state, due to the up-and-down rebound of the diaphragm 3, the electric horn sealed cavity formed by the diaphragm 3 and the bottom plate shell 2 becomes smaller and larger alternately, so that such electric horn is like an air pump, which extrudes the gas in the inner cavity of the electric horn to the air bag 1 outside the electric horn alternately, and then absorbs the gas in the air bag 1 to the inner cavity of the electric horn, and so on.

[0035] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and any simple modification, equivalent replacement, improvement and the like within the technical concept of the utility model should be included in the protection scope of the utility model.

Claims

1. A single-sound electric horn for automobiles, comprising an electric horn body, wherein the electric horn body is formed by a base shell (2) and a diaphragm (3) through edge riveting to form a sealed cavity for the electric horn; the base shell (2) is provided with a pressure plate (4), a first terminal (9), a second terminal (10), an electromagnetic coil (11), an iron core (12), and a mounting plate (13); the diaphragm (3) is provided with a resonant plate (5) and an armature (6), characterized in that: The bottom plate shell (2) has a vent, which is connected with an air bag (1) outside the sealed cavity of the electric horn, and the air bag (1) is communicated with the inner cavity of the sealed cavity of the electric horn.

2. A single sound electric horn for a vehicle according to claim 1, characterized in that: The material of the air bag (1) is rubber.

3. A single sound electric horn for a vehicle according to claim 2, characterized in that: The iron core (12) is arranged in the sealed cavity of the electric horn, the screw end of the iron core (12) is fixedly connected with the center hole of the bottom plate shell (2) through a nut, and a mounting plate (13) is arranged outside the sealed cavity of the electric horn and fixedly connected with the tail of the screw end of the iron core (12) through a nut.

4. A single sound electric horn for a vehicle according to claim 3, characterized in that: The pressing plate (4) is riveted with the bottom plate shell (2), and an electromagnetic coil (11) is fixed in the center cylindrical groove of the bottom plate shell (2).

5. A single sound electric horn for a vehicle according to claim 4, characterized in that: The first terminal post (9) and the second terminal post (10) are fixedly connected on the corresponding positions of the bottom plate shell (2), and the second terminal post (10) is further fixedly connected with a fixed contact (7) and a movable contact (8).

6. A single sound electric horn for a vehicle according to claim 5, characterized in that: The armature (6) is arranged in the sealed cavity of the electric horn, the screw end of the armature (6) is fixedly connected with the center hole of the diaphragm (3) through a nut, and a resonance sheet (5) is arranged outside the sealed cavity of the electric horn and fixedly connected with the tail of the screw end of the armature (6) through a nut.

7. A single sound electric horn for a vehicle according to claim 6, characterized in that: The large-diameter circular platform end plane of the middle part of the armature (6) is in contact with the movable contact (8).

8. A single sound electric horn for a vehicle according to claim 7, characterized in that: The material of the movable contact (8) is elastic material.

9. A single sound electric horn for a vehicle according to claim 8, characterized in that: One end of the electromagnetic coil (11) is electrically connected with the first terminal post (9), the other end is electrically connected with the movable contact (8), and the movable contact (8) is in conduction with the second terminal post (10) through the fixed contact (7).

10. A single sound electric horn for a vehicle according to any one of claims 1 to 9, characterized in that: The axis of the armature (6) coincides with the axis of the iron core (12).

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