KR102633706B1 - A vehicle horn - Google Patents

Abstract

A car horn is introduced. In the vehicle horn according to an embodiment of the present invention, vibration generation due to torsion is improved and quality is stabilized by changing the structure of the forming mirror.

Description

A vehicle horn}

The present invention relates to a horn, and more specifically to a horn for a vehicle.

In general, a horn is an alarm device that generates a sound to warn other vehicles or pedestrians while the vehicle is in operation or parked. Depending on the purpose of use, it is used as a horn and a buzzer.

The vehicle is equipped with a horn for sounding a warning sound in case of an emergency, and, separately from the horn, is equipped with a theft alarm horn for sounding an alarm when the door is forcibly opened while parking.

The horn is equipped with a number of buzzers for generating buzzer sounds according to each purpose, and the buzzer can generate a buzzer sound when the vehicle door is closed and opened, or when the driver with the smart key gets off and moves away from the vehicle. .

The vehicle horn is installed inside the engine room and generates an alarm sound (horn) by the driver's operation while driving to ventilate the surrounding area, thereby preventing unexpected accidents such as contact with pedestrians.

A conventional horn used in this way will be described with reference to the drawings regarding the diaphragm among its component parts.

Referring to the attached Figure 1, the conventional diaphragm 10 extends in a straight line in section A based on the radial outer side, as shown in the cross-sectional view, and then bends upward in section B corresponding to the forming portion 12. It is then constructed in a form that extends horizontally toward the hole opened in the center.

In addition, the ratio of section A and section B according to the length extended in the horizontal direction is maintained at a ratio of 6.5:3.5. The diaphragm 10 repeatedly vibrates in the up and down directions when the horn is activated by the driver, and the resulting vibration changes into distortion, causing an increase in moment.

In particular, the forming part 12 connected to section A is bent in a straight line, and the ratio of the extension lengths of section A and section B is the same as described above, so the twisting (tilting) moment value increases. In addition, when the conventional diaphragm 10 was manufactured, a problem was caused in which the performance distribution depending on the size distribution was greatly increased.

In this case, when the horn is activated, problems such as high voltage boiling and deterioration of sound quality occur, so countermeasures are needed.

Republic of Korea Patent No. 20-0144553

Embodiments of the present invention are intended to provide a vehicle horn with reduced product defect rate and minimized displacement due to vibration by changing the structural form of the existing diaphragm.

A vehicle horn according to an embodiment of the present invention includes a first extension portion 104 extending from the radial outer side toward the inner side when looking vertically at the diaphragm body portion 102 forming the general outline; and a round portion 106 extending from an extended end of the first extension portion 104 toward an opening 101 at the center of the diaphragm body portion 102. ) and a second extension portion 108 extending from the extended end toward the opening 101, wherein the surface length of the diaphragm body 102 when viewed vertically from the diaphragm body 102 Among them, the entire extended length of the first extension 104 is defined as a first section (S1), and the entire extended length of the round portion 106 and the second extension 108 is defined as a second section (S2). ), the first section (S1) and the second section (S2) each extend to the same length.
The round portion 106 extends toward the inside of the diaphragm body portion 102.
The round part 106 connects the first extension part 104 and the second extension part 108 to each other and is rounded and extends from the distance between one end and the other end of the round part 106 in the entire extended section. The central position corresponds to the maximum protrusion position.
The round portion 106 extends longer than the second extension portion 108 from the surface of the diaphragm body portion 102.

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Embodiments of the present invention can improve horn performance by optimizing the forming diameter ratio of the horn.

These embodiments can improve the sound quality of the horn and increase the input section by reducing the moment value due to twist when the horn is operating.

In these embodiments, the quality of the horn is maintained at a constant level and the defect rate is reduced, thereby improving stability during mass production.

Figure 1 is a perspective view and cross-sectional view showing a conventional vehicle horn.
Figure 2 is a perspective view showing a vehicle horn according to this embodiment.
Figure 3 is a diagram showing a vehicle horn and surrounding configuration according to this embodiment.
Figure 4 is a longitudinal cross-sectional view of Figure 2.
Figure 5 is a diagram showing an experiment conducted with different forming diameters of the vehicle horn according to this embodiment.

The advantages and features of the present disclosure, and methods for achieving them, will become clear with reference to the embodiments described in detail below in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below and will be implemented in various different forms, but these embodiments only ensure that the disclosure of the present disclosure is complete and are within the scope of common knowledge in the technical field to which this disclosure pertains. It is provided to fully inform those who have the scope of the disclosure, and the disclosure is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

A component is said to be “connected to” or “coupled to” another component when it is directly connected or coupled to another component or with an intervening other component. Includes all cases. On the other hand, when one component is referred to as “directly connected to” or “directly coupled to” another component, it indicates that there is no intervening other component. “And/or” includes each and every combination of one or more of the mentioned items.

The terminology used herein is for the purpose of describing embodiments and is not intended to limit the disclosure. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises.” and/or “comprising” means that a referenced component, step, operation and/or element does not exclude the presence or addition of one or more other components, steps, operations and/or elements.

Although first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are merely used to distinguish one component from another.

A vehicle horn according to an embodiment of the present invention will be described with reference to the drawings.

Referring to the attached FIGS. 2 to 4, the vehicle horn according to this embodiment has a first extension extending from the radial outer side toward the inner side when looking vertically at the diaphragm body portion 102 forming the overall outline. (104) and a round part (106) extending from an extended end of the first extension part (104) towards an opening (101) opened at the very center of the diaphragm body part (102). The extended end of portion 106 includes a second extension portion 108 extending toward the opening 101 .

In particular, in this embodiment, the length corresponding to the forming diameter of the horn is extended differently from the existing one, so the moment due to twisting is reduced, the vibration balance can be optimized, and the sound quality and operating voltage range of the horn can be increased.

The vehicle horn 100 according to this embodiment includes the above-described diaphragm body portion 102, the horn switch 110, the coil 120, the connection portion 130, the battery 140, and the buzzer switch ( 150) and a signal generator 160.

The coil 120 of the horn 100 is wound around an iron core 122, and one side of the coil 120 may be connected to the connection portion 130 and the other side may be connected to ground (GND).

The connection part 130 can connect the stand 132 and the spring 134. Here, the spring 134 may be connected to the coil 120, and the stand 132 may be connected to the horn switch 110.

The horn switch 110 can be connected to the power supply unit 170 and can be turned on and off by the driver. That is, when the driver presses the horn switch 110 to generate a horn sound while driving, the horn switch 110 may be turned on. According to this, the horn switch 110 may always be in an OFF state.

When the horn switch 110 is turned on, current due to the power of the power supply unit 170 is applied to the stand 132. The current applied to the stand 132 is also applied to the spring 134 through the connection part 130, and the current applied to the spring 134 is also applied to the coil 120 connected to the spring 134. Due to the current applied to the coil 120, a magnetic force is generated in the iron core 122 around which the coil 120 is wound, and the armature 180 is pulled toward the iron core 122 due to the magnetic force generated in the iron core 122. .

At this time, the armature 180 moves toward the iron core 122 and pushes the spring 134, causing the spring 134 to separate from the connection portion 130. That is, the spring 134 and the connecting portion 130 are no longer in contact, and as a result, current from the power source of the power supply unit 170 may no longer be applied to the spring 134.

As current is not applied to the spring 134, current is no longer applied to the coil 120, and the iron core 122 loses its magnetic force. As the iron core 122 loses its magnetic force, the armature 180 returns to its original position due to the elastic force of the diaphragm body 102. During this process, vibration occurs in the diaphragm body 102, and a horn sound may be output due to the vibration of the diaphragm body 102.

Additionally, when the armature 180 is moved to its original position, the spring 134 that the armature 180 was pushing is no longer pushed, so the spring 134 comes into contact with the connection portion 130 again.

In addition, when the driver no longer presses the horn switch 110, the horn switch 110 is turned OFF, and a current is supplied to the connection part 130, stand 132, spring 134, and coil 120. The horn will not sound as it is no longer authorized.

The diaphragm body part 102 operated in this way has a round part 106, so that even when vibration occurs repeatedly in the vertical direction based on the drawing, the occurrence of vibration due to distortion is reduced and the resulting amount of displacement is increased. It can be minimized.

The round part 106 connects the first extension part 104 and the second extension part 108 to each other, so even when vibration occurs, vibration can be reduced through the round shape itself.

In addition, in this embodiment, when looking down at the diaphragm body 102 vertically, the entire extended length of the first extension 104 among the surface lengths of the diaphragm body 102 is divided into the first section S1. , and when the entire extended length of the round part 106 and the second extension part 108 is defined as the second section S2, the first section S1 and the second section S2 are Each extends to the same length.

When the first and second sections (S1, S2) are extended to the same length, noise generation at high voltage is reduced, sound quality is improved, and the amount of displacement can be minimized by reducing the twisting moment value due to excitation.

To prove this, an excitation experiment was conducted on the diaphragm body portion 102. The experimental standard is to keep the outer diameter the same and only the forming diameter to be different, but the second model corresponds to the configuration according to the present invention. For reference, the first model has an outer diameter of 67mm and a forming diameter of 28mm, and the second model has an outer diameter of 67mm and a forming diameter of 34mm.

As for the excitation condition, in case of excitation 1, the amount of displacement in the diaphragm body portion 102 was measured after applying forced vibration based on high voltage. And excitation 2 measured the maximum amount of displacement after applying free vibration to the diaphragm body portion 102.

In the case of the first model, the displacement in excitation 1 was measured as 1.02 mm, and in the case of excitation 2, it was measured as 0.77 mm. It can be seen that the displacement of the excitation 1 is reduced by about 30% compared to the existing diaphragm body part, thereby reducing unnecessary vibration.

In excitation 2, the maximum displacement of the first model was measured as 340 mm at 925 Hz, and the maximum displacement of the second model was measured as 280 mm at 948 Hz. It can be seen that the displacement of the excitation 2 is reduced by about 21% compared to the existing diaphragm body part, thereby reducing unnecessary vibration.

In this way, it can be seen that when excitation is generated according to the ratio of the forming diameter, the amount of displacement and maximum displacement are improved. In particular, when it is extended to the same length as the round part 106 and S1 and S2 as in the present invention, the twisting moment is reduced. It can be seen that the amount of displacement due to vibration can be minimized without increasing, which is advantageous in improving sound quality.

The round part 106 extends toward the inside of the diaphragm body part 102, and can be changed in various ways without being limited to the shape and movement trajectory shown in the drawing.

The round part 106 connects the first extension part 104 and the second extension part 108 to each other, and the round part 106 is formed in a rounded and extended entire extension section. The central position of the distance between one end and the other end corresponds to the maximum protruding position (C). The round portion 106 maintains a trajectory in which the curvature starts from the extended end of the first extension 104, protrudes to a maximum at the central position, and then decreases toward the second extension 108.

Since the direction in which excitation is generated in the diaphragm body portion 102 is in the vertical direction based on the drawing, the rounded direction of the round portion 106 is rounded and extends toward the lower side of the diaphragm body portion 102. It can be advantageous for reduction.

The round portion 106 extends longer than the second extension portion 108 from the surface of the diaphragm body portion 102. The reason why the round part 106 extends longer than the second extension part 108 in this way is to reduce unnecessary vibration or an increase in twisting moment due to vibration due to excitation being transmitted to the second extension part 108. .

In this case, even if vibration occurs in the diaphragm body portion 102, it can be reduced by the round portion 106, thereby reducing the displacement and amount of displacement.

Above, an embodiment of the present invention has been described, but those skilled in the art can add, change, delete or add components without departing from the spirit of the present invention as set forth in the patent claims. The present invention may be modified and changed in various ways, and this will also be included within the scope of rights of the present invention.

102: Diaphragm body part
104: first extension part
105: opening
106: round part
S1, S2: 1st and 2nd sections

Claims (5)

A first extension portion 104 extending from the radial outer side toward the inner side when looking down at the diaphragm body portion 102 forming the general outline vertically; and
a round portion 106 extending from an extended end of the first extension portion 104 toward an opening 101 at the center of the diaphragm body portion 102; and a round portion 106. Includes a second extension portion (108) extending from the extended end toward the opening (101),
When looking down at the diaphragm body 102 vertically, the entire extended length of the first extension 104 among the surface lengths of the diaphragm body 102 is defined as a first section S1, When defining the entire extended length of the round portion 106 and the second extension portion 108 as the second section S2, the first section S1 and the second section S2 each extend to the same length. A car horn.
delete According to claim 1,
The round part (106) is a vehicle horn extending toward the inside of the diaphragm body part (102). According to claim 1,
The round part 106 connects the first extension part 104 and the second extension part 108 to each other and is rounded and extends from the distance between one end and the other end of the round part 106 in the entire extended section. A car horn whose central position corresponds to the maximum protruding position. According to claim 1,
The round part (106) is a vehicle horn extending longer than the second extension part (108) from the surface of the diaphragm body part (102).