CN210927969U

CN210927969U - Excitation type loudspeaker

Info

Publication number: CN210927969U
Application number: CN201922246066.XU
Authority: CN
Inventors: 张鹏
Original assignee: Estec Electronic Jiaxing Co ltd
Current assignee: Estec Electronic Jiaxing Co ltd; Estec Co Ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-07-03
Anticipated expiration: 2029-12-16

Abstract

The utility model relates to an excitation formula speaker, including support, U iron, magnet steel, sound column piece and voice coil loudspeaker voice coil, the U iron is installed on the support, and the magnet steel bonds in the U iron, and the sound column piece bonds with the magnet steel in the top of magnet steel together, and the lower extreme of voice coil loudspeaker voice coil is placed in the U iron, and magnet steel and sound column piece are in the voice coil loudspeaker voice coil, are equipped with the bullet ripples on the outer wall of voice coil loudspeaker voice coil, bullet ripples and leg joint, voice coil loudspeaker voice coil connecting wire, its characterized in that still includes connecting collar, viscidity sticky tape and safety cover, and the upper and lower both ends of connecting collar bond the upper end and the viscidity sticky tape of voice coil loudspeaker voice coil respectively, the support has a plurality of fixed buffering strips, fixed buffering strip with. The utility model adopts the structure of the soundless basin, the voice coil is adhered to the bumper panel of the electric automobile through the connecting ring and the adhesive tape, the installation and sound production mode is changed, and the installation and the disassembly are more convenient; the sound basin is not arranged, so that the volume is reduced and the weight is lightened.

Description

Excitation type loudspeaker

Technical Field

The utility model relates to a stereo set technical field, especially an excitation formula speaker.

Background

The electric automobile is quite quiet in the driving process due to the characteristics of the electric automobile, and does not have the booming sound of an engine in the driving process like a fuel vehicle, so that for surrounding people, the silence of the electric automobile easily causes harm to the surrounding people, and the danger is possible, especially for the old people walking on the road, when the electric automobile running at low speed approaches to a pedestrian, the noise is too low, and the pedestrian cannot necessarily feel the existence of the vehicle. In the present city, whistling is prohibited in some cells, so that the electric vehicle or the plug-in hybrid electric vehicle needs to be additionally provided with a device capable of giving out prompt sound so as to avoid traffic accidents. With the increasing number of electric automobiles, it is necessary to add a low-speed alarm speaker to the automobile so that the automobile can make a sound when running at low speed or idling to remind surrounding pedestrians and vehicles. The low-speed alarm loudspeaker used in the current market basically belongs to a general electrodynamic loudspeaker, the sound reproduction effect is achieved through the up-and-down vibration of a sound basin, the installation position can only be around an engine, the installation is inconvenient, and the defects of large volume, heavy weight, high cost and the like exist.

Disclosure of Invention

In order to solve the above problem, the utility model provides an excitation type speaker to improve the convenience of installation, and reduce volume and weight reduction.

In order to realize the above-mentioned purpose, the utility model provides an excitation formula speaker, which comprises a bracket, the U iron, the magnet steel, sound column piece and voice coil loudspeaker voice coil, the U iron is installed on the support, the magnet steel bonds in the U iron, the sound column piece bonds together with the magnet steel in the top of magnet steel, the lower extreme of voice coil loudspeaker voice coil is placed in the U iron, magnet steel and sound column piece are in the voice coil loudspeaker voice coil, be equipped with the bullet ripples on the outer wall of voice coil loudspeaker voice coil, bullet ripples and leg joint, voice coil loudspeaker voice coil connecting wire, its characterized in that still includes clamping ring, viscidity sticky tape and safety cover, the upper and lower both ends of clamping ring bond the upper end and the viscidity sticky tape of voice coil loudspeaker voice coil respectively, the support has a plurality of fixed buffering strips, fixed buffering.

The utility model discloses a noiseless basin structure bonds the voice coil loudspeaker voice coil to electric automobile bumper panel through clamping ring and viscidity sticky tape on, the support is connected with the safety cover through fixed buffering strip, when the speaker moves, because the voice coil loudspeaker voice coil is bonded fixed on the bumper panel, unable action, under the effect of magnetic field force, support, U iron, magnet steel, sound column piece move from top to bottom to the sound production. The mounting position is on the bumper panel of the automobile, so that the mounting and sounding mode is changed, and the mounting and dismounting are more convenient; the sound basin is not arranged, so that the volume is reduced and the weight is lightened; the protective cover can block objects frequently encountered in driving processes such as water, dust, sand and stone, and the like, plays a good role in protecting internal components, enables the excitation type loudspeaker to be free from the influence of an external environment, has good environmental tolerance, is simple in structure and low in cost, and accords with the technical standard of a low-speed alarm loudspeaker.

Drawings

FIG. 1 is a schematic diagram of an excitation speaker mounted on a bumper fascia of an electric vehicle;

FIG. 2 is a schematic diagram of an excitation speaker;

fig. 3 is an exploded view of an excited loudspeaker.

The present invention will be described in further detail with reference to the accompanying drawings.

Detailed Description

Referring to fig. 3, the excitation type speaker includes a bracket 1, a U-iron 2, a magnetic steel 3, a sound column piece 4, and a voice coil 5. The bracket 1 is circular, and the middle part of the bracket is provided with a through hole. The U iron 2 is fixedly arranged on the support 1, the U iron 2 is in a hat shape with an inwards concave space, the inwards concave space is opposite to the through hole on the support 1 and is communicated with the through hole, and a protruding boss is arranged in the inwards concave space. The magnetic steel 3 is placed on the boss and is bonded and connected with the U-shaped iron 2. The sound column sheet 4 is bonded with the magnetic steel 3 above the magnetic steel 3. The U iron 2 and the sound column piece 4 are respectively bonded on the upper side and the lower side of the magnetic steel 3, the three are fixed in position, the position cannot deviate in the process of the three axially reciprocating up and down relative to the voice coil 5, and the magnetic field is stable. The voice coil 5 is a thin-wall cylindrical structure with two hollow ends, the lower end of the voice coil is placed in the U-shaped iron 2, and the magnetic steel 3 and the voice column sheet 4 which are connected together in a sticking mode are arranged in the voice coil 5. The voice coil 5 is inserted into a center hole of the damper 6, the outer wall of the voice coil 5 is connected with the damper 6 in a bonding mode, and the outer edge of the damper 6 is bonded on the support 1 in a circle. The damper 6 is soft and elastic, so that the voice coil 5 and the support 1 can relatively reciprocate in a certain range along the axial direction, and the voice coil is kept at the right position in the magnetic gap. The upper end of the voice coil 5 is bonded with a connecting ring 7, the connecting ring 7 is a circular ring with a circular cross section, the cross section area is larger than that of the voice coil 5, and the upper end of the connecting ring is bonded with an adhesive tape 71. When the voice coil is mounted on an electric vehicle, the adhesive tape 71 is stuck to a bumper face of the electric vehicle, thereby fixing the connection ring 7 and the voice coil 5 together to the bumper face. Because the wall of voice coil 5 is very thin, and the sectional area is little, it is insecure directly to glue voice coil 5 on the bumper panel, so at the upper end bonding connection circle 7 of voice coil 5, enlarged the bonding area, the adhesion effect is better.

Support 1 has four fixed buffering strips 11, and fixed buffering strip 11 is connected with safety cover 9, and fixed buffering strip 11 is made by the material that has certain elasticity, for example silica gel etc. both can install support 1 on safety cover 9, also can make support 1 move back and forth relatively safety cover 9 under the exogenic action to reset after external force disappears. Four fixed buffering strips 11 are evenly arranged along the circumference, so that the stress of the support 1 is even, the moving direction of the support 1 is kept unchanged, and the support 1 is positioned. The protective cover 9 is arranged on one side below the U-shaped iron 2. When the loudspeaker is installed, the protective cover 9 is installed on the bumper of the electric automobile to protect components in the loudspeaker from being damaged by foreign objects. Silica gel pad 8 sets up between U iron 2 and safety cover 9 for adsorb on electric automobile's bumper panel, get into inside isolated material such as outside water, dust, further improved the environmental tolerance of speaker.

The voice coil 5 is connected with one end of two leads 12, the other end of the lead 12 is connected with the plug 13, the plug 13 is connected with a corresponding interface of an electric vehicle when the electric vehicle is installed, an external electric signal is transmitted to the voice coil 5 through the connector 10, the voice coil 5 receives the electric signal and converts the electric signal into mechanical vibration, the voice pole piece 4, the magnet steel 3 and the U-iron 2 form a magnetic field, the voice coil 5 is fixed on a bumper panel through being bonded and cannot act, the voice pole piece 4, the magnet steel 3, the U-iron 2 and the bracket 1 move up and down through the force of the magnetic field, energy of the up-and-down action is transmitted to a bumper or other components of the vehicle, and dense waves (. U indisputable 2, magnet steel 3, sound column piece 4 and voice coil loudspeaker voice coil 5 are the speaker commonly used part, and voice coil loudspeaker voice coil 5 is used for receiving the signal of telecommunication and converts mechanical vibration into, and magnet steel 3 is used for forming the magnetic flux, and U indisputable 2 and sound column piece 4 are used for leading-in magnetic air gap of the magnetic flux that the magnet steel formed.

Claims

1. The utility model provides an excitation formula speaker, includes support, U iron, magnet steel, sound column piece and voice coil loudspeaker voice coil, and the U iron is installed on the support, and the magnet steel bonds in the U iron, and the sound column piece bonds together with the magnet steel in the top of magnet steel, and the lower extreme of voice coil loudspeaker voice coil is placed in the U iron, and magnet steel and sound column piece are equipped with the bullet ripples on the outer wall of voice coil loudspeaker voice coil, play ripples and leg joint, voice coil loudspeaker voice coil connecting wire, its characterized in that still includes clamping ring, viscidity sticky tape and safety cover, and the upper and lower both ends of clamping ring bond the upper end and the viscidity sticky tape of voice coil loudspeaker voice coil respectively, the support has a plurality of fixed buffering strips, fixed buffering strip with the safety cover is connected.

2. The excitation type speaker according to claim 1, wherein a silicone pad is provided between the U-iron and the protective cover, and the silicone pad is capable of being attached to a bumper face of an electric vehicle.

3. A loudspeaker according to claim 2, wherein the wire is connected to an insert.