CN113173132A

CN113173132A - Loudspeaker device for vehicle and vehicle

Info

Publication number: CN113173132A
Application number: CN202110267645.1A
Authority: CN
Inventors: 李光耀; 赵红伟; 王民栋; 鞠文强
Original assignee: Wuhan Lotus Cars Co Ltd
Current assignee: Wuhan Lotus Cars Co Ltd
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2021-07-27
Anticipated expiration: 2041-03-12
Also published as: CN117124995A; CN113173132B

Abstract

The invention discloses a loudspeaker device for a vehicle and the vehicle, comprising a secondary instrument desk and at least two loudspeakers, wherein the secondary instrument desk is positioned between a main driving position and a secondary driving position of the vehicle; the inside cavity structure that is of vice instrument desk, the cavity structure of vice instrument desk is the sound production cavity of speaker. The loudspeaker is arranged in the auxiliary instrument desk, and the existing cavity structure of the auxiliary instrument desk is used as a sound production cavity, so that on one hand, a bass sound field at the central part of the vehicle is enhanced, a Hi-Fi (high fidelity) effect is improved, and a sound effect is good; on the other hand, the utilization rate of the vehicle space is improved, meanwhile, the energy transfer of bass is effectively shortened, and the vehicle energy is saved.

Description

Loudspeaker device for vehicle and vehicle

Technical Field

The invention relates to the technical field of speakers, in particular to a speaker device for a vehicle and the vehicle.

Background

With the continuous development of vehicle technology, the requirements of people on living quality are continuously increased, and the requirements of people on vehicles are higher and higher, particularly for a sound system of a whole vehicle; where consumers prefer bass and subwoofer, which are more distance sensitive, than treble and mid-range. In the existing vehicle-mounted loudspeaker, the heavy bass is usually arranged in a trunk due to large space requirement and is far away from passengers; the common bass is arranged below the car door, but the diving frequency is limited due to space limitation; and the sound field is weak at the central part of the whole vehicle, which causes insufficient positioning sense and can not achieve ideal Hi-Fi (high fidelity) effect.

In the carriage of vehicle, the vice instrument desk that is located the carriage middle part is the indispensable subassembly of vehicle, and its upper surface often is used for setting up gearshift and places structures such as platform, and factor considerations such as the lightweight demand of whole car and the operating flexibility of gearshift, the inside of vice instrument desk often sets up to the cavity, but this cavity is often idle, has caused the waste of space.

Therefore, there is a need for a speaker device for a vehicle, which can solve the problem that a woofer cannot be disposed in a region close to a driver due to space limitations, enhance a bass sound field in a central portion of the entire vehicle, and improve user experience.

Disclosure of Invention

In view of the problems in the prior art, the invention provides a speaker device for a vehicle and the vehicle, which can enhance the bass sound field in the central part of the entire vehicle and improve the experience of users.

The invention provides a loudspeaker device for a vehicle, which comprises a secondary instrument desk and at least two loudspeakers, wherein the secondary instrument desk is positioned between a main driving position and a secondary driving position of the vehicle; the inside cavity structure that is of vice instrument desk, the cavity structure of vice instrument desk is the sound production cavity of speaker.

Further, the speakers are arranged in pairs, and two of the speakers in a pair are arranged back to back.

Further, the cavity structure of the auxiliary instrument desk is a closed cavity.

Further, the speaker has a sound diffusing portion that is located on an outer surface of the sub instrument console, and the sound diffusing portion is directed toward a lateral direction of the vehicle.

Furthermore, the edge of the sound diffusion part is connected with the outer wall of the auxiliary instrument desk in a matching mode, and the loudspeaker is connected with the auxiliary instrument desk in a sealing mode through hot plate welding.

Further, the sound amplifying part is in a circular truncated cone shape of an outward expanding type.

Furthermore, the auxiliary instrument desk comprises a front auxiliary instrument desk and a rear auxiliary instrument desk, and the loudspeaker is arranged on the front auxiliary instrument desk and/or the rear auxiliary instrument desk.

Preferably, at least one pair of said loudspeakers is at least one of tweeters, midrange loudspeakers, woofers, subwoofers and surround speakers.

Further, the speaker device for a vehicle further includes a control mechanism for controlling the speaker device for a vehicle to sound.

The invention also provides a vehicle comprising the loudspeaker device for the vehicle as described in any one of the above.

The implementation of the invention has the following beneficial effects:

1. the loudspeaker is arranged in the auxiliary instrument desk, is equal and close to the main and auxiliary driving positions in the vehicle, enhances the bass sound field in the central part of the whole vehicle, has good Hi-Fi (high fidelity) effect, can bring stronger bass feeling through limited sound production, and has good user experience feeling.

2. The existing cavity structure in the auxiliary instrument desk is used as a sounding cavity, so that on one hand, the bass energy transfer can be effectively shortened, and the energy in the vehicle can be effectively saved; on the other hand, the utilization rate of the space in the vehicle is improved.

3. The paired loudspeakers are arranged back to back, so that the instrument desk vibration possibly caused by the loudspeakers can be counteracted, and the stability is good.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly described, wherein like parts are designated by like reference numerals. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic sectional view of a speaker device for a vehicle according to one possible embodiment of the present invention;

FIG. 2 is a schematic diagram of a pair of speakers according to one possible embodiment of the present invention;

fig. 3 is a schematic external configuration diagram of a speaker device for a vehicle in one possible embodiment of the present invention.

Wherein the reference numerals in the figures correspond to: 1-auxiliary instrument desk, 11-cavity structure, 12-mounting surface, 2-loudspeaker and 21-sound-amplifying part.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "front", "back", "two ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred device or structure must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; also, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Examples

In the field of car audio, people are always pursuing such an effect: when the instrument is sitting in a car, like sitting in front of a stage, all sounds are emitted from the front windshield, eyes are closed, like the scene of a singing meeting at the body is sensed, the sound of each instrument can achieve the optimal replay effect, namely the professional-level high-Fi (high fidelity) effect, namely the high fidelity effect; the key point is that the sound source synchronization and the amplification proportion of each frequency band signal are the same, which is not a difficult problem for the household sound equipment, because the high, medium and low frequency units of the household sound equipment are all arranged in the same fixed box body, and all music signals are amplified by the same power amplifier, the amplification proportion is consistent, and the excellent tone balance degree is easily achieved; however, vehicle-mounted sound equipment is different, due to the limitation of the installation position, a super low pitch speaker unit can only be installed in a rear luggage compartment, a mid low pitch speaker unit can only be installed below and in front of a vehicle door, a high pitch speaker unit is generally installed near an A column, so that the effect of the super low pitch speaker unit is likely to hear only high pitch in the front and low pitch transmitted from the rear, and the mid-pitch part is relatively weak; because the requirements for amplification and power of different loudspeaker units are different, the vehicle-mounted sound box generally only adopts a mode of driving loudspeakers by a plurality of power amplifiers, so that the tone color balance degree is difficult to reach an ideal level.

In order to solve a series of problems such as the weak location that leads to of central authorities 'sound field is felt not enough, high-fidelity effect is bad in the current vehicle, this embodiment provides a vehicle, is equipped with a speaker device for the vehicle in this vehicle, can utilize existing cavity setting speaker 2 in the vice instrument desk 1, does not occupy extra space, realizes the high utilization ratio to space in the vehicle, can promote the audio in the car simultaneously, promotes user's experience and feels.

Specifically, as shown in fig. 1 to 3 of the specification, the speaker device for a vehicle includes a sub instrument panel 1 and two speakers 2 located between a main driver's seat and a sub driver's seat of the vehicle, and assuming that a forward direction of the vehicle is a vehicle longitudinal direction and left and right sides of the vehicle are a vehicle lateral direction, the sub instrument panel 1 in the vehicle is generally located at a middle of the vehicle lateral direction and extends along the vehicle longitudinal direction, and in the vehicle lateral direction, the sub instrument panel 1 is located at an equal distance from the front driver's seat and the sub driver's seat, and the sub instrument panel 1 includes two mounting surfaces 12 facing the main driver's seat and the sub driver's seat, respectively, the mounting surfaces 12 are vertically arranged and extend along the vehicle longitudinal direction, the speakers 2 are arranged on the mounting surfaces 12 toward an outer side of the mounting surfaces 12, that is, two speakers 2 are arranged along the vehicle lateral direction, one speaker 2 is facing the main driver's seat, and the other speaker 2 is facing the sub driver's seat, the two speakers 2 are balanced in space and distance, the distance from each driver to each passenger is equal and close, and the driver and the passengers can enjoy more extreme audio-visual experience.

Meanwhile, a cavity structure 11 is arranged inside the auxiliary instrument desk 1, namely between the two mounting surfaces 12, the cavity structure 11 is an existing and idle space during production and design, and in the invention, the cavity structure 11 is used as a sound production cavity of the loudspeaker 2, so that on one hand, extra space is not needed to be occupied, and the space utilization rate of a vehicle is improved, on the other hand, the cavity structure 11 is used as a sound production cavity and is equivalent to a sound box, and the larger the volume is, the better the sound effect is; by taking a woofer as an example, the energy transfer of bass is effectively shortened by taking the auxiliary instrument 1 positioned in the middle of the vehicle as a sound production cavity, the limited sound production can bring stronger bass feeling due to the closer distance, and the energy in the vehicle can be saved under the condition of achieving the same sound effect enjoyment; compared with the traditional loudspeaker, the bass loudspeaker of the invention has the advantages that the tone quality is greatly improved: firstly, the frequency range of the traditional woofer is 80-500 Hz, but the loudspeaker 2 can reach 50-500 Hz, the frequency is lower, the bass effect is better, the tone color is compact, and the strength sense is strong; secondly, the high-pitch effect achieved by the loudspeaker 2 is far stronger than that of the traditional bass loudspeaker in the aspects of cleanliness and brightness; thirdly, the loudspeaker 2 in the embodiment can also achieve better middle sound effect, the sound color is not distorted, and the identification degree is high.

Specifically, for a general sound box, the size of the box body does influence the sound quality, and similarly, the size of the cavity structure 11 also influences the sound effect of the speaker 2, because the volume of the secondary instrument desk 1 itself is limited, the volume of the cavity structure 1 on the vehicle does not exceed 20L, and under the premise that the ratio of the size of the speaker 2 to the size of the cavity structure 11 is preferably 1 (inch): 2 (liter); the preferred volume of the cavity structure 11 in the sub-console 1 can be determined according to the selected size of the speaker 2 when the sub-console 1 is produced, for example, when the speaker 2 is selected to have a diameter of 6.5 inches, the recommended volume of the sound box is 13L, and then the cavity structure 11 can be designed to be 12-14L when the sub-console 1 is produced, so that the speaker 2 is matched with the size of the sound-emitting cavity thereof, and the best sound effect can be provided; conversely, the optimum dimensions of the loudspeaker 2 can also be determined according to the volume of the already formed cavity structure 11, so that the loudspeaker device for a vehicle can provide sound effects which are as excellent as possible in different practical situations; it should be noted that the ratio of the speaker 2 to the cavity structure 11 is not limited to the above ratio, and for some special speakers 2, when the factory data indicates that the cabinet volume has special requirements, the optimal ratio of the speaker 2 to the cavity structure 11 is determined according to the factory data to ensure the sound effect.

In addition, the cavity structure 11 as the sounding cavity can achieve a better bass effect when the size is set according to the golden ratio of 0.618; as shown in fig. 1 of the specification, due to structural limitations of the sub-console 1 itself, the cavity structure 11 is often an irregular rectangular parallelepiped shape, and with reference to the installation position of the speaker 2, the dimension toward the lateral direction of the vehicle is the depth of the cavity structure 11, the dimension extending along the longitudinal direction of the vehicle inside the mounting surface 12 is the length of the cavity structure 11, and the dimension in the vertical direction inside the mounting surface 12 is the width of the cavity structure 11, when the depth: length 0.618, and length: width 0.618, or when depth: width is 0.618, and width: when the length is 0.618, the optimal sound can be achieved; considering the actual structural characteristics of the vehicle and errors possibly generated during production, the value range of the ratio can be selected to be 0.580-0.660, so that the common simple frequency for enhancing the internal resonance can not occur when the cavity structure 11 is in an approximate size, and the sound effect is good.

Specifically, as shown in the attached fig. 2 of the specification, the speakers 2 are arranged in pairs, and the two paired speakers 2 are arranged in a back-to-back manner, so that the balance is good, and the effect that the sound effects of the main and auxiliary driving positions are the same is achieved; in addition, when speaker 2 vibrates the sound production, not only there is the sound wave on the front, also there is the sound wave on the back, consequently, the vice instrument desk 1 vibration that probably brings when speaker 2 is sounded can effectively be offset in the back to back formula setting, and stability is good, and whole car comfort level is high.

Specifically, as shown in fig. 1 of the specification, the cavity structure 11 of the sub-instrument desk 1 may be preferably a closed cavity when serving as a sound-generating cavity, the speaker 2 is installed in a completely closed cavity structure 11, and the sound waves of the speaker 2 are separated by using a side wall around the cavity structure 11 to prevent an acoustic short circuit phenomenon; the air in the completely closed cavity structure 11 acts as a spring for the loudspeaker 2 and can be used to improve the low frequency response of the loudspeaker, so that the bass sound is deep and the resolution of the bass sound is better.

Specifically, as shown in fig. 2-3 of the specification, the speaker 2 has a sound diffusion portion 21, and the sound diffusion portion 21 is located on the outer surface of the console 1 and is arranged in a close distance toward the lateral direction of the vehicle, that is, the sound diffusion portion 21 is arranged toward the main driving seat or the auxiliary driving seat, so as to ensure that limited sound can be maximally heard by the driver and passengers, and a stronger bass feeling is brought; correspondingly, a mounting hole for exposing the sound expansion part 21 is formed on the mounting surface 12, so that the main body part of the loudspeaker 2 is positioned inside the sub instrument desk 1, and the sound expansion part 21 is exposed outside the cavity structure 11 of the sub instrument desk 1 through the mounting hole, at this time, in order to ensure the tightness of the cavity structure 11, the edge of the sound expansion part 21 is matched and connected with the outer wall of the sub instrument desk 1 (namely, the peripheral wall of the mounting hole), the position of the sound expansion part 21, which is contacted with the mounting hole, is a connection part, the outline of the connection part is the same as that of the mounting hole, so that the sound expansion part 21 and the mounting hole are accurately positioned, the width at the upper edge of the sound expansion part 21 needs to be larger than that of the connection part, namely, the width of the edge of the sound expansion part 21 is larger than the maximum width of the mounting hole, and the edge of the sound expansion part 21 can be connected with the peripheral wall of the mounting hole, and the loudspeaker 2 cannot fall into the cavity structure 11 because of the mounting hole is too large, the fixing is disabled, and the functional stability of the speaker device for the vehicle is also ensured; in one possible embodiment of the present description, the sound amplifying part 21 is connected to the peripheral wall of the mounting hole by bolts, and the edges of the sound amplifying part 21 and the peripheral wall of the mounting hole are provided with screw holes with equal number and one-to-one correspondence, so that the bolts can pass through to fixedly connect the speaker 2 and the sub instrument desk 1; in another possible embodiment of the present description, in order to avoid the poor sound effect caused by the insufficient sealing property between the speaker 2 and the sub-meter desk 1, the edge of the sound diffusion part 21 and the peripheral wall of the mounting hole may be preferably glued, so as to ensure the reliability of the connection and fixation on one hand and the tightness of the cavity structure 11 on the other hand; in a preferred embodiment of the present specification, the speaker 2 and the mounting surface 12 may be welded and sealed by a hot plate to form an integrated subwoofer cavity structure, which has a better sealing and connecting effect and a better subwoofer sound effect, and the integrated subwoofer cavity structure is inside the cavity structure 11, and has a good platform and modularization degree; in addition, in one possible embodiment of the present specification, the sound amplifying section 21 may be provided in a flared truncated cone shape, so that the sound emission of the speaker 2 can be effectively amplified, the sound propagation is uniformly balanced, and the bass effect is good.

Specifically, with the direction shown in fig. 1 of the specification as a reference, the left side in the figure is a direction of a vehicle head, the right side in the figure is a direction of a vehicle tail, the speaker 2 can be arranged at the position shown in fig. 1, the speaker 2 is positioned on the mounting surface 12 in the direction close to the vehicle head, or the speaker 2 can be arranged on the mounting surface 12 in the position close to the vehicle tail, at this time, the distance from the driver to the driver is closest, the sound heard by the driver is the largest, the bass energy transfer path is shortened to the utmost, so the sound effect is the best, on the contrary, under the condition of achieving the same sound effect, the energy required to be provided for the speaker 2 to sound is the smallest, the energy in the vehicle can be effectively saved, and the cruising ability of the whole vehicle is further improved; in the longitudinal direction of the vehicle, due to the structural limitation of the auxiliary instrument desk 1, the length of the mounting surface 12 is limited, and the distances between different positions on the mounting surface 12 and drivers and passengers are not far, so that the loudspeaker 2 can be arranged at any position of the mounting surface 12 according to actual conditions and different requirements under the condition of not influencing bass sound effects, so that the overall Hi-Fi effect of the loudspeaker device for the vehicle is improved; in addition, in some vehicle models, more than one auxiliary instrument desk 1 is arranged, the auxiliary instrument desk 1 can also comprise a front auxiliary instrument desk and a rear auxiliary instrument desk, paired speakers 2 can be arranged on the front auxiliary instrument desk and the rear auxiliary instrument desk, or a plurality of pairs of speakers 2 are respectively arranged on the front auxiliary instrument desk and the rear auxiliary instrument desk, so that a better and stronger sound effect is achieved.

Specifically, each pair of speakers 2 may be not only a woofer for enhancing bass sound effect, but also at least one of a tweeter, a midrange speaker, a woofer, a subwoofer and a surround speaker in other embodiments of the present specification, so as to meet different requirements of actual situations and customers; for example, in one possible embodiment of the present specification, a pair of surround speakers is provided at the sub-instrument desk 1, and in another possible embodiment of the present specification, a pair of tweeters is provided at the front sub-instrument desk, and a pair of woofers is further provided on the rear sub-instrument desk, to give the driver and passengers a higher quality sound effect experience.

Specifically, in order to realize normal sound emission of the speaker, the speaker device for a vehicle further includes a control mechanism for controlling the speaker device for a vehicle to emit sound; when the control mechanism receives a starting instruction, the loudspeaker 2 in the loudspeaker device for the vehicle is controlled to sound, and the loudspeaker 2 takes the cavity structure 11 as a sound-producing cavity and is arranged in the auxiliary instrument desk 1, namely the transverse middle part of the vehicle is equal to the distance between the main driving position and the auxiliary driving position, so that good timbre balance degree can be achieved, and a bass sound field in the central part of the whole vehicle can be enhanced; compared with the traditional vehicle-mounted loudspeaker, the vehicle-mounted loudspeaker has the advantages that more excellent effects can be achieved in the aspects of the preposed sound field effect (sound effect feeling preposition), the sound field positioning (different sound sources are accurately positioned in the sound field), the space feeling (spatial feeling of the bass reverberation effect on the sound effect), the replay effect (sound reduction fidelity effect), the sound image effect (tone quality, tone color and picture quality effect) and the like, so that the more excellent and tone color balanced Hi-Fi effect is provided.

According to the embodiment, the invention has the following beneficial effects:

While the invention has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made, and equivalents may be substituted for elements thereof without departing from the scope of the invention as defined by the claims.

Claims

1. A speaker arrangement for a vehicle, characterized by comprising a sub-console (1) and at least two speakers (2) located between a main driver's seat and a sub-driver's seat of the vehicle, the sub-console (1) comprising two mounting surfaces (12) facing the main driver's seat and the sub-driver's seat, respectively, the speakers (2) being provided to the mounting surfaces (12) facing outside the mounting surfaces (12); the inside cavity structure (11) that is of vice instrument desk (1), cavity structure (11) of vice instrument desk (1) are the sound production cavity of speaker (2).

2. A speaker apparatus for a vehicle according to claim 1, wherein the speakers (2) are provided in pairs, and two of the speakers (2) in a pair are provided back to back.

3. A speaker apparatus for a vehicle according to claim 1, wherein the cavity structure (11) of the sub-console (1) is a closed cavity.

4. A speaker apparatus for a vehicle according to claim 1, wherein the speaker (2) has a sound diffusion portion (21), the sound diffusion portion (21) is located on an outer surface of the sub meter stand (1), and the sound diffusion portion (21) faces a lateral direction of the vehicle.

5. A speaker apparatus for a vehicle according to claim 4, wherein an edge of the sound diffusing portion (21) is fittingly connected to an outer wall of the sub meter stand (1), and the speaker (2) is hermetically connected to the sub meter stand (1) by hot plate welding.

6. A speaker apparatus for a vehicle according to claim 4, wherein the sound diffusing portion (21) is a flared truncated cone shape.

7. A speaker arrangement for a vehicle according to claim 1, wherein the sub-console (1) comprises a front sub-console and a rear sub-console, and the speaker (2) is provided at the front sub-console and/or the rear sub-console.

8. A speaker arrangement for a vehicle according to claim 1, wherein at least one pair of said speakers (2) is at least one of a tweeter, a midrange speaker, a woofer, a subwoofer and a surround speaker.

9. The speaker device for a vehicle according to claim 1, further comprising a control mechanism for controlling the speaker device for a vehicle to emit sound.

10. A vehicle characterized by comprising the speaker device for a vehicle according to any one of claims 1 to 9.