Speaker device, vehicle audio system, and vehicle

Abstract

Disclosed in the present application are a speaker device, a vehicle audio system, and a vehicle. The speaker device comprises a housing, a speaker mechanism and an acoustic resistance mechanism, wherein the housing is provided with an opening and a sound outlet; the speaker mechanism is arranged in the housing and, together with the housing, forms a cavity, both the opening and the sound outlet being in communication with the cavity; and the acoustic resistance mechanism is arranged in the opening. Sound waves emitted by the speaker mechanism radiate outward from the sound outlet through the cavity; by providing the housing with the opening in communication with the cavity and providing the acoustic resistance mechanism at the opening, Helmholtz resonance in the cavity is mitigated, and the acoustic structure of the cavity is changed, such that peaks and valleys in the frequency response are suppressed, thereby flattening a frequency response curve, improving sound quality. By means of the application of the speaker device, the vehicle audio system has good sound quality. By means of the application of the speaker device or the vehicle audio system, the vehicle has good sound quality.

Description

Speaker device, vehicle sound box system and vehicle

[0001] The present application claims priority to the Chinese patent application No. 202422163977.7, filed on September 04, 2024, to the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of loudspeakers, in particular to a loudspeaker device, a vehicle sound box system and a vehicle. BACKGROUND

[0003] The loudspeaker device is an electroacoustic transducer that converts electrical energy into acoustic energy and radiates it to a distance in the air.

[0004] In the related art, in order to realize low-pass filtering and improve low-frequency sound quality, a cavity is usually attached externally to the loudspeaker device, and the sound waves emitted by the loudspeaker device are radiated outward through a sound outlet in communication with the cavity. However, the cavity with the sound outlet forms a Helmholtz resonance cavity in front of the diaphragm, which causes the sound pressure frequency characteristic of the loudspeaker system to have obvious resonance peaks and valleys at the high-frequency cutoff frequency point, resulting in a non-smooth transition of the frequency response curve in this frequency range, reducing the flatness of the frequency response curve, damaging the sound quality, and further degrading the acoustic performance. SUMMARY

[0005] The purpose of the present application is to provide a loudspeaker device, a vehicle sound box system and a vehicle, which can destroy the Helmholtz resonance of the cavity, change the acoustic structure of the cavity, thereby suppressing the peaks and valleys of the frequency response, making the frequency response curve flatter, and improving the sound quality.

[0006] The loudspeaker device comprises:

[0007] A housing having an opening and a sound outlet;

[0008] A loudspeaker mechanism arranged in the housing and forming a cavity together with the housing, the opening and the sound outlet being in communication with the cavity;

[0009] An acoustic resistance mechanism arranged in the opening.

[0010] As an optional solution, the acoustic resistance mechanism comprises:

[0011] An acoustic resistance piece arranged in the opening;

[0012] A support piece arranged on the side of the acoustic resistance piece away from the loudspeaker mechanism.

[0013] As an optional solution, the support piece is provided with through holes, the number of the through holes being multiple, and the multiple through holes being arranged in a circumferential array.

[0014] As an option, the number of the openings is multiple, and the number of the sound resistance mechanisms is also multiple, and the sound resistance mechanisms are arranged one-to-one with the openings.

[0015] As an option, the loudspeaker device further comprises:

[0016] A torque stopping structure, comprising a torque stopping protrusion and a torque stopping groove, one of the surfaces of the sound resistance mechanism and the shell is provided with the torque stopping protrusion, and the other is provided with the torque stopping groove, and the torque stopping protrusion and the torque stopping groove are inserted and matched.

[0017] As an option, the shell further comprises:

[0018] A reinforcing structure, arranged on the top plate and / or the side plate of the shell.

[0019] As an option, the loudspeaker mechanism comprises:

[0020] A yoke, detachably connected with the shell;

[0021] A diaphragm, arranged on the yoke, and arranged to vibrate to produce sound;

[0022] A voice coil, arranged to drive the diaphragm to vibrate;

[0023] A magnetic circuit system, arranged to drive the voice coil to vibrate, arranged on the yoke, and having a magnetic gap arranged for the lower end of the voice coil to be inserted into, and at least part of the voice coil is inserted into the magnetic gap.

[0024] As an option, one of the yoke and the shell is provided with a clamping groove, and the other is provided with a clamping head, and the clamping head and the clamping groove are inserted and matched.

[0025] A vehicle sound system, comprising the loudspeaker device.

[0026] A vehicle, comprising the loudspeaker device or the vehicle sound system.

[0027] The loudspeaker device provided by the application comprises a shell, a loudspeaker mechanism and a sound resistance mechanism, the shell has an opening and a sound outlet, the loudspeaker mechanism is arranged in the shell and forms a cavity together with the shell, the opening and the sound outlet are both communicated with the cavity, the sound resistance mechanism is arranged in the opening, and the sound waves emitted by the loudspeaker mechanism are radiated outward from the sound outlet via the cavity. By arranging the opening communicated with the cavity on the shell and arranging the sound resistance mechanism at the opening, the Helmholtz resonance of the cavity can be destroyed, the acoustic structure of the cavity can be changed, the peaks and valleys of the frequency response can be suppressed, the frequency response curve can be made more flat, and the sound quality can be improved.

[0028] The vehicle sound box system provided in the application has good sound quality by applying the loudspeaker device.

[0029] The vehicle provided in the application has good sound quality by applying the loudspeaker device or the vehicle sound box system. BRIEF DESCRIPTION OF DRAWINGS

[0030] Fig. 1 is a structural schematic diagram of a loudspeaker device provided in an embodiment of the application;

[0031] Fig. 2 is a structural schematic diagram of a loudspeaker device provided in an embodiment of the application;

[0032] Fig. 3 is a sectional view of A-A in Fig. 2;

[0033] Fig. 4 is a structural schematic diagram of a first shell provided in an embodiment of the application;

[0034] Fig. 5 is a structural schematic diagram of a first shell provided in an embodiment of the application;

[0035] Fig. 6 is a structural schematic diagram of an acoustic resistance mechanism provided in an embodiment of the application;

[0036] Fig. 7 is a sectional view of an acoustic resistance mechanism provided in an embodiment of the application.

[0037] Reference signs: 100, loudspeaker device; 10, shell; 11, first shell; 111, opening; 112, sound outlet; 113, sound guide pipe; 114, reinforcing structure; 12, second shell; 121, clamping groove; 13, cavity; 20, loudspeaker mechanism; 21, spider; 211, clamping head; 22, diaphragm; 23, voice coil; 24, magnetic circuit system; 241, front sheet; 242, magnetic steel; 243, back sheet; 25, positioning branch 25; 26, dustproof piece; 30, acoustic resistance mechanism; 31, acoustic resistance piece; 32, supporting piece; 321, through hole; 322, anti-torsion protrusion; 40, fixing piece. DETAILED DESCRIPTION

[0038] In the description of the application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0039] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or implicating the number of indicated technical features. Thus, a feature defined with "first" or "second" can include at least one of the features explicitly or implicitly. In the description of the present application, the term "plurality" means at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0040] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be interpreted broadly. For example, it can be fixedly connected, or detachably connected, or integrated; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In the present application, unless otherwise explicitly specified and limited, if there is a description such as "on" or "under" the first feature to the second feature, etc., it can mean that the first feature and the second feature are in direct contact, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicate that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicate that the first feature is lower than the second feature in horizontal height.

[0042] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0043] In the related art, in order to realize low-pass filtering and improve low-frequency sound quality, a cavity is usually attached outside the loudspeaker device, and sound waves emitted by the loudspeaker device are radiated outward through a sound outlet in communication with the cavity. However, the cavity with the sound outlet forms a Helmholtz resonance cavity, which causes the sound pressure frequency characteristic of the loudspeaker system to have a clear resonance peak and a resonance valley at the high-frequency cutoff frequency point, resulting in a transition that is not smooth in the frequency response curve in the frequency range, reduces the flatness of the frequency response curve, damages the sound quality, and further deteriorates the acoustic performance.

[0044] To solve the above problems, as shown in FIGS. 1-3, the present embodiment provides a loudspeaker device 100, which comprises a housing 10, a loudspeaker mechanism 20, and an acoustic resistance mechanism 30. The housing 10 has an opening 111 and a sound outlet 112. The loudspeaker mechanism 20 is arranged in the housing 10 and forms a cavity 13 together with the housing 10. The opening 111 and the sound outlet 112 are both in communication with the cavity 13. The acoustic resistance mechanism 30 is arranged in the opening 111. Sound waves emitted by the loudspeaker mechanism 20 are radiated outward from the sound outlet 112 through the cavity 13. By arranging the opening 111 in communication with the cavity 13 on the housing 10 and arranging the acoustic resistance mechanism 30 at the opening 111, the Helmholtz resonance of the cavity 13 can be destroyed, the acoustic structure of the cavity 13 can be changed, the peak and valley of the frequency response can be suppressed, the frequency response curve can be made flatter, and the sound quality can be improved.

[0045] Optionally, the housing 10 is further provided with a sound guide pipe 113, which is arranged to communicate the cavity 13 and the sound outlet 112. On the one hand, by arranging the opening 111 on the housing 10 and the acoustic resistance mechanism 30 at the opening 111, the sound guide pipe 113 can be designed as a conversion of the mounting structure. For example, when applied to a car, the sound guide pipe 113 can be connected to the loudspeaker mechanism 20 and the car compartment wall, and simulate infinite baffle sound radiation by means of the car compartment wall. The sound outlet 112 with an area smaller than that of the diaphragm 22 can be designed to meet the limitation on the area of the sound outlet 112 in actual application. On the other hand, in terms of acoustic function, the cavity 13 of the opening 111 has the function of low-pass filtering, and the acoustic load volume is much larger than that of a conventional model-closed box, so that the low-frequency sound power is greatly improved. The sound guide pipe 113 can also increase the effective vibration mass Mms of the loudspeaker, reduce the resonance frequency f0, and improve the low-frequency sound quality.

[0046] As shown in FIGS. 1-5, the housing 10 comprises a first housing 11 and a second housing 12, which are detachably connected, facilitating quick disassembly and assembly of the first housing 11 and the second housing 12.

[0047] Optionally, the loudspeaker device 100 further comprises a fixing member 40, and the first housing 11 is detachably connected to the second housing 12 through the fixing member 40. The fixing member 40 can be one or a combination of screws, rivets, or movable buckles.

[0048] Further, the number of the fixing members 40 is multiple, and the multiple fixing members 40 are arranged at intervals on the peripheral side of the shell 10, which is beneficial to improve the stability of the connection between the first shell 11 and the second shell 12.

[0049] As shown in FIGS. 3-5, the first shell 11 is further provided with a reinforcing structure 114, which is arranged on the top plate and / or the side plate of the shell 10 and can improve the structural strength of the first shell 11. Specifically, the reinforcing structure 114 is a reinforcing rib.

[0050] As shown in FIGS. 1-7, the sound resistance mechanism 30 includes a sound resistance member 31 and a support member 32. The sound resistance member 31 is arranged in the opening 111, and the support member 32 is arranged on the side of the sound resistance member 31 away from the loudspeaker mechanism 20, and the sound resistance member 31 is fixed in the opening 111 of the shell 10 through the support member 32.

[0051] As shown in FIGS. 4 and 5, the inside of the first shell 11 is provided with a reinforcing structure 114, which forms a supporting surface at the opening 111, and the sound resistance mechanism 30 is supported on the supporting surface. The structural design of the shell 10 is ingenious and has high integration.

[0052] Specifically, the sound resistance member 31 can be a waterproof and breathable film, paper, mesh cloth or other single or composite structure with certain sound resistance.

[0053] Optionally, the support member 32 is provided with a through hole 321, and the number of the through holes 321 is multiple. The multiple through holes 321 are arranged in a circumferential array, so that the overall strength of the support member 32 is ensured while the appearance is more beautiful.

[0054] Optionally, the number of the openings 111 is multiple, and the number of the sound resistance mechanisms 30 is also multiple. The sound resistance mechanisms 30 are arranged one by one corresponding to the openings 111. It can be understood that the openings 111 can be arranged on the first shell 11 and / or the second shell 12, and the position of the opening 111 is not limited in the embodiment. The opening 111 can be of any shape, for example, the opening 111 can be circular, oval or polygonal, but is not limited thereto.

[0055] Optionally, the loudspeaker device 100 further includes a torque stopping structure, which includes a torque stopping protrusion 322 and a torque stopping groove. Among the surfaces of the sound resistance mechanism 30 and the shell 10 facing each other, the support member 32 of the sound resistance mechanism 30 is provided with the torque stopping protrusion 322, and the shell 10 is provided with the torque stopping groove. The torque stopping protrusion 322 and the torque stopping groove are inserted and matched, so as to prevent the sound resistance mechanism 30 from rotating relative to the shell 10. In other embodiments, the torque stopping protrusion 322 can be arranged on the shell 10, and the torque stopping groove is arranged on the support member 32 of the sound resistance mechanism 30.

[0056] As shown in FIGS. 1-3, the loudspeaker mechanism 20 comprises a basket 21, a diaphragm 22, a voice coil 23 and a magnetic circuit system 24, the four peripheral edges of the diaphragm 22 are fixedly connected to the basket 21, the magnetic circuit system 24 is also fixed to the basket 21, and the diaphragm 22 covers the magnetic circuit system 24 and is surrounded by the basket 21 and the magnetic circuit system 24 to form a closed acoustic cavity, the voice coil 23 is located in the acoustic cavity and is adhesively connected to one end of the diaphragm 22, the other end of the voice coil 23 is inserted into a magnetic gap of the magnetic circuit system 24, the voice coil 23 divides the acoustic cavity into an inner space located on the inner side of the voice coil 23 and an outer space located on the outer side of the voice coil 23, and the inner space and the outer space are in communication through the magnetic gap. When an electric current passes through the voice coil 23, an electromagnetic field is generated, which interacts with the permanent magnetic field of the magnetic circuit system 24 to make the voice coil 23 vibrate, and finally the voice coil 23 drives the diaphragm 22 to vibrate to produce sound.

[0057] As shown in FIG. 1, the basket 21 is provided with a clamping groove 121, and the second shell 12 is provided with a clamping head 211, the clamping head 211 is inserted into the clamping groove 121 in a plug-fit manner, which facilitates the quick disassembly and assembly of the basket 21 and the second shell 12, thereby improving the installation efficiency of the basket 21 and the second shell 12. In other embodiments, the clamping head 211 can be provided on the shell 10, and the clamping groove 121 can be provided on the basket 21, which is not limited herein.

[0058] Optionally, the magnetic circuit system 24 comprises a front piece 241, a magnetic steel 242 and a rear piece 243, the middle part of the rear piece 243 has a cylindrical part extending upward, the magnetic steel 242 and the front piece 241 are sequentially sleeved on the cylindrical part from bottom to top, and there is a gap between the cylindrical part and the front piece 241 and the magnetic steel 242, i.e. the magnetic gap is formed. The magnetic steel 242 is a ferrite, a rubidium iron boron or a rubidium nickel cobalt magnetic steel.

[0059] The loudspeaker mechanism 20 further comprises a positioning support 25, the positioning support 25 is sleeved on the voice coil 23, and the outer edge of the positioning support 25 is fixed on the basket 21, so as to prevent the voice coil 23 from horizontally shaking and make the voice coil 23 only vibrate in the up-down direction.

[0060] The loudspeaker mechanism 20 further comprises a dustproof piece 26 configured to cover the voice coil 23, and the dustproof piece 26 can prevent dust from entering the inside of the loudspeaker mechanism 20.

[0061] The embodiment also provides a vehicle sound box system, which comprises the loudspeaker device 100 described above, and the vehicle sound box system has good sound quality.

[0062] The embodiment also provides a vehicle, which comprises the loudspeaker device 100 described above or the vehicle sound system described above, and the vehicle has good sound quality. Exemplarily, the loudspeaker device 100 is installed on the door panel of the vehicle and is used as a door panel loudspeaker.

[0063] Note that, in the description of the present specification, the description using the terms "some embodiments", "other embodiments", and the like means that the specific feature, structure, material, or the like described in the embodiments or examples is included in at least one embodiment or example of the present application. The illustrative expressions of the above terms do not necessarily refer to the same embodiment or example throughout the present specification. Moreover, the specific feature, structure, material, or the like described can be combined in an appropriate manner in any one or more embodiments or examples.

Claims

1. A loudspeaker device, comprising: a housing (10) having an opening (111) and a sound outlet (112) ; a loudspeaker mechanism (20) disposed in the housing (10) and jointly forming a cavity (13) with the housing (10), the opening (111) and the sound outlet (112) both communicating with the cavity (13) ; a sound resistance mechanism (30) disposed in the opening (111).

2. The speaker apparatus according to claim 1, wherein The sound resistance mechanism (30) comprises: a sound resistance piece (31) disposed in the opening (111) ; a support piece (32) disposed on a side of the sound resistance piece (31) away from the loudspeaker mechanism (20).

3. The speaker apparatus according to claim 2, wherein The support piece (32) is provided with a through hole (321), and a plurality of the through holes (321) are arranged in a circumferential array.

4. The speaker apparatus according to claim 1, wherein The number of the openings (111) is plural, and the number of the sound resistance mechanisms (30) is also plural, and the sound resistance mechanisms (30) are disposed one by one corresponding to the openings (111).

5. The speaker apparatus according to claim 1, wherein The loudspeaker device further comprises: a torque stopping structure comprising a torque stopping protrusion (322) and a torque stopping groove, wherein one of the surfaces of the sound resistance mechanism (30) and the housing (10) towards each other is provided with the torque stopping protrusion (322), and the other is provided with the torque stopping groove, and the torque stopping protrusion (322) and the torque stopping groove are inserted and matched.

6. The speaker apparatus according to claim 1, wherein The housing (10) further comprises: a reinforcing structure (114) disposed on a top plate and / or a side plate of the housing (10).

7. The loudspeaker apparatus of any one of claims 1-6, wherein, The loudspeaker mechanism (20) comprises: a basket (21) detachably connected with the housing (10) ; a diaphragm (22) disposed on the basket (21) and arranged to vibrate to produce sound; a voice coil (23) arranged to drive the diaphragm (22) to vibrate; a magnetic circuit system (24) arranged to drive the voice coil (23) to vibrate, the magnetic circuit system (24) being disposed on the basket (21) and having a magnetic gap arranged for the lower end of the voice coil (23) to be inserted into, and at least part of the voice coil (23) being inserted into the magnetic gap.

8. The speaker apparatus according to claim 7, wherein One of the basket (21) and the housing (10) is provided with a clamping groove (121), and the other is provided with a clamping head (211), and the clamping head (211) and the clamping groove (121) are inserted and matched. 9.A vehicle sound system comprising the loudspeaker device according to any one of claims 1-8. 10.A vehicle comprising the loudspeaker device according to any one of claims 1-8 or the vehicle sound system according to claim 9.

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