Loudspeaker device, vehicle sound box system and vehicle

Abstract

The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker device, a vehicle sound box system and a vehicle. The loudspeaker device comprises a shell, a loudspeaker mechanism and an acoustic resistance mechanism, the shell is provided with an open hole and a sound outlet, the loudspeaker mechanism is arranged in the shell and forms a cavity together with the shell, the open hole and the sound outlet are communicated with the cavity, the acoustic resistance mechanism is arranged in the open hole, sound waves emitted by the loudspeaker mechanism are radiated outwards from the sound outlet through the cavity, and the acoustic resistance mechanism is arranged in the open hole. The opening communicated with the cavity is formed in the shell, and the acoustic resistance mechanism is arranged at the opening, so that Helmholtz resonance of the cavity can be destroyed, the acoustic structure of the cavity can be changed, the peak and valley of frequency response are inhibited, the frequency response curve is flatter, and the tone quality is improved. The vehicle sound box system has better sound quality by applying the loudspeaker device. The vehicle has better tone quality by applying the loudspeaker device or the vehicle sound box system.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker device, a vehicle sound box system and a vehicle. Background Art

[0002] A loudspeaker device is an electroacoustic transducer that converts electrical energy into sound energy and radiates it into the distance in the air.

[0003] In the prior art, in order to achieve low-pass filtering and improve the low-frequency sound quality, a cavity is usually added outside the loudspeaker device, and the sound waves emitted by the loudspeaker device are radiated outward through the sound outlet communicating with the cavity. However, the cavity with a sound outlet will form a Helmholtz resonance cavity in front of the diaphragm, which will cause obvious resonance peaks and valleys in the sound pressure frequency characteristics of the loudspeaker system at the high-frequency cut-off frequency point, resulting in uneven transition of the frequency response curve in this frequency range, reducing the flatness of the frequency response curve, damaging the sound quality, and further deteriorating the acoustic performance.

[0004] Therefore, there is an urgent need for a loudspeaker device, a vehicle sound box system and a vehicle to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model 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] To achieve the above purpose, the following technical solutions are provided:

[0007] A loudspeaker device, comprising:

[0008] A housing, the housing having an opening and a sound outlet;

[0009] A loudspeaker mechanism, the loudspeaker mechanism being disposed in the housing and jointly forming a cavity with the housing, the opening and the sound outlet both communicating with the cavity;

[0010] A sound resistance mechanism, the sound resistance mechanism being disposed in the opening.

[0011] As an optional solution, the sound resistance mechanism includes:

[0012] A sound resistance member, disposed in the opening;

[0013] A support member, disposed on a side of the sound resistance member away from the loudspeaker mechanism.

[0014] As an optional solution, the support member is provided with through holes, the number of the through holes is multiple, and the multiple through holes are arranged in a circumferential array.

[0015] As an alternative, the number of the openings is multiple, and the number of the acoustic resistance mechanisms is also multiple. The acoustic resistance mechanisms are arranged in one-to-one correspondence with the openings.

[0016] As an alternative, the loudspeaker device further includes:

[0017] A torque stopping structure, which includes a torque stopping protrusion and a torque stopping groove. Among the surfaces of the acoustic resistance mechanism and the housing facing each other, one is provided with the torque stopping protrusion, and the other is provided with the torque stopping groove. The torque stopping protrusion is in plug-in fit with the torque stopping groove.

[0018] As an alternative, the housing further includes:

[0019] A strengthening structure, which is arranged on the top plate and / or the side plates of the housing.

[0020] As an alternative, the loudspeaker mechanism includes:

[0021] A chassis, which is detachably connected to the housing;

[0022] A diaphragm, which is arranged on the chassis and is used for vibrating to generate sound;

[0023] A voice coil, which is used for driving the diaphragm to vibrate;

[0024] A magnetic circuit system, which is used for driving the voice coil to vibrate. The magnetic circuit system is arranged on the chassis and has a magnetic gap for the lower end of the voice coil to be inserted into. At least part of the voice coil is inserted into the magnetic gap.

[0025] As an alternative, one of the chassis and the housing is provided with a card slot, and the other is provided with a card head. The card head is in plug-in fit with the card slot.

[0026] A vehicle speaker system, including the above-mentioned loudspeaker device.

[0027] A vehicle, including the above-mentioned loudspeaker device or the above-mentioned vehicle speaker system.

[0028] Compared with the prior art, the beneficial effects of the present utility model are:

[0029] The loudspeaker device provided by the present utility model includes a housing, a loudspeaker mechanism, and a sound resistance mechanism. The housing has an opening and a sound outlet. The loudspeaker mechanism is disposed inside the housing and together with the housing forms a cavity. Both the opening and the sound outlet are in communication with the cavity. The sound resistance mechanism is disposed in the opening. The sound waves emitted by the loudspeaker mechanism are radiated to the outside from the sound outlet via the cavity. By providing an opening communicating with the cavity on the housing and disposing 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, thereby suppressing the peaks and valleys of the frequency response and making the frequency response curve flatter, improving the sound quality.

[0030] The vehicle speaker system provided by the present utility model has good sound quality by applying the above loudspeaker device.

[0031] The vehicle provided by the present utility model has good sound quality by applying the above loudspeaker device or the above vehicle speaker system. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.

[0033] Figure 1 One of the structural schematic diagrams of the loudspeaker device provided by the embodiment of the present utility model;

[0034] Figure 2 Another structural schematic diagram of the loudspeaker device provided by the embodiment of the present utility model;

[0035] Figure 3 For Figure 2 The cross-sectional view taken along A-A in

[0036] Figure 4 One of the structural schematic diagrams of the first housing provided by the embodiment of the present utility model;

[0037] Figure 5 Another structural schematic diagram of the first housing provided by the embodiment of the present utility model;

[0038] Figure 6 The structural schematic diagram of the sound resistance mechanism provided by the embodiment of the present utility model;

[0039] Figure 7 The cross-sectional view of the sound resistance mechanism provided by the embodiment of the present utility model.

[0040] Reference Signs:

[0041] 100. Loudspeaker device;

[0042] 10. Housing; 11. First housing; 111. Opening; 112. Sound outlet; 113. Sound guide tube; 114. Reinforcing structure; 12. Second housing; 121. Card slot; 13. Cavity;

[0043] 20. Loudspeaker mechanism; 21. Speaker frame; 211. Clamping head; 22. Diaphragm; 23. Voice coil; 24. Magnetic circuit system; 241. Front plate; 242. Magnet; 243. Rear plate; 25. Positioning support piece 25; 26. Dust-proof part;

[0044] 30. Acoustic resistance mechanism; 31. Acoustic resistance piece; 32. Support piece; 321. Through hole; 322. Anti-twist protrusion;

[0045] 40. Fixing part. Detailed implementation manners

[0046] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0047] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0048] In addition, if terms such as "first" and "second" appear, these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if the term "plural" appears, the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0049] In this application, unless otherwise clearly specified or limited, if terms such as "installed", "connected", "joined", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] In this application, unless otherwise clearly specified or limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0051] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0052] In the prior art, in order to achieve low-pass filtering and improve the low-frequency sound quality, a cavity is usually added outside the speaker device, and the sound waves emitted by the speaker device are radiated outward through the sound outlet communicating with the cavity. However, the cavity with a sound outlet will form a Helmholtz resonance cavity, causing obvious resonance peaks and resonance valleys in the sound pressure frequency characteristic of the speaker system at the high-frequency cut-off frequency point, resulting in an uneven transition of the frequency response curve in this frequency range, reducing the flatness of the frequency response curve, damaging the sound quality, and further deteriorating the acoustic performance.

[0053] To solve the above problems, as Figures 1 - 3As shown in the figure, this embodiment provides a speaker device 100, which includes a housing 10, a speaker mechanism 20, and a sound resistance mechanism 30. The housing 10 has an opening 111 and a sound outlet 112. The speaker mechanism 20 is disposed inside the housing 10 and together with the housing 10 forms a cavity 13. The opening 111 and the sound outlet 112 are both in communication with the cavity 13. The sound resistance mechanism 30 is disposed in the opening 111. The sound wave emitted by the speaker mechanism 20 radiates to the outside from the sound outlet 112 through the cavity 13. By providing the opening 111 communicating with the cavity 13 on the housing 10 and disposing the sound 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, thereby suppressing the peaks and valleys of the frequency response, making the frequency response curve flatter, and improving the sound quality.

[0054] Optionally, the housing 10 is further provided with a sound guide tube 113 for communicating the cavity 13 and the sound outlet 112. By opening the opening 111 on the housing 10 and disposing the sound resistance mechanism 30 at the opening 111, on the one hand, the sound guide tube 113 can be designed as required, serving as a conversion of the installation structure. For example, when applied in an automobile, the sound guide tube 113 can connect the speaker mechanism 20 and the vehicle compartment wall, and simulate the sound radiation of an infinite baffle by means of the vehicle compartment wall. The sound outlet 112 with an area smaller than that of the diaphragm 22 can be designed to meet the possible restrictions on the area of the sound outlet 112 in practical applications. On the other hand, in terms of acoustic function, the cavity 13 of the opening 111 has a low-pass filtering effect, and the acoustic load volume is much larger than that of the conventional models - closed box and bass reflex box designs, and the low-frequency sound power is greatly improved. The sound guide tube 113 can also increase the effective vibration mass Mms of the speaker, reduce the resonance frequency f0, and improve the low-frequency sound quality.

[0055] As Figures 1 - 5 shown in the figure, the housing 10 includes a first housing 11 and a second housing 12. The first housing 11 and the second housing 12 are detachably connected, facilitating the quick disassembly and assembly of the first housing 11 and the second housing 12.

[0056] Optionally, the speaker device 100 further includes a fixing member 40. The first housing 11 and the second housing 12 are detachably connected through the fixing member 40. Among them, the fixing member 40 can be a combination of one or more of screws, rivets, or movable buckles.

[0057] Furthermore, the number of the fixing members 40 is multiple, and the multiple fixing members 40 are spaced apart on the periphery of the housing 10, which is beneficial to improving the connection stability between the first housing 11 and the second housing 12.

[0058] As Figures 3 - 5As shown, a reinforcing structure 114 is further provided on the first housing 11. The reinforcing structure 114 is provided on the top plate and / or side plates of the housing 10, which can improve the structural strength of the first housing 11. Specifically, the reinforcing structure 114 is a reinforcing rib.

[0059] As Figures 1 - 7 shown, the acoustic resistance mechanism 30 includes an acoustic resistance member 31 and a support member 32. The acoustic resistance member 31 is disposed within the opening 111, and the support member 32 is disposed on a side of the acoustic resistance member 31 away from the speaker mechanism 20. The acoustic resistance member 31 is fixed within the opening 111 of the housing 10 through the support member 32.

[0060] As Figure 4 and Figure 5 shown, a reinforcing structure 114 is provided inside the first housing 11. The reinforcing structure 114 forms a support surface at the opening 111, and the acoustic resistance mechanism 30 is supported on this support surface. The structural design of the housing 10 is ingenious and has a high integration level.

[0061] Specifically, the acoustic resistance member 31 can be a waterproof and breathable membrane, paper, mesh cloth, or other single or composite structures with a certain acoustic resistance, etc.

[0062] Optionally, the support member 32 is provided with through holes 321. The number of the through holes 321 is multiple, and the multiple through holes 321 are arranged in a circumferential array, achieving a more beautiful shape while ensuring the overall strength of the support member 32.

[0063] Optionally, the number of the openings 111 is multiple, and the number of the acoustic resistance mechanisms 30 is also multiple. The acoustic resistance mechanisms 30 are arranged in one-to-one correspondence with the openings 111. It can be understood that the openings 111 can be opened on the first housing 11 and / or the second housing 12. The position of the openings 111 is not limited in this embodiment. The openings 111 can be of any shape. Exemplarily, the openings 111 can be circular, elliptical, or polygonal, but not limited thereto.

[0064] Optionally, the speaker device 100 further includes an anti-twist structure. The anti-twist structure includes an anti-twist protrusion 322 and an anti-twist groove. Among the surfaces of the acoustic resistance mechanism 30 and the housing 10 facing each other, the support member 32 of the acoustic resistance mechanism 30 is provided with the anti-twist protrusion 322, and the housing 10 is provided with the anti-twist groove. The anti-twist protrusion 322 is inserted and matched with the anti-twist groove to prevent the acoustic resistance mechanism 30 from rotating relative to the housing 10. In other embodiments, the anti-twist protrusion 322 can be provided on the housing 10, and the anti-twist groove is provided on the support member 32 of the acoustic resistance mechanism 30.

[0065] As Figures 1 - 3As shown, the speaker mechanism 20 includes a chassis 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 chassis 21, and the magnetic circuit system 24 is also fixed to the chassis 21. The diaphragm 22 covers the magnetic circuit system 24 and forms a closed sound cavity with the chassis 21 and the magnetic circuit system 24. The voice coil 23 is located in the sound cavity and is adhesively connected to the diaphragm 22 at one end, and the other end of the voice coil 23 is inserted into the magnetic gap of the magnetic circuit system 24. The voice coil 23 divides the sound cavity into an inner space inside the voice coil 23 and an outer space outside the voice coil 23, and the inner space communicates with the outer space through the magnetic gap. When an electric current passes through the voice coil 23, an electromagnetic field will be generated, and then the generated electromagnetic field interacts with the permanent magnetic field of the magnetic circuit system 24, causing the voice coil 23 to vibrate. Finally, the voice coil 23 drives the diaphragm 22 to vibrate and produce sound.

[0066] As Figure 1 shown, the chassis 21 is provided with a card slot 121, and the second housing 12 is provided with a card head 211. The card head 211 is inserted and matched with the card slot 121, which is convenient for the quick disassembly and assembly of the chassis 21 and the second housing 12, thereby improving the installation efficiency of the chassis 21 and the second housing 12. In other embodiments, the card head 211 can also be provided on the housing 10, and the card slot 121 is provided on the chassis 21, which is not limited herein.

[0067] Optionally, the magnetic circuit system 24 includes a front plate 241, a magnet 242, and a rear plate 243. The middle part of the rear plate 243 has a columnar part extending upward. The magnet 242 and the front plate 241 are sleeved on the columnar part in sequence from bottom to top, and there is a gap between the columnar part and the front plate 241 and the magnet 242, that is, the above-mentioned magnetic gap is formed. The magnet 242 is a ferrite, neodymium iron boron, or neodymium nickel cobalt magnet.

[0068] The speaker mechanism 20 further includes a positioning support piece 25. The positioning support piece 25 is sleeved on the voice coil 23, and the outer edge of the positioning support piece 25 is fixed to the chassis 21 to prevent the voice coil 23 from shaking horizontally, so that the voice coil 23 can only vibrate in the up and down directions.

[0069] The speaker mechanism 20 further includes a dust-proof member 26 for covering the voice coil 23. The dust-proof member 26 can prevent dust from entering the inside of the speaker mechanism 20.

[0070] This embodiment also provides a vehicle speaker system. The vehicle speaker system includes the above-mentioned speaker device 100, and the vehicle speaker system has better sound quality.

[0071] This embodiment also provides a vehicle. The vehicle includes the above-mentioned speaker device 100 or the above-mentioned vehicle speaker system, and the vehicle has better sound quality. Exemplarily, the speaker device 100 is installed on the door panel of the vehicle and used as a door panel speaker.

[0072] Note that in the description of this specification, the descriptions referring to the reference terms "some embodiments", "other embodiments", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0073] The above are only the preferred embodiments of the present utility model and the technical principles applied. Those skilled in the art will understand that the present utility model is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present utility model. Therefore, although the present utility model has been described in more detail through the above embodiments, the present utility model is not limited to the above embodiments. Without departing from the concept of the present utility model, more other equivalent embodiments can be included, and the scope of the present utility model is determined by the scope of the appended claims.

Claims

1. A loudspeaker device, characterized in that, Comprising: A housing (10), the housing (10) having an opening (111) and a sound outlet (112); A speaker mechanism (20), the speaker mechanism (20) being disposed within the housing (10) and jointly forming a cavity (13) with the housing (10), the opening (111) and the sound outlet (112) both being in communication with the cavity (13); A sound resistance mechanism (30), the sound resistance mechanism (30) being disposed within the opening (111).

2. The loudspeaker device according to claim 1, characterized in that, The sound resistance mechanism (30) comprises: A sound resistance member (31), disposed within the opening (111); A support member (32), disposed on a side of the sound resistance member (31) away from the speaker mechanism (20).

3. The loudspeaker device according to claim 2, characterized in that, The support member (32) is provided with through holes (321), the number of the through holes (321) being multiple, and the multiple through holes (321) being arranged in a circumferential array.

4. The loudspeaker device according to claim 1, characterized in that, 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) being provided in one-to-one correspondence with the openings (111).

5. The loudspeaker device according to claim 1, characterized in that, The speaker device further comprises: An anti-twist structure, the anti-twist structure comprising an anti-twist protrusion (322) and an anti-twist groove, on surfaces of the sound resistance mechanism (30) and the housing (10) facing each other, one of them is provided with the anti-twist protrusion (322), and the other is provided with the anti-twist groove, the anti-twist protrusion (322) being in plug-in fit with the anti-twist groove.

6. The loudspeaker device according to claim 1, characterized in that, The housing (10) further comprises: A strengthening structure (114), the strengthening structure (114) being disposed on the top plate and / or side plates of the housing (10).

7. The loudspeaker device according to any one of claims 1 to 6, characterized in that, The speaker mechanism (20) comprises: A chassis (21), detachably connected to the housing (10); A diaphragm (22), the diaphragm (22) being disposed on the chassis (21), the diaphragm (22) being used for vibrating to generate sound; A voice coil (23), the voice coil (23) being used for driving the diaphragm (22) to vibrate; A magnetic circuit system (24), the magnetic circuit system (24) being used for driving the voice coil (23) to vibrate, the magnetic circuit system (24) being disposed on the chassis (21), the magnetic circuit system (24) having a magnetic gap for the lower end portion of the voice coil (23) to be inserted into, and at least a part of the voice coil (23) being inserted into the magnetic gap.

8. The loudspeaker device according to claim 7, characterized in that, One of the chassis (21) and the housing (10) is provided with a card slot (121), and the other of them is provided with a card head (211), the card head (211) being in plug-in fit with the card slot (12).

9. Vehicle audio system, characterized in that, Comprising the speaker device according to any one of claims 1-8.

10. A vehicle, characterized in that, Comprising the speaker device according to any one of claims 1-8 or the vehicle speaker system according to claim 9.

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