Vehicle-mounted audio system and vehicle

Abstract

This disclosure provides a vehicle audio system and vehicle, belonging to the field of automotive audio technology. The vehicle audio system includes multiple first speaker components and second speaker components. Each first speaker component includes a first loudspeaker and a first passive crossover. The output of the first passive crossover is connected to the first loudspeaker, and the input of the first passive crossover is used to connect to the vehicle's infotainment system. The first passive crossover is used to divide the full-range audio signal output by the vehicle's infotainment system into a first frequency audio signal. Referring to the figures, the second speaker component includes a second loudspeaker and a second passive crossover. The output of the second passive crossover is connected to the second loudspeaker, and the input of the second passive crossover is used to connect to the vehicle's infotainment system. The second passive crossover is used to divide the full-range audio signal output by the vehicle's infotainment system into a second frequency audio signal, wherein the frequency corresponding to the second frequency audio signal is lower than the frequency corresponding to the first frequency audio signal.

Description

Technical Field

[0001] This disclosure pertains to the field of automotive audio technology, and specifically relates to an in-vehicle audio system and a vehicle. Background Technology

[0002] As vehicles evolve, users are demanding higher and higher audio quality from their vehicles.

[0003] In lower-end models, to reduce costs, the car audio system typically uses a standard two-way speaker system. A standard two-way speaker system usually includes door speakers, which are installed in the doors, and the car's head unit outputs the full-range audio signal to the door speakers to produce sound.

[0004] However, because the door speakers need to output bass, midrange and treble frequencies, the sound quality of the sound emitted by the door speakers is not good. Summary of the Invention

[0005] This disclosure provides a vehicle audio system and a vehicle that can solve the technical problems existing in related technologies. The technical solution is as follows: This disclosure provides a vehicle audio system, which includes a plurality of first speaker components and second speaker components; The first speaker assembly includes a first loudspeaker and a first passive crossover. The output of the first passive crossover is connected to the first loudspeaker, and the input of the first passive crossover is used to connect to the vehicle infotainment system. The first passive crossover is used to divide the full-frequency audio signal output by the vehicle infotainment system into a first frequency audio signal. The second speaker assembly includes a second loudspeaker and a second passive crossover. The output of the second passive crossover is connected to the second loudspeaker, and the input of the second passive crossover is used to connect to the vehicle infotainment system. The second passive crossover is used to divide the full-range audio signal output by the vehicle infotainment system into a second frequency audio signal, wherein the frequency corresponding to the second frequency audio signal is lower than the frequency corresponding to the first frequency audio signal.

[0006] In some possible implementations, the number of the first speaker components is four.

[0007] In some possible implementations, the second speaker assembly further includes a first enclosure having a first cavity, in which the second speaker and the second passive crossover are both mounted.

[0008] In some possible implementations, the number of the second speakers and the number of the second passive crossovers are both two, with the outputs of the two second passive crossovers connected to the two second speakers respectively, and the inputs of the two passive crossovers used to connect to the vehicle infotainment system.

[0009] In some possible implementations, the second speaker assembly further includes a first phase inverter tube, which is installed in the first cavity and one end of the first phase inverter tube penetrates through the first housing.

[0010] In some possible implementations, the second speaker assembly further includes a second phase inverter tube, which is installed in the first cavity and one end of the second phase inverter tube penetrates through the first housing.

[0011] In some possible implementations, the first phase inverter and the second phase inverter respectively penetrate two surfaces of the first housing.

[0012] In some possible implementations, the second speaker assembly further includes a second enclosure located inside the first enclosure and connected to the inner wall of the first enclosure; the second enclosure has a second cavity that accommodates the second phase inverter tube; and through holes are provided on two opposite side walls of the second enclosure, both of which communicate with the second cavity. The edges of the two second speakers are respectively attached to the edges of the two through holes formed by the second enclosure.

[0013] In some possible implementations, both second speakers are located in the first cavity and are arranged opposite each other.

[0014] This disclosure also provides a vehicle, which includes the vehicle audio system and the vehicle infotainment system as described above.

[0015] The technical solution provided in this disclosure includes at least the following beneficial effects: The vehicle audio system disclosed herein uses a first passive crossover to divide the full-range audio signal output by the vehicle's head unit into a first frequency audio signal before transmitting it to the first speaker, so that the first speaker only needs to produce mid-range and high-range frequencies. The second passive crossover divides the full-range audio signal output by the vehicle's head unit into a second frequency audio signal before transmitting it to the second speaker, so that the second speaker only needs to produce bass frequencies. This improves the sound quality of the vehicle audio system while keeping the cost of the vehicle audio system in mind.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. In the drawings: Figure 1This is a schematic diagram of a first embodiment of a vehicle audio system provided in this disclosure; Figure 2 This is a schematic diagram of the internal structure of a second speaker assembly provided in an embodiment of this disclosure; Figure 3 This is a schematic diagram of a second embodiment of a vehicle audio system provided in this disclosure; Figure 4 This is a schematic diagram of a third embodiment of a vehicle audio system provided in this disclosure; Figure 5 This is a schematic diagram of a fourth embodiment of a vehicle audio system provided in this disclosure; Figure 6 This is a schematic diagram of another internal structure of a second speaker assembly provided in an embodiment of this disclosure.

[0018] Legend 1. Car audio system; 11. First speaker assembly; 111. First loudspeaker; 112. First passive crossover; 113. Third loudspeaker; 114. Third passive crossover; 12. Second speaker assembly; 121. Second loudspeaker; 122. Second passive crossover; 123. First enclosure; 1231. First cavity; 124. First bass reflex port; 125. Second bass reflex port; 126. Second enclosure; 1261. Second cavity; 13. The first pair of plugins; 14. The second pair of plugins; 15. Multi-channel frequency divider assembly; 2. In-vehicle infotainment system.

[0019] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings.

[0021] The terminology used in the embodiments of this disclosure is for illustrative purposes only and is not intended to limit the disclosure. Unless otherwise defined, the technical or scientific terms used herein should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” “third,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “a” or “one,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising,” “including,” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected,” “linked,” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0022] Car audio systems are generally divided into standard two-way systems and high-end three-way systems. Lower-end models with lower budgets typically use standard two-way systems. A standard two-way system can be a 4.0 audio system, including four door speakers. The full-range audio signal output from the car's head unit is transmitted to the four door speakers. The door speakers need to balance bass, midrange, and treble when producing sound, resulting in less than ideal sound quality. Higher-end models with higher budgets typically use high-end three-way systems. A high-end three-way audio system can be at least a 4.1 audio system, including four door speakers and one subwoofer. The car's head unit transmits the full-range audio signal to an independent amplifier box via A2B (Automotive Audio Bus). The independent amplifier box actively divides the full-range audio signal into low-frequency, mid-frequency, and high-frequency audio signals. The mid-frequency and high-frequency audio signals can then be transmitted to the four door speakers, so that the four door speakers only need to produce mid-range and high-frequency sounds. The low-frequency audio signal is transmitted to the subwoofer, so that the subwoofer only produces bass sounds, thereby improving the sound quality.

[0023] This disclosure provides a vehicle audio system 1, with reference to... Figure 1The vehicle audio system 1 includes multiple first speaker components 11 and second speaker components 12. Each first speaker component 11 includes a first loudspeaker 111 and a first passive crossover 112. The output of the first passive crossover 112 is connected to the first loudspeaker 111, and the input of the first passive crossover 112 is used to connect to the vehicle infotainment system 2. The first passive crossover 112 is used to divide the full-range audio signal output by the vehicle infotainment system 2 into a first frequency audio signal. (Reference) Figure 2 The second speaker assembly 12 includes a second speaker 121 and a second passive crossover 122. The output of the second passive crossover 122 is connected to the second speaker 121, and the input of the second passive crossover 122 is used to connect to the vehicle infotainment system 2. The second passive crossover 122 is used to divide the full-frequency audio signal output by the vehicle infotainment system 2 into a second frequency audio signal, wherein the frequency corresponding to the second frequency audio signal is lower than the frequency corresponding to the first frequency audio signal.

[0024] For example, the first speaker 111 can be a door speaker, the first passive crossover 112 can be a mid-high frequency crossover, the second speaker 121 can be a woofer, and the second passive crossover 122 can be a woofer crossover.

[0025] The full-range audio signal output by the vehicle system 2 to the first speaker assembly 11 is first transmitted to the first passive crossover 112. The first passive crossover 112 divides the full-range audio signal into a first frequency audio signal, which may include mid-range audio signal and high-range audio signal. That is, the first passive crossover 112 can block the low-range audio signal of the full-range audio signal, while allowing the mid-range audio signal and high-range audio signal of the full-range audio signal to pass through. The first frequency audio signal is transmitted to the first speaker 111, so that the first speaker 111 only needs to take into account the mid-range and high-range when it emits sound.

[0026] The full-range audio signal output by the vehicle system 2 to the second speaker assembly 12 is first transmitted to the second passive crossover 122. The second passive crossover 122 divides the full-range audio signal into a second frequency audio signal, wherein the second frequency audio signal can be a bass audio signal. That is, the second passive crossover 122 can block the mid-range and high-range audio signals of the full-range audio signal, while allowing the bass audio signal of the full-range audio to pass through. The second frequency audio signal is transmitted to the second speaker 121, so that the second speaker 121 only needs to emit bass when it emits sound.

[0027] By adopting the technical solution of this disclosure embodiment, the full-range audio signal output by the vehicle unit 2 can be divided into a first frequency audio signal by the first passive crossover 112 and then transmitted to the first speaker 111, so that the first speaker 111 only needs to produce mid-range and high-range sound. The full-range audio signal output by the vehicle unit 2 can be divided into a second frequency audio signal by the second passive crossover 122 and then transmitted to the second speaker 121, so that the second speaker 121 only needs to produce bass sound. The sound quality of the vehicle audio system 1 can be improved without the need for an independent power amplifier box. While improving the sound quality of the vehicle audio system 1, the cost of the vehicle audio system 1 can also be taken into account, so that the vehicle audio system 1 of this disclosure embodiment can also be used in low-end models, thereby improving the sound quality of the vehicle audio system 1 in low-end models.

[0028] The first passive crossover 112 may include a first capacitor (not shown in the figure) and a first inductor (not shown in the figure) connected in series, wherein the first inductor may be the inductance of the voice coil of the first speaker 111.

[0029] The capacitance of the first capacitor can range from 50 to 200 μF. Of course, the capacitance of the first capacitor can also be less than 50 μF or greater than 200 μF; this is not limited here. For example, the capacitance of the first capacitor can be 100 μF.

[0030] The second passive crossover 122 may also include a second capacitor (not shown in the figure) and a second inductor (not shown in the figure) connected in series, wherein the second inductor may be the inductance of the voice coil of the second speaker 121.

[0031] The second passive frequency divider 122 can have a frequency division range of 80Hz to 300Hz. For example, the frequency division of the second passive frequency divider 122 is 120Hz.

[0032] The first speaker 111 and the second speaker 121 can be circular or elliptical, etc., and are not limited thereto. Taking the first speaker 111 and the second speaker 121 as circular as an example, the diameter of the first speaker 111 and the second speaker 121 can be in the range of 4-6 inches. For example, the diameter of the first speaker 111 and the second speaker 121 can be 5.25 inches.

[0033] In some possible implementations, refer to Figure 1 The number of the first speaker components 11 is four.

[0034] The first speakers 111 of the four sets of first speaker assemblies 11 can be installed on the left front door, right front door, left rear door and right rear door of the vehicle respectively.

[0035] The input terminals of the first passive crossover 112 of the four sets of first speaker components 11 are respectively connected to the four independent audio output channels of the vehicle unit 2. The vehicle unit 2 outputs full-frequency audio signals to the four sets of first speaker components 11 through the four independent audio output channels.

[0036] In some possible implementations, all four sets of first speaker components 11 are electrically connected to the vehicle infotainment system 2 via the vehicle wiring harness.

[0037] The four sets of first speaker components 11 can be connected to the four independent audio output channels of the vehicle head unit 2 through four vehicle wiring harnesses. Connecting the first speaker components 11 to the vehicle head unit 2 through the vehicle wiring harness reduces costs compared to connecting the first speaker components 11 to the vehicle head unit 2 through A2B.

[0038] In some possible implementations, refer to Figure 3 The first speaker assembly 11 may further include a third speaker 113 and a third passive crossover 114. The output of the third passive crossover 114 is connected to the third speaker 113, and the output of the third passive crossover 114 is connected to the output of the first passive crossover 112. The third passive crossover 114 is used to divide the first frequency audio signal into a third frequency audio signal, wherein the frequency corresponding to the third frequency audio signal is at least greater than a portion of the first frequency audio signal.

[0039] Among them, the third passive frequency divider 114 can be a high-frequency frequency divider, and the third frequency audio signal can be a high-frequency audio signal.

[0040] The full-range audio signal output by the vehicle system 2 to the first speaker assembly 11 is first transmitted to the first passive crossover 112. The first passive crossover 112 divides the full-range audio signal into a first frequency audio signal, wherein the first frequency audio signal may include a mid-range audio signal and a high-range audio signal. That is, the first passive crossover 112 can block the low-range audio signal of the full-range audio signal, while allowing the mid-range audio signal and the high-range audio signal of the full-range audio signal to pass through.

[0041] The first frequency audio signal is transmitted to the first speaker 111, so that the first speaker 111 only needs to take into account the mid-range and high-range when it emits sound.

[0042] During the transmission of the first frequency audio signal to the second speaker 121, it is first divided into a third frequency audio signal by the third passive crossover 114. That is, the third passive crossover 114 can block the mid-range audio signal of the first frequency audio signal, while allowing the high-frequency audio signal of the first frequency audio signal to pass through. The third frequency audio signal is transmitted to the third speaker 113, so that the third speaker 113 only needs to emit high frequencies when it sounds.

[0043] The third passive crossover 114 may include a third capacitor (not shown in the figure) and a third inductor (not shown in the figure) connected in series. The third inductor may be the inductance of the voice coil of the third speaker 113.

[0044] The capacitance of the third capacitor can range from 1 to 10 μF. Of course, the capacitance of the third capacitor can also be less than 1 μF or greater than 10 μF; this is not limited here. For example, the capacitance of the third capacitor can be 4.7 μF.

[0045] In some possible implementations, the first speaker assembly 11 may further include a fourth passive crossover (not shown in the figure). The output of the fourth passive crossover is connected to the first speaker 111, and the input of the fourth passive crossover is connected to the output of the first passive crossover 112. The fourth passive crossover is used to divide the first frequency audio signal into a fourth frequency audio signal, wherein the frequency corresponding to the fourth frequency audio signal is less than the frequency corresponding to the third frequency audio signal, and the frequency corresponding to the fourth frequency audio signal is greater than the frequency corresponding to the second frequency audio signal.

[0046] Among them, the fourth passive crossover can be a midrange crossover, and the fourth frequency audio signal can be a midrange audio signal.

[0047] The full-range audio signal output by the vehicle system 2 to the first speaker assembly 11 is first transmitted to the first passive crossover 112. The first passive crossover 112 divides the full-range audio signal into a first frequency audio signal, wherein the first frequency audio signal may include a mid-range audio signal and a high-range audio signal. That is, the first passive crossover 112 can block the low-range audio signal of the full-range audio signal, while allowing the mid-range audio signal and the high-range audio signal of the full-range audio signal to pass through.

[0048] During the transmission of the first frequency audio signal to the first speaker 111, it is first divided into a fourth frequency audio signal by a fourth passive crossover. That is, the fourth passive crossover can block the high-frequency audio signal in the first frequency audio signal, while allowing the mid-frequency audio signal in the first frequency audio signal to pass through. The fourth frequency audio signal is transmitted to the first speaker 111, so that the first speaker 111 only needs to emit mid-frequency sounds when it emits sound.

[0049] During the transmission of the first frequency audio signal to the third speaker 113, it is first divided into a third frequency audio signal by the third passive crossover 114. That is, the third passive crossover 114 can block the mid-range audio signal of the first frequency audio signal, while allowing the high-frequency audio signal of the first frequency audio signal to pass through. The third frequency audio signal is transmitted to the third speaker 113, so that the third speaker 113 only needs to emit high frequencies when it sounds.

[0050] Based on this, the first speaker 111 can emit only mid-range frequencies, the second speaker 121 can emit only bass frequencies, and the third speaker 113 can emit only treble frequencies, which can further improve the sound quality.

[0051] In some possible implementations, refer to Figure 1 The car audio system 1 may also include a first pair of plug-ins 13 and a second pair of plug-ins 14. The input terminal of the first pair of plug-ins 13 is used to connect to the vehicle head unit 2. The output terminal of the second pair of plug-ins 14 is connected to the input terminal of the second passive crossover 122. The second pair of plug-ins 14 is plugged into the first pair of plug-ins 13, so that the input terminal of the second pair of plug-ins 14 is connected to the output terminal of the first pair of plug-ins 13.

[0052] Among them, the first pair of plug-ins 13 can be connected to the audio output channel of the vehicle's infotainment system 2 through the vehicle wiring harness.

[0053] When the second pair of plug-ins 14 is plugged into the first pair of plug-ins 13, the input terminal of the second pair of plug-ins 14 is connected to the output terminal of the first pair of plug-ins 13. The full-range audio signal output by the vehicle system 2 is transmitted to the second passive crossover 122 through the first pair of plug-ins 13 and the second pair of plug-ins 14 in sequence. The second passive crossover 122 divides the full-range audio signal into a second frequency audio signal (i.e., a bass audio signal) and transmits it to the second speaker 121, so that the second speaker 121 only emits bass when it sounds.

[0054] When the second pair of plug-in 14 is separated from the first pair of plug-in 13, the second speaker assembly 12 can be separated from the vehicle unit 2.

[0055] By setting the first pair of plug-ins 13 and the second pair of plug-ins 14, the second speaker assembly 12 can be installed during the vehicle manufacturing process, or the second speaker assembly 12 can be added or modified after the vehicle leaves the factory, reducing the difficulty of later modification of the vehicle audio system 1.

[0056] In some possible implementations, refer to Figure 1 The input terminals of the first pair of plug-ins 13 can be connected to the vehicle infotainment system 2 via two cable harnesses.

[0057] The input terminals of the first pair of plug-ins 13 can be connected to the two independent audio output channels of the vehicle's infotainment system 2 via two cable harnesses.

[0058] The two wiring harnesses can each serve as branches of the two vehicle wiring harnesses corresponding to the two sets of first speaker components 11. When the first pair of plug-ins 13 and the second pair of plug-ins 14 are plugged in, the full-frequency audio signals output by the two independent audio output channels are transmitted not only to the corresponding first speaker component 11, but also to the second speaker component 12, while the full-frequency audio signals output by the other two independent audio output channels are transmitted only to the corresponding first speaker component 11.

[0059] Or, refer to Figure 4 The input terminals of the first pair of plug-ins 13 can be connected to the vehicle infotainment system 2 via a four-wire harness.

[0060] The input terminals of the first pair of plug-ins 13 can be connected to the four independent audio output channels of the vehicle's infotainment system 2 via a four-wire harness.

[0061] The four wiring harnesses can each serve as branches of the four vehicle wiring harnesses corresponding to the four sets of first speaker components 11. When the first pair of plug-ins 13 and the second pair of plug-ins 14 are plugged in, the full-frequency audio signals output by the four independent audio output channels are transmitted not only to the four first speaker components 11, but also to the second speaker components 12.

[0062] Of course, the input terminals of the first pair of plug-ins 13 can also be connected to the vehicle unit 2 via a single or three-wire harness, which will not be elaborated here.

[0063] In some possible implementations, refer to Figure 5 Alternatively, a multi-way crossover component 15 can be used to replace the first passive crossover 112 and the second passive crossover 122. The input terminal of the multi-way crossover component 15 is used to connect to the vehicle's infotainment system 2. Some of the output terminals of the multi-way crossover component 15 are connected to multiple first speakers 111, and the remaining output terminals are connected to the input terminals of the first pair of plug-in modules 13.

[0064] For example, the multi-channel crossover component 15 may include four input terminals and eight output terminals. The four output terminals are respectively connected to the four independent audio output channels of the vehicle infotainment system 2. The four output terminals are respectively connected to the four first speakers 111, and the other four output terminals are connected to the input terminals of the first pair of plug-ins 13.

[0065] In some possible implementations, refer to Figure 1 The second speaker assembly 12 also includes a first enclosure 123, which has a first cavity 1231. The second speaker 121 and the second passive crossover 122 are both installed in the first cavity 1231.

[0066] Installing the second speaker 121 inside the first cavity 1231 can protect the second speaker 121 and the second passive crossover 122, and can improve the sound quality.

[0067] In some possible implementations, there are two second speakers 121 and two second passive crossovers 122. The outputs of the two second passive crossovers 122 are respectively connected to the two second speakers 121, and the inputs of the two second passive crossovers 122 are both used to connect to the vehicle infotainment system 2.

[0068] The voice coil of the second speaker 121 can be a single voice coil.

[0069] The full-range audio signal output by the vehicle system 2 is transmitted to two second passive crossovers 122. Both second passive crossovers 122 divide the full-range audio signal into a second frequency audio signal (i.e., a bass audio signal). After the two second speakers 121 receive the second frequency audio signals output by the two second passive crossovers 122 respectively, they only need to emit bass when producing sound. Compared with a single bass speaker emitting bass, this can improve the bass quality.

[0070] In some possible implementations, there are two second speakers 121 and four second passive crossovers 122, wherein the outputs of two second passive crossovers 122 are connected to the same second speaker 121, the outputs of the other two second passive crossovers 122 are connected to another second speaker 121, and the inputs of all four second passive crossovers 122 are used to connect to the vehicle infotainment system 2.

[0071] The voice coil of the second speaker 121 can be a dual voice coil.

[0072] In some possible implementations, refer to Figure 1 The second speaker assembly 12 also includes a first phase inverter tube 124, which is installed inside the first cavity 1231, and one end of the first phase inverter tube 124 passes through the first housing 123.

[0073] Installing the first bass reflex port 124 inside the first enclosure 123 can enhance the low-frequency response, extend the low-frequency lower limit, and improve the bass effect.

[0074] In some possible implementations, refer to Figure 1 The second speaker assembly 12 also includes a second phase inverter tube 125, which is installed inside the first cavity 1231, and one end of the second phase inverter tube 125 passes through the first housing 123.

[0075] Adding a second bass reflex tube 125 inside the first enclosure 123, combined with the first bass reflex tube 124, can reduce noise, make the bass emitted by the second bass reflex component cleaner and clearer, and reduce bass distortion.

[0076] The cross-sections of the first phase inverter 124 and the second phase inverter 125 can be circular or rectangular, etc., and are not limited thereto. Taking the example that both the first phase inverter 124 and the second phase inverter 125 have circular cross-sections, the diameter of the cross-sections of the first phase inverter 124 and the second phase inverter 125 can be in the range of 30~60mm. For example, the diameter of the cross-sections of the first phase inverter 124 and the second phase inverter 125 can both be 45mm.

[0077] In some possible implementations, refer to Figure 1The first phase inverter 124 and the second phase inverter 125 respectively penetrate the two surfaces of the first housing 123.

[0078] The first box 123 can be a cuboid or a cube, etc., and is not limited here.

[0079] For example, the first phase inverter 124 and the second phase inverter 125 may pass through two opposite surfaces of the first housing 123, or the first phase inverter 124 and the second phase inverter 125 may pass through two connected surfaces of the first housing 123, without limitation.

[0080] The first bass reflex tube 124 and the second bass reflex tube 125 pass through two different surfaces of the first enclosure 123, which increases the distance between the opening of the first bass reflex tube 124 through the first enclosure 123 and the opening of the second bass reflex tube 125 through the first enclosure 123. This reduces the mutual interference between the bass emitted by the first bass reflex tube 124 through the opening of the first enclosure 123 and the bass emitted by the second bass reflex tube 125 through the opening of the first enclosure 123, resulting in a more comprehensive bass diffusion effect.

[0081] Of course, the first phase inverter 124 and the second phase inverter 125 can also penetrate the same surface of the first housing 123.

[0082] In some possible implementations, refer to Figure 2 The second speaker assembly 12 also includes a second enclosure 126. The second enclosure 126 is located inside the first enclosure 123 and is connected to the inner wall of the first enclosure 123. The second enclosure 126 has a second cavity 1261 that houses the second bass reflex port 125. Two opposite sidewalls of the second enclosure 126 each have through holes (not shown in the figure), both of which connect to the second cavity 1261. The edges of the two second speakers 121 respectively abut against the edges of the second enclosure 126 that form the two through holes.

[0083] The second box 126 can also be a cuboid or a cube, etc., and is not limited here.

[0084] Two through holes are provided on the two opposite side walls of the second enclosure 126. Both through holes can connect the first cavity 1231 and the second cavity 1261. However, since the edges of the two second speakers 121 are respectively attached to the edges of the two through holes formed by the second enclosure 126, the first cavity 1231 and the second cavity 1261 are separated.

[0085] It should be noted that the diaphragms of the two second loudspeakers 121 vibrate uniformly. For example, if the diaphragms of both second loudspeakers 121 vibrate towards the second cavity 1261 at the same time, then at this moment, the air pressure inside the second cavity 1261 is greater than the external air pressure, and airflow flows from the second cavity 1261 to the outside through the second bass reflex tube 125. Simultaneously, the air pressure inside the first cavity 1231 is less than the external air pressure, and airflow flows from the outside to the first cavity 1231 through the first bass reflex tube 124. Similarly, if the diaphragms of both second loudspeakers 121 vibrate towards the first cavity 1231 at the same time, then at this moment, the air pressure inside the first cavity 1231 is greater than the external air pressure, and airflow flows from the first cavity 1231 to the outside through the first bass reflex tube 124. Simultaneously, the air pressure inside the second cavity 1261 is less than the external air pressure, and airflow flows from the outside to the second cavity 1261 through the second bass reflex tube 125.

[0086] The above methods can enhance bass sound quality, making bass cleaner and clearer.

[0087] The volume ratio of the first container 123 to the second container 126 can be between 2:1 and 3:1, and the sum of the volumes of the first container 123 and the second container 126 can be between 8L and 16L. For example, in this embodiment, the sum of the volumes of the first container 123 and the second container 126 is 12L, and the volume ratio of the first container 123 to the second container 126 can be 2.5:1, that is, the volume of the first container 123 is 8.5L and the volume of the second container 126 is 3.5L.

[0088] In some possible implementations, refer to Figure 2 Both second speakers 121 are located in the first cavity 1231 and are arranged opposite each other.

[0089] In other words, the diaphragms of the two second speakers 121 are positioned opposite each other.

[0090] If there are two second passive crossovers 122, the positive terminals of both second passive crossovers 122 are connected to the positive terminals of the corresponding second speakers 121, and the negative terminals of both second passive crossovers 122 are connected to the negative terminals of the corresponding second speakers 121.

[0091] If there are four second passive crossovers 122, the positive terminals of two second passive crossovers 122 are connected to the positive terminal of the same second speaker 121, and the negative terminals of the two second passive crossovers 122 are connected to the negative terminal of the same second speaker 121. The positive terminals of the other two second passive crossovers 122 are connected to the positive terminal of another second speaker 121, and the negative terminals of the two second passive crossovers 122 are connected to the negative terminal of the same second speaker 121.

[0092] In some possible implementations, refer to Figure 6 The two second speakers 121 are located in the first cavity 1231 and the second cavity 1261 respectively, and the two second speakers 121 have the same orientation.

[0093] In other words, the diaphragms of the two second speakers 121 face the same direction.

[0094] If there are two second passive crossovers 122, the positive terminal of one second passive crossover 122 is connected to the positive terminal of one second speaker 121, and the negative terminal of the second passive crossover 122 is connected to the negative terminal of the second speaker 121; the positive terminal of the other second passive crossover 122 is connected to the negative terminal of the other second speaker 121, and the negative terminal of the other second passive crossover 122 is connected to the positive terminal of the second speaker 121.

[0095] If there are four second passive crossovers 122, the positive terminals of two second passive crossovers 122 are connected to the positive terminal of the same second speaker 121, and the negative terminals of the two second passive crossovers 122 are connected to the negative terminal of the same second speaker 121. The positive terminals of the other two second passive crossovers 122 are connected to the negative terminal of another second speaker 121, and the negative terminals of the two second passive crossovers 122 are connected to the positive terminal of the same second speaker 121.

[0096] This disclosure also provides a vehicle, which includes the vehicle audio system 1 and vehicle infotainment system 2 as described above.

[0097] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A vehicle audio system (1), characterized in that, The vehicle audio system (1) includes multiple first speaker components (11) and second speaker components (12). The first speaker assembly (11) includes a first loudspeaker (111) and a first passive crossover (112). The output of the first passive crossover (112) is connected to the first loudspeaker (111), and the input of the first passive crossover (112) is used to connect to the vehicle infotainment system (2). The first passive crossover (112) is used to divide the full-frequency audio signal output by the vehicle infotainment system (2) into a first frequency audio signal. The second speaker assembly (12) includes a second loudspeaker (121) and a second passive crossover (122). The output of the second passive crossover (122) is connected to the second loudspeaker (121), and the input of the second passive crossover (122) is used to connect to the vehicle infotainment system (2). The second passive crossover (122) is used to divide the full-frequency audio signal output by the vehicle infotainment system (2) into a second frequency audio signal, wherein the frequency corresponding to the second frequency audio signal is lower than the frequency corresponding to the first frequency audio signal.

2. The vehicle audio system (1) according to claim 1, characterized in that, The number of the first speaker components (11) is four.

3. The vehicle audio system (1) according to claim 1, characterized in that, The second speaker assembly (12) also includes a first enclosure (123), the first enclosure (123) having a first cavity (1231), the second speaker (121) and the second passive crossover (122) are both installed in the first cavity (1231).

4. The vehicle audio system (1) according to claim 3, characterized in that, The number of the second speaker (121) and the number of the second passive crossover (122) are both two. The output terminals of the two second passive crossovers (122) are respectively connected to the two second speakers (121), and the input terminals of the two second passive crossovers (122) are both used to connect to the vehicle system (2).

5. The vehicle audio system (1) according to claim 4, characterized in that, The second speaker assembly (12) also includes a first phase inverter tube (124), which is installed inside the first cavity (1231), and one end of the first phase inverter tube (124) passes through the first housing (123).

6. The vehicle audio system (1) according to claim 5, characterized in that, The second speaker assembly (12) also includes a second phase inverter (125), which is installed inside the first cavity (1231), and one end of the second phase inverter (125) passes through the first housing (123).

7. The vehicle audio system (1) according to claim 6, characterized in that, The first phase inverter (124) and the second phase inverter (125) respectively penetrate the two surfaces of the first housing (123).

8. The vehicle audio system (1) according to claim 7, characterized in that, The second speaker assembly (12) further includes a second enclosure (126), which is located inside the first enclosure (123) and connected to the inner wall of the first enclosure (123); the second enclosure (126) has a second cavity (1261) that accommodates the second phase inverter (125); two opposite side walls of the second enclosure (126) are provided with through holes, and both through holes are connected to the second cavity (1261). The frame edges of the two second speakers (121) are respectively attached to the edges of the two through holes formed by the second housing (126).

9. The vehicle audio system (1) according to claim 8, characterized in that, The two second speakers (121) are both located in the first cavity (1231) and are arranged opposite each other.

10. A vehicle, characterized in that, The vehicle includes the vehicle audio system (1) as described in any one of claims 1-9 and the vehicle infotainment system (2).

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