Loudspeaker and vehicle

Abstract

The utility model relates to the field of automobile sound systems, and discloses a loudspeaker and a vehicle, the loudspeaker comprises a box body and two loudspeaking units, the box body is provided with a main containing cavity located in the middle area and two inverter tube cavities located in the radial peripheral area of the main containing cavity, the inner ends of the two phase inversion tube cavities are communicated with the main containing cavity, the outer ends of the two phase inversion tube cavities are provided with phase inversion openings, the two ends of the box body in the axial direction form loudspeaker ends, and the two loudspeaker units are embedded in the two loudspeaker ends respectively. The sound device is integrated with the double loudspeaking units and adopts the design of the double inverter tubes, and when the sound device is applied to the vehicle, the definition and the dynamic range of sound in the vehicle can be improved, and the low-frequency response is improved.

Description

Technical Field

[0001] The present application belongs to the field of automotive audio systems, and in particular to speakers and vehicles. Background Art

[0002] With the continuous development of automobile technology, the performance and quality of car speakers are also constantly improving. As the core component of the car audio system, car speakers are required to have high-quality sound effects, waterproof and shockproof, and good compatibility, so as to provide drivers and passengers with a rich and diverse audio experience. The bass reflex speaker can utilize the resonance of the cabinet and the bass reflex tube to enhance the low-frequency effect without changing the sound pressure of the speaker. It is one of the new choices for car speakers. However, this type of speaker has very high requirements for the design of the cabinet. If it is not designed properly, it is easy to produce airflow sound at the pipe mouth, which will directly affect the sound quality. Utility Model Content

[0003] In response to at least one of the above-mentioned defects or shortcomings of the prior art, the present application provides a speaker and a vehicle. The speaker integrates dual speaker units and adopts a dual bass reflex tube design. When applied to a vehicle, it helps to improve the clarity and dynamic range of the sound inside the vehicle and improve the low-frequency response.

[0004] In order to achieve the above-mentioned purpose, the present application provides a speaker, which includes a box and two speaker units, the box is provided with a main cavity located in the middle area and two inverted tube cavities located in the radial peripheral area of ​​the main cavity, the inner ends of the two inverted tube cavities are connected to the main cavity and the outer ends are provided with inverted ports, the two ends of the box along the axial direction are formed as speaker ends, and the two speaker units are respectively embedded in the two speaker ends.

[0005] In some embodiments, the inverted tube cavity further includes a connecting cavity segment and an extended cavity segment, the main cavity, the connecting cavity segment and the extended cavity segment are connected in sequence, and the inverted port is opened at the outer end of the extended cavity segment.

[0006] In some embodiments, the outer cavity sections of the two inverted tube cavities are extended in opposite directions along the axial direction of the box body, and the inverted ports of the two inverted tube cavities are respectively located at the two speaker ends.

[0007] In some embodiments, the axial shell wall of the box body is concavely formed with a first annular partition groove, and the first annular partition groove is located between the main cavity and the extended cavity segment.

[0008] In some embodiments, the two inverted cavities extend from two radial sides of the main cavity respectively and extend around the main cavity in a radial peripheral area of ​​the main cavity.

[0009] In some embodiments, the two inversion cavities are arranged to extend in the same direction around the main cavity, and the inversion ports of the two inversion cavities open in opposite directions.

[0010] In some embodiments, the box body includes a second annular partition groove and a connecting rib plate, the second annular partition groove is located between the main cavity and the extended cavity segment, and the connecting rib plate connects the shell wall of the main cavity and the shell wall of the extended cavity segment.

[0011] In some embodiments, the cross-sectional area of ​​the inner end opening of the inversion lumen is not less than the cross-sectional area of ​​the inversion port.

[0012] In some embodiments, the box body is integrally formed by a blow molding process.

[0013] A second aspect of the present application provides a vehicle, comprising the above-mentioned speaker.

[0014] Through the above technical scheme, when the speaker of the present application is used in a vehicle, it can independently process high and low audio frequencies through two speaker units, thereby improving the clarity and dynamic range of the sound inside the vehicle. The key is that, through the resonance of the main cavity and the two inverted tube cavities, when the sound pressure of the two speaker units remains unchanged, the sound waves in the main cavity can be respectively exported to the outside through the two inverted tube cavities, thereby being superimposed with the sound waves emitted by the two speaker ends, thereby improving the overall low-frequency effect of the speaker and reducing low-frequency distortion.

[0015] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0017] Figure 1 A schematic diagram of a speaker in a specific implementation manner of the present application;

[0018] Figure 2 for Figure 1 A schematic cross-sectional view of a loudspeaker;

[0019] Figure 3 It is a schematic diagram of another loudspeaker in a specific implementation manner of the present application.

[0020] Description of Reference Numerals

[0021] 1 Box 2 Speaker unit

[0022] 101 main chamber 102 inverted chamber

[0023] 103 first annular partition groove 104 second annular partition groove

[0024] 105 Connecting rib plate 1021 Inverted phase port

[0025] 1022 connection cavity section 1023 extension cavity section DETAILED DESCRIPTION

[0026] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0027] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiments.

[0028] like Figures 1 to 3 As shown, the first exemplary embodiment of the present application provides a loudspeaker, which includes a cabinet 1 and two speaker units 2, wherein the cabinet 1 is provided with a main cavity 101 located in a central area and two inverted tube cavities 102 located in a radial peripheral area of ​​the main cavity 101, the inner ends of the two inverted tube cavities 102 are connected to the main cavity 101 and the outer ends are provided with inverted ports 1021, both ends of the cabinet 1 along the axial direction are formed as speaker ends, and the two speaker units 2 are respectively embedded in the two speaker ends.

[0029] Therefore, when the speaker of this exemplary embodiment is used, it can independently process high and low audio frequencies through the two speaker units 2, thereby improving the clarity and dynamic range of the sound. The key is that, through the resonance of the main cavity 101 and the two inverted tube cavities 102, when the sound pressure of the two speaker units 2 remains unchanged, the sound waves in the main cavity 101 can be respectively exported to the outside through the two inverted tube cavities 102, and superimposed with the sound waves emitted by the two speaker ends, thereby improving the overall low-frequency effect of the speaker and reducing low-frequency distortion.

[0030] It should be noted that the speaker unit of this embodiment is composed of a vibration system, a magnetic circuit system and a support system, and can be a mass-produced electric cone paper cone speaker unit, wherein the paper disk in the vibration system is the cone disk, which directly determines the performance of various aspects of the unit speaker, such as frequency response, distortion, sensitivity, etc. By providing the inverted tube cavity 102 and the inverted port 1021 formed on the box body 1, the compliance of the air in the box body 1 can be utilized to make the sound waves in the main volume 101 pass through the reflection effect of the inner wall of the box body 1 and be transmitted through the inverted port 1021, which helps to reduce the reflection and diffraction of the sound waves and improve the sensitivity of a certain low-frequency sound wave.

[0031] In one embodiment, referring to Figure 2 The inverted tube cavity 102 also includes a connecting cavity section 1022 and an extension cavity section 1023, wherein the two ends of the connecting cavity section 1022 are respectively connected to the main cavity 101 and the extension cavity section 1023, so that the main cavity 101, the connecting cavity section 1022 and the extension cavity section 1023 are connected in sequence to form a fluid channel with good air compliance to facilitate the transmission of sound waves. The above-mentioned inverted port 1021 is opened at the outer end of the extension cavity section 1023.

[0032] In one embodiment, referring to Figure 2 The outer cavity segments 1023 of the two inverted tube cavities 102 are extended in opposite directions along the axial direction of the box body 1, and the inverted ports 1021 of the two inverted tube cavities 102 are respectively located at the two speaker ends, so that the sound waves radiated from the inverted ports 1021 can be superimposed on the sound waves radiated from the speaker end in the same direction, bringing good low-frequency characteristics.

[0033] In this embodiment, the two connecting cavity sections 1022 are respectively arranged on both sides of the main cavity 101 along the axial direction, and the two extended cavity sections 1023 are respectively arranged perpendicular to the two connecting cavity sections 1022, so that the box body 1 is columnar as a whole, the structure is simpler and more stable, and it is suitable for installation in the vehicle.

[0034] In one embodiment, referring to Figure 1 The axial shell wall of the box body 1 is concave to form a first annular partition groove 103, and the first annular partition groove 103 is located between the main volume cavity 101 and the extension cavity segment 1023. In other words, an air layer is formed between the main volume cavity 101 and the extension cavity segment 1023, which separates the main volume cavity 101 from the extension cavity segment 1023, effectively avoiding the sound waves in the main volume cavity 101 and the sound waves in the extension cavity segment 1023 from interfering with each other, thereby improving the fidelity effect. In some other embodiments, the first annular partition groove 103 may not be provided, for example, the main volume cavity 101 and the extension cavity segment 1023 are separated only by the peripheral shell wall of the box body 1, and the present application does not limit this.

[0035] In one embodiment, referring to Figure 3 The two inverted tube chambers 102 extend from the radial sides of the main chamber 101 and extend around the main chamber 101 in the radial peripheral area of ​​the main chamber 101. Figure 1 Compared with the loudspeaker shown in the figure, the inverted tube cavity 102 of this embodiment can appropriately increase the length of the tube cavity and extend the transmission distance of the sound waves.

[0036] Further, refer to Figure 3The two inverted cavities 102 are arranged to extend in the same direction around the main cavity 101, and the inverted ports 1021 of the two inverted cavities 102 are opened in opposite directions, so that the two inverted cavities 102 can conduct the sound waves in the main cavity 101 in opposite directions, thereby increasing the dynamic range of the sound.

[0037] Of course, in some other embodiments, the two inverted cavities 102 may extend in opposite directions around the main cavity 101 so that the inverted ports 1021 of the two inverted cavities 102 open in the same direction to achieve the same-direction conduction and radiation of sound waves.

[0038] In one embodiment, referring to Figure 3 The housing 1 includes a second annular partition groove 104 and a connecting rib plate 105. The second annular partition groove 104 is located between the main cavity 101 and the extension cavity segment 1023. The connecting rib plate 105 connects the shell wall of the main cavity 101 and the shell wall of the extension cavity segment 1023. Similarly, in this embodiment, the second annular partition groove 104 can effectively separate the main cavity 101 from the extension cavity segment 1023, effectively avoiding the mutual interference of the sound waves in the main cavity 101 and the sound waves in the extension cavity segment 1023, and improving the fidelity effect. Considering that the length of the inverted tube cavity 102 in this embodiment is relatively long, by providing the connecting rib plate 105 between the shell wall of the main cavity 101 and the shell wall of the extension cavity segment 1023, the overall structural strength of the housing 1 can be improved.

[0039] In one embodiment, referring to Figure 3 The cross-sectional area of ​​the inner end opening of the inverted tube cavity 102 is not less than the cross-sectional area of ​​the inverted port 1021, thereby enabling more sound waves in the main cavity 101 to be introduced into the inverted tube cavity 102. At the same time, during the conduction process of the inverted tube cavity 102, the sound waves can be slightly compressed to enhance the texture of the low-frequency sound waves.

[0040] In one embodiment, the box body 1 is integrally formed by a blow molding process, thereby reducing the complexity of its molding. The integrally formed box body 1 has a high structural strength and there is no need to provide reinforcing ribs in the inverted tube cavity 102. Compared with the existing spliced ​​box body structure, it can effectively reduce the airflow sound generated during the sound wave conduction process, thereby ensuring that it has high-quality sound effects.

[0041] The second exemplary embodiment of the present application provides a vehicle, which includes the above-mentioned speaker. Obviously, the vehicle has all the technical effects brought by the above-mentioned speaker, so it will not be repeated here.

[0042] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations 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 any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A loudspeaker, characterized in that: The loudspeaker comprises a box (1) and two speaker units (2); the box (1) is provided with a main cavity (101) located in a central area and two inverted tube cavities (102) located in a radial peripheral area of ​​the main cavity (101); the inner ends of the two inverted tube cavities (102) are both connected to the main cavity (101) and the outer ends are both provided with inverted ports (1021); both ends of the box (1) along the axial direction are formed as speaker ends, and the two speaker units (2) are respectively embedded in the two speaker ends.

2. The loudspeaker according to claim 1, characterized in that The inverted tube cavity (102) further comprises a connecting cavity section (1022) and an extension cavity section (1023); the main chamber (101), the connecting cavity section (1022) and the extension cavity section (1023) are connected in sequence; and the inverted port (1021) is provided at the outer end of the extension cavity section (1023).

3. The loudspeaker according to claim 2, characterized in that The extended cavity sections (1023) of the two inverted tube cavities (102) are arranged to extend in opposite directions along the axial direction of the box body (1), and the inverted ports (1021) of the two inverted tube cavities (102) are respectively located at the two speaker ends.

4. The loudspeaker according to claim 3, characterized in that The axial shell wall of the box body (1) is concavely formed with a first annular partition groove (103), and the first annular partition groove (103) is located between the main volume cavity (101) and the extension cavity section (1023).

5. The loudspeaker according to claim 2, characterized in that The two inverted tube chambers (102) extend from two radial sides of the main chamber (101) respectively and are arranged to extend around the main chamber (101) in a radial peripheral area of ​​the main chamber (101).

6. The loudspeaker according to claim 5, characterized in that The two phase inversion tube cavities (102) are arranged to extend in the same direction around the main chamber (101), and the phase inversion ports (1021) of the two phase inversion tube cavities (102) open in opposite directions.

7. The loudspeaker according to claim 5, characterized in that The box body (1) comprises a second annular partition groove (104) and a connecting rib plate (105), wherein the second annular partition groove (104) is located between the main cavity (101) and the extended cavity segment (1023), and the connecting rib plate (105) connects the shell wall of the main cavity (101) and the shell wall of the extended cavity segment (1023).

8. The loudspeaker according to claim 1, characterized in that The cross-sectional area of ​​the inner end opening of the phase inversion tube cavity (102) is not less than the cross-sectional area of ​​the phase inversion port (1021).

9. The loudspeaker according to any one of claims 1 to 8, characterized in that: The box body (1) is integrally formed by a blow molding process.

10. A vehicle, characterized in that: The vehicle comprises a loudspeaker according to any one of claims 1 to 9.

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