Loudspeaker structure and vehicle-mounted sound equipment

Abstract

The utility model relates to the technical field of vehicle-mounted sound equipment, in particular to a loudspeaker structure and vehicle-mounted sound equipment. The resonant cavity tube is arranged in the shell assembly, and the resonant cavity tube is arranged in the direction of the central axis and is symmetrical about the central axis. Therefore, when the vibration part resonates with the resonant cavity tube, sound is refracted in the symmetrical resonant cavity tube, and finally the sound diffused by the diffusion part is pure in timbre and higher in timbre.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle-mounted audio, and in particular relates to a speaker structure and a vehicle-mounted audio. Technical Background

[0002] Car horns are indispensable electrical components of car safety systems. As a major part of a car, the development of car horns is closely related to the development of the automobile industry.

[0003] As the overall requirements of automobiles gradually increase, the market's requirements for car speakers are also increasing. The market's requirements for car speakers are not limited to simple sound production or volume adjustment, but require better sound quality.

[0004] In existing speaker technology, there is often a problem of poor sound quality. This is mainly due to unreasonable internal structure design, especially the setting of the resonance cavity. The existing speaker resonance cavity structure makes the asymmetric setting during resonance, which will cause the resonant tone to be impure, and thus the sound timbre effect does not meet the existing market demand. Utility Model Content

[0005] A vibration part and a resonance cavity are arranged inside the speaker, and the vibration part vibrates the resonance cavity to produce sound. The resonance cavity tube is arranged on the central axis and symmetrically arranged, so that when the entire resonance cavity tube vibrates, additional vibration and sound reflection are reduced, and the sound quality is purer; and after the sound resonates, it is diffused through a diffusion part arranged on the same axis to reduce sound loss.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] In a first aspect, the utility model provides a speaker structure, comprising:

[0008] A vibration assembly includes a circuit board and a vibration part arranged on the circuit board; and

[0009] The housing component comprises a resonance cavity tube, a through groove is arranged on the surface of the resonance cavity tube, and at least one diffusion part is arranged on the outer surface of the housing component, and the diffusion part is communicated with the resonance cavity tube; the circuit board is arranged on the surface of the housing component, and the vibration part extends from the through groove to the inside of the resonance cavity tube, so as to vibrate through the vibration part and make the resonance inside the resonance cavity tube resonate and diffuse from the diffusion part after the sound is repaired;

[0010] The resonance cavity tube is arranged along the central axis of the shell component and forms a sound-conducting channel on the central axis, and the sound-conducting channel is arranged in the same straight line as the diffusion part.

[0011] The vibration component generates sound through vibration. A resonance cavity is provided inside the shell component, a circuit board is provided on the surface of the resonance cavity, and the vibration part on the circuit board extends to the inside of the resonance cavity through a through groove. The tone is amplified and modified through the resonance inside the resonance cavity, and diffused to the outside through the diffusion part of the sound-conducting channel; the resonance cavity is provided on the central axis of the shell component and is symmetrical along the central axis; the sound loss of the sound generation can be reduced through the symmetrical resonance cavity and the diffusion part provided on the same central axis.

[0012] In some embodiments, the resonant cavity tube is cylindrical.

[0013] The cylindrical shape can further enhance the symmetry of the resonance cavity, making the tone purer. At the same time, the cylindrical resonance cavity can reduce the refraction of edges and corners, further making the tone purer.

[0014] In some embodiments, the diffusion portion includes a diffusion slot and a diffusion piece; the diffusion slot is arranged on the shell assembly, and the diffusion piece is clamped at the end of the diffusion slot away from the resonance cavity tube, or the diffusion piece is arranged at the end of the diffusion slot away from the resonance cavity and is integrally formed with the diffusion slot.

[0015] The diffusion part is provided with a diffusion groove, which can realize the convergence of sound, increase the diffusion degree of sound in the direction facing the diffusion groove, and thus increase the diffusion range of sound; a diffuser is provided at the diffusion groove away from the resonance cavity tube, and the diffuser can be set as a blade diffuser, a honeycomb diffuser, a prism diffuser, a random diffuser, or a multi-layer diffuser; thereby further diffusing the sound.

[0016] In some embodiments, the housing assembly includes a first shell and a second shell; the first shell covers the second shell.

[0017] The first shell is arranged on one side of the second shell so that a closed space is formed inside. The second shell can be arranged as a structure combining a rectangle and circular arcs on both sides, so that the resonance cavity tube arranged on the central axis is away from the inner wall of the second shell, so that a certain distance is arranged between the resonance cavity tube and the second shell.

[0018] In some embodiments, the second shell includes a fixing seat, which is arranged around the first shell and has fixing grooves at both ends; the first shell and the circuit board surface are provided with fixing holes so that the first shell and the circuit board can be fixed on the fixing grooves through the fixing holes.

[0019] The fixing seat is used to fix the circuit board and the first shell, and the first shell and the circuit board are fixed on the fixing seat in sequence.

[0020] In some embodiments, the second shell is provided with a snap-fitting groove so that the second shell can be snap-fitted and fixed.

[0021] There is one or more snap-in slots, and the shape and quantity can be set according to the components connected to the first shell and the outside.

[0022] In some embodiments, at least one through hole is disposed on the first shell.

[0023] A through hole is arranged on the surface of the first shell, and the through hole enables a part of the components on the circuit board assembly to extend outside the first shell.

[0024] In some embodiments, the circuit board further includes at least one contact spring block; the contact spring block extends out of the first housing through the through hole.

[0025] By setting the contact spring block, during installation, the contact spring block contracts to install the entire speaker structure. At the same time, the part of the contact spring block extending out of the first shell can be used as a conductive part. The contact block is clamped with the conductive part to make the entire speaker energized. The clamping reduces the complexity of installation.

[0026] In some embodiments, sound insulation cotton is provided around the vibration part of the circuit board.

[0027] Sound insulation cotton can be arranged around the circuit board, and is arranged between the circuit board and the resonance cavity. The sound insulation cotton can not only prevent the sound from being transmitted from the resonance cavity, but also form a shock-absorbing effect between the vibration part and the vibration plate, thereby preventing the vibration of the vibration part from causing damage to the circuit board.

[0028] In the second aspect, the utility model provides a car audio system, wherein the car speaker structure is connected to the car audio system through a card slot and a spring piece of the car audio system, the car audio system is electrically connected to the car speaker structure, the car audio system transmits a sound signal to a circuit board assembly, and controls the vibration part to vibrate and produce sound.

[0029] The vehicle-mounted horn is connected to the audio system through a spring clip, and is connected to the horn structure through the vehicle-mounted electrical properties. The vehicle-mounted horn is connected and controlled through the vehicle-mounted chip battery, and the sound is generated by transmitting the control signal to the vibration part on the circuit board assembly.

[0030] The utility model provides a speaker structure and a car audio system, which have the following effects:

[0031] By arranging a resonance cavity tube in the housing component, and arranging the resonance cavity tube along the central axis direction, and symmetrical about the central axis, when the vibration part resonates with the resonance cavity tube, the sound is refracted inside the symmetrical resonance cavity tube, and the sound diffused by the diffusion part finally has a pure timbre and higher sound quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is an exploded view of an embodiment of the present invention.

[0033] Figure 2 This is a top view of the interior of the housing assembly of an embodiment of the utility model.

[0034] Figure 3 It is a cross-sectional view of an embodiment of the utility model.

[0035] Figure 4 This is a bottom view of a circuit board according to an embodiment of the present utility model.

[0036] Figure 5 It is a bottom view of an embodiment of the utility model.

[0037] Reference numerals

[0038] 100, vibration component; 110, circuit board; 120, vibration part; 130, contact spring block;

[0039] 200, housing assembly; 210, diffusion portion; 211, diffusion slot; 212, diffusion member; 220, first housing; 230, second housing; 231, snap-in slot;

[0040] 300, resonance cavity tube; 310, sound guide channel; 320, through groove; DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present invention and should not be regarded as an improper limitation on the present invention.

[0042] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the specific technical solution of the utility model will be further described in detail below in conjunction with the drawings in the embodiment of the utility model. The following embodiments are used to illustrate the utility model, but are not used to limit the scope of the utility model.

[0043] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, unless otherwise specified, the meaning of "multiple" is two or more.

[0044] In addition, in the embodiments of the present invention, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0045] In the embodiments of the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0046] In the embodiments of the present invention, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0047] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present the related in a specific way.

[0048] Embodiment 1:

[0049] like Figure 1 As shown, the utility model provides a speaker structure, including:

[0050] The vibration assembly 100 includes a circuit board 110 and a vibration part 120 disposed on the circuit board 110; and

[0051] The housing component 200 has a resonance cavity tube 300, a through groove 320 is provided on the surface of the resonance cavity tube 300, and at least one diffusion part 210 is provided on the outer surface of the housing component 200, and the diffusion part 210 is connected with the resonance cavity tube 300; the circuit board 110 is arranged on the surface of the housing component 200, and the vibration part 120 extends from the through groove 320 to the inside of the resonance cavity tube 300, so as to vibrate through the vibration part 120 and make the resonance cavity tube 300 resonate and diffuse from the diffusion part 210 after the sound is repaired;

[0052] The resonance cavity tube 300 is disposed along the central axis of the housing assembly 200 and forms a sound guide channel 310 on the central axis. The sound guide channel 310 is disposed in the same straight line as the diffuser 210 .

[0053] Specifically, the vibration component 100 is arranged on the circuit board 110, wherein the vibration part 120 is used to resonate with the resonance cavity tube 300 to produce sound, and the vibration part 120 is fixed on the circuit board 110, and the vibration of the vibration part 120 on the circuit board 110 is controlled by an external control terminal, and the vibration of the vibration part 120 resonates with the resonance cavity, thereby producing sound; a resonance cavity tube 300 is arranged in the shell component 200, and the resonance cavity tube 300 is arranged on the longest axis inside the shell component 200, and the axis is the central axis of the shell component 200. Through the axis, the shell component 200 and the resonance cavity tube 300 are symmetrically arranged, and a sound guide channel 310 is formed inside the resonance cavity tube 300, and one end of the sound guide channel 310 is in the same straight line and connected with the diffuser 210.

[0054] Furthermore, in order to further improve the timbre, the inner diameter of the resonance cavity tube 300 may be set according to the required timbre range. By changing the inner diameter, when the resonance cavity tube 300 resonates, it resonates with the vibration part 120, thereby making the timbre purer.

[0055] Furthermore, since the vibration part 120 is arranged on the circuit board 110, in order to prevent the vibration from affecting the circuit board 110, a shock-proof pad is arranged between the speakers of the vibration part 120 to further prevent shock. The circuit board 110 is connected to the circuit board 110 through an external plug-in cable, and the shock-proof effect of the circuit board 110 is further improved. When the circuit board 110 is produced, shock-proof materials are used. When selecting devices, high-precision and high-sensitivity components are selected. When in use, shock-proof packaging can also be used to further improve the shock-proof effect of the circuit board 110.

[0056] The vibration component 100 generates sound through vibration. A resonance cavity tube 300 is arranged inside the shell component 200, and the circuit board 110 is arranged on the surface of the resonance cavity tube 300. The vibration part 120 on the circuit board 110 extends to the inside of the resonance cavity tube 300 through the through groove 320. The timbre is amplified and modified by the resonance inside the resonance cavity tube 300, and diffused to the outside through the sound guide channel 310 and the diffusion part 210; the resonance cavity tube 300 is arranged on the central axis of the shell component 200 and is symmetrical along the central axis; the sound loss of the sound generation can be reduced by the symmetrical resonance cavity tube 300 and the diffusion part 210 arranged on the same central axis.

[0057] Embodiment 2:

[0058] Based on Example 1, Figure 2 to Figure 5 As shown, this embodiment further illustrates and limits the components in Embodiment 1.

[0059] In some embodiments, the resonant cavity tube 300 is cylindrical.

[0060] The resonance cavity tube 300 is usually cylindrical in shape. When vibrating and producing sound, the cylindrical cavity reflects the sound because there are no edges and corners. When the sound waves propagate in the resonance cavity tube 300, they can be better dispersed, reducing the focus of the sound, thereby reducing the resonance frequency and making the timbre richer. In addition, since there are no edges and corners and mutations, the reflection and interference of the sound are reduced during the propagation of the sound waves, and the purity of the sound is higher.

[0061] The cylindrical shape can further enhance the symmetry of the resonance cavity tube 300 , making the tone purer. At the same time, the cylindrical resonance cavity tube 300 can reduce the refraction of edges and corners, further making the tone purer.

[0062] In some embodiments, the diffuser 210 includes a diffuser slot 211 and a diffuser 212; the diffuser slot 211 is disposed on the housing assembly 200, and the diffuser 212 is clamped at an end of the diffuser slot 211 away from the resonance cavity tube 300, or the diffuser 212 is disposed at an end of the diffuser slot 211 away from the resonance cavity and is integrally formed with the diffuser slot 211.

[0063] Specifically, the diffuser 210 is arranged at the mouth of the sound guiding channel 310. In order to make the sound propagation range wider, a diffusion groove 211 is also arranged at the diffuser 210. The diffusion groove 211 enables the sound waves to be transmitted farther and over a wider range in the propagation direction it faces, and a diffuser 212 is arranged at the outer groove of the diffusion groove 211. In this embodiment, a blade diffuser is used as the diffuser 212, so that the diffuser 212 can diffuse sound waves in a wider frequency range, and its directivity is stronger, and it is easier to amplify the sound in a specific direction.

[0064] The diffusion portion 210 is provided with a diffusion groove 211, which can realize the convergence of sound, increase the diffusion degree of sound in the direction facing the diffusion groove 211, and thus increase the diffusion range of sound; a diffuser 212 is provided at the diffusion groove 211 away from the resonance cavity tube 300, and the diffuser 212 can be set as a blade diffuser, a honeycomb diffuser, a prism diffuser, a random diffuser, or a multi-layer diffuser; thereby further diffusing the sound.

[0065] In some embodiments, the housing assembly 200 includes a first shell 220 and a second shell 230 ; the first shell 220 covers the second shell 230 .

[0066] Specifically, the first housing 220 and the second housing 230 are combined to form an internal sealed space, which further improves the airtightness of the vibration and prevents energy leakage when the vibration part 120 vibrates, resulting in poor sound quality. In this embodiment, the first housing 220 is detachable, so that when a problem occurs with the device, the first housing 220 can be disassembled for repair.

[0067] The first shell 220 is arranged on one side of the second shell 230, so that a closed space is formed inside. The second shell 230 can be set to a structure combining a rectangle and circular arcs on both sides, so that the resonance cavity tube 300 arranged on the central axis is away from the inner wall of the second shell 230, so that a certain distance is set between the resonance cavity tube 300 and the second shell 230.

[0068] In some embodiments, the second shell 230 includes a fixing seat, which is arranged around the first shell 220 and has fixing grooves at both ends of the fixing seat; the first shell 220 and the circuit board 110 are provided with fixing holes on the surface so that the first shell 220 and the circuit board 110 are fixed on the fixing grooves through the fixing holes.

[0069] Specifically, in the present embodiment, four fixing seats are provided, and four fixing seat rings are provided in the outer shell assembly 200. The first shell 220 is a structure with arc surfaces on both sides and connected by a connecting plate in the middle. The four fixing seats are all provided at the position where the arc surface is connected to the connecting plate, and the fixing seats are provided in an arc shape to prevent the generation of edges and corners and increase additional sound wave reflections.

[0070] The fixing seat is used to fix the circuit board 110 and the first shell 220 . The first shell 220 and the circuit board 110 are fixed on the fixing seat in sequence.

[0071] In some embodiments, the second housing 230 is provided with a snap-fitting groove 231 so that the second housing 230 can be snap-fitted and fixed.

[0072] Specifically, the clamping groove 231 is arranged on the outside of the first shell 220. According to the vehicle model to be installed, the clamping groove 231 is provided with three elliptical installation grooves to correspond to the parts of the vehicle to be clamped and installed.

[0073] There is one or more clamping grooves 231 , and the shape and quantity can be set according to the components connected between the first housing 220 and the outside.

[0074] In some embodiments, at least one through hole is disposed on the first housing 220 .

[0075] The first shell 220 is provided with two through holes for the spring piece to extend out of the first shell 220 .

[0076] A through hole is disposed on the surface of the first housing 220 , and the through hole allows a portion of the components on the circuit board 110 to extend outside the first housing 220 .

[0077] In some embodiments, the circuit board 110 further includes at least one contact spring block 130 ; the contact spring block 130 extends out of the first housing 220 through the through hole.

[0078] Specifically, two contact spring blocks 130 are provided, and the fixing parts of the two contact spring blocks 130 are fixed on the circuit board 110, and extend from the through hole of the first shell 220 to the outside of the first shell 220. The contact spring blocks 130 extending out of the first shell 220 can be squeezed and contracted during installation. When the entire speaker structure is placed on the mounting seat, the spring piece pops out and snaps into the mounting part, and cooperates with the mounting groove at the bottom of the second shell 230, so that the speaker structure does not require a complicated installation method. In this embodiment, the contact spring block 130 is made of metal. During installation, the on-state potential of the mounting position can be snapped into place without additional wiring, so that the speaker structure is automatically snapped into place.

[0079] By setting the contact spring block 130, during installation, the contact spring block 130 contracts to install the entire speaker structure. At the same time, the portion of the contact spring block 130 extending out of the first shell 220 can be used as a conductive part. By snapping the contact block and the conductive part together, the entire speaker is powered on, and the complexity of installation is reduced by snapping.

[0080] In some embodiments, sound insulation cotton is disposed around the vibration part 120 of the circuit board 110 .

[0081] The vibration part 120 further includes a vibration membrane, which is attached to the surface of the vibration cavity tube, so that when the vibration membrane vibrates, the vibration cavity tube resonates with it and produces sound.

[0082] Sound insulation cotton may be arranged around the circuit board 110 and between the circuit board 110 and the resonance cavity. The sound insulation cotton can not only prevent the sound from being transmitted from the resonance cavity, but also form a shock absorbing effect between the vibration part 120 and the vibration plate, thereby preventing the vibration of the vibration part 120 from causing damage to the circuit board 110.

[0083] Embodiment 3:

[0084] Based on Example 1, please refer to Figure 1 This embodiment further illustrates a usage scenario of a speaker structure of Embodiment 1.

[0085] The vehicle speaker structure is connected to the vehicle audio through the snap-in slot 231 and the spring of the vehicle audio. The vehicle audio is electrically connected to the vehicle speaker structure, and the sound signal is transmitted to the circuit board 110 component, and the vibration part 120 is controlled to vibrate and make sound.

[0086] Specifically, the volume of the speaker output and the transmission of speed measurement data are controlled by assembling the PCB board with the circuit board 110 of the speaker control box. According to the noise level of the environment and the driving speed of the car, the on-board chip transmits the obtained data to the circuit board 110, and the circuit board 110 issues and executes the instructions. The circuit board 110 transmits the audio signal to the diaphragm. When the electrical signal is input to the diaphragm, the diaphragm begins to vibrate. The vibration of the diaphragm is transmitted through the structure of the resonance cavity, and a resonance effect is formed in the resonance cavity, thereby enhancing the vibration effect. Resonance occurs in the resonance tube, converting mechanical energy into sound energy, and diffusing the sound through the diffuser.

[0087] The vehicle speaker is connected to the audio system through a spring clip, and is connected to the speaker structure through vehicle electrical properties. The vehicle speaker is connected and controlled through a vehicle chip battery, and the control signal is transmitted to the vibration part 120 on the circuit board 110 component to produce sound.

[0088] The serial numbers of the utility model embodiments are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the utility model, and do not limit the patent scope of the utility model. Any equivalent device or equivalent process transformation made by using the contents of the utility model specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the utility model.

Claims

1. A speaker structure, characterized in that: include: A vibration component (100) comprises a circuit board (110) and a vibration part (120) arranged on the circuit board (110); as well as A housing component (200), the housing component (200) comprising a resonance cavity tube (300), the surface of the resonance cavity tube (300) being provided with a through groove (320), the outer surface of the housing component (200) being provided with at least one diffusion portion (210), the diffusion portion (210) being in communication with the resonance cavity tube (300); the circuit board (110) being arranged on the surface of the housing component (200), the vibration portion (120) extending from the through groove (320) to the inside of the resonance cavity tube (300), so as to vibrate through the vibration portion (120) and cause the resonance inside the resonance cavity tube (300) to diffuse from the diffusion portion (210) after the sound is adjusted; The resonance cavity tube (300) is arranged along the central axis of the housing component (200) and forms a sound guide channel (310) on the central axis. The sound guide channel (310) is arranged in the same straight line as the diffusion portion (210).

2. The speaker structure according to claim 1, characterized in that: The resonance cavity tube (300) is cylindrical.

3. The speaker structure according to claim 1, characterized in that: The diffusion portion (210) comprises a diffusion slot (211) and a diffusion member (212); the diffusion slot (211) is arranged on the housing assembly (200), and the diffusion member (212) is snap-connected to an end of the diffusion slot (211) away from the resonance cavity tube (300); or the diffusion member (212) is arranged at an end of the diffusion slot (211) away from the resonance cavity and is integrally formed with the diffusion slot (320).

4. The speaker structure according to claim 1, characterized in that: The housing assembly (200) comprises a first shell (220) and a second shell (230); the first shell (220) covers the second shell (230).

5. The speaker structure according to claim 4, characterized in that: The second housing (230) comprises a fixing seat, which is arranged around the first housing (220), and fixing grooves are arranged at both ends of the fixing seat; the surfaces of the first housing (220) and the circuit board (110) are provided with fixing holes, so that the first housing (220) and the circuit board (110) are fixed to the fixing grooves through the fixing holes.

6. The speaker structure according to claim 4, characterized in that: The second shell (230) is provided with a snap-fitting groove (231) so that the second shell (230) can be snap-fitted and fixed.

7. The speaker structure according to claim 4, characterized in that: At least one through hole is provided on the first shell (220).

8. The speaker structure according to claim 7, characterized in that: The circuit board (110) further comprises at least one contact spring block (130); the contact spring block (130) extends out of the first housing (220) from the through hole.

9. The speaker structure according to claim 1, characterized in that: Sound insulation cotton is arranged around the vibration part (120) of the circuit board (110).

10. A car audio system, characterized in that: It comprises the speaker structure described in any one of claims 1 to 9; the speaker structure is connected to the vehicle audio system through the snap-in groove (231) and the spring clip of the vehicle audio system, the vehicle audio system is electrically connected to the speaker structure, the vehicle audio system transmits the sound signal to the circuit board (110) component, and controls the vibration part (120) to vibrate and produce sound.

Images