Power-source-free loudspeaker and sound box

Abstract

The utility model relates to the technical field of loudspeakers, in particular to a power-source-free loudspeaker and a sound box. The power-source-free loudspeaker comprises a shell, drum paper and an air guide cylinder. A cavity is formed in the shell, a first opening communicated with the cavity is formed in one side of the shell, a second opening communicated with the cavity is formed in the other side, opposite to the first opening, of the shell, and the drum paper is arranged at the first opening; one end of the air duct is arranged at the second opening to be communicated with the cavity, and the other end of the air duct extends in the direction away from the drum paper; the air guide cylinder has an expansion trend in the direction of the air guide cylinder far away from the drum paper, so that air flow generated when the loudspeaker with the power source produces sound can be guided into the cavity by the air guide cylinder and finally acts on the drum paper to enable the drum paper to vibrate and produce sound, and compared with an existing technical scheme that the drum paper is arranged in the sound box body in an open manner, the sound box has the advantages that the sound production efficiency is improved; the power-source-free loudspeaker can guide air flow to act on the cone paper more uniformly, thereby reducing distortion of the power-source-free loudspeaker and improving sound quality of the power-source-free loudspeaker.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker without a power source and a sound box. Background Art

[0002] Speakers are an indispensable component of a speaker. Previous speakers were all powered speakers. The voice coil and magnet work together to form the power source of this type of speaker. When powered on, the voice coil will drive the elastic wave and drum paper to vibrate and make sound.

[0003] In order to improve the sound quality of the speaker, a speaker that combines an unpowered speaker with a powered speaker has appeared on the market. The unpowered speaker includes a drum paper set on the speaker cabinet. When the powered speaker makes a sound, it will vibrate, causing airflow inside the speaker. After the power of the airflow is transmitted to the drum paper of the unpowered speaker, the drum paper will vibrate and make sound. Therefore, the unpowered speaker itself does not need to be equipped with a power source.

[0004] The problem with the existing technology is that the airflow generated by the powered speaker when producing sound cannot act evenly on the drum paper, which causes distortion, resulting in poor sound quality of the unpowered speaker. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the present invention is to provide a speaker without a power source to solve the problem in the prior art that it is inconvenient to unfold the legs.

[0006] In the first aspect, an embodiment of the utility model provides a power-free speaker, comprising: a shell, wherein the shell has a chamber inside, a first opening connected to the chamber is provided on one side of the shell, and a second opening connected to the chamber is provided on the other side of the shell opposite to the first opening; a drum paper, which is installed at the first opening; an air guide tube, one end of which is installed at the second opening to be connected to the chamber, and the other end extends in a direction away from the drum paper, and the air guide tube has an expansion tendency in the direction in which the air guide tube moves away from the drum paper.

[0007] Optionally, in the direction in which the air guide tube moves away from the drum paper, the expansion tendency of the air guide tube gradually increases.

[0008] Optionally, in the direction from the air guide tube toward the drum paper, the inner contour of the shell has an expansion tendency.

[0009] Optionally, a mounting ring seat is provided on the outer side of the air guide tube near one end of the drum paper, and a plurality of first mounting holes are provided on the mounting ring seat, and the plurality of first mounting holes are evenly arranged on the circumference of the air guide tube; a plurality of second mounting holes are provided on the shell body around the second opening; the unpowered speaker also includes a plurality of first screws, and the plurality of first screws cooperate with the plurality of first mounting holes and the plurality of second mounting holes to install the air guide tube at the second opening.

[0010] Optionally, the air guide tube is a plastic air guide tube.

[0011] Optionally, the shell includes a mounting ear, which is protruding from an edge of the shell on one side of the first opening, and a third mounting hole for a second screw to pass through is provided on the mounting ear.

[0012] Optionally, the third mounting hole is a waist-shaped hole.

[0013] In a second aspect, an embodiment of the present invention further provides a speaker, which includes a box body, an unpowered source speaker mounted on the box body, and a powered source speaker; wherein the unpowered source speaker is the unpowered source speaker shown in the first aspect above.

[0014] Optionally, the box includes a first side wall and a second side wall that are arranged opposite to each other, the powered speaker is installed on the first side wall, and the unpowered speaker is installed on the second side wall.

[0015] Optionally, the box also includes a bottom wall adjacent to the first side wall and the second side wall, and the unpowered speaker is installed on the second side wall at a position away from the bottom wall; the second side wall gradually tilts toward the first side wall from the side close to the bottom wall, so that the end of the air guide tube of the unpowered speaker close to the first side wall is in the central area of the box.

[0016] Compared with the prior art, the beneficial effect of the unpowered speaker provided by the embodiment of the present invention is that: the unpowered speaker provided by the embodiment of the present invention includes a shell, a drum paper and an air guide tube; the shell has a chamber inside, and one side of the shell is provided with a first opening connected to the chamber, and the other side of the shell opposite to the first opening is provided with a second opening connected to the chamber, and the drum paper is installed at the first opening; one end of the air guide tube is installed at the second opening to be connected to the chamber, and the other end extends in the direction away from the drum paper; specifically, in the direction of the air guide tube away from the drum paper, the air guide tube has an expansion tendency, and this expansion tendency makes the airflow generated by the powered speaker when making sound be guided into the chamber by the air guide tube, and the airflow flowing into the chamber eventually acts on the drum paper, causing the drum paper to vibrate and make sound. Compared with the prior art solution in which the drum paper is openly arranged in the speaker box, the unpowered speaker of the embodiment of the present invention can guide the airflow to act on the drum paper more evenly, reduce the distortion of the unpowered speaker, and improve the sound quality of the unpowered speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0018] Figure 1 This is a three-dimensional schematic diagram of a speaker without a power source provided by an embodiment of the present utility model;

[0019] Figure 2 It is a three-dimensional schematic diagram of a housing provided by an embodiment of the present utility model;

[0020] Figure 3 yes Figure 1 a cutaway view of the unpowered loudspeaker shown;

[0021] Figure 4 This is a three-dimensional schematic diagram of a speaker provided by an embodiment of the present utility model;

[0022] Figure 5 for Figure 4 A three-dimensional schematic diagram of the speaker from another angle;

[0023] Figure 6 yes Figure 4 The stereoscopic diagram of the speaker shown is with part of the cabinet omitted;

[0024] Figure 7 This is a three-dimensional schematic diagram of an air guide tube provided by an embodiment of the utility model;

[0025] Figure 8 It is a cross-sectional view of an air guide tube provided by another embodiment of the present utility model.

[0026] The reference numerals in the figures are:

[0027] 1000, speakers;

[0028] 100, unpowered speaker; 10, housing; 101, chamber; 102, first opening; 103, second opening; 104, mounting ears; 1041, third mounting hole; 11, drum paper; 12, air duct; 121, mounting ring seat;

[0029] 200, box body; 210, first side wall; 220, second side wall; 230, bottom wall; 240, top wall; 241, handle; 2411, handle opening;

[0030] 300. Power source speakers. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. Now, in conjunction with the accompanying drawings, a detailed description of the preferred embodiments of the present utility model will be given.

[0032] The present invention provides a speaker 100 without a power source. Figures 1-6 As shown, the unpowered speaker 100 includes a housing 10, a drum paper 11, and an air duct 12. The housing 10 has a chamber 101 inside. One side of the housing 10 is connected to a first opening 102 communicating with the chamber 101. The other side of the housing 10 opposite to the first opening 102 is provided with a second opening 103, which is connected to the chamber 101. The drum paper 11 is installed at the first opening 102. One end of the air duct 12 is installed at the opening to communicate with the chamber 101, and the other end extends in a direction away from the drum paper 11. In the direction of the air duct 12 away from the drum paper 11 ( Figure 3 In the X direction), the air guide tube 12 has an expansion trend.

[0033] Specifically, since the air duct 12 has an expansion tendency in the direction away from the drum paper 11, the air duct 12 has the technical effect of guiding and concentrating the airflow into the chamber 101. When the powered speaker 300 makes a sound, the airflow generated inside the speaker box 1000 200 will be guided into the chamber 101 by the air duct 12. The airflow flowing into the chamber 101 eventually acts on the drum paper 11, causing the drum paper 11 to vibrate and make a sound.

[0034] Compared to the existing technical solution in which the drum paper 11 is openly arranged in the speaker box 1000 body 200, the unpowered source speaker 100 of this embodiment can guide the airflow to act more evenly on the drum paper 11. Therefore, the implementation of this embodiment can reduce the distortion of the unpowered source speaker 100, improve the sound quality of the unpowered source speaker 100, and provide users with a better user experience.

[0035] refer to Figure 3In a specific embodiment, the expansion of the air guide 12 gradually increases as it moves away from the drum paper 11. This arrangement creates an arc-shaped inner wall at the expanded portion of the air guide 12. This arc-shaped inner wall can better guide airflow, making it flow more evenly while reducing turbulence and resistance. This minimizes energy loss and increases the force acting on the drum paper 11, allowing the drum paper 11 to vibrate and produce sound more effectively, thereby improving the sound quality of the unpowered speaker 100.

[0036] It is worth mentioning that Figure 8 As shown, the expansion trend of the air duct 12 can remain constant as it moves away from the drum paper 11. This arrangement creates a straight line inside the expanded portion of the air duct 12, which also achieves the technical effect of guiding and concentrating airflow. However, this effectiveness is inferior to that of a curved solution. Therefore, a preferred embodiment is one in which the expansion trend of the air duct 12 gradually increases as it moves away from the drum paper 11.

[0037] refer to Figure 3 In some embodiments, the air guide tube 12 is directed toward the drum paper 11 ( Figure 3 In the Y direction (in the Y direction), the inner contour of the housing 10 has an expanding tendency. With this arrangement, after the airflow passes through the air guide duct 12 and enters the chamber 101, it is guided by the housing 10 and gradually diffuses, ultimately evenly affecting the drum paper 11. Compared to a technical solution in which the inner contour of the housing 10 remains unchanged, the housing 10 of this embodiment guides the diffusion of the airflow, making the airflow more uniform, thereby ensuring a more even effect on the drum paper 11.

[0038] In some embodiments, the air guide tube 12 is installed at the second opening 103 via a first screw.

[0039] Specifically, the first screw connection is a connection method that can stably connect two objects, and the first screw will not loosen over time. Therefore, the air duct 12 in this embodiment is installed at the second opening 103 by the first screw. In other specific embodiments, the air duct 12 can also be installed at the second opening 103 by bonding or welding.

[0040] refer to Figure 3 、 Figure 7In this embodiment, a mounting ring 121 is provided on the outer side of the air duct 12 near one end of the drum paper 11. The mounting ring 121 is provided with a plurality of first mounting holes (not shown in the figure). The plurality of first mounting holes are evenly distributed around the circumference of the air duct 12. The housing 10 is provided with a plurality of second mounting holes (not shown in the figure) surrounding the second opening 103. The unpowered speaker 100 further includes a plurality of first screws (not shown in the figure). The plurality of first screws cooperate with the plurality of first mounting holes and the plurality of second mounting holes to mount the air duct 12 to the second opening 103.

[0041] In this embodiment, the air duct 12 is fixedly connected to the housing 10 via a plurality of first screws. Since the plurality of first screws require the cooperation of a plurality of first mounting holes, and since the plurality of first mounting holes are evenly distributed around the circumference of the air duct 12, the first screws are also evenly distributed around the circumference of the air duct 12. This arrangement allows multiple positions of the air duct 12 to be well constrained by different first screws, thereby increasing the stability of the connection between the air duct 12 and the housing 10.

[0042] In addition, since a plurality of first screws are provided in this embodiment, even if some of the first screws are not locked, the air guide tube 12 can still be stably connected to the housing 10 .

[0043] refer to Figure 1 In one embodiment, the air duct 12 is a plastic air duct 1. According to actual measurements, compared with metal air ducts, the use of plastic air ducts is more conducive to the transfer of kinetic energy to the drum paper 11. Therefore, compared with metal air ducts, the use of plastic air ducts can further improve the sound quality.

[0044] refer to Figure 2 In one embodiment, the housing 10 includes a mounting ear 104 protruding from an edge of the housing 10 on one side of the first opening 102. The mounting ear 104 is provided with a third mounting hole 1041 for a second screw to pass through. With this arrangement, the unpowered speaker 100 can be mounted on the cabinet 200 of the speaker box 1000 by utilizing the second screw to engage the third mounting hole 1041 on the mounting ear 104. Specifically, the second screw is a connector that can stably connect two objects and will not loosen over time. Therefore, using the second screw to connect the unpowered speaker to the cabinet 200 is a preferred embodiment.

[0045] refer to Figure 2 In a specific embodiment, four mounting ears 104 are provided, and the four mounting ears 104 are respectively arranged at the four corners of the housing 10 on one side of the first opening 102. This arrangement can limit the housing 10 at multiple positions, ensuring the installation stability of the unpowered speaker 100.

[0046] refer to Figure 2 In one embodiment, the third mounting hole 1041 is a waist-shaped hole. Specifically, if the third mounting hole 1041 were a round hole, the second screw might be difficult to install if there were misalignment between the unpowered speaker 100 and the cabinet 200 of the speaker 1000. By designing the third mounting hole 1041 as a waist-shaped hole, the specific installation position of the second screw can be adjusted to a certain extent, allowing the second screw to be installed smoothly even if there is misalignment.

[0047] The present invention also provides a speaker 1000, such as Figures 1-6 As shown, the speaker box 1000 includes a box body 200, an unpowered speaker 100, and a powered speaker 300. The unpowered speaker 100 and the powered speaker 300 are both mounted on the box body 200. The unpowered speaker 100 is the unpowered speaker 100 shown in the above embodiment.

[0048] In this embodiment, when the powered speaker 300 makes a sound, an airflow is generated in the box 200. Since the air guide tube 12 has an expansion tendency in the direction away from the drum paper 11, the air guide tube 12 has the technical effect of guiding and concentrating the airflow into the chamber 101. Compared with the existing technical solution in which the drum paper 11 is openly arranged in the box 200 of the speaker 1000, the unpowered speaker 100 of this embodiment can guide the airflow to act more evenly on the drum paper 11. Therefore, the implementation of this embodiment can reduce the distortion of the unpowered speaker 100, improve the sound quality of the unpowered speaker 100, and enable users to obtain a better usage experience.

[0049] refer to Figure 4-Figure 6 In a specific embodiment, the box 200 includes a first side wall 210 and a second side wall 220 that are oppositely arranged. The powered speaker 300 is installed on the first side wall 210 , and the unpowered speaker 100 is installed on the second side wall 220 .

[0050] Specifically, the powered speaker and the unpowered speaker are arranged on opposite sides of the box 200, which is conducive to the airflow generated by the powered speaker 300 when making a sound to flow into the air guide duct 12, thereby providing more sufficient power for the drum paper 11 of the unpowered speaker 100 and improving the sound quality of the unpowered speaker 100.

[0051] refer to Figure 4-Figure 6In a specific embodiment, the box 200 further includes a bottom wall 230 adjacent to the first side wall 210 and the second side wall 220. The unpowered speaker 100 is installed on the second side wall 220 at a position away from the bottom wall 230. The second side wall 220 gradually tilts from the side close to the bottom wall 230 toward the first side wall 210, so that the end of the air guide tube 12 of the unpowered speaker 100 close to the first side wall 210 is located in the central area of the box 200.

[0052] By implementing this embodiment, the end of the air duct 12 close to the first side wall 210 is located in the central area of the box 200. This design facilitates smooth airflow into the air duct 12, thereby allowing the drum paper 11 to obtain more sufficient power and improving the sound quality of the unpowered speaker 100.

[0053] refer to Figure 4 、 Figure 5 In a specific embodiment, the box body 200 also includes a top wall 240 arranged opposite to the bottom wall 230. The top wall 240 includes a handle portion 241 located on the side of the second side wall 220 away from the first side wall 210. The handle portion 241 is provided with a handle opening 2411 to facilitate the user to lift the speaker 1000 using the handle opening 2411.

[0054] This embodiment demonstrates a speaker 1000 that is easy to move. Simply pass your hand through the handle opening 2411 and grasp the handle portion 241 to carry the speaker 1000 away, which is very convenient. It is worth noting that because the handle opening 2411 is provided on the handle portion 241, and the handle portion 241 is located on the side of the second side wall 220 away from the first side wall 210, the interior space of the cabinet 200 is not defined by the handle portion 241. The handle opening 2411 does not connect the interior space of the cabinet 200 with the exterior space. Therefore, the provision of the handle opening 2411 does not negatively affect the sound quality of the speaker 1000.

[0055] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A speaker without a power source, characterized in that: include: a housing having a chamber therein, a first opening communicating with the chamber being provided on one side of the housing, and a second opening communicating with the chamber being provided on the other side of the housing opposite to the first opening; drum paper, which is installed at the first opening; An air duct has one end mounted at the second opening to communicate with the chamber, and the other end extending in a direction away from the drum paper. In the direction in which the air duct is away from the drum paper, the air duct has an expansion tendency.

2. The unpowered speaker according to claim 1, characterized in that: In the direction in which the air guide tube moves away from the drum paper, the expansion tendency of the air guide tube gradually increases.

3. The unpowered speaker according to claim 1, characterized in that In the direction from the air guide tube to the drum paper, the inner contour of the shell has an expansion trend.

4. The unpowered speaker according to claim 1, wherein: A mounting ring seat is provided on the outer side of the air guide tube near one end of the drum paper, and a plurality of first mounting holes are provided on the mounting ring seat, and the plurality of first mounting holes are evenly arranged on the circumference of the air guide tube; a plurality of second mounting holes are provided on the shell body and arranged around the second opening; the unpowered speaker also includes a plurality of first screws, and the plurality of first screws cooperate with the plurality of first mounting holes and the plurality of second mounting holes to install the air guide tube at the second opening.

5. The unpowered loudspeaker according to any one of claims 1 to 4, characterized in that: The air guide tube is a plastic air guide tube.

6. The unpowered loudspeaker according to any one of claims 1 to 4, characterized in that: The shell includes a mounting ear, which is protruded from an edge of the shell on one side of the first opening. The mounting ear is provided with a third mounting hole for the second screw to pass through.

7. The unpowered speaker according to claim 6, characterized in that: The third mounting hole is a waist-shaped hole.

8. A speaker, characterized in that: include: A box body, an unpowered source speaker and a powered source speaker mounted on the box body; wherein the unpowered source speaker is the unpowered source speaker according to any one of claims 1 to 7.

9. The speaker according to claim 8, characterized in that The box body includes a first side wall and a second side wall that are opposite to each other. The powered speaker is installed on the first side wall, and the unpowered speaker is installed on the second side wall.

10. The speaker according to claim 9, characterized in that The box also includes a bottom wall adjacent to the first side wall and the second side wall, and the unpowered speaker is installed on the second side wall at a position away from the bottom wall; the second side wall gradually tilts toward the first side wall from the side close to the bottom wall, so that the end of the air guide tube of the unpowered speaker close to the first side wall is in the central area of the box.

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