Sound production device and electronic product

Abstract

The utility model discloses a sounding device and an electronic product, and relates to the technical field of electronic products, the sounding device comprises a housing, at least one loudspeaker and a passive radiator, the thickness direction of the housing is a first direction, the housing is provided with a sounding side located in the first direction, and the passive radiator is located in the first direction. A first direction and a second direction are arranged in the shell, a phase inversion hole is formed in one side end, in the second direction, of the shell, the second direction intersects with the first direction, the loudspeaker is arranged on the sound production side of the shell, and the passive radiator is arranged on the sound production side of the shell. According to the technical scheme provided by the utility model, the sound production device can realize an ideal low-frequency lower limit on the basis of being ultrathin, and can reduce jitter.

Description

Technical Field

[0001] This utility model relates to the field of electronic product technology, and in particular to a sound-generating device and an electronic product. Background Technology

[0002] Currently, many electronic products are pursuing ultra-thin designs; for example, ultra-thin televisions are becoming increasingly popular in the market. However, due to the structural limitations of "ultra-thin," the speakers inside the television are inevitably compressed, and the low-frequency limit of the speakers is becoming increasingly higher. Traditional speakers struggle to achieve an ideal low-frequency limit within the limited thickness of a television, and due to the confined space, the speakers are prone to vibration during operation, affecting the purity and stability of the sound. Utility Model Content

[0003] The main purpose of this utility model is to propose a sound-generating device and electronic product, which aims to at least solve the technical problems in the related technology that traditional speakers are difficult to achieve the ideal low-frequency lower limit within the limited thickness of a television set, and that due to the limited space, the speakers are prone to vibration during operation, affecting the purity and stability of the sound effect.

[0004] To achieve the above objectives, this utility model proposes a sound-generating device, comprising:

[0005] A housing, the thickness direction of which is a first direction, the housing having a sound-emitting side in the first direction, and a phase-reversing hole provided at one end of the housing in a second direction, the second direction intersecting the first direction;

[0006] At least one speaker is disposed on the sound-emitting side of the housing; and,

[0007] At least one passive radiator is disposed on the sound-emitting side of the housing.

[0008] In one embodiment, the sound-generating device further includes a phase inverter tube with openings at both ends, the phase inverter tube being disposed within the housing and having one end connected to the inner end of the phase inverter hole.

[0009] In one embodiment, a plurality of passive radiators are provided, and the plurality of passive radiators are arranged around the periphery of the loudspeaker.

[0010] In one embodiment, the loudspeaker is configured as one, and the passive radiator is configured as two;

[0011] The two passive radiators are symmetrically distributed relative to the loudspeaker.

[0012] In one embodiment, the sound-generating device further includes a phase inverter tube with openings at both ends, the phase inverter tube being disposed inside the housing and having one end connected to the inner end of the phase inverter hole;

[0013] The two passive radiators and the speaker are arranged along a second direction;

[0014] The inverting tube is arranged on one side of the two passive radiators and the speaker in a third direction.

[0015] In an embodiment, the inverting hole is long-shaped.

[0016] In an embodiment, the length direction of the inverting hole is the third direction.

[0017] In an embodiment, the passive radiator is runway-shaped.

[0018] The utility model discloses still a kind of electronic products, including sound production device, the sound production device includes:

[0019] Shell, its thickness direction is the first direction, the shell has the sound production side in the first direction, the shell is arranged with inverting hole in one side end in the second direction, the second direction is intersected with the first direction;

[0020] At least one speaker, is arranged in the sound production side of the shell;And,

[0021] At least one passive radiator, is arranged in the sound production side of the shell.

[0022] In an embodiment, the electronic product includes a television.

[0023] In the technical solution of this embodiment, the sound-generating device includes a housing, at least one loudspeaker, and a passive radiator. The thickness direction of the housing is a first direction. The housing has a sound-generating side in the first direction. A bass reflex port is provided on one end of the housing in a second direction. The second direction intersects with the first direction. The loudspeaker is disposed on the sound-generating side of the housing, and the passive radiator is disposed on the sound-generating side of the housing. Thus, when the speaker vibrates, the passive radiator vibrates according to the air pressure changes inside the housing, thereby enhancing the low-frequency output. The bass reflex port connects the inside and outside air of the housing; the speaker's operation drives the vibration of the air near the bass reflex port, utilizing the speaker's lost power and enhancing the low-frequency effect to some extent. Since the passive radiator is only located on the sound-generating side, the structure is compact and can be installed on a relatively thin housing, and the bass reflex port does not limit the thickness of the housing. Furthermore, the interaction between the bass reflex port and the passive radiator can change the airflow and vibration modes within the housing, stabilizing the vibration of the passive radiator to some extent. Simultaneously, the presence of the passive radiator can mitigate unstable vibrations caused by airflow at the bass reflex port, thereby reducing the vibration of the sound-generating device. At the same time, the bass reflex port requires a certain depth to lower the resonant frequency; by placing the bass reflex port on one side of the housing in the second direction, even increasing the depth of the bass reflex port will not affect the thickness of the housing. With this configuration, the sound-generating device can achieve an ideal low-frequency limit on an ultra-thin basis and reduce jitter. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure of an embodiment of the sound-generating device provided by this utility model;

[0026] Figure 2 for Figure 1 A side view of the sound-generating device.

[0027] Explanation of icon numbers:

[0028] 100. Sound-generating device; 1. Housing; 11. Bass reflex port; 101. Sound-generating side; 2. Loudspeaker; 3. Passive radiator; 4. Bass reflex tube.

[0029] The purposes, functional features and advantages of the utility model will be further explained in combination with embodiments with reference to the drawings. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0032] In addition, if the embodiments of the utility model involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one feature. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0033] At present, many electronic products are pursuing thinness, for example, ultra-thin televisions are becoming more and more popular in the market, but the sound in the television is inevitably compressed due to the limitation of the "ultra-thin" structure, and the lower limit of the sound frequency is made higher and higher. The traditional sound box is difficult to realize the ideal lower limit of the sound frequency in the limited thickness of the television, and due to the cramped space, the sound box is prone to shaking when working, which affects the purity and stability of the sound effect.

[0034] The main purpose of the utility model is to provide a sound generating device and an electronic product, which aims to at least solve the technical problem that the traditional sound box is difficult to realize the ideal lower limit of the sound frequency in the limited thickness of the television, and due to the cramped space, the sound box is prone to shaking when working, which affects the purity and stability of the sound effect.

[0035] Please refer to Figure 1 and Figure 2 In an embodiment of the utility model, the sound production device 100 includes a shell 1, at least one loudspeaker 2 and a passive radiator 3, the thickness direction of the shell 1 is the first direction, the shell 1 has a sound production side 101 in the first direction, one side end of the shell 1 in the second direction is provided with a reverse hole 11, the second direction intersects the first direction, the loudspeaker 2 is arranged at the sound production side 101 of the shell 1, and the passive radiator 3 is arranged at the sound production side 101 of the shell 1.

[0036] In the technical scheme of the embodiment, the sound production device 100 includes a shell 1, at least one loudspeaker 2 and a passive radiator 3, the thickness direction of the shell 1 is the first direction, the shell 1 has a sound production side 101 in the first direction, one side end of the shell 1 in the second direction is provided with a reverse hole 11, the second direction intersects the first direction, the loudspeaker 2 is arranged at the sound production side 101 of the shell 1, and the passive radiator 3 is arranged at the sound production side 101 of the shell 1. Thus, when the loudspeaker 2 vibrates, the passive radiator 3 will vibrate according to the air pressure change in the shell 1, thereby enhancing the low-frequency output, and the reverse hole 11 communicates the internal and external air of the shell 1, and the operation of the loudspeaker 2 can push the vibration of the air near the reverse hole 11, so that the loss ability of the loudspeaker 2 can be utilized, and the low-frequency effect can be enhanced to a certain extent. Since the passive radiator 3 is only arranged at the sound production side 101, the structure is compact, can be arranged on the thinner shell 1, and the reverse hole 11 will not limit the thickness of the shell 1. Furthermore, the interaction of the reverse hole 11 and the passive radiator 3 can change the airflow and vibration mode in the shell 1, which can stabilize the vibration of the passive radiator 3 to a certain extent, and the existence of the passive radiator 3 can also reduce the unstable vibration caused by the airflow at the reverse hole 11, thereby reducing the vibration of the sound production device 100. At the same time, the reverse hole 11 needs a certain depth to reduce the resonance frequency, and the reverse hole 11 is arranged at one side end of the shell 1 in the second direction, so that even if the depth of the reverse hole 11 is increased, the thickness of the shell will not be affected. In this way, the sound production device 100 can realize the ideal low-frequency lower limit on the basis of ultra-thin, and can reduce the jitter.

[0037] When only the inverting hole 11 is arranged on the shell 1, the depth of the inverting hole 11 depends on the thickness dimension of the side wall of the shell 1; and for the sound generating device 100, the thickness of the side wall of the shell 1 cannot be arranged to be too thick, otherwise the heat dissipation of the whole sound generating device 100 will be affected, and the weight of the sound generating device 100 will be relatively heavy, that is, the depth of the inverting hole 11 that can be arranged is not deep, so that the sound wave generated by the loudspeaker 2 can be directly transmitted to the outside through the inverting hole 11, and it is difficult to ensure that the vibration frequency of the air near the inverting hole 11 matches the vibration frequency of the low frequency band of the loudspeaker 2, so that the purity of the sound and the low frequency extension are insufficient.

[0038] Therefore, in the embodiment of the utility model, the sound generating device 100 further includes an inverting pipe 4 with open two ends, the inverting pipe 4 is arranged in the shell 1 and one end is connected with the inner end of the inverting hole 11. In this way, the sound wave generated by the loudspeaker 2 can be adjusted through the inverting pipe 4, so as to facilitate the control of the phase and frequency response of the sound, thereby optimizing the sound quality of the sound generating device 100.

[0039] The shape of the inverting hole 11 is various, for example, the shape of the inverting hole 11 can be circular, oval and long-shaped, etc. It can be understood that the opening area of the inverting hole 11 will affect the low frequency response of the sound generating device 100, if the cross-sectional area of the inverting hole 11 is too small, it may cause the airflow sound to increase, affecting the sound quality; since the inverting hole 11 is arranged at the side end of the shell 1 in the second direction, the cross-sectional area of the inverting hole 11 is affected by the thickness of the shell 1. In order to increase the cross-sectional area of the inverting hole 11 as much as possible on the basis of the ultra-thin shell 1, in the embodiment of the utility model, the inverting hole 11 is arranged in a long shape; compared with circular and oval, the utilization rate of the area is higher, and it can be arranged larger in the limited space.

[0040] Specifically, the length direction of the inverting hole 11 is the third direction; in this way, the inverting hole 11 can extend in the third direction under the condition that the thickness of the shell 1 is constant, so as to increase the cross-sectional area of the inverting hole 11.

[0041] The distribution mode of the passive radiator 3 and the loudspeaker 2 is various, when the passive radiator 3 is driven to vibrate by the loudspeaker 2, it will emit sound waves in various directions. It can be understood that if the uniformity of the distribution of the passive radiator 3 and the loudspeaker 2 is poor, it may cause the sound waves to be strengthened in some areas and cancelled in other areas, thereby generating sound wave interference phenomenon; such interference may cause the intensity and frequency response of the sound to appear unevenly distributed in space, affecting the auditory experience of the audience. Therefore, in some embodiments, please refer to Figure 1The passive radiator 3 is arranged in multiple, and the multiple passive radiators 3 are arranged around the periphery of the loudspeaker 2; in this way, the distribution of the passive radiator 3 and the loudspeaker 2 is relatively uniform, the energy conversion efficiency can be improved, and the energy loss can be reduced; when the loudspeaker 2 vibrates, the passive radiator 3 synchronously vibrates, forms low-frequency superposition, and makes the low-frequency sound pressure doubled; at the same time, the uniform distribution of the loudspeaker 2 and the passive radiator 3 can provide more uniform sound coverage, so that the audience at different positions can enjoy more consistent sound quality.

[0042] Specifically, in the embodiment of the utility model, please refer to Figure 1 The loudspeaker 2 is arranged as one, and the passive radiator 3 is arranged as two; the two passive radiators 3 are symmetrically distributed relative to the loudspeaker 2.

[0043] As can be seen from the above, compared with the case where only the inverting hole 11 exists, the arrangement of the inverting pipe 4 facilitates the control of the phase and frequency response of the sound, thereby optimizing the sound quality of the sound generating device 100; however, the existence of the inverting pipe 4 will inevitably make the size of the required shell 1 larger. In order to make the arrangement of the inverting pipe 4 not affect the size of the shell 1 in the first direction, that is, the thickness of the shell 1, in the embodiment of the utility model, the sound generating device 100 further comprises an inverting pipe 4 with two open ends, the inverting pipe 4 is arranged in the shell 1 and connected with the inner end of the inverting hole 11 at one end, the two passive radiators 3 and the loudspeaker 2 are arranged along the second direction, and the inverting pipe 4 is arranged on one side of the two passive radiators 3 and the loudspeaker 2 in the third direction. In this way, the passive radiator 3 and the loudspeaker 2 are arranged along the second direction, and the inverting pipe 4 is arranged on one side of the two passive radiators 3 and the loudspeaker 2 in the third direction, only the size of the shell 1 in the third direction needs to be increased slightly, so that the interior of the shell 1 can accommodate the inverting pipe 4, without affecting the thickness of the shell 1, and the interior of the shell 1 can have enough space to meet the length requirement of the inverting pipe 4.

[0044] The shape of the passive radiator 3 is various, for example, the passive radiator 3 can be circular, oval or rectangular, in the embodiment of the utility model, please refer to Figure 1 The passive radiator 3 is in the shape of a racetrack. The racetrack-shaped passive radiator 3 can effectively improve the sound quality, especially in the low-frequency performance, it can enhance the depth and strength of the bass, making the sound more full and rich.

[0045] The utility model discloses still propose a kind of electronic products, the electronic product includes sound production device 100, the specific structure of the sound production device 100 refers to above-mentioned embodiment, since the present electronic product has adopted all technical solutions of above-mentioned all embodiments, therefore at least have all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer one by one elaboration.

[0046] In the technical scheme of the embodiment, when the loudspeaker 2 vibrates, the passive radiator 3 vibrates according to the air pressure change in the shell 1, thereby enhancing the low-frequency output, and the reverse phase hole 11 communicates the inside and outside air of the shell 1, the operation of the loudspeaker 2 can push the vibration of the air near the reverse phase hole 11, so that the loss ability of the loudspeaker 2 can be utilized, and the low-frequency effect can be enhanced to a certain extent; since the passive radiator 3 is only arranged on the sound production side 101, the structure is compact, and the shell 1 can be arranged on the shell 1, and the reverse phase hole 11 does not limit the thickness of the shell 1; furthermore, the interaction between the reverse phase hole 11 and the passive radiator 3 can change the airflow and vibration mode in the shell 1, so that the vibration of the passive radiator 3 can be stabilized to a certain extent, and the existence of the passive radiator 3 can also reduce the unstable vibration caused by the airflow at the reverse phase hole 11, thereby reducing the vibration of the sound production device 100.

[0047] The electronic product can be a television, a notebook computer, or a smart sound box.

[0048] The above-mentioned is only the exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A sound producing device, characterized by, The sound emitting device comprises: a housing, a thickness direction of which is a first direction, the housing having a sound emitting side in the first direction, one side end of the housing in a second direction intersecting the first direction being provided with a reverse phase hole; at least one loudspeaker provided on the sound emitting side of the housing; and at least one passive radiator provided on the sound emitting side of the housing. The sound emitting device further comprises a reverse phase tube with both ends being open, the reverse phase tube being arranged in the housing and one end of the reverse phase tube being connected with an inner end of the reverse phase hole.

2. The sound production device of claim 1, wherein The passive radiators are arranged in a plurality, and the plurality of passive radiators are arranged in a ring around the periphery of the loudspeaker.

3. The sound production device of claim 1, wherein The loudspeaker is arranged as one, and the passive radiators are arranged as two.

4. The sound production device of claim 3, wherein The two passive radiators are symmetrically distributed with respect to the loudspeaker. The sound emitting device further comprises a reverse phase tube with both ends being open, the reverse phase tube being arranged in the housing and one end of the reverse phase tube being connected with an inner end of the reverse phase hole.

5. The sound production device of claim 4, wherein, The two passive radiators and the loudspeaker are arranged along a second direction. The reverse phase tube is arranged on one side of the two passive radiators and the loudspeaker in a third direction. The reverse phase hole is arranged in an elongated shape.

6. The sound production device of claim 1, wherein A length direction of the reverse phase hole is a third direction.

7. The sound production device of claim 6, wherein The passive radiators are arranged in a runway shape.

8. The sound production device of claim 1, wherein, The electronic product comprises a television.

9. An electronic product, characterized by comprising: The electronic product comprises a television.

10. The electronic product of claim 9, wherein, ​

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