Sound production unit

Abstract

The utility model discloses a sounding unit, which comprises two structural units, each structural unit comprises a basin stand, U iron, a central magnetic structure, an annular magnetic structure, a high-pitch vibration assembly, a support ring and a low-pitch vibration assembly, and the basin stand is provided with a notch; the enclosure wall of the U iron is connected with the basin frame and blocks the notch; the central magnetic structure is arranged on the U iron; the annular magnetic structure surrounds the central magnetic structure and is arranged on the U iron, a high-pitch magnetic gap is formed between the annular magnetic structure and the central magnetic structure, a low-pitch magnetic gap is formed between the enclosure wall of the U iron and the annular magnetic structure, and a through hole communicated with the high-pitch magnetic gap is formed in the U iron; the supporting ring is arranged on the annular magnetic structure; u irons of two structural units in the sounding unit are connected with each other, high-pitch magnetic gaps of the two structural units are communicated through a through hole, gaps of the two basin frames are correspondingly spliced to form an installation window, and a vibration motor is arranged in the installation window. The sound production unit has a vibration function and realizes high integration.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic converters, in particular to a sound generating unit. Background Art

[0002] Nowadays, mobile terminals such as mobile phones and tablets are enriching people's lives, and electroacoustic converters play an indispensable role as audio devices.

[0003] As consumers' demands for overall sound quality and loudness continue to rise, so too do the demands on the sound units. To achieve a better experience, multiple sound units—woofers, midrange units, and tweeters—are often placed within a single speaker, resulting in a low level of integration. In particular, when a vibration device is incorporated into the entire speaker, it requires additional installation space, further reducing the overall level of integration. Utility Model Content

[0004] The technical problem solved by the utility model is to provide a highly integrated sound unit with a vibration function.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a sound unit, including two structural units, the structural units include

[0006] A basin frame, wherein a notch is provided on the basin frame;

[0007] A U-iron, the wall of which is connected to the basin frame and blocks the gap;

[0008] A central magnetic structure, the central magnetic structure being provided on the U iron;

[0009] An annular magnetic structure, the annular magnetic structure is arranged on the U iron around the central magnetic structure, a treble magnetic gap is formed between the annular magnetic structure and the central magnetic structure, a woofer magnetic gap is formed between the surrounding wall of the U iron and the annular magnetic structure, and a through hole is provided on the U iron to connect the treble magnetic gap;

[0010] A tweeter vibration assembly, the tweeter vibration assembly comprising a connected tweeter diaphragm assembly and a tweeter voice coil, the tweeter diaphragm assembly being connected to the annular magnetic structure, and the tweeter voice coil being arranged corresponding to the tweeter magnetic gap;

[0011] a support ring, the support ring being arranged on the annular magnetic structure;

[0012] A bass vibration assembly, the bass vibration assembly comprising a connected bass diaphragm assembly and a bass voice coil, the bass diaphragm assembly being in the shape of a ring frame as a whole, the inner edge of the bass diaphragm assembly being connected to the support ring, the outer edge of the bass diaphragm assembly being connected to the basin frame, and the bass voice coil being arranged corresponding to the bass magnetic gap;

[0013] The U-irons of the two structural units in the sound-generating unit are connected to each other, the tweeter magnetic gaps of the two structural units are connected through the through-holes, and the notches of the two basin frames are correspondingly spliced ​​to form an installation window, in which a vibration motor is provided.

[0014] In one embodiment, the support ring is made of elastic material, the bass vibration assembly further includes a hard dome, the hard dome is provided with a vent hole, and the hard dome is provided on the bass diaphragm assembly corresponding to the tweeter diaphragm assembly.

[0015] In one embodiment, the support ring is made of rubber or plastic.

[0016] In one embodiment, the hard dome is made of steel.

[0017] In one embodiment, the bass diaphragm assembly also includes a bass diaphragm, and the bass diaphragm includes a bass inner fixed part, an inner folding ring part, a connecting part, an outer folding ring part and a bass outer fixed part connected in sequence from the inside to the outside, the bass outer fixed part is connected to the basin frame, the bass inner fixed part is connected to the support ring and the hard dome, and at least a part of the bass inner fixed part is located directly above the tweeter diaphragm assembly.

[0018] In one embodiment, the bass diaphragm assembly further includes a bass dome, which is in the shape of a ring frame as a whole and is connected to the connecting portion.

[0019] In one embodiment, the tweeter diaphragm assembly includes a tweeter diaphragm, and the tweeter diaphragm includes a tweeter inner fixed part, a tweeter folding ring part and a tweeter outer fixed part connected in sequence from the inside to the outside, the tweeter outer fixed part is connected to the annular magnetic structure, and the support ring is provided on the tweeter outer fixed part, and the support ring is indirectly connected to the annular magnetic structure through the tweeter outer fixed part.

[0020] In one embodiment, the vibration motors are respectively provided on both sides of the sound-generating unit.

[0021] In one embodiment, the vibration motor includes a driving voice coil, a motor washer, a motor magnet, a motor yoke and an elastic member. The driving voice coil is fixedly installed in the mounting window. The opposite sides of the motor magnet are respectively connected to the motor washer and the motor yoke to form a vibration body. The vibration body is arranged corresponding to the hollow area of ​​the driving voice coil, and the vibration body is connected to the basin frame through the elastic member.

[0022] In one embodiment, the elastic member is a metal spring.

[0023] The beneficial effects of the present invention are as follows: the sound unit has a novel and compact structure, a vibration function, and is highly integrated. The tweeter system is located in the middle of the woofer system, utilizing the saturation area of ​​the woofer magnetic circuit to maximize the use of magnetic energy product. The setting of the support ring allows the inner edge of the woofer diaphragm assembly to extend to the top of the tweeter diaphragm assembly, increasing the bass compliance by staggering, thereby increasing the low-frequency response bandwidth, and effectively improving the bass performance of the sound unit. The tweeter system and the woofer system are designed to be non-co-cavity, and the tweeter system has an independent back cavity. The tweeter system and the woofer system will not interfere with each other, which is conducive to ensuring the performance of the sound unit. The use of a double-sided sound structure further improves the acoustic performance. At the same time, the double-sided coaxial anti-phase operation can also play a vibration reduction role, so that the sound unit has more reliable working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1 This is a cross-sectional view of the sound unit of the first embodiment of the present invention;

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0027] Description of Figure Numbers:

[0028] 1. U iron; 11. surrounding wall; 12. through hole;

[0029] 2. Basin stand; 21. Notch;

[0030] 3. Central magnetic structure;

[0031] 4. Ring magnetic structure;

[0032] 5. Support ring;

[0033] 6. Treble vibration assembly; 61. Treble diaphragm; 611. Treble inner fixing part; 612. Treble folding ring; 613. Treble outer fixing part; 62. Treble voice coil;

[0034] 7. Bass vibration assembly; 71. Bass diaphragm; 711. Bass inner fixing portion; 712. Inner folding ring portion; 713. Connecting portion; 714. Outer folding ring portion; 715. Bass outer fixing portion; 72. Bass voice coil;

[0035] 8. Hard ball top;

[0036] 9. Vibration motor; 91. Driving voice coil; 92. Motor washer; 93. Motor magnet; 94. Motor yoke; 95. Elastic part; 96. Positioning ring. DETAILED DESCRIPTION

[0037] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, if the embodiments of the present invention include descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0041] In addition, if the word "and / or" appears throughout the text, it means that three parallel solutions are included. For example, "and / or" includes solutions, or solutions, or solutions that meet all of the requirements simultaneously. In addition, the technical solutions of various embodiments may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. If the combination of technical solutions is mutually contradictory or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0042] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0043] Example 1

[0044] Please refer to Figure 1 and Figure 2 , Embodiment 1 of the present utility model is: a sound unit, including two structural units, the structural unit includes a basin 2, a U iron 1, a central magnetic structure 3, an annular magnetic structure 4, a treble vibration component 6, a support ring 5 and a bass vibration component 7, the basin 2 is provided with a notch 21, the surrounding wall 11 of the U iron 1 is connected to the basin 2 and blocks the notch 21; the central magnetic structure 3 and the annular magnetic structure 4 are both provided on the U iron 1, the annular magnetic structure 4 is arranged around the central magnetic structure 3, a treble magnetic gap is formed between the annular magnetic structure 4 and the central magnetic structure 3, a woofer magnetic gap is formed between the surrounding wall 11 of the U iron 1 and the annular magnetic structure 4, and a through hole 12 connected to the treble magnetic gap is provided on the U iron 1; the treble vibration component 6 includes connected treble vibration Membrane assembly and tweeter voice coil 62, the tweeter diaphragm assembly is connected to the annular magnetic structure 4, and the tweeter voice coil 62 is set corresponding to the tweeter magnetic gap; the support ring 5 is provided on the annular magnetic structure 4; the bass vibration assembly 7 includes a connected bass diaphragm assembly and a bass voice coil 72, the bass diaphragm assembly is in the shape of a ring frame as a whole, the inner edge of the bass diaphragm assembly is connected to the support ring 5, the outer edge of the bass diaphragm assembly is connected to the basin 2, and the bass voice coil 72 is set corresponding to the bass magnetic gap; the U irons 1 of the two structural units in the sound-emitting unit are connected to each other, and the tweeter magnetic gaps of the two structural units are connected through the through hole 12, and the notches 21 of the two basins 2 are correspondingly spliced ​​to form an installation window, and a vibration motor 9 is provided in the installation window.

[0045] The vibration phases of the two bass diaphragm assemblies in the two structural units are opposite, and the vibration phases of the two treble diaphragm assemblies in the two structural units are opposite.

[0046] In this embodiment, the U-irons 1 in the two structural units are independent structural members, and the two are fixedly connected by gluing, welding, or other means. In other embodiments, the U-iron 1 in one structural unit and the U-iron 1 in the other structural unit can also be integrally processed and formed into an integrated structure, which can reduce the number of components of the sound unit.

[0047] In order to allow the air to circulate more smoothly when the tweeter system of the sound unit is working, there are multiple through holes 12 on the U iron 1, and the multiple through holes 12 are evenly distributed along the tweeter magnetic gap.

[0048] As a preferred embodiment, the two structural units are symmetrically arranged.

[0049] The central magnetic structure 3 includes a central magnetic steel and a central washer, the central magnetic steel connects the central washer and the U iron 1, the annular magnetic structure 4 includes an annular magnetic steel and an annular washer, the annular magnetic steel connects the U iron 1 and the annular washer, the annular washer is aligned or roughly aligned with the central washer, the support ring 5 is directly or indirectly connected to the annular washer, and the tweeter diaphragm assembly is directly or indirectly connected to the annular washer.

[0050] Specifically, the tweeter diaphragm assembly includes a tweeter diaphragm 61, which includes a tweeter inner fixing portion 611, a tweeter folding ring portion 612, and a tweeter outer fixing portion 613, which are sequentially connected from the inside to the outside. The tweeter outer fixing portion 613 is connected to the annular magnetic structure 4. The support ring 5 is provided on the tweeter outer fixing portion 613, and the support ring 5 is indirectly connected to the annular magnetic structure 4 via the tweeter outer fixing portion 613. Optionally, the tweeter diaphragm assembly further includes a tweeter dome, which is provided on the tweeter inner fixing portion 611.

[0051] The bass diaphragm assembly also includes a bass diaphragm 71, which includes a bass inner fixing portion 711, an inner folding ring portion 712, a connecting portion 713, an outer folding ring portion 714, and a bass outer fixing portion 715, which are connected in sequence from the inside to the outside. The bass outer fixing portion 715 is connected to the basin frame 2, and the bass inner fixing portion 711 is connected to the support ring 5. At least part of the bass inner fixing portion 711 is located directly above the tweeter diaphragm assembly. The provision of the support ring 5 allows the inner edge of the bass diaphragm assembly to extend above the tweeter diaphragm assembly, and the cross-sectional arc length of the inner folding ring portion 712 can be set longer. The bass compliance is increased by staggering, thereby increasing the low-frequency response bandwidth, and effectively improving the bass performance of the sound unit. Optionally, the bass diaphragm assembly also includes a bass dome, which is in the shape of a ring frame as a whole and is connected to the connecting portion 713. In this embodiment, the long side of the support ring 5 is connected to the bass external fixing portion 715 , and the short side of the support ring 5 is connected to the connecting portion 713 .

[0052] Optionally, the support ring 5 is made of an elastic material, and the vibration structure also includes a hard dome 8. The bass internal fixing portion 711 is connected to the hard dome 8. The hard dome 8 is provided with an air vent. The hard dome 8 is provided on the bass diaphragm assembly corresponding to the tweeter diaphragm assembly. When the sound unit is working at a high frequency, the treble sound pressure can be radiated through the air vent on the hard dome 8. When the sound unit is working at a low frequency, the hard dome 8 can vibrate together, pushing the air to do work, thereby increasing the bass radiation energy and improving the loudness. The support ring 5 made of elastic material not only serves to separate the upper space of the tweeter diaphragm assembly from the inner space of the bass diaphragm assembly, but also serves to enable the hard dome 8 to vibrate along with the bass diaphragm assembly.

[0053] In this embodiment, the material of the hard ball top 8 is steel. In other embodiments, the hard ball top 8 can also be made of hard plastic or other materials.

[0054] The support ring 5 is made of rubber, plastic or other materials. In this embodiment, the support ring 5 is made of silicone.

[0055] Optionally, the vibration motors 9 are respectively provided on both sides of the sound-generating unit.

[0056] The vibration motor 9 includes a driving voice coil 91, a motor washer 92, a motor magnet 93, a motor yoke 94 and an elastic member 95. The driving voice coil 91 is fixedly installed in the installation window. The opposite sides of the motor magnet 93 are respectively connected to the motor washer 92 and the motor yoke 94 to form a vibration body. The vibration body is arranged corresponding to the hollow area of ​​the driving voice coil 91, and the vibration body is connected to the basin frame 2 through the elastic member 95.

[0057] In this embodiment, the elastic member 95 is a metal spring.

[0058] Optionally, the vibration motor 9 further includes a positioning ring 96 bonded to the driving voice coil 91. The positioning ring 96 is connected to the metal dome. The cantilever of the metal dome is welded to the motor yoke 94. When the vibration motor 9 is energized to generate a magnetic field, the vibrating body vibrates. In this embodiment, the voice coil is fixedly connected to the surrounding wall 11 of the U-iron 1.

[0059] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the practical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A sound unit, characterized in that: Comprising two structural units, the structural units include A basin frame, wherein a notch is provided on the basin frame; A U-iron, the wall of which is connected to the basin frame and blocks the gap; A central magnetic structure, the central magnetic structure being provided on the U iron; An annular magnetic structure, the annular magnetic structure is arranged on the U iron around the central magnetic structure, a treble magnetic gap is formed between the annular magnetic structure and the central magnetic structure, a woofer magnetic gap is formed between the surrounding wall of the U iron and the annular magnetic structure, and a through hole is provided on the U iron to connect the treble magnetic gap; A tweeter vibration assembly, the tweeter vibration assembly comprising a connected tweeter diaphragm assembly and a tweeter voice coil, the tweeter diaphragm assembly being connected to the annular magnetic structure, and the tweeter voice coil being arranged corresponding to the tweeter magnetic gap; a support ring, the support ring being arranged on the annular magnetic structure; A bass vibration assembly, the bass vibration assembly comprising a connected bass diaphragm assembly and a bass voice coil, the bass diaphragm assembly being in the shape of a ring frame as a whole, the inner edge of the bass diaphragm assembly being connected to the support ring, the outer edge of the bass diaphragm assembly being connected to the basin frame, and the bass voice coil being arranged corresponding to the bass magnetic gap; The U-irons of the two structural units in the sound-generating unit are connected to each other, the tweeter magnetic gaps of the two structural units are connected through the through-holes, and the notches of the two basin frames are correspondingly spliced ​​to form an installation window, in which a vibration motor is provided.

2. The sound unit according to claim 1, characterized in that: The supporting ring is made of elastic material, and the bass vibration assembly also includes a hard dome, which is provided with a vent hole. The hard dome is arranged on the bass diaphragm assembly corresponding to the tweeter diaphragm assembly.

3. The sound unit according to claim 2, characterized in that: The support ring is made of rubber or plastic.

4. The sound unit according to claim 2, characterized in that: The material of the hard dome is steel.

5. The sound unit according to claim 2, characterized in that: The bass diaphragm assembly also includes a bass diaphragm, which includes a bass inner fixing part, an inner folding ring part, a connecting part, an outer folding ring part and a bass outer fixing part connected in sequence from the inside to the outside, the bass outer fixing part is connected to the basin frame, the bass inner fixing part is connected to the support ring and the hard dome, and at least part of the bass inner fixing part is located directly above the tweeter diaphragm assembly.

6. The sound unit according to claim 5, characterized in that: The bass diaphragm assembly further comprises a bass dome, which is in the shape of a ring frame as a whole and is connected to the connecting portion.

7. The sound unit according to claim 1, characterized in that: The tweeter diaphragm assembly includes a tweeter diaphragm, and the tweeter diaphragm includes a tweeter inner fixing part, a tweeter folding ring part and a tweeter outer fixing part connected in sequence from the inside to the outside. The tweeter outer fixing part is connected to the annular magnetic structure, and the support ring is provided on the tweeter outer fixing part. The support ring is indirectly connected to the annular magnetic structure through the tweeter outer fixing part.

8. The sound unit according to claim 1, characterized in that: The vibration motors are respectively provided on both sides of the sound-generating unit.

9. The sound unit according to claim 1, characterized in that: The vibration motor includes a driving voice coil, a motor washer, a motor magnet, a motor yoke and an elastic member. The driving voice coil is fixedly installed in the installation window. The opposite sides of the motor magnet are respectively connected to the motor washer and the motor yoke to form a vibration body. The vibration body is arranged corresponding to the hollow area of ​​the driving voice coil, and the vibration body is connected to the basin frame through the elastic member.

10. The sound unit according to claim 9, characterized in that: The elastic member is a metal spring.

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