Horn with ultrahigh frequency band and high sensitivity

Abstract

The invention relates to a loudspeaker with ultrahigh frequency band and high sensitivity, which comprises a bracket, a magnetic assembly, a voice coil and a voice cone, and is characterized in that the bracket with an accommodating cavity is arranged to play a role in accommodating the magnetic assembly, the voice coil and the voice cone, the magnetic assembly plays a role in forming a magnetic field, and a first end of the voice coil is inserted into the magnetic cavity of the magnetic assembly; after being electrified, the voice coil can generate electromagnetic action with the magnetic field, and the voice coil moves up and down and drives the voice cone connected with the voice coil to vibrate, so that resonance with surrounding air is generated to realize a sound production function. Meanwhile, the voice coil framework of the voice coil is made of aluminum oxide, so that a frequency response curve can be obviously prominent in an ultrahigh frequency band and still has good linearity and low-distortion characteristics in the ultrahigh frequency band, tone balance can be well kept, movement of a voice cone can be better controlled, and the sound quality is improved. The expressive force of high pitch and alto pitch is more accurate, the frequency response curve of the loudspeaker with ultrahigh frequency band and high sensitivity is optimized, and the loudspeaker has better acoustic quality.

Description

Technical Field

[0001] The present invention relates to the technical field of loudspeakers, and in particular to a loudspeaker with high sensitivity in an ultra-high frequency band. Background Art

[0002] A speaker is an electroacoustic transducer component and a common sound amplification device in daily life. It is widely used in electronic products such as audio equipment and headphones. Its function is to convert electrical signals into sound. It can be used to play audio and can be adjusted to any volume. It is easy to use and brings a lot of convenience to people's lives. Its working principle is that the audio current can vibrate the sound basin through electromagnetic, piezoelectric or electrostatic effects and resonate with the surrounding air to make sound, thereby realizing the sound-making function of the speaker.

[0003] The ultra-high frequency band of the speaker is an important part in the division of audio sound, generally referring to the audio part with a frequency higher than 20kHz. The sound in the ultra-high frequency band can give the music more airiness and magnificence, improve the overall sound quality, and present more complete and rich music details. However, in order to make the frequency response curve of the existing speakers have a significant improvement or prominence in the ultra-high frequency band, the frequency response curve is prone to fluctuations in the entire audio range, resulting in distortion and unbalanced tone, thereby affecting the acoustic quality of the speaker. Summary of the invention

[0004] Based on this, it is necessary to provide a speaker with high sensitivity in the ultra-high frequency band.

[0005] The technical solution of the present invention to solve the above technical problem is as follows: A speaker with high sensitivity in the ultra-high frequency band, comprising:

[0006] A bracket, wherein a receiving cavity is provided in the middle of the bracket, a first mounting opening is provided on a first end of the bracket, and a second mounting opening is provided on a second end of the bracket, wherein the first mounting opening and the second mounting opening are respectively communicated with the receiving cavity;

[0007] A magnetic component, the magnetic component is disposed in the accommodating cavity, and the magnetic component at least partially protrudes from the first mounting opening, and the magnetic component has a magnetic cavity therein;

[0008] A voice coil, the voice coil comprising: a voice coil frame and a voice coil wire, the voice coil wire is wound on a first end of the voice coil frame, the voice coil frame is movably arranged in the accommodating cavity, and the first end of the voice coil frame is inserted in the magnetic cavity, and the material of the voice coil frame is aluminum oxide;

[0009] A sound cone, wherein the outer edge of the sound cone is connected to the side wall of the second mounting opening, and the inner edge of the sound cone is connected to the second end of the voice coil frame.

[0010] In one embodiment, a dust cap is disposed on the second end of the voice coil frame, and the material of the dust cap is aluminum oxide.

[0011] In one embodiment, the speaker with high sensitivity in the ultra-high frequency band further includes: a spring, wherein the spring is sleeved on the voice coil frame and connected to the side wall of the accommodating cavity.

[0012] In one embodiment, the speaker with high sensitivity in the ultra-high frequency band also includes: a first terminal and a second terminal, the first terminal and the second terminal are arranged on the bracket at intervals, the first terminal is electrically connected to the first end of the voice coil wire, and the second terminal is electrically connected to the second end of the voice coil wire.

[0013] In one embodiment, the magnetic component includes: a U cup and a magnet, the U cup is connected to the side wall of the first mounting port, the magnet is arranged in the U cup, and the magnet and the U cup are spaced to form the magnetic cavity.

[0014] In one embodiment, an annular limiting block is provided on the outer surface of the U cup, an annular limiting groove is provided on the side wall of the first mounting opening, and the annular limiting block is embedded in the annular limiting groove.

[0015] In one embodiment, a washer is disposed on the magnet.

[0016] In one embodiment, the bottom protrusion of the U cup is provided with a boss, and the magnet is arranged on the boss.

[0017] In one embodiment, the height of the magnet is 7 mm.

[0018] In one embodiment, the height of the boss is 0.5 mm.

[0019] The beneficial effects of the present invention are as follows: the speaker with high sensitivity in the ultra-high frequency band provided by the present invention can accommodate the magnetic component, the voice coil and the sound basin by providing a bracket with a hollow structure having a accommodating cavity. The magnetic component can form a magnetic field. The first end of the voice coil is inserted into the magnetic cavity of the magnetic component. After the voice coil is energized, it can generate electromagnetic action with the magnetic field. The voice coil moves up and down and drives the sound basin connected to the voice coil to vibrate, thereby resonating with the surrounding air to achieve the sound-generating function. At the same time, by setting the material of the voice coil frame of the voice coil to aluminum oxide, the frequency response curve can be significantly prominent in the ultra-high frequency band, and still has good linearity and low distortion characteristics in the ultra-high frequency band, can well maintain the balance of the timbre, can better control the movement of the sound basin, so that the expressiveness of the treble and mid-range is more accurate, and the frequency response curve of the speaker with high sensitivity in the ultra-high frequency band is optimized, and has better acoustic quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the structure of a loudspeaker with high sensitivity in the ultra-high frequency band of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional decomposition structure of the speaker with high sensitivity in the ultra-high frequency band of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional decomposition structure of the speaker with high sensitivity in the ultra-high frequency band of the present invention;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of a loudspeaker with high sensitivity in the ultra-high frequency band of the present invention;

[0025] Figure 5 A frequency response curve diagram of a loudspeaker with high sensitivity in the ultra-high frequency band of the present invention;

[0026] Figure 6 A distortion curve diagram of a speaker with high sensitivity in the ultra-high frequency band of the present invention;

[0027] Figure 7 The R&B curve diagram of the speaker with high sensitivity in the ultra-high frequency band of the present invention;

[0028] Figure 8 This is an IMP curve diagram of the speaker with high sensitivity in the ultra-high frequency band of the present invention.

[0029] In the attached drawings, 10 is a speaker with high sensitivity in the ultra-high frequency band; 100 is a bracket; 101 is a housing cavity; 110 is a first mounting port; 120 is a second mounting port; 130 is an annular limit groove; 200 is a magnetic component; 201 is a magnetic cavity; 210 is a U cup; 211 is a boss; 212 is an annular limit block; 220 is a magnet; 230 is a washer; 300 is a voice coil; 310 is a voice coil frame; 320 is a voice coil wire; 400 is a sound basin; 500 is a dust cap; 610 is a first terminal; 620 is a second terminal; 700 is a spring. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] In one embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a speaker 10 with high sensitivity in the ultra-high frequency band includes: a bracket 100, a magnetic component 200, a voice coil 300 and a sound cone 400, wherein a receiving cavity 101 is provided in the middle of the bracket 100, a first mounting opening 110 is provided on a first end of the bracket 100, and a second mounting opening 120 is provided on a second end of the bracket 100, wherein the first mounting opening 110 and the second mounting opening 120 are respectively connected to the receiving cavity 101, and the magnetic component 200 is disposed in the receiving cavity 101, and the magnetic component 200 at least partially protrudes from the first mounting opening 120. 10 is set, the magnetic component 200 has a magnetic cavity 201, the voice coil 300 includes: a voice coil frame 310 and a voice coil wire 320, the voice coil wire 320 is wound on the first end of the voice coil frame 310, the voice coil frame 310 is movably set in the accommodating cavity 101, and the first end of the voice coil frame 310 is inserted in the magnetic cavity 201, the voice coil frame 310 is made of aluminum oxide, the outer edge of the sound cone 400 is connected to the side wall of the second mounting port 120, and the inner edge of the sound cone 400 is connected to the second end of the voice coil frame 310.

[0034] In this embodiment, the bracket 100 is a hollow shell structure, and a accommodating cavity 101 is opened in the middle of the bracket 100 for accommodating the magnetic component 200, the voice coil 300 and the sound cone 400. The first end of the bracket 100 is the top of the bracket 100, and the second end of the bracket 100 is the bottom of the bracket 100. The first end and the second end of the bracket 100 are respectively opened with a first mounting port 110 and a second mounting port 120. The magnetic component 200 is connected to the side wall of the first mounting port 110, and the sound cone 400 is connected to the side wall of the second mounting port 120, so that the magnetic component 200 and the sound cone 400 are installed on the bracket 100. The magnetic component 200 can play a role in forming a magnetic field. The first end of the voice coil 300 is inserted in the magnetic cavity 201 of the magnetic component 200. After the voice coil 300 is energized, it can generate electromagnetic action with the magnetic field. The voice coil 300 moves up and down and drives the sound cone 400 connected to the voice coil 300 to vibrate, thereby resonating with the surrounding air to achieve the sound function.

[0035] In the present embodiment, the material of the voice coil frame 310 of the voice coil 300 is set to be alumina. Compared with the traditional voice coil frame 310 made of polyimide, the voice coil frame 310 made of alumina can make the frequency response curve have obvious prominence in the ultra-high frequency band, and still have good linearity and low distortion characteristics in the ultra-high frequency band, can well maintain the balance of the tone, and can better control the movement of the sound cone 400, so that the expression of the treble and mid-range is more accurate. At the same time, it is also beneficial for the sound cone 400 to mainly vibrate as a whole at a lower frequency, reduce the phenomenon of anti-phase split vibration, optimize the frequency response curve of the speaker 10 with high sensitivity in the ultra-high frequency band, and make the speaker 10 with high sensitivity in the ultra-high frequency band have better acoustic quality.

[0036] In one embodiment, Figure 2 and Figure 3As shown, a dust cap 500 is provided on the second end of the voice coil frame 310, and the material of the dust cap 500 is aluminum oxide. Specifically, a dust cap 500 is provided on the end of the voice coil frame 310 away from the magnetic component 200, and the dust cap 500 is adapted to the end shape of the second end of the voice coil frame 310, and is used to close the second end of the voice coil 300, which can protect the voice coil 300 and prevent dust in the environment from entering the interior of the voice coil 300, thereby avoiding contamination of the ultra-high frequency band high sensitivity speaker 10, ensuring the internal cleanliness of the ultra-high frequency band high sensitivity speaker 10, and ensuring the normal use of the ultra-high frequency band high sensitivity speaker 10, thereby facilitating the service life of the ultra-high frequency band high sensitivity speaker 10. At the same time, by setting the material of the dust cap 500 to alumina, compared with the traditional paper dust cap 500, the dust cap 500 made of alumina can further make the frequency response curve of the speaker 10 with high sensitivity in the ultra-high frequency band have obvious prominence in the ultra-high frequency band, and has good linearity and low distortion characteristics in the ultra-high frequency band, can well maintain the balance of the tone, and has better acoustic quality.

[0037] In one embodiment, Figure 2 , Figure 3 and Figure 4 As shown, the magnetic assembly 200 includes: a U cup 210 and a magnet 220, the U cup 210 is connected to the side wall of the first mounting opening 110, the magnet 220 is arranged in the U cup 210, and the magnet 220 and the U cup 210 are spaced to form the magnetic cavity 201. Specifically, the U cup 210 is a cup body structure with a U-shaped cross-section, the first end of the U cup 210 is inserted into the first mounting opening 110 and connected to the side wall of the first mounting opening 110, the width of the magnet 220 is smaller than the width of the U cup 210, and the outer surface of the magnet 220 and the inner wall of the U cup 210 are spaced to form an annular gap, that is, the magnetic cavity 201. The width of the magnet 220 is smaller than the width of the voice coil frame 310. When the voice coil 300 is energized and forced to move in a direction close to the magnet 220, the magnet 220 can be located inside the first end of the voice coil frame 310. In this way, the magnetic field generated by the voice coil 300 after being energized interacts with the magnetic field generated by the magnet 220, so that the voice coil 300 is forced to move in the vertical direction inside the magnetic cavity 201.

[0038] In one embodiment, Figure 4As shown, the speaker 10 with high sensitivity in the ultra-high frequency band further includes: a damper 700, which is sleeved on the voice coil frame 310, and the damper 700 is connected to the side wall of the accommodating cavity 101. Specifically, the damper 700 is an annular structure, the inner wall of the damper 700 is connected to the middle of the voice coil frame 310, and the outer wall of the damper 700 is connected to the side wall of the accommodating cavity 101, which can maintain the correct position of the voice coil 300 in the magnetic cavity 201, so that the voice coil 300 can stably reciprocate along the axial direction when subjected to force, and at the same time, it can also prevent dust from entering the U cup 210.

[0039] In one embodiment, Figure 1 As shown, the speaker 10 with high sensitivity in the ultra-high frequency band also includes: a first terminal 610 and a second terminal 620, the first terminal 610 and the second terminal 620 are arranged on the bracket 100 at intervals, the first terminal 610 is electrically connected to the first end of the voice coil wire 320, and the second terminal 620 is electrically connected to the second end of the voice coil wire 320. Specifically, a first mounting block and a second mounting block are spaced apart on the bracket 100, a first mounting groove is formed on the first mounting block, and a second mounting groove is formed on the second mounting block, a first terminal 610 is fixed in the first mounting groove, and a second terminal 620 is fixed in the second mounting groove, and the first terminal 610 and the second terminal 620 can be stably mounted on the bracket 100. By arranging the first terminal 610 and the second terminal 620 at intervals on the bracket 100 and electrically connecting the voice coil wire 320 wound on the voice coil frame 310 through the brocade wire, power supply to the voice coil 300 can be achieved. In this way, the voice coil 300 can be energized to generate a magnetic field that interacts with the magnetic field of the magnet 220, so that the voice coil 300 can be energized to drive the sound basin 400 to move up and down.

[0040] In one embodiment, Figure 4 As shown, an annular stopper 212 is provided on the outer surface of the U cup 210, and an annular stopper groove 130 is provided on the side wall of the first mounting opening 110, and the annular stopper block 212 is embedded in the annular stopper groove 130. Specifically, the annular stopper block 212 is provided on the first end of the U cup 210, and when the first end of the U cup 210 is inserted into the first mounting opening 110, the annular stopper block 212 is embedded in the annular stopper groove 130 on the side wall of the first mounting opening 110, which can increase the contact area between the U cup 210 and the side wall of the first mounting opening 110, and can stably install the U cup 210 on the bracket 100.

[0041] In one embodiment, Figure 2 , Figure 3 and Figure 4As shown, a washer 230 is disposed on the magnet 220. Specifically, the washer 230 plays a role of magnetic conduction, and is used to form a magnetic circuit together, which can reduce magnetic resistance, can provide the required uniform magnetic field for the movement of the voice coil 300, can reduce the size of the bass distortion of the speaker 10 with high sensitivity in the ultra-high frequency band, and improve the sound quality.

[0042] In one embodiment, Figure 4 As shown, the bottom of the U cup 210 is convexly provided with a boss 211, and the magnet 220 is arranged on the boss 211. Specifically, the width of the boss 211 is adapted to the width of the magnet 220, which can increase the length of the magnetic cavity 201 in the vertical direction, so that the voice coil 300 is energized and forced to move in the magnetic cavity 201, which can increase the distance that the voice coil 300 moves downward, so that the speaker 10 with high sensitivity in the ultra-high frequency band has better acoustic performance.

[0043] In one embodiment, Figure 4 As shown, the height of the magnet 220 is 7 mm, and the height of the boss 211 is 0.5 mm. Specifically, the shape of the magnet 220 is cylindrical, and the shape of the boss 211 is correspondingly cylindrical. The bottom diameter of the conventional magnet 220 is 13.9 mm, and the height is 5 mm. By setting the bottom diameter of the magnet 220 to 13.9 mm and the height to 7 mm, the boss 211 with a height of 0.5 mm can act as a gasket, which can enhance the magnetic field of the magnet 220, and can make the voice coil 300 subject to a greater force in an instant, which is conducive to the voice coil 300 having a faster transient response, and can generate vibration more quickly, so that the frequency response curve has a significant prominence in the ultra-high frequency band.

[0044] Compared with the prior art, the present invention has at least the following advantages:

[0045] The present invention provides a speaker with high sensitivity in the ultra-high frequency band. The bracket with a hollow structure having a housing cavity can accommodate a magnetic component, a voice coil and a sound cone. The magnetic component can form a magnetic field. The first end of the voice coil is inserted into the magnetic cavity of the magnetic component. When the voice coil is energized, it can generate an electromagnetic effect with the magnetic field. The voice coil moves up and down and drives the sound cone connected to the voice coil to vibrate, thereby resonating with the surrounding air to achieve the sound function. At the same time, please refer to Figure 5 , Figure 6 , Figure 7 and Figure 8By setting the material of the voice coil frame of the voice coil to alumina, the frequency response curve can be significantly prominent in the ultra-high frequency band, and still has good linearity and low distortion characteristics in the ultra-high frequency band, can well maintain the balance of the tone, can better control the movement of the sound basin, and make the expression of the treble and mid-range more accurate, optimize the frequency response curve of the speaker with high sensitivity in the ultra-high frequency band, and have better acoustic quality.

[0046] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-mentioned embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of this application shall be based on the attached claims.

Claims

1. A speaker with high sensitivity in the ultra-high frequency band, characterized in that: include: A bracket, wherein a receiving cavity is provided in the middle of the bracket, a first mounting opening is provided on a first end of the bracket, and a second mounting opening is provided on a second end of the bracket, wherein the first mounting opening and the second mounting opening are respectively communicated with the receiving cavity; A magnetic component, the magnetic component is disposed in the accommodating cavity, and the magnetic component at least partially protrudes from the first mounting opening, and the magnetic component has a magnetic cavity therein; A voice coil, the voice coil comprising: a voice coil frame and a voice coil wire, the voice coil wire is wound on a first end of the voice coil frame, the voice coil frame is movably arranged in the accommodating cavity, and the first end of the voice coil frame is inserted in the magnetic cavity, and the material of the voice coil frame is aluminum oxide; A sound cone, wherein the outer edge of the sound cone is connected to the side wall of the second mounting opening, and the inner edge of the sound cone is connected to the second end of the voice coil frame.

2. The speaker with high sensitivity in the ultra-high frequency band according to claim 1, characterized in that: A dust cap is arranged on the second end of the voice coil frame, and the material of the dust cap is aluminum oxide.

3. The speaker with high sensitivity in the ultra-high frequency band according to claim 1, characterized in that: Also includes: The damper is sleeved on the voice coil frame and connected to the side wall of the accommodating cavity.

4. The speaker with high sensitivity in the ultra-high frequency band according to claim 1, characterized in that: Also includes: A first wiring terminal and a second wiring terminal, wherein the first wiring terminal and the second wiring terminal are arranged on the bracket at an interval, the first wiring terminal is electrically connected to the first end of the voice coil wire, and the second wiring terminal is electrically connected to the second end of the voice coil wire.

5. The speaker with high sensitivity in the ultra-high frequency band according to claim 1, characterized in that: The magnetic component includes: a U cup and a magnet. The U cup is connected to the side wall of the first mounting port. The magnet is arranged in the U cup, and the magnetic cavity is formed between the magnet and the U cup.

6. The speaker with high sensitivity in the ultra-high frequency band according to claim 5, characterized in that: An annular limiting block is arranged on the outer surface of the U cup, an annular limiting groove is opened on the side wall of the first mounting opening, and the annular limiting block is embedded in the annular limiting groove.

7. The speaker with high sensitivity in the ultra-high frequency band according to claim 5, characterized in that: A washer is arranged on the magnet.

8. The speaker with high sensitivity in the ultra-high frequency band according to claim 7, characterized in that: The bottom of the U cup is protruded with a boss, and the magnet is arranged on the boss.

9. The speaker with high sensitivity in the ultra-high frequency band according to claim 8, characterized in that: The height of the magnet is 7 mm.

10. The speaker with high sensitivity in the ultra-high frequency band according to claim 9, characterized in that: The height of the boss is 0.5 mm.

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