Sound box and large-aperture full-frequency loudspeaker thereof

Abstract

The utility model provides a large-aperture full-frequency loudspeaker which comprises a frame, a magnetic circuit system, a voice coil, a short circuit ring and / or a high pitch cup, and the bottom of the frame is provided with an opening. The magnetic circuit system is arranged corresponding to the opening; the voice coil is arranged in a magnetic gap of the magnetic circuit system; the short circuit ring is arranged adjacent to the voice coil and is used for suppressing self inductive reactance of the voice coil when a high-frequency signal is input and improving the sound pressure level of the high-frequency end of the large-aperture full-frequency loudspeaker; the high-pitch cup is arranged on the top of the voice coil and used for condensing high-frequency sound waves. The utility model also provides a sound box. According to the sound box and the large-aperture full-frequency loudspeaker thereof, the same loudspeaker can normally realize the sound restoration effect in the low frequency band, the middle frequency band and the high frequency band, the sound quality debugging difficulty of the sound box is optimized, the consistency of the timbre in each frequency band is ensured, and the problem that the positioning sense of the sound of the traditional sound box is different is solved.

Description

Technical Field

[0001] The present application relates to the technical field of loudspeakers, and in particular to a sound box and a large-diameter full-range loudspeaker thereof. Background Art

[0002] Speaker, commonly known as horn, is one of the core components of speaker production. Its basic function is to restore sound signals. Traditional speakers are mainly composed of a basin frame 1, a magnetic plate 2, a magnet 3, a T iron 4, a terminal 5, a spring 6, a voice coil 7, a silk thread 8, a drum paper body 9, a drum paper fold 10, and a dust cap 11. Due to technical limitations, the traditional speaker design method ( Figure 1 ), it is impossible to design a large-diameter speaker (especially one with a diameter of ≥78mm) to be a full-range speaker. Because of this, woofers, mid-range speakers, and tweeters appeared on the market. Accordingly, most speakers on the market only use a combination of low, mid-range, and tweeter speakers ( Figure 6 ), or a combination of low-pitched and high-pitched speakers ( Figure 7 ) solution to complete the design of the speaker, in order to restore the full-band sound signal and present the audience with a perfect auditory effect in the full band. Figure 6 The speaker combination of the speaker box allows the woofer to restore the low-frequency signal, the mid-range speaker to restore the intermediate-frequency signal, and the tweeter to restore the high-frequency signal; Figure 7 The speaker combination of the speaker is that the woofer restores the low-frequency signal, and the tweeter restores the high-frequency signal.

[0003] Both of the above speaker designs have a problem: "The speakers operating in different frequency bands operate simultaneously in the frequency bands between the intersection of the bass and midrange speakers, between the intersection of the midrange and tweeter speakers, or between the intersection of the bass and tweeter speakers. It is difficult to make the two speakers operate independently within their respective operating frequency bands." Therefore, on the one hand, it increases the difficulty of adjusting the speaker sound quality; secondly, due to the different materials used to make the speakers, speakers operating in different frequency bands will have different timbres, which will affect the sound reproduction effect; thirdly, the speakers operating in different frequency bands are located in different positions on the speaker, which will lead to differences in the location of the sound source and affect the sense of sound positioning. Utility Model Content

[0004] In order to solve the above technical problems, the present application provides a sound box and a large-diameter full-range speaker thereof to solve the above technical problems in the prior art. The present application provides a large-diameter full-range speaker, the diameter of the large-diameter full-range speaker is greater than 78mm, and it includes:

[0005] a basin stand with an opening at the bottom;

[0006] A magnetic circuit system corresponding to the opening setting;

[0007] The voice coil is located in the magnetic gap of the magnetic circuit system;

[0008] The short-circuit ring is set adjacent to the voice coil to suppress the voice coil's own inductive reactance when a high-frequency signal is input, thereby increasing the sound pressure level at the high-frequency end of the large-diameter full-range speaker.

[0009] and / or tweeter cup, located on top of the voice coil, to focus high-frequency sound waves.

[0010] In one embodiment, the magnetic circuit system is of an external magnetic type, and the magnetic circuit system includes a T-iron, a magnet arranged around the T-iron, and a magnetic conductive sheet arranged on the magnet. The T-iron includes a main body and a vertical part perpendicularly connected to the main body to form a T shape. The cross-section of the short-circuit ring is annular, and the short-circuit ring is sleeved on the vertical part.

[0011] In another embodiment, the magnetic circuit system is an internal magnetic type, and the magnetic circuit system includes a U iron, a magnet arranged inside the U iron, and a magnetic conductive sheet arranged on the magnet. The cross-section of the short-circuit ring is annular, and the short-circuit ring is sleeved on the magnetic conductive sheet.

[0012] In one embodiment, the cross section of the tweeter cup is in the shape of an inverted frustum.

[0013] In one embodiment, the large-diameter full-range speaker also includes drum paper, one end of which is connected to the upper part of the voice coil and the other end is connected to the basin frame. The drum paper includes a drum paper body and a drum paper folded ring, and the drum paper folded ring is a convex ring, a concave ring or a corrugated ring.

[0014] In one embodiment, the number of corrugations of the corrugated ring is one, two, or more; and the shape of the corrugations is circular or sharp.

[0015] In one embodiment, the drum paper body is made of paper, metal, glass fiber, carbon fiber or PP.

[0016] In one embodiment, the drum paper folding ring is made of cloth, rubber, PU, ​​cloth, foam cloth, foam rubber or foam PU.

[0017] In one embodiment, the large-diameter full-range speaker further includes a spring, a silk thread, and a terminal block. The spring is connected to the voice coil, the silk thread is connected to the basin frame via screws or rivets, and the terminal block is provided on the outer wall of the basin frame and is electrically connected to the silk thread. The effective bandwidth of the high-frequency end of the frequency response curve of the large-diameter full-range speaker is above 18 kHz.

[0018] In order to solve the above problems, the present application also provides a speaker, including the large-diameter full-range speaker as mentioned above.

[0019] Beneficial effects of the present application: The present invention provides a speaker and a large-diameter full-range speaker thereof, which enables the same speaker to achieve normal sound restoration effects in the low, medium and high frequency bands, optimizes the difficulty of sound quality debugging of the speaker, ensures the consistency of tone in each frequency band, and eliminates the problem of different positioning sense of sound of traditional speakers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the application, among which:

[0021] Figure 1 A schematic diagram of the principle structure of a loudspeaker in the prior art;

[0022] Figure 2 This is a schematic diagram of the principle structure of an embodiment of a large-caliber full-range loudspeaker of the present application;

[0023] Figure 3 This is a schematic diagram of the principle structure of another embodiment of the large-aperture full-range loudspeaker of the present application;

[0024] Figure 4 for Figure 2 A schematic diagram of the structure of a drum paper fold of an embodiment of a large-caliber full-range loudspeaker is shown;

[0025] Figure 5 for Figure 2 A schematic diagram of the structure of another embodiment of the drum paper fold of a large-caliber full-range loudspeaker is shown;

[0026] Figure 6 This is a structural diagram of a combination speaker in traditional speaker design;

[0027] Figure 7 This is another structural diagram of a combination speaker in traditional speaker design;

[0028] Figure 8 for Figure 2 or Figure 3 The large-diameter full-range speakers shown and Figure 6 or Figure 7 Schematic diagram of the frequency response curves of the mid-bass, mid-range and tweeter speakers. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other alternative implementations obtained without creative work are within the scope of protection of this application.

[0030] Please refer to Figure 2-Figure 5 as well as Figure 8 , Figure 2 This is a schematic diagram of the principle structure of an embodiment of a large-caliber full-range loudspeaker of the present application; Figure 3 This is a schematic diagram of the principle structure of another embodiment of the large-aperture full-range loudspeaker of the present application; Figure 4 for Figure 2 A schematic diagram of the structure of a drum paper fold of an embodiment of a large-caliber full-range loudspeaker is shown; Figure 5 for Figure 2 A schematic diagram of the structure of another embodiment of the drum paper fold of a large-caliber full-range loudspeaker is shown; Figure 8 for Figure 2 or Figure 3 The large-diameter full-range speakers shown and Figure 6 or Figure 7 Schematic diagram of the frequency response curves of the mid-bass, mid-range and tweeter speakers.

[0031] In this application, a large-aperture full-range speaker has a diameter of 78 mm or greater and includes a frame 1, a magnetic circuit system, a voice coil 7, a shorting ring 21, and / or a tweeter cup 22. The frame 1 has an opening at the bottom; the magnetic circuit system is arranged corresponding to the opening; the voice coil 7 is positioned within the magnetic gap of the magnetic circuit system; the shorting ring 21 is positioned adjacent to the voice coil 7 to suppress the voice coil 7's self-inductance when high-frequency signals are input, thereby improving the sound pressure level at the high frequency end of the large-aperture full-range speaker; and the tweeter cup 22 is positioned on top of the voice coil 7 to concentrate high-frequency sound waves. The shorting ring 21, also known as an eddy current ring or decoupling ring, primarily suppresses the voice coil 7's self-inductance when high-frequency signals are input, thereby improving the speaker's high-frequency signal reproduction capability. When an audio signal passes through the voice coil 7, it generates an alternating magnetic field. This alternating magnetic field induces eddy currents in the shorting ring 21. The secondary magnetic field generated by the eddy currents interacts with the primary magnetic field generated by the voice coil 7, forming an opposing magnetic field, thereby partially offsetting the changes in the primary magnetic field. Through this eddy current effect, the short-circuit ring 21 can effectively reduce the inductive reactance of the voice coil 7 when a high-frequency signal is input, thereby improving the restoration capability of the high-frequency signal. The tweeter cup 22 mainly condenses high-frequency sound waves and improves the speaker's restoration capability for high-frequency signals. Through the provision of the short-circuit ring 21 and / or the tweeter cup 22, the large-caliber full-range speaker of the present application can achieve normal sound restoration effects in the low, medium and high frequency bands, thereby achieving full-band sound restoration in one speaker, optimizing the difficulty of sound quality debugging of the speaker, ensuring the consistency of the tone in each frequency band, and eliminating the problem of different positioning sense of sound of traditional speakers.

[0032] In one embodiment, the magnetic circuit system is of external magnetic type, and the magnetic circuit system includes a T-iron 4, a magnet 3 arranged around the T-iron 4, and a magnetic conductive sheet 2 arranged on the magnet 3. The T-iron 4 includes a main body and a vertical part perpendicularly connected to the main body to form a T shape. The cross-section of the short-circuit ring 21 is annular, and the short-circuit ring 21 is sleeved on the vertical part.

[0033] In another embodiment, the magnetic circuit system is of internal magnetic type, and the magnetic circuit system includes a U iron 4-1, a magnet 3-1 arranged inside the U iron 4-1, and a magnetic conductive sheet 2-1 arranged on the magnet 3-1. The cross-section of the short-circuit ring 21 is annular, and the short-circuit ring 21 is sleeved on the magnetic conductive sheet 2-1.

[0034] In one embodiment, the cross section of the tweeter cup 22 is in the shape of an inverted frustum.

[0035] In one embodiment, the large-diameter full-range speaker also includes drum paper, one end of which is connected to the upper part of the voice coil 7 and the other end is connected to the basin frame 1. The drum paper includes a drum paper body 9 and a drum paper folding ring 10. The drum paper folding ring 10 is a convex ring, a concave ring or a corrugated ring.

[0036] In one embodiment, the number of corrugations of the corrugated ring is one, two, or more; and the shape of the corrugations is circular or sharp.

[0037] In one embodiment, the drum paper body 9 is made of paper, metal, glass fiber, carbon fiber or PP.

[0038] In one embodiment, the drum paper folding ring 10 is made of cloth, rubber, PU, ​​cloth, foam cloth, foam rubber or foam PU.

[0039] In one embodiment, the large-diameter full-range speaker further includes a spring 6, a silk thread 8, and a terminal 5. The spring 6 is connected to the voice coil 7. The silk thread 8 is connected to the frame 1 via screws or rivets. The terminal 5 is provided on the outer wall of the frame 1 and is electrically connected to the silk thread 8. The effective bandwidth of the high-frequency end of the frequency response curve of the large-diameter full-range speaker is above 18 kHz.

[0040] It should be noted that all components of the large-caliber full-range speaker of this embodiment can be bonded together using glue. The frame 1 and the terminal block 5 can also be connected and fixed using screws or rivets, and the frame 1 and the magnetic sheet 2 can also be connected and fixed using screws or rivets.

[0041] When an audio signal is input to terminal 5, it is transmitted to voice coil 7 via wire 8. At this point, voice coil 7 acts as an inductor, generating an alternating magnetic field around it. This alternating magnetic field repeles the constant magnetic field formed by magnetic plate 2 (or 2-1), magnet 3 (or 3-1), and T-iron 4 or U-iron 4-1, forcing voice coil 7 to move up and down. This in turn drives the vertical movement of damper 6, drum paper body 9, drum paper fold 10, and tweeter cup 22, ultimately squeezing air to achieve sound reproduction.

[0042] The present application also provides a speaker, comprising the large-diameter full-range speaker of the aforementioned embodiment.

[0043] Beneficial effects of the present application: The present invention provides a speaker and a large-diameter full-range speaker thereof, which enables the same speaker to achieve normal sound restoration effects in the low, medium and high frequency bands, optimizes the difficulty of sound quality debugging of the speaker, ensures the consistency of tone in each frequency band, and eliminates the problem of different positioning sense of sound of traditional speakers.

[0044] This application adds a short-circuit ring to the magnetic circuit design of a traditional speaker unit, adopts a lightweight and rigid drum paper body and folded ring design, and replaces the dust cap with a tweeter cup. Ultimately, this allows a single large-diameter speaker (especially one with a diameter of 78mm or greater) to reproduce sound signals in the low, mid, and high frequency bands. This solves the problem that traditional speaker designs require a combination of bass, mid, and tweeter units, or a combination of bass and tweeter units, to reproduce sound signals in the low, mid, and high frequency bands.

[0045] Finally, it should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0047] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A large-caliber full-range loudspeaker, characterized in that: The large-aperture full-range speaker has a caliber of 78 mm or more and includes: a basin stand with an opening at the bottom; a magnetic circuit system, arranged corresponding to the opening; a voice coil disposed in the magnetic gap of the magnetic circuit system; A short-circuit ring is provided adjacent to the voice coil and is used to suppress the self-inductance of the voice coil when a high-frequency signal is input, thereby improving the sound pressure level at the high-frequency end of the large-caliber full-range speaker; and / or a tweeter cup, which is located on the top of the voice coil and is used to condense high-frequency sound waves.

2. The large-caliber full-range loudspeaker according to claim 1, characterized in that: The magnetic circuit system is of external magnetic type, comprising a T-iron, a magnet arranged around the T-iron, and a magnetic conductive sheet arranged on the magnet. The T-iron comprises a main body and a vertical portion perpendicularly connected to the main body to form a T-shape. The cross-section of the short-circuit ring is annular, and the short-circuit ring is sleeved on the vertical portion.

3. The large-caliber full-range loudspeaker according to claim 2, characterized in that: The magnetic circuit system is of internal magnetic type, comprising a U iron, a magnet disposed inside the U iron, and a magnetic conductive sheet disposed on the magnet. The cross section of the short-circuit ring is annular, and the short-circuit ring is sleeved on the magnetic conductive sheet.

4. The large-caliber full-range loudspeaker according to claim 1, characterized in that: The cross section of the treble cup is in the shape of an inverted circular frustum.

5. The large-caliber full-range loudspeaker according to claim 1, characterized in that: The large-diameter full-range speaker also includes drum paper, one end of which is connected to the upper part of the voice coil and the other end is connected to the basin frame. The drum paper includes a drum paper body and a drum paper folded ring, and the drum paper folded ring is a convex ring, a concave ring or a corrugated ring.

6. The large-caliber full-range loudspeaker according to claim 5, characterized in that: The number of corrugations of the corrugated ring is one, two or more; the shape of the corrugations is circular or sharp.

7. The large-caliber full-range loudspeaker according to claim 5, characterized in that: The drum paper carcass is made of paper, metal, glass fiber, carbon fiber or PP.

8. The large-caliber full-range loudspeaker according to claim 5, characterized in that: The material of the drum paper folding ring is cloth, rubber, PU, ​​cloth, foam cloth, foam rubber or foam PU.

9. The large-caliber full-range loudspeaker according to claim 1, characterized in that: The large-caliber full-range speaker also includes a spring wave, a silk thread and a terminal block. The spring wave is connected to the voice coil, and the silk thread is connected to the basin frame through screws or rivets. The terminal block is arranged on the outer wall of the basin frame and is electrically connected to the silk thread. The effective bandwidth of the high-frequency end of the frequency response curve of the large-caliber full-range speaker is above 18KHz.

10. A speaker, characterized in that: It comprises a large-caliber full-range loudspeaker as described in any one of claims 1-9.

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