Trapezoidal flat speaker and sound box

Abstract

The utility model relates to the technical field of loudspeakers, and in particular to a trapezoidal flat-panel loudspeaker and a sound box. The trapezoidal flat-panel loudspeaker includes a basin frame, a magnetic circuit system and a vibration system. The cross section of the basin frame is a right-angled trapezoidal structure with two right angles. The two bottom sides of the right-angled trapezoidal structure are of unequal lengths. The top corners of the right-angled trapezoidal structure are chamfered. The cross sections of the magnetic circuit system and the vibration system are right-angled trapezoidal structures designed to match the basin frame. The trapezoidal flat-panel loudspeaker of the utility model increases the radiation area and BL value, so that the working efficiency of the sound box using the trapezoidal flat-panel loudspeaker of the present application is greatly improved, and the loudness of the sound box is greatly improved. The trapezoidal flat-panel loudspeaker, based on the original rectangular structure, stretches the two sides involved in one of the top angles, effectively utilizes the sound box space, optimizes the speaker size, improves the working efficiency of the speaker, and achieves the effect of improving the loudness and low-frequency sound quality.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a trapezoidal flat-panel loudspeaker and a sound box. Background Art

[0002] With the continuous development of communication equipment and the continuous improvement of people's consumption capacity, people have higher and higher requirements for the audio effects of electronic products, the frequency of use is increasing, and the requirements for product reliability are also getting higher and higher.

[0003] The current industry situation is that products are getting thinner and thinner, and the space is getting smaller and smaller, but less than 5% of the input electrical energy is converted into sound energy, and the other 95% is converted into heat energy, etc., so the working efficiency of the speaker is low. In the existing technology, most speakers use the method of increasing BL value, reducing weight, and increasing radiation area Sd in a square structure within a limited sound box space to improve the sound quality. Traditional square speakers have reached the limit, but the effect is far from enough. Summary of the invention

[0004] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, a trapezoidal flat-panel loudspeaker and a sound box are provided, the square structure of the loudspeaker is improved, the working efficiency of the loudspeaker is improved, and the loudness and low-frequency sound quality of the sound box are enhanced.

[0005] The utility model solves the technical problem by adopting a technical solution: a trapezoidal flat speaker, comprising a basin frame, a magnetic circuit system and a vibration system, wherein the cross section of the basin frame is a right-angled trapezoidal structure with two right angles, the two bottom sides of the right-angled trapezoidal structure are of unequal lengths, and the top corners of the right-angled trapezoidal structure are chamfered.

[0006] The cross-section of the magnetic circuit system and the vibration system is a right-angle trapezoidal structure designed to match the basin frame.

[0007] Furthermore, the magnetic circuit system comprises a pole plate, a magnetic steel and a magnetic bowl glued together from top to bottom, and the basin frame is set on the outside of the magnetic circuit system.

[0008] The vibration system comprises a sound membrane and a voice coil. The sound membrane is bonded on the top of the basin frame, and the voice coil is spaced and sleeved on the outside of the pole plate and the magnetic steel, and is spaced and arranged inside the magnetic bowl.

[0009] Specifically, the voice coil, the pole plate and the magnet adopt a right-angled trapezoidal structure similar to the right-angled trapezoidal structure of the basin frame, and the cross-section of the sound membrane and the magnetic bowl is a right-angled trapezoidal structure similar to the right-angled trapezoidal structure of the basin frame.

[0010] A sound box includes a speaker and a housing, wherein the speaker adopts the above-mentioned trapezoidal flat panel speaker, and the housing includes an upper cover and a lower housing, wherein the upper cover and the lower housing are combined to form a cavity for placing the trapezoidal flat panel speaker.

[0011] The upper cover is provided with an opening for accommodating the trapezoidal flat panel speaker to pass through, and the upper end surface of the trapezoidal flat panel speaker does not exceed the opening.

[0012] Furthermore, a buffer foam is provided on the upper end surface of the upper cover, and the buffer foam is located outside the outer circle of the opening and does not overlap with the trapezoidal flat-panel speaker in the vertical direction.

[0013] The beneficial effect of the utility model is that the trapezoidal flat panel loudspeaker of the utility model increases the radiation area and the BL value, so that the working efficiency of the speaker and the loudness of the speaker box using the trapezoidal flat panel loudspeaker of the application are greatly improved.

[0014] The right-angled trapezoidal structure of the trapezoidal flat-panel speaker of the utility model stretches the two sides involved in one of the top angles on the basis of the original rectangular structure, effectively utilizing the speaker space, optimizing the speaker size, improving the working efficiency of the speaker, and achieving the effect of improving the loudness and low-frequency sound quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of an existing speaker;

[0017] Figure 2 It is a structural schematic diagram of the speaker of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a trapezoidal flat panel loudspeaker of the utility model;

[0019] Figure 4 This utility model Figure 3 Schematic cross-sectional view of ;

[0020] Figure 5 This utility model Figure 3 Schematic diagram of the explosion.

[0021] Numbers in the figure: 1-diaphragm, 2-voice coil, 3-basin frame, 4-pole plate, 5-magnetic steel, 6-magnetic bowl, 7-upper cover, 8-lower shell, 9-buffer foam. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Figure 3-Figure 5 The trapezoidal flat speaker shown in the figure comprises a basin frame 3, a magnetic circuit system and a vibration system. The cross section of the basin frame 3 is a right-angled trapezoidal structure with two right angles. The two bottom sides of the right-angled trapezoidal structure are of unequal lengths. The top corners of the right-angled trapezoidal structure are chamfered.

[0024] The cross-section of the magnetic circuit system and the vibration system is a right-angled trapezoidal structure designed to match the basin frame 3.

[0025] The magnetic circuit system includes a pole plate 4, a magnetic steel 5 and a magnetic bowl 6 glued together from top to bottom, and a basin frame 3 is set on the outside of the magnetic circuit system.

[0026] The vibration system includes a diaphragm 1 and a voice coil 2. The diaphragm 1 is bonded to the top of the basin frame 3. The voice coil 2 is spaced apart on the outside of the pole plate 4 and the magnetic steel 5, and spaced apart on the inside of the magnetic bowl 6.

[0027] like Figure 2 As shown, a sound box includes a speaker and a housing. The speaker adopts the above-mentioned trapezoidal flat speaker. The housing includes an upper cover 7 and a lower shell 8. The upper cover 7 and the lower shell 8 are combined to form a cavity for placing the trapezoidal flat speaker.

[0028] The upper cover 7 is provided with an opening for allowing the trapezoidal flat panel speaker to pass through, and the upper end surface of the trapezoidal flat panel speaker does not exceed the opening.

[0029] A buffer foam 9 is provided on the upper end surface of the upper cover 7. The buffer foam 9 is located outside the outer circle of the opening and does not overlap with the trapezoidal flat-panel speaker in the vertical direction.

[0030] Figure 1 The radiation area Sd of the speaker is 256mm 2 , BL value is 1.3, and the trapezoidal flat speaker of this application has a radiation area Sd of 365 mm 2 , BL value is 1.9. As the Sd and BL values ​​increase, it can be known through calculation that the working efficiency of the speaker using the trapezoidal flat speaker of the present application is greatly improved, and the loudness and low-frequency sound quality of the speaker are greatly improved.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A trapezoidal flat panel loudspeaker, comprising a basin frame (3), a magnetic circuit system and a vibration system, characterized in that: The cross section of the basin frame (3) is a right-angled trapezoidal structure with two right angles, the two bottom sides of the right-angled trapezoidal structure are of unequal lengths, and the top corners of the right-angled trapezoidal structure are chamfered. The cross-section of the magnetic circuit system and the vibration system is a right-angled trapezoidal structure designed to match the basin frame (3).

2. The trapezoidal flat panel speaker according to claim 1, characterized in that: The magnetic circuit system comprises a pole plate (4), a magnetic steel (5) and a magnetic bowl (6) glued together from top to bottom, and a basin frame (3) is sleeved on the outside of the magnetic circuit system. The vibration system comprises a sound membrane (1) and a voice coil (2), wherein the sound membrane (1) is bonded to the top of a basin frame (3), and the voice coil (2) is spaced apart and sleeved outside the pole plate (4) and the magnetic steel (5), and spaced apart and arranged inside the magnetic bowl (6).

3. A sound box, characterized in that: The invention comprises a speaker and a housing, wherein the speaker is the trapezoidal flat panel speaker according to claim 1, and the housing comprises an upper cover (7) and a lower housing (8), wherein the upper cover (7) and the lower housing (8) are combined to form a cavity for placing the trapezoidal flat panel speaker. The upper cover (7) is provided with an opening for allowing the trapezoidal flat panel speaker to pass through, and the upper end surface of the trapezoidal flat panel speaker does not extend beyond the opening.

4. The speaker according to claim 3, characterized in that: A buffer foam (9) is provided on the upper end surface of the upper cover (7), and the buffer foam (9) is located outside the outer circle of the opening and does not overlap with the trapezoidal flat-panel speaker in the vertical direction.

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