Diaphragm loudspeaker with tone tuning member

Abstract

The utility model discloses a diaphragm loudspeaker with a tuning member, which comprises a bracket B and a bracket A. The bracket B and the bracket A are respectively arranged at two ends of the loudspeaker, and a diaphragm is arranged between the bracket B and the bracket A; a gasket is arranged on the face, facing the vibrating diaphragm, of the support B, a magnet set B is arranged in an inner cavity of the gasket, a gap is formed between the outer edge of the magnet set B and the inner diameter edge of the gasket, a tuning piece B is arranged in the gap between the outer edge of the magnet set B and the inner diameter edge of the gasket, and the outer edge of the tuning piece B is matched with the inner diameter of the gasket in shape. The outer edge of the tuning piece B is adjacent to the inner diameter of the gasket, a through opening is formed in the tuning piece B, and the magnet set B is clamped in the opening. According to the utility model, the tone tuning member is arranged in the gap area of the loudspeaker diaphragm, the tone tuning effect is realized by changing the volume of the cavity in the diaphragm, the resonant frequency can be accurately adjusted, and the sound curve is smoother.

Description

TECHNICAL FIELD

[0001] The utility model relates to a loudspeaker technical field, especially a kind of flat diaphragm loudspeaker with tuning piece. BACKGROUND

[0002] Flat diaphragm loudspeaker is to lay conductor line on flat diaphragm, diaphragm is placed in magnetic field, and sound is generated by the synchronous movement of diaphragm driven by current signal change in voice coil in magnetic field.In existing loudspeaker design, the gap between diaphragm and magnet, metal wire layer is usually controlled at about 0.1mm, some even as small as 0.05mm-0.08mm, this close gap design is mainly to ensure electromagnetic conversion efficiency, currently by setting tuning net or tuning paper outside loudspeaker, sound curve is changed by adjusting air permeability, but this method has limited tuning effect, cannot accurately control acoustic characteristics in membrane, sound curve is not smooth enough, and product volume is increased. SUMMARY

[0003] The utility model aims at overcoming the shortcomings of prior art, provide a kind of by adding filling tuning piece in loudspeaker gasket (and / or membrane ring) to improve tone quality, improve the volume of cavity in membrane, the novel loudspeaker tuning technology of adjusting cavity volume by filling in membrane, can realize more fine tone quality control, make frequency response curve more smooth.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of diaphragm loudspeaker with tuning piece, including B support and A support, B support and A support are respectively arranged at the two ends of loudspeaker, and diaphragm is arranged between B support and A support;The side of B support towards diaphragm is provided with gasket, B magnet group is arranged in the inner cavity of gasket, B magnet group is arranged on B support, and interval spacing is arranged between the outer edge of B magnet group and the inner diameter edge of gasket, B tuning piece is arranged in the gap of interval spacing between the outer edge of B magnet group and the inner diameter edge of gasket, and the outer edge of B tuning piece is matched with the shape of the inner diameter of gasket.

[0006] The outer edge of B tuning piece is arranged adjacent to the inner diameter of gasket, through opening is formed in B tuning piece, B magnet group is arranged in opening, and the thickness H1 of gasket is greater than the thickness H3 of B tuning piece.

[0007] Further, in some embodiments, the side of A support towards diaphragm is provided with membrane ring, A magnet group is arranged in the inner cavity of membrane ring, A magnet group is arranged on A support, interval spacing is arranged between the outer edge of A magnet group and the inner diameter edge of membrane ring, and A tuning piece is arranged in the gap of interval spacing between the outer edge of A magnet group and the inner diameter edge of membrane ring.

[0008] The outer edge of the A tuning piece is matched with the inner diameter of the membrane ring, the outer edge of the A tuning piece is adjacent to the inner diameter of the membrane ring, another opening is arranged on the A tuning piece, the A magnet group is arranged in the opening of the A tuning piece, and the thickness H2 of the membrane ring is greater than the thickness H4 of the A tuning piece.

[0009] Further, in some embodiments, the A tuning piece and the B tuning piece have the same structure.

[0010] The thickness H3 of the B tuning piece is 2 / 3-3 / 4 of the thickness H1 of the gasket, the top surface of the B magnet group is higher than the inner surface of the B tuning piece, that is, the top surface of the B magnet group 15 is closer to the diaphragm 18 than the inner surface of the B tuning piece 36, and the top surface of the B magnet group is lower than the inner surface of the gasket, that is, the top surface of the B magnet group 15 is farther away from the diaphragm 18 than the inner surface of the gasket 16.

[0011] The thickness H4 of the A tuning piece is 2 / 3-3 / 4 of the thickness H2 of the membrane ring, the top surface of the A magnet group is higher than the inner surface of the A tuning piece, that is, the top surface of the A magnet group 21 is closer to the diaphragm 18 than the inner surface of the A tuning piece 35, and the top surface of the A magnet group is lower than the inner surface of the membrane ring, that is, the top surface of the A magnet group 21 is farther away from the diaphragm 18 than the inner surface of the membrane ring 19.

[0012] Further, in some embodiments, the A face coil is arranged between the membrane ring and the diaphragm, and the B face coil is arranged between the gasket and the diaphragm; the A face coil and the B face coil are arranged on the two surfaces of the diaphragm respectively, and the A face coil and the B face coil are matched and correspondingly arranged; the B face coil circuit and the A face coil circuit are connected in series.

[0013] Further, in some embodiments, the B magnet group and the B support are provided with a B magnetic concentrating sheet, the outer side of the B support away from the diaphragm is provided with a dustproof net, and the outer side of the dustproof net away from the diaphragm is provided with an outer shell.

[0014] Further, in some embodiments, the A magnet group and the A support are provided with an A magnetic concentrating sheet, the outer side of the A support away from the diaphragm is provided with a circuit board, one surface of the circuit board facing the diaphragm is provided with a spring guide column, and the outer side of the circuit board away from the diaphragm is provided with a tuning net.

[0015] The utility model discloses a tuning piece (filler) is arranged in the clearance area of loudspeaker diaphragm, and the tuning effect is realized by changing the volume of membrane inner cavity. By changing the volume of membrane inner cavity, the resonance frequency can be accurately adjusted, the sound curve is more smooth, unnecessary resonance peak is eliminated, and better auditory experience is brought to users. DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the embodiment of the application.

[0017] Figure 2 It is an assembly schematic diagram of the embodiment of the application.

[0018] Figure 3 Structure diagram of the tuning piece of the embodiment of the present application;

[0019] Figure 4 Position structure diagram of the tuning piece of the embodiment A of the present application;

[0020] Figure 5 Position structure diagram of the tuning piece of the embodiment B of the present application;

[0021] Figure 6 Structure diagram of the C1 part of the middle; Figure 1

[0022] Structure diagram of the C2 part of the middle; Figure 7 Figure 1 Structure diagram of the C2 part of the middle;

[0023] Figure 8 Audio curve comparison diagram.

[0024] Explanation of the reference signs:

[0025] Housing 11, dust screen 12, B support 13, B magnetic sheet 14, B magnet group 15, gasket 16, diaphragm 18, membrane ring 19, A magnet group 21, A magnetic sheet 22, A support 23, spring guide column 24, circuit board 26, tuning screen 27, A face coil 31, B face coil 32, A tuning piece 35, B tuning piece 36, opening 37. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will combine the specific embodiments of the present application and the corresponding drawings to make a clear and complete description of the technical scheme of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the present application.

[0027] In the description of the present application, it should be noted that the terms "transverse", "transverse", "upper", "lower", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.​

[0028] Referring to the drawings, the present application comprises a B support 13 and an A support 23, the B support 13 and the A support 23 are respectively arranged at two ends of a loudspeaker, a diaphragm 18 is arranged between the B support 13 and the A support 23, a gasket 16 is arranged on a side of the B support 13 facing the diaphragm 18, a B magnet group 15 is arranged in an inner cavity of the gasket 16, the B magnet group 15 is arranged on the B support 13, a spacing is arranged between an outer edge of the B magnet group 15 and an inner diameter edge of the gasket 16, a B tuning piece 36 is arranged in the spacing gap between the outer edge of the B magnet group 15 and the inner diameter edge of the gasket 16, an outer edge of the B tuning piece 36 is matched with an inner diameter of the gasket 16, the outer edge of the B tuning piece 36 is arranged adjacent to the inner diameter of the gasket 16, an opening 37 is arranged on the B tuning piece 36, and the B magnet group 15 is clamped in the opening 37.

[0029] The B tuning piece 36 is made of PORON, EVA, PET, foam, rubber or the like.

[0030] A diaphragm ring 19 is arranged on a side of the A support 23 facing the diaphragm 18, an A magnet group 21 is arranged in an inner cavity of the diaphragm ring 19, the A magnet group 21 is arranged on the A support 23, a spacing is arranged between an outer edge of the A magnet group 21 and an inner diameter edge of the diaphragm ring 19, an A tuning piece 35 is arranged in a spacing gap between the outer edge of the A magnet group 21 and the inner diameter edge of the diaphragm ring 19, an outer edge of the A tuning piece 35 is matched with an inner diameter of the diaphragm ring 19, the outer edge of the A tuning piece 35 is arranged adjacent to the inner diameter of the diaphragm ring 19, another opening 37 is arranged on the A tuning piece 35, and the A magnet group 21 is clamped in the opening 37 of the A tuning piece 35. The A tuning piece 35 can be made of PORON, EVA, PET, foam, rubber or the like.

[0031] The A tuning piece 35 and the B tuning piece 36 have the same shape.

[0032] Figure 1 The middle and lower parts are schematic diagrams of a C-C cross-sectional structure of the product; referring to Figure 6 , Figure 6 , Figure 1 The middle C1 part is a schematic diagram of a structure, a thickness H1 of the gasket 16 is greater than a thickness H3 of the B tuning piece 36, the thickness H3 of the B tuning piece 36 is 2 / 3-3 / 4 of the thickness H1 of the gasket 16, a top surface (inner surface) of the B magnet group 15 facing the diaphragm 18 is higher than an inner surface of the B tuning piece 36 (a top surface of the B tuning piece 36 facing the diaphragm 18), that is, the top surface of the B magnet group 15 facing the diaphragm 18 is closer to the diaphragm 18 than the inner surface of the B tuning piece 36, and the top surface of the B magnet group 15 facing the diaphragm 18 is lower than an inner surface of the gasket 16 (a top surface of the gasket 16 facing the diaphragm 18), that is, the top surface of the B magnet group 15 facing the diaphragm 18 is farther from the diaphragm 18 than the inner surface of the gasket 16.

[0033] Referring to Figure 7 as shown, Figure 7 for Figure 1 the structural diagram of the C2 part; the thickness H2 of the membrane ring 19 is greater than the thickness H4 of the A tuning piece 35, the thickness H4 of the A tuning piece 35 is 2 / 3-3 / 4 of the thickness H2 of the membrane ring 19, the top surface (inner surface) of the A magnet group 21 facing the diaphragm 18 is higher than the inner surface of the A tuning piece 35 (the A tuning piece 35 faces the top surface of the diaphragm 18), that is, the top surface of the A magnet group 21 facing the diaphragm 18 is closer to the diaphragm 18 than the inner surface of the A tuning piece 35; the top surface of the A magnet group 21 facing the diaphragm 18 is lower than the inner surface of the membrane ring 19 (the membrane ring 19 faces the top surface of the diaphragm 18), that is, the top surface of the A magnet group 21 facing the diaphragm 18 is farther away from the diaphragm 18 than the inner surface of the membrane ring 19.

[0034] The A surface coil 31 is arranged between the membrane ring 19 and the diaphragm 18, and the B surface coil 32 is arranged between the gasket 16 and the diaphragm 18; further, the A surface coil 31 and the B surface coil 32 are arranged on both sides of the diaphragm 18 respectively, and the A surface coil 31 and the B surface coil 32 are arranged in matching correspondence, and the B surface coil 32 is arranged in a vertical flip layout of the A surface coil 31.

[0035] The B surface coil 32 and the A surface coil 31 are arranged in corresponding connection after being vertically flipped, and the B surface coil 32 and the A surface coil 31 are connected in series.

[0036] Further, in one of the embodiments, the B magnet group 15 and the B support 13 are provided with the B magnetic concentrating sheet 14, the outer side of the B support 13 away from the diaphragm 18 is provided with the dustproof net 12, and the outer side of the dustproof net 12 away from the diaphragm 18 is provided with the shell 11.

[0037] Further, in one of the embodiments, the A magnet group 21 and the A support 23 are provided with the A magnetic concentrating sheet 22, the outer side of the A support 23 away from the diaphragm 18 is provided with the circuit board 26, one side of the circuit board 26 facing the diaphragm 18 is provided with the spring guide column 24, and the outer side of the circuit board 26 away from the diaphragm 18 is provided with the tuning net 27.

[0038] The tuning piece fills in the remaining space of the outer edge of the magnet group to the inner diameter edge of the gasket (and / or the membrane ring), the outer edge of the tuning piece matches the shape of the inner diameter of the gasket (and / or the membrane ring), the volume of the membrane cavity or the air flow pressure of the membrane vibration is changed, the product curve (the finished earphone audio curve) is smoother, and the resonance peak is reduced.

[0039] Referring to the accompanying Figure 8 , the accompanying Figure 8 is an audio curve comparison diagram:

[0040] E1: the audio curve of the present application;

[0041] E2: audio curve without tuning piece; E1 audio curve is smoother than E2 audio curve, eliminating unnecessary resonance peaks.

[0042] The material of the tuning piece can be PORON, EVA, PET, foam, rubber, etc.

[0043] The tuning piece changes the volume between the gasket (and / or the membrane ring) and the support, changes the air flow pressure, adjusts the vibration resistance of the diaphragm (the vibrating diaphragm 18), suppresses the segmented vibration, optimizes the driving uniformity, reduces the resonance peaks, makes the headphone curve peak and valley small and the overall more smooth, and makes the sound quality clarity and restoration better.

[0044] The above detailed description includes reference to the accompanying drawings, which form a part of the detailed description. The drawings illustrate particular embodiments in which the disclosure can be practiced by way of illustration. These embodiments are also referred to herein as "examples." Other elements besides those specifically described can exist. The person of ordinary skill in the art, without having benefit of the present disclosure, is not to be judged overly restrictive by the elements specifically mentioned in the examples, but can use any elements in any combination or arrangement, as the person of ordinary skill in the art having benefit of the present disclosure would understand upon reading the detailed description.

Claims

1. A diaphragm loudspeaker with a tuning element, comprising: B bracket (13) and A bracket (23) are respectively located at both ends of the speaker, and a diaphragm (18) is provided between B bracket (13) and A bracket (23); The feature is that the side of the B bracket (13) facing the diaphragm (18) is provided with a pad (16), the inner cavity of the pad (16) is provided with a B magnet assembly (15), the B magnet assembly (15) is disposed on the B bracket (13), there is a gap between the outer edge of the B magnet assembly (15) and the inner diameter edge of the pad (16), and a B tuning element (36) is provided in the gap between the outer edge of the B magnet assembly (15) and the inner diameter edge of the pad (16), and the outer edge of the B tuning element (36) matches the shape of the inner diameter of the pad (16); The outer edge of the B tuning component (36) is close to the inner diameter of the pad (16). The B tuning component (36) has a through opening (37), and the B magnet assembly (15) is inserted into the opening (37). The thickness H1 of the gasket (16) is greater than the thickness H3 of the B tuning piece (36).

2. A diaphragm speaker with a tuning element according to claim 1, characterized in that, The A bracket (23) has a diaphragm ring (19) on the side facing the diaphragm (18). The inner cavity of the diaphragm ring (19) is provided with an A magnet assembly (21). The A magnet assembly (21) is set on the A bracket (23). There is a gap between the outer edge of the A magnet assembly (21) and the inner diameter edge of the diaphragm ring (19). The A tuning element (35) is provided in the gap between the outer edge of the A magnet assembly (21) and the inner diameter edge of the diaphragm ring (19). The outer edge of tuner A (35) matches the inner diameter of diaphragm ring (19) in shape. The outer edge of tuner A (35) is closely adjacent to the inner diameter of diaphragm ring (19). Tuner A (35) has another through opening (37). Magnet A (21) is inserted into the opening (37) of tuner A (35). The thickness H2 of the diaphragm ring (19) is greater than the thickness H4 of the A tuning element (35).

3. A diaphragm speaker with a tuning element according to claim 2, characterized in that, The A tuning component (35) and the B tuning component (36) have the same structure; The thickness H3 of the B tuning component (36) is 2 / 3 to 3 / 4 of the thickness H1 of the pad (16). The top surface of the B magnet assembly (15) facing the diaphragm (18) is higher than the inner surface of the B tuning component (36), and the top surface of the B magnet assembly (15) facing the diaphragm (18) is lower than the inner surface of the pad (16). The thickness H4 of tuner A (35) is 2 / 3 to 3 / 4 of the thickness H2 of diaphragm ring (19). The top surface of magnet A (21) facing diaphragm (18) is higher than the inner surface of tuner A (35), and the top surface of magnet A (21) facing diaphragm (18) is lower than the inner surface of diaphragm ring (19).

4. A diaphragm speaker with a tuning element according to claim 2, characterized in that, An A-side coil (31) is provided between the diaphragm ring (19) and the diaphragm (18), and a B-side coil (32) is provided between the gasket (16) and the diaphragm (18); The diaphragm (18) is provided with an A-side coil (31) and a B-side coil (32) on both sides respectively. The A-side coil (31) and the B-side coil (32) are matched and correspondingly set, and the circuit of the B-side coil (32) is connected in series with the circuit of the A-side coil (31).

5. A diaphragm speaker with a tuning element according to claim 1, characterized in that, A B-magnetic sheet (14) is provided between the B magnet group (15) and the B bracket (13). A dustproof net (12) is provided on the outer side of the B bracket (13) away from the diaphragm (18). A shell (11) is provided on the outer side of the dustproof net (12) away from the diaphragm (18).

6. A diaphragm speaker with a tuning element according to claim 2, characterized in that, A magnetic sheet (22) is provided between the A magnet group (21) and the A bracket (23). A circuit board (26) is provided on the outer side of the A bracket (23) away from the diaphragm (18). A spring guide post (24) is provided on the side of the circuit board (26) facing the diaphragm (18). A tuning mesh (27) is provided on the outer side of the circuit board (26) away from the diaphragm (18).

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