Loudspeaker assembly and loudspeaker equipment

Abstract

The embodiment of the utility model provides a loudspeaker assembly and loudspeaker equipment, and the loudspeaker assembly comprises two magnet groups which are oppositely arranged at an interval, and an opposite gap is formed between the two rows of opposite magnet groups; the at least one vibrating diaphragm is arranged in the opposite gap, and a conductive circuit is arranged on the vibrating diaphragm; each magnet group comprises a plurality of first-type magnet units and a plurality of second-type magnet units, and the plurality of magnet units are arranged in a radial manner and arranged in a Halbach array; the same poles of the first type of magnet units in the two magnet groups are arranged oppositely, and the magnetic pole direction of the second type of magnet units is parallel to the breadth of the vibrating diaphragm. According to the technical scheme provided by the invention, the arrangement mode of the plurality of magnet units in the magnet groups 1 arranged on the two sides of the vibrating diaphragm is the Halbach array, so that the magnetic field in the opposite gap can be enhanced, and the magnetic field on the outer side of the magnet groups can be weakened, and therefore, metals such as iron are not easy to be adsorbed on the outer sides of the magnet groups, and the safety of equipment is effectively improved; and the sound production quality of the sound production unit is better.

Description

Technical Field

[0001] This application relates to the technical field of speakers, and in particular to a speaker assembly and a speaker device. Background Art

[0002] With the continuous development of audio technology, a planar diaphragm speaker is popular among users because its high-frequency sound is more real and pure with less distortion. Its main principle is to place a planar diaphragm with a conductive circuit in a magnetic field, apply an audio current to the electrical circuit, and the conductive circuit is affected by the Ampere force in the magnetic field, thereby driving the planar diaphragm to vibrate and produce sound.

[0003] In the existing planar diaphragm speakers, the magnetic field generated by the magnetic component is usually unreasonable, and the magnetic field intensity at the planar diaphragm is weak, which is not conducive to driving the planar diaphragm to vibrate and produce sound. Since the sound quality of the planar diaphragm speaker is related to the magnetic field intensity, in order to obtain a strong enough magnetic field, engineering usually sets two magnets opposite to each other, and the planar diaphragm is arranged between the two magnets. Although this solution can meet the requirements of the planar diaphragm speaker for high magnetic field intensity, a high-intensity magnetic field will also be generated in the space outside the magnet, and this part of the magnetic field will be wasted and cannot be utilized. In addition, the anti-magnetic problem needs to be considered in the design of the speaker body. Summary of the Invention

[0004] In view of the above problems, this application is proposed to provide a speaker assembly and a speaker device that solve the above problems.

[0005] In an embodiment of this application, a speaker assembly is provided, including:

[0006] Two sets of magnet groups, arranged opposite to each other at intervals, and an opposing gap is formed between two rows of the opposing magnet groups;

[0007] At least one diaphragm, arranged in the opposing gap, and a conductive circuit is provided on the diaphragm;

[0008] Wherein, each set of magnet groups includes a plurality of first-type magnet units and a plurality of second-type magnet units, and the plurality of first-type magnet units and the plurality of second-type magnet units are arranged in a radial pattern and in a Halbach array;

[0009] The first-type magnet units in the two sets of magnet groups are arranged with the same poles facing each other, and the magnetic pole directions of the second-type magnet units in the two sets of magnet groups are parallel to the plane of the diaphragm.

[0010] Optionally, the lengths of the same type of magnet units in the two sets of magnet groups are the same, and the plurality of magnet units are arranged in a radial pattern in an annular region;

[0011] The circular and / or annular diaphragm is disposed in the opposed gap.

[0012] Optionally, it further includes an elastic suspension assembly and a housing;

[0013] The magnet group is connected to the housing, and one end of the elastic suspension assembly is connected to the diaphragm, and the other end is connected to the magnet unit or the housing.

[0014] Optionally, it further includes a magnetic conductive member, and the magnetic conductive member is respectively provided on each magnet group;

[0015] The magnetic conductive member includes a plurality of magnetic conductive arms, the plurality of magnetic conductive arms converge and connect at the center of the magnet group, and the plurality of magnetic conductive arms are respectively in contact connection with the first type of magnet unit.

[0016] Optionally, the conductive circuit includes an inner ring circuit and an outer ring circuit;

[0017] The diaphragm has a first circuit setting area and a second circuit setting area. The first circuit setting area is the outer ring area of the diaphragm, and the second circuit is located inside the ring of the first circuit setting area;

[0018] The outer ring circuit is disposed in the first circuit setting area, and the inner ring circuit is disposed in the second circuit setting area.

[0019] Optionally, based on the projection diagram of the first type of magnet unit on the diaphragm, the conductive circuit is arranged in sequence around the projection diagram of each first type of magnet unit.

[0020] Optionally, the conductive circuit is disposed on the front surface of the diaphragm, or the conductive circuit is provided on both the front and back surfaces of the diaphragm;

[0021] When the circuits are provided on both the front and back surfaces of the diaphragm, the circuit on the front surface and the circuit on the back surface are in parallel or in series;

[0022] The conductive circuit includes at least one conductive line.

[0023] Optionally, the diaphragm includes an intermediate layer and a metal thin film, the metal thin film is disposed on the intermediate layer, and the conductive circuit is formed on the metal thin film.

[0024] Optionally, the diaphragm further includes a rib structure, and the rib structure is disposed on the diaphragm.

[0025] In another embodiment of the present application, a loudspeaker device is further provided, including a device body and the loudspeaker assembly as described above;

[0026] The device body has a receiving cavity, and the speaker assembly is disposed in the receiving cavity.

[0027] Optionally, when multiple diaphragms arranged in parallel at intervals are included in the speaker assembly;

[0028] An sound outlet hole is provided on the device body, and the sound outlet hole is arranged facing the back space area of the two diaphragms.

[0029] In the technical solution provided by the embodiment of the present application, the arrangement mode of multiple magnet units in the magnet group 1 arranged on both sides of the diaphragm is a Halbach array, which can not only strengthen the magnetic field in the opposing gap, but also weaken the magnetic field outside the magnet group, so that it is not easy to adsorb metals such as iron outside the magnet group, effectively improving the safety of the device, and also making the sound quality of the sounding unit better. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a schematic diagram of the opposing magnet magnetic field provided by the embodiment of the present application;

[0032] Figure 2 It is a perspective view of a speaker assembly provided by the embodiment of the present application;

[0033] Figure 3a It is another perspective view of a speaker assembly provided by the embodiment of the present application;

[0034] Figure 3b It is a cross-sectional view of another speaker assembly provided by the embodiment of the present application;

[0035] Figure 4 It is another perspective view of a speaker assembly provided by the embodiment of the present application;

[0036] Figure 5 It is a front view of a speaker assembly provided by the embodiment of the present application;

[0037] Figure 6 It is a front view of a diaphragm provided by the embodiment of the present application;

[0038] Figure 7 It is a back view of a diaphragm provided by the embodiment of the present application;

[0039] Figure 8The front view of a diaphragm provided by an embodiment of the present application;

[0040] Figure 9 The half-sectional view of a loudspeaker device provided by an embodiment of the present application. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application. The term "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve the technical problems within a certain error range and basically achieve the technical effects. In addition, in the embodiments of the present application, "a plurality of" means two or more. Without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0042] The sound quality of a planar diaphragm speaker is highly correlated with the magnetic field strength at the diaphragm. When the diaphragm is in a high-strength magnetic field environment, the diaphragm can not only emit a louder sound, but also has better sound quality. To obtain a higher magnetic field strength, refer to Figure 1 , usually two magnets are arranged in a way that the like poles are opposite to each other. There is an opposed gap (region A) formed between the two magnets, and the magnetic field strength in the opposed gap will be significantly increased. Although this method can meet the requirements of the diaphragm for a high magnetic field strength. However, since each magnet usually has two poles, there is always a magnetic field on both sides (region B) of the magnet pair. This magnetic field not only cannot be effectively utilized, but also will cause a short circuit with the effective magnetic field in region A, reducing the magnetic field strength at region A. In addition, the magnetic field in region B is also likely to adsorb metals such as iron, cobalt, and nickel. Specifically, in a sound device, the opposed magnets are usually arranged in a housing with a receiving cavity. When the cabinet is small, the magnetic fields in regions B on both sides of the magnet pair will make a part of the space outside the housing also within the magnetic field range of region B. If at this time, metals such as iron, cobalt, and nickel approach the housing, these materials will be easily adsorbed outside the housing. The strong magnetic attraction force is not only likely to damage the sound device, but also likely to cause injury to the user. If the volume of the cabinet, where every inch of space is precious, is increased for this reason, it is not cost-effective.

[0043] To avoid the generation of excessive strong magnetic fields on the outer sides of a pair of opposed magnets and solve the above problems, the present application provides a speaker assembly and a speaker device.

[0044] Figure 2 A perspective view of a speaker assembly provided by an embodiment of the present application; Figure 3a A perspective view of another speaker assembly provided by an embodiment of the present application; see Figure 2 and Figure 3a In an embodiment of the present application, a speaker assembly is provided. The speaker assembly includes two sets of magnet groups 1 and at least one diaphragm 2. The two sets of magnet groups 1 are arranged opposite to each other at intervals, and an opposing gap is formed between the two rows of magnet groups 1 arranged opposite to each other. Specifically, the first magnet group 1 is disposed on a first plane, the second magnet group 1 is disposed on a second plane, and the first plane and the second plane are parallel and spaced apart from each other, thereby forming an opposing gap. At least one diaphragm 2 is disposed in the opposing gap, and a conductive circuit 7 is provided on the diaphragm 2. Two magnet groups 1 arranged opposite to each other can form a strong magnetic field in the opposing gap. After the conductive circuit 7 on the diaphragm 2 is energized, the conductive circuit 7 can be subjected to a force in the magnetic field, driving the entire diaphragm 2 to vibrate and generate sound.

[0045] Further, each set of magnet groups 1 includes a plurality of first-type magnet units 11 and a plurality of second-type magnet units 12. The plurality of first-type magnet units 11 and the plurality of second-type magnet units 12 in each set of magnet groups 1 are arranged in a radial pattern and in a Halbach array.

[0046] The first-type magnet units 11 in different magnet groups 1 are arranged with the same poles facing each other, and the magnetic pole directions of the second-type magnet units 12 in different magnet groups 1 are parallel to the plane of the diaphragm 2. Specifically, the first-type magnet units 11 in the first magnet group and the first-type magnet units 11 in the second magnet group are located on different planes respectively. The first-type magnet units 11 in different magnet groups 1 are arranged with the same poles facing each other. The two second-type magnet units 12 in different magnet groups 1 are arranged opposite to each other, but their magnetic field directions are the same, and the internal magnetic field directions of all the second-type magnet units 12 are parallel to the plane of the diaphragm 2.

[0047] See Figure 2 , a plurality of magnet units (including the first-type magnet units 11 and the second-type magnet units 12) can be arranged in a radial pattern along a circumferential direction (for example, Figure 2 in, the overall structure of the speaker assembly is generally cylindrical), or can be arranged in a radial pattern along an elliptical direction (that is, the overall structure of the speaker assembly is generally elliptical cylindrical, and its cross-section is elliptical). Each magnet unit includes an N pole and an S pole. The arrangement of the first-type magnet units with the same poles facing each other in different magnet groups 1 can be understood as: the opposite magnetic poles of the two first-type magnet units in different magnet groups 1 are the same. For example, the same poles N-N are arranged facing each other ( Figure 2 in the magnet 111a and the magnet 111b), or the same poles S-S are arranged facing each other ( Figure 2 in the magnet 112a and 112b).

[0048] In addition, since the magnet units in the two sets of magnet groups 1 are Halbach arrays, among the multiple magnet units, the magnetic pole directions of the magnet units (the magnetic field directions inside the magnets, as shown by the arrow directions in Figure 2 ), not only include the directions perpendicular to the opposing gap (such as the magnets 111a, 111b, 112a, 112b, etc. in Figure 2 ), but also include the directions parallel to the opposing gap (such as the magnets 121a, 122a, etc. in Figure 2 ). Compared with the design with a staggered change in the magnetic pole directions, the magnetic field on the side of each magnet group 1 facing the diaphragm 2 will be enhanced, and the magnetic field on the side facing away from the diaphragm 2 will be reduced. Therefore, in the technical solution provided by the embodiments of the present application, the arrangement of the multiple magnet units in the magnet groups 1 provided on both sides of the diaphragm 2 is a Halbach array, which can not only strengthen the magnetic field in the opposing gap, but also weaken the magnetic field outside the magnet groups 1, so that it is not easy to adsorb metals such as iron outside the magnet groups 1, effectively improving the safety of the device, and also making the sound quality of the sound generating unit better.

[0049] Furthermore, the same type of magnet units in the two sets of magnet groups 1 have the same size, and the sizes of different types of magnet units can be the same or different. The multiple magnet units are arranged radially in an annular region. Specifically, the lengths, widths, and heights of different types of magnet units can be the same or different; specifically, the lengths, widths, and heights of the first type of magnet unit 11 and the second type of magnet unit 12 can be the same or different. For example, when the lengths, widths, and heights of the first type of magnet unit 11 and the second type of magnet unit 12 are the same, it can be considered that the lengths, widths, and heights of all magnet units are the same, and the structural sizes of all magnet units are the same. Another example is that when the lengths, widths, and / or heights of the first type of magnet unit 11 and the second type of magnet unit 12 are different, the lengths, widths, and / or heights of the first type of magnet unit 11 and the second type of magnet unit 12 in each magnet group 1 are different, but the sizes of all the first type of magnet units 11 in the two opposing magnet groups 1 are the same, and the sizes of all the second type of magnet units 12 in the two opposing magnet groups 1 are the same.

[0050] Furthermore, the multiple magnet units are arranged circularly in a planar region, and the angles between different magnet units are the same. In the technical solution of the present application, the diaphragm 2 can be circular or annular. In a specific embodiment, referring to Figure 3a , taking the diaphragm 2 as circular as an example. The circular diaphragm 2 is arranged in the opposing gap. The diameter of the diaphragm 2 can be the same as or different from the diameter of the arrangement region of the magnet groups 1, and can be set according to the actual situation. The center of the diaphragm 2 and the center of the circular arrangement of the magnet groups 1 are on the same axis.

[0051] Referring to Figure 3a, since most of the area of the diaphragm 2 is suspended in the opposed gap, to facilitate the fixation of the diaphragm 2, in an embodiment provided by the present application, the speaker assembly further includes an elastic suspension assembly 3. One end of the elastic suspension assembly 3 is connected to the diaphragm 2, and the other end is connected to the magnet unit. For example, the elastic suspension assembly 3 includes a connection structure 31 and an elastic member. The cylindrical connection structure 31 is respectively connected to different magnet groups 1, and the diaphragm 2 is connected to the outer wall of the connection structure 31. An annular elastic strip is provided between the diaphragm 2 and the connection structure 31.

[0052] See Figure 4 , the speaker assembly further includes an elastic suspension assembly 3 and a housing 4. The elastic suspension assembly 3 includes an elastic member. The magnet group 1 is connected to the housing 4. One end of the elastic suspension assembly 3 is connected to the diaphragm 2, and the other end is connected to the magnet unit or the housing 4. Usually, the magnet unit (including the first type of magnet unit 11 and the second type of magnet unit 12) is usually fixedly connected to the housing 4, which is equivalent to the diaphragm 2 being indirectly connected to the housing 4. Thus, the diaphragm 2 can be stably disposed in the opposed gap, and the diaphragm 2 can also be timely reset to the middle position of the opposed gap after vibration. The elastic suspension assembly 3 includes but is not limited to: springs, elastic ropes, elastic brackets, elastic strips, etc.

[0053] Taking the elastic member as an elastic strip as an example, see Figure 4 , the elastic strip is an annular structure, which is disposed around the diaphragm 2. The inner ring edge of the elastic strip is disposed on the outer edge of the diaphragm 2, and the outer ring edge of the elastic strip is connected to the housing 4. When the diaphragm 2 vibrates, the elastic strip can be stretched to adapt to the vibration of the diaphragm 2. The elastic strip includes but is not limited to: rubber strips, silicone strips, etc.

[0054] In another embodiment, see Figure 3b, a speaker assembly includes two housings 4 which are arranged opposite to each other at an interval. A magnet group 1 is provided in an annular region near the edge of the housing 4. Each magnet group 1 includes a plurality of first magnet units 11 and a plurality of second magnet units 12, and the arrangement of the magnet units is the same as that in other embodiments above. Corresponding to the setting position of the magnet units, a diaphragm 2 is provided between the two sets of magnet units. The diaphragm 2 is annular, and elastic suspension components 3 are provided at both the inner ring edge and the outer ring edge of the annular diaphragm 2. The elastic suspension components 3 are connected to one of the housings 4. The elastic suspension components 3 can be elastic strips, and the elastic strips can support the diaphragm 2 between the two sets of opposed magnet units. When the diaphragm 2 vibrates up and down, the elastic strips will be stretched or compressed, and the diaphragm 2 can realize vibration and sound production. To facilitate the sound emitted by the diaphragm to be conducted to the external environment, in one possible way, a plurality of sound transmission holes 15 are further provided on the housing 4, and the sound transmission holes 15 are provided between two adjacent magnet units. Another realizable way is that no sound transmission holes 15 are provided on the top surface of the housing 4, and the sound is emitted from the side of the sound generating unit. Specifically, the sound emitted by the annular diaphragm 2 is transmitted through a relatively narrow side gap, which is equivalent to the gap being a linear sound source of a structure. At this time, the listening effects at different heights at the same position are the same. In addition, due to the annular design, the listening effects are also the same when rotating around the cylindrical surface of the speaker at the same distance. In this way, a speaker with no difference in listening angles in all spatial directions is produced.

[0055] It should be noted that the housing 4 in the speaker assembly can also be regarded as the device body 100 of the speaker device, for example Figure 9 as shown. Figure 4 The structure in

[0056] See Figure 3a and Figure 4 , in an embodiment provided by the present application, the speaker assembly further includes a magnetic conduction member 5. A magnetic conduction member 5 is respectively provided on each magnet group 1, and the magnetic conduction member 5 is provided on the side of the magnet group 1 facing away from the diaphragm 2. The magnetic conduction member 5 is not connected to each magnet unit, but is connected to the first type of magnet unit 11 in the magnet group 1.

[0057] The function and effect of the magnetic conduction member 5 will be introduced in detail below. Generally, for a magnet, the magnetic field lines outside the magnet come out from the N pole and then return to the S pole. This phenomenon can be regarded as the short circuit of the self-magnetic induction lines of the N pole and the S pole of the magnet. In the technical solution of the present application, the diaphragm 2 is located in two sets of magnet groups 1 arranged oppositely, and the diaphragm 2 can effectively utilize the magnetic field in the opposed gap. However, there is also a magnetic field distribution outside the magnet group 1, and the self-magnetic induction lines of the first type of magnet unit 11 among them are prone to short circuit of the N pole and the S pole. For example, see Figure 3a, if there is no magnetic conduction member 5, part of the magnetic induction lines of the magnet 112b in the first type of magnet unit 11 easily return from the N pole to the S pole of the magnet 112b, causing a short circuit between the N pole and the S pole of its own magnetic induction lines. In this case, the magnetic field in the opposed gap will be affected.

[0058] After the magnetic conduction member 5 is provided, after the magnetic field lines of the magnet 112b come out from the N pole, they can return to the S pole of the magnet 111b under the action of the magnetic conduction member 5. In this way, multiple magnet units can still form a complete magnetic field closed loop and will not affect the magnetic field in the opposed gap. Therefore, in the technical solution of the present application, multiple magnetic conduction arms 51 on the magnetic conduction member 5 are respectively connected to different first type of magnet units 11, and adjacent magnetic conduction arms 51 (such as the first magnetic conduction arm 51a and the second magnetic conduction arm 51b) are respectively connected to different magnetic poles of the first type of magnet unit 11 (for example, the N pole of the magnet 112b and the S pole of the magnet 111b).

[0059] See Figure 3a , the magnetic conduction member 5 includes multiple magnetic conduction arms 51, and the multiple magnetic conduction arms 51 converge and are connected at the center of the magnet group 1 to form a circular part 52, and the circular part 52 is arranged corresponding to the middle area of the diaphragm 2.

[0060] See Figure 2 , Figure 3a and Figure 5 , in an embodiment provided by the present application, the conductive circuit 7 includes an inner ring circuit and an outer ring circuit, and the inner ring circuit and the outer ring circuit are different circuits respectively. The diaphragm 2 has a first circuit setting area and a second circuit setting area, the outer ring circuit is arranged in the first circuit setting area, and the inner ring circuit is arranged in the second circuit setting area.

[0061] When the annular area where multiple magnet units 11 are arranged corresponds to the projection on the diaphragm 2, the projection area can be regarded as the first circuit setting area on the diaphragm 2, for example Figure 5 the A area in Figure 5 the periphery of the circular dotted line in Figure 5 the B area in Figure 5 the circle of the circular dotted line in Figure 5 . Since multiple magnet units converge at the edge of the circular dotted line in , the ends of the magnet units will form an available magnetic field in the inner ring circuit setting area, and the inner ring circuit on the diaphragm 2 can make full use of this magnetic field to realize vibration and sound generation. The inner ring circuit on the diaphragm 2 can make full use of this magnetic field to vibrate and sound, which can not only effectively improve the volume level of the sound, but also improve the sound quality of the diaphragm 2. Among them, the outer ring circuit and the inner ring circuit are different circuits. For example, the outer ring circuit is an ordinary circuit element for sound production, and the inner ring circuit is a circuit element for high notes.

[0062] See Figure 2 、 Figure 3a 、 Figure 5 and Figure 6 , in an embodiment provided by the present application, each magnet group 1 includes a first type of magnet unit 11 and a second type of magnet unit 12. The magnetic pole direction of the first type of magnet unit 11 is perpendicular to the diaphragm 2 direction (such as magnet units 111a, 111b, 112a, 112b, etc.), and the magnetic pole direction of the second type of magnet unit 12 is parallel to the diaphragm 2 direction (such as magnet units 121a, 122a, etc.). Based on the projection diagram of the first type of magnet unit 11 on the diaphragm 2, the conductive circuit 7 is arranged in sequence around the projection diagram of each first type of magnet unit 11. Specifically, the outer ring circuit on the diaphragm 2 is arranged in sequence around the projection diagram of each first type of magnet unit 11 to form a disc-shaped circuit. For the winding method of the conductive circuit 7, the present application does not make specific limitations, as long as it can be arranged in sequence around the projection diagram of each first type of magnet unit 11 and make full use of the magnetic field formed by the first type of magnet unit 11, it is feasible.

[0063] See Figure 2 、 Figure 6 and Figure 7 , in an embodiment provided by the present application, the conductive circuit 7 is arranged on the front surface of the diaphragm 2, or the conductive circuit 7 is arranged on both the front and back surfaces of the diaphragm 2. When the conductive circuits are arranged on both the front and back surfaces of the diaphragm 2, the circuit on the front surface is connected in parallel or in series with the circuit on the back surface. In a specific embodiment, the conductive circuit 7 on the front surface of the diaphragm 2 is connected in series with the conductive circuit 7 on the back surface. Figure 6 Point a in can be considered as the starting point of the conductive circuit 7 on the front surface of the diaphragm 2. Figure 6 Point b in can be considered as the end point of the conductive circuit 7 on the front surface of the diaphragm 2. The conductive circuit 7 penetrates the diaphragm 2 from the central position of the diaphragm 2 and extends to the back surface of the diaphragm 2 and is connected to the conductive circuit 7 on the back surface. Figure 7 Point c in can be considered as the starting point of the conductive circuit 7 on the back surface of the diaphragm 2. Figure 7 Point d in can be considered as the end point of the conductive circuit 7 on the back surface of the diaphragm 2. The conductive circuit 7 at point b passes through the diaphragm 2 and is connected to the conductive circuit 7 at point c.

[0064] Furthermore, the conductive circuit 7 includes at least one conductive line. When the conductive circuit 7 includes multiple conductive lines, the multiple conductive lines are arranged at intervals, and the extending directions of the multiple conductive lines are the same.

[0065] For the convenience of the processing of the diaphragm 2 and to endow the diaphragm 2 with a certain strength. In an embodiment provided by the present application, the diaphragm 2 includes an intermediate layer and a metal thin film. The metal thin film is disposed on the intermediate layer, and a conductive circuit 7 is formed on the metal thin film. Specifically, when the conductive circuit 7 is provided on only one side of the diaphragm 2, the intermediate layer also has a metal thin film on one side. When the conductive circuit 7 is provided on both the front and back sides of the diaphragm 2, the front and back sides of the intermediate layer also have metal thin films. The metal thin film can be a conductive material such as an aluminum foil film, and the conductive circuit 7 will be insulated from other regions on the metal thin film. The conductive circuit 7 on the metal thin film can be processed by etching, laser engraving, etc.

[0066] In a specific embodiment, the diaphragm 2 is a multi-layer structure. Taking the diaphragm 2 as a three-layer structure as an example, the intermediate layer is an EVA (Ethylene Vinyl Acetate Copolymer) layer, which has a certain rigidity and toughness and can effectively support the diaphragm 2. On both sides of the EVA layer are metal layers such as aluminum foil. Usually, glue can be brushed on both sides of the EVA layer, and then the aluminum foil layer is bonded to the surface of the EVA layer. A circuit structure is formed on the surface of the aluminum foil layer. After power is applied to the circuit structure, the entire diaphragm 2 can be driven to vibrate. The present application does not specifically limit the specific material of the intermediate layer of the diaphragm 2. As long as the material of the intermediate layer has a certain rigidity and toughness, it can meet the technical solution of the present application. For example, the materials of the intermediate layer include but are not limited to: plastic thin plates, thin wood boards, carbon fiber thin plates, cardboard, metal thin plates, polymer material plates, composite material plates, fiberglass double-sided adhesive tapes, etc.

[0067] As mentioned above, a diaphragm 2 has a first circuit setting area and a second circuit setting area. The first circuit setting area is the area corresponding to the magnet unit (such as Figure 5 area A in Figure 5Region B). This is the case where the diaphragm 2 is a complete structure. Of course, corresponding to the first circuit setting area and the second circuit setting area, the diaphragm 2 can also be composed of multiple different diaphragms. Specifically, in an embodiment provided by the present application, when the conductive circuit 7 on the diaphragm 2 includes an inner ring circuit and an outer ring circuit, the diaphragm 2 can be divided into two diaphragms, that is, an outer ring diaphragm corresponding to the first circuit setting area and an inner ring diaphragm corresponding to the second circuit setting area, and the two diaphragms are independent of each other. When the speaker assembly vibrates to produce sound, the inner ring diaphragm and the outer ring diaphragm work together to achieve the complete sound production of the speaker assembly. The inner ring circuit is arranged on the inner ring diaphragm and the outer ring circuit is arranged on the outer ring diaphragm, and the hardness or material of the two diaphragms is different. Since the inner ring circuit setting area and the outer ring circuit setting area are respectively used to generate sounds of different frequency bands. For example, the inner ring circuit setting area is usually used for high-pitched sound production, and the outer ring circuit setting area is used for the production of ordinary audio. Therefore, the inner ring diaphragm of the diaphragm 2 provided with the inner ring circuit is usually relatively thinner and lighter.

[0068] See Figure 9 , in an embodiment of the present application, a speaker device is further provided. The speaker device includes a device body 100 and the above-mentioned speaker assembly. The device body 100 has a receiving cavity, and the speaker assembly is arranged in the receiving cavity. The speaker assembly can be fixedly arranged in the receiving cavity or detachably arranged in the receiving cavity. In order to adapt to various usage scenarios, the cross-sectional shape of the sound body includes but is not limited to: circular, square, oval, polygon, etc.

[0069] In summary, in the technical solution provided by the embodiment of the present application, by arranging the diaphragm in two sets of opposed magnet groups, the diaphragm can vibrate and produce sound by utilizing the magnetic field of the magnet groups. Since the magnet groups are Halbach array magnet groups, not only can the magnetic field in the opposed gap be strengthened, but also the magnetic field outside the magnet groups can be weakened, so that it is not easy to adsorb metals such as iron on the outside of the magnet groups, effectively improving the safety of the device, and also making the sound quality of the sound-producing unit better.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A loudspeaker assembly, characterized in that, Comprising: Two sets of magnet groups, which are arranged opposite to each other with an interval therebetween, and an opposing gap is formed between two rows of the magnet groups that are opposite to each other; At least one diaphragm, which is arranged in the opposing gap, and a conductive circuit is provided on the diaphragm; Wherein, each set of the magnet groups includes a plurality of first-type magnet units and a plurality of second-type magnet units, and the plurality of first-type magnet units and the plurality of second-type magnet units are arranged in a radial pattern and in a Halbach array; The first-type magnet units in the two sets of magnet groups are arranged with the same poles opposing each other, and the magnetic pole directions of the second-type magnet units in the two sets of magnet groups are parallel to the plane of the diaphragm.

2. The loudspeaker assembly according to claim 1, wherein The lengths of the same-type magnet units in the two sets of magnet groups are the same, and the plurality of magnet units are arranged in a radial pattern within an annular region; The circular and / or annular diaphragm is arranged in the opposing gap.

3. The loudspeaker assembly according to claim 2, characterized in that, It further includes an elastic suspension assembly and a housing; The magnet group is connected to the housing, one end of the elastic suspension assembly is connected to the diaphragm, and the other end is connected to the magnet unit or the housing.

4. The loudspeaker assembly according to any one of claims 1 to 3, characterized in that It further includes a magnetic conduction member, and the magnetic conduction member is provided on each of the magnet groups; The magnetic conduction member includes a plurality of magnetic conduction arms, the plurality of magnetic conduction arms converge and connect at the center of the magnet group, and the plurality of magnetic conduction arms are respectively in contact connection with the first-type magnet units.

5. The loudspeaker assembly according to claim 4, wherein, The conductive circuit includes an inner ring circuit and an outer ring circuit; The diaphragm has a first circuit setting area and a second circuit setting area, the first circuit setting area is the outer ring area of the diaphragm, and the second circuit is arranged within the ring of the first circuit setting area; The outer ring circuit is arranged in the first circuit setting area, and the inner ring circuit is arranged in the second circuit setting area.

6. The loudspeaker assembly according to claim 1, wherein Based on the projection diagram of the first-type magnet units on the diaphragm, the conductive circuit is arranged in sequence surrounding the projection diagrams of each of the first-type magnet units.

7. The loudspeaker assembly according to claim 6, wherein, The conductive circuit is arranged on the front surface of the diaphragm, or the conductive circuit is provided on both the front and back surfaces of the diaphragm; When the conductive circuit is provided on both the front and back surfaces of the diaphragm, the circuit on the front surface and the circuit on the back surface are connected in parallel or in series; The conductive circuit includes at least one conductive line.

8. The loudspeaker assembly according to claim 1, wherein The diaphragm includes an intermediate layer and a metal thin film, the metal thin film is arranged on the intermediate layer, and the conductive circuit is formed on the metal thin film.

9. The loudspeaker assembly according to claim 1, wherein, The diaphragm further includes a rib structure, and the rib structure is arranged on the diaphragm.

10. A loudspeaker device, characterized in that, Comprising an equipment body and a speaker assembly according to any one of claims 1 to 9; The equipment body has a receiving cavity, and the speaker assembly is arranged in the receiving cavity.

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