Loudspeaker and electronic equipment

Abstract

The invention relates to a loudspeaker and electronic equipment, the loudspeaker comprises a diaphragm assembly, a first magnetic assembly and a second magnetic assembly, the first magnetic assembly and the second magnetic assembly are respectively arranged at two sides of the diaphragm assembly, the first magnetic assembly comprises a first magnetic conductive member and a first magnet, the first magnetic conductive member is provided with a first sound hole, and the first magnet is provided with a second sound hole. The first magnet is installed on the first magnetic conductive piece, a first magnetic circuit gap is formed between the first magnet and the first magnetic conductive piece, the second magnetic assembly forms a second magnetic circuit gap coaxial with the first magnetic circuit gap, and at least part of the area, directly facing the vibrating diaphragm assembly, of the second magnetic circuit gap coincides with the area, directly facing the vibrating diaphragm assembly, of the first magnetic circuit gap. According to the loudspeaker and the electronic equipment, the first magnetic assembly and the second magnetic assembly are utilized to restrain the magnetic lines of force in the vibration area of the vibrating diaphragm assembly, so that the working probability of the vibrating diaphragm assembly in the non-uniform area of the magnetic field is reduced, and the sound quality is improved; and the cost is reduced due to the structure.

Description

Technical Field

[0001] The present application relates to the technical field of loudspeakers, and in particular to loudspeakers and electronic devices. Background Art

[0002] Speakers are a very common electroacoustic transducer and are widely used in electronic devices such as headphones, mobile phones, tablets, smart watches, etc.

[0003] A loudspeaker usually includes a magnetic circuit, a voice coil and a diaphragm. The voice coil moves in the magnetic field provided by the magnetic circuit under the action of alternating current to drive the diaphragm to vibrate and produce sound. The magnetic field of the loudspeaker's magnetic circuit itself has uniform and non-uniform areas. When the voice coil moves in the uniform area of ​​the magnetic field, the loudspeaker can be guaranteed to be in a low-distortion state. Once the displacement of the voice coil exceeds the uniform area of ​​the magnetic field, nonlinear distortion will occur.

[0004] However, there is a serious magnetic leakage phenomenon in the speakers of the related art, and the uniform area of ​​the magnetic field is small. The voice coil is easy to exceed the uniform area of ​​the magnetic field and cause nonlinear distortion, which affects the sound quality. For this reason, the related art usually widens the uniform area of ​​the magnetic field by configuring more magnets, but increasing the number of magnets will increase the cost. Summary of the invention

[0005] The present application provides a loudspeaker and an electronic device to solve the technical problem of how to reduce the probability of a diaphragm assembly working in a non-uniform region of a magnetic field so as to improve the sound quality while reducing the cost.

[0006] In one aspect, the present application provides a speaker, comprising:

[0007] Diaphragm assembly;

[0008] a first magnetic component, located at one side of the diaphragm component, the first magnetic component comprising a first magnetic conductive member and a first magnet, the first magnetic conductive member having a first sound outlet hole, the first magnet being mounted on the first magnetic conductive member, the first magnet being an annular magnet, the center hole of the first magnet being coaxial with the first sound outlet hole, a first magnetic circuit gap being formed between the first magnet and the first magnetic conductive member, and the first magnetic circuit gap being arranged around the first sound outlet hole;

[0009] The second magnetic component is located on the side of the diaphragm component facing away from the first magnetic component, and the second magnetic component forms a second magnetic circuit gap. The second magnetic circuit gap is coaxial with the first magnetic circuit gap, and the area of ​​the second magnetic circuit gap facing the diaphragm component at least partially overlaps with the area of ​​the first magnetic circuit gap facing the diaphragm component.

[0010] On the other hand, the electronic device includes a control circuit board and the above-mentioned speaker, wherein the control circuit board is electrically connected to the speaker and is used to control the speaker.

[0011] The speaker and electronic device of the present application, the speaker includes a diaphragm assembly, a first magnetic assembly and a second magnetic assembly, the first magnetic assembly and the second magnetic assembly are respectively arranged on both sides of the diaphragm assembly, and a first magnetic circuit gap is formed between the first magnetic conductive part and the first magnet of the first magnetic assembly, the first magnetic circuit gap is arranged around the first sound outlet, and a second magnetic circuit gap coaxial with the first magnetic circuit gap is formed in the second magnetic assembly, the area of ​​the second magnetic circuit gap facing the diaphragm assembly at least partially overlaps with the area of ​​the first magnetic circuit gap facing the diaphragm assembly, thereby confining the magnetic lines of force to the vibration area of ​​the diaphragm assembly, reducing leakage magnetic flux while improving the uniformity of the magnetic field in which the diaphragm assembly is located, thereby reducing the probability of the diaphragm assembly working in the non-uniform area of ​​the magnetic field, so as to achieve the effect of improving the sound quality; since the first magnetic circuit gap is formed between the first magnetic conductive part and the first magnet, the first magnetic conductive part and the first magnet are used to form a magnetic circuit, and the magnetic lines of force can be constrained to the vibration area of ​​the diaphragm assembly without adding magnets, which is conducive to reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application 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 of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 A schematic cross-sectional structure diagram of a loudspeaker provided in one embodiment.

[0014] Figure 2 for Figure 1 A schematic diagram of the magnetic field line distribution of the magnetic circuit in the loudspeaker is shown.

[0015] Figure 3 A schematic cross-sectional structure diagram of a loudspeaker provided in another embodiment.

[0016] Figure 4 for Figure 3 A schematic diagram of the magnetic field line distribution of the magnetic circuit in the loudspeaker is shown.

[0017] Figure 5 A schematic cross-sectional structure diagram of a loudspeaker provided in yet another embodiment.

[0018] Figure 6 A schematic cross-sectional structure diagram of a loudspeaker provided in yet another embodiment.

[0019] Figure 7 for Figure 6 A schematic diagram of the magnetic field line distribution of the magnetic circuit in the loudspeaker is shown.

[0020] Figure 8 Another structural schematic diagram of the speaker in the implementation manner of the present application.

[0021] Fig. 9 This is another structural schematic diagram of the speaker in the implementation manner of the present application.

[0022] Fig.10 This is another structural schematic diagram of the speaker in the implementation manner of the present application.

[0023] Fig.11 It is a schematic structural diagram of a diaphragm assembly of a loudspeaker in one embodiment.

[0024] Fig.12 A circuit module block diagram of an electronic device according to an embodiment.

[0025] Description of Figure Numbers:

[0026] 10. Speaker; 10a. Shell; 11. Diaphragm assembly; 111. Diaphragm; 112. First coil; 113. Second coil; 12. First magnetic assembly; 12a. First magnetic circuit gap; 12b. First sound outlet; 121. First magnetic conductive member; 121a. First U iron; 121b. First T iron; 122. First magnet; 13. Second magnetic assembly; 13a. Second magnetic circuit gap; 13b. Second sound outlet; 131. Second magnetic conductive member; C. Mounting surface; 131a. Magnetic conductive plate; 131b. Second U iron; 131c. Second T iron; 132. Second magnet; 133. Third magnet. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0028] As used herein, "electronic device" refers to a device that can receive and / or send communication signals, including but not limited to a device that is connected via any one or more of the following connection methods:

[0029] (1) Connection via wired lines, such as Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection;

[0030] (2) Via wireless interfaces, such as cellular networks, wireless local area networks (WLAN), digital television networks such as DVB-H networks, satellite networks, and AM-FM broadcast transmitters.

[0031] An electronic device configured to communicate via a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

[0032] (1) Satellite phone or cellular phone;

[0033] (2) Personal Communications System (PCS) terminals that can combine cellular radio telephones with data processing, fax, and data communications capabilities;

[0034] (3) Radiotelephone, pager, Internet / intranet access, Web browser, notepad, calendar, Personal Digital Assistant (PDA) equipped with a Global Positioning System (GPS) receiver;

[0035] (4) conventional laptop and / or palmtop receivers;

[0036] (5) Conventional laptop and / or palmtop radio telephone transceivers, etc.

[0037] Combination Figure 1 As shown, a speaker 10 provided in one embodiment of the present application can be used in electronic devices, including but not limited to headphones, mobile phones, tablet computers, laptops, wearable devices, televisions, etc.

[0038] The loudspeaker 10 includes a diaphragm assembly 11, a first magnetic assembly 12, and a second magnetic assembly 13. The diaphragm assembly 11 is a flat structure, that is, a sheet structure. The first magnetic assembly 12 and the second magnetic assembly 13 are respectively arranged on both sides of the diaphragm assembly 11. Specifically, the first magnetic assembly 12 is located on one side of the diaphragm assembly 11, and the second magnetic assembly 13 is located on the side of the diaphragm assembly 11 that is away from the first magnetic assembly 12. In this way, the first magnetic assembly 12 and the second magnetic assembly 13 jointly construct a magnetic field environment for the vibration of the diaphragm assembly 11.

[0039] The first magnetic component 12 includes a first magnetic conductive member 121 and a first magnet 122. The first magnetic conductive member 121 has a first sound outlet 12b, and the first magnet 122 is installed on the first magnetic conductive member 121. The first magnet 122 is an annular magnet, and the center hole of the first magnet 122 is coaxial with the first sound outlet 12b. A first magnetic circuit gap 12a is formed between the first magnet 122 and the first magnetic conductive member 121, and the first magnetic circuit gap 12a is arranged around the first sound outlet 12b. It can be understood that since the first magnet 122 is an annular magnet and the center hole of the first magnet 122 is coaxial with the first sound outlet 12b, the magnetic field in the magnetic circuit with the first magnetic circuit gap 12a formed by the first magnetic conductive member 121 and the first magnet 122 is constrained to the vibration area of ​​the diaphragm assembly 11 as a whole, and the sound emitted by the vibration of the diaphragm assembly 11 is better transmitted by using the first sound outlet 12b.

[0040] In this embodiment, the second magnetic component 13 is formed with a second magnetic circuit gap 13a, and the second magnetic circuit gap 13a is coaxial with the first magnetic circuit gap 12a. The area of ​​the second magnetic circuit gap 13a facing the diaphragm component 11 at least partially overlaps with the area of ​​the first magnetic circuit gap 12a facing the diaphragm component 11, thereby constraining the magnetic lines of force to the vibration area of ​​the diaphragm component 11, reducing leakage magnetic flux while improving the uniformity of the magnetic field in which the diaphragm component 11 is located, and reducing the probability of the diaphragm component 11 working in the non-uniform area of ​​the magnetic field, so as to achieve the effect of improving the sound quality. Since the first magnetic circuit gap 12a is formed between the first magnetic conductive member 121 and the first magnet 122, the first magnetic conductive member 121 and the first magnet 122 are used to form a magnetic circuit, and the magnetic lines of force can be constrained to the vibration area of ​​the diaphragm component 11 without adding magnets, which is conducive to reducing costs.

[0041] It should be noted that a movable space for the vibration of the diaphragm assembly 11 is formed between the second magnetic assembly 13 and the first magnetic assembly 12 at the position corresponding to the diaphragm assembly 11, so as to avoid the diaphragm assembly 11 from hitting the first magnetic assembly 12 and the second magnetic assembly 13 when vibrating. The first magnetic assembly 12 and the second magnetic assembly 13 can be relatively fixed through the base or shell 10a, so that the edge of the diaphragm assembly 11 is fixed between the first magnetic assembly 12 and the second magnetic assembly 13. The specific fixing method between the first magnetic assembly 12 and the second magnetic assembly 13 and the base or shell 10a can be glue connection or screw connection, which is not limited here. The spacing between the first magnetic assembly 12 and the second magnetic assembly 13 (that is, the spacing between the relative surfaces of the two) can be set according to the amplitude of the vibration of the diaphragm assembly 11, as long as the vibration stroke requirements of the diaphragm assembly 11 are met. Specifically, it can be 2mm to 5mm, for example, the spacing between the first magnetic assembly 12 and the second magnetic assembly 13 is 2mm, 3mm, 4mm or 5mm. The size of the spacing between the first magnetic assembly 12 and the second magnetic assembly 13 is not limited here.

[0042] The first magnetic circuit gap 12a can be filled with a filler (not shown) to fill the first magnetic circuit gap so that the side walls of the first magnetic conductive member 121 and the first magnet 122 facing each other maintain a gap to avoid looseness between them. The filler is spaced apart from the diaphragm assembly 11 so as not to interfere with the vibration of the diaphragm assembly 11.

[0043] In some embodiments, the filler may be pre-set on the first magnetic conductive member 121, or may be pre-set on the first magnet 122. When the first magnetic conductive member 121 and the first magnet 122 are assembled, the filler may have a buffering effect, reducing the probability that the first magnet 122 will be damaged by colliding with the first magnetic conductive member 121. In this embodiment, the filler may be made of rubber. In some embodiments, the filler may be a mesh, so that when the first magnet 122 is assembled to the first magnetic conductive member 121, the mesh may be used to protect the first magnet 122 and guide the first magnet 122 to be stably assembled to the first magnetic conductive member 121, thereby improving assembly efficiency.

[0044] Accordingly, the second magnetic circuit gap 13a may also be provided with a filler, and the details may refer to the scheme of providing a filler in the first magnetic circuit gap 12a. Of course, in some embodiments, only one of the first magnetic circuit gap 12a and the second magnetic circuit gap 13a is provided with a filler.

[0045] It should be noted that the width of the first magnetic circuit gap 12a and the second magnetic circuit gap 13a can be suitable for the corresponding magnet assembly needs. Exemplarily, taking the first magnetic circuit gap as an example, the width of the first magnetic circuit gap 12a can be greater than or equal to 0.1mm. Furthermore, in some embodiments, the width of the first magnetic circuit gap 12a and / or the width of the second magnetic circuit gap 13a is 0.1mm to 0.2mm, so that not only sufficient assembly clearance can be provided to improve assembly convenience, but also the constraint effect on the magnetic lines of force can be reduced due to excessive width.

[0046] There are many possible ways for the first magnetic component 12 and the second magnetic component 13 to constrain the magnetic lines of force to the vibration area of ​​the corresponding diaphragm component 11. The following describes the structure of the first magnetic circuit gap 12a and the second magnetic circuit gap 13a in combination with the structure of the first magnetic component 12 and the second magnetic component 13, but is not limited thereto.

[0047] In some embodiments, in combination Figure 1 As shown, the first magnetic conductive member 121 includes a first U iron 121a, the first U iron 121a has a first groove, the first magnet 122 is installed in the first groove, and the outer peripheral wall of the first magnet 122 and the side wall of the first groove are spaced apart from each other to form a first magnetic circuit gap 12a.

[0048] The second magnetic component 13 includes a second magnetic conductive member 131 and a second magnet 132. The second magnetic conductive member 131 has a mounting surface C facing the diaphragm component 11. The second magnet 132 is mounted on the mounting surface C, and both side walls forming the second magnetic circuit gap 13a are against the mounting surface C. The second magnet 132 is a cylindrical magnet or an annular magnet, which is not limited here. In this embodiment, since both side walls forming the second magnetic circuit gap 13a are against the mounting surface C of the second magnetic conductive member 131, the position of the mounting surface C corresponding to the first magnetic circuit gap 12a can change the direction of the magnetic lines of force through the first magnetic circuit gap 12a, so that the magnetic lines of force converge to the vibration area of ​​the diaphragm component 11, thereby improving the uniformity of the magnetic field in which the diaphragm component 11 is located.

[0049] Furthermore, the second magnetic conductive member 131 includes a magnetic conductive plate 131a, the mounting surface C is a side surface of the magnetic conductive plate 131a facing the diaphragm assembly 11, and the second magnetic assembly 13 includes a third magnet 133 mounted on the mounting surface C, the third magnet 133 is a ring magnet and is arranged around the second magnet 132, and the second magnet 132 and the third magnet 133 are spaced apart from each other to form a second magnetic circuit gap 13a. Figure 2 Shown based on Figure 1From the distribution of magnetic lines of force in the magnetic circuit of the speaker 10 structure, it can be seen that the above-mentioned structural setting can constrain the magnetic lines of force to the vibration area of ​​the diaphragm assembly 11, thereby reducing leakage magnetic flux and improving the uniformity of the magnetic field in which the diaphragm assembly 11 is located, thereby reducing the probability of the diaphragm assembly 11 working in the non-uniform area of ​​the magnetic field, thereby achieving the effect of improving the sound quality.

[0050] It should be noted that the U iron can be replaced by a T iron, and accordingly, the first magnetic circuit gap 12a can be formed by simply adjusting the installation position of the first magnet 122. Figure 3 As shown, the first magnetic conductive member 121 includes a first T-iron 121b, the first magnet 122 is an annular magnet and is sleeved on the outer periphery of the iron core of the first T-iron 121b, and the inner peripheral wall of the first magnet 122 and the outer peripheral wall of the iron core of the first T-iron 121b are spaced apart from each other to form a first magnetic circuit gap 12a. Figure 4 Shown based on Figure 3 From the distribution of magnetic lines of force in the magnetic circuit of the speaker 10 structure, it can be seen that the above-mentioned structural setting can constrain the magnetic lines of force to the vibration area of ​​the diaphragm assembly 11, thereby reducing leakage magnetic flux and improving the uniformity of the magnetic field in which the diaphragm assembly 11 is located, thereby reducing the probability of the diaphragm assembly 11 working in the non-uniform area of ​​the magnetic field, thereby achieving the effect of improving the sound quality.

[0051] In the implementation manner of the present application, U iron and T iron are used as magnetic conductive parts to play a magnetic conductive role; the specific materials of U iron and T iron include but are not limited to low-carbon steel, pure iron galvanized and other magnetic materials. Taking the magnetic circuit formed by the first magnet 122 and the first magnetic conductive part 121 as an example, based on the magnetic conductive effect of the first magnetic conductive part 121, when the magnetic lines of force of the first magnet 122 pass through the first magnetic conductive part 121, the first magnetic conductive part 121 generates a corresponding magnetic pole. At this time, the position where the first magnetic conductive part 121 contacts the N pole of the first magnet 122 presents an S pole, and correspondingly, the position where the first magnetic conductive part 121 contacts the S pole of the first magnet 122 presents an N pole. In this way, the magnetic lines of force of the first magnetic conductive member 121 and the first magnet 122 form a circuit, and the first magnetic conductive member 121 concentrates the magnetic lines of force of the N pole and the S pole of the first magnet 122 to the first magnetic circuit gap 12a between each other, so that the first magnetic circuit gap 12a generates a stronger magnetic field, thereby achieving the effect of constraining the magnetic lines of force near the first magnetic circuit gap 12a. It should be noted that in the second magnetic component 13, the second magnet 132, the third magnet 133 and the magnetic conductive plate 131a may not be used to form a magnetic circuit. To be precise, the third magnet 133 can be omitted, and the second magnet 132 and the second magnetic conductive member 131 are used to form a magnetic circuit with a second magnetic circuit gap 13a, so that the number of magnets can be further reduced to reduce costs.

[0052] The structure of the second magnetic assembly 13 will be described below with reference to the situation that the second magnetic circuit gap 13 a is formed between the second magnetic conductive member 131 and the second magnet 132 .

[0053] Similar to the first magnetic component 12 , a U-iron or a T-iron can be used to cooperate with the second magnet 132 to form a magnetic circuit with a second magnetic circuit gap 13 a.

[0054] Specifically, combined Figure 5 As shown, the second magnetic conductive member 131 includes a second U iron 131b, the second U iron 131b has a second groove, the second magnet 132 is installed in the second groove, and the outer peripheral wall of the second magnet 132 and the side wall of the second groove are spaced apart from each other to form a second magnetic circuit gap 13a. Alternatively, in combination Figure 6 As shown, the second magnetic conductive member 131 includes a second T-iron 131c, the second magnet 132 is an annular magnet and is sleeved on the outer periphery of the iron core of the second T-iron 131c, and the inner peripheral wall of the second magnet 132 and the outer peripheral wall of the iron core of the second T-iron 131c are spaced apart from each other to form a second magnetic circuit gap 13a. Thus, it can be seen that no matter whether the second magnetic conductive member 131 is a U iron or a T iron, as long as the second magnet 132 is matched with the second magnetic conductive member 131, and the peripheral side wall of the second magnet 132 is spaced apart from the side wall of the second magnetic conductive member 131 opposite to the second magnet 132, the second magnetic circuit gap 13a can be formed between the second magnet 132 and the second magnetic conductive member 131.

[0055] by Figure 6 The structure of the loudspeaker 10 shown is taken as an example, combined with Figure 7 Shown based on Figure 6 From the distribution of magnetic lines of force in the magnetic circuit of the speaker 10 structure, it can be seen that the above-mentioned structural setting can constrain the magnetic lines of force to the vibration area of ​​the diaphragm assembly 11, thereby reducing leakage magnetic flux and improving the uniformity of the magnetic field in which the diaphragm assembly 11 is located, thereby reducing the probability of the diaphragm assembly 11 working in the non-uniform area of ​​the magnetic field, thereby achieving the effect of improving the sound quality.

[0056] It should be noted here that, as Figure 5 and Figure 6 As shown, the first magnetic conductive member 121 can be a U iron (i.e., the first U iron 121a) or a T iron (i.e., the first T iron 121b); accordingly, the second magnetic conductive member 131 can also be a U iron (i.e., the second U iron 131b) or a T iron (i.e., the second T iron 131c). In this way, based on the types of the first magnetic conductive member 121 and the second magnetic conductive member 131, the first magnetic component 12 and the second magnetic component 13 have a variety of different combinations. For example, Figure 5 and Figure 8As shown, the first magnetic conductive member 121 and the second magnetic conductive member 131 are both made of U iron (ie, the first U iron 121a and the second U iron 131b respectively). In this case, the second magnet 132 can be Figure 5 The cylindrical magnet shown can also be Figure 8 Ring magnet shown.

[0057] For example, Figure 6 As shown, the first magnetic conductive member 121 and the second magnetic conductive member 131 are both T-irons (i.e., the first T-iron 121b and the second T-iron 131c, respectively). At this time, the first magnet 122 and the second magnet 132 are both annular magnets. In this embodiment, the first magnetic conductive member 121 and the second magnetic conductive member 131 can be T-irons of the same size, and the first magnet 122 and the second magnet 132 can be annular magnets of the same size. In this way, when the first magnet 122 and the second magnet 132 are coaxially arranged, the first magnetic circuit gap 12a and the second magnetic circuit gap 13a completely overlap in the area facing the diaphragm assembly 11. In other words, the first magnetic circuit gap 12a and the second magnetic circuit gap 13a are facing each other, and the gap widths are consistent. The gap width here refers to the width in the radial direction. Taking the first magnetic circuit gap 12a as an example, the gap width of the first magnetic circuit gap 12a refers to the distance between the outer peripheral wall of the iron core of the first T-iron 121b and the inner peripheral wall of the first magnet 122. Accordingly, the gap width of the second magnetic circuit gap 13a refers to the distance between the outer peripheral wall of the iron core of the second T iron 131c and the inner peripheral wall of the second magnet 132. Figure 7 As shown, the magnetic lines of force generated by the first magnetic component 12 and the second magnetic component 13 near the diaphragm component 11 are consistent, which is beneficial to improving the uniformity of the magnetic field in which the diaphragm component 11 is located, thereby reducing the probability of the diaphragm component 11 working in an inhomogeneous area of ​​the magnetic field, thereby achieving the effect of improving the sound quality.

[0058] Combination Fig. 9 and Fig.10 As shown, in some embodiments, the first magnetic conductive member 121 can be a T iron (i.e., the first T iron 121b), and the second magnetic conductive member 131 can be a U iron (i.e., the second U iron 131b). In this embodiment, the first magnet 122 is sleeved on the outer periphery of the core of the second T iron 131c, and a first magnetic circuit gap 12a is formed between them. The second magnet 132 is arranged in the second groove of the second U iron 131b, and the outer peripheral wall of the second magnet 132 and the side wall of the second groove are spaced apart from each other to form a second magnetic circuit gap 13a. Therefore, by setting the sizes of the first magnetic conductive member 121, the first magnet 122, the second magnetic conductive member 131, and the second magnet 132, it is possible to realize that the first magnetic circuit gap 12a and the second magnetic circuit gap 13a are coaxially arranged on both sides of the diaphragm assembly 11, so as to improve the uniformity of the magnetic field in which the diaphragm assembly 11 is located, thereby reducing the probability of the diaphragm assembly 11 working in the non-uniform area of ​​the magnetic field, so as to achieve the effect of improving the sound quality.

[0059] Combination Figure 8 As shown, the second magnetic component 13 is provided with a second sound outlet hole 13b, and the second sound outlet hole 13b is coaxial with the first sound outlet hole 12b. In this way, when the diaphragm component 11 vibrates, double-sided sound can be achieved through the first sound outlet hole 12b and the second sound outlet hole 13b. Of course, in other embodiments, the second sound outlet hole 13b can also be provided on the second magnetic conductive member 131, and the corresponding second magnet 132 can be configured as a ring magnet to achieve the effect of double-sided sound. For example, in combination Fig.10 As shown, the second magnetic conductive member 131 is provided with a second sound outlet 13b, and the second magnet 132 is a ring magnet and uses a central hole to avoid the second sound outlet 13b from being blocked. In this way, when the diaphragm assembly 11 vibrates, both the first sound outlet 12b and the second sound outlet 13b can meet the sound output needs to achieve double-sided sound output. Of course, as Fig.10 As shown, the diameter of the first sound hole 12b can be larger than the diameter of the second sound hole 13b, so that when the diaphragm assembly 11 vibrates, different sound qualities are emitted through the first sound hole 12b and the second sound hole 13b, thereby meeting different sound effect requirements.

[0060] It should be noted here that an activity space for the diaphragm assembly 11 to vibrate is formed based on the position of the diaphragm assembly 11 corresponding to the second magnetic assembly 13 and the first magnetic assembly 12. In this embodiment, the diaphragm assembly 11 divides the activity space into a first space and a second space. The first sound outlet 12b is connected to the first space, and the second magnetic assembly 13 is provided with a second sound outlet 13b coaxial with the first sound outlet 12b, and the second sound outlet 13b is connected to the second space. In this way, when the diaphragm assembly 11 vibrates, the first sound outlet 12b and the second sound outlet 13b can emit sound independently and synchronously without interfering with each other.

[0061] Combination Figure 6 and Figure 8 As shown, in an embodiment in which the second magnetic component 13 is provided with a second sound outlet 13b, the first magnetic component 12 and the second magnetic component 13 have the same structure, and are mirror-symmetrical with the plane where the diaphragm component 11 is located as the symmetry plane, so that the first sound outlet 12b and the second sound outlet 13b can be used to synchronously produce consistent sound quality, thereby enhancing the sound effect under this sound quality.

[0062] Combination Fig.11As shown, the diaphragm assembly 11 includes a diaphragm 111, a first coil 112 and a second coil 113. The diaphragm 111 can also be a circular, rectangular, rounded rectangular, elliptical or special-shaped structure, which is not specifically limited here. The first coil 112 is arranged on the surface of the diaphragm 111 facing the first magnetic component 12, and the second coil 113 is arranged on the surface of the diaphragm 111 facing the second magnetic component 13, and the first coil 112 and the second coil 113. The first coil 112 and the second coil 113 are used to drive the diaphragm 111 to vibrate in the magnetic field of the first magnetic component 12 and the second magnetic component 13 when powered on, so that the diaphragm 111 pushes the air out from the corresponding sound outlet (such as the first sound outlet 12b) to emit sound. Furthermore, the centers of the first coil 112 and the second coil 113 overlap with the center of the diaphragm 111, so that when the first coil 112 and the second coil 113 are energized to drive the diaphragm 111 to vibrate, the forces on the diaphragm 111 at equal distances around the center are consistent, which is beneficial to the stable operation of the diaphragm 111 to obtain a good sound effect.

[0063] In some embodiments, the first coil 112 and the second coil 113 are coaxial with the first sound outlet 12b, and the first coil 112 and the second coil 113 are connected in series. When the speaker 10 is working, current flows into the first coil 112 and the second coil 113, and the currents of the first coil 112 and the second coil 113 connected in series are consistent, thereby driving the diaphragm 111 to vibrate stably and reliably in the magnetic field of the first magnetic component 12 and the second magnetic component 13, thereby obtaining good sound quality.

[0064] The coil in the present application may also be referred to as a "voice coil". In some embodiments, only one coil may be provided on the diaphragm 111. For example, the diaphragm 111 is provided with a first coil 112 or a second coil 113. To be precise, the diaphragm 111 is provided with a coil only on one side. It is understandable that no matter whether the diaphragm 111 is provided with a coil on one side or both sides, as long as the coil can drive the diaphragm 111 to vibrate in the magnetic field of the first magnetic component 12 and the second magnetic component 13 when energized, it will be sufficient. In other embodiments, the diaphragm 111 may be provided with a plurality of coils arranged in an array, so that according to the density of the magnetic lines of force, the coils are correspondingly arranged at positions where the magnetic lines of force are denser, so as to give full play to the vibration performance of the diaphragm assembly 11. There is no limitation on the number of coils.

[0065] The speaker 10 is applied in an electronic device, and the electronic device includes a control circuit board, which is electrically connected to the speaker 10 and is used to control the speaker 10. Thus, the electronic device can control the speaker 10 to work and output sound through the control circuit board.

[0066] Combine the following Fig.12 The figure shows a circuit module of an electronic device.

[0067] like Fig.12 As shown, Fig.12 The circuit module block diagram of the electronic device provided by the embodiment of the present application is shown. The electronic device may include a radio frequency (RF) circuit 501, a memory 502 including one or more computer-readable storage media, an input unit 503, a display unit 504, a sensor 505, an audio circuit 506, a wireless fidelity (WiFi) module 507, a processor 508 including one or more processing cores, and a power supply 509 and other components. Those skilled in the art can understand that Fig.12 The electronic device structure shown in the figure does not constitute a limitation of the electronic device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0068] The radio frequency circuit 501 can be used to send and receive information, or receive and send signals during a call. In particular, after receiving the downlink information of the base station, it is handed over to one or more processors 508 for processing; in addition, the data related to the uplink is sent to the base station. Usually, the radio frequency circuit 501 includes but is not limited to an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (SIM) card, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, etc. In addition, the radio frequency circuit 501 can also communicate with the network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to the global system for mobile communications (GSM), the general packet radio service (GPRS), the code division multiple access (CDMA), the wideband code division multiple access (WCDMA), the long term evolution (LTE), email, the short message service (SMS), etc.

[0069] The memory 502 can be used to store applications and data. The applications stored in the memory 502 include executable codes. The applications can be composed of various functional modules. The processor 508 executes various functional applications and data processing by running the applications stored in the memory 502. The memory 502 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the electronic device (such as audio data, a phone book, etc.), etc. In addition, the memory 502 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. Accordingly, the memory 502 can also include a memory controller to provide the processor 508 and the input unit 503 with access to the memory 502.

[0070] The input unit 503 can be used to receive input digital, character information or user feature information (such as fingerprints), and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control. Specifically, in a specific embodiment, the input unit 503 may include a touch-sensitive surface and other input devices. The touch-sensitive surface, also known as a touch antenna assembly or a touch pad, can collect user touch operations on or near it (such as operations performed by users using fingers, styluses, or any other suitable objects or accessories on or near the touch-sensitive surface), and drive corresponding connection devices according to a pre-set program. Optionally, the touch-sensitive surface may include a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into touch point coordinates, and then sends it to the processor 508, and can receive and execute commands sent by the processor 508.

[0071] Furthermore, the touch-sensitive surface may cover a liquid crystal panel. When the touch-sensitive surface detects a touch operation on or near it, it is transmitted to the processor 508 to determine the type of touch event. The processor 508 then provides corresponding visual output on the liquid crystal panel according to the type of touch event.

[0072] The display unit 504 may be used to display information input by a user or information provided to a user and various graphical user interfaces of the electronic device. These graphical user interfaces may be composed of graphics, texts, icons, videos and any combination thereof.

[0073] Although in Fig.12In the embodiment, the touch sensitive surface and the liquid crystal panel are used as two independent components to realize input and output functions, but in some embodiments, the touch sensitive surface and the liquid crystal panel can be integrated to realize input and output functions. It can be understood that the antenna assembly can include an input unit 503 and a display unit 504.

[0074] The electronic device may also include at least one sensor 505, such as a proximity sensor, a motion sensor, and other sensors. Among them, the proximity sensor can turn off the LCD panel and / or the backlight when the electronic device is moved to the ear. As a type of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that can be configured in the electronic device, such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be repeated here.

[0075] The audio circuit 506 can provide an audio interface between the user and the electronic device through the speaker 10. The audio circuit 506 can convert the received audio data into an electrical signal, transmit it to the speaker, and convert it into a sound signal for output by the speaker. On the other hand, the audio circuit 506 can provide an audio interface between the user and the electronic device through a microphone. The microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 506 and converted into audio data. The audio data is then output to the processor 508 for processing, and then sent to another electronic device through the radio frequency circuit 501, or the audio data is output to the memory 502 for further processing. The audio circuit 506 may also include an earphone socket to provide communication between an external earphone and the electronic device.

[0076] Wireless Fidelity (WiFi) is a short-range wireless transmission technology. Electronic devices can help users send and receive emails, browse web pages, and access streaming media through the wireless fidelity module 507. It provides users with wireless broadband Internet access. Fig.12 A wireless fidelity module 507 is shown, but it is understandable that it is not an essential component of the electronic device and can be omitted as required without changing the essence of the invention.

[0077] The processor 508 is the control center of the electronic device. It uses various interfaces and lines to connect various parts of the entire electronic device. It executes various functions of the electronic device and processes data by running or executing applications stored in the memory 502 and calling data stored in the memory 502, thereby monitoring the electronic device as a whole. Optionally, the processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 508.

[0078] The electronic device also includes a power supply 509 for supplying power to each component. Preferably, the power supply 509 can be logically connected to the processor 508 through a power management system, so that the power management system can manage charging, discharging, and power consumption. The power supply 509 can also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0079] although Fig.12 Not shown, the electronic device may also include a Bluetooth module, etc., which will not be described in detail here. In specific implementation, the above modules can be implemented as independent entities, or can be arbitrarily combined and implemented as the same or several entities. The specific implementation of the above modules can refer to the previous method embodiment, which will not be described in detail here.

[0080] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the inventive concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A loudspeaker, characterized in that: include: Diaphragm assembly; a first magnetic component, located at one side of the diaphragm component, the first magnetic component comprising a first magnetic conductive member and a first magnet, the first magnetic conductive member having a first sound outlet hole, the first magnet being mounted on the first magnetic conductive member, the first magnet being an annular magnet, the center hole of the first magnet being coaxial with the first sound outlet hole, a first magnetic circuit gap being formed between the first magnet and the first magnetic conductive member, and the first magnetic circuit gap being arranged around the first sound outlet hole; The second magnetic component is located on the side of the diaphragm component facing away from the first magnetic component, and the second magnetic component forms a second magnetic circuit gap. The second magnetic circuit gap is coaxial with the first magnetic circuit gap, and the area of ​​the second magnetic circuit gap facing the diaphragm component at least partially overlaps with the area of ​​the first magnetic circuit gap facing the diaphragm component.

2. The loudspeaker according to claim 1, characterized in that The first magnetic conductive member includes a first U iron, the first U iron has a first groove, the first magnet is installed in the first groove, and the outer peripheral wall of the first magnet and the side wall of the first groove are spaced apart from each other to form the first magnetic circuit gap; Alternatively, the first magnetic conductive member includes a first T-iron, the first magnet is an annular magnet and is sleeved on the outer circumference of the iron core of the first T-iron, and the inner circumferential wall of the first magnet and the outer circumferential wall of the iron core of the first T-iron are spaced apart from each other to form the first magnetic circuit gap.

3. The loudspeaker according to claim 1 or 2, characterized in that: The second magnetic component includes a second magnetic conductive member and a second magnet. The second magnetic conductive member has a mounting surface facing the diaphragm component. The second magnet is mounted on the mounting surface. Both side walls forming the second magnetic circuit gap are against the mounting surface.

4. The loudspeaker according to claim 3, characterized in that The second magnetic conductive component includes a magnetic conductive plate, the mounting surface is a side surface of the magnetic conductive plate facing the diaphragm assembly, the second magnetic assembly includes a third magnet mounted on the mounting surface, the third magnet is an annular magnet and is arranged around the second magnet, and the second magnet and the third magnet are spaced from each other to form the second magnetic circuit gap.

5. The loudspeaker according to claim 4, characterized in that The second magnet is a cylindrical magnet or a ring magnet.

6. The loudspeaker according to claim 1 or 2, characterized in that: The second magnetic component includes a second magnetic conductive member and a second magnet, and the second magnetic circuit gap is formed between the second magnetic conductive member and the second magnet.

7. The loudspeaker according to claim 6, characterized in that The second magnetic conductive member includes a second U-iron, the second U-iron has a second groove, the second magnet is installed in the second groove, and the outer peripheral wall of the second magnet and the side wall of the second groove are spaced apart from each other to form the second magnetic circuit gap; Alternatively, the second magnetic conductive member includes a second T-iron, the second magnet is an annular magnet and is sleeved on the outer circumference of the iron core of the second T-iron, and the inner circumferential wall of the second magnet and the outer circumferential wall of the iron core of the second T-iron are spaced apart from each other to form the second magnetic circuit gap.

8. The loudspeaker according to claim 7, characterized in that The second magnetic component is provided with a second sound outlet hole, and the second sound outlet hole is coaxial with the first sound outlet hole.

9. The loudspeaker according to claim 8, characterized in that The first magnetic component and the second magnetic component have the same structure and are mirror-symmetrical with the plane where the diaphragm component is located as the symmetry plane.

10. The loudspeaker according to claim 1, characterized in that The diaphragm assembly includes a diaphragm and a coil. The coil is disposed on at least one side of the diaphragm. The coil is used to drive the diaphragm to vibrate in the magnetic field of the first magnetic assembly and the second magnetic assembly when powered on.

11. The loudspeaker according to claim 10, characterized in that The coil includes the first coil and the second coil, the first coil is arranged on the surface of the diaphragm facing the first magnetic component, the second coil is arranged on the surface of the diaphragm facing the second magnetic component, the first coil and the second coil are both coaxial with the first sound outlet, and the first coil and the second coil are connected in series to each other.

12. The loudspeaker according to claim 1 or 10, characterized in that: The first magnetic circuit gap and / or the second magnetic circuit gap is provided with a filling piece, and the filling piece is spaced apart from the diaphragm assembly.

13. An electronic device, characterized in that: The electronic device comprises a control circuit board and a speaker as described in any one of claims 1 to 12, wherein the control circuit board is electrically connected to the speaker and is used to control the speaker.

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