CN220896837U - Speaker and electronic equipment - Google Patents

Abstract

The application relates to a loudspeaker and electronic equipment, the loudspeaker comprises a vibrating diaphragm assembly, a first magnetic assembly and a second magnetic assembly, the first magnetic assembly and the second magnetic assembly are respectively arranged on two sides of the vibrating diaphragm assembly, the first magnetic assembly comprises a first magnetic conduction piece and a first magnet, the first magnetic conduction piece is provided with a first sound outlet hole, the first magnet is arranged on the first magnetic conduction piece, a first magnetic circuit gap is formed between the first magnet and the first magnetic conduction piece, the second magnetic assembly is provided with a second magnetic circuit gap coaxial with the first magnetic circuit gap, and the area of the second magnetic circuit gap opposite to the vibrating diaphragm assembly is at least partially overlapped with the area of the first magnetic circuit gap opposite to the vibrating diaphragm assembly. According to the loudspeaker and the electronic equipment, the magnetic force lines are restrained in the vibration area of the vibrating diaphragm assembly by the first magnetic assembly and the second magnetic assembly, so that the probability of the vibrating diaphragm assembly working in a non-uniform area of a magnetic field is reduced, and the tone quality is improved; and this structure reduces the cost.

Description

Speaker and electronic equipment

Technical Field

The present application relates to the field of speaker technologies, and in particular, to a speaker and an electronic device.

Background

Loudspeakers are a very common electroacoustic transducer and are very commonly used in electronic devices such as headphones, mobile phones, tablet computers, smart watches, etc.

The loudspeaker generally comprises a magnetic circuit part, a voice coil and a vibrating diaphragm, wherein the voice coil moves in a magnetic field provided by the magnetic circuit part under the action of alternating current so as to drive the vibrating diaphragm to vibrate and sound. The magnetic field of the magnetic circuit part of the loudspeaker itself presents a homogeneous zone and a inhomogeneous zone. When the voice coil is displaced in the uniform region of the magnetic field, the speaker can be ensured to be in a low distortion state, and nonlinear distortion occurs once the displacement of the voice coil exceeds the uniform region of the magnetic field.

However, in the speaker of the related art, there is a serious magnetic leakage phenomenon, and the uniform region of the magnetic field is small, and the voice coil is easily distorted nonlinearly beyond the uniform region of the magnetic field, affecting the sound quality. For this reason, the related art generally widens the homogeneous region of the magnetic field by disposing more magnets, however, increasing the number of magnets increases the cost.

Disclosure of Invention

The application provides a loudspeaker and electronic equipment, which are used for solving the technical problems of reducing the probability of the vibrating diaphragm assembly working in a non-uniform region of a magnetic field so as to improve the tone quality and reduce the cost.

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

A diaphragm assembly;

The first magnetic assembly is positioned on one side of the vibrating diaphragm assembly and comprises a first magnetic conduction piece and a first magnet, the first magnetic conduction piece is provided with a first sound outlet hole, the first magnet is arranged on the first magnetic conduction piece and is an annular magnet, a central hole of the first magnet is coaxial with the first sound outlet hole, a first magnetic circuit gap is formed between the first magnet and the first magnetic conduction piece, and the first magnetic circuit gap is arranged around the first sound outlet hole;

The second magnetic assembly is positioned on one side of the vibrating diaphragm assembly, which is opposite to the first magnetic assembly, and is provided with a second magnetic circuit gap, the second magnetic circuit gap is coaxial with the first magnetic circuit gap, and the region, which is opposite to the vibrating diaphragm assembly, of the second magnetic circuit gap is at least partially overlapped with the region, which is opposite to the vibrating diaphragm assembly, of the first magnetic circuit gap.

In another aspect, the electronic device includes a control circuit board and the speaker described above, where the control circuit board is electrically connected to the speaker and is configured to control the speaker.

The loudspeaker comprises a vibrating diaphragm assembly, a first magnetic assembly and a second magnetic assembly, wherein the first magnetic assembly and the second magnetic assembly are respectively arranged on two sides of the vibrating diaphragm assembly, and a first magnetic circuit gap is formed between a first magnetic conduction piece of the first magnetic assembly and a first magnet, the first magnetic circuit gap is arranged around a first sound outlet hole, a second magnetic circuit gap coaxial with the first magnetic circuit gap is formed on the second magnetic assembly, and the area of the second magnetic circuit gap opposite to the vibrating diaphragm assembly is at least partially overlapped with the area of the first magnetic circuit gap opposite to the vibrating diaphragm assembly, so that magnetic force lines are restrained in the vibrating area of the vibrating diaphragm assembly, the uniformity of a magnetic field where the vibrating diaphragm assembly is positioned is improved while magnetic leakage is reduced, and therefore the working probability of the vibrating diaphragm assembly in a non-uniform area of the magnetic field is reduced, and the effect of improving sound quality is achieved; because the first magnetic circuit clearance forms between first magnetic conduction spare and first magnet to utilize first magnetic conduction spare and first magnet to form the magnetic circuit, need not to increase magnet and just can retrain the magnetic line to the vibration region of vibrating diaphragm subassembly, in order to do benefit to the reduce cost.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic cross-sectional structure of a speaker according to an embodiment.

Fig. 2 is a schematic diagram of the distribution of magnetic lines of force of a magnetic circuit in the speaker shown in fig. 1.

Fig. 3 is a schematic cross-sectional structure of a speaker according to another embodiment.

Fig. 4 is a schematic diagram of the distribution of magnetic lines of force of the magnetic circuit in the speaker shown in fig. 3.

Fig. 5 is a schematic cross-sectional view of a speaker according to still another embodiment.

Fig. 6 is a schematic cross-sectional structure of a speaker according to still another embodiment.

Fig. 7 is a schematic diagram of the distribution of magnetic lines of force of the magnetic circuit in the speaker shown in fig. 6.

Fig. 8 is a schematic diagram of another structure of a speaker according to an embodiment of the present application.

Fig. 9 is a schematic view of still another structure of a speaker according to an embodiment of the present application.

Fig. 10 is a schematic view of still another structure of a speaker according to an embodiment of the present application.

Fig. 11 is a schematic structural diagram of a diaphragm assembly of a speaker according to an embodiment.

Fig. 12 is a block diagram of a circuit module of an electronic device according to an embodiment.

Reference numerals illustrate:

10. A speaker; 10a, a shell; 11. a diaphragm assembly; 111. a vibrating diaphragm; 112. a first coil; 113. a second coil; 12. a first magnetic component; 12a, a first magnetic path gap; 12b, a first sound outlet hole; 121. a first magnetic conductive member; 121a, a first U-iron; 121b, a first T-iron; 122. a first magnet; 13. a second magnetic component; 13a, second magnetic circuit gap; 13b, a second sound outlet hole; 131. a second magnetic conductive member; C. a mounting surface; 131a, magnetic conductive plates; 131b, a second U iron; 131c, second T iron; 132. a second magnet; 133. and a third magnet.

Detailed Description

In order that the application may be readily understood, a more complete description of the application will be rendered by reference to the appended drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As used herein, "electronic device" refers to a device capable of receiving and/or transmitting communication signals that includes, but is not limited to, a device connected via any one or several of the following connections:

(1) Via a wireline connection, such as via a public-switched telephone network (Public Switched Telephone Networks, PSTN), a digital subscriber line (Digital Subscriber Line, DSL), a digital cable, a direct cable connection;

(2) Via a wireless interface, such as a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter.

An electronic device arranged to communicate over 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:

(1) Satellite phones or cellular phones;

(2) A personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities;

(3) A radio telephone, pager, internet/intranet access, web browser, notepad, calendar, personal digital assistant (Personal DIGITAL ASSISTANT, PDA) equipped with a global positioning system (Global Positioning System, GPS) receiver;

(4) Conventional laptop and/or palmtop receivers;

(5) Conventional laptop and/or palmtop radiotelephone transceivers, and the like.

Referring to fig. 1, a speaker 10 according to an embodiment of the present application may be used in an electronic device, including but not limited to an earphone, a mobile phone, a tablet computer, a notebook computer, a wearable device, a television, etc.

The loudspeaker 10 comprises a diaphragm assembly 11, a first magnetic assembly 12 and a second magnetic assembly 13. The diaphragm assembly 11 is of a flat structure, i.e. a sheet-like structure. The first magnetic component 12 and the second magnetic component 13 are respectively arranged at two sides of the diaphragm component 11. Specifically, the first magnetic component 12 is located on one side of the diaphragm component 11, and the second magnetic component 13 is located on a side of the diaphragm component 11 facing away from the first magnetic component 12. As such, the first magnetic assembly 12 and the second magnetic assembly 13 together construct a magnetic field environment in which the diaphragm assembly 11 vibrates.

The first magnetic assembly 12 includes a first magnetically permeable member 121 and a first magnet 122. The first magnetic conductive member 121 has a first sound outlet hole 12b, the first magnet 122 is mounted on the first magnetic conductive member 121, the first magnet 122 is a ring magnet, a central hole of the first magnet 122 is coaxial with the first sound outlet hole 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 disposed around the first sound outlet hole 12 b. As can be appreciated, since the first magnet 122 is a ring magnet and the central hole of the first magnet 122 is coaxial with the first sound outlet hole 12b, the magnetic field is entirely confined to the vibration area of the diaphragm assembly 11 in the magnetic circuit formed by the first magnetic conductive member 121 and the first magnet 122 and having the first magnetic circuit gap 12a, and the sound emitted by the vibration of the diaphragm assembly 11 is better transmitted by the first sound outlet hole 12 b.

In this embodiment, the second magnetic assembly 13 is formed with a second magnetic path gap 13a, and the second magnetic path gap 13a is coaxial with the first magnetic path gap 12 a. The region of the second magnetic path gap 13a, which is opposite to the diaphragm assembly 11, is at least partially overlapped with the region of the first magnetic path gap 12a, which is opposite to the diaphragm assembly 11, so that magnetic force lines are restrained in the vibration region of the diaphragm assembly 11, the uniformity of a magnetic field where the diaphragm assembly 11 is positioned is improved while magnetic leakage is reduced, the probability that the diaphragm assembly 11 works in a non-uniform region of the magnetic field is reduced, and the effect of improving sound quality is achieved. Since the first magnetic path gap 12a is formed between the first magnetic conductive member 121 and the first magnet 122, so as to form a magnetic path by using the first magnetic conductive member 121 and the first magnet 122, the magnetic line can be restrained to the vibration region of the diaphragm assembly 11 without adding a magnet, so that the cost can be reduced.

It should be noted that, a movable space for vibrating the diaphragm assembly 11 is formed between the second magnetic assembly 13 and the first magnetic assembly 12 corresponding to the position of the diaphragm assembly 11, so as to avoid the first magnetic assembly 12 and the second magnetic assembly 13 from being impacted when the diaphragm assembly 11 vibrates. The first magnetic component 12 and the second magnetic component 13 may be relatively fixed by the base or the housing 10a, such that an edge portion of the diaphragm assembly 11 is fixed between the first magnetic component 12 and the second magnetic component 13. The specific manner of fixing the first magnetic component 12 and the second magnetic component 13 to the base or the housing 10a may be by glue or screw, which is not limited herein. The distance between the first magnetic component 12 and the second magnetic component 13 (i.e., the distance between the opposite surfaces of the first magnetic component and the second magnetic component) may be set according to the amplitude of the vibration of the diaphragm assembly 11, so long as the vibration stroke requirement of the diaphragm assembly 11 is satisfied. In particular, it may be 2mm to 5mm, such as a spacing of 2mm, 3mm, 4mm or 5mm between the first magnetic assembly 12 and the second magnetic assembly 13. The size of the space between the first magnetic component 12 and the second magnetic component 13 is not limited herein.

The first magnetic path gap 12a may be formed by providing a filler (not shown) to maintain a gap between the first magnetic conductive member 121 and the first magnet 122 with respect to each other by filling the first magnetic path gap with the filler so as to avoid looseness therebetween. The filler is spaced from the diaphragm assembly 11 so as not to interfere with the vibration of the diaphragm assembly 11.

In some embodiments, the filling member may be provided in advance on the first magnetic conductive member 121 or may be provided in advance on the first magnet 122. When the first magnetic conductive member 121 and the first magnet 122 are combined, the filling member can play a role in buffering, so that the probability that the first magnet 122 is damaged due to impact on the first magnetic conductive member 121 is reduced. In this embodiment, the filler may be made of rubber. In some embodiments, the filling member may be a gauze, so that when the first magnet 122 is assembled to the first magnetic conductive member 121, the gauze may be used to perform a protection effect and simultaneously guide the first magnet 122 to be stably assembled to the first magnetic conductive member 121, thereby improving assembly efficiency.

Correspondingly, the second magnetic path gap 13a may also be provided with a filler, and in particular reference may be made to the solution of the first magnetic path gap 12a being provided with a filler. Of course, in some embodiments, the filler is provided only in one of the first magnetic path gap 12a and the second magnetic path gap 13 a.

The widths of the first magnetic path gap 12a and the second magnetic path gap 13a may be appropriate for the respective magnet assembly requirements. Illustratively, taking the first magnetic path gap as an example, the width of the first magnetic path gap 12a may be greater than or equal to 0.1mm. Further, in some embodiments, the width of the first magnetic path gap 12a and/or the width of the second magnetic path gap 13a is 0.1mm to 0.2mm, so that not only can sufficient assembly gaps be provided to improve assembly convenience, but also the restriction effect on magnetic force lines due to excessive width is avoided.

There are many possibilities for restricting the magnetic lines of force to the vibration area of the corresponding diaphragm assembly 11 by the first magnetic assembly 12 and the second magnetic assembly 13. The following describes the structure of first magnetic circuit gap 12a and second magnetic circuit gap 13a with reference to the structure of first magnetic element 12 and second magnetic element 13, but is not limited thereto.

In some embodiments, as shown in connection with fig. 1, the first magnetic conductive member 121 includes a first U-shaped iron 121a, the first U-shaped iron 121a has a first groove, the first magnet 122 is mounted in the first groove, and an outer circumferential wall of the first magnet 122 and a side wall of the first groove are spaced apart from each other to form the first magnetic path gap 12a.

The second magnetic assembly 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 assembly 11, the second magnet 132 is mounted on the mounting surface C, and both side walls forming the second magnetic path gap 13a are abutted against the mounting surface C. The second magnet 132 is a cylindrical magnet or a ring magnet, which is not limited herein. In this embodiment, both side walls forming the second magnetic path gap 13a are abutted against the mounting surface C of the second magnetic conductive member 131, so that the position of the mounting surface C corresponding to the first magnetic path gap 12a can change the trend of magnetic lines of force through the first magnetic path gap 12a, so that the magnetic lines of force converge toward the vibration area of the diaphragm assembly 11, and the uniformity of the magnetic field where the diaphragm assembly 11 is located is improved.

Further, 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, the second magnetic assembly 13 includes a third magnet 133 mounted on the mounting surface C, the third magnet 133 is a ring-shaped magnet and is disposed 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. As can be seen from the distribution of magnetic lines of force based on the magnetic circuit in the structure of the loudspeaker 10 in fig. 1 shown in fig. 2, the above-mentioned structural arrangement can restrict the magnetic lines of force to the vibration area of the diaphragm assembly 11, thereby reducing magnetic leakage and improving the uniformity of the magnetic field where the diaphragm assembly 11 is located, and further 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 sound quality.

It should be noted that the U iron may be replaced by T iron, and accordingly, only the mounting position of the first magnet 122 needs to be adjusted to form the first magnetic path gap 12a. Specifically, as shown in fig. 3, the first magnetic conductive member 121 includes a first T-iron 121b, and the first magnet 122 is a ring-shaped magnet and is sleeved on the outer periphery of the core of the first T-iron 121b, and the inner peripheral wall of the first magnet 122 and the outer peripheral wall of the core of the first T-iron 121b are spaced apart from each other to form a first magnetic path gap 12a. As can be seen from the distribution of magnetic lines of force based on the magnetic circuit in the structure of the loudspeaker 10 in fig. 3 shown in fig. 4, the above-mentioned structural arrangement can restrict the magnetic lines of force to the vibration area of the diaphragm assembly 11, thereby reducing magnetic leakage and improving the uniformity of the magnetic field where the diaphragm assembly 11 is located, and further 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 sound quality.

In the embodiment of the application, the U iron and the T iron are used as magnetic conduction pieces and are used for playing a role in magnetic conduction; specific materials for the U iron and the T iron include, but are not limited to, low carbon steel, pure iron galvanization and other magnetic materials. Taking the magnetic circuit formed by the first magnet 122 and the first magnetic conductive member 121 in a matching way as an example, based on the magnetic conductive effect of the first magnetic conductive member 121, when the magnetic force lines of the first magnet 122 pass through the first magnetic conductive member 121, the first magnetic conductive member 121 generates corresponding magnetic poles, at this time, the position where the first magnetic conductive member 121 contacts with the N pole of the first magnet 122 presents the S pole, and correspondingly, the position where the first magnetic conductive member 121 contacts with the S pole of the first magnet 122 presents the N pole. In this way, the magnetic lines of force of the first magnetic conductive member 121 and the first magnet 122 form a loop, 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 path gap 12a therebetween, so that the first magnetic path gap 12a generates a strong magnetic field, thereby achieving the effect of confining the magnetic lines of force in the vicinity of the first magnetic path gap 12 a. In the second magnetic module 13, the second magnet 132, the third magnet 133, and the magnetic conductive plate 131a may not be used to form a magnetic circuit. Precisely, the third magnet 133 can be omitted, and the second magnet 132 and the second magnetic conductive member 131 are utilized to form a magnetic circuit with the second magnetic circuit gap 13a, so that the number of magnets can be further reduced to reduce the cost.

Next, the structure of the second magnetic assembly 13 will be described in the case where a second magnetic path gap 13a is formed between the second magnetic conductive member 131 and the second magnet 132.

Similar to the first magnetic assembly 12, a magnetic circuit having the second magnetic path gap 13a may be constructed using U-iron or T-iron in cooperation with the second magnet 132.

Specifically, as shown in fig. 5, the second magnetic conductive member 131 includes a second U-shaped iron 131b, the second U-shaped iron 131b has a second groove, the second magnet 132 is mounted in the second groove, and an outer peripheral wall of the second magnet 132 and a side wall of the second groove are spaced apart from each other to form a second magnetic path gap 13a. Or as shown in fig. 6, the second magnetic conductive member 131 includes a second T-iron 131c, and the second magnet 132 is a ring-shaped 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 path gap 13a. As described above, it can be seen that the second magnetic path gap 13a can be formed between the second magnet 132 and the second magnetic conductive member 131 by engaging the second magnet 132 with the second magnetic conductive member 131 and spacing the peripheral side wall of the second magnet 132 from the side wall of the second magnetic conductive member 131 opposite to the second magnet 132, regardless of whether the second magnetic conductive member 131 is U-shaped iron or T-shaped iron.

Taking the structure of the loudspeaker 10 shown in fig. 6 as an example, in combination with the distribution of magnetic lines of force based on the magnetic circuit in the structure of the loudspeaker 10 shown in fig. 6 shown in fig. 7, the above structure arrangement can restrict the magnetic lines of force to the vibration region of the diaphragm assembly 11, thereby reducing magnetic leakage and improving the uniformity of the magnetic field where the diaphragm assembly 11 is located, and further reducing the probability of the diaphragm assembly 11 working in the non-uniform region of the magnetic field, so as to achieve the effect of improving the sound quality.

It should be noted that, as shown in fig. 5 and 6, the first magnetic conductive member 121 may be U-shaped iron (i.e., the first U-shaped iron 121 a) or T-shaped iron (i.e., the first T-shaped iron 121 b); accordingly, the second magnetic conductive member 131 may also take the form of a U-iron (i.e., the second U-iron 131 b) or a T-iron (i.e., the second T-iron 131 c). Thus, the first magnetic assembly 12 and the second magnetic assembly 13 have a variety of different combinations based on the type of the first magnetic conductive member 121 and the second magnetic conductive member 131. As shown in fig. 5 and 8, the first magnetic conductive member 121 and the second magnetic conductive member 131 are U-shaped iron (i.e., the first U-shaped iron 121a and the second U-shaped iron 131b, respectively), and the second magnet 132 may be a cylindrical magnet as shown in fig. 5 or a ring magnet as shown in fig. 8.

As another example, as shown in fig. 6, the first magnetic conductive member 121 and the second magnetic conductive member 131 each adopt T-irons (i.e., the first T-iron 121b and the second T-iron 131c, respectively), and at this time, the first magnet 122 and the second magnet 132 are ring magnets. In this embodiment, the first magnetic conductive member 121 and the second magnetic conductive member 131 may be T-shaped magnets having identical dimensions, and the first magnet 122 and the second magnet 132 may be ring-shaped magnets having identical dimensions, so that when the first magnet 122 and the second magnet 132 are coaxially disposed, the areas of the first magnetic path gap 12a and the second magnetic path gap 13a facing the diaphragm assembly 11 are completely overlapped. In other words, first magnetic path gap 12a and second magnetic path gap 13a are aligned, and the gap widths are uniform. Here, the gap width refers to a width in the radial direction, and the gap width of first magnetic path gap 12a refers to a distance from the outer circumferential wall of the core of first T-iron 121b to the inner circumferential wall of first magnet 122, taking first magnetic path gap 12a as an example. Accordingly, the gap width of the second magnetic path gap 13a refers to the distance between the outer circumferential wall of the core of the second T-iron 131c and the inner circumferential wall of the second magnet 132. Thus, as shown in fig. 7, 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, so that the uniformity of the magnetic field where the diaphragm component 11 is located is improved, and the probability that the diaphragm component 11 works in a non-uniform region of the magnetic field is reduced, so that the effect of improving the sound quality is achieved.

As shown in connection with fig. 9 and 10, in some embodiments, the first magnetic conductive member 121 may be T-iron (i.e., the first T-iron 121 b), and the second magnetic conductive member 131 may be U-iron (i.e., the second U-iron 131 b). In this embodiment, the first magnet 122 is fitted around the core outer periphery of the second T-iron 131c, and forms the first magnetic path gap 12a therebetween. The second magnet 132 is disposed in the second groove of the second U-iron 131b, and an outer circumferential wall of the second magnet 132 and a side wall of the second groove are spaced apart from each other to form a second magnetic path gap 13a. Therefore, by setting the dimensions of the first magnetic conductive member 121, the first magnet 122, the second magnetic conductive member 131 and the second magnet 132, the first magnetic circuit gap 12a and the second magnetic circuit gap 13a can be coaxially and oppositely disposed on two sides of the diaphragm assembly 11, so as to improve the uniformity of the magnetic field where the diaphragm assembly 11 is disposed, thereby reducing the probability of the diaphragm assembly 11 working in a non-uniform region of the magnetic field, and achieving the effect of improving the sound quality.

As shown in fig. 8, the second magnetic component 13 is provided with a second sound outlet 13b, and the second sound outlet 13b is coaxial with the first sound outlet 12 b. Thus, when the diaphragm assembly 11 vibrates, double-sided sound production 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 may be formed in the second magnetic conductive member 131, and the corresponding second magnet 132 may be configured as a ring magnet, so as to achieve the effect of double-sided sound production. As shown in fig. 10, 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 shielding the second sound outlet 13b. Therefore, when the diaphragm assembly 11 vibrates, the first sound outlet 12b and the second sound outlet 13b can meet the sound outlet requirement, so as to realize double-sided sound production. Of course, as shown in fig. 10, the diameter of the first sound outlet 12b may be larger than that of the second sound outlet 13b, so that when the diaphragm assembly 11 vibrates, different sound qualities are emitted through the first sound outlet 12b and the second sound outlet 13b, thereby meeting different sound effect requirements.

Here, a movable space for vibrating the diaphragm assembly 11 is formed between the second magnetic assembly 13 and the first magnetic assembly 12 corresponding to the position of the diaphragm assembly 11. In this embodiment, the diaphragm assembly 11 divides the active space into a first space and a second space. The first sound outlet 12b is communicated with the first space, the second magnetic component 13 is provided with a second sound outlet 13b coaxial with the first sound outlet 12b, and the second sound outlet 13b is communicated with the second space. Thus, when the diaphragm assembly 11 vibrates, the first sound outlet 12b and the second sound outlet 13b can be independent and synchronously output sound without mutual interference.

In the embodiment of the second magnetic component 13 with the second sound outlet 13b, as shown in fig. 6 and 8, the first magnetic component 12 and the second magnetic component 13 have the same structure, and the plane of the diaphragm component 11 is mirror symmetry, so that the first sound outlet 12b and the second sound outlet 13b can be used to generate consistent sound quality synchronously, thereby enhancing the sound effect under the sound quality.

As shown in fig. 11, the diaphragm assembly 11 includes a diaphragm 111, a first coil 112, and a second coil 113. The diaphragm 111 may also have a circular, rectangular, rounded rectangular, elliptical, or irregular structure, which is not particularly limited herein. The first coil 112 is disposed on a surface of the diaphragm 111 facing the first magnetic component 12, the second coil 113 is disposed on a 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 for driving the diaphragm 111 to vibrate in the magnetic fields of the first magnetic component 12 and the second magnetic component 13 when being electrified, so that the diaphragm 111 pushes air to be output from the corresponding sound outlet (such as the first sound outlet 12 b) to emit sound. Further, 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 electrified to drive the diaphragm 111 to vibrate, the stresses of the diaphragm 111 at the equidistant positions around the center are consistent, thereby being beneficial to the stable operation of the diaphragm 111 and obtaining a good sounding effect.

In some embodiments, the first coil 112 and the second coil 113 are each coaxial with the first sound outlet hole 12b, and the first coil 112 and the second coil 113 are connected in series with each other. When the loudspeaker 10 works, current flows into the first coil 112 and the second coil 113, and the current of the first coil 112 and the current of the second coil 113 which are connected in series are consistent, so that the vibrating diaphragm 111 is driven to vibrate stably and reliably in the magnetic fields of the first magnetic component 12 and the second magnetic component 13, and good sound quality is obtained.

The coil in the present application may also be referred to as a "voice coil". In some embodiments, only one coil may be disposed on the diaphragm 111. For example, the diaphragm 111 is provided with a first coil 112 or a second coil 113, specifically, only one side of the diaphragm 111 is provided with a coil. It is understood that whether the diaphragm 111 is provided with a coil on one side or on both sides, the coil is capable of driving the diaphragm 111 to vibrate in the magnetic fields of the first magnetic assembly 12 and the second magnetic assembly 13 when energized. In other embodiments, the diaphragm 111 may be provided with a plurality of coils arranged in an array, so that the coils are correspondingly disposed at a position where magnetic lines of force are denser according to the density of the magnetic lines of force, so as to fully exert the vibration performance of the diaphragm assembly 11. The number of coils is not limited herein.

The speaker 10 is used in an electronic device including a control circuit board electrically connected to the speaker 10 and configured to control the speaker 10. So that the electronic device can control the speaker 10 to operate and output sound through the control circuit board.

The circuit module of the electronic device will be described with reference to fig. 12.

As shown in fig. 12, fig. 12 is a block diagram of a circuit module of an electronic device according to an embodiment of the present application. The electronic device may include Radio Frequency (RF) circuitry 501, memory 502 including one or more computer readable storage media, input unit 503, display unit 504, sensor 505, audio circuitry 506, wireless fidelity (WiFi, wireless Fidelity) module 507, processor 508 including one or more processing cores, and power supply 509, etc., as those skilled in the art will appreciate that the electronic device structure shown in fig. 12 does not constitute a limitation of the electronic device, may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.

The radio frequency circuit 501 may be used to send and receive information, or receive and send signals during a call, specifically, after receiving downlink information of a base station, the downlink information is processed by one or more processors 508; in addition, data relating to uplink is transmitted to the base station. Typically, the radio frequency circuitry 501 includes, but is not limited to, an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (SIM, subscriber Identity Module) card, a transceiver, a coupler, a low noise amplifier (LNA, low Noise Amplifier), a duplexer, and the like. In addition, the radio frequency circuit 501 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol including, but not limited to, global system for mobile communications (GSM, global System of Mobile communication), universal packet Radio Service (GPRS, general Packet Radio Service), code division multiple access (CDMA, code Division Multiple Access), wideband code division multiple access (WCDMA, wideband Code Division Multiple Access), long term evolution (LTE, long Term Evolution), email, short message Service (SMS, short MESSAGING SERVICE), and the like.

Memory 502 may be used to store applications and data. The memory 502 stores application programs including executable code. Applications may constitute various functional modules. The processor 508 executes various functional applications and data processing by running application programs stored in the memory 502. The memory 502 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data created according to the use of the electronic device (such as audio data, phonebooks, etc.), and the like. In addition, memory 502 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 502 may also include a memory controller to provide access to the memory 502 by the processor 508 and the input unit 503.

The input unit 503 may be used to receive input numbers, character information or user characteristic information such as fingerprints, and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. In particular, in one particular embodiment, the input unit 503 may include a touch-sensitive surface, as well as other input devices. The touch-sensitive surface, also referred to as a touch antenna assembly or a touch pad, may collect touch operations thereon or thereabout by a user (e.g., operations thereon or thereabout by a user using any suitable object or accessory such as a finger, stylus, etc.), and actuate the corresponding connection means according to a predetermined program. Alternatively, the touch-sensitive surface may comprise two parts, a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device and converts it into touch point coordinates, which are then sent to the processor 508, and can receive commands from the processor 508 and execute them.

Further, the touch-sensitive surface may cover the liquid crystal panel, and when the touch-sensitive surface detects a touch operation thereon or thereabout, the touch-sensitive surface is transferred to the processor 508 to determine the type of touch event, and the processor 508 then provides a corresponding visual output on the liquid crystal panel based on the type of touch event.

The display unit 504 may be used to display information entered by a user or provided to a user as well as various graphical user interfaces of the electronic device, which may be composed of graphics, text, icons, video, and any combination thereof.

Although in fig. 12 the touch sensitive surface and the liquid crystal panel are implemented as two separate components for input and output functions, in some embodiments the touch sensitive surface may be integrated with the liquid crystal panel to implement the input and output functions. It is understood that the antenna assembly may include an input unit 503 and a display unit 504.

The electronic device may also include at least one sensor 505, such as a proximity sensor, a motion sensor, and other sensors. Wherein the proximity sensor may turn off the liquid crystal panel and/or the backlight when the electronic device is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and the direction when the mobile phone is stationary, and can be used for applications of recognizing the gesture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured with the electronic device are not described in detail herein.

Audio circuitry 506 may provide an audio interface between a user and the electronic device through speaker 10. The audio circuit 506 may convert the received audio data into an electrical signal, transmit to a speaker, and be converted into a sound signal output by the speaker. Alternatively, the audio circuit 506 may provide an audio interface between the user and the electronic device through a microphone. The microphone converts the collected sound signals into electrical signals, which are received by the audio circuit 506 and converted into audio data, which are processed by the audio data output processor 508 for transmission to, for example, another electronic device via the radio frequency circuit 501, or which are output to the memory 502 for further processing. The audio circuit 506 may also include a headset base to provide communication of the peripheral headset with the electronic device.

Wireless fidelity (WiFi) belongs to a short-distance wireless transmission technology, and the electronic device can help a user to send and receive e-mail, browse web pages, access streaming media and the like through the wireless fidelity module 507, so that wireless broadband internet access is provided for the user. Although fig. 12 shows the wireless fidelity module 507, it is understood that it is not a necessary component of an electronic device and may be omitted entirely as desired within the scope of not changing the essence of the utility model.

The processor 508 is a control center of the electronic device, connects various parts of the entire electronic device using various interfaces and lines, and performs various functions of the electronic device and processes data by running or executing application programs stored in the memory 502, and calling data stored in the memory 502, thereby performing overall monitoring of the electronic device. Optionally, the processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 508.

The electronic device further comprises a power supply 509 for powering the various components. Preferably, the power supply 509 may be logically connected to the processor 508 through a power management system, so as to perform functions of managing charging, discharging, and power consumption management through the power management system. The power supply 509 may also include one or more of any of a direct current or alternating current power supply, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.

Although not shown in fig. 12, the electronic device may further include a bluetooth module, etc., and will not be described herein. In the implementation, each module may be implemented as an independent entity, or may be combined arbitrarily, and implemented as the same entity or several entities, and the implementation of each module may be referred to the foregoing method embodiment, which is not described herein again.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the inventive concept of the present application, which fall within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (13)

1. A loudspeaker, comprising:

A diaphragm assembly;

The first magnetic assembly is positioned on one side of the vibrating diaphragm assembly and comprises a first magnetic conduction piece and a first magnet, the first magnetic conduction piece is provided with a first sound outlet hole, the first magnet is arranged on the first magnetic conduction piece and is an annular magnet, a central hole of the first magnet is coaxial with the first sound outlet hole, a first magnetic circuit gap is formed between the first magnet and the first magnetic conduction piece, and the first magnetic circuit gap is arranged around the first sound outlet hole;

The second magnetic assembly is positioned on one side of the vibrating diaphragm assembly, which is opposite to the first magnetic assembly, and is provided with a second magnetic circuit gap, the second magnetic circuit gap is coaxial with the first magnetic circuit gap, and the region, which is opposite to the vibrating diaphragm assembly, of the second magnetic circuit gap is at least partially overlapped with the region, which is opposite to the vibrating diaphragm assembly, of the first magnetic circuit gap.

2. The loudspeaker of claim 1, wherein the first magnetically permeable member comprises a first U-iron having a first recess, the first magnet being mounted within the first recess, and an outer peripheral wall of the first magnet and a side wall of the first recess being spaced apart from each other to form the first magnetic circuit gap;

or the first magnetic conduction piece comprises a first T iron, the first magnet is a ring magnet and is sleeved on the outer periphery of the iron core of the first T iron, and the inner peripheral wall of the first magnet and the outer peripheral wall of the iron core of the first T iron are mutually spaced to form the first magnetic circuit gap.

3. The loudspeaker according to claim 1 or 2, wherein the second magnetic member includes a second magnetic conductive member having a mounting surface facing the diaphragm member, and a second magnet mounted to the mounting surface with both side walls forming the second magnetic path gap abutting against the mounting surface.

4. The loudspeaker of claim 3, wherein the second magnetically permeable member comprises a magnetically permeable plate, the mounting surface is a side surface of the magnetically permeable plate facing the diaphragm assembly, the second magnetic assembly comprises a third magnet mounted to the mounting surface, the third magnet is a ring magnet and disposed around the second magnet, and the second magnet and the third magnet are spaced apart from each other to form the second magnetic path gap.

5. The loudspeaker of claim 4, wherein the second magnet is a cylindrical magnet or a ring magnet.

6. The loudspeaker of claim 1 or 2, wherein the second magnetic assembly comprises a second magnetically permeable member and a second magnet, the second magnetic circuit gap being formed between the second magnetically permeable member and the second magnet.

7. The loudspeaker of claim 6, wherein the second magnetically permeable member comprises a second U-iron having a second recess, the second magnet being mounted within the second recess with an outer peripheral wall of the second magnet and a side wall of the second recess being spaced apart from each other to form the second magnetic circuit gap;

Or the second magnetic conduction piece comprises a second T iron, the second magnet is a ring magnet and is sleeved on the outer periphery of the iron core of the second T iron, and the inner peripheral wall of the second magnet and the outer peripheral wall of the iron core of the second T iron are mutually spaced to form the second magnetic circuit gap.

8. The loudspeaker of claim 7, wherein the second magnetic assembly is provided with a second sound outlet, the second sound outlet being coaxial with the first sound outlet.

9. The loudspeaker of claim 8, wherein the first magnetic element and the second magnetic element are identical in structure and are mirror-symmetrical with respect to a plane in which the diaphragm element is located.

10. The loudspeaker of claim 1, wherein the diaphragm assembly comprises a diaphragm and a coil, the coil being disposed on at least one side of the diaphragm, the coil being configured to vibrate the diaphragm in a magnetic field of the first and second magnetic assemblies when energized.

11. The loudspeaker of claim 10, wherein the coil comprises a first coil and a second coil, the first coil being disposed on a surface of the diaphragm facing the first magnetic assembly, the second coil being disposed on a surface of the diaphragm facing the second magnetic assembly, the first coil and the second coil each being coaxial with the first sound outlet, the first coil and the second coil being connected in series with each other.

12. Loudspeaker according to claim 1 or 10, wherein the first magnetic circuit gap and/or the second magnetic circuit gap is provided with a filler, which filler is arranged at a distance from the diaphragm assembly.

13. An electronic device comprising a control circuit board and a loudspeaker according to any of claims 1-12, wherein the control circuit board is electrically connected to the loudspeaker and is arranged to control the loudspeaker.