WO2022194100A1 - Speaker and electronic device - Google Patents

Abstract

The present application provides a speaker and an electronic device. The speaker comprises a basket, a magnetic circuit system, a flexible piece, a voice coil, a bending ring, and a diaphragm. By fixedly connecting the flexible piece to the diaphragm and the bottom wall of the basket, the flexible piece can be provided at an increased proximity to the bottom wall of a body of the basket. In addition, by providing the flexible piece around the magnetic circuit system, an overlapping area is provided between the flexible piece and the magnetic circuit system in the direction of the Z-axis. As such, the thickness of the speaker in the direction of the Z-axis obviates the thickness of the flexible piece, the thickness of the speaker in the direction of the Z-axis is greatly reduced, and the thickness-reduced provision of the speaker is favored. When the speaker is applied in the electronic device, the thickness of the electronic device is reduced.

Description

Speakers and Electronic Equipment

This application claims the priority of the Chinese patent application with the application number of 202110282009.6 and the application title of "A Speaker and Electronic Equipment", which was submitted to the China Patent Office on March 16, 2021. This application claims to be submitted on July 29, 2021 China Patent Office, application number 202110865861.6, application titled "Speaker and Electronic Equipment", the priority of the Chinese patent application, the entire contents of which are incorporated in this application by reference.

technical field

The present application relates to the field of electro-acoustic technology, and in particular, to a speaker and an electronic device.

Background technique

Today's electronic products (such as speakers, televisions, computers, etc.) need to be thinned. The loudspeaker as a sound-emitting component in electronic products also needs to have a thin shape, while the height of the commonly used loudspeaker is relatively large at present, which cannot well meet the thinning requirement of the loudspeaker.

SUMMARY OF THE INVENTION

The present application provides a speaker and an electronic device with a thinner thickness.

In a first aspect, the present application provides a loudspeaker. The loudspeaker includes a cone frame, a magnetic circuit system, a shrapnel, a voice coil, a ring and a diaphragm. The basin frame includes side walls and a bottom wall. The side wall of the basin frame is fixedly connected to the periphery of the bottom wall of the basin frame. The side wall and the bottom wall of the basin frame surround the receiving groove. At least part of the magnetic circuit system is located in the receiving slot. The magnetic circuit system is fixedly connected to the bottom wall of the basin frame. The outer peripheral edge of the folded ring is fixedly connected to the side wall of the basin frame. The outer periphery of the diaphragm is fixedly connected to the inner periphery of the folded ring. At least part of the voice coil is located in the receiving groove. One end of the voice coil is fixedly connected to the diaphragm, and the other end is located in the magnetic gap of the magnetic circuit system. The shrapnel is located in the receiving slot. And the shrapnel is arranged around the circumference of the magnetic circuit system. The shrapnel is fixedly connected to the bottom wall of the basin frame and the diaphragm.

In this embodiment, by fixing the elastic sheet to the diaphragm and the bottom wall of the basin frame, the elastic sheet can be arranged close to the bottom wall of the basin frame body to a greater extent. At this time, the distance between the diaphragm and the bottom wall of the basin frame body can also be greatly reduced. The thickness of the loudspeaker in the Z-axis direction can be reduced to a large extent, thereby facilitating the thinning of the loudspeaker. By arranging the dome around the magnetic circuit system, in the Z-axis direction, the dome and the magnetic circuit system have an overlapping area, that is, in the Z-axis direction, the thickness of the speaker no longer includes the thickness of the dome. In this way, the thickness of the loudspeaker in the Z-axis direction is greatly reduced, which is beneficial to the thinning of the loudspeaker.

It can be understood that by fixing the shrapnel to the bottom wall of the diaphragm and the main body of the basin frame, when the voice coil drives the diaphragm to vibrate in the Z-axis direction, the shrapnel can apply a force along the Z-axis to the diaphragm to avoid the vibration. The voice coil and the diaphragm move along the X-Y plane, that is, to prevent the voice coil and the diaphragm from swinging left and right.

In addition, compared with the traditional elastic wave structure, the present embodiment adopts the elastic sheet structure. Due to the high flatness of the surface of the shrapnel, the occupied space of the shrapnel is small. At this time, on the one hand, the space utilization rate of the speaker is high; on the other hand, the shrapnel is not easy to collide with the voice coil. In this way, the sound emitted by the speaker is less likely to generate abnormal sound, and the sound emitted by the speaker is less likely to be distorted.

In addition, the traditional elastic wave has a lot of deformation due to its wavy structure. When the speaker sounds, the nonlinear distortion is large. However, in this embodiment, the elastic sheet is used, and due to the high flatness of its structure, its own structure has no obvious deformation. When the loudspeaker produces sound, the nonlinear distortion is small, that is, the loudspeaker has better linear compliance.

In addition, when the ring is fixedly connected to the basin frame, the voice coil drives the diaphragm to vibrate along the Z-axis, and the ring can exert force on the diaphragm to prevent the voice coil and diaphragm from moving along the X-Y plane, that is, Avoid swinging the voice coil and diaphragm from side to side.

In one implementation, the magnetic circuit system includes four spaced apart magnetic circuit assemblies. The number of voice coils is four. The other ends of the four voice coils are located in the magnetic gaps of the four magnetic circuit assemblies in a one-to-one correspondence. The shrapnel is provided with four spaced avoidance spaces. The four magnetic circuit assemblies pass through the four avoidance spaces in a one-to-one correspondence.

It can be understood that when the thickness of the speaker in the Z-axis direction is greatly reduced, the distance between the magnetic circuit system and the diaphragm is small, the vibration space of the diaphragm is small, and it is difficult for the speaker to emit louder sound. , that is, it is difficult for the speakers to produce accents. In this embodiment, a magnetic circuit system composed of four magnetic circuit components and a voice coil system composed of four voice coils are used, so that the area for connecting the voice coil system to the diaphragm is larger. When the voice coil moves along the Z-axis direction under the magnetic field environment in the magnetic gap, the voice coil has a large driving force to drive the diaphragm to vibrate along the Z-axis direction. In this way, the loudspeaker has high enough loudness to ensure the effect of reproduction. Especially, when the frequency of the sound is low frequency, the loudspeaker still has high enough loudness to ensure the effect of reproduction.

In addition, when the voice coil has a larger driving force, the amplitude of the diaphragm is larger. If the traditional elastic wave structure is used, the traditional elastic wave structure occupies a large space, and the traditional elastic wave structure is easy to collide with the voice coil, so that the sound emitted by the speaker produces abnormal sound, and the sound emitted by the speaker is easily distorted. In this embodiment, however, an elastic sheet structure is adopted. Due to the higher surface flatness of the shrapnel, the shrapnel occupies less space. At this time, on the one hand, the space utilization rate of the speaker is high; on the other hand, the shrapnel is not easy to collide with the voice coil. In this way, the sound emitted by the speaker is less likely to generate abnormal sound, and the sound emitted by the speaker is less likely to be distorted.

In an achievable manner, the material of the shrapnel is copper foil or stainless steel. In this way, the hardness of the shrapnel is higher. It can be understood that when the voice coil has a larger driving force, the amplitude of the diaphragm is larger. At this time, due to the high hardness of the shrapnel, the shrapnel can still exert a force along the Z-axis direction on the diaphragm to prevent the voice coil and the diaphragm from moving along the X-Y plane, that is, to prevent the voice coil and the diaphragm from swinging left and right.

In an achievable manner, the elastic piece includes a first segment, a second segment, a third segment and a fourth segment. The first, second, third and fourth segments are all curved. The first end of the first segment, the first end of the second segment, the first end of the third segment, and the first end of the fourth segment are connected together. The second end of the first segment is spaced apart from the second segment. The first and second sections enclose the first avoidance space. The second end of the second segment is spaced apart from the third segment. The second and third sections enclose a second avoidance space. The second end of the third segment is spaced apart from the fourth segment. The third and fourth sections enclose a third avoidance space. The second end of the fourth segment is spaced from the first segment. The fourth section and the first section enclose a fourth avoidance space.

It can be understood that the elastic sheet of this embodiment has better flexibility and can adapt to the vibration of the diaphragm with a relatively large amplitude. In addition, during the movement of the first segment, the second segment, the third segment and the fourth segment of the shrapnel in the Z-axis direction, there is less interference with each other.

In an achievable manner, the first end of the first section, the first end of the second section, the first end of the third section and the first end of the fourth section are all fixedly connected to the basin frame bottom wall. The second end of the first segment, the second end of the second segment, the second end of the third segment, and the second end of the fourth segment are all fixedly connected to the diaphragm. In this way, the middle of the elastic sheet is fixedly connected to the bottom wall of the basin frame, and the peripheral edge of the elastic sheet is fixedly connected to the diaphragm. When the shrapnel moves in the Z-axis direction, the force exerted by the shrapnel on the diaphragm is relatively balanced, so as to prevent the voice coil and the diaphragm from moving along the X-Y plane, that is, to prevent the voice coil and the diaphragm from swinging left and right.

In an achievable manner, the first end of the first segment, the first end of the second segment, the first end of the third segment and the first end of the fourth segment are all fixedly connected to the diaphragm . The second end of the first section, the second end of the second section, the second end of the third section and the second end of the fourth section are all fixedly connected to the bottom wall of the basin frame. In this way, the middle of the elastic sheet is fixedly connected to the diaphragm, and the peripheral edge of the elastic sheet is fixedly connected to the bottom wall of the basin frame. When the shrapnel moves in the Z-axis direction, the force exerted by the shrapnel on the diaphragm is relatively balanced, so as to prevent the voice coil and the diaphragm from moving along the X-Y plane, that is, to prevent the voice coil and the diaphragm from swinging left and right.

In an achievable manner, the elastic sheet includes a first surface and a second surface disposed away from each other. The first surface faces the diaphragm. The second surface faces the bottom wall of the pot holder. At least a portion of the first surface is planar and at least a portion of the second surface is planar.

In an achievable manner, the elastic piece includes a first segment, a second segment, a third segment and a fourth segment. The first, second, third and fourth segments are all curved. The first end of the first segment, the first end of the second segment, the first end of the third segment, and the first end of the fourth segment are commonly connected. The second end of the first segment is fixedly connected to the second segment. The first and second sections enclose the first avoidance space. The second end of the second segment is fixedly connected to the third segment. The second and third sections enclose a second avoidance space. The second end of the third segment is fixedly connected to the fourth segment. The third and fourth sections enclose a third avoidance space. The second end of the fourth segment is fixedly connected to the first segment. The fourth section and the first section enclose a fourth avoidance space.

In one implementation, the voice coil includes a first voice coil, a second voice coil, a third voice coil and a fourth voice coil. The first voice coil and the second voice coil are arranged in series to form a first whole, and the third voice coil and the fourth voice coil are arranged in series to form a second whole, and the first whole and the second whole are arranged in parallel.

In an achievable manner, the speaker further includes a first wire, a second wire, a third wire and a fourth wire. The first wire electrically connects the first voice coil and the second voice coil. The second wire electrically connects the third voice coil and the fourth voice coil. The third wire electrically connects the first body and the second body. The fourth wire electrically connects the first body and the second body.

In an achievable manner, the vibrating membrane is provided with a first wire clamping slot and a second wire clamping slot. The first wire clamping slot is used for clamping the first wire and the second wire. The second wire slot holds the third wire and the fourth wire in place. In this way, the arrangement of the first wire, the second wire, the third wire and the fourth wire inside the speaker is relatively regular, and it is not easy to interfere with other components.

In an achievable manner, the basin frame includes a first limiting member. The first limiting member includes a base and a hook. The base is fixedly connected to the bottom wall of the basin frame. The hook portion is fixedly connected to the base. The hook part and the base together enclose a space for the clamping line. The third wire passes through the card wire space. In this way, the arrangement of the third wire inside the speaker is relatively regular, and it is not easy to interfere with other components.

In an achievable manner, the magnetic circuit assembly includes a magnetic conductive bowl, a lower magnetic conductive sheet, a magnetic member and an upper magnetic conductive sheet. The magnetic conductive bowl includes a bottom wall and a side wall. The side wall of the magnetic conductive bowl is fixedly connected to the periphery of the bottom wall of the magnetic conductive bowl. The bottom wall of the magnetic conducting bowl and the side wall of the magnetic conducting bowl enclose a groove. The lower magnetic conductive sheet is located in the groove and is fixedly connected to the bottom wall of the magnetic conductive bowl. The lower magnetic conductive sheet is spaced apart from the side wall of the magnetic conductive bowl. The magnetic piece is located in the groove and is fixedly connected to the lower magnetic conductive sheet. The magnetic part and the side wall of the magnetic conducting bowl are arranged at intervals. At least part of the upper magnetic conductive sheet is located in the groove and is fixedly connected to the magnetic member. The upper magnetic conductive sheet and the side wall of the magnetic conductive bowl are arranged at intervals to form a magnetic gap.

In an achievable manner, the elastic sheet is provided with a first fixing hole and a second fixing hole arranged at intervals. The basin frame includes a first limiting block. The first limiting block is fixedly connected to the bottom wall of the basin frame. The diaphragm is provided with a fixed column. The first limiting block is inserted into the first fixing hole. The fixing column is inserted into the second fixing hole. In this way, the connection mode of the shrapnel with the bottom wall of the basin frame and the diaphragm is relatively simple, and the assembly process is relatively simple.

In an achievable manner, the basin frame includes a basin frame body and a fixing seat. The pot holder main body includes a bottom wall of the pot holder and a side wall of the pot holder. The fixed seat includes a first limit block. The fixing seat is fixedly connected to the bottom wall of the main body of the basin frame.

In an achievable manner, the fixing base further includes a second limiting block. The second limit block is arranged opposite to the first limit block. The bottom wall of the basin frame body is also provided with a limiting hole. The second limit block is inserted into the limit hole. In this way, the connection between the fixing seat and the main body of the basin frame is more stable and firmer.

In an achievable manner, the diaphragm is provided with a fixing groove. One end of the voice coil is inserted into the fixing groove. In this way, the connection between the voice coil and the diaphragm is relatively simple, and the assembly process is relatively simple.

In a second aspect, the present application provides an electronic device. The electronic equipment includes a cabinet and the above-mentioned speaker. The speaker is installed in the cabinet. It can be understood that, by thinning the speaker, when the speaker is applied to an electronic device, the electronic device can also achieve thinning.

Description of drawings

1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application;

Fig. 2 is a partial exploded schematic view of the electronic device shown in Fig. 1;

3 is a partial cross-sectional schematic view of the electronic device shown in FIG. 1 at line A-A;

FIG. 4 is a partially exploded schematic view of an embodiment of the speaker shown in FIG. 2;

Figure 5 is an exploded schematic view of the basin frame shown in Figure 4;

Figure 6a is a schematic structural diagram of the main body of the basin frame shown in Figure 5 at an angle;

Figure 6b is a schematic structural diagram of the basin frame body shown in Figure 5 at another angle;

Figure 7 is an exploded schematic view of the fixture shown in Figure 5;

FIG. 8 is a schematic structural diagram of the fixing seat shown in FIG. 7 at another angle;

Fig. 9 is the partial structure schematic diagram of the basin frame shown in Fig. 4;

Figure 10 is a schematic cross-sectional view of the basin frame shown in Figure 9 at line B-B;

FIG. 11 is a schematic structural diagram of the first limiting member shown in FIG. 5 at another angle;

Figure 12 is a schematic structural diagram of the basin frame shown in Figure 4 at different angles;

Figure 13 is an exploded schematic view of the magnetic circuit assembly shown in Figure 4;

14 is a schematic cross-sectional view of the magnetic circuit assembly shown in FIG. 4;

Fig. 15 is a partial structural schematic diagram of the loudspeaker shown in Fig. 2;

Figure 16 is a sectional view of the part of the loudspeaker shown in Figure 15 at line C-C;

Figure 17 is an enlarged schematic view of the elastic piece shown in Figure 4;

Fig. 18 is a partial structural schematic diagram of the loudspeaker shown in Fig. 2;

Figure 19 is an enlarged schematic view of the folding ring shown in Figure 4;

Fig. 20 is a partial structural schematic diagram of the loudspeaker shown in Fig. 2;

Figure 21 is a schematic structural diagram of the diaphragm shown in Figure 4 at different angles;

Figure 22 is an enlarged schematic view of the voice coil shown in Figure 4;

Fig. 23 is a partial structural schematic diagram of the loudspeaker shown in Fig. 2;

Figure 24 is a schematic cross-sectional view of the loudspeaker shown in Figure 2;

FIG. 25 is a schematic structural diagram of another implementation manner of the elastic sheet provided in the embodiment of the present application;

FIG. 26 is a partial cross-sectional schematic diagram of another embodiment of the speaker provided by the embodiment of the present application.

Detailed ways

The following embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" may be detachable connection or non-detachable connection. A connection; it can be a direct connection or an indirect connection through an intermediary. Wherein, the "fixed connection" may be connected to each other and the relative positional relationship after the connection remains unchanged. Orientation terms mentioned in the embodiments of the present application, such as "top", "bottom", "inner", "outer", "upper" or "lower", etc., only refer to the directions of the drawings, therefore, use The orientation terms are for better and clearer description and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a Limitations of application examples. "Plurality" means at least two.

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of an electronic device 100 provided by an embodiment of the present application. The electronic device 100 may be a speaker, a television, a tablet computer, a camera, a personal computer, a notebook computer, an in-vehicle device, or a wearable device. The electronic device 100 of the embodiment shown in FIG. 1 is described by taking a speaker as an example. For convenience of description, as shown in FIG. 1 , the width direction of the electronic device 100 is defined as the X axis. The length direction of the electronic device 100 is the Y axis. The thickness direction of the electronic device 100 is the Z axis. It should be noted that, FIG. 1 and the following related drawings only schematically show some components included in the electronic device 100, and the actual shape, actual size, actual position and actual structure of these components are not affected by FIG. 1 and the following drawings. limited.

Please refer to FIG. 2 in conjunction with FIG. 1 . FIG. 2 is a partial exploded schematic diagram of the electronic device 100 shown in FIG. 1 . The electronic device 100 includes a cabinet 10 and a speaker 20 . The speaker 20 is attached to the cabinet 10 . The speaker 20 may be fixed to the cabinet 10 by means of dispensing glue, fastening with a fastener or the like. The speaker 20 may be used to receive audio signals, and can emit sound to the outside of the electronic device 100 according to the audio signals. For example, the speaker 20 may be used to play music.

Please refer to FIG. 3 in conjunction with FIG. 2 . FIG. 3 is a partial cross-sectional schematic diagram of the electronic device 100 shown in FIG. 1 at the line A-A. The box body 10 includes a front panel 11 , a frame 12 and a rear panel 13 . The front panel 11 and the rear panel 13 are disposed opposite to each other, and the frame 12 is fixedly connected between the front panel 11 and the rear panel 13 . The front panel 11 , the frame 12 and the rear panel 13 enclose an accommodating space 14 . The accommodating space 14 may be used to accommodate other components of the electronic device 100 .

Exemplarily, the front plate 11 is provided with grooves 111 . The bottom wall of the groove 111 is provided with a communication hole 112 . The communication hole 112 communicates the accommodating space 14 to the outside of the case 10 . In other embodiments, the groove 111 and the communication hole 112 may also be provided on the frame 12 or the rear plate 13 .

Please refer to FIG. 3 again, the speaker 20 is fixed to the bottom wall of the groove 111 , and some of the speakers 20 are located in the accommodating space 14 . Part of the speaker 20 is located in the groove 111 . In other embodiments, part of the speakers 20 may also be located outside the cabinet 10 .

In one embodiment, the electronic device 100 further includes a power amplifier (PA) (not shown). The power amplifier is installed in the accommodating space 14 . One end of the power amplifier is electrically connected to the sound source device (eg, a mobile phone, a computer or a laptop), and the other end is electrically connected to the speaker 20 . When the sound source device sends out an audio signal, the audio signal is transmitted to the power amplifier, and the power amplifier processes the audio signal and transmits the processed audio signal to the speaker 20 .

In this embodiment, two kinds of setting manners of the speakers 20 will be described in detail with reference to the related drawings. The thickness of the speaker 20 in the Z-axis direction of this embodiment can be effectively reduced, which is beneficial to the thinned setting of the loudspeaker 20 and the thinned setting of the electronic device 100 . Specifically, the following will be introduced in conjunction with the relevant drawings.

The first embodiment: please refer to FIG. 4 , which is a partially exploded schematic view of an embodiment of the speaker 20 shown in FIG. 2 . The speaker 20 includes a basin frame 21 , a magnetic circuit system 22 , an elastic sheet 23 , a voice coil system 24 , a folding ring 25 and a diaphragm 26 .

Please refer to FIG. 5 , which is an exploded schematic view of the basin frame 21 shown in FIG. 4 . The basin frame 21 includes a basin frame body 211 , a fixing member 212 , a first limiting member 213 and a second limiting member 214 .

Please refer to FIG. 6a and FIG. 6b. FIG. 6a is a schematic structural diagram of the basin frame body 211 shown in FIG. 5 at an angle. FIG. 6b is a schematic structural diagram of the basin frame main body 211 shown in FIG. 5 at another angle. The basin frame body 211 includes a side wall 211a and a bottom wall 211b. The side wall 211a of the pot holder body 211 surrounds the periphery of the bottom wall 211b of the pot holder body 211 and is fixedly connected to the periphery of the bottom wall 2212 of the pot holder body 211 . The side wall 211a and the bottom wall 211b of the basin frame main body 211 define a receiving groove 2114 .

The bottom wall 211b of the basin frame main body 211 is provided with a mounting hole 2116 . The mounting hole 2116 can connect the receiving groove 2114 to the outside of the basin frame body 211 . The number of the mounting holes 2116 may be one or multiple. When the number of the mounting holes 2116 is plural, the plural mounting holes 2116 are arranged at intervals. In this embodiment, the number of the mounting holes 2116 is four.

The bottom wall 211b of the basin frame body 211 is further provided with a first fastening hole 2117 . The first fastening hole 2117 is spaced apart from the mounting hole 2116 . The first fastening hole 2117 can also connect the receiving groove 2114 to the outside of the basin frame body 211 . In this embodiment, the number of the first fastening holes 2117 is one. A plurality of mounting holes 2116 are arranged around the first fastening hole 2117 . In other embodiments, the number and position of the first fastening holes 2117 are not specifically limited.

The bottom wall 211b of the basin frame body 211 is further provided with a limiting hole 2118 . The limiting hole 2118 can also communicate the receiving groove 2114 to the outside of the basin frame body 211. The limiting hole 2118 is spaced apart from the mounting hole 2116 and the first fastening hole 2117 . The number of the limiting holes 2118 may be one or multiple. When the number of the limiting holes 2118 is multiple, the multiple limiting holes 2118 are arranged at intervals. In this embodiment, the number of the limiting holes 2118 is two. Two limiting holes 2118 are located at the periphery of the first fastening hole 2117 , and a plurality of mounting holes 2116 are disposed around the limiting holes 2118 . In other embodiments, the position of the limiting hole 2118 is not specifically limited.

6a and 6b again, the side wall 211a of the basin frame body 211 includes a first part 2111 , a second part 2112 and a third part 2113 connected in sequence, that is, the second part 2112 is connected to the first part 2111 and the third part between 2113. The first part 2111 and the second part 2112 are bent. The second portion 2112 and the third portion 2113 are bent. In the Z-axis direction, the first part 2111 and the third part 2113 form a height difference, and the first part 2111 , the second part 2112 and the third part 2113 form a stepped shape.

Wherein, the first part 2111 is provided with a through hole 2115 . The through hole 2115 can communicate the receiving groove 2114 to the outside of the basin frame body 211 . The number of through holes 2115 may be one or more. When the number of the through holes 2115 is multiple, the multiple through holes 2115 are arranged at intervals. In this embodiment, the number of the through holes 2115 is seven.

Please refer to FIG. 7 , which is an exploded schematic view of the fixing member 212 shown in FIG. 5 . The fixing member 212 includes a fixing seat 2121 and a fastener 2122 . Fasteners 2122 may be screws, screws, or pins, or the like. The specific embodiment is not limited.

Please refer to FIG. 8, in conjunction with FIG. 7, FIG. 8 is a schematic structural diagram of the fixing seat 2121 shown in FIG. 7 at another angle. The fixing base 2121 includes a fixing base body 2123 , a first limiting block 2124 and a second limiting block 2125 . Wherein, the number of the first limiting block 2124 may be one or multiple. When the number of the first limiting blocks 2124 is multiple, the multiple first limiting blocks 2124 are arranged at intervals. In addition, the number of the second limiting blocks 2125 may be one or multiple. When the number of the second limiting blocks 2125 is multiple, the multiple second limiting blocks 2125 are arranged at intervals. In this embodiment, the number of the first limiting blocks 2124 is four. The number of the second limiting blocks 2125 is two. It can be understood that, when the number of the first limiting blocks 2124 is multiple, the sizes and dimensions of the multiple first limiting blocks 2124 may not be completely consistent. When the number of the second limiting blocks 2125 is multiple, the sizes and dimensions of the multiple second limiting blocks 2125 may not be completely consistent.

The main body 2123 of the fixed seat includes a first surface 2126 and a second surface 2127 which are arranged away from each other, and a peripheral side surface 2128 connected between the first surface 2126 and the second surface 2127 . The first limiting block 2124 is protruded from the first surface 2126 . The second limiting block 2125 is protruded from the second surface 2127 .

In addition, the fixing base body 2123 is provided with a second fastening hole 2129 . The openings of the second fastening holes 2129 are two. One is on the first side 2126 and the other is on the second side 2127. In other embodiments, the opening of the second fastening hole 2129 may also be one and located on the second surface 2127 .

Please refer to FIG. 9 . FIG. 9 is a partial structural diagram of the basin frame 21 shown in FIG. 4 . The fixing base body 2123 is disposed in the receiving groove 2114 and is fixedly connected to the bottom wall 211b of the basin frame body 211 . The first limiting block 2124 faces away from the bottom wall 211b of the basin frame body 211 . A plurality of mounting holes 2116 are disposed around the fixing base body 2123 .

Please refer to FIG. 10 . FIG. 10 is a schematic cross-sectional view of the basin frame 21 shown in FIG. 9 at the line B-B. The fasteners 2122 pass through the first fastening holes 2117 of the basin frame body 211 and the second fastening holes 2129 of the fixing seat body 2123 , so that the fixing seat body 2123 is fixedly connected to the basin frame body 211 .

In addition, the second limiting block 2125 of the fixing seat 2121 is inserted into the limiting hole 2118 of the basin frame body 211 . The plurality of second limiting blocks 2125 are disposed in one-to-one correspondence with the plurality of limiting holes 2118 . In this way, the connection between the fixing seat 2121 and the basin frame main body 211 is more stable and firmer.

In other embodiments, the fasteners 212 may not include the fasteners 2122 . At this time, the fixing seat 2121 can be fixedly connected to the bottom wall 211b of the basin frame main body 211 by means of bonding, welding or the like.

In other embodiments, the fasteners 212 may not include the fasteners 2122 . At this time, the fixing seat 2121 can be integrally formed with the bottom wall 211b of the pot holder body 211, that is, the fixing seat 2121 is a part of the bottom wall 211b of the pot holder body 211.

Please refer to FIG. 11 . FIG. 11 is a schematic structural diagram of the first limiting member 213 shown in FIG. 5 from another angle. The first limiting member 213 includes a base 2131 , a hook portion 2132 and a fastener 2133 . One end of the hook portion 2132 is fixedly connected to the base 2131, and the other end is spaced from the base 2131 to form an opening. The hook portion 2132 and the base 2131 together enclose a wire clamping space 2134 . It can be understood that the fastener 2133 can be a screw, a screw or a pin or the like. The specific embodiment is not limited. In other embodiments, the first limiting member 213 may also not include the fastener 2133 .

In other embodiments, both ends of the hook portion 2132 may also be fixedly connected to the base 2131 .

Please refer to FIG. 12 , in conjunction with FIG. 11 , FIG. 12 is a schematic structural diagram of the basin frame 21 shown in FIG. 4 at different angles. The first limiting member 213 is disposed in the receiving groove 2114 of the basin frame body 211 . The base 2131 of the first limiting member 213 is fixedly connected to the bottom wall 211b of the basin frame body 211 . In this embodiment, the fasteners 2133 of the first limiting member 213 can pass through the base 2131 of the first limiting member 213 and the bottom wall 211b of the basin frame main body 211 , so that the base 2131 of the first limiting member 213 It is fixedly connected to the bottom wall 211b of the basin frame body 211 . In other embodiments, when the first limiting member 213 does not include the fastener 2133, the base 2131 can also be fixedly connected to the bottom wall 211b of the basin frame main body 211 by bonding, welding or the like.

In other embodiments, when the first limiting member 213 does not include the fasteners 2133 , the base 2131 can also be integrally formed with the bottom wall 211 b of the basin frame body 211 , that is, the base 2131 is the bottom of the basin frame body 211 . A part of the wall 211b.

Referring to FIG. 12 again, the second limiting member 214 is disposed in the receiving groove 2114 of the basin frame body 211 and is spaced apart from the first limiting member 213 . The second limiting member 214 is fixedly connected to the bottom wall 211b of the basin frame main body 211 . It can be understood that the second limiting member 214 and the first limiting member 213 may have the same or similar structures, symmetrical or partially symmetrical structures, or different structures. In some embodiments, the second limiting member 214 and the first limiting member 213 have the same structure. For the connection relationship design of other structures, reference can be made to the related solutions of the first limiting member 213 , while the second limiting member 214 and the first limiting member 213 are allowed to be slightly different in the detailed structure or positional arrangement of the components.

The structure of the basin frame 21 is described in detail above with reference to the relevant drawings, and the structure of the magnetic circuit system 22 and the positional relationship and connection relationship between the magnetic circuit system 22 and the basin frame 21 will be described in detail below with reference to the relevant drawings.

Referring again to FIG. 4, the magnetic circuit system 22 includes one or more magnetic circuit components 22a. The number of the magnetic circuit assemblies 22a in this embodiment is described by taking four as an example. It can be understood that the four magnetic circuit assemblies 22a may have the same or similar structure, symmetrical or partially symmetrical structure, or different structures. In this embodiment, the four magnetic circuit assemblies 22a have the same structure. The following description will take one of the magnetic circuit assemblies 22a as an example. Among them, the basic design of the component structure of the other three magnetic circuit assemblies 22a, the design of the connection relationship between the components, and the design of the connection relationship between the components and other structures other than the components can all refer to the following description of the magnetic circuit assembly 22a. The related scheme simultaneously allows the four magnetic circuit assemblies 22a to be slightly different in the detailed structure or positional arrangement of the components.

Please refer to FIG. 13 , which is an exploded schematic view of the magnetic circuit assembly 22 a shown in FIG. 4 . The magnetic circuit assembly 22 a includes a magnetic conductive bowl 221 , a lower magnetic conductive sheet 222 , a magnetic member 223 and an upper magnetic conductive sheet 224 . Wherein, the magnetic member 223 may be a magnetic steel. In other embodiments, the magnetic circuit assembly 22a may also not include the lower magnetic conductive sheet 222 .

Please refer to FIG. 14 in conjunction with FIG. 13 . FIG. 14 is a schematic cross-sectional view of the magnetic circuit assembly 22 a shown in FIG. 4 . The magnetic conductive bowl 221 includes a bottom wall 2211 and a side wall 2212 . It should be noted that, FIG. 14 schematically distinguishes the bottom wall 2211 and the side wall 2212 of the magnetically permeable bowl 221 by dotted lines. The side wall 2212 of the magnetic conductive bowl 221 surrounds the periphery of the bottom wall 2212 . The side wall 2212 of the magnetic conductive bowl 221 is fixedly connected to the bottom wall 2212 of the magnetic conductive bowl 221 . The bottom wall 2211 and the side wall 2212 of the magnetic conductive bowl 221 enclose a groove 2213.

The lower magnetic conductive sheet 222 is located in the groove 2213 and is fixedly connected to the bottom wall 2211 of the magnetic conductive bowl 221 . The magnetic element 223 is also located in the groove 2213 and is stacked on the lower magnetic conductive sheet 222 . The magnetic element 223 is fixedly connected to the lower magnetic conductive sheet 222 . The upper magnetic conductive sheet 224 is also located in the groove 2213 and is stacked on the magnetic member 223 . The upper magnetic conductive sheet 224 is fixedly connected to the magnetic member 223 .

In addition, the lower magnetic conductive sheet 222 , the magnetic member 223 and the upper magnetic conductive sheet 224 are all arranged at intervals from the side wall 2212 of the magnetic conductive bowl 221 . At this time, an empty space is created between the lower magnetic conductive sheet 222 , the magnetic member 223 and the upper magnetic conductive sheet 224 and the side wall 2212 of the magnetic conductive bowl 221 . A magnetic gap S is formed between the upper magnetic conductive sheet 224 and the side wall 2212 of the magnetic conductive bowl 221 . At this time, the magnetic gap S has a magnetic field with a certain magnetic field direction. The direction of the magnetic field is the direction in which the upper magnetic conductive sheet 224 faces the side wall 2212 of the magnetic conductive bowl 221 .

Exemplarily, the bottom wall 2211 of the magnetic conductive bowl 221 , the lower magnetic conductive sheet 222 , the magnetic member 223 and the upper magnetic conductive sheet 224 may be connected by glue.

In other embodiments, the upper magnetic conductive sheet 224 may also be partially located in the groove 2213 and partially located outside the groove 2213 .

Please refer to FIG. 15 , which is a partial structural diagram of the speaker 20 shown in FIG. 2 . The magnetic circuit assembly 22a is fixedly connected to the bottom wall 211b of the basin frame body 211 . Part of the magnetic circuit assembly 22a is located in the receiving groove 2114 , and part of the magnetic circuit assembly 22a passes through the mounting hole 2116 and is located outside the basin frame body 211 . It can be understood that the plurality of magnetic circuit assemblies 22a are disposed in a one-to-one correspondence with the plurality of mounting holes 2116 , that is, one magnetic circuit assembly 22a passes through one mounting hole 2116 . In other embodiments, all the magnetic circuit components 22a may also be located in the receiving groove 2114 .

Please refer to FIG. 16 in conjunction with FIG. 15 . FIG. 16 is a cross-sectional view of part of the speaker 20 shown in FIG. 15 at the line C-C. The bottom wall 2211 of the magnetic conductive bowl 221 passes through the mounting hole 2116 and is located outside the basin frame body 211 . Exemplarily, the side wall 2212 of the magnetic conductive bowl 221 is formed in a stepped shape. The side wall 2212 of the magnetic conductive bowl 221 has a first fixing surface 2212a. The hole wall of the mounting hole 2116 is formed in a stepped shape. The wall of the mounting hole 2116 has a second fixing surface 2116a. The first fixing surface 2212a of the magnetic conductive bowl 221 is fitted with the second fixing surface 2116a of the mounting hole 2116 and is fixedly connected. Exemplarily, the first fixing surface 2212a of the magnetic conductive bowl 221 and the second fixing surface 2116a of the mounting hole 2116 may be fixedly connected by adhesive. In other embodiments, the connection between the magnetic conductive bowl 221 and the bottom wall 211b of the basin frame main body 211 may also adopt other connection methods, which will not be described in detail here.

The structure of the magnetic circuit system 22 and the positional relationship and connection relationship between the magnetic circuit system 22 and the basin frame 21 are described in detail above with reference to the relevant drawings. The structure of the elastic piece 23 , and the positional relationship and connection relationship between the elastic piece 23 , the basin frame 21 and the magnetic circuit system 22 will be described in detail below with reference to the relevant drawings.

Please refer to FIG. 17 , which is an enlarged schematic view of the elastic piece 23 shown in FIG. 4 . The elastic piece 23 includes a first surface 231 and a second surface 232 which are disposed away from each other. At least a portion of the first surface 231 is flat. At least a portion of the second surface 232 is planar. The elastic piece 23 has a first fixing hole 233 and a second fixing hole 234 arranged at intervals. The first fixing hole 233 forms openings on both the first surface 231 and the second surface 232 . The second fixing hole 234 forms openings on both the first surface 231 and the second surface 232 . The number of the first fixing holes 231 may be one or multiple. When the number of the first fixing holes 231 is multiple, the multiple first fixing holes 231 are arranged at intervals. It should be understood that the multiple first fixing holes 231 may be slightly different in detail structure or positional arrangement. The number of the second fixing holes 232 may be one or multiple. When the number of the second fixing holes 232 is multiple, the multiple second fixing holes 232 are arranged at intervals. It should be understood that the detailed structures or positional arrangements of the plurality of second fixing holes 232 may be slightly different. In this embodiment, the number of the first fixing holes 231 and the number of the second fixing holes 232 is four.

Exemplarily, the first fixing hole 233 is located in the middle of the elastic piece 23 . The second fixing hole 234 is located at the periphery of the elastic piece 23 .

Exemplarily, the material of the elastic piece 23 is a metal material such as copper foil or stainless steel.

In addition, the elastic piece 23 is also provided with an escape space 235 . The avoidance space 235 is spaced apart from the first fixing hole 233 and the second fixing hole 234 . The number of avoidance spaces 235 may be one or multiple. When the number of avoidance spaces 235 is plural, the plurality of avoidance spaces 235 are provided at intervals. It should be understood that the detailed structures or location arrangements of the plurality of avoidance spaces 235 may be slightly different.

In this embodiment, the elastic pieces 23 have a multi-segment structure. The elastic piece 23 includes a first segment 1 , a second segment 2 , a third segment 3 and a fourth segment 4 . The first section 1, the second section 2, the third section 3 and the fourth section 4 are all curved. The first end of the first segment 1 , the first end of the second segment 2 , the first end of the third segment 3 and the first end of the fourth segment 4 are connected together. The second end of the first segment 1 is spaced apart from the second segment 2 . The first section 1 and the second section 2 enclose the first avoidance space 235 . The second end of the second segment 2 is spaced apart from the third segment 3 . The second section 2 and the third section 3 enclose a second avoidance space 235 . The second end of the third segment 3 is spaced apart from the fourth segment 4 . The third section 3 and the fourth section 4 enclose a third avoidance space 235 . The second end of the fourth segment 4 is spaced apart from the first segment 1 . The fourth section 4 and the first section 1 enclose a fourth avoidance space 235 . It should be noted that, in FIG. 17 , the first segment 1 , the second segment 2 , the third segment 3 , and the fourth segment 4 are schematically distinguished by dotted lines.

The first end portion of the first segment 1 , the first end portion of the second segment 2 , the first end portion of the third segment 3 and the first end portion of the fourth segment 4 are provided with first fixing holes 233 . The second end portion of the first segment 1 , the second end portion of the second segment 2 , the second end portion of the third segment 3 and the second end portion of the fourth segment 4 are provided with second fixing holes 234 .

Please refer to FIG. 18 in conjunction with FIG. 17 . FIG. 18 is a partial structural diagram of the speaker 20 shown in FIG. 2 . The elastic piece 23 is disposed in the receiving groove 2114 , and the elastic piece 23 is fixedly connected to the bottom wall 211 b of the basin frame main body 211 . The second surface 232 of the elastic piece 23 faces the bottom wall 211b of the basin frame body 211 . In this embodiment, the elastic piece 23 can be fixedly connected to the bottom wall 211b of the basin frame body 211 through the fixing seat 2121 of the basin frame 21 (which may be combined with FIG. 9 ).

Exemplarily, the plurality of first limiting blocks 2124 of the fixing base 2121 pass through the plurality of first fixing holes 233 of the elastic sheet 23 in a one-to-one correspondence. The first limiting block 2124 can be in an interference fit with the first fixing hole 233 , so that the elastic piece 23 is fixedly connected to the fixing seat 2121 . In other embodiments, the first fixing hole 233 can also be filled with glue or the like, so that the elastic piece 23 is fixedly connected to the fixing seat 2121 .

In addition, the elastic pieces 23 are provided around the peripheral side of the magnetic circuit system 22 . Exemplarily, the plurality of magnetic circuit assemblies 22a pass through the plurality of avoidance spaces 235 of the elastic piece 23 in a one-to-one correspondence. In this way, the elastic piece 23 and the magnetic circuit system 22 have an overlapping area in the Z-axis direction.

In other embodiments, the elastic pieces 23 may also adopt other structures, so that the elastic pieces 23 are arranged around the peripheral side of the magnetic circuit system 22 . For example, the elastic piece 23 may be an annular structure.

The structure of the elastic piece 23 , and the positional relationship and connection relationship between the elastic piece 23 , the basin frame 21 , and the magnetic circuit system 22 are described in detail above with reference to the relevant drawings. The structures of the fold ring 25, the diaphragm 26 and the voice coil system 24, as well as the positional relationship and connection relationship between the fold ring 25, the diaphragm 26 and the voice coil system 24, as well as the fold ring 25, the diaphragm 24, and the 26 and the positional relationship and connection relationship between the voice coil system 24 and other components of the speaker 20 .

Please refer to FIG. 19 , which is an enlarged schematic view of the folding ring 25 shown in FIG. 4 . The folding ring 25 is annular. The collar 25 has an outer peripheral edge 251 and an inner peripheral edge 252 . Illustratively, the outer peripheral edge 251 of the flap 25 may be flat. The inner peripheral edge 252 of the fold ring 25 may be convex.

Please refer to FIG. 20 , in conjunction with FIG. 19 , FIG. 20 is a partial structural diagram of the speaker 20 shown in FIG. 2 . The outer peripheral edge 261 of the folding ring 25 is fixed to the second portion 2112 of the basin frame body 211 . The area surrounded by the inner peripheral edge 252 of the fold ring 25 may be opposite to the magnetic circuit system 22, that is, opposite to the four magnetic circuit assemblies 22a.

Exemplarily, the outer peripheral edge 251 of the folding ring 25 may be fixed to the second portion 2112 of the basin frame body 211 by tape or glue.

Please refer to FIG. 21 . FIG. 21 is a schematic structural diagram of the diaphragm 26 shown in FIG. 4 at different angles. The diaphragm 26 includes a diaphragm main body 261 and a fixing column 262 . The number of the fixing column 262 may be one or multiple. When the number of the fixing columns 262 is plural, the plurality of fixing columns 262 are arranged at intervals. The number of the fixing posts 262 in this embodiment is described by taking four as an example.

Wherein, the diaphragm main body 261 includes a bottom plate 2611 and a side wall 2612 (ie, the outer periphery 2612 of the diaphragm main body 261 ). The side wall 2612 of the diaphragm main body 261 surrounds the periphery of the bottom plate 2611 of the diaphragm main body 261 and is fixedly connected to the periphery of the bottom plate 2611 of the diaphragm main body 261 . The bottom plate 2611 and the side wall 2612 of the diaphragm main body 261 define an accommodating groove 2613 . The plurality of fixing posts 262 are located in the accommodating grooves 2613 and are fixedly connected to the bottom plate 2611 of the diaphragm main body 261 .

In addition, the bottom plate 2611 of the diaphragm main body 261 has a plurality of convex portions. The plurality of protrusions can enclose the fixing groove 263 , the first wire-catching groove 264 and the second wire-catching groove 265 . It should be understood that the number of the fixing grooves 263 may be one or multiple. When the number of the fixing grooves 263 is plural, the plurality of fixing grooves 263 are arranged at intervals. The number of the first card slot 264 may be one or more. When the number of the first wire clamping grooves 264 is multiple, the plurality of first wire clamping grooves 264 are arranged at intervals. The number of the second wire card slot 265 may be one or multiple. When the number of the second wire clamping grooves 265 is multiple, the plurality of second wire clamping grooves 265 are arranged at intervals. In this embodiment, the number of the fixing grooves 263 is four, the number of the first wire clamping grooves 264 is two, and the number of the second wire clamping grooves 265 is taken as an example for description.

In other embodiments, the fixing grooves 263 , the first wire clamping grooves 264 and the second wire clamping grooves 265 may also be formed by recesses on the bottom plate 2611 of the diaphragm main body 261 .

Wherein, one first wire clamping slot 264 may communicate with two adjacent fixing slots 263 . The second wire clipping slot 265 is spaced apart from the fixing slot 263 and the first wire clipping slot 264 .

In addition, the fixing column 262 includes a first column body 2621 and a second column body 2622 . The second cylinder 2622 is connected to one end of the first cylinder 2621 . The first column 2621 is fixedly connected to the bottom plate 2611 of the diaphragm main body 261 . The diameter of the first cylinder 2621 is larger than the diameter of the second cylinder 2622 .

Referring again to FIG. 4, the voice coil system 24 includes one or more voice coils 24a. The number of the voice coils 24a in this embodiment is described by taking four as an example. It is understood that the four voice coils 24a may be of the same or similar structure, symmetrical or partially symmetrical structure, or different structures. In this embodiment, the four voice coils 24a have the same structure. The following description will take one of the voice coils 24a as an example. Among them, the basic design of the component structure of the other three voice coils 24a, the design of the connection relationship between the components, and the design of the connection relationship between the components and other structures other than the components can all refer to the related solutions of the voice coil 24a described below. , while allowing the four voice coils 24a to be slightly different in the detail structure or positional arrangement of the components.

Please refer to FIG. 22 , which is an enlarged schematic view of the voice coil 24 a shown in FIG. 4 . The voice coil 24 a includes a voice coil bobbin 241 and a voice coil wire 242 . The voice coil bobbin 241 may be annular. The voice coil wire 242 is fixedly connected to the outer surface of the voice coil bobbin 241 to form a coil structure. Exemplarily, through a winding process, the voice coil wire 242 is fixedly connected to the outer side surface of the voice coil bobbin 241 .

Please refer to FIG. 23 in combination with FIG. 21 and FIG. 22 . FIG. 23 is a partial structural diagram of the speaker 20 shown in FIG. 2 . The voice coil bobbin 241 of the voice coil 24 a is fixedly connected to the diaphragm 26 . Exemplarily, one end of the voice coil bobbin 241 of the voice coil 24a may be inserted into the fixing groove 263 of the diaphragm main body 261 . When the number of the voice coils 24a is four and the number of the fixing grooves 263 is four, the voice coil bobbins 241 of the four voice coils 24a are inserted into the plurality of fixing grooves 263 in a one-to-one correspondence. It can be understood that the voice coil bobbin 241 of the voice coil 24a may be in an interference fit with the fixing groove 263 of the diaphragm main body 261 . In other embodiments, glue can also be filled in the fixing groove 263 , so that the voice coil bobbin 241 of the voice coil 24 a is fixedly connected to the fixing groove 263 of the diaphragm main body 261 .

In this embodiment, the four voice coils 24a are divided into two parts. Each section includes two voice coils 24a. The two voice coils 24a of each section are arranged in series. The two parts of the voice coil 24a are then arranged in parallel.

For example, as shown in FIG. 23, the voice coil system 24 includes a first voice coil 240a, a second voice coil 240b, a third voice coil 240c, and a fourth voice coil 240d. The first voice coil 240 a and the second voice coil 240 b are arranged in series to form the first whole 41 . The third voice coil 240c and the fourth voice coil 240d are arranged in series to form the second body 42 . The first body 41 and the second body 42 are arranged in parallel.

In one embodiment, the first voice coil 240a and the second voice coil 240b may be arranged in series through the first wire 243 . The first wire 243 electrically connects the first voice coil 240a and the second voice coil 240b. The third voice coil 240c and the fourth voice coil 240d may be arranged in series through the second wire 244 . The second wire 244 electrically connects the third voice coil 240c and the fourth voice coil 240d. The first body 41 and the second body 42 are arranged in parallel through the third wire 245 and the fourth wire 246 . The third wire 245 electrically connects the first body 41 and the second body 42 . The fourth wire 246 electrically connects the first body 41 and the second body 42 . Wherein, the first wire 243 and the second wire 244 can be clamped through the two first wire clamping slots 264 respectively. The third wire 245 and the fourth wire 246 can be respectively clamped through the two second wire clamping slots 265 . In this way, the arrangement of the first wire 243 , the second wire 244 , the third wire 245 and the fourth wire 246 inside the speaker 20 is relatively regular, and it is not easy to interfere with other components. It should be noted that 240b and 240c on the left side of FIG. 23 are not marked with lead wires, mainly for the purpose of explaining that 240b and 240a belong to 41. 240c and 240d belong to 42. In addition, reference numerals 240b and 240c have been marked on the right side of FIG. 23 .

Exemplarily, the first wire 243 , the second wire 244 , the third wire 245 and the fourth wire 246 may be brocade wires.

In other embodiments, the first wire 243, the second wire 244, the third wire 245, and the fourth wire 246 may be part of the voice coil wire 242 of the voice coil 24a.

Please refer to FIG. 24 , which is a schematic cross-sectional view of the speaker 20 shown in FIG. 2 . The diaphragm 26 is fixedly connected to the inner periphery 252 of the folding ring 25 . Exemplarily, the side wall 2612 of the diaphragm main body 261 is located outside the inner peripheral edge 252 of the folding ring 25 . The bottom plate 2611 of the diaphragm main body 261 and the side wall 2612 of the diaphragm main body 261 can be fixedly connected to the inner periphery 252 of the folding ring 25 by double-sided tape or glue.

The elastic sheet 23 is fixedly connected to the diaphragm 26 . At this time, the elastic sheet 23 is fixedly connected to the diaphragm 26 and the bottom wall 211 b of the basin frame body 211 . The first surface 231 of the elastic sheet 23 faces the diaphragm 26 . In this embodiment, the elastic piece 23 can be fixedly connected to the bottom plate 2611 of the diaphragm main body 261 through the fixing column 262 of the diaphragm 26 . The plurality of fixing posts 262 of the diaphragm 26 pass through the plurality of second fixing holes 234 of the elastic sheet 23 in a one-to-one correspondence. Specifically, the second column body 2622 of the fixing column 262 is inserted into the second fixing hole 234 of the elastic piece 23 . The second cylinder 2622 may be in interference fit with the hole wall of the second fixing hole 234 , so that the second cylinder 2622 of the fixing column 262 is fixedly connected to the elastic piece 23 . In other embodiments, the second fixing hole 234 can also be filled with glue or the like, so that the second column 2622 of the fixing column 262 can be fixedly connected to the elastic piece 23 .

At least a part of each voice coil 24a is located in the receiving groove 2114 , and a part of each voice coil 24a is located outside the magnetic circuit system 22 , and the other part is located inside the magnetic circuit system 22 . The other end of the voice coil 24 a is located in the magnetic gap S of the magnetic circuit system 22 . When the number of voice coils 24a is four and the number of magnetic circuit components 22a of the magnetic circuit system 22 is four, the other ends of the four voice coils 22a are located in the magnetic gaps S of the four magnetic circuit components 22a in a one-to-one correspondence. . In this way, the voice coil 24a can generate current when an audio signal is transmitted to the voice coil 24a. The voice coil 24a moves in the Z-axis direction under the magnetic field environment within the magnetic gap S. The voice coil 24a can drive the diaphragm 26 to vibrate along the Z-axis direction. At this time, the diaphragm 26 will push the compression and expansion of the air near the diaphragm 26, and the compression and expansion of the air will produce sound.

In addition, the third wire 245 of the voice coil system 24 passes through the wire clamping space 2134 of the first limiting member 213 of the basin frame 21 and the through hole 2115 of the basin frame body 211 , and extends out of the basin frame 21 to be electrically connected external devices to the speaker 20 . It can be understood that, the wire clamping space 2134 can hold the third wire 245 in place. In this way, the arrangement of the third wires 245 inside the speaker 20 is relatively regular, and it is not easy to interfere with other components. The fourth wire 246 of the voice coil system 24 can pass through the wire clipping space 2144 of the second limiting member 214 of the basin frame 21 and the through hole 2115 of the basin frame body 211 to extend out of the basin frame 21 and be electrically connected to the speaker 20 of external devices. It can be understood that the clamping wire space 2144 can clamp the fourth wire 246 . In this way, the arrangement of the fourth wire 246 inside the speaker 20 is relatively regular, and it is not easy to interfere with other components.

Exemplarily, the basin frame 21 may be provided with a first wiring board (not shown). When the third wire 245 passes through the wire clamping space 2134 of the first limiting member 213 of the basin frame 21 and the through hole 2115 of the basin frame body 211 , the third wire 245 can be fixed on the first wiring board and electrically connected to The first terminal block. At this time, the third wire 245 may be electrically connected to external devices of the speaker 20 through the first wiring board.

Exemplarily, the basin frame 21 may be provided with a second wiring board (not shown). When the fourth wire 246 of the voice coil system 24 passes through the wire clamping space 2144 of the second limiting member 214 of the basin frame 21 and the through hole 2115 of the basin frame body 211 , the fourth wire 246 can be fixed on the second wiring board , and is electrically connected to the second wiring board. At this time, the fourth wire 246 may be electrically connected to external devices of the speaker 20 through the second wiring board.

It can be understood that this embodiment introduces a structure of the magnetic circuit system 22 . The magnetic field generated by the magnetic circuit system 22 can push the voice coil 24a to move along the Z-axis direction. In other embodiments, the structure of the magnetic circuit system 22 may also adopt other magnetic circuit structures. The magnetic circuit system 22 capable of generating a magnetic field for moving the voice coil 24a in the Z-axis direction is within the scope of protection of the present application.

In this embodiment, by fixing the elastic sheet 23 to the diaphragm 26 and the bottom wall 211b of the basin frame 21 , the elastic sheet 23 can be arranged close to the bottom wall 211b of the basin frame body 211 to a greater extent. At this time, the distance between the diaphragm 26 and the bottom wall 211b of the basin frame body 211 can also be greatly reduced. The thickness of the loudspeaker 20 in the Z-axis direction can be reduced to a large extent, thereby facilitating the thinning of the loudspeaker 20 . When the elastic pieces 23 can be arranged close to the bottom wall 211b of the basin frame body 211 to a greater extent, the elastic pieces 23 can be arranged around the magnetic circuit system 22 . In the Z-axis direction, the elastic sheet 23 and the magnetic circuit system 22 have an overlapping area, that is, in the Z-axis direction, the thickness of the speaker 20 no longer includes the thickness of the elastic sheet 23 . In this way, the thickness of the loudspeaker 20 in the Z-axis direction is greatly reduced, which is beneficial to the thinning of the loudspeaker 20 .

It can be understood that when the thickness of the speaker 20 in the Z-axis direction is greatly reduced, the distance between the magnetic circuit system 22 and the diaphragm 26 is small, the vibration space of the diaphragm 26 is small, and the speaker 20 is difficult to Loud sound is produced, that is, it is difficult for the speaker 20 to produce a heavy sound. In this embodiment, a magnetic circuit system 22 composed of four magnetic circuit assemblies 22a and a voice coil system 24 composed of four voice coils 24a are used, so that the area for connecting the voice coil system 24 to the diaphragm 26 is large. When the voice coil 24a moves in the Z-axis direction under the magnetic field environment in the magnetic gap S, the voice coil 24a has a relatively large driving force to drive the diaphragm 26 to vibrate in the Z-axis direction. In this way, the loudspeaker 20 has a loud enough loudness to ensure the effect of reproduction. In particular, when the frequency of the sound is low frequency, the loudspeaker 20 still has a sufficiently high loudness to ensure the reproduction effect.

In addition, when the voice coil 24a has a larger driving force, the amplitude of the diaphragm 26 is larger. If the traditional elastic wave structure is adopted, because the traditional elastic wave structure occupies a large space, the traditional elastic wave structure is likely to collide with the voice coil 24a, so that the sound emitted by the speaker 20 produces abnormal sound, and the sound emitted by the speaker 20 is easy to distortion. In this embodiment, however, the elastic sheet 23 structure is adopted. Since the surfaces of the elastic pieces 23 are all flat, the space occupied by the elastic pieces 23 is small. At this time, on the one hand, the space utilization rate of the speaker 20 is relatively high; on the other hand, the elastic piece 23 is less likely to collide with the voice coil 24a. In this way, the sound emitted by the speaker 20 is less likely to generate abnormal sound, and the sound emitted by the speaker 20 is less likely to be distorted.

In addition, the traditional elastic wave has a lot of deformation due to its wavy structure. When the speaker 20 produces sound, the nonlinear distortion is large. However, in this embodiment, the elastic piece 23 is used, and its structure has no obvious deformation due to the high flatness of its structure. When the speaker 20 produces sound, the nonlinear distortion is small, that is, the speaker 20 has better linear compliance.

In this embodiment, by fixing the elastic sheet 23 to the diaphragm 26 and the bottom wall 211b of the basin frame body 211 , when the voice coil 24a drives the diaphragm 26 to vibrate in the Z-axis direction, the elastic sheet 23 can exert an edge on the diaphragm 26 . The force in the Z-axis direction prevents the voice coil 24a and the diaphragm 26 from moving along the X-Y plane, that is, prevents the voice coil 24a and the diaphragm 26 from swinging left and right.

In addition, when the ring 25 is fixedly connected to the basin frame 21, the voice coil 24a drives the diaphragm 26 to vibrate along the Z-axis direction, and the ring 25 can exert a force on the diaphragm 26 to prevent the voice coil 24a and the diaphragm 26 moves along the X-Y plane, that is, to prevent the voice coil 24a and the diaphragm 26 from swinging left and right.

In the second embodiment, the same technical content as the first embodiment will not be repeated: please refer to FIG. 25 , which is a schematic structural diagram of another embodiment of the elastic sheet 23 provided in the embodiment of the present application. The second end of the first segment 1 of the elastic piece 23 is fixedly connected to the second segment 2. The first section 1 and the second section 2 generally form a closed loop structure. The second end of the second segment 2 is fixedly connected to the third segment 3 . The second segment 2 and the third segment 3 generally form a closed-loop structure. The second end of the third segment 3 is fixedly connected to the fourth segment 4 . The third segment 3 and the fourth segment 4 roughly form a closed-loop structure. The second end of the fourth segment 4 is fixedly connected to the first segment 1 . The fourth segment 4 and the first segment 1 generally form a closed-loop structure. It should be noted that, FIG. 25 schematically distinguishes the first segment 1 , the second segment 2 , the third segment 3 , and the fourth segment 4 by dotted lines. In this embodiment, the positions of the second fixing holes 234 are not limited to being located at the second end of the first segment 1 , the second end of the second segment 2 , the second end of the third segment 3 and the fourth segment 4 of the second end.

It can be understood that the peripheral edge of the elastic piece 23 in this embodiment is a continuous structure. In this way, the overall structural strength of the elastic piece 23 is better, and the elastic piece 23 is not easily damaged.

Please refer to FIG. 26 . FIG. 26 is a partial cross-sectional schematic diagram of another embodiment of the speaker 20 provided by the embodiment of the present application. The elastic pieces 23 are arranged around the magnetic circuit system 22 . Exemplarily, the plurality of magnetic circuit assemblies 22a pass through the plurality of avoidance spaces 235 of the elastic piece 23 in a one-to-one correspondence. In this embodiment, the elastic sheet 23 can completely surround the magnetic circuit system 22 .

In this application, several structures of the loudspeaker 20 are introduced in detail with reference to the related drawings. Specifically, by fixing the elastic sheet 23 to the diaphragm 26 and the bottom wall 211b of the basin frame 21 , the elastic sheet 23 can be disposed closer to the bottom wall 211b of the basin frame body 211 to a greater extent. At this time, the distance between the diaphragm 26 and the bottom wall 211b of the basin frame body 211 can also be greatly reduced. The thickness of the loudspeaker 20 in the Z-axis direction can be reduced to a large extent, thereby facilitating the thinning of the loudspeaker 20 .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, and should cover within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (17)

1. A loudspeaker (20), characterized in that it comprises a basin frame (21), a magnetic circuit system (22), an elastic sheet (23), a voice coil (24a), a folding ring (25) and a diaphragm (26);

   The basin frame (21) includes a side wall (211a) and a bottom wall (211b), and the side wall (211a) of the basin frame (21) is fixedly connected to the bottom wall (211b) of the basin frame (21). At the periphery, the side wall (211a) and the bottom wall (211b) of the basin frame (21) enclose a receiving groove (2114);

   At least part of the magnetic circuit system (22) is located in the receiving groove (2114), and the magnetic circuit system (22) is fixedly connected to the bottom wall (211b) of the basin frame (21);

   The outer peripheral edge (251) of the folding ring (25) is fixedly connected to the side wall (211a) of the basin frame (21);

   The outer periphery (2612) of the diaphragm (26) is fixedly connected to the inner periphery (252) of the folding ring (25);

   At least part of the voice coil (24a) is located in the receiving groove (2114), one end of the voice coil (24a) is fixedly connected to the diaphragm (26), and the other end is located in the magnetic circuit system (22) The magnetic gap (S);

   The elastic piece (23) is located in the receiving groove (2114), and the elastic piece (23) is arranged around the peripheral side of the magnetic circuit system (22), and the elastic piece (23) is fixedly connected to the basin frame The bottom wall (211b) of (21) and the diaphragm (26).
2. The loudspeaker (20) according to claim 1, wherein the magnetic circuit system (22) comprises four magnetic circuit assemblies (22a) arranged at intervals, and the number of the voice coils (22a) is four, The other ends of the four voice coils (22a) are located in the magnetic gaps (S) of the four magnetic circuit assemblies (22a) in a one-to-one correspondence;

   The elastic pieces (23) are provided with four spaced avoidance spaces (235), and the four magnetic circuit assemblies (22a) pass through the four avoidance spaces (235) in a one-to-one correspondence.
3. The loudspeaker (20) according to claim 2, wherein the elastic piece (23) comprises a first segment (1), a second segment (2), a third segment (3) and a fourth segment (4) , the first section (1), the second section (2), the third section (3) and the fourth section (4) are all curved;

   The first end of the first segment (1), the first end of the second segment (2), the first end of the third segment (3) and the fourth segment (4) The first ends of the first section (1) are connected together, the second end of the first section (1) is spaced from the second section (2), and the first section (1) and the second section (2) A first avoidance space (235) is enclosed, the second end of the second section (2) is spaced from the third section (3), the second section (2) and the third section (3) Enclosing a second avoidance space (235), the second end of the third section (3) is spaced from the fourth section (4), and the third section (3) is spaced from the fourth section (4). The fourth section (4) encloses a third avoidance space (235), the second end of the fourth section (4) is spaced from the first section (1), and the fourth section (4) A fourth avoidance space (235) is enclosed with the first section (1).
4. The loudspeaker (20) according to claim 3, characterized in that the first end of the first segment (1), the first end of the second segment (2), the third segment ( The first end of 3) and the first end of the fourth segment (4) are fixedly connected to the bottom wall (211b) of the basin frame (21), and the second end of the first segment (1) The end, the second end of the second section (2), the second end of the third section (3) and the second end of the fourth section (4) are all fixedly connected to the Diaphragm (26).
5. The loudspeaker (20) according to any one of claims 1 to 4, characterized in that the elastic piece (23) comprises a first surface (231) and a second surface (232) disposed away from the A surface (231) faces the diaphragm (26), and the second surface (232) faces the bottom wall (211b) of the basin frame (21);

   At least part of the first surface (231) is flat, and at least part of the second surface (232) is flat.
6. The loudspeaker (20) according to claim 4, wherein the elastic piece (23) comprises a first segment (1), a second segment (2), a third segment (3) and a fourth segment (4) , the first section (1), the second section (2), the third section (3) and the fourth section (4) are all curved;

   The first end of the first segment (1), the first end of the second segment (2), the first end of the third segment (3) and the fourth segment (4) The first ends of the first segment (1) are connected together, the second end of the first segment (1) is fixedly connected to the second segment (2), the first segment (1) and the second segment (2) A first avoidance space (235) is enclosed, the second end of the second section (2) is fixedly connected to the third section (3), the second section (2) and the third section (3) Enclosing a second avoidance space (235), the second end of the third section (3) is fixedly connected to the fourth section (4), and the third section (3) is connected to the The fourth section (4) encloses a third escape space (235), the second end of the fourth section (4) is fixedly connected to the first section (1), and the fourth section (4) A fourth avoidance space (235) is enclosed with the first section (1).
7. The loudspeaker (20) according to any one of claims 2 to 6, wherein the voice coil (22a) comprises a first voice coil (240a), a second voice coil (240b), a third voice coil (240b), a a voice coil (240c) and a fourth voice coil (240d);

   The first voice coil (240a) and the second voice coil (240b) are arranged in series to form a first whole (41), the third voice coil (240c) and the fourth voice coil (240c) The rings (240d) are arranged in series and form a second whole (42), and the first whole (41) and the second whole (42) are arranged in parallel.
8. The speaker (20) according to claim 7, wherein the speaker (20) further comprises a first wire (243), a second wire (244), a third wire (245) and a fourth wire (246) );

   The first wire (243) is electrically connected to the first voice coil (240a) and the second voice coil (240b), and the second wire (244) is electrically connected to the third voice coil (240b). 240c) and the fourth voice coil (240d), the third wire (245) electrically connects the first body (41) and the second body (42), and the fourth wire (246) The first body (41) and the second body (42) are electrically connected.
9. The loudspeaker (20) according to claim 8, characterized in that, the diaphragm (26) is provided with a first wire slot (264) and a second wire slot (265), the first wire slot (264) ) for clamping the first wire (243) and the second wire (244), and the second wire clamping slot (265) for the third wire (245) and the fourth wire (246) ) for the card position.
10. The loudspeaker (20) according to claim 8 or 9, wherein the basin frame (21) comprises a first limiting member (213), and the first limiting member (213) comprises a base (2131) and a hook (2132), the base (2131) is fixedly connected to the bottom wall (211b) of the basin frame (21), the hook (2132) is fixedly connected to the base (2131), the The hook portion (2132) and the base (2131) together enclose a wire clamping space (2134);

    The third wire (245) passes through the wire clip space (2134).
11. The speaker (20) according to any one of claims 2 to 10, wherein the magnetic circuit assembly (22a) comprises a magnetic conductive bowl (221), a lower magnetic conductive sheet (222), and a magnetic member (223) ) and the upper magnetic conductive sheet (224);

    The magnetic conductive bowl (221) includes a bottom wall (2211) and a side wall (2212), and the side wall (2212) of the magnetic conductive bowl (221) is fixedly connected to the bottom wall (2212) of the magnetic conductive bowl (221). 2212), the bottom wall (2211) of the magnetic conductive bowl (221) and the side wall (2212) of the magnetic conductive bowl (221) enclose a groove (2213);

    The lower magnetic conductive sheet (222) is located in the groove (2213) and is fixedly connected to the bottom wall (2211) of the magnetic conductive bowl (221). The side walls (2212) of the magnetic conductive bowl (221) are arranged at intervals;

    The magnetic member (223) is located in the groove (2213) and is fixedly connected to the lower magnetic conductive sheet (222), the magnetic member (223) and the side wall of the magnetic conductive bowl (221) (2212) Interval setting;

    At least part of the upper magnetic conductive sheet (224) is located in the groove (2213) and is fixedly connected to the magnetic member (223), the upper magnetic conductive sheet (224) and the magnetic conductive bowl ( The sidewalls (2212) of 221) are spaced apart and form a magnetic gap (S).
12. The loudspeaker (20) according to any one of claims 1 to 11, wherein the elastic piece (23) is provided with a first fixing hole (233) and a second fixing hole (234) arranged at intervals;

    The basin frame (21) includes a first limiting block (2124), the first limiting block (2124) is fixedly connected to the bottom wall (211b) of the basin frame (21), and the diaphragm (26) ) is provided with a fixed column (262);

    The first limiting block (2124) is inserted into the first fixing hole (233), and the fixing column (262) is inserted into the second fixing hole (234).
13. The loudspeaker (20) according to claim 12, wherein the basin frame (21) comprises a basin frame body (211) and a fixing seat (2121), and the basin frame body (211) comprises the basin frame (21) of the bottom wall (211b) and the side wall (211a) of the basin frame (21), the fixing seat (2121) includes the first limiting block (2124);

    The fixing seat (2121) is fixedly connected to the bottom wall (211b) of the basin frame body (211).
14. The loudspeaker (20) according to claim 13, characterized in that, the fixing base (2121) further comprises a second limiting block (2125), the second limiting block (2125) is connected to the first limiting block (2125). bitblock(2124) set back;

    The bottom wall (211b) of the basin frame body (211) is further provided with a limiting hole (2118), and the second limiting block (2125) is inserted into the limiting hole (2118).
15. The loudspeaker (20) according to any one of claims 1 to 14, wherein the diaphragm (26) is provided with a fixing groove (263), and one end of the voice coil (24a) is inserted into the inside the fixing groove (263).
16. The loudspeaker (20) according to any one of claims 1 to 15, characterized in that, the material of the elastic piece (23) is copper foil or stainless steel.
17. An electronic device (100), characterized by comprising a cabinet (10) and the speaker (20) according to any one of claims 1 to 16, wherein the speaker (20) is mounted on the cabinet (10). 10).

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