Speakers and Electronics

Abstract

The present invention discloses a loudspeaker and an electronic device using the loudspeaker. The loudspeaker includes a basin frame, a magnetic circuit system and a vibration system; the basin frame has a first end and a second end disposed back to back; the magnetic circuit system is contained in the first end and is formed with a magnetic gap, which is disposed toward the second end; the vibration system includes an inner diaphragm and a voice coil, one end of the voice coil is inserted in the magnetic gap, and the other end of the voice coil is extended toward the second end; the inner diaphragm is contained in the basin frame and surrounds the voice coil, the inner edge of the inner diaphragm is connected to the peripheral wall of the voice coil, and the outer edge of the inner diaphragm is connected to the basin frame; the outer side of the magnetic gap is also formed with a sound outlet hole connecting the outside world and the inner space of the basin frame in the direction from the first end to the second end, and the inner diaphragm radiates sound signals outward through the sound outlet hole. The technical solution of the present invention can improve the heat dissipation capacity of the loudspeaker.

Description

Technical Field

[0001] The present invention relates to the technical field of electroacoustic conversion, and in particular to a loudspeaker and electronic equipment using the loudspeaker. Background Art

[0002] Smart speakers are an important component of smart homes. They are used to convert electrical signals into sound signals and are energy conversion devices.

[0003] At present, with the development trend of smart home miniaturization, the size of smart speakers is getting smaller and smaller, and the size of the speakers contained in them and the volume of the sound cavity behind them are also getting smaller. Therefore, higher requirements are also put forward for the core component - speakers:

[0004] Relevant technicians usually require that the speaker can withstand higher voltage to ensure that the speaker is louder and the sound is more resonant; however, this often causes the speaker to heat up more seriously. However, the structural design of traditional speakers cannot effectively dissipate the heat of the speaker, which can easily lead to overheating of the speaker and product failure. Summary of the invention

[0005] The main purpose of the present invention is to provide a speaker and an electronic device using the speaker, aiming to improve the heat dissipation capacity of the speaker.

[0006] To achieve the above object, an embodiment of the present invention provides a speaker, the speaker comprising:

[0007] A basin frame, the basin frame having a first end and a second end disposed opposite to each other;

[0008] a magnetic circuit system, the magnetic circuit system being received in the first end and forming a magnetic gap, the magnetic gap being arranged toward the second end; and

[0009] A vibration system, the vibration system comprising an inner diaphragm and a voice coil, one end of the voice coil is inserted in the magnetic gap, the other end of the voice coil is extended toward the second end, the inner diaphragm is accommodated in the basin frame and surrounds the voice coil, the inner edge of the inner diaphragm is connected to the peripheral wall of the voice coil, and the outer edge of the inner diaphragm is connected to the basin frame;

[0010] A sound outlet hole is formed on the outer side of the magnetic gap in the direction from the first end to the second end, connecting the outside world and the inner space of the basin frame, and the inner diaphragm radiates sound signals outward through the sound outlet hole.

[0011] In one embodiment of the present invention, the magnetic circuit system includes a magnetic circuit part and a bracket part, the magnetic circuit part is inserted in the first end and forms the magnetic gap, the bracket part is arranged on the outside of the magnetic circuit part and is used to fix the magnetic circuit part in the basin frame, and the bracket part is provided with the sound outlet hole.

[0012] In one embodiment of the present invention, the support portion comprises:

[0013] A fixing ring, which is disposed around the opening of the first end in a circumferential direction and fixed on the basin frame, and the fixing ring is spaced apart from the magnetic circuit portion to form the sound outlet hole; and

[0014] A cantilever, one end of the cantilever is connected to the fixing ring, and the other end of the cantilever is connected to the magnetic circuit part.

[0015] In one embodiment of the present invention, the magnetic circuit portion comprises:

[0016] A magnetic yoke, the magnetic yoke is inserted in the first end, and the opening of the magnetic yoke is arranged toward the second end;

[0017] The inner magnetic circuit portion is arranged in the magnetic yoke, and the side wall of the magnetic yoke surrounds the inner magnetic circuit portion and is spaced from the inner magnetic circuit portion to form the magnetic gap.

[0018] In one embodiment of the present invention, a receiving groove is provided on the outer surface of the bottom wall of the magnetic yoke;

[0019] The speaker further comprises a secondary vibration system and a secondary inner magnetic circuit portion, wherein the secondary inner magnetic circuit portion is arranged in the accommodating groove, and the side wall of the accommodating groove surrounds the secondary inner magnetic circuit portion and is spaced from the secondary inner magnetic circuit portion to form a secondary magnetic gap;

[0020] The diaphragm cover of the auxiliary vibration system is arranged at the notch of the accommodating groove, one end of the voice coil of the auxiliary vibration system is inserted in the auxiliary magnetic gap, and the other end is connected to the diaphragm of the auxiliary vibration system.

[0021] In one embodiment of the present invention, the speaker also includes a shell and a suspension system. The basin frame is accommodated in the shell and is elastically connected to the shell through the suspension system so that the basin frame can vibrate along its axial direction and radiate sound signals to the outside. The shell forms an avoidance opening corresponding to the opening of the first end.

[0022] In one embodiment of the present invention, the suspension system includes an edge diaphragm and a spider, the edge diaphragm is disposed between the first end and the housing, the inner edge of the edge diaphragm is connected to the first end, and the outer edge of the edge diaphragm is connected to the housing;

[0023] The elastic wave is arranged between the second end and the outer shell, the inner edge of the elastic wave is connected to the second end, and the outer edge of the elastic wave is connected to the outer shell.

[0024] In one embodiment of the present invention, the outer shell, the edge diaphragm, the elastic wave and the basin frame enclose a cavity, the side wall of the outer shell is provided with a through hole connecting the outside and the cavity, and the side wall of the basin frame is provided with a leakage hole connecting the space on the side of the edge diaphragm facing away from the sound outlet.

[0025] In one embodiment of the present invention, the vibration system further comprises a centering support plate, which is accommodated in the basin frame and surrounds the voice coil, the inner edge of the centering support plate is connected to the peripheral wall of the voice coil, the outer edge of the centering support plate is connected to the basin frame, and the centering support plate is located on a side of the inner diaphragm facing away from the sound outlet hole;

[0026] And / or, the vibration system further comprises a dust cap, wherein the dust cap is provided on an end of the voice coil extending toward the second end.

[0027] To achieve the above object, an embodiment of the present invention further provides an electronic device, the electronic device comprising a speaker, the speaker comprising:

[0028] A basin frame, the basin frame having a first end and a second end disposed opposite to each other;

[0029] a magnetic circuit system, the magnetic circuit system being received in the first end and forming a magnetic gap, the magnetic gap being arranged toward the second end; and

[0030] A vibration system, the vibration system comprising an inner diaphragm and a voice coil, one end of the voice coil is inserted in the magnetic gap, the other end of the voice coil is extended toward the second end, the inner diaphragm is accommodated in the basin frame and surrounds the voice coil, the inner edge of the inner diaphragm is connected to the peripheral wall of the voice coil, and the outer edge of the inner diaphragm is connected to the basin frame;

[0031] A sound outlet hole is formed on the outer side of the magnetic gap in the direction from the first end to the second end, connecting the outside world and the inner space of the basin frame, and the inner diaphragm radiates sound signals outward through the sound outlet hole.

[0032] Under the design of the present invention, the inner diaphragm of the vibration system divides the internal space of the basin frame into two upper and lower chambers, the magnetic gap formed in the middle of the magnetic circuit system is located in the upper chamber, and the upper chamber is connected to the outside through the sound outlet formed outside the magnetic gap, thereby forming a heat dissipation channel from the magnetic gap to the outside, which is conducive to the heat dissipation of the voice coil wire. That is, the present invention changes the assembly method of the speaker - after assembly, the voice coil wire is located at the end of the speaker facing the outside, that is, located in the chamber on the side of the inner diaphragm facing the sound outlet, and can be directly in contact with the outside air through the newly constructed heat dissipation channel. In this way, the heat generated by the voice coil wire, which is the main heat source of the speaker, when the speaker is working, will be directly discharged to the outside air along with the vibration of the vibration system and the air flow generated during the vibration; compared with the heat dissipation method of the existing speaker - a large part of the heat first enters the rear sound cavity along with the vibration of the inner diaphragm, and then the heat is radiated into the outside air through the cavity wall of the rear sound cavity, the direct convection heat dissipation method adopted by the present invention is obviously more efficient, thereby ensuring that the speaker can withstand higher power input, can provide greater loudness, and reduce the probability of overheating failure.

[0033] Moreover, under the design of the present invention, the inner diaphragm adopts a surround voice coil, which is not only conducive to reducing the axial size of the speaker, but also provides space for the introduction of other auxiliary structures (such as centering supports) to optimize the structure of the speaker and improve its performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0035] Figure 1 It is a structural schematic diagram of an embodiment of an electronic device of the present invention;

[0036] Figure 2 for Figure 1 A cross-sectional view of an electronic device;

[0037] Figure 3 for Figure 1 A structural diagram of the middle speaker from another perspective;

[0038] Figure 4 for Figure 3 Cross-sectional view of the speaker.

[0039] Description of Figure Numbers:

[0040]

[0041]

[0042] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0045] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] In view of the technical problem mentioned in the background technology, the present invention proposes a speaker, aiming to improve the heat dissipation capacity of the speaker.

[0049] It can be understood that the speaker proposed in the present invention can be applied to electronic devices such as ordinary speakers and smart speakers.

[0050] The specific structure of the speaker proposed by the present invention will be described in the following specific embodiments:

[0051] like Figures 1 to 4 As shown, in an embodiment of the speaker 100 of the present invention, the speaker 100 includes:

[0052] A basin frame 10, wherein the basin frame 10 has a first end 11 and a second end 13 disposed opposite to each other;

[0053] a magnetic circuit system 20, wherein the magnetic circuit system 20 is received in the first end 11 and forms a magnetic gap 20a, wherein the magnetic gap 20a is disposed toward the second end 13; and

[0054] A vibration system 30, the vibration system 30 comprises an inner diaphragm 31 and a voice coil 33, one end of the voice coil 33 is inserted in the magnetic gap 20a, the other end of the voice coil 33 is extended toward the second end 13, the inner diaphragm 31 is accommodated in the basin frame 10 and surrounds the voice coil 33, the inner edge of the inner diaphragm 31 is connected to the peripheral wall of the voice coil 33, and the outer edge of the inner diaphragm 31 is connected to the basin frame 10;

[0055] A sound outlet hole 20b is formed on the outer side of the magnetic gap 20a in the direction from the first end 11 to the second end 13, connecting the outside and the internal space of the basin frame 10, and the inner diaphragm 31 radiates sound signals outward through the sound outlet hole 20b.

[0056] In this embodiment, the basin frame 10 is generally a cylindrical structure with two ends open. The first end 11 of the basin frame 10 is set upward, that is, it is set toward the outside, and has a first opening for inserting and installing the magnetic circuit system 20; the second end 13 of the basin frame 10 is set downward, and has a second opening for avoiding the vibration system 30. It can be understood that "avoiding the vibration system 30" in this embodiment means that the voice coil 33 of the vibration system 30 is inserted through the second opening and partially protrudes; at this time, the design of the second opening provides avoidance for the vibration of the voice coil 33, preventing the second end of the basin frame 10 from interfering with the voice coil 33; at the same time, it is more conducive to reducing the axial size of the speaker 100. Of course, in other embodiments, the second end of the basin frame 10 can also be completely closed without designing an opening. In this case, the vibration system 30 can be completely accommodated in the basin frame 10, so that the vibration system 30 is well protected.

[0057] The magnetic circuit system 20 is inserted into the first end 11 of the basin frame 10 from the first opening in an "inverted" manner, and is connected and fixed to the first end 11 of the basin frame 10 (specific methods may be welding, gluing, screw connection, snap connection, etc.). At this time, the magnetic gap 20a located in the middle of the magnetic circuit system 20 is set downward and toward the second end 13 of the basin frame 10; the sound outlet hole 20b located on the periphery of the middle of the magnetic circuit system 20 allows the internal space of the basin frame 10 to communicate with the outside world.

[0058] The voice coil 33 of the vibration system 30 is accommodated in the basin frame 10 and is arranged vertically. The upper end of the voice coil 33 (i.e., the end where the voice coil wire 331 is located) is inserted into the magnetic gap 20a of the magnetic circuit system 20, and the lower end of the voice coil 33 is arranged downward and toward the second end 13 of the basin frame 10. At this time, the inner diaphragm 31 of the vibration system 30 is also accommodated in the basin frame 10 and surrounds the voice coil 33, and the voice coil 33 is connected to the basin frame 10.

[0059] At this point, it is not difficult to find that:

[0060] In the design of this embodiment, the inner diaphragm 31 of the vibration system 30 divides the internal space of the basin frame 10 into two upper and lower chambers. The magnetic gap 20a formed in the middle of the magnetic circuit system 20 is located in the upper chamber, and the upper chamber is interconnected with the outside through the sound outlet 20b formed outside the magnetic gap 20a, thereby forming a heat dissipation channel from the magnetic gap 20a to the outside, which is beneficial to the heat dissipation of the voice coil wire 331. That is, this embodiment changes the assembly method of the speaker 100 - after assembly, the voice coil wire 331 is located at the end of the speaker 100 facing the outside, that is, in the chamber on the side of the inner diaphragm 31 facing the sound outlet 20b, and can be directly in contact with the outside air through the newly constructed heat dissipation channel. In this way, the heat generated by the voice coil wire 331, which is the main heat source of the speaker 100, when the speaker 100 is working, will be directly discharged into the outside air along with the vibration of the vibration system 30 and the air flow generated by the vibration; compared with the heat dissipation method of the existing speaker 100 - a large part of the heat first enters the rear sound cavity with the vibration of the inner diaphragm 31, and then the heat is radiated into the outside air through the cavity wall of the rear sound cavity, the direct convection heat dissipation method adopted in this embodiment is obviously more efficient, thereby ensuring that the speaker 100 can withstand higher power input, can provide greater loudness, and reduce the probability of overheating failure.

[0061] Moreover, in the design of this embodiment, the inner diaphragm 31 adopts a surround voice coil, which is not only conducive to reducing the axial size of the speaker 100, but also provides space for the introduction of other auxiliary structures (such as the centering support plate 35) in the future, so that the structure of the speaker 100 can be optimized and the performance can be improved.

[0062] In addition, it should be noted that:

[0063] In this embodiment, the vibration system 30 further includes a centering support 35, which is accommodated in the basin frame 10 and surrounds the voice coil 33. The inner edge of the centering support 35 is connected to the peripheral wall of the voice coil 33, and the outer edge of the centering support 35 is connected to the basin frame 10. The centering support 35 is located on the side of the inner diaphragm 31 that is away from the sound outlet 20b. It can be understood that due to the configuration of the centering support 35, the vibration of the inner diaphragm 31 and the vibration of the voice coil 33 in the vibration system 30 will be effectively and reasonably carried out under the traction of the centering support 35, thereby reducing the probability of the "eccentricity" problem and improving the reliability of the speaker 100. In addition, since the centering support 35 is arranged on the side of the inner diaphragm 31 that is away from the sound outlet 20b, it will not cause the heat dissipation channel to be blocked, so that the heat dissipation capacity of the heat dissipation channel is strongly guaranteed.

[0064] In this embodiment, the vibration system 30 further includes a dust cap 37, and the dust cap 37 is covered on one end of the voice coil 33 extending toward the second end 13. It can be understood that the design of the dust cap 37 can seal the voice coil 33, reduce the possibility of dust and other impurities entering the voice coil 33, and thus avoid dust and other impurities from adversely affecting the coordination between the vibration system 30 and the magnetic circuit system 20.

[0065] like Figures 1 to 4 As shown, in an embodiment of the speaker 100 of the present invention, the magnetic circuit system 20 includes a magnetic circuit part 21 and a bracket part 23, the magnetic circuit part 21 is inserted in the first end 11, and the magnetic gap 20a is formed, the bracket part 23 is arranged on the outside of the magnetic circuit part 21, and is used to fix the magnetic circuit part 21 in the basin frame 10, and the bracket part 23 is provided with the sound outlet hole 20b.

[0066] In this embodiment, the magnetic circuit portion 21 is inserted into the first end 11 of the frame 10 from the first opening in an "inverted" manner, and the magnetic gap 20a is formed on the side of the magnetic circuit portion 21 facing the internal space of the frame 10. In addition, the outer wall of the magnetic circuit portion 21 is spaced from the inner wall of the frame 10; that is, the magnetic circuit portion 21 only occupies a portion of the space in the middle of the frame 10, and the remaining space outside the magnetic circuit portion 213 in the frame 10 is used to accommodate components such as the inner diaphragm 31 and the voice coil 33.

[0067] Furthermore, the bracket part 23 is arranged between the basin frame 10 and the magnetic circuit part 21, and is used to fix the magnetic circuit part 21 to the basin frame 10. Specifically, the bracket part 23 and the basin frame 10 can be fixed by adhesive bonding, welding, screw connection, snap connection, etc.; the bracket part 23 and the magnetic circuit part 21 can be fixed by adhesive bonding, welding, screw connection, snap connection, integrated structure, etc. In addition, the bracket part 23 is provided with a sound outlet hole 20b connecting the outside world and the internal space of the basin frame 10, which is used for the inner diaphragm 31 to radiate sound signals outward.

[0068] It can be understood that, under the design of this embodiment, the magnetic circuit system 20 is roughly composed of two parts; wherein, the magnetic circuit part 21 is located in the middle position, and is used to form a magnetic gap 20a to provide a strong magnetic field environment for the voice coil 33, so that the voice coil 33 can vibrate smoothly when powered; on the other hand, the bracket part 23 is located on the periphery, and is used to fix the magnetic circuit part 21 in the basin frame 10, to provide stable support for the magnetic circuit part 21, so that the cooperation between it and the vibration system 30 is more reliable, and at the same time, a sound outlet 20b is formed for the transmission of sound waves to the outside, which is convenient for the sound wave to be guided out.

[0069] It should be noted that, in addition to the above-mentioned design in which the sound hole 20b is opened on the magnetic circuit system 20 (specifically, opened on the bracket part 23 of the magnetic circuit system 20), the sound hole 20b can also be opened on the basin frame 10, specifically, can be opened on the part where the first end of the basin frame 10 is connected to the magnetic circuit system 20; of course, the sound hole 20b can also be opened on an independent bracket, which is supported between the inner wall surface of the first end of the basin frame 10 and the magnetic circuit system 20 to fix the magnetic circuit system 20 to the basin frame 10.

[0070] like Figures 1 to 4 As shown, in an embodiment of the speaker 100 of the present invention, the bracket portion 23 includes:

[0071] A fixing ring 231, which is disposed around the opening of the first end 11 and fixed to the basin frame 10, and the fixing ring 231 is spaced apart from the magnetic circuit portion 21 to form the sound outlet 20b; and

[0072] A cantilever 233 , one end of which is connected to the fixing ring 231 , and the other end of which is connected to the magnetic circuit portion 21 .

[0073] In this embodiment, a mounting platform is formed on the inner side wall of the first end 11 of the basin frame 10 (i.e., the upper end of the basin frame 10), and the mounting platform is arranged around the circumference of the basin frame 10. The fixing ring 231 of the bracket part 23 is fixed on the mounting platform (specifically, the method may be welding, gluing, screw connection, snap connection, etc.), and the fixing ring 231 is spaced apart from the outer side wall of the magnetic circuit part 21 to form a sound outlet 20b connecting the outside and the internal space of the basin frame 10.

[0074] Furthermore, the cantilever 233 of the bracket part 23 is supported between the inner wall of the fixing ring 231 and the outer wall of the magnetic circuit part 21, and is used to fix the magnetic circuit part 21 on the fixing ring 231, so that the magnetic circuit part 21 is fixed through the connection between the fixing ring 231 and the basin frame 10.

[0075] It can be understood that under the design of this embodiment, the bracket part 23 is roughly composed of two parts, namely a fixing ring 231 and a cantilever 233. It is not only simple in structure and easy to process, but also has strong stability and high reliability. It can provide stable and reliable support for the magnetic circuit part 21 while simplifying the structure of the speaker 100, which is beneficial to the assembly and maintenance of the speaker 100.

[0076] In addition, it should be noted that, in the present embodiment, three cantilevers 233 are provided, and the three cantilevers 233 are evenly distributed along the circumference of the fixing ring 231, and the outer ends are all connected to the fixing ring 231, and the inner ends are all connected to the magnetic circuit part 21. In this way, the connection stability between the bracket part 23 and the magnetic circuit part 21 can be further enhanced, thereby improving the stability and reliability of the cooperation between the magnetic circuit system 20 and the vibration system 30. Moreover, in the present embodiment, the cantilever 233 and the fixing ring 231 are an integral structure, and the connection between the cantilever 233 and the magnetic circuit part 21 is also achieved by relying on the cantilever 233 and the magnetic yoke 211 of the magnetic circuit part 21 as an integral structure. Of course, in other embodiments, the connection between the cantilever 233 and the magnetic circuit part 21 can also be achieved by welding, gluing, screw connection, snap connection, etc.

[0077] like Figures 1 to 4 As shown, in an embodiment of the loudspeaker 100 of the present invention, the magnetic circuit portion 21 includes:

[0078] A magnetic yoke 211, wherein the magnetic yoke 211 is inserted into the first end 11, and an opening of the magnetic yoke 211 is arranged toward the second end 13;

[0079] The inner magnetic circuit portion 213 is disposed in the magnetic yoke 211, and the side wall of the magnetic yoke 211 surrounds the inner magnetic circuit portion 213 and is spaced apart from the inner magnetic circuit portion 213 to form the magnetic gap 20a.

[0080] In this embodiment, the magnetic yoke 211 is inserted into the first end 11 of the frame 10 from the first opening in an "inverted" manner, and at this time, the opening of the magnetic yoke 211 is downwardly disposed toward the second end 13 of the frame 10. That is, a slot is provided on one side of the magnetic yoke 211 that faces the inner space of the frame 10, for accommodating the inner magnetic circuit portion 213, so as to form a magnetic gap 20a that cooperates with the voice coil 33 of the vibration system 30 with the inner magnetic circuit portion 213.

[0081] Furthermore, the inner magnetic circuit part 213 is composed of three parts: a first magnet 2131 stacked on the slotted bottom wall of the magnetic yoke 211, a first magnetic conductive plate 2133 stacked on the first magnet 2131, and a second magnet 2135 stacked on the first magnetic conductive plate 2133. Specifically, the materials of the first magnet 2131 and the second magnet 2135 can be selected from rare earth permanent magnets, commonly used ones are neodymium iron boron or aluminum nickel cobalt, etc. The material of the first magnetic conductive plate 2133 can be selected from SPCC, SPCD, SPCE, etc.

[0082] It can be understood that a stable and strong magnetic field environment can be formed between the magnetic yoke 211 and the inner magnetic circuit part 213, thereby providing favorable conditions for the vibration of the voice coil 33 when energized, thereby improving the vibration performance of the voice coil 33 and improving the acoustic performance of the speaker 100.

[0083] In addition, it should be noted that, in this embodiment, the fixing ring 231 of the bracket part 23, the cantilever 233 and the magnetic yoke 211 of the magnetic circuit part 21 are an integrated structure, and the material of the integrated structure can be SPCC, SPCD, SPCE, etc. It can be understood that the design of the integrated structure can enhance the stability of the magnetic circuit system 20, thereby providing a more stable magnetic field environment for the vibration system 30, which is beneficial to the acoustic performance of the speaker 100; at the same time, the design of the integrated structure can also bring bonus to the stability of the overall structure of the speaker 100, thereby helping the speaker 100 to withstand higher power input and provide greater loudness.

[0084] like Figures 1 to 4 As shown, in an embodiment of the speaker 100 of the present invention, a receiving groove 2111 is provided on the outer surface of the bottom wall of the magnetic yoke 211;

[0085] The speaker 100 further includes a secondary vibration system 40 and a secondary inner magnetic circuit portion 50, wherein the secondary inner magnetic circuit portion 50 is disposed in the accommodating groove 2111, and the side wall of the accommodating groove 2111 surrounds the secondary inner magnetic circuit portion 50 and is spaced from the secondary inner magnetic circuit portion 50 to form a secondary magnetic gap 2113;

[0086] The diaphragm cover of the auxiliary vibration system 40 is arranged at the notch of the accommodating groove 2111 , and one end of the voice coil of the auxiliary vibration system 40 is inserted in the auxiliary magnetic gap 2113 , and the other end is connected to the diaphragm of the auxiliary vibration system 40 .

[0087] It can be understood that under the design of this embodiment, it is equivalent to integrating a new set of sound-generating components on the original magnetic circuit system 20 for high-frequency response. In this way, it complements the response of the original sound-generating components at low frequencies and improves the high-frequency cutoff frequency of the entire system. In addition, since the new sound-generating component is integrated into the original magnetic circuit system 20 (specifically located on the outer surface of the bottom wall of the magnetic yoke 211), it not only saves the investment cost of the second set of magnetic circuit systems and improves the utilization rate of materials, but also simplifies the assembly process and optimizes the overall structure.

[0088] Specifically, the secondary inner magnetic circuit portion 50 is composed of three parts: a third magnet 51 stacked on the bottom wall of the accommodating groove 2111 and a second magnetic conductive plate 53 stacked on the third magnet 51. Specifically, the material of the third magnet 51 can be selected from rare earth permanent magnets, such as neodymium iron boron or aluminum nickel cobalt. The material of the second magnetic conductive plate 53 can be selected from SPCC, SPCD, SPCE, etc.

[0089] like Figures 1 to 4 As shown, in an embodiment of the speaker 100 of the present invention, the speaker 100 also includes a shell 60 and a suspension system 70. The basin frame 10 is accommodated in the shell 60 and is elastically connected to the shell 60 through the suspension system 70, so that the basin frame 10 can vibrate along its axial direction and radiate sound signals to the outside. The shell 60 forms an avoidance opening 60a corresponding to the opening of the first end 11.

[0090] In this embodiment, the housing 60 is generally a cylindrical structure with openings at both ends, which is arranged around the outside of the basin frame 10 and spaced apart from the basin frame 10. The opening at the upper end of the housing 60 is the avoidance opening 60a, which is used to connect the sound outlet 20b on the magnetic circuit system 20 with the outside. Furthermore, the suspension system 70 surrounds the basin frame 10 and elastically connects the basin frame 10 and the housing 60 so that the basin frame 10 can vibrate along its axial direction, so that the basin frame 10 and the sound system thereon can form a vibrating body with the suspension system 70 and radiate sound signals to the outside through the avoidance opening 60a.

[0091] Thus, when the housing 60 of the speaker 100 is installed in the electronic device 1000, the housing 60 of the speaker 100 is fixedly connected to the housing 200 of the electronic device 1000, and the basin frame 10 of the speaker 100 and the sound system thereon are elastically connected to the housing 200 of the electronic device 1000. In this way, the basin frame 10 and the sound system thereon are used as a counterweight, and the resonance of the air in the internal cavity 300 of the electronic device 1000 caused by the vibration of the sound system on the basin frame 10 is used to promote the overall vibration of the basin frame 10 and the sound system thereon, so as to achieve the expansion of the low-frequency performance of the system.

[0092] In other words, with the development trend of miniaturization of smart homes, the size of smart speakers is getting smaller and smaller, and the size of the speakers 100 contained therein is also getting smaller. Therefore, it is difficult to achieve good low-frequency performance. In view of such defects, this embodiment further proposes a new structural design of the speaker 100 - an additional suspension system 70 is arranged around the basin frame 10 of the speaker 100, and the basin frame 10 of the speaker 100 and the sound system thereon are used as the weight source of vibration. After the basin frame 10 of the speaker 100 and the sound system thereon are loaded into the internal cavity 300 of the housing 200 of the electronic device 1000, the vibration of the sound system on the basin frame 10 causes the air in the internal cavity 300 of the housing 200 of the electronic device 1000 to resonate and drive the basin frame 10 of the speaker 100 and the sound system thereon to vibrate. Because the basin frame 10 of the speaker 100 and the sound system thereon are heavy, the f0 of its edge system is low, thereby supplementing the disadvantage of insufficient low-frequency performance of the sound system on the basin frame 10.

[0093] like Figures 1 to 4 As shown, in an embodiment of the loudspeaker 100 of the present invention, the suspension system 70 includes an edge diaphragm 71 and a spring 73, the edge diaphragm 71 is disposed between the first end 11 and the housing 60, the inner edge of the edge diaphragm 71 is connected to the first end 11, and the outer edge of the edge diaphragm 71 is connected to the housing 60;

[0094] The wave damper 73 is disposed between the second end 13 and the housing 60 . The inner edge of the wave damper 73 is connected to the second end 13 , and the outer edge of the wave damper 73 is connected to the housing 60 .

[0095] It can be understood that under the design of this embodiment, not only can the basin frame 10 be suspended, which is beneficial to the vibration of the basin frame 10 and the sound system thereon, thereby obtaining an expansion of the low-frequency performance of the system; but also the coordinated use of the edge diaphragm 71 and the elastic wave 73 up and down can also make the basin frame 10 and the sound system thereon obtain more stable and reliable vibration performance, reduce the amplitude of the product's swing vibration, thereby reducing the distortion of the system, so as to facilitate the entire system to obtain better low-frequency performance.

[0096] Of course, in other embodiments, only the edge diaphragm 71 may be used as the suspension system; or, the suspension system may be configured in other effective and reasonable ways, which will not be described in detail here.

[0097] like Figures 1 to 4 As shown, in an embodiment of the loudspeaker 100 of the present invention, the outer shell 60, the edge diaphragm 71, the elastic wave 73 and the basin frame 10 enclose a cavity 60c, the side wall of the outer shell 60 is provided with a through hole 60b connecting the outside and the cavity 60c, and the side wall of the basin frame 10 is provided with a leakage hole 10a connecting the space on the side of the edge diaphragm 71 facing away from the sound outlet 20b.

[0098] It can be understood that under the design of this embodiment, through the design of the through hole 60b and the leakage hole 10a, the volume of the rear sound cavity of the vibration system 30 will be expanded, which is conducive to helping the vibration system 30 obtain better low-frequency performance. In addition, through the design of the through hole 60b and the leakage hole 10a, the air behind the vibration system 30 can be better connected with the air in the internal cavity 300 of the housing 200 of the electronic device 1000, so that it is more convenient to cause the resonance of the air behind the vibration system 30 and the air in the internal cavity 300 of the housing 200 of the electronic device 1000 when the vibration system 30 vibrates, thereby better promoting the vibration of the basin frame 10 and the sound system thereon to better compensate for the low frequency.

[0099] Specifically, a plurality of through holes 60b and leakage holes 10a are provided, wherein the plurality of through holes 60b are evenly distributed along the circumference of the outer shell 60, and the plurality of leakage holes 10a are evenly distributed along the circumference of the basin frame 10, so as to help the vibration system 30 obtain more stable vibration performance, thereby obtaining better acoustic performance.

[0100] Of course, in other embodiments, the centering support plate 35 in the present embodiment may be eliminated to facilitate better communication between the air behind the vibration system 30 and the air in the internal cavity 300 of the housing 200 of the electronic device 1000; or other effective and reasonable methods may be used to achieve this, which will not be elaborated here.

[0101] The present invention further provides an electronic device 1000, which includes the speaker 100 as described above. The specific structure of the speaker 100 is referred to the above embodiment. Since the electronic device 1000 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by all the technical solutions of all the above embodiments, which will not be described one by one here.

[0102] It can be understood that the electronic device 1000 can be but is not limited to an ordinary speaker, a smart speaker, etc.

[0103] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A loudspeaker, characterized in that: include: A basin frame, the basin frame having a first end and a second end disposed opposite to each other; A magnetic circuit system, the magnetic circuit system comprising a magnetic circuit part and a bracket part, the magnetic circuit part is inserted in the first end and forms a magnetic gap, the magnetic gap is arranged toward the second end, the bracket part is arranged outside the magnetic circuit part and is used to fix the magnetic circuit part in the basin frame, and the bracket part is provided with a sound outlet hole connecting the outside and the internal space of the basin frame in the direction from the first end to the second end; as well as A vibration system, the vibration system comprising an inner diaphragm, a voice coil, a dust cap and a centering support plate, the voice coil is provided with one end of a voice coil wire inserted in the magnetic gap, the other end of the voice coil is extended toward the second end, the inner diaphragm is accommodated in the basin frame and surrounds the voice coil, the inner edge of the inner diaphragm is connected to the peripheral wall of the voice coil close to the second end, the outer edge of the inner diaphragm is connected to the basin frame, the inner diaphragm divides the internal space of the basin frame into two chambers, the magnetic circuit system and the voice coil wire of the voice coil are located in the chamber on the side of the inner diaphragm facing the sound outlet, the inner diaphragm radiates sound signals outward through the sound outlet, and the dust cap is provided at one end of the voice coil extending toward the second end; The centering support piece is accommodated in the basin frame and surrounds the voice coil. The inner edge of the centering support piece is connected to the peripheral wall of the voice coil, and the outer edge of the centering support piece is connected to the basin frame. The centering support piece is located on the side of the inner diaphragm facing away from the sound outlet.

2. The loudspeaker according to claim 1, characterized in that The support portion comprises: A fixing ring, which is disposed around the opening of the first end in a circumferential direction and fixed on the basin frame, and the fixing ring is spaced apart from the magnetic circuit portion to form the sound outlet hole; and A cantilever, one end of the cantilever is connected to the fixing ring, and the other end of the cantilever is connected to the magnetic circuit part.

3. The loudspeaker according to claim 1, characterized in that The magnetic circuit part comprises: A magnetic yoke, the magnetic yoke is inserted in the first end, and the opening of the magnetic yoke is arranged toward the second end; The inner magnetic circuit portion is arranged in the magnetic yoke, and the side wall of the magnetic yoke surrounds the inner magnetic circuit portion and is spaced from the inner magnetic circuit portion to form the magnetic gap.

4. The loudspeaker according to claim 3, characterized in that The outer surface of the bottom wall of the magnetic yoke is provided with a receiving groove; The speaker further comprises a secondary vibration system and a secondary inner magnetic circuit portion, wherein the secondary inner magnetic circuit portion is arranged in the accommodating groove, and the side wall of the accommodating groove surrounds the secondary inner magnetic circuit portion and is spaced from the secondary inner magnetic circuit portion to form a secondary magnetic gap; The diaphragm cover of the auxiliary vibration system is arranged at the notch of the accommodating groove, one end of the voice coil of the auxiliary vibration system is inserted in the auxiliary magnetic gap, and the other end is connected to the diaphragm of the auxiliary vibration system.

5. The loudspeaker according to any one of claims 1 to 4, characterized in that The speaker also includes a shell and a suspension system. The basin frame is accommodated in the shell and elastically connected to the shell through the suspension system so that the basin frame can vibrate along its axial direction and radiate sound signals to the outside. The shell forms an escape opening corresponding to the opening of the first end.

6. The loudspeaker according to claim 5, characterized in that The suspension system includes an edge diaphragm and a spider, the edge diaphragm is arranged between the first end and the housing, the inner edge of the edge diaphragm is connected to the first end, and the outer edge of the edge diaphragm is connected to the housing; The elastic wave is arranged between the second end and the outer shell, the inner edge of the elastic wave is connected to the second end, and the outer edge of the elastic wave is connected to the outer shell.

7. The loudspeaker according to claim 6, characterized in that The outer shell, the edge diaphragm, the elastic wave and the basin frame enclose a cavity, the side wall of the outer shell is provided with a through hole connecting the outside and the cavity, and the side wall of the basin frame is provided with a leakage hole connecting the space on the side of the edge diaphragm facing away from the sound outlet.

8. An electronic device, characterized in that: Comprising the loudspeaker as claimed in any one of claims 1 to 7.

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