Speaker and electronic device

Abstract

This invention provides a loudspeaker and electronic device. The loudspeaker includes a first sub-shell, a second sub-shell, two vibration systems, a magnetic circuit system, two circuit boards, and two conductive connectors. Each vibration system includes a diaphragm and a voice coil, and each voice coil includes an input terminal and an output terminal. A circuit board is electrically connected to the input and output terminals of a voice coil, respectively. The two conductive connectors are integrally injection molded with the first sub-shell. Each conductive connector includes two connecting parts and an external connection part. The two connecting parts of one conductive connector are electrically connected to the two input terminals of the two voice coils via the two circuit boards, respectively. The two connecting parts of the other conductive connector are electrically connected to the two output terminals of the two voice coils via the two circuit boards, respectively. The external connection part extends outside the first sub-shell and is used for communication with an external circuit. This invention has the advantages of reducing the space occupied by the loudspeaker in the overall device and reducing the difficulty of installation.

Description

Technical Field

[0001] This invention relates to the field of loudspeaker technology, and more particularly to a loudspeaker and electronic device. Background Technology

[0002] For speakers with dual vibration systems, the space required for installation in the main unit is relatively large, and the installation accuracy is difficult to guarantee.

[0003] Therefore, it is necessary to provide a new speaker and electronic device to solve or at least alleviate the aforementioned technical defects. Summary of the Invention

[0004] The main objective of this invention is to provide a loudspeaker and electronic device that addresses the technical problems of existing dual-vibration system loudspeakers occupying a large space when installed in the main unit, and the difficulty in ensuring installation accuracy.

[0005] To achieve the above objectives, according to one aspect of the present invention, a loudspeaker is provided, comprising: A frame, the frame comprising a first subshell and a second subshell that cooperate with each other; Two vibration systems, each of which includes a diaphragm and a voice coil connected to the diaphragm, the two diaphragms being disposed on both sides of the frame and enclosing the frame to form a receiving space; each of the voice coils includes an input terminal and an output terminal; A magnetic circuit system, wherein the magnetic circuit system is disposed within the receiving space; Two circuit boards, one of which is electrically connected to the input terminal and the output terminal of the voice coil, respectively; Two conductive connectors are located at one end of the speaker along its length and are integrally injection molded with the first sub-shell. Each conductive connector includes two connecting parts and an external part. The two connecting parts of one conductive connector are electrically connected to the two input terminals of the two voice coils via two circuit boards, respectively. The two connecting parts of the other conductive connector are electrically connected to the two output terminals of the two voice coils via two circuit boards, respectively. The external part extends outside the first sub-shell and is used to communicate with an external circuit.

[0006] In some embodiments, the two diaphragms are a first diaphragm and a second diaphragm, the two voice coils are a first voice coil and a second voice coil, the two input terminals are a first input terminal and a second input terminal, and the two output terminals are a first output terminal and a second output terminal. The first diaphragm and the second diaphragm are respectively disposed on both sides of the frame and enclosed by the frame to form a receiving space. The first voice coil includes a first input terminal and a first output terminal, and the second voice coil includes a second input terminal and a second output terminal. One circuit board is electrically connected to the first input terminal and the first output terminal, and the other circuit board is electrically connected to the second input terminal and the second output terminal; The two conductive connectors include a first conductive connector and a second conductive connector. The first conductive connector includes two first connecting parts and a first external part. The two first connecting parts are electrically connected to a first input terminal and a second input terminal respectively through the two circuit boards. The second conductive connector includes two second connecting parts and a second external part. The two second connecting parts are electrically connected to a first output terminal and a second output terminal respectively through the two circuit boards.

[0007] In some embodiments, the conductive connector includes a body and an external portion extending from the body toward the outside of the frame. The body includes a vertical plate and a first horizontal plate and a second horizontal plate respectively disposed on opposite sides of the vertical plate. The vertical plate extends along the height direction of the speaker, and each of the first horizontal plate and the second horizontal plate is provided with a connecting portion.

[0008] In some embodiments, along the width direction of the speaker, the first horizontal plate and the second horizontal plate extend toward the same side of the vertical plate; and / or, The first horizontal plate and the second horizontal plate are parallel to each other.

[0009] In some embodiments, the conductive connector further includes an extension section connected to the side of the first horizontal plate away from the vertical plate and extending toward the second horizontal plate, with a gap between the extension section and the second horizontal plate.

[0010] In some embodiments, the dimension of the protruding section in the longitudinal direction of the speaker is defined as A1, and the dimension of the first cross plate in the longitudinal direction of the speaker is defined as A2, then: A1 <A2。

[0011] In some embodiments, the second horizontal plate includes a parallel portion, a transition portion, and a connecting portion connected sequentially along the width direction. The parallel portion is disposed opposite to the first horizontal plate. The first horizontal plate, the vertical plate, the protruding section, and the parallel portion cooperate to form an accommodating space. The external portion extends from the connecting portion toward the outside of the frame.

[0012] In some embodiments, the parallel portion, the transition portion, and the connecting portion cooperate to form a clearance notch, the clearance notch being disposed on the side facing the center of the speaker, and the protruding section being disposed corresponding to the transition portion.

[0013] In some embodiments, the two connecting portions are a first connecting portion and a second connecting portion, the first connecting portion is provided on the first horizontal plate, the second connecting portion is provided on the second horizontal plate, the first connecting portion is provided on the side of the first horizontal plate away from the second horizontal plate, and the second connecting portion is provided on the side of the second horizontal plate facing the first horizontal plate. And / or, the first connecting portion and the second connecting portion are spaced apart in the width direction, and the first connecting portion and the second connecting portion are spaced apart in the height direction.

[0014] In some embodiments, the conductive connector further includes an extension disposed on the body, the extension being inclined from the parallel portion toward a direction away from the parallel portion, the external portion being inclined from the body toward a direction away from the body, and the inclination direction of the extension being opposite to the inclination direction of the external portion.

[0015] In some embodiments, the two external portions of the two conductive connectors are disposed close to each other; And / or, the external part is a conductive pin.

[0016] In some embodiments, the first sub-shell has an end face facing the second sub-shell, the end face having a groove, the two connecting portions of the two first horizontal plates are respectively exposed on the end faces on both sides of the groove and are respectively electrically connected to two pads of the same circuit board, and the two connecting portions of the two second horizontal plates are at least partially exposed on the bottom surface of the groove and are respectively electrically connected to two pads of another circuit board. According to one aspect of the present invention, an electronic device is provided, the electronic device comprising a housing and a speaker as described above disposed within the housing.

[0017] In the above solution, the loudspeaker includes a frame, two vibration systems, a magnetic circuit system, two circuit boards, and two conductive connectors. The frame includes a first sub-shell and a second sub-shell that cooperate with each other. Each vibration system includes a diaphragm and a voice coil connected to the diaphragm. The two diaphragms are respectively located on both sides of the frame and enclose the frame to form a receiving space. Each voice coil includes an input terminal and an output terminal. The magnetic circuit system is disposed within the receiving space. A circuit board is electrically connected to the input terminal and output terminal of a voice coil, respectively. The two conductive connectors are located at one end of the loudspeaker along its length and are integrally injection molded with the first sub-shell. Each conductive connector includes two connecting parts and an external part. The two connecting parts of one conductive connector are electrically connected to the two input terminals of the two voice coils through the two circuit boards, respectively. The two connecting parts of the other conductive connector are electrically connected to the two output terminals of the two voice coils through the two circuit boards, respectively. The external part extends outside the first sub-shell and is used to conduct electricity to an external circuit. This invention has the advantages of reducing the space occupied by the loudspeaker when installed on the whole unit and reducing the difficulty of installation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the loudspeaker according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the loudspeaker according to an embodiment of the present invention; Figure 3 This is a partial three-dimensional structural diagram of the loudspeaker from one perspective according to an embodiment of the present invention; Figure 4 This is a partial three-dimensional structural schematic diagram of the speaker from another perspective according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the circuit board, conductive connectors, and voice coil of the loudspeaker according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the circuit board, conductive connectors, and voice coil of the loudspeaker according to an embodiment of the present invention from another perspective; Figure 7 This is a three-dimensional structural diagram of the circuit board and conductive connectors of the speaker according to an embodiment of the present invention; Figure 8 This is a three-dimensional structural schematic diagram of the conductive connector of the loudspeaker according to an embodiment of the present invention; Figure 9This is a three-dimensional structural schematic diagram of the conductive connector of the loudspeaker according to an embodiment of the present invention from another perspective; Figure 10 This is a partial three-dimensional structural diagram of the speaker according to an embodiment of the present invention; Figure 11 for Figure 10 A magnified structural diagram at point H; Figure 12 Figure 10 A schematic diagram of the exploded structure; Figure 13 This is a three-dimensional structural diagram of the loudspeaker magnetic circuit system according to an embodiment of the present invention. Label Explanation: 100. Speaker; 10. Frame; 11. First subshell; 12. Second subshell; 20. Circuit board; 201. Pad; 30. Magnetic circuit system; 40. Diaphragm; 50. Voice coil; 51. Input terminal; 52. Output terminal; 53. First voice coil; 54. Second voice coil; 60. Conductive connector; 70. Gap; 80. Groove; 31. Magnetic yoke; 311. Top; 3111. First side; 3112. Second side; 312. Bottom; 313. Side wall; 315. Receiving groove; 318. First clearance hole; 32. Central magnet; 33. Side magnet; 61. External part; 62. Body; 621. First horizontal plate; 622. Second horizontal plate; 6221. Parallel part; 6222. Transition part; 6223. Connecting part; 62231. First connecting part; 62232. Second connecting part; 623. Vertical plate; 624. Extended section; 625. Accommodating space; 626. Avoidance notch; 627. Extension part.

[0020] The realization of the objective, functional characteristics and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0023] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0024] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0025] Dual-vibration system loudspeakers are increasingly used in high-end electronic devices due to their ability to improve acoustic performance. These loudspeakers typically consist of two independent vibration systems, each containing a diaphragm, voice coil, and corresponding electrical connections. In traditional designs, the two voice coils require independent input and output electrical connections, necessitating four separate conductive terminals (pins) on the loudspeaker frame. These four pins are usually located on the upper and lower shells of the loudspeaker to meet the soldering requirements of external circuit boards.

[0026] The inventors noted that this four-pin design presented several challenges in practical applications. First, the four pins significantly increased the space occupied by the speaker in the overall device, contradicting the trend of consumer electronics devices continuously pursuing thinner, lighter, and more integrated designs. Second, the installation of the four pins required simultaneous installation at four points to ensure accurate positioning, which undoubtedly increased the installation difficulty. Furthermore, four independent inserts (pins) also meant a greater quantity of materials and higher costs.

[0027] In order to solve the problems of space occupation and assembly accuracy caused by multiple pins while ensuring the performance of the dual vibration system, the inventors conducted in-depth research and repeated attempts. The conventional approach of relevant technicians is to optimize the pin layout within the existing architecture, but it is difficult to fundamentally reduce the number of pins.

[0028] After careful consideration, the inventors creatively made breakthroughs in the integration of electrical connection paths and the structural design of conductive components. By innovatively redesigning the form and function of the conductive connector, they were able to integrate two electrical connection points on a single physical connector, each corresponding to the same polarity terminal of the two voice coils. This design integrates the original four independent electrical connection paths into a single conductive connector, effectively halving the number of pins required.

[0029] Reference Figures 1 to 6According to one aspect of the present invention, a loudspeaker 100 is provided, comprising a frame 10, a magnetic circuit system 30, two vibration systems, two circuit boards 20, and two conductive connectors 60; the frame 10 includes a first sub-shell 11 and a second sub-shell 12 that cooperate with each other; each vibration system includes a diaphragm 40 and a voice coil 50 connected to the diaphragm 40; the two diaphragms 40 are respectively disposed on both sides of the frame 10 and enclose the frame 10 to form a receiving space; each voice coil 50 includes an input terminal 51 and an output terminal 52; the magnetic circuit system 30 is disposed within the receiving space; a circuit board 20 corresponds to the input terminal 51 of a voice coil 50. The output terminal 52 is electrically connected; two conductive connectors 60 are located at one end of the speaker 100 along its length and are integrally molded with the first sub-shell 11. Each conductive connector 60 includes two connecting parts 6223 and an external part 61. The two connecting parts 6223 of one conductive connector 60 are electrically connected to the two input terminals 51 of the two voice coils 50 through two circuit boards 20, respectively. The two connecting parts 6223 of the other conductive connector 60 are electrically connected to the two output terminals 52 of the two voice coils 50 through two circuit boards 20, respectively. The external part 61 extends to the outside of the first sub-shell and is used to communicate with external circuits.

[0030] In this embodiment, the frame 10 constitutes the main support structure of the speaker 100. Two vibration systems are located on both sides of the frame 10, with the diaphragm 40 of each system used for sound generation and the voice coil 50 being the electromagnetic component driving the vibration of the diaphragm 40. Each voice coil 50 has two terminals, an input terminal 51 and an output terminal 52, to form a current loop. A magnetic circuit system 30 is disposed within the housing space enclosed by the two diaphragms 40 and the frame 10, and is used to provide the magnetic field driving the movement of the voice coil 50. The key improvement of this application includes at least the improvement of the electrical connection structure: the input terminal 51 and output terminal 52 of each voice coil 50 are not directly led out, but are first combined through an integrated circuit board 20. Specifically, one circuit board 20 electrically connects the input terminal 51 and output terminal 52 of one voice coil 50 together, and another circuit board 20 electrically connects the input terminal 51 and output terminal 52 of another voice coil 50 together. The two conductive connectors 60 are integrated with the first sub-shell 11 by injection molding, ensuring the structural stability. Each conductive connector 60 is designed with two connecting parts 6223 and one external connection part 61. One conductive connector 60 is specifically responsible for the input current path of the two voice coils 50. Its two connecting parts 6223 are connected to the input terminals 51 of the two voice coils 50 through the two circuit boards 20, respectively, and its external connection part 61 extends out of the first sub-shell 11 to connect to the positive terminal of the external circuit. The other conductive connector 60 is specifically responsible for the output current path of the two voice coils 50. Its two connecting parts 6223 are connected to the output terminals 52 of the two voice coils 50 through the two circuit boards 20, respectively, and its external connection part 61 extends out of the first sub-shell 11 to connect to the negative terminal of the external circuit. With this architecture, the four independent electrical connection lines of the two voice coils 50 are integrated into external connections through only two conductive connectors 60, which is equivalent to reducing the number of pins from four to two. This reduces the number of external pins, thereby reducing the space occupied by the speaker 100 and reducing the number of installation points from four to two, thus simplifying installation. This embodiment has the advantages of reducing the space occupied by the speaker 100 when it is installed on the whole unit, and reducing the difficulty of installation.

[0031] Reference Figures 1 to 6In some embodiments, the two diaphragms 40 are respectively a first diaphragm 40 and a second diaphragm 40, the two voice coils 50 are respectively a first voice coil 53 and a second voice coil 54, the two input terminals 51 are respectively a first input terminal 51 and a second input terminal 52, and the two output terminals are respectively a first output terminal 52 and a second output terminal 52. The first diaphragm 40 and the second diaphragm 40 are respectively disposed on both sides of the frame 10 and enclose the frame 10 to form a receiving space; the first voice coil 53 includes a first input terminal 51 and a first output terminal 52, and the second voice coil 54 includes a second input terminal 51 and a second output terminal 52; one circuit board 20 is electrically connected to the first input terminal 51 and the first output terminal 52, and another circuit board 20 is electrically connected to the second input terminal 51 and the first output terminal 52. 1. The first and second output terminals 52 are electrically connected; the two conductive connectors 60 include a first conductive connector 60 and a second conductive connector 60. The first conductive connector 60 includes two first connecting parts 62231 and a first external part 61. The two first connecting parts 62231 are electrically connected to the first input terminal 51 and the second input terminal 51 through two circuit boards 20, respectively. The second conductive connector 60 includes two second connecting parts 62232 and a second external part 61. The two second connecting parts 62232 are electrically connected to the first output terminal 52 and the second output terminal 52 through two circuit boards 20, respectively. The two external parts 61, namely the first external part 61 and the second external part 61, extend to the outside of the first sub-shell 11 and are used to conduct to external circuits.

[0032] This embodiment is provided to more clearly illustrate the structure of the previous embodiment, and the components in the previous embodiment are named and their relationships defined in more specific terms. The first vibration system and the second vibration system are physically and electrically symmetrical. This embodiment further clarifies the connection relationships: there are two circuit boards 20. The first circuit board 20 is connected to the first voice coil 53, and the first input terminal 51 and the first output terminal 52 of the first voice coil 53 are electrically connected inside the circuit board 20; the second circuit board 20 is connected to the second voice coil 54, specifically connecting the second input terminal 51 and the second output terminal 52 of the second voice coil 54. The first conductive connector 60 is defined as a common path for the input current. Its two first connecting parts 62231 are connected, one to the first input terminal 51 of the first circuit board 20 and the other to the second input terminal 51 of the second circuit board 20, serving as the total current input port. Similarly, the second conductive connector 60 is defined as the common return path for the output current. Its two second connection parts 62232 are respectively connected to the output terminal connection points on the two circuit boards 20, and its second external connection part 61 serves as the overall current output port. This division makes the circuit of the entire dual voice coil 50 system clearer and facilitates understanding and implementation.

[0033] Reference Figures 7 to 9 In some embodiments, the conductive connector 60 includes a body 62 and an external portion 61 extending from the body 62 toward the outside of the first sub-shell 11. The body 62 includes a vertical plate 623 and a first horizontal plate 621 and a second horizontal plate 622 respectively disposed on opposite sides of the vertical plate 623. The vertical plate 623 extends along the height direction of the speaker 100. A connecting portion 6223 is disposed on the first horizontal plate 621 and the second horizontal plate 622.

[0034] It should be noted that in this embodiment, the length direction refers to the length direction of the speaker 100, the width direction refers to the width direction of the speaker 100, and the height direction refers to the height direction of the speaker 100. The length direction in this embodiment is as follows: Figure 8 As indicated by the middle arrow X, the width direction is as follows: Figure 8 As indicated by the middle arrow Y, the height direction is as follows: Figure 8 As indicated by arrow Z, this embodiment defines the specific mechanical structure of the conductive connector 60. The conductive connector 60 is not a simple straight pin, but a metal insert with a complex three-dimensional structure. Its main body, called the body 62, is used for injection molding and internal connection with the first sub-shell 11. The external portion 61 extends outward from the body 62 and is used for external welding. The body 62 includes a vertical plate 623 arranged along the height direction of the speaker 100, which provides the main structural support and injection molding anchor points. On opposite sides of the vertical plate 623, a first horizontal plate 621 and a second horizontal plate 622 extend integrally. The first horizontal plate 621 and the second horizontal plate 622 are spatially offset, each supporting a connecting portion 6223. This structure allows a single conductive connector 60 to collect or distribute current from two spatially separated points, namely the two connecting portions 6223 on the first horizontal plate 621 and the second horizontal plate 622. Thus, by setting the vertical plate 623 in the vertical direction, that is, in the height direction of the speaker 100, the two connecting portions 6223 are staggered, which facilitates the connection of the connecting portion 6223 to the circuit board 20 and reduces the risk of interference.

[0035] Reference Figure 8 and Figure 9 In some embodiments, the first horizontal plate 621 and the second horizontal plate 622 extend toward the same side of the vertical plate 623 along the width direction of the speaker 100; in other embodiments, the first horizontal plate 621 and the second horizontal plate 622 are parallel to each other.

[0036] This embodiment further defines the extending direction and relative position of the first horizontal plate 621 and the second horizontal plate 622. Both the first horizontal plate 621 and the second horizontal plate 622 extend towards the same side of the vertical plate 623. This same-side extension layout facilitates the centralized arrangement of the two connecting parts 6223 within the same area inside the speaker 100, making it easier to align and weld with corresponding solder points on the two circuit boards 20 located on the same side, simplifying the assembly process and reducing space occupation, resulting in a smaller overall space occupied by the conductive connector 60. In other embodiments, the first horizontal plate 621 and the second horizontal plate 622 are parallel to each other. The parallel structure ensures that the plane containing the two connecting parts 6223 is defined, which helps to ensure height consistency during welding and makes the positioning and demolding of the conductive connector 60 in the injection mold more stable and reliable. These two features can exist individually or simultaneously. When both exist simultaneously, the two horizontal plates extend on the same side and are parallel to each other, resulting in the most regular structure and improved manufacturing and assembly processability.

[0037] Reference Figure 8 and Figure 9 In some embodiments, the conductive connector 60 further includes an extension section 624, which is connected to the side of the first horizontal plate 621 away from the vertical plate 623 and extends toward the second horizontal plate 622. A gap is provided between the extension section 624 and the second horizontal plate 622.

[0038] This embodiment adds a protruding section 624 to the conductive connector 60. This protruding section 624 originates from the free end of the first horizontal plate 621, i.e., the end away from the vertical plate 623, and bends towards the second horizontal plate 622. The end of the protruding section 624 maintains a gap with the second horizontal plate 622, and the two do not contact each other. This protruding section 624 serves multiple functions. First, it increases the mechanical strength and stability of the first horizontal plate 621. The first horizontal plate 621 has a connecting part 6223 for welding to the circuit board 20. The protruding section 624 reduces the risk of the connecting part 6223 bending during welding, thus improving the strength of the first horizontal plate 621. Second, the gap formed between the protruding section 624 and the second horizontal plate 622 can be filled with molding compound during subsequent injection molding, forming a "plastic hook," thereby greatly enhancing the tensile strength and torsional stability of the conductive connector 60 within the plastic frame 10, preventing it from loosening.

[0039] Reference Figure 8 In some embodiments, the dimension of the protruding segment 624 in the length direction of the speaker 100 is defined as A1, and the dimension of the first horizontal plate 621 in the length direction of the speaker 100 is defined as A2. Then: A1 <A2。

[0040] This embodiment defines the dimensions of the protruding section 624. The length direction refers to the third dimension perpendicular to the height and width directions. Here, it is specified that the length dimension A1 of the protruding section 624 is smaller than the length dimension A2 of the first horizontal plate 621. This means that the protruding section 624 does not completely cover the entire width of the first horizontal plate 621. This dimensional design ensures that the protruding section 624 has sufficient structural functionality without excessively increasing the overall volume and material usage of the conductive connector 60. Simultaneously, the smaller length dimension of the protruding section 624 provides clearance to the side where the circuit board 20 is mounted.

[0041] Reference Figure 8 and Figure 9 In some embodiments, the second horizontal plate 622 includes a parallel portion 6221, a transition portion 6222, and a connecting portion 6223 connected sequentially along the width direction. The parallel portion 6221 is disposed opposite to the first horizontal plate 621. The first horizontal plate 621, the vertical plate 623, the protruding section 624, and the parallel portion 6221 cooperate to form an accommodating space 625. The external portion 61 extends from the connecting portion 6223 toward the outside of the first sub-shell 11.

[0042] This embodiment refines the structure of the second horizontal plate 622. The second horizontal plate 622 is not a simple flat plate; it consists of three sections: a parallel section 6221, a transition section 6222, and a connecting section 6223, all of which can be arranged on the same plane. The parallel section 6221 is approximately parallel to the first horizontal plate 621 in the width direction and is positioned opposite to it in the height direction. This relative relationship allows the four parts—the first horizontal plate 621, the vertical plate 623, the protruding section 624, and the parallel section 6221—to enclose a rectangular or square cavity, namely, an accommodating space 625. This accommodating space 625 can accommodate the molding compound during molding, and after molding, it can increase the connection area between the first sub-shell 11 and the conductive connector 60, improving the reliability of the connection between the conductive connector 60 and the first sub-shell 11. The connecting section 6223 is the specific location on the second horizontal plate 622 used for welding. The external connection section 61 is the part that extends directly from the connecting section 6223 and is used for connection to external circuitry.

[0043] Reference Figure 8 and Figure 9 In some embodiments, the parallel portion 6221, the transition portion 6222 and the connecting portion 6223 cooperate to form an avoidance notch 626, which is provided on the side facing the center of the speaker 100, and the protruding portion 624 is provided corresponding to the transition portion 6222.

[0044] This embodiment describes a detailed feature of the second horizontal plate 622. The contour formed by the parallel portion 6221, the transition portion 6222, and the connecting portion 6223 forms a recess or notch on the side facing the center of the speaker 100, called the clearance notch 626. Simultaneously, the protruding portion 624 spatially corresponds to the transition portion 6222. Since the circuit board 20 needs to be soldered to the conductive connector 60, the clearance notch 626 is particularly useful for avoiding interference with the circuit board 20, providing sufficient mounting space for the circuit board 20.

[0045] Reference Figure 8 and Figure 9 In some embodiments, the two connecting portions 6223 are respectively a first connecting portion 62231 and a second connecting portion 62232. The first connecting portion 62231 is provided on the first horizontal plate 621, and the second connecting portion 62232 is provided on the second horizontal plate 622. The first connecting portion 62231 is provided on the side of the first horizontal plate 621 away from the second horizontal plate 622, and the second connecting portion 62232 is provided on the side of the second horizontal plate 622 facing the first horizontal plate 621. The first connecting portion 62231 and the second connecting portion 62232 are provided facing the same side along the height direction. In other embodiments, the first connecting portion 62231 and the second connecting portion 62232 are spaced apart in the width direction and spaced apart in the height direction.

[0046] This embodiment clarifies the specific positions and spatial relationships of the first connecting portion 62231 and the second connecting portion 62232. On the same conductive connector 60, the connecting portion 6223 located on the first horizontal plate 621 is called the first connecting portion 62231, and the connecting portion 6223 located on the second horizontal plate 622 is called the second connecting portion 62232. The first connecting portion 62231 is the position on the first horizontal plate 621 used for soldering to the circuit board 20, and the second connecting portion 62232 is the position on the second horizontal plate 622 used for soldering to the circuit board 20. In some embodiments, the first connecting portion 62231 and the second connecting portion 62232 are arranged facing the same side along the height direction of the speaker 100. This means that their welding surfaces or contact surfaces face the same direction, for example, both facing upwards or both facing downwards. This consistency of orientation is very beneficial to the operation of automated welding equipment, as the welding head can operate in the same direction, improving welding efficiency and quality. In other embodiments, the first connecting portion 62231 and the second connecting portion 62232 are spaced apart in both the width and height directions. The height-direction space is naturally formed by the staggered arrangement of the first horizontal plate 621 and the second horizontal plate 622 on both sides of the vertical plate 623, while the width-direction space is due to the staggered arrangement of the two horizontal plates in the width direction. This staggered arrangement in three-dimensional space allows the soldering positions of the two circuit boards 20 to be spatially offset, which is beneficial for avoiding interference and makes the distribution of electrical connection points more dispersed, which is beneficial for heat dissipation and reduces the risk of signal crosstalk.

[0047] Reference Figure 8 and Figure 9 In some embodiments, the conductive connector 60 further includes an extension 627 disposed on the body 62. The extension 627 is inclined from the parallel portion 6221 toward a direction away from the parallel portion 6221, and the external portion 61 is inclined from the body 62 toward a direction away from the body 62. The inclination direction of the extension 627 is opposite to the inclination direction of the external portion 61.

[0048] This embodiment adds two components with specific tilting directions to the conductive connector 60. One is an extension 627 added to the body 62, which starts from the parallel portion 6221 of the second horizontal plate 622 and extends tilted away from the parallel portion 6221. This extension 627 can further increase the contact area and engagement shape between the conductive connector 60 and the injection-molded plastic, enhancing the fixing effect. The other is an external portion 61, which also tilts when extending outward from the body 62, specifically from the connecting portion 6223. The key point is that the tilting direction of the extension 627 is opposite to the tilting direction of the external portion 61. For example, refer to... Figure 9The extension 627 slopes upwards, while the external connector 61 slopes downwards. This reverse-sloping design creates a zigzag-like elastic structure. When the external connector 61 is subjected to thermal stress during soldering of the external circuit board or mechanical stress during installation, the reverse-sloping extension 627 can provide a reverse elastic compensation or stress buffer, helping to prevent stress from being directly transmitted to the precision solder joints of the connector 6223, thereby reducing the risk of solder joint cracking and improving the long-term reliability of the connection.

[0049] Reference Figure 1 and Figure 4 In some embodiments, the two external portions 61 of the two conductive connectors 60 are disposed close to each other. In some embodiments, the external portion 61 is a conductive pin.

[0050] This embodiment defines the relative positional relationship of the external portions 61 of the two conductive connectors 60. The external portions 61 of the first and second conductive connectors 60, i.e., the two protruding pins, are positioned close to each other. Compared to a dispersed arrangement, this close arrangement allows the corresponding pads on the external circuit board to be designed closer together. This helps reduce the space occupied on the external circuit board, meeting the requirements of high-density integration in electronic devices. Simultaneously, the close proximity of the two pins also means shorter connecting wires or traces, which helps reduce line impedance and potential signal interference. From an aesthetic and assembly perspective, having the two pins concentrated in one place also facilitates insertion or soldering operations.

[0051] Reference Figures 10 to 12 In some embodiments, the first sub-shell 11 has an end face facing the second sub-shell 12, the end face having a groove 80, the two connecting portions 6223 of the two first horizontal plates 621 are respectively exposed on the end faces on both sides of the groove 80 and are respectively electrically connected to the two pads 201 of the same circuit board 20, the two connecting portions 6223 of the two second horizontal plates 622 are at least partially exposed on the bottom surface of the groove 80 and are respectively electrically connected to the two pads 201 of the other circuit board 20, avoiding interference during electrical connection and facilitating assembly.

[0052] In related technologies, four pins are respectively disposed on the upper and lower housings, namely the first sub-housing 11 and the second sub-housing 12 described in this embodiment. During the assembly of the first sub-housing 11 and the second sub-housing 12, even slight fluctuations in assembly tolerances can directly lead to cumulative deviations in the final position of the four pins. This cumulative positional deviation makes it difficult to accurately position and solder the pins to the external circuit board, increases the production defect rate, and also restricts the efficiency of automated production. This embodiment not only frees up valuable overall space, but also completely eliminates the pin positional problem caused by assembly deviations between the upper and lower housings, thus improving product consistency and reliability, because two pins can be integrated on the same sub-housing.

[0053] This embodiment clarifies the specific structure of the speaker 100 frame 10 and the integration scheme of key components. The frame 10 is assembled from two parts: a first sub-shell 11 and a second sub-shell 12. All conductive connectors 60 are integrally molded with the first sub-shell 11 using an injection molding process. This means that the first sub-shell 11 is the main electrical connection and support carrier. The external portions 61 of the two conductive connectors 60 extend from specific positions on the first sub-shell 11, becoming the only external electrical interface of the entire speaker 100. Here, the first sub-shell 11 can be either an upper shell or a lower shell. At the same time, two circuit boards 20 for the bus voice coil 50 terminals are also fixedly mounted on the first sub-shell 11. This design integrates all the key electrical connection interfaces on the first sub-shell 11. During assembly, it is only necessary to ensure the alignment accuracy between the solder points of the circuit board 20 on the first sub-shell 11 and the connection portions 6223 of the conductive connectors 60. The second sub-shell 12 mainly serves as a seal and auxiliary support. This architecture, which integrates both external connectors 61 onto the first sub-shell 11, fundamentally eliminates the pin position deviation problem caused by assembly tolerances between the first sub-shell 11 and the second sub-shell 12. Furthermore, the positional accuracy of all external power interfaces depends solely on the manufacturing precision of the first sub-shell 11 itself, significantly improving product consistency, reliability, and production efficiency.

[0054] Reference Figure 2 , Figure 3 , Figure 13 The magnetic circuit system 30 includes a magnetic yoke 31, and a central magnet 32 ​​and a side magnet 33 disposed on the magnetic yoke 31. The side magnet 33 is located outside the central magnet 32. The side magnet 33 and the central magnet 32 ​​respectively form two magnetic gaps with the magnetic yoke 31 to accommodate two voice coils 50. Parts of the two voice coils 50 are respectively inserted into the two magnetic gaps.

[0055] In some embodiments, the yoke 31 includes a bottom 312 located at a central position, sidewalls 313 connected to the periphery of the bottom 312, and a top 311 connected to the periphery of the sidewalls 313, wherein the top 311 and the bottom 312 have a height difference in the height direction of the speaker 100. Specifically, the top 311 includes two first sides 3111 located on both sides of the bottom 312 along the length direction of the speaker 100 and two second sides 3112 located on both sides of the bottom 312 along the width direction of the speaker 100, the two first sides 3111 and the two second sides 3112 being alternately connected. Two sidewalls 313 are included, each connected to both sides of the bottom 312 along the width direction of the speaker 100, and each sidewall 313 is connected to one of the two second sides 3112. The central magnet 32 ​​is located within the receiving groove 315 enclosed by the two side walls 313 and the bottom 312, forming a magnetic gap with the side walls. The side magnet 33 is located at the top 311 and outside the side walls 313, forming another magnetic gap with the side walls. The top 311 of the yoke 31 is higher than the bottom 312, leaving space for the movement of the voice coil 50 and the diaphragm 40.

[0056] Reference Figure 3 , Figure 13 In some embodiments, the voice coil 50 includes a first end and a second end arranged along its length. The circuit board 20 is disposed corresponding to the first end, and the magnetic yoke 31 has two first clearance holes 318 in the region corresponding to the first end. The two first clearance holes 318 are arranged along the width direction. Specifically, the two first clearance holes 318 are respectively disposed in the region of the top 311 of the magnetic yoke 31 opposite to the corner of the voice coil 50. The first clearance holes 318 can serve to avoid the circuit board 20. At the same time, the connection of the first clearance holes 318 also facilitates the airflow in the containment space, which has a positive effect on the heat dissipation generated when the voice coil 50 is working, thereby helping to improve the power handling capacity and heat dissipation efficiency of the loudspeaker 100 during long-term operation.

[0057] Reference Figure 4 , Figure 13 In some embodiments, the surface of the central magnet 32 ​​facing away from the yoke 31 is also provided with a central magnetic plate (not shown in the figure); and / or, the surface of the side magnet 33 facing away from the yoke 31 is provided with a side magnetic plate (not shown in the figure).

[0058] This embodiment reveals that various types of magnets can adopt composite structures and clarifies the symmetry of the magnetic circuit. Both the central magnet 32 ​​and the side magnets 33 can have their magnetic field distribution improved by corresponding magnetic guide plates. The composite structure of magnets and magnetic guide plates can more effectively converge and guide magnetic lines of force into the magnetic gap, improving magnetic field strength and uniformity, thereby enhancing electroacoustic conversion efficiency.

[0059] According to another aspect of the present invention, the present invention also provides an electronic device, which includes a housing and a speaker 100 as described above disposed within the housing. This embodiment applies the aforementioned speaker 100 to a larger product system, namely, an electronic device. This electronic device can be a smartphone, tablet computer, laptop computer, smartwatch, headphones, or any device requiring audio output. It includes a housing as an external protective and support structure for the device. Since the electronic device incorporates all the technical solutions of any of the above embodiments, it possesses at least all the beneficial effects brought by all the above technical solutions, which will not be elaborated further here.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit the patent scope of this invention. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that, under the technical concept of this invention, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; or they can be directly / indirectly applied to other related technical fields. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A loudspeaker, characterized by include: A frame, the frame comprising a first subshell and a second subshell that cooperate with each other; Two vibration systems, each of which includes a diaphragm and a voice coil connected to the diaphragm, the two diaphragms being disposed on both sides of the frame and enclosing the frame to form a receiving space; each of the voice coils includes an input terminal and an output terminal; A magnetic circuit system, wherein the magnetic circuit system is disposed within the receiving space; Two circuit boards, one of which is electrically connected to the input terminal and the output terminal of the voice coil, respectively; Two conductive connectors are located at one end of the speaker along its length and are integrally injection molded with the first sub-shell. Each conductive connector includes two connecting parts and an external part. The two connecting parts of one conductive connector are electrically connected to the two input terminals of the two voice coils via two circuit boards, respectively. The two connecting parts of the other conductive connector are electrically connected to the two output terminals of the two voice coils via two circuit boards, respectively. The external part extends outside the first sub-shell and is used to communicate with an external circuit.

2. The loudspeaker of claim 1, wherein, The two diaphragms are a first diaphragm and a second diaphragm, the two voice coils are a first voice coil and a second voice coil, the two input terminals are a first input terminal and a second input terminal, and the two output terminals are a first output terminal and a second output terminal. The first diaphragm and the second diaphragm are respectively disposed on both sides of the frame and enclosed by the frame to form a receiving space. The first voice coil includes a first input terminal and a first output terminal, and the second voice coil includes a second input terminal and a second output terminal. One circuit board is electrically connected to the first input terminal and the first output terminal, and the other circuit board is electrically connected to the second input terminal and the second output terminal; The two conductive connectors include a first conductive connector and a second conductive connector. The first conductive connector includes two first connecting parts and a first external part. The two first connecting parts are electrically connected to a first input terminal and a second input terminal respectively through the two circuit boards. The second conductive connector includes two second connecting parts and a second external part. The two second connecting parts are electrically connected to a first output terminal and a second output terminal respectively through the two circuit boards.

3. The loudspeaker of claim 1, wherein, The conductive connector includes a body and an external portion extending from the body toward the outside of the frame. The body includes a vertical plate and a first horizontal plate and a second horizontal plate respectively disposed on opposite sides of the vertical plate. The vertical plate extends along the height direction of the speaker. Each of the first horizontal plate and the second horizontal plate is provided with a connecting portion.

4. The loudspeaker of claim 3, wherein, Along the width direction of the loudspeaker, the first horizontal plate and the second horizontal plate extend toward the same side of the vertical plate; and / or, The first horizontal plate and the second horizontal plate are parallel to each other.

5. The loudspeaker according to claim 4, characterized in that, The conductive connector further includes an extension section, which is connected to the side of the first horizontal plate away from the vertical plate and extends toward the second horizontal plate. A gap is provided between the extension section and the second horizontal plate.

6. The loudspeaker according to claim 5, characterized in that, Let A1 be the dimension of the protruding section along the length of the speaker, and A2 be the dimension of the first horizontal plate along the length of the speaker. Then: A1 <A2。 7. The loudspeaker according to claim 5, characterized in that, The second horizontal plate includes a parallel portion, a transition portion, and a connecting portion connected sequentially along the width direction. The parallel portion is disposed opposite to the first horizontal plate. The first horizontal plate, the vertical plate, the protruding section, and the parallel portion cooperate to form an accommodating space. The external portion extends from the connecting portion toward the outside of the frame.

8. The loudspeaker according to claim 7, characterized in that, The parallel portion, the transition portion, and the connecting portion cooperate to form an avoidance notch, which is located on the side facing the center of the speaker, and the protruding section is provided corresponding to the transition portion.

9. The loudspeaker according to claim 7, characterized in that, The two connecting parts are a first connecting part and a second connecting part. The first connecting part is provided on the first horizontal plate, and the second connecting part is provided on the second horizontal plate. The first connecting part is provided on the side of the first horizontal plate away from the second horizontal plate, and the second connecting part is provided on the side of the second horizontal plate facing the first horizontal plate. And / or, the first connecting portion and the second connecting portion are spaced apart in the width direction, and the first connecting portion and the second connecting portion are spaced apart in the height direction.

10. The loudspeaker according to claim 5, characterized in that, The conductive connector further includes an extension portion disposed on the body, the extension portion being inclined from the parallel portion toward a direction away from the parallel portion, and the external portion being inclined from the body toward a direction away from the body, the inclination direction of the extension portion being opposite to the inclination direction of the external portion.

11. The loudspeaker according to any one of claims 3 to 10, characterized in that, The two external portions of the two conductive connectors are arranged close to each other; And / or, the external part is a conductive pin.

12. The loudspeaker according to any one of claims 3 to 10, characterized in that, The first sub-shell has an end face facing the second sub-shell, the end face having a groove, the two connecting portions of the two first horizontal plates are respectively exposed on the end faces on both sides of the groove and are respectively electrically connected to two pads of the same circuit board, and the two connecting portions of the two second horizontal plates are at least partially exposed on the bottom surface of the groove and are respectively electrically connected to two pads of another circuit board.

13. An electronic device, characterized in that, The electronic device includes a housing and a speaker as described in any one of claims 1 to 12 disposed within the housing.

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