Loudspeaker and electronic equipment

Abstract

The embodiment of the utility model discloses a loudspeaker and an electronic device, a bearing frame is provided with a plurality of accommodating spaces, and when a plurality of sound production units are correspondingly arranged in the plurality of accommodating spaces, the orientations of two adjacent vibrating diaphragms are opposite, and at least parts of the two vibrating diaphragms are staggered in the thickness direction of the vibrating diaphragms. And the vibration amplitude of the loudspeaker and the occupied space are reduced. Therefore, on one hand, the central magnetic part is arranged on the bowl part, so that a magnetic gap corresponding to the voice coil is formed between the side wall part and the central magnetic part. The side wall part is fixedly connected with the bearing frame, so that the connection strength of the magnetic circuit system and the bearing frame is improved. And on the other hand, the sound cavity is formed among the magnetic circuit system, the accommodating space and the vibrating diaphragm, so that the accommodating capacity of the sound cavity is larger, and the sound quality of the loudspeaker and the sound directivity are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic transducer, in particular to a loudspeaker and an electronic device. Background Art

[0002] Speakers are widely used in electronic products such as mobile phones, laptops, and smart watches. Setting multiple sound-generating units in a speaker can improve the sound quality of the speaker, but it will also increase the space occupied by the speaker inside the electronic device. At the same time, multiple sound-generating units will also increase the vibration amplitude of the speaker. How to reduce the space occupied by the speaker and reduce the vibration amplitude of the speaker has become a problem that needs to be solved. Utility Model Content

[0003] In view of this, the embodiment of the utility model provides a speaker and an electronic device, wherein a plurality of sound generating units are respectively arranged in a plurality of accommodation spaces, and the side wall of the bowl is fixedly connected to the support frame, so that the accommodation space, the magnetic circuit system and the diaphragm form a sound cavity, thereby improving the sound quality of the speaker.

[0004] According to a first aspect of an embodiment of the utility model, a speaker is provided, the speaker comprising:

[0005] A carrier frame having a plurality of accommodating spaces; and

[0006] A plurality of sound generating units are disposed in the plurality of accommodating spaces in a one-to-one correspondence, wherein the sound generating units include a diaphragm, a voice coil and a magnetic circuit system, and the two diaphragms of two adjacent sound generating units face in opposite directions and are at least partially staggered in the thickness direction;

[0007] The magnetic circuit system includes a bowl portion and a central magnetic portion, the bowl portion includes a side wall portion, the central magnetic portion is arranged in the bowl portion, and a magnetic gap is formed between the central magnetic portion and the side wall portion, and the voice coil is arranged corresponding to the magnetic gap;

[0008] Wherein, the side wall portion is fixedly connected to the supporting frame, and a sound cavity is formed between the accommodating space and the corresponding magnetic circuit system and the diaphragm.

[0009] Furthermore, the accommodating space comprises an accommodating window, the accommodating window penetrates the supporting frame, and at least part of the central magnetic part is arranged in the accommodating window;

[0010] The bowl portion further comprises a bowl bottom, the bowl bottom is a flat plate structure, the side wall portion is arranged at the edge of the flat plate structure, the flat plate structure comprises a limiting edge, and the supporting frame has a first positioning surface;

[0011] The bowl bottom covers one end of the accommodating window, and the limiting edge is attached to the first positioning surface, and the diaphragm covers the other end of the accommodating window.

[0012] Furthermore, the accommodating space also includes:

[0013] Two fixing grooves are arranged on both sides of the accommodating window, the two fixing grooves extend in parallel and are recessed from one side of the supporting frame to the other side, and the extending direction of the fixing grooves is consistent with the length direction of the diaphragm;

[0014] The bowl portion includes two side wall portions, and the two side wall portions are arranged corresponding to the two fixing grooves, and at least part of the side wall portions is arranged in the corresponding fixing grooves.

[0015] Further, the fixing groove has a communication window, the communication window is located at the opposite side of the two fixing grooves, and the fixing groove is connected with the accommodating window through the communication window;

[0016] The bowl portion is a magnetic conductor, the side wall portion is a flange structure, and the flange structure is folded from the edge of the flat plate structure toward the diaphragm;

[0017] The two flange structures extend into the two fixing grooves respectively and abut against the bottoms of the fixing grooves, and at the same time, the flat plate structure is attracted to the central magnetic part.

[0018] Further, the carrier frame includes a spacing beam;

[0019] The spacing beam has two fixing grooves, which extend along the length direction of the spacing beam and are circumferentially symmetrical with respect to the center of the spacing beam in the cross-sectional direction of the length of the spacing beam.

[0020] Furthermore, the bowl portion further comprises a bowl bottom, the bowl bottom is a flat plate structure, and the flat plate structure is a magnetic conductor;

[0021] The side wall portion includes a first magnet and a first magnetic conductive plate, and the first magnet is attracted between the flat plate structure and the first magnetic conductive plate.

[0022] Further, the carrier frame includes a plurality of side beams, the plurality of side beams are respectively arranged corresponding to the plurality of fixing grooves, and the fixing grooves are formed on a side of the side beam away from the diaphragm;

[0023] The support frame is an injection molded part, and at least a portion of the first magnetic conductive plate is arranged on the inner side of the side beam.

[0024] Furthermore, the fixing groove has two second positioning surfaces, and the two second positioning surfaces are perpendicular to the length direction of the fixing groove;

[0025] The side of the first magnetic conductive plate away from the diaphragm is exposed to the outside of the side beam and is located between the two second positioning surfaces;

[0026] The first magnet is disposed between the two second positioning surfaces and is attracted to the first magnetic conductive plate.

[0027] Further, the plurality of accommodating spaces include a first accommodating space and a second accommodating space, and the accommodating window is formed between two side beams;

[0028] In the depth direction of the accommodating window, the side beams corresponding to the first accommodating space and the second accommodating space are staggered, and a hollow area is formed between two side beams on opposite sides of the first accommodating space and the second accommodating space;

[0029] The first magnet corresponding to the first accommodating space passes through the hollow area and is attracted to the first magnet corresponding to the second accommodating space and the first magnetic conductive plate at the same time.

[0030] In a second aspect, an embodiment of the utility model further provides an electronic device, the electronic device comprising:

[0031] According to the loudspeaker described in the first aspect above.

[0032] The loudspeaker and electronic device of the embodiment of the utility model are provided with a plurality of accommodating spaces on the support frame. When a plurality of sound-emitting units are correspondingly arranged in the plurality of accommodating spaces, the two adjacent diaphragms are oriented in opposite directions and are at least partially staggered in the thickness direction of the diaphragms, thereby reducing the vibration amplitude of the loudspeaker and the space occupied. Thus, on the one hand, the central magnetic portion is arranged in the bowl portion, so that a magnetic gap corresponding to the voice coil is formed between the side wall portion and the central magnetic portion. The side wall portion is fixedly connected to the support frame to increase the connection strength between the magnetic circuit system and the support frame. On the other hand, a sound cavity is formed between the magnetic circuit system, the accommodating space and the diaphragm, so that the sound cavity has a larger capacity, thereby improving the sound quality of the loudspeaker and the directivity of the sound. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0034] Figure 1 It is a structural schematic diagram of a loudspeaker provided in the first embodiment of the utility model;

[0035] Figure 2 It is an exploded schematic diagram of a loudspeaker provided in the first embodiment of the utility model;

[0036] Figure 3 yes Figure 1 Schematic cross-sectional view at AA in the middle;

[0037] Figure 4It is a structural schematic diagram of a carrier, a magnetic circuit system and one side of a voice coil provided by the first embodiment of the utility model;

[0038] Figure 5 It is a structural schematic diagram of the support frame, the magnetic circuit system and the other side of the voice coil provided by the first embodiment of the utility model;

[0039] Figure 6 It is a structural schematic diagram of a speaker provided in the second embodiment of the utility model;

[0040] Figure 7 is an exploded schematic diagram of a loudspeaker provided in the second embodiment of the utility model;

[0041] Figure 8 yes Figure 6 A schematic cross-sectional view of the middle BB;

[0042] Fig. 9 It is a structural schematic diagram of a carrier frame, a magnetic circuit system and one side of a voice coil provided by the second embodiment of the utility model;

[0043] Fig.10 It is a structural schematic diagram of the support frame, magnetic circuit system and the other side of the voice coil provided by the second embodiment of the utility model;

[0044] Fig.11 It is an exploded schematic diagram of the support frame and the first magnetic conductive plate provided in the second embodiment of the utility model.

[0045] Description of reference numerals:

[0046] 1-Carrying frame;

[0047] 11-accommodation space; 111-accommodation window;

[0048] 12- first positioning surface;

[0049] 13-fixing groove; 131-connecting window; 132-second positioning surface;

[0050] 14- Spacer beam;

[0051] 15-side beam;

[0052] 16- hollow area;

[0053] 2- sound unit;

[0054] 21-diaphragm;

[0055] 22-Voice coil;

[0056] 23-Magnetic circuit system;

[0057] 24-bowl portion; 241-side wall portion; 2411-first magnet; 2412-first magnetic conductive plate; 242-bowl bottom; 2421-limiting edge;

[0058] 25-central magnetic part; 251-second magnetic conductive plate; 252-second magnet;

[0059] 26-magnetic gap;

[0060] 3- Sound cavity. DETAILED DESCRIPTION

[0061] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. For those skilled in the art, the present invention can be fully understood without the description of these details. In order to avoid confusing the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0062] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0063] Unless the context clearly requires otherwise, the words "include", "including" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0064] In the description of the present invention, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0065] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected 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 this utility model can be understood according to specific circumstances.

[0066] For ease of explanation, spatially relative terms such as "inside", "outside", "below", "below", "lower", "above", "upper", etc. are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that spatially relative terms may be intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figure is turned over, an element described as being "below" or "below" other elements or features will then be positioned as being "above" the other elements or features. Thus, the example term "below" can include both the orientations of above and below. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0067] Figure 1-Figure 5 The speaker provided by the first embodiment is shown. Figure 1 A schematic diagram of the structure of the loudspeaker in this embodiment. Figure 2 Schematic diagram of an exploded view of the loudspeaker in this embodiment. Figure 3 yes Figure 1 Schematic cross-sectional view at AA in the middle. Figure 4 and Figure 5 2 is a schematic diagram of the structure of the support frame 1, the magnetic circuit system 23 and the voice coil 22 in this embodiment.

[0068] In some embodiments, Figure 1-Figure 5 As shown, the speaker in this embodiment includes two sound generating units 2. The sound generating unit 2 includes a bowl portion 24, and the bowl portion 24 includes a side wall portion 241 and a bowl bottom 242, and the side wall portion 241 and the bowl bottom 242 are an integrally formed structure.

[0069] Figure 6-Figure 11 A speaker provided by the second embodiment is shown. Figure 6 Schematic diagram of the structure of the speaker in this embodiment. Figure 7 Schematic diagram of an exploded view of the loudspeaker of this embodiment. Figure 8 yes Figure 6 Schematic cross-sectional view at the middle BB. Fig. 9 and Fig.10 It is a schematic diagram of the structure of the support frame 1, the magnetic circuit system 23 and the voice coil 22 of this embodiment. Fig.11 2 is an exploded schematic diagram of the support frame 1 and the first magnetic conductive plate 2412 of this embodiment. The outline of the first magnetic conductive plate 2412 in the figure is shown by a thick solid line.

[0070] In some embodiments, Figure 6-Figure 11As shown, the speaker in this embodiment includes two sound generating units 2. The sound generating unit 2 includes a bowl portion 24, and the bowl portion 24 includes a side wall portion 241 and a bowl bottom 242. The side wall portion 241 includes a first magnetic conductive plate 2412 and a first magnet 2411 attracted between the first magnetic conductive plate 2412 and the bowl bottom 242.

[0071] In some embodiments, Figure 1-Figure 2 and Figure 6-Figure 7 As shown, the speaker in this embodiment includes a support frame 1 and a plurality of sound-emitting units 2. The support frame 1 has a plurality of accommodating spaces 11. The support frame 1 uses the accommodating spaces 11 to carry the plurality of sound-emitting units 2. Specifically, the number of the sound-emitting units 2 in the above figure is two, and the diaphragms of the two sound-emitting units 2 face opposite directions and are staggered with each other.

[0072] Further reference Figure 3-Figure 5 As shown, in this embodiment, a plurality of sound-emitting units 2 are arranged in a plurality of accommodating spaces 11 in a one-to-one correspondence. The sound-emitting unit 2 includes a diaphragm 21, a voice coil 22, and a magnetic circuit system 23. The two diaphragms 21 of two adjacent sound-emitting units 2 face in opposite directions and are at least partially staggered in the thickness direction. Thus, the vibrations of the two sound-emitting units 2 can offset each other to a certain extent. At the same time, the overall thickness of the speaker can also be reduced.

[0073] The magnetic circuit system 23 includes a bowl portion 24 and a central magnetic portion 25. The bowl portion 24 includes a side wall portion 241. The central magnetic portion 25 is disposed in the bowl portion 24, and a magnetic gap 26 is formed between the central magnetic portion 25 and the side wall portion 241. The voice coil 22 is disposed corresponding to the magnetic gap 26. The voice coil 22 is acted upon by the Ampere force in the magnetic gap 26, thereby driving the diaphragm 21 to vibrate.

[0074] At the same time, the side wall portion 241 is fixedly connected to the supporting frame 1 , and a sound cavity 3 is formed between the accommodating space 11 and the corresponding magnetic circuit system 23 and the diaphragm 21 .

[0075] The speaker of this embodiment is provided with a plurality of accommodating spaces 11 on the support frame 1. When a plurality of sound-emitting units 2 are correspondingly provided in the plurality of accommodating spaces 11, the two adjacent diaphragms 21 are oriented in opposite directions and are at least partially staggered in the thickness direction of the diaphragm 21, thereby reducing the vibration amplitude of the speaker and the space occupied. Thus, on the one hand, the central magnetic portion 25 is provided in the bowl portion 24, so that a magnetic gap 26 corresponding to the voice coil 22 is formed between the side wall portion 241 and the central magnetic portion 25. The side wall portion 241 is fixedly connected to the support frame 1 to improve the connection strength between the magnetic circuit system 23 and the support frame 1. On the other hand, a sound cavity 3 is formed between the magnetic circuit system 23, the accommodating space 11 and the diaphragm 21, so that the sound cavity 3 has a larger capacity, thereby improving the sound quality and the directivity of the sound of the speaker.

[0076] In some embodiments, Figure 4 As shown, the accommodation space 11 in this embodiment includes an accommodation window 111 . The accommodation window 111 penetrates the supporting frame 1 , and at least a portion of the central magnetic portion 25 is disposed in the accommodation window 111 .

[0077] Further reference Figure 2 and Figure 7 As shown, the bowl portion 24 further includes a bowl bottom 242. The bowl bottom 242 is a flat plate structure, the side wall portion 241 is arranged at the edge of the flat plate structure, the flat plate structure includes a limiting edge 2421, and the support frame 1 has a first positioning surface 12.

[0078] The bowl bottom 242 covers one end of the accommodating window 111 , and the limiting edge 2421 is attached to the first positioning surface 12 . The diaphragm 21 covers the other end of the accommodating window 111 .

[0079] Specifically, the material of the bowl bottom 242 in this embodiment can be a high magnetic permeability material, such as carbon steel. The bowl bottom 242 is used to conduct the magnetic force of the central magnetic part 25 to the side wall part 241 to provide magnetic force to the magnetic gap 26. The limiting edge 2421 is located at the plate edge position of the flat plate structure, and the limiting edge 2421 extends to the side of the accommodating window 111 to limit the position of the bowl part 24 and the supporting frame 1 when the side wall part 241 is fixedly connected to the supporting frame 1.

[0080] In some embodiments, Figure 4 and Figure 7 As shown, the accommodating space 11 further includes two fixing grooves 13. The two fixing grooves 13 are arranged on both sides of the accommodating window 111, and the two fixing grooves 13 extend in parallel and are recessed from one side of the supporting frame 1 to the other side. The extending direction of the fixing grooves 13 is consistent with the length direction of the diaphragm 21.

[0081] Further reference Figure 3 and Figure 8 As shown, the bowl portion 24 includes two side wall portions 241 . The two side wall portions 241 are disposed corresponding to the two fixing grooves 13 , and at least a portion of the side wall portions 241 is disposed in the corresponding fixing grooves 13 .

[0082] Specifically, Figure 1 and Figure 6 As shown, the outer edge of the folding area of ​​the diaphragm 21 in this embodiment is a rounded rectangle. The length direction of the fixing groove 13 is arranged parallel to the long side of the rounded rectangle. As a result, the size of the magnetic gap 26 in the horizontal direction can be configured to be longer, so as to increase the magnetic flux of the voice coil 22 in the magnetic gap 26.

[0083] In some embodiments, Figure 4-Figure 5As shown, the fixing groove 13 has a connecting window 131, and the connecting window 131 is located on the opposite side of the two fixing grooves 13. The fixing groove 13 is connected to the accommodating window 111 through the connecting window 131. Specifically, the fixing groove 13 has a first side wall surface and two second side wall surfaces. Among them, the first side wall surface faces the accommodating window 111, the two second side wall surfaces are perpendicular to the length direction of the diaphragm 21, and the two second side wall surfaces extend from the first side wall surface to the accommodating window 111.

[0084] Further reference Figure 2 , Figure 3 and Figure 5 As shown, the bowl portion 24 is a magnetic conductor, and the side wall portion 241 is a flange structure, which is folded from the edge of the flat plate structure toward the diaphragm 21 .

[0085] The two flange structures extend into the two fixing grooves 13 respectively and abut against the bottom of the fixing grooves 13, and the flat plate structure is attracted to the central magnetic part 25. The flange structure and the two fixing grooves 13 can be fixed together by an adhesive, and the insertion depth of the flange structure can be further positioned by the cooperation between the flange structure and the bottom of the fixing groove 13.

[0086] Preferably, the bowl portion 24 in this embodiment can be made of a steel plate. The steel plate is cut into a cross-shaped structure. The cross-shaped structure includes four side strips extending from the center. Two side strips are folded to form two flange structures. The other two side strips extend horizontally to form two limit edges 2421. As a result, the bowl portion 24 in this embodiment can greatly reduce the manufacturing cost.

[0087] In some embodiments, Figure 3-Figure 4 As shown, the support frame 1 includes a spacing beam 14, and the spacing beam 14 is located between the two accommodating spaces 11. The spacing beam 14 has two fixing grooves 13, and the two fixing grooves 13 extend along the length direction of the spacing beam 14. At the same time, in the cross-sectional direction of the length of the spacing beam 14, the two fixing grooves 13 are symmetrical relative to the center circumference of the spacing beam 14. The spacing beam 14 in this embodiment can simultaneously support the side wall portions 241 of the two bowl portions 24, and at the same time make the two sound-emitting units 2 sound in different directions to improve the sound quality of the speaker. And make the two sound-emitting units 2 more compact.

[0088] In some embodiments, Figure 7-Figure 8 As shown, the bowl portion 24 also includes a bowl bottom 242. The bowl bottom 242 is a flat plate structure, and the flat plate structure is a magnetic conductor. The side wall portion 241 includes a first magnet 2411 and a first magnetic conductive plate 2412, and the first magnet 2411 is attracted between the flat plate structure and the first magnetic conductive plate 2412. Therefore, the magnetic field strength of the magnetic circuit system 23 is increased by the first magnet 2411, and the response speed of the speaker is improved.

[0089] Specifically, the central magnetic portion 25 in this embodiment includes a second magnetic conductive plate 251 and a second magnet 252, and the second magnet 252 is attracted between the second magnetic conductive plate 251 and the bowl bottom 242. The bowl portion 24 includes two side wall portions 241, and the two side wall portions 241 are arranged on both sides of the central magnetic portion 25 and are located at the edge of the flat plate structure. The first magnetic conductive plate 2412 and the opposite side of the second magnetic conductive plate 251 form a magnetic gap 26. In this embodiment, the first magnetic conductive plate 2412 and the second magnetic conductive plate 251 make the magnetic field distribution in the magnetic gap 26 more uniform, and the force on the voice coil 22 during movement is more stable.

[0090] In some embodiments, Figure 10-11 As shown, the support frame 1 includes a plurality of side beams 15. The plurality of side beams 15 are respectively arranged corresponding to a plurality of fixing grooves 13, and the fixing grooves 13 are formed on a side of the side beam 15 away from the diaphragm 21. At the same time, the support frame 1 is an injection molded part, and at least part of the first magnetic conductive plate 2412 is arranged on the inner side of the side beam 15.

[0091] During the manufacturing process of the carrier frame 1 in this embodiment, the first magnetic conductive plate 2412 is set in the side beam 15. When the first magnet 2411 is clamped in the fixing groove 13, the first magnet 2411 can be attracted together with the first magnetic conductive plate 2412 at the same time to simplify the installation process of the speaker.

[0092] In some embodiments, Fig.11 As shown, the fixing slot 13 has two second positioning surfaces 132. The two second positioning surfaces 132 are perpendicular to the length direction of the fixing slot 13. That is, the two second positioning surfaces 132 are the two ends of the fixing slot 13. The side of the first magnetic conductive plate 2412 away from the diaphragm 21 is exposed to the outside of the side beam 15 and is located between the two second positioning surfaces 132. The first magnet 2411 is clamped between the two second positioning surfaces 132 and contacts and attracts the first magnetic conductive plate 2412.

[0093] Specifically, the first magnetic conductive plate 2412 in this embodiment has a first contact surface, which is exposed outside the side beam 15 and located at the bottom area of ​​the fixing groove 13. Therefore, the first magnet 2411 can be directly attracted to the first magnetic conductive plate 2412.

[0094] In some embodiments, Fig.11As shown, the plurality of accommodating spaces 11 include a first accommodating space and a second accommodating space, and an accommodating window 111 is formed between two side beams 15. In the depth direction of the accommodating window 111, the side beams 15 corresponding to the first accommodating space and the second accommodating space are staggered, and a hollow area 16 is formed between two side beams 15 on opposite sides of the first accommodating space and the second accommodating space. That is, the side beam 15 corresponding to the first accommodating space is located below the side beam 15 corresponding to the second accommodating space, so that a hollow area 16 is formed between the side beam 15 corresponding to the first accommodating space and the side beam 15 corresponding to the second accommodating space.

[0095] Further reference Figure 8 As shown, the first magnet 2411 corresponding to the first accommodating space passes through the hollow area 16 and is attracted to the first magnet 2411 corresponding to the second accommodating space and the first magnetic conductive plate 2412 at the same time.

[0096] Specifically, Figure 8 As shown, the N poles of the first magnets 2411 in the first accommodation space and the second accommodation space are both arranged toward the diaphragm 21, and the polarity of the second magnet 252 is opposite to that of the first magnet 2411. At the same time, the polarities of the two first magnets 2411 located in the hollow area 16 are configured to be opposite. As a result, the magnetic forces of the two first magnets 2411 at this position can act on the two sound units 2 at the same time to increase the magnetic field strength in the magnetic circuit system 23. At the same time, the internal structure of the speaker can also be made more compact.

[0097] In an optional implementation, the speaker in the above embodiment may be applied to an electronic device, including but not limited to a mobile phone, a laptop computer, or a smart watch.

[0098] The electronic device of the embodiment of the utility model is provided with a plurality of accommodating spaces 11 on the support frame 1 of the speaker. When the plurality of sound-emitting units 2 are correspondingly arranged in the plurality of accommodating spaces 11, the two adjacent diaphragms 21 are oriented in opposite directions and are at least partially staggered in the thickness direction of the diaphragm 21, thereby reducing the vibration amplitude of the speaker and the space occupied. Thus, on the one hand, the central magnetic portion 25 is arranged on the bowl portion 24, so that a magnetic gap 26 corresponding to the voice coil 22 is formed between the side wall portion 241 and the central magnetic portion 25. The side wall portion 241 is fixedly connected to the support frame 1 to improve the connection strength between the magnetic circuit system 23 and the support frame 1. On the other hand, a sound cavity 3 is formed between the magnetic circuit system 23 and the accommodating space 11 and the diaphragm 21, so that the sound cavity 3 has a larger capacity, thereby improving the sound quality and the directivity of the sound of the speaker.

[0099] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A loudspeaker, characterized in that: The speaker comprises: A carrier frame (1) having a plurality of accommodating spaces (11); and A plurality of sound generating units (2) are arranged in a one-to-one correspondence in the plurality of accommodating spaces (11), the sound generating units (2) comprising a diaphragm (21), a voice coil (22) and a magnetic circuit system (23), the two diaphragms (21) of two adjacent sound generating units (2) facing in opposite directions and at least partially staggered in a thickness direction; The magnetic circuit system (23) comprises a bowl portion (24) and a central magnetic portion (25), the bowl portion (24) comprises a side wall portion (241), the central magnetic portion (25) is arranged in the bowl portion (24), and a magnetic gap (26) is formed between the central magnetic portion (25) and the side wall portion (241), and the voice coil (22) is arranged corresponding to the magnetic gap (26); The side wall portion (241) is fixedly connected to the support frame (1), and a sound cavity (3) is formed between the accommodating space (11) and the corresponding magnetic circuit system (23) and the diaphragm (21).

2. The loudspeaker according to claim 1, characterized in that The accommodating space (11) comprises an accommodating window (111), the accommodating window (111) passes through the supporting frame (1), and at least part of the central magnetic portion (25) is arranged in the accommodating window (111); The bowl portion (24) further comprises a bowl bottom (242), the bowl bottom (242) being a flat plate structure, the side wall portion (241) being arranged at the edge of the flat plate structure, the flat plate structure comprising a limiting edge (2421), and the supporting frame (1) having a first positioning surface (12); The bowl bottom (242) covers one end of the accommodating window (111), and the limiting edge (2421) is attached to the first positioning surface (12), and the diaphragm (21) covers the other end of the accommodating window (111).

3. The loudspeaker according to claim 2, characterized in that The accommodating space (11) further comprises: Two fixing grooves (13) are arranged on both sides of the accommodating window (111), the two fixing grooves (13) extend in parallel and are recessed from one side of the supporting frame (1) to the other side, and the extending direction of the fixing grooves (13) is consistent with the length direction of the diaphragm (21); The bowl portion (24) comprises two side wall portions (241), the two side wall portions (241) are arranged corresponding to the two fixing grooves (13), and at least part of the side wall portions (241) are arranged in the corresponding fixing grooves (13).

4. The loudspeaker according to claim 3, characterized in that The fixing groove (13) has a communication window (131), the communication window (131) is located on opposite sides of the two fixing grooves (13), and the fixing groove (13) is connected to the accommodating window (111) through the communication window (131); The bowl portion (24) is a magnetic conductor, and the side wall portion (241) is a flange structure, wherein the flange structure is folded from the edge of the flat plate structure toward the diaphragm (21); The two flange structures extend into the two fixing grooves (13) respectively and abut against the bottoms of the fixing grooves (13), while the flat plate structure is attracted to the central magnetic part (25).

5. The loudspeaker according to claim 4, characterized in that The carrier frame (1) comprises a spacing beam (14); The spacing beam (14) has two fixing grooves (13), which extend along the length direction of the spacing beam (14), and in the cross-sectional direction of the length of the spacing beam (14), the two fixing grooves (13) are symmetrical with respect to the center of the spacing beam (14).

6. The loudspeaker according to claim 3, characterized in that The bowl portion (24) further comprises a bowl bottom (242), wherein the bowl bottom (242) is a flat plate structure, and the flat plate structure is a magnetic conductor; The side wall portion (241) comprises a first magnet (2411) and a first magnetic conductive plate (2412), wherein the first magnet (2411) is attracted between the flat plate structure and the first magnetic conductive plate (2412).

7. The loudspeaker according to claim 6, characterized in that The carrier frame (1) comprises a plurality of side beams (15), the plurality of side beams (15) being respectively arranged corresponding to the plurality of fixing grooves (13), and the fixing grooves (13) being formed on a side of the side beam (15) away from the diaphragm (21); The support frame (1) is an injection-molded part, and at least a portion of the first magnetic conductive plate (2412) is arranged on the inner side of the side beam (15).

8. The loudspeaker according to claim 7, characterized in that The fixing groove (13) has two second positioning surfaces (132), and the two second positioning surfaces (132) are perpendicular to the length direction of the fixing groove (13); The side of the first magnetic conductive plate (2412) away from the diaphragm (21) is exposed to the outside of the side beam (15) and is located between the two second positioning surfaces (132); The first magnet (2411) is clamped between the two second positioning surfaces (132) and is attracted to the first magnetic conductive plate (2412).

9. The loudspeaker according to claim 7, characterized in that The plurality of accommodating spaces (11) include a first accommodating space and a second accommodating space, and the accommodating window (111) is formed between two side beams (15); In the depth direction of the accommodating window (111), the side beams (15) corresponding to the first accommodating space and the second accommodating space are staggered, and a hollow area (16) is formed between two side beams (15) on opposite sides of the first accommodating space and the second accommodating space; The first magnet (2411) corresponding to the first accommodating space passes through the hollow area (16) and is simultaneously attracted to the first magnet (2411) corresponding to the second accommodating space and the first magnetic conductive plate (2412).

10. An electronic device, characterized in that: The electronic device comprises: A loudspeaker according to any one of claims 1 to 9.

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