Loudspeaker and electronic equipment

Abstract

The embodiment of the utility model provides a loudspeaker and electronic equipment. The loudspeaker comprises a shell, a sound cone and a buzzing piece arranged at the bottom of the sound cone. The shell comprises a containing cavity with an opening in one end, the sound basin is arranged in the containing cavity, and the sound basin is of an integrated structure; the sound basin comprises a bending part which is arranged from an opening of the sound basin to a direction far away from the sound basin, the bending part is provided with a first groove which is arranged in a direction far away from the bottom of the sound basin, and the shell is positioned in the first groove; the sound basin and the shell form a first sound cavity, the buzzing piece is located in the first sound cavity, and the buzzing piece is used for receiving a sound current signal and making a sound. The sound cone is arranged to be of an integrated structure, so that the number of parts of the loudspeaker is reduced, and the assembly efficiency of the loudspeaker can be improved.

Description

Technical Field

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

[0002] A loudspeaker is a transducer that converts electrical signals into sound signals and is commonly used in electronic and electrical devices that produce sound.

[0003] Currently, motorized paper cone loudspeakers are commonly used, secured with screws. These loudspeakers mainly consist of a diaphragm, suspension, frame, cone, voice coil, yoke ring, dust cover, magnet, centering support, and frame. The large number of components makes assembling these loudspeakers complex. Utility Model Content

[0004] This application provides a loudspeaker and electronic device that can solve the problem of difficult assembly of motorized paper cone loudspeakers due to the large number of components.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application provide a loudspeaker including a housing, a cone, and a buzzer disposed at the bottom of the cone; the housing includes a receiving cavity with an opening at one end, the cone is disposed within the receiving cavity, and the cone is an integral structure; the cone includes a bent portion disposed from the cone opening away from the cone, the bent portion having a first groove disposed in a direction away from the bottom of the cone, and the housing is located within the first groove; the cone and the housing form a first acoustic cavity, the buzzer is located within the first acoustic cavity, and the buzzer is used to receive an acoustic current signal and emit sound.

[0007] Optionally, the speaker further includes a terminal block, a connection platform is provided on the housing facing towards the cone, a through hole is provided on the connection platform, the terminal block is disposed on the connection platform, and the terminal block passes through the through hole to connect to the buzzer.

[0008] Optionally, the cone includes a first region recessed from the bottom of the cone toward the cone opening, the recess depth of the first region being less than the cone body depth, and the buzzer covering the first region and forming a second acoustic cavity with the first region.

[0009] Optionally, the bottom of the cone body further includes a second groove recessed from the bottom of the cone toward the cone opening, the second groove being disposed around the outside of the first region;

[0010] The bottom of the cone is provided with a second area, and the second area is provided with an adhesive. The buzzer is fixed to the bottom of the cone by the adhesive.

[0011] The second region is the area between the first region and the second groove.

[0012] Optionally, the bottom of the cone body further includes a third groove recessed from the bottom of the cone toward the cone opening, and the third groove is disposed around the outside of the second groove.

[0013] Optionally, the center lines of the second groove, the third groove, and the buzzer plate all coincide.

[0014] Optionally, the loudspeaker further includes a cover plate, the middle area of ​​which is provided with a sound-transmitting hole, and the side of the cover plate facing the opening of the receiving cavity is provided with a snap-fit ​​structure around the sound-transmitting hole. The cover plate is connected to the housing through the snap-fit ​​structure, and the cover plate and the housing form a third acoustic cavity.

[0015] The vertical projection area of ​​the housing onto the cover plate is located within the cover plate.

[0016] Optionally, the housing further includes a mounting plate disposed from the housing toward a direction away from the housing, the mounting plate being close to the opening of the receiving cavity;

[0017] The mounting plate is provided with mounting holes, and the snap-fit ​​structure passes through the mounting holes and connects to the housing.

[0018] Secondly, embodiments of this application provide an electronic device including a speaker as described in the first aspect.

[0019] In this embodiment, the loudspeaker includes a housing, a cone, and a buzzer disposed at the bottom of the cone. The housing includes a receiving cavity with an opening at one end, and the cone is disposed within the receiving cavity, the cone being a one-piece structure. The cone includes a bent portion extending away from the cone opening, the bent portion having a first groove extending away from the bottom of the cone, and the housing is located within the first groove. The cone and the housing form a first acoustic cavity, and the buzzer is located within the first acoustic cavity, the buzzer being used to receive sound current signals and emit sound. Thus, by making the cone a one-piece structure, the number of loudspeaker components is reduced, improving the assembly efficiency of the loudspeaker. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a loudspeaker provided in an embodiment of this application;

[0021] Figure 2This is a schematic diagram of the structure of the cone provided in an embodiment of this application. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "connected" or "linked," and similar terms, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right," etc., are used only to indicate relative positional relationships, which change accordingly when the absolute position of the described object changes.

[0024] The speaker and electronic device proposed in the embodiments of the application will be further described below with reference to the accompanying drawings.

[0025] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a loudspeaker provided in an embodiment of this application. Figure 2 This is a schematic diagram of the cone structure provided in an embodiment of this application. As shown, the loudspeaker includes a housing 10, a cone 20, and a buzzer 30 disposed at the bottom of the cone 20;

[0026] The housing 10 includes a receiving cavity with an opening at one end, and the diaphragm 20 is disposed in the receiving cavity. The diaphragm 20 is an integral structure.

[0027] The cone 20 includes a bent portion 21 disposed from the opening of the cone 20 away from the cone 20, the bent portion 21 having a first groove disposed in a direction away from the bottom of the cone 20, and the housing 10 being located in the first groove;

[0028] The diaphragm 20 and the housing 10 form a first acoustic cavity, and the buzzer 30 is located in the first acoustic cavity. The buzzer 30 is used to receive sound current signals and emit sound.

[0029] It should be understood that a loudspeaker is an electroacoustic transducer used in electronic devices that can produce sound. Typically, loudspeakers are mounted at the bottom or top of the electronic device, providing sufficient mounting space for other components.

[0030] The speaker cone 20, as a crucial component of the loudspeaker, is typically made of paper, with a voice coil mounted on top. When an audio signal is received, the voice coil vibrates strongly in a magnetic field, causing the paper cone to vibrate. This vibration forces the air to vibrate, thus producing sound. However, in this embodiment, the speaker cone 20 is a one-piece structure. The cone-shaped structure amplifies the sound emitted by the buzzer 30 at its bottom, which corresponds to the received audio current signal, thereby forming a sound amplification structure. The one-piece structure of the speaker cone 20 is simple, reducing the risk of inconsistent sound due to errors and simplifying assembly, thus improving assembly efficiency.

[0031] It should be understood that the buzzer 30 may be a piezoelectric ceramic buzzer 30, the sound source of which comes from a piezoelectric vibrating plate. The piezoelectric vibrating plate is composed of a piezoelectric ceramic plate with electrodes printed on both sides and a metal plate bonded together with an adhesive. In this way, when the two vibrating plates are energized, electrical energy is converted into mechanical energy and sound is emitted.

[0032] The diaphragm 20 and the buzzer 30 are disposed within the receiving cavity of the housing 10. The bottom of the diaphragm 20 faces inward toward the receiving cavity. A bent portion 21 is provided at the opening of the diaphragm 20, extending away from the opening. A first groove is provided on the bent portion 21, with its opening facing toward the housing 10. The housing 10 is located within the first groove, thus securing the housing 10 and fixing the relative positions of the diaphragm 20 and the housing 10. Furthermore, the housing 10, located outside the diaphragm 20 and the buzzer 30, also provides protection for the bottom of the diaphragm 20 and the buzzer 30.

[0033] In this embodiment, the loudspeaker includes a housing 10, a cone 20, and a buzzer 30 disposed at the bottom of the cone 20. The housing 10 includes a receiving cavity with an opening at one end, and the cone 20 is disposed within the receiving cavity, the cone 20 being a one-piece structure. The cone 20 includes a bent portion 21 extending away from the opening of the cone 20, the bent portion 21 having a first groove extending away from the bottom of the cone 20, the housing 10 being located within the first groove. The cone 20 and the housing 10 form a first acoustic cavity, the buzzer 30 being located within the first acoustic cavity, the buzzer 30 being used to receive sound current signals and emit sound. Thus, by making the cone 20 a one-piece structure, the number of loudspeaker components can be reduced, thereby improving assembly efficiency.

[0034] Optionally, the loudspeaker further includes a terminal block 40. A connection platform is provided on the outer side of the housing 10 in the direction close to the cone 20. A through hole is provided on the connection platform. The terminal block 40 is disposed on the connection platform and passes through the through hole to connect to the buzzer 30.

[0035] In this embodiment, by providing a wiring terminal 40, the first end of the wiring terminal 40 can be connected to a controller equipped with electronic equipment via a wire, and the second end can be connected to a buzzer 30 via a wire. Compared to directly connecting to the buzzer 30, this improves connection reliability. After receiving the sound current signal transmitted by the wiring terminal 40, the buzzer 30 can emit a corresponding sound, which is then amplified by the speaker cone 20.

[0036] It should be understood that a connecting platform is provided on the housing 10. This connecting platform can be a recessed area outside the housing 10, close to the cone 20 inside the housing 10's accommodating cavity. This recessed area is equipped with a fixing member so that the terminal block 40 can be fixed to the housing 10 via the fixing member. The recessed area can be configured to fit the terminal block 40. Furthermore, the size of the terminal block 40 should also match the size and height of the connecting platform on the housing 10, ensuring a proper fit between the terminal block 40 and the connecting platform. This achieves the speaker's amplification effect without occupying space for other components inside the electronic device.

[0037] Optionally, the diaphragm 20 includes a first region 22 recessed from the bottom of the diaphragm 20 toward the opening of the diaphragm 20, the recess depth of the first region 22 being less than the depth of the diaphragm body of the diaphragm 20, and the buzzer 30 covering the first region 22 and forming a second acoustic cavity with the first region 22.

[0038] In this embodiment, the area of ​​the buzzer 30 is larger than that of the first region 22, and the second acoustic cavity formed by the buzzer 30 and the first region 22 is a sound cavity. The buzzer 30 and the sound cavity have a resonant frequency, and the second acoustic cavity can amplify the sound emitted by the buzzer 30.

[0039] It should be understood that the first region 22 is located in the center of the bottom of the diaphragm 20, and the center of the buzzer 30 coincides with the center of the first region 22. In this way, when the buzzer 30 receives the sound current signal transmitted by the terminal 40, the buzzer 30 emits a corresponding sound, which is then amplified more evenly through the second acoustic cavity, thereby improving the sound quality.

[0040] In addition, by setting the recess depth of the first region 22 to be less than the cone depth of the cone 20, the buzzer 30 set in the first region 22 can form a sound cavity with the bottom of the cone 20, and the cone 20 itself can form another sound cavity. In this way, after amplification by multiple sound cavities, the amplification of the loudspeaker can be achieved.

[0041] Optionally, the bottom of the cone body further includes a second groove 23 recessed from the bottom of the cone 20 toward the opening of the cone 20, and the second groove 23 is disposed around the outside of the first region 22;

[0042] The bottom of the cone 20 is provided with a second area, and the second area is provided with an adhesive. The buzzer 30 is fixed to the bottom of the cone 20 by the adhesive.

[0043] The second region is the area between the first region 22 and the second groove 23.

[0044] In this embodiment, the recessed direction of the second groove 23 is the same as that of the first region 22. Thus, an adhesive is applied in the area between the first region 22 and the second groove 23, and the buzzer 30 is fixed to the bottom of the cone 20 by the adhesive, forming a second acoustic cavity with the first region 22. This second acoustic cavity amplifies the sound emitted by the buzzer 30. In an optional embodiment, the adhesive can be applied to the second region by smearing.

[0045] The second groove 23 is arranged around the outer edge of the first region 22 to form an annular groove. In this way, when there is sufficient adhesive in the area between the first region 22 and the second groove 23, the second groove 23 can accommodate excess adhesive, thereby ensuring sufficient adhesive and preventing excessive adhesive from flowing onto the buzzer plate and affecting sound production.

[0046] In an optional embodiment, the center of the annular groove coincides with the center of the first region 22. Thus, the buzzer 30 can be fixed to the bottom of the cone 20 by an adhesive disposed in the region between the first region 22 and the annular groove, thereby improving the reliability of the speaker. In an optional embodiment, the annular groove is a circular groove, the buzzer 30 is also circular, and the outer contour edge of the buzzer 30 is located outside the outer groove edge of the circular groove.

[0047] It should be noted that this embodiment does not limit the shape of the annular groove or the shape of the buzzer 30. Only the size of the buzzer 30 is specified, and the edge of its outer contour should be located outside the outer groove edge.

[0048] Optionally, the bottom of the cone body further includes a third groove 24 recessed from the bottom of the cone 20 toward the opening of the cone 20, and the third groove 24 is disposed around the second groove 23.

[0049] The recessed direction of the third groove 24 is consistent with the recessed direction of the first region 22 and the recessed direction of the second groove 23. Furthermore, the center line of the third groove 24 coincides with the center line of the second groove 23. The recessed depths of the second groove 23 and the third groove 24 may be the same or different, which is not limited in this embodiment.

[0050] The third groove serves to increase the amplitude of the vibration of the buzzer and the spherical cavity during sound generation, thus increasing the thickness of the sound and preventing a sharp, piercing sound.

[0051] In this embodiment, the third groove 24 is arranged around the second groove 23 to form an annular groove. This increases the amplitude of the vibration of the buzzer 30 and the spherical cavity, increases the thickness of the sound, avoids sharp and piercing sounds, and thus improves the sound quality.

[0052] It should be noted that the shape of the annular groove is not limited in this embodiment. However, the edge of the outer contour of the buzzer 30 should be located within the inner groove edge of the third groove 24.

[0053] Optionally, the center lines of the second groove 23, the third groove 24, and the buzzer 30 all coincide.

[0054] In this embodiment, by setting the center lines of the second groove 23, the third groove 24, and the buzzer 30 to coincide, the center of the buzzer 30 and the center of the cone 20 are on the same center line, which can improve the sound quality emitted by the speaker.

[0055] Optionally, the loudspeaker further includes a cover plate 50, the middle area of ​​which is provided with a sound-transmitting hole, and the side of the cover plate 50 facing the opening of the accommodating cavity is provided with a snap-fit ​​structure around the sound-transmitting hole. The cover plate 50 is connected to the housing 10 through the snap-fit ​​structure, and the cover plate 50 and the housing 10 form a third acoustic cavity.

[0056] The vertical projection area of ​​the housing 10 on the cover plate 50 is located within the cover plate 50.

[0057] In this embodiment, a cover plate 50 is provided, which has a snap-fit ​​structure. The cover plate 50 is connected to the housing 10 through the snap-fit ​​structure to form a third acoustic cavity, so as to protect the diaphragm 20 and the buzzer 30.

[0058] A sound-permeable hole is provided in the middle area of ​​the cover plate 50, and the opening of the diaphragm 20 faces the area where the sound-permeable hole is located on the cover plate 50. In this way, when the buzzer 30 receives the sound current signal transmitted from the terminal 40 and emits sound, the sound is amplified by the diaphragm 20 and can be transmitted out through the sound-permeable hole of the cover plate 50. The size and number of the sound-permeable holes are not limited in this embodiment.

[0059] In this embodiment, a snap-fit ​​structure is provided around the area where the sound-permeable hole is located. The cover plate 50 can be connected to the housing 10 through the snap-fit ​​structure to form a third acoustic cavity. The diaphragm 20 and the buzzer 30 are both located in the third acoustic cavity. In the event of a failure of the diaphragm 20, the buzzer 30, or the terminal block 40, the cover plate 50 can be removed from the housing 10 by opening the snap-fit ​​structure. This improves the reliability of the speaker.

[0060] In an optional embodiment, the cover plate 50 may be an arc-shaped plate structure, with the maximum arc position of the cover plate 50 coinciding with the center line of the diaphragm 20, thereby increasing the volume of the acoustic cavity formed between the diaphragm 20 and the cover plate 50.

[0061] In addition, the cover plate 50 also has a decorative function. The color, shape, etc. of the cover plate 50 are usually adapted to the shape, size, color, etc. of the electronic device's casing. This embodiment does not limit this aspect.

[0062] In this embodiment, the vertical projection area of ​​the housing 10 on the cover plate 50 is located inside the cover plate 50, that is, the area of ​​the cover plate 50 is larger than the opening area of ​​the accommodating cavity of the housing 10. In this way, when the speaker is installed in an electronic device, the risk of damage to the cone 20 and buzzer 30 located at the amplification port inside the electronic device due to the external environment can be reduced, thereby improving the service life of the speaker.

[0063] The buckle structure can be evenly spaced around the sound-permeable hole, or it can be continuously arranged around the sound-permeable hole; this embodiment does not limit this.

[0064] Optionally, the housing 10 further includes a mounting plate 11 disposed from the housing 10 toward a direction away from the housing 10, the mounting plate 11 being close to the opening of the receiving cavity;

[0065] The mounting plate 11 is provided with mounting holes, and the snap-fit ​​structure passes through the mounting holes and connects to the housing 10.

[0066] In this embodiment, by providing a mounting plate 11 on the housing 10, the cover plate 50 is connected to the housing 10 via a snap-fit ​​structure passing through mounting holes on the mounting plate 11. This snap-fit ​​connection improves the stability of the connection between the cover plate 50 and the housing 10.

[0067] It should be understood that the mounting plate 11 and the aforementioned bent portion 21 are two plates arranged parallel to each other, and the mounting plate 11 surrounds the housing 10, being positioned near the opening of the receiving cavity. The distance between the mounting plate 11 and the opening of the receiving cavity is consistent with the depth of the first groove. Thus, when the housing 10 is located within the first groove of the bent portion 21, the bent portion 21 and the mounting plate 11 are in close contact. The mounting plate 11 is provided with a plurality of spaced mounting holes, which are evenly distributed along the opening of the receiving cavity. A plurality of snap-fit ​​structures provided on the cover plate 50 correspond one-to-one with the mounting holes, and the snap-fit ​​structures abut against the housing 10.

[0068] Optionally, the cone 20 is made of PVC material.

[0069] Because PVC material has advantages such as high plasticity and stability, in this embodiment, by making the cone 20 of PVC, the waterproof and moisture-proof effect of the cone 20 during use can be improved. In addition, the cone 20 made of PVC material also has excellent damping characteristics, resulting in better sound quality. In an optional embodiment, the cone 20 can be produced by molding in one piece, resulting in greater consistency.

[0070] This application provides an electronic device including a speaker as described above. Since the technical solution of this embodiment includes all the technical solutions of the above embodiments, it can at least achieve all the technical effects of the above embodiments, and will not be described in detail here.

[0071] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A loudspeaker, characterized by The speaker comprises a shell, a cone and a buzzer sheet arranged at the bottom of the cone. The shell comprises a receiving cavity with an opening at one end, and the cone is arranged in the receiving cavity and has an integrated structure. The cone comprises a bending part arranged away from the cone from the opening of the cone, and the bending part has a first groove arranged away from the bottom of the cone, and the shell is located in the first groove. The cone and the shell form a first acoustic cavity, and the buzzer sheet is located in the first acoustic cavity and used for receiving a sound current signal and emitting sound.

2. The loudspeaker of claim 1, wherein, The speaker further comprises a terminal, and the shell is provided with a connecting platform arranged towards the cone, and the connecting platform is provided with a through hole, and the terminal is arranged on the connecting platform and connected with the buzzer sheet through the through hole.

3. The loudspeaker of claim 1, wherein, The cone comprises a first area recessed from the bottom of the cone towards the opening of the cone, and the recessed depth of the first area is smaller than the depth of the cone body, and the buzzer sheet covers the first area and forms a second acoustic cavity with the first area.

4. The loudspeaker of claim 3, wherein, The bottom of the cone body further comprises a second groove recessed from the bottom of the cone towards the opening of the cone, and the second groove is arranged outside the first area. The bottom of the cone is provided with a second area, and the second area is provided with an adhesive, and the buzzer sheet is fixed to the bottom of the cone through the adhesive. The second area is the area between the first area and the second groove.

5. The loudspeaker of claim 4, wherein, The bottom of the cone body further comprises a third groove recessed from the bottom of the cone towards the opening of the cone, and the third groove is arranged outside the second groove.

6. The loudspeaker of claim 5, wherein, The center lines of the second groove, the third groove and the buzzer sheet are coincident.

7. The loudspeaker of claim 1, wherein, The speaker further comprises a cover plate, and the middle area of the cover plate is provided with a sound transmission hole, and the side of the cover plate towards the opening of the receiving cavity is provided with a buckle structure around the sound transmission hole, and the cover plate is connected with the shell through the buckle structure, and the cover plate and the shell form a third acoustic cavity. The vertical projection area of the shell on the cover plate is located in the cover plate.

8. The loudspeaker of claim 7, wherein, The shell further comprises a mounting plate arranged away from the shell, and the mounting plate is close to the opening of the receiving cavity. The mounting plate is provided with a mounting hole, and the buckle structure is connected with the shell through the mounting hole.

9. The loudspeaker of claim 1, wherein, The cone is made of PVC material.

10. An electronic device, comprising: The speaker comprises the speaker according to any one of claims 1-9.

Images