Loudspeaker and terminal

Abstract

The embodiment of the utility model discloses a loudspeaker and a terminal, the loudspeaker comprises a vibration unit and a magnetic circuit unit, a magnetic steel layer of the magnetic circuit unit is sprayed on a magnetic core and / or a magnetic bowl, the magnetic bowl is connected to the magnetic core, and the magnetic steel layer is located between the magnetic bowl and the magnetic core. The technical scheme that magnetic steel is clamped between a magnetic bowl and a magnetic core in the prior art is replaced, the magnetic steel layer can be attached to the magnetic core and / or the magnetic bowl, on one hand, the thickness of the magnetic circuit unit can be effectively reduced, and then the overall thickness of the loudspeaker is reduced; on the other hand, the fixation of the magnetic steel layer is more reliable, and the magnetic steel layer cannot move relative to the magnetic core or the magnetic bowl, so that the tone quality is guaranteed; and on the other hand, the magnetic circuit unit is convenient to assemble, only the magnetic core and the magnetic bowl need to be in butt joint, the assembly can be more convenient, the assembly relation of the magnetic circuit unit can be tighter, and the thickness of the loudspeaker is further reduced.

Description

Technical Field

[0001] This application relates to the field of audio equipment technology, and more particularly to a speaker and a terminal. Background Technology

[0002] In current technology, electronic terminal products such as mobile phones, tablets and smart wearable devices are all developing towards thinner and lighter designs. However, the thickness of speakers in traditional technology is relatively large, and it is difficult to reduce the thickness of speakers, which restricts the thickness of electronic devices and is not conducive to the development of thinner and lighter electronic devices. Utility Model Content

[0003] The present invention introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This part of the present invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the first aspect of this utility model provides a loudspeaker.

[0006] The second aspect of this utility model provides a terminal.

[0007] In view of this, a loudspeaker is provided according to a first aspect of the embodiments of this application, comprising:

[0008] Vibration unit;

[0009] A magnetic circuit unit, wherein the vibration unit is disposed on one side of the magnetic circuit unit, and the magnetic circuit unit includes a magnetic core, a magnetic steel layer and a magnetic cup;

[0010] The magnetic steel layer is sprayed onto the magnetic core and / or the magnetic cup, the magnetic cup is connected to the magnetic core, and the magnetic steel layer is located between the magnetic cup and the magnetic core.

[0011] In one feasible implementation, the magnet layer is sprayed onto the magnetic core.

[0012] In one feasible implementation, an attachment layer is formed on the side of the magnetic core facing the magnetic cup, and the magnetic steel layer is attached to the attachment layer.

[0013] In one feasible implementation, the adhesion layer includes:

[0014] A rough layer formed on the surface of the magnetic core; and / or

[0015] Mesh-like ribs formed on the surface of the magnetic core.

[0016] In one feasible implementation, the loudspeaker further includes:

[0017] A limiting frame is provided, wherein a magnet attachment area is formed on the magnetic core, and the limiting frame is connected to the magnetic core and encloses the magnet attachment area.

[0018] In one feasible implementation, the magnetic bowl includes:

[0019] A back plate and multiple limiting plates, wherein the multiple limiting plates are connected to the edge of the back plate so that the magnetic bowl forms a receiving space;

[0020] The magnetic core and the magnetic steel layer are embedded in the receiving space.

[0021] In one feasible implementation, the vibration unit includes:

[0022] A basin stand, wherein the basin stand is frame-shaped and has a through assembly opening;

[0023] A voice coil, wherein the voice coil is disposed within the assembly port and is disposed on one side of the magnetic circuit unit;

[0024] A diaphragm is disposed within the frame and arranged on the side of the voice coil opposite to the magnetic circuit unit;

[0025] The magnetic circuit unit is connected to the basin frame and is disposed within the assembly port.

[0026] In one feasible implementation, a limiting groove is also formed on the basin stand, and a limiting protrusion is formed on the magnetic bowl, the limiting protrusion being disposed within the limiting groove.

[0027] In one feasible implementation, the vibration unit further includes:

[0028] A lid, which is connected to the basin stand;

[0029] A dome, which is disposed between the cover and the basin frame.

[0030] In one feasible implementation, the vibration unit further includes:

[0031] A power-on contact is provided on the frame and is used to power the voice coil.

[0032] In one possible implementation, the power-on contact is made of a metallic material, is elongated, and has a protrusion extending away from the basin stand.

[0033] A second aspect of the embodiments of this application provides a terminal, comprising:

[0034] The loudspeaker as described in any of the above technical solutions;

[0035] The housing, wherein the horn is disposed within the housing or on the housing.

[0036] In one feasible implementation, the terminal further includes:

[0037] A motherboard having an embedded opening, at least a portion of which is disposed within the front inlet, the speaker being connected to the motherboard.

[0038] Compared with the prior art, the present invention has at least the following beneficial effects:

[0039] The speaker provided in this application includes a vibration unit and a magnetic circuit unit. During operation, the magnetic circuit unit provides a constant magnetic field to provide a basic environment for the vibration unit. In the vibration unit, the voice coil is subjected to Lorentz force in the magnetic field of the magnet, generating mechanical vibration, thereby realizing the conversion of electrical signals into sound signals. Further, the magnetic circuit unit provided in this application has a magnet layer sprayed onto the magnetic core and / or the magnetic cup, with the magnetic cup connected to the magnetic core, and the magnet layer located between the magnetic cup and the magnetic core. This replaces the traditional technique of clamping the magnet between the magnetic cup and the magnetic core, allowing the magnet layer to adhere to the magnetic core and / or the magnetic cup. Firstly, this effectively reduces the thickness of the magnetic circuit unit, thereby reducing the overall thickness of the speaker. Secondly, it makes the fixation of the magnet layer more reliable, preventing movement relative to the magnetic core or magnetic cup, thus ensuring sound quality. Thirdly, it facilitates the assembly of the magnetic circuit unit; only the magnetic core and magnetic cup need to be aligned, making assembly more convenient and allowing for a tighter assembly relationship, further reducing the speaker's thickness.

[0040] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0041] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0042] Figure 1 A schematic structural diagram of the exploded state of a speaker according to an embodiment of this application;

[0043] Figure 2 A schematic structural diagram of a speaker at one angle according to an embodiment of this application;

[0044] Figure 3 A schematic structural diagram of a speaker from another angle according to one embodiment of this application.

[0045] Figure 4 A schematic structural diagram of the magnetic core of a loudspeaker according to one embodiment of this application at one angle;

[0046] Figure 5 A schematic structural diagram illustrating the fabrication process of the magnet layer of a loudspeaker according to an embodiment of this application;

[0047] Figure 6 This is a structural block diagram of a terminal according to an embodiment of this application.

[0048] in, Figures 1 to 6 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0049] 100 loudspeakers;

[0050] 110 vibration unit, 120 magnetic circuit unit;

[0051] 111 Basket, 112 Voice coil, 113 Diaphragm, 114 Cover, 115 Dome, 116 Power-on contact;

[0052] 121 Magnetic core, 122 Magnet layer, 123 Magnetic cup, 124 Rough layer, 125 Mesh ribs, 126 Limiting frame, 1231 Back plate, 1232 Limiting plate, 1233 Limiting protrusion;

[0053] 210 casing, 220 motherboard. Detailed Implementation

[0054] The following description provides numerous specific details to offer a more thorough understanding of the technical solutions provided by this invention. However, it will be apparent to those skilled in the art that the technical solutions provided by this invention can be implemented without one or more of these details.

[0055] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0056] Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0057] like Figures 1 to 5 As shown, a loudspeaker 100 is provided according to a first aspect of the present application, comprising: a vibration unit 110; and a magnetic circuit unit 120. The vibration unit 110 is disposed on one side of the magnetic circuit unit 120. The magnetic circuit unit 120 includes a magnetic core 121, a magnetic steel layer 122, and a magnetic cup 123. The magnetic steel layer 122 is sprayed on the magnetic core 121 and / or the magnetic cup 123, the magnetic cup 123 is connected to the magnetic core 121, and the magnetic steel layer 122 is located between the magnetic cup 123 and the magnetic core 121.

[0058] The speaker 100 provided in this embodiment includes a vibration unit 110 and a magnetic circuit unit 120. During operation, the magnetic circuit unit 120 provides a constant magnetic field to provide a basic environment for the vibration unit 110. In the vibration unit 110, the voice coil 112 is subjected to the Lorentz force in the magnetic field of the magnet, generating mechanical vibration, thereby realizing the conversion of electrical signals to sound signals. Further, the magnetic circuit unit 120 provided in this embodiment has a magnet layer 122 sprayed on the magnetic core 121 and / or the magnetic cup 123. The magnetic cup 123 is connected to the magnetic core 121, and the magnet layer 122 is located between the magnetic cup 123 and the magnetic core 121. This design replaces the traditional technique of clamping the magnet between the magnetic cup 123 and the magnetic core 121, allowing the magnet layer 122 to adhere to the magnetic core 121 and / or the magnetic cup 123. Firstly, this effectively reduces the thickness of the magnetic circuit unit 120, thereby reducing the overall thickness of the speaker 100. Secondly, it makes the fixation of the magnet layer 122 more reliable, preventing any movement relative to the magnetic core 121 or the magnetic cup 123, thus ensuring sound quality. Thirdly, it facilitates the assembly of the magnetic circuit unit 120; simply connecting the magnetic core 121 to the magnetic cup 123 makes assembly more convenient and allows for a tighter fit between the magnetic circuit unit 120 and the speaker 100, further reducing the thickness of the speaker 100.

[0059] It is understandable that the magnet layer 122 can be coated with magnetic powder onto the magnetic core 121 and / or magnetic cup 123 through a conventional thermal spraying process, thereby making the magnetic core 121 and / or magnetic cup 123 magnetic and reducing the thickness of the speaker 100.

[0060] It is understandable that the materials used to prepare the magnetic layer 122 may include ferrite powder, neodymium iron boron powder, and samarium cobalt powder, etc.

[0061] It is understandable that the magnetic core 121 can be made of magnetically conductive material, such as low-carbon steel or silicon steel sheet. The magnetic core 121 and the magnetic steel layer 122 form a closed magnetic field, which can enhance the concentration of the magnetic field. The pole core is used to guide the magnetic field generated by the magnetic steel to the area where the voice coil 112 of the vibration unit 110 is located, reduce magnetic leakage, and improve the utilization rate of the magnetic field.

[0062] Understandably, the magnetic cup 123, as the structural framework of the magnetic circuit system, can fix the position of the pole core, ensure the stability of the magnetic circuit, and guarantee the consistency of the sound.

[0063] like Figures 1 to 5 As shown, in one feasible embodiment, the magnet layer 122 is sprayed onto the magnetic core 121.

[0064] In this technical solution, considering that the magnetic bowl 123 needs to fix the magnetic core 121, the structure of the magnetic bowl 123 is more complex than that of the magnetic core 121. Based on this, the magnetic steel layer 122 is only sprayed on the magnetic core 121. On the one hand, this facilitates the setting of the magnetic steel layer 122; on the other hand, it makes the magnetic steel layer 122 flatter and enhances the concentration of the magnetic field.

[0065] like Figure 4 As shown, in one feasible embodiment, the magnetic core 121 has an attachment layer formed on the side facing the magnetic bowl 123, and the magnetic steel layer 122 is attached to the attachment layer.

[0066] In this technical solution, an adhesion layer is formed on the side of the magnetic core 121 facing the magnetic cup 123. The adhesion layer can improve the adhesion efficiency of the magnet layer 122, making it easier to spray the magnet layer 122 onto the magnetic core 121, and reducing the probability of the magnet layer 122 falling off, thereby ensuring the reliability of the speaker 100.

[0067] like Figure 4 As shown, in one feasible embodiment, the adhesion layer includes: a rough layer 124 formed on the surface of the magnetic core 121; and / or a grid-like rib 125 formed on the surface of the magnetic core 121.

[0068] In this technical solution, a specific pattern of the adhesion layer is further provided. The surface of the magnetic core 121 can be polished by sandblasting to form a rough layer 124 on the surface of the magnetic core 121. Then, the magnetic steel layer 122 is sprayed on the rough layer 124, which can improve the adhesion efficiency of the magnetic steel layer 122 and reduce the probability of the magnetic steel layer 122 falling off.

[0069] In this technical solution, a grid-like rib 125 can also be provided on the surface of the magnetic core 121. The grid-like rib 125 can also limit the position of the magnet layer 122, reducing the probability of the magnet layer 122 falling off. This reduces the thickness of the speaker 100 while ensuring its service life.

[0070] like Figure 4 As shown, in one feasible embodiment, the speaker 100 further includes: a limiting frame 126, on which a magnet attachment area is formed, the limiting frame 126 is connected to the magnet core 121 and encloses the magnet attachment area.

[0071] In this technical solution, a limiting frame 126 can also be formed on the magnetic core 121. The limiting frame 126 can limit the magnetic steel layer 122 formed by spraying, reduce the probability of the magnetic steel layer 122 becoming loose, and at the same time, accurately determine the setting area of ​​the magnetic steel layer 122, ensure the concentration of the magnetic field, and thus ensure the sound quality of the speaker 100.

[0072] like Figure 1 As shown, in one feasible embodiment, the magnetic bowl 123 includes: a back plate 1231 and a plurality of limiting plates 1232, the plurality of limiting plates 1232 being connected to the edge of the back plate 1231 so that the magnetic bowl 123 forms an accommodating space; the magnetic core 121 and the magnetic steel layer 122 are embedded in the accommodating space.

[0073] In this technical solution, the structural composition of the magnetic cup 123 is further provided. The magnetic cup 123 may include a back plate 1231 and multiple limiting plates 1232. The multiple limiting plates 1232 and the back plate 1231 enclose a receiving space, and the magnetic core 121 is embedded in the receiving space. The magnetic cup 123 can limit the magnetic core 121, thereby ensuring the stability of the magnetic circuit unit 120 structure.

[0074] like Figure 1 As shown, in one feasible embodiment, the vibration unit 110 includes: a frame 111, which is frame-shaped and has a through mounting opening; a voice coil 112, which is disposed in the mounting opening and on one side of the magnetic circuit unit 120; and a diaphragm 113, which is disposed in the frame 111 and arranged on the side of the voice coil 112 away from the magnetic circuit unit 120; wherein the magnetic circuit unit 120 is connected to the frame 111 and is disposed in the mounting opening.

[0075] In this technical solution, the structural composition of the vibration unit 110 is further provided. The vibration unit 110 may include a frame 111, a voice coil 112, and a diaphragm 113. The voice coil 112 is placed in the magnetic field formed by the magnetic circuit unit 120. When an electric current passes through it, the voice coil 112 vibrates under the action of magnetic force, driving the diaphragm 113 to move. The diaphragm 113 pushes the air to generate sound waves, thereby converting the electrical signal into sound. The frame 111 serves to fix and support the voice coil 112 and the diaphragm 113, making the mechanical strength of the speaker 100 higher.

[0076] In this technical solution, the frame 111 can not only fix the diaphragm 113 and the voice coil 112, but also fix the magnetic circuit unit 120, making the structure of the speaker 100 more compact.

[0077] like Figure 1 As shown, in one feasible embodiment, a limiting groove is also formed on the basin holder 111, and a limiting protrusion 1233 is formed on the magnetic bowl 123. The limiting protrusion 1233 is used to be disposed in the limiting groove.

[0078] In this technical solution, a structure adapted to the magnetic cup 123 is formed on the frame 111. A limiting groove can be formed on the frame 111, and a limiting protrusion 1233 is formed on the magnetic cup 123. When the vibration unit 110 and the magnetic circuit unit 120 are assembled, the assembly of the magnetic circuit unit 120 and the frame 111 can be more precise, further reducing the probability of mutual movement between the vibration unit 110 and the magnetic circuit unit 120, and ensuring the sound quality of the speaker 100.

[0079] like Figure 1 As shown, in one feasible embodiment, the vibration unit 110 further includes: a cover 114 connected to the basin frame 111; and a dome 115 disposed between the cover 114 and the basin frame 111.

[0080] In this technical solution, the vibration unit 110 may also include a cover 114 and a dome 115. The cover 114 can protect the diaphragm 113 and guide the propagation of sound. The dome 115 can make the diaphragm 113 vibrate more evenly, disperse high-frequency sound, and improve sound quality.

[0081] like Figure 1 As shown, in one feasible embodiment, the vibration unit 110 further includes a power-on contact 116, which is disposed on the frame 111 and is used to power on the voice coil 112.

[0082] In this technical solution, the vibration unit 110 may also include an electric contact, which can energize the voice coil 112. When energized, the voice coil 112 vibrates under the action of magnetic force, driving the diaphragm 113 to move. The diaphragm 113 pushes the air to generate sound waves, thereby converting the electrical signal into sound.

[0083] In one possible implementation, the power-on contact 116 is made of a metallic material, is elongated, and has a protrusion formed on it in a direction away from the basin holder 111.

[0084] In this technical solution, the design of the power-on contact 116 is further provided. The power-on contact 116 is made of metal material and is elongated. A protrusion is formed on the power-on contact 116 in a direction away from the frame 111. Based on this, the power-on contact 116 has a certain elasticity. Combined with the protrusion formed on the power-on contact 116 away from the frame 111, it is convenient for the power-on contact 116 to contact the power supply unit, which can ensure power-on efficiency and thus ensure sound quality.

[0085] like Figure 6 As shown, a terminal is provided according to a second aspect of the embodiments of this application, including: a speaker 100 as described in any of the above technical solutions; and a housing 210, wherein the speaker 100 is disposed inside the housing 210 or disposed on the housing 210.

[0086] The terminal provided in this application embodiment includes a speaker 100 as described in any of the above technical solutions, and therefore the terminal possesses all the beneficial effects of the speaker 100 of the above technical solutions, which will not be elaborated here.

[0087] Understandably, the housing 210 provides a mounting location for the speaker 100.

[0088] In one feasible implementation, the terminal further includes a motherboard 220, on which an embedding opening is formed, and at least a portion of the speaker 100 is disposed in the front opening, the speaker 100 being connected to the motherboard 220.

[0089] In this technical solution, the terminal may also include a motherboard 220, which can be set inside the housing 210. The speaker 100 is connected to the motherboard 220. The motherboard 220 is used to control the speaker 100 to play audio. A front entrance is formed on the motherboard 220. A part of the speaker 100 can be embedded in the entrance. Based on this, the overall thickness of the speaker 100 and the motherboard 220 can be reduced, which helps to reduce the overall thickness of the terminal.

[0090] In some examples, the terminal includes, but is not limited to, mobile phones, tablets, learning machines, VR devices, smart wearable devices, computers, etc.

[0091] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0092] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0093] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0094] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A horn, characterized by include: Vibration unit; A magnetic circuit unit, wherein the vibration unit is disposed on one side of the magnetic circuit unit, and the magnetic circuit unit includes a magnetic core, a magnetic steel layer and a magnetic cup; The magnetic steel layer is sprayed onto the magnetic core and / or the magnetic cup, the magnetic cup is connected to the magnetic core, and the magnetic steel layer is located between the magnetic cup and the magnetic core.

2. The loudspeaker according to claim 1, characterized in that, The magnet layer is sprayed onto the magnetic core.

3. The loudspeaker according to claim 1, characterized in that, An adhesion layer is formed on the side of the magnetic core facing the magnetic bowl, and the magnetic steel layer is attached to the adhesion layer.

4. The horn of claim 3, wherein The adhesion layer includes: A rough layer formed on the surface of the magnetic core; and / or Mesh-like ribs formed on the surface of the magnetic core.

5. The horn of claim 1, wherein Also includes: A limiting frame is provided, wherein a magnet attachment area is formed on the magnetic core, and the limiting frame is connected to the magnetic core and encloses the magnet attachment area.

6. The horn according to any one of claims 1 to 5, wherein The magnetic bowl includes: A back plate and multiple limiting plates, wherein the multiple limiting plates are connected to the edge of the back plate so that the magnetic bowl forms a receiving space; The magnetic core and the magnetic steel layer are embedded in the receiving space.

7. The horn according to any one of claims 1 to 5, wherein The vibration unit includes: A basin stand, wherein the basin stand is frame-shaped and has a through assembly opening; A voice coil, wherein the voice coil is disposed within the assembly port and is disposed on one side of the magnetic circuit unit; A diaphragm is disposed within the frame and arranged on the side of the voice coil opposite to the magnetic circuit unit; The magnetic circuit unit is connected to the basin frame and is disposed within the assembly port.

8. The loudspeaker according to claim 7, characterized in that, The basin rack is also formed with a limiting groove, and the magnetic bowl is formed with a limiting protrusion. The limiting protrusion is used to be disposed in the limiting groove. The vibration unit further includes: A lid, which is connected to the basin stand; A dome, which is disposed between the cover and the basin frame.

9. The horn of claim 7, wherein, The vibration unit also includes: Power-on contacts, which are disposed on the frame, are used to power on the voice coil; The power-on contact is made of metal and is elongated, with a protrusion extending away from the basin stand.

10. A terminal, characterized by comprising: include: The horn as described in any one of claims 1 to 9; The housing, wherein the horn is disposed within the housing or on the housing.

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