CN111757238A - Processing method of shell, shell structure and loudspeaker unit - Google Patents
Processing method of shell, shell structure and loudspeaker unit Download PDFInfo
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- CN111757238A CN111757238A CN202010897937.9A CN202010897937A CN111757238A CN 111757238 A CN111757238 A CN 111757238A CN 202010897937 A CN202010897937 A CN 202010897937A CN 111757238 A CN111757238 A CN 111757238A
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- magnetic
- shaped body
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a processing method of a shell, a shell structure and a loudspeaker unit, wherein the processing method of the shell comprises the following steps: providing a strip-shaped plate made of a magnetic conductive metal material; cutting the strip-shaped plate by adopting a punching process to obtain a strip-shaped body part and a plurality of magnetic conduction plates formed on the strip-shaped body part, wherein a gap is formed between every two adjacent magnetic conduction plates; bending the strip-shaped body part into a closed-loop structure by adopting a bending process so as to enable two ends of the strip-shaped body part to be matched to form an interface, wherein the closed-loop structure is provided with a containing cavity; bending the magnetic conduction plates towards the inside of the accommodating cavity by adopting a side-pushing process; and connecting and sealing the interfaces by adopting a welding process or a riveting process to obtain the shell structure. The invention aims to provide a processing method of a shell without stretching treatment, which greatly simplifies the manufacturing process, is easy for mass production of shell structures and improves the processing precision.
Description
Technical Field
The invention relates to the technical field of acoustoelectric products, in particular to a processing method of a shell, a shell structure prepared by applying the processing method and a loudspeaker unit applying the shell structure.
Background
A speaker is an important acoustic component of a portable electronic device, is used for converting an electric signal and a sound signal, and is an energy conversion device. With the miniaturization of electronic devices such as mobile phones, the size design of the speaker is more and more challenging. In the related art, the loudspeaker usually adopts an injection molding shell, and because of the limitation of material characteristics, the loudspeaker product adopting the plastic shell has poor heat dissipation effect. In the process of processing the metal shell, the material is usually stretched, so that the structural aspect of the metal shell is limited, and the design of the metal shell structure is influenced.
Disclosure of Invention
The invention mainly aims to provide a shell processing method, a shell structure and a loudspeaker unit, and aims to provide a shell processing method without stretching treatment.
In order to achieve the above object, the present invention provides a method for processing a housing, wherein the housing is a housing of a speaker unit, and the method for processing the housing includes the following steps:
providing a strip-shaped plate made of a magnetic conductive metal material;
cutting the strip-shaped plate by adopting a punching process to obtain a strip-shaped body part and a plurality of magnetic conduction plates formed on the strip-shaped body part, wherein a gap is formed between every two adjacent magnetic conduction plates;
bending the strip-shaped body part into a closed-loop structure by adopting a bending process so as to enable two ends of the strip-shaped body part to be matched to form an interface, wherein the closed-loop structure is provided with a containing cavity;
bending the magnetic conduction plates towards the inside of the accommodating cavity by adopting a side-pushing process;
and connecting and sealing the interfaces by adopting a welding process or a riveting process to obtain the shell structure.
In an embodiment, the strip-shaped plate has a side edge located at one side and a strip-shaped body located at the other side in the length direction, and the step of cutting the strip-shaped plate by using the die-cutting process includes:
and cutting the side edge, forming a plurality of U-shaped notches arranged at intervals on the side edge, and forming a magnetic conduction plate connected to the strip-shaped body part between every two adjacent notches.
In an embodiment, the number of the magnetic conductive plates is four, and the step of bending the strip-shaped body into the closed-loop structure by using the bending process includes:
the strip-shaped body part between every two adjacent magnetic conduction plates is bent one by one for three times, and is bent for 90 degrees every time, so that the strip-shaped body part forms a rectangular closed loop structure with a containing cavity, each magnetic conduction plate is positioned in the middle of each strip-shaped body part of the rectangular closed loop structure, the two magnetic conduction plates on the two opposite strip-shaped body parts are arranged in a right-facing mode, and the two ends of the strip-shaped body part are arranged in a right-facing mode to form the interface.
In an embodiment, the step of bending the plurality of magnetic conductive plates toward the inside of the cavity by using a side-pushing process includes:
and bending each magnetic conduction plate by 90 degrees towards the inside of the accommodating cavity so that the magnetic conduction plates are perpendicular to the strip-shaped body part.
In one embodiment, the method for processing the housing further comprises:
performing edge pressing treatment on the magnetic conduction plate and/or the strip-shaped body part to enable the surface of the magnetic conduction plate and/or the strip-shaped body part to form a groove;
punching the magnetic conduction plate and/or the strip-shaped body part;
and electroplating the shell structure by adopting an electroplating process.
The invention also provides a shell structure for the loudspeaker unit, and the shell structure is manufactured by the shell processing method.
In one embodiment, the housing structure comprises:
the shell main body is formed by the strip-shaped body part, is of a rectangular annular structure and is provided with a containing cavity; and
the magnetic conduction plates are arranged in the cavity at intervals, and each magnetic conduction plate is connected with the inner wall of the cavity.
In an embodiment, a groove is formed in one side of each magnetic conductive plate facing the housing main body, and the groove extends along the length direction of the magnetic conductive plate.
The invention also provides a speaker unit, which comprises:
the housing structure described above;
the magnetic circuit system comprises a magnetic yoke, a central magnetic circuit part and a plurality of side magnetic conductive irons, wherein the central magnetic circuit part and the side magnetic conductive irons are arranged on the magnetic yoke; and
and the vibration system comprises a voice coil suspended in the magnetic gap.
In one embodiment, the vibration system further includes a diaphragm and a reinforcing portion, the diaphragm is connected to the housing main body of the housing structure; the reinforcing part is positioned in the center of the vibrating diaphragm, and one side of the reinforcing part close to the magnetic gap is connected with the voice coil;
and/or, the central magnetic circuit part comprises a central magnet and a central magnetic conduction plate, and the central magnet is clamped between the magnetic conduction yoke and the central magnetic conduction plate.
According to the processing method of the shell, the strip-shaped plate made of the magnetic conductive metal material is directly punched and blanked to form the strip-shaped body part and the magnetic conductive plates, the strip-shaped body part and the magnetic conductive plates are bent for multiple times to form the closed-loop structure, the closed-loop structure is connected and sealed to form the shell structure by adopting a welding process or a riveting process, and the processing method does not need to stretch and form the strip-shaped plate, so that the processing process of shell processing is greatly simplified, and mass production is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a housing structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram illustrating a process for manufacturing a housing structure according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another perspective of the housing structure according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view at A in FIG. 3;
FIG. 5 is a schematic structural diagram of a speaker unit according to an embodiment of the present invention;
fig. 6 is an exploded view of a speaker unit according to an embodiment of the invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Shell structure | 2 | Magnetic circuit system |
| 11 | Shell |
21 | Magnetic |
| 111 | Containing chamber | 22 | Central |
| 12 | Magnetic conductive plate | 221 | |
| 121 | Groove | 222 | Central |
| 13 | Strip- |
23 | Edge |
| 131 | |
3 | |
| 132 | Strip-shaped body part | 31 | |
| 133 | Gap | 32 | |
| 14 | |
33 | Reinforcing |
| 141 | |
100 | Loudspeaker monomer |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Also, the meaning of "and/or" and/or "appearing throughout is meant to encompass three scenarios, exemplified by" A and/or B "including scenario A, or scenario B, or scenarios where both A and B are satisfied.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
A speaker is an important acoustic component of a portable electronic device, is used for converting an electric signal and a sound signal, and is an energy conversion device. With the miniaturization of electronic devices such as mobile phones, the size design of the speaker is more and more challenging. In the related art, the loudspeaker usually adopts an injection molding shell, and because of the limitation of material characteristics, the loudspeaker product adopting the plastic shell has poor heat dissipation effect. In the process of processing the metal shell, the material is usually stretched, so that the structural aspect of the metal shell is limited, and the design of the metal shell structure is influenced. Meanwhile, the shell and the side magnetic conductive plate of the magnetic circuit system are independent parts, and the side magnetic conductive plate is often required to be injection-molded on the shell when the shell and the magnetic circuit system are installed, so that the process is complex. And the shell has natural disadvantages in heat resistance and heat conduction due to the material characteristics, which results in poor heat dissipation effect.
Based on the above conception and problems, the present invention provides a method for processing a housing, the housing is a single loudspeaker body, a housing structure 1 can be prepared by the method, the housing structure 1 is applied to a single loudspeaker body 100, that is, the housing structure 1 is a single loudspeaker body housing, and a magnetic circuit system 2, a vibration system 3 and other components for fixing and protecting the single loudspeaker body 100 are mounted and protected. It is understood that the speaker unit 100 can be applied to an electronic device, such as a mobile phone, a stereo set, a computer, a headset, a watch, a television, or a tablet computer, and is not limited herein.
Referring to fig. 2, fig. 3 and fig. 4, in an embodiment of the present invention, a method for processing the housing includes the following steps:
providing a strip-shaped plate 13 made of magnetic conductive metal material;
cutting the strip-shaped plate 13 by using a punching process to obtain a strip-shaped body portion 132 and a plurality of magnetic conduction plates 12 formed on the strip-shaped body portion 132, wherein a gap 133 is formed between every two adjacent magnetic conduction plates 12;
bending the strip-shaped body portion 132 into a closed-loop structure 14 by using a bending process, so that two ends of the strip-shaped body portion 132 are matched to form an interface 141, and the closed-loop structure 14 has a cavity 111;
bending the plurality of magnetic conduction plates 12 towards the inside of the accommodating cavity 111 by adopting a side-pushing process;
and connecting and sealing the interface 141 by adopting a welding process or a riveting process to obtain the shell structure 1.
In the present embodiment, the strip-shaped plate 13 is a material for processing and forming the shell structure 1, and the material of the strip-shaped plate 13 is a metal material, such as steel, iron, alloy, metal plate, and the like, and is specifically selected according to the practical application environment, and is not limited herein. Of course, in other embodiments, the material of the strip-shaped plate 13 may also be a plastic material or other composite materials, and is not limited herein. Alternatively, the strip-shaped sheet 13 is in the form of an elongated plate-shaped structure, so that the annular housing structure 1 can be formed easily by machining.
According to the processing method of the shell, the strip-shaped plate 13 is directly punched and blanked to form the strip-shaped body part 132 and the magnetic conduction plates 12, the strip-shaped body part 132 and the magnetic conduction plates 12 are bent for multiple times to form the closed-loop structure 14, the closed-loop structure 14 is connected and sealed to form the shell structure 1 by adopting a welding process or a riveting process, and the strip-shaped plate 13 is not required to be subjected to stretch forming, so that the processing process of shell processing is greatly simplified, and mass production is facilitated.
It can be understood that, before the strip-shaped plate 13 is cut by the punching process, the actual size of the strip-shaped plate 13 is determined according to the size and structure of the speaker unit 100 of the housing structure 1, that is, the strip-shaped plate 13 is cut into a strip-shaped plate material band with a specific size according to the structure size of the housing structure 1, and then the strip-shaped plate material band is cut by the punching process to form the strip-shaped body portion 132 and the plurality of magnetic conductive plates 12 formed on the strip-shaped body portion 132.
In the present embodiment, the strip-shaped body portion 132 and the plurality of magnetic conductive plates 12 integrally connected to the strip-shaped body portion 132 are formed by cutting the strip-shaped plate 13. It can be understood that there is a gap 133 between two adjacent magnetic conductive plates 12. And bending the cut strip-shaped plate 13, that is, the strip-shaped body portion 132 and the plurality of magnetic conductive plates 12 integrally connected to the strip-shaped body portion 132, to form a closed loop structure 14, where two end portions of the strip-shaped body portion 132 are in butt-joint fit with each other to form an interface 141 (as shown in fig. 3 and 4).
It can be understood that, the closed-loop structure 14 formed after bending is further bent by using a side-pushing process to bend the plurality of magnetic conductive plates 12 toward the inside of the accommodating cavity 111, so that the plurality of magnetic conductive plates 12 and the strip-shaped body portion 132 form an included angle. And finally, connecting and sealing the interface 141 by adopting a welding process or a riveting process to obtain the shell structure 1.
According to the processing method of the shell, the material does not need to be stretched and formed, all characteristic structures of the shell structure 1 are processed at the stage that the strip-shaped plate 13 is a plane material belt, and then the strip-shaped plate is punched, bent and formed, so that the processing process is greatly simplified, and the mass production is easy. Meanwhile, all characteristic structures of the shell structure 1 are obtained by processing the strip-shaped plate 13 in a plane material belt stage, so that the shell flatness of the processed shell structure 1 is effectively ensured, the processing precision of each characteristic and the like are ensured, and the processing precision is obviously improved; and the forming mode of the shell structure 1 is simple, the production efficiency of the shell structure 1 can be greatly improved, and the processing cost is reduced.
In an embodiment, as shown in fig. 2, the strip-shaped plate 13 has a side edge 131 on one side and a strip-shaped body 132 on the other side, and the step of cutting the strip-shaped plate 13 by using the die-cutting process includes:
the side edge 131 is cut, a plurality of U-shaped notches 133 are formed at intervals on the side edge 131, and a magnetic conductive plate 12 connected to the strip-shaped body portion 132 is formed between two adjacent notches 133.
In this embodiment, when the strip-shaped plate 13 is cut, the side edge 131 of the strip-shaped plate 13 is cut, so that a plurality of U-shaped notches 133 arranged at intervals are formed on the side edge 131 of the cut strip-shaped plate 13, thereby forming the strip-shaped body portion 132 and a plurality of magnetic conductive plates 12 integrally connected with the strip-shaped body portion 132, and thus a magnetic conductive plate 12 connected to the strip-shaped body portion 132 is formed between two adjacent notches 133 on the side edge 131.
It can be understood that the shell structure 1 is formed by processing the strip-shaped plate 13, so as to ensure the consistency between the strip-shaped body portion 132 and the material of the magnetic conduction plate 12, and thus the shell structure 1 formed by processing the metal strip-shaped plate 13 effectively improves the heat resistance, heat conduction and heat dissipation effects.
In an embodiment, as shown in fig. 2, the number of the magnetic conducting plates 12 is four, and the step of bending the strip-shaped body portion 132 into the closed-loop structure 14 by using the bending process includes:
the strip-shaped body portion 132 between two adjacent magnetic conducting plates 12 is bent successively, and bent three times in sequence, and bent 90 degrees at each time, so that the strip-shaped body portion 132 forms a rectangular closed-loop structure 14 with a cavity 111, each magnetic conducting plate 12 is located in the middle of each strip-shaped body portion 132 of the rectangular closed-loop structure 14, two magnetic conducting plates 12 on the two opposite strip-shaped body portions 132 are arranged oppositely, and two ends of each strip-shaped body portion 132 are arranged oppositely to form the interface 141.
It can be understood that the shell structure 1 formed in this embodiment may be a rectangular frame structure, the strip-shaped plate 13 forms four protruding structures of the magnetic conductive plates 12 in the punching process, so that the strip-shaped body 132 between two adjacent magnetic conductive plates 12 is bent in a direction from one end of the strip-shaped body 132 to the other end, so that the strip-shaped body 132 between two adjacent magnetic conductive plates 12 is bent in 90 degrees, a first bending is completed, then the strip-shaped body 132 between two other adjacent magnetic conductive plates 12 is bent in 90 degrees, a second bending is completed, a structure formed by bending is a U-shaped structure, and finally the strip-shaped body 132 between two other adjacent magnetic conductive plates 12 is bent in 90 degrees again, a third bending is completed, at this time, the two ends of the bar-shaped body 132 are opposite to each other and form the interface 141 in cooperation.
In the present embodiment, the rectangular closed-loop structure 14 formed by bending is composed of four strip-shaped body portions 132 connected in sequence, and each strip-shaped body portion 132 has a magnetic conductive plate 12 thereon. In order to enable the enclosure structure 1 to be applied to the speaker unit 100, among the four magnetic conductive plates 12 on the four strip-shaped body portions 132, two magnetic conductive plates 12 on two opposite strip-shaped body portions 132 are disposed opposite to each other and located in the middle of the two strip-shaped body portions 132, that is, a connecting line of the two opposite magnetic conductive plates 12 is perpendicular to a connecting line of the other two opposite magnetic conductive plates, and the two connecting lines are located at the middle point of the connecting line.
In an embodiment, as shown in fig. 1, fig. 2 and fig. 3, the step of bending the plurality of magnetic conductive plates 12 towards the inside of the cavity 111 by using a side-pushing process includes:
each of the magnetic conductive plates 12 is bent by 90 ° toward the inside of the accommodating cavity 111, so that the magnetic conductive plate 12 and the strip-shaped body portion 132 are vertically disposed.
It can be understood that, in order to enable the magnetic conductive plates 12 of the housing structure 1 to be adapted to the side magnetic conductive iron 23 in the magnetic circuit system 2 of the speaker unit 100, each magnetic conductive plate 12 is bent, that is, each magnetic conductive plate 12 is bent by 90 ° toward the receiving cavity 111, so that the magnetic conductive plate 12 and the strip-shaped body portion 132 are vertically disposed.
In an embodiment, as shown in fig. 1, 2 and 3, the method for processing the housing further includes:
and performing edge pressing treatment on the magnetic conductive plate 12 and/or the strip-shaped body part 132 to form a groove 121 on the surface of the magnetic conductive plate 12 and/or the strip-shaped body part 132.
It can be understood that, in order to enable the processed and formed housing structure 1 to be better assembled with other components of the speaker unit 100 in a matching manner, an edge pressing process needs to be performed on the magnetic conducting plate 12 and/or the strip-shaped body portion 132 during the processing process, so as to form the groove 121 on the surface of the magnetic conducting plate 12 and/or the strip-shaped body portion 132, thereby facilitating the avoiding and the spatial avoiding.
In one embodiment, the method for processing the housing further comprises: the magnetic conductive plate 12 and/or the strip-shaped body portion 132 are/is punched.
It can be understood that the magnetic conducting plate 12 and/or the strip-shaped body portion 132 are/is punched, which is beneficial to the better matching and assembling of the processed and formed shell structure 1 and other components of the speaker unit 100, and is convenient for realizing position avoidance and space avoidance; on the other hand, the edge pressing treatment is favorably carried out on the magnetic conduction plate 12 and/or the strip-shaped body part 132, and the processing yield is improved.
In one embodiment, the method for processing the housing further comprises: and electroplating the shell structure 1 by adopting an electroplating process.
It can be understood that the electroplating process is further performed on the formed housing structure 1, thereby being beneficial to improving the structural aesthetic degree of the housing structure 1 and enabling the housing structure 1 to realize other functions. In this embodiment, after the shell structure 1 is obtained, the subsequent processes such as punching and electroplating are performed to obtain a shell structure finished product.
The processing method of the shell of the invention can not only realize the specific structure which can not be realized by the traditional stretching forming mode, such as: when the side wall of the shell is stretched in the stretching process mode, a plane part with enough width needs to be reserved at the edge of the bottom of the side wall so as to ensure that the side wall is stretched and formed; the flatness may occupy the inner space of the cavity 111 of the housing structure 1, and may affect and limit the functions of other components of the speaker unit 100 installed in the cavity 111.
It can be understood that the processing method of the shell does not need to adopt a stretching process, so that the selection limit of shell structure materials, such as the hardness of the shell structure materials, is reduced, the range of selectable materials of the shell structure materials is greatly widened, and the application range is wider.
As shown in fig. 1, the present invention further provides a housing structure 1, where the housing structure 1 is manufactured by the above-mentioned housing processing method and is used for a speaker unit 100. The specific processing process of the housing structure 1 refers to the foregoing embodiments, and since the housing structure 1 adopts all the technical solutions of all the foregoing embodiments, at least all the beneficial effects brought by the technical solutions of the foregoing embodiments are achieved, and no further description is given here.
In an embodiment, as shown in fig. 1 and fig. 3, the casing structure 1 includes a casing main body 11 and a plurality of magnetic conductive plates 12, where the casing main body 11 is a rectangular ring structure, and the casing main body 11 has a cavity 111; the plurality of magnetic conductive plates 12 are arranged in the cavity 111 at intervals, and each magnetic conductive plate 12 is connected with the inner wall of the cavity 111.
In the present embodiment, the housing main body 11 of the housing structure 1 is formed by the strip-shaped body portion 132, and the housing main body 11 of the housing structure 1 is used for installing, fixing and protecting the magnetic circuit system 2, the vibration system 3, other components, and the like of the speaker unit 100. Through set up a plurality of magnetic conduction boards 12 in the appearance chamber 111 of shell main part 11 for a plurality of magnetic conduction boards 12 interval set up, and with hold the intracavity 111 inner wall connection.
It can be understood that the magnetic conducting plate 12 is a strip-shaped rectangular structure, and the magnetic conducting plate 12 has two opposite long sides and two opposite short sides, and at this time, one long side of each magnetic conducting plate 12 is connected with the inner wall of the accommodating cavity 111. Of course, in other embodiments, at least one connection section may be convexly disposed on the side wall of the cavity 111 of the housing main body 11, so that the magnetic conductive plate 12 is located in the cavity 111 and connected to the connection section, so that the housing main body 11 and the magnetic conductive plate 12 are connected into an integral structure, and at this time, a gap is further formed between the magnetic conductive plate 12 and the inner wall of the cavity 111.
In this embodiment, the magnetic conductive plate 12 may be a rectangular plate-shaped structure, and the magnetic conductive plate 12 is used for being assembled and bonded with the side magnetic conductive iron 23 of the magnetic circuit system 2, so as to facilitate the assembly of the case structure 1, the magnetic circuit system 2, and the vibration system 3.
It can be understood that, in the present embodiment, the plurality of magnetic conductive plates 12 are respectively connected with the casing main body 11 to form an integral structure, so as to effectively simplify the processing technology of the casing structure 1; meanwhile, the shell main body 11 and the magnetic conduction plate 12 are made of the same material, which is beneficial to improving the heat resistance, heat conduction and heat dissipation effects of the shell structure 1.
In this embodiment, the shell body 11 and the magnetic conductive plate 12 of the shell structure 1 may be made of the same material or different materials, which is not limited herein. Optionally, the case main body 11 and/or the magnetic conductive plate 12 are made of a metal material, which may be beneficial to improve heat resistance, heat conduction, and heat dissipation effects of the case structure 1.
In an embodiment, as shown in fig. 1 and fig. 3, a groove 121 is disposed on a side of each magnetic conductive plate 12 facing the casing main body 11, and the groove 121 extends along a length direction of the magnetic conductive plate 12.
It can be understood that the groove 121 is formed in one side, facing the cavity 111, of the magnetic conducting plate 12, so that the enclosure structure 1 is applied to the speaker unit 100, and is convenient for avoiding other components and improving the yielding space, and the assembly is better realized without limitation.
In this embodiment, the surfaces of the sides of the magnetic conductive plates 12 facing away from the cavity 111 are located on the same plane, and the surfaces of the sides of the magnetic conductive plates 12 facing the cavity 111 are located on the same plane and are flush with one end of the housing main body 11.
It will be appreciated that the housing body 11 is a rectangular ring, the housing body 11 having two long sides and two short sides. The lengths of the two magnetic conduction plates 12 connected with the two long sides of the casing main body 11 are greater than the lengths of the two magnetic conduction plates 12 connected with the two short sides of the casing main body 11. Alternatively, four magnetic conductive plates 12 are respectively disposed at the middle positions of two long sides and two short sides of the casing main body 11.
As shown in fig. 5 and fig. 6, the present invention further provides a speaker unit 100, where the speaker unit 100 includes a housing structure 1, a magnetic circuit system 2, and a vibration system 3, and the specific structure of the housing structure 1 refers to the foregoing embodiments, and since the speaker unit 100 adopts all technical solutions of all the foregoing embodiments, at least all beneficial effects brought by the technical solutions of the foregoing embodiments are provided, and no further description is provided herein.
In this embodiment, the magnetic circuit system 2 includes a magnetic yoke 21, a central magnetic circuit portion 22 and a plurality of side magnets 23, where the central magnetic circuit portion 22 and the side magnets 23 are disposed on the magnetic yoke 21, the side magnets 23 are disposed around the central magnetic circuit portion 22, a magnetic gap is formed between each side magnet 23 and the central magnetic circuit portion 22, and each side magnet 23 is directly abutted to a magnetic conductive plate 12 of the case structure 1; the vibration system 3 comprises a voice coil 31 suspended in the magnetic gap.
In the present embodiment, the magnetic yoke 21 is used for mounting and fixing the central magnetic circuit portion 22 and the plurality of side magnets 23, and the magnetic yoke 21 may be a plate-shaped structure. As shown in fig. 4, the central magnetic circuit portion 22 includes a central magnet 221 and a central magnetic plate 222, and the central magnet 221 is sandwiched between the magnetic yoke 21 and the central magnetic plate 222. Each side magnetic iron 23 can be a rectangular strip magnet, and the side magnetic irons 23 are connected with the magnetic plate 12 of the shell structure 1 in a facing manner, so that the side magnetic irons 23 surround the central magnetic circuit part 22 and form a magnetic gap with the central magnetic circuit part 22.
It can be understood that, utilize voice coil 31 to switch on with external circuit, utilize voice coil 31 to transmit electric energy to magnetic gap of magnetic circuit 2 for magnetic field that magnetic circuit 2 produced converts the electric energy into mechanical energy, thereby makes voice coil 31 take place the vibration, and drives vibration system 3 and realize vibrating the sound production, further converts mechanical energy into acoustic energy. That is, after the voice coil 31 disposed in the magnetic gap receives the externally varying alternating current signal, the voice coil is driven by the magnetic field force of the magnetic circuit system 2 to perform reciprocating cutting of the magnetic lines of force, so as to drive the diaphragm 32 of the vibration system 3 to vibrate and sound.
In this embodiment, the speaker unit 100 further includes a bottom case, which is connected to the housing structure 1 and encloses to form an accommodating cavity for installing and fixing the magnetic circuit system 2 and the vibration system 3. It can be understood that the magnetic yoke 21 of the magnetic circuit system 2 is fixedly arranged on the bottom case.
In an embodiment, as shown in fig. 5 and fig. 6, the vibration system 3 further includes a diaphragm 32 and a reinforcing portion 33, and the diaphragm 32 is connected to the housing main body 11 of the housing structure 1; the reinforcing portion 33 is located at the center of the diaphragm 32, and one side of the reinforcing portion 33 close to the magnetic gap is connected to the voice coil 31.
It can be understood that, by disposing the reinforcing portion 33 in the center of the diaphragm 32, the structural strength of the diaphragm 32 is effectively improved, and the acoustic performance of the speaker unit 100 is improved.
In this embodiment, as shown in fig. 6, the speaker unit 100 further includes a balance assembly, the balance assembly includes a centering sheet and an auxiliary diaphragm, the centering sheet includes a fixing portion and an elastic portion connected to the fixing portion, the fixing portion is connected to the housing structure 1 and the bottom case, and the elastic portion is connected to the voice coil 31; the auxiliary vibrating diaphragm is arranged on one side, facing the bottom wall of the accommodating cavity, of the centering support sheet, one end of the auxiliary vibrating diaphragm is connected with the shell structure 1 and the bottom shell, and the other end of the auxiliary vibrating diaphragm is connected with the voice coil 31.
In this embodiment, through holding the balanced subassembly that the intracavity setting comprises centering branch piece and supplementary vibrating diaphragm, so make centering branch piece pass through the fixed part and be connected with shell structure 1 and drain pan, the one end and the shell structure 1 and the drain pan of supplementary vibrating diaphragm are connected to the installation that realizes centering branch piece and supplementary vibrating diaphragm is fixed. Meanwhile, the centering disk is connected with the voice coil 31 in the magnetic gap through the elastic part, and the other end of the auxiliary vibrating diaphragm is connected with the voice coil 31 in the magnetic gap, so that the centering disk and the auxiliary vibrating diaphragm are utilized to fix one end of the voice coil 31 in the magnetic gap together, and the voice coil 31 is further prevented from sending and swinging during vibration.
In this embodiment, the voice coil 31 is a rectangular ring structure, and the voice coil 31 has two long sides and two short sides, so that the voice coil 31 is fixed by the balance assembly, and the structure is simplified and the cost is saved. As shown in fig. 6, the centering branch pieces include four, the auxiliary diaphragm includes four, each centering branch piece and an auxiliary diaphragm are correspondingly disposed, and four centering branch pieces and four auxiliary diaphragms are disposed at four corners of the voice coil 31, that is, the four centering branch pieces and the four auxiliary diaphragms are respectively connected with four corners of the voice coil 31 located in the magnetic gap.
In this embodiment, the voice coil 31 may also be connected to an external power source through the centering chip and/or the auxiliary diaphragm. It will be appreciated that the spring portion of the spider is provided with a pad and the end of the voice coil 31 within the magnetic gap is provided with a conductive pad, such that the spider is conductively connected to the conductive pad of the voice coil 31 via the pad of the spring portion.
It is understood that the speaker unit 100 is applied to an electronic terminal, and the electronic terminal may be an electronic device, such as a mobile phone, a sound box, a computer, an earphone, a watch, a television, or a tablet computer, and is not limited herein.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method for processing a shell, wherein the shell is a shell of a loudspeaker single body, and the method for processing the shell comprises the following steps:
providing a strip-shaped plate made of a magnetic conductive metal material;
cutting the strip-shaped plate by adopting a punching process to obtain a strip-shaped body part and a plurality of magnetic conduction plates formed on the strip-shaped body part, wherein a gap is formed between every two adjacent magnetic conduction plates;
bending the strip-shaped body part into a closed-loop structure by adopting a bending process so as to enable two ends of the strip-shaped body part to be matched to form an interface, wherein the closed-loop structure is provided with a containing cavity;
bending the magnetic conduction plates towards the inside of the accommodating cavity by adopting a side-pushing process;
and connecting and sealing the interfaces by adopting a welding process or a riveting process to obtain the shell structure.
2. A method of manufacturing a cover as claimed in claim 1, wherein the strip-shaped plate has a side edge on one side and a strip-shaped body portion on the other side in the longitudinal direction, and the step of cutting the strip-shaped plate by the die-cutting process includes:
and cutting the side edge, forming a plurality of U-shaped notches arranged at intervals on the side edge, and forming a magnetic conduction plate connected to the strip-shaped body part between every two adjacent notches.
3. The method according to claim 1, wherein the number of the magnetic conductive plates is four, and the step of bending the strip-shaped body into the closed-loop structure by using the bending process includes:
the strip-shaped body part between every two adjacent magnetic conduction plates is bent one by one for three times, and is bent for 90 degrees every time, so that the strip-shaped body part forms a rectangular closed loop structure with a containing cavity, each magnetic conduction plate is positioned in the middle of each strip-shaped body part of the rectangular closed loop structure, the two magnetic conduction plates on the two opposite strip-shaped body parts are arranged in a right-facing mode, and the two ends of the strip-shaped body part are arranged in a right-facing mode to form the interface.
4. The method for processing the shell according to claim 1, wherein the step of bending the plurality of magnetic conductive plates toward the cavity by using a side-pushing process includes:
and bending each magnetic conduction plate by 90 degrees towards the inside of the accommodating cavity so that the magnetic conduction plates are perpendicular to the strip-shaped body part.
5. The method of manufacturing a housing of claim 1, further comprising:
performing edge pressing treatment on the magnetic conduction plate and/or the strip-shaped body part to enable the surface of the magnetic conduction plate and/or the strip-shaped body part to form a groove;
punching the magnetic conduction plate and/or the strip-shaped body part;
and electroplating the shell structure by adopting an electroplating process.
6. A housing structure for a loudspeaker unit, wherein the housing structure is manufactured by the method for manufacturing a housing according to any one of claims 1 to 5.
7. The housing structure of claim 6, wherein the housing structure comprises:
the shell main body is formed by the strip-shaped body part, is of a rectangular annular structure and is provided with a containing cavity; and
the magnetic conduction plates are arranged in the cavity at intervals, and each magnetic conduction plate is connected with the inner wall of the cavity.
8. The housing structure according to claim 7, wherein a side of each of the magnetic conductive plates facing the housing main body is provided with a groove extending along a length direction of the magnetic conductive plate.
9. A speaker cell, comprising:
the housing structure of any one of claims 6 to 8;
the magnetic circuit system comprises a magnetic yoke, a central magnetic circuit part and a plurality of side magnetic conductive irons, wherein the central magnetic circuit part and the side magnetic conductive irons are arranged on the magnetic yoke; and
and the vibration system comprises a voice coil suspended in the magnetic gap.
10. The speaker cell of claim 9, wherein the vibration system further comprises a diaphragm and a stiffening portion, the diaphragm coupled to the housing body of the housing structure; the reinforcing part is positioned in the center of the vibrating diaphragm, and one side of the reinforcing part close to the magnetic gap is connected with the voice coil;
and/or, the central magnetic circuit part comprises a central magnet and a central magnetic conduction plate, and the central magnet is clamped between the magnetic conduction yoke and the central magnetic conduction plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010897937.9A CN111757238B (en) | 2020-08-31 | 2020-08-31 | Processing method of shell, shell structure and loudspeaker unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010897937.9A CN111757238B (en) | 2020-08-31 | 2020-08-31 | Processing method of shell, shell structure and loudspeaker unit |
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| Publication Number | Publication Date |
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| CN111757238A true CN111757238A (en) | 2020-10-09 |
| CN111757238B CN111757238B (en) | 2021-01-22 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2947257A1 (en) * | 1979-11-23 | 1981-05-27 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Reduced-size loudspeaker for use in electrodynamic system - has serial resonance elements consisting of evaluated metal shells suspended in cabinet |
| CN201181714Y (en) * | 2007-12-04 | 2009-01-14 | 黄穗阳 | Battery case and lithium ion battery with the same |
| CN105416193A (en) * | 2014-09-17 | 2016-03-23 | Dringhcf保时捷股份公司 | Loudspeaker cover |
| CN108260058A (en) * | 2017-12-26 | 2018-07-06 | 歌尔股份有限公司 | A kind of assembly technology of speaker housings and speaker housings |
| CN207854169U (en) * | 2017-12-25 | 2018-09-11 | 苏州明氏智能制造技术有限公司 | Moving-iron receiver |
| CN208783083U (en) * | 2018-11-09 | 2019-04-23 | 深圳市信维声学科技有限公司 | A kind of magnetic circuit of loudspeaker component |
| US20190246188A1 (en) * | 2016-08-31 | 2019-08-08 | Goertek Inc. | Speaker module housing, speaker module and sounding device |
-
2020
- 2020-08-31 CN CN202010897937.9A patent/CN111757238B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2947257A1 (en) * | 1979-11-23 | 1981-05-27 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Reduced-size loudspeaker for use in electrodynamic system - has serial resonance elements consisting of evaluated metal shells suspended in cabinet |
| CN201181714Y (en) * | 2007-12-04 | 2009-01-14 | 黄穗阳 | Battery case and lithium ion battery with the same |
| CN105416193A (en) * | 2014-09-17 | 2016-03-23 | Dringhcf保时捷股份公司 | Loudspeaker cover |
| US20190246188A1 (en) * | 2016-08-31 | 2019-08-08 | Goertek Inc. | Speaker module housing, speaker module and sounding device |
| CN207854169U (en) * | 2017-12-25 | 2018-09-11 | 苏州明氏智能制造技术有限公司 | Moving-iron receiver |
| CN108260058A (en) * | 2017-12-26 | 2018-07-06 | 歌尔股份有限公司 | A kind of assembly technology of speaker housings and speaker housings |
| CN208783083U (en) * | 2018-11-09 | 2019-04-23 | 深圳市信维声学科技有限公司 | A kind of magnetic circuit of loudspeaker component |
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| Publication number | Publication date |
|---|---|
| CN111757238B (en) | 2021-01-22 |
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