CN219919152U - Magnetic field changeable multi-voice coil loudspeaker - Google Patents
Magnetic field changeable multi-voice coil loudspeaker Download PDFInfo
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- CN219919152U CN219919152U CN202320881340.4U CN202320881340U CN219919152U CN 219919152 U CN219919152 U CN 219919152U CN 202320881340 U CN202320881340 U CN 202320881340U CN 219919152 U CN219919152 U CN 219919152U
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- voice coil
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- coil loudspeaker
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- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 244000089486 Phragmites australis subsp australis Species 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model relates to a loudspeaker, in order to solve the problems of complex structure, large size and high price of the existing multi-voice coil loudspeaker, a multi-voice coil loudspeaker with a variable magnetic field is provided, the multi-voice coil loudspeaker comprises a magnetic bowl, a central voice coil is arranged in the magnetic bowl, a central polar plate and a central magnetic steel are arranged in the central voice coil, the central voice coil is electrically connected with a reed, the circumference of the magnetic bowl is provided with a side edge extending upwards in a bending way, gaps are reserved between two adjacent side edges, a side edge and a side edge opposite to the side edge are sleeved with side voice coils, the top ends of the side edges where the side voice coils and the side voice coils are arranged are provided with side polar plates, and the side voice coils are electrically connected with the reed.
Description
Technical Field
The utility model relates to a loudspeaker, in particular to a multi-voice coil loudspeaker with a variable magnetic field.
Background
Most of the existing loudspeakers are single voice coils, and have the defects of monotonous tone quality and low layering sense;
the existing multi-voice coil loudspeaker has the defects that the appearance is affected, the radiating holes are excessively formed in the shell, sound waves are disturbed, sound quality is affected, and user experience is reduced; the other is to reserve a heat dissipation position in the multi-voice coil loudspeaker, and conduct heat dissipation through the form of an air duct, so that the design is generally large in size, and the user experience is not very good.
The unusual solution also has, adopts the material that the resistance is low to make the voice coil, and the small tone quality of size is ensured, and the shortcoming lies in the too expensive price.
Disclosure of Invention
The utility model aims to solve the technical problems that: in order to solve the problems of complex structure, large size and high price of the traditional multi-voice coil loudspeaker, the multi-voice coil loudspeaker with the changeable magnetic field is provided.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a magnetic field changeable many voice coil loudspeaker, includes the magnetic bowl, sets up central voice coil in the magnetic bowl, sets up central polar plate and central magnet steel in the central voice coil, and central voice coil is connected with the reed electricity, the circumference of magnetic bowl has the side of buckling upwards extension, exists the breach between the adjacent both sides limit, and the cover is equipped with limit voice coil on one side limit and the side opposite to this side limit, sets up limit polar plate on the top of limit that limit voice coil and limit voice coil place the side, and limit voice coil is connected with the reed electricity.
Further, the circumference of the magnetic bowl is provided with a long side and a short side which are bent and extend upwards, a gap is arranged between the adjacent long side and short side, and the long side is sleeved with a side voice coil.
Further, a gap exists between the side voice coil and the center voice coil.
Further, the basin frame is also provided with a magnetic bowl, a central voice coil, a central polar plate, central magnetic steel, a side voice coil and a side polar plate which are arranged in and on the magnetic bowl, reeds are respectively arranged on two sides of the bottom of the basin frame, and a sound membrane is arranged at the top of the basin frame.
The multi-voice coil loudspeaker with the variable magnetic field has the advantages that firstly, the voice coil is adopted to replace magnetic steel to serve as a side magnetic part, the wings of the magnetic bowl (the side edge which is bent upwards) are respectively regarded as iron cores, the side voice coil is regarded as an electrified coil, the magnetic size of the side voice coil can be adjusted according to different coil turns, and input current is input, so that the side magnetic steel with variable magnetic performance is formed; secondly, the side voice coil is directly wound on the wings of the magnetic bowl (the wing part is used as a voice coil winding clamp), (1) when the magnetic circuit is normally glued, the side magnet is easy to be eccentric and easy to fall off, the problem is solved by directly winding the side voice coil on the magnetic bowl, and (2) after the voice coil is wound and formed, the side voice coil and the magnetic bowl are integrated into a whole to enter a production line, so that the operation procedures of the production line are reduced, and the efficiency and the yield are improved; then the edge voice coil can play the role of a hearing aid voice coil; finally, the voice coil wire with higher temperature resistance (200 ℃) is adopted to manufacture, the temperature resistance of the product is guaranteed, the magnetic bowl has good metal heat dissipation effect, and the heat dissipation of the magnetic gap can be further solved through punching on the magnetic bowl, so that the heat dissipation problem of the static voice coil is solved.
In conclusion, the utility model has the characteristics of simple structure, small size, good heat dissipation effect and low manufacturing cost.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is an exploded view of the present utility model.
FIG. 2 is a schematic diagram of the installation of the voice coil and the magnetic bowl according to the utility model.
Fig. 3 is a magnetic circuit representation of the present utility model.
In the figure: 1. sound film, 2, basin frame, 3, reed, 4, limit polar plate, 5, limit voice coil loudspeaker voice coil, 6, magnetic bowl, 7, center polar plate, 8, center magnet steel, 9, center voice coil loudspeaker voice coil.
Detailed Description
The utility model will now be described in further detail with reference to the drawings and a preferred embodiment. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
The multi-voice coil loudspeaker with changeable magnetic field as shown in fig. 1 to 3 comprises a sound film 1, a basin frame 2, a reed 3, a side polar plate 4, a side voice coil 5, a magnetic bowl 6, a center polar plate 7, a center magnetic steel 8 and a center voice coil, wherein the magnetic bowl 6 is in a strip shape, the long side and the short side of the magnetic bowl 6 are provided with bowl openings (wings) which are bent upwards and extend for a certain distance, gaps are arranged between the bowl openings on the adjacent long side and the short side, the side voice coils 5 are sleeved on the bowl openings on the two sides on the long side, the side polar plates 4 are mounted on the two side voice coils 5 again, the center magnetic steel 8 and the center polar plate 7 are sequentially mounted on the center position of the magnetic bowl 6 from bottom to top, the center voice coil 9 is sleeved on the outer ring of the center magnetic steel 8 and the center polar plate 7 again, and a gap exists between the side voice coil 5 and the center voice coil 9
The magnetic bowl 6 and the parts mounted on the magnetic bowl 6 and in the magnetic bowl 6 are plugged together into the basin frame 2, the outer sides of two short sides of the magnetic bowl 6 are respectively provided with a reed 3, the reed 3 is respectively electrically connected with the central voice coil 9 and the sidetone coil 5 and serves as the positive electrode and the negative electrode of the central voice coil 9 and the sidetone coil 5, the reed 3 is mounted at the bottom of the basin frame 2, and the top of the basin frame 2 is provided with the sound membrane 1.
The utility model is manufactured by adopting a composite process of silica gel, cloth and silica gel in terms of material, and has the characteristics of large Cms, small damping, low THD and balanced membrane state; the technology of sticking under the dome is adopted, and the method has the characteristics of smooth connection of medium and high frequency and good high-frequency ductility.
The utility model adopts the principle that: the power-on coil generates a magnetic field, and the strength of the magnetic field generated by the power-on coil is related to the current and the turns of the coil and whether the iron core is inserted or not, and the magnetic field is stronger when the current is larger; the more the number of turns of the coil, the stronger the magnetic field; the magnetic polarity is dependent on the direction of the current.
The mode that adopts the voice coil to replace the magnet steel is made limit magnetism part: the magnetic bowl wing part is regarded as an iron core, the voice coil is regarded as an electrified coil, the magnetic size of the edge voice coil can be adjusted according to different coil turns, and input current is regulated, so that edge magnetic steel with variable magnetic performance is formed; the voice coil is directly wound on the wings of the magnetic bowl (the wings are used as a voice coil winding clamp).
The utility model adopts the mode that the voice coil is directly wound on the magnetic bowl, and solves the problems that the side magnet is easy to generate gluing eccentricity and easy to fall off when the traditional normal magnetic circuit is glued.
After being wound and formed between voice coil workshops, the part integrated with the magnetic bowl enters a production line, so that the operation procedures of the production line are reduced, the efficiency and the yield are improved, and in a specific occasion, the voice coil can play the role of a hearing aid voice coil.
The foregoing description is merely illustrative of specific embodiments of the utility model, and the utility model is not limited to the details shown, since modifications and variations of the foregoing embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model.
Claims (4)
1. The utility model provides a magnetic field changeable many voice coil loudspeaker, includes the magnetic bowl, sets up central voice coil loudspeaker voice coil in the magnetic bowl, sets up central polar plate and central magnet steel in the central voice coil loudspeaker voice coil, and central voice coil loudspeaker voice coil is connected its characterized in that with the reed electricity: the circumference of magnetic bowl has the side that buckles upwards extends, has the breach between the adjacent both sides limit, and the cover is equipped with the limit voice coil loudspeaker voice coil on one side limit and the side opposite to this side limit, sets up the limit polar plate on the top of limit voice coil loudspeaker voice coil and side limit place side of limit voice coil loudspeaker voice coil, limit voice coil and reed electricity are connected.
2. A multi-voice coil speaker with variable magnetic field as defined in claim 1, wherein: the circumference of the magnetic bowl is provided with a long side and a short side which are bent and extend upwards, a gap is arranged between the adjacent long side and short side, and the long side is sleeved with a side voice coil.
3. A multi-voice coil speaker with variable magnetic field as claimed in claim 1 or 2, wherein: a gap exists between the side voice coil and the center voice coil.
4. A multi-voice coil speaker with variable magnetic field as defined in claim 1, wherein: the basin also comprises a basin frame, wherein a magnetic bowl and a central voice coil, a central polar plate, central magnetic steel, a side voice coil and a side polar plate which are arranged in and on the magnetic bowl are arranged in the basin frame, reeds are respectively arranged on two sides of the bottom of the basin frame, and a sound membrane is arranged at the top of the basin frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320881340.4U CN219919152U (en) | 2023-04-19 | 2023-04-19 | Magnetic field changeable multi-voice coil loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320881340.4U CN219919152U (en) | 2023-04-19 | 2023-04-19 | Magnetic field changeable multi-voice coil loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219919152U true CN219919152U (en) | 2023-10-27 |
Family
ID=88433583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320881340.4U Active CN219919152U (en) | 2023-04-19 | 2023-04-19 | Magnetic field changeable multi-voice coil loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219919152U (en) |
-
2023
- 2023-04-19 CN CN202320881340.4U patent/CN219919152U/en active Active
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