Strengthened vibration type loudspeaker

Abstract

A magnet assembly is arranged in a shell and comprises a lower magnet, an annular magnet and an upper magnet which are sequentially connected in an abutting mode from bottom to top, the lower magnet is arranged on the bottom wall in the shell, the lower magnet and the upper magnet are magnetized in the vertical direction, and the magnetic poles of the sides, close to each other, of the lower magnet and the upper magnet are opposite. The annular magnet is magnetized in the horizontal direction, the magnetic pole on the outer side of the annular magnet is the same as the magnetic pole of the side, close to the annular magnet, of the lower magnet and the upper magnet, the diaphragm is arranged on the shell, the coil is connected with the wire and arranged outside the magnet assembly in a sleeving mode, and the upper end of the coil is connected with the opposite inner side of the outer edge of the diaphragm. The magnetic poles of the lower magnet, the annular magnet and the upper magnet are matched to form more magnetic induction lines on the outer side of the magnet assembly, the magnetic flux is improved, an enhanced magnetic field is formed on the outer side of the whole magnet assembly, and the magnetic field interacts with the magnetic field generated when the coil is powered on, so that the coil has a larger telescopic degree; and the diaphragm is driven to have larger amplitude.

Description

TECHNICAL FIELD

[0001] The utility model relates to loudspeaker device technical field especially relates to a kind of enhanced vibration type loudspeaker. BACKGROUND

[0002] Loudspeaker is used to change electrical signal into sound signal, and it is mainly used in the supporting industry of household appliances, computers, mobile phones, automobiles and other industries. Under the action of loudspeaker, the playing effect of music can be effectively increased, and better auditory experience can be brought.

[0003] In prior art, such as the application number 202222945177.1, a kind of multi-magnetic gap multi-sound coil loudspeaker, annular magnet is fixed by T iron, paper bowl is covered between the inner edge of annular magnet and the outer edge of yoke, the bottom end inside paper bowl is provided with sound coil, the sound intensity effect of loudspeaker is increased under the action of sound coil, and the loudspeaker has good playing effect when playing, but based on the connection mode of T iron and annular magnet, it cannot form larger magnetic field, so it cannot form enhanced effect with sound coil to improve its vibration amplitude. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of enhanced vibration type loudspeaker, more magnetic induction lines can be formed in the outer side of magnet assembly by the mutual cooperation of magnetic pole between lower magnet, annular magnet and upper magnet, the magnetic flux is improved, the enhanced magnetic field can be formed at the outer side position of entire magnet assembly, and the coil has larger telescopic degree by the interaction of magnetic field when coil is energized, the diaphragm has larger amplitude.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of: a kind of enhanced vibration type loudspeaker, including shell and:

[0006] Magnet assembly is arranged in the shell, and includes lower magnet, annular magnet and upper magnet which are sequentially abutted from bottom to top, the lower magnet is arranged on the bottom wall in the shell, the lower magnet and the upper magnet are vertically magnetized, and the magnetic poles on the side close to each other of the two are opposite, the annular magnet is magnetized along the horizontal direction, and the magnetic pole on the outer side of the annular magnet is the same as the magnetic pole on the side close to the annular magnet of the lower magnet and / or the upper magnet,

[0007] Diaphragm is arranged on the outer edge of the shell, and the magnet assembly is covered in it,

[0008] Coil is connected with wire, and is sleeved on the outer side of the magnet assembly, the upper end of the coil is connected with the opposite inner side of the outer edge of the diaphragm.

[0009] As further optimization, the annular magnet is an integral structure.

[0010] As further optimization, the annular magnet comprises a plurality of fan ring-shaped sheet magnets, each of the plurality of sheet magnets is magnetized in a horizontal direction, and the plurality of sheet magnets are bonded to form an annular structure, and the entire annular magnet can be replaced by replacing one sheet magnet.

[0011] As further optimization, the number of the sheet magnets is three to ten, preferably eight sheet magnets.

[0012] As further optimization, the lower end and the upper end of the lower magnet are S pole and N pole respectively, the lower end and the upper end of the upper magnet are N pole and S pole respectively, and the inner side and the outer side of the annular magnet are S pole and N pole respectively.

[0013] As further optimization, the inner diameter of the annular magnet is smaller than the diameters of the lower magnet and the upper magnet.

[0014] As further optimization, the thicknesses of the annular magnet and the upper magnet are smaller than the thickness of the lower magnet, and the diameter of the upper magnet is smaller than the outer diameter of the annular magnet and the diameter of the lower magnet.

[0015] As further optimization, the upper end and the lower end of the annular magnet are fixed to the upper magnet and the lower magnet respectively through the adhesive layer.

[0016] As further optimization, the lower end of the diaphragm is provided with an annular boss inside the outer edge, and the upper end of the coil is arranged on the boss.

[0017] As further optimization, the diaphragm and the shell are fixed by adhesion, and the diaphragm and the coil are fixed by adhesion, so that stable connection can be formed.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. More magnetic induction lines can be formed on the outer side of the magnet assembly through the magnetic pole cooperation among the lower magnet, the annular magnet and the upper magnet, the magnetic flux is improved, the enhanced magnetic field can be formed at the outer side of the entire magnet assembly, the coil has greater stretching degree through the interaction between the magnetic field when the coil is powered on, and the diaphragm has greater amplitude.

[0020] 2. When the annular magnet is assembled by sheet magnets, maintenance and replacement of part of the sheet magnets can be effectively performed, and replacement cost can be saved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is an explosion view of the utility model.

[0022] Figure 2 It is an explosion view of the magnet assembly of the utility model.

[0023] Figure 3 A magnetic field schematic view of the magnet assembly of the utility model.

[0024] Figure 4 A structure view of one embodiment of the annular magnet of the utility model.

[0025] Figure 5 A bottom perspective view structure view of the diaphragm of the utility model.

[0026] Figure 6 A magnetic field schematic view of the magnet assembly of the utility model. DETAILED DESCRIPTION

[0027] The following is a specific embodiment of the utility model and in combination with the drawings, the technical scheme of the utility model is further described, but the utility model is not limited to these embodiments.

[0028] As Figures 1 to 5 shown, a reinforced vibration type loudspeaker, including shell 10, magnet assembly 20, coil 30 and diaphragm 40, magnet assembly 20 is arranged in shell 10, and including from bottom to top abutment in turn lower magnet 21, annular magnet 22 and upper magnet 23, lower magnet 21 is arranged on the bottom wall in shell 10, and lower magnet 21 and upper magnet 23 are all vertical direction magnetization, and the upper side magnetic pole of the two close to each other is opposite, such as in an embodiment can be: the upper part of lower magnet 21 is N pole, lower part is S pole, the lower part of upper magnet 23 is N pole, upper part is S pole, annular magnet 22 is along horizontal direction magnetization, and the magnetic pole of its outside is same with the magnetic pole of the side close to annular magnet 22 of lower magnet 21 and upper magnet 23, based on the magnetic pole setting of lower magnet 21 and upper magnet 23, the outer ring part of annular magnet 22 is N pole, inner ring part is S pole, the outer edge of diaphragm 40 is fixedly arranged on shell 10, and magnet assembly 22 is covered in it, coil 30 is connected with wire (communication with external power supply), and is sleeved on the outside of magnet assembly 20, and the upper end of the coil 30 is fixedly connected with the opposite inner side of the outer edge of diaphragm 40 and can drive the middle part of diaphragm 40 to move.

[0029] In the utility model, through the magnetic pole mutual cooperation between lower magnet 21, annular magnet 22 and upper magnet 23, especially annular magnet 22 is located at the middle position, in combination with Figure 6As shown, the magnetic poles of the outer side of the ring-shaped magnet 22 can form more magnetic induction lines with the magnetic poles of the lower part of the lower magnet 21 and the upper part of the upper magnet 23, so that the magnetic flux can be increased, and thus an enhanced magnetic field can be formed at the outer side of the entire magnet assembly 20, and the coil 30 is sleeved on the outer side of the magnet assembly 20 and located in the magnetic field, so that when the coil 30 is energized, the magnetic field generated by the coil 30 and the magnetic field generated by the magnet assembly 20 interact and act on each other, and the enhanced magnetic field formed by the magnet assembly 20 can make the coil 30 produce a greater degree of expansion, so that the diaphragm 40 driven by the coil 30 produces a greater degree of vibration to form an enhanced vibration type loudspeaker.

[0030] In an embodiment of the present application, the ring-shaped magnet 22 is an integral structure, and the upper and lower end faces thereof are respectively bonded and fixed with the upper magnet 23 and the lower magnet 21 to form the magnet assembly 20.

[0031] In another embodiment of the present application, the ring-shaped magnet 22 comprises a plurality of fan ring-shaped sheet magnets 221, and the plurality of sheet magnets 221 are all magnetized in the horizontal direction, the magnetic poles of each sheet magnet 221 near the outer ring thereof are the same and are all N poles, the side walls of the plurality of sheet magnets 221 are bonded and fixed with each other to form a ring-shaped structure, and the bottom wall and the top wall are respectively bonded and fixed with the lower magnet 21 and the upper magnet 23. The sheet magnets 221 are used to form the ring-shaped magnet 22, on the one hand, the sheet structure is more easily magnetized than the ring-shaped structure, on the other hand, the combined state can form a stronger radiation magnetic field, and on the other hand, when the magnetic field of a certain sheet magnet 221 is weakened or the structure thereof is damaged to affect the normal working effect, only the corresponding sheet magnet 221 needs to be replaced, and the entire ring-shaped magnet 22 does not need to be replaced.

[0032] More specifically, under the same conditions, when the number of the sheet magnets 221 used is eight, the maximum magnetic force received by the coil 30 is 8123 Gauss, and when the integral ring-shaped magnet 22 is used, the maximum magnetic force received by the coil 30 is 7463 Gauss.

[0033] Different from the magnetic pole arrangement modes of the lower magnet 21, the ring-shaped magnet 22 and the upper magnet 23, in another embodiment, the lower end and the upper end of the lower magnet 21 can be respectively S poles and N poles, the lower end and the upper end of the upper magnet 23 can be respectively N poles and S poles, and the inner side and the outer side of the ring-shaped magnet 22 can be respectively S poles and N poles, and the magnet assembly 20 can also achieve the function of magnetic field enhancement.

[0034] The inner diameter of the ring-shaped magnet 22 is smaller than the diameters of the lower magnet 21 and the upper magnet 23, so that the ring-shaped magnet 22 can form an abutting connection relationship with the lower magnet 21 and the upper magnet 23 instead of a nested connection relationship.

[0035] Further, the thicknesses of the annular magnet 22 and the upper magnet 23 are less than that of the lower magnet 21, and the diameter of the upper magnet 23 is less than the outer diameter of the annular magnet 22 and the diameter of the lower magnet 21.

[0036] The outer edge protrusion 41 on the diaphragm 40 is adhesively fixed between the housing 10 and the diaphragm 40, and the diaphragm 40 and the coil 30; the lower end of the diaphragm 40 is provided with an annular boss 42 inside the outer edge protrusion 41 thereof, and the upper end of the coil 30 is adhesively fixed to the boss 42.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. An enhanced vibration type speaker, characterized by, The application relates to a magnetic field generator, which comprises: a housing, a magnet assembly arranged in the housing and comprising a lower magnet, a ring magnet and an upper magnet arranged in sequence from bottom to top, the lower magnet is arranged on a bottom wall in the housing, the lower magnet and the upper magnet are magnetized in vertical direction, and the upper sides of the two magnets are opposite in magnetic pole, the ring magnet is magnetized in horizontal direction, and the outer side of the ring magnet is the same in magnetic pole as the lower magnet and / or the side of the upper magnet close to the ring magnet, a diaphragm arranged on the housing and covering the magnet assembly, a coil connected with a wire and sleeved on the outer side of the magnet assembly, and the upper end of the coil is connected with the inner side of the diaphragm.

2. The reinforced vibration-type speaker of claim 1, wherein, The ring magnet is an integral structure.

3. The reinforced vibration-type speaker of claim 1, wherein, The ring magnet comprises a plurality of fan ring-shaped sheet magnets, the sheet magnets are magnetized in horizontal direction, and the sheet magnets are bonded to form a ring structure.

4. The reinforced vibration-type speaker according to claim 3, wherein The number of the sheet magnets is three to ten.

5. The reinforced vibration-type loudspeaker according to any one of claims 1 to 3, characterized by, The lower end and the upper end of the lower magnet are S pole and N pole respectively, the lower end and the upper end of the upper magnet are N pole and S pole respectively, and the inner side and the outer side of the ring magnet are S pole and N pole respectively.

6. The reinforced vibration-type loudspeaker according to any one of claims 1 to 3, characterized by The inner diameter of the ring magnet is smaller than the diameters of the lower magnet and the upper magnet.

7. The reinforced vibration-type speaker according to claim 6, wherein The thicknesses of the ring magnet and the upper magnet are smaller than the thickness of the lower magnet, and the diameter of the upper magnet is smaller than the outer diameter of the ring magnet and the diameter of the lower magnet.

8. The reinforced vibration-type speaker of claim 1, wherein, The upper end and the lower end of the ring magnet are fixed with the upper magnet and the lower magnet through bonding layers respectively.

9. The reinforced vibration-type speaker of claim 1, wherein, The lower end of the diaphragm is provided with a ring-shaped boss on the inner side of the outer edge of the diaphragm, and the upper end of the coil is arranged on the boss.

10. The reinforced vibration-type speaker according to claim 1 or 9, characterized by, The diaphragm and the housing are bonded and fixed, and the diaphragm and the coil are bonded and fixed.

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