CN210868146U

CN210868146U - Voice coil and loudspeaker

Info

Publication number: CN210868146U
Application number: CN201920840148.4U
Authority: CN
Inventors: 刘真锦; 刘超锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-12
Filing date: 2019-05-29
Publication date: 2020-06-26
Anticipated expiration: 2029-05-29
Also published as: CN109151685A

Abstract

The utility model discloses a voice coil loudspeaker voice coil and speaker belongs to the electroacoustic field. The voice coil is characterized in that the number of layers or the number of turns of the voice coil is increased at the part, closest to the loudspeaker diaphragm, of the voice coil, or another group or groups of independent winding coils are added, so that the negative influence of a magnetic circuit on the voice coil in the prior art is improved, the working efficiency of the voice coil is improved, and the loudspeaker obtains high-quality sound. Partial parts of the loudspeaker are provided with threads, the threads of the partial parts are mutually meshed, the part provided with the threads can accurately adjust the position of the voice coil arranged in the magnetic circuit after rotating, the negative influence of the magnetic circuit on the voice coil is improved, the production efficiency of obtaining ideal sound is improved, and the supporting column supports the auxiliary yoke core and is arranged at the opening of the voice coil to improve the working efficiency of the voice coil.

Description

Voice coil and loudspeaker

Technical Field

The utility model relates to a voice coil loudspeaker voice coil and speaker belongs to electroacoustic technology field.

Background

The electro-acoustic technology is developed in the direction of ideal sound for pursuing better quality, which is beneficial to human beings. When a voice coil of the electrodynamic loudspeaker works in a magnetic circuit, the voice coil without a coil lead wire is divided into an upper part and a lower part which have the same volume or are close to the same volume, when the voice coil is static, the lower part of the voice coil enters a magnetic gap of the magnetic circuit, and the upper part of the voice coil is outside the magnetic gap of the magnetic circuit. The loudspeaker in the prior art is characterized in that the middle part or most or all of the voice coil in the prior art is arranged in the magnetic gap of the magnetic circuit, so that the voice coil cuts more magnetic lines of the magnetic circuit during working to improve the working efficiency of the voice coil, an acting force which is generated by the magnetic circuit and has negative influence on the voice coil during working is formed, the sounding of the loudspeaker is suppressed, the expressive force is weak, and people feel monotonous and tedious. The production of prior art's speaker is that each part of direct assembly accomplishes the production, and the voice coil loudspeaker voice coil is difficult to accurate location in the magnetic circuit, can not receive the magnetic circuit negative impact to improving the voice coil loudspeaker voice coil and do accurate debugging, obtains ideal sound's production efficiency and can not improve.

SUMMERY OF THE UTILITY MODEL

The utility model provides a voice coil loudspeaker voice coil and speaker has improved the not enough of above-mentioned prior art. The utility model discloses a voice coil loudspeaker voice coil's characterized in that: as shown in fig. 1 and 2, the coils of the voice coil are stacked and wound on the voice coil bobbin, the number of layers or the number of turns of the coils is increased in the radial direction of the coil part close to the coil mouth part 1 of the coil or the coil part 2 closest to the loudspeaker diaphragm, or another set of independent winding coils or multiple sets of independent winding coils are added, and the terminals of the independent winding coils are connected in series or in parallel. The utility model discloses a loudspeaker, constitute including voice coil loudspeaker voice coil, vibrating diaphragm, book ring, bullet ripples, plate rail and magnetic circuit device, because play primary action and important influence to the drive of voice coil loudspeaker voice coil at voice coil loudspeaker voice coil inboard T type yoke core 12 to and because there are the winding untidy, appearance such as the winding imbalance in the voice coil loudspeaker voice coil of coiling, there is irregularity in the part shape of the magnetic circuit device who perhaps makes, is difficult to record equal numerical value to the measurement of voice coil loudspeaker voice coil or to the measurement of voice coil loudspeaker voice coil in magnetic circuit device, like figure 3, the utility model discloses an its characterized in that of loudspeaker: the voice coil is sleeved with the T-shaped yoke iron core 12, when the voice coil is static in a magnetic circuit, the coil lead of the voice coil is not included, the volume or the winding amplitude of the upper part 3 of the voice coil, close to or not facing the T-shaped yoke iron core 12 in a short distance, is not equal to or is not equal to the volume or the winding amplitude of the lower part 4 of the voice coil, close to or facing the T-shaped yoke iron core 12 in a radial direction, and the negative influence of the magnetic circuit on the voice coil during working is improved. Optionally, as shown in fig. 4, the utility model discloses a speaker its characterized in that: the sub-yoke core 9 is provided at a coil mouth of the voice coil, and the voice coil mouth portion 1 is close to the sub-yoke core 9 at a short distance or radially opposed to the sub-yoke core 9 when the voice coil is at rest in the magnetic circuit. The outer diameter of the magnetic or non-magnetic support column 11 is smaller than the outer diameter of the T-shaped yoke core 12, and the support column 11 connects the T-shaped yoke core 12 and the sub-yoke core 9 and supports the sub-yoke core 9 above the T-shaped yoke core 12. Optionally, the utility model discloses a speaker its characterized in that: the part parts of the loudspeaker are provided with screw threads which are mutually occluded, the position of the voice coil arranged in the magnetic circuit can be axially changed after the part provided with the screw threads rotates, and the parts provided with the screw threads are mutually adhered and fixed through an adhesive after the parts are rotated and adjusted.

Advantageous effects

The utility model discloses a voice coil loudspeaker voice coil sets up in magnetic circuit, like fig. 2 and fig. 3, can make the voice coil loudspeaker voice coil upper part 3 of the small part scroll outside the magnetic gap of magnetic circuit, do not be with closely being close to or radially facing to the volume of the voice coil loudspeaker voice coil upper part 3 of T type yoke iron core 12 and the voice coil loudspeaker voice coil lower part 4 of most scroll within the magnetic gap of magnetic circuit promptly, be with closely being close to or radially facing to the volume of voice coil loudspeaker voice coil lower part 4 of T type yoke iron core 12 equal or being close the same, make equal or close equal magnetic field intensity upper and lower two parts voice coil loudspeaker voice coil receive the effort of magnetic circuit at during operation equilibrium, the negative effects that the voice coil loudspeaker voice coil received has been improved, and make the voice coil loudspeaker voice coil can cut the magnetic force line of more magnetic circuits at the during. As shown in fig. 4, the sub-yoke core of the speaker of the present invention is disposed at the coil opening of the voice coil, and does not leave the coil opening portion 1 of the voice coil too much, but enters the upper portion 3 of the voice coil too much, so that the voice coil is not affected by the magnetic circuit when working in a balanced manner, and the voice coil is operated in a state that the magnetic force lines cutting more magnetic circuits improve the working efficiency of the voice coil. The shape of the part of the magnetic circuit device made because of mechanical equipment and voice coil loudspeaker voice coil can not be accurate the same, perhaps the shape is irregular, is difficult to make the accurate location of voice coil loudspeaker voice coil improve the negative effects that the voice coil loudspeaker voice coil received magnetic circuit in the magnetic circuit during direct assembly, the utility model discloses a loudspeaker compare with prior art's loudspeaker, can accurate adjustment voice coil loudspeaker voice coil set up the position in the magnetic circuit in production, improve the negative effects that the voice coil loudspeaker voice coil received magnetic circuit, improve the production efficiency who obtains ideal sound, the magnetic gap of magnetic circuit and vice yoke core constitute push-pull magnetic circuit structure to the voice coil loudspeaker voice coil, effectively improve the work efficiency of voice coil loudspeaker voice coil. The utility model discloses a voice coil loudspeaker voice coil and speaker compare with prior art's voice coil loudspeaker voice coil and speaker, can effectively improve the fidelity of sound, obtain than prior art's speaker stronger expressive force, more can influence people's mood, more can congeal the sound of creating dense atmosphere.

Drawings

Fig. 1 is a schematic diagram of the structure of a voice coil opening portion and a voice coil portion closest to a loudspeaker diaphragm.

Fig. 2 is a schematic structural diagram of the voice coil of the upper and lower two parts of the voice coil of the present invention.

Fig. 3 is a schematic diagram of the voice coil of the speaker of the present invention when it is stationary in the magnetic circuit.

Fig. 4 is a schematic diagram of the auxiliary yoke core of the speaker according to the present invention disposed at the voice coil opening.

Fig. 5 is a schematic cross-sectional view of a voice coil according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a speaker according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 and 5, an embodiment of the present invention provides a voice coil, including voice coil skeleton 5 and coil lead wire and the enameled wire 6 that encircles on voice coil skeleton 5, characterized by using same root enameled wire 6 to wind two-layer about 43 turns of coil on voice coil skeleton 5 is last, radially increasing and winding 3 layers of about 15 turns of stacked coil on the coil part 2 that is closest to the loudspeaker vibrating diaphragm, the coil lead wire is drawn out at coil mouth 1, enameled wire 6 and voice coil skeleton 5 pass through the adhesive bonding fixed.

Referring to fig. 6, an embodiment of the present invention provides a speaker, which includes a corrugated rim 18 and an elastic wave 15 connecting to a disk frame 16, the corrugated rim 18 connecting a diaphragm 8 in the disk frame 16, a voice coil bobbin connecting the diaphragm 8 and the elastic wave 15 to make a voice coil 7 disposed in a magnetic circuit, and a dust cap 19 covering the center of the diaphragm 8. A magnetic gap of a magnetic circuit is formed between the washer 14 and the T-shaped yoke core 12 on the T-shaped yoke plate 13, and the magnet 10 is clamped between the washer 14 and the T-shaped yoke plate 13 to form the magnetic circuit device. The outer edge of the T-shaped yoke plate 13 is connected with a non-magnetic conductive aluminum bearing piece 17, the non-magnetic conductive bearing piece 17 enables the T-shaped yoke plate 13 to form a magnetic short circuit with the washer 14 without enlarging the area, screw teeth formed on the outer side of the bearing piece 17 are meshed with screw teeth formed on the inner side of the disc frame 16, the bearing piece 17 supports the magnetic circuit device, the position of the voice coil 7 in the magnetic circuit can be axially changed when the magnetic circuit device rotates in the disc frame 16, the voice coil 7 can be accurately positioned in the magnetic circuit, the voice coil is not affected by the negative effect of the magnetic circuit when working, and required ideal sound is obtained. The screw teeth formed on the inner wall of the T-shaped yoke core 12 with the hollow interior are meshed with the screw teeth formed on the supporting column 11, the supporting column 11 extends out of the T-shaped yoke core 12 in the T-shaped yoke core 12, the supporting column 11 is connected with and supports the auxiliary yoke core 9 above the T-shaped yoke core 12, the position of the auxiliary yoke core 9 at the mouth of the voice coil can be changed axially by rotating the supporting column 11 at one end of the supporting column 11, the position of the voice coil 7 in the magnetic circuit can be changed axially, the voice coil 7 can be accurately positioned in the magnetic circuit, and the voice coil is not influenced by the negative effect of the magnetic circuit when working. The soft iron support column 11 plays a role of magnetic conduction on the auxiliary yoke core 9, the outer diameter of the support column 11 is smaller than the outer diameter of the T-shaped yoke core 12 close to the voice coil 7 at a short distance, and the magnetic conduction support column 11 is not close to the voice coil 7 at a short distance, so that the voice coil is not influenced by the negative effect of a magnetic circuit when working. The voice coil framework is sleeved with the auxiliary yoke iron core 9, the T-shaped yoke iron core 12 and the supporting column 11, a magnetic gap of a magnetic circuit and the auxiliary yoke iron core 9 form a push-pull type magnetic circuit structure, the height of the auxiliary yoke iron core 9 is larger than the amplitude range of the voice coil 7, the voice coil 7 enters the magnetic field range of the auxiliary yoke iron core 9 under the action of the acting force pushed out by the magnetic gap of the magnetic circuit during working, and the acting force pulled out by the auxiliary yoke iron core 9 is also received, so that the working efficiency of the voice coil is improved, and the voice coil can be manufactured into a high-power. The parts with screw thread on the loudspeaker are fixed by adhesive after rotating and adjusting.

The above description and drawings are only for the purpose of illustrating the invention by way of example and are not intended to limit the scope of the invention, and all changes, equivalent substitutions, variations and improvements made to the invention are within the scope of the invention.

Claims

1. The utility model provides a voice coil, includes voice coil skeleton and coil lead wire and encircles the coil on the voice coil skeleton, its characterized in that: the number of layers or turns of the coil is increased radially at the coil part close to the coil mouth part (1) of the coil or at the coil part (2) closest to the loudspeaker diaphragm, or another group or groups of independent winding coils are added.

2. A voice coil as claimed in claim 1, wherein: the terminals of the independent winding coils are connected in series or in parallel.

3. A loudspeaker, characterized by: the magnetic circuit device comprises a connecting disc frame, a folding ring and an elastic wave, wherein a voice coil arranged in a magnetic circuit is connected with the elastic wave and a vibrating diaphragm.

4. A loudspeaker according to claim 3, wherein: the voice coil is sleeved with the T-shaped yoke iron core (12), when the voice coil is static in a magnetic circuit, the voice coil does not contain a coil lead of the voice coil, and the volume or the winding width of the upper part (3) of the voice coil, which is not close to or does not radially face the T-shaped yoke iron core (12), is equal to or nearly equal to the volume or the winding width of the lower part (4) of the voice coil, which is close to or radially faces the T-shaped yoke iron core (12).

5. A loudspeaker according to claim 3 or 4, wherein: the secondary yoke core (9) is arranged at the coil mouth of the voice coil, and when the voice coil is at rest in the magnetic circuit, the coil mouth part (1) of the voice coil is close to or radially opposite to the secondary yoke core (9).

6. A loudspeaker according to claim 3, wherein: the outer edge or the outer side of the magnetic circuit device or the washer (14) or the T-shaped yoke iron plate (13) is provided with a screw tooth which is meshed with a screw tooth arranged on the inner side of the disc frame (16), or the screw tooth arranged on the non-magnetic-conduction supporting piece (17) on the magnetic circuit device or the washer (14) or the T-shaped yoke iron plate (13) is meshed with the screw tooth arranged on the inner side of the disc frame (16), and the position of the voice coil (7) arranged in the magnetic circuit can be axially changed after the part provided with the screw tooth of the loudspeaker rotates.

7. A loudspeaker according to claim 3, wherein: the outer diameter of a magnetic conduction or non-magnetic conduction supporting column (11) of the magnetic circuit device part is smaller than that of a T-shaped yoke iron core (12), the supporting column (11) is connected with the T-shaped yoke iron core (12) and an auxiliary yoke iron core (9) and supports the auxiliary yoke iron core (9) above the T-shaped yoke iron core (12), and the auxiliary yoke iron core (9), the supporting column (11) and the T-shaped yoke iron core (12) are sleeved on a voice coil framework.

8. A loudspeaker according to claim 3 or 7, wherein: a magnetic-conducting or non-magnetic-conducting supporting column (11) of the magnetic circuit device part is inserted into a hollow T-shaped yoke iron core (12), and threads formed on the supporting column (11) are meshed with threads formed on the inner wall of the T-shaped yoke iron core (12).

9. A loudspeaker according to claim 3 or 7, wherein: the magnetic or non-magnetic bearing column (11) of the magnetic circuit device part is inserted into the hollow auxiliary yoke iron core (9), and the screw teeth formed on the bearing column (11) are meshed with the screw teeth formed on the inner wall of the auxiliary yoke iron core (9).

10. A loudspeaker according to claim 3, 6 or 7, wherein: the parts with screw teeth are adhered and fixed with each other by adhesive.