CN221010312U

CN221010312U - Double washer horn

Info

Publication number: CN221010312U
Application number: CN202322861703.0U
Authority: CN
Inventors: 苏华代
Original assignee: Xiamen Ouying Electronic Co ltd
Current assignee: Xiamen Ouying Electronic Co ltd
Priority date: 2023-10-24
Filing date: 2023-10-24
Publication date: 2024-05-24
Anticipated expiration: 2033-10-24

Abstract

The utility model discloses a double washer loudspeaker, which comprises a base frame, a diaphragm, a voice coil, a U-shaped cup, a magnet, a first washer and a second washer, wherein the base frame is provided with a first coil and a second coil; the periphery of the diaphragm is connected with the top surface of the base frame; the voice coil is connected to the inner side surface of the diaphragm; the U-shaped cup is connected with the bottom surface of the base frame; the magnet is fixed in the U cup; the first washer is attached to the top surface of the magnet; the second washer is attached to the top surface of the first washer; the first washer and the second washer are both positioned in the ring of the voice coil, the diameter of the first washer is larger than that of the magnet, and the diameter of the second washer is larger than that of the first washer. The utility model can realize the control of the cost and the volume of the product and solve the problem that the existing magnetic circuit system is easy to leak magnetic flux.

Description

Double washer horn

Technical Field

The utility model relates to the technical field of headphones, in particular to a double-washer loudspeaker.

Background

In the field of headphones, a loudspeaker (or called a loudspeaker) is a commonly used electronic component, and is mainly used for playing audio signals, and the structural design of the loudspeaker directly affects the audio playing quality. The horn of the related art generally includes a magnetic circuit system, a vibration system, and a housing, wherein the magnetic circuit system is an important part of the horn for providing driving force, and largely determines the performance of the horn.

In order to improve the performance of some prior art horns, a magnetic circuit system adopts double magnets, such as a double washer loudspeaker disclosed in patent CN218473386U, a main washer and a secondary washer are arranged in the magnetic circuit system, the diameter of the main washer is larger than that of the main magnet and that of the secondary magnet and is larger than that of the secondary washer, so that the magnetic field distribution in the magnetic circuit system is optimized, the magnetic field intensity outside the main washer is larger, coils outside the main washer can be driven better, the magnetic leakage of the secondary magnet is smaller, and the sensitivity of the horn is improved, but the product of the patent adopts two magnets, the cost of the product is greatly increased, the thickness value of the product is larger, and the product is not suitable for the application scene of microminiature products; the first washer and the second washer are coaxially arranged to lead to a larger diameter value of the product, and the second embodiment of the patent adopts a double-magnet mode to solve the transmission loss (namely magnetic leakage phenomenon) in the magnet magnetizing process, so that the cost of the product is increased.

In summary, the magnetic leakage phenomenon of some existing double-washer loudspeakers is reduced by means of double magnets so as to improve the acoustic performance of the product, but the problem of the size of the product is caused, the double-washer loudspeakers cannot be applied to miniature products, and the production cost is greatly increased due to the double-magnet structure.

Disclosure of utility model

The utility model aims to provide a double-washer loudspeaker, which solves the problems in the prior art, and solves the problem that the existing magnetic circuit system is easy to leak magnetic flux while controlling the cost and the volume of a product.

In order to achieve the above object, the solution of the present utility model is:

A double washer loudspeaker comprises a base frame, a diaphragm, a voice coil, a U cup, a magnet, a first washer and a second washer; the periphery of the diaphragm is connected with the top surface of the base frame; the voice coil is connected to the inner side surface of the diaphragm; the U-shaped cup is connected with the bottom surface of the base frame; the magnet is fixed in the U cup; the first washer is attached to the top surface of the magnet; the second washer is attached to the top surface of the first washer; the first washer and the second washer are both positioned in the ring of the voice coil, the diameter of the first washer is larger than that of the magnet, and the diameter of the second washer is larger than that of the first washer.

The diameter difference between the magnet and the first washer is smaller than 6mm; the diameter difference between the first washer and the second washer is smaller than 6mm.

The base frame, the diaphragm, the voice coil, the U-shaped cup, the magnet, the first washer and the second washer are all coaxially arranged.

The top surface of bed frame is provided with the confession the mounting groove of diaphragm assembly, the periphery laminating of diaphragm is in on the diapire of mounting groove.

The bottom surface of bed frame is provided with the supply U cup assembly's mounting hole, the mounting hole is located the axis of bed frame.

The double washer loudspeaker also comprises a PCB (printed circuit board) arranged on the bottom surface of the base frame, a first tuning paper and a second tuning paper; the PCB is electrically connected with the magnet.

After the technical scheme is adopted, the utility model has the following technical effects:

① The first washer and the second washer are sequentially arranged on the top surface of the magnet, the diameter of the first washer is larger than that of the magnet, the diameter of the second washer is larger than that of the first washer, and the magnetic leakage phenomenon of the magnet during working is reduced through the overlapped double washer structure, so that the magnetic field utilization rate is improved, the acoustic curve of a product is optimized, and the tone quality is improved;

② Compared with the product with the same volume, the utility model can further reduce the size of the magnet on the premise of not affecting the original tone quality, thereby reducing the cost expenditure on the magnet aspect and achieving the purpose of controlling the cost;

③ Compared with magnets with the same size, the utility model can realize better sound quality effect;

④ Compared with the product with the same tone quality, the utility model can realize smaller product volume, thereby being applicable to the application scene of microminiature products.

Drawings

FIG. 1 is a perspective view of an embodiment of the present utility model;

FIG. 2 is an exploded view of an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of an embodiment of the present utility model;

FIG. 4 is a prior art magnetic flux simulation diagram;

FIG. 5 is a magnetic flux simulation diagram of an embodiment of the present utility model;

reference numerals illustrate:

1- - -a base frame; 11-an installation groove; 12- -mounting holes; 2- - -a membrane; 3- - -voice coil; 4- -a U cup; 5- - -a magnet; 6- - -a first washer; 7- - -a second washer; 8- - -a PCB board; 9- - -a first tuning paper; 10-second tuning paper.

Detailed Description

In order to further explain the technical scheme of the utility model, the utility model is explained in detail by specific examples.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Accordingly, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in place when the inventive product is used, or the orientation or positional relationship conventionally understood by those skilled in the art, is merely for convenience in describing the embodiments of the present utility model, and is not intended to indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 to 3, the utility model discloses a double washer loudspeaker, which comprises a base frame 1, a diaphragm 2, a voice coil 3, a U cup 4, a magnet 5, a first washer 6 and a second washer 7;

The periphery of the membrane 2 is connected with the top surface of the base frame 1; the voice coil 3 is connected to the inner side surface of the diaphragm 2; the U cup 4 is connected with the bottom surface of the base frame 1; the magnet 5 is fixed in the U cup 4; the first washer 6 is attached to the top surface of the magnet 5; the second washer 7 is attached to the top surface of the first washer 6;

The first washer 6 and the second washer 7 are both positioned in the ring of the voice coil 3, the diameter of the first washer 6 is larger than that of the magnet 5, and the diameter of the second washer 7 is larger than that of the first washer 6, so that the diameters of the magnet 5, the first washer 6 and the second washer 7 are increased in a stepwise manner.

Specific embodiments of the utility model are shown below.

In this embodiment, the difference between the diameter of the magnet 5 and the diameter of the first washer 6 is less than 6mm; the diameter difference between the first washer 6 and the second washer 7 is smaller than 6mm.

The base frame 1, the diaphragm 2, the voice coil 3, the U cup 4, the magnet 5, the first washer 6 and the second washer 7 are all coaxially arranged, so that the performance of the product is more stable and reliable.

The top surface of the base frame 1 is provided with a mounting groove 11 for assembling the membrane 2, and the periphery of the membrane 2 is attached to the bottom wall of the mounting groove 11.

The bottom surface of the base frame 1 is provided with a mounting hole 12 for assembling the U cup 4, and the mounting hole 12 is positioned on the axis of the base frame 1.

The utility model further comprises a PCB 8 arranged on the bottom surface of the base frame 1, and the PCB 8 is electrically connected with the magnet 5.

The utility model also comprises a first tuning paper 9 and a second tuning paper 10 which are attached to the bottom surface of the base frame 1; the audio trend is adjusted according to the actual requirements of products through matching of the first tuning paper 9 and the second tuning paper 10 with different sizes and materials.

Referring to fig. 4 and 5, which are magnetic flux simulation diagrams of the prior art and the COMSOL simulation software of the present utility model, the magnetic force factors BL output by the two are 2.90N/a and 2.91N/a, respectively, and it can be seen that the present utility model can effectively improve the magnetic flux leakage phenomenon when the magnet 5 works by adding the second washer 7.

According to the technical scheme, the first washer 6 and the second washer 7 are sequentially arranged on the top surface of the magnet 5, the diameter of the first washer 6 is larger than that of the magnet 5, the diameter of the second washer 7 is larger than that of the first washer 6, the magnetic leakage phenomenon of the magnet 5 during working is reduced through the overlapped double washer structure, the magnetic field utilization rate is improved, and therefore the acoustic curve of a product is optimized, and the tone quality is improved; compared with the product with the same volume, the utility model can further reduce the size of the magnet 5 on the premise of not influencing the original tone quality, thereby reducing the cost expenditure on the aspect of the magnet 5 and achieving the purpose of controlling the cost; compared with magnets with the same size, the utility model can realize better sound quality effect; compared with the product with the same tone quality, the utility model can realize smaller product volume, thereby being applicable to the application scene of microminiature products.

The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present utility model.

Claims

1. A double washer loudspeaker, characterized in that:

comprises a base frame, a diaphragm, a voice coil, a U-shaped cup, a magnet, a first washer and a second washer;

The periphery of the diaphragm is connected with the top surface of the base frame; the voice coil is connected to the inner side surface of the diaphragm; the U-shaped cup is connected with the bottom surface of the base frame; the magnet is fixed in the U cup; the first washer is attached to the top surface of the magnet; the second washer is attached to the top surface of the first washer;

The first washer and the second washer are both positioned in the ring of the voice coil, the diameter of the first washer is larger than that of the magnet, and the diameter of the second washer is larger than that of the first washer.

2. A dual washer loudspeaker as in claim 1, wherein:

3. A dual washer loudspeaker as in claim 1, wherein:

4. A dual washer loudspeaker as in claim 1, wherein:

5. A dual washer loudspeaker as in claim 1, wherein:

6. A dual washer loudspeaker as in claim 1, wherein:

The device also comprises a PCB board, a first tuning paper and a second tuning paper which are arranged on the bottom surface of the base frame; the PCB is electrically connected with the magnet.