阅读说明：本技术 一种车载音响的电磁屏蔽装置 (Electromagnetic shielding device of vehicle-mounted sound box ) 是由 王美美 于 2021-08-05 设计创作，主要内容包括：本发明涉及车载音响技术领域,且公开了一种车载音响的电磁屏蔽装置,包括安装环,所述安装环的圆周内壁卡接有盆架,盆架的上表面设置有电磁屏蔽网,电磁屏蔽网的圆周一侧一体成型有多个卡块,且安装环的圆周内壁开设有多个卡扣,卡扣与卡块相卡接,所述安装环的下表面开设有卡槽,卡槽内卡接有屏蔽密封垫,屏蔽密封垫圆周内壁卡接有电磁屏蔽罩,电磁屏蔽罩的圆周一侧一体成型有多个散热网片,所述盆架内设有锥形振膜。本发明可以屏蔽外界电磁信号以及对车内的电磁信号进行屏蔽,从而有效的对车载音响进行电磁屏蔽,保证了车载音响的正常使用,其次,可以阻挡电磁信号对音圈的干扰,提升了车载音响的品质。(The invention relates to the technical field of vehicle-mounted sound equipment and discloses an electromagnetic shielding device of the vehicle-mounted sound equipment, which comprises a mounting ring, wherein a basin frame is clamped on the circumferential inner wall of the mounting ring, an electromagnetic shielding net is arranged on the upper surface of the basin frame, a plurality of clamping blocks are integrally formed on one circumferential side of the electromagnetic shielding net, a plurality of buckles are arranged on the circumferential inner wall of the mounting ring and clamped with the clamping blocks, a clamping groove is formed in the lower surface of the mounting ring, a shielding sealing gasket is clamped in the clamping groove, an electromagnetic shielding cover is clamped on the circumferential inner wall of the shielding sealing gasket, a plurality of radiating meshes are integrally formed on one circumferential side of the electromagnetic shielding cover, and a conical vibrating diaphragm is arranged in the basin frame. The invention can shield external electromagnetic signals and electromagnetic signals in a vehicle, thereby effectively carrying out electromagnetic shielding on the vehicle-mounted sound, ensuring the normal use of the vehicle-mounted sound, and secondly blocking the interference of the electromagnetic signals to the voice coil, and improving the quality of the vehicle-mounted sound.)

1. The utility model provides an electromagnetic shield device of on-vehicle stereo set, includes collar (1), its characterized in that, the circumference inner wall joint of collar (1) has basin frame (2), and the upper surface of basin frame (2) is provided with electromagnetic shield net (5), and circumference one side integrated into one piece of electromagnetic shield net (5) has a plurality of fixture blocks (6), and the circumference inner wall of collar (1) has seted up a plurality of buckles (4), buckle (4) and fixture block (6) looks joint, draw-in groove (15) have been seted up to the lower surface of collar (1), and the joint has the shielding sealed pad (16) in draw-in groove (15), and the joint of the shielding sealed pad (16) circumference inner wall has electromagnetic shield cover (17), and circumference one side integrated into one piece of electromagnetic shield cover (17) has a plurality of heat dissipation net pieces (18).

2. The electromagnetic shielding device for the car audio according to claim 1, wherein the cone-shaped vibrating diaphragm (3) is arranged in the frame (2), and the dustproof sheet (19) is clamped on the circumferential inner wall of the cone-shaped vibrating diaphragm (3).

3. The electromagnetic shielding device for a car audio according to claim 1, wherein the upper surface of the electromagnetic shielding net (5) is provided with a dust screen (7), and a mounting block (8) is fixedly connected to one side of the circumference of the dust screen (7).

4. The electromagnetic shielding device for car audio according to claim 3, wherein the mounting block (8) and the mounting ring (1) are provided with mounting holes (9) on their upper surfaces.

5. The electromagnetic shielding device for the car audio according to claim 2, wherein the bottom of the cone diaphragm (3) is provided with a voice coil (10), and the bottom end of the voice coil (10) is fixedly connected with a wale (11).

6. An electromagnetic shielding device for a car audio according to claim 5, wherein a first centering chip (12) is fixedly connected to the upper surface of the washer (11).

7. The electromagnetic shielding device for the car audio according to claim 6, wherein the bottom end of the washer (11) is provided with a magnetic pole (13), and the outer wall of one side of the circumference of the magnetic pole (13) is provided with a magnet (14).

8. The electro-magnetic shielding apparatus for a car audio according to claim 7, wherein an electro-magnetic shielding plate (20) is fixedly attached to a circumferential outer wall of the voice coil (10).

9. An electromagnetic shielding apparatus for a car audio according to claim 8, wherein a second positioning stay (21) is provided in the electromagnetic shielding sheet (20).

Technical Field

The invention relates to the technical field of vehicle-mounted sound equipment, in particular to an electromagnetic shielding device of the vehicle-mounted sound equipment.

Background

As is well known, the importance of speakers in a car audio system is more prominent, so that car speakers show excellent timbre and location, compared with a household audio system, technical requirements and difficulty are much higher, adverse factors of car speakers are many and complex, and because in an inner space of an automobile, a narrow space, an irregular object, a complex environment (noise, vibration, car materials and the like) and installation positions of the speakers often cause some car speakers to be interfered by electromagnetic signals, and some intelligent artificial car speakers are particularly interfered by electromagnetic interference, the electromagnetic shielding of the car speakers is particularly important.

At present, most of the existing electromagnetic shielding devices for vehicle-mounted audio have the following defects: in the use, can not effectually carry out the electromagnetic shield to the car stereo set, and the shielding effect is poor, influences the normal use of car stereo set, and to sum up, the electromagnetic shield device of current car stereo set mostly still can not agree with the actual need well.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an electromagnetic shielding device for a vehicle-mounted sound box, which mainly solves the problems that the vehicle-mounted sound box cannot be effectively electromagnetically shielded in the using process, the shielding effect is poor, and the normal use of the vehicle-mounted sound box is influenced.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an on-vehicle stereo set's electromagnetic shield device, includes the collar, the circumference inner wall joint of collar has the basin frame, and the upper surface of basin frame is provided with electromagnetic shield net, and circumference one side integrated into one piece of electromagnetic shield net has a plurality of fixture blocks, and the circumference inner wall of collar has seted up a plurality of buckles, buckle and fixture block looks joint, the draw-in groove has been seted up to the lower surface of collar, and the joint has the shielding sealing gasket in the draw-in groove, and the sealed circumference inner wall joint of shielding sealing gasket has electromagnetic shield cover, and circumference one side integrated into one piece of electromagnetic shield cover has a plurality of radiator-grid pieces.

Furthermore, a cone-shaped vibrating diaphragm is arranged in the basin frame, and the dustproof amplitude is clamped on the circumferential inner wall of the cone-shaped vibrating diaphragm.

On the basis of the scheme, the upper surface of the electromagnetic shielding net is provided with a dustproof net, and one side of the circumference of the dustproof net is fixedly connected with an installation block.

As a further scheme of the invention, the upper surfaces of the mounting block and the mounting ring are both provided with mounting holes.

Furthermore, the bottom of the cone-shaped vibrating diaphragm is provided with a voice coil, and the bottom end of the voice coil is fixedly connected with Huasi.

On the basis of the scheme, the upper surface of the wales is fixedly connected with a first centering support sheet.

As a further scheme of the invention, the bottom end of the Huasi is provided with a magnetic conduction column, and the outer wall of one side of the circumference of the magnetic conduction column is provided with a magnet.

Furthermore, the circumference outer wall of the voice coil is fixedly connected with an electromagnetic shielding sheet.

On the basis of the scheme, a second positioning support sheet is arranged in the electromagnetic shielding sheet.

(III) advantageous effects

Compared with the prior art, the invention provides an electromagnetic shielding device of a vehicle-mounted sound box, which has the following beneficial effects:

1. according to the vehicle-mounted sound box, the electromagnetic shielding cover and the electromagnetic shielding net are arranged, so that external electromagnetic signals can be shielded, electromagnetic signals in the vehicle can be shielded, the vehicle-mounted sound box can be effectively shielded, and normal use of the vehicle-mounted sound box is guaranteed.

2. According to the invention, the magnetic field stability of Wass can be ensured through the arrangement of the magnetic conductive columns, and in addition, the first centering support piece can block the interference of electromagnetic signals to the voice coil, so that the quality of the vehicle-mounted sound box is improved.

3. According to the invention, through the arrangement of the shielding sealing gasket, the sealing performance of the electromagnetic shielding cover and the mounting ring can be ensured, so that electromagnetic signals are prevented from entering the electromagnetic shielding cover, the electromagnetic interference of external electromagnetic signals on the voice coil is reduced, and the shielding effect of the device is improved.

4. According to the invention, the electromagnetic shielding sheet and the second positioning support sheet are combined for use, so that the shielding property of the device can be further improved, and the electromagnetic interference of the voice coil is well shielded.

Drawings

Fig. 1 is a schematic perspective view of an electromagnetic shielding apparatus 1 for a car audio according to an embodiment of the present invention;

fig. 2 is an exploded view of an embodiment 1 of an electromagnetic shielding apparatus for a car audio according to the present invention;

fig. 3 is a schematic cross-sectional view of an electromagnetic shielding apparatus 1 for a car audio according to an embodiment of the present invention;

fig. 4 is a schematic internal structural view of an electromagnetic shielding apparatus 1 for a car audio according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional structure diagram of an electromagnetic shielding apparatus embodiment 2 of a car audio according to the present invention.

In the figure: 1. a mounting ring; 2. a basin stand; 3. a conical diaphragm; 4. buckling; 5. an electromagnetic shielding mesh; 6. a clamping block; 7. a dust screen; 8. mounting blocks; 9. mounting holes; 10. a voice coil; 11. huasi; 12. a first centering branch; 13. a magnetically conductive post; 14. a magnet; 15. a card slot; 16. a shielding gasket; 17. an electromagnetic shield; 18. a heat dissipation mesh sheet; 19. a dustproof sheet; 20. an electromagnetic shielding sheet; 21. and a second positioning support.

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.

Example 1

Referring to fig. 1-4, an electromagnetic shielding device for a car audio includes a mounting ring 1, a basin frame 2 is clamped on a circumferential inner wall of the mounting ring 1, an electromagnetic shielding net 5 is arranged on an upper surface of the basin frame 2, a plurality of clamping blocks 6 are integrally formed on one side of the circumference of the electromagnetic shielding net 5, a plurality of buckles 4 are arranged on the circumferential inner wall of the mounting ring 1, the buckles 4 are clamped with the clamping blocks 6, a clamping groove 15 is arranged on a lower surface of the mounting ring 1, a shielding gasket 16 is clamped in the clamping groove 15, the sealing performance of the device can be ensured by the design of the shielding gasket 16, so that the interference of external electromagnetic signals is reduced, an electromagnetic shielding cover 17 is clamped on the circumferential inner wall of the shielding gasket 16, the electromagnetic shielding cover 17 and the electromagnetic shielding net 5 are designed to shield external electromagnetic signals and electromagnetic signals in a car, so as to effectively shield the car audio, the normal use of the vehicle-mounted sound box is ensured, a plurality of radiating meshes 18 and the design of the radiating meshes 18 are integrally formed on one side of the circumference of the electromagnetic shielding cover 17, so that the vehicle-mounted sound box is conveniently cooled, the damage caused by overload use of the sound box is avoided, and the service life of the vehicle-mounted sound box is prolonged.

The cone-shaped vibrating diaphragm 3 is arranged in the basin frame 2, the dustproof amplitude 19 is clamped on the circumferential inner wall of the cone-shaped vibrating diaphragm 3, the dustproof net 7 is arranged on the upper surface of the electromagnetic shielding net 5, the dustproof net 7 is designed so as to play a dustproof role on the electromagnetic shielding net 5, the mounting block 8 is fixed on one side of the circumference of the dustproof net 7 through bolts, the mounting holes 9 are formed in the upper surfaces of the mounting block 8 and the mounting ring 1, the mounting block 8 and the mounting holes 9 are designed so as to facilitate mounting of the vehicle-mounted sound equipment, the voice coil 10 is arranged at the bottom of the cone-shaped vibrating diaphragm 3, the Huasi 11 is fixed at the bottom end of the voice coil 10 through bolts, the first centering support 12 is fixed on the upper surface of the Huasi 11 through bolts, the first centering support 12 can block interference of electromagnetic signals on the voice coil 10, the quality of the vehicle-mounted sound equipment is improved, the magnetic conduction column 13 is arranged at the bottom end of the Huasi 11, and the magnetic conduction column 13 can ensure the magnetic field stability of the Huasi 11, and a magnet 14 is arranged on the outer wall of one side of the circumference of the magnetic conduction column 13.

The working principle of the embodiment is as follows: during the use, firstly, install the device inside the car through mounting hole 9, then, when this vehicle audio uses, can shield the inside interference of external electromagnetic signal to vehicle audio through electromagnetic shield cover 17, can shield the electromagnetic signal in the car through electromagnetic shield net 5, secondly, can guarantee the magnetic field stability of huasi 11 through magnetic conduction post 13, in addition, first centering piece 12 can block electromagnetic signal to the interference of voice coil 10, thereby the quality of vehicle audio has been guaranteed, simultaneously, the leakproofness of electromagnetic shield cover 17 and collar 1 can be guaranteed to the shielding sealing gasket 16, in order to avoid electromagnetic signal to get into electromagnetic shield cover 17, thereby the electromagnetic interference of external electromagnetic signal to voice coil 10 has been reduced, the quality of vehicle audio has been guaranteed.

Example 2

Referring to fig. 5, an electromagnetic shielding device for a car audio includes an electromagnetic shielding plate 20 fixed to the outer circumferential wall of a voice coil 10 by bolts, a second positioning support plate 21 is provided in the electromagnetic shielding plate 20, and the electromagnetic shielding plate 20 and the second positioning support plate 21 are used in combination, so that the shielding performance of the device can be further improved, and the electromagnetic interference of the voice coil 10 is well shielded.

The working principle of the embodiment is as follows: when the device is used, the electromagnetic shielding sheet 20 and the second positioning support 21 are used in combination, so that the shielding performance of the device can be further improved, and the electromagnetic interference of the voice coil 10 is well shielded.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

In the description herein, it is to be noted that, unless expressly stated or limited otherwise, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection may be mechanical or electrical, and may be direct or indirect via an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, it is noted that relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.