Moving-coil loudspeaker device for multimedia

Abstract

The utility model discloses a moving-coil loudspeaker device used for multimedia, comprising an integral unit which comprises a multimedia loudspeaker and a rectangular frame fixedly connected to one side of the multimedia loudspeaker, a protection unit which comprises an electric telescopic rod fixedly connected to the top of the rectangular frame, and a control unit which is fixedly connected to the inner wall of the rectangular frame, the output end of the electric telescopic rod penetrates into the rectangular frame and is fixedly connected with a connecting plate, one side of the connecting plate is fixedly connected with a dustproof net, the opposite faces of the dustproof net and the filtering plate are each provided with a plurality of filtering openings distributed at equal intervals, and the dust discharging unit comprises a collecting box fixedly communicating with the bottom of the rectangular frame. When the multimedia loudspeaker is not used, the filter plate is pushed by the electric telescopic rod to block the dustproof net, so that dust and moisture in air are prevented from being attached to the sound production unit, and the multimedia loudspeaker can operate in a good state.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker device technology, and in particular to a dynamic loudspeaker device for multimedia. Background Technology

[0002] A moving-coil loudspeaker is a device that converts electrical signals into sound signals. It is widely used in the audio field. Its working principle is based on the phenomenon of electromagnetic induction. When the alternating current in the coil changes, a corresponding force is generated in the magnetic field, which drives the loudspeaker to vibrate and produce sound. Due to its high cost performance, simple structure, good durability and wide frequency response range, moving-coil loudspeakers can provide stable sound quality in various situations, so they are often used in home audio systems.

[0003] When using multimedia devices such as display screens or projectors indoors or outdoors, these devices use speakers to play sound. Some larger speakers have dustproof nets near the sound-emitting unit. Although these dustproof nets can prevent some dust from contacting the sound-emitting unit, some fine dust can easily adhere to the sound-emitting unit during long-term use, and water droplets can easily condense in humid weather, thus affecting the operation of the device. Therefore, a dynamic speaker device for multimedia is proposed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the current dynamic loudspeaker device for multimedia, the present invention is proposed.

[0006] Therefore, the purpose of this utility model is to provide a dynamic loudspeaker device for multimedia, which is suitable for solving the problem that during long-term use, some dust will pass through the dustproof mesh of the loudspeaker, making it easy for fine dust to adhere to the sound unit and for water droplets to condense in humid weather.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a dynamic loudspeaker device for multimedia, comprising:

[0008] The overall unit includes a multimedia speaker and a rectangular frame fixedly connected to one side of the multimedia speaker, wherein a dustproof mesh is fixedly connected to the inner wall of the rectangular frame;

[0009] The protective unit includes an electric telescopic rod fixedly connected to the top of a rectangular frame. The output end of the electric telescopic rod extends into the rectangular frame and is fixedly connected to a connecting plate. A filter plate is fixedly connected to one side of the connecting plate. Multiple equidistant filter openings are provided on the opposite surfaces of the dustproof net and the filter plate.

[0010] The ash removal unit includes a collection box fixedly connected to the bottom of a rectangular frame, the bottom of which has a rectangular opening, and the ash removal unit also includes a sealing component for sealing the rectangular opening.

[0011] As a preferred embodiment of the dynamic loudspeaker device for multimedia described in this utility model, the sealing assembly includes an L-shaped plate fixedly connected to one side of the filter plate, and a sealing block is fixedly connected to the bottom of the L-shaped plate, the size of which is adapted to the rectangular opening.

[0012] In a preferred embodiment of the dynamic loudspeaker device for multimedia described in this utility model, the bottom of the collection box is inclined downward toward the rectangular opening, and the top of the sealing block is curved in an arc shape.

[0013] In a preferred embodiment of the dynamic loudspeaker device for multimedia described in this utility model, a T-shaped plate is fixedly connected to the top of the multimedia loudspeaker by bolts, and a baffle is fixedly connected to the top of the T-shaped plate.

[0014] As a preferred embodiment of the dynamic loudspeaker device for multimedia described in this utility model, the top and one side of the rectangular frame are fixedly connected to a ventilation cylinder, and the end of each ventilation cylinder is threaded with a sealing cap.

[0015] As a preferred embodiment of the dynamic loudspeaker device for multimedia described in this utility model, a baffle plate is fixedly connected to one side of the multimedia loudspeaker. The baffle plate is J-shaped and has multiple ventilation holes at its bottom.

[0016] The beneficial effects of this utility model are as follows: When the multimedia speaker is not in use, the filter plate is lowered by pushing the electric telescopic rod to seal the dust screen, thereby preventing dust and moisture in the air from adhering to the sound unit and ensuring that the multimedia speaker can operate in good condition. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of the dynamic loudspeaker device for multimedia proposed in this utility model;

[0019] Figure 2 This is a schematic diagram showing the positional distribution of the filter plates proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the sealing component structure proposed in this utility model;

[0021] Figure 4 This is a cross-sectional schematic diagram of the collection box proposed in this utility model.

[0022] 100. Integrated unit; 101. Multimedia speaker; 102. Rectangular frame; 103. Dustproof net; 200. Protective unit; 201. Electric telescopic rod; 202. Connecting plate; 203. Filter plate; 204. T-shaped plate; 205. Baffle; 300. Ash discharge unit; 301. Collection box; 302. Rectangular opening; 303. Sealing assembly; 3031. L-shaped plate; 3032. Sealing block; 304. Ventilation duct; 305. Sealing cover; 306. Deflector plate. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] Example

[0028] Reference Figures 1-4 As an embodiment of the present invention, a dynamic loudspeaker device for multimedia is provided, comprising: an overall unit 100, a protective unit 200, and a dust removal unit 300.

[0029] The overall unit 100 includes a multimedia speaker 101 and a rectangular frame 102 fixedly connected to one side of the multimedia speaker 101. A dustproof net 103 is fixedly connected to the inner wall of the rectangular frame 102.

[0030] The protective unit 200 includes an electric telescopic rod 201 fixedly connected to the top of the rectangular frame 102. The output end of the electric telescopic rod 201 extends into the rectangular frame 102 and is fixedly connected to a connecting plate 202. A filter plate 203 is fixedly connected to one side of the connecting plate 202. Multiple equally spaced filter openings are provided on the opposite surfaces of the dustproof net 103 and the filter plate 203.

[0031] The ash discharge unit 300 includes a collection box 301 fixedly connected to the bottom of the rectangular frame 102. The bottom of the collection box 301 has a rectangular opening 302. The ash discharge unit 300 also includes a sealing component 303 for sealing the rectangular opening 302.

[0032] Specifically, the sealing assembly 303 includes an L-shaped plate 3031 fixedly connected to one side of the filter plate 203, and a sealing block 3032 fixedly connected to the bottom of the L-shaped plate 3031. The size of the sealing block 3032 is adapted to the rectangular opening 302.

[0033] The multimedia speaker 101 is a dynamic speaker, and a sound-generating unit is provided on one side of the multimedia speaker 101. The dustproof mesh 103 and the filter plate 203 have the same distribution, spacing, and size of filter openings. The dustproof mesh 103 and the filter plate 203 are tightly attached to each other. A gap is left between the bottom of the filter plate 203 and the rectangular frame 102 for raising and lowering the filter plate 203. When the multimedia speaker 101 is in use, the electric telescopic rod 201 drives the filter plate 203 to rise through the connecting plate 202. The dustproof net 103 overlaps with the filter port of the filter plate 203, allowing sound to pass through the dustproof net 103 and the filter port of the filter plate 203. The filter plate 203 will drive the sealing block 3032 to rise through the L-shaped plate 3031, so that the sealing block 3032 will not block the rectangular opening 302. When the multimedia speaker 101 emits sound, the dustproof net 103 and the filter plate 203 can vibrate, thereby shaking off the dust attached to the inside of the dustproof net 103 and the filter plate 203.

[0034] The dust that is shaken off falls into the collection box 301 and is discharged through the rectangular opening 302. When the multimedia speaker 101 is not in use, the electric telescopic rod 201 drives the filter plate 203 to descend, causing the dustproof net 103 and the filter opening of the filter plate 203 to be misaligned. At this time, the dustproof net 103 and the filter plate 203 are in a sealed state, thereby preventing dust and moisture in the air from passing through the dustproof net 103 and the filter plate 203. The sealing block 3032 will descend and seal the rectangular opening 302 to ensure that the rectangular frame 102 is a closed space.

[0035] In addition, the bottom of the collection box 301 slopes downward toward the rectangular opening 302, and the top of the sealing block 3032 is curved in an arc.

[0036] The collection box 301 is shaped like an inverted trapezoid. Both sides of the bottom of the collection box 301 are inclined downwards towards the rectangular opening 302 to ensure that dust can be discharged into the rectangular opening 302. The top of the sealing block 3032 is curved so that dust can slide off from the top of the sealing block 3032 to avoid dust accumulation on the sealing block 3032.

[0037] Furthermore, a T-shaped plate 204 is fixedly connected to the top of the multimedia speaker 101 by bolts, and a baffle 205 is fixedly connected to the top of the T-shaped plate 204.

[0038] The T-shaped plate 204 can be installed and removed with bolts. When used outdoors, the baffle 205 can reduce the floating dust falling onto the multimedia speaker 101, thereby preventing a large amount of floating dust in the air from passing through the dustproof net 103 and the filter plate 203 and entering the rectangular frame 102.

[0039] Furthermore, ventilation ducts 304 are fixedly connected to the top and one side of the rectangular frame 102. Each ventilation duct 304 has a sealing cap 305 threaded onto its end. A guide plate 306 is fixedly connected to one side of the multimedia speaker 101. The guide plate 306 is J-shaped and has multiple ventilation holes at its bottom.

[0040] When the dustproof net 103 and the filter plate 203 are both sealed, remove the sealing caps 305 of the two ventilation ducts 304, and then point the blower at the top ventilation duct 304 to use high-velocity air to discharge the dust in the rectangular frame 102 through the bottom ventilation duct 304. The bottom ventilation duct 304 can be connected to an external recovery pipe to collect the dust, thereby preventing the dust from drifting around the multimedia speaker 101. The deflector plate 306 is located below the top ventilation duct 304. The deflector plate 306 can disperse the air discharged into the rectangular frame 102 by the ventilation duct 304 so that the air can circulate fully in the rectangular frame 102 and discharge the dust. Some air will be discharged from the ventilation hole at the bottom of the deflector plate 306 to ensure that the dust directly below the deflector plate 306 can still be blown away by the air.

[0041] During use, when used outdoors, the T-shaped plate 204 is fixed to the top of the multimedia speaker 101 with bolts. When the multimedia speaker 101 is in use, the electric telescopic rod 201 drives the filter plate 203 to rise through the connecting plate 202, so that the dustproof net 103 overlaps with the filter opening of the filter plate 203. At this time, the sealing block 3032 rises and no longer seals the rectangular opening 302. When the multimedia speaker 101 makes a sound, the dustproof net 103 and the filter plate 203 can vibrate. The dust that falls off after being shaken off falls into the collection box 301 and is discharged through the rectangular opening 302. When the multimedia speaker 101 is not in use, the electric telescopic rod 201 drives the filter plate 203 to fall, so that the dustproof net 103 and the filter opening of the filter plate 203 are staggered. The sealing block 3032 will fall and seal the rectangular opening 302 to ensure that the rectangular frame 102 is a sealed space.

[0042] When the dustproof net 103 and the filter plate 203 are both sealed, remove the sealing caps 305 of the two ventilation ducts 304. The bottom ventilation duct 304 is connected to an external recovery pipe. Then, direct the blower towards the top ventilation duct 304 to use high-velocity air to discharge the dust in the rectangular frame 102 through the bottom ventilation duct 304. After cleaning, seal the ventilation duct 304 with the sealing cap 305.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A moving-coil loudspeaker device for multimedia, characterized by, include: The overall unit (100) includes a multimedia speaker (101) and a rectangular frame (102) fixedly connected to one side of the multimedia speaker (101), wherein a dustproof net (103) is fixedly connected to the inner wall of the rectangular frame (102); The protective unit (200) includes an electric telescopic rod (201) fixedly connected to the top of a rectangular frame (102). The output end of the electric telescopic rod (201) extends into the rectangular frame (102) and is fixedly connected to a connecting plate (202). A filter plate (203) is fixedly connected to one side of the connecting plate (202). Multiple equally spaced filter openings are provided on the opposite surfaces of the dustproof net (103) and the filter plate (203). The ash discharge unit (300) includes a collection box (301) fixedly connected to the bottom of a rectangular frame (102), the bottom of the collection box (301) having a rectangular opening (302), and the ash discharge unit (300) also includes a sealing component (303) for sealing the rectangular opening (302).

2. A moving coil loudspeaker device for multimedia according to claim 1, characterized in that: The sealing assembly (303) includes an L-shaped plate (3031) fixedly connected to one side of the filter plate (203), and a sealing block (3032) is fixedly connected to the bottom of the L-shaped plate (3031). The size of the sealing block (3032) is adapted to the rectangular opening (302).

3. A moving coil loudspeaker device for multimedia according to claim 2, characterized in that: The bottom of the collection box (301) is inclined downward toward the rectangular opening (302), and the top of the sealing block (3032) is curved in an arc.

4. A moving coil loudspeaker device for multimedia according to claim 1, characterized in that: The top of the multimedia speaker (101) is fixedly connected to a T-shaped plate (204) by bolts, and a baffle (205) is fixedly connected to the top of the T-shaped plate (204).

5. A moving coil loudspeaker device for multimedia according to claim 1, characterized in that: The top and one side of the rectangular frame (102) are fixedly connected to ventilation cylinders (304), and each ventilation cylinder (304) is threaded with a sealing cap (305) at its end.

6. A moving coil loudspeaker device for multimedia according to claim 4, characterized in that: A baffle plate (306) is fixedly connected to one side of the multimedia speaker (101). The baffle plate (306) is J-shaped and has multiple ventilation holes at its bottom.

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