Sound device based on multimedia teaching

Abstract

The invention provides a sound device based on multimedia teaching, and relates to the technical field of sound equipment, the sound device comprises a sound equipment main body, two sides of the sound equipment main body are provided with heat dissipation ports, and the sound equipment main body is rotatably provided with a plugging mechanism capable of plugging the heat dissipation ports; a humidity control mechanism is installed in the sound equipment body and can drive the plugging mechanism to open and close the heat dissipation opening. And when the humidity in the air reaches a set value, the humidity control mechanism drives the blocking mechanism to block the heat dissipation opening. According to the sound equipment based on multimedia teaching, through the arrangement of the sound equipment body, the plugging mechanism, the humidity control mechanism and the moisture-proof mechanism, the heat dissipation opening can be opened and closed according to the humidity change condition in air, when moisture is increased, the humidity control mechanism gradually plugs the heat dissipation opening, the moisture-proof mechanism is opened, and the moisture-proof mechanism is opened; the moisture-proof mechanism absorbs moisture in the sound equipment main body, thereby reducing the damage of elements in the sound equipment main body caused by excessive moisture, ensuring the service life of the sound equipment, ensuring the sound quality of the sound equipment, and ensuring the teaching quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sound technology, in particular to a sound device based on multimedia teaching. BACKGROUND

[0002] In the current education field, multimedia teaching has become the mainstream teaching method, multimedia computer-aided instruction utilizes its powerful function, comprehensively processes and controls symbol, language, text, sound, graphics, image, video and other media information, and organically combines each element according to the teaching requirements, and displays through a screen or a projector, and simultaneously cooperates with sound output and man-machine interactive operation, thereby providing rich and efficient support for the teaching or training process, in this process, the sound device as the key equipment for sound output, its performance directly affects the teaching effect.

[0003] The existing sound device for multimedia teaching is usually fixed on the top of the four corners of the classroom and hung, and various faults may occur during long time use, for example, in the plum rain season in the south, the humidity in the classroom is large, which easily causes the sound device to be damaged by damp, and the specific damage includes that the components are aged by damp, the sound device internally contains a large number of electronic components (such as capacitors, resistors, circuit boards, etc.) and metal connecting pieces; the air humidity is extremely high (usually more than 80%) in the plum rain season, the damp air penetrates into the sound device, causing the metal parts to rust and oxidize, affecting the stability of the circuit connection; meanwhile, the damp environment accelerates the aging of the capacitors and other components, and even causes short circuit failure, resulting in sound device function failure; the speaker unit is damaged, the core component of the sound device, the speaker (loudspeaker), is composed of a diaphragm, a voice coil and a magnet, the diaphragm is mostly made of paper, fiber or composite material, which is easy to absorb water in a high humidity environment, causing deformation, affecting vibration accuracy, and further causing sound distortion, soft bass and other problems; the small parts such as voice coil lead are oxidized by damp, which may be broken or have poor contact, directly causing the speaker to be silent; mold growth affects performance, the damp environment provides conditions for mold growth, mold may attach to the circuit board, speaker diaphragm and other key parts, on the one hand, mold will corrode the circuit insulation layer and cause electric leakage; on the other hand, mold on the diaphragm will change its weight and elasticity, further aggravating sound distortion, and even causing permanent damage and other problems. SUMMARY

[0004] Based on the technical problems in the background art, the present application provides a sound device based on multimedia teaching.

[0005] The sound device based on multimedia teaching provided by the present application comprises a sound main body, heat dissipation openings are formed in the two sides of the sound main body, and a blocking mechanism capable of blocking the heat dissipation openings is rotatably installed on the sound main body.

[0006] The sound body is provided with a humidity control mechanism, which can drive the sealing mechanism to seal the heat dissipation port.

[0007] When the humidity in the air reaches the set value, the humidity control mechanism drives the sealing mechanism to seal the heat dissipation port.

[0008] The sound body is also provided with a moisture absorption mechanism, and the humidity control mechanism can also open and close the moisture absorption mechanism.

[0009] When the humidity in the sound body increases, the humidity control mechanism opens the moisture absorption mechanism.

[0010] Preferably, the sealing mechanism comprises a sealing plate, a rotating shaft and a sealing frame; the sealing plate is rotatably installed in the heat dissipation port through the rotating shaft, and the sealing frame is fixedly installed on the inner wall of the heat dissipation port.

[0011] When the sealing plate rotates and abuts against the sealing frame, the heat dissipation port is sealed.

[0012] Preferably, the humidity control mechanism comprises a gear, a rack and a humidity control deformation assembly; the gear is fixedly installed at one end of the rotating shaft, the rack is slidably installed in the sound body, and the rack is engaged with the gear.

[0013] The humidity control deformation assembly can drive the rack to slide in the sound body according to the change of humidity in the air.

[0014] Preferably, the humidity control deformation assembly comprises a rubber sheet and a plant fiber plate; one side of the rubber sheet is rotatably installed on the outer wall of the sound body, the other side of the rubber sheet is rotatably connected with the rack, and the plant fiber plate is attached to the side of the rubber sheet away from the rack.

[0015] Preferably, the moisture absorption mechanism comprises a moisture-proof box, a drying block and a moving plate; the inner wall of the sound body is provided with a mounting groove, the moisture-proof box is installed in the mounting groove, the drying block is filled in the moisture-proof box, and the moving plate is slidably installed at the opening of the moisture-proof box and can seal the communication opening between the moisture-proof box and the sound body.

[0016] Preferably, the bent section of the rack is fixedly connected with the moving plate, and the outer shell of the sound body is provided with a moving groove which slidably cooperates with the rack and the moving plate.

[0017] Preferably, the drying block is a physical adsorption type desiccant.

[0018] Preferably, the outer wall of the sound body is provided with a moisture discharge port which communicates with the moisture-proof box, and the sound body is provided with a temperature-sensitive sealing mechanism which can seal the moisture discharge port.

[0019] Preferably, the temperature-sensing sealing mechanism includes a PE sheet and a metal sheet; the PE sheet is adhered to one side of the metal sheet, and the PE sheet is fixedly connected to one side of the moisture outlet.

[0020] The audio device for multimedia teaching proposed by the present invention has the following beneficial effects: through the provided audio body, blocking mechanism, humidity control mechanism and moisture-proof mechanism, the heat dissipation vent can be opened and closed according to the humidity change in the air. When the humidity increases, the humidity control mechanism gradually blocks the heat dissipation vent and opens the moisture-proof mechanism to allow the moisture-proof mechanism to absorb the moisture in the audio body, thereby reducing damage to the components inside the audio body caused by excessive humidity, ensuring the service life of the audio body, ensuring its sound quality, and ensuring the quality of teaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of an audio device for multimedia teaching proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of a heat dissipation port on the inner wall of a sound device for multimedia teaching proposed by the present invention;

[0023] Figure 3 This is a side cross-sectional view of a sealing plate in a heat dissipation port in an audio device for multimedia teaching proposed by the present invention;

[0024] Figure 4 This is a side cross-sectional view of a moisture-proof box in a main housing of an audio device for multimedia teaching proposed by the present invention;

[0025] Figure 5 A partial cross-sectional view of the outer wall of a sound body in a multimedia teaching sound device proposed by the present invention;

[0026] Figure 6 This is a cross-sectional view of the end portion of the moisture-proof box on the inner wall of the audio body in the audio device for multimedia teaching proposed by the present invention;

[0027] Figure 7 This is a three-dimensional cross-sectional view of a moisture-proof box and a humidity control mechanism in a multimedia teaching audio device proposed by the present invention;

[0028] Figure 8 This is a structural schematic diagram of a rack and a movable plate in an audio device for multimedia teaching proposed by the present invention.

[0029] In the figure: 1. Speaker body; 2. Heat dissipation vent; 3. Sealing plate; 4. Rotating shaft; 5. Sealing frame; 6. Gear; 7. Rack; 8. Rubber sheet; 9. Plant fiber board; 10. Moisture-proof box; 11. Drying block; 12. Moving plate; 13. PE sheet; 14. Metal sheet. DETAILED DESCRIPTION

[0030] Reference Figures 1-8 The present invention proposes an audio device for multimedia teaching, comprising an audio body 1, with heat dissipation vents 2 on both sides of the audio body 1, a blocking mechanism capable of blocking the heat dissipation vents 2 being rotatably installed on the audio body 1, a humidity control mechanism being installed inside the audio body 1, the humidity control mechanism being able to drive the blocking mechanism to open and close the heat dissipation vents 2, when the humidity in the air reaches a set value, the humidity control mechanism being able to drive the blocking mechanism to close the heat dissipation vents 2, a moisture absorption mechanism being also installed inside the audio body 1, the humidity control mechanism being able to switch the moisture absorption mechanism on and off, when the humidity in the audio body 1 increases, the humidity control mechanism being able to open and close the moisture absorption mechanism, and when the humidity in the audio body 1 increases, the humidity control mechanism being able to open the moisture absorption mechanism, and on rainy days, the humidity in the air increases. , the outside air enters the audio main body 1 through the heat dissipation vent 2, and the moisture in the air may cause the internal components of the audio to be damaged by moisture. At the same time, the humidity in the audio main body 1 increases, and the humidity control mechanism senses the increase in humidity in the audio main body 1. The humidity control mechanism controls the blocking mechanism to block the heat dissipation vent 2, so that the inside of the audio main body 1 and the outside are in a relatively isolated state. At the same time, the humidity control mechanism opens the moisture absorption mechanism, and the moisture absorption mechanism absorbs the moisture in the audio main body 1, reducing the impact of moisture on the internal components of the audio main body 1. When the humidity in the air decreases, the heat dissipation vent 2 is blocked again, thereby dissipating heat for the electrical components in the audio main body 1.

[0031] like Figure 2 、 Figure 3 and Figure 5 As shown in the figure, the blocking mechanism includes a blocking plate 3, a rotating shaft 4 and a sealing frame 5; the blocking plate 3 is rotatably installed in the heat dissipation port 2 through the rotating shaft 4, and the sealing frame 5 is fixedly installed on the inner wall of the heat dissipation port 2. When the blocking plate 3 rotates and abuts against the sealing frame 5, the heat dissipation port 2 is blocked. The blocking plate 3 is rotatably installed in the heat dissipation port 2 through the rotating shaft 4, and the sealing frame 5 is installed on the inner wall of the heat dissipation port 2. The sealing frame 5 and the blocking plate 3 cooperate to block the heat dissipation port 2, thereby reducing the circulation of air inside and outside. When the heat dissipation port 2 is blocked, the humidity in the audio body 1 is ensured to reduce the influence of moisture in the outside air.

[0032] like Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown in the figure, the humidity control mechanism comprises a gear 6, a rack 7 and a humidity control deformation assembly; the rack 7 is a plate-shaped structure of L type, and a plurality of teeth are arranged at equal intervals on the inner side of the rack 7 along the length direction to form a rack; the gear 6 is fixedly installed at one end of the rotating shaft 4, the rack 7 is slidingly installed in the sound body 1, and the rack 7 is engaged with the gear 6; the humidity control deformation assembly can drive the rack 7 to slide in the sound body 1 according to the change of humidity in the air; the humidity control deformation assembly senses the humidity in the air, and drives the rack 7 to slide in the inner wall of the sound body 1 after the humidity in the air increases; since the rack 7 is engaged with the gear 6, the sliding rack 7 drives the gear 6 to rotate, and the gear 6 drives the rotating shaft 4 and the blocking plate 3 to rotate synchronously and block the heat dissipation port 2, thereby reducing the humidity in the outside air entering the inside of the sound body 1; when the rack 7 slides in the inner wall of the sound body 1, the position will not be connected with the inside and outside of the sound body 1.

[0033] As shown in the figure, Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , the humidity control deformation assembly comprises a rubber sheet 8 and a plant fiber plate 9; one side of the rubber sheet 8 is rotatably installed on the outer wall of the sound body 1, the other side of the rubber sheet 8 is connected with the rack 7, and the plant fiber plate 9 is attached to the side of the rubber sheet 8 away from the rack 7; when the humidity in the air increases, the plant fiber plate 9 absorbs moisture and expands; since the rubber sheet 8 is a hydrophobic material, the expansion after absorbing moisture is almost not obvious; the water absorption thickness expansion rate of the plant fiber plate 9 is 7%-25%; the specific principle is that the plant fiber plate 9 absorbs water and expands to generate an outward expansion force, the rubber sheet 8 almost does not expand, and the expansion of the fiber plate is constrained, the uneven expansion on one side (the fiber plate side) will cause the composite material to bend to the side with small expansion amount (the rubber sheet 8 side), which is similar to the principle of “wooden board warping due to moisture”; when the rubber sheet 8 bends, since one side of the rubber sheet 8 is rotatably connected with the outer wall of the sound body 1 and the other side is rotatably connected with the rack 7, the side cannot move, the rubber sheet 8 bends and deforms, the distance between the two sides of the rubber sheet 8 becomes smaller, the rubber sheet 8 pulls the rack 7 to slide, thereby driving the blocking plate 3 to rotate and block the heat dissipation port 2, which is simple and convenient in structure.

[0034] As shown in the figure, Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown in the figure, the moisture absorption mechanism comprises a moisture-proof box 10, a drying block 11 and a moving plate 12; the drying block 11 is a physical absorption type desiccant, such as activated carbon, silica gel desiccant, molecular sieve desiccant, etc., the inner wall of the sound body 1 is provided with a mounting groove, the moisture-proof box 10 is mounted in the mounting groove, the drying block 11 is filled in the moisture-proof box 10, the moving plate 12 is slidingly mounted at the opening of the moisture-proof box 10, and the moving plate 12 can block the communication opening between the moisture-proof box 10 and the sound body 1, the bending section of the rack 7 is fixedly connected with the moving plate 12, the outer shell of the sound body 1 is provided with a moving groove slidingly matched with the rack 7 and the moving plate 12, in normal circumstances, the moving plate 12 blocks the inner opening of the moisture-proof box 10 to avoid moisture entering, when the moisture in the air increases, the moisture control deformation assembly drives the sealing plate 3 to rotate to close the heat dissipation opening 2, at the same time, the rack 7 drives the moving plate 12 to slide and open the inner opening of the moisture-proof box 10, so that the moisture in the sound body 1 is absorbed and dried, and the corrosion of the moisture on the internal elements of the sound body 1 is reduced.

[0035] As shown in the figure, Figure 1 , Figure 4 and Figure 7 , the outer wall of the sound body 1 is provided with a moisture discharge opening communicated with the moisture-proof box 10, the sound body 1 is provided with a temperature-sensitive sealing mechanism capable of blocking the moisture discharge opening, the temperature-sensitive sealing mechanism comprises a PE sheet 13 and a metal sheet 14; the linear expansion coefficient of the PE sheet 13 is usually between (10-30) x 10 -5 / ℃, the linear expansion coefficient of aluminum is usually more than 23.38 x 10 -6 / ℃ above 30℃, the PE sheet 13 is pasted on one side of the metal sheet 14, and the PE sheet 13 is fixedly connected on one side of the moisture discharge opening, in plum rain weather, the air temperature during the day is usually between 22-28℃, the temperature during the day in summer is usually between 35-38℃, and even reaches 40℃, when the plum rain season is over and the high temperature period of summer arrives, the humidity in the air will relatively decrease, at this period, the outer opening of the moisture-proof box 10 is opened, the moisture in the drying block 11 is evaporated by high temperature, in addition, a heating sheet can be installed in the drying block 11, the other end of the heating sheet extends to the inside of the sound body 1, when the elements in the sound body 1 work and heat, the heat can be transferred to the heating sheet to heat the drying block 11, so that the moisture in the drying block 11 is evaporated, and the drying block 11 can be repeatedly used.

[0036] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An audio device for multimedia teaching, characterized in that: The speaker comprises a main body (1), heat dissipation openings (2) are provided on both sides of the main body (1), and a blocking mechanism capable of blocking the heat dissipation openings (2) is rotatably mounted on the main body (1); A humidity control mechanism is installed in the acoustic body (1), and the humidity control mechanism can drive a blocking mechanism to block the heat dissipation port (2); When the humidity in the air reaches a set value, the humidity control mechanism drives the blocking mechanism to block the heat dissipation port (2); A moisture absorption mechanism is also installed in the acoustic body (1), and the humidity control mechanism can also turn the moisture absorption mechanism on and off; When the humidity in the audio body (1) increases, the humidity control mechanism opens the moisture absorption mechanism.

2. The multimedia teaching audio device according to claim 1, characterized in that: The blocking mechanism comprises a blocking plate (3), a rotating shaft (4) and a sealing frame (5); the blocking plate (3) is rotatably mounted in the heat dissipation opening (2) via the rotating shaft (4), and the sealing frame (5) is fixedly mounted on the inner wall of the heat dissipation opening (2); When the blocking plate (3) rotates and abuts against the sealing frame (5), the heat dissipation opening (2) is blocked.

3. The multimedia teaching audio device according to claim 2, characterized in that: The humidity control mechanism comprises a gear (6), a rack (7) and a humidity control deformation component; the gear (6) is fixedly mounted on one end of the rotating shaft (4), the rack (7) is slidably mounted in the acoustic body (1), and the rack (7) is meshed with the gear (6); The humidity control deformation component can drive the rack (7) to slide inside the speaker body (1) according to the change of humidity in the air.

4. The multimedia teaching audio device according to claim 3, characterized in that: The moisture control deformation component comprises a rubber sheet (8) and a plant fiber board (9); one side of the rubber sheet (8) is rotatably mounted on the outer wall of the acoustic body (1), the other side of the rubber sheet (8) is rotatably connected to the rack (7), and the plant fiber board (9) is adhered to the side of the rubber sheet (8) away from the rack (7).

5. The multimedia teaching audio device according to claim 4, characterized in that: The moisture absorption mechanism comprises a moisture-proof box (10), a drying block (11) and a movable plate (12); an inner wall of the acoustic body (1) is provided with an installation groove, the moisture-proof box (10) is installed in the installation groove, the drying block (11) is filled in the moisture-proof box (10), and the movable plate (12) is slidably installed at the opening of the moisture-proof box (10), and the movable plate (12) can block the communication opening between the moisture-proof box (10) and the acoustic body (1).

6. The multimedia teaching audio device according to claim 5, characterized in that: The bent section of the rack (7) is fixedly connected to the movable plate (12), and a movable groove that is slidably matched with the rack (7) and the movable plate (12) is provided on the outer shell of the acoustic body (1).

7. The audio device for multimedia teaching according to claim 5, characterized in that: The drying block (11) is a physical adsorption type desiccant.

8. The multimedia teaching audio device according to claim 7, characterized in that: The outer wall of the acoustic body (1) is provided with a moisture outlet communicating with the moisture-proof box (10), and the acoustic body (1) is provided with a temperature-sensing sealing mechanism capable of sealing the moisture outlet.

9. The multimedia teaching audio device according to claim 8, characterized in that: The temperature-sensing sealing mechanism comprises a PE sheet (13) and a metal sheet (14); the PE sheet (13) is adhered to one side of the metal sheet (14), and the PE sheet (13) is fixedly connected to one side of the moisture outlet.

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