Broadcasting equipment

Abstract

The utility model relates to broadcasting equipment. The broadcasting equipment provided by the utility model comprises a shell, a playing device and a pickup device, the shell comprises a main shell and a rear cover plate, the rear cover plate covers the rear end of the main shell, a first installation space is formed in the rear end of the main shell, and an installation through hole communicated with the first installation space is further formed in the middle of the side, back on to the rear cover plate, of the main shell; the playing device comprises a sound generator, a sound guide cone and a horn, the small end of the horn is connected with the mounting through hole, and the large end of the horn is located on the outer side of the shell; one side of the sound guide cone is positioned in the first mounting space and is connected with the sound generator, and the other side of the sound guide cone extends into the horn; and the sound pickup device is close to the sound generator. The broadcasting equipment provided by the utility model has the advantages that the integration of multiple functional devices is realized, the load structure is simplified, and the installation of the equipment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sound playing, in particular to a sound broadcasting device. Background Art

[0002] As a smart device with strong application performance, sound playback equipment has been used in various technical fields in recent years. Carrying it on drones is one of the common application scenarios. At the same time, drones are playing an increasingly important role in various fields such as military, police, rescue, power grid, agriculture, etc. At present, when using drones, it is necessary to independently carry multiple functional structures on the drones. For example, a broadcasting device can be carried out for large-scale aerial broadcast propaganda, which is suitable for broadcast command and dispatch in drills and rescue scenarios; a light warning device can serve as a warning, which is suitable for driving away birds, etc.; a sound pickup device can realize remote two-way dialogue, which is suitable for information transmission between rescuers and rescued persons in rescue scenarios. However, if the above-mentioned multiple functional structures are carried independently on the drone at the same time, the load structure on the drone will be complicated, which will also increase the difficulty of installation and disassembly. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a multifunctional drone-mounted device with a simple structure and capable of having multiple functions at the same time.

[0004] A broadcasting device, characterized in that it comprises: a housing, a playback device and a sound pickup device; the housing comprises a main housing and a rear cover plate, the rear cover plate covers the rear end of the main housing to form a first installation space at the rear end of the main housing, and a mounting through hole communicating with the first installation space is further provided in the middle of the side of the main housing facing away from the rear cover plate;

[0005] The playback device includes a sound generator, a sound guide cone and a horn, wherein the small end of the horn is connected to the mounting through hole, and the large end thereof is located outside the shell; one side of the sound guide cone is located in the first mounting space and connected to the sound generator, and the other side extends into the horn; the sound pickup device is close to the sound generator.

[0006] Furthermore, the sound guide cone includes a chassis portion and a conical portion, the conical portion is installed on one side of the chassis portion and extends to the outside of the mounting through hole in a direction away from the rear cover plate; the sound generator is attached to the other side of the chassis portion, and the sound generator and the sound guide cone are close to the rear cover plate.

[0007] Furthermore, the playback device also includes a connecting component, which is sleeved on the outside of the small end of the speaker and embedded together with the side of the installation through hole away from the rear cover.

[0008] Furthermore, the horn is connected to the connecting component by snap-fitting.

[0009] Furthermore, the sound pickup device includes a sound pickup microphone and a mainboard, the sound pickup microphone is arranged on the mainboard, the mainboard is located between the sound generator and the rear cover and is fixedly installed on the rear side of the main shell, and the main shell is provided with a sound pickup hole corresponding to the sound pickup microphone.

[0010] Furthermore, there are three pickup microphones, which are respectively arranged on the upper side and the left and right sides of the main board, and the main shell is provided with three pickup holes corresponding to the pickup microphones. Through the above technical solution, the sound from three directions can be enhanced and the pickup effect can be improved.

[0011] Furthermore, the broadcasting equipment also includes a light warning device, which includes a warning light and a power board, and the warning light is installed on the side of the chassis part facing away from the rear cover plate; the main shell also includes a bottom shell, which is fixedly installed on the lower end of the main shell, forming the first installation space at the bottom of the main shell, and the power board is arranged in the first installation space and is electrically connected to the warning light.

[0012] Furthermore, the main shell is a light-proof part, and the horn and the connecting part are light-transmitting parts. Through the above technical solution, the light of the warning light can only be irradiated to the front through the connecting part and the horn, thereby achieving a better warning effect.

[0013] Furthermore, the broadcasting device further comprises a connecting screw, a convex block extending downward is provided at the bottom of the main shell, an insertion hole is provided on the convex block, and the connecting screw passes through the insertion hole to sequentially connect the main shell and the bottom shell. Through the above technical solution, the device can be quickly connected to other devices such as drones through the connecting screws.

[0014] Furthermore, at least two oppositely arranged deformable buckles are provided on the inner wall of the insertion hole; along the axis of the insertion hole, the distance between the two oppositely arranged deformable buckles gradually decreases, and the connecting screw is inserted between the two oppositely arranged deformable buckles and clamped therein. Through the above technical solution, the connecting screw is not easy to fall out after being inserted into the insertion hole, thereby ensuring a stable connection between the device and other devices such as drones.

[0015] The broadcasting device provided by the utility model is able to provide installation space without affecting the normal operation of other functional devices by making certain modifications and designs to the existing playback device structure, thereby achieving the goal of basically not increasing the volume of the device, and carrying a sound pickup device and a light warning device on the original playback device, thereby designing a broadcasting device with broadcasting, sound pickup, and light warning functions at the same time, so as to realize the integration of multiple functional devices while simplifying the load structure and facilitating the installation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 An exploded diagram of the broadcasting equipment provided by the utility model;

[0017] Figure 2 A front sectional view of the broadcasting equipment provided by the utility model;

[0018] Figure 3 This is an installation diagram of a pickup microphone on a mainboard in one embodiment of the utility model;

[0019] Figure 4 A cross-sectional view of the insertion hole structure in the broadcasting equipment provided by the utility model;

[0020] Figure 5 The utility model is a cross-sectional view of the insertion hole of the broadcasting equipment after the connecting screw is inserted into the insertion hole.

[0021] In the figure, 1, shell; 11, main shell; 111, installation through hole; 112, insertion hole; 1121, deformable buckle position; 113, pickup hole; 114, bump; 12, bottom shell; 121, through hole; 13, rear cover; 131, rear cover fastening screw; 2, playback device; 21, sound generator; 211, speaker fastening screw; 22, sound guide cone; 221, chassis; 222, cone; 2 3. Speaker; 231 snap-in portion; 24. Connecting component; 241. Slot port; 3. Sound pickup device; 31. Sound pickup microphone; 32. Main board; 4. Light warning device; 41. Warning light; 42. Power board; 43. Warning light board; 431. Warning light board fastening screw; 50. Metal heat conducting plate; 51. Support portion; 52. Heat dissipation portion; 53. Metal heat conducting plate fastening screw; 60. Connecting screw. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0025] The applicant disassembled and analyzed the common functional devices currently carried on drones and found that among the various functional devices, the playback device occupies the largest volume. The reason is that most playback devices are equipped with a horn-shaped sound amplification structure. If the playback device is simply combined with other devices, the sound amplification structure of the playback device will easily block other functional structures and affect the normal operation of other devices. In response to this discovery, the applicant has made certain modifications and designs to the existing playback device structure so that it can provide installation space without affecting the normal operation of other functional devices, and basically does not increase the volume of the device. At the same time, the original playback device is equipped with a sound pickup device and a light warning device, thereby designing a broadcasting device with broadcasting, sound pickup, and light warning functions at the same time, so as to realize the integration of multiple functional devices while simplifying the load structure and facilitating the installation of the equipment.

[0026] Please refer to Figure 1-5 , Figure 1 An exploded diagram of the broadcasting device provided by the utility model, Figure 2 The front view of the broadcasting device provided by the utility model is as follows: Figure 3 This is a diagram of installing a pickup microphone on a mainboard in one embodiment of the utility model. Figure 4 A cross-sectional view of the insertion hole structure of the broadcasting equipment provided by the utility model, Figure 5 The utility model is a cross-sectional view of the insertion hole of the broadcasting equipment after the connecting screw is inserted into the insertion hole.

[0027] The utility model provides a broadcasting device, comprising a housing 1, a broadcasting device 2, a sound pickup device 3 and a light warning device 4.

[0028] The housing 1 includes a main housing 11, a bottom housing 12 and a rear cover 13. The main housing 11 is a semi-enclosed structure with openings on the rear side and the lower side. The rear cover 13 covers the opening on the rear side of the main housing 11 and forms a first installation space with the rear end of the main housing 11. The bottom housing 12 is fixedly mounted on the opening on the lower side of the main housing 11 and forms a second installation space with the bottom of the main housing 11. The first installation space is connected to the second installation space. In the front-to-back direction, a mounting through hole 111 is also opened in the middle of the side of the main housing 11 facing away from the rear cover 13 and connected to the first installation space. The axis of the mounting through hole 111 extends in the front-to-back direction.

[0029] The playback device 2 includes a sound generator 21, a sound guide cone 22, a horn 23 and a connecting component 24. The sound generator 21 and the sound guide cone 22 are arranged in the first installation space. Specifically, the sound guide cone 22 includes a base portion 221 and a cone portion 222. The cone portion 222 is installed on one side of the base portion 222 and extends to the outside of the installation through hole 111 in a direction away from the rear cover 13. The sound generator 21 is attached to the other side of the base portion 221. The sound generator 21 and the sound guide cone 22 are fixedly installed in the main shell 11 and close to the rear side of the main shell 11. The axis of the horn 23 is parallel to the axis of the installation through hole 111, and its small end is located on the side close to the installation through hole 111. The connecting component 24 is sleeved on the outside of the small end of the horn 23. The connecting component 24 and the horn 23 are embedded and fixedly installed on the side of the installation through hole 111 away from the rear cover 13. Furthermore, since the power of the sound generator 21 is relatively large, a large amount of heat will be generated during operation. In order to avoid damage to the sound generator 21 itself and other components due to excessive temperature, the device is also provided with a metal heat conductive plate 50, and the metal heat conductive plate 50 is connected between the sound generator 21 and the rear cover 13. The metal heat conductive plate 50 includes a support portion 51 extending from the rear cover 13 toward the sound generator 21, and a heat dissipation portion 52 whose extension direction is perpendicular to the extension direction of the support portion 51 and is in contact with the sound generator 21. The metal heat conductive plate 50 has good thermal conductivity, and the heat generated by the sound generator 21 can be transferred to the rear cover 13 through the metal heat conductive plate 50 and then dissipated into the air.

[0030] In this embodiment, the sound generator 21, the sound guide cone 22, and the main shell 11 are fixedly connected by the speaker fastening screws 211, and the metal heat conductive plate 50, the sound generator 21, and the rear cover are fixedly connected by the metal heat conductive plate fastening screws 53. The outer circumference of the small end of the speaker 23 is evenly provided with a clamping portion 231, and the inner ring of the connecting component 24 is provided with a number and position of the clamping openings 241 corresponding to the clamping portion 231. The connecting component 24 is fixed to the outer side of the small end of the speaker 23 through the snap-fitting sleeve formed by the clamping portion 231 and the clamping opening 241. The connecting component 24 is fixed and embedded in the front end of the mounting through hole 111 by adhesive, thereby realizing the connection between the speaker 23 and the main shell 11. When the connection is completed, the sound generator 21 fits with the chassis portion 221, and the conical portion 222 passes through the mounting hole 111 into the interior of the horn 23. Through such cooperation, the sound emitted by the sound generator 21 can be amplified by the horn 23 and can be transmitted farther. Preferably, the material of the metal heat conductive plate 50 and the rear cover plate 13 can be selected from materials with excellent thermal conductivity such as copper heat pipes, aluminum alloys, copper plates, and magnesium alloys. In other embodiments, the horn 23 and the connecting component 24 can be connected and fixed by adhesive fixation or by directly combining the horn 23 and the connecting component 24 into one body, but it is not limited to this.

[0031] The sound pickup device 3 includes a sound pickup microphone 31 and a main board 32. The sound pickup microphone 31 is arranged on the main board 32. The main board 32 is arranged in the first installation space. The main board 32 is located between the heat dissipation part 52 and the back cover 13. At the same time, the main shell 11 is provided with sound pickup holes 113 whose positions and numbers correspond one-to-one to the sound pickup microphones 31, and the sound pickup holes 113 are close to the sound pickup microphone 31.

[0032] In this embodiment, the main board 32 and the rear cover 13 are fixed together on the rear end surface of the main shell 11 by the rear cover fastening screws 131. At the same time, the sound pickup device 3 is provided with three sound pickup microphones 31, which are respectively arranged on the upper, left and right sides of the main board 32. Correspondingly, corresponding sound pickup holes 113 are opened on the upper, left and right end surfaces of the main shell 11. By arranging the sound pickup microphones 31 in three directions, the sound from the three directions can be enhanced and the sound pickup effect can be improved. Preferably, the sound pickup microphone 31 can adopt a MEMS microphone, which has improved noise elimination performance, and the performance is very stable at different temperatures. The sensitivity will not be affected by temperature, vibration, humidity and time, which can further improve the sound pickup effect.

[0033] The light warning device 4 includes a warning light 41, a power board 42 and a warning light board 43. In order to enhance the warning effect, a plurality of warning lights 41 are usually provided. Specifically, a plurality of warning lights 41 are evenly arranged on a circular warning light board 43 along the circumferential direction. The warning light board 43 is fixed to the side of the chassis 221 facing away from the rear cover 13 and surrounds the outer side of the tapered portion 222. At the same time, the main shell 11 is an opaque member made of plastic materials such as PP and PS. The connecting component 24 and the horn 23 are translucent members, so that the light can be concentrated on the front through the installation through hole 111. The power board 42 is arranged in the second installation space and fixedly installed on the lower end surface of the main shell 11. The power board 42 is electrically connected to the warning light board 43 to supply power to the warning light 41 to make it emit light for warning.

[0034] In this embodiment, the warning light is a flashing light, and the warning light board 43 is fixedly mounted on the chassis 221 by the warning light board fastening screws 431, and the power board 42 is fixed to the lower end surface of the main shell 11 by screws. When the installation is completed, the centers of the connecting component 24, the mounting through hole 111, and the warning light board 43 are located on the same axis, that is, the connecting component 24 is directly opposite to the warning light board 43. After the flashing light is powered on and illuminated, since the main shell 11 is an opaque part made of opaque material, and the connecting component 24 and the horn 23 are translucent parts made of translucent material, the light can only pass through the front connecting component 24 and the horn 23, so as to better present the light of the warning light board 43 and play a better warning role. In other embodiments, the warning light board 43 can also be installed on the connecting component 24, but it is not limited to this.

[0035] In this embodiment, the broadcasting device is applied to a drone and further includes a connecting screw 60, through which the main shell 11 is connected and fixed to the drone. Specifically, the main shell 11 also includes a protrusion 114 extending toward the bottom, and the protrusion 114 is provided with an insertion hole 112, and the bottom shell 12 is provided with a through hole 121. The connecting screw 60 sequentially connects the main shell 11 and the bottom shell 12, and passes through the insertion hole 112 and the through hole 121 to be connected and fixed to a bracket on the drone. The inner wall of the insertion hole 112 is provided with at least two oppositely arranged deformable buckle positions 1121. The distance between the two relatively deformable buckles 1121 near the upper side is greater than the distance near the lower side. Along the axis of the insertion hole 112, the distance between the two relatively deformable buckles 1121 gradually decreases. When the connecting screw 60 is inserted into the insertion hole 112 from top to bottom, the two relatively deformable buckles 1121 are stretched and deformed so that they always apply a clamping force to the connecting screw 60, so that the connecting screw 60 cannot be directly loosened from the insertion hole 112 after being inserted into the insertion hole 112, ensuring a stable and fast connection between the device and the drone. Preferably, this embodiment uses two connecting screws 60 to connect with the drone, and correspondingly, the two insertion holes 112 and the through holes 121 are symmetrically arranged on both sides of the bottom of the main shell 11 and both sides of the bottom shell 12. In addition, it can also be installed on other equipment through the connecting screws 60.

[0036] The working principle of the utility model is as follows: by arranging a playback device 2 on the shell 1, the drone can make announcements through the sound generator 21 in the playback device 2 when flying with the broadcasting equipment, and the sound can be spread farther through the propagation of the sound guide cone 22 and the amplification of the horn 23. When the sound pickup device 3 makes a long-distance call to obtain feedback, a long-distance conversation can be realized through the sound pickup microphone 31, and the surrounding environment can be monitored during flight. In addition, when the drone is flying, the light warning device 4 can mark its own position through the flashing light, and when it intersects with other flying objects, the warning of the flashing light can reduce the occurrence of flight accidents. The device integrates the playback device 2, the sound pickup device 3 and the light warning device 4 on the shell 1 by modifying and designing the existing playback device structure, so that multiple functions can be played at the same time without installing each functional structure independently on the drone. The structure is simple and can also reduce the flight load of the drone and improve the endurance of the drone.

[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A broadcasting device, characterized in that: include: A housing (1), a playback device (2) and a sound pickup device (3); the housing comprises a main housing (11) and a rear cover (13); the rear cover (13) covers the rear end of the main housing (11) to form a first installation space at the rear end of the main housing (11); a mounting through hole (111) communicating with the first installation space is also provided in the middle of the main housing (11) on the side facing away from the rear cover (13); The playback device (2) comprises a sound generator (21), a sound guide cone (22) and a loudspeaker (23); the small end of the loudspeaker (23) is connected to the mounting through hole (111), and the large end thereof is located outside the housing (1); one side of the sound guide cone (22) is located in the first mounting space and connected to the sound generator (21), and the other side extends into the loudspeaker (23); the sound pickup device (3) is close to the sound generator (21).

2. The sound broadcasting device according to claim 1, characterized in that: The sound guide cone (22) comprises a chassis portion (221) and a conical portion (222); the conical portion (222) is mounted on one side of the chassis portion (221) and extends to the outside of the mounting through hole (111) in a direction away from the rear cover plate (13); the sound generator (21) is attached to the other side of the chassis portion (221); the sound generator (21) and the sound guide cone (22) are close to the rear cover plate (13).

3. The sound broadcasting device according to claim 2, characterized in that: The playback device (2) further comprises a connecting component (24), wherein the connecting component (24) is sleeved on the outside of the small end of the speaker (23) and is embedded together with the side of the mounting through hole (111) away from the rear cover plate (13).

4. The sound broadcasting device according to claim 3, characterized in that: The horn (23) and the connecting component (24) are connected by snapping.

5. The sound broadcasting device according to claim 1, characterized in that: The sound pickup device (3) comprises a sound pickup microphone (31) and a main board (32); the sound pickup microphone (31) is arranged on the main board (32); the main board (32) is located between the sound generator (21) and the rear cover (13) and is fixedly mounted on the rear side of the main shell (11); and the main shell (11) is provided with a sound pickup hole (113) corresponding to the sound pickup microphone (31).

6. The sound broadcasting device according to claim 5, characterized in that: There are three sound pickup microphones (31), which are respectively arranged on the upper side and the left and right sides of the main board (32); and three sound pickup holes (113) corresponding to the sound pickup microphones (31) are opened on the main shell (11).

7. The sound broadcasting device according to claim 2, characterized in that: The housing (1) further comprises a light warning device (4), wherein the light warning device (4) comprises a warning light (41) and a power supply board (42), wherein the warning light (41) is mounted on a side of the chassis portion (221) facing away from the rear cover plate (13); the housing (1) further comprises a bottom shell (12), wherein the bottom shell (12) is fixedly mounted on the lower end of the main shell (11), and a second installation space is formed at the bottom of the main shell (11); the power supply board (42) is arranged in the second installation space and is electrically connected to the warning light (41).

8. The sound broadcasting device according to claim 3, characterized in that: The main housing (11) is a light-proof member, and the horn (23) and the connecting component (24) are light-transmitting members.

9. The sound broadcasting device according to claim 7, characterized in that: It also includes a connecting screw (60), the bottom of the main shell (11) is provided with a protrusion (114) extending downward, the protrusion (114) is provided with an insertion hole (112), and the connecting screw (60) passes through the insertion hole (112) to sequentially connect the main shell (11) and the bottom shell (12).

10. The sound broadcasting device according to claim 9, characterized in that: At least two oppositely arranged deformable buckles (1121) are arranged on the inner wall of the insertion hole (112); along the axis of the insertion hole (112), the distance between the two oppositely arranged deformable buckles (1121) gradually decreases from top to bottom, and the connecting screw (60) is inserted between the two oppositely arranged deformable buckles (1121) and is clamped thereby.

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