CN215498989U

CN215498989U - Portable emergency broadcast transmitter

Info

Publication number: CN215498989U
Application number: CN202122278723.6U
Authority: CN
Inventors: 张百川; 梁富林; 胡海涛; 吴爽; 刘艳辉
Original assignee: Beijing Bbef Science and Technology Co Ltd
Current assignee: Beijing Bbef Science and Technology Co Ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-01-11
Anticipated expiration: 2031-09-18

Abstract

The application discloses portable emergency broadcast transmitter relates to the technical field of emergency broadcast system equipment. The radio frequency power amplifier comprises a case, a plurality of circuit boards arranged in the case and a radio frequency power amplifier module arranged in the case, wherein a top plate in the case is fixedly connected with a mounting partition plate, and the circuit boards are respectively and oppositely fixed on two side surfaces of the mounting partition plate. Set up the installation baffle in quick-witted incasement in this application, on a plurality of circuit boards all were fixed in the installation baffle, reduced the occupation space of circuit board, effectively reduced the volume size of quick-witted case, and then made things convenient for the staff to carry.

Description

Portable emergency broadcast transmitter

Technical Field

The application relates to the technical field of emergency broadcasting system equipment, in particular to a portable emergency broadcasting transmitter.

Background

The emergency broadcast is that when major natural disasters, emergency events, public health, social safety and other sudden public crises occur, the emergency broadcast can provide a rapid and quick information transmission channel, and the possible damage caused by the disaster information or the disaster is transmitted to people in the first time, so that people can know what happens in the first time, how to evacuate and avoid risks, and the loss of lives and properties is reduced to the minimum.

The national emergency broadcast system is an important component of the national emergency system and the national public service system. The emergency broadcasting system mainly comprises: the system comprises an emergency broadcast platform, a broadcast television frequency channel broadcasting system, a transmission coverage network, a receiving terminal and an evaluation system. The mobile emergency broadcasting system comprises: the mobile emergency broadcasting system comprises a mobile power supply system, a mobile production broadcasting system, a mobile emergency broadcasting signal generating system, a field sound amplifying system, a mobile transmission and transmitting system, an emergency communication system and the like, and can quickly reach a designated area after a major emergency occurs, so that mobile emergency broadcasting such as field production broadcasting, transmitting, sound amplifying, emergency communication and the like can be realized.

The circuit board in the emergent broadcast transmitter of present maneuvering all is fixed in on quick-witted incasement portion's lateral wall, leads to quick-witted case volume great, can only transport through on-vehicle mode, but, when meetting the special area that the vehicle is inconvenient to arrive, hardly transports emergent broadcast transmitter to appointed region fast.

With respect to the related art described above, the inventors consider that there is a drawback of inconvenient portability.

SUMMERY OF THE UTILITY MODEL

In order to reduce the volume of emergent broadcast transmitter, make things convenient for the staff to carry, this application provides a portable emergent broadcast transmitter.

The application provides a portable emergency broadcast transmitter adopts following technical scheme:

a portable emergency broadcast transmitter comprises a case, a plurality of circuit boards arranged in the case and a radio frequency power amplifier module arranged in the case, wherein the case is a rectangular box body and comprises a top plate, a bottom plate, a front plate, a rear plate and two side plates;

the top plate in the case is fixedly connected with a mounting partition plate, and the circuit boards are respectively and oppositely fixed on two side surfaces of the mounting partition plate.

Through adopting above-mentioned technical scheme, the quick-witted incasement sets up the installation baffle, and on a plurality of circuit boards all were fixed in the installation baffle, reduced the occupation space of circuit board, effectively reduced the volume size of quick-witted case, and then made things convenient for the staff to carry.

Preferably, the installation partition plate is respectively and fixedly connected with the top plate and the two side plates inside the case.

Through adopting above-mentioned technical scheme, installation baffle and the equal fixed connection of the adjacent three lateral walls of quick-witted case inside have effectively strengthened quick-witted case self intensity and stability.

Preferably, a plurality of air holes are formed in the mounting partition plate.

Through adopting above-mentioned technical scheme, set up a plurality of bleeder vents on the installation baffle, make things convenient for the steam that the circuit board distributed to freely diffuse, improve quick-witted incasement portion heat distribution's homogeneity, and then improve quick-witted case lateral wall's radiating efficiency.

Preferably, the radio frequency power amplifier module is fixed on the back plate, and the radio frequency power amplifier module is arranged close to the surface of the back plate.

Through adopting above-mentioned technical scheme, the radio frequency power amplifier module is hugged closely the backplate surface and is set up, makes things convenient for radio frequency power amplifier module to the backplate heat transfer, has improved radio frequency power amplifier module's radiating efficiency.

Preferably, a power supply chamber is arranged at the bottom of the case, and a lithium battery box is placed in the power supply chamber;

a mounting opening is formed in the position, corresponding to the power supply chamber, of one side plate, and a protective door is hinged to the mounting opening;

and a locking mechanism is arranged on the bottom plate at the corresponding position of the protective door.

By adopting the technical scheme, the power supply chamber is arranged in the case, so that the emergency broadcast transmitter can be conveniently used under the emergency condition without an external power supply, and the cruising ability is greatly improved.

Preferably, the locking mechanism comprises a clamping piece fixedly connected with the protective door; the locking mechanism also comprises an elastic card fixed on the bottom plate; when the clamping piece is clamped on the elastic clamp, the protective door and the case are relatively fixed.

By adopting the technical scheme, the protective door and the case are relatively fixed in a clamping manner, the structure is simple and practical, and the use of workers is facilitated.

Preferably, a positioning device for fixing the lithium battery box is arranged in the power supply chamber.

Through adopting above-mentioned technical scheme, set up positioner in the power supply room and be fixed in quick-witted case with the lithium cell case on, prevent that the lithium cell case from freely rocking and taking place the potential safety hazard.

Preferably, the positioning device comprises a fixed clamping plate and a movable clamping plate; the fixed clamping plate is fixed on the rear plate;

the side plate which is not provided with the mounting opening is provided with a guide groove, and the length direction of the guide groove is arranged along the width direction of the case; the movable clamping plate is connected with the guide groove in a sliding manner;

a threaded rod is connected to the front plate in a threaded manner, and the axis direction of the threaded rod is parallel to the length direction of the guide groove; the threaded rod is rotationally connected with the movable clamping plate;

when the threaded rod rotates relatively, the threaded rod drives the movable clamping plate to reciprocate along the direction of the guide groove so as to adjust the distance between the fixed clamping plate and the movable clamping plate.

Through adopting above-mentioned technical scheme, the threaded rod rotates relatively, and the threaded rod drives movable clamping plate along guide way direction reciprocating motion, and then the distance between adjustment and the fixed clamping plate, has both realized fixing the lithium cell case, and the convenience is fixed the lithium cell case without the model size again, has improved the practicality.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the installation partition plate is arranged in the case, and the circuit boards are all fixed on the installation partition plate, so that the occupied space of the circuit boards is reduced, the size of the case is effectively reduced, and the case is convenient for workers to carry;

2. the installation partition plate is provided with a plurality of air holes, so that hot air emitted by the circuit board can be conveniently diffused freely, the uniformity of heat distribution in the case is improved, and the heat dissipation efficiency of the side wall of the case is further improved;

3. the power supply chamber is arranged in the case, so that the emergency broadcast transmitter can be conveniently used under the emergency condition without an external power supply, and the cruising ability is greatly improved.

Drawings

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present application.

Fig. 2 is a schematic cross-sectional structure diagram of a first embodiment of the present application.

Fig. 3 is a schematic cross-sectional view showing a locking mechanism according to an embodiment of the present application.

Fig. 4 is a schematic cross-sectional view illustrating an inside of a chassis according to a second embodiment of the present application.

Description of reference numerals: 1. a chassis; 11. a top plate; 12. a base plate; 121. a containing groove; 13. a front plate; 14. a back plate; 15. a side plate; 151. a guide groove; 21. a circuit board; 22. a radio frequency power amplifier module; 23. a lithium battery case; 24. a protective door; 3. installing a partition plate; 31. air holes are formed; 4. a locking mechanism; 41. a clamping piece; 411. a connecting plate; 412. a connecting rod; 42. an elastic card; 421. an arc-shaped elastic plate; 5. a positioning device; 51. fixing the clamping plate; 52. a movable clamping plate; 53. an adjustment assembly; 531. a threaded hole; 532. a threaded rod; 6. and (7) a rubber pad.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a portable emergency broadcast transmitter.

Example one

With reference to fig. 1 and 2, a portable emergency broadcast transmitter includes a case 1, the case 1 is a rectangular hollow box, the inside of the case 1 is divided into an upper part and a lower part, a component chamber is located on the upper part of the case 1, and a power supply chamber is located on the lower part of the case 1. A plurality of circuit boards 21 are arranged in the component chamber, and the circuit boards 21 are respectively an audio power amplifier board, a multi-input modulation board and a modulation main board; and a radio frequency power amplifier module 22 is also arranged in the component chamber. A lithium battery box 23 is provided in the power supply room.

Referring to fig. 2, the cabinet 1 includes a top plate 11, a bottom plate 12, a front plate 13, a rear plate 14, and two side plates 15. The component chamber is provided with mounting partitions 3, and the mounting partitions 3 are used for mounting and fixing a plurality of circuit boards 21. The installation partition plate 3 is a rectangular plate, one end of the installation partition plate 3 in the width direction is fixedly connected with the top plate 11, and two ends of the installation partition plate 3 in the length direction are fixedly connected with the two side plates 15 respectively. The plurality of circuit boards 21 are fixedly attached to both side surfaces of the mounting spacer 3, respectively.

In order to make the heat distribution at each position in the case 1 more uniform, the heat dissipation efficiency of the side wall of the case 1 is improved. A plurality of air holes 31 are formed in the mounting partition plate 3, and the air holes 31 penetrate through two ends of the mounting partition plate 3 in the thickness direction. The hot air that distributes out in the circuit board 21 of installation baffle 3 both sides can freely remove through bleeder vent 31, avoids installation baffle 3 to obstruct the free diffusion of hot air, and then the heat distribution of the installation baffle 3 both sides that leads to is inhomogeneous.

The radio frequency power amplifier module 22 is installed on the rear plate 14 in the component chamber, and the end with the largest area of the radio frequency power amplifier module 22 is tightly attached to the rear plate 14, so that the radio frequency power amplifier module 22 can conveniently transfer heat to the rear plate 14, and the heat dissipation efficiency of the radio frequency power amplifier module 22 is improved.

With reference to fig. 1 and 3, a mounting opening is formed at a position corresponding to the power supply chamber at the bottom of one side plate 15, a protective door 24 is hinged on the side plate 15 provided with the mounting opening, a hinged end of the protective door 24 is located right above the mounting opening, and an axis direction of the hinged end of the protective door 24 is arranged along a horizontal direction. A locking mechanism 4 is arranged between the protective door 24 and the bottom plate 12. Locking mechanism 4 is including being fixed in guard gate 24 towards the joint spare 41 of bottom plate 12 one end, and joint spare 41 includes the connecting plate 411 with guard gate 24 fixed connection, and connecting plate 411 deviates from guard gate 24's one end fixedly connected with connecting rod 412, and connecting rod 412 is the circular pole, and the axis direction of connecting rod 412 is parallel and guard gate 24's articulated shaft direction setting. A containing groove 121 is formed in the bottom plate 12 at a position corresponding to the clamping piece 41; the locking mechanism 4 further includes an elastic clip 42 fixed in the accommodating groove 121, the elastic clip 42 includes two arc-shaped elastic plates 421, the two arc-shaped elastic plates 421 are respectively fixed at two ends of the accommodating groove 121 in the height direction, and the arc surfaces of the two arc-shaped elastic plates 421 are arranged oppositely.

After the protective door 24 is closed, the connecting rod 412 passes through the two arc-shaped elastic plates 421 and extends into the accommodating groove 121, at this time, the arc surfaces of the two arc-shaped elastic plates 421 are respectively pressed against the two ends of the connecting plate 411, and the connecting rod 412 is clamped at the flaring positions formed by the two arc-shaped elastic plates 421 to limit the connecting rod 412 to be separated from the accommodating groove 121, so that the protective door 24 is fixed.

The implementation principle of the above embodiment is as follows:

set up installation baffle 3 in the machine case 1, a plurality of circuit boards 21 are fixed in the both sides of installation baffle 3 respectively, have reduced circuit board 21's occupation space, have effectively reduced machine case 1's volume size, have made things convenient for staff's carrying. The installation partition plate 3 and the adjacent three lateral walls inside the case 1 are fixedly connected, so that the strength and stability of the case 1 are effectively enhanced, a plurality of air holes 31 are formed in the installation partition plate 3, the uniformity of heat inside the case 1 is improved, and the heat dissipation efficiency is increased.

Example two

Referring to fig. 4, a portable emergency broadcasting transmitter is different from embodiment 1 in that a positioning device 5 for fixing a lithium battery case 23 is provided in a power supply room. The positioning device 5 comprises a fixed clamping plate 51 and a movable clamping plate 52; the fixed holding plate 51 is fixed to the rear plate 14, the movable holding plate 52 is provided on the front plate 13, and the fixed holding plate 51 is disposed opposite to the movable holding plate 52. The movable clamping plate 52 is fixedly connected with a guide block facing the side plate 15 without the installation opening, a guide groove 151 is arranged at a position corresponding to the guide block on the side plate 15 without the installation opening, the length direction of the guide groove 151 is arranged along the width direction of the case 1, and the guide block is connected with the guide groove 151 in a sliding manner.

The positioning device 5 further comprises an adjusting component 53 for driving the movable clamping plate 52 to reciprocate along the direction of the guide groove 151, the adjusting component 53 comprises a threaded hole 531 arranged on the front plate 13, the threaded hole 531 is positioned at one end of the front plate 13 close to the mounting opening, and the axial direction of the threaded hole 531 is arranged along the width direction of the case 1; the adjustment assembly 53 further includes a threaded rod 532 threadably engaged with the threaded aperture 531, the threaded rod 532 being rotatably coupled to the movable clamping plate 52.

Relative rotation threaded rod 532, threaded rod 532 drive activity grip block 52 along guide way 151 direction reciprocating motion, and then the adjustment and fixed distance between the grip block 51, both realized fixing lithium cell box 23, conveniently fix lithium cell box 23 without the model size again, improved the practicality.

In order to prevent the lithium battery box 23 from being damaged when the lithium battery box 23 is clamped and fixed by the positioning device 5, the rubber pad 6 is fixedly connected to one end of the fixed clamping plate 51 opposite to the movable clamping plate 52, and a plurality of strip-shaped saw teeth are formed in the rubber pad 6. Rubber pad 6 had both played the effect of buffer protection lithium cell case 23, had increased frictional force moreover, had further heightened lithium cell case 23's stability.

The implementation principle of the above embodiment is as follows:

put into the power supply room with lithium battery box 23 along the installing port, towards fixed grip block 51 direction rotation threaded rod 532, threaded rod 532 drives movable grip block 52 and removes along the fixed grip block 51 direction of guide way 151 direction orientation, stall when lithium battery box 23's both sides respectively with fixed grip block 51 and the last 6 in close contact with of rubber pad of movable grip block 52, lithium battery box 23 is stably fixed in the power supply room this moment, greatly increased lithium battery box 23's stability.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a portable emergent broadcast transmitter, includes quick-witted case (1), set up in a plurality of circuit boards (21) in quick-witted case (1) and set up in radio frequency power amplifier module (22) in quick-witted case (1), its characterized in that: the case (1) is a rectangular case body and comprises a top plate (11), a bottom plate (12), a front plate (13), a rear plate (14) and two side plates (15);

the top plate (11) in the case (1) is fixedly connected with a mounting partition plate (3), and the circuit boards (21) are respectively and oppositely fixed on two side surfaces of the mounting partition plate (3).

2. The portable emergency broadcast transmitter of claim 1, wherein: the mounting partition plate (3) is respectively and fixedly connected with a top plate (11) and two side plates (15) in the case (1).

3. The portable emergency broadcast transmitter of claim 1, wherein: the mounting clapboard (3) is provided with a plurality of air holes (31).

4. The portable emergency broadcast transmitter of claim 1, wherein: the radio frequency power amplifier module (22) is fixed on the back plate (14), and the radio frequency power amplifier module (22) is arranged close to the surface of the back plate (14).

5. The portable emergency broadcast transmitter of claim 1, wherein: a power supply chamber is arranged at the bottom of the case (1), and a lithium battery box (23) is placed in the power supply chamber;

a mounting opening is formed in the position, corresponding to the power supply chamber, of one side plate (15), and a protective door (24) is hinged to the mounting opening;

and the protective door (24) and the bottom plate (12) at the corresponding position are provided with locking mechanisms (4).

6. The portable emergency broadcast transmitter of claim 5, wherein: the locking mechanism (4) comprises a clamping piece (41) fixedly connected with the protective door (24); the locking mechanism (4) further comprises an elastic card (42) fixed on the bottom plate (12); when the clamping piece (41) is clamped on the elastic clamp (42), the protective door (24) is relatively fixed with the case (1).

7. The portable emergency broadcast transmitter of claim 5, wherein: and a positioning device (5) for fixing the lithium battery box (23) is arranged in the power supply chamber.

8. The portable emergency broadcast transmitter of claim 7, wherein: the positioning device (5) comprises a fixed clamping plate (51) and a movable clamping plate (52); the fixed clamping plate (51) is fixed on the back plate (14);

the side plate (15) which is not provided with the mounting opening is provided with a guide groove (151), and the length direction of the guide groove (151) is arranged along the width direction of the case (1); the movable clamping plate (52) is connected with the guide groove (151) in a sliding manner;

a threaded rod (532) is connected to the front plate (13) in a threaded manner, and the axis direction of the threaded rod (532) is parallel to the length direction of the guide groove (151); the threaded rod (532) is rotationally connected with the movable clamping plate (52);

when the threaded rod (532) is rotated relatively, the threaded rod (532) drives the movable clamping plate (52) to reciprocate along the direction of the guide groove (151) so as to adjust the distance between the fixed clamping plate (51) and the movable clamping plate (52).