CN216905757U - High-power amplifier for digital television transmitter - Google Patents
High-power amplifier for digital television transmitter Download PDFInfo
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- CN216905757U CN216905757U CN202123444628.5U CN202123444628U CN216905757U CN 216905757 U CN216905757 U CN 216905757U CN 202123444628 U CN202123444628 U CN 202123444628U CN 216905757 U CN216905757 U CN 216905757U
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- amplifier main
- digital television
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Abstract
The utility model relates to a high-power amplifier for a digital television transmitter, which comprises an amplifier main body, wherein a box cover is clamped on the upper surface of the amplifier main body, two fixing rings are connected to the front side of the amplifier main body, a connecting block is arranged on one side inside the two fixing rings, a fan blade is connected to one side, facing the inside of the fixing rings, of the connecting block, a first filter screen is arranged on the other side, away from the connecting block, of the fixing rings, a second filter screen is connected to the rear side of the amplifier main body, a fixing block is arranged inside the amplifier main body, a bolt is connected to the inside of the fixing block, one end, away from the fixing block, of the bolt penetrates through the inner top wall of the second filter screen, two sliding grooves are respectively formed in two sides of the amplifier main body, and limiting holes are formed in the sliding grooves. The amplifier can clean the dust inside without being disassembled completely, and the amplifier can be conveniently moved by disassembling and assembling the handle, so that the amplifier is prevented from falling accidentally.
Description
Technical Field
The utility model relates to a high-power amplifier for a digital television transmitter.
Background
In all-solid-state digital television transmitters, a power amplifier is a core component of the transmitter and is used for signal amplification. In the prior art, a power amplifier usually adopts a common class AB amplifier, so that the efficiency of a digital television transmitter is very low, and the efficiency of the digital television transmitter is generally about 18%. Most of the power level of the existing digital transmitter is more than 1KW, so that the total dissipated power of one digital 1KW transmitter is more than 5 KW;
at present, most of amplifiers are used for a long time, a lot of dust can be accumulated at an air outlet and an air inlet, the amplifiers are very inconvenient to disassemble and clean, housings of most of amplifiers are all made of metal, the surfaces of the metal are smooth, the amplifiers are easy to drop when the amplifiers are carried, and the amplifiers are broken, so that the high-power amplifier for the digital television transmitter is provided.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
To solve the above problems of the prior art, the present invention provides a high power amplifier for a digital television transmitter.
(II) technical scheme
In order to achieve the above object, the present invention adopts a main technical solution relating to a high power amplifier for a digital television transmitter, comprising:
the improved amplifier comprises an amplifier main body, wherein a box cover is clamped on the upper surface of the amplifier main body, two fixing rings are detachably arranged on the front side of the amplifier main body, a connecting block is arranged on one side inside each fixing ring, a fan blade is connected to one side, facing the inside of each fixing ring, of each connecting block, a first filter screen is arranged on the other side, far away from the connecting blocks, of each fixing ring, and a second filter screen is connected to the back side, opposite to the fixing rings, of the amplifier main body;
the spout has all been seted up to two lateral walls of amplifier main part, and the inside of spout has all seted up spacing hole.
Preferably, the amplifier main part internally mounted has the fixed block, and the internal connection of fixed block has the bolt, the one end that the fixed block was kept away from to the bolt runs through the interior roof of second filter screen.
Preferably, the inside of two spouts all is connected with the slider, and the surface and the spout inner wall of slider laminate mutually, the slider is kept away from one side of spout and is connected with the handle.
Preferably, the inner wall of the handle is attached to the outer surface of the amplifier main body, and the limiting rod is inserted into the handle.
Preferably, both ends of the limiting rod respectively penetrate through both sides of the handle, and one end of the limiting rod penetrates through the outer surface of the sliding block and is inserted into the limiting hole.
Preferably, the round block is installed at one end, away from the sliding block, of the limiting rod, the elastic part is movably sleeved on the outer surface of the limiting rod, and the two ends of the elastic part are installed on one side of the handle and one side of the round block respectively.
(III) advantageous effects
The utility model has the beneficial effects that: the fan blades rotate to generate wind power, so that the interior of the amplifier main body can be cooled, the arranged first filter screen can be blocked by dust driven by wind inflow, the fixing ring can be detached and is convenient to clean, and the second filter screen can also be detached and cleaned; and the handle that sets up can be dismantled the installation, can install when removing, is convenient for remove, prevents that the accident from dropping, can dismantle when not using, does not hinder the use.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the amplifier of the present invention;
FIG. 3 is a schematic view of a fixed ring structure of the present invention;
FIG. 4 is a schematic view of a second filter screen according to the present invention;
fig. 5 is a schematic view of the structure of the handle of the present invention.
[ description of reference ]
1. An amplifier main body;
101. a box cover;
102. a fixing ring;
103. connecting blocks;
104. a fan blade;
105. a first filter screen;
106. a second filter screen;
107. a fixed block;
108. a bolt;
2. a chute;
201. a limiting hole;
202. a slider;
203. a handle;
204. a limiting rod;
205. an elastic member;
206. a circular block.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
The embodiment of the utility model discloses a high-power amplifier for a digital television transmitter
As shown in fig. 1, 4 and 3, in the amplifier main body 1, a case cover 101 is clamped on the upper surface of the amplifier main body 1, two fixing rings 102 are connected to the front side of the amplifier main body 1 in a threaded manner, a connecting block 103 is fixedly connected to one side inside the two fixing rings 102, a fan blade 104 is rotatably connected to one side of the connecting block 103 facing the inside of the fixing rings 102, a first filter screen 105 is fixedly connected to the other side of the fixing rings 102 far away from the connecting block 103, and a second filter screen 106 is movably connected to the rear side of the amplifier main body 1 opposite to the fixing rings 102;
the two sides of the amplifier main body 1 are provided with sliding chutes 2, and the insides of the sliding chutes 2 are provided with limiting holes 201;
a fixing block 107 is fixedly connected inside the amplifier main body 1, a bolt 108 is connected to the inner thread of the fixing block 107, and one end, far away from the fixing block 107, of the bolt 108 penetrates through the inner top wall of the second filter screen 106;
rotate through flabellum 104 and can produce wind-force to can cool down the inside of amplifier main part 1, and the dust that drives when the first filter screen 105 that sets up can intake blocks down, and solid fixed ring 102 can be dismantled, be convenient for wash, second filter screen 106 also can be dismantled and wash, be convenient for concentrate the inside dust of amplifier, and the handle 203 that sets up can dismantle the installation, can install when removing, be convenient for remove, prevent unexpected dropping, can dismantle when not, do not hinder the use.
As shown in fig. 2 and 5, the sliding blocks 202 are slidably connected inside the two sliding grooves 2, the outer surfaces of the sliding blocks 202 are attached to the inner walls of the sliding grooves 2, and the side of the sliding blocks 202 away from the sliding grooves 2 is rotatably connected with a handle 203;
the inner wall of the handle 203 is attached to the outer surface of the amplifier main body 1, a limiting rod 204 is movably inserted into the handle 203, two ends of the limiting rod 204 respectively penetrate through two sides of the handle 203, and one end of the limiting rod 204 penetrates through the outer surface of the sliding block 202 and is inserted into the limiting hole 201;
one end of the limit rod 204, which is far away from the slide block 202, is fixedly connected with a circular block 206, the outer surface of the limit rod 204 is movably sleeved with an elastic piece 205, and two ends of the elastic piece 205 are respectively and fixedly connected with one side of the handle 203 and one side of the circular block 206;
through pulling circular block 206, circular block 206 removes and drives gag lever post 204 and remove to tensile elastic component 205 makes gag lever post 204 enter into the inside of slider 202, then with slider 202 sliding connection inside spout 2, when moving 2 tops of spout, unclamp circular block 206, elastic component 205 bounce-back makes gag lever post 204 remove, and plug in the inside at spacing hole 201, thereby can fix handle 203 in spout 2, be convenient for remove amplifier main part 1.
The working principle is as follows: when the high-power amplifier for the digital television transmitter is used, firstly, the fan blades 104 rotate to generate wind power to bring external cold air into the amplifier main body 1, then hot air in the amplifier main body 1 is discharged from the second filter screen 106, external dust is brought into the amplifier main body 1 while the fan blades 104 rotate to generate wind power, and the dust is taken down through the first filter screen 105;
the fan blade 104 and the first filter screen 105 can be detached by rotating the fixing ring 102, so that dust filtered inside can be conveniently cleaned, the wind power generated by the rotation of the fan blade 104 can blow the dust inside the amplifier main body 1 to the second filter screen 106, so that the dust can be conveniently collected, and the bolt 108 can be rotated to detach the second filter screen 106, so that the cleaning is convenient;
then the circular block 206 is pulled, the circular block 206 moves to drive the limiting rod 204 to move, the elastic piece 205 is stretched to enable the limiting rod 204 to enter the inside of the sliding block 202, then the sliding block 202 is connected inside the sliding groove 2 in a sliding mode, when the sliding block moves to the top end of the sliding groove 2, the circular block 206 is loosened, the elastic piece 205 rebounds to enable the limiting rod 204 to move and is inserted into the limiting hole 201, therefore, the handle 203 can be fixed in the sliding groove 2, the amplifier main body 1 is convenient to move, the amplifier main body 1 is kept away from the amplifier main body 1 in the same way after the movement is finished, the circular block 206 is pulled to drive the limiting rod 204 to move, the limiting rod 204 is separated from the limiting groove, and the sliding block 202 can be moved, therefore, the handle 203 can be detached, and the installation and the use of the amplifier main body 1 cannot be hindered;
the rotation of the fan blades 104 can generate wind power, so that the interior of the amplifier main body 1 can be cooled, dust driven by the arranged first filter screen 105 during air inflow can be blocked, the fixing ring 102 can be detached and cleaned conveniently, the second filter screen 106 can also be detached and cleaned conveniently, dust in the amplifier can be concentrated, the arranged handle 203 can be detached and installed, the amplifier can be installed during movement and is convenient to move, accidental falling is prevented, and the amplifier can be detached and used without interference;
through pulling circular block 206, circular block 206 removes and drives gag lever post 204 and remove to tensile elastic component 205 makes gag lever post 204 enter into the inside of slider 202, then with slider 202 sliding connection inside spout 2, when removing spout 2 top, loosens circular block 206, and elastic component 205 bounce-back makes gag lever post 204 remove, and the plug-in is in the inside of spacing hole 201, thereby can fix handle 203 in spout 2, is convenient for remove amplifier main part 1.
Claims (6)
1. A high power amplifier for a digital television transmitter, comprising;
the amplifier comprises an amplifier main body (1), wherein a box cover (101) is connected to the upper surface of the amplifier main body (1) in a clamping mode, two fixing rings (102) are detachably arranged on the front side of the amplifier main body (1), a connecting block (103) is installed on one side inside the two fixing rings (102), one side, facing the inside of the fixing rings (102), of the connecting block (103) is connected with fan blades (104), a first filter screen (105) is installed on the other side, far away from the connecting block (103), of the fixing rings (102), and a second filter screen (106) is connected to the rear side, opposite to the fixing rings (102), of the amplifier main body (1);
the two side walls of the amplifier main body (1) are provided with sliding grooves (2), and the inside of each sliding groove (2) is provided with a limiting hole (201).
2. A high power amplifier for a digital television transmitter as defined in claim 1, wherein: the amplifier comprises an amplifier main body (1), wherein a fixing block (107) is arranged inside the amplifier main body (1), a bolt (108) is connected inside the fixing block (107), and one end, far away from the fixing block (107), of the bolt (108) penetrates through the inner top wall of a second filter screen (106).
3. A high power amplifier for a digital television transmitter as claimed in claim 1, characterized in that: two the inside of spout (2) all is connected with slider (202), and the surface and the laminating of spout (2) inner wall of slider (202) mutually, one side that spout (2) were kept away from in slider (202) is connected with handle (203).
4. A high power amplifier for a digital television transmitter as defined in claim 3, wherein: the inner wall of the handle (203) is attached to the outer surface of the amplifier main body (1), and a limiting rod (204) is inserted into the handle (203).
5. A high power amplifier for a digital television transmitter as claimed in claim 4, characterized in that: two ends of the limiting rod (204) penetrate through two sides of the handle (203) respectively, and one end of the limiting rod (204) penetrates through the outer surface of the sliding block (202) and is inserted into the limiting hole (201).
6. A high power amplifier for a digital television transmitter as claimed in claim 5, characterized in that: the one end that slider (202) was kept away from in gag lever post (204) is installed circular block (206), and the surface activity of gag lever post (204) is cup jointed elastic component (205), the both ends of elastic component (205) are installed respectively in one side of handle (203) and one side of circular block (206).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123444628.5U CN216905757U (en) | 2021-12-31 | 2021-12-31 | High-power amplifier for digital television transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123444628.5U CN216905757U (en) | 2021-12-31 | 2021-12-31 | High-power amplifier for digital television transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216905757U true CN216905757U (en) | 2022-07-05 |
Family
ID=82211182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123444628.5U Active CN216905757U (en) | 2021-12-31 | 2021-12-31 | High-power amplifier for digital television transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216905757U (en) |
-
2021
- 2021-12-31 CN CN202123444628.5U patent/CN216905757U/en active Active
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