CN210609949U - Video signal generator - Google Patents
Video signal generator Download PDFInfo
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- CN210609949U CN210609949U CN201920532541.7U CN201920532541U CN210609949U CN 210609949 U CN210609949 U CN 210609949U CN 201920532541 U CN201920532541 U CN 201920532541U CN 210609949 U CN210609949 U CN 210609949U
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- generator
- top cover
- dustproof
- bottom box
- top cap
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Abstract
The utility model relates to a video signal generator, including generator top cap, top cap thermovent, top cap connector, the bottom box of generator, dustproof heat abstractor, rearmounted connector, video display unit, regulation and control panel, the generator top cap includes three faces altogether, top surface and two sides, sets up the top cap thermovent on two sides of generator top cap, and all is provided with the top cap connector on three faces of generator top cap, and the generator top cap is connected through the bottom box of top cap connector and generator, the bottom box of generator is preceding to be set up video display unit and regulation and control panel, and the bottom box of generator back sets up rearmounted connector, has solved current video signal generator and has received the influence of environment easily, and makes the sensitivity of instrument go wrong, has prolonged the life of instrument, should use widely.
Description
Technical Field
The utility model relates to a signal generator field especially relates to a video signal generator.
Background
A video signal generator is a type of signal generator, which is a device that can provide electrical signals of various frequencies, waveforms, and output levels. When measuring the amplitude characteristic, frequency characteristic, transmission characteristic and other electrical parameters of various telecommunication systems or telecommunication equipment, and measuring the characteristics and parameters of components, the signal generator is used as a signal source or an excitation source for testing, and is also called a signal source or an oscillator, and has wide application in production practice and technical fields. Various wave curves can be expressed by trigonometric functions. Circuits capable of generating various waveforms, such as triangular, sawtooth, rectangular, square, and sine, are called function signal generators, which modulate a signal source. In addition, it can provide an alternating signal voltage when calibrating the electronic voltmeter. Principle of low frequency signal generator: the system comprises a master oscillator stage, a master oscillator output regulation potentiometer, a voltage amplifier, an output attenuator, a power amplifier, an impedance converter and an indication voltmeter. However, the existing video signal generator is easily affected by the environment, so that the sensitivity of the instrument is problematic, and thus improvement is required.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a video signal generator to solve above-mentioned technical problem, for realizing above-mentioned purpose the utility model discloses a following technical scheme:
a video signal generator comprises a generator top cover, a top cover heat dissipation port, a top cover connection port, a generator bottom box, a dustproof heat dissipation device, a rear connection port, a video display and a regulation panel, wherein the generator top cover comprises three faces, a top face and two side faces, the two side faces of the generator top cover are provided with the top cover heat dissipation ports, the three faces of the generator top cover are provided with the top cover connection ports, the generator top cover is connected with the generator bottom box through the top cover connection ports, the front face of the generator bottom box is provided with the video display and the regulation panel, the back face of the generator bottom box is provided with the rear connection port, the left side face and the right side face of the generator bottom box are provided with the dustproof heat dissipation device, the dustproof heat dissipation device comprises a dustproof net rack, a radiator fixing rack, a connecting shaft and fan blades, the dustproof net rack is rectangular, the dustproof net rack is internally fixed, the radiator fixing frame is fixed on one side face of the dustproof net rack through bolts, a connecting shaft is arranged at the center of the radiator fixing frame, and fan blades are arranged on the connecting shaft.
On the basis of the technical scheme, the two side faces of the generator bottom box are provided with the dustproof heat dissipation devices, and the rotation directions of the connecting shafts in the dustproof heat dissipation devices are consistent.
On the basis of the technical scheme, the dustproof heat dissipation devices on the two side faces of the generator bottom box are placed in different directions, the left side of the dustproof heat dissipation devices is placed in a positive mode, and the right side of the dustproof heat dissipation devices is placed in a reverse mode.
Compared with the prior art, the utility model has the advantages of it is following: the utility model relates to a rationally, solved current video signal generator and received the influence of environment easily, and make the sensitivity of instrument go wrong, prolonged the life of instrument, both solved video signal generator's heat dissipation problem through dustproof heat abstractor, solved dirt-proof problem again for the instrument is more durable, should use widely.
Drawings
Fig. 1 is a schematic view of the whole front of the present invention.
Fig. 2 is a schematic view of the whole back of the present invention.
Fig. 3 is a schematic view of the present invention.
Fig. 4 is a schematic view of the dustproof heat dissipation device of the present invention.
Fig. 5 is a schematic view of the internal gas flow of the present invention.
In the figure: generator top cap 1, top cap thermovent 2, top cap connector 3, generator end box 4, dustproof heat abstractor 5, rearmounted connector 6, video display 7, regulation and control panel 8, dustproof net rack 9, dust screen 10, radiator mount 11, connecting axle 12, flabellum 13.
Detailed Description
The invention is explained in further detail below with reference to the figures and the embodiments.
A video signal generator comprises a generator top cover 1, a top cover heat dissipation port 2, a top cover connection port 3, a generator bottom box 4, a dustproof heat dissipation device 5, a rear connection port 6, a video display 7 and a regulation and control panel 8, wherein the generator top cover 1 comprises three faces, a top face and two side faces, the top cover heat dissipation port 2 is arranged on the two side faces of the generator top cover 1, the top cover connection port 3 is arranged on the three faces of the generator top cover 1, the generator top cover 1 is connected with the generator bottom box 4 through the top cover connection port 3, the video display 7 and the regulation and control panel 8 are arranged on the front face of the generator bottom box 4, the rear connection port 6 is arranged on the back face of the generator bottom box 4, the dustproof heat dissipation device 5 is arranged on the left side face and the right side face of the generator bottom box 4, and the dustproof heat dissipation device 5 comprises a dustproof net rack 9, a dustproof net 10, Flabellum 13, dustproof rack 9 is the rectangle, dustproof rack 9 internal fixation dust screen 10, dustproof rack 9 both sides card in the generator end box 4, radiator mount 11 sets up a connecting axle 12 through the bolt fastening on dustproof rack 9 a side, radiator mount 11 center, is provided with flabellum 13 on the connecting axle 12.
Two side surfaces of the generator bottom box 4 are provided with dustproof heat dissipation devices 5, and the rotation directions of connecting shafts 12 in the dustproof heat dissipation devices 5 are consistent.
The dustproof heat dissipation devices 5 on the two side faces of the generator bottom box 4 are placed in different directions, the left side of the generator bottom box is placed in a positive mode, and the right side of the generator bottom box is placed in a reverse mode.
The utility model discloses the theory of operation: the utility model discloses a top cap thermovent and dustproof heat abstractor on the generator top cap dispels the heat to video signal generator inside, and the dustproof heat abstractor at both ends accelerates inside air flow, and the dust screen that dustproof heat abstractor set up can a large amount of filtration dust, makes the continuous operation that video signal generator can be long-time, very big improvement the performance of instrument.
The foregoing is a preferred embodiment of the present invention, and for those skilled in the art to understand the teaching of the present invention, the changes, modifications, replacements and variations to the embodiments will still fall within the protection scope of the present invention without departing from the principle and spirit of the present invention.
Claims (3)
1. A video signal generator is characterized by comprising a generator top cover (1), a top cover heat dissipation port (2), a top cover connection port (3), a generator bottom box (4), a dustproof heat dissipation device (5), a rear connection port (6), a video display unit (7) and a regulation and control panel (8), wherein the generator top cover (1) comprises three surfaces, a top surface and two side surfaces, the top cover heat dissipation port (2) is arranged on the two side surfaces of the generator top cover (1), the top cover connection port (3) is arranged on the three surfaces of the generator top cover (1), the generator top cover (1) is connected with the generator bottom box (4) through the top cover connection port (3), the video display unit (7) and the regulation and control panel (8) are arranged in front of the generator bottom box (4), the rear connection port (6) is arranged on the back surface of the generator bottom box (4), the dustproof heat dissipation device (5) is arranged on the left side surface and the right side surface of the generator bottom box, dustproof heat abstractor (5) are including dustproof rack (9), dust screen (10), radiator mount (11), connecting axle (12), flabellum (13), dustproof rack (9) are the rectangle, dustproof rack (9) internal fixation dust screen (10), and dustproof rack (9) both sides card is in box (4) at the bottom of the generator, radiator mount (11) are fixed in on dustproof rack (9) a side through the bolt, and radiator mount (11) center sets up connecting axle (12), is provided with flabellum (13) on connecting axle (12).
2. A generator according to claim 1, wherein both sides of the generator bottom case (4) are provided with dustproof heat sinks (5), and the rotation directions of the connecting shafts (12) in the dustproof heat sinks (5) are the same.
3. A generator according to claim 2, wherein the dustproof heat sinks (5) are placed in different directions on the two sides of the generator bottom case (4), with the left side placed right and the right side placed left.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920532541.7U CN210609949U (en) | 2019-04-19 | 2019-04-19 | Video signal generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920532541.7U CN210609949U (en) | 2019-04-19 | 2019-04-19 | Video signal generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210609949U true CN210609949U (en) | 2020-05-22 |
Family
ID=70688303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920532541.7U Active CN210609949U (en) | 2019-04-19 | 2019-04-19 | Video signal generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210609949U (en) |
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2019
- 2019-04-19 CN CN201920532541.7U patent/CN210609949U/en active Active
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