CN214102193U

CN214102193U - Detection protection device of LNB power supply circuit

Info

Publication number: CN214102193U
Application number: CN202120225836.7U
Authority: CN
Inventors: 周福荣; 王洪; 李�诚; 杨思黎
Original assignee: Shenzhen Xiang Cheng Electronic Technology Co ltd
Current assignee: Shenzhen Xiang Cheng Electronic Technology Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-08-31
Anticipated expiration: 2031-01-27

Abstract

The utility model discloses a detection protection device of LNB power supply circuit, comprises a box bod, the inner chamber fixedly connected with baffle of box body, the top fixedly connected with telescopic link of baffle, the top fixedly connected with backup pad of telescopic link. The utility model discloses a backup pad, driving motor, the apparatus further comprises a rotating shaft, drive mechanism, the bull stick, the cooperation of first flabellum and second flabellum, through the design backup pad, make the device's source of generating heat be in unsettled state, conveniently dispel the heat to it, driving motor's output shaft drives the bull stick rotation through first bevel gear and second bevel gear, the bull stick drives first flabellum rotatory, it flows downwards to drive the gas on box inner chamber upper portion, it is rotatory that driving motor's output shaft drives the second flabellum through the pivot simultaneously, it flows to the left side to drive gas, make it discharge the external world through the louvre, the radiating efficiency is high, thereby improve the radiating effect, the poor problem of current device radiating effect has been solved.

Description

Detection protection device of LNB power supply circuit

Technical Field

The utility model relates to a circuit detection technical field specifically is a LNB supply circuit's detection protection device.

Background

A satellite TV set-top box is a device for receiving satellite digital TV signal and converting it into high-quality audio-video signal to be outputted, it is a consumer electronic product which can make user watch satellite TV program on the existing analog TV and make interactive digital entertainment, education and commercial activities, LNB (Lownoseblockdown converter) is a low-frequency down-conversion amplifier, its function is to amplify and frequency-convert the satellite signal transmitted by feed source, change Ku or C wave band signal into L (950 MHz-2150 MHz) wave band, and transmit it to satellite TV set-top box through coaxial cable, in recent years, the price of domestic digital satellite TV receiver is very intense, each manufacturer reduces the cost of product through various ways in order to occupy the market, provides practical and low-price product for consumer, in the course of reducing cost, there are many companies put the eye on LNB power supply circuit, the LNB power supply scheme with lower cost is adopted, but the heat generated by the existing LNB power supply circuit during working is larger, so that the overheating of parts of the satellite set top box power supply part is easily caused, and the danger is generated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a LNB supply circuit's detection protection device possesses the good advantage of radiating effect, has solved the poor problem of current device radiating effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a LNB power supply circuit's detection protection device, comprises a box bod, the inner chamber fixedly connected with baffle of box body, the top fixedly connected with telescopic link of baffle, the top fixedly connected with backup pad of telescopic link, the surface cover of telescopic link is equipped with reset spring, the right side fixedly connected with driving motor of box body inner chamber bottom, driving motor's output shaft fixedly connected with pivot, the fixed surface of pivot is connected with drive mechanism, drive mechanism's axle center fixedly connected with bull stick, the first flabellum of fixed surface of bull stick is connected with, the fixed surface of pivot is connected with the second flabellum, the top of baffle is provided with logical groove, the inner chamber fixedly connected with dust screen that leads to the groove, the left bottom of box body is provided with the louvre.

Preferably, the bottom of the return spring is fixedly connected with the top of the baffle plate, and the top of the return spring is fixedly connected with the bottom of the support plate.

Preferably, one side fixedly connected with stopper of backup pad, the other end sliding connection of stopper has the spout.

Preferably, the transmission mechanism comprises a first bevel gear and a second bevel gear, the surface of the rotating shaft is fixedly connected with the first bevel gear, and the top of the first bevel gear is engaged with the second bevel gear.

Preferably, an active carbon filter screen is arranged in an inner cavity of each heat dissipation hole, each heat dissipation hole is inclined at a certain angle with the horizontal plane, and the inclined angle is between thirty and forty degrees.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a backup pad, driving motor, the apparatus further comprises a rotating shaft, drive mechanism, the bull stick, the cooperation of first flabellum and second flabellum, through the design backup pad, make the device's source of generating heat be in unsettled state, conveniently dispel the heat to it, driving motor's output shaft drives the bull stick rotation through first bevel gear and second bevel gear, the bull stick drives first flabellum rotatory, it flows downwards to drive the gas on box inner chamber upper portion, it is rotatory that driving motor's output shaft drives the second flabellum through the pivot simultaneously, it flows to the left side to drive gas, make it discharge the external world through the louvre, the radiating efficiency is high, thereby improve the radiating effect, the poor problem of current device radiating effect has been solved.

2. The utility model discloses a design reset spring is convenient for cushion the inside electronic component of the device, improves the security of device, and through the cooperation of reset spring and spout, it is spacing to be convenient for carry on the backup pad, through designing the active carbon filter screen, avoids external dust to enter into the inner chamber of box body, prevents simultaneously that external steam from entering into the inner chamber of box body.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

fig. 3 is a left side view of the structure of the present invention.

In the figure: 1. a box body; 2. a baffle plate; 3. a telescopic rod; 4. a support plate; 5. a return spring; 6. a drive motor; 7. a rotating shaft; 8. a transmission mechanism; 81. a first bevel gear; 82. a second bevel gear; 9. a rotating rod; 10. a first fan blade; 11. an activated carbon filter screen; 12. a second fan blade; 13. a through groove; 14. a dust screen; 15. heat dissipation holes; 16. a limiting block; 17. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a detecting and protecting device for an LNB power supply circuit comprises a box body 1, a baffle 2 is fixedly connected to an inner cavity of the box body 1, a telescopic rod 3 is fixedly connected to the top of the baffle 2, a supporting plate 4 is fixedly connected to the top of the telescopic rod 3, a limiting block 16 is fixedly connected to one side of the supporting plate 4, a sliding groove 17 is slidably connected to the other end of the limiting block 16, through designing a reset spring 5, electronic components inside the device can be conveniently buffered, the safety of the device is improved, through matching of the reset spring 5 and the sliding groove 17, the supporting plate 4 can be conveniently limited, through designing an active carbon filter screen 11, external dust is prevented from entering the inner cavity of the box body 1, meanwhile, external water vapor is prevented from entering the inner cavity of the box body 1, the reset spring 5 is sleeved on the surface of the telescopic rod 3, and the bottom of the reset spring 5 is fixedly connected to the top of the baffle 2, the top of the reset spring 5 is fixedly connected with the bottom of the supporting plate 4, the right side of the bottom of the inner cavity of the box body 1 is fixedly connected with a driving motor 6, the output shaft of the driving motor 6 is fixedly connected with a rotating shaft 7, the surface of the rotating shaft 7 is fixedly connected with a transmission mechanism 8, the transmission mechanism 8 comprises a first bevel gear 81 and a second bevel gear 82, the surface of the rotating shaft 7 is fixedly connected with a first bevel gear 81, the top of the first bevel gear 81 is meshed with a second bevel gear 82, the axle center of the transmission mechanism 8 is fixedly connected with a rotating rod 9, the surface of the rotating rod 9 is fixedly connected with a first fan blade 10, the surface of the rotating shaft 7 is fixedly connected with a second fan blade 12, the top of the baffle 2 is provided with a through groove 13, the inner cavity of the through groove 13 is fixedly connected with a dust screen 14, the bottom of the left side of the box body 1 is provided with a radiating hole 15, the inner cavity of the radiating hole 15 is provided with an active carbon filter screen 11, and the radiating hole 15 is inclined with a certain angle with the horizontal plane, and the inclined angle is between thirty and forty degrees, through the support plate 4, the driving motor 6, the rotating shaft 7, the transmission mechanism 8, the rotating rod 9, the cooperation of the first fan blade 10 and the second fan blade 12, through designing the support plate 4, make the device's heat source be in the unsettled state, conveniently dispel the heat to it, the output shaft of the driving motor 6 drives the rotating rod 9 to rotate through the first bevel gear 81 and the second bevel gear 82, the rotating rod 9 drives the first fan blade 10 to rotate, drive the gas on the upper portion of the inner chamber of the box body 1 to flow downwards, simultaneously the output shaft of the driving motor 6 drives the second fan blade 12 to rotate through the rotating shaft 7, drive the gas to flow to the left side, make it discharge to the external world through the louvre 15, the heat dissipation efficiency is high, thereby improve the heat dissipation effect, and solve the problem that the heat dissipation effect of the existing device is poor.

During the use, through design backup pad 4, make the device's the source that generates heat be in unsettled state, conveniently dispel the heat to it, driving motor 6's output shaft drives bull stick 9 through first bevel gear 81 and second bevel gear 82 and rotates, bull stick 9 drives first flabellum 10 rotatory, the gas that drives 1 inner chamber upper portion of box body flows downwards, driving motor 6's output shaft drives second flabellum 12 rotatory through pivot 7 simultaneously, it flows to the left side to drive gas, make it discharge the external world through louvre 15, the radiating efficiency is high, thereby improve the radiating effect.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent. In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A detection protection device of an LNB power supply circuit comprises a box body (1), and is characterized in that: the inner cavity of the box body (1) is fixedly connected with a baffle (2), the top of the baffle (2) is fixedly connected with a telescopic rod (3), the top of the telescopic rod (3) is fixedly connected with a supporting plate (4), the surface of the telescopic rod (3) is sleeved with a reset spring (5), the right side of the bottom of the inner cavity of the box body (1) is fixedly connected with a driving motor (6), an output shaft of the driving motor (6) is fixedly connected with a rotating shaft (7), the surface of the rotating shaft (7) is fixedly connected with a transmission mechanism (8), the axle center of the transmission mechanism (8) is fixedly connected with a rotating rod (9), the surface of the rotating rod (9) is fixedly connected with a first fan blade (10), the surface of the rotating shaft (7) is fixedly connected with a second fan blade (12), the top of the baffle (2) is provided with a through groove (13), and the inner cavity of the through groove (13) is fixedly connected with a dustproof net (14), the bottom of the left side of the box body (1) is provided with a heat dissipation hole (15).

2. A detection protection arrangement for an LNB supply circuit as claimed in claim 1, wherein: the bottom of the reset spring (5) is fixedly connected with the top of the baffle (2), and the top of the reset spring (5) is fixedly connected with the bottom of the support plate (4).

3. A detection protection arrangement for an LNB supply circuit as claimed in claim 1, wherein: one side fixedly connected with stopper (16) of backup pad (4), the other end sliding connection of stopper (16) has spout (17).

4. A detection protection arrangement for an LNB supply circuit as claimed in claim 1, wherein: the transmission mechanism (8) comprises a first bevel gear (81) and a second bevel gear (82), the surface of the rotating shaft (7) is fixedly connected with the first bevel gear (81), and the top of the first bevel gear (81) is meshed with the second bevel gear (82).

5. A detection protection arrangement for an LNB supply circuit as claimed in claim 1, wherein: the inner cavity of the heat dissipation hole (15) is provided with an activated carbon filter screen (11), the heat dissipation hole (15) and the horizontal plane form a certain angle of inclination, and the inclination angle is thirty-forty degrees.