CN219394180U

CN219394180U - Direct current filter convenient to heat dissipation

Info

Publication number: CN219394180U
Application number: CN202320881533.XU
Authority: CN
Inventors: 王明治; 王玉甫
Original assignee: Shenzhen Shengu Electronics Co ltd
Current assignee: Shenzhen Shengu Electronics Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-07-21
Anticipated expiration: 2033-04-11

Abstract

The utility model relates to a direct current filter convenient for heat dissipation, which comprises a shell, wherein ventilation filter screens are arranged on two sides of the interior of the shell, a motor is fixedly connected to the interior of the shell, a first bevel gear is fixedly connected to the output end of the motor, limiting plates are fixedly connected to two sides of the top of the inner wall of the shell, rotating rods are rotatably connected to the interior of the limiting plates, a second bevel gear is fixedly connected to one ends of the two rotating rods, which are close to the first bevel gear, respectively, and a fan is fixedly connected to one ends of the two rotating rods, which are close to the ventilation filter screens, respectively. The utility model has the beneficial effects that the problems that the direct current filter in the prior art dissipates heat of the internal temperature of the filter in a way of forming the heat dissipation holes, but the internal temperature of the filter cannot be rapidly reduced by only the heat dissipation holes, the heat dissipation holes are communicated with the inside of the filter, excessive dust is easily accumulated if the ash is not removed from the heat dissipation holes, and the heat dissipation effect of the filter is further influenced are solved.

Description

Direct current filter convenient to heat dissipation

Technical Field

The utility model relates to the technical field of direct current filters, in particular to a direct current filter convenient for heat dissipation.

Background

A dc filter is a filter that is mainly used to block and short-circuit an ac signal. The output waveform is smoother by filtering with a capacitor. The voltage resistance is improved through the series connection of the capacitors, and the capacity is increased in parallel connection, so that the output direct current is more stable. The dc filter is an important device for a converter station, is installed in parallel between a dc high-voltage bus and a neutral bus, is the most effective means for suppressing the direct-current side harmonic of a high-voltage direct-current power transmission system (HVDC), and is easy to generate heat when in use, so that it is required to radiate heat.

The direct current filter in the prior art dissipates heat to the internal temperature of the filter in a mode of arranging the radiating holes, but the internal temperature of the filter cannot be rapidly reduced only by the radiating holes, and the radiating holes are communicated with the inside of the filter, so that excessive dust is easily accumulated if the radiating holes are not cleaned, and the radiating effect of the filter is further influenced.

Disclosure of Invention

In view of the foregoing problems in the prior art, a main object of the present utility model is to provide a dc filter that facilitates heat dissipation.

The technical scheme of the utility model is as follows: the utility model provides a direct current filter convenient to heat dissipation, includes the shell, the inside both sides of shell are provided with ventilation filter screen, the inside fixedly connected with motor of shell, the output fixedly connected with first bevel gear of motor, the both sides fixedly connected with limiting plate at shell inner wall top, the inside rotation of limiting plate is connected with the dwang, two the dwang is close to the equal fixedly connected with second bevel gear of one end of first bevel gear, two the dwang is close to the equal fixedly connected with fan of one end of ventilation filter screen, the inside both sides of shell are equipped with ash removal mechanism.

As a preferred implementation mode, ash removal mechanism includes the fixed plate, fixed plate fixed connection is in the inside both sides of shell, the top fixedly connected with gag lever post of fixed plate, the outside sliding connection of gag lever post has the mount, the one end fixedly connected with brush that the mount is close to ventilation filter screen, one side fixedly connected with dead lever that the top of fixed plate is close to the gag lever post, mount and dead lever post sliding connection, the outside of dead lever just is provided with the spring between fixed plate and the mount.

As a preferred implementation mode, the top fixedly connected with top shell of shell, the inside of top shell rotates and is connected with the spliced pole, the outside fixedly connected with first belt pulley of spliced pole, the inside both sides of shell rotate and are connected with the lead screw, the top of lead screw extends to the outside fixedly connected with second belt pulley of top shell, the outside both sides of first belt pulley are provided with two driving belt, first belt pulley is connected with two second belt pulley transmission respectively through two driving belt.

As a preferable implementation mode, the two fixing frames are fixedly connected with connecting blocks on one side, close to the outer portion of the screw rod, of the fixing frames, and the connecting blocks are in threaded connection with the screw rod.

As a preferred implementation mode, the heat dissipation holes are formed in the bottom of the inner wall of the shell at equal intervals, and supporting feet are fixedly connected to two sides of the bottom of the shell.

As a preferred embodiment, the motor is electrically connected to an external controller.

Compared with the prior art, the utility model has the advantages and positive effects that:

according to the utility model, the motor is started through the external controller, the output end of the motor drives the first bevel gear to rotate, and the first bevel gear drives the two second bevel gears to rotate through the meshing relationship, so that the two second bevel gears drive the two fans to rotate under the limit of the limiting plate through the rotating rod, thereby blowing the ventilation filter screens on two sides, effectively improving the heat dissipation effect of the direct current filter, simultaneously cleaning and dedusting dust accumulated on the ventilation filter screens by using the ash removing mechanism, preventing dust in air from accumulating on the ventilation filter screens to affect the heat dissipation efficiency, greatly improving the practicability of the direct current filter, and greatly improving the operation quality and the use efficiency compared with the traditional device.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is an enlarged view of FIG. 2A in accordance with the present utility model;

fig. 4 is an enlarged view of fig. 2B in accordance with the present utility model.

Legend description: 1. a housing; 2. a motor; 3. a first bevel gear; 4. a limiting plate; 5. a rotating lever; 6. a fan; 7. a second bevel gear; 8. a ventilation filter screen; 9. a fixing plate; 10. a limit rod; 11. a fixing frame; 12. a brush; 13. a fixed rod; 14. a spring; 15. a connecting block; 16. a screw rod; 17. a top shell; 18. rotating the column; 19. a first pulley; 20. a drive belt; 21. a second pulley; 22. a heat radiation hole; 23. and supporting the feet.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.

The utility model will be further described with reference to the drawings and the specific embodiments

Example 1

As shown in fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a direct current filter convenient to heat dissipation, including shell 1, the inside both sides of shell 1 are provided with ventilation filter screen 8, the inside fixedly connected with motor 2 of shell 1, the output fixedly connected with first bevel gear 3 of motor 2, the both sides fixedly connected with limiting plate 4 at shell 1 inner wall top, the inside rotation of limiting plate 4 is connected with dwang 5, the equal fixedly connected with second bevel gear 7 of one end that two dwang 5 are close to first bevel gear 3, the equal fixedly connected with fan 6 of one end that two dwang 5 are close to ventilation filter screen 8, the inside both sides of shell 1 are equipped with ash removal mechanism.

In this embodiment, at first through external control ware start motor 2, motor 2's output drives first bevel gear 3 and rotates, first bevel gear 3 drives two second bevel gears 7 through the meshing relationship again and rotates for two second bevel gears 7 drive two fans 6 through dwang 5 and rotate under the spacing of limiting plate 4, thereby blow ventilation filter 8 to both sides, effectively promoted DC filter's radiating effect, simultaneously use ash removal mechanism can clean dust removal to the dust of accumulating on the ventilation filter 8, prevent that the dust in the air from piling up and leading to influencing radiating efficiency on ventilation filter 8, the practicality of this DC filter has been promoted widely.

Example 2

As shown in fig. 1-4, the ash removal mechanism comprises a fixed plate 9, the fixed plate 9 is fixedly connected to two inner sides of a shell 1, a limit rod 10 is fixedly connected to the top of the fixed plate 9, a fixing frame 11 is fixedly connected to the outer side of the limit rod 10, one end of the fixing frame 11, which is close to a ventilation filter screen 8, is fixedly connected with a hairbrush 12, one side of the top of the fixed plate 9, which is close to the limit rod 10, is fixedly connected with a fixed rod 13, the fixing frame 11 is in sliding connection with the fixed rod 13, a spring 14 is arranged between the fixed plate 9 and the fixing frame 11, the top of the shell 1 is fixedly connected with a top shell 17, a rotating column 18 is rotatably connected to the inner side of the top shell 17, a first belt pulley 19 is fixedly connected to the outer side of the rotating column 18, a screw 16 is rotatably connected to two inner sides of the shell 1, the top of the screw 16 extends to the outer side of the top shell 17, a second belt pulley 21 is fixedly connected to the outer side of the first belt pulley 19, two transmission belts 20 are respectively in transmission connection with the two second belt pulleys 21, one outer sides of the two fixing frames 11, which are close to the outer sides of the screw 16, a motor 15 is fixedly connected to the outer sides of the screw 16, and the inner wall of the inner side of the shell 1 is fixedly connected with a connecting block 2, a connecting block 23 is electrically connected to the bottom of the screw 1, and the inner wall of the outer side of the screw 1 is provided with a connecting block 2;

in this embodiment, when dust on the ventilation filter screen 8 needs to be cleaned, the rotating column 18 is manually rotated, so that the first belt pulley 19 can be driven to rotate, the first belt pulley 19 drives the two screw rods 16 to rotate through the second belt pulley 21 and the transmission belt 20, the screw rods 16 can drive the fixing frame 11 to ascend under the limit of the limit rod 10 through the connecting block 15, meanwhile, the spring 14 is pulled to stretch, the hairbrush 12 can be driven to clean the ventilation filter screen 8, after the single dust cleaning is finished, the rotating column 18 is loosened, the fixing frame 11 can be driven to return to the original position under the resilience force of the spring 14, when the ventilation filter screen 8 needs to be cleaned for multiple times, the rotating column 18 can be rotated for multiple times, the motor 2 in operation can be cooled through the cooling holes 22, the motor 2 is prevented from being damaged due to working overheat, and the supporting legs 23 at the bottom of the housing 1 can promote the stability of the filter during placement.

Working principle:

as shown in fig. 1-4, at first, start motor 2 through external control ware, motor 2's output drives first bevel gear 3 and rotates, first bevel gear 3 drives two second bevel gears 7 through the meshing relationship and rotates, make two second bevel gears 7 drive two fans 6 through dwang 5 and rotate under the spacing of limiting plate 4, thereby ventilation filter screen 8 to both sides is bloied, effectively promoted the radiating effect to direct current filter, simultaneously use ash removal mechanism to clean dust that accumulates on ventilation filter screen 8, prevent that the dust in the air from piling up and leading to influencing the radiating efficiency on ventilation filter screen 8, when need clear away the dust on the ventilation filter screen 8, manual rotation post 18, can drive first belt pulley 19 and rotate, make first belt pulley 19 drive two lead screws 16 through second belt pulley 21 and driving belt 20 and rotate, lead screw 16 can drive mount 11 under the spacing of spacing pole 10 through connecting block 15, the spring 14 stretches simultaneously, can drive brush 12 and carry out the radiating effect to direct current filter, after the single time, loosen the deashing post 18, can drive filter screen 11 and can be carried out the heat removal device to the heat dissipation device through the pivot in order to prevent to rotate the filter screen 2 when the filter screen 2 is carried out the time, can be carried out the heat dissipation device to the heat dissipation device is more in the normal position when the work is required to the filter screen 2 is carried out, can be broken in the heat dissipation device is more than the normal position is 2, can be had more than the 2 is broken because of the work is required to the bottom is placed to the 2.

Finally, it should be noted that: the embodiments described above are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The utility model provides a direct current filter convenient to heat dissipation, includes shell (1), its characterized in that: the inside both sides of shell (1) are provided with ventilation filter screen (8), the inside fixedly connected with motor (2) of shell (1), the output fixedly connected with first bevel gear (3) of motor (2), the both sides fixedly connected with limiting plate (4) at shell (1) inner wall top, the inside rotation of limiting plate (4) is connected with dwang (5), two the equal fixedly connected with second bevel gear (7) of one end that dwang (5) is close to first bevel gear (3), two the equal fixedly connected with fan (6) of one end that dwang (5) is close to ventilation filter screen (8), the inside both sides of shell (1) are equipped with ash removal mechanism.

2. A direct current filter for facilitating heat dissipation according to claim 1, wherein: the ash removal mechanism comprises a fixed plate (9), the fixed plate (9) is fixedly connected to two sides of the inside of the shell (1), a limiting rod (10) is fixedly connected to the top of the fixed plate (9), a fixing frame (11) is fixedly connected to the outside of the limiting rod (10) in a sliding mode, a hairbrush (12) is fixedly connected to one end of the fixing frame (11) close to a ventilation filter screen (8), a fixing rod (13) is fixedly connected to one side of the top of the fixed plate (9) close to the limiting rod (10), the fixing frame (11) is fixedly connected with the fixing rod (13) in a sliding mode, and a spring (14) is arranged between the fixing plate (9) and the fixing frame (11) outside of the fixing rod (13).

3. A direct current filter for facilitating heat dissipation according to claim 2, wherein: the top fixedly connected with top shell (17) of shell (1), the inside rotation of top shell (17) is connected with rotation post (18), the outside fixedly connected with first belt pulley (19) of rotation post (18), the inside both sides rotation of shell (1) are connected with lead screw (16), the outside fixedly connected with second belt pulley (21) that the top of lead screw (16) extends to top shell (17), the outside both sides of first belt pulley (19) are provided with two driving belt (20), first belt pulley (19) are connected with two second belt pulley (21) transmission respectively through two driving belt (20).

4. A direct current filter for facilitating heat dissipation according to claim 3, wherein: the two fixing frames (11) are fixedly connected with connecting blocks (15) on one side, close to the outer portion of the screw rod (16), of each fixing frame, and the connecting blocks (15) are in threaded connection with the screw rod (16).

5. A direct current filter for facilitating heat dissipation according to claim 1, wherein: the heat dissipation holes (22) are formed in the bottom of the inner wall of the shell (1) at equal intervals, and supporting feet (23) are fixedly connected to two sides of the bottom of the shell (1).

6. A direct current filter for facilitating heat dissipation according to claim 2, wherein: the motor (2) is electrically connected with an external controller.