CN212343627U

CN212343627U - Heat radiation structure of DC-DC converter

Info

Publication number: CN212343627U
Application number: CN202020834747.8U
Authority: CN
Inventors: 詹锐
Original assignee: Shenzhen Xingxiu Electronics Co ltd
Current assignee: Shenzhen Xingxiu Electronics Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-01-12
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a heat radiation structure of DC-DC converter, which comprises an outer shell, the both sides of shell bottom outer wall all are fixed with the mounting bar through the bolt, and the mounting hole that the equidistance distributes is all seted up to the top outer wall of two mounting bars, the radiating groove has all been seted up to the both sides outer wall of shell, and the inner wall of two radiating grooves all has heat radiation fins through the bolt fastening, the round mouth has all been seted up to the both sides of shell one side outer wall, and the inner wall of two round mouths all has the spool through the bolt fastening, the thermovent has been seted up to shell top outer wall, and the inner wall of thermovent passes through the bolt fastening and has the heat dissipation window. The utility model discloses a set up deashing mechanism in shell bottom air intake position, carry out the rolling to filterable first filter screen through two collection rollers, carry out the rolling through motor drive wind-up roll simultaneously, the first scraper blade of the deashing mechanism bottom of deuterogamying clears up the dust of adhesion on with first filter screen.

Description

Heat radiation structure of DC-DC converter

Technical Field

The utility model relates to a DC-DC converter technical field especially relates to a heat radiation structure of DC-DC converter.

Background

The DC/DC converter is a voltage converter that effectively outputs a fixed voltage after converting an input voltage. DC/DC converters are divided into three categories: a step-up DC/DC converter, a step-down DC/DC converter, and a step-up/step-down DC/DC converter. Three types of control can be used as required. The PWM control type is efficient and has good output voltage ripple and noise. The PFM control type has an advantage of low power consumption even when used for a long time, particularly when used under a small load. The PWM/PFM switching type PFM control is carried out at the time of a small load, and is automatically switched to the PWM control at the time of a heavy load. DC-DC converters are widely used in products such as mobile phones, MP3, digital cameras, portable media players, and the like. Belonging to chopper circuits in circuit type classification.

The existing converter is cooled by air, the cost of the cooling mode is low, the operation is relatively easy, however, the cooling mode of air cooling can cause a large amount of dust to gather at the position of an air inlet, and the blockage of the air inlet can cause the influence on the heat dissipation due to untimely cleaning.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and provides a heat radiation structure of a DC-DC converter.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a heat radiation structure of DC-DC converter, includes the shell, the both sides of shell bottom outer wall all are equipped with the mounting bar through the bolt fastening, and the mounting hole that the equidistance distributes is all seted up to the top outer wall of two mounting bars, the radiating groove has all been seted up to the both sides outer wall of shell, and the inner wall of two radiating grooves all has heat radiation fins through the bolt fastening, the round mouth has all been seted up to the both sides of shell one side outer wall, and the inner wall of two round mouths all has the spool through the bolt fastening, the thermovent has been seted up to shell top outer wall, and the inner wall of thermovent has the heat dissipation window through the bolt fastening, the four corners department of shell bottom outer wall all has the cushion through the bolt fastening, the air.

Preferably, the inner wall of the air inlet is fixed with an ash removal mechanism through a bolt, and two sides of the outer wall of the bottom of the ash removal mechanism are both fixed with first scraping plates through bolts.

Preferably, the deashing mechanism includes the mounting box, and all there is a mounting bracket, two in the both sides of mounting box bottom inner wall through the bolt fastening the inner wall of mounting bracket all has the collection roller through the bolt fastening, and two one ends of collecting the roller transmission shaft all cup jointed driven pulley, two the outer wall of collecting the roller has same first filter screen around having cup jointed, mounting box bottom inner wall has the motor through the bolt fastening, and has cup jointed driving pulley on the output shaft of motor.

Preferably, be connected with same belt between drive pulley and the two driven pulleys, the both sides of mounting box bottom inner wall all are fixed with the mount through the bolt, and the both sides of two mount top inner walls all are fixed with the spring beam through the bolt, four the one end of spring beam passes through the bolt respectively and is fixed with two pinch rollers, the rectangle opening has been seted up to mounting box bottom outer wall.

Preferably, both sides of the outer wall of the bottom of the shell are fixed with electric sliding rails through bolts, and the inner walls of the two electric sliding rails are connected with the same second scraper blade in a sliding manner.

Preferably, the inner wall of the air inlet is fixed with a second filter screen through a bolt, and the second scraper blade is in contact with the second filter screen.

Preferably, the electric slide rail and the motor are both connected with a switch through a lead, and the switch is connected with a controller through a lead.

The utility model has the advantages that:

1. according to the heat dissipation structure of the DC-DC converter, the dust cleaning mechanism is arranged at the air inlet at the bottom of the shell, the first filter screen is rolled through the two collecting rollers, the rolling roller is driven by the motor to roll, and dust adhered to the first filter screen is cleaned by the aid of the first scraper at the bottom of the dust cleaning mechanism.

2. This heat radiation structure of DC-DC converter, perhaps through electronic slide rail drive second scraper blade on the second filter screen reciprocating motion, directly clear up the dust on the second filter screen, prevent that the dust gathering from influencing the air intake air.

3. According to the heat dissipation structure of the DC-DC converter, the heat dissipation grooves are formed in the two sides of the shell, and the heat dissipation fins are arranged in the two heat dissipation grooves to help heat dissipation, so that the heat dissipation efficiency of the converter is improved.

Drawings

Fig. 1 is a schematic structural diagram of a heat dissipation structure of a DC-DC converter according to the present invention;

fig. 2 is a schematic bottom structure diagram of an embodiment of a heat dissipation structure of a DC-DC converter according to the present invention;

fig. 3 is a schematic structural diagram of an ash removal mechanism according to an embodiment of a heat dissipation structure of a DC-DC converter provided by the present invention;

fig. 4 is a schematic view of a fixing frame structure according to an embodiment of a heat dissipation structure of a DC-DC converter provided in the present invention;

fig. 5 is a schematic bottom structure diagram of a heat dissipation structure of a DC-DC converter according to an embodiment of the present invention.

In the figure: the device comprises a shell 1, a mounting strip 2, a mounting hole 3, heat dissipation fins 4, a line tube 5, a heat dissipation window 6, a rubber mat 7, an ash removal mechanism 8, a first scraper blade 9, a mounting box 10, a collecting roller 11, a driven belt pulley 12, a fixed frame 13, a belt 14, a motor 15, a driving belt pulley 16, a first filter screen 17, a spring rod 18, a pressing wheel 19, an electric sliding rail 20, a second filter screen 21 and a second scraper blade 22.

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.

Example one

Referring to fig. 1-4, a heat dissipation structure of a DC-DC converter comprises a housing 1, mounting bars 2 are fixed on both sides of the outer wall of the bottom of the housing 1 through bolts, mounting holes 3 are equidistantly formed in the outer walls of the tops of the two mounting bars 2, heat dissipation grooves are formed in the outer walls of both sides of the housing 1, heat dissipation fins 4 are fixed on the inner walls of both heat dissipation grooves through bolts, round openings are formed in both sides of the outer wall of one side of the housing 1, wire pipes 5 are fixed on the inner walls of both round openings through bolts, heat dissipation openings are formed in the outer wall of the top of the housing 1, heat dissipation windows 6 are fixed on the inner walls of the heat dissipation openings through bolts, rubber pads 7 are fixed on four corners of the outer wall of the bottom of the housing 1 through bolts, air inlets are formed in the outer wall of the bottom of the housing 1, ash removal mechanisms 8 are fixed on the inner walls of the air inlets through bolts, the ash cleaning mechanism 8 comprises a mounting box 10, mounting frames are fixed on two sides of the inner wall of the bottom of the mounting box 10 through bolts, collecting rollers 11 are fixed on the inner walls of the two mounting frames through bolts, one end of the transmission shafts of the two collecting rollers 11 is sleeved with a driven belt pulley 12, the outer walls of the two collecting rollers 11 are wound with the same first filter screen 17, the inner wall of the bottom of the mounting box 10 is fixed with a motor 15 through a bolt, and the output shaft of the motor 15 is sleeved with a driving belt pulley 16, the same belt 14 is connected between the driving belt pulley 16 and the two driven belt pulleys 12, both sides of the inner wall of the bottom of the mounting box 10 are fixed with fixing frames 13 through bolts, and the two sides of the inner wall of the top of the two fixing frames 13 are all fixed with spring rods 18 through bolts, one ends of the four spring rods 18 are respectively fixed with two pinch rollers 19 through bolts, and the outer wall of the bottom of the mounting box 10 is provided with a rectangular opening.

Example two

Referring to fig. 1 and 5, a heat dissipation structure of a DC-DC converter comprises a housing 1, wherein mounting bars 2 are fixed on both sides of the outer wall of the bottom of the housing 1 through bolts, mounting holes 3 are formed in the outer walls of the tops of the two mounting bars 2 and are equidistantly distributed, heat dissipation grooves are formed in the outer walls of both sides of the housing 1, heat dissipation fins 4 are fixed on the inner walls of both heat dissipation grooves through bolts, round openings are formed in both sides of the outer wall of one side of the housing 1, wire pipes 5 are fixed on the inner walls of both round openings through bolts, heat dissipation openings are formed in the outer wall of the top of the housing 1, heat dissipation windows 6 are fixed on the inner walls of the heat dissipation openings through bolts, rubber pads 7 are fixed on four corners of the outer wall of the bottom of the housing 1 through bolts, air inlets are formed in the outer wall of the bottom of the housing 1, electric sliding rails 20 are fixed on both sides of the outer wall of, the inner wall of air intake is fixed with second filter screen 21 through the bolt, and second scraper blade 22 and second filter screen 21 contact, and electronic slide rail 20 is connected with the switch through the wire, and the switch is connected with the controller through the wire.

The working principle is as follows: during the use, when the converter is using, the inside of converter can produce a large amount of heats, the inside fan of converter starts help the converter to dispel the heat simultaneously, air intake play air flow speed accelerates when the fan starts, simultaneously the impurity dust in the air can gather in the filter screen play, when the converter stop work, motor 15 in the embodiment one starts to drive two collection roller 11 and rotates first filter screen 17 to the air intake position department and carry out the rolling change, when the rolling, scrape off the dust on first filter screen 17 through first scraper blade 9, can directly scrape off the dust on second filter screen 21 through the reciprocating motion of electronic slide rail 20 drive second scraper blade 22 in the embodiment two.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A heat dissipation structure of a DC-DC converter, comprising a housing (1), both sides of the outer wall of the bottom of the shell (1) are fixedly connected with mounting bars (2), the outer walls of the tops of the two mounting bars (2) are respectively provided with mounting holes (3) which are distributed at equal intervals, the outer walls of the two sides of the shell (1) are respectively provided with a heat dissipation groove, and the inner walls of the two radiating grooves are fixedly connected with radiating fins (4), the two sides of the outer wall of one side of the shell (1) are both provided with round openings, and the inner walls of the two round openings are fixedly connected with wire pipes (5), the outer wall of the top of the shell (1) is provided with a heat dissipation opening, and the inner wall of thermovent fixedly connected with heat dissipation window (6), equal fixedly connected with cushion (7) in four corners department of shell (1) bottom outer wall, the air intake has been seted up to shell (1) bottom outer wall.

2. The heat dissipation structure of a DC-DC converter according to claim 1, wherein the inner wall of the air inlet is fixedly connected with a dust cleaning mechanism (8), and both sides of the outer wall of the bottom of the dust cleaning mechanism (8) are fixedly connected with first scrapers (9).

3. The heat dissipation structure of a DC-DC converter according to claim 2, wherein the ash removal mechanism (8) comprises a mounting box (10), both sides of the inner wall of the bottom of the mounting box (10) are fixedly connected with mounting frames, the inner walls of the two mounting frames are fixedly connected with collecting rollers (11), one ends of transmission shafts of the two collecting rollers (11) are sleeved with driven belt pulleys (12), the outer walls of the two collecting rollers (11) are wound with a same first filter screen (17), the inner wall of the bottom of the mounting box (10) is fixedly connected with a motor (15), and an output shaft of the motor (15) is sleeved with a driving belt pulley (16).

4. The heat dissipation structure of a DC-DC converter according to claim 3, wherein the same belt (14) is connected between the driving pulley (16) and the two driven pulleys (12), both sides of the inner wall of the bottom of the mounting box (10) are fixedly connected with fixing frames (13), both sides of the inner wall of the top of the two fixing frames (13) are fixedly connected with spring rods (18), one end of each of the four spring rods (18) is fixedly connected with two pinch rollers (19) through bolts, and the outer wall of the bottom of the mounting box (10) is provided with a rectangular opening.

5. The heat dissipation structure of a DC-DC converter according to claim 1, wherein both sides of the outer wall of the bottom of the housing (1) are fixedly connected with electric sliding rails (20), and the inner walls of the two electric sliding rails (20) are slidably connected with the same second scraper (22).

6. The heat dissipation structure of a DC-DC converter according to claim 5, wherein the inner wall of the air inlet is fixedly connected with a second filter screen (21), and the second scraper (22) is in contact with the second filter screen (21).

7. The heat dissipation structure of a DC-DC converter according to claim 6, wherein the electric slide rail (20) and the motor (15) are connected with a switch through wires, and the switch is connected with a controller through wires.