CN215120564U

CN215120564U - Low-voltage input high-power DCDC converter

Info

Publication number: CN215120564U
Application number: CN202121350786.1U
Authority: CN
Inventors: 李晓军; 贾世朋; 冀彦涛; 常加旻; 刘俊峰; 袁莉
Original assignee: Xinxiang Taihang Jiaxin Electrical Technology Co ltd
Current assignee: Xinxiang Taihang Jiaxin Electrical Technology Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-10
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses a high-power DCDC converter of low-voltage input, including casing and last casing down, all weld all around of casing bottom inner wall has the column casing down, and the inside of column casing is pegged graft and is had the stylobate, and the stylobate is located the welding of the inside one end of column casing and has spacing dish, and welds on the bottom outer wall of spacing dish and have the spring, and the circuit board is installed through the screw in the top of stylobate, and the port department of casing both sides outer wall has all seted up the slot down, and it has all welded the picture peg of pegging graft inside the slot to go up the casing and be close to on the inside wall of slot. The utility model discloses the effect sliding connection of post through spacing dish and spring is in the inside of column casing for the circuit board casing inside has had fine buffering antidetonation effect down, and the picture peg is pegged graft in the inside of slot, makes to be connected compacter and stablely down between casing and the last casing, and the locating piece is pegged graft in the inside of constant head tank in the effect of limiting plate and volute spring, makes to be convenient for more dismantle the installation down between casing and the last casing.

Description

Low-voltage input high-power DCDC converter

Technical Field

The utility model relates to an electrician's technical field especially relates to a high-power DCDC converter of low-voltage input.

Background

The converter is a voltage converter which can effectively output fixed voltage after converting input voltage, and the DC/DC converter is divided into three types: a step-up DC/DC converter, a step-down DC/DC converter, and a step-up/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 conversion type performs PFM control at a small load and automatically converts to PWM control at a heavy load. At present, the DC-DC converter is 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.

In the prior art, the DCDC converter is inconvenient to mount and dismount, so that the efficiency of daily maintenance is low, and meanwhile, the heat dissipation effect is poor, so that the electronic elements in the converter are easy to have short circuit. Therefore, it is desirable to design a low-voltage input high-power DCDC converter to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving and having DCDC converter installation among the prior art and dismantle comparatively inconvenient for the efficiency of daily overhaul maintenance is lower, and the radiating effect is relatively poor simultaneously, makes the inside electronic component of converter easily appear the shortcoming of short circuit, and the high-power DCDC converter of low-voltage input who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a high-power DCDC converter of low-voltage input, includes casing and last casing down, all weld all around of casing bottom inner wall has the column casing down, and pegs graft in the inside of column casing has the stylobate, the stylobate is located the welding of the inside one end of column casing and has spacing dish, and welds on the bottom outer wall of spacing dish and have the spring, the circuit board is installed through the screw in the top of stylobate, and the port department of casing both sides outer wall all has seted up the slot down, it has all welded the picture peg of pegging graft in the slot on being close to the inside wall of slot to go up the casing.

The key concept of the technical scheme is as follows: the picture peg is pegged graft in the inside of slot for be connected compacter stably between casing and the last casing down, the effect sliding connection of post pole through spacing dish and spring is in the inside of column casing, makes the circuit board casing inside have fine buffering antidetonation effect down, and then has promoted the stability of circuit board when casing inside down.

Further, protruding plates are welded at the bottoms of the outer walls of the two sides of the upper shell, and screw holes are formed in the two ends of the center of the outer wall of the top of each protruding plate.

Further, go up the center department of casing both sides outer wall and all offer the grid that is equidistant structure and distributes, and it has the filter screen to bond on the inside wall of grid, it all installs the cooling fan through the screw on the inner wall that the casing is close to the grid to go up.

Further, the rectangular channel has all been seted up to the center department of lower casing both sides bottom outer wall, and pegs graft in the inside of rectangular channel and have the locating piece, the locating piece is located one side welding of rectangular channel inside and has the limiting plate, and the limiting plate welding has the vortex spring that is equidistant structure and distributes on keeping away from one side outer wall of locating piece.

Further, the locating piece passes through limiting plate and volute spring's effect sliding connection in the inside of rectangular channel, and goes up the casing and all seted up the constant head tank on being close to the both sides inner wall of locating piece, the locating piece agrees with in the inside of constant head tank.

The utility model has the advantages that:

1. through the pole that sets up, the pole is through the effect sliding connection of spacing dish and spring in the inside of column casing for the circuit board has fine buffering antidetonation effect inside the casing down, and then has promoted the stability of circuit board when the casing is inside down, novel structure, reasonable in design, the practicality is strong.

2. Through picture peg and the slot that sets up, the picture peg is pegged graft in the inside of slot for it is compacter stable to be connected between lower casing and the last casing, and is rational in infrastructure, and convenient operation is fit for promoting.

3. Through the locating piece that sets up, the locating piece is pegged graft in the inside of constant head tank in the effect of limiting plate and volute spring for be convenient for dismantle the installation more between lower casing and the last casing, the convenience is overhauld and is maintained electronic component in the converter.

4. Through the arranged heat dissipation electric fan, the heat dissipation electric fan rotates in the same direction, so that the air flow can pass through the converter in a through-flow manner, the heat exchange efficiency of the converter is greatly improved, and the service life of electronic elements in the converter is further prolonged.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a low-voltage input high-power DCDC converter according to the present invention;

fig. 2 is a schematic diagram of a structure for separating an upper casing from a lower casing of a low-voltage input high-power DCDC converter according to the present invention;

fig. 3 is a schematic structural diagram of a low-voltage input high-power DCDC converter according to the present invention;

fig. 4 is a schematic diagram of a rectangular slot structure of a low-voltage input high-power DCDC converter according to the present invention.

In the figure: the heat dissipation fan comprises a lower shell 1, an upper shell 2, a grid 3, a convex plate 4, a screw hole 5, a filter screen 6, a heat dissipation fan 7, an inserting plate 8, a slot 9, a circuit board 10, a column 11, a spring 12, a column rod 13, a limiting disc 14, a positioning block 15, a limiting plate 16, a rectangular groove 17, a vortex spring 18 and a positioning groove 19.

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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, a low-voltage input high-power DCDC converter includes a lower casing 1 and an upper casing 2, a column 11 is welded around the inner wall of the bottom of the lower casing 1, a column 13 is inserted into the column 11, a limiting disc 14 is welded at one end of the column 13 inside the column 11, a spring 12 is welded on the outer wall of the bottom of the limiting disc 14, a circuit board 10 is mounted on the top end of the column 13 through screws, slots 9 are formed at the end openings of the outer walls of the two sides of the lower casing 1, inserting plates 8 inserted into the slots 9 are welded on the inner wall of the upper casing 2 near the slots 9, the inserting plates 8 are inserted into the slots 9, so that the connection between the lower casing 1 and the upper casing 2 is more compact and stable, the column 13 is slidably connected inside the column 11 through the action of the limiting disc 14 and the spring 12, so that the circuit board 10 has a good buffering and shock-resistant effect inside the lower casing 1, thereby improving the stability of the circuit board 10 when inside the lower case 1.

As can be seen from the above description, the present invention has the following advantages: the inserting plate 8 is inserted into the inserting groove 9, so that the lower shell 1 and the upper shell 2 are connected more compactly and stably, the pole rod 13 is connected inside the column barrel 11 in a sliding mode through the limiting disc 14 and the spring 12, the circuit board 10 has a good buffering and anti-seismic effect inside the lower shell 1, and the stability of the circuit board 10 inside the lower shell 1 is further improved.

Further, protruding plate 4 has all been welded to the bottom of going up 2 both sides outer walls of casing, and screw 5 has all been seted up at the both ends of 4 top outer wall centers departments of protruding plate, and the collocation use of protruding plate 4 and screw 5 for the converter is convenient for carry out fixed mounting more.

Further, the center of the outer walls of the two sides of the upper shell 2 is provided with the grids 3 which are distributed in an equidistant structure, the inner side walls of the grids 3 are bonded with the filter screen 6, the inner walls, close to the grids 3, of the upper shell 2 are provided with the cooling fans 7 through screws, and the cooling fans 7 rotate in the same direction, so that airflow can pass through the converter in a through-flow manner, and the heat exchange efficiency of the converter is greatly improved.

Further, rectangular channel 17 has all been seted up to the center department of lower casing 1 both sides bottom outer wall, and the inside grafting of rectangular channel 17 has locating piece 15, and locating piece 15 is located one side welding of rectangular channel 17 inside and has a limiting plate 16, and the welding has the vortex spring 18 that is equidistance structure distribution on the limiting plate 16 keeps away from one side outer wall of locating piece 15.

Further, locating piece 15 passes through limiting plate 16 and vortex spring 18's effect sliding connection in the inside of rectangular channel 17, and go up casing 2 and all seted up constant head tank 19 on being close to the both sides inner wall of locating piece 15, locating piece 15 agrees with in the inside of constant head tank 19, locating piece 15 is pegged graft in the inside of constant head tank 19 in limiting plate 16 and vortex spring 18's effect, make casing 1 and last casing 2 between be convenient for dismantle the installation more, the convenience is overhauld and is maintained electronic component in the converter.

Adopt above-mentioned locating piece 15 to peg graft in the inside of constant head tank 19 at limiting plate 16 and volute spring 18's effect for be convenient for more dismantle the installation between lower casing 1 and the last casing 2, conveniently overhaul and maintain electronic component in the converter, and cooling fan 7 is the syntropy rotation, makes the air current can be the through-flow formula and passes the converter, very big promotion the heat exchange efficiency of converter.

In the following, some preferred embodiments or application examples are listed to help those skilled in the art to better understand the technical content of the present invention and the technical contribution of the present invention to the prior art:

example 1

A low-voltage input high-power DCDC converter comprises a lower shell 1 and an upper shell 2, wherein column tubes 11 are welded on the periphery of the inner wall of the bottom of the lower shell 1, column rods 13 are inserted into the column tubes 11, limiting discs 14 are welded at one ends of the column rods 13 positioned in the column tubes 11, springs 12 are welded on the outer walls of the bottoms of the limiting discs 14, circuit boards 10 are installed at the top ends of the column rods 13 through screws, slots 9 are formed in the end openings of the outer walls of two sides of the lower shell 1, inserting plates 8 inserted into the slots 9 are welded on the inner side walls, close to the slots 9, of the upper shell 2, the inserting plates 8 are inserted into the slots 9, so that the connection between the lower shell 1 and the upper shell 2 is more compact and stable, the column rods 13 are slidably connected inside the column tubes 11 through the action of the limiting discs 14 and the springs 12, and the circuit boards 10 have good shock-proof effect inside the lower shell 1, thereby improving the stability of the circuit board 10 when inside the lower case 1.

The bottom of the outer wall of each of the two sides of the upper shell 2 is welded with a convex plate 4, the two ends of the center of the outer wall of the top of each convex plate 4 are provided with screw holes 5, and the convex plates 4 and the screw holes 5 are matched for use, so that the converter is more convenient to fixedly mount; the center of the outer walls of the two sides of the upper shell 2 is provided with the grids 3 which are distributed in an equidistant structure, the inner side walls of the grids 3 are bonded with the filter screens 6, the inner walls of the upper shell 2, which are close to the grids 3, are provided with the cooling fans 7 through screws, and the cooling fans 7 rotate in the same direction, so that airflow can pass through the converter in a through-flow manner, and the heat exchange efficiency of the converter is greatly improved; rectangular grooves 17 are formed in the centers of the outer walls of the bottoms of the two sides of the lower shell 1, positioning blocks 15 are inserted into the rectangular grooves 17, limiting plates 16 are welded on one sides, located inside the rectangular grooves 17, of the positioning blocks 15, and vortex springs 18 distributed in an equidistant structure are welded on the outer walls of the limiting plates 16, far away from the positioning blocks 15; locating piece 15 is through limiting plate 16 and vortex spring 18's effect sliding connection in the inside of rectangular channel 17, and go up casing 2 and all seted up constant head tank 19 on being close to the both sides inner wall of locating piece 15, locating piece 15 agrees with in the inside of constant head tank 19, locating piece 15 is pegged graft in limiting plate 16 and vortex spring 18's effect in the inside of constant head tank 19 for be convenient for dismantle the installation more between casing 1 and the last casing 2 down, the convenience is overhauld and is maintained electronic component in the converter.

The working principle is as follows: when the low-voltage input high-power DCDC converter is used, an operator firstly covers the upper shell 2 to be connected with the outer part of the lower shell 1, at the moment, the inserting plate 8 is inserted into the inserting groove 9, so that the connection between the lower shell 1 and the upper shell 2 is more compact and stable, when the positioning groove 19 moves to the positioning block 15, the positioning block 15 is inserted into the positioning groove 19 under the action of the limiting plate 16 and the vortex spring 18, so that the lower shell 1 and the upper shell 2 are more convenient to disassemble and install, the electronic elements in the converter are convenient to overhaul and maintain, the radiating electric fans 7 rotate in the same direction, airflow can pass through the converter in a through-flow manner, the heat exchange efficiency of the converter is greatly improved, meanwhile, the column rod 13 is slidably connected into the column barrel 11 under the action of the limiting disc 14 and the spring 12, so that the circuit board 10 has a good buffering and anti-seismic effect in the lower shell 1, thereby improving the stability of the circuit board 10 when inside the lower case 1.

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. The utility model provides a high-power DCDC converter of low-voltage input, includes casing (1) and last casing (2) down, its characterized in that, all weld all around of casing (1) bottom inner wall has column casing (11) down, and the inside of column casing (11) is pegged graft and is had post (13), the one end welding that post (13) are located column casing (11) inside has spacing dish (14), and the welding has spring (12) on the bottom outer wall of spacing dish (14), circuit board (10) are installed through the screw in the top of post (13), and the port department of casing (1) both sides outer wall has all seted up slot (9) down, it has all welded picture peg (8) of pegging graft in slot (9) inside to go up on casing (2) is close to the inside wall of slot (9).

2. The low-voltage-input high-power DCDC converter according to claim 1, characterized in that the bottom of the outer wall of the upper shell (2) is welded with a convex plate (4), and both ends of the outer wall of the top of the convex plate (4) are provided with screw holes (5).

3. The low-voltage-input high-power DCDC converter according to claim 1, characterized in that the centers of the outer walls of both sides of said upper casing (2) are provided with grids (3) distributed in an equidistant structure, and the inner side walls of said grids (3) are bonded with a filter screen (6), and the inner walls of said upper casing (2) close to said grids (3) are provided with heat-dissipating fans (7) by screws.

4. The low-voltage-input high-power DCDC converter according to claim 1, wherein rectangular grooves (17) are formed in the centers of the outer walls of the bottoms of the two sides of the lower casing (1), positioning blocks (15) are inserted into the rectangular grooves (17), limiting plates (16) are welded to one side of each positioning block (15) located inside the corresponding rectangular groove (17), and vortex springs (18) distributed in an equidistant structure are welded to the outer wall of one side of each limiting plate (16) far away from the corresponding positioning block (15).

5. The low-voltage-input high-power DCDC converter according to claim 4, wherein said positioning block (15) is slidably connected inside the rectangular groove (17) by the action of a limiting plate (16) and a volute spring (18), and positioning grooves (19) are respectively formed on the inner walls of the two sides of the upper housing (2) close to the positioning block (15), and said positioning block (15) is engaged inside the positioning grooves (19).