CN212163146U

CN212163146U - Novel isolated DC-DC converter

Info

Publication number: CN212163146U
Application number: CN202021068141.4U
Authority: CN
Inventors: 曾忠
Original assignee: Nanjing Aoyunde Electronic Technology Co ltd
Current assignee: Nanjing Aoyunde Electronic Technology Co ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2020-12-15
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a novel isolated form direct current-direct current converter relates to electric energy conversion technical field, and the thermovent to traditional isolated form direct current-direct current converter is difficult to at the heat dissipation and the dustproof compatible problem between, now proposes following scheme, including converter main part, annular thermovent and ring road separation blade, the fixed surface of annular thermovent is connected with cross link, the surface of bolt fastening in the converter main part is passed through to the tip of cross link, the cross link divides the ring heat vent into a plurality of arc rings way. The utility model discloses an inside radiating effect of converter can be realized to annular thermovent, through the design of loop separation blade, can be when converter stop work to inside dustproof protection, through the design of arc louvre, can manually improve inside heat dissipation when converter standby leads to the loop separation blade can not open completely, also can block the arc louvre through the louvre separation blade and carry out dustproof block.

Description

Novel isolated DC-DC converter

Technical Field

The utility model relates to an electric energy conversion technology field especially relates to a novel isolated form direct current-direct current converter.

Background

A dc-dc converter is a converter that converts one dc power source into another dc power source having different output characteristics. Which may be referred to as a dc converter for short, is a solution proposed to solve the system efficiency, especially the efficiency of high power systems, and is a power electronic device that converts dc electrical energy into dc electrical energy with controllable voltage or current required by a load. The constant direct current voltage is chopped into a series of pulse voltages by fast on-off control of a power electronic device, the pulse width of the pulse series is changed by controlling the change of a duty ratio so as to realize the adjustment of an output voltage average value, and then the output voltage average value is filtered by an output filter to obtain direct current electric energy with controllable current or voltage on a controlled load.

The heat dissipation port of the traditional isolation type DC-DC converter is difficult to be compatible between heat dissipation and dust prevention.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel isolated form DC-DC converter has solved traditional isolated form DC-DC converter's thermovent and has been difficult to between the heat dissipation and dustproof compatible problem.

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

the utility model provides a novel isolated form direct current-direct current converter, includes converter main part, annular thermovent and ring way separation blade, the outer fixed surface of annular thermovent is connected with cross link, the tip of cross link passes through the surface of bolt fastening in the converter main part, the cross link divides the annular thermovent into a plurality of arc rings way, the ring way separation blade is rabbeted in every arc ring way of annular thermovent, the equal fixedly connected with connecting block in both ends of ring way separation blade, the surface of cross link is located one side fixedly connected with guide bar of connecting block, just the one end and the connecting block through connection of cross link are kept away from to the guide bar.

Preferably, the outer surface of guide bar has cup jointed the extension spring, just the both ends of extension spring are connected with the fixed surface of connecting block and cross link respectively.

Preferably, each loop baffle is provided with an arc-shaped heat dissipation hole, and the inside of each arc-shaped heat dissipation hole is connected with a heat dissipation hole baffle in a sliding clamping manner.

Preferably, the outer surface center position fixedly connected with screw thread post of cross linking bridge, the tip screw thread of screw thread post closes soon and is connected with the screw thread sleeve, screw thread sleeve's outer surface cross fixedly connected with straight-bar.

Preferably, the heat dissipation hole is characterized in that a short shaft is fixedly connected to the outer surface of one end of the heat dissipation hole blocking piece, and one end of the short shaft is fixedly connected with the straight rod.

Preferably, the front end of the converter main body is fixedly connected with a functional panel, and the annular heat dissipation opening is connected to a side air outlet of the converter main body.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an annular thermovent can realize the inside radiating effect of converter, design through the ring way separation blade, can carry out dustproof protection to inside when converter stop work, design through the arc louvre, can lead to the manual inside heat dissipation that improves when the ring way separation blade can not open completely in the converter standby, also can block the arc louvre through the louvre separation blade and carry out dustproof block, through the minor axis, the straight-bar, the design of screw sleeve isotructure, be convenient for drive all louvre separation blades and remove simultaneously, design through the screw thread post, the screw sleeve after the pairing of being convenient for carries on spacingly, design through the extension spring, be convenient for make the ring way separation blade reset when the converter stop work, thereby it prevents dust to plug up annular thermovent.

Drawings

Fig. 1 is a schematic diagram of a side view of a novel isolated dc-dc converter according to the present invention;

fig. 2 is a schematic front view of the structure of the present invention;

FIG. 3 is a schematic view showing the connection of the ring-shaped heat sink, the cross-shaped connecting frame, and the loop retaining plate in FIG. 1 according to the present invention;

fig. 4 is a bottom view connecting sectional view of the middle ring baffle and the cross-shaped connecting frame in fig. 3 according to the present invention.

In the figure: 1 converter main part, 2 function panels, 3 annular thermovents, 4 cross link, 5 ring way separation blades, 6 connecting blocks, 7 arc-shaped thermovents, 8 thermovent separation blades, 9 screw thread posts, 10 screw thread sleeves, 11 straight rods, 12 short shafts, 13 guide bars, 14 extension springs.

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.

Referring to fig. 1-4, a novel isolated dc-dc converter comprises a converter main body 1, an annular heat sink 3 and a ring barrier 5, wherein a cross-shaped connecting frame 4 is fixedly connected to the outer surface of the annular heat sink 3, the end of the cross-shaped connecting frame 4 is fixed to the outer surface of the converter main body 1 through bolts, the cross-shaped connecting frame 4 divides the annular heat sink 3 into a plurality of arc-shaped rings, the ring barrier 5 is embedded in each arc-shaped ring of the annular heat sink 3, connecting blocks 6 are fixedly connected to both ends of the ring barrier 5, a guide rod 13 is fixedly connected to one side of the connecting block 6 on the outer surface of the cross-shaped connecting frame 4, and one end of the guide rod 13, which is far away from the cross-shaped connecting frame 4, is in through connection.

In this embodiment, the outer surface of the guide rod 13 is sleeved with a tension spring 14, and two ends of the tension spring 14 are respectively fixedly connected with the surfaces of the connecting block 6 and the cross-shaped connecting frame 4.

In this embodiment, each loop retaining piece 5 is provided with an arc-shaped heat dissipation hole 7, and the inside of each arc-shaped heat dissipation hole 7 is slidably engaged with a heat dissipation hole retaining piece 8.

In this embodiment, the outer surface center position of cross linking bridge 4 fixedly connected with screw thread post 9, the tip screw thread of screw thread post 9 closes soon and is connected with threaded sleeve 10, the outer surface cross fixedly connected with straight-bar 11 of threaded sleeve 10.

In this embodiment, it is characterized in that the outer surface of one end of the heat dissipation hole blocking sheet 8 is fixedly connected with a short shaft 12, and one end of the short shaft 12 is fixedly connected with the straight rod 11.

In this embodiment, the front end of the converter body 1 is fixedly connected to the function panel 2, and the annular heat dissipation opening 3 is connected to the side air outlet of the converter body 1.

The working principle is as follows: in the embodiment, when the converter works, an internal fan works together, generated wind force pushes the loop blocking piece 5 outwards to enable the loop blocking piece 5 to be far away from an arc-shaped loop of the annular heat dissipation port 3, hot air in the converter is dissipated out through a gap opened by the loop blocking piece 5 to achieve a heat dissipation function, and when the converter and the internal fan stop working, the tension spring 14 drives the loop blocking piece 5 to reset through elastic contraction, and the loop blocking piece 5 blocks the arc-shaped loop, so that dust prevention is achieved; when the converter is in standby operation, when inside fan rotates at a slow speed, the wind-force of production is difficult to push open loop separation blade 5 completely, the radiating effect can reduce, can manually rotate screw sleeve 10 this moment, screw sleeve 10 drives straight-bar 11 rotatory, straight-bar 11 drives louvre separation blade 8 through minor axis 12 and removes to the other end from the one end of arc louvre 7, thereby make arc louvre 7 open, can improve the radiating effect when the standby through arc louvre 7, also can choose to continue to close arc louvre 7 and realize dustproof, specifically can select according to actual in service behavior.

In conclusion, can realize the inside radiating effect of converter through annular thermovent 3, design through ring way separation blade 5, can be when converter stop work to the inside dustproof protection, design through arc louvre 7, can lead to the manual inside heat dissipation that improves when ring way separation blade 5 can not open completely in converter standby, also can block arc louvre 7 through louvre separation blade 8 and carry out dustproof blocking, through minor axis 12, straight-bar 11, the design of screw sleeve 10 isotructure, be convenient for drive all louvre separation blades 8 and remove simultaneously, through the design of screw thread post 9, be convenient for carry on spacingly to the screw sleeve 10 after the pairing rotation, design through extension spring 14, be convenient for make ring way separation blade 5 reset when converter stop work, thereby it prevents dust to plug up annular thermovent 3.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

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 novel isolated DC-DC converter comprises a converter main body (1), an annular heat dissipation port (3) and an annular baffle plate (5), it is characterized in that the outer surface of the annular heat dissipation port (3) is fixedly connected with a cross-shaped connecting frame (4), the end part of the cross-shaped connecting frame (4) is fixed on the outer surface of the converter main body (1) through a bolt, the cross-shaped connecting frame (4) divides the annular heat dissipation port (3) into a plurality of arc-shaped circular paths, the loop retaining sheet (5) is embedded in each arc-shaped loop of the annular heat dissipation opening (3), both ends of the loop retaining sheet (5) are fixedly connected with connecting blocks (6), the outer surface of the cross-shaped connecting frame (4) is fixedly connected with a guide rod (13) at one side of the connecting block (6), and one end of the guide rod (13) far away from the cross-shaped connecting frame (4) is connected with the connecting block (6) in a penetrating way.

2. The novel isolated DC-DC converter according to claim 1, characterized in that the outer surface of the guide rod (13) is sleeved with a tension spring (14), and the two ends of the tension spring (14) are respectively fixedly connected with the surfaces of the connecting block (6) and the cross-shaped connecting frame (4).

3. The isolated dc-dc converter according to claim 1, wherein each loop stop (5) has an arc-shaped heat dissipation hole (7), and the inside of the arc-shaped heat dissipation hole (7) is slidably engaged with a heat dissipation hole stop (8).

4. The novel isolated DC-DC converter according to claim 1, characterized in that the central position of the outer surface of the cross-shaped connecting frame (4) is fixedly connected with a threaded column (9), the end of the threaded column (9) is connected with a threaded sleeve (10) in a threaded manner, and the cross-shaped outer surface of the threaded sleeve (10) is fixedly connected with a straight rod (11).

5. The novel isolated DC-DC converter according to claim 3, wherein a short shaft (12) is fixedly connected to the outer surface of one end of the heat dissipation hole baffle (8), and one end of the short shaft (12) is fixedly connected with the straight rod (11).

6. The novel isolated DC-DC converter according to claim 1, characterized in that the front end of the converter body (1) is fixedly connected with the functional panel (2), and the annular heat dissipation opening (3) is connected to the side air outlet of the converter body (1).