CN213185910U - Marine high-efficient stable dc-to-ac converter - Google Patents
Marine high-efficient stable dc-to-ac converter Download PDFInfo
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- CN213185910U CN213185910U CN202021254975.4U CN202021254975U CN213185910U CN 213185910 U CN213185910 U CN 213185910U CN 202021254975 U CN202021254975 U CN 202021254975U CN 213185910 U CN213185910 U CN 213185910U
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Abstract
The utility model discloses a marine high-efficient stable dc-to-ac converter, include: the comb-shaped radiating fin is arranged below the radiating plate, and a first U-shaped groove and a second U-shaped groove are formed in the comb-shaped radiating fin; the first heat pipe and the second heat pipe are respectively fixed in the first U-shaped groove and the second U-shaped groove; a fan fixed on the side of the heat dissipation plate; a housing having a plurality of ventilation openings formed at one side thereof; wherein the fan is fixed in the shell, and the fan is arranged on the side opposite to the ventilation opening; the evaporation parts of the first heat pipe and the second heat pipe are fully contacted with the lower surface of the heat dissipation plate, and the condensation parts of the first heat pipe and the second heat pipe are contacted with the comb-shaped heat dissipation plate; the wind generated by the fan flows to the ventilation opening along the clearance of the comb-shaped heat radiating fins. The heat pipe is arranged below the heat dissipation plate, the evaporation part of the heat pipe is fully contacted with the lower surface of the heat dissipation plate, and the heat dissipation performance of the inverter is further improved through the fan and the ventilation opening.
Description
Technical Field
The utility model relates to an inverter technical field, concretely relates to marine high-efficient stable dc-to-ac converter.
Background
An inverter is a device for converting direct current into alternating current, and is composed of an inverter bridge, control logic and a filter circuit, and is called simply because the inverter is an electronic device for converting low-voltage direct current into 220-volt alternating current, and the inverter is usually used for rectifying the 220-volt alternating current into direct current and has an opposite effect.
The current marine high-efficiency stable inverter directly conducts heat generated by the inverter out through an active heat dissipation mode, namely, a heat dissipation fin made of a heat conduction material, and then naturally dissipates the heat to the surrounding environment by means of heat radiation and natural convection. Because spontaneous heat dissipation is adopted, the heat dissipation performance is limited, and when high-power inverter output is needed, the requirement of an inverter cannot be met by active heat dissipation.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a marine high-efficient stable dc-to-ac converter to solve current dc-to-ac converter and adopt spontaneous heat dissipation, heat dispersion is limited, when the high-power contravariant of needs is exported, the problem of the demand of dc-to-ac converter just can not be satisfied in active heat dissipation.
The embodiment of the utility model provides a marine high-efficient stable dc-to-ac converter, include:
the comb-shaped radiating fin is arranged below the radiating plate, and a first U-shaped groove and a second U-shaped groove are formed in the comb-shaped radiating fin;
the first heat pipe is fixed in the first U-shaped groove;
the second heat pipe is fixed in the second U-shaped groove;
a fan fixed on the side of the heat dissipation plate;
a housing having a plurality of ventilation openings formed at one side thereof;
wherein the fan is fixed in the shell, and the fan is arranged on the side opposite to the ventilation opening; the evaporation parts of the first heat pipe and the second heat pipe are fully contacted with the lower surface of the heat dissipation plate, and the condensation parts of the first heat pipe and the second heat pipe are contacted with the comb-shaped heat dissipation plate; the wind generated by the fan flows to the ventilation opening along the clearance of the comb-shaped heat radiating fins.
Optionally, the first heat pipe and the second heat pipe are obliquely fixed below the heat dissipation plate.
Optionally, the first heat pipe and the second heat pipe are fixed below the heat dissipation plate by welding or embedding.
Optionally, a first groove is formed in the lower surface of the heat dissipation plate, the first groove is formed in the evaporation part of the first heat pipe, and the opening depth of the first groove is greater than or equal to the height of the evaporation part of the first heat pipe.
Optionally, a second groove is formed in the lower surface of the heat dissipation plate, the second groove is formed in the evaporation portion of the second heat pipe, and the opening depth of the second groove is greater than or equal to the height of the evaporation portion of the second heat pipe.
Optionally, the parts of the first heat pipe and the second heat pipe, which are in contact with the comb-shaped heat sink, are fixed by welding.
Optionally, a dust screen is provided in the region of the vent in the housing.
Optionally, the dust screen is a wire mesh; the wire mesh is connected to a power source in the housing, and an electric field capable of adsorbing particles is formed on the wire mesh.
Optionally, the power device at the bottom of the circuit board is located on the upper surface of the heat dissipation plate, an insulating heat conduction partition plate is arranged between the power device and the heat dissipation plate, and the lower surface of the power device is attached to the upper surface of the insulating heat conduction partition plate.
Optionally, a heat conducting glue or an indium foil is further disposed between the insulating heat conducting partition plate and the heat dissipation plate.
The utility model discloses beneficial effect of embodiment: the smooth upper surface of heating panel is used for placing the circuit board, the below of heating panel is comb type fin, the part of fin is the spill, form two U type clearance recesses, a be used for placing first heat pipe and second heat pipe, the heating panel is fixed in the casing, the fan is installed to one side of casing, a plurality of vents have been seted up to the opposite side relative with fan place one side, the dust screen has been installed to the vent region at the casing inboard, the installation direction of heating panel in the casing sets up according to the wind direction of fin and fan, the wind of fan blows to the vent along the space of comb type fin, through set up the heat pipe below the heating panel, and make the evaporation plant section of heat pipe fully contact with heating panel lower surface: the evaporation parts of the first heat pipe and the second heat pipe are fully contacted with the lower surface of the heat dissipation plate, the condensation parts of the first heat pipe and the second heat pipe are contacted with the comb-shaped heat dissipation plate, and the heat dissipation performance of the inverter is further improved by combining the fan and the ventilation opening.
Drawings
The features and advantages of the invention will be more clearly understood by reference to the accompanying drawings, which are schematic and should not be understood as imposing any limitation on the invention, in which:
fig. 1 shows a block diagram of a marine high-efficiency stable inverter according to an embodiment of the present invention;
fig. 2 shows a side view of a heat sink plate of a marine high-efficiency stable inverter according to an embodiment of the present invention;
fig. 3 shows a bottom structure diagram of a heat dissipation plate of a marine high-efficiency stable inverter in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment of the utility model provides a marine high-efficient stable dc-to-ac converter, as shown in fig. 1-3, including heating panel 1, first heat pipe 2, second heat pipe 3, fan 4 and casing 5, wherein: the smooth upper surface of heating panel 1 is used for placing the circuit board, and the power device of circuit board bottom contacts with heating panel 1 upper surface to promote the radiating effect. The lower part of the heat dissipation plate 1 is a comb-shaped heat dissipation plate 11, the part of the heat dissipation plate 11 is concave, two U-shaped gap grooves are formed and used for placing a first heat pipe 2 and a second heat pipe 3, the heat dissipation plate 1 is fixed in a shell 5, a fan is installed on one side of the shell 5, a plurality of ventilation openings 51 are formed in the other side opposite to the side where the fan is located, a dustproof net is installed in the ventilation opening area on the inner side of the shell, the installation direction of the heat dissipation plate 1 in the shell 5 is set according to the wind directions of the heat dissipation plate 11 and the fan 4, and the wind of the fan 4 blows towards the ventilation openings.
The first heat pipe and the second heat pipe are U-shaped heat pipes, and the part of the heat pipe close to the center of the heat dissipation plate is an evaporation part and is used for contacting a heat source; the part of the heat pipe far away from the center of the heat dissipation plate is a condensation part for heat dissipation.
As shown in fig. 2, in order to make the heat pipes function sufficiently, the first heat pipe and the second heat pipe are fixed under the heat dissipation plate in an inclined manner, specifically, the opening depth of the U-shaped clearance groove on the lower surface of the heat dissipation plate is deeper as the U-shaped clearance groove is closer to the center of the heat dissipation plate, and the heat pipes are fixed under the heat dissipation plate by welding or embedding. The contact area between the evaporation part of the heat pipe and the lower surface of the heat dissipation plate is as large as possible, for example, the evaporation part of the heat pipe is completely welded in a groove on the lower surface of the heat dissipation plate, or the heat pipe is pressed and connected below the heat dissipation plate through another copper block with a U-shaped groove. As shown in fig. 1 and 2, the condensation portion of the heat pipe may or may not extend beyond the outermost fins.
The heat dissipation performance of the inverter is further improved by arranging the heat pipe below the heat dissipation plate, enabling the evaporation part of the heat pipe to be in full contact with the lower surface of the heat dissipation plate and combining the fan and the ventilation opening.
In the specific embodiment, the contact part of the heat pipe and the radiating fin is also welded, so that the heat emitted by the electronic element can penetrate through the heat pipe along the wall thickness direction of the radiating plate to directly heat the evaporation working medium, and the heat transfer efficiency is greatly increased.
The dustproof net at the vent is a wire mesh, and the wire mesh is electrified by a built-in power supply, so that a weak electric field is formed on the wire mesh, and the wire mesh can adsorb dust. The built-in power supply is a lithium battery, and when the inverter works, the lithium battery is charged; when the inverter is idle, the lithium battery continuously energizes the metal wire mesh, and the work of the dustproof mesh is guaranteed.
The part of fin 11 is the spill, forms two U type clearance recesses, as shown in figure 1, and first heat pipe and second heat pipe form the evaporation portion of approximate oval on the heating panel, through pressure differential and average heat flux density experiment, with section oval heat pipe than circular heat pipe radiating efficiency higher, because can make steam find the cold wall more easily in oval heat pipe inside condensation segment, consequently oval heat pipe radiator's heat dispersion is better than circular heat pipe radiator's performance.
In a specific embodiment, the fins in contact with the heat pipes are 0.2mm fins with a fin pitch of 1.5mm and the fan provides an inlet wind speed of 2.0 m/s.
In an optional embodiment, the power device at the bottom of the circuit board is located on the upper surface of the heat dissipation plate, an insulating heat conduction partition plate is arranged between the power device and the heat dissipation plate, and the lower surface of the power device is attached to the upper surface of the insulating heat conduction partition plate.
The grooves with the same positions and shapes as the power devices are formed in the heat-conducting partition plate, the lower surfaces and the side surfaces of the power devices are in contact with the grooves in the heat-conducting partition plate, the contact area is increased, and the heat dissipation effect is further improved.
In an alternative embodiment, a heat conducting glue or indium foil is further disposed between the insulating heat conducting partition plate and the heat dissipation plate.
The insulating heat-conducting partition plate and the heat dissipation plate are coated or filled with heat-conducting glue or indium foil, so that the surfaces of the power devices are fully contacted, the heat-conducting cross-sectional area is increased, and the influence on the operation of the power devices caused by thermal resistance due to uneven surfaces and poor contact is avoided.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (10)
1. A marine high efficiency stabilized inverter, comprising:
the comb-shaped radiating fin is arranged below the radiating plate, and a first U-shaped groove and a second U-shaped groove are formed in the comb-shaped radiating fin;
the first heat pipe is fixed in the first U-shaped groove;
the second heat pipe is fixed in the second U-shaped groove;
a fan fixed to a side surface of the heat dissipation plate;
a housing having a plurality of ventilation openings formed at one side thereof;
wherein the fan is fixed in the housing on a side opposite the vent; the evaporation parts of the first heat pipe and the second heat pipe are fully contacted with the lower surface of the heat dissipation plate, and the condensation parts of the first heat pipe and the second heat pipe are contacted with the comb-shaped heat dissipation plate; the wind generated by the fan flows to the ventilation opening along the clearance of the comb-shaped heat radiating fins.
2. The inverter according to claim 1, wherein the first heat pipe and the second heat pipe are fixed to be inclined below the heat radiating plate.
3. The efficient and stable inverter for ship of claim 2, wherein the first heat pipe and the second heat pipe are fixed under the heat dissipation plate by welding or embedding.
4. The inverter according to claim 1, wherein a first groove is formed in a lower surface of the heat dissipation plate, the first groove is located in an evaporation portion of the first heat pipe, and an opening depth of the first groove is greater than or equal to a height of the evaporation portion of the first heat pipe.
5. The inverter according to claim 1, wherein a second groove is formed in a lower surface of the heat dissipation plate, the second groove is located in an evaporation portion of the second heat pipe, and a depth of an opening of the second groove is greater than or equal to a height of the evaporation portion of the second heat pipe.
6. The efficient and stable inverter for ship as claimed in claim 1, wherein the portions of the first and second heat pipes contacting the comb-shaped heat sink are fixed by welding.
7. The marine high efficiency stabilized inverter of claim 1, wherein a dust screen is provided in said vent area within said housing.
8. The marine high efficiency stable inverter of claim 7 wherein the dust screen is a wire mesh; the wire mesh is connected to a power source in the housing, and an electric field capable of adsorbing particles is formed on the wire mesh.
9. The efficient and stable inverter for ship of claim 1, wherein the power device at the bottom of the circuit board is located on the upper surface of the heat dissipation plate, an insulating and heat conducting partition plate is arranged between the power device and the heat dissipation plate, and the lower surface of the power device is attached to the upper surface of the insulating and heat conducting partition plate.
10. The efficient and stable inverter for ship of claim 9, wherein a heat conducting glue or an indium foil is further disposed between said insulating heat conducting partition plate and said heat dissipating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021254975.4U CN213185910U (en) | 2020-06-30 | 2020-06-30 | Marine high-efficient stable dc-to-ac converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021254975.4U CN213185910U (en) | 2020-06-30 | 2020-06-30 | Marine high-efficient stable dc-to-ac converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213185910U true CN213185910U (en) | 2021-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021254975.4U Active CN213185910U (en) | 2020-06-30 | 2020-06-30 | Marine high-efficient stable dc-to-ac converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213185910U (en) |
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2020
- 2020-06-30 CN CN202021254975.4U patent/CN213185910U/en active Active
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