CN216291945U - Water-cooling three-level frequency conversion device - Google Patents
Water-cooling three-level frequency conversion device Download PDFInfo
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- CN216291945U CN216291945U CN202122414731.9U CN202122414731U CN216291945U CN 216291945 U CN216291945 U CN 216291945U CN 202122414731 U CN202122414731 U CN 202122414731U CN 216291945 U CN216291945 U CN 216291945U
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Abstract
The utility model discloses a water-cooling three-level frequency conversion device which comprises a water-cooling plate radiator, wherein a first power device and a second power device are respectively arranged on two sides of the water-cooling plate radiator; the water-cooling three-level frequency conversion device is compact in layout, independent heat dissipation of devices with different power consumptions is achieved, the heat dissipation effect is good, and the cost is low.
Description
Technical Field
The utility model relates to the technical field of wind power converters, photovoltaic inverters and frequency converters, in particular to a water-cooling three-level frequency conversion device.
Background
At present, the high-power three-level frequency converter device mainly comprises main components such as a power device IGBT, a capacitor, a radiator and the like, when the power of the frequency converter device reaches megawatt level, the loss of the frequency converter device is increased step by step, and in order to meet the radiating requirement, an air-cooled aluminum radiator is adopted to be matched with a fan to take away the heat of the power device IGBT and the capacitor under the common condition. Under the same condition, the heat of the IGBT and the capacitor of the power device can be taken away by adopting a water cooling plate, and the two existing frequency conversion device layout modes have large volume and unreasonable layout, so that the cost of the whole device is higher. Meanwhile, when the frequency conversion device is integrated in the complete system, the volume of the complete system becomes larger, and higher transportation and construction cost is brought to customers.
Therefore, a water-cooling three-level frequency conversion device which is compact in layout, capable of achieving independent heat dissipation of devices with different power consumptions, good in heat dissipation effect and low in cost is needed urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a water-cooling three-level frequency conversion device which is compact in layout, realizes independent heat dissipation of devices with different power consumptions, and is good in heat dissipation effect and low in cost.
In order to solve the technical problem, the utility model provides a water-cooling three-level frequency conversion device which comprises a water-cooling plate radiator, wherein a first power device and a second power device are respectively installed on two sides of the water-cooling plate radiator, a capacitor assembly is arranged on one side of the water-cooling plate radiator, the first power device and the second power device are connected through a first positive laminated copper bar and a second negative laminated copper bar, the capacitor assembly is connected with the first power device through a second positive laminated copper bar and a second negative laminated copper bar, and the capacitor assembly and the power devices are subjected to heat dissipation in an independent heat dissipation mode.
Preferably, the capacitor assembly dissipates heat in an air cooling heat dissipation mode, and the first power device and the second power device dissipate heat in a water cooling heat dissipation mode.
Preferably, the capacitor bank is arranged on the opposite side of the water-cooled plate radiator from the water inlet and outlet of the water-cooled plate, and the electrode side of the capacitor assembly is arranged on the side of the water-cooled plate radiator where the first power device is arranged.
Preferably, the current flows into the first power device through the interface of the second positive and negative laminated copper bar and the capacitor assembly; the current enters the second power device through the first positive and negative laminated copper bar interface and forms alternating current
Preferably, the device further comprises a current or voltage detection device, and the alternating current is output through the current or voltage detection device.
Preferably, the second positive-negative laminated copper bar is arranged between the capacitor assembly and the first power assembly.
Preferably, a heat dissipation fan for taking away heat in the cavity of the capacitor assembly is arranged above the capacitor assembly.
Preferably, the water-cooled plate radiator is provided with a water inlet and a water outlet for taking heat of the power device away through inflow circulating liquid.
After adopting above-mentioned structure, three level frequency conversion device of water-cooling, its characterized in that: the water-cooled plate radiator comprises a water-cooled plate radiator, wherein a first power device and a second power device are respectively arranged on two sides of the water-cooled plate radiator, a capacitor assembly is arranged on one side of the water-cooled plate radiator, the first power device and the second power device are connected through a first positive-negative laminated copper bar, the capacitor assembly is connected with the first power device through a second positive-negative laminated copper bar, and the capacitor assembly and the power devices are radiated in an independent radiating mode; the water-cooling three-level frequency conversion device is compact in layout, independent heat dissipation of devices with different power consumptions is achieved, the heat dissipation effect is good, and the cost is low. .
Drawings
FIG. 1 is a front view of a water-cooled three-level inverter according to the present invention;
FIG. 2 is a left side view of the water-cooled three-level inverter of the present invention;
FIG. 3 is a right side view of the water-cooled three-level inverter of the present invention;
FIG. 4 is a left side axial view of the water-cooled three-level inverter of the present invention;
fig. 5 is a right side axial view of the water-cooled three-level inverter apparatus of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Example one
Referring to fig. 1, fig. 1 is an overall structure diagram of an integrated wall-mounted structure of an inductor and a heat sink according to the present invention; the embodiment discloses a three level frequency conversion device of water-cooling, including water-cooling panel radiator 2, first power device 5 and second power device 12 are installed respectively to the both sides of water- cooling panel radiator 2, 2 one sides of water-cooling panel radiator are provided with electric capacity subassembly 3, first power device 5 and second power device 12 are connected through positive negative stromatolite copper bar 7, electric capacity subassembly 3 is through positive negative stromatolite copper bar 4 connection first power device 5 of second, electric capacity subassembly 3 dispels the heat through independent radiating mode with power device.
In the present embodiment, the capacitor assembly 3 dissipates heat by an air-cooling heat dissipation method, and the first power device 5 and the second power device 12 dissipate heat by a water-cooling heat dissipation method.
In the present embodiment, the second positive-negative laminated copper bar 4 is disposed between the capacitor assembly 3 and the first power device 5.
In this embodiment, the first positive-negative laminated copper bar 7 and the second positive-negative laminated copper bar 4 are respectively provided with an interface for current transmission, and the current flows into the first power device 5 through the interface of the second positive-negative laminated copper bar 4 and the capacitor assembly 3; the current flowing into the first power device 5 enters the second power device 12 through the interface of the first positive-negative laminated copper bar 7 and forms alternating current.
In water-cooling plate radiator 2 sets up casing 1, 2N first power device 5 are installed respectively to water-cooling plate radiator 2 one side, N second power device 12 are installed to water-cooling plate opposite side, capacitor assembly 3 sets up on water-cooling plate radiator 2 with water-cooling plate inlet outlet 10, 11 opposite one side, capacitor assembly 3's electrode side is installed and is provided with one side of first power device 5 on water-cooling plate radiator 2, capacitor assembly 3's electrode side 31 is installed and is had one side of 2N first power device 5 at water-cooling plate radiator 2.
The integrated wall hanging structure of the inductor and the radiator reduces the section size of the radiator, removes a wall hanging frame, reduces the cost and also keeps the integrity of the integral shape of the product under the condition of meeting the heat dissipation capacity of the product.
Example two
The water-cooling three-level frequency conversion device of the embodiment further comprises a current or voltage detection device 8;
the current flows in from the interfaces 41, 42 and 43 of the second positive and negative laminated copper bar 4, the current flows through the capacitor assembly, then flows into the first power device 5, then flows into the interfaces 121 and 122 of the second power device 12 through the first positive and negative laminated copper bar 7, alternating current is formed through the second power device 12, the generated alternating current is gathered together through the copper bar 13 and the copper bar 14, and the alternating current is output through the current or voltage detection device 8;
corresponding to the above current flow direction, the current can also flow in the opposite direction without changing the structure layout.
EXAMPLE III
In this embodiment, capacitor module 3's top is provided with radiator fan 6 that is used for taking away the heat in the capacitor module cavity, and cold air gets into from the capacitor module below, and cold air takes away the capacitor heat through radiator fan 6 through the capacitor module 3 cavity that casing 11 encloses finally.
Example four
The water-cooling plate radiator 2 is provided with water inlets and water outlets 10 and 11 for taking away heat of the power device through inflow circulating liquid, and the heat of the power device on the water-cooling plate radiator 2 is taken away through the inflow circulating liquid through the water inlets and the water outlets 10 and 11.
EXAMPLE five
The ports 51 and 52 of the first power device are connected in parallel to the port 121 of the second power device 12 on the other side of the water-cooling plate radiator 2 through the first positive and negative laminated copper bars 7; the first power device ports 53 and 54 are connected in parallel to the port 122 of the second power device 12 on the other side of the water-cooled plate radiator 2 through the first positive-negative laminated copper bar 7.
It should be understood that the above is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent flow transformations made by the present specification and drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a three level frequency conversion device of water-cooling which characterized in that: the water cooling plate radiator comprises a water cooling plate radiator, a first power device and a second power device are installed on two sides of the water cooling plate radiator respectively, a capacitor assembly is arranged on one side of the water cooling plate radiator, the first power device and the second power device are connected through a first positive and negative laminated copper bar, the capacitor assembly is connected with the first power device through a second positive and negative laminated copper bar, and the capacitor assembly and the power devices are cooled through an independent cooling mode.
2. The water-cooled three-level frequency conversion device according to claim 1, wherein the capacitor assembly dissipates heat in an air-cooled heat dissipation manner, and the first power device and the second power device dissipate heat in a water-cooled heat dissipation manner.
3. The water-cooled three-level frequency conversion device according to claim 1, wherein the capacitor assembly is arranged on the side of the water-cooled plate radiator opposite to the water inlet and outlet of the water-cooled plate, and the electrode side of the capacitor assembly is arranged on the side of the water-cooled plate radiator on which the first power device is arranged.
4. The water-cooled three-level frequency conversion device according to claim 1, wherein the first positive-negative laminated copper bar and the second positive-negative laminated copper bar are respectively provided with an interface for current transmission, and the current of the second positive-negative laminated copper bar flows into the first power device through the interface of the second positive-negative laminated copper bar and the capacitor assembly; the current flowing into the first power device enters the second power device through the interface of the first positive and negative laminated copper bar to form alternating current.
5. The water-cooled three-level frequency conversion device according to claim 4, further comprising a current or voltage detection device, wherein the alternating current is output through the current or voltage detection device.
6. The water-cooled three-level frequency conversion device according to claim 1, wherein the second positive-negative laminated copper bar is disposed between the capacitor assembly and the first power device.
7. The water-cooled three-level frequency conversion device according to claim 1, wherein a heat dissipation fan for taking away heat in the cavity of the capacitor assembly is arranged above the capacitor assembly.
8. The water-cooled three-level inverter device according to claim 1, wherein the water-cooled plate heat sink is provided with a water inlet and a water outlet for taking away heat of the power device through an inflow circulating liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122414731.9U CN216291945U (en) | 2021-10-06 | 2021-10-06 | Water-cooling three-level frequency conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122414731.9U CN216291945U (en) | 2021-10-06 | 2021-10-06 | Water-cooling three-level frequency conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216291945U true CN216291945U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122414731.9U Active CN216291945U (en) | 2021-10-06 | 2021-10-06 | Water-cooling three-level frequency conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216291945U (en) |
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2021
- 2021-10-06 CN CN202122414731.9U patent/CN216291945U/en active Active
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