CN211238879U - Heat radiation structure of photovoltaic power cabinet - Google Patents
Heat radiation structure of photovoltaic power cabinet Download PDFInfo
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- CN211238879U CN211238879U CN201922342168.1U CN201922342168U CN211238879U CN 211238879 U CN211238879 U CN 211238879U CN 201922342168 U CN201922342168 U CN 201922342168U CN 211238879 U CN211238879 U CN 211238879U
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- heat dissipation
- fan
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- cabinet body
- air inlet
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Abstract
The utility model discloses a heat dissipation structure of a photovoltaic power cabinet, which comprises a cabinet body, a heat dissipation box, a heat dissipation fan and a power supply assembly; the power supply assembly is arranged in the cabinet body and comprises a photovoltaic rectification unit, a power distribution unit and a monitoring unit; the photovoltaic power cabinet comprises a cabinet body and a photovoltaic rectifying unit, wherein the cabinet body comprises a front cabinet door, a rear plate, a left side plate and a right side plate; an air inlet is formed in the first side plate of the cabinet body, and an air outlet is formed in the second side plate; the heat dissipation fan comprises a main fan and a photovoltaic rectification unit heat dissipation fan, and the main fan is arranged near an air outlet of the cabinet body; the heat dissipation box comprises an air inlet and an air outlet, the air inlet of the heat dissipation box is close to the air inlet of the cabinet body, the air outlet of the heat dissipation box is close to the main fan, and the photovoltaic rectification unit heat dissipation fan is installed at the air inlet of the heat dissipation box. The utility model discloses occupation space is little, can use in the photovoltaic hanging power.
Description
[ technical field ]
The utility model relates to a photovoltaic power especially relates to a heat radiation structure of photovoltaic power cabinet.
[ background art ]
The photovoltaic wall-mounted power supply is usually used for converting photovoltaic high-voltage direct current into low-voltage direct current to be transmitted to electric equipment and is mainly used for occasions with power supply difficulty and inconvenience in using alternating current. Photovoltaic power supply wall-mounted unit converts solar photovoltaic power into low pressure DC power supply, and photovoltaic power supply wall-mounted rack includes the cabinet body and installs the power supply unit in cabinet internal portion, and power supply unit includes photovoltaic rectification unit, distribution unit, monitoring unit etc. wherein photovoltaic rectification unit is power components and parts, and the heat that produces will be higher than the heat that other power supply parts produced at the during operation, and the heat yield is high, needs the forced heat dissipation.
The utility model discloses a patent No. 201120511280.4's utility model discloses a heat radiation structure of photovoltaic grid-connected inverter power cabinet, including installing at internal power module and the transformer of cabinet, power module is located the upper strata, and the transformer is located the lower floor, and power module installs on the radiator, and centrifugal fan is installed to the radiator bottom, and centrifugal fan is through seting up air intake one and the external portion of cabinet on the cabinet body intercommunication, has seted up the air outlet on the top of the cabinet body and the corresponding position with the radiator, installs axial fan on the cabinet body corresponding with the transformer position, has seted up air intake two on the opposite side cabinet body corresponding with axial fan.
The utility model discloses a power module's heat dissipation wind channel and transformer's heat dissipation wind channel are independent separately, and heat radiation structure occupation space is big, is not convenient for use in the photovoltaic hanging power.
[ summary of the invention ]
The to-be-solved technical problem of the utility model is to provide a heat radiation structure of photovoltaic power cabinet that occupation space is little.
In order to solve the technical problem, the utility model adopts the technical scheme that the heat dissipation structure of the photovoltaic power cabinet comprises a cabinet body, a heat dissipation box, a heat dissipation fan and a power supply assembly; the power supply assembly is arranged in the cabinet body and comprises a photovoltaic rectification unit, a power distribution unit and a monitoring unit; the photovoltaic power cabinet comprises a cabinet body and a photovoltaic rectifying unit, wherein the cabinet body comprises a front cabinet door, a rear plate, a left side plate and a right side plate; an air inlet is formed in the first side plate of the cabinet body, and an air outlet is formed in the second side plate; the heat dissipation fan comprises a main fan and a photovoltaic rectification unit heat dissipation fan, and the main fan is arranged near an air outlet of the cabinet body; the heat dissipation box comprises an air inlet and an air outlet, the air inlet of the heat dissipation box is close to the air inlet of the cabinet body, the air outlet of the heat dissipation box is close to the main fan, and the photovoltaic rectification unit heat dissipation fan is installed at the air inlet of the heat dissipation box.
The heat dissipation structure is characterized in that the heat dissipation box is fixed on the inner side of the front cabinet door, and the power distribution unit and the monitoring unit are installed on the rear plate of the cabinet body.
The heat radiation structure comprises two inner cover plates, wherein the first inner cover plate is arranged on the inner side of the air inlet and forms an air inlet isolation cavity with the first side plate. The first inner cover plate comprises a first air duct opening; the second inner cover plate is arranged on the inner side of the air outlet and forms an air outlet isolation cavity with the second side plate. The second inner cover plate comprises a second air duct opening; the air inlet of the heat dissipation box is close to the first air duct opening, and the main fan is installed at the second air duct opening.
The heat radiation structure comprises a kick type temperature controller, the kick type temperature controller is arranged in the air outlet isolation cavity or fixed on the second inner cover plate, and the heat radiation fan is connected with the fan power supply through the kick type temperature controller.
In the heat dissipation structure, the heat dissipation fan of the photovoltaic rectification unit is arranged on the inner side of the air inlet of the heat dissipation box.
Above heat radiation structure, waterproof stripe is installed at the edge of preceding cabinet door.
The utility model discloses a keep apart through the heat dissipation case between other power supply parts of the internal portion of photovoltaic rectification unit and cabinet, can effectively reduce the interior power supply part heat of cabinet and get into the heat dissipation case, influence photovoltaic rectification unit, guarantee the normal heat dissipation of photovoltaic rectification module, air intake and air outlet are shared on the cabinet body of photovoltaic rectification unit and other power supply parts, can reduce the volume of rack, and this heat radiation structure can use in the photovoltaic hanging power cabinet.
[ description of the drawings ]
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a front view of the photovoltaic power cabinet of the embodiment of the present invention.
Fig. 2 is a sectional view taken along the line a in fig. 1.
Fig. 3 is a sectional view taken along line B in fig. 1.
Fig. 4 is the utility model discloses a front view that cabinet door was opened before photovoltaic power supply cabinet.
Fig. 5 is the utility model discloses a perspective view that cabinet door was opened before photovoltaic power supply cabinet.
Fig. 6 is the radiating air current of photovoltaic power cabinet of the embodiment of the utility model moves towards the schematic diagram.
[ detailed description of the invention ]
The embodiment of the utility model provides a photovoltaic power cabinet's structure is as shown in fig. 1 to fig. 6, including the cabinet body 100, heat dissipation case 8, radiator fan and power supply unit.
The power supply assembly comprises a photovoltaic rectifying unit, a power distribution unit and a monitoring unit. The radiator fan includes a main fan 7 and a photovoltaic rectification unit radiator fan 9.
The photovoltaic power cabinet body 100 comprises a front cabinet door 1, a rear plate 2, a right side plate 3 and two inner cover plates 5 and 6. Waterproof rubber strips are arranged at the edge of the front cabinet door 1. The three inlet and outlet wire holes that outside cable passes through cabinet body lower part setting come in and go out, and the plug is moulded to the entrance hole adoption circular cone type, can cut the plug according to the cable thickness when in-service use, and guarantee leakproofness that can be better prevents effectively that outside dust from getting into the cabinet internally.
The heat dissipation box 8 is installed inside the cabinet body 100 and fixed inside the front cabinet door 1, or is made into a whole with the front cabinet door 1. The photovoltaic rectification of the photovoltaic rectification unit is arranged in the heat dissipation box 8. The switches 11, lightning protection devices 12 and distribution lines 13 of the distribution unit and the components of the monitoring unit are mounted on the back plate 2. The power distribution unit can provide circuit switch control and circuit protection for the power consumption part of power rack input connection, and the branch line row is provided with binding screw for photovoltaic module output load, is provided with wiring position on the branch line row.
An air inlet 301 is arranged on the right side plate 3 of the cabinet body 100, and an air outlet 401 is arranged on the left side plate 4. The inner cover plate 5 is arranged inside the air inlet 301, and forms an air inlet isolation cavity 501 with the right side plate 3. The inner cover plate 5 is provided with an air duct opening 502. The inner cover plate 6 is disposed inside the air outlet 401, and forms an air outlet isolation chamber 601 with the left side plate 4. The inner shroud 6 has an air duct opening 602.
The heat dissipation box 8 is provided with an air inlet 801 and an air outlet 802, the air inlet 801 of the heat dissipation box 8 is close to the air duct opening 502 of the inner cover plate 5, and the photovoltaic rectification unit heat dissipation fan 9 is installed on the inner side of the air inlet 801 of the heat dissipation box 8.
The main fan 7 is installed on the air duct opening 602 of the inner shroud 6, and the air outlet 802 of the heat dissipation case 8 is close to the main fan 7.
The air outlet 802 of the heat dissipation box 8 is connected with the main fan 7 and is approximately isolated from other parts, and the air exhausted by the main fan 7 cannot enter the cabinet body again to influence the heat dissipation effect of other parts.
The kick type temperature controller 14 is arranged in the air outlet isolation cavity 601 or fixed on the inner side of the second inner cover plate 6, and the main fan 7 and the photovoltaic rectification unit heat radiation fan 9 are connected with a fan power supply through the kick type temperature controller 14. When the temperature in the cabinet is higher than the set value of temperature control, the kick type temperature controller 14 is switched on, and the fan in the cabinet body dissipates heat to work, so that the temperature in the cabinet body can be effectively reduced, and the internal power supply components can be ensured to normally operate. When the temperature in the cabinet is lower than the set value of temperature control, the kick type temperature controller 14 cuts off the power supply circuit, the heat radiation fan in the cabinet does not work, and the operation power consumption and the noise are reduced. Compared with a temperature control circuit, the kick type temperature controller can save cost and is convenient to install and use.
The utility model discloses keep apart through the heat dissipation case between the photovoltaic rectification unit of above embodiment and the other power supply parts of the internal portion of cabinet, the heat that can effectively reduce other power supply parts in the cabinet gets into the heat dissipation case, influences the heat dissipation of photovoltaic rectification unit, guarantees that photovoltaic rectifier module normally works, and photovoltaic rectification unit and other power supply parts share air intake and air outlet on the cabinet body, can reduce the volume of rack.
Claims (6)
1. A heat dissipation structure of a photovoltaic power cabinet comprises a cabinet body, a heat dissipation fan and a power supply assembly, wherein the power supply assembly is installed in the cabinet body and comprises a photovoltaic rectification unit, a power distribution unit and a monitoring unit; the photovoltaic power cabinet is characterized by comprising a heat dissipation box, wherein the heat dissipation box is arranged inside the cabinet body, and a photovoltaic rectification unit is arranged in the heat dissipation box; an air inlet is formed in the first side plate of the cabinet body, and an air outlet is formed in the second side plate; the heat dissipation fan comprises a main fan and a photovoltaic rectification unit heat dissipation fan, and the main fan is arranged near an air outlet of the cabinet body; the heat dissipation box comprises an air inlet and an air outlet, the air inlet of the heat dissipation box is close to the air inlet of the cabinet body, the air outlet of the heat dissipation box is close to the main fan, and the photovoltaic rectification unit heat dissipation fan is installed at the air inlet of the heat dissipation box.
2. The heat dissipating structure of claim 1, wherein the heat dissipating box is fixed to an inner side of the front cabinet door, and the power distribution unit and the monitoring unit are mounted on a rear plate of the cabinet body.
3. The heat dissipating structure of claim 1, wherein the cabinet includes two inner panels, a first inner panel disposed inside the air inlet and forming an air inlet isolation chamber with the first side panel; the first inner cover plate comprises a first air duct opening; the second inner cover plate is arranged at the inner side of the air outlet and forms an air outlet isolation cavity with the second side plate; the second inner cover plate comprises a second air duct opening; the air inlet of the heat dissipation box is close to the first air duct opening, and the main fan is installed at the second air duct opening.
4. The heat dissipating structure of claim 3, further comprising a snap-action thermostat disposed in the air outlet isolation chamber or fixed to the second inner cover plate, wherein the heat dissipating fan is connected to a fan power source via the snap-action thermostat.
5. The heat dissipating structure of claim 1, wherein the photovoltaic rectification unit heat dissipating fan is installed inside an air inlet of the heat dissipating box.
6. The heat dissipation structure of claim 1, wherein a waterproof strip is mounted on an edge of the front cabinet door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922342168.1U CN211238879U (en) | 2019-12-24 | 2019-12-24 | Heat radiation structure of photovoltaic power cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922342168.1U CN211238879U (en) | 2019-12-24 | 2019-12-24 | Heat radiation structure of photovoltaic power cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN211238879U true CN211238879U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922342168.1U Active CN211238879U (en) | 2019-12-24 | 2019-12-24 | Heat radiation structure of photovoltaic power cabinet |
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| CN (1) | CN211238879U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113675745A (en) * | 2021-08-25 | 2021-11-19 | 安徽富煌电力装备科技有限公司 | Low-energy-consumption distributed photovoltaic grid-connected cabinet |
| CN115208169A (en) * | 2022-09-13 | 2022-10-18 | 广州东芝白云菱机电力电子有限公司 | Frequency converter fault protection device and frequency converter |
-
2019
- 2019-12-24 CN CN201922342168.1U patent/CN211238879U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113675745A (en) * | 2021-08-25 | 2021-11-19 | 安徽富煌电力装备科技有限公司 | Low-energy-consumption distributed photovoltaic grid-connected cabinet |
| CN113675745B (en) * | 2021-08-25 | 2023-12-19 | 安徽富煌电力装备科技有限公司 | Low-energy-consumption distributed photovoltaic grid-connected cabinet |
| CN115208169A (en) * | 2022-09-13 | 2022-10-18 | 广州东芝白云菱机电力电子有限公司 | Frequency converter fault protection device and frequency converter |
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