Auxiliary cooling mechanism for full-power wind power grid-connected inverter

Abstract

The utility model provides an auxiliary cooling mechanism for a full-power wind power grid-connected inverter. The auxiliary cooling mechanism for the full-power wind power grid-connected inverter comprises a machine box, the top of the machine box is fixedly connected with a cabinet body, and the bottom of an inner cavity of the machine box is fixedly connected with a water tank. According to the auxiliary cooling mechanism for the full-power wind power grid-connected inverter provided by the utility model, the water tank is arranged, and when the temperature of cooling liquid in the water tank rises due to long-time cooling of the inverter, the first motor is started, so that the first motor can drive the first fan blades to rotate quickly; according to the invention, air in the case can be quickly discharged out of the case, namely, heat in the case is quickly discharged out, so that the discharge speed of heat in the water tank is accelerated, namely, the cooling speed of the cooling liquid is improved, and the problem that the cooling efficiency of the inverter is reduced when the temperature of the cooling liquid is increased is avoided; and therefore, the stability of the cooling mechanism during long-time working is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary cooling mechanisms, in particular to an auxiliary cooling mechanism for a full-power wind grid-connected inverter. Background Technique

[0002] Photovoltaic power generation systems are mainly DC systems, that is, the electric energy generated by solar cells is used to charge batteries, and the batteries directly supply power to loads. For example, the solar user lighting systems used more in the northwest region of China and the power supply systems of microwave stations far from the power grid are both DC systems. Through an inverter, DC electric energy (batteries, accumulators) can be converted into alternating current.

[0003] In the existing technology, such as "A heat dissipation device for a photovoltaic grid-connected inverter" with the Chinese authorization announcement number: CN217010713U, which includes an outer box body. Installation through grooves are opened on the side wall of the outer box body, and installation screw holes are opened along the outside of the installation through grooves on the side wall of the outer box body. An installation frame is inserted into the installation through grooves, and an installation abutment plate that abuts against the outer side wall of the outer box body is fixed on the outside of the installation frame. Installation bolts that cooperate with the installation screw holes are inserted at the corners of the installation abutment plate; an adsorption frame is fixed on the inner end surface of the inner end of the installation frame. A shielding frame is detachably installed at the port of the adsorption frame. Adsorption partition nets are embedded on the side walls of the shielding frame. A cooling elbow pipe is installed in the inner cavity of the installation frame, and a heat dissipation fan is installed at the outer port of the installation frame. A support frame is arranged at the port of the installation frame; the heat dissipation device for the photovoltaic grid-connected inverter designed by the utility model has a reasonable structure design, strong practicability, and excellent market promotion value.

[0004] In the existing technology, when cooling and reducing the temperature of the inverter, due to the fact that the cooling water is prone to temperature rise during long-term cyclic operation, the problem that the cooling effect of the continuously temperature-rising cooling water is reduced, resulting in the problem that the heat dissipation effect of the inverter is reduced.

[0005] Therefore, it is necessary to provide an auxiliary cooling mechanism for a full-power wind grid-connected inverter to solve the above technical problems. Content of the Utility Model

[0006] The utility model provides an auxiliary cooling mechanism for a full-power wind grid-connected inverter, which solves the problem that the cooling effect of the cooling water is reduced due to the fact that the cooling water is prone to temperature rise during long-term cyclic operation, resulting in the problem that the heat dissipation effect of the inverter is reduced.

[0007] To solve the above technical problems, an auxiliary cooling mechanism for a full-power wind grid-connected inverter provided by the present utility model includes a chassis. A cabinet is fixedly connected to the top of the chassis. A water tank is fixedly connected to the bottom of the inner cavity of the chassis. A delivery pump is fixedly installed at the bottom of the inner cavity of the chassis. A cooling pipe is fixedly sleeved on the top of the delivery pump. An exhaust hood is fixedly sleeved on the side of the inner wall of the chassis. A first motor is fixedly installed inside the exhaust hood. A first fan blade is fixedly sleeved on the output shaft of the first motor. Heat-conducting sheets are fixedly connected to the outside of the water tank. A support plate is fixedly sleeved inside the cabinet. Exhaust grooves are formed in the top of the support plate. An air delivery mechanism is arranged on the top of the chassis. A moisture-proof mechanism is arranged on the side of the inner wall of the cabinet. A filter hood is fixedly sleeved on the side of the chassis. A moving mechanism is arranged at the bottom of the chassis.

[0008] Preferably, the water tank is located in the exact middle of the inner cavity of the chassis, and the material of the water tank is metal aluminum material.

[0009] Preferably, one end of the cooling pipe is fixedly sleeved on the top of the water tank, and the material of the cooling pipe is metal copper material.

[0010] Preferably, the material of the heat-conducting sheets is metal aluminum material, and the number of the heat-conducting sheets is several. The several heat-conducting sheets are evenly distributed on the outside of the water tank.

[0011] Preferably, the air delivery mechanism includes a ventilation hood. The ventilation hood is fixedly sleeved on the top of the chassis. A second motor is fixedly installed inside the ventilation hood. A second fan blade is fixedly sleeved on the output shaft of the second motor.

[0012] Preferably, the moisture-proof mechanism includes a limit hood. The limit hood is fixedly connected to the side of the inner wall of the chassis. An adsorption plate is movably sleeved inside the limit hood. The material of the adsorption plate is activated carbon material.

[0013] Preferably, the material of the filter hood is artificial fiber material, and the filter hood is located in the exact middle of the side of the chassis.

[0014] Preferably, the moving mechanism includes support columns. The support columns are fixedly connected to the bottom of the chassis. Slide wheels are installed at the bottoms of the support columns.

[0015] Compared with the related art, an auxiliary cooling mechanism for a full-power wind grid-connected inverter provided by the present utility model has the following beneficial effects:

[0016] The utility model provides an auxiliary cooling mechanism for a full-power wind power grid-connected inverter. By setting a water tank, when the temperature of the coolant inside the water tank rises due to long-term cooling of the inverter, the first motor is started, so that the first motor can drive the first fan blade to rotate rapidly, promoting the air inside the chassis to be quickly discharged to the outside of the chassis, that is, driving the heat inside the chassis to be quickly discharged to the outside, thus accelerating the heat discharge speed inside the water tank, that is, increasing the cooling speed of the coolant, and further avoiding the problem that the cooling efficiency of the inverter decreases when the temperature of the coolant rises, thereby greatly improving the stability of the cooling mechanism during long-term operation;

[0017] By setting a moisture-proof mechanism, when installing the inverter, the adsorption plate is sleeved inside the limit cover. At this time, the adsorption plate can absorb the moisture inside the cabinet, thereby improving the dryness of the flowing air inside the cabinet, that is, achieving the moisture-proof effect of the inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic structural diagram of a preferred embodiment of an auxiliary cooling mechanism for a full-power wind power grid-connected inverter provided by the utility model;

[0019] Figure 2 is Figure 1 the front view of an auxiliary cooling mechanism for a full-power wind power grid-connected inverter shown;

[0020] Figure 3 is Figure 1 the front view of the water tank in an auxiliary cooling mechanism for a full-power wind power grid-connected inverter shown;

[0021] Figure 4 is Figure 1 the bottom view of the air delivery mechanism in an auxiliary cooling mechanism for a full-power wind power grid-connected inverter shown.

[0022] Reference numerals in the figure: 1, chassis; 2, cabinet; 3, water tank; 4, delivery pump; 5, cooling pipe; 6, exhaust hood; 7, first motor; 8, first fan blade; 9, heat conduction sheet; 10, support plate; 11, exhaust slot; 12, air delivery mechanism; 121, ventilation hood; 122, second motor; 123, second fan blade; 13, moisture-proof mechanism; 131, limit cover; 132, adsorption plate; 14, filter cover; 15, moving mechanism; 151, support column; 152, sliding wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described below with reference to the drawings and embodiments.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 ,Figure 4 , wherein, Figure 1 is a schematic structural diagram of a preferred embodiment of an auxiliary cooling mechanism for a full-power wind power grid-connected inverter provided by the present utility model; Figure 2 is Figure 1 a front view of an auxiliary cooling mechanism for a full-power wind power grid-connected inverter shown in the figure; Figure 3 is Figure 1 a front view of a water tank in an auxiliary cooling mechanism for a full-power wind power grid-connected inverter shown in the figure; Figure 4 is Figure 1 a bottom view of an air delivery mechanism in an auxiliary cooling mechanism for a full-power wind power grid-connected inverter shown in the figure. An auxiliary cooling mechanism for a full-power wind power grid-connected inverter includes a chassis 1. A cabinet 2 is fixedly connected to the top of the chassis 1. A water tank 3 is fixedly connected to the bottom of the inner cavity of the chassis 1. A delivery pump 4 is fixedly installed at the bottom of the inner cavity of the chassis 1. A cooling pipe 5 is fixedly sleeved on the top of the delivery pump 4. An exhaust hood 6 is fixedly sleeved on the side of the inner wall of the chassis 1. A first motor 7 is fixedly installed inside the exhaust hood 6. A first fan blade 8 is fixedly sleeved on the output shaft of the first motor 7. A heat conducting sheet 9 is fixedly connected to the outside of the water tank 3. A support plate 10 is fixedly sleeved inside the cabinet 2. An exhaust groove 11 is formed in the top of the support plate 10. An air delivery mechanism 12 is arranged on the top of the chassis 1. A moisture-proof mechanism 13 is arranged on the side of the inner wall of the cabinet 2. A filter hood 14 is fixedly sleeved on the side of the chassis 1. A moving mechanism 15 is arranged at the bottom of the chassis 1.

[0025] The water tank 3 is located in the exact middle of the inner cavity of the chassis 1, and the material of the water tank 3 is metal aluminum material; by setting the water tank 3, when the temperature of the coolant inside the water tank 3 rises due to long-term cooling and temperature reduction of the inverter, start the first motor 7, so that the first motor 7 drives the first fan blade 8 to rotate rapidly, promoting the air inside the chassis 1 to be quickly discharged to the outside of the chassis 1, that is, driving the heat inside the chassis 1 to be quickly discharged to the outside, thereby accelerating the heat discharge speed inside the water tank 3, that is, increasing the cooling speed of the coolant, and further avoiding the problem of reduced cooling efficiency of the inverter when the temperature of the coolant rises, thus greatly improving the stability of the cooling mechanism during long-term operation.

[0026] One end of the cooling pipe 5 is fixedly sleeved on the top of the water tank 3, and the material of the cooling pipe 5 is metal copper material; by setting the cooling pipe 5, when cooling and temperature reduction are carried out inside the cabinet 2, start the delivery pump 4, so that the delivery pump 4 can absorb the coolant inside the water tank 3 and then transport it to the inside of the cabinet 2 through the cooling pipe 5, thereby increasing the circulating flow speed of the coolant, that is, increasing the cooling speed inside the cabinet 2.

[0027] The material of the heat-conducting fin 9 is aluminum metal, and the number of heat-conducting fins 9 is several. The several heat-conducting fins 9 are evenly distributed outside the water tank 3. By setting the heat-conducting fins 9, when the temperature of the coolant inside the water tank 3 is relatively high, the heat inside the coolant can be evenly conducted to the inside of the heat-conducting fins 9 through the water tank 3, thereby increasing the heat dissipation area of the water tank 3, that is, increasing the heat dissipation speed of the water tank 3, and thus increasing the heat dissipation speed of the coolant.

[0028] The air delivery mechanism 12 includes a ventilation hood 121. The ventilation hood 121 is fixedly sleeved on the top of the chassis 1. A second motor 122 is fixedly installed inside the ventilation hood 121. A second fan blade 123 is fixedly sleeved on the output shaft of the second motor 122. By setting the air delivery mechanism 12, when cooling down the cabinet 2, the second motor 122 is started, so that the second motor 122 can drive the second fan blade 123 to rotate rapidly, thereby driving the low-temperature air at the bottom of the inner cavity of the cabinet 2 to be quickly delivered to the inside of the cabinet 2, and then increasing the flow speed of the low-temperature air, that is, increasing the cooling speed inside the cabinet 2.

[0029] The moisture-proof mechanism 13 includes a limiting cover 131. The limiting cover 131 is fixedly connected to the side of the inner wall of the chassis 1. An adsorption plate 132 is movably sleeved inside the limiting cover 131. The material of the adsorption plate 132 is activated carbon. By setting the moisture-proof mechanism 13, when installing the inverter, the adsorption plate 132 is sleeved inside the limiting cover 131. At this time, the adsorption plate 132 can absorb the moisture inside the cabinet 2, and then increase the dryness of the flowing air inside the cabinet 2, that is, achieve the moisture-proof effect of the inverter.

[0030] The material of the filter cover 14 is artificial fiber, and the filter cover 14 is located in the exact middle of the side of the chassis 1. By setting the filter cover 14, when dissipating heat inside the chassis 1, the filter cover 14 can filter the air entering the inside of the chassis 1, so that the dust inside the air is blocked outside the chassis 1, thereby increasing the cleanliness inside the chassis 1, that is, increasing the cleanliness inside the cooling mechanism.

[0031] The moving mechanism 15 includes a support column 151. The support column 151 is fixedly connected to the bottom of the chassis 1. A sliding wheel 152 is installed at the bottom of the support column 151. By setting the moving mechanism 15, when moving and transporting the cooling mechanism, the chassis 1 is pushed, so that the sliding wheel 152 can drive the chassis 1 to move horizontally through the support column 151, thereby achieving the horizontal movement of the cabinet 2, and thus bringing convenience to the adjustment of the working positions of the inverter and the cooling mechanism.

[0032] The working principle of an auxiliary cooling mechanism for a full-power wind power grid-connected inverter provided by the present invention is as follows:

[0033] Step 1: First, when the temperature of the coolant inside the water tank 3 rises due to long-term inverter cooling, start the first motor 7, so that the first motor 7 drives the first fan blade 8 to rotate rapidly, promoting the rapid discharge of the air inside the chassis 1 to the outside of the chassis 1, that is, driving the rapid discharge of the heat inside the chassis 1 to the outside, thereby accelerating the heat discharge speed inside the water tank 3, that is, increasing the cooling speed of the coolant, and further avoiding the problem of reduced inverter cooling efficiency when the coolant temperature rises, thus greatly improving the stability of the cooling mechanism during long-term operation. When cooling the inside of the cabinet 2, start the delivery pump 4, so that the delivery pump 4 absorbs the coolant inside the water tank 3 and then transports it to the inside of the cabinet 2 through the cooling pipe 5, thereby increasing the circulating flow speed of the coolant, that is, increasing the cooling speed inside the cabinet 2. When the temperature of the coolant inside the water tank 3 is relatively high, the heat inside the coolant is evenly conducted to the heat conducting sheet 9 through the water tank 3, thereby increasing the heat dissipation area of the water tank 3, that is, increasing the heat dissipation speed of the water tank 3, and thus increasing the heat dissipation speed of the coolant. When cooling the cabinet 2, start the second motor 122, so that the second motor 122 drives the second fan blade 123 to rotate rapidly, thereby driving the rapid transportation of the low-temperature air at the bottom of the inner cavity of the cabinet 2 to the inside of the cabinet 2, and further increasing the flow speed of the low-temperature air, that is, increasing the cooling speed inside the cabinet 2;

[0034] Step 2: When installing the inverter, sleeve the adsorption plate 132 inside the limit cover 131. At this time, the adsorption plate 132 absorbs the moisture inside the cabinet 2, thereby increasing the dryness of the flowing air inside the cabinet 2, that is, achieving the moisture-proof effect of the inverter. When dissipating heat inside the chassis 1, the filter cover 14 filters the air entering the inside of the chassis 1, blocking the dust inside the air to the outside of the chassis 1, thereby increasing the cleanliness inside the chassis 1, that is, increasing the cleanliness inside the cooling mechanism. When moving and transporting the cooling mechanism, push the chassis 1, so that the sliding wheel 152 drives the chassis 1 to move horizontally through the support column 151, thereby achieving the horizontal movement of the cabinet 2, and further facilitating the adjustment of the working positions of the inverter and the cooling mechanism.

[0035] Compared with the related technologies, an auxiliary cooling mechanism for a full-power wind power grid-connected inverter provided by the present utility model has the following beneficial effects:

[0036] By setting up the water tank 3, when the temperature of the coolant inside the water tank 3 rises due to the long-term cooling of the inverter, the first motor 7 is started, so that the first motor 7 can drive the first fan blade 8 to rotate rapidly, promoting the air inside the chassis 1 to be quickly discharged to the outside of the chassis 1, that is, driving the heat inside the chassis 1 to be quickly discharged to the outside, thus accelerating the heat discharge speed inside the water tank 3, that is, increasing the cooling speed of the coolant, and further avoiding the problem of reduced inverter cooling efficiency when the coolant temperature rises, thereby greatly improving the stability of the cooling mechanism during long-term operation.

[0037] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An auxiliary cooling mechanism for a full-power wind power grid-connected inverter, comprising a chassis (1), characterized in that: The top of the chassis (1) is fixedly connected to a cabinet (2), the bottom of the inner cavity of the chassis (1) is fixedly connected to a water tank (3), the bottom of the inner cavity of the chassis (1) is fixedly installed with a delivery pump (4), the top of the delivery pump (4) is fixedly sleeved with a cooling pipe (5), the side of the inner wall of the chassis (1) is fixedly sleeved with an exhaust hood (6), a No. 1 motor (7) is fixedly installed inside the exhaust hood (6), a No. 1 fan blade (8) is fixedly sleeved on the output shaft of the No. 1 motor (7), a heat conducting sheet (9) is fixedly connected to the outside of the water tank (3), a support plate (10) is fixedly sleeved inside the cabinet (2), an exhaust groove (11) is provided on the top of the support plate (10), an air delivery mechanism (12) is provided on the top of the chassis (1), a moisture-proof mechanism (13) is provided on the side of the inner wall of the cabinet (2), a filter cover (14) is fixedly sleeved on the side of the chassis (1), and a moving mechanism (15) is provided on the bottom of the chassis (1).

2. The auxiliary cooling mechanism for a full-power wind power grid-connected inverter according to claim 1, characterized in that: The water tank (3) is located in the middle of the inner cavity of the chassis (1), and the material of the water tank (3) is metal aluminum material.

3. The auxiliary cooling mechanism for a full-power wind grid-connected inverter according to claim 1, characterized in that: One end of the cooling pipe (5) is fixedly sleeved on the top of the water tank (3), and the cooling pipe (5) is made of metallic copper material.

4. The auxiliary cooling mechanism for a full-power wind grid-connected inverter according to claim 1, characterized in that: The material of the heat conducting sheet (9) is a metal aluminum material, and there are a plurality of heat conducting sheets (9), and the plurality of heat conducting sheets (9) are evenly distributed outside the water tank (3).

5. The auxiliary cooling mechanism for a full-power wind grid-connected inverter according to claim 1, characterized in that: The air delivery mechanism (12) comprises a ventilation hood (121), the ventilation hood (121) being fixedly sleeved on the top of the chassis (1), a second motor (122) being fixedly mounted inside the ventilation hood (121), and a second fan blade (123) being fixedly sleeved on an output shaft of the second motor (122).

6. The auxiliary cooling mechanism for a full-power wind grid-connected inverter according to claim 1, characterized in that: The moisture-proof mechanism (13) comprises a limiting cover (131), the limiting cover (131) being fixedly connected to the side of the inner wall of the chassis (1), the inner part of the limiting cover (131) being movably sleeved with an adsorption plate (132), the material of the adsorption plate (132) being an activated carbon material.

7. The auxiliary cooling mechanism for a full-power wind grid-connected inverter according to claim 1, characterized in that: The filter cover (14) is made of a synthetic fiber material, and the filter cover (14) is located in the middle of the side of the chassis (1).

8. The auxiliary cooling mechanism for a full-power wind grid-connected inverter according to claim 1, characterized in that: The moving mechanism (15) comprises a support column (151), wherein the support column (151) is fixedly connected to the bottom of the chassis (1), and a sliding wheel (152) is installed at the bottom of the support column (151).

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