Water-cooling heat dissipation device for photovoltaic inverter

Abstract

The utility model discloses a water cooling heat radiation device for a photovoltaic inverter, which comprises a heat radiation box body and a water cooling heat radiator, the water cooling heat radiator is fixedly arranged in the heat radiation box body, the inner wall of the heat radiation box body is provided with a plurality of groups of heat radiation fans, and the side surface of the heat radiation box body is provided with a plurality of groups of dust screens corresponding to the heat radiation fans. Moving plates are arranged on the two sides of the heat dissipation box body in a sliding manner; a cleaning assembly used for driving a moving plate and a cleaning brush to move up and down to clean the dustproof net is arranged on the side face of the heat dissipation box body, a double-head motor is started to drive a rotating shaft to rotate, the rotating shaft drives a special-shaped fluted disc to rotate through a special-shaped gear, then a lead screw is driven to rotate, and the lead screw drives a clamping protruding block to move up and down. The cleaning brushes are driven to move up and down along the side face of the heat dissipation box body, so that dust on the surfaces of the dustproof net and the heat dissipation holes is cleaned into the collection box through the cleaning brushes, normal heat dissipation of the dustproof net and the heat dissipation holes is guaranteed, and damage caused by too high temperature of the photovoltaic inverter is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic inverter heat dissipation technical field, concretely is a photovoltaic inverter water cooling heat sink. BACKGROUND

[0002] Photovoltaic inverter can convert the variable DC voltage generated by photovoltaic solar panel into the inverter of commercial power frequency AC power, can feedback back commercial power transmission system, or is for off-grid power grid use. Photovoltaic inverter is one of important system balances in photovoltaic array system, can cooperate with the equipment of general AC power supply and use, and water cooling radiator is mainly divided into two types: active water cooling and passive water cooling. In addition to having all accessories of water cooling radiator, active water cooling also needs to install cooling fan to assist heat dissipation, so as to improve the heat dissipation effect.

[0003] The existing photovoltaic inverter water cooling heat sink cannot clean the dust at the ventilation place, so that the dust blocks the heat dissipation hole or ventilation place, causes the high temperature inside the photovoltaic inverter to be unable to dissipate, thereby causing the temperature of the photovoltaic inverter to be too high. Therefore, we need to propose a photovoltaic inverter water cooling heat sink. UTILITY MODEL CONTENT

[0004] The utility model discloses a photovoltaic inverter water cooling heat sink, through the rotation of double -end motor drive rotating shaft, rotating shaft drives the rotation of the different sex gear disc through the different sex gear, and then drive the rotation of the lead screw, and the lead screw drives the up-down movement of the clamping lug, thereby drive a plurality of group cleaning brush moves up and down along the heat dissipation box body side, to solve the problem raised in the above background art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a photovoltaic inverter water cooling heat sink, including heat dissipation box body and water cooling radiator, the water cooling radiator is fixedly arranged in the heat dissipation box body, the heat dissipation box body inner wall is provided with a plurality of groups of heat dissipation fan, the heat dissipation box body side is provided with a plurality of groups of dust screen corresponding with heat dissipation fan, the both sides of heat dissipation box body are slidably provided with moving plate, and the side of the two groups moving plate close to heat dissipation box body is provided with a plurality of group cleaning brush.

[0006] The heat dissipation box body side is provided with cleaning assembly for driving the up-down movement of moving plate and cleaning brush to clean dust screen.

[0007] Preferably, the cleaning assembly includes a fixed frame, a clamping lug, a lead screw and a drive module, the fixed frame, the clamping lug and the lead screw are provided with two groups, the two groups of fixed frames are symmetrically arranged on both sides of the heat dissipation box body, the two groups of lead screws are rotatably arranged in the corresponding fixed frames, and the two groups of clamping lugs are threadedly connected to the outer arc surfaces of the corresponding lead screws, and the lower surfaces of the two groups of fixed frames are provided with collecting boxes.

[0008] Preferably, the driving module comprises a double-head motor, rotating shafts, female gears and female gear plates, the double-head motor is fixedly arranged on the upper surface of the heat dissipation box, the rotating shafts, the female gears and the female gear plates are all provided with two groups, the two groups of rotating shafts are respectively keyed to the two ends of the double-head motor, and the two groups of female gears are respectively sleeved on the ends of the two groups of rotating shafts away from the double-head motor.

[0009] Preferably, the two groups of female gear plates are respectively arranged in meshing connection with the corresponding female gears, and the two groups of lead screws are respectively fixedly connected with the corresponding female gear plates.

[0010] Preferably, the clamping protrusions are provided in the form of convex blocks, and the inner part of the fixed frame is provided with moving grooves corresponding to the clamping protrusions.

[0011] Preferably, the water-cooled heat dissipator is provided with heat dissipation holes on both sides, and the heat dissipation holes and the dust screen are located in the same vertical plane.

[0012] Preferably, the upper surface of the heat dissipation box is symmetrically provided with two groups of fixed blocks, the two groups of fixed frames are fixedly connected with the corresponding fixed blocks through the two groups of connecting rods, and the front side of the heat dissipation box is rotatably provided with a maintenance door.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model discloses a rotating shaft drives female gear plate rotation through female gear, and then drives lead screw rotation, and lead screw drives clamping protrusion up and down movement, thereby drives a plurality of groups of cleaning brush to move up and down along the side surface of heat dissipation box, thereby through a plurality of groups of cleaning brush, dust on the surface of dust screen and heat dissipation hole is cleaned into the inside of collecting box, thereby guaranteeing that dust screen and heat dissipation hole normally dissipate heat, thereby avoiding that photovoltaic inverter temperature is too high and leads to damage.

[0015] Other features and advantages of the present application will be further described in the following description, and become apparent from the description, or be learned through implementation of the present application. The objectives and other advantages of the present application can be realized and obtained by the structure indicated in the description and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the inside structure schematic diagram of the heat dissipation box of the utility model;

[0018] Figure 3 It is the cleaning assembly schematic diagram of the utility model;

[0019] Figure 4The utility model discloses a cleaning assembly explosion map.

[0020] In the drawing: 1, heat dissipation box body;2, maintenance door;3, dust screen;4, collection box;5, fixed frame;6, moving plate;7, double -end motor;8, rotation axis;9, fixed block;10, connecting rod;11, water cooling radiator;12, heat dissipation hole;13, cleaning brush;14, heat dissipation fan;15, sex gear;16, sex tooth disc;17, clamping lug;18, screw rod;19, moving groove. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the utility model.

[0022] As Figures 1-4 The utility model provides a water cooling heat dissipation device for photovoltaic inverter, including heat dissipation box body 1 and water cooling radiator 11, water cooling radiator 11 is fixedly arranged in the inside of heat dissipation box body 1, the inside wall of heat dissipation box body 1 is provided with several groups of heat dissipation fan 14, and the side of heat dissipation box body 1 is provided with several groups of dust screen 3 corresponding with heat dissipation fan 14, and the both sides of heat dissipation box body 1 are slidably provided with moving plate 6, and the side of the two groups of moving plate 6 close to heat dissipation box body 1 is provided with several groups of cleaning brush 13.

[0023] The side of heat dissipation box body 1 is provided with cleaning assembly for driving moving plate 6 and cleaning brush 13 to move up and down to clean dust screen 3;Photovoltaic inverter is arranged in the inside of heat dissipation box body 1 and is arranged between the two groups of water cooling radiator 11, so that the water cooling radiator 11 is used to cool photovoltaic inverter, and several groups of heat dissipation fan 14 are used to assist the heat dissipation of photovoltaic inverter, to further ensure that the temperature in photovoltaic inverter is not too high.

[0024] And several groups of cleaning brush 13 are driven by cleaning assembly to clean the surface of dust screen 3 and heat dissipation hole 12, so that the dust on the surface of dust screen 3 and heat dissipation hole 12 is scraped into the inside of collection box 4, to further ensure the ventilation effect of dust screen 3 and heat dissipation hole 12.

[0025] The cleaning assembly comprises a fixed frame 5, a clamping protrusion 17, a lead screw 18 and a driving module, the fixed frame 5, the clamping protrusion 17 and the lead screw 18 are provided in two groups, the two groups of fixed frames 5 are symmetrically arranged on the two sides of the heat dissipation box 1, the two groups of lead screws 18 are rotatably arranged in the corresponding fixed frames 5, and the two groups of clamping protrusions 17 are threadedly sleeved on the outer arc surfaces of the corresponding lead screws 18, and the lower surfaces of the two groups of fixed frames 5 are provided with collecting boxes 4, when the lead screw 18 rotates, the clamping protrusion 17 is driven to move up and down along the lead screw 18 through the thread, and the lead screw 18 is limited by the fixed frame 5, so that the lead screw 18 can rotate in the fixed frame 5.

[0026] The driving module comprises a double-head motor 7, a rotating shaft 8, a special-shaped gear 15 and a special-shaped gear disc 16, the double-head motor 7 is fixedly arranged on the upper surface of the heat dissipation box 1, the rotating shaft 8, the special-shaped gear 15 and the special-shaped gear disc 16 are provided in two groups, the two groups of rotating shafts 8 are respectively connected to the two ends of the double-head motor 7, the two groups of special-shaped gears 15 are respectively sleeved on the ends of the two groups of rotating shafts 8 away from the double-head motor 7, and the double-head motor 7 is started to drive the two groups of rotating shafts 8 to rotate, so that the two groups of special-shaped gears 15 are driven to rotate, and the two groups of special-shaped gears 15 are supported by the rotating shaft 8, so that the special-shaped gears 15 can rotate without tilting.

[0027] The two groups of special-shaped gear discs 16 are respectively arranged in meshing relationship with the corresponding special-shaped gears 15, and the two groups of lead screws 18 are respectively fixedly connected with the corresponding special-shaped gear discs 16, when the special-shaped gear 15 rotates, the special-shaped gear disc 16 is driven to rotate through the meshing arrangement, so that the two groups of lead screws 18 are driven to rotate through the two groups of special-shaped gear discs 16, and the two groups of clamping protrusions 17 are driven to move up and down through the arrangement of the group of double-head motors 7, and the special-shaped gear 15 and the special-shaped gear disc 16 are more stable than the motor structure and are not easy to be damaged, so that the maintenance cost is reduced to save the cost.

[0028] It is worth mentioning that the clamping protrusion 17 is provided as a convex block, and the fixed frame 5 is provided with a moving groove 19 corresponding to the clamping protrusion 17, the clamping protrusion 17 is a convex block and is clamped into the moving groove 19, and moves up and down along the moving groove 19, so that the clamping protrusion 17 cannot rotate with the lead screw 18 while the lead screw 18 drives the clamping protrusion 17 to move up and down.

[0029] Specifically, the water-cooled radiator 11 is provided with heat dissipation holes 12 on the two sides, and the heat dissipation holes 12 and the dust screen 3 are located in the same vertical plane, the water-cooled radiator 11 is provided as a water-cooled cooling structure with a fan, and the heat dissipation holes 12 and the dust screen 3 are located in the same plane, so that the plurality of cleaning brushes 13 can contact the plurality of dust screens 3 and the heat dissipation holes 12, thereby cleaning the outer side surfaces of the dust screen 3 and the heat dissipation holes 12, and ensuring that the dust screen 3 and the heat dissipation holes 12 can normally ventilate and dissipate heat.

[0030] In addition, two groups of fixing blocks 9 are symmetrically arranged on the upper surface of the heat dissipation box body 1, and the two groups of fixing frames 5 are fixedly connected with the corresponding fixing blocks 9 through two groups of connecting rods 10, a maintenance door 2 is rotatably arranged on the front side of the heat dissipation box body 1, the fixing blocks 9 are fixedly connected with the heat dissipation box body 1, and the fixing frames 5 are fixedly connected with the heat dissipation box body 1 through the connecting rods 10, so as to protect the stability of the cleaning assembly during movement, and the maintenance door 2 is arranged to facilitate the maintenance personnel to maintain the photovoltaic inverter inside the heat dissipation box body 1.

[0031] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A water-cooling heat dissipation device for a photovoltaic inverter, characterized in that, It include: heat dissipation box (1) and water cooling radiator (11), water cooling radiator (11) is fixedly arranged in the heat dissipation box (1), the inner wall of the heat dissipation box (1) is provided with a plurality of groups of heat dissipation fan (14), the side of the heat dissipation box (1) is provided with a plurality of groups of dust screen (3) corresponding to the heat dissipation fan (14), the both sides of the heat dissipation box (1) are slidably provided with moving plate (6), the side of the two groups of moving plate (6) close to the heat dissipation box (1) is provided with a plurality of groups of cleaning brush (13). The side of the heat dissipation box (1) is provided with a cleaning assembly for driving the moving plate (6) and the cleaning brush (13) to move up and down to clean the dust screen (3).

2. The water-cooling heat dissipation device for photovoltaic inverter according to claim 1, characterized in that: The cleaning assembly includes fixed frame (5), clamping protrusion (17), screw rod (18) and drive module, the fixed frame (5), clamping protrusion (17) and screw rod (18) are provided with two groups, two groups of fixed frame (5) are symmetrically arranged on the both sides of the heat dissipation box (1), two groups of screw rod (18) are rotatably arranged in the corresponding fixed frame (5), and two groups of clamping protrusion (17) are threadedly connected to the outer arc surface of the corresponding screw rod (18), and the lower surfaces of two groups of fixed frame (5) are provided with collecting box (4).

3. The water-cooled heat sink for a photovoltaic inverter according to claim 2, characterized in that: The drive module includes double-head motor (7), rotating shaft (8), male gear (15) and female gear (16), the double-head motor (7) is fixedly arranged on the upper surface of the heat dissipation box (1), the rotating shaft (8), the male gear (15) and the female gear (16) are provided with two groups, the two groups of rotating shaft (8) are respectively connected to the two ends of the double-head motor (7), and the two groups of male gear (15) are respectively connected to the one end of the two groups of rotating shaft (8) away from the double-head motor (7).

4. The water-cooled heat sink for a photovoltaic inverter according to claim 3, characterized in that: Two groups of female gear (16) are respectively arranged in meshing with the corresponding male gear (15), and two groups of screw rod (18) are respectively fixedly connected with the corresponding female gear (16).

5. The water-cooled heat sink for a photovoltaic inverter according to claim 4, characterized in that: The clamping protrusion (17) is provided as a convex block, and the inner portion of the fixed frame (5) is provided with a moving groove (19) corresponding to the clamping protrusion (17).

6. The water-cooled heat sink for a photovoltaic inverter according to claim 1, characterized in that: The both sides of the water cooling radiator (11) are provided with heat dissipation holes (12), and the heat dissipation holes (12) and the dust screen (3) are located in the same vertical plane.

7. The water-cooled heat sink for a photovoltaic inverter according to claim 2, characterized in that: The upper surface of the heat dissipation box (1) is symmetrically provided with two groups of fixed blocks (9), two groups of fixed frame (5) are fixedly connected with the corresponding fixed blocks (9) through two groups of connecting rods (10), and the front side of the heat dissipation box (1) is rotatably provided with a maintenance door (2).

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