CN207459510U - A photovoltaic grid-connected distribution box - Google Patents

Abstract

The utility model relates to a distribution equipment technical field, in particular to photovoltaic block terminal that is incorporated into power networks, including box and rain-proof cover, be equipped with the fluted plate between the top of box and the top of rain-proof cover, the top face of rain-proof cover sets up for the slope, the front portion of box is equipped with the sliding door, the one end and the box of sliding door are articulated, and its other end passes through AB lock and box locking cooperation, still be equipped with temperature-detecting device, heat abstractor and controlling means in the box, temperature-detecting device, heat abstractor all with controlling means electric connection. The utility model discloses an inclination of rain-proof cover is provided with trickling to the fluted plate of the rainwater of being convenient for in, because the front end slope of fluted plate upwards sets up, the rainwater can only flow from its both ends, realizes the temperature cooling work to in the block terminal, the utility model discloses simple structure can satisfy the outdoor installation requirement of block terminal, and prevents that when high temperature weather, has avoided the electrical components in the block terminal to generate heat because of the high temperature and has leaded to the condition emergence of trouble.

Description

A photovoltaic grid-connected distribution box

technical field

The utility model relates to the technical field of power distribution equipment, in particular to a photovoltaic grid-connected distribution box.

Background technique

With the continuous deepening of the transformation of the urban power grid, a large number of distribution boxes have been applied to the urban smart grid and various distribution stations. In order to adapt to the needs of the intelligent development of the urban network, to meet the new requirements of customers for power supply capacity, power supply quality and power supply services, and to improve the standardization and construction level of the urban network intelligent distribution station area, a standardization of urban high-voltage power distribution equipment and outdoor When the distribution box is installed outdoors, it not only receives direct sunlight to generate high temperature, but also generates heat during its own operation. Therefore, in the midsummer high temperature season, the electrical components in the equipment box often overheat At present, most distribution boxes can only be installed indoors, and have a single structure and poor practicability.

Utility model content

The purpose of the utility model is to provide a photovoltaic grid-connected distribution box aiming at the deficiencies of the prior art.

In order to solve the above problems, the utility model provides the following technical solutions:

A photovoltaic grid-connected distribution box, comprising a box body and a rainproof cover fixedly connected to the top of the box body, a groove plate is provided between the top of the box body and the top of the rainproof cover to facilitate the flow of rainwater, and the groove The groove plate is fixedly connected with the box body and the front end of the groove plate is inclined, and the top surface of the rainproof cover is inclined, and its inclination direction extends from the back of the box to the front of the box. There is a sliding door at the front, one end of the sliding door is hinged with the box body, and the other end is locked and matched with the box body through the AB lock. The box body is also equipped with a temperature detection device, a heat dissipation device and a control device. The control device is located below the temperature detection device, and the heat dissipation device is located near the bottom of the box and away from the control device. Both the temperature detection device and the heat dissipation device are electrically connected to the control device.

Further, the front end of the grooved plate is inclined upwards.

Further, the temperature detection device includes a first temperature sensor, a second temperature sensor and a partition, and the partition divides the inner space of the box into a first accommodating chamber and a second accommodating chamber, the first temperature sensor and the second accommodating chamber The second temperature sensors are vertically arranged on the upper end surface and the lower end surface of the partition, and the detection end of the first temperature sensor corresponds to the first storage chamber, and the detection end of the second temperature sensor corresponds to the second storage chamber. The plate is symmetrically provided with two pairs of lugs along the midline of its own width, and all lugs are provided with screw holes for bolts to pass through, and the partition is fixedly connected with the inner wall of the box through the two pairs of lugs.

Further, the control device includes a controller disposed in the second accommodating chamber, and both the first temperature sensor and the second temperature sensor are electrically connected to the controller.

Further, the outer wall of the box body is provided with a ventilating shell communicated with the first accommodating chamber, the ventilating shell is fixedly connected with the box body and the bottom of the ventilating shell is provided with a set of vent holes, the bottom surface of the ventilating shell is as high as on the bottom end of the box.

Further, the heat dissipation device includes a mounting frame fixedly connected to the box body and a first axial fan and a second axial fan arranged symmetrically along the centerline of the width of the mounting frame, the first axial fan and the second axial fan Drive fit through driven components.

Further, the first axial fan includes a first impeller, a casing and a motor fixedly connected to the rear end of the first impeller, the motor is installed on the casing, and the second axial fan includes a second impeller and a motor fixed to the rear end of the first impeller. The rear ends of the two impellers are fixedly connected to the connecting shaft.

Further, the driven assembly includes a first sprocket fixedly connected to the rear end of the first impeller and a second sprocket fixedly connected to the rear end of the connecting shaft, and the first sprocket and the second sprocket are synchronized through Belt driven fit.

Beneficial effects: a photovoltaic grid-connected distribution box of the utility model is provided with a rainproof cover to facilitate the flow of rainwater into the groove plate. Since the front end of the groove plate is inclined upward, the rainwater can only flow from the to prevent rainwater from entering the equipment box; when the first temperature sensor and the second temperature sensor sense that the temperature in the distribution box is too high, they will transmit their own detection electrical signal to the controller, and the controller will process the electrical signal , so as to control the motor to work to make the first impeller rotate, because the first sprocket at the rear end of the first impeller and the second sprocket at the rear end of the second impeller are drivenly matched through the synchronous belt, so the second impeller also rotates to realize power distribution The utility model has a simple structure and can meet the outdoor installation requirements of the distribution box, and prevents the electrical components in the distribution box from malfunctioning due to high temperature heating in high temperature weather.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the bottom view of Fig. 1;

Fig. 3 is a partial three-dimensional structure schematic diagram one of the utility model;

Fig. 4 is the partial three-dimensional structure schematic diagram II of the utility model;

Fig. 5 is the front view of Fig. 4;

Fig. 6 is a three-dimensional structural schematic diagram of the heat dissipation device of the present invention;

Explanation of reference numerals: box body 1, rainproof cover 2, groove plate 3, sliding door 4, AB lock 5, temperature detection device 6, first temperature sensor 6a, second temperature sensor 6b, partition 6c, lug 6d, cooling device 7, installation frame 7a, first axial flow fan 7b, first impeller 7b1, casing 7b2, motor 7b3, second axial flow fan 7c, second impeller 7c1, connecting shaft 7c2, driven assembly 7d, A controller 8 , a first storage chamber 9 , a second storage chamber 10 , a ventilation shell 11 , and a ventilation hole group 12 .

Detailed ways

Below in conjunction with accompanying drawing and embodiment of description, the specific embodiment of the utility model is described in further detail:

Referring to a photovoltaic grid-connected distribution box shown in Figures 1 to 6, it includes a box body 1 and a rainproof cover 2 fixedly connected to the top of the box body 1, and the top of the box body 1 and the top of the rainproof cover 2 Between is provided with the groove plate 3 that is convenient for rainwater to flow, and this groove plate 3 is fixedly connected with box body 1 and the front end of the groove plate is inclined to be set, and the top surface of described rainproof cover 2 is to be inclined to set, and its inclination direction is from The back of the box body 1 is extended to the front of the box body 1, and the front portion of the box body 1 is provided with a sliding door 4. One end of the sliding door 4 is hinged with the box body 1, and the other end is connected with the box body 1 through the AB lock 5. The box body 1 is locked and fitted. The box body 1 is also provided with a temperature detection device 6, a heat dissipation device 7 and a control device. The control device is located below the temperature detection device 6, and the heat dissipation device 7 is located near the bottom of the box body 1. On the side away from the control device, the temperature detection device 6 and the heat dissipation device 7 are electrically connected to the control device, and the cooperation between the rainproof cover 2 and the groove plate 3 can facilitate rainwater from the groove plate 3. The two ends flow out, and will not enter the inside of the box body 1; the temperature detection device 6 detects the temperature inside the box body 1, and the control device can control the work of the cooling device 7, thereby reducing the internal temperature of the box body 1, so that the electrical components do not work May malfunction due to temperature.

The front end of the grooved plate 3 is arranged on an upward slope, which is convenient for rainwater to flow out from its two ends.

The temperature detection device 6 includes a first temperature sensor 6a, a second temperature sensor 6b and a partition 6c, and the partition 6c divides the inner space of the box body 1 into a first accommodation chamber 9 and a second accommodation chamber 10, so Both the first temperature sensor 6a and the second temperature sensor 6b are vertically arranged on the upper end surface and the lower end surface of the partition plate 6c, and the detection end of the first temperature sensor 6a corresponds to the first housing chamber 9, and the second temperature sensor 6b The detection end corresponds to the second accommodating cavity 10, and when the temperature in the distribution box is sensed by the first temperature sensor 6a and the second temperature sensor 6b, it transmits its own detection electrical signal to the controller 8, and the controller 8 controls the electrical The processing of the signal makes a corresponding instruction, and the partition 6c is symmetrically provided with two pairs of lugs 6d along its own width midline, and all the lugs 6d are provided with screw holes for bolts to pass through, and the partition 6c passes through the two pairs of support lugs. The ear 6d is fixedly connected with the inner wall of the box body 1, and the interior of the box body 1 is divided into two parts by the partition plate 6c, and the partition plate 6c is fixedly connected with the box body 1 by bolts, which can facilitate the installation of various electrical components of different sizes.

The control device includes a controller 8 disposed in the second housing chamber 10, the first temperature sensor 6a and the second temperature sensor 6b are electrically connected to the controller 8, and the first temperature sensor 6a and the second temperature sensor 6b can be controlled by the controller 8. The electric signal of the second temperature sensor 6 b is processed, so as to control the operation of the heat sink 7 .

The outer wall of the box body 1 is provided with a ventilation shell 11 communicating with the first accommodating chamber 9, the ventilation shell 11 is fixedly connected with the box body 1 and the bottom of the ventilation shell 11 is provided with a group of ventilation holes 12, the ventilation The bottom end surface of the shell 11 is higher than the bottom end surface of the box body 1 , which facilitates the internal air circulation of the box body 1 and reduces the internal temperature of the box body 1 .

The heat dissipation device 7 includes a mounting frame 7a fixedly connected to the box body 1 and a first axial flow fan 7b and a second axial flow fan 7c arranged symmetrically along the width midline of the mounting frame 7a. The operation of the two axial flow fans 7c can keep the inside of the box 1 at a certain temperature, and the first axial flow fan 7b and the second axial flow fan 7c are driven and matched through the driven assembly 7d.

The first axial fan 7b includes a first impeller 7b1, a casing 7b2 and a motor 7b3 fixedly connected to the rear end of the first impeller 7b1, the motor 7b3 is installed on the casing 7b2, and the second axial fan 7c includes The second impeller 7c1 and the connecting shaft 7c2 fixedly connected to the rear end of the second impeller 7c1 are driven by the motor 7b3 to rotate the first impeller 7b1 fixedly connected to its output end, thereby reducing the temperature in the box 1 .

The driven assembly 7d includes a first sprocket fixedly connected to the rear end of the first impeller 7b1 and a second sprocket fixedly connected to the rear end of the connecting shaft 7c2, the first sprocket and the second sprocket pass through The synchronous belt is drivenly matched, when the motor 7b3 drives the first impeller 7b1 to rotate, because the first sprocket at the rear end of the first impeller 7b1 and the second sprocket at the rear end of the second impeller 7c1 are drivenly matched through the synchronous belt, so the second impeller 7c1 also rotates to realize the work of cooling the temperature in the distribution box.

Working principle: A photovoltaic grid-connected distribution box of the utility model is provided with a tilting rain cover 2 to facilitate the flow of rainwater into the groove plate 3. Since the front end of the groove plate 3 is tilted upward, the rainwater can only Flow out from its two ends to prevent rainwater from entering the equipment box; when the first temperature sensor 6a and the second temperature sensor 6b sense that the temperature in the distribution box is too high, they will transmit their own detection electric signal to the controller 8, and after control The device 8 processes the electrical signal, thereby controlling the operation of the motor 7b3 to make the first impeller 7b1 rotate, because the first sprocket at the rear end of the first impeller 7b1 and the second sprocket at the rear end of the second impeller 7c1 are drivenly matched through the timing belt, so The second impeller 7c1 also rotates to realize the cooling of the temperature in the distribution box. The utility model has a simple structure and can meet the outdoor installation requirements of the distribution box, and prevents the electrical appliances in the distribution box from being damaged in high temperature weather. Component failure due to high temperature heating occurs.

The above is only a preferred embodiment of the present utility model, and does not make any limitation to the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model , all still belong to the scope of the technical solution of the present utility model.

Claims (8)

1. A photovoltaic grid-connected distribution box, characterized in that: it includes a box body (1) and a rainproof cover (2) fixedly connected to the top of the box body (1), and the top of the box body (1) is connected to the rainproof cover (2). The top of the rain cover (2) is provided with a grooved plate (3) that is convenient for rainwater to flow, and the grooved plate (3) is fixedly connected with the box body (1) and the front end of the grooved plate (3) is inclined. The top surface of the rainproof cover (2) is inclined, and its inclined direction extends from the back of the box (1) to the front of the box (1), and the front of the box (1) is provided with a pull One end of the sliding door (4) is hinged with the box body (1), and the other end is locked and matched with the box body (1) through the AB lock (5). A temperature detection device (6), a heat dissipation device (7) and a control device are provided, the control device is located below the temperature detection device (6), and the heat dissipation device (7) is located near the bottom of the box body (1) and away from the control device On one side, the temperature detection device (6) and the heat dissipation device (7) are both electrically connected to the control device. 2. A photovoltaic grid-connected power distribution box according to claim 1, characterized in that: the front end of the grooved plate (3) is inclined upward. 3. A photovoltaic grid-connected distribution box according to claim 1, characterized in that: the temperature detection device (6) includes a first temperature sensor (6a), a second temperature sensor (6b) and a partition ( 6c), the partition (6c) divides the inner space of the box (1) into a first accommodating cavity (9) and a second accommodating cavity (10), and the first temperature sensor (6a) and the second temperature sensor (6a) The sensors (6b) are all arranged vertically on the upper end surface and the lower end surface of the partition (6c), and the detection end of the first temperature sensor (6a) corresponds to the first accommodation chamber (9), and the second temperature sensor (6b) The detecting end corresponds to the second housing chamber (10), and the partition (6c) is symmetrically provided with two pairs of lugs (6d) along the midline of its own width, and all lugs (6d) are provided with screw holes for bolts to pass through holes, and the partition (6c) is fixedly connected with the inner wall of the box body (1) through two pairs of lugs (6d). 4. A photovoltaic grid-connected distribution box according to claim 3, characterized in that: the control device includes a controller (8) arranged in the second accommodation chamber (10), the first temperature sensor (6a ) and the second temperature sensor (6b) are electrically connected with the controller (8). 5. A photovoltaic grid-connected distribution box according to claim 4, characterized in that: the outer wall of the box (1) is provided with a ventilating shell (11) communicating with the first accommodation cavity (9) , the vent shell (11) is fixedly connected with the box body (1) and the bottom of the vent shell (11) is provided with a vent hole group (12), and the bottom surface of the vent shell (11) is higher than the box body (1) bottom end face. 6. A photovoltaic grid-connected distribution box according to claim 5, characterized in that: the heat dissipation device (7) includes a mounting frame (7a) fixedly connected to the box body (1) and a mounting frame (7a) along the ) The first axial flow fan (7b) and the second axial flow fan (7c) arranged symmetrically on the width midline, the first axial flow fan (7b) and the second axial flow fan (7c) pass through the driven assembly (7d ) transmission fit. 7. A photovoltaic grid-connected distribution box according to claim 6, characterized in that: the first axial fan (7b) includes a first impeller (7b1), a casing (7b2) and the first impeller The rear end of (7b1) is fixedly connected to the motor (7b3), the motor (7b3) is installed on the casing (7b2), and the second axial flow fan (7c) includes a second impeller (7c1) and a second impeller ( The connecting shaft (7c2) that the rear end of 7c1) is fixedly connected. 8. A photovoltaic grid-connected distribution box according to claim 7, characterized in that: the driven assembly (7d) includes a first sprocket fixedly connected to the rear end of the first impeller (7b1) and a The rear end of the connecting shaft (7c2) is fixedly connected to the second sprocket, and the first sprocket and the second sprocket are drivenly matched through the synchronous belt.