CN207625168U - A kind of outdoor electricity distribution net low pressure end electric energy compensation device - Google Patents

Abstract

The utility model provides an electric energy compensation device for a low-voltage terminal of an outdoor distribution network. It includes a cabinet body and a cabinet door hinged on the cabinet body. The cabinet body is provided with a signal collection interface and an electric energy output interface, and an electric energy compensation device is arranged in the cabinet body. The signal collection interface and the electric energy transmission interface are respectively connected to the electric energy The compensation device is connected, the top of the cabinet is provided with a slope type top cover, the top cover is evenly provided with a plurality of water guide grooves along the slope direction, and the edge of the top cover is provided with a confluence groove communicating with the water guide grooves , the inner bottom wall of the confluence tank is a slope type, and the confluence tank slope is provided with a water outlet, and the water outlet is connected with the water outlet pipe, and the water outlet pipe is fixed on the side wall of the cabinet body. The device of the utility model is provided with a water-guiding structure on the top cover, which can effectively prevent rainwater from being exported, avoiding entering the cabinet body and damaging electrical equipment. In addition, the baffles provided on the side walls of the cabinet can also prevent the entry of rainwater, and the dust-proof nets provided in the cooling openings can prevent the entry of dust and insects.

Description

A low-voltage terminal electric energy compensation device for outdoor distribution network

technical field

The utility model relates to the technical field of distribution network electric energy compensation, in particular to an outdoor low-voltage terminal electric energy compensation device of distribution network.

Background technique

The importance of power quality has been increasing with the rapid development of the national economy, and power quality has increasingly received great attention and attention from power supply companies and power users. With different seasons, the power consumption situation is also different, and the seasonality of power demand It is manifested as a cyclical change with an annual cycle. The demand is larger in summer and winter, and sometimes the demand will suddenly rise in a short period of time, such as extremely hot and extremely cold weather. Demand is also cyclical during the week, and demand tends to be lower on weekends as industrial activities decrease. Electricity demand rises steadily every year. In summer and winter, the voltage of the distribution network is too low, and the voltage drop on the line is large (more than 10%, or even 20%), resulting in low terminal voltage, especially during peak load periods. The best solution to this problem is to follow the principle of local compensation and local governance, and directly install electric energy compensation devices on the low-voltage distribution network.

The working principle of the power compensation device is to offset the distorted waveform of the voltage and current in the power grid by generating an opposite waveform through the converter with the power electronic device as the core. There are electrical components inside the power compensation device, so when it is placed outdoors, it is more important to protect it from rain. The existing electric energy compensation device has no rainwater export structure, and rainwater often enters the cabinet through the gap of the cabinet body and damages the electrical components. In addition, the electrical components in the power compensation device will generate a lot of heat during use. If the generated heat cannot be dissipated in time, these devices may be burned, and serious consequences such as cabinet explosion may occur. The existing heat dissipation method of the electric energy compensation device is to set a heat dissipation port on the cabinet body. The common heat dissipation port cannot be used outdoors. In rainy and snowy weather, rain and snow will enter through the heat dissipation port. In order to solve this type of problem, the existing device is provided with a flat D-shaped cooling opening on the cabinet, but although this structure can play the role of rain and snow protection, its opening is small, and it is fixed and cannot be adjusted. When the temperature in the compensation device is high, it cannot dissipate heat in time.

Therefore, it is urgent to develop and design an outdoor power distribution network low-voltage terminal electric energy compensation device that can avoid the above-mentioned disadvantages.

Utility model content

The purpose of the utility model is to solve the above problems, thereby providing an electric energy compensation device at the low-voltage terminal of an outdoor distribution network.

In order to achieve the above purpose, the utility model provides an electric energy compensation device at the low-voltage terminal of an outdoor distribution network. The device includes a cabinet body and a cabinet door hinged on the cabinet body, the cabinet body is provided with a signal collection interface and an electric energy output interface, and an electric energy compensation device is arranged in the cabinet body, and the signal collection interface and the electric energy transmission interface are respectively connected to the The electric energy compensation device is connected, the top of the cabinet is provided with a slope type top cover, and a plurality of water guide grooves are uniformly arranged on the top cover along the slope direction, and the edge of the top cover is provided with the water guide groove. A confluence tank, the inner bottom wall of the confluence tank is a slope type, and a water outlet is provided on the lower slope of the confluence tank, and the water outlet is connected to a water outlet pipe, and the water outlet pipe is fixed on the side wall of the cabinet body;

The side wall of the cabinet body is provided with a row of cooling ports, and the cabinet body wall inside the cooling port is provided with a dust-proof net and a tuyere adjustment structure in turn; the tuyere adjustment structure includes a rotating plate and a motor, and the rotating plate is arranged on the cooling port. On the inner cabinet wall, the output shaft of the motor is connected to the rotating plate, and a baffle is provided on the cabinet wall outside the heat dissipation port, and the baffle includes a first vertical plate, a second inclined plate and a third vertical plate The first vertical board is connected with the third vertical board through the second inclined board, and the first vertical board is fixedly connected with the outer wall of the cabinet.

Preferably, the longitudinal section of the confluence groove is a closed or semi-closed rectangle or circle.

Preferably, each corner of the bottom of the cabinet is provided with supporting feet.

Preferably, the cabinet door is provided with an IC identification door lock.

Preferably, an observation window is also provided on the cabinet door.

Preferably, the cabinet is an insulated explosion-proof housing.

Preferably, the side walls of the cabinet are symmetrically provided with suspension rings.

The electric energy compensation device at the low-voltage end of the outdoor distribution network of the utility model has a water-conducting structure on the top cover, which can effectively prevent rainwater from being exported, entering the cabinet, and damaging electrical equipment. In addition, the baffles provided on the side walls of the cabinet can also prevent the entry of rainwater, and the dust-proof nets provided in the cooling openings can prevent the entry of dust and insects. And the adjustment structure of the air outlet can be set at the cooling outlet to adjust the size of the cooling outlet according to the temperature in the cabinet.

Description of drawings

Fig. 1 is a schematic structural diagram of an electric energy compensation device at a low-voltage terminal of an outdoor distribution network provided by an embodiment of the present invention.

Fig. 2 is a schematic longitudinal sectional view of the side wall of the cabinet body of the low-voltage terminal electric energy compensation device of the outdoor power distribution network provided by the embodiment of the present invention with the heat dissipation port;

Fig. 3 is a schematic front view of the side wall of the cabinet body of the low-voltage terminal electric energy compensation device of the outdoor distribution network provided by the embodiment of the utility model with the heat dissipation port.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the technical solutions in the utility model embodiments will be clearly and completely described below in conjunction with the accompanying drawings in the utility model embodiments. Obviously, the following description The embodiments are only some of the embodiments of the utility model, but not all of them. Based on the embodiments in the utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the utility model.

Fig. 1 is a schematic structural diagram of an electric energy compensation device at a low-voltage terminal of an outdoor distribution network provided by an embodiment of the present invention.

As shown in FIG. 1 , the electric energy compensation device at the low-voltage end of the outdoor distribution network provided by the embodiment of the present invention includes a cabinet body 1 and a cabinet door 2 hinged on the cabinet body. The cabinet body 1 is an insulating explosion-proof shell. The cabinet body 1 is provided with a signal collection interface 1.1 and an electric energy output interface 1.2, and a row of cooling outlets 1.3 is provided on the side wall of the cabinet body 1 . The cabinet body 1 is provided with an electric energy compensation device, and the signal acquisition interface 1.1 and the electric energy transmission interface 1.2 are respectively connected with the electric energy compensation device. The power compensation device may include: signal collector, ADC converter, CPLD, PWM circuit, energy storage power supply, three-level inverter and GPRS wireless communication module, the signal collection interface 1.1 is connected to the signal collector, and the signal collector is connected to the ADC The converter is connected, the ADC converter is connected to the CPLD, the CPLD is connected to the PWM circuit, the PWM circuit is connected to the three-level inverter, the energy storage power supply is connected to the three-level inverter, and the power output interface 1.2 is connected to the three-level inverter The device is connected, and the GPRS wireless communication module is connected with the CPLD.

The top of the cabinet body 1 is provided with a slope-type top cover 3, and the top cover 3 is evenly provided with a plurality of water guide grooves 3.1 along the slope direction, and the edge of the top cover is provided with a confluence groove 3.2 communicating with the water guide grooves 3.1, and the confluence The inner bottom wall of the tank 3.2 is a slope type, and the confluence tank slope is provided with a water outlet 3.3, and the water outlet 3.3 is connected with the water outlet pipe 4, and the water outlet pipe 4 is fixed on the side wall of the cabinet body 1. The water guide groove 3.1 on the slope top cover 3 can introduce rainwater into the confluence tank 3.2, and the rainwater enters the outlet pipe 4 through the water outlet 3.3 in the confluence groove 3.2, and is discharged through the outlet pipe 4.

As shown in FIG. 2 and FIG. 3 , a dust-proof net 5 and an air outlet adjustment structure 6 are sequentially provided on the cabinet wall inside the heat dissipation opening 1.3. The setting of dust-proof net 5 can avoid the entry of dust and insects.

The structure of the tuyere adjustment structure 6 can be seen in Figure 2, which includes a rotating plate 6.1 and a motor 6.2, the rotating plate 6.1 is arranged on the wall of the cabinet body 1 inside the heat dissipation port 1.3, the output shaft of the motor 6.2 is connected with the rotating plate 6.1, the A baffle 7 is provided on the cabinet wall outside the heat dissipation port 1.3. The structure of the baffle is shown in Figure 3. The baffle 7 includes a first vertical plate 7.1, a second inclined plate 7.2 and a third vertical plate 7.3. The first vertical plate The plate 7.1 is connected with the third vertical plate 7.3 through the second inclined plate 7.2, and the first vertical plate 7.1 is fixedly connected with the outer wall of the cabinet, which can be welded or bolted.

In addition, the electric energy compensation device of the embodiment of the utility model can also have other changes. Since the electric energy compensation device is placed on the ground for a long time, the bottom of the cabinet body will be eroded by moisture for a long time, so this embodiment can also be provided with supports at the corners of the bottom of the cabinet body foot 8. The supporting feet 8 can be fixedly arranged on the bottom of the cabinet, or can be rotatably arranged on the bottom of the cabinet. In order to facilitate transportation and installation, in this embodiment, lifting rings 9 are symmetrically provided on the side wall of the cabinet body 1 .

In order to prevent non-working personnel from entering the cabinet, the embodiment of the utility model also sets an IC identification door lock 10 on the cabinet door 2. The IC identification door lock is a kind of mature electronic access control, and has been widely used in various places. . And in order to observe the situation in the cabinet conveniently, the utility model embodiment is also provided with observation window 11 on the cabinet door.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present utility model in detail. Within the protection scope of the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (7)

1. An electric energy compensation device at the low-voltage terminal of an outdoor distribution network, comprising a cabinet and a cabinet door hinged on the cabinet, the cabinet is provided with a signal acquisition interface and an electric energy output interface, and an electric energy compensation device is provided in the cabinet, The signal acquisition interface and the power transmission interface are respectively connected to the power compensation device, and it is characterized in that the top of the cabinet is provided with a slope-type top cover, and the top cover is evenly provided with a plurality of guides along the slope direction. A water tank, the edge of the top cover is provided with a confluence tank communicating with the water guide tank, the inner bottom wall of the confluence tank is a slope type, and a water outlet is provided on the lower slope of the confluence tank, and the water outlet is connected to the water outlet pipe. The outlet pipe is fixed on the side wall of the cabinet; The side wall of the cabinet body is provided with a row of cooling ports, and the cabinet body wall inside the cooling port is provided with a dust-proof net and a tuyere adjustment structure in turn; the tuyere adjustment structure includes a rotating plate and a motor, and the rotating plate is arranged on the cooling port. On the inner cabinet wall, the output shaft of the motor is connected to the rotating plate, and a baffle is provided on the cabinet wall outside the heat dissipation port, and the baffle includes a first vertical plate, a second inclined plate and a third vertical plate The first vertical board is connected with the third vertical board through the second inclined board, and the first vertical board is fixedly connected with the outer wall of the cabinet. 2. The electric energy compensation device at the low-voltage end of an outdoor power distribution network according to claim 1, wherein the longitudinal section of the collecting tank is a closed or semi-closed rectangle or circle. 3. The electric energy compensation device at the low-voltage terminal of an outdoor power distribution network according to claim 1, wherein support feet are provided at each corner of the bottom of the cabinet. 4. The electric energy compensation device at the low-voltage terminal of an outdoor power distribution network according to claim 1, wherein the cabinet door is provided with an IC identification door lock. 5. The electric energy compensation device at the low-voltage terminal of an outdoor power distribution network according to claim 1, wherein an observation window is also provided on the cabinet door. 6. The electric energy compensation device at the low-voltage terminal of an outdoor distribution network according to claim 1, wherein the cabinet body is an insulated explosion-proof casing. 7. The electric energy compensation device at the low-voltage terminal of an outdoor distribution network according to claim 1, wherein the side wall of the cabinet body is symmetrically provided with lifting rings.