CN213185516U

CN213185516U - Novel automatic balancing device for three-phase load of power distribution network

Info

Publication number: CN213185516U
Application number: CN202021958088.5U
Authority: CN
Inventors: 金光辉
Original assignee: Huiyao Power Technology Yunnan Co ltd
Current assignee: Huiyao Power Technology Yunnan Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-05-11
Anticipated expiration: 2030-09-09

Abstract

The utility model belongs to the technical field of power distribution networks, in particular to a novel automatic balancing device for three-phase load of a power distribution network, which comprises a shell, wherein the interior of the shell is fixedly connected with a protective cover, the interior of the protective cover is fixedly connected with a partition plate, the surface of the partition plate is fixedly connected with an exhaust fan, one side of the protective cover is provided with an air inlet, and the other side of the protective cover is provided with an air outlet; this novel distribution network three-phase load automatic balancing device, through setting up the attenuator, buffer board and shock attenuation board, can cushion the shock attenuation to the vibrations in this device transportation, thereby reduce the vibrations power that acts on the balanced device case, guarantee this device life, through setting up the protection casing, the exhaust fan, air intake and exhaust vent, can carry out the heat dissipation of blowing to the heat that produces in the balanced device case working process, thereby improve the heat dispersion of this device, avoid the device to work for a long time and generate the condition such as spontaneous combustion, and then improve the security performance of this device.

Description

Novel automatic balancing device for three-phase load of power distribution network

Technical Field

The utility model belongs to the technical field of the distribution network, concretely relates to novel distribution network three-phase load is automatic balanced device.

Background

The consumption of electric energy in an electric power system is mainly realized by a distribution network, in particular by low voltage of the distribution network. The low-voltage power load in China generally refers to a load carried by an alternating current 220V/380V system. An AC 220V/380V system is generally composed of three-phase four-wire, namely, A phase, B phase, C phase and N phase, low-voltage electric energy of a power distribution network is transmitted and distributed by means of cable lines or lead lines at a certain distance, inductance in the low-voltage lines is unavoidable, so that reactive power in loads does exist, loads carried by the low-voltage side of the power distribution network include single-phase loads and three-phase loads, for a three-phase motor, the three-phase loads are in a balanced state during normal operation, for residential electricity is almost single-phase loads, so that the power distribution network is in an absolute unbalanced state, furthermore, as the residential loads are usually led out from the low-voltage side of a transformer by cables or leads, the distribution balance of output loads of the transformer is difficult to control during installation, even if the distribution of the three-phase loads is balanced during installation, but due to seasonality, time-interval and different time rates of, the unbalance of the three-phase load is absolutely existed, and the fact proves that in some places, the unbalance rate of the three-phase load is as high as more than 80%, so that the absolute balance of the three-phase load of the low-voltage power system is an ideal state, and the unbalance is a normal state.

And distribution network three-phase load automatic equalizer installs comparatively troublesome among the prior art, and the radiating effect is not good enough simultaneously, takes place the circumstances such as spontaneous combustion easily in long-time use, and moreover shock attenuation effect performance is not good, causes the damage of internal component easily because vibrations in the transportation or the removal process of device.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a novel distribution network three-phase load is automatic balanced device has that the radiating effect is good and the good characteristics of damping performance.

In order to achieve the above object, the utility model provides a following technical scheme: a novel three-phase load automatic balancing device for a power distribution network comprises a shell, wherein a protective cover is fixedly connected inside the shell, a partition plate is fixedly connected inside the protective cover, an exhaust fan is fixedly connected to the surface of the partition plate, an air inlet is formed in one side of the protective cover, an air outlet is formed in the other side of the protective cover, a dust filter screen is fixedly connected inside the air inlet and the air outlet, an equalizer box is fixedly connected to the inner surface of the shell, a damper is fixedly connected inside the shell, a buffer plate is fixedly connected to the upper end of the damper, a shock absorption plate is fixedly connected to the upper surface of the buffer plate, a slide rail is fixedly connected to the lower surface of the shell, a supporting seat is slidably connected inside the slide rail, a first fixed block is fixedly connected to the surface of the slide rail, a second fixed, the cavity has been seted up to the inside of first fixed block, the inside sliding connection of cavity has the baffle, the inside fixedly connected with bolt of baffle, the one end fixedly connected with handle of bolt, the other end joint of bolt is in the inside of second fixed block.

As a further aspect of the present invention: the supporting seat is fixedly connected with an external plane.

As a further aspect of the present invention: the quantity of protection casing is two and is relative fixed connection at the internal surface of casing, two exhaust fans of the equal fixedly connected with in inside of two protection casings.

As a further aspect of the present invention: the upper surface of the second fixing block is provided with a positioning hole, and the second fixing block is clamped with the plug pin through the positioning hole.

As a further aspect of the present invention: the number of the dampers is set to ten columns and each column is three.

As a further aspect of the present invention: the lower surface of the equalizer box is in lap joint with the upper surface of the damping plate, and the two sides of the equalizer box are fixedly connected with the inner surface of the shell through the transfer block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this novel distribution network three-phase load automatic balancing device through setting up attenuator, buffer board and shock attenuation board, in actual application, through the cooperation between the aforesaid, can cushion the shock attenuation to the vibrations in this device transportation to reduce the vibrations power that acts on the balanced device case, play the purpose of ensureing this device life.

2. This novel distribution network three-phase load automatic balancing device, through setting up the protection casing, the filter screen, the exhaust fan, air intake and exhaust vent, in the application of reality, through the cooperation between the aforesaid, can carry out the heat of blowing heat dissipation to the heat that produces in the equalizer case working process, thereby improve the heat dispersion of this device, avoid the device to work for a long time and generate the condition such as spontaneous combustion, avoided simultaneously that rubbish debris enters into the inside of this device and cause the damage to this device under the effect of filter screen, and then improve the security performance of this device.

3. This novel distribution network three-phase load automatic balancing device through setting up supporting seat, first fixed block, second fixed block, spring, bolt, slide rail and baffle, in the application of reality, through the cooperation between the aforesaid, can install and dismantle this device fast to improve the dismouting efficiency of this device, improve the practicality of this device.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a front view section of the present invention;

FIG. 2 is a three-dimensional structural diagram of the middle housing of the present invention;

FIG. 3 is an enlarged schematic structural view of the position A of the present invention;

in the figure: 1. a housing; 2. a protective cover; 3. an air inlet; 4. an exhaust fan; 5. an air outlet; 6. a partition plate; 7. an equalizer box; 8. a damper plate; 9. a buffer plate; 10. a damper; 11. a slide rail; 12. a supporting seat; 13. a first fixed block; 14. a second fixed block; 15. a dust filter screen; 16. a handle; 17. a spring; 18. a baffle plate; 19. a bolt; 20. a cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a novel three-phase load automatic balancing device for a power distribution network comprises a shell 1, wherein a protective cover 2 is fixedly connected inside the shell 1, a partition plate 6 is fixedly connected inside the protective cover 2, exhaust fans 4 are fixedly connected to the surface of the partition plate 6, an air inlet 3 is formed in one side of the protective cover 2, an air outlet 5 is formed in the other side of the protective cover 2, dust filtering nets 15 are fixedly connected inside the air inlet 3 and the air outlet 5, the two protective covers 2 are fixedly connected to the inner surface of the shell 1 in a relative relationship, and the two exhaust fans 4 are fixedly connected inside the two protective covers 2;

through the arrangement of the protective cover 2, the filter screen, the exhaust fan 4, the air inlet 3 and the air outlet 5, in practical application, heat generated in the working process of the equalizer box 7 can be blown and dissipated through the cooperation of the protective cover, the heat dissipation performance of the device is improved, the device is prevented from generating heat for a long time to generate spontaneous combustion and the like, and meanwhile, under the action of the filter screen, garbage sundries are prevented from entering the device to damage the device, so that the safety performance of the device is improved;

an equalizer box 7 is fixedly connected to the inner surface of the shell 1, two sides of the equalizer box 7 are fixedly connected with the inner surface of the shell 1 through a transfer block, a damper 10 is fixedly connected inside the shell 1, the upper end of the damper 10 is fixedly connected with a buffer plate 9, the upper surface of the buffer plate 9 is fixedly connected with a damping plate 8, and the lower surface of the equalizer box 7 is in lap joint with the upper surface of the damping plate 8;

through the arrangement of the damper 10, the buffer plate 9 and the shock absorption plate 8, in practical application, through the cooperation of the damper and the buffer plate, the shock absorption can be carried out on the shock in the transportation process of the device, so that the shock force acting on the equalizer box 7 is reduced, and the purpose of guaranteeing the service life of the device is achieved;

the lower surface of the shell 1 is fixedly connected with a sliding rail 11, the interior of the sliding rail 11 is slidably connected with a supporting seat 12, the surface of the sliding rail 11 is fixedly connected with a first fixed block 13, the surface of the supporting seat 12 is fixedly connected with a second fixed block 14, a cavity 20 is formed in the first fixed block 13, a baffle plate 18 is slidably connected in the cavity 20, a bolt 19 is fixedly connected in the baffle plate 18, one end of the bolt 19 is fixedly connected with a handle 16, the other end of the bolt 19 is clamped in the second fixed block 14, the upper surface of the second fixed block 14 is provided with a positioning hole, and the second fixed block 14 is clamped with the bolt 19 through the positioning hole;

through setting up supporting seat 12, first fixed block 13, second fixed block 14, spring 17, bolt 19, slide rail 11 and baffle 18, in practical application, through the cooperation between the aforesaid, can install and dismantle this device fast to improve the dismouting efficiency of this device, improve the practicality of this device.

Specifically, the supporting seat 12 is fixedly connected with an external plane.

Specifically, the number of dampers 10 is set to ten columns and each column is three.

The utility model discloses a theory of operation does:

s1, in the moving process of the device, if the device shakes due to uneven ground, firstly, vibration force can act on the shell 1 and the equalizer box 7, then, the vibration force acting on the equalizer box 7 can be transmitted to the damping plate 8, and then, under the action of the damper 10, the damping plate 8 drives the buffer plate 9 to buffer and damp the vibration force, so that the vibration force acting on the equalizer box 7 is weakened, and the purpose of protecting the device is achieved;

s2, in the installation process of the device, the sliding rail 11 on the lower surface of the shell 1 is connected to the surface of the supporting seat 12 in a sliding mode until the positions of the first fixing block 13 and the second fixing block 14 correspond to each other, then the handle 16 at one end of the bolt 19 is loosened, the bolt 19 is automatically inserted into the second fixing block 14 under the matching of the spring 17 and the baffle 18, the first fixing block 13 and the second fixing block 14 are clamped, the sliding rail 11 and the supporting seat 12 are fixed, and therefore the installation of the device can be completed quickly, and the purpose of improving the dismounting efficiency of the device is achieved;

s3, at the in-process that this device used, exhaust fan 4 can rotate in the inside of protection casing 2, then under the effect of air intake 3 and exhaust vent 5, can extract external air conditioning and blow the heat that equalizer case 7 produced to increase the radiating effect of this device, avoid the overheated condition such as spontaneous combustion that takes place of the long-time work of equalizer, improve the security performance of this device and ensure the life of this device.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel distribution network three-phase load automatic balancing device, includes casing (1), its characterized in that: the air conditioner is characterized in that a protective cover (2) is fixedly connected to the inside of the shell (1), a partition plate (6) is fixedly connected to the inside of the protective cover (2), an exhaust fan (4) is fixedly connected to the surface of the partition plate (6), an air inlet (3) is formed in one side of the protective cover (2), an air outlet (5) is formed in the other side of the protective cover (2), dust filter nets (15) are fixedly connected to the insides of the air inlet (3) and the air outlet (5), an equalizer box (7) is fixedly connected to the inner surface of the shell (1), a damper (10) is fixedly connected to the inside of the shell (1), a buffer plate (9) is fixedly connected to the upper end of the damper (10), a damping plate (8) is fixedly connected to the upper surface of the buffer plate (9), and a sliding rail (11) is, the inside sliding connection of slide rail (11) has supporting seat (12), the fixed surface of slide rail (11) is connected with first fixed block (13), the fixed surface of supporting seat (12) is connected with second fixed block (14), cavity (20) have been seted up to the inside of first fixed block (13), the inside sliding connection of cavity (20) has baffle (18), the inside fixedly connected with bolt (19) of baffle (18), the one end fixedly connected with handle (16) of bolt (19), the other end joint of bolt (19) is in the inside of second fixed block (14).

2. The novel automatic balancing device for three-phase loads of the power distribution network according to claim 1, is characterized in that: the supporting seat (12) is fixedly connected with an external plane.

3. The novel automatic balancing device for three-phase loads of the power distribution network according to claim 1, is characterized in that: the quantity of protection casing (2) is two and is relative fixed connection at the internal surface of casing (1), two exhaust fans (4) of the equal fixedly connected with in inside of two protection casings (2).

4. The novel automatic balancing device for three-phase loads of the power distribution network according to claim 1, is characterized in that: the upper surface of the second fixing block (14) is provided with a positioning hole, and the second fixing block (14) is clamped with the bolt (19) through the positioning hole.

5. The novel automatic balancing device for three-phase loads of the power distribution network according to claim 1, is characterized in that: the number of the dampers (10) is set to ten columns and each column is three.

6. The novel automatic balancing device for three-phase loads of the power distribution network according to claim 1, is characterized in that: the lower surface of equalizer case (7) and the upper surface looks overlap joint of shock attenuation board (8), the internal surface fixed connection of adapter block and casing (1) is passed through to the both sides of equalizer case (7).