CN220964138U

CN220964138U - Grid-connected cabinet reserved with metering lead sealing chamber

Info

Publication number: CN220964138U
Application number: CN202323026540.0U
Authority: CN
Inventors: 张亮; 范卜
Original assignee: Baoding Shenghe Electric Technology Co ltd
Current assignee: Baoding Shenghe Electric Technology Co ltd
Priority date: 2023-11-09
Filing date: 2023-11-09
Publication date: 2024-05-14
Anticipated expiration: 2033-11-09

Abstract

The utility model discloses a grid-connected cabinet reserved with a metering lead sealing chamber, which comprises a grid-connected cabinet body, wherein cabinet doors are respectively arranged at the front and the rear of the grid-connected cabinet body, the grid-connected cabinet body is divided into an upper part, a middle part and a lower part, cabinet body upright posts are vertically arranged at corners of the grid-connected cabinet body, and a plurality of cabinet body cross posts are connected between the cabinet body upright posts; four lead sealing brackets are fixedly arranged on the cabinet body cross column, a transformer lead sealing chamber box body is welded between the lead sealing brackets at the middle part of the grid-connected cabinet body, and a metering chamber is reserved at the middle part of the grid-connected cabinet body through a cabinet wall and a partition plate; the rear walls of the metering chamber and the lead sealing chamber of the transformer are correspondingly provided with wire passing holes for connecting wires; the bottom of the grid-connected cabinet body is provided with a heat dissipation and ventilation mechanism for cooling the inside of the grid-connected cabinet body. The metering lead sealing chamber is produced along with the cabinet, so that the secondary transformation during the installation of the later metering device is avoided, the installation is convenient, the structure is simple and firm, the safety performance is high, and the heat dissipation effect is improved.

Description

Grid-connected cabinet reserved with metering lead sealing chamber

Technical Field

The utility model relates to the technical field of electrical cabinets, in particular to a grid-connected cabinet reserved with a metering lead sealing chamber.

Background

When two or more generator sets are combined together to supply power to a load or one or more generator sets are combined together to supply power to a power grid, a grid-connected cabinet is needed to be additionally arranged, and the system can meet the requirement of combined power supply, so that the generator works normally.

The existing grid-connected cabinet has no independent installation space reserved for the metering device and the metering transformer structure, so that the safety is poor, and the metering safety performance of an electric company cannot be protected. For example, the Chinese patent with the application number of 202320156139.X discloses a photovoltaic grid-connected cabinet, which comprises a cabinet body, wherein an upper cabinet door, a middle cabinet door and a lower cabinet door are sequentially arranged on the front end surface of the cabinet body from top to bottom; the cabinet is internally provided with a mounting rack, and the mounting rack is used for mounting the photovoltaic electrical component. The photovoltaic grid-connected cabinet is simple in structure, the photovoltaic electrical components are mounted on the transverse mounting frame, and when the photovoltaic electrical components need to be replaced or maintained, the photovoltaic grid-connected cabinet is convenient to detach the single components, and the condition that the overhaul operation of staff is affected due to the fact that the space in the cabinet body is small is avoided. However, the utility model directly installs the electric component on the mounting frame, and workers need to find the position to install the lead sealing chamber additionally when installing the metering device, and the lead sealing requirement can be met by repeated construction after re-routing the secondary line. In addition, the ventilation and heat dissipation are carried out only through the plurality of ventilation holes on the ventilation door arranged below the lower cabinet door, so that the heat dissipation effect is poor.

Therefore, there is a need to develop a grid-tie cabinet with a metering lead seal chamber reserved for the above drawbacks.

Disclosure of utility model

The utility model aims to provide a grid-connected cabinet reserved with a metering lead sealing chamber, wherein the metering lead sealing chamber is completed along with the production of the cabinet, so that the re-transformation of a later metering device during installation is avoided, the installation is convenient, the structure is simple and firm, the safety performance is high, and the heat dissipation effect is improved.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model discloses a grid-connected cabinet reserved with a metering lead sealing chamber, which comprises grid-connected cabinet bodies, wherein cabinet doors are respectively arranged at the front and rear sides of the grid-connected cabinet bodies, the grid-connected cabinet bodies are divided into an upper part, a middle part and a lower part, cabinet body upright posts are vertically arranged at corners of the grid-connected cabinet bodies, a plurality of cabinet body transverse posts which are horizontally arranged in parallel are connected between the cabinet body upright posts, and the back parts of the cabinet body transverse posts are tightly attached to the side walls of the grid-connected cabinet bodies. Four vertically arranged lead sealing brackets are fixedly connected to the inner side of the cabinet body cross column, the transformer lead sealing chamber is arranged at the middle part of the grid-connected cabinet body, the lead sealing brackets are respectively welded at four corners of the box body of the transformer lead sealing chamber, and a metering chamber is reserved at the middle part of the grid-connected cabinet body through a cabinet wall and a partition plate; the rear walls of the metering chamber and the lead sealing chamber of the transformer are correspondingly provided with wire passing holes for connecting wires; the bottom of the grid-connected cabinet body is provided with a heat dissipation and ventilation mechanism for cooling the inside of the grid-connected cabinet body.

Further, the transformer lead sealing chamber comprises a copper bar passing port, a baffle plate, an ear plate and a transformer lead sealing chamber door; the lead sealing chamber door of the transformer faces to the rear of the grid-connected cabinet body; the copper bar passing openings are formed in the top and the bottom of the transformer lead sealing chamber, and two ends of the partition plate are respectively fixed on two side walls of the transformer lead sealing chamber and close to the rear wall of the transformer lead sealing chamber; the ear plate is fixed on the side wall of the transformer lead sealing chamber close to the transformer lead sealing chamber door, and lead sealing holes are correspondingly arranged on the ear plate and the transformer lead sealing chamber door; and a first transparent insulation shield is further arranged at the middle position of the lead sealing chamber door of the transformer. The first transparent insulation shield and the second transparent insulation shield specifically adopt an acrylic plate.

Further, the metering chamber comprises a metering chamber door, a second transparent insulating shield and a lead sealing lock; the metering chamber is provided with a metering chamber door, a second transparent insulation shield is arranged in the middle of the metering chamber door, and a lead sealing lock is arranged at the door edge of the metering chamber door.

Further, the heat dissipation and ventilation mechanism comprises a ventilation filter cover, dust removal cotton and a fan; the ventilation filter cover is installed on the grid-connected cabinet bottom plate, dust removing cotton is installed at the bottom of the ventilation filter cover, and the fan is installed at the middle position inside the ventilation filter cover.

Furthermore, a plurality of vent holes which are uniformly distributed are formed in the bottoms of the front wall and the rear wall of the grid-connected cabinet body in a penetrating manner; the rear door is arranged at the rear of the grid-connected cabinet body, and a plurality of exhaust holes which are uniformly distributed are formed in the top of the rear door in a penetrating mode.

Furthermore, the lead sealing support is of a groove structure, and a plurality of mounting through holes are uniformly formed in the bottom and two sides of the lead sealing support.

Furthermore, a plurality of transverse electric element installation frames are fixedly installed on the lead sealing support, two ends of each electric element installation frame are inserted into the middle groove of the lead sealing support, and the electric element installation frames are fixed with the installation through holes through screws.

Compared with the prior art, the utility model has the beneficial technical effects that:

the utility model supports the whole grid-connected cabinet body through the cabinet body upright posts and the cabinet body transverse posts, so that the structure is simple but firm. Meanwhile, the reserved metering chamber and the transformer lead sealing chamber welded in the grid-connected cabinet avoid the reconstruction of the later metering device during installation, and the installation is more convenient. The safety and the accuracy of the metering instrument can be ensured by lead sealing.

In addition, set up the heat dissipation ventilation mechanism on the cabinet bottom plate that is incorporated into the power networks, blow from the cabinet bottom that is incorporated into the power networks to inside through the fan, the exhaust hole of rethread top discharges steam, accelerates the inside air cycle of cabinet that is incorporated into the power networks, improves the radiating effect of cabinet that is incorporated into the power networks, simultaneously, the dust removal cotton can effectively prevent that the dust in the air from getting into the cabinet that is incorporated into the power networks, influences the normal work of the inside electrical component of cabinet that is incorporated into the power networks.

Drawings

The utility model is further described with reference to the following description of the drawings.

FIG. 1 is a schematic diagram of a side cross-sectional structure of a grid-connected cabinet reserved with a metering lead sealing chamber;

FIG. 2 is a schematic diagram of a rear view structure of a grid-connected cabinet reserved with a metering lead sealing chamber according to the utility model;

FIG. 3 is a front view of a grid-tie cabinet of the present utility model with a metering lead seal chamber reserved;

fig. 4 is a schematic diagram of a three-dimensional structure of a lead sealing chamber of the transformer;

Fig. 5 is a schematic perspective view of a lead sealing bracket of the utility model.

Reference numerals illustrate: 1. a grid-connected cabinet body; 2. a cabinet column; 3. a cabinet body cross column; 4. a lead sealing bracket; 401. mounting through holes; 5. an electrical component mounting rack; 6. a lead sealing chamber of the transformer; 601. the copper bar passes through the discharge port; 602. a partition plate; 603. a wire through hole; 604. ear plates; 605. sealing holes with lead; 606. a lead sealing room door of the transformer; 607. a first transparent insulating shield; 7. a metering chamber; 701. a metering chamber door; 702. a second transparent insulating shield; 703. lead sealing; 8. a heat dissipation and ventilation mechanism; 801. a ventilation filter cover; 802. dust removing cotton; 803. a blower; 9. a vent hole; 10. a rear door; 11. and an exhaust hole.

Detailed Description

The utility model has the core of providing the grid-connected cabinet reserved with the metering lead sealing chamber, the metering lead sealing chamber is completed along with the production of the cabinet, the reconstruction of the later metering device during installation is avoided, the installation is convenient, the structure is simple and firm, the safety performance is high, and the heat dissipation effect is improved.

The following description of the embodiments of the present utility model will be made in detail with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to the drawings, FIG. 1 is a schematic side view of a grid-connected cabinet reserved with a metering lead sealing chamber according to the present utility model; FIG. 2 is a schematic diagram of a rear view structure of a grid-connected cabinet reserved with a metering lead sealing chamber according to the present utility model; FIG. 3 is a front view of a grid-connected cabinet with a metering lead sealing chamber reserved in the front view; fig. 4 is a schematic diagram of a three-dimensional structure of a lead sealing chamber of the transformer; fig. 5 is a schematic perspective view of a lead sealing bracket of the utility model.

In a specific embodiment, as shown in fig. 1-3, the grid-connected cabinet comprises a grid-connected cabinet body 1, wherein cabinet doors are respectively arranged at the front and rear sides of the grid-connected cabinet body 1, the grid-connected cabinet body 1 is divided into an upper part, a middle part and a lower part, cabinet body upright posts 2 are vertically arranged at corners of the grid-connected cabinet body 1, and a plurality of cabinet body transverse posts 3 which are horizontally arranged in parallel are connected between the cabinet body upright posts 2; the back of the cabinet body cross column 3 is tightly attached to the side wall of the grid-connected cabinet body 1. Four vertically arranged lead sealing brackets 4 are fixedly connected to the inner side of the cabinet body cross column 3, a transformer lead sealing chamber 6 is arranged at the middle part of the grid-connected cabinet body 1, four corners of the box body of the transformer lead sealing chamber are respectively welded and connected with the lead sealing brackets 4, and a metering chamber 7 is reserved at the middle part of the grid-connected cabinet body 1 through a cabinet wall and a partition plate; the rear walls of the metering chamber 7 and the transformer lead sealing chamber 6 are respectively provided with a wire through hole 603 for connecting wires; the bottom of the grid-connected cabinet body 1 is provided with a heat dissipation and ventilation mechanism 8 for cooling the inside of the grid-connected cabinet body 1.

It should be noted that, three cabinet doors are provided in front of the grid-connected cabinet body 1, and two cabinet doors are provided in the rear. The front uppermost cabinet door is provided with a multifunctional meter, a signal indicator lamp, an operation knob and an anti-islanding device. The middle door is a metering chamber door 701, and an electric meter frame and a negative control meter frame are arranged on the inner wall of the metering chamber 7.

The whole grid-connected cabinet body 1 is supported by the cabinet body upright posts 2 and the cabinet body transverse posts 3, so that the structure is simple but firm. Meanwhile, through the reserved metering chamber 7 and the transformer lead sealing chamber 6 welded in the grid-connected cabinet, the secondary transformation during the installation of the later metering device is avoided, and the installation is more convenient. The safety and the accuracy of the metering instrument can be ensured by lead sealing.

In one embodiment, as shown in fig. 4, the transformer lead enclosure 6 includes a copper bar vent 601, a baffle 602, an ear plate 604, and a transformer lead enclosure door 606; the lead sealing chamber door 606 of the transformer faces to the rear of the grid-connected cabinet body 1; copper bar passing openings 601 are formed in the top and bottom of the transformer lead sealing chamber 6, and two ends of a baffle 602 are respectively fixed on two side walls of the transformer lead sealing chamber 6 and are close to the rear wall of the transformer lead sealing chamber 6; the ear plate 604 is fixed on the side wall of the transformer lead sealing chamber 6, which is close to the transformer lead sealing chamber door 606, and lead sealing holes 605 are correspondingly arranged on the ear plate 604 and the transformer lead sealing chamber door 606; a first transparent insulation shield 607 is also provided in the middle of the transformer lead sealing room door 606. The copper bar passing hole 601 can enable the transformer lead sealing chamber 6 to be connected with the upper and lower electrical elements, the partition plate 602 can separate wires entering the transformer lead sealing chamber 6 through the wire passing hole 603 from wires inside the transformer lead sealing chamber 6, and the wires are prevented from being intertwined to influence maintenance. The lead seal 605 is fixed using a lead seal bolt. Through the first transparent insulating shield 607, the inside condition of the transformer lead sealing chamber 6 is conveniently observed by the staff.

In one embodiment, as shown in FIG. 3, the metering chamber 7 includes a metering chamber door 701, a second transparent insulating shield 702, and a lead lock 703; the measuring chamber 7 is provided with a measuring chamber door 701, a second transparent insulation shield 702 is arranged in the middle of the measuring chamber door 701, and a lead sealing lock 703 is arranged at the door edge of the measuring chamber door 701. Through the second transparent insulating shield 607, the staff can observe the internal condition of the measuring chamber 7 conveniently. The first transparent insulating shield 607 and the second transparent insulating shield 702 specifically adopt acrylic plates, and have the characteristics of good light transmission performance, pure color, rich color, attractive and smooth appearance, two effects at day and night, long service life, no influence on use and the like.

In one embodiment, as shown in fig. 1, the heat dissipation and ventilation mechanism 8 includes a ventilation filter cover 801, dust removal cotton 802, and a fan 803; the ventilation filter cover 801 is arranged on the bottom plate of the grid-connected cabinet, dust removing cotton 802 is arranged at the bottom of the ventilation filter cover 801, and a fan 803 is arranged at the middle position inside the ventilation filter cover 801.

Specifically, a plurality of vent holes 9 which are uniformly distributed are formed in the bottoms of the front wall and the rear wall of the grid-connected cabinet body 1 in a penetrating manner; a rear door 10 is arranged at the rear of the grid-connected cabinet body 1, and a plurality of exhaust holes 11 which are uniformly distributed are formed in the top of the rear door 10 in a penetrating manner.

The cooling is performed inside the grid-connected cabinet body 1 through the cooling ventilation mechanism 8, external air is blown into the grid-connected cabinet body 1 from the vent hole 9 at the bottom of the grid-connected cabinet through the fan 803, and hot air is discharged through the vent hole 11 at the top, so that air circulation inside the grid-connected cabinet is accelerated, the cooling effect of the grid-connected cabinet is improved, and meanwhile, dust in the air can be effectively prevented from entering the grid-connected cabinet through the dust removing cotton 802, and the normal work of electric elements inside the grid-connected cabinet is affected.

In a specific embodiment, as shown in fig. 1 and 5, the lead sealing support 4 has a groove structure, and a plurality of mounting through holes 401 are uniformly formed at the bottom and two sides of the lead sealing support 4 and are fixedly connected with the cabinet upright 2 and the electrical installation frame 5 through bolts.

Specifically, the lead sealing bracket 4 is fixedly provided with a plurality of transverse electrical component mounting frames 5, and two ends of the electrical component mounting frames 5 are inserted into the middle grooves of the lead sealing bracket 4 and are fixed with the mounting through holes 401 through screws. By inserting both ends of the electrical component mounting block 5 into the lead sealing bracket 4, the electrical component mounting block 5 can be more stably fixed, thereby facilitating the mounting of the electrical component on the electrical component mounting block 5.

The working principle of the utility model is as follows: the measuring instrument is arranged on the meter frame on the inner wall of the measuring chamber 7 through a fastener, the measuring instrument is connected with the transformer in the transformer lead sealing chamber 6 through a wire through hole 603, and the transformer in the transformer lead sealing chamber 6 is connected with external electrical elements through a copper bar through hole 601. After the connection is installed, the transformer lead sealing chamber door 606 and the measuring chamber door 701 are closed, and the transformer lead sealing chamber 6 and the measuring chamber 7 are respectively sealed by lead sealing holes 605 and lead sealing locks 703. And then installing other electrical elements in the grid-connected cabinet, and closing the front cabinet door and the rear cabinet door of the grid-connected cabinet after the installation is completed. The fan 803 is started, external air is blown into the grid-connected cabinet body 1 from the vent hole 9 at the bottom of the grid-connected cabinet through the fan 803, and hot air is discharged through the vent hole 11 at the top, so that air circulation in the grid-connected cabinet is accelerated.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims

1. The utility model provides a reserve and have a cabinet that is incorporated in power networks of measurement lead sealing room, is provided with cabinet door (1) that is incorporated in power networks around, cabinet body (1) are divided into upper, middle, lower three part, its characterized in that: the grid-connected cabinet comprises a grid-connected cabinet body (1), wherein cabinet body columns (2) are vertically arranged at corners of the grid-connected cabinet body (1), a plurality of cabinet body cross columns (3) which are horizontally arranged in parallel are connected between the cabinet body columns (2), and the back of each cabinet body cross column (3) is tightly attached to the side wall of the grid-connected cabinet body (1); four vertically arranged lead sealing brackets (4) are fixedly connected to the inner side of the cabinet body cross column (3), a transformer lead sealing chamber (6) is arranged at the middle part of the grid-connected cabinet body (1), four corners of the box body of the transformer lead sealing chamber (6) are respectively welded and connected with the lead sealing brackets (4), and a metering chamber (7) is reserved at the middle part of the grid-connected cabinet body (1) through a cabinet wall and a partition plate; the rear walls of the metering chamber (7) and the transformer lead sealing chamber (6) are respectively provided with a wire through hole (603) for connecting wires correspondingly; the cooling and ventilating mechanism (8) for cooling the inside of the grid-connected cabinet body (1) is arranged at the bottom of the grid-connected cabinet body (1).

2. The grid-tie cabinet with a metering lead seal chamber reserved according to claim 1, wherein: the transformer lead sealing chamber (6) comprises a copper bar passing outlet (601), a baffle plate (602), an ear plate (604) and a transformer lead sealing chamber door (606); the transformer lead sealing chamber door (606) faces to the rear of the grid-connected cabinet body (1); the copper bar passing hole (601) is formed in the top and the bottom of the transformer lead sealing chamber (6), and two ends of the partition plate (602) are respectively fixed on two side walls of the transformer lead sealing chamber (6) and are close to the rear wall of the transformer lead sealing chamber (6); the ear plate (604) is fixed on the side wall of the transformer lead sealing chamber (6) close to the transformer lead sealing chamber door (606), and lead sealing holes (605) are correspondingly arranged on the ear plate (604) and the transformer lead sealing chamber door (606); the middle position of the transformer lead sealing room door (606) is also provided with a first transparent insulation shield (607).

3. The grid-tie cabinet with a metering lead seal chamber reserved according to claim 2, wherein: the metering chamber (7) comprises a metering chamber door (701), a second transparent insulation shield (702) and a lead seal lock (703); a metering chamber door (701) is arranged on the metering chamber (7), a second transparent insulation shield (702) is arranged in the middle of the metering chamber door (701), and a lead lock (703) is arranged at the door edge of the metering chamber door (701); the first transparent insulating shield (607) and the second transparent insulating shield (702) are specifically made of acrylic plates.

4. The grid-tie cabinet with a metering lead seal chamber reserved according to claim 1, wherein: the heat dissipation and ventilation mechanism (8) comprises a ventilation filter cover (801), dust removal cotton (802) and a fan (803); the ventilation filter cover (801) is arranged on a grid-connected cabinet bottom plate, dust removing cotton (802) is arranged at the bottom of the ventilation filter cover (801), and the fan (803) is arranged at the middle position inside the ventilation filter cover (801).

5. The grid-tie cabinet with a metering lead sealing chamber reserved according to claim 4, wherein: the bottoms of the front wall and the rear wall of the grid-connected cabinet body (1) are provided with a plurality of uniformly distributed vent holes (9) in a penetrating way; the rear door (10) is arranged at the rear of the grid-connected cabinet body (1), and a plurality of exhaust holes (11) which are uniformly distributed are formed in the top of the rear door (10) in a penetrating mode.

6. The grid-tie cabinet with a metering lead seal chamber reserved according to claim 1, wherein: the lead sealing support (4) is of a groove type structure, and a plurality of mounting through holes (401) are uniformly formed in the bottom and two sides of the lead sealing support (4).

7. The grid-tie cabinet with a metering lead seal chamber reserved according to claim 6, wherein: the lead sealing support (4) is fixedly provided with a plurality of transverse electric element installation frames (5), two ends of each electric element installation frame (5) are inserted into the middle grooves of the lead sealing support (4), and the electric element installation frames are fixed with the installation through holes (401) through screws.