阅读说明：本技术 低压开关柜及箱式变电站 (Low-voltage switch cabinet and box-type substation ) 是由 黄晓龙 田春生 张宏建 王言德 李龙 于 2019-12-06 设计创作，主要内容包括：本发明提供了一种低压开关柜及箱式变电站,涉及配电柜的技术领域,包括柜体本体和安装部；柜体本体内设置有用于安装主断路器的第一安装空间,后背板上开设有与第一安装空间连通的安装口；安装部与柜体本体铰接,安装部、柜体本体和柜门之间围设形成与第一安装空间连通的第二安装空间,安装部配置为在向远离柜门的方向转动时,能够使得操作人员的手臂穿过第二安装空间伸入到第一安装空间内并触及主断路器上的铜线排安装位置。相对于两人同时站在变压器隔室内的安装方式,两位操作人员的可活动空间更大,更便于铜线排的安装；且只需要一位操作人员的手臂穿过后背板上的安装口,后背板上安装口可以做的更小,提高了开关柜的防护等级。(The invention provides a low-voltage switch cabinet and a box-type substation, and relates to the technical field of power distribution cabinets, wherein the low-voltage switch cabinet and the box-type substation comprise a cabinet body and an installation part; a first mounting space for mounting a main circuit breaker is arranged in the cabinet body, and a mounting opening communicated with the first mounting space is formed in the rear back plate; the installation department is articulated with cabinet body, encloses between installation department, cabinet body and the cabinet door and establishes the second installation space that forms and first installation space intercommunication, and the installation department configuration is when rotating to the direction of keeping away from the cabinet door, can make operating personnel's arm pass the second installation space and stretch into in the first installation space and touch the copper line row mounted position on the main circuit breaker. Compared with the installation mode that two persons stand in the transformer compartment at the same time, the movable space of two operators is larger, and the installation of the copper wire row is more convenient; and only one operator's arm is needed to pass through the mounting port on the back plate, and the mounting port on the back plate can be made smaller, so that the protection grade of the switch cabinet is improved.)

1. A low-voltage switchgear cabinet, comprising: a cabinet body (100) and a mounting portion (200);

a back plate (400) and a cabinet door (300) which are used for sealing the cabinet body (100) are respectively installed on two sides of the cabinet body (100), a first installation space (110) for installing a main circuit breaker is arranged in the cabinet body (100), and an installation opening (410) communicated with the first installation space (110) is formed in the back plate (400);

installation department (200) set up in backplate (400) with between cabinet door (300), just installation department (200) with cabinet body (100) are articulated, installation department (200) cabinet body (100) with enclose between cabinet door (300) establish form with the second installation space of first installation space (110) intercommunication, installation department (200) configuration is in to keeping away from when the direction of cabinet door (300) is rotated, can make operating personnel's arm pass the second installation space stretches into in the first installation space (110) and touch copper line row mounted position on the main circuit breaker.

2. The low-voltage switchgear cabinet according to claim 1, wherein the mounting portion (200) comprises a first mounting plate (210) and a locking member (220) fixedly connected to the first mounting plate (210);

the first mounting plate (210) is arranged above the first mounting space (110) and hinged to the cabinet body (100), and the locking piece (220) is used for limiting the first mounting plate (210) to rotate relative to the cabinet body (100).

3. Low-voltage switchgear cabinet according to claim 2, characterized in that said blocking member (220) comprises a bolt body (221) and a mobile bolt (222) cooperating with said bolt body (221);

the lock bolt body (221) is mounted on the first mounting plate (210), a fixing groove is formed in the cabinet body (100), and one end, extending out of the lock bolt body (221), of the movable bolt (222) can extend into the fixing groove.

4. The low-voltage switchgear cabinet according to claim 2, further comprising a metering assembly (500), wherein the metering assembly (500) is mounted on the first mounting plate (210).

5. Low-voltage switchgear cabinet according to claim 4, characterized in that said first mounting plate (210) is provided with a first mounting hole (211), and a first connector cooperates with said first mounting hole (211) to fix said metering assembly (500) to said first mounting plate (210).

6. The low-voltage switch cabinet according to claim 5, characterized in that the first mounting holes (211) are provided in plurality, and the first mounting holes (211) are all arranged in a cross shape.

7. The low-voltage switch cabinet according to claim 5, characterized in that an insulation wire slot (600) is further arranged on the first mounting plate (210), and a connecting wire passes through the insulation wire slot (600) to be connected with the metering assembly (500).

8. Low-voltage switchgear cabinet according to claim 7, characterized in that a second connection cooperates with said first mounting hole (211) to fix said insulating trunking (600) to said first mounting plate (210).

9. Low-voltage switchgear cabinet according to claim 1, characterized in that a second mounting plate (700) is provided in the first mounting space (110);

the second mounting panel (700) with cabinet body (100) are connected, be provided with on second mounting panel (700) and be used for the installation main circuit breaker's second mounting hole.

10. A box substation, characterized in that it comprises a low-voltage switchgear cabinet according to any of claims 1 to 9.

Technical Field

The invention relates to the technical field of power distribution cabinets, in particular to a low-voltage switch cabinet and a box-type substation.

Background

A box-type substation, also called a pre-installed substation or a pre-installed substation, is a power transformation apparatus integrating a high-voltage power distribution device, a transformer and a low-voltage power distribution device. Generally, in order to meet the protection level, an outer box of a box-type substation is divided into three independent compartments by partition plates or partition walls, a high-voltage distribution device, a transformer and a low-voltage distribution device are respectively arranged in the three compartments, and a high voltage input by the high-voltage distribution device is output to the low-voltage distribution device through the transformation action of the transformer.

The low-voltage distribution device is integrated in the low-voltage switch cabinet body, and the transformer passes through the copper line and is connected with the main circuit breaker in the low-voltage switch cabinet, because the mounted position of copper line is in cabinet door one side that main circuit breaker deviates from the low-voltage switch cabinet, through opening the cabinet door, the mounted position of copper line row can't be seen to operating personnel, and operating personnel's both hands also can't touch the mounted position of copper line row.

Based on current switch board structure, need two at least constructors stand in the compartment of placing the transformer, the copper line row that alone handheld transformer was drawn forth makes it pass opening on the baffle and the opening of low-voltage switchgear backplate in proper order to make the copper line row arrive the hookup location on the main circuit breaker, alone in addition hand the fastening bolt also must pass opening on the baffle and the opening of low-voltage switchgear backplate in proper order with copper line row fix on main circuit breaker.

More than synthesizing, the structure of current low-voltage switchgear makes the copper line arrange the unusual difficulty with being connected of main circuit breaker, and opens the opening on baffle and the low-voltage switchgear backplate very big often for convenient operation, greatly reduced the safety protection grade.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a low-voltage switch cabinet and a box-type substation, so as to solve the technical problems that the installation of a copper wire bar is difficult and the safety protection grade is poor due to the structure of the conventional low-voltage switch cabinet.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

the invention provides a low-voltage switch cabinet, which comprises a cabinet body and a mounting part;

a rear back plate and a cabinet door which are used for sealing the cabinet body are respectively installed on two sides of the cabinet body, a first installation space for installing a main circuit breaker is arranged in the cabinet body, and an installation opening communicated with the first installation space is formed in the rear back plate;

the installation department set up in the backplate with between the cabinet door, just the installation department with cabinet body is articulated, the installation department the cabinet body with enclose between the cabinet door establish form with the second installation space of first installation space intercommunication, the installation department configuration is in to keeping away from when the direction of cabinet door rotates, can make operating personnel's arm pass the second installation space stretches into in the first installation space and touch copper line row mounted position on the main circuit breaker.

Further, the mounting part comprises a first mounting plate and a locking piece fixedly connected to the first mounting plate;

the first mounting plate is arranged above the first mounting space and hinged to the cabinet body, and the locking piece is used for limiting the first mounting plate to rotate relative to the cabinet body.

Further, the locking piece comprises a lock bolt body and a movable bolt matched with the lock bolt body;

the lock bolt body is installed on the first installation plate, a fixing groove is formed in the cabinet body, and one end, extending out of the lock bolt body, of the movable bolt can extend into the fixing groove.

Furthermore, the low-voltage switch cabinet further comprises a metering assembly, and the metering assembly is installed on the first installation plate.

Furthermore, a first mounting hole is formed in the first mounting plate, and a first connecting piece is matched with the first mounting hole so as to fix the metering assembly on the first mounting plate.

Furthermore, first mounting hole sets up to a plurality of, and is a plurality of first mounting hole all is the setting of cross.

Furthermore, an insulating wire slot is further formed in the first mounting plate, and a connecting wire penetrates through the insulating wire slot and is connected with the metering assembly.

Furthermore, a second connecting piece is matched with the first mounting hole so as to fix the insulating wire slot on the first mounting plate.

Further, a second mounting plate is arranged in the first mounting space;

the second mounting panel with this body coupling of cabinet body, be provided with on the second mounting panel and be used for the installation the second mounting hole of main circuit breaker.

The box-type substation provided by the invention comprises the low-voltage switch cabinet.

By combining the technical scheme, the invention has the beneficial effects that:

the invention provides a low-voltage switch cabinet, which comprises a cabinet body and a mounting part; a rear back plate and a cabinet door which are used for sealing the cabinet body are respectively arranged on two sides of the cabinet body, a first mounting space for mounting a main circuit breaker is arranged in the cabinet body, and a mounting opening communicated with the first mounting space is formed in the rear back plate; the installation department sets up between backplate and cabinet door, and the installation department is articulated with cabinet body, encloses between installation department, cabinet body and the cabinet door and establishes the second installation space that forms and first installation space intercommunication, and the installation department configuration is when rotating to the direction of keeping away from the cabinet door, can make operating personnel's arm pass the second installation space and stretch into in the first installation space and touch the copper line row mounted position on the main circuit breaker.

Because the rear back plate is provided with the mounting opening communicated with the first mounting space, the mounting part is hinged with the cabinet body, and after the mounting part rotates in the direction away from the cabinet door, the arm of an operator can penetrate through the second mounting space to extend into the first mounting space and touch the mounting position of the copper wire row on the main circuit breaker; and only one operator's arm is needed to pass through the mounting port on the back plate, and the mounting port on the back plate can be made smaller, so that the protection grade of the switch cabinet is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a front view of a low-voltage switchgear provided in an embodiment of the present invention;

fig. 2 is a schematic diagram of an internal structure of a low-voltage switch cabinet according to an embodiment of the present invention;

fig. 3 is a side view of a low-voltage switchgear provided in an embodiment of the present invention;

fig. 4 is an enlarged schematic view of a structure in fig. 3.

Icon: 100-cabinet body; 110 — a first installation space; 120-fixed block; 200-a mounting portion; 210-a first mounting plate; 211 — a first mounting hole; 220-a lock; 221-a latch body; 222-moving the peg; 300-a cabinet door; 400-a back panel; 410-mounting port; 500-a metering assembly; 600-an insulating wire slot; 700-second mounting plate.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the present embodiment provides a low voltage switch cabinet, including a cabinet body 100 and a mounting portion 200; a back plate 400 and a cabinet door 300 for sealing the cabinet body 100 are respectively installed on two sides of the cabinet body 100, a first installation space 110 for installing a main circuit breaker is arranged in the cabinet body 100, and an installation opening 410 communicated with the first installation space 110 is formed in the back plate 400; installation department 200 sets up between backplate 400 and cabinet door 300, and installation department 200 is articulated with cabinet body 100, encloses between installation department 200, cabinet body 100 and the cabinet door 300 and establishes the second installation space that forms and communicate with first installation space 110, installation department 200 configuration is when rotating to the direction of keeping away from cabinet door 300, can make operating personnel's arm pass through the second installation space and stretch into in first installation space 110 and touch the copper line row mounted position on the main circuit breaker.

Specifically, the cabinet body 100 includes a cabinet frame, and an upper bottom plate, a lower bottom plate, a left side plate, a right side plate, a cabinet door 300 disposed at the front of the cabinet frame, and a back plate 400 disposed at the back of the cabinet frame; the first installation space 110 is an accommodation space in the cabinet body 100, the main circuit breaker is installed in the first installation space 110, and an installation position of a copper wire row is arranged on one side of the main circuit breaker, which is close to the rear back plate 400; the mounting part 200 is preferably disposed above the first mounting space 110, the mounting part 200 is disposed between the cabinet door 300 and the back plate 400, the mounting part 200 may be configured as a mounting bracket or a mounting plate, and one end of the mounting part 200 is hinged to a side plate of the cabinet body 100 through a hinge or a hinge, so that the mounting part 200 can rotate relative to the cabinet body 100; the rotation of installation department 200 has directly changed the size of second installation space, and when installation department 200 rotated to the direction of keeping away from cabinet door 300, second installation space crescent, and is opposite, and installation department 200 when rotating to the direction of being close to cabinet door 300, second installation space reduces gradually.

In the process of installing the copper wire row, the cabinet door 300 is opened first, and then the installation part 200 is rotated to the direction close to the backboard 400 as much as possible, for example, the installation part 200 is rotated to the end far away from the hinge point to abut against the backboard 400, so that the operation space between the installation part 200 and the cabinet door 300 is the largest; a hand-held copper wire of operating personnel in the transformer compartment of one position department is arranged and is passed opening on the baffle and installing port 410 on the back plate 400 in proper order, with the mounted position on delivering to main circuit breaker of copper wire row, in the low-voltage switchgear compartment of another position department and the handheld fastening bolt of operating personnel who is located cabinet door 300 one side passed second installation space and stretched into first installation space 110, in order to arrange the fastening of copper wire on main circuit breaker, in the different compartments of two operating personnel department respectively, it is more convenient nimble to operate.

In the low-voltage switch cabinet provided by the embodiment, as the mounting opening 410 communicated with the first mounting space 110 is formed in the rear back plate 400, the mounting part 200 is hinged to the cabinet body 100, after the mounting part 200 rotates in the direction away from the cabinet door 300, the arm of an operator can penetrate through the second mounting space to extend into the first mounting space 110 and touch the mounting position of the copper wire row on the main circuit breaker, two operators can respectively stand at one side of the cabinet door 300 and in the transformer compartment to mount the copper wire row, and compared with a mounting mode that two operators simultaneously stand in the transformer compartment, the movable space of the two operators is larger, so that the copper wire row can be mounted more conveniently; and only one operator's arm is needed to pass through the mounting opening 410 on the backboard 400, the mounting opening 410 on the backboard 400 can be made smaller, and the protection grade of the switch cabinet is improved.

On the basis of the above embodiment, further, the mounting portion 200 in the low-voltage switch cabinet provided in this embodiment includes a first mounting plate 210 and a locking member 220 fixedly connected to the first mounting plate 210; the first mounting plate 210 is disposed above the first mounting space 110 and hinged to the cabinet body 100, and the locking member 220 is used for limiting the rotation of the first mounting plate 210 relative to the cabinet body 100.

Specifically, as shown in fig. 3, the first mounting plate 210 is disposed between the cabinet door 300 and the back plate 400, and one end of the first mounting plate 210 is hinged to an inner wall of a side plate of the cabinet body 100 through a hinge; the locking member 220 can be configured as a locking pin or a locking bolt, the locking member 220 is preferably disposed on a side of the first mounting plate 210 close to the cabinet door 300, and when the locking member 220 locks the first mounting plate 210 relative to the cabinet body 100, a plane of the first mounting plate 210 is parallel to a plane of the cabinet door 300.

Further, the locking member 220 includes a plug body 221 and a moving plug 222 engaged with the plug body 221; the plug body 221 is mounted on the first mounting plate 210, and one end of the moving plug 222 protruding out of the plug body 221 can protrude into the fixing groove.

Specifically, as shown in fig. 4, the latch body 221 is fixed on one side of the first mounting plate 210 close to the cabinet door 300 by screws or welding, the fixing groove is a groove on the cabinet body, the specific position of the groove is set according to requirements, and an operator manually dials the moving bolt 222, so that one end of the moving bolt 222, which extends out of the latch body 221, extends into the fixing groove to limit the first mounting plate 210 from rotating relative to the cabinet body 100; when the first mounting plate 210 is locked, the plane of the first mounting plate 210 is parallel to the plane of the backplate 400.

As an alternative embodiment of this embodiment, the moving bolt 222 is configured to be manually pressed, and when the moving bolt 222 is pressed for the first time, one end of the moving bolt 222 protrudes out of the plug body 221, and when the moving bolt 222 is pressed again, one end of the moving bolt 222 protruding out of the plug body 221 is retracted into the plug body 221.

As an optional implementation manner of this embodiment, a fixing block 120 is disposed on the cabinet body 100, a fixing groove is disposed on the fixing block 120, the fixing block 120 may be a metal block, the fixing block 120 is welded on the cabinet body 100, and the fixing groove may be a groove or a through hole on the fixing block 120.

In addition, the locking piece 220 can be set up to a plurality of, and a plurality of locking pieces 220 are all installed on one side that first mounting panel 210 is close to cabinet door 300, and a plurality of locking pieces 220 are more firm to the locking effect of first mounting panel 210.

The low-voltage switchgear that this embodiment provided, one end through first mounting panel 210 is articulated with cabinet body 100, and can restrict first mounting panel 210 through locking piece 220 and rotate for cabinet body 100, is convenient for adjust the size of second installation space, and is convenient for fix first mounting panel 210's normality position.

On the basis of the above embodiments, further, the low voltage switch cabinet provided by the present embodiment further includes a metering assembly 500, and the metering assembly 500 is mounted on the first mounting plate 210.

Specifically, the metering assembly 500 includes various types of electric energy meters and metering control devices, and the metering assembly 500 is mounted on a side of the first mounting plate 210 adjacent to the cabinet door 300.

Further, a first mounting hole 211 is formed on the first mounting plate 210, and a first connecting member is engaged with the first mounting hole 211 to fix the metering assembly 500 on the first mounting plate 210.

Specifically, the first connecting member is configured as a connecting bolt or an expansion screw, preferably, the first connecting member is configured as a connecting bolt, the connecting bolt sequentially passes through the mounting hole and the first mounting hole 211 on the metering assembly 500 and is fixed on the first mounting plate 210 through a nut, and the first mounting hole 211 may be configured as a circular, a diamond or other polygonal structure.

Further, the first mounting holes 211 are provided in a plurality, and the plurality of first mounting holes 211 are all arranged in a cross shape.

Specifically, the plurality of first mounting holes 211 are uniformly arranged on the first mounting plate 210, the plurality of first mounting holes 211 are formed through a mechanical stamping process, and the metering assembly 500 can be fixed on the first mounting plate 210 through the first mounting holes 211 at different positions, so that the mounting position of the metering assembly 500 can be adjusted; set up first mounting hole 211 as the cross, compare with ordinary round hole, the area of cross trompil is bigger, does benefit to in the heat that measurement subassembly 500 produced scatters and disappears the space that first mounting plate 210 and backplate 400 enclose through first mounting plate 210, then the vent or the forced draft equipment on the accessible backplate 400 discharge.

Further, an insulation wire slot 600 is further arranged on the first mounting plate 210, and a connecting wire passes through the insulation wire slot 600 and is connected with the metering assembly 500.

Specifically, the insulation wire slot 600 is made of a flexible insulation material, such as an insulation rubber, and a connection wire connected with a user or an electric device passes through the insulation wire slot 600 to be connected with the metering assembly 500; insulating wire casing 600 on the one hand keeps apart connecting wire and other components and parts insulation, and on the other hand has satisfied the different routes route of walking of connecting wire for the interior clean and tidy orderly of pencil of switch cabinet.

Further, the second connector is fitted into the first mounting hole 211 to fix the insulation line slot 600 to the first mounting plate 210.

Specifically, the first connecting member is configured as a fastening screw, and the fastening screw penetrates through the side wall of the insulating trunking 600 to be in threaded fit with the first mounting hole 211. As an optional embodiment of this embodiment, the first connecting member is provided as an insulation band, the insulation band bypasses the insulation line slot 600 and both ends of the insulation band pass through the two first mounting holes 211, respectively, to bind the insulation line slot 600 to the first mounting plate 210.

Further, a second mounting plate 700 is disposed in the first mounting space 110; the second mounting plate 700 is connected to the cabinet body 100, and a second mounting hole for mounting the main circuit breaker is formed in the second mounting plate 700.

Specifically, the second mounting plate 700 is horizontally arranged, the second mounting plate 700 is welded or fixed on the cabinet body 100 through bolts, the second mounting holes are through holes formed in the second mounting plate 700, and the fastening bolts sequentially penetrate through the mounting holes and the second mounting holes in the main circuit breaker and are fixed on the second mounting plate 700 through nuts. The main circuit breaker is provided with a copper wire row mounting position on one side close to the backboard 400, and the mounting opening 410 on the backboard 400 is over against the mounting position.

In the low-voltage switch cabinet provided by this embodiment, the first connecting member is matched with the first mounting hole 211, and the number of the first mounting holes 211 is plural, so that the metering assembly 500 is conveniently fixed on the first mounting plate 210, and the mounting position of the metering assembly 500 on the first mounting plate 210 is conveniently adjusted; through setting up insulating wire casing 600, made things convenient for walking of connecting wire, and improved the insulating protective capacities between connecting wire and other components and parts.

On the basis of the above embodiments, further, the box-type substation provided by this embodiment includes a low-voltage switch cabinet.

Specifically, the low-voltage switch cabinet is placed in one of the compartments in the box body of the box-type substation, a partition plate is arranged between the transformer compartment and the low-voltage switch cabinet compartment, and at one position, an operator in the transformer compartment holds the copper wire row to sequentially penetrate through an opening in the partition plate and a mounting hole 410 in a back plate 400, so that the copper wire row is conveyed to a mounting position on a main circuit breaker; compare with traditional copper row mounting means, only need an operating personnel's arm to pass the opening on the baffle, opening on the baffle can be opened littleer, has improved box-type substation's protection level.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.