CN213278896U

CN213278896U - Low-voltage power distribution cabinet

Info

Publication number: CN213278896U
Application number: CN202022110184.0U
Authority: CN
Inventors: 朱飞飞; 郑惟仁
Original assignee: Xi'an Zhongji High And Low Voltage Electrical Equipment Co ltd
Current assignee: Xi'an Zhongji High And Low Voltage Electrical Equipment Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-05-25
Anticipated expiration: 2030-09-23

Abstract

The application relates to a low-voltage power distribution cabinet, relates to the field of power equipment, and aims to solve the problem of poor heat dissipation of the conventional power distribution cabinet; a base is fixedly connected to the lower side of the cabinet body and communicated with the interior of the cabinet body; the base is internally provided with an installation frame, one side of the base, which corresponds to the cabinet door, is provided with an opening, the installation frame is inserted in the base, and one side of the installation frame, which is positioned at the opening of the base, is fixedly connected with a cover plate; the side wall of the base is provided with an air vent, the mounting frame is provided with a fan, and the air outlet direction of the fan faces the upper side of the cabinet body; the rigid coupling has the ventilation shell on the side on the cabinet body, and the ventilation shell is a hollow structure, and ventilation shell and the internal portion intercommunication of cabinet, the side in the outside of ventilation shell are located the outside of cabinet side wall, and a plurality of vents have been seted up on the downside of the part that the ventilation shell is located the external side of cabinet. This application has the effect that promotes the heat dispersion of switch board.

Description

Low-voltage power distribution cabinet

Technical Field

The application relates to the field of power equipment, in particular to a low-voltage power distribution cabinet.

Background

The low-voltage power distribution cabinet is a basic device in a power system, plays roles in electric energy conversion and control of illumination and power distribution, and has the characteristics of strong breaking capacity, convenience in combination and the like.

In the course of the work, electrical components in the switch board can produce certain heat, and more electrical components arrange in comparatively intensive space, can make the temperature rise in the switch board, produce the influence to electrical components's normal work, consequently generally seted up the louvre on the switch board, the louvre sets up the upper and lower both sides at the lateral wall of switch board for gas in the switch board, the appearance becomes a circulation, the effect of cooling together.

With respect to the related art in the above, the inventors consider that: the low-voltage power distribution cabinet is generally used in an indoor environment, the circulation of indoor air is poor, the power distribution cabinet dissipates heat by relying on the circulation of air, and the heat dissipation efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to promote the radiating efficiency of switch board, this application provides a low-voltage distribution cabinet.

The application provides a low-voltage distribution cabinet adopts following technical scheme:

a low-voltage power distribution cabinet comprises a cabinet body, wherein a cabinet door is arranged on one side of the cabinet body; a base is fixedly connected to the lower side of the cabinet body and communicated with the interior of the cabinet body; the base is internally provided with an installation frame, one side of the base, which corresponds to the cabinet door, is provided with an opening, the installation frame is inserted in the base, and one side of the installation frame, which is positioned at the opening of the base, is fixedly connected with a cover plate; the side wall of the base is provided with an air vent, the mounting frame is provided with a fan, and the air outlet direction of the fan faces the upper side of the cabinet body; the rigid coupling has the ventilation shell on the side on the cabinet body, and the ventilation shell is a hollow structure, and ventilation shell and the internal portion intercommunication of cabinet, the side in the outside of ventilation shell are located the outside of cabinet side wall, and a plurality of vents have been seted up on the downside of the part that the ventilation shell is located the external side of cabinet.

Through adopting above-mentioned technical scheme, in the course of the work, drive gaseous flow through the fan, gaseous from the air vent gets into the base in, drive gaseous top to the cabinet body through the fan and flow, gaseous discharge in the vent of ventilation shell can play the effect that promotes the cooling efficiency of switch board, through the ventilation shell that sets up, set up the vent at the downside of ventilation shell, reduce to go out to have the dust and get into the internal phenomenon of cabinet from the vent.

Preferably, the positions corresponding to the vent holes on the mounting frame are respectively provided with a filter screen.

Through adopting above-mentioned technical scheme, gaseous in-process that gets into base and the cabinet body reduces to appear the phenomenon that has the dust entering, guarantees the cleanness of base and the internal of cabinet, reduces the phenomenon that the normal work of electrical components produces the influence in the switch board.

Preferably, a drying box is installed on the installation frame, the drying box is located on one side, facing the cabinet body, of the filter screen, and a drying agent is filled in the drying box.

Through adopting above-mentioned technical scheme, when gaseous entering base and the cabinet are internal, carry out the drying to gaseous through dry box, can guarantee the aridity of the internal environment of cabinet, reduce the internal moist phenomenon that appears of cabinet, reduce the normal work production influence to inside electrical components.

Preferably, a temperature sensor and a control element are installed in the cabinet body, the temperature sensor is electrically connected with the control element, and the fan is electrically connected with the control element.

Through adopting above-mentioned technical scheme, temperature sensor detects the internal temperature of cabinet, and in data transmission to the control element that will detect, control the fan through control element, when the internal temperature of cabinet is in the interval of difference, control the power of fan, under the circumstances that the assurance has better cooling efficiency to the internal of cabinet, reduce extravagant phenomenon.

Preferably, a plurality of mounting assemblies are arranged in the cabinet body, each mounting assembly comprises a mounting block fixed on two opposite side walls in the cabinet body and a mounting plate connected between two corresponding mounting blocks, and two ends of each mounting plate are slidably connected to the mounting blocks on two sides; the mounting blocks are respectively provided with a positioning component for fixing the position of the mounting plate.

Through adopting above-mentioned technical scheme, fix electrical components on the mounting panel, when installing, slide the mounting panel along the length direction of installation piece, slide the mounting panel to the external side of cabinet, it is comparatively convenient to carry out the operation of fixing to electrical components.

Preferably, the mounting block is fixedly connected with a fixed connecting block, the fixed connecting block is fixed on the side wall of the cabinet body, and the size of the section of the fixed connecting block is smaller than that of the section of the mounting block; connecting plates are estimated at two ends of the mounting plate respectively, the cross sections of the connecting plates are U-shaped, and the mounting blocks are embedded in U-shaped openings of the connecting plates; two of the opening positions of the connecting plate are fixedly connected with limiting edges respectively, and the limiting edges are attached to the side faces, facing the fixed connecting blocks, of the mounting blocks; the installation piece has the interval towards the one end of the external side of cabinet and cabinet body opening, and the interval is greater than the width of connecting plate.

Through adopting above-mentioned technical scheme, when installing the mounting panel on the installation piece, directly establish the connecting plate from the tip cover of installation piece to the installation piece on, it is comparatively convenient to the operation of its installation, simultaneously, guarantees that the mounting panel is along the gliding stability of installation piece.

Preferably, the positioning assembly comprises a positioning block which is connected to the mounting block in a sliding manner, the mounting block is provided with a sliding groove, and the positioning block is connected to the sliding groove in a sliding manner; a return spring is fixedly connected to the positioning block and is positioned on the side surface of the positioning block facing the inside of the sliding chute, and the other end of the return spring is connected to the bottom of the sliding chute; the part of the positioning block, which is positioned at the outer side of the sliding chute, faces the side surface of the opening of the cabinet body and is provided with an inclined surface.

Through adopting above-mentioned technical scheme, when installing the mounting panel, slide the mounting panel along the installation piece to cabinet body inboard, on the connecting plate butt joint area locating piece for in the locating piece slided into the spout, when the connecting plate slided to the locating piece towards the internal one side of cabinet, the locating piece popped out under reset spring's effect, fixes the connecting plate, and is comparatively convenient to the fixed of mounting panel.

Preferably, the lower side of the base is provided with a plurality of supporting columns, and the supporting columns are respectively positioned at corner positions on the lower side surface of the base; a plurality of hydraulic cylinders are fixedly connected to the lower side surface of the base, and telescopic ends of the hydraulic cylinders are vertically arranged downwards; the lower end of the hydraulic cylinder is provided with a roller.

Through adopting above-mentioned technical scheme, the during operation supports the switch board through the support column, under the condition that needs adjust the position of switch board, the control pneumatic cylinder extension for the gyro wheel butt is subaerial, and the support column leaves ground, can be comparatively convenient shift comparatively laborsaving the position to the switch board.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cooling efficiency of the power distribution cabinet is improved, and the temperature can be rapidly cooled under the condition that the temperature of an electrical element in the power distribution cabinet is increased;

2. through the arranged installation assembly, when the electrical element is installed, the installation plate is adjusted to the opening position of the cabinet body, so that the electrical element can be conveniently installed, the installation process is convenient, the sliding stability of the connecting plate along the installation block is ensured, and the position of the connecting plate is conveniently fixed;

3. through the support column and the gyro wheel that set up, the during operation supports the switch board through the support column, guarantees stability, when needing to remove the switch board, only supports the switch board with the gyro wheel, carries out the comparatively laborsaving convenience of operation that removes to the switch board.

Drawings

Fig. 1 is a schematic structural diagram of a power distribution cabinet;

FIG. 2 is a schematic view of the mechanism for showing the vent;

FIG. 3 is a schematic view for showing the base and the structure inside the base;

FIG. 4 is an enlarged schematic view of portion B of FIG. 3;

FIG. 5 is an enlarged schematic view of portion A of FIG. 1;

FIG. 6 is a cross-sectional view taken to show the structure of the positioning assembly;

fig. 7 is a sectional view for showing the structure of the roller.

Description of reference numerals: 1. a cabinet body; 11. a cabinet door; 12. a temperature sensor; 13. a control element; 2. mounting the component; 21. mounting blocks; 211. a chute; 212. a limiting groove; 22. a fixing plate; 23. a connecting plate; 231. a limiting edge; 24. a fixed block; 3. a ventilated casing; 31. a vent; 4. a base; 41. a vent hole; 42. protecting the edge; 43. a mounting frame; 44. a cover plate; 441. an ear plate; 442. fixing the bolt; 45. a fan; 46. filtering with a screen; 47. drying the box; 48. a refrigeration pipe; 481. an electromagnetic valve; 49 through-tube holes; 5. a positioning assembly; 51. positioning blocks; 511. a stopper; 52. a return spring; 6. a support pillar; 7. accommodating the block; 71. a hydraulic cylinder; 72. a roller; 73. and (6) accommodating the tank.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses low-voltage distribution cabinet. Referring to fig. 1 and 2, the power distribution cabinet comprises a cabinet body 1, wherein a cabinet door 11 is hinged to one side of the cabinet body 1; the cabinet body 1 is internally provided with an installation component 2 used for installing electrical elements; the upper side surface of the cabinet body 1 is fixedly connected with a ventilation shell 3, the ventilation shell 3 is of a hollow structure, and the side surface of the outer side of the ventilation shell 3 is positioned on the outer side of the side wall of the cabinet body 1; a plurality of ventilation openings 31 are formed on the lower side surface of the part of the ventilation shell 3 positioned outside the cabinet body 1; the ventilation shell 3 is communicated with the inside of the cabinet body 1.

Referring to fig. 1 and 3, a base 4 is fixedly connected to the lower side of the cabinet body 1, the base 4 is of a shell structure, an opening is formed in the upper side of the base 4, and an opening is also formed in the lower side of the cabinet body 1, so that the base 4 is communicated with the inside of the shell; vent holes 41 are formed in two opposite side walls of the base 4, protective edges 42 are fixedly connected to the outer sides of the vent holes 41 respectively, the upper side edges of the protective edges 42 are fixedly connected with the side walls of the cabinet body 1, and the lower side edges are provided with openings to form vent channels with downward openings; one side of the base 4, which is positioned in the same direction as the cabinet door 11, is provided with an opening.

Referring to fig. 3 and 4, a mounting frame 43 is cooperatively disposed in the base 4, the mounting frame 43 is inserted into the base 4 from an opening of the base 4, a cover plate 44 is fixedly connected to one side of the mounting frame 43 located at the opening of the base 4, and the opening of the base 4 is sealed by the cover plate 44; a plurality of ear plates 441 are fixed to the side surface of the cover plate 44, and fixing bolts 442 are disposed on the ear plates 441 for fixing the cover plate 44 and the base 4.

Referring to fig. 3, a fan 45 is fixed in the mounting bracket 43, and an air outlet end of the fan 45 faces upward.

In the use, fan 45 work for external gas enters into base 4 from air vent 41 in, and then flows to cabinet body 1 top, and final gas flows into to the shell of exhausting in, discharges from the blow vent of shell avris of exhausting, through the fan 45 who sets up, can promote the heat exchange efficiency of switch board.

Referring to fig. 3 and 4, a filter net 46 is fixed on the mounting frame 43 at a side opposite to the vent hole 41; the inner sides of the filter screens 46 on the mounting rack 43 are respectively fixedly connected with a drying box 47, and drying agents are filled in the drying boxes 47; when gas gets into in the base 4 from the cabinet body 1 and the base 4 is outer, pass through filter screen 46 and dry box 47 in proper order, get rid of the dust and the steam in the air, can reduce the phenomenon that has the dust to enter into the cabinet body 1 in, guarantee the clean shape of the internal portion of cabinet 1, reduce the normal work to the electrical components of inside and produce the influence, carry out the drying to letting in to the gas in the cabinet body 1 simultaneously, guarantee the drying in the space of the internal 1 of cabinet.

Referring to fig. 1, a temperature sensor 12 and a control element 13 are installed in a cabinet 1, the temperature sensor 12 is electrically connected with the control element 13, and a fan 45 is electrically connected with the control element 13; the temperature sensor 12 senses the temperature in the cabinet 1, transmits a signal to the control element 13, controls the power of the fan 45 through the control element 13, and adjusts the power of the fan 45 through the control element 13 when the temperature in the cabinet 1 is in different intervals, so that the waste is reduced while the good heat dissipation effect is ensured.

Referring to fig. 1 and 3, a refrigerating pipe 48 is installed on the upper side of the mounting frame 43, two ends of the refrigerating pipe 48 extend in a direction away from the cover plate 44, through-pipe holes 49 are formed in positions on the side wall of the base 4 corresponding to the two ends of the refrigerating pipe 48, when the mounting frame 43 is inserted into the base 4, the end of the refrigerating pipe 48 penetrates out of the through-pipe holes 49, the refrigerating pipe 48 is connected with refrigerating equipment, a solenoid valve 481 is installed on a portion, located outside the cabinet body 1, of the refrigerating pipe 48, and the solenoid valve 481 is electrically connected with a controller.

When cooling down to the cabinet body 1 is internal, temperature when the switch board in is higher, under the relatively poor condition of effect of cooling, through controller control refrigeration pipe 48 and refrigeration plant intercommunication, to letting in low temperature gas in the refrigeration pipe 48, fan 45 drives the air current and flows through refrigeration pipe 48 and lets in the cabinet body 1 in, to cooling down through the gas in the cabinet body 1, promote the cooling effect to the cabinet body 1 in.

Referring to fig. 1 and 5, the mounting assembly 2 includes two mounting blocks 21 fixed on two side walls of the cabinet body 1 adjacent to the cabinet door 11 and a fixing plate 22 connected to the two corresponding mounting blocks 21; the mounting block 21 is horizontally fixed on the inner wall of the cabinet body 1, one end of the mounting block 21 positioned in the cabinet body 1 is abutted against the side wall of the cabinet body 1 opposite to the cabinet door 11, and a gap is reserved between one end of the mounting block 21 facing the outer side of the cabinet body 1 and the cabinet door 11; a fixed block 24 is arranged between the mounting block 21 and the inner wall of the cabinet body 1, the fixed block 24 is fixed on the inner wall of the cabinet body 1, the mounting block 21 is fixed on the fixed block 24, and the size of the section of the fixed block 24 is smaller than that of the section of the mounting block 21; the two ends of the fixing plate 22 are respectively and fixedly connected with a connecting plate 23, the connecting plates 23 are connected to the corresponding mounting blocks 21, and the mounting blocks 21 are provided with positioning components 5 for fixing the connecting plates 23.

Referring to fig. 5, the connecting plate 23 is U-shaped, and the mounting block 21 is fitted in the U-shaped opening of the connecting plate 23; the two sides of the opening of the connecting plate 23 are respectively fixedly connected with a limiting edge 231, the limiting edges 231 are positioned on the inner side of the U-shaped opening of the connecting plate 23, and the limiting edges 231 are abutted against the side surfaces of the mounting blocks 21 facing the corresponding fixing blocks 24; the distance between the end of the mounting block 21 and the opening of the cabinet 1 is larger than the width of the connecting plate 23.

Referring to fig. 5 and 6, the positioning assembly 5 includes a positioning block 51 slidably connected to the mounting block 21 and a return spring 52 disposed on the positioning block 51; a sliding groove 211 is formed in the position, corresponding to the positioning block 51, of the mounting block 21, and the positioning block 51 is connected to the sliding groove 211 in a sliding mode; two side surfaces of two rows of the end part of the positioning block 51 positioned in the sliding groove 211 are fixedly connected with stoppers 511, the side wall of the sliding groove 211 is provided with limiting grooves 212 at positions corresponding to the stoppers 511, and the stoppers 511 are respectively embedded in the corresponding limiting grooves 212; the return spring 52 is positioned in the sliding groove 211, and two ends of the return spring 52 are respectively connected to the stop block 511 and the groove bottom of the sliding groove 211; the part of the positioning block 51 located outside the sliding groove 211 facing the outside of the cabinet 1 is provided with an inclined surface facing the obliquely upward direction of the cabinet door 11.

When electrical components are installed, the installation plate slides along the installation block 21 towards the cabinet door 11, the connecting plate 23 is taken down from the end of the installation block 21, the electrical components are fixed on the installation plate, then the connecting plate 23 is sleeved on the installation block 21 from the end of the installation block 21, the installation plate slides towards the inner side of the cabinet body 1, the connecting plate 23 is abutted to the inclined surface of the positioning block 51, the positioning block 51 is extruded into the sliding groove 211, the connecting plate 23 continues to slide along the installation block 21, when the connecting plate 23 slides to the side, far away from the cabinet door 11, of the positioning block 51 under the action of the reset spring 52, the positioning block 51 is matched with the inner side wall of the cabinet body 1 to clamp and fix the connecting plate 23, the operation of installing the electrical components is convenient, and the position of the installation plate can be conveniently fixed.

Referring to fig. 1 and 7, support columns 6 are fixedly connected to four corner positions on the lower side surface of the base 4, and the support columns 6 are integrally supported by a power distribution cabinet; the two sides of the base 4 are respectively fixedly connected with a containing block 7, and the containing block 7 is provided with a hydraulic cylinder 71 and a roller 72; accommodating grooves 73 are formed in two ends of the lower side surface of the accommodating block 7 respectively, a plurality of hydraulic rods are arranged, the hydraulic cylinders 71 are arranged in the accommodating grooves 73 respectively, the telescopic ends of the hydraulic rod pipes are downward vertically, the rollers 72 correspond to the hydraulic cylinders 71 one by one, and the rollers 72 are arranged at the lower ends of the hydraulic rods; the rigid coupling has bounding wall 8 on the downside of base 4, and bounding wall 8 has the polylith, and polylith bounding wall 8 encircles the outside border a week setting of base 4.

In the working process, support the switch board through support column 6, when needing to shift the switch board, control hydraulic cylinder 71 extension for gyro wheel 72 descends, and support column 6 leaves ground, wholly supports the switch board through gyro wheel 72, can be comparatively convenient shift the switch board.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a low-voltage distribution cabinet which characterized in that: comprises a cabinet body (1), wherein one side of the cabinet body (1) is provided with a cabinet door (11); a base (4) is fixedly connected to the lower side of the cabinet body (1), and the base (4) is communicated with the interior of the cabinet body (1); an installation frame (43) is arranged in the base (4), an opening is formed in one side, corresponding to the cabinet door (11), of the base (4), the installation frame (43) is inserted into the base (4), and a cover plate (44) is fixedly connected to one side, located at the opening, of the base (4), of the installation frame (43); the side wall of the base (4) is provided with an air vent (41), the mounting rack (43) is provided with a fan (45), and the air outlet direction of the fan (45) faces the upper side of the cabinet body (1); the ventilation device is characterized in that a ventilation shell (3) is fixedly connected to the upper side face of the cabinet body (1), the ventilation shell (3) is of a hollow structure, the ventilation shell (3) is communicated with the inside of the cabinet body (1), the side face of the outer side of the ventilation shell (3) is located on the outer side of the side wall of the cabinet body (1), and a plurality of ventilation openings (31) are formed in the lower side face of the part, located on the outer side of the cabinet body (1), of the ventilation shell (3).

2. A low-voltage distribution cabinet according to claim 1, characterized in that: and filter screens (46) are respectively arranged at positions corresponding to the ventilation holes on the mounting frame (43).

3. A low-voltage distribution cabinet according to claim 2, characterized in that: install drying box (47) on mounting bracket (43), drying box (47) are located filter screen (46) one side towards cabinet body (1) in, and drying box (47) intussuseption is filled with the drier.

4. A low-voltage distribution cabinet according to claim 1, characterized in that: the cabinet body (1) is internally provided with a temperature sensor (12) and a control element (13), the temperature sensor (12) is electrically connected with the control element (13), and the fan (45) is electrically connected with the control element (13).

5. A low-voltage distribution cabinet according to claim 1, characterized in that: a plurality of mounting assemblies (2) are arranged in the cabinet body (1), each mounting assembly (2) comprises a mounting block (21) fixed on two opposite side walls in the cabinet body (1) and a mounting plate connected between the two corresponding mounting blocks (21), and two ends of each mounting plate are slidably connected to the mounting blocks (21) on two sides; the mounting blocks (21) are respectively provided with a positioning component (5) for fixing the position of the mounting plate.

6. Low-voltage distribution cabinet according to claim 5, characterized in that: the mounting block (21) is fixedly connected with a fixed connecting block, the fixed connecting block is fixed on the side wall of the cabinet body (1), and the size of the section of the fixed connecting block is smaller than that of the section of the mounting block (21); connecting plates (23) are respectively estimated at two ends of the mounting plate, the cross sections of the connecting plates (23) are U-shaped, and the mounting blocks (21) are embedded in the U-shaped openings of the connecting plates (23); two of the opening positions of the connecting plate (23) are fixedly connected with a limiting edge (231) respectively, and the limiting edges (231) are attached to the side faces, facing the fixed connection blocks, of the mounting blocks (21); the mounting block (21) has a distance from the opening of the cabinet body (1) towards one end of the outer side of the cabinet body (1), and the distance is larger than the width of the connecting plate (23).

7. A low-voltage distribution cabinet according to claim 6, characterized in that: the positioning assembly (5) comprises a positioning block (51) which is connected to the mounting block (21) in a sliding mode, a sliding groove (211) is formed in the mounting block (21), and the positioning block (51) is connected to the sliding groove (211) in a sliding mode; a return spring (52) is fixedly connected to the positioning block (51) and is positioned on the side surface of the positioning block (51) facing the inside of the sliding groove (211), and the other end of the return spring (52) is connected to the bottom of the sliding groove (211); the side surface of the part of the positioning block (51) positioned at the outer side of the sliding chute (211) and facing the opening of the cabinet body (1) is provided with an inclined surface.

8. A low-voltage distribution cabinet according to claim 1, characterized in that: a plurality of supporting columns (6) are arranged on the lower side of the base (4), and the supporting columns (6) are respectively positioned at corner positions on the lower side of the base (4); a plurality of hydraulic cylinders (71) are fixedly connected to the lower side surface of the base (4), and the telescopic ends of the hydraulic cylinders (71) are vertically arranged downwards; the lower end of the hydraulic cylinder (71) is provided with a roller (72).