CN110854718A

CN110854718A - Power distribution cabinet

Info

Publication number: CN110854718A
Application number: CN201911208783.1A
Authority: CN
Inventors: 任永岐
Original assignee: Xi'an Qunli Automatic Control Equipment Co Ltd
Current assignee: Xi'an Qunli Automatic Control Equipment Co Ltd
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-02-28

Abstract

The invention relates to a power distribution cabinet, which relates to the technical field of electrical cabinets and comprises a cabinet body, a cabinet door arranged on one side of the cabinet body and an isolation layer arranged on the outer side of the cabinet body, wherein a closed isolation chamber is formed between the cabinet body and the isolation layer, a cold water pipe is arranged in the isolation chamber, a cold water machine communicated with the cold water pipe is arranged outside the cabinet body, a heat dissipation opening is formed between the cabinet body and the isolation layer in a penetrating manner, and a separation baffle plate used for closing the isolation layer is arranged between the cabinet body and the heat dissipation opening on the isolation layer. The invention has the effect of improving the heat dissipation performance of the power distribution cabinet.

Description

Power distribution cabinet

Technical Field

The invention relates to the technical field of electrical cabinets, in particular to a power distribution cabinet.

Background

The power distribution cabinet is the final-stage equipment of a power distribution system, is a general name of a motor control center, can distribute electric energy of a certain circuit of the upper-stage power distribution equipment to nearby loads, is internally provided with various types of electrical components, and distributes the circuit under the synergistic action of the electrical components.

Chinese patent No. CN 204464811U discloses a power distribution cabinet, which comprises a cabinet body, wherein the cabinet body comprises a cabinet door, side walls, a ventilation top cover and a bottom plate, the cabinet body is made of stainless steel plates, and a dust cover is further arranged above the ventilation top cover; the side of the dust cover is provided with heat dissipation holes, and the cavity part of the dust cover is communicated with the ventilation holes in the ventilation top cover. The heat dissipation holes are arranged to dissipate heat in the cabinet body, and meanwhile, the dust cover can reduce dust outside the cabinet body from entering the cabinet body.

The above prior art solutions have the following drawbacks: above-mentioned switch board dispels the heat through the louvre, and under the higher circumstances of ambient temperature, above-mentioned radiating mode leads to its radiating effect relatively poor.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a power distribution cabinet which has the effect of improving the heat dissipation performance of the power distribution cabinet.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a power distribution cabinet, includes the cabinet body, locates the cabinet door of cabinet body one side, still including locating the isolation layer of the external side of cabinet, the cabinet body with form confined isolation cavity between the isolation layer, it is equipped with the cold water pipe in the isolation cavity, the cabinet be equipped with outward with the cold water machine of cold water pipe intercommunication, the cabinet body with run through between the isolation layer and seted up the thermovent, be equipped with between the thermovent on the cabinet body and the isolation layer and be used for with isolation layer confined separates the baffle.

By adopting the technical scheme, under normal conditions, the temperature in the cabinet body is radiated through the radiating port; when the outside temperature is higher, the cold water machine provides cold water in to the cold water pipe, cold water from the cold water intraductal through-time alright cool down the isolation cavity, just can reduce the internal heat of cabinet after the isolation cavity cooling to alright improve the radiating effect of switch board.

The present invention in a preferred example may be further configured to: the heat radiator comprises a heat radiator, and is characterized in that a first sealing plate capable of sliding to the position of the heat radiator along one side of the heat radiator is arranged on the outer wall of the isolation layer, a first driving assembly used for pushing the first sealing plate to move is arranged on the outer wall of the isolation layer, and the heat radiator can be sealed when the first sealing plate moves to the position of the heat radiator.

Through adopting above-mentioned technical scheme, when going back south, the external air humidity of cabinet is very big, it is internal if external air gets into the cabinet from the thermovent, then moisture in the air can be attached to on the internal electrical components of cabinet, when the last adnexed water smoke of electrical components is too much, can seriously influence electrical components's normal use, the condition that probably can cause the short circuit even, consequently when going back south, the motion of first closing plate of drive assembly drive is to thermovent department and is sealed the thermovent, thereby seal the thermovent and provide cold water cooling to the internal chamber of cabinet with cold water machine to the cold water pipe after sealing the thermovent. Through setting up first closing plate sealed with the thermovent to with cold water machine synergism, can improve the security performance of switch board, also can carry out effectual cooling to the switch board.

The present invention in a preferred example may be further configured to: the first driving assembly comprises a screw rod, a lead screw nut and a first motor, wherein the axis of the screw rod is parallel to the movement direction of the first sealing plate and is rotationally connected to the outer wall of the isolation layer, the lead screw nut is in threaded connection with the screw rod, the first motor is used for driving the screw rod to rotate, and the lead screw nut is fixedly connected with the first sealing plate.

Through adopting above-mentioned technical scheme, when first drive assembly drove first closing plate motion, drive the screw rod rotation promptly for first motor, drive lead screw nut and relative rotation with it when the screw rod rotates, lead screw nut along the relative pivoted while alright drive first closing plate towards thermovent one side motion of screw rod. The driving mode has simple structure and lower manufacturing cost.

The present invention in a preferred example may be further configured to: the isolation layer outer wall runs through and is seted up a plurality of with keep apart the ventilation hole of cavity intercommunication, the isolation layer outer wall one-to-one is equipped with can by ventilation hole one side slide to the second closing plate of ventilation hole department, the isolation layer outer wall is equipped with and is used for promoting the second drive assembly of second closing plate motion, the second closing plate move to can with when ventilation hole department the ventilation hole seals.

By adopting the technical scheme, when the cabinet body is cooled by using the water cooler, the second driving assembly drives the second sealing plate to move to the ventilation hole to seal the ventilation hole, so that external air can be prevented from entering the isolation chamber, and the cooling effect of the cold water pipe on the cabinet body can be improved; the ambient temperature is lower, when need not to use the cold water machine to cool off, and the second driving piece drives the second closing plate and moves to ventilation hole one side, opens the ventilation hole to cabinet side wall alright directly carry out heat exchange with the ambient air, can improve the heat dispersion of the cabinet body.

The present invention in a preferred example may be further configured to: the second driving assembly comprises a rack which is connected to the outer wall of the isolation layer in a sliding mode along the movement direction parallel to the second sealing plate, a gear which is meshed with the rack and is connected to the outer wall of the isolation layer in a rotating mode, and a second motor which is used for driving the gear to rotate, and the second sealing plates are fixedly connected with the rack.

By adopting the technical scheme, when the second driving piece drives the second sealing plate to move, the gear is driven to rotate by the second motor, the gear drives the rack meshed with the gear to slide when rotating, and the plurality of second sealing plates can be driven to synchronously move in the sliding process of the rack. The driving mode can drive the second sealing plates to move synchronously by one power source, and has simple structure and low cost.

The present invention in a preferred example may be further configured to: still include with the control assembly of first motor and second motor intercommunication, control assembly is including locating the temperature sensor and the humidity transducer of isolation layer outer wall, respectively with the controller of temperature sensor, humidity transducer, first motor and second motor electric property intercommunication.

By adopting the technical scheme, when the humidity sensor senses that the humidity of the outside air is higher than a set value, the controller controls the first motor to rotate so as to seal the heat dissipation opening, meanwhile, the controller controls the second motor to rotate so as to seal the ventilation hole, and then the cold water machine conveys cold water into the cold water pipe so as to cool the cold water pipe; when the temperature sensor senses that the outside air temperature is lower than the set value, the controller controls the second motor and the first motor to rotate, the second motor drives the second sealing plate to move to one side of the ventilation hole, the ventilation hole is opened, the first motor drives the first sealing plate to move to one side of the heat dissipation opening, and the heat dissipation opening is opened, so that the cabinet body can be cooled. Can realize the radiating automatically regulated of the cabinet body through setting up control assembly, its degree of automation is higher, need not staff real time monitoring, can effectively practice thrift manpower resources.

The present invention in a preferred example may be further configured to: the inner wall of the cabinet body is provided with a smoke sensor which is electrically communicated with the controller.

Through adopting above-mentioned technical scheme, when the internal electrical components of cabinet catches fire, smoke transducer senses behind the smog and gives the controller with signal transmission, and the first motor of controller control rotates, drives first closing plate when first motor rotates and moves to heat-sink department and seal the heat-sink to alright isolated external oxygen gets into the cabinet internally, thereby can make the internal intensity of a fire of cabinet reduce fast or extinguish, can effectively improve the security performance of switch board.

The present invention in a preferred example may be further configured to: and a plurality of radiating fins are fixedly connected to the periphery of the cold water pipe.

Through adopting above-mentioned technical scheme, can improve the refrigeration effect of cold water pipe through setting up radiating fin, can improve the cooling effect to the cabinet body.

The present invention in a preferred example may be further configured to: and a ventilation fan is arranged at the heat radiating opening.

By adopting the technical scheme, when the heat dissipation port is opened, the ventilation fan operates, the exchange rate of air in the cabinet body and outside air can be improved by arranging the ventilation fan, and the electric appliance elements in the cabinet body can be rapidly cooled.

The present invention in a preferred example may be further configured to: and a dustproof net is arranged in the heat dissipation port.

Through adopting above-mentioned technical scheme, it is internal that the dust in the reducible outside air of through setting up the dust screen gets into the cabinet, and reducible dust adheres to electrical components on, can improve electrical components's life to a certain extent.

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

1. the heat dissipation performance of the power distribution cabinet can be improved by arranging the heat dissipation port, the cold water pipe and the isolation chamber;

2. the first sealing plate is arranged to seal the heat dissipation opening, so that external water mist can be prevented from entering the cabinet body when the cabinet returns to south, external oxygen can be prevented from entering the cabinet body when components in the cabinet body catch fire, and the safety performance of the cabinet body can be effectively improved;

3. improve the heat dispersion of switch board under the lower condition of ambient temperature through setting up ventilation hole and second closing plate.

Drawings

FIG. 1 is a schematic overall structure of a first perspective of the present invention;

FIG. 2 is a partial schematic view of the plane A-A of FIG. 1;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 1;

fig. 4 is a partial structural schematic diagram of a second viewing angle of the present invention.

In the figure, 1, a cabinet body; 11. a cabinet door; 2. an isolation layer; 21. an isolation chamber; 22. a first sealing plate; 23. a vent hole; 24. a second sealing plate; 3. a heat dissipation port; 31. a baffle plate; 32. a ventilator; 33. a dust screen; 4. a first guide assembly; 41. a first guide rail; 42. a first guide block; 43. a first transfer block; 5. a first drive assembly; 51. a screw; 52. a lead screw nut; 53. a first motor; 54. a second transfer block; 55. a rotating seat; 6. a second drive assembly; 61. a rack; 62. a gear; 63. a second motor; 64. a third transfer block; 65. a mounting seat; 7. a second guide assembly; 71. a second guide rail; 72. a second guide block; 8. a control component; 81. a temperature sensor; 82. a humidity sensor; 83. a controller; 84. a smoke sensor; 9. a cold water pipe; 91. a water chiller; 92. and (4) radiating fins.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the power distribution cabinet disclosed by the invention comprises a cabinet body 1, a cabinet door 11 hinged to one side of the cabinet body 1, and an isolation layer 2 welded to the outer side of the cabinet body 1, wherein a closed isolation chamber 21 is formed between the cabinet body 1 and the isolation layer 2; the heat dissipation port 3 has been seted up to running through between the cabinet body 1 and the isolation layer 2, be equipped with between the heat dissipation port 3 on the cabinet body 1 and the isolation layer 2 and be used for separating the baffle 31 with isolation layer 2 confined, it welds the 3 inner walls of heat dissipation port on the cabinet body 1 and isolation layer 2 respectively to separate baffle 31 both ends, 3 departments of heat dissipation port are equipped with scavenger fan 32 and dust screen 33, the dust screen 33 perisporium with separate baffle 31 welding, scavenger fan 32 passes through the screw and separates baffle 31 rigid coupling, scavenger fan 32 locates one side that dust screen 33 is close to the cabinet body 1 inner chamber.

Referring to fig. 2 and 3, a first sealing plate 22 capable of sliding to the heat dissipation port 3 along one side of the heat dissipation port 3 is disposed on any outer wall of the isolation layer 2, the heat dissipation port 3 can be sealed when the first sealing plate 22 moves to the heat dissipation port 3, a set of first guiding assemblies 4 is disposed on any side of the outer wall of the isolation layer 2 in the moving direction of the first sealing plate 22, an edge of each first guiding assembly 4 includes a first guide rail 41 parallel to the moving direction of the first sealing plate 22 and fixedly connected to the outer wall of the isolation layer 2 through a screw, a first guide block 42 slidably connected to the side wall of the first guide rail 41 along the moving direction parallel to the first sealing plate 22, and an L-shaped first adapter 43 having one end fixedly connected to the first guide block 42 through a screw and the other end welded to the sealing plate, in this embodiment, the first guide rail 41 is a linear slide rail, and the.

Referring to fig. 2 and 3, a first driving assembly 5 for pushing the first sealing plate 22 to move is disposed on an outer wall of the isolation layer 2, the first driving assembly 5 includes a screw 51 whose axis is parallel to a moving direction of the first sealing plate 22 and is rotatably connected to the outer wall of the isolation layer 2, a screw nut 52 in threaded connection with the screw 51, a first motor 53 for driving the screw 51 to rotate, a second transfer block 54 whose one end is welded to the screw nut 52 and whose other end is welded to the first sealing plate 22, rotating seats 55 are welded to the outer wall of the isolation layer 2 at two ends of the screw 51, two ends of the screw 51 are rotatably connected to side walls of the two rotating seats 55, the first motor 53 is a servo motor, the first motor 53 is fixedly connected to any one of the rotating seats 55 through a screw, and an output shaft of the motor is coaxially and fixedly connected to.

Referring to fig. 4, the outer wall of isolation layer 2 runs through and sets up a plurality of ventilation holes 23 that communicate with isolation cavity 21, ventilation hole 23 is equipped with 3 in this embodiment, and each ventilation hole 23 is the strip, 3 ventilation holes 23 set up side by side in 2 lateral walls of isolation layer, 2 outer walls of isolation layer one-to-one is equipped with can slide to the second closing plate 24 in ventilation hole 23 department by ventilation hole 23 one side, 3 second closing plate 24 intervals set up, second closing plate 24 can seal ventilation hole 23 when moving to ventilation hole 23 department.

Referring to fig. 4, the outer wall of the isolation layer 2 is provided with a second driving assembly 6 for pushing the 3 second sealing plates 24 to move synchronously, and the second driving assembly 6 comprises a rack 61 connected to the outer wall of the isolation layer 2 in a sliding manner along a direction parallel to the moving direction of the second sealing plates 24, a gear 62 engaged with the rack 61 and rotationally connected to the outer wall of the isolation layer 2, and a second motor 63 for driving the gear 62 to rotate; each second sealing plate 24 side wall is provided with a third transfer block 64 with one end welded with the second sealing plate 24 and the other end welded with the rack 61, the outer wall of the isolation layer 2 is provided with a second guiding component 7, the second guiding component 7 comprises a second guide rail 71 fixedly connected with the isolation layer 2 through screws along the moving direction parallel to the second sealing plate 24, and a second guiding block 72 slidably connected with the second guide rail 71 along the moving direction parallel to the second sealing plate 24, the second guide rail 71 is fixedly connected with the second guiding block 72 through screws, in this embodiment, the second guide rail 71 is a linear slide rail, and the second guiding block 72 is a linear slide block; the outer wall of the isolation layer 2 is welded with an L-shaped mounting seat 65, the motor is fixedly connected with the side wall of the mounting seat 65 through a screw, the second motor 63 is a servo motor, and an output shaft of the second motor 63 penetrates through the mounting seat 65 and then is coaxially and fixedly connected with the gear 62.

Referring to fig. 3 and 4, the power distribution cabinet further includes a control assembly 8 communicated with the first motor 53 and the second motor 63, the control assembly 8 includes a temperature sensor 81 and a humidity sensor 82 which are arranged on the outer wall of the isolation layer 2, and a controller 83 respectively electrically communicated with the temperature sensor 81, the humidity sensor 82, the first motor 53 and the second motor 63, the controller 83, the temperature sensor 81 and the humidity sensor 82 are all fixedly connected to the outer wall of the isolation layer 2 through screws, and a smoke sensor 84 (refer to fig. 2) electrically communicated with the controller 83 is fixedly connected to the inner wall of the cabinet body 1 through screws.

Referring to fig. 2 and 4, a cold water pipe 9 is arranged in the isolation chamber 21, the cold water pipe 9 is fixedly connected with the outer wall of the cabinet body 1 through screws, a cold water machine 91 communicated with the cold water pipe 9 is arranged outside the cabinet body 1, the cold water machine 91 is electrically communicated with the controller 83, a plurality of radiating fins 92 are welded on the periphery of the cold water pipe 9, and two ends of the cold water pipe 9 are respectively communicated with a water inlet and a water outlet of the cold water machine 91 through drain pipes.

The implementation principle of the embodiment is as follows: when temperature sensor 81 senses that the outside air temperature is lower than the set value, give controller 83 with the signal transmission, controller 83 receives the operation of first motor 53 of control and second motor 63 behind the signal to open thermovent 3 and ventilation hole 23, make the inside and outside air exchange of the cabinet body 1, thereby reach the cooling effect to the cabinet body 1.

When the humidity sensor 82 senses that the external air humidity is higher than a set value, a signal is transmitted to the controller 83, the controller 83 receives the signal and then controls the first motor 53 and the second motor 63 to operate, so that the heat dissipation port 3 and the ventilation hole 23 are closed, the ventilation hole 23 and the heat dissipation port 3 are closed, the controller 83 controls the water cooling machine 91 to start operation, cold water is provided for the cold water pipe 9, and therefore the cabinet body 1 can be cooled.

When smoke sensor 84 senses the smoke in cabinet 1, signal transmission is given to controller 83, and controller 83 controls first motor 53 to operate to seal heat dissipation opening 3, alright isolated oxygen gets into cabinet 1 in, thereby makes the intensity of a fire in cabinet 1 can reduce fast or extinguish.

When the heat dissipation port 3 is closed, that is, the first motor 53 drives the screw rod 51 to rotate, the screw rod 51 drives the screw nut 52 to rotate relative to the screw rod 51, and the screw nut 52 drives the first sealing plate 22 to move by driving the transfer block in the rotating process, so that the heat dissipation port 3 can be closed; when the heat dissipation opening 3 is opened, the first motor 53 drives the screw rod 51 to rotate in the reverse direction, so as to drive the first sealing plate 22 to slide in the reverse direction, and thus the heat dissipation opening 3 can be opened.

When the vent hole 23 is closed, namely the second motor 63 drives the gear 62 to rotate, the gear 62 drives the rack 61 engaged with the gear to slide towards one side of the vent hole 23 when rotating, and the rack 61 can drive 3 second sealing plates 24 to synchronously move when moving, so that the vent hole 23 can be closed; when the vent 23 is opened, that is, the second motor 63 drives the gear 62 to rotate in the reverse direction, so that the rack 61 can be driven to slide toward the side away from the vent 23, and the vent 23 can be opened.

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

Claims

1. The utility model provides a power distribution cabinet, includes the cabinet body (1), locates cabinet door (11) of cabinet body (1) one side, its characterized in that: still including locating isolation layer (2) in the cabinet body (1) outside, the cabinet body (1) with form confined isolation cavity (21) between isolation layer (2), be equipped with cold water pipe (9) in isolating cavity (21), the cabinet body (1) be equipped with outward with cold water machine (91) of cold water pipe (9) intercommunication, the cabinet body (1) with run through between isolation layer (2) and seted up thermovent (3), be equipped with between thermovent (3) on the cabinet body (1) and isolation layer (2) be used for with isolation layer (2) confined separate baffle (31).

2. A switch board according to claim 1, characterized in that: the outer wall of the isolation layer (2) is provided with a first sealing plate (22) which can slide to the position of the heat dissipation opening (3) along one side of the heat dissipation opening (3), the outer wall of the isolation layer (2) is provided with a first driving assembly (5) used for pushing the first sealing plate (22) to move, and the heat dissipation opening (3) can be sealed when the first sealing plate (22) moves to the position of the heat dissipation opening (3).

3. A switch board according to claim 2, characterized in that: the first driving assembly (5) comprises a screw rod (51) with an axis parallel to the movement direction of the first sealing plate (22) and connected to the outer wall of the isolation layer (2) in a rotating mode, a screw nut (52) in threaded connection with the screw rod (51), and a first motor (53) used for driving the screw rod (51) to rotate, wherein the screw nut (52) is fixedly connected with the first sealing plate (22).

4. A switch board according to claim 1, characterized in that: isolation layer (2) outer wall run through seted up a plurality ofly with ventilation hole (23) of isolation cavity (21) intercommunication, isolation layer (2) outer wall one-to-one be equipped with can by ventilation hole (23) one side slides extremely second closing plate (24) of ventilation hole (23) department, isolation layer (2) outer wall is equipped with and is used for promoting second closing plate (24) second drive assembly (6) of motion, second closing plate (24) move extremely can with during ventilation hole (23) department ventilation hole (23) seal.

5. A switch board of claim 4, characterized in that: the second driving assembly (6) comprises a rack (61) which is connected to the outer wall of the isolation layer (2) in a sliding mode along the direction parallel to the moving direction of the second sealing plate (24), a gear (62) which is meshed with the rack (61) and is connected to the outer wall of the isolation layer (2) in a rotating mode, and a second motor (63) which is used for driving the gear (62) to rotate, wherein the second sealing plate (24) is fixedly connected with the rack (61).

6. A switch board according to claim 3, characterized in that: still include with control assembly (8) of first motor (53) and second motor (63) intercommunication, control assembly (8) including locate temperature sensor (81) and humidity transducer (82) of isolation layer (2) outer wall, respectively with temperature sensor (81), humidity transducer (82), first motor (53) and second motor (63) electric communication's controller (83).

7. A switch board of claim 6, characterized in that: the inner wall of the cabinet body (1) is provided with a smoke sensor (84) which is electrically communicated with the controller (83).

8. A switch board according to claim 1, characterized in that: the periphery of the cold water pipe (9) is fixedly connected with a plurality of radiating fins (92).

9. A switch board according to claim 1, characterized in that: and a ventilation fan (32) is arranged at the heat dissipation port (3).

10. A switch board according to claim 1, characterized in that: and a dustproof net (33) is arranged in the heat dissipation opening (3).