CN215645769U

CN215645769U - Low-voltage switch cabinet

Info

Publication number: CN215645769U
Application number: CN202122124159.2U
Authority: CN
Inventors: 祝延辉; 王坚
Original assignee: SHANGHAI ZHEZHONG ELECTRIC CO LTD
Current assignee: SHANGHAI ZHEZHONG ELECTRIC CO LTD
Priority date: 2021-09-04
Filing date: 2021-09-04
Publication date: 2022-01-25
Anticipated expiration: 2031-09-04

Abstract

The embodiment of the application relates to a low-voltage switch cabinet, including the plenum, establish the cabinet body on the plenum, the order is established on the cabinet body and with cabinet body sliding connection's a plurality of drawers, establish on the cabinet body and be located the outer wind channel of cabinet body, establish on the cabinet body and with the wind hole of wind channel intercommunication, establish the gas pocket on the bottom surface of drawer and establish the baffle in the plenum, every wind hole all is located the top of the drawer that matches, the baffle is divided into inlet channel and exhaust passage with the space in the plenum, wind channel and inlet channel intercommunication, the cabinet body communicates with exhaust passage. The low-voltage switch cabinet disclosed in the embodiment of the application can discharge heat generated by the electric elements in the operation process through an active heat dissipation mode.

Description

Low-voltage switch cabinet

Technical Field

The application relates to the technical field of electricity, especially, relate to a low-voltage switchgear.

Background

Low-voltage switchgear, especially drawer cabinet because inside space is narrow and small, at long-time operation in-process, can produce certain heat, if these heats can not in time distribute, can influence the life of normal operation even equipment.

Disclosure of Invention

The embodiment of the application provides a low-voltage switch cabinet, can be through the heat dissipation mode of active type with the heat that electrical element produced in the operation process discharge.

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

the embodiment of the application provides a low-voltage switchgear, includes:

an air chamber;

the cabinet body is arranged on the air chamber;

the drawers are sequentially arranged on the cabinet body and are in sliding connection with the cabinet body;

the air duct is arranged on the cabinet body and positioned outside the cabinet body;

the air holes are formed in the cabinet body and communicated with the air channel, and each air hole is located above the matched drawer;

the air hole is arranged on the bottom surface of the drawer; and

the partition board is arranged in the air chamber and divides the space in the air chamber into an air inlet channel and an air exhaust channel;

wherein, the wind channel is communicated with the air inlet channel, and the cabinet body is communicated with the exhaust channel.

In a possible implementation manner of the embodiment of the application, the air conditioner further comprises a filtering module arranged on the air duct, and the filtering module is detachably connected to the air duct.

In a possible implementation manner of the embodiment of the application, the filtering module includes a connecting pipe and a filter element arranged in the connecting pipe;

the both ends of connecting pipe can be dismantled and connect on the wind channel.

In one possible implementation of the embodiments of the present application, the flow area of the wind holes tends to increase in the flow direction of the gas.

In one possible implementation of the embodiments of the present application, the air holes are inclined toward the bottom surface of the mating drawer.

In a possible implementation manner of the embodiment of the application, the cabinet further comprises a temperature sensor, a wireless communication unit and a controller which are arranged in the cabinet body;

the temperature sensor is positioned at the communication part of the cabinet body and the exhaust channel;

the wireless communication unit and the controller are positioned outside the cabinet body;

the controller is used for communicating with the upper computer through the wireless communication unit according to the feedback of the temperature sensor.

In a possible implementation manner of the embodiment of the application, the system further comprises an alarm connected with the controller;

the alarm is arranged on the cabinet body and is positioned outside the cabinet body.

In one possible implementation of the embodiment of the present application, the alarm includes an audible alarm and/or an optical alarm.

Drawings

Fig. 1 is an internal structural schematic diagram of a low-voltage switch cabinet provided in an embodiment of the present application.

Fig. 2 is a schematic distribution diagram of air holes on a drawer according to an embodiment of the present disclosure.

Fig. 3 is a schematic view of the flow of air to the interior of the cabinet shown in fig. 1, with arrows indicating the direction of the air flow.

Fig. 4 is a schematic view of a gas flow direction in a centralized deployment according to an embodiment of the present application, and arrows in the diagram indicate the gas flow direction.

Fig. 5 is a schematic structural diagram of a filter module according to an embodiment of the present disclosure.

Fig. 6 is a schematic connection diagram of a temperature sensor, an alarm, a controller and a wireless communication unit according to an embodiment of the present application.

Fig. 7 is a block diagram schematically illustrating a structure of a controller according to an embodiment of the present disclosure.

Fig. 8 is a block diagram illustrating a structure of a wireless communication unit according to an embodiment of the present disclosure.

In the figure, 11, a cabinet body, 12, a drawer, 13, an air duct, 14, an air hole, 15, an air hole, 21, an air chamber, 22, a partition plate, 211, an air inlet channel, 212, an air outlet channel, 3, a filtering module, 41, a connecting pipe, 8, a filter element, 41, a temperature sensor, 8, a wireless communication unit, 43, an alarm, 6, a controller, 601, a CPU, 602, a RAM, 603, a ROM, 604, a system bus, 8, a wireless communication unit, 801, an antenna, 802, a radio frequency device, 803 and a baseband device.

Detailed Description

The technical solution of the present application will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, a low-voltage switch cabinet disclosed in an embodiment of the present application is a switch cabinet, which includes a cabinet body 11, a drawer 12, an air duct 13, an air chamber 21, a partition 22, and the like, wherein a plurality of drawers 12 are sequentially installed on the cabinet body 11 and are slidably connected to the cabinet body 11, during an actual use process, electrical components are installed in each drawer 12, when an inspection or an overhaul is required, the drawer 12 is pulled out from the cabinet body 11, and after the inspection or the overhaul is completed, the drawer 12 is pushed back into the cabinet body 11.

It will be appreciated that the space within the drawer 12 is relatively free-standing and the air flow within the space is substantially stagnant, which results in heat generated by the electrical components within the drawer 12 being difficult to remove.

The low-voltage switchgear that this application embodiment discloses is exactly through the heat dissipation's of initiative mode come the heat discharge that produces in the drawer 12, and specifically speaking, wind channel 13 sets up on the cabinet body 11 and lies in outside the cabinet body 11, has seted up a plurality of wind holes 14 on the cabinet body 11, and these wind holes 14 all communicate with wind channel 13.

The number of the air holes 14 is the same as that of the drawers 12, and each air hole 14 is positioned above the matched drawer 12 and is responsible for injecting cold air into the matched drawer 12. Meanwhile, the bottom surface of each drawer 12 is further provided with an air hole 15, and the air hole 15 is used for enabling air in the drawer 12 to flow into the adjacent drawer 12 instead of escaping from the cabinet 11 under the pushing of air pressure.

The cool air flowing in the air duct 13 is provided by an air chamber 21, and the air chamber 21 is provided on the cabinet 11, and as a preferable mode, the air chamber 21 is located below the cabinet 11.

The air chamber 21 is internally provided with a partition plate 22, the space in the air chamber 21 is divided into an air inlet passage 211 and an air outlet passage 212 by the partition plate 22, the air inlet passage 211 is communicated with the air duct 13, and the air outlet passage 212 is communicated with the cabinet body 11.

Referring to fig. 3, in a specific operation process, external cold air flows into each drawer 12 through the air inlet channel 211, the air duct 13 and the air holes 14, exchanges heat with the electrical components in the drawer 12, flows out through the air holes 15, is finally collected in the air outlet channel 212, and finally flows out through the air outlet channel 212.

Referring to fig. 4, for a centrally deployed low voltage switchgear, the air chambers 12 may be connected to each other, and cool air is provided from an external unified air source, and the cool air enters each drawer 12 in the cabinet 11 through the air chamber 12 and the air duct 13, exchanges heat with electrical components in the drawer 12, flows out of the drawer 12, and finally flows out of the exhaust channel 212.

In the process, air provided by a unified air source can be filtered, dust and the like can be effectively prevented from entering the cabinet body 11, and the problem of dust accumulation caused by heat dissipation of the opened cabinet door is fundamentally solved.

In addition, since the hot air is also discharged in a concentrated manner, the hot air can be directly discharged to the outside of the room, which does not cause the rise of the indoor temperature, because the indoor temperature is at a high level for a long time, which is not favorable for cooling the cabinet 11.

After the heat dissipation mode is used, the electric elements in the cabinet body 11 can be in a working environment with low dust amount and low temperature for a long time, and the electric elements can stably run for a long time.

Referring to fig. 1 and 5, as a specific embodiment of the low voltage switch cabinet provided by the application, a filtering module 3 is added to the air duct 13, and the filtering module 3 is detachably connected to the air duct 13 and is used for filtering the air flowing through the air duct 13 to further reduce the dust content of the cold air flowing into the drawer 12.

In some possible implementations, the filter modules 3 may be directly plugged into the air duct 13, and the old filter modules 3 may be pulled out for replacement.

In other possible implementations, the filter module 3 is composed of a connecting tube 31 and a filter element 32 disposed in the connecting tube 31, and both ends of the connecting tube 31 are detachably connected to the air duct 13.

The connection between the two ends of the connecting pipe 31 and the air duct 13 may be flange connection or clamp connection.

As an embodiment of the low-voltage switchgear cabinet provided by the application, the flow area of the air holes 14 tends to increase in the flow direction of the air, in order to balance the amount of cold air entering each drawer 12. It will be appreciated that if the flow areas of the air vents 14 are the same, then there will be insufficient air intake from the drawer 12 at the end of the air chute 13, which may result in undesirable heat dissipation from a portion of the drawer 12.

The flow area of the air holes 14 is adjusted to ensure that sufficient or even excessive cold air enters the drawer 12 at the end of the air duct 13, and the cold air flows into the exhaust passage 212 through the air holes 15 after sequentially passing through the remaining drawers 12.

On one hand, the air flow speed in each drawer 12 can be further improved in the mode, a better heat dissipation effect is obtained, and on the other hand, the heat dissipation effects of the plurality of drawers 12 can be consistent.

As an embodiment of the low-voltage switch cabinet provided by the application, the air holes 14 are inclined towards the bottom surface of the matched drawer 12, so that cold air is facilitated to enter the lower drawer 12 through the air holes 15, and the flowing direction of air in the drawer 12 can be kept stable.

Referring to fig. 6, as an embodiment of the low voltage switch cabinet, a temperature sensor 41, a wireless communication unit 8 and a controller 6 are added on the cabinet body 11, and the temperature sensor 41 is located at a communication position between the cabinet body 11 and the exhaust channel 212 and is used for detecting a temperature of air flowing out from the cabinet body 11.

It should be understood that when the electric components in the cabinet 11 are in a stable operating state, the heat generation amount is relatively stable, which means that the temperature of the air flowing out of the cabinet 11 is also stable, and if the temperature of the air flowing out of the cabinet 11 is abnormal, it indicates that the air intake amount is insufficient or the electric components are in failure.

The wireless communication unit 8 and the controller 6 are both installed outside the cabinet body 11, the wireless communication unit 8 and the temperature sensor 41 are both connected with the controller 6, and the controller 6 is used for communicating with an upper computer through the wireless communication unit 8 according to the feedback of the temperature sensor 41.

That is, when the temperature of the outflow air of the cabinet body 11 is found to be abnormal, the wireless communication unit 8 can give an alarm to the upper computer to inform maintenance personnel to check or maintain the outflow air in the future, and faults or hidden troubles are eliminated.

Further, an alarm 43 is added, and the alarm 43 is fixed on the cabinet body 11 and is positioned outside the cabinet body 11.

Alarm 43 is connected with controller 6, and when wireless communication unit 8 carried out the communication with the host computer, alarm 43 can send out the police dispatch newspaper, and on the one hand, the maintenance personal that conveniently arrives carries out quick location, and on the other hand, if there is the tour personnel nearby, also can handle before finding behind the alarm.

In some possible implementations, the alarm 43 uses an audible alarm or a photoelectric alarm or both alarms.

Referring to fig. 7, the controller 6 may be a CPU, microprocessor, ASIC, or one or more integrated circuits for controlling the execution of the programs described above. The controller 6 is mainly composed of a CPU601, a RAM602, a ROM603, a system bus 604, and the like, wherein the CPU601, the RAM602, and the ROM603 are connected to the system bus 604.

The temperature sensor 31 and the wireless communication unit 8 are connected to the system bus 604 via a communication circuit, and the alarm 33 is connected to the system bus 604 via a control circuit.

Referring to fig. 8, the wireless communication unit 8 includes an antenna 801, a radio frequency device 802, and a baseband device 803, wherein the antenna 801 is connected to the radio frequency device 802, and the radio frequency device 802 is connected to the baseband device 803. In the uplink direction, the radio frequency device 802 receives information transmitted by the upper computer through the antenna 801 and then transmits the information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the received information and sends the processed information to the radio frequency device 802, and the radio frequency device 802 processes the information and sends the processed information to the upper computer through the antenna 801.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the 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. A low-voltage switchgear cabinet, comprising:

a plenum (21);

a cabinet body (11) arranged on the air chamber (21);

the drawers (12) are sequentially arranged on the cabinet body (11) and are connected with the cabinet body (11) in a sliding manner;

the air duct (13) is arranged on the cabinet body (11) and is positioned outside the cabinet body (11);

the air holes (14) are formed in the cabinet body (11) and communicated with the air channel (13), and each air hole (14) is located above the matched drawer (12);

an air hole (15) provided on the bottom surface of the drawer (12); and

a partition plate (22) provided in the air chamber (21) and dividing a space in the air chamber (21) into an intake passage (211) and an exhaust passage (212);

the air duct (13) is communicated with the air inlet channel (211), and the cabinet body (11) is communicated with the exhaust channel (212).

2. The low-voltage switch cabinet according to claim 1, further comprising a filtering module (3) disposed on the air duct (13), wherein the filtering module (3) is detachably connected to the air duct (13).

3. The low-voltage switchgear cabinet according to claim 2, wherein the filtering module (3) comprises a connecting pipe (31) and a filter element (32) arranged in the connecting pipe (31);

both ends of the connecting pipe (31) are detachably connected to the air duct (13).

4. A low-voltage switchgear, according to any of claims 1 to 3, characterized in that the flow area of the air aperture (14) tends to increase in the direction of flow of the air.

5. Low-voltage switchgear cabinet according to claim 4, characterized in that the air opening (14) is inclined towards the bottom of the matching drawer (12).

6. The low-voltage switchgear cabinet according to claim 1, further comprising a temperature sensor (41), a wireless communication unit (8) and a controller (6) arranged in the cabinet body (11);

the temperature sensor (41) is positioned at the communication part of the cabinet body (11) and the exhaust channel (212);

the wireless communication unit (8) and the controller (6) are positioned outside the cabinet body (11);

the controller (6) is used for communicating with the upper computer through the wireless communication unit (8) according to the feedback of the temperature sensor (41).

7. Low-voltage switchgear cabinet according to claim 6, characterized in that it further comprises an alarm (43) connected to the controller (6);

the alarm (43) is arranged on the cabinet body (11) and is positioned outside the cabinet body (11).

8. Low-voltage switchgear according to claim 7, characterized in that said alarm (43) comprises an acoustic alarm and/or an optical alarm.