CN214481718U

CN214481718U - PLC control cabinet with circulating ventilation

Info

Publication number: CN214481718U
Application number: CN202120550059.3U
Authority: CN
Inventors: 赵勇; 韩鹏; 孙永健
Original assignee: Shandong Zhengtuo Electrical Equipment Co ltd
Current assignee: Shandong Zhengtuo Electrical Equipment Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-10-22
Anticipated expiration: 2031-03-17

Abstract

The utility model provides a PLC switch board of circulation ventilation, the intelligent cabinet temperature adjusting device comprises a cabinet body, the outlet duct, the check valve, the supporting leg, the seal pot, the semiconductor refrigeration piece, blast pipe and heating panel, the inside of seal pot is provided with the fan, the inner wall of seal pot is provided with the spacing shoulder that is used for fixed fan, the below of spacing shoulder is provided with the dust screen, the dust screen passes through a plurality of spring coupling with spacing shoulder, the blast pipe extends to the front side bending of the cabinet body from the rear side of the cabinet body, the end of blast pipe is provided with the air discharge cap, the side of the cabinet body is provided with a plurality of louvres along cabinet body width direction distribution, the louvre is rectangular shape, the heating panel includes horizontal slab, vertical slab and arc piece. The utility model discloses the assembly efficiency and the dustproof performance of well dust screen and seal pot are higher, and the heat dispersion of heating panel is better, and the blowout design of blast pipe is more reasonable moreover, has effectively improved the radiating efficiency of this device, reasonable in design, simple structure, and ventilation effect is better, is fit for extensive the popularization.

Description

PLC control cabinet with circulating ventilation

Technical Field

The utility model belongs to the technical field of the electrical control cabinet, especially, relate to a PLC switch board of circulation ventilation.

Background

The PLC control cabinet has the protection functions of overload, short circuit, open-phase protection and the like. It has the characteristics of compact structure, stable operation and complete functions. The PLC integrated control cabinet can be combined according to the size of an actual control specification, so that not only can single-cabinet automatic control be realized, but also a distributed control system can be formed by a plurality of cabinets through an industrial Ethernet or an industrial field bus network. The PLC control cabinet can adapt to various industrial automation control occasions of various sizes and can be widely applied to the industries of electric power, metallurgy, chemical industry, papermaking, environmental protection sewage treatment and the like.

The existing PLC control cabinet generally has the problem of insufficient heat dissipation performance, so that the control cabinet needs to be reasonably cooled by adopting various cooling or ventilation means. Prior patent art CN201921906836.2 circulating ventilation's PLC switch board, including the PLC switch board, the equal fixedly connected with supporting leg in four edges of PLC switch board bottom surface, the last fixed surface intercommunication of PLC switch board has two sets of symmetrical blast pipes, every the surface of blast pipe all fixed intercommunication has the check valve, the front of PLC switch board has the sealing door through the fixed hinge joint of hinge. The device design is rational in infrastructure, it can be through the rotating electrical machines start-up with the air from the inside that dust screen department inhales and blows in the PLC switch board through the blast pipe, under the effect of wing type fin, give off the air heat and handle, make wind-force and semiconductor refrigeration piece contact again, semiconductor refrigeration piece circular telegram start carries out refrigeration treatment to the air, the hot gas is discharged through the outlet duct in the extrusion PLC switch board, avoid electrical components to work the heat too high for a long time in the PLC switch board, lead to its inside circuit phenomenon of ageing to appear, the service life of the device is prolonged. However, because the distribution of the electric devices in the control cabinet is relatively close to the front side of the cabinet body, the flow stroke of the gas in the exhaust pipe of the device is long, and the spraying position is not designed reasonably, the ventilation and cooling capacity of the device is not fully exerted; moreover, the heat dissipation performance of the heat sink is not good; secondly, the dustproof effect of cabinet body bottom is relatively poor and difficult assembly.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that foretell PLC switch board exists, provide a reasonable in design, simple structure, better, the higher and dustproof better circulation ventilation's of effect PLC switch board of heat dispersion, circulation of air efficiency.

In order to achieve the above purpose, the utility model adopts the technical scheme that the PLC control cabinet with circulating ventilation comprises a cabinet body, wherein the top of the cabinet body is provided with an air outlet pipe and a one-way valve, the bottom of the cabinet body is provided with supporting legs, a sealing tank is arranged between the supporting legs, a plurality of semiconductor refrigerating sheets are arranged in the middle of the inner part of the cabinet body, an exhaust pipe communicated with the sealing tank is arranged in the inner part of the cabinet body, the exhaust pipe is distributed in the inner part of the cabinet body in a snake shape, a pressing plate and a positioning column for fixing the exhaust pipe are arranged in the inner part of the cabinet body, a plurality of heating panels are arranged on the outer side of the cabinet body, the inner part of the sealing tank is provided with a fan, a limiting shoulder for fixing the fan is arranged on the inner wall of the sealing tank, a dust screen is arranged below the limiting shoulder, and the dust screen is connected with the limiting shoulder through a plurality of springs, the utility model discloses a cabinet, including the cabinet body, the blast pipe is followed the rear side of the cabinet body and is extended to the front side bending of the cabinet body, the end of blast pipe is provided with the exhaust cap, the exhaust cap is the cylindric filter screen, the exhaust cap is located between 1/2 ~ 2/3 of cabinet body width, the side of the cabinet body is provided with a plurality of heat dissipation strip holes that distribute along cabinet body width direction, the one end setting of heating panel is in heat dissipation strip hole, the heating panel is provided with a plurality of upper and lower evenly distributed's horizontal slab in its one end towards the internal portion of cabinet, the rear side of horizontal slab is connected through a vertical slab, the upper and lower end of vertical slab all is provided with the bolt hole that is used for the cross-under bolt, vertical slab is provided with the arc piece of two symmetries in its one side towards the external portion of cabinet, the tip and the vertical slab of arc piece are connected perpendicularly.

Preferably, the side of the cabinet body is provided with a plurality of concentric heat dissipation hole groups above the heat dissipation plate, and each heat dissipation hole group comprises a plurality of heat dissipation round holes distributed in a circular array.

Preferably, the horizontal plate is located in the heat sink hole and extends horizontally toward the inside of the cabinet, and an end of the horizontal plate abuts against the exhaust pipe.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

1. the utility model provides a PLC control cabinet with circulating ventilation, which can perform efficient heat exchange between the gas sprayed out of the exhaust pipe and the electric element generating current heat by shortening the length of the exhaust pipe, and can play a role of filtering by utilizing the exhaust cap; the dustproof net and the sealing tank are in elastic connection, so that the aim of elastically adjusting air pressure can be fulfilled, meanwhile, the dustproof net can be prevented from being blocked, and the assembly efficiency of the dustproof net and the sealing tank is improved; the heating panel of this device has higher radiating efficiency, and its mounted position air current on the cabinet body passes through the performance better moreover, has further improved the ventilation effect and the radiating efficiency of this device. The utility model relates to a rationally, simple structure, ventilation effect is better, is fit for extensive the popularization.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a right side view of a circulating ventilation PLC control cabinet provided by an embodiment;

FIG. 2 is a front view of a circulating ventilation PLC control cabinet provided by the embodiment;

FIG. 3 is a schematic view of the internal structure of the circulation-ventilated hermetic vessel provided by the embodiment;

fig. 4 is an isometric view of a heat sink provided in accordance with an embodiment;

fig. 5 is a plan view of a heat dissipation plate according to an embodiment;

in the above figures, 1, a cabinet body; 2. an air outlet pipe; 3. a one-way valve; 4. supporting legs; 5. sealing the tank; 51. a limiting shoulder; 6. a semiconductor refrigeration sheet; 7. an exhaust pipe; 8. pressing a plate; 9. a positioning column; 10. a heat dissipation plate; 101. a horizontal plate; 102. a vertical plate; 103. an arc-shaped sheet; 11. a dust screen; 12. a spring; 13. an exhaust cap; 14. a group of radiating holes; 15. a fan.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" used herein refer to the same directions as the drawings, and do not limit the structure.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the utility model provides a circulating ventilation's PLC switch board, including the cabinet body 1, the top of the cabinet body 1 is provided with outlet duct 2 and check valve 3, the bottom of the cabinet body 1 is provided with supporting leg 4, be provided with seal pot 5 between the supporting leg 4, be provided with a plurality of semiconductor refrigeration pieces 6 in the middle of the inside of the cabinet body 1, the inside of the cabinet body 1 is provided with blast pipe 7 with the seal pot intercommunication, blast pipe 7 is snakelike distribution in the inside of the cabinet body, the inside of the cabinet body 1 is provided with clamp plate 8 and reference column 9 that are used for fixing blast pipe 7, the outside of the cabinet body 1 is provided with a plurality of heating panels 10. Wherein, outlet duct 2, check valve 3, supporting leg 4, semiconductor refrigeration piece 6, blast pipe 7, clamp plate 8 and reference column 9 are prior art, and this embodiment is no longer repeated herein. The utility model discloses a key point is to the connected mode of seal pot 5 and dust screen 11, the blowout structure and the structure of blowout position and heating panel of blast pipe 7 improve to improve the holistic ventilation effect of this device.

Specifically, the utility model is provided with a fan 15 inside a sealed tank 1, the inner wall of the sealed tank 5 is provided with a limit shoulder 51 for fixing the fan, a dust screen 11 is arranged below the limit shoulder 51, the dust screen 11 is connected with the limit shoulder 51 through a plurality of springs 12, an exhaust pipe 7 extends from the rear side of the cabinet body to the front side of the cabinet body in a bending way, the tail end of the exhaust pipe 7 is provided with an exhaust cap 13, the exhaust cap 13 is a cylindrical filter screen, the exhaust cap 13 is positioned between 1/2-2/3 of the width of the cabinet body, the side of the cabinet body 1 is provided with a plurality of radiating strip holes distributed along the width direction of the cabinet body, one end of a radiating plate 10 is arranged in the radiating strip holes, one end of the radiating plate 10 facing the interior of the cabinet body is provided with a plurality of horizontal plates 101 uniformly distributed from top to bottom, the rear side of the horizontal plates 101 is connected through a vertical plate 102, the upper and lower ends of the vertical plate 102 are provided with bolt holes for connecting bolts, the vertical plate 102 is provided with two symmetrical arc-shaped pieces 103 on one side facing the outside of the cabinet body, and the end parts of the arc-shaped pieces 103 are perpendicularly connected with the vertical plate 102. In this device, elastic connection is established through spring 12 to seal pot 5 and dust screen 11, and dust screen 11 can be according to the difference of atmospheric pressure and carry out automatic adjustment, reaches the purpose of balanced atmospheric pressure on the one hand, and on the other hand can make dust screen 11 have elastic vibration ability to avoid appearing the condition of jam, prolonged the actual life of the internal electric elements of cabinet to a certain extent. It should be noted that the spring 12, the sealing can 5 and the dust screen 11 may be in a hook-joint form, or may be in a bolt-fastening form, and the present invention preferably adopts a hook-joint form, so as to obtain higher assembly efficiency and better elastic adjustment performance.

Furthermore, the length of the exhaust pipe 7 is shortened, so that the spraying position of the exhaust pipe can be positioned close to the front side of the cabinet, the sprayed gas can perform efficient heat exchange with electric elements generating current heat, and the exhaust cap 13 at the end part of the exhaust pipe can play a role of filtering. In this device, the junction of heating panel 10 and cabinet body 1 adopts the design of heat dissipation strip hole, makes can pass through the gas that flows between its horizontal plate 101, and horizontal plate 101 itself and vertical plate 102, arc plate 103 homoenergetic are through heat-conduction and with the heat release of the internal portion of cabinet to the external environment in addition, and ventilation effect is better, and the radiating efficiency is higher. Meanwhile, the reasonable design of the number of the horizontal plates 101 is beneficial to improving the dustproof efficiency at the radiating holes; the arc extension direction of the arc-shaped sheet 103 can be adjusted manually by means of tools so as to adapt to the equipment and environment near the control cabinet and obtain the optimal air circulation direction.

In order to improve the ventilation effect of the internal portion of cabinet, the utility model discloses be provided with a plurality of radiating hole groups 14 that are located the heating panel top and are endocentric in the side of the cabinet body 1, radiating hole group 14 utilizes the radiating round hole to increase the internal portion of cabinet and outside flow area including being a plurality of radiating round hole holes that circular array distributes, has further improved the ventilation effect of this device.

In order to improve the heat dissipation performance of the heat dissipation plate 10, the utility model provides a horizontal plate 101 is located the heat dissipation bar hole and extends towards the inside level of the cabinet body, and the tip and the blast pipe 7 butt of horizontal plate 101. An air circulation channel is formed between the adjacent horizontal plates 101 and the heat dissipation strip holes, so that the purpose of ventilation can be achieved, high stability can be obtained, the connection reliability is high, and the stability of the exhaust pipe 7 between the positioning column 9 and the pressing plate 8 can be improved. In the device, the exhaust pipe 7 is not provided with a pressing plate on the side facing the heat radiating plate, and the pressing plate is arranged on the side facing the center of the cabinet body, so that higher ventilation capacity can be ensured.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. A PLC control cabinet with circulating ventilation comprises a cabinet body, wherein an outlet pipe and a one-way valve are arranged at the top of the cabinet body, supporting legs are arranged at the bottom of the cabinet body, sealing tanks are arranged among the supporting legs, a plurality of semiconductor refrigerating sheets are arranged in the middle of the interior of the cabinet body, an exhaust pipe communicated with the sealing tanks is arranged in the cabinet body, the exhaust pipe is distributed in the cabinet body in a snake shape, a pressing plate and a positioning column for fixing the exhaust pipe are arranged in the cabinet body, a plurality of heat dissipation plates are arranged on the outer side of the cabinet body, the PLC control cabinet is characterized in that a fan is arranged in the sealing tanks, a limiting shoulder for fixing the fan is arranged on the inner wall of each sealing tank, a dustproof net is arranged below each limiting shoulder, the dustproof net is connected with the limiting shoulders through a plurality of springs, and the exhaust pipe extends from the rear side of the cabinet body to the front side of the cabinet body in a bending manner, the terminal of blast pipe is provided with the exhaust cap, the exhaust cap is the cylindric filter screen, the exhaust cap is located between 1/2 ~ 2/3 of cabinet body width, the side of the cabinet body is provided with a plurality of heat dissipation strip holes that distribute along cabinet body width direction, the one end setting of heating panel is in heat dissipation strip hole, the heating panel is provided with a plurality of horizontal slab that evenly distributed from top to bottom in its one end towards the internal portion of cabinet, the rear side of horizontal slab is connected through a vertical slab, the last lower extreme of vertical slab all is provided with the bolt hole that is used for the cross-under bolt, vertical slab is provided with the arc piece of two symmetries in its one side towards the external portion of cabinet, the tip and the vertical slab of arc piece are connected perpendicularly.

2. The circulating ventilation PLC control cabinet as claimed in claim 1, wherein a plurality of concentric heat dissipation hole sets are arranged on the side face of the cabinet body, and the heat dissipation hole sets comprise a plurality of circular heat dissipation holes distributed in a circular array.

3. The circulating ventilation PLC control cabinet according to claim 2, wherein the horizontal plate is located in the heat sink bar hole and extends horizontally towards the interior of the cabinet body, and the end of the horizontal plate is abutted with the exhaust pipe.