PLC control cabinet

Abstract

The utility model discloses a PLC control cabinet, which comprises a cabinet body and a cabinet door hinged on the cabinet body, the cabinet body comprises an outer cabinet body, an inner cabinet body, an outer cabinet door hinged on the outer cabinet body and an inner cabinet door hinged on the inner cabinet body, the inner cabinet body is used for installing control equipment and a circuit, the inner cabinet body is fixedly sleeved in the outer cabinet body, and the inner cabinet door is fixedly sleeved in the inner cabinet body. A gap is reserved between the outer wall of the inner cabinet body and the inner wall of the outer cabinet body, a lower opening is formed in the bottom wall of the inner cabinet body, strip-shaped through holes are formed in the left side wall and the right side wall, and the inner cabinet door and the outer cabinet door are arranged on the same side. The top of the outer cabinet body is provided with a rainproof top cover, the bottom of the rainproof top cover is communicated with the outer cabinet body, an air inlet is arranged between the rainproof top cover and the outer cabinet body, and the outer brim of the rainproof top cover is shielded above the air inlet; the cabinet further comprises an exhaust pipe and an exhaust fan, the exhaust fan is arranged outside the outer cabinet body, one end of the exhaust pipe is communicated with the inner cabinet body through the top wall of the inner cabinet body, and the other end of the exhaust pipe is communicated with the exhaust fan. Heat dissipation of electrical equipment and circuits in the cabinet is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of outdoor PLC control cabinets, and more specifically, the utility model relates to a PLC control cabinet with heat dissipation, dustproof and waterproof functions. Background Art

[0002] PLC control cabinet refers to a programmable control cabinet, which is an electrical cabinet that can realize the control of motors, switches, etc. PLC control cabinet has functions such as overload, short circuit, and phase loss protection, stable operation, compact structure, and complete functions, and can be used in combination according to the actual control scale. PLC control cabinets are often set up in indoor factories, and there is also a need to set up outdoors. PLC control cabinets set up outdoors require strong heat dissipation, dust and rain protection functions. Based on actual needs, the prior art discloses a dust-proof heat dissipation type PLC control cabinet (Announcement No. CN 216626422 U), which is equipped with an insulating umbrella on the top of the cabinet to block rain, shade, and insulate, and is dust-proof by setting a filter device at the heat dissipation hole and the air inlet. Although the umbrella is set up to help the ventilation and heat insulation of the cabinet, it affects the overall stability of the control cabinet. The umbrella set up on the top is easily blown over by wind and rain, and the conventional filter device is cumbersome to disassemble and wash, and the consumables are replaced, which affects the use effect. Utility Model Content

[0003] An object of the present invention is to solve at least the above-mentioned disadvantages and to provide at least the advantages to be described below.

[0004] The utility model provides a PLC control cabinet, which is provided with an inner cabinet in an outer cabinet, and the inner cabinet is used for installing control equipment and circuit connection, such as the installation and connection of a PLC controller, a power module, an input and output module, a relay, a circuit breaker, etc. The bottom wall of the inner cabinet is provided with a lower opening, the front side wall is provided with an inner cabinet door, the left and right side walls are provided with strip through holes, and the top wall is provided with an exhaust pipe, one end of the exhaust pipe is connected to the inner cabinet, and the other end is connected to the exhaust fan. The utility model designs the inner and outer cabinet structure, and the inner cabinet is connected with the outer cabinet through the lower opening and the strip through hole, so that the airflow flows into the outer cabinet from the air inlet of the outer cabinet, and then enters the inner cabinet from the lower opening and the strip through hole, which is beneficial to the gas flow of the inner cabinet, promotes the heat dissipation of the electrical equipment and circuits of the inner cabinet, and is beneficial to the heat insulation and water insulation from the outside, and can also solve the problem of instability caused by placing an umbrella on the top for thermal insulation in the prior art.

[0005] The utility model provides a PLC control cabinet, which comprises a cabinet body and a cabinet door hinged on the cabinet body, the cabinet body comprises an outer cabinet body and an inner cabinet body, and the outer cabinet door hinged on the outer cabinet body and the inner cabinet door hinged on the inner cabinet body, the inner cabinet body is used to install control equipment and circuits, the inner cabinet body is fixedly sleeved in the outer cabinet body, a gap is left between the outer wall of the inner cabinet body and the inner wall of the outer cabinet body, the bottom wall of the inner cabinet body is set as a lower opening, the left and right side walls are both provided with strip-shaped through holes, and the inner cabinet door and the outer cabinet door are arranged on the same side;

[0006] A rainproof cover is provided on the top of the outer cabinet, the bottom of the rainproof cover is connected to the outer cabinet, an air inlet is provided between the rainproof cover and the outer cabinet, and the outer eaves of the rainproof cover are shielded above the air inlet;

[0007] It also includes an exhaust pipe and an exhaust fan, wherein the exhaust fan is placed outside the outer cabinet, one end of the exhaust pipe is connected to the inner cabinet through the top wall of the inner cabinet, and the other end is connected to the exhaust fan.

[0008] Preferably, it further comprises a filter screen which is arranged outside the air inlet.

[0009] Preferably, it further comprises an air hood which is an L-shaped duct, one end of the air hood is connected to the air inlet, the other end is provided with the filter, and the end of the air hood where the filter is provided is open downward.

[0010] Preferably, a wind hood is provided on the outer peripheral cover of the exhaust fan, and the opening of the wind hood is downward or inclined downward.

[0011] Preferably, it also includes a recoil pipe, a valve and a sealing plate, the sealing plate is a square hard plate, the opening of the wind hood is rectangular, and both sides of the rectangular opening are provided with clamping holes matching the sealing plate, and the sealing plate is used to seal the opening of the wind hood; one end of the recoil pipe is connected to the induced draft hood and is located between the air inlet and the filter, and the other end is connected to the wind hood and is located between the exhaust fan and the clamping hole, and the recoil pipe is provided with the valve for controlling the opening and closing of the recoil pipe.

[0012] Preferably, a sealing plate is further included, wherein the sealing plate is a hard plate body matching the air inlet and is used to seal the air inlet.

[0013] Preferably, a slot is provided on the inner side of the air inlet for clamping the sealing plate on the inner side of the air inlet.

[0014] Preferably, the side surfaces of the blocking plate and the sealing plate are both provided with a rubber layer.

[0015] Preferably, the outer surface of the outer cabinet is provided with a waterproof layer and a sunshade and heat insulation layer in sequence from the outside to the inside.

[0016] The utility model at least has the following beneficial effects:

[0017] Firstly, the utility model arranges an inner and outer cabinet body nesting structure, which is beneficial to blocking rainwater and shading and heat insulation, and the inner cabinet body is connected with the outer cabinet body through the lower opening and the strip through hole. The exhaust fan suctions the air flow between the inner and outer cabinet bodies and inside the inner cabinet body, which is beneficial to the gas flow in the inner cabinet body, promotes the heat dissipation of the electrical equipment and circuits in the inner cabinet body, and is beneficial to heat insulation and water isolation from the outside. It can also solve the problem of instability caused by placing umbrellas on the top for thermal insulation in the prior art.

[0018] Secondly, the utility model arranges the outward opening of the induced draft hood to face downward, thereby reducing the accumulation of filtered sand and dust on the filter net.

[0019] Thirdly, the utility model is provided with a recoil pipe, a valve and a blocking plate, so that the gas flows from the recoil pipe into the induced draft hood to backwash the filter, which is convenient for cleaning and reuse of the filter without the cumbersome process of disassembling and assembling the filter.

[0020] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of an implementation form of the PLC control cabinet described in the utility model;

[0022] Figure 2 This is a structural diagram of another implementation form of the PLC control cabinet of the utility model;

[0023] Figure 3 for Figure 2 Schematic diagram of the structure of B;

[0024] Figure 4 for Figure 2 Schematic diagram of the structure of A.

[0025] Among them, there are an outer cabinet body 1; a strip through hole 2; a wind hood 3; an exhaust pipe 4; a filter 5; a rainproof top cover 6; an outer cabinet door 7; an inner cabinet door 8; a clamping hole 9; a valve 10; a recoil pipe 11; an air hood 12; an air inlet 13; a clamping slot 14; and an inner cabinet body 15. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with embodiments so that those skilled in the art can implement the invention with reference to the description.

[0027] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial sources unless otherwise specified; in the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, set, or detachably connected, set, or connected and set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood in specific circumstances. The orientation or position relationship indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0028] Figure 1 The embodiment of the present invention shows an implementation form of a PLC control cabinet, which includes a cabinet body and a cabinet door hinged on the cabinet body. The cabinet body includes an outer cabinet body 1 and an inner cabinet body 15, as well as an outer cabinet door 7 hinged on the outer cabinet body 1 and an inner cabinet door 8 hinged on the inner cabinet body 15. The inner cabinet body 15 is used to install control equipment and circuits. The inner cabinet body 15 is fixedly sleeved in the outer cabinet body 1. A gap is left between the outer wall of the inner cabinet body 15 and the inner wall of the outer cabinet body 1. For example, the inner cabinet body 15 is suspended in the outer cabinet body 1 by a support rod or a support frame. The gap is used for gas to circulate between the inner and outer cabinet bodies 1. The bottom wall of the inner cabinet body 15 is set as a lower opening. The left and right side walls are both provided with strip through holes 2. It is better that the strip through holes 2 are arranged in the middle and / or lower part of the left and right side walls. It is better that the long side of the strip through holes 2 is parallel to the bottom surface of the cabinet body. The inner cabinet door 8 and the outer cabinet door 7 are arranged on the same side.

[0029] A rainproof top cover 6 is provided on the top of the outer cabinet 1, the bottom of the rainproof top cover 6 is connected to the outer cabinet 1, an air inlet 13 is provided between the rainproof top cover 6 and the outer cabinet 1, and the outer eaves of the rainproof top cover 6 are shielded above the air inlet 13;

[0030] It also includes an exhaust pipe 4 and an exhaust fan, which is placed outside the outer cabinet 1. One end of the exhaust pipe 4 is connected to the inner cabinet 15 through the top wall of the inner cabinet 15, and the other end is connected to the exhaust fan.

[0031] The utility model arranges an inner cabinet 15 in an outer cabinet 1, and the inner cabinet 15 is used to install control equipment and circuits, such as PLC controllers, power modules, input and output modules, relays, circuit breakers, etc., and connect circuits. The bottom wall of the inner cabinet 15 is arranged as a lower opening, the front side wall is arranged as an inner cabinet door 8, the left and right side walls are arranged with strip through holes 2, and the top wall is arranged with an exhaust duct 4. One end of the exhaust duct 4 is connected with the inner cabinet 15 through the top wall, and the other end is connected with the exhaust fan.

[0032] The working process of the utility model is as follows: according to the needs of the factory or construction, the PLC control cabinet is placed outdoors for use, the rainproof top cover 6 on the top of the outer cabinet 1 and the outer wall of the outer cabinet 1 are used to block rain and provide sunshade and heat insulation, the exhaust fan is started to suck the airflow into the outer cabinet 1 from the air inlet 13 on the top of the outer cabinet 1, and then enter the inner cabinet 15 from the lower opening of the inner cabinet 15 and the strip through hole 2, and then be extracted from the top of the inner cabinet 15, which is beneficial to the gas flow of the inner cabinet 15, promotes the heat dissipation of the electrical equipment and circuits of the inner cabinet 15, is beneficial to heat insulation and water isolation from the outside, and can also solve the problem of instability caused by placing an umbrella on the top for thermal insulation in the prior art.

[0033] On the basis of the above implementation, a filter screen 5 is further included, which is arranged outside the air inlet 13 and is used to filter sand and dust entrained in the air through the filter screen 5 before the air enters the outer cabinet 1.

[0034] Based on the above implementation, Figure 2-4 As shown, it also includes an air hood 123, which is an L-shaped pipe. One end of the air hood 123 is connected to the air inlet 13, and the filter 5 is arranged at the other end. The air hood 123 is provided with one end of the filter 5 opening downward. The outward opening of the air hood 123 facing downward can reduce the accumulation of filtered sand and dust on the filter 5.

[0035] On the basis of the above implementation, a wind hood 3 is provided on the outer peripheral cover of the exhaust fan, and the opening of the wind hood 3 is downward or inclined downward to guide the wind direction of the exhaust fan.

[0036] On the basis of the above implementation, it also includes a recoil pipe 11, a valve 10 and a blocking plate, wherein the blocking plate is a square hard plate body, the opening of the wind hood 3 is rectangular, and both sides of the rectangular opening are provided with card holes 9 matching the blocking plate, and the blocking plate is used to block the opening of the wind hood 3; one end of the recoil pipe 11 is connected to the draft hood 123 and is located between the air inlet 13 and the filter 5, and the other end is connected to the wind hood 3 and is located between the exhaust fan and the card hole 9. The recoil pipe 11 is provided with the valve 10 for controlling the on and off of the recoil pipe 11, and the card hole 9 is used to insert the blocking plate on the opening of the wind hood 3 to block the opening of the wind hood 3, so that the gas flows from the recoil pipe 11 into the draft hood 123 to backwash the filter 5.

[0037] On the basis of the above implementation, a sealing plate is further included, and the sealing plate is a hard plate body matched with the air inlet 13, and is used to block the air inlet 13. When the filter 5 needs to be cleaned, the air inlet 13 is blocked one by one with the sealing plate for backwashing, so that the filter 5 is cleaned and reused, without the cumbersome process of disassembling the filter 5.

[0038] On the basis of the above implementation, a clamping slot 14 is provided inside the air inlet 13 for clamping the sealing plate inside the air inlet 13 .

[0039] The working process of the utility model is as follows: according to the needs of the factory or construction, the PLC control cabinet is placed outdoors for use, the rainproof top cover 6 on the top of the outer cabinet 1 and the outer wall of the outer cabinet 1 are used to block rain and provide sunshade and heat insulation, the exhaust fan is started to suck the airflow into the outer cabinet 1 from the air inlet 13 on the top of the outer cabinet 1, and then enter the inner cabinet 15 from the lower opening of the inner cabinet 15 and the strip through hole 2, and then be drawn out from the top of the inner cabinet 15, and the filter 5 filters the sand and dust entrained in the air on the outside of the filter 5. After a period of time, when the filter 5 needs to be cleaned, a sealing plate is inserted into the inner side of a corresponding air inlet 13 through the card slot 14, the valve 10 of the corresponding recoil pipe 11 is opened, and the blocking plate is inserted into the opening of the wind hood 3 to block the opening of the wind hood 3. The backwashing completes the filter 5 of one air inlet 13, and the above-mentioned operation of the valve 10 of the air inlet 13 and the recoil pipe 11 is repeated. The air inlet 13 is blocked and backwashed one by one, which is convenient for cleaning and reuse of the filter 5, and there is no need for the cumbersome process of disassembly and assembly. When the filter 5 of each air inlet 13 is backwashed and cleaned, the blocking plate is pulled out from the opening of the wind hood 3, and the sealing plate is also taken out and placed in a specified place, and the filter 5 can be cleaned and continued to be used.

[0040] On the basis of the above implementation, rubber layers are provided on the sides of the blocking plate and the sealing plate to improve the blocking effect.

[0041] On the basis of the above implementation, the outer surface of the outer cabinet 1 is provided with a waterproof layer and a sunshade and heat-insulating layer in sequence from the outside to the inside, so as to improve the rain-blocking, sunshade and heat-insulating effects of the outer wall of the outer cabinet 1 .

[0042] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized.

Claims

1. A PLC control cabinet, comprising a cabinet body and a cabinet door hinged to the cabinet body, characterized in that: The cabinet comprises an outer cabinet and an inner cabinet, and an outer cabinet door hinged on the outer cabinet and an inner cabinet door hinged on the inner cabinet. The inner cabinet is used to install control equipment and circuits. The inner cabinet is fixedly sleeved in the outer cabinet. A gap is left between the outer wall of the inner cabinet and the inner wall of the outer cabinet. The bottom wall of the inner cabinet is set as a lower opening, and the left and right side walls are both provided with strip-shaped through holes. The inner cabinet door and the outer cabinet door are arranged on the same side. A rainproof cover is provided on the top of the outer cabinet, the bottom of the rainproof cover is connected to the outer cabinet, an air inlet is provided between the rainproof cover and the outer cabinet, and the outer eaves of the rainproof cover are shielded above the air inlet; It also includes an exhaust pipe and an exhaust fan, wherein the exhaust fan is placed outside the outer cabinet, one end of the exhaust pipe is connected to the inner cabinet through the top wall of the inner cabinet, and the other end is connected to the exhaust fan.

2. The PLC control cabinet according to claim 1, characterized in that: It also includes a filter screen, which is arranged outside the air inlet.

3. The PLC control cabinet according to claim 2, characterized in that: It also includes an air duct, which is an L-shaped pipe. One end of the air duct is connected to the air inlet, and the filter is arranged at the other end. The end of the air duct where the filter is arranged is open downward.

4. The PLC control cabinet according to claim 3, characterized in that: A wind hood is provided on the outer peripheral cover of the exhaust fan, and the opening of the wind hood is downward or inclined downward.

5. The PLC control cabinet according to claim 4, characterized in that: It also includes a recoil pipe, a valve and a sealing plate, wherein the sealing plate is a square hard plate, the opening of the wind hood is rectangular, and both sides of the rectangular opening are provided with clamping holes matching the sealing plate, and the sealing plate is used to seal the opening of the wind hood; one end of the recoil pipe is connected to the induced draft hood and is located between the air inlet and the filter, and the other end is connected to the wind hood and is located between the exhaust fan and the clamping hole, and the valve for controlling the on and off of the recoil pipe is provided on the recoil pipe.

6. The PLC control cabinet according to claim 5, characterized in that: It also includes a sealing plate, which is a hard plate body matching the air inlet and is used to seal the air inlet.

7. The PLC control cabinet according to claim 6, characterized in that: A clamping groove is arranged on the inner side of the air inlet for clamping the sealing plate on the inner side of the air inlet.

8. The PLC control cabinet according to claim 7, characterized in that: The sides of the blocking plate and the sealing plate are both provided with rubber layers.

9. The PLC control cabinet according to any one of claims 1 to 8, characterized in that: The outer surface of the outer cabinet is provided with a waterproof layer and a sunshade and heat insulation layer in sequence from the outside to the inside.

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