PLC automatic control cabinet

Abstract

The utility model belongs to the technical field of electrical equipment, in particular to a PLC automatic control cabinet, which comprises a protective shell and a bearing base, a temperature neutralization cavity is arranged in the protective shell, exhaust holes are arranged on two sides of the protective shell, the bearing base is positioned below the protective shell, and the temperature neutralization cavity is communicated with the bearing base. A flow guide inclined block is fixedly connected to the inner wall of the bottom end of the protective outer shell, a mounting inner shell is slidably connected to the interior of the flow guide inclined block, air holes are formed in the two sides of the mounting inner shell, and extension blocks are fixedly connected to the two sides of the mounting inner shell; while hot air in the mounting inner shell can be effectively discharged, the temperature of external cold air can be neutralized in the temperature neutralization cavity before the external cold air enters the mounting inner shell, so that the external cold air is prevented from directly entering the mounting inner shell to generate heat exchange, the possibility of condensation is reduced, and the service life of the mounting inner shell is prolonged. And stable operation of electrical components in the mounting inner shell is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical equipment, and in particular relates to a PLC automatic control cabinet. Background Art

[0002] PLC control cabinet refers to programmable control cabinet, control cabinet refers to a complete set of control cabinets, electrical cabinets that can realize the control of motors and switches, PLC automation control cabinet has protection functions such as overload, short circuit, and phase loss protection. It has a compact structure, stable operation, and complete functions. It can be combined according to the actual control scale. It can not only realize single cabinet automatic control, but also realize multiple cabinets through industrial Ethernet or industrial field bus network to form a distributed control system. Compared with traditional control cabinets, PLC automation control cabinets have more internal electrical components, and electrical components will generate heat during operation, causing the internal control cabinet to rise steadily. In order to achieve the purpose of heat dissipation, heat dissipation holes will be opened on both sides of the control cabinet. While the heat dissipation holes discharge the hot air, the outside cold air will also enter the control cabinet through the heat dissipation holes, causing the outside cold air to exchange heat with the hot air inside the control cabinet when entering the control cabinet, which is prone to condensation and affects the normal operation of the electrical components inside the control cabinet. Utility Model Content

[0003] The utility model provides a PLC automatic control cabinet, which has the characteristics of preventing external cold air from directly entering the cabinet body under the premise of ensuring the heat dissipation effect of the hot air inside the control cabinet.

[0004] The utility model provides the following technical solution: it includes a protective shell and a bearing base, a temperature neutralization chamber is provided inside the protective shell, exhaust holes are provided on both sides of the protective shell, the bearing base is located below the protective shell, a guide bevel is fixedly connected to the inner wall of the bottom end of the protective shell, an installation inner shell is slidably connected inside the guide bevel, air holes are provided on both sides of the installation inner shell, extension blocks are fixedly connected to both sides of the installation inner shell, a snap-fit ​​block is slidably connected inside the extension block, and the snap-fit ​​block is snapped to the protective shell.

[0005] A drain port is provided on the outside of the protective shell, the drain port is connected to the temperature neutralization chamber and is located at the bottom of the temperature neutralization chamber, and a blocking door is rotatably connected to one side of the protective shell.

[0006] Among them, a plurality of installation grooves are opened inside the bearing base, and a connecting block is fixedly connected between the bearing base and the protective shell.

[0007] Wherein, a clearance groove is provided inside the guide bevel block, and the installation inner shell slides inside the clearance groove.

[0008] Among them, a registration groove is formed inside the extension block, the engaging block passes through the extension block through the registration groove, and two limiting grooves are formed on the inner wall of the protective housing, and the positions of the limiting grooves correspond to those of the registration groove.

[0009] The beneficial effects of the present utility model are as follows: Through the cooperation of components such as the temperature neutralization chamber and the diversion inclined block, while ensuring that the hot air inside the installation inner shell can be effectively discharged, the temperature of the outside cold air can be neutralized inside the temperature neutralization chamber before entering the installation inner shell, thereby avoiding direct heat exchange between the outside cold air and the installation inner shell, reducing the possibility of condensation, and ensuring the stable operation of the electrical components inside the installation inner shell.

[0010] Parts not involved in this device are the same as those in the prior art or can be implemented using the prior art. Description of the Drawings

[0011] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0012] Figure 2 is a schematic diagram of the movement state of the sealing door in the present utility model;

[0013] Figure 3 is a cross-sectional structural schematic diagram of the protective housing in the present utility model;

[0014] Figure 4 is a cross-sectional structural schematic diagram of the protective housing in the present utility model;

[0015] Figure 5 is Figure 4 an enlarged schematic diagram of part A in

[0016] In the figure: 1. Protective housing; 11. Temperature neutralization chamber; 12. Exhaust hole; 13. Drainage port; 14. Sealing door; 15. Limiting groove; 2. Carrying base; 21. Installation groove; 22. Connecting block; 3. Diversion inclined block; 31. Yielding groove; 4. Installation inner shell; 41. Ventilation hole; 42. Extension block; 43. Engaging block; 44. Registration groove. Detailed Embodiment

[0017] Please refer to Figures 1 - 5, the present utility model provides the following technical solutions: It includes a protective housing 1 and a bearing base 2. A temperature neutralization chamber 11 is provided inside the protective housing 1. Exhaust holes 12 are provided on both sides of the protective housing 1. The bearing base 2 is located below the protective housing 1. A diversion inclined block 3 is fixedly connected to the inner wall of the bottom end of the protective housing 1. An installation inner shell 4 is slidably connected inside the diversion inclined block 3. Ventilation holes 41 are provided on both sides of the installation inner shell 4. Extension blocks 42 are fixedly connected to both sides of the installation inner shell 4. A clamping block 43 is slidably connected inside the extension block 42. The clamping block 43 is clamped to the protective housing 1.

[0018] In this embodiment: the protective shell 1 is used to support and connect various components, and the protective shell 1 can protect the installation inner shell 4, so as to prevent the installation inner shell 4 from being affected by the external environment. The bearing base 2 provided under the protective shell 1 is used to support and install the protective shell 1, so that the protective shell 1 can be at a certain height from the ground, thereby preventing the accumulated water from entering the protective shell 1 when there is water accumulation outside. The temperature neutralization cavity 11 provided inside the protective shell 1 is used to prevent the external cold air from directly entering the installation inner shell 4, and prevent the external cold air from condensing with the hot air inside the installation inner shell 4. The installation inner shell 4 is installed with electrical components, PLC control modules, etc., so as to achieve the purpose of automatic switch control and other operations. The electrical components inside the inner shell 4 will generate high temperature during operation, and air holes 41 are provided on both sides of the inner shell 4, so that the hot air inside the inner shell 4 can enter the temperature neutralization cavity 11 through the air holes 41, and exhaust holes 12 are provided on both sides of the protective outer shell 1, so that the hot air inside the temperature neutralization cavity 11 can be discharged from the inside of the protective outer shell 1 again, thereby ensuring the heat dissipation effect inside the inner shell 4, and when the external cold air enters the temperature neutralization cavity 11 through the exhaust holes 12, heat exchange will be generated in the temperature neutralization cavity 11 with the hot air inside the temperature neutralization cavity 11, so as to achieve the purpose of neutralizing the temperature of the external cold air, so that the air temperature inside the temperature neutralization cavity 11 is higher than that of the outside, thereby When the neutralized air in the temperature neutralization cavity 11 enters the installation inner shell 4 through the air vent 41, it is difficult for condensation to occur due to the small temperature difference with the internal temperature of the installation inner shell 4. The guide bevel 3 fixed on the inner wall of the bottom end of the protective outer shell 1 is used to guide the water droplets generated by the condensation phenomenon inside the protective outer shell 1. The guide bevel 3 has a slope, so that the water droplets generated by the condensation will flow to the bottom of the temperature neutralization cavity 11 through the guidance of the give way groove 31, and finally be discharged from the inside of the protective outer shell 1. The installation inner shell 4 slides inside the guide bevel 3, so that when the outside is in the summer with a higher temperature, the staff can slide the installation inner shell 4 downward inside the guide bevel 3, so that the air vent 41 is located lower than the exhaust hole 12. The principle of hot air moving upward makes it easier for the hot air to be discharged from the higher exhaust hole 12 after entering the temperature neutralization cavity 11 from the air vent 41. When the outside is in winter when the temperature is relatively low, the staff can slide the installation inner shell 4 upward inside the guide bevel 3 so that the air vent 41 is higher than the exhaust hole 12. Due to the principle that cold air moves downward, when the outside cold air enters the temperature neutralization cavity 11 from the exhaust hole 12, it is difficult to enter the installation inner shell 4 from the higher air vent 41, thereby preventing the cold air from reaching the installation inner shell 4 to generate heat exchange. The extension blocks 42 fixed on both sides of the installation inner shell 4 are used to extend the installation inner shell 4. The extension blocks 42 are provided with a snap-fitting block 43 sliding inside.So that when the staff slides the installation inner shell 4 to the appropriate height, the extension block 42 can be clamped by sliding the clamping block 43 into the extension block 42 and the inside of the protective outer shell 1, thereby achieving the purpose of fixing the position of the installation inner shell 4. Through the cooperation of components such as the temperature neutralization chamber 11 and the diversion inclined block 3, while ensuring that the hot air inside the installation inner shell 4 can be effectively discharged, the temperature of the outside cold air can be neutralized inside the temperature neutralization chamber 11 before entering the installation inner shell 4, thereby avoiding direct heat exchange when the outside cold air enters the installation inner shell 4 and reducing the possibility of condensation, ensuring the stable operation of the electrical components inside the installation inner shell 4.

[0019] A drain port 13 is opened on the outer side of the protective outer shell 1. The drain port 13 communicates with the temperature neutralization chamber 11 and is located at the bottom of the temperature neutralization chamber 11. A sealing door 14 is rotatably connected to one side of the protective outer shell 1; the drain port 13 opened on the outer side of the protective outer shell 1 is used to drain the water droplets condensed inside the temperature neutralization chamber 11. The drain port 13 communicates with the temperature neutralization chamber 11 and is located at the bottom of the temperature neutralization chamber 11. So that when condensation occurs inside the temperature neutralization chamber 11 due to the outside cold air, it will be guided by the diversion inclined block 3 to the bottom of the temperature neutralization chamber 11, and then discharged from the drain port 13 to the inside of the protective outer shell 1. The sealing door 14 rotatably connected to one side of the protective outer shell 1 is used to block or open the protective outer shell 1. The sealing door 14 is connected by hinges or hinges, so that the protective outer shell 1 can protect the installation inner shell 4 inside.

[0020] A number of installation grooves 21 are opened inside the bearing base 2. A connecting block 22 is fixedly connected between the bearing base 2 and the protective outer shell 1; the installation grooves 21 opened inside the bearing base 2 are used to assist in the installation of the bearing base 2. The inner wall of the installation groove 21 has threads, so that the staff can fix the bearing base 2 at an appropriate position through bolts. The fixedly connected connecting block 22 between the bearing base 2 and the protective outer shell 1 is used to connect the protective outer shell 1 and the bearing base 2 mechanically, so that the bearing base 2 can play a role in supporting the protective outer shell 1.

[0021] A relief groove 31 is opened inside the diversion inclined block 3. The installation inner shell 4 slides inside the relief groove 31; the relief groove 31 opened inside the diversion inclined block 3 is used to make way for the sliding of the installation inner shell 4, so that the staff can freely adjust the installation inner shell 4 to an appropriate height according to the outside environmental temperature, making it difficult for the outside cold air to enter the inside of the installation inner shell 4, or making it easier for the high-temperature air inside the installation inner shell 4 to be discharged from the inside of the protective outer shell 1.

[0022] The extension block 42 is internally provided with a positioning groove 44. The engaging block 43 penetrates through the extension block 42 through the positioning groove 44. Two limiting grooves 15 are provided on the inner wall of the protective housing 1, and the positions of the limiting grooves 15 correspond to those of the positioning groove 44. The positioning groove 44 provided inside the installation inner shell 4 is used to make way for the sliding of the engaging block 43, so that after the staff slides the installation inner shell 4 to an appropriate height, the position of the installation inner shell 4 can be clamped and fixed by sliding the engaging block 43 into the positioning groove 44 and the limiting groove 15. There are two limiting grooves 15, so that the staff can clamp the position of the installation inner shell 4 through the engaging block 43 when sliding the installation inner shell 4 to a higher or lower position.

[0023] The working principle and usage process of the present utility model: The staff can carry the protective housing 1 to an appropriate position and fix the bearing base 2 at an appropriate height through bolts or the like, so that the protective housing 1 can be fixed at an appropriate position and at a certain height from the ground. The staff can install electrical components inside the installation inner shell 4. The hot air generated during the operation of the electrical components inside the installation inner shell 4 can be discharged into the protective housing 1 through the ventilation holes 41 and discharged from the protective housing 1 through the exhaust holes 12, thereby ensuring the heat dissipation effect inside the installation inner shell 4. And when the outside cold air enters the temperature neutralization cavity 11 through the exhaust holes 12, heat exchange will occur with the hot air inside the temperature neutralization cavity 11, achieving the purpose of neutralizing the temperature of the outside cold air, so that the air temperature inside the temperature neutralization cavity 11 is higher than the outside, and then when the neutralized air inside the temperature neutralization cavity 11 enters the installation inner shell 4 through the ventilation holes 41, it is less likely to condense because the temperature difference from the inside of the installation inner shell 4 is small. The water droplets generated by the condensation phenomenon inside the temperature neutralization cavity 11 will reach the bottom of the temperature neutralization cavity 11 through the guiding of the diversion inclined block 3 and be discharged from the drain port 13. When it is summer with a relatively high outside temperature, the staff can slide the installation inner shell 4 downward inside the diversion inclined block 3 so that the position of the ventilation holes 41 is lower than that of the exhaust holes 12. Due to the principle that hot air moves upward, the hot air is more likely to be discharged from the exhaust holes 12 at a higher height after entering the temperature neutralization cavity 11 from the ventilation holes 41. And when it is winter with a relatively low outside temperature, the staff can slide the installation inner shell 4 upward inside the diversion inclined block 3 so that the height of the ventilation holes 41 is higher than that of the exhaust holes 12. Due to the principle that cold air moves downward, when the outside cold air enters the temperature neutralization cavity 11 from the exhaust holes 12, it is less likely to enter the installation inner shell 4 from the ventilation holes 41 at a higher height, thereby avoiding heat exchange when the cold air reaches the inside of the installation inner shell 4. After the staff slides the installation inner shell 4 to an appropriate height, the installation inner shell 4 can be fixed and limited by inserting the engaging block 43 into the extension block 42 and the protective housing 1.

Claims

1. A PLC automation control cabinet, comprising a protective housing (1) and a bearing base (2), characterized in that: The protective shell (1) is provided with a temperature neutralization chamber (11) inside, and exhaust holes (12) are provided on both sides of the protective shell (1). The supporting base (2) is located below the protective shell (1). The inner wall of the bottom end of the protective shell (1) is fixedly connected with a guide bevel (3), and the guide bevel (3) is slidably connected with an installation inner shell (4) inside. The installation inner shell (4) is provided with air holes (41) on both sides. The installation inner shell (4) is fixedly connected with an extension block (42) on both sides, and a snap-fit ​​block (43) is slidably connected inside the extension block (42), and the snap-fit ​​block (43) is snapped with the protective shell (1).

2. A PLC automation control cabinet according to claim 1, characterized in that: A drain port (13) is provided on the outside of the protective shell (1), the drain port (13) is connected to the temperature neutralization chamber (11) and is located at the bottom of the temperature neutralization chamber (11), and a blocking door (14) is rotatably connected to one side of the protective shell (1).

3. A PLC automation control cabinet according to claim 1, characterized in that: A plurality of mounting grooves (21) are provided inside the bearing base (2), and a connecting block (22) is fixedly connected between the bearing base (2) and the protective shell (1).

4. A PLC automation control cabinet according to claim 1, characterized in that: The guide bevel block (3) is provided with a clearance groove (31) inside, and the mounting inner shell (4) slides inside the clearance groove (31).

5. A PLC automation control cabinet according to claim 1, characterized in that: The extension block (42) is provided with an alignment groove (44) inside, the engaging block (43) passes through the extension block (42) through the alignment groove (44), and the inner wall of the protective shell (1) is provided with two limiting grooves (15), and the position of the limiting groove (15) corresponds to the alignment groove (44).

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