Heat dissipation structure of PLC

Abstract

The utility model discloses a heat dissipation structure of a PLC, which comprises a shell and a PLC body, the inner wall of the shell is provided with the PLC body, the outer side of the shell is provided with a heat dissipation net, one side of the outer wall of the PLC body is provided with a heat conduction aluminum plate, the outer wall of the heat conduction aluminum plate is provided with a heat dissipation aluminum plate, and the other side of the inner wall of the shell is provided with a heat dissipation assembly. The heat dissipation assembly comprises a rotating rod, a mounting plate, a sliding rail, a heat dissipation fan, a fixing bolt, an adjusting lead screw and a connecting plate. Through cooperation of the heat dissipation assembly and the mounting block, the mounting block is taken down from the mounting hole by dismounting a nut on an adjusting lead screw and pulling a handle, the heat dissipation assembly body is taken out from the mounting hole by pulling the adjusting lead screw, and the heat dissipation fan is taken down from a sliding rail by dismounting a fixing bolt, so that the heat dissipation fan is more convenient to clean and maintain; normal operation and the heat dissipation effect of the fan are ensured, the heat dissipation assembly is driven by the adjusting lead screw to turn over by 180 degrees, the air outlet direction of the heat dissipation fan is aligned with the heat dissipation net, dust on the heat dissipation net is blown off, and the heat dissipation net is cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of PLC, in particular to a heat dissipation structure of PLC. Background Art

[0002] PLC is a computer control system specially used for industrial automation control. PLC solves many problems existing in traditional relay control systems. PLC can perform various complex automation control tasks according to pre-set logical rules and conditions by using programmable logic controllers. PLC can process and control input and output signals, as well as communicate with sensors, actuators and external devices to realize automatic control and data processing of various industrial processes. When using PLC controllers, heat dissipation structures such as fans are required.

[0003] The existing fan heat dissipation structure, after long-term use, the rotation of the fan will cause dust and debris in the air to deposit on the fan blades and heat sinks, which will increase wind resistance and cause the fan to be unable to generate sufficient airflow, resulting in a decrease in the heat dissipation effect. Dust, debris, etc. will accumulate on the external heat dissipation net. The existing heat dissipation net structure is fixed and not easy to clean. The accumulation will cause the heat dissipation net to be blocked, hindering the flow of air. The air cannot smoothly pass through the heat dissipation net to contact the heat sink, and the thermal conductivity will be affected, which will cause the PLC temperature to be too high, affecting its stability and life. Utility Model Content

[0004] The purpose of the utility model is to solve the existing fan heat dissipation structure in the prior art. After long-term use, the rotation of the fan will cause dust and debris in the air to deposit on the fan blades and heat sinks, which will increase wind resistance and cause the fan to be unable to generate sufficient airflow, resulting in a decrease in the heat dissipation effect. Dust, debris, etc. will accumulate on the external heat dissipation net. The existing heat dissipation net structure is fixed and not easy to clean. The accumulation will cause the heat dissipation net to be blocked, hindering the flow of air. The air cannot smoothly pass through the heat dissipation net to contact the heat sink, and the thermal conductivity will be affected, which will cause the PLC temperature to be too high, affecting its stability and life. A heat dissipation structure of a PLC is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A heat dissipation structure of a PLC comprises a shell and a PLC body, wherein the PLC body is arranged on the inner wall of the shell, a heat dissipation net is installed on the outer side of the shell, a heat-conducting aluminum plate is arranged on one side of the outer wall of the PLC body, a heat-dissipating aluminum plate is arranged on the outer wall of the heat-conducting aluminum plate, a heat-dissipating assembly is installed on the other side of the inner wall of the shell, the heat-dissipating assembly comprises a rotating rod, a mounting plate, a slide rail, a heat-dissipating fan, a fixing bolt, an adjusting screw and a connecting plate, a connecting plate is installed on one end of the rotating rod, a slide rail is installed on the top of the connecting plate, a heat-dissipating fan is installed in sliding cooperation with the top of the slide rail, a mounting plate is installed on one side of the slide rail, a fixing bolt is installed in cooperation with the thread on the mounting plate, an adjusting screw is installed on one side of the mounting plate, and a mounting block is embedded in the outer wall of the shell.

[0007] Preferably, the PLC body is vertically arranged at the bottom of the inner wall of the shell, a heat dissipation port is opened on the outer wall of the shell, the size specification of the heat dissipation net matches the size specification of the heat dissipation port, and the heat dissipation net is embedded in the heat dissipation port.

[0008] Preferably, the heat-conducting aluminum plate is in the shape of an elongated strip, and the PLC body is fixedly connected to the heat-dissipating aluminum plate via the heat-conducting aluminum plate, and the size of the heat-dissipating aluminum plate matches the size of the back side of the PLC body.

[0009] Preferably, a telescopic rod is provided at the top of the rotating rod, the bottom end of the rotating rod is rotatably connected to one side of the inner wall of the shell, the telescopic rod at the top of the rotating rod is installed on one side of the connecting plate, the number of slide rails is two, and one side of the two slide rails is respectively arranged at the upper and lower ends of the connecting plate.

[0010] Preferably, the cooling fan is slidably mounted on the slide rail, and the other sides of the two slide rails are respectively mounted on the mounting plate by fixing bolt threads, the adjusting screw is vertically arranged on one side of the mounting plate, and a nut is arranged on the side of the adjusting screw close to the outer wall of the shell.

[0011] Preferably, a "cross"-shaped mounting hole is opened on one side of the outer wall of the shell, the mounting block is embedded in the mounting hole, a threaded hole is opened at the midpoint of the mounting block, the adjusting screw rod passes through the thread and is installed on the threaded hole, and a handle is set at the lower end of the outer wall of the mounting block.

[0012] The utility model has the following beneficial effects:

[0013] The utility model cooperates with the heat dissipation component and the mounting block. The nut on the adjusting screw rod is removed, and then the handle is pulled to remove the mounting block from the mounting hole. The adjusting screw rod is pulled to take the heat dissipation component body out of the mounting hole, and the fixing bolt is removed to remove the heat dissipation fan from the slide rail, thereby making the cleaning and maintenance of the heat dissipation fan more convenient and ensuring the normal operation and heat dissipation effect of the fan. The angle of the fan is adjusted according to actual conditions, and the flow path of the heat dissipation airflow is optimized by rotating to improve the heat dissipation effect. The heat dissipation component is driven to flip 180 degrees by the adjusting screw rod, so that the air outlet direction of the heat dissipation fan is aligned with the heat dissipation net, thereby blowing off the dust on the heat dissipation net, and the heat dissipation net is conveniently cleaned, the air flow is increased, the heat dissipation effect is improved, and the PLC temperature is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is one of the overall structural schematic diagrams of a PLC heat dissipation structure proposed by the utility model;

[0015] Figure 2 A schematic diagram of the heat dissipation component structure of a PLC heat dissipation structure proposed by the utility model;

[0016] Figure 3 This is the second overall structural diagram of a PLC heat dissipation structure proposed by the utility model;

[0017] Figure 4 A schematic diagram of a heat-conducting aluminum plate structure of a PLC heat dissipation structure proposed by the utility model;

[0018] Figure 5 The utility model is a cross-sectional structural schematic diagram of a PLC heat dissipation structure.

[0019] In the figure: 1. Shell; 2. PLC body; 3. Heat dissipation net; 4. Heat-conducting aluminum plate; 5. Heat dissipation aluminum plate; 6. Heat dissipation assembly; 601. Rotating rod; 602. Mounting plate; 603. Slide rail; 604. Cooling fan; 605. Fixing bolt; 606. Adjusting screw rod; 607. Connecting plate; 7. Mounting block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-5A heat dissipation structure of a PLC comprises a shell 1 and a PLC body 2. The inner wall of the shell 1 is provided with the PLC body 2, a heat dissipation net 3 is installed on the outer side of the shell 1, the PLC body 2 is vertically arranged at the bottom of the inner wall of the shell 1, and a heat dissipation port is opened on the outer wall of the shell 1. The size specification of the heat dissipation net 3 matches the size specification of the heat dissipation port. The heat dissipation net 3 is embedded and installed on the heat dissipation port. The heat dissipation port is an opening design for dissipating the heat generated inside the PLC. The heat dissipation net 3 is made of metal and has a mesh structure, which can effectively prevent dust and other impurities from entering the inside of the PLC and provide a ventilation and heat dissipation channel;

[0022] A heat-conducting aluminum plate 4 is arranged on one side of the outer wall of the PLC body 2, and a heat-dissipating aluminum plate 5 is arranged on the outer wall of the heat-conducting aluminum plate 4. The heat-conducting aluminum plate 4 is in the shape of a long strip. The PLC body 2 is fixedly connected to the heat-dissipating aluminum plate 5 through the heat-conducting aluminum plate 4. The size of the heat-dissipating aluminum plate 5 matches the size of the back side of the PLC body 2. The PLC element contacts the heat-conducting aluminum plate 4, and the heat is transferred to the heat-conducting aluminum plate 4. At the same time, the heat transferred to the heat-conducting aluminum plate 4 can be transferred to the heat-dissipating aluminum plate 5 for dissipation. Through the rotation of the fan blades, the heat can be discharged from the heat dissipation net 3. The material of the heat-conducting aluminum plate 4 has good thermal conductivity, and can effectively transfer the heat from the PLC element to the heat-dissipating aluminum plate 5. The heat-dissipating aluminum plate 5 can dissipate heat over a larger area to improve the heat dissipation effect.

[0023] A heat dissipation assembly 6 is installed on the other side of the inner wall of the housing 1. The heat dissipation assembly 6 includes a rotating rod 601, a mounting plate 602, a slide rail 603, a heat dissipation fan 604, a fixing bolt 605, an adjusting screw rod 606 and a connecting plate 607. A connecting plate 607 is installed at one end of the rotating rod 601, a slide rail 603 is installed at the top of the connecting plate 607, a telescopic rod is arranged at the top of the rotating rod 601, the bottom end of the rotating rod 601 is rotatably connected to one side of the inner wall of the housing 1, the telescopic rod at the top of the rotating rod 601 is installed on one side of the connecting plate 607, there are two slide rails 603, one side of the two slide rails 603 is respectively arranged at the upper and lower ends of the connecting plate 607, the length of the telescopic rod is variable, and the rotating rod 601 can rotate in the housing 1;

[0024] The top of the slide rail 603 is slidably mounted with a cooling fan 604, a mounting plate 602 is mounted on one side of the slide rail 603, a fixing bolt 605 is threadedly mounted on the mounting plate 602, an adjusting screw 606 is mounted on one side of the mounting plate 602, the cooling fan 604 is slidably mounted on the slide rail 603, the other sides of the two slide rails 603 are respectively threadedly mounted on the mounting plate 602 by fixing bolts 605, the adjusting screw 606 is vertically arranged on one side of the mounting plate 602, a nut is arranged on the side of the adjusting screw 606 close to the outer wall of the housing 1, the cooling fan 604 rotates, the outside air is sucked into the housing 1, the cooling work is performed, and the cooling net 3 has the effect of intercepting dust;

[0025] The outer wall of the housing 1 is provided with a mounting block 7, and a "cross"-shaped mounting hole is provided on one side of the outer wall of the housing 1. The mounting block 7 is provided on the mounting hole, and a threaded hole is provided at the midpoint of the mounting block 7. The adjusting screw 606 passes through the thread and is installed on the threaded hole. A handle is provided at the lower end of the outer wall of the mounting block 7. The adjusting screw 606 can be inserted into the threaded hole to drive the heat dissipation component 6 to adjust the rotation angle in the threaded hole;

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, when using the device, firstly connect the electrical equipment in the device to an external power supply, and place the device at a designated working position. The utility model cooperates the heat dissipation component 6 and the mounting block 7. By removing the nut on the adjusting screw rod 606, the mounting block 7 is removed from the mounting hole by pulling the handle, and the heat dissipation component 6 body is removed from the mounting hole by pulling the adjusting screw rod 606. The fixing bolt 605 is removed to remove the heat dissipation fan 604 from the slide rail 603, so that the cleaning and maintenance of the heat dissipation fan 604 become more convenient, and the normal operation and heat dissipation effect of the heat dissipation fan 604 are ensured. The angle of the heat dissipation fan 604 is adjusted according to actual conditions. By rotating and adjusting the angle of the heat dissipation fan 604, the flow path of the heat dissipation airflow is optimized, thereby improving the heat dissipation effect. The heat dissipation component 6 is driven to flip 180 degrees by adjusting the screw rod 606, so that the air outlet direction of the heat dissipation fan 604 is aligned with the heat dissipation net 3, thereby blowing off the dust on the heat dissipation net 3, and conveniently cleaning the heat dissipation net 3, increasing air flow, improving the heat dissipation effect, and reducing the PLC temperature.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PLC heat dissipation structure, comprising a housing (1) and a PLC body (2), characterized in that: The inner wall of the housing (1) is provided with a PLC body (2), the outer side of the housing (1) is provided with a heat dissipation net (3), one side of the outer wall of the PLC body (2) is provided with a heat-conducting aluminum plate (4), the outer wall of the heat-conducting aluminum plate (4) is provided with a heat-dissipating aluminum plate (5), and the other side of the inner wall of the housing (1) is provided with a heat-dissipating assembly (6), the heat-dissipating assembly (6) comprising a rotating rod (601), a mounting plate (602), a slide rail (603), a heat-dissipating fan (604), a fixing bolt (605), an adjusting screw rod (606) and a connecting rod (607). A connecting plate (607) is installed at one end of the rotating rod (601), a slide rail (603) is installed on the top of the connecting plate (607), a cooling fan (604) is installed in a sliding manner on the top of the slide rail (603), a mounting plate (602) is installed on one side of the slide rail (603), a fixing bolt (605) is installed on the threaded mounting plate (602), an adjusting screw rod (606) is installed on one side of the mounting plate (602), and a mounting block (7) is embedded in the outer wall of the housing (1).

2. A PLC heat dissipation structure according to claim 1, characterized in that: The PLC body (2) is vertically arranged at the bottom of the inner wall of the shell (1); a heat dissipation port is provided on the outer wall of the shell (1); the size specification of the heat dissipation net (3) matches the size specification of the heat dissipation port; the heat dissipation net (3) is embedded and installed on the heat dissipation port.

3. The heat dissipation structure of a PLC according to claim 1, characterized in that: The heat-conducting aluminum plate (4) is in the shape of an elongated strip, and the PLC body (2) is fixedly connected to the heat-dissipating aluminum plate (5) via the heat-conducting aluminum plate (4), and the size specification of the heat-dissipating aluminum plate (5) matches the size specification of the back side of the PLC body (2).

4. The heat dissipation structure of a PLC according to claim 1, characterized in that: A telescopic rod is arranged at the top of the rotating rod (601); the bottom end of the rotating rod (601) is rotatably connected to one side of the inner wall of the outer shell (1); the telescopic rod at the top of the rotating rod (601) is installed on one side of the connecting plate (607); the number of the slide rails (603) is two, and one side of the two slide rails (603) is respectively arranged at the upper and lower ends of the connecting plate (607).

5. The heat dissipation structure of a PLC according to claim 1, characterized in that: The cooling fan (604) is slidably mounted on the slide rail (603), and the other sides of the two slide rails (603) are respectively threadedly mounted on the mounting plate (602) through fixing bolts (605). The adjusting screw rod (606) is vertically arranged on one side of the mounting plate (602), and a nut is arranged on the side of the adjusting screw rod (606) close to the outer wall of the housing (1).

6. The heat dissipation structure of a PLC according to claim 1, characterized in that: A "cross"-shaped mounting hole is provided on one side of the outer wall of the housing (1), the mounting block (7) is embedded in the mounting hole, a threaded hole is provided at the midpoint of the mounting block (7), the adjusting screw rod (606) penetrates the thread and is mounted on the threaded hole, and a handle is provided at the lower end of the outer wall of the mounting block (7).

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