Ventilation and heat dissipation structure of PLC control cabinet

Abstract

The utility model discloses a PLC control cabinet ventilation heat dissipation structure, relates to the cabinet ventilation heat dissipation field, and comprises a cabinet body, the opening end of the cabinet body is rotatably provided with a cabinet door, the inner wall of the cabinet door is vertically and fixedly provided with a plurality of mounting racks, the outer sides of the tail ends of the plurality of mounting racks are fixedly connected through a connecting rack, and the connecting rack is fixedly connected with the cabinet door. A plurality of mounting frames are fixedly mounted on the base, heat dissipation hollow copper pipes are connected between the upper and lower adjacent mounting frames through sliding mechanisms, limiting mechanisms for locking the heat dissipation hollow copper pipes are fixedly mounted at the back ends of the mounting frames, the input ends of the heat dissipation hollow copper pipes are connected with air inlet mechanisms, and the output ends of the heat dissipation hollow copper pipes are connected with air outlet pipes. By arranging the hollow heat dissipation copper pipe, the inner side face of the transverse pipe part of the heat dissipation hollow copper pipe is aligned with the inner side face of the transverse plate part of the installation frame, air cooling heat exchange type heat dissipation can be achieved in cooperation with the air suction mechanism, and by arranging the sliding mechanism and the limiting mechanism, the heat dissipation hollow copper pipe can be conveniently installed and replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the ventilation and heat dissipation field of cabinet body, and specifically relates to a PLC control cabinet ventilation and heat dissipation structure. BACKGROUND

[0002] The PLC control cabinet refers to a programmable control cabinet, and the control cabinet refers to a complete control cabinet, can realize the operation of the electric element installed in the PLC control cabinet, heat is generated when the electric element operates, with heat accumulation, the electric element is affected, therefore, heat dissipation is needed.

[0003] The heat dissipation mode in the prior art includes liquid cooling, air cooling and natural cooling, wherein the air cooling mode is to use a cooling fan to forcibly flow air to accelerate heat dissipation, so as to realize the heat dissipation function, the cost of this mode is relatively low, the heat dissipation mode is high, and therefore the application range is wide.

[0004] However, the air cooling mode has the problem that dust and moisture in the external air are blown into the device during the heat dissipation process, which affects the service life of the electric equipment. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of PLC control cabinet ventilation and heat dissipation structures, to solve the problem proposed in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of PLC control cabinet ventilation and heat dissipation structure, including cabinet body, the opening end of the cabinet body is rotatably installed with cabinet door, the inner wall of the cabinet door is vertically fixedly installed with multiple mounting racks, the outer side of the tail end of multiple mounting racks is fixedly connected by connecting frame, and the mounting rack between upper and lower adjacent is connected with heat dissipation hollow copper pipe by sliding mechanism, the back end of the mounting rack is fixedly installed with the limiting mechanism for locking the heat dissipation hollow copper pipe, the input end of the heat dissipation hollow copper pipe is connected with air inlet mechanism, and the output end of the heat dissipation hollow copper pipe is connected with air outlet pipe.

[0007] As a further scheme of the utility model: the air inlet mechanism includes air inlet pipe, the inner cavity of the air inlet pipe and the air outlet pipe is communicated with the inner cavity of the heat dissipation hollow copper pipe, the input end of the air inlet pipe is installed with the guide sleeve of funnel structure, the inner wall of the guide sleeve is installed with cooling fan, and the wide mouth end of the guide sleeve is installed with dust screen.

[0008] As a further scheme of the utility model: the sliding mechanism includes the butt joint sliding groove opened on the longitudinal plate part of the mounting rack and the butt joint sliding block fixedly installed on the longitudinal pipe part of the heat dissipation hollow copper pipe, the end of the butt joint sliding groove away from the horizontal plate part of the mounting rack is in open structure, and the end of the butt joint sliding groove close to the horizontal plate part of the mounting rack is in closed structure.

[0009] As a further embodiment of this utility model: the limiting mechanism includes a fixed plate fixedly installed on the inner side of the horizontal plate of the mounting frame, a sliding column slidably connected to the inner wall of the fixed plate, the sliding column being in contact with the inner side of the mounting frame, and an upper limit plate integrally formed on the outer wall of the sliding column, the top of the upper limit plate in the reset state being flush with the top surface of the horizontal plate of the mounting frame.

[0010] As a further embodiment of this utility model: the limiting mechanism further includes a guide post fixedly connected to the bottom end of the upper limit plate, the guide post extending through to the bottom of the fixed plate and slidingly connected to the fixed plate up and down, a spring abutting between the upper limit plate and the fixed plate, the spring being sleeved on the outer periphery of the guide post.

[0011] As a further improvement of this utility model, the limiting mechanism also includes a pressure-bearing inclined surface formed on the top of the sliding column and a lower limiting plate integrally formed on the bottom of the sliding column.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By setting hollow heat dissipation copper pipes, the inner side of the horizontal section of the hollow heat dissipation copper pipe is aligned with the inner side of the horizontal plate of the mounting bracket. With the help of the suction mechanism, air-cooled heat exchange can be achieved. Furthermore, by setting sliding and limiting mechanisms, the installation and replacement of the hollow heat dissipation copper pipes can be facilitated. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the installation of the heat dissipation hollow copper tube of this utility model;

[0017] Figure 4 This is a schematic diagram of the installation of the limiting mechanism of this utility model;

[0018] Figure 5 For the present utility model Figure 4 Enlarged view of a portion of point A in the middle.

[0019] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Guide sleeve; 4. Mounting bracket; 5. Hollow copper heat dissipation pipe; 6. Air outlet pipe; 7. Connecting bracket; 8. Air inlet pipe; 9. Cooling fan; 10. Connecting slider; 11. Connecting groove; 12. Fixing plate; 13. Sliding column; 14. Lower limit plate; 15. Pressure inclined surface; 16. Upper limit plate; 17. Guide column; 18. Spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Please refer to Figures 1-5 In the embodiments of the utility model, a PLC control cabinet ventilation and heat dissipation structure comprises a cabinet body 1, the opening end of the cabinet body 1 is rotatably installed with a cabinet door 2, the inner wall of the cabinet door 2 is vertically fixedly installed with a plurality of mounting racks 4, the outer side of the tail end of the plurality of mounting racks 4 is fixedly connected through a connecting rack 7, and the adjacent mounting racks 4 are connected with heat dissipation hollow copper pipes 5 through sliding mechanisms, the back end of the mounting rack 4 is fixedly installed with a limiting mechanism for locking the heat dissipation hollow copper pipe 5, the input end of the heat dissipation hollow copper pipe 5 is connected with an air inlet mechanism, and the output end of the heat dissipation hollow copper pipe 5 is connected with an air outlet pipe 6.

[0022] In the embodiments, first, the mounting rack 4 is installed on the inner side of the cabinet body 1 during installation, then the heat dissipation hollow copper pipe 5 is connected with the mounting rack 4 through the sliding mechanism, after the heat dissipation hollow copper pipe 5 is installed, the limiting mechanism limits the heat dissipation hollow copper pipe 5 at the installation position, then the air inlet pipe 6 and the air inlet mechanism are respectively welded and fixedly connected with the input end and the output end of the heat dissipation hollow copper pipe 5, and the fixed installation of the heat dissipation hollow copper pipe 5 is completed.

[0023] After each electrical element is installed on the mounting rack 4 and is operated, the air inlet mechanism is started, the air inlet mechanism sucks the external normal temperature air and conveys it to the inside of the heat dissipation hollow copper pipe 5, when the normal temperature space flows in the heat dissipation hollow copper pipe 5, the temperature in the mounting rack 4 is lowered by heat exchange with the heat dissipation hollow copper pipe 5 due to the operation of the electrical element, at this time, the temperature of the normal temperature space in the heat dissipation hollow copper pipe 5 rises, and the temperature in the mounting rack 4 drops, so that the ventilation and heat dissipation effect is realized, and in this way, the dust and moisture in the outside can be effectively prevented from entering the inside of the device.

[0024] Please refer to Figure 1 , Figure 2 and Figure 3 The air inlet mechanism comprises an air inlet pipe 8, the inner cavities of the air inlet pipe 8 and the air outlet pipe 6 are communicated with the inner cavity of the heat dissipation hollow copper pipe 5, the input end of the air inlet pipe 8 is installed with a guide sleeve 3 in a funnel structure, the inner wall of the guide sleeve 3 is installed with a heat dissipation fan 9, and the wide mouth end of the guide sleeve 3 is installed with a dust screen.

[0025] In the embodiment, the heat dissipation fan 9 is started to run to suck in external normal temperature air, the air enters the inner cavity of the heat dissipation hollow copper pipe 5 through the guide sleeve 3 and the air inlet pipe 8, and finally is discharged from the air outlet pipe 6, so that the air circulation purpose is achieved, and in the air flow process, the dust screen with the porous structure can effectively prevent dust from entering the inside of the heat dissipation hollow copper pipe 5.

[0026] Please refer to Figure 3 and Figure 4 , the sliding mechanism comprises a butt joint sliding groove 11 arranged on the longitudinal plate part of the mounting frame 4 and a butt joint sliding block 10 fixedly arranged on the longitudinal pipe part of the heat dissipation hollow copper pipe 5, and the end of the butt joint sliding groove 11 away from the horizontal plate part of the mounting frame 4 is in an open structure, and the end of the butt joint sliding groove 11 close to the horizontal plate part of the mounting frame 4 is in a closed structure.

[0027] In the embodiment, when the heat dissipation hollow copper pipe 5 is installed, the butt joint sliding block 10 on the heat dissipation hollow copper pipe 5 is aligned with the open end of the butt joint sliding groove 11, and then the heat dissipation hollow copper pipe 5 is pushed to be butted with the mounting frame 4.

[0028] Please refer to Figure 4 and Figure 5 , the limiting mechanism comprises a fixed plate 12 fixedly arranged on the inner side of the horizontal plate part of the mounting frame 4, a sliding column 13 slidably connected to the inner wall of the fixed plate 12, the sliding column 13 is attached to the inner side of the mounting frame 4, an upper limiting plate 16 is integrally formed on the outer wall of the sliding column 13, the top of the upper limiting plate 16 in the reset state is flush with the top end surface of the horizontal plate part of the mounting frame 4, the limiting mechanism further comprises a guide column 17 fixedly connected to the bottom end of the upper limiting plate 16, the guide column 17 penetrates to the lower side of the fixed plate 12 and is slidably connected to the fixed plate 12, a spring 18 is abutted between the upper limiting plate 16 and the fixed plate 12, the spring 18 is sleeved on the outer periphery of the guide column 17, the limiting mechanism further comprises a pressure receiving inclined surface 15 arranged on the top of the sliding column 13 and a lower limiting plate 14 integrally formed on the bottom end of the sliding column 13.

[0029] In the embodiment, when the heat dissipation hollow copper pipe 5 is slidably installed, the horizontal pipe part of the heat dissipation hollow copper pipe 5 gradually approaches the sliding column 13 until the pressure receiving inclined surface 15 of the sliding column 13 is contacted, at this time the sliding column 13 is forced to move downward, the sliding column 13 synchronously drives the upper limiting plate 16 and the guide column 17 to synchronously move downward, at this time the spring 18 is compressed, until the inner side surface of the horizontal pipe part of the heat dissipation hollow copper pipe 5 is aligned with the inner side surface of the horizontal plate part of the mounting frame 4, at this time the spring 18 is reset, the reset spring 18 pushes the upper limiting plate 16 to move upward, the upward moving upper limiting plate 16 drives the sliding column 13 and the lower limiting plate 14 at the bottom end of the sliding column 13 to synchronously reset upward, until the top end of the lower limiting plate 14 is contacted with the bottom end of the fixed plate 12, at this time the top end of the upper limiting plate 16 is flush with the top end of the mounting frame 4, and the limiting of the heat dissipation hollow copper pipe 5 is completed.

[0030] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A PLC control cabinet ventilation and heat dissipation structure, comprising a cabinet body (1), a cabinet door (2) is rotatably installed at the opening end of the cabinet body (1), characterized in that, The inner wall of the cabinet door (2) is vertically fixedly provided with a plurality of mounting racks (4), the outer ends of the mounting racks (4) are fixedly connected through connecting racks (7), and the mounting racks (4) adjacent in upper and lower directions are connected with heat dissipation hollow copper pipes (5) through sliding mechanisms.

2. The ventilation structure of the PLC control cabinet according to claim 1, characterized in that, The air inlet mechanism comprises an air inlet pipe (8), the inner cavities of the air inlet pipe (8) and the air outlet pipe (6) are communicated with the inner cavity of the heat dissipation hollow copper pipe (5), and the input end of the air inlet pipe (8) is provided with a funnel-shaped guide sleeve (3).

3. The ventilation structure of the PLC control cabinet according to claim 1, characterized in that, The sliding mechanism comprises a butt joint sliding groove (11) formed in the longitudinal plate portion of the mounting rack (4) and a butt joint sliding block (10) fixedly installed on the longitudinal pipe portion of the heat dissipation hollow copper pipe (5), one end of the butt joint sliding groove (11) away from the horizontal plate portion of the mounting rack (4) is in an open structure, and one end of the butt joint sliding groove (11) close to the horizontal plate portion of the mounting rack (4) is in a closed structure.

4. The ventilation structure of the PLC control cabinet according to claim 3, characterized in that, The limiting mechanism comprises a fixed plate (12) fixedly installed on the inner side of the horizontal plate portion of the mounting rack (4), the inner wall of the fixed plate (12) is slidably connected with a sliding column (13) in an up-down direction, the sliding column (13) is in close contact with the inner side of the mounting rack (4), and the outer wall of the sliding column (13) is integrally formed with an upper limiting plate (16).

5. The ventilation structure of the PLC control cabinet according to claim 4, characterized in that, The limiting mechanism further comprises a guide column (17) fixedly connected to the bottom end of the upper limiting plate (16), the guide column (17) penetrates through the fixed plate (12) to the lower side of the fixed plate (12) and is slidably connected with the fixed plate (12) in an up-down direction, a spring (18) is abutted between the upper limiting plate (16) and the fixed plate (12), and the spring (18) is sleeved on the outer periphery of the guide column (17).

6. The ventilation structure of the PLC control cabinet according to claim 5, characterized in that, The limiting mechanism further comprises a pressure receiving inclined surface (15) formed in the top of the sliding column (13) and a lower limiting plate (14) integrally formed at the bottom end of the sliding column (13).

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