CN219288039U

CN219288039U - PLC controller with heat dissipation function

Info

Publication number: CN219288039U
Application number: CN202320062538.XU
Authority: CN
Inventors: 马浩
Original assignee: Nanjing Rievtech Electronic Co ltd
Current assignee: Nanjing Rievtech Electronic Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-06-30
Anticipated expiration: 2033-01-09

Abstract

The application discloses PLC controller with heat dissipation function, it belongs to the programmable logic controller field, includes: a housing formed with a receiving cavity for placing an electronic component in a PLC controller having a heat dissipation function; the shell is provided with a first air channel, an air inlet and an air outlet, and a heat radiation fan is arranged at the air inlet; the heat dissipation fan drives air to enter the first air channel from the air inlet and is discharged from the first air channel through the air outlet, and the air exchanges heat in the first air channel; the beneficial effects of this application lie in providing a radiating effect good, the stable PLC controller of operation.

Description

PLC controller with heat dissipation function

Technical Field

The application relates to the field of programmable logic controllers, in particular to a PLC controller with a heat dissipation function.

Background

A programmable logic controller (PLC controller), a digital electronic device with a microprocessor, is used for automatically controlling the digital logic controller, and can load control instructions into a memory at any time for storage and execution. The programmable logic controller is formed by modularizing and combining an internal CPU, an instruction and data memory, an input/output unit, a power module, a digital analog unit and the like, and is widely applied to the field of industrial control.

The existing programmable logic controller heats the air in the PLC controller with heat dissipation function by heat generated by the operation of electronic elements in the working process through heat conduction and heat radiation, and the service life of the PLC controller is seriously reduced due to the excessively high temperature. The existing heat dissipation mode generally has a heat dissipation port or a heat dissipation fan outside the shell, but the heat dissipation effect is poor, the fan has noise, meanwhile, the mode causes the programmable logic controller to easily accumulate dust, the PLC controller is more precise, and the service life of the PLC controller is influenced by the dust.

Disclosure of Invention

The content of the present application is intended to introduce concepts in a simplified form that are further described below in the detailed description. The section of this application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

To solve the technical problems mentioned in the background section above, some embodiments of the present application provide a PLC controller with a heat dissipation function, including: a housing formed with a receiving cavity for placing an electronic component in a PLC controller having a heat dissipation function; the shell is provided with a first air channel, an air inlet and an air outlet, and a heat radiation fan is arranged at the air inlet; the heat dissipation fan drives air to enter the first air channel from the air inlet and is discharged from the first air channel through the air outlet, and the air exchanges heat in the first air channel.

The utility model provides a PLC controller with heat dissipation function is through setting up first wind channel and radiator fan in the casing, and the outside air of drive gets into first wind channel to carry out heat exchange with the heat that inside electronic component produced, through the mode of initiative heat transfer, reach the effect that makes inside electronic component cool down. The electronic components inside the shell are not in direct contact with the heat exchange air duct during heat exchange, and the service life of the electronic components in the shell is ensured while the temperature of the shell is reduced so as to increase the running stability of the PLC.

Further, the cross-sectional area of the air inlet along the first air duct direction is gradually reduced.

Further, a heat dissipation plate is arranged between the electronic element and the shell, and the heat dissipation plate and the shell are enclosed to form a first air channel.

Further, a plurality of radiating fins are arranged on the radiating plate and are arranged in a staggered mode and used for surrounding the radiating plate and the shell to form a first air channel.

Further, one end of the radiating fin, which is far away from the radiating plate, is abutted with the shell.

Further, the heat radiating fins are arranged obliquely with respect to the heat radiating plate for increasing the heat exchange area with air.

Further, a heat radiation hole is formed in the side, which is abutted against the heat radiation fin, of the shell.

Further, a first opening and a second opening are arranged on the air duct, and a second air duct is formed between the first opening and the shell and between the second opening and the shell.

Further, the cross-sectional area of the first opening in the width direction thereof is smaller than the cross-sectional area of the first air duct in the width direction thereof.

Further, a dust screen is arranged on the heat radiation fan.

The beneficial effects of this application lie in: the PLC controller with the heat dissipation function has the advantages of good heat dissipation effect and stable operation.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the other features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application.

In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.

In the drawings:

FIG. 1 is an overall schematic diagram according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a part of an embodiment, mainly showing the structure of a heat radiating fin or the like;

FIG. 3 is a schematic structural view of a portion of an embodiment, mainly illustrating the structure of the first air duct and the like;

FIG. 4 is a schematic diagram showing the fit of the heat dissipating fins with the housing in an embodiment;

fig. 5 is a schematic structural view of a portion of an embodiment, mainly illustrating the air intake structure.

Reference numerals:

100. a PLC controller with heat dissipation function; 101. a housing; 101a, an air inlet; 101b, an air outlet; 101c, a second opening; 101d, a first opening; 101e, a receiving cavity; 101f, heat dissipation holes; 102. a heat dissipation plate; 103. a heat radiation fin; 104. a blower; 105. a first air duct; 106. and a second air duct.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 to 5, a PLC controller 100 with a heat dissipation function includes a housing 101, a baffle plate installed in the housing 101, a receiving chamber 101e formed between the housing 101 and the baffle plate for receiving electronic components in the PLC controller 100 with a heat dissipation function, and a first air duct 105 formed, the first air duct 105 and the receiving chamber 101e being partitioned by the baffle plate. The first air duct 105 is provided with an air inlet 101a and an air outlet 101b, a heat radiation fan 104 is installed at the air inlet 101a, and the heat radiation fan 104 is started to drive air to enter the first air duct 105 from the air inlet 101a and be discharged from the first air duct 105 through the air outlet 101 b.

The utility model provides a PLC controller 100 with heat dissipation function is through setting up first wind channel 105 and radiator fan 104 in casing 101, and the outside air of drive gets into first wind channel 105 to carry out heat exchange through the heat conduction effect of baffle and the heat that inside electronic component produced, reach the effect that makes inside electronic component cool down, thereby increase the stability of PLC controller operation, and prolong its electronic component life.

Through the above scheme, the problem that the heat dissipation effect is poor when the PLC controller 100 with the heat dissipation function operates is solved.

In the actual application of the PLC controller having the heat dissipation function, the position of the terminal block of the PLC controller 100 having the heat dissipation function is set to the front of the PLC controller 100 having the heat dissipation function, and the side of the housing 101 disposed opposite to the terminal block is set to the rear of the PLC controller 100 having the heat dissipation function. The cooling and heat dissipation of the interior of the electric oven 100 mainly aims at cooling and heat dissipation of electric components behind and on both sides of the PLC controller 100 having a heat dissipation function.

In a further scheme, the cross-sectional area of the air inlet 101a along the direction of the first air channel 105 is gradually reduced, air driven by the heat dissipation motor enters the first air channel 105 from the air inlet 101a, and because the air enters the small aperture from the large aperture, the air pressure is increased, the flow speed is increased, more heat can be taken away in a short time, the heat exchange efficiency is improved, and the heat dissipation effect is improved.

In some embodiments, the baffle between the first air duct 105 and the accommodating cavity 101e may be a heat dissipation plate 102, preferably made of aluminum alloy plate with good heat dissipation performance, and after the electronic components in the PLC controller 100 with heat dissipation function are operated, the generated heat is contacted with the heat dissipation plate 102, so that the heat is conducted to the heat dissipation plate 102, and the heat dissipation plate 102 exchanges heat with the air driven by the heat dissipation motor, so as to achieve the effect of rapid heat dissipation.

In a further scheme, a plurality of heat dissipation fins 103 are arranged on the heat dissipation plate 102, the length direction of the heat dissipation fins 103 is parallel to the direction of the air inlet 101a entering the first air duct 105, and the plurality of heat dissipation fins 103 are arranged in a staggered manner and are used for surrounding the heat dissipation plate 102 and the shell 101 to form the first air duct 105. The heat dissipation fins 103 are arranged to increase the heat exchange area between the heat dissipation plate 102 and the air, thereby further improving the heat dissipation effect. The heat radiation fins 103 may be formed as a part of the heat radiation plate 102 and may be co-manufactured with the heat radiation plate 102. In other embodiments of the present utility model, the heat dissipation fins 103 may be separately disposed from the heat dissipation plate 102, and the heat dissipation fins 103 may be connected to the heat dissipation plate 102 by welding or a detachable connection.

In a further scheme, one end of the heat dissipation fin 103 away from the heat dissipation plate 102 is abutted with the shell 101, so that air is prevented from being directly discharged to the air outlet 101b through a gap between the heat dissipation fin 103 and the heat dissipation plate 102, and therefore the air cannot penetrate into the first air duct 105 to reduce the heat dissipation effect, namely, the flowing direction of cooling air flow can be effectively guaranteed through the arrangement of the heat dissipation fin 103, the flow speed of the cooling air flow is improved, and the internal heat dissipation of the PLC controller 100 with a heat dissipation function is accelerated.

In a further aspect, the heat dissipation fins 103 are disposed obliquely with respect to the heat dissipation plate 102, so that the heat exchange area between the heat dissipation plate 102 and the air is further increased, and the heat dissipation effect is improved.

In a further scheme, the side, abutting against the radiating fins 103, of the shell 101 is provided with the radiating holes 101f, so that the problem that the local radiating effect is poor due to the fact that hot air is possibly accumulated in the air duct is solved.

In a further aspect, the air duct is provided with a first opening 101d and a second opening 101c, a second air duct 106 is formed between the first opening 101d and the second opening 101c and the housing 101, and the second air duct 106 is communicated with the accommodating cavity 101 e. The air driven by the heat radiation fan 104 and the heat radiation plate 102 are subjected to heat exchange in the first channel 105, so that the temperature in the accommodating cavity 101e is reduced, the influence of dust in the air on the electronic component is avoided, the electronic component cannot be rapidly cooled when the electronic component runs at a high speed, and the electronic component can be rapidly cooled by arranging the second air channel 106 to be communicated with the accommodating cavity 101e, so that the electronic component is in direct contact with the air in the second air channel 106, and the electronic component can be rapidly cooled, and the high-temperature damage of the electronic component is avoided.

In a further scheme, the cross-sectional area of the first opening 101d along the width direction is smaller than that of the first air duct 105 along the width direction, so that the air driven by the heat dissipation fan 104 is more shunted to the first air duct 105, the heat dissipation of the first air duct 105 is mainly performed, and oxidation possibly caused by direct contact of the air and the electronic component is reduced, so that the performance of the electronic component is affected.

In a further aspect, a dust screen (not shown in the drawings) is disposed on the heat dissipation fan 104 to reduce the influence of dust on the performance of electronic components, such as resistance, etc., where the dust screen may be fixed on the heat dissipation fan 104 or may be detachably mounted on the heat dissipation fan 104, such as threaded connection, snap connection, etc., so as to facilitate disassembly and cleaning.

The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the utility model in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the utility model. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A PLC controller with heat dissipation, comprising:

a housing formed with a receiving cavity for placing the electronic components in the PLC controller with the heat dissipation function;

the method is characterized in that:

the shell is provided with a first air duct, an air inlet and an air outlet,

the heat dissipation fan is arranged at the air inlet;

the heat dissipation fan drives air to enter the first air channel from the air inlet and is discharged from the first air channel through the air outlet, and the air exchanges heat in the first air channel.

2. The PLC controller with heat dissipation function of claim 1, wherein: the cross-sectional area of the air inlet along the direction of the first air channel is gradually reduced.

3. The PLC controller with heat dissipation function of claim 2, wherein: and a heat dissipation plate is arranged between the electronic element and the shell, and the heat dissipation plate and the shell are enclosed into the first air duct.

4. The PLC controller with heat dissipation function of claim 3, wherein: the heat dissipation plate is provided with a plurality of heat dissipation fins, and the heat dissipation fins are arranged in a staggered mode and used for surrounding the heat dissipation plate and the shell to form the first air channel.

5. The PLC controller with heat dissipation according to claim 4, wherein: one end of the radiating fin, which is far away from the radiating plate, is abutted with the shell.

6. The PLC controller with heat dissipation according to claim 5, wherein: the radiating fins are obliquely arranged relative to the radiating plate and used for increasing the heat exchange area with air.

7. The PLC controller with heat dissipation function of claim 6, wherein: and a radiating hole is formed in one side of the shell, which is abutted against the radiating fin.

8. The PLC controller with heat dissipation function of claim 1, wherein: the air duct is provided with a first opening and a second opening, and a second air duct is formed between the first opening and the shell as well as between the second opening and the shell.

9. The PLC controller with heat dissipation function of claim 8, wherein: the cross-sectional area of the first opening along the width direction is smaller than the cross-sectional area of the first air duct along the width direction.

10. The PLC controller with heat dissipation function of claim 9, wherein: and a dustproof net is arranged on the heat radiation fan.