A heat dissipation system based on industrial control cabinet

Abstract

The utility model relates to the technical field of industrial equipment manufacturing, and specifically to a heat dissipation system based on an industrial control cabinet, comprising a main control module, and a power supply module, a temperature acquisition module, a communication module and an optical coupling module connected to the main control module, wherein the power supply module is respectively connected to the temperature acquisition module and a heat dissipation component, wherein the heat dissipation component is installed on the industrial control cabinet, the temperature acquisition module is installed in the industrial control cabinet, the optical coupling module is used to isolate a speed feedback signal sent by the heat dissipation component and forward it to the main control module, the heat dissipation component is connected to the main control module for communication, the main control module is connected to a host computer via the communication module, and the temperature data of the cabinet and the speed information of the heat dissipation component are fed back to the host computer, so that a user can remotely adjust the speed of the heat dissipation component, thereby improving the safety of daily operation of the cabinet and the flexibility of heat dissipation system control.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial equipment manufacturing, in particular to a heat dissipation system based on an industrial control cabinet. Background Art

[0002] Traditional factory electrical equipment mostly uses industrial computers and PLC controllers to cooperate with each other to control the status of the equipment in operation and collect and adjust parameters. Among them, some equipment works continuously for a long time, and the heat generated by the industrial computer is large. If the heat cannot be discharged in time, it will cause the risk of abnormal operation or even burning of the chip. Heat dissipation is the first problem that needs to be solved. Using fans to dissipate heat from the industrial computer is currently a common heat dissipation method. However, most integrated fans on the market are mainly based on speed monitoring and temperature speed regulation, and do not include remote feedback of speed, fan operation status, and remote control of fan operation functions. In the prior art, the ambient temperature is mainly analyzed by the change of thermistor resistance with temperature, which triggers a buzzer alarm; the control circuit outputs a PWM wave through the resistance feedback of the thermistor to adjust the fan speed, so that the fan can adjust its own temperature in real time according to the ambient temperature. However, the buzzer alarm range is limited and cannot be viewed remotely. There is no historical alarm record after the alarm stops, and the fan's historical operation status cannot be viewed, and the fan cannot be remotely controlled to adjust the speed and set the operation status.

[0003] Prior art CN202120363267.2 discloses a fan speed adjustment system for a PET detector, including an optical coupling device, connected to a microcontroller unit and an air outlet device, receiving a PWM signal, and forwarding the duty cycle of the PWM signal to the air outlet device, and the air outlet device generates an air flow at a desired speed based on the duty cycle. Although remote control of the air outlet device is achieved, the air outlet device is limited to receiving instructions from a computer device and cannot feed back its own operating data to the computer device, resulting in the staff not being able to adjust the speed in a timely manner, which affects the safety of the equipment that needs heat dissipation. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art that the fan speed cannot be viewed remotely, the fan's historical operating conditions cannot be viewed, and the fan cannot be remotely controlled to adjust the speed and set the operating conditions, and to provide a heat dissipation system based on an industrial control cabinet.

[0005] The utility model provides a heat dissipation system based on an industrial control cabinet, comprising a main control module, and a power supply module, a temperature acquisition module, a communication module and an optical coupling module connected to the main control module, wherein the power supply module is respectively connected to the temperature acquisition module and the heat dissipation component, wherein the heat dissipation component is installed on the industrial control cabinet, and the temperature acquisition module is installed in the industrial control cabinet, and the optical coupling module is used to isolate the speed feedback signal sent by the heat dissipation component and forward it to the main control module, the heat dissipation component is communicatively connected with the main control module, and the main control module is connected to a host computer via the communication module, feeds back the temperature data of the cabinet and the speed information of the heat dissipation component to the host computer, and simultaneously receives the speed control instruction of the host computer, generates a PWM wave to control the heat dissipation component, facilitates the user to remotely adjust the speed of the heat dissipation component, and simultaneously receives the real-time speed information of the heat dissipation component in time.

[0006] Preferably, the power supply module includes a first step-down module and a second step-down module, which step down the 220V AC power input by the dual power supply and then supply power to the connected components.

[0007] Preferably, the first step-down module is connected to the power supply and the second step-down module respectively, performs a first step-down process on the 220V AC power, and outputs 12V DC power.

[0008] Preferably, the second step-down module is connected to the first step-down module and the main control module respectively, performs a second step-down process on the 12V DC power, and outputs 3.3V DC power.

[0009] Preferably, the first step-down module is connected to the heat dissipation component to transmit 12V direct current to the heat dissipation component to power the heat dissipation component.

[0010] Preferably, the second voltage reduction module is connected to the temperature acquisition module to transmit 3.3V direct current to the temperature acquisition module to power the temperature acquisition module.

[0011] Preferably, the heat dissipation component includes multiple fans, and the fans send speed feedback signals collected during operation to an optocoupler module. The optocoupler module isolates the speed feedback signals to avoid interference from other signals, and then feeds back to the main control module.

[0012] Preferably, the temperature acquisition module includes a temperature sensor arranged in the cabinet, the temperature sensor acquires resistance change information of the thermistor in the cabinet, and feeds back the resistance change information to the main control module, and the main control module calculates the temperature information inside the cabinet based on the resistance change information.

[0013] Preferably, the main control module is also connected to an alarm module. The main control module makes a determination based on the received temperature information inside the cabinet. If the real-time temperature value in the temperature information is greater than the temperature alarm threshold, the main control module generates an alarm message and sends it to the alarm module.

[0014] Preferably, the alarm module comprises an alarm indicator light and a display screen, the alarm indicator light flashes according to the alarm information to prompt the operator, and the display screen feeds back the dry contact information of the system.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model provides a main control module connected to the host computer via a communication module, and the temperature information inside the cabinet and the speed information of the fan are fed back to the host computer through the communication module, so that the operator can remotely view the temperature inside the cabinet and the operation of the heat dissipation component, which improves the timeliness of the feedback of the temperature change inside the cabinet. At the same time, the remote alarm feedback reduces the manual viewing link and improves the convenience of cabinet monitoring;

[0017] 2. The utility model provides a heat dissipation component connected to an optical coupling module and a main control module, and sends speed information to the main control module through the optical coupling module. At the same time, the heat dissipation component receives a control instruction in the form of a PWM wave sent by the main control module, and adjusts the speed. It can realize automatic speed regulation. When the temperature inside the cabinet is high, the speed is increased in time to dissipate heat, thereby improving the safety of daily operation of the cabinet and the flexibility of heat dissipation system control. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Markings in the figure:

[0020] 1-main control module, 2-power supply, 3-first step-down module, 4-second step-down module, 5-temperature acquisition module, 6-alarm module, 7-heat dissipation component, 8-optical coupling module, 9-communication module, 10-host computer. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0022] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / equipment / device of the utility model is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present utility model.

[0023] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.

[0024] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0025] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0026] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0027] Example 1

[0028] like Figure 1 As shown, a heat dissipation system based on an industrial control cabinet includes a main control module 1, and a power supply module, a temperature acquisition module 5, a communication module 9 and an optical coupling module 8 connected to the main control module 1, the power supply module is respectively connected to the temperature acquisition module 5 and the heat dissipation component 7, wherein the heat dissipation component 7 is installed on the industrial control cabinet, the temperature acquisition module 5 is installed in the industrial control cabinet, the optical coupling module 8 is used to isolate the speed feedback signal sent by the heat dissipation component 7 and forward it to the main control module 1, the heat dissipation component 7 is communicatively connected to the main control module 1, and the main control module 1 is connected to the host computer 10 via the communication module 9.

[0029] The power supply module is connected to a 220V power supply and supplies power to the system through dual power input.

[0030] In one or several implementations, the model of the main control module 1 is specifically STM32F103RE.

[0031] In one or several embodiments, the power supply module may include a first step-down module 3 and a second step-down module 4 to step down the 220V AC power input from the dual power sources and then supply power to the connected components.

[0032] The first step-down module 3 can be connected to the power supply and the second step-down module 4 respectively, perform the first step-down process on the 220V AC power, and output 12V DC power.

[0033] In an optional implementation, the first step-down module 3 is connected to the heat dissipation component 7 to transmit 12V direct current to the heat dissipation component 7 to power the heat dissipation component 7 .

[0034] The second step-down module 4 can be connected to the first step-down module 3 and the main control module 1 respectively, and perform a second step-down process on the 12V DC power to output 3.3V DC power.

[0035] In an optional implementation, the second step-down module 4 is connected to the temperature acquisition module 5 to deliver 3.3V DC power to the temperature acquisition module 5 to power the temperature acquisition module 5. The model of the temperature acquisition module 5 is specifically STM32AD sampling.

[0036] In one or more embodiments, the heat dissipation assembly 7 includes a plurality of fans, and the fans send speed feedback signals collected during operation to the optical coupling module 8, and the optical coupling module 8 isolates the speed feedback signals to avoid interference from other signals, and then feeds back to the main control module 1. In this embodiment, the number of fans is 4, and the air outlets are oriented in the same direction.

[0037] In an optional implementation, the speed feedback signal collected by the fan includes high-level and low-level data. A timer program is provided in the main control module 1. The high and low-level cycles of the fan are calculated by the timer program. The inverse of the cycle is the speed of the fan. The model of the wiring terminal of the connecting board of the main control module 1 is specifically ZX-XH2.54-10PZZ, and the model of the corresponding fan wiring terminal is specifically ZX-XH2.54-4PZZ.

[0038] In one or several embodiments, the temperature acquisition module 5 includes a temperature sensor arranged in the cabinet, which acquires resistance change information of the thermistor in the cabinet and feeds back the resistance change information to the main control module 1. The main control module 1 calculates the temperature information inside the cabinet based on the resistance change information.

[0039] In one or several embodiments, the main control module 1 is also connected to an alarm module 6. The main control module 1 makes a judgment based on the received temperature information inside the cabinet. If the real-time temperature value in the temperature information is greater than the temperature alarm threshold, the main control module 1 generates an alarm message and sends it to the alarm module 6.

[0040] In an optional implementation, the alarm module 6 includes an alarm indicator light and a display screen. The alarm indicator light flashes according to the alarm information to prompt the operator, and the display screen feeds back the dry contact information of the system.

[0041] In an optional implementation, the communication module 9 uses an RS485 standard interface for data transmission.

[0042] During specific implementation, the temperature sensor of the temperature acquisition module 5 collects the resistance change information of the thermistor in the cabinet and feeds it back to the main control module 1. The main control module 1 calculates the temperature information inside the cabinet based on the resistance change information. If the real-time temperature value in the temperature information is greater than the temperature alarm threshold, an alarm message is generated and sent to the alarm module 6 and the host computer 10. The alarm module 6 includes an alarm indicator light and a display screen. The alarm indicator light flashes according to the alarm information to prompt the operator. The display screen feedbacks the dry contact information of the system. The host computer 10 feeds back the alarm information to the operator. The main control module 1 simultaneously sends a control instruction in the form of a PWM wave to the heat dissipation component 7 to increase the speed of the fan to improve the heat dissipation capacity; when the real-time temperature value in the temperature information is greater than the temperature alarm threshold, the main control module 1 generates a cancel alarm instruction and sends it to the alarm module 6 and the host computer 10. The alarm module 6 cancels the flashing of the alarm indicator light. The main control module 1 simultaneously sends a control instruction in the form of a PWM wave to the heat dissipation component 7 to reduce the speed of the fan for daily heat dissipation.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat dissipation system based on an industrial control cabinet, characterized in that: The invention comprises a main control module (1), and a power supply module, a temperature acquisition module (5), a communication module (9) and an optical coupling module (8) connected to the main control module (1); the power supply module is connected to the temperature acquisition module (5) and the heat dissipation component (7) respectively; the heat dissipation component (7) is installed on an industrial control cabinet; the temperature acquisition module (5) is installed in the industrial control cabinet; the optical coupling module (8) is used to isolate the speed feedback signal sent by the heat dissipation component (7) and forward it to the main control module (1); the heat dissipation component (7) is connected to the main control module (1) in communication; and the main control module (1) is connected to a host computer (10) via the communication module (9).

2. A heat dissipation system based on an industrial control cabinet according to claim 1, characterized in that: The power supply module comprises a first voltage reduction module (3) and a second voltage reduction module (4).

3. A heat dissipation system based on an industrial control cabinet according to claim 2, characterized in that: The first voltage reduction module (3) is connected to the power source (2) and the second voltage reduction module (4) respectively.

4. The heat dissipation system based on an industrial control cabinet according to claim 2, characterized in that: The second voltage reduction module (4) is connected to the first voltage reduction module (3) and the main control module (1) respectively.

5. The heat dissipation system based on an industrial control cabinet according to claim 2, characterized in that: The first voltage reduction module (3) is connected to a heat dissipation component (7).

6. The heat dissipation system based on an industrial control cabinet according to claim 2, characterized in that: The second voltage reduction module (4) is connected to the temperature acquisition module (5).

7. The heat dissipation system based on an industrial control cabinet according to claim 1, characterized in that: The heat dissipation component (7) comprises a plurality of fans.

8. The heat dissipation system based on an industrial control cabinet according to claim 1, characterized in that: The temperature acquisition module (5) comprises a temperature sensor arranged in the cabinet.

9. The heat dissipation system based on an industrial control cabinet according to claim 1, characterized in that: The main control module (1) is also connected to an alarm module (6).

10. A heat dissipation system based on an industrial control cabinet according to claim 9, characterized in that: The alarm module (6) comprises an alarm indicator light and a display screen.

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