Corrosion-resistant main control circuit board for air conditioner

Abstract

The utility model relates to the field of circuit boards, and discloses a corrosion-resistant master control circuit board for an air conditioner, which comprises a circuit board body, the outer wall of the circuit board body is provided with a protective shell, the top of the protective shell is provided with a sealing cover, the inner wall of the protective shell is fixedly connected with an air-inlet grille, a cooling fan is arranged in the air-inlet grille, and the inner wall of the cooling fan is fixedly connected with the protective shell. A heat dissipation plate is fixedly connected to the bottom of the circuit board body, heat dissipation fins are fixedly connected to the bottom of the heat dissipation plate, a corrosion-resistant heat insulation layer is arranged at the bottom of the protective shell, an air guide assembly is arranged in the protective shell, and a fixing assembly is arranged in the protective shell. According to the utility model, by arranging the protective shell, the air inlet grille, the heat dissipation fan and other structures, the circuit board is arranged in the protective shell, so that the protection grade is improved, the influence of external corrosive media on the circuit board is isolated or reduced, the heat dissipation and ventilation functions are provided, the heat dissipation efficiency is improved, and the normal operation of an air conditioning system is ensured.

Description

Technical Field

[0001] This utility model relates to the field of circuit boards, and in particular to a corrosion-resistant main control circuit board for air conditioners. Background Technology

[0002] The main control circuit board for air conditioners is one of the core components of an air conditioning system. Also known as the air conditioner controller board or control module, its main functions include controlling the air conditioner's on / off state, adjusting temperature, humidity, fan speed, and operating mode. Through receiving and analyzing signals from various sensors and controlling corresponding actuators, it enables various operations and mode switching for the air conditioner. Furthermore, the main control board also has fault diagnosis and protection functions, allowing it to take appropriate protective measures in a timely manner when system anomalies occur.

[0003] Air conditioner circuit boards may come into contact with various chemicals during use, such as acids and alkalis. These chemicals can corrode the circuit boards, causing metal circuit breakage and component damage. Therefore, the main control circuit board for air conditioners needs to be corrosion-resistant. Corrosion-resistant materials are used on key parts of the circuit board, such as applying a coating to copper areas, or wiping and cleaning local corroded areas with anhydrous alcohol.

[0004] In existing technologies, circuit boards are generally made corrosion resistant by using conformal coatings or regular cleaning. However, the protection level of circuit boards that rely solely on coatings to achieve corrosion resistance is low. Circuit boards are also affected by corrosive gases. The inability to reduce or block corrosive gases around the circuit board will reduce its corrosion resistance, thereby reducing the stability of the air conditioning system. Therefore, a corrosion-resistant main control circuit board for air conditioning is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a corrosion-resistant air conditioning main control circuit board, which aims to improve the problem that the existing corrosion-resistant air conditioning main control circuit board cannot reduce the impact of corrosive gases around the circuit board, resulting in a reduced lifespan of the circuit board and a decrease in the stability of the air conditioning system during normal operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a corrosion-resistant air conditioning main control circuit board, comprising a circuit board body, a protective shell provided on the outer wall of the circuit board body, a sealing cover provided on the top of the protective shell, an air intake grille fixedly connected to the inner wall of the protective shell, a cooling fan provided inside the air intake grille, a heat sink fixedly connected to the bottom of the circuit board body, a heat sink fin fixedly connected to the bottom of the heat sink, a corrosion-resistant heat insulation layer provided at the bottom of the protective shell, an air guiding assembly provided inside the protective shell, and a fixing assembly provided inside the protective shell.

[0007] As a further description of the above technical solution:

[0008] The surface of the air intake grille has a groove, and a mounting bracket is provided inside the groove. A filter screen is fixedly connected to the inner wall of the mounting bracket, and the surface of the mounting bracket has a slot.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the protective shell is adapted to the outer wall of the circuit board body.

[0011] As a further description of the above technical solution:

[0012] The air guiding assembly includes an air concentrator, the upper surface of which has an air duct, and the top of which is fixedly connected to an air guide plate.

[0013] As a further description of the above technical solution:

[0014] The fixing component includes a mounting base with an insertion hole on its upper surface, and a positioning rod is fixedly connected to the bottom of the circuit board body.

[0015] As a further description of the above technical solution:

[0016] The bottom of the air-gathering plate is fixedly connected to the upper surface of the corrosion-resistant heat insulation layer, the two ends of the air-gathering plate are set in a raised shape, and the air guide plate is set in an arc shape.

[0017] As a further description of the above technical solution:

[0018] The bottom of the mounting base is fixedly connected to the upper surface of the corrosion-resistant heat insulation layer, and the positioning rod is inserted into the socket.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the mounting bracket is adapted to the inner wall of the groove.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by combining a protective shell, an air intake grille, a cooling fan, a heat sink, a heat sink fin, a corrosion-resistant heat insulation layer, an air guide assembly, and a fixing assembly, the circuit board can be placed inside the protective shell to improve the protection level, isolate or reduce the impact of external corrosive media on the circuit board, and at the same time provide heat dissipation and ventilation functions, improve heat dissipation efficiency, reduce the residence time of corrosive gases near the circuit board, improve the service life of the circuit board, and ensure the normal operation of the air conditioning system.

[0023] 2. In this utility model, by providing grooves, mounting brackets, filters and slots, it is possible to ensure that dust and impurities are blocked from entering during ventilation and heat dissipation, thus avoiding dust from affecting the circuit board. Attached Figure Description

[0024] Figure 1 This is a top view schematic diagram of the main structure of a corrosion-resistant air conditioning main control circuit board proposed in this utility model;

[0025] Figure 2 This is a top view of the structure separating the sealing cover of the main control circuit board for a corrosion-resistant air conditioner according to the present invention.

[0026] Figure 3 This utility model proposes a corrosion-resistant main control circuit board for air conditioning. Figure 2 Enlarged view of region A in the middle;

[0027] Figure 4 This is a side view of the structure separating the sealing cover of the main control circuit board for a corrosion-resistant air conditioner according to the present invention.

[0028] Figure 5 This utility model proposes a corrosion-resistant main control circuit board for air conditioning. Figure 4 Enlarged schematic diagram of region B in the middle.

[0029] Legend:

[0030] 1. Circuit board body; 2. Protective shell; 3. Sealing cover; 4. Air intake grille; 5. Cooling fan; 6. Heat sink; 7. Heat sink fins; 8. Corrosion-resistant heat insulation layer; 9. Air concentrator; 10. Air duct; 11. Air guide plate; 12. Mounting base; 13. Socket; 14. Positioning rod; 15. Groove; 16. Mounting bracket; 18. Filter screen; 19. Slot. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3The present invention provides an embodiment of a corrosion-resistant air conditioning main control circuit board, comprising a circuit board body 1, a protective shell 2 on the outer wall of the circuit board body 1, a sealing cover 3 on the top of the protective shell 2, an air intake grille 4 fixedly connected to the inner wall of the protective shell 2, a cooling fan 5 disposed inside the air intake grille 4, a heat sink 6 fixedly connected to the bottom of the circuit board body 1, a heat sink 7 fixedly connected to the bottom of the heat sink 6, a corrosion-resistant heat insulation layer 8 disposed at the bottom of the protective shell 2, the corrosion-resistant heat insulation layer 8 being able to reduce the impact of corrosive gases and heat on the circuit board body 1 and its surface electronic control components, an air guide assembly disposed inside the protective shell 2, and a fixing assembly disposed inside the protective shell 2.

[0033] Reference Figures 3-5 The outer wall of the protective shell 2 is adapted to the outer wall of the circuit board body 1. The air guiding assembly includes an air concentrator 9, the two ends of which are raised. An air duct 10 is opened on the upper surface of the air concentrator 9. An air guide plate 11 is fixedly connected to the top of the air concentrator 9. The air guide plate 11 is arc-shaped. The fixing assembly includes a mounting base 12. The bottom of the mounting base 12 is fixedly connected to the upper surface of the corrosion-resistant heat insulation layer 8. An insertion hole 13 is opened on the upper surface of the mounting base 12. A positioning rod 14 is fixedly connected to the bottom of the circuit board body 1. The positioning rod 14 is inserted into the insertion hole 13. The positioning rod 14 is inserted into the insertion hole 13 to fix the circuit board body 1 inside the protective shell 2 and to provide ventilation space at the bottom of the protective shell 2. The bottom of the air concentrator 9 is fixedly connected to the upper surface of the corrosion-resistant heat insulation layer 8.

[0034] Reference Figure 3 The surface of the air intake grille 4 has a groove 15, and a mounting bracket 16 is provided inside the groove 15. The outer wall of the mounting bracket 16 is adapted to the inner wall of the groove 15. A filter screen 18 is fixedly connected to the inner wall of the mounting bracket 16. The filter screen 18 can block dust from entering the interior of the protective shell 2 and prevent solid particulate pollutants from accumulating. The surface of the mounting bracket 16 has a slot 19, which makes it easy for the hand to apply force to the mounting bracket 16 to make it detach from or insert into the groove 15.

[0035] Working principle: Connect the cooling fan 5 to the power supply. The cooling fan 5 can connect the wires to the circuit board body 1 or the external power supply. Push the circuit board body 1 down along the inner wall of the protective shell 2 until the positioning rod 14 is fully embedded in the socket 13. At this time, the mounting base 12 supports the circuit board body 1. Close the sealing cover 3 and start the cooling fan 5. The air is filtered by the filter screen 18 and blown to the surface of the air gathering plate 9. The air source is gathered through the air duct 10 to carry away the heat in the center of the circuit board body 1. The air will be guided by the air guide plate 11 to both sides of the circuit board body 1. With the help of the heat sink 6 and heat sink 7, the heat dissipation effect of the circuit board body 1 is guaranteed, while the protective shell 2 is always in a ventilated state. This reduces the impact of external corrosive media on the circuit board body 1, improves the heat dissipation efficiency, and reduces the residence time of corrosive gases near the circuit board body 1. This improves the corrosion resistance of the main control circuit board for air conditioning, extends its service life, and ensures the stable operation of the air conditioning system.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A corrosion-resistant air conditioning main control circuit board, comprising a circuit board body (1), characterized in that: The outer wall of the circuit board body (1) is provided with a protective shell (2), the top of the protective shell (2) is provided with a sealing cover (3), the inner wall of the protective shell (2) is fixedly connected with an air intake grille (4), the air intake grille (4) is provided with a cooling fan (5), the bottom of the circuit board body (1) is fixedly connected with a heat sink (6), the bottom of the heat sink (6) is fixedly connected with a heat sink fin (7), the bottom of the protective shell (2) is provided with a corrosion-resistant heat insulation layer (8), the inside of the protective shell (2) is provided with an air guide assembly, and the inside of the protective shell (2) is provided with a fixing assembly.

2. The corrosion-resistant air conditioning main control circuit board according to claim 1, characterized in that: The surface of the air intake grille (4) is provided with a groove (15), and a mounting bracket (16) is provided inside the groove (15). A filter screen (18) is fixedly connected to the inner wall of the mounting bracket (16), and a slot (19) is provided on the surface of the mounting bracket (16).

3. The corrosion-resistant air conditioning main control circuit board according to claim 1, characterized in that: The outer wall of the protective shell (2) is adapted to the outer wall of the circuit board body (1).

4. The corrosion-resistant air conditioning main control circuit board according to claim 1, characterized in that: The air guiding assembly includes an air gathering plate (9), an air duct (10) is provided on the upper surface of the air gathering plate (9), and an air guiding plate (11) is fixedly connected to the top of the air gathering plate (9).

5. The corrosion-resistant air conditioning main control circuit board according to claim 1, characterized in that: The fixing component includes a mounting base (12), the upper surface of which is provided with an insertion hole (13), and a positioning rod (14) is fixedly connected to the bottom of the circuit board body (1).

6. The corrosion-resistant air conditioning main control circuit board according to claim 4, characterized in that: The bottom of the wind-gathering plate (9) is fixedly connected to the upper surface of the corrosion-resistant heat insulation layer (8), the two ends of the wind-gathering plate (9) are set in a raised shape, and the air guide plate (11) is set in an arc shape.

7. The corrosion-resistant air conditioning main control circuit board according to claim 5, characterized in that: The bottom of the mounting base (12) is fixedly connected to the upper surface of the corrosion-resistant heat insulation layer (8), and the positioning rod (14) is inserted into the socket (13).

8. The corrosion-resistant air conditioning main control circuit board according to claim 2, characterized in that: The outer wall of the mounting bracket (16) is adapted to the inner wall of the groove (15).

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