A heat dissipation mechanism of a variable frequency cooling and heating machine

Abstract

The utility model discloses a kind of heat dissipation mechanisms of frequency conversion cooling and heating machine, applied in the technical field of frequency conversion cooling and heating machine heat dissipation structure, including cooling and heating machine main body, the inside of the installation slot for frequency conversion control circuit board of cooling and heating machine main body is provided with inner groove, the inside of the inner groove is provided with suction fan blade, the center of the suction fan blade is fixedly sleeved with connecting rod, the inside of the fan installation slot of cooling and heating machine main body is provided with transmission mechanism, the front and back of cooling and heating machine main body are provided with the step groove that is communicated with the frequency conversion control circuit board installation slot;The utility model is provided with inner groove in the inside of the installation slot for frequency conversion control circuit board, inner groove is installed with suction fan blade, under the action of connecting rod and transmission mechanism, cooling and heating machine main body can drive suction fan blade to rotate when working, external air is sucked into the inside of the installation slot for frequency conversion control circuit board to heat dissipation for frequency conversion control circuit board, reach the purpose of energy saving.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat dissipation structure of variable frequency air conditioners and heaters, and specifically relates to a heat dissipation mechanism for variable frequency air conditioners and heaters. Background Technology

[0002] A variable frequency air conditioner / heater is a device that can achieve both cooling and heating functions. It consists of an indoor unit and an outdoor unit. Currently, the variable frequency controller of traditional large variable frequency air conditioners / heaters is usually installed inside the circuit board mounting slot of the outdoor unit. During long-term use, the variable frequency control circuit board and other circuit components will generate heat. The traditional approach is to allow natural heat dissipation or to use a fan for heat dissipation. Natural heat dissipation is ineffective, and although adding a fan has a better heat dissipation effect, it requires an additional cooling fan, resulting in energy consumption and failing to achieve energy-saving effects. Utility Model Content

[0003] The purpose of this utility model is to provide a heat dissipation mechanism for a variable frequency air conditioner / heater, which has the advantages of energy saving and easy disassembly.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a heat dissipation mechanism for a variable frequency heating and cooling machine, comprising a main body of the heating and cooling machine, wherein an inner groove is provided inside the mounting slot for the variable frequency control circuit board of the main body, an exhaust fan blade is provided inside the inner groove, a connecting rod is fixedly sleeved at the center of the exhaust fan blade, a transmission mechanism is provided inside the fan mounting slot of the main body of the heating and cooling machine, stepped grooves communicating with the mounting slot of the variable frequency control circuit board are provided on both the front and back of the main body of the heating and cooling machine, a fixing plate is provided inside the stepped groove, a fixing seat is symmetrically provided at the top and bottom of the fixing plate and fixedly sleeved with the main body of the heating and cooling machine, a limit block is rotatably connected to the surface of the fixing seat, a limit groove is symmetrically provided at the ear of the fixing seat, a limit mechanism is provided inside the limit groove, and a slot is provided on the limit block.

[0005] The above technical solution is as follows: This utility model has an inner groove inside the mounting slot of the frequency converter control circuit board, and an exhaust fan blade is installed inside the inner groove. Under the action of the connecting rod and the transmission mechanism, the exhaust fan blade can be rotated when the main body of the air conditioner is working, drawing outside air into the mounting slot of the frequency converter control circuit board to dissipate heat from the frequency converter control circuit board. There is no need to install a cooling fan, reducing costs and achieving energy saving. The stepped groove is designed with a fixing plate, and a dustproof net is installed on the fixing plate. When it is necessary to remove the dustproof net for cleaning, it is only necessary to rotate the limiting block so that the limiting block does not limit the fixing plate, and the fixing plate can be removed from the stepped groove, achieving the purpose of quick removal of the dustproof net and facilitating the cleaning work.

[0006] The present invention is further configured such that the transmission mechanism includes a first bevel gear fixedly sleeved with the fan shaft inside the fan mounting slot, and one end of the connecting rod extends through the inside of the fan mounting slot and is fixedly sleeved with a second bevel gear meshing with the first bevel gear.

[0007] The above technical solution is adopted as follows: When the main body of the heat and cooler is working, the fan of the main body of the heat and cooler rotates, the fan shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and thus the second bevel gear drives the connecting rod to rotate.

[0008] The present invention is further configured such that the limiting mechanism includes a locking block disposed inside the limiting groove, and a supporting spring is engaged between the locking block and the limiting groove.

[0009] Using the above technical solution: when the locking block is locked inside the slot on the limiting block, the support spring provides support force, which can limit the limiting block. When the limiting block is rotated around the fixed seat, if the rotational force is greater than the support force of the support spring, the locking block retracts into the limiting slot. When the limiting block is not rotated, the locking block re-locks into the slot, thereby achieving the rotational limitation of the limiting block.

[0010] The present invention is further provided that a dustproof net is fitted on the fixing plate.

[0011] The above technical solution is adopted to filter dust from the air sucked into the mounting slot of the frequency converter control circuit board.

[0012] The present invention is further configured such that the surface of the card block is symmetrically equipped with sliders, and the interior of the limiting groove is provided with a sliding groove that is slidably connected to the sliders.

[0013] The above technical solution facilitates the sliding and limiting of the card block.

[0014] The present invention is further configured such that the end of the card block is a protruding semi-circle, and the shape of the card groove is a concave semi-circle.

[0015] The above technical solution facilitates the removal of the card block from the card slot.

[0016] The present invention is further provided that the top of the main body of the heating and cooling unit is provided with an exhaust groove that communicates with the inner groove.

[0017] The above technical solution facilitates the exhaust of air from the mounting slot of the frequency converter control circuit board.

[0018] In summary, this utility model has the following beneficial effects: 1. This utility model has an inner groove inside the mounting slot of the frequency converter control circuit board, and an exhaust fan blade is installed inside the inner groove. Under the action of the connecting rod and the transmission mechanism, the exhaust fan blade can be driven to rotate when the main body of the air conditioner is working, so as to draw external air into the mounting slot of the frequency converter control circuit board to dissipate heat from the frequency converter control circuit board. There is no need to install a cooling fan, which reduces costs and achieves the purpose of energy saving. 2. This utility model features a fixed plate inside the stepped groove, on which a dustproof net is installed. When the dustproof net needs to be removed for cleaning, simply rotate the limiting block so that it does not limit the fixed plate, and the fixed plate can be removed from inside the stepped groove, achieving the purpose of quickly removing the dustproof net and facilitating the cleaning work. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the limiting block of this utility model; Figure 3 This is a sectional view of the fixing base of this utility model; Figure 4 This is a partial structural schematic diagram of the present invention; Figure 5 This is a partial structural cross-sectional view of the present invention.

[0020] Reference numerals in the attached drawings: 1. Main body of the heating / cooling unit; 2. Inner groove; 3. Exhaust fan blade; 4. Connecting rod; 5. Transmission mechanism; 51. First bevel gear; 52. Second bevel gear; 6. Step groove; 7. Fixing plate; 8. Fixing base; 9. Limiting block; 10. Limiting groove; 11. Limiting mechanism; 111. Locking block; 112. Supporting spring; 12. Dustproof net; 13. Sliding block; 14. Slide groove; 15. Exhaust groove; 16. Locking slot. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Example 1: Reference Figure 4 and Figure 5A heat dissipation mechanism for a variable frequency air conditioner includes an air conditioner body 1. The air conditioner body 1 has an inner groove 2 inside a mounting slot for a variable frequency control circuit board. An exhaust fan blade 3 is installed inside the inner groove 2. A connecting rod 4 is fixedly sleeved at the center of the exhaust fan blade 3. A transmission mechanism 5 is installed inside the fan mounting slot of the air conditioner body 1. By providing the inner groove 2 inside the mounting slot of the variable frequency control circuit board and installing the exhaust fan blade 3 inside the inner groove 2, the air conditioner body 1 can rotate the exhaust fan blade 3 during operation, drawing external air into the mounting slot of the variable frequency control circuit board to dissipate heat from the circuit board. This eliminates the need for an additional cooling fan, reducing costs and achieving energy savings.

[0023] refer to Figure 5 The transmission mechanism 5 includes a first bevel gear 51 that is fixedly sleeved with the fan shaft inside the fan mounting slot. One end of the connecting rod 4 passes through the inside of the fan mounting slot and is fixedly sleeved with a second bevel gear 52 that meshes with the first bevel gear 51. By setting the first bevel gear 51 and the second bevel gear 52, when the main body 1 of the cooling and heating machine is working, the fan of the main body 1 of the cooling and heating machine rotates, the fan shaft drives the first bevel gear 51 to rotate, the first bevel gear 51 drives the second bevel gear 52 to rotate, and thus the second bevel gear 52 drives the connecting rod 4 to rotate.

[0024] refer to Figure 5 The top of the main body 1 of the heating and cooling unit is provided with an exhaust groove 15 that communicates with the inner groove 2. By setting the exhaust groove 15, it is convenient for the air inside the mounting groove of the frequency converter control circuit board to be discharged.

[0025] Brief description of usage: When the main body 1 of the heat and cooler is working, the fan of the main body 1 rotates with the motor, and the fan shaft rotates accordingly. The rotation of the fan shaft drives the first bevel gear 51 to rotate. Under the action of the second bevel gear 52 and the connecting rod 4, the exhaust fan blade 3 rotates, and a negative pressure is generated inside the inner groove 2. This negative pressure is generated inside the mounting slot of the frequency converter control circuit board, which draws in external air into the mounting slot of the frequency converter control circuit board to dissipate heat from the frequency converter control circuit board. No additional cooling fan is required.

[0026] This heat dissipation structure is mainly used in outdoor units of inverter-driven air conditioners, such as the NE-C012BZ-B2D / UG model, an inverter-driven air conditioner from New Energy Technology. Its working principle involves compressing a low-temperature, low-pressure gaseous refrigerant in the compressor, transforming it into a high-temperature, high-pressure gaseous refrigerant. This high-temperature, high-pressure gaseous refrigerant then enters the condenser, where it exchanges heat with indoor air or water, releasing heat and condensing into a high-temperature, high-pressure liquid refrigerant. This raises the temperature of the indoor air or water, achieving heating. The high-temperature, high-pressure liquid refrigerant then passes through a throttling device, such as an expansion valve, to reduce its pressure, becoming a low-temperature, low-pressure liquid refrigerant. This low-temperature, low-pressure liquid refrigerant enters the evaporator, absorbs heat from the outdoor air, and evaporates into a low-temperature, low-pressure gaseous refrigerant. Then... The refrigerant enters the compressor, completing a heating cycle. Similar to the heating cycle, the low-temperature, low-pressure gaseous refrigerant is compressed into a high-temperature, high-pressure gaseous refrigerant in the compressor. The high-temperature, high-pressure gaseous refrigerant enters the condenser, exchanges heat with the outdoor air, releases heat, and condenses into a high-temperature, high-pressure liquid refrigerant. The high-temperature, high-pressure liquid refrigerant is then throttled and depressurized through a throttling device, becoming a low-temperature, low-pressure liquid refrigerant. The low-temperature, low-pressure liquid refrigerant enters the evaporator, absorbs heat from the indoor air, and evaporates into a low-temperature, low-pressure gaseous refrigerant, thereby lowering the indoor air temperature and achieving cooling. Then, the gaseous refrigerant enters the compressor again to complete a refrigeration cycle. This type of heating and cooling machine uses a four-way valve to switch the direction of refrigerant flow, thereby achieving the switching between heating and cooling modes.

[0027] Example 2: Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 A heat dissipation mechanism for a variable frequency air conditioner includes an air conditioner body 1. The air conditioner body 1 has an inner groove 2 inside a mounting slot for a variable frequency control circuit board. An exhaust fan blade 3 is installed inside the inner groove 2, and a connecting rod 4 is fixedly sleeved at the center of the exhaust fan blade 3. A transmission mechanism 5 is installed inside the fan mounting slot of the air conditioner body 1. Stepped grooves 6, communicating with the mounting slot of the variable frequency control circuit board, are opened on both the front and back of the air conditioner body 1. A fixing plate 7 is snapped into the stepped groove 6. The top and bottom of the fixing plate 7 are symmetrically provided with fixing sleeves for the air conditioner body 1. The fixed base 8 is connected to a limiting block 9, which is rotatably connected to the surface of the fixed base 8. The fixed base 8 has symmetrically opened limiting grooves 10 at the ears. The limiting grooves 10 are equipped with limiting mechanisms 11. The limiting block 9 has a slot 16. The fixed plate 7 is designed inside the stepped groove 6. The dustproof net 12 is installed on the fixed plate 7. When it is necessary to remove the dustproof net 12 for cleaning, simply rotate the limiting block 9 so that it does not limit the fixed plate 7, and the fixed plate 7 can be taken out from inside the stepped groove 6, so as to quickly remove the dustproof net 12 and facilitate the cleaning work.

[0028] refer to Figure 3 The limiting mechanism 11 includes a locking block 111 disposed inside the limiting groove 10. A support spring 112 is engaged between the locking block 111 and the limiting groove 10. By setting the locking block 111 and the support spring 112, when the locking block 111 is engaged inside the slot 16 on the limiting block 9, the support spring 112 provides support force, which can limit the limiting block 9. When the limiting block 9 is rotated about the fixed seat 8, when the rotational force is greater than the support force of the support spring 112, the locking block 111 retracts into the limiting groove 10. When the limiting block 9 is not rotated, the locking block 111 re-engages into the slot 16, thereby achieving the rotational limitation of the limiting block 9.

[0029] refer to Figure 1 The fixed plate 7 is equipped with a dustproof net 12, which filters dust from the air sucked into the mounting slot of the frequency converter control circuit board.

[0030] refer to Figure 3 The surface of the card block 111 is symmetrically equipped with sliders 13, and the inside of the limiting groove 10 is provided with a sliding groove 14 that is slidably connected to the sliders 13. By setting the sliders 13 and the sliding grooves 14, it is convenient to slide and limit the card block 111.

[0031] refer to Figure 2 and Figure 3 The end of the locking block 111 is a protruding semi-circle, and the shape of the slot 16 is a concave semi-circle. By setting the end of the locking block 111 to be a protruding semi-circle and the shape of the slot 16 to be a concave semi-circle, it is convenient for the locking block 111 to be disengaged from the slot 16.

[0032] Brief description of the usage process: When it is necessary to remove the dustproof net 12 on the fixed plate 7, simply rotate the limiting block 9. When the rotation force is greater than the supporting force of the supporting spring 112, the locking block 111 retracts into the limiting groove 10. When the limiting block 9 is not rotated, the locking block 111 re-locks into the locking groove 16, and limits the limiting block 9 again. When the limiting block 9 no longer limits the fixed plate 7, the fixed plate 7 can be taken out, along with the dustproof net 12.

[0033] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0034] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

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