A split air conditioner with enhanced cooling functionality.
Patent Information
- Authority / Receiving Office
- TR · TR
- Patent Type
- Patents
- Current Assignee / Owner
- VESTEL BEYAZ ESYA SANAYI & TICARET ANONIM SIRKETI
- Filing Date
- 2019-10-25
- Publication Date
- 2026-06-22
AI Technical Summary
Split air conditioners experience a decrease in cooling performance due to the overheating of the electronic board in the outdoor unit, which leads to reduced compressor efficiency and frequency, especially under high ambient temperatures.
The split air conditioner incorporates a condenser, fan, air tunnel, and heat distribution plate to direct air for effective cooling of the electronic board, enhancing cooling performance without additional fans.
The solution maintains compressor efficiency and improves cooling performance by effectively cooling the electronic board, allowing operation up to higher outdoor temperatures compared to conventional systems.
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Abstract
Description
TARIFF A split air conditioner with enhanced cooling functionality. Relevant Technical Field The present invention relates to improvements in cooling performance in air conditioners, and particularly in split air conditioners; more specifically, it concerns a split air conditioner that provides enhanced cooling for the electronic circuit board located in the outdoor unit, thereby minimizing the decrease in cooling performance caused by air temperature. Previous Technique Split air conditioners are two main components: an indoor unit and an outdoor unit, and they operate according to a simple refrigeration cycle. The compressor in the outdoor unit refrigerates the refrigerant gas. The compressor compresses and increases the temperature of the gas, which is then conveyed to the condenser via the remaining pipes. The heat exchanger plates in the outdoor unit act as a condenser for the refrigerant; in the condenser, the temperature of the gas is reduced. This process is achieved by the suction created by the fan located in the outdoor unit, which draws air over the condenser. The gas exiting the condenser passes through an expansion valve to undergo a phase change. The refrigerant, passing from vapor to steam, experiences a decrease in pressure and temperature. This cooling, with its temperature dropping below zero, is then transferred through copper pipes to the heat exchanger plates (evaporator) in the indoor unit. In the indoor unit, air drawn from the indoor environment is cooled by passing it through the evaporator and then expelled. In split air conditioners, when the air is hot and the unit is operating in cooling mode, the outdoor unit is exposed to warm air from its surroundings. During this time, the cooling cycle continues continuously. However, the temperature difference between the outdoor and indoor units affects the degree to which the refrigerant gas is compressed in the compressor. The electronic circuit board in the outdoor unit, which is exposed to high temperatures, drives the compressor to maintain the cooling cycle. The electronic circuit board, which sends commands for the compressor's compression frequency, overheats after a certain temperature and enters protection mode, sending a signal to the compressor to reduce the frequency. In the 4364 / TR frequency-dropping compressor, the refrigerant gas cannot undergo a complete phase change for the mentioned cooling cycle, and the cooling (cycle) performance decreases. Therefore, effectively cooling the electronic circuit board is crucial for the compressor to operate without a frequency drop. Description of the Invention The split air conditioner developed with the present invention shall include at least one condenser, at least one fan that draws air through the condenser; at least one air tunnel that directs the air drawn by the said fan and includes at least one frame surrounding the fan; at least one compressor and at least one external unit with at least one electronic circuit board that drives the said compressor and at least one external unit with at least one external unit with at least one external unit with at least one external unit with at least one external unit connected to at least one opening on the said frame, one end of which is connected to the said opening and the other end of which is directed to the said external unit in such a way that at least some of the air drawn by the fan from the said air tunnel is conveyed to the said external unit and the air passes through the said external unit to the said external unit. Purpose of the Invention The aim of the present invention is to develop a split air conditioner with improved cooling performance. Another aim of the current invention is to develop a split air conditioner in which the decrease in cooling performance due to air temperature is minimized. Another aim of the current invention is to develop a split air conditioner that provides an enhanced cooling function for the electronic circuit board located in the outdoor unit. Another aim of the present invention is to develop a split air conditioner that provides an enhanced cooling function for the electronic board located in the outdoor unit without the need for an additional fan. 4364 / TR Another aim of the current invention is to develop a split air conditioner that is easy to manufacture, has low production costs, and is reliable. Explanation of the Figures Application examples of the split air conditioner developed with the current invention are shown in the attached figures; Figure 1 shows a top view of the dental unit of the developed split air conditioner. Figure 2 is a close-up perspective view of a section of the outdoor unit of the developed split air conditioner. Figure 3 shows a front view of the dental unit of the developed split air conditioner. Figure 4 is an approximate front view of another section of the developed split air conditioner unit. Figure 5 shows a side view of the developed split air conditioner unit. Figure 6 shows a perspective view of the developed split air conditioner's outdoor unit with the front cover removed. Figure 7 shows a perspective view of the air tunnel contained within the developed split air conditioning dental unit. The parts in the figures are individually numbered, and the corresponding numbers are given below: External unit (D) Condenser (1) Air tunnel (2) Frame (2a) Grille (2b) Opening (2c) Fan (3) Cooling duct (4) Heat plate (5) First airflow (A1) Second airflow (A2) 4364 / TR Lid Box Compressor (6a) (6b) (7) Discovery's Explanation When the air is hot and split air conditioners are operating in cooling mode, the outdoor unit is exposed to hot air due to its surroundings. During this time, the cooling cycle continues constantly to cool the indoor environment. The electronic board located in the outdoor unit, which is exposed to high temperatures, drives the compressor to maintain the cooling cycle. The electronic board, which sends commands for the compressor's operating frequency, activates a protection function when it reaches a certain temperature and sends a signal to the compressor to reduce the frequency. The compressor, which is reduced to its operating frequency, cannot fully undergo a phase change in the refrigerant gas for the cooling cycle, and the cooling (cycle) performance decreases. Therefore, effectively cooling the electronic board is crucial for the compressor to operate without its frequency dropping. In this context, the present invention develops a split air conditioner that overcomes these problems. The split air conditioner developed with the present invention, the sample appearances of which are given in figures 1-7, includes at least one condenser (1), at least one fan (3) which enables the air to be drawn through the condenser; at least one air tunnel (2) which directs the air drawn in by the said fan (3) and surrounds the fan (3) and preferably includes at least one opening (2b) located on at least one surface of the said frame (2a); at least one compressor (7) and at least one electronic board (not shown in the figures) which drives the said compressor (7); at least one outdoor unit (D) which includes at least one mounting plate (5) which enables the air to be directed to the said electronic board; and the said outdoor unit (D) also includes at least one opening (2c) located on the said frame (2a);It includes at least one cooling channel (4) which is directed to the aforementioned distribution plate (5) in such a way that at least a part of the air drawn in by the fan (3) from the aforementioned air tunnel (2) is conveyed to the distribution plates (5) and the aforementioned air is reduced to LSLS by passing through the distribution plate (5). 4364 / TR In a sample application of the invention, the split air conditioner in question includes an indoor unit located in the indoor space to be cooled and an outdoor unit (D) located in the outdoor space. The outdoor unit (D) also includes at least one compressor (7) which provides the pressurization of the refrigerant gas for the refrigeration cycle; at least one electronic board which drives the compressor during the refrigeration cycle and determines the refrigerant heating frequency to be applied by the compressor; at least one condenser (1) which reduces the temperature of the refrigerant gas; at least one fan (3) which draws air through the condenser; at least one air tunnel (2) which directs the air drawn in by the fan; and at least one heat dissipation plate (5) located near the electronic board which reduces the temperature of the electronic board.In a preferred application of the invention, the aforementioned external unit (D) contains at least one box (6b) in which the electronic board® is located and at least one cover opening (6b) which covers the box and protects the electronic board® from external factors. In this application, the aforementioned mounting plate (5) is positioned adjacent to at least one surface of the box (6b) or in contact with at least one surface of the box (6b). With the operation of the fan® (3), air is drawn over the condenser (1), passes through the air tunnel (2), through the aforementioned grille (2b) and is discharged. The airflow path followed during this process is shown by the first airflow (A1). The Ilgara (2b) prevents the entry / contact of foreign objects or living beings into the dLŞ unit (D), thus ensuring the safety of the dLŞ unit (D).There is an opening (2c) on the frame (2a) which contains the air tunnel (2), surrounds the fan (3), and directs the air to be drawn in and expelled through the condenser (1). The cooling duct (4), one end of which is connected to the aforementioned opening (2c), ensures that the air taken from the air tunnel (2) is conveyed to the heat plate (5). Accordingly, the other open end of the cooling duct (4) is directed to the aforementioned heat plate (5). The air passing through the cooling duct (4) moves in the direction shown by the second air flow (A2); passing through the heat plate (5), it ensures that the heat plate (5) is lowered by s / EıID and thus the electronic board is cooled more effectively. The air passing through the mountain plate (5) is then drawn back into the air tunnel (2) by the fan (3) and this cycle is repeated during the time you use the Kliman®. With the present invention, a first split air conditioner with the aforementioned cooling duct nl l(4) and a second split air conditioner with the same characteristics but without the aforementioned cooling duct nl l(4) can be developed. The cooling performance of the first split air conditioner was compared with that of the second split air conditioner mentioned in case 4364 / TR, and it was observed that while the performance of the second split air conditioner decreased slightly at an outside temperature of 43 °C, the first split air conditioner could operate efficiently up to an outside temperature of 54 °C. The compressor frequency values determined for different ambient temperatures regarding the cooling performance of the first air conditioner and the second air conditioner mentioned in case 4364 / TR are shown in Table-1. Compressor frequency (Hz) at 43°C ambient temperature Compressor frequency (Hz) at 47°C ambient temperature Compressor frequency (Hz) at 50°C ambient temperature First air conditioner 74 70 60 Second air conditioner 70 57 51 % Improvement 5.71% 22.81% 17.65% Table -1 As shown in Table-1, the cooling performance of the split air conditioner in question is significantly increased compared to conventional split air conditioners. In conventional split air conditioners, the cooling process is carried out with the help of natural stone on the solid plates (5) located on the electronic board, while with the present invention, the cooling duct (5) is used to cool the heat exchanger plates with both natural and forced stone, using the air flow created by the rotation of the fan (3) in the unit (D). Thus, the cooling performance is increased without the need to use an additional fan or similar cooling unit.
Claims
REQUESTS 1. A split air conditioner with at least one condenser (1), at least one fan (3) which allows the air to be drawn through the condenser; at least one air tunnel (2) which directs the air drawn in by the said fan (3) and includes at least one frame (2a) surrounding the fan (3); at least one compressor (7) and at least one electronic board which drives the said compressor (7); at least one outdoor unit (D) which has at least one heat diffuser plate (5) which allows the air to be reduced to SIS on the said electronic board; and the characteristic of which is that the said outdoor unit (D) also has at least one opening (2c) located on the said frame (2a); It must contain at least one cooling channel (4) connected at one end to the aforementioned opening (2c), and the other end directed to the aforementioned SD distribution plate (5) so that at least one part of the air drawn in by the fan (3) is conveyed to the SD distribution plates (5) and the air is reduced by passing through the aforementioned distribution plate (5).