CN101634507A - Condenser and outdoor unit of split air conditioner - Google Patents

Abstract

The invention relates to a condenser and an outdoor unit of a split air conditioner. The invention discloses a condenser (3), which includes two left and right collector pipes (101), several communicating pipes (102), and cooling fins ( 103) and the inlet pipe (105) and liquid outlet pipe (106) protruding from one side of the collector pipe (101), the left and right two collector pipes (101) are arranged in parallel, and the connecting pipe (102) is set Between the left and right two collector pipes (101) and connected to the inner cavity of the left and right two collector pipes (101), the cooling fins (103) are arranged between adjacent communicating pipes (102); the present invention Also disclosed is an outdoor unit of an air conditioner, comprising a box body and a condenser (3) inside the box body, a fan motor component and a compressor, and the size of the box body is 600×250×510; The loss is small, the heat loss is small, the flow and heat exchange of the refrigerant are reasonable, and the outdoor unit of the present invention realizes miniaturization, compact structure, light weight, and high refrigeration efficiency.

Description

Condenser and outdoor unit of split air conditioner

technical field

The invention relates to the technical field of air conditioners in electrical equipment, more specifically, to a condenser and an outdoor unit of a split air conditioner equipped with the condenser.

Background technique

According to the "Energy Efficiency Limits and Energy Efficiency Grades of Room Air Conditioners" standard (GB12021.3-2004) promulgated in 2004, by 2009, the limit value of energy consumption of air conditioners (≤4500W) in the Chinese market will be raised from 2.6 to 3.2 , which means that the market entry level of air conditioners has been greatly improved. The condensers of existing household split air conditioners generally use copper tube fin heat exchangers. Due to the high price of copper materials, with the improvement of energy efficiency, the use of copper materials will inevitably increase, and the manufacturing cost of the whole machine will increase accordingly. Make household air conditioner manufacturers face greater cost pressure. In order to control product cost and improve product performance, most air conditioner manufacturers are focusing on the research and development of new high-efficiency heat exchangers to replace the original copper-tube-finned condensers.

9.52冷凝器。此冷凝器成本约200元左右(按铜价4万/吨，铝价2万/吨)，箱体相关钣金件成本约200元左右，壳体钣金件和冷凝器的成本都偏高。此外，大壳体的包装尺寸相应较大，使用集装箱运输时的装箱量低，出口时运输成本较高。Comparing the product series parameters of major manufacturers, for the outdoor unit of the existing single-cooling split air conditioner with a cooling capacity of 3500W, if the energy efficiency ratio is to reach more than 3.2, the commonly used box size is generally 760 (length) x 255 (width) )x540 (height) mm, and equipped with a double-bent row of copper pipes with a diameter of

9.52 Condenser. The cost of this condenser is about 200 yuan (according to the copper price of 40,000/ton and the aluminum price of 20,000/ton), the cost of the relevant sheet metal parts of the box is about 200 yuan, and the cost of the shell sheet metal parts and the condenser is relatively high. In addition, the packaging size of the large shell is correspondingly large, the packing volume when transported in a container is low, and the transportation cost is high when exported.

Contents of the invention

The technical problem to be solved by the present invention is to provide a condenser with high cooling efficiency and an outdoor unit of a split air conditioner equipped with the condenser, which has a miniaturized box size, high energy efficiency ratio, and low overall cost.

In order to solve the above-mentioned technical problems, the technical solution of the present invention is: a condenser, the condenser includes two collecting pipes on the left and right, several connecting pipes, cooling fins and air intake pipes protruding from one side of the collecting pipes, The liquid outlet pipe, the left and right two collecting pipes are arranged in parallel, the connecting pipe is arranged between the left and right two collecting pipes and communicates with the inner chambers of the left and right two collecting pipes, and the cooling fins are arranged on the corresponding between adjacent connecting pipes.

The condenser is an all-aluminum heat exchanger, and the condenser is an all-aluminum heat exchanger. Its processing technology, heat transfer mechanism, and structural structure are different from the existing copper tube-fin condensers. The all-aluminum condenser The heat exchange efficiency of the heat exchanger is higher than that of the copper tube fin heat exchanger of the same size, and the heat transfer capacity is large, so to achieve the same heat transfer heat as the copper tube fin heat exchanger, you can use The condenser has a smaller external dimension, so the air conditioner outdoor unit casing can also be miniaturized.

The connecting pipe is a flat pipe, the thickness of the flat pipe is 1~~2mm, and the cross section of the flat pipe can be in different shapes, such as rectangular or elliptical.

The connecting pipes are arranged parallel to each other and at intervals, which can make the flow of the connecting pipes short and the resistance loss small, and at the same time make the overall structure of the heat exchanger compact and the production process simple.

The connecting pipe is made into a straight plate or "L" shape. According to the assembly requirements of the box body and the model capacity or energy efficiency requirements, generally the model with small capacity and low energy efficiency uses a straight plate, and the model with large capacity and high energy efficiency uses L" type.

The left and right collecting pipes are cylindrical, and the cylindrical shape is beneficial to the uniform distribution of the refrigerant in the condenser.

The condenser also includes partitions arranged in the collecting pipe and dividing the collecting pipe into several regions. The condenser is divided into different processes through the partitions, so that the refrigerant has different flow modes.

An air-conditioning outdoor unit installed with the condenser includes a box body and a condenser inside the box, a fan motor part and a compressor, and the size of the box body is 600 mm x 250 mm x 510 mm to 760 mm x 255 mm x 540 mm.

The box includes a top cover, a support bar, a front plate, a base part and a right side plate, and the front plate, the right side plate and a support bar are installed on the periphery of the base part, and the top is covered with a top cover.

The air conditioner outdoor unit also includes a two-way valve and a three-way valve fixed on the right side plate, and the air conditioner outdoor unit is connected with the air conditioner indoor unit through the two-way valve and the three-way valve.

The beneficial effect of the present invention relative to prior art is:

The refrigerant process of the condenser of the present invention is short, the pressure loss is small, the heat loss is small, the flow and heat exchange of the refrigerant are reasonable, the effective volume on the flat tube of the condenser can be used most rationally, and the air side flow resistance is small, the transmission The heat coefficient is high, so the heat exchange efficiency is higher than that of the common copper tube fin condenser, and it has compact structure and light weight; the invention miniaturizes the design of the outdoor unit, reduces the volume and weight of the outdoor unit, and improves the cooling performance of the air conditioner. efficiency.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings.

Fig. 1 is the outline drawing of condenser of the present invention;

Fig. 2 is another kind of outline drawing of condenser of the present invention;

Fig. 3 is the schematic diagram of the refrigeration system of the air conditioner of the present invention;

Fig. 4 is a schematic diagram of the explosion of the outdoor unit of the air conditioner of the present invention;

Fig. 5 is a front side view of the appearance of the outdoor unit of the air conditioner of the present invention.

Detailed ways

”形，连通管102做成直板型。平行且间隔设置能使连通管102流程短、阻力损失小，同时使换热器整体结构紧凑、生产工艺简单。Referring to accompanying drawing 1, a kind of condenser 3 comprises left and right two collecting pipes 101, several connecting pipes 102, cooling fins 103 and the inlet pipe 105 that protrudes from the collecting pipe 101 side, the liquid outlet pipe 106, so The two left and right collector pipes 101 are arranged in parallel, the connecting pipe 102 is arranged between the left and right two collector pipes 101 and communicates with the inner cavities of the left and right two collector pipes 101, and the cooling fins 103 are arranged on the corresponding Between the adjacent communication pipes 102, the left and right headers 101 are cylindrical headers, which are conducive to the uniform distribution of refrigerant in the condenser; the communication pipes 102 are flat tubes arranged in parallel with each other and at intervals , the thickness of the flat tube is 1~~2mm, and the section of the flat tube can be in different shapes, such as rectangular or oval or "

” shape, and the connecting pipe 102 is made into a straight plate shape. Parallel and spaced arrangement can make the flow of the connecting pipe 102 short and the resistance loss small, and at the same time make the overall structure of the heat exchanger compact and the production process simple.

As shown in Figure 2, it is a bent "L"-shaped condenser 3, and its structure is exactly the same as that of the condenser 3 in Figure 1. Bent "L" shaped condenser.

3 is a schematic diagram of the refrigeration system of the air conditioner of the present invention. In the figure, the air conditioner is composed of an indoor unit 201 and an outdoor unit 202 connected by a liquid connecting pipe 203 and a gas connecting pipe 204 . The refrigeration cycle process of the whole machine is as follows: the refrigerant is discharged from the exhaust pipe 206 on the compressor 9, flows in through the inlet pipe 105 of the condenser 3, and then flows out from the liquid outlet pipe 106 of the condenser 3. At this time, the refrigerant is condensing The high-temperature and high-pressure liquid formed through heat exchange in the device 3 flows into the indoor evaporator 211 from the liquid inlet pipe 210 of the indoor evaporator 211 through the two-way stop valve 13 and the liquid connecting pipe 203 after being decompressed and cooled by the throttling part 208, and then from the The air outlet pipe 212 of the indoor evaporator 211 flows out. At this time, after the refrigerant undergoes heat exchange to form a low-temperature and low-pressure gas, it flows into the compressor 9 from the suction pipe 214 of the compressor 9 through the gas connecting pipe 204 and the three-way stop valve 14, and then restarts. Enter the next refrigeration cycle.

As shown in Figure 4, it is a schematic diagram of an explosion of an outdoor unit of an air conditioner according to the present invention, which includes a top cover plate 1, a support rod 2, a condenser 3, a motor bracket 4, a fan motor 5, a fan 6, and a front plate body 7. Fan cover 8, compressor 9, base part 10, intermediate partition 11, right side plate 12, two-way valve 13, three-way valve 14, valve mounting seat 15, wiring cover 16, electrical installation board 17 and so on. Its structure is installed as follows: the condenser 3 is fixed on the rear edge of the base part 10 through the end plate, the compressor 9 is fixed on the three bolts on the right side of the base part 10, the fan 6 and the fan motor 5 are installed on the motor bracket 4 , and then fixed on the three screw holes at the front of the condenser 3, the middle partition 11 is fixed between the parallel flow condenser 3 and the front edge of the base part 10; Side plate 12, support rod 2, valve mounting seat 15, wiring cover 16, electrical mounting plate 17 are fixed on the right side plate 12, two-way valve 13, three-way valve 14 are fixed on the valve mounting seat 15, the box body Cover the top cover plate 1 again on the top, which constitutes the box structure of the whole outdoor unit.

As shown in FIG. 5 , it is a front side view of the appearance of the outdoor unit of the air conditioner according to the present invention. In this embodiment, the length of the outdoor unit housing is 600 mm, the width is 250 mm, and the height is 510 mm. In practical applications, the size of the outdoor unit housing (length x width x height) can be adjusted accordingly. It can be equipped with ordinary single-row or double-row, straight or bent copper tube-fin condensers, and it can also be equipped with straight or "L" type bent condensers 3, which are used for cooling capacity of 2300~3500W The single-cooling or heating and cooling split air conditioners meet the needs of different energy efficiency ratios and are highly versatile.

In the present invention, since the condenser 3 is applied to the outdoor unit of the split air conditioner, because the refrigerant flow of the heat exchanger is short, the pressure loss is small, the heat loss is small, the flow and heat exchange of the refrigerant are reasonable, and the condensation The effective volume on the flat tube of the condenser 3 can be used most rationally, and the air side flow resistance is small and the heat transfer coefficient is high, so the heat transfer efficiency is higher than that of the common copper tube fin condenser, and it has a compact structure, light weight, The whole machine has the advantages of less refrigerant filling, so the parallel flow condenser 3 of the present invention can be equipped on the small outdoor box, so that the maximum cooling capacity of the whole machine can reach 3500W, and the energy efficiency ratio can reach more than 3.2 in actual measurement. The volume of the whole outdoor unit can be reduced, the weight of the whole unit can be reduced, and the requirement of high energy efficiency ratio split air conditioner can be met.

Claims (10)

1. A condenser for a split air conditioner, characterized in that the condenser (3) includes two collector pipes (101) on the left and right, several connecting pipes (102), cooling fins (103) and from the collector pipes ( 101) The air inlet pipe (105) and the liquid outlet pipe (106) protruding from one side, the two left and right collector pipes (101) are arranged in parallel, and the connecting pipe (102) is arranged on the left and right two collector pipes The tubes (101) communicate with the inner cavities of the left and right collector tubes (101), and the cooling fins (103) are arranged between the adjacent communicating tubes (102). 2. The condenser of the split air conditioner according to claim 1, characterized in that the condenser (3) is an all-aluminum heat exchanger. 3. The condenser of split air conditioner according to claim 1, characterized in that the connecting pipe (102) is a flat pipe, and the cross section of the flat pipe is rectangular or elliptical. 4. The condenser of the split air conditioner according to claim 1, characterized in that the communication pipes (102) are arranged parallel to each other and spaced apart. 5. The condenser of the split air conditioner according to claim 1, characterized in that the connecting pipe (102) is made into a straight plate shape or an "L" shape. 6. The condenser of the split air conditioner according to claim 1, characterized in that the two left and right collectors (101) are cylindrical. 7. The condenser of the split air conditioner according to any one of claims 1 to 6, characterized in that the condenser (3) also includes a set in the header (101) and divides the header (101) into several Spacers (104) for the area. 8. An air conditioner outdoor unit of a split air conditioner equipped with a condenser according to claim 1, comprising a box body and a condenser (3), a fan motor component and a compressor (9) inside the box body, characterized in that the box body Dimensions are 600mm x 250mm x 510mm to 760mm x 255mm x 540mm. 9. The air conditioner outdoor unit of the split air conditioner according to claim 7, characterized in that the box body includes a top cover plate (1), a support rod (2), a front plate body (7), and a base part (10) And right side plate (12), described base part (10) periphery installs front plate body (7), right side plate (12), support bar (2) respectively, and the top covers top cover plate (1) again. 10. The air conditioner outdoor unit of split air conditioner according to claim 8, characterized in that it also includes a two-way valve (13) and a three-way valve (14) fixed on the right side plate (12), through which the air conditioner outdoor unit The two-way valve (13) and the three-way valve (14) are connected with the air-conditioning indoor unit.

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