CN201964697U - Multi-section condenser and air conditioner outdoor unit - Google Patents

Abstract

The utility model relates to the technical field of air conditioners in electrical equipment, in particular to a segmental condenser and an air conditioner outdoor unit. The sectional condenser includes at least two sections of an upper condenser and a lower condenser that are stacked up and down and communicated with each other. Both the upper condenser and the lower condenser include fins and U-shaped tubes passing through the fins. The lower condenser The fin spacing of the condenser is greater than that of the upper condenser. The air conditioner outdoor unit of the utility model is an outdoor unit equipped with the segmented condenser. The size of each segment of the condenser in the utility model is greatly reduced compared with the size of the traditional condenser, and the size of the bending mold invested is smaller, especially the input of the fin mold is greatly reduced; the air conditioner of the utility model can prolong the defrosting interval time , Improve the low-temperature heating capacity of the air conditioner. The air conditioner of the utility model saves defrosting time, thereby reducing energy consumption and improving product competitiveness.

Description

A segmented condenser and an air conditioner outdoor unit

technical field

The utility model relates to the technical field of air conditioners in electrical equipment, in particular to a segmental condenser and an air conditioner outdoor unit.

Background technique

At present, air conditioners have been widely used in the daily life of residents' families and offices. For heating and cooling air conditioners, when the air conditioner is in heating operation, the outdoor condenser is under the action of the axial flow fan, and the heat exchange air is cooled by the condenser. Since the temperature of the air is lower than the dew point at this time, part of the water vapor will It condenses into water and flows along the fins of the condenser to the chassis of the outdoor unit, and finally, it is discharged from the outdoor unit of the air conditioner through the drain holes of the chassis. If the outdoor temperature is around 0°C and the humidity is high at this time, if the condensed water on the condenser cannot flow to the chassis in time, it will form frost on the heat exchanger, resulting in a decrease in the heat exchange capacity of the condenser. When the frost is completely covered and the heating capacity is lost, it will take a long time to defrost, and for the user, there will be a sense of discomfort for a period of time.

In the air conditioner of the prior art, the outdoor refrigeration system is made up of compressor, capillary tube and condenser etc.; Under normal circumstances, the condenser of the outdoor unit of the air conditioner is integrally formed, so the fin spacing of the outdoor condenser is consistent from top to bottom. Even if it is divided into two parts, due to manufacturing reasons, the fin spacing of the upper and lower condensers is also consistent. of. Therefore, when the air conditioner is in heating operation, when the condensed water on the condenser flows to the middle or lower part of the condenser, a lot of condensed water will be formed. For conventional integrally formed condensers or condensers with consistent fin spacing, It is easy to form relatively large water droplets in the middle and lower part of the condenser, and the possibility of water droplets bridging, frosting, or even freezing increases rapidly, resulting in a sharp decline in the heat exchange capacity of the existing condenser.

On the other hand, due to the large size of the integral condenser, the required equipment such as bending and fin molds is large in size, so the cost of the mold is very high, and the corresponding material loss will also be large.

Utility model content

The technical problem to be solved by the utility model is to provide a sectioned condenser which can reduce the consumption of raw materials, and the condenser can improve the heat exchange efficiency during heating, delay the frosting time, and improve the defrosting ability at the same time. The utility model also provides an air conditioner outdoor unit equipped with the condenser.

For solving the problems of the technologies described above, the first technical solution of the utility model is:

A sectional condenser, comprising at least two sections of an upper condenser and a lower condenser that are stacked up and down and communicated with each other, the upper condenser and the lower condenser both include fins and U-shaped tubes passing through the fins, the The fin spacing of the lower condenser is greater than that of the upper condenser. Since the condenser is composed of two or more stages of condensers, the fin molds used in the condenser are smaller, thereby reducing the consumption of raw materials.

The upper condenser and the lower condenser are communicated by connecting pipes, and the upper condenser and the lower condenser are connected by connecting pipes to form a whole.

The fin pitch of the upper condenser is 1.5 to 2.0 mm, and the fin pitch of the lower condenser is 1.7 to 2.2 mm. The best effect is that the fin spacing of the upper condenser is 1.7mm, and the fin spacing of the lower condenser is 2.0mm.

The second technical scheme of the utility model is:

An air conditioner outdoor unit, comprising an outdoor unit case, a chassis installed in the outdoor unit case, a compressor, a throttling capillary, a condenser, and a fan system. The lower condenser, the upper condenser and the lower condenser both include fins and U-shaped tubes passing through the fins, and the fin spacing of the lower condenser is greater than that of the upper condenser.

Due to the increased spacing between the fins of the lower condenser, the water condensed and precipitated on the upper condenser can quickly flow to the chassis by virtue of gravity. On the other hand, due to the large spacing between the fins of the lower condenser, the wind resistance of the circulating air is reduced, and the air volume is increased, which can easily blow away the water precipitated on the condenser. All of these reduce the possibility of frosting on the condenser. The frost time is delayed, and the heat exchanger of the utility model can effectively improve the heat exchange capacity of the condenser in the low-temperature heating process.

On the other hand, during the defrosting process, due to the increase in the fin distance of the lower condenser, the water formed during the defrosting process of the upper condenser can quickly pass through the lower condenser, flow to the chassis and be discharged from the outdoor unit. The defrosting time is reduced, which also improves the low-temperature heating capacity of the unit.

Further, the fan system adopts a dual fan side air outlet mode.

The beneficial effect of the utility model relative to the prior art is:

(1) The size of each section of the condenser in the utility model is greatly reduced compared with the size of the traditional condenser, and the size of the bending mold invested is smaller, especially the investment of the fin mold is greatly reduced;

(2) The air conditioner of the utility model can extend the defrosting interval time and improve the low-temperature heating capacity of the air conditioner;

(3) The utility model air conditioner saves defrosting time, thereby reducing energy consumption and improving product competitiveness.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Fig. 1 is a schematic diagram of the side structure of the outdoor unit of the air conditioner in the embodiment of the present invention after the side plate is removed;

Fig. 2 is a schematic diagram of the front structure of the outdoor unit of the air conditioner in the embodiment of the utility model after removing the front panel;

Fig. 3 is a schematic diagram of the side structure of the outdoor and lower condenser of the air conditioner in the embodiment of the utility model.

Detailed ways

As shown in FIG. 1 , the sub-stage condenser is composed of a lower condenser 3 and an upper condenser 6 , which are connected by a condenser connecting pipe 4 . The fin pitch of the lower condenser 3 is greater than the fin pitch of the upper condenser 6 .

Shown in Fig. 3 is lower condenser 3 of the present utility model, comprises lower condenser left end plate 12 and lower condenser right end plate 13, is located at the multi-row U-shaped between lower condenser left end plate 12 and lower condenser right end plate 13 The tube 10 and the heat exchanging fins 11 passing through the U-shaped tube, the heat exchanging fins in the U-shaped tube have the same pitch.

The pitch of the 6 fins of the upper condenser is the regular pitch of the condenser, which can ensure the normal heat exchange effect of the heat exchanger, while the pitch of the 3 fins of the lower condenser will increase to a certain extent compared with the pitch of the 6 fins of the upper condenser. During the heating process, due to gravity, the water droplets condensed by the condenser are not easy to adhere to the surface of the fins. At the same time, due to the reduction of wind resistance, the increase of wind speed, and the strengthening of disturbance, the water droplets are also difficult to adhere to. All of these strengthen the condensation The heat exchange effect of the heat exchanger at low temperature delays the formation of frost, so that the heat exchanger maintains a high heat transfer effect.

As shown in Figure 1 and Figure 2, the air conditioner outdoor unit of the present utility model includes a chassis 1, a compressor 2, a front panel, a top cover plate, a side plate, a lower condenser 3, an upper condenser 6, a four-way valve 5, The fan 7, the fan motor 8 and the fan motor support 9, wherein, the front panel, the top cover, and the side panels are not marked in the figure. The side of the end plate of the lower condenser 3 is provided with a structure for fastening with the installation chassis 1 . The fan system adopts dual fan side air outlet.

The working process of the utility model air conditioner is:

When the air conditioner is in heating operation, the high-temperature and high-pressure refrigerant discharged from the compressor 2 passes through the exhaust pipe, the four-way valve 5 and the stop valve, enters the indoor heat exchanger, and then returns to the outdoor unit to be throttled by the capillary tube. Finally, after passing through the lower condenser 3, the condenser connecting pipe 4 and the upper condenser 6 to absorb heat, and then through the four-way valve 5, it finally returns to the compressor 2 to complete the entire heating cycle.

For the outdoor fan system, the outdoor air is guided by the fan 7, passes through the lower condenser 3 and the upper condenser 6, and is cooled by forced convection heat exchange. In the initial stage of heat exchange, the water vapor in the air is condensed into water, flows down along the cooling fins, and is discharged out of the air conditioner through the drain hole of the chassis 1 . Since the fin spacing of the upper condenser 3 is smaller than the fin spacing of the lower condenser 6, the water droplets formed on the upper condenser 6 can easily flow from the lower condenser 3 to the chassis 1, and it is not easy to form water droplets on the lower condenser 3. The bridge delays the frosting time of the condenser and effectively improves the heat exchange capacity of the entire condenser. In the same way, the water droplets formed when the upper condenser 6 defrosts can easily flow down from the lower condenser 3, which reduces the defrosting time of the outdoor condenser, thereby improving the user's comfort and the performance coefficient of the whole machine.

Claims (6)

1. segmentation condenser, it is characterized in that: comprise at least two sections last condensers that stack up and down and be communicated with and following condenser, described top condenser and following condenser include fin and pass the U type pipe of fin, and the spacing of fin of described condenser down is greater than the spacing of fin of last condenser.

2. segmentation condenser according to claim 1 is characterized in that: the described condenser of going up is communicated with by tube connector with following condenser.

3. segmentation condenser according to claim 1 and 2 is characterized in that: the described condenser fin spacing that goes up is 1.5 to 2.0mm, and following condenser fin spacing is 1.7 to 2.2mm.

4. segmentation condenser according to claim 3 is characterized in that: described upward condenser fin spacing is 1.7mm, and following condenser fin spacing is 2.0mm.

5. air-conditioner outdoor unit, comprise the off-premises station casing, be installed in chassis, compressor, throttle capillary tube, condenser, fan system in the off-premises station casing, it is characterized in that: described condenser comprises at least two sections last condensers that stack up and down and be communicated with and following condenser, described top condenser and following condenser include fin and pass the U type pipe of fin, and the spacing of fin of described condenser down is greater than the spacing of fin of last condenser.

6. air-conditioner outdoor unit according to claim 5 is characterized in that: described fan system is a double fan side air-out mode.

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