Anti-frosting air conditioning unit

Abstract

The utility model discloses an anti-frosting air conditioning unit which comprises an air conditioning unit body, an evaporator is installed in the air conditioning unit body, and a heating rod for heating through a resistance coil is installed at the position, located outside the evaporator, in the air conditioning unit body. Heat in the surrounding air is absorbed through the evaporator, when the outdoor temperature is very low, and the temperature of the surface of the evaporator is lower than the dew point of the surrounding air, water vapor in the air can be condensed into frost on the surface of the evaporator, and the frost is condensed into the frost on the surface of the evaporator. At the moment, the periphery of the evaporator is heated through the heating rod, frost on the evaporator is heated and melted into a liquid state, liquid water is collected and recycled through the water collecting tower, channels among fins of the evaporator are prevented from being blocked by frosting, the air flowing resistance is prevented from being increased, and therefore the heat exchange efficiency is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning unit technical field, concretely is a kind of anti-frost air conditioning unit. BACKGROUND

[0002] Air conditioning unit is a kind of equipment for adjusting indoor air temperature, humidity and air quality. It is mainly composed of compressor, condenser, evaporator, throttle valve, cooling tower and control system, and the compressor in air conditioning unit is the core component of refrigeration cycle. It sucks low-pressure, low-temperature refrigerant gas and compresses into high-pressure, high-temperature gas, and the high-temperature high-pressure refrigerant gas after compression enters the condenser and exchanges heat with the surrounding air or other medium, releases heat to the environment, and the refrigerant cools and becomes high-pressure liquid. The high-pressure liquid refrigerant passes through expansion valve, and the pressure decreases, and the temperature also decreases, and becomes low-pressure, low-temperature gas. The low-pressure low-temperature refrigerant enters the evaporator and exchanges heat with indoor air, absorbs indoor heat, cools the air, and the refrigerant evaporates into gas, and then circulates back to the compressor.

[0003] At present, when air conditioner runs in cooling or heating mode, the evaporator of outdoor unit will absorb heat in the surrounding air. If the outdoor temperature is very low, and the temperature of evaporator surface is lower than the dew point of surrounding air, water vapor in the air will condense into frost on the surface of evaporator. After frosting, the frost layer will block the channel between evaporator fins, increase air flow resistance and reduce heat exchange efficiency.

[0004] Therefore, an anti-frost air conditioning unit is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] 1. Technical problem to be solved by the utility model

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an anti-frost air conditioning unit, which aims to solve the problem that when air conditioner runs in cooling or heating mode, the evaporator of outdoor unit will absorb heat in the surrounding air. If the outdoor temperature is very low, and the temperature of evaporator surface is lower than the dew point of surrounding air, water vapor in the air will condense into frost on the surface of evaporator. After frosting, the frost layer will block the channel between evaporator fins, increase air flow resistance and reduce heat exchange efficiency.

[0007] Technical scheme

[0008] To achieve the above purpose, the utility model provides the following technical scheme:

[0009] The utility model provides an anti -frost air conditioning unit, including air conditioning unit, the inside installation of air conditioning unit is equipped with evaporator, the inside of air conditioning unit is located the outside of evaporator and is equipped with the heating stick of heating through electric resistance coil, the outside of air conditioning unit is equipped with the water collecting tower for collecting after liquefaction frost.

[0010] As the utility model preferred scheme, air conditioning unit is equipped with two, and the both sides of evaporator in air conditioning unit are equipped with heating stick on the top, heating stick generates heat through electric resistance coil by current.

[0011] As the utility model preferred scheme, heating stick is composed of two end splicing, and temperature sensor for monitoring the surface temperature of evaporator is embeddedly installed at the splicing of heating stick, and heating stick is automatically started for thirty minutes and then automatically closed when the surface temperature of evaporator is less than 280 DEG C.

[0012] As the utility model preferred scheme, the one end of the inside bottom of air conditioning unit is equipped with baffle, the inside bottom of air conditioning unit is enclosed into a cavity of collecting liquefaction frost by baffle, and liquid level sensor is embeddedly installed on the side top of baffle.

[0013] As the utility model preferred scheme, the top of water collecting tower is connected with inlet pipe, one end of inlet pipe is connected with shunt pipe, and both ends of shunt pipe respectively pass through the bottom of one side of two air conditioning units and extend into the inside bottom of air conditioning unit.

[0014] As the utility model preferred scheme, the bottom of the outside of water collecting tower is connected with drain pipe for discharging collected water, water pump is installed in the inside bottom of water collecting tower, the water inlet port of water pump is connected with one end of inlet pipe, water pump is automatically started to pump water into water collecting tower when liquid level sensor is immersed in water, and water pump is closed after liquid level sensor is all exposed from water surface. Beneficial effects

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses through evaporator absorbs the heat in surrounding air, when the outdoor temperature is very low, and the temperature of evaporator surface is lower than the dew point of surrounding air, and the water vapor in air will condense into frost on the evaporator surface, at this moment, heating stick is used to heat around the evaporator, and the frost on the evaporator is heated and melted into liquid, and water collecting tower is used to collect liquid water and reuse, avoid frost blocking the passage between evaporator fins, increase air flow resistance, thereby guaranteeing heat exchange efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1The utility model relates to a whole structure schematic diagram of a frost prevention air conditioning unit.

[0018] Figure 2 The utility model relates to a whole structure schematic diagram of a frost prevention air conditioning unit.

[0019] Figure 3 The utility model relates to a whole structure schematic diagram of a frost prevention air conditioning unit.

[0020] In the drawing: 1, air conditioning unit;11, evaporimeter;12, heating rod;13, temperature sensor;14, baffle;15, liquid level sensor;2, water collecting tower;21, water inlet pipe;22, shunt pipe;23, drain pipe;24, water pump. Specific implementation

[0021] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, and all other embodiments obtained by the person skilled in the art without creative work based on the embodiments in the utility model belong to the range protected by the utility model. Embodiment

[0022] Please refer to Figures 1-3 The embodiment provides a frost prevention air conditioning unit, comprising an air conditioning unit 1, characterized by: the inside of the air conditioning unit 1 is internally provided with an evaporimeter 11, the outside of the evaporimeter 11 in the air conditioning unit 1 is externally provided with a heating rod 12 heated by a resistance coil, and the outside of the air conditioning unit 1 is externally provided with a water collecting tower 2 for collecting the liquefied frost, when the frost prevention air conditioning unit is used, the evaporimeter 11 absorbs the heat in the surrounding air, when the outdoor temperature is very low, and the temperature of the evaporimeter surface is lower than the dew point of the surrounding air, the water vapor in the air will condense into frost on the evaporimeter surface, at this time, the heating rod 12 is used to heat the evaporimeter 11 around, the frost on the evaporimeter 11 is heated and melted into liquid state, the water collecting tower 2 is used to collect the liquid water for reuse, frost blocking the channel between the evaporimeter fins is avoided, air flow resistance is increased, and therefore the heat exchange efficiency is guaranteed.

[0023] In the embodiment, as Figure 2As shown, the air conditioning unit 1 is provided with two, and the evaporator 11 inside the air conditioning unit 1 both sides of the outer and top above are installed with heating rod 12, heating rod 12 by electric current through the resistance coil generates heat, heating rod 12 is spliced by two ends, and the temperature sensor 13 for monitoring the surface temperature of the evaporator 11 is embeddedly installed at the splicing position of the heating rod 12. When the surface temperature of the evaporator 11 is lower than 5℃, the heating rod 12 is automatically started for 30 minutes and then automatically closed, so that the heating rod 12 can be started in time to heat the evaporator 11, avoiding the surface temperature of the evaporator 11 being too low to frost, and the heating rod 12 can also heat the evaporator 11 for 30 minutes to melt the frost on the surface of the evaporator 11.

[0024] In the embodiment, as shown in Figure 2 and Figure 3 As shown, the top of the water collecting tower 2 is connected with the water inlet pipe 21, one end of the water inlet pipe 21 is connected with the shunt pipe 22, the two ends of the shunt pipe 22 respectively pass through the bottom of one side of the two air conditioning units 1 and extend into the inside bottom of the air conditioning unit 1, the outside bottom of the water collecting tower 2 is connected with the drain pipe 23 for discharging the collected water, and the inside bottom of the water collecting tower 2 is installed with the water pump 24, the water inlet port of the water pump 24 is connected with one end of the water inlet pipe 21. When the liquid level sensor 15 is immersed in water, the water pump 24 is automatically started to pump water into the water collecting tower 2, and when the liquid level sensor 15 is completely exposed from the water surface, the water pump 24 is closed, so that the water after the frost is liquefied can be automatically pumped into the water collecting tower 2, avoiding the inside bottom of the air conditioning unit 1 from collecting too much water, and the collected water can be reused to save water resources.

[0025] Working principle: when the anti-frost air conditioning unit is used, the evaporator 11 first absorbs heat from the surrounding air. When the outdoor temperature is very low, and the temperature of the evaporator surface is lower than the dew point of the surrounding air, the water vapor in the air will condense into frost on the surface of the evaporator. The temperature sensor 13 can monitor the surface temperature of the evaporator 11. When the temperature is lower than 5℃, the heating rod 12 is automatically started to heat for 30 minutes, avoiding the surface temperature of the evaporator 11 from being too low to frost, and the heating rod 12 can also heat the evaporator 11 for 30 minutes to melt the frost on the surface of the evaporator 11. The melted frost will drop on the inside bottom of the air conditioning unit 1, avoiding the frost from blocking the channel between the evaporator fins and increasing the air flow resistance, so as to ensure the heat exchange efficiency. When the liquid level sensor 15 is immersed in water, the water pump 24 is automatically started to pump water into the water collecting tower 2, so that the water after the frost is liquefied can be automatically pumped into the water collecting tower 2, avoiding the inside bottom of the air conditioning unit 1 from collecting too much water, and the collected water can be reused to save water resources. When the liquid level sensor 15 is completely exposed from the water surface, the water pump 24 is closed.

[0026] All the technical features in the embodiment can be freely combined according to actual needs.

[0027] The above embodiment is a preferred implementation scheme of the present application, in addition to this, the present application can be implemented in other ways, and any obvious replacement without departing from the technical scheme concept is within the protection scope of the present application.

Claims

1. An anti-frosting air conditioning unit comprising an air conditioning unit (1), characterized in that: The air conditioning unit (1) is internally mounted with an evaporator (11), the inside of the air conditioning unit (1) is externally mounted with a heating rod (12) heated by a resistance coil, and the outside of the air conditioning unit (1) is externally mounted with a water collecting tower (2) for collecting liquefied frost.

2. An anti-frosting air conditioning unit as claimed in claim 1, characterized in that: The air conditioning unit (1) is provided with two, and the heating rod (12) is installed on the top of the two side surfaces and the top of the evaporator (11) inside the air conditioning unit (1), and the heating rod (12) generates heat by passing current through a resistance coil.

3. An anti-frosting air conditioning unit as claimed in claim 1, characterized in that: The heating rod (12) is composed of two ends, and a temperature sensor (13) for monitoring the surface temperature of the evaporator (11) is embeddedly installed at the joint of the heating rod (12), and the heating rod (12) is automatically started for thirty minutes and then automatically closed when the surface temperature of the evaporator (11) is lower than 5℃.

4. An anti-frosting air conditioning unit as set forth in claim 1, wherein: The inner side of the air conditioning unit (1) is provided with a baffle (14) at one end of the bottom, which surrounds the inner side of the air conditioning unit (1) to form a cavity for collecting liquefied frost, and a liquid level sensor (15) is embeddedly installed on the side of the baffle (14).

5. An anti-frosting air conditioning unit as set forth in claim 1 wherein: The top of the water collecting tower (2) is connected with a water inlet pipe (21), one end of the water inlet pipe (21) is connected with a shunt pipe (22), and the two ends of the shunt pipe (22) respectively pass through the bottom of one side of the two air conditioning units (1) and extend into the inner bottom of the air conditioning unit (1).

6. An anti-frosting air conditioning unit as set forth in claim 1, wherein: The outer side of the water collecting tower (2) is connected with a drain pipe (23) for discharging collected water, and the inner bottom of the water collecting tower (2) is provided with a water pump (24), and the water inlet port of the water pump (24) is connected with one end of the water inlet pipe (21). When the liquid level sensor (15) is immersed in water, the water pump (24) is automatically started to pump water into the water collecting tower (2), and when the liquid level sensor (15) is completely exposed from the water surface, the water pump (24) is closed.

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