Evaporator assembly in air conditioner

Abstract

The utility model discloses an evaporator component in an air conditioner, which comprises an evaporator and a fan configured on the evaporator, and further comprises an evaporator chamber, one side of the evaporator chamber is open, the other side of the evaporator chamber is provided with an air inlet, the evaporator is arranged in the evaporator chamber, and the air inlet can be opened or closed under the driving of a driving motor. An electric heater for heating the surface of the evaporator is also arranged in the evaporator chamber; the fan is a bladeless fan, and an air ring of the bladeless fan is fixedly connected to the opening of the evaporator chamber. According to the utility model, condensed water on the surface of the evaporator can be removed before frosting, and the problem that the condensed water cannot be removed is solved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner evaporators, specifically an evaporator component in an air conditioner. Background Technology

[0002] An air conditioner includes a compressor, a condenser equipped with a fan, an evaporator equipped with a fan, and a throttling element. The condenser is located on the outdoor side, and the evaporator is located on the indoor side. The high-temperature refrigerant output by the compressor dissipates heat to the outside through the condenser and its fan, and then enters the evaporator after the temperature is further reduced by the throttling element. The airflow formed by the evaporator fan passes through the evaporator and exchanges heat with the low-temperature refrigerant in the evaporator, thereby forming a low-temperature airflow that is blown into the room.

[0003] A problem with existing air conditioner evaporators is that condensation easily forms on their surface when operating in humid environments, leading to frost when excessive condensation occurs. Current technology typically defrosts the evaporator by heating the surface with an electric heater during condensation; however, this electric heating method only defrosts and does not solve the condensation problem. Utility Model Content

[0004] This invention provides an evaporator assembly for an air conditioner to solve the problem of condensation being difficult to remove from the evaporator of existing air conditioners.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An evaporator assembly in an air conditioner includes an evaporator and a fan configured thereon, characterized in that it further includes an evaporator chamber, one side of which is open to form an opening, the evaporator is disposed within the evaporator chamber, and an air inlet is provided on the side wall of the evaporator chamber, the air inlet being openable or closed under the drive of a drive motor; the evaporator chamber also includes an electric heater for heating the surface of the evaporator; the fan is a bladeless fan, and the air inlet end of the bladeless fan's air ring is fixedly connected to the opening of the evaporator chamber, so that the air inlet end of the bladeless fan's air ring communicates with the evaporator chamber through the opening of the evaporator chamber.

[0007] Furthermore, it also includes a controller, which is electrically connected to the motor of the bladeless fan, the drive motor of the air inlet, and the electric heater.

[0008] Furthermore, it also includes a condensate detection device, which is used to detect condensate on the surface of the evaporator and is electrically connected to the controller for signal transmission.

[0009] In this invention, the evaporator is located within an evaporator chamber, which has an openable and closable air inlet. The air inlet end of the bladeless fan's air ring is connected to the evaporator chamber. When it is necessary to remove condensation from the evaporator surface, the air conditioning compressor is stopped, and the air inlet of the evaporator chamber is closed, while the bladeless fan continues to operate. Because the air inlet end of the bladeless fan's air ring is connected to the evaporator chamber through the evaporator chamber opening, the negative pressure formed within the air ring when the bladeless fan is operating will draw air out of the evaporator chamber, thus creating a negative pressure within the evaporator chamber with the air inlet closed. Since the evaporator is located within the evaporator chamber, when a negative pressure is formed within the evaporator chamber, the condensation on the evaporator surface is in a negative pressure environment, lowering the boiling point of the condensation. Then, the electric heater is activated to heat the evaporator surface. At this point, it is not necessary to heat to an excessively high temperature to allow the condensation on the evaporator surface to condense into water vapor. The water vapor is then discharged under the force of the bladeless fan, thereby removing the condensation from the evaporator surface.

[0010] Compared with the prior art, this invention can remove condensation on the surface of the evaporator before frost forms, solving the problem that the existing technology can only defrost the evaporator with an electric heater and cannot remove condensation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model.

[0012] Figure 2 This is a schematic diagram of the control system structure of an embodiment of this utility model.

[0013] Figure 3 This is an example diagram of the air inlet of the evaporator chamber in an embodiment of this utility model. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] like Figure 1 As shown, this embodiment discloses an evaporator assembly in an air conditioner, including an evaporator chamber 1, an evaporator 2, and a fan and an electric heater 5 configured on the evaporator 2. The evaporator 2 is disposed inside the evaporator chamber 1. The right side of the evaporator chamber 1 is open, and the left side wall of the evaporator chamber 1 has an air inlet 3. An air inlet control mechanism that can be opened or closed and driven by a drive motor 4 is installed in the air inlet 3. When the drive motor 4 drives the air inlet control mechanism to open, the air inlet 3 opens, and outside air can enter the interior of the evaporator chamber 1 through the air inlet 3 on the left side of the evaporator chamber 1; when the drive motor 4 drives the air inlet control mechanism to close, the air inlet 3 closes, and outside air cannot enter the interior of the evaporator chamber 1 through the air inlet 3 on the left side of the evaporator chamber 1. The electric heater 5 is in contact with the surface of the evaporator 2 and is used to heat the surface of the evaporator 2. The tube end of the evaporator 2 and the power cord of the electric heater 5 respectively pass through the side wall of the evaporator chamber 1.

[0016] In this embodiment, the fan is a bladeless fan 6. The bladeless fan 6 is a conventional fan that uses a motor in its base to drive the fan blades and generate airflow. The airflow passes through the inner wall of the air ring 6.1 of the bladeless fan 6 and exits at high speed from the air outlet on the inner wall of the air ring 6.1 into the interior of the air ring 6.1 (i.e., the inner space of the air ring 6.1), and then exits from one axial end of the air ring 6.1. Because the airflow exits at high speed within the air ring 6.1, a negative pressure is created within the air ring 6.1, causing air outside the other axial end of the air ring 6.1 to enter the interior of the air ring 6.1, thus creating a continuous breeze. Therefore, the axial end of the air ring 6.1 from which the high-speed airflow exits is the outlet end of the air ring, and the other axial end of the air ring 6.1 is the inlet end.

[0017] In this embodiment, the air inlet end of the air ring 6.1 of the bladeless fan 6 is fixed to the open end face of the evaporator chamber 1, and the air inlet end of the bladeless fan 6 is coaxially connected with the open end of the evaporator chamber 1, thereby allowing the interior of the air ring 6.1 of the bladeless fan 6 to communicate with the interior of the evaporator chamber 1 through the open end of the evaporator chamber 1. When the bladeless fan 6 operates to the point where a negative pressure is formed inside the air ring 6.1, the air inside the evaporator chamber 1 will be drawn into the air ring 6.1. When the air inlet control mechanism of the air inlet 3 of the evaporator chamber 1 is closed, the evaporator chamber 1 is only connected to the interior of the air ring 6.1 through its open end. With the continuous operation of the bladeless fan, the air inside the evaporator chamber 1 will be drawn away, thereby forming a negative pressure inside the evaporator chamber 1. At this time, the entire evaporator 2 is in a negative pressure environment.

[0018] When the evaporator 2 is in a negative pressure environment, the condensate on the surface of the evaporator 2 is also in a negative pressure environment, and the boiling point of water will decrease in a negative pressure environment. At this time, the surface of the evaporator 2 is heated by the electric heater 5, so that the water on the surface of the evaporator 2 can be turned into water vapor without heating to an excessively high temperature. Under the action of the wind force generated by the bladeless fan 6, the water vapor will enter the air ring 6.1 from the right opening of the evaporator chamber 1 and finally be discharged to the outside from the air ring 6.1, thereby realizing the water removal function.

[0019] like Figure 2 As shown, this embodiment also includes a controller and a condensate detection device, with the condensate detection device electrically connected to the controller for signal transmission. The controller is electrically connected to the motor of the bladeless fan, the drive motor 4 of the air inlet 3, and the electric heater 5, respectively, forming a control system composed of the controller and the condensate detection device.

[0020] The condensate detection device is used to detect condensate on the surface of the evaporator 2 and transmits the detection data to the controller. The controller controls the motor of the bladeless fan 6, the drive motor 4 of the air inlet 3, and the electric heater 5 based on the received data to achieve the water removal function.

[0021] In this embodiment, the condensation detection device can employ a photoelectric sensor. The transmitter of the photoelectric sensor emits a light signal towards the surface of the evaporator 2, and the receiver of the photoelectric sensor receives the reflected light signal from the surface of the evaporator 2. The controller acquires the reflected light signal from the receiver and compares it with pre-stored reflected light signals from the evaporator surface when there is no condensation, thereby determining whether condensation exists in the evaporator 2. Furthermore, the controller compares the condensation data with a pre-set threshold to determine whether the condensation exceeds the preset threshold.

[0022] Alternatively, the condensate detection device can employ a weight sensor to collect the weight of the evaporator 2. The controller receives the data collected by the weight sensor and compares it with the pre-stored weight of the evaporator 2 when there is no condensate, thereby determining whether condensate is present in the evaporator 2. Furthermore, the controller compares the condensate data with a pre-set threshold to determine whether the condensate level exceeds the preset threshold.

[0023] When the controller determines that there is condensation and the condensation exceeds the preset threshold, the controller closes the air inlet of the evaporator chamber 1, keeps the bladeless fan 6 running, and starts the electric heater 5 to complete the water removal function.

[0024] In this embodiment, a water tank is provided in the evaporator chamber 1 at the lowest point of the evaporator 2. When the condensate does not exceed the preset threshold and the dewatering function is not activated, the water tank is used to collect the condensate falling from the surface of the evaporator 2.

[0025] like Figure 3 As shown, in this embodiment, the air intake control mechanism in the air inlet 3 of the evaporator chamber 1 is a louver structure. The rotating shafts of each blade 8 in the louver structure are connected by a synchronous belt pulley mechanism 7. The drive motor 4 is connected to one of the pulleys in the synchronous belt pulley mechanism 7. The drive motor 4 drives each blade 8 to open or close synchronously in the air inlet 3 through the synchronous belt pulley mechanism 7, thereby realizing the opening or closing of the air inlet 3. It should be noted that although this embodiment uses a louver structure as the air intake control mechanism for opening or closing the air inlet 3 of the evaporator chamber 1, other types of air intake control mechanisms, such as motor-driven air valves, should also be considered to fall within the protection scope of this utility model.

[0026] Meanwhile, although this embodiment is described with the right side of the evaporator chamber 1 being open and the left side being an air inlet, the technical solution of setting open and air inlets in other positions of the evaporator chamber 1 based on this embodiment should also be considered to fall within the protection scope of this utility model.

[0027] The preferred embodiments of this utility model have been described in detail above with reference to the accompanying drawings. These embodiments are merely descriptions of preferred embodiments and are not intended to limit the concept and scope of this utility model. The various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. Such combinations, as long as they do not violate the spirit of this utility model, should also be considered as part of this disclosure. To avoid unnecessary repetition, this utility model will not further describe all possible combinations.

[0028] This utility model is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this utility model and without departing from the design idea of ​​this utility model, all modifications and improvements made by those skilled in the art to the technical solution of this utility model should fall within the protection scope of this utility model. The technical content for which protection is sought in this utility model has been fully recorded in the claims.

Claims

1. An evaporator assembly in an air conditioner, comprising an evaporator and a fan configured thereon, characterized in that, It also includes an evaporator chamber, one side of which is open to form an opening. The evaporator is located inside the evaporator chamber, and the side wall of the evaporator chamber is provided with an air inlet. The air inlet can be opened or closed under the drive of a drive motor. The evaporator chamber is also provided with an electric heater for heating the surface of the evaporator. The fan is a bladeless fan, and the air inlet end of the bladeless fan's air ring is fixedly connected to the opening of the evaporator chamber, so that the air inlet end of the bladeless fan's air ring is connected to the evaporator chamber through the opening of the evaporator chamber.

2. The evaporator assembly in the air conditioner according to claim 1, characterized in that, It also includes a controller, which is electrically connected to the motor of the bladeless fan, the drive motor of the air inlet, and the electric heater.

3. The evaporator assembly in the air conditioner according to claim 2, characterized in that, It also includes a condensate detection device, which is used to detect condensate on the surface of the evaporator and is electrically connected to the controller for signal transmission.

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