WO2021057439A1 - Anti-condensation device for air conditioner and air conditioner - Google Patents

Abstract

The present invention relates to the field of air conditioners, and in particular provides an anti-condensation device for an air conditioner and an air conditioner. The present invention aims to solve the problems of complicated design, poor stability, difficulty in communication connection, and delayed real-time response of the existing anti-condensation device due to the introduction of a control unit. For this purpose, the air conditioner of the present invention comprises an air louver; the anti-condensation device comprises a power supply and an electric heating unit electrically connected to each other; and the electric heating unit is disposed on the air louver and is configured to be able to automatically start and stop according to the change of indoor air humidity. The solution of configuring the electric heating unit to be able to automatically start and stop according to the change of indoor air humidity is used in the present invention so as to make it unnecessary to control the electric heating unit using a control unit, such that the control unit can be removed, and when the indoor air humidity is high, the electric heating unit would start to work automatically to prevent condensation on the air louver.

Description

Anti-condensation device for air conditioner and air conditioner Technical field

The invention belongs to the technical field of air conditioners, and in particular provides an anti-condensation device for an air conditioner and an air conditioner.

Background technique

With the improvement of people's living standards, air conditioners have become an indispensable product in household appliances, especially in summer, whether it is dehumidification or cooling, make people's living environment more comfortable.

However, when the air conditioner is in dehumidification and cooling operation, because the air outlet temperature of the air conditioner is lower than the dew point temperature of the humid air in the room, condensation water droplets will appear on the air conditioner's air swing leaf. In severe cases, the water droplets will be blown out by the air conditioner. Causes the air conditioner to leak or blow water, which affects the normal use of users. The conventional solution is to install a heating unit at the position of the wind swing leaf, and control the heating of the heating unit through the control center of the air conditioner to remove water. However, the heating unit needs to communicate and electrically connect with the control center. The electrical connection can be supplied by the nearby circuit of the wind and swing leaves, but the communication connection also needs to be connected to the control center of the air conditioner, and the control center of the air conditioner is often far away The air outlet is located far away and it is inconvenient to connect. Moreover, because the control center needs to collect indoor air humidity first, then process it, and finally send control instructions, the process is cumbersome, and the control center must be introduced, which increases the complexity and stability of the anti-condensation device design. Due to the cumbersome communication process, the anti-condensation device cannot respond quickly to the indoor environment.

Correspondingly, there is a need in the art for a new anti-condensation device and air conditioner for air conditioners to solve the problem of complicated design, poor stability, difficult communication connection, and insufficient real-time response after the existing anti-condensation device is introduced into the control unit. problem.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, that is, to solve the problems of complicated design, poor stability, difficult communication connection and insufficient real-time response after the introduction of the control unit of the existing anti-condensation device, the present invention provides a method for air conditioning The air conditioner includes an air outlet swing blade, the anti-condensation device includes a power supply and an electric heating unit that are electrically connected to each other, the electric heating unit is arranged on the air outlet swing blade, and It is set to be able to start and stop automatically according to the change of indoor air humidity.

In the above-mentioned preferred technical solution of the anti-condensation device for an air conditioner, the electric heating unit is a conductive heating element arranged at intervals, and the conductive heating element is arranged on the outer surface of the air outlet swing blade.

In the above-mentioned preferred technical solution of the anti-condensation device for an air conditioner, the conductive heating element is a strip-shaped conductive coating.

In the above-mentioned preferred technical solution of the anti-condensation device for an air conditioner, the conductive heating element is a strip-shaped metal plate.

In the above-mentioned preferred technical solution of the anti-condensation device for an air conditioner, the strip-shaped conductive coating is arranged along the length direction of the air outlet swing blade; and/or

The power supply is a low-voltage DC power supply.

In the above-mentioned preferred technical solution of the anti-condensation device for an air conditioner, the strip-shaped metal plates are arranged along the length direction of the air outlet swing blade; and/or

The power supply is a low-voltage DC power supply.

In the above-mentioned preferred technical solution of the anti-condensation device for an air conditioner, the electric heating unit includes a humidity sensitive resistor and a conductive heating plate, and the conductive heating plate is arranged on the outer surface and the inner surface of the air outlet swing blade. Or in the middle part, the humidity sensitive resistor is arranged on the circuit between the power supply and the conductive heating plate, and its resistance decreases as the indoor air humidity increases.

In the above-mentioned preferred technical solution of the anti-condensation device for an air conditioner, the anti-condensation device further includes a circuit switch, and the circuit switch is arranged on the circuit between the power supply and the electric heating unit.

In the above-mentioned preferred technical solution of the anti-condensation device for an air conditioner, the anti-condensation device further includes a circuit overload protection device, and the circuit overload protection device is disposed between the power supply and the electric heating unit. On the circuit.

The present invention also provides an air conditioner, which includes the anti-condensation device according to any one of the above technical solutions.

Those skilled in the art can understand that, in the technical solution of the present invention, the air conditioner includes an outlet swing blade, and the anti-condensation device includes a power supply and an electric heating unit that are electrically connected to each other, and the electric heating unit is arranged on the outlet swing blade. And it is set to be able to start and stop automatically according to the change of indoor air humidity.

By setting the electric heating unit to automatically start and stop according to the change of indoor air humidity, the present invention avoids the solution that the electric heating unit needs to be controlled by the control unit, and then cancels the control unit. When the indoor air humidity is relatively high, The electric heating unit will automatically turn on to avoid condensation on the wind swing leaf.

The main innovation of the present invention is that although the structure of the present invention appears to be simple, when facing the problem of removing condensation, those skilled in the art usually think of a solution in which the heating unit cooperates with the control unit, and this solution is also in actual use. This function can indeed be achieved. However, in the actual production process, due to the existence of the control unit, the production process is complicated and the production cost is increased. In order to solve this problem, those skilled in the art usually want to simplify the circuit and how to connect more optimally to reduce the complexity. degree. From another perspective, the present invention, through the structural design of the present invention, cleverly removes the structure of the control unit, greatly reduces the production cost and production process, simplifies the design, and because there is no control unit, there is no control The possibility of unit failure reduces the failure rate, improves the stability, and avoids the communication connection between the heating unit and the control unit. The anti-condensation device of the present invention is adjusted based on real-time humidity feedback, which is more sensitive and reacts more quickly than the adjustment of the control unit. It is extremely difficult to discover the problem itself, and it is also very clever to solve the problem. The present invention achieves a lower cost, a more simplified design, and a better effect.

Description of the drawings

The anti-condensation device for an air conditioner and the air conditioner of the present invention will be described below with reference to the drawings. In the attached picture:

Figure 1 is the first embodiment of the anti-condensation device for an air conditioner of the present invention;

Figure 2 is the second embodiment of the anti-condensation device for an air conditioner of the present invention.

List of reference signs:

1. Power supply; 2. Electric heating unit; 21. Conductive heating element; 22. Humidity sensitive resistor; 23. Conductive heating plate; 3. Circuit switch; 4. Circuit overload protection device; 5. Wind oscillating blade; 51. Rotating shaft .

detailed description

The preferred embodiments of the present invention will be described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. For example, although the description takes the conductive heating element as a strip-shaped conductive coating as an example for description, the present invention can obviously adopt other conductive heating elements, such as strip metal plates, etc., as long as it can conduct electricity and heat, and It can be installed on the air outlet swing leaves at intervals.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The term of the indicated direction or positional relationship is based on the direction or positional relationship shown in the drawings, which is only for ease of description, and does not indicate or imply that the device or element must have a specific orientation, be configured and operated in a specific orientation Therefore, it cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

In addition, it should be noted that, in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed or fixed. It is a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those skilled in the art, the specific meaning of the above-mentioned terms in the present invention can be understood according to specific circumstances.

Example one

First, referring to FIG. 1, the anti-condensation device of the present invention will be described. Among them, FIG. 1 is the first embodiment of the anti-condensation device for an air conditioner according to the present invention.

As shown in Figure 1, in order to solve the problems of complicated design, poor stability, difficult communication connection, and insufficient real-time response after the existing anti-condensation device is introduced into the control unit, the air conditioner includes the air outlet swing blade 5 and the air outlet swing blade 5. The wind is oscillated through the rotating shaft 51. The anti-condensation device for an air conditioner of the present invention includes a power supply 1 and an electric heating unit 2 that are electrically connected to each other. The electric heating unit 2 is arranged on the air outlet swing blade 5 and configured to be able to Automatic start and stop according to changes in indoor air humidity. Preferably, in one embodiment of the present invention, the electric heating units 2 are conductive heating elements 21 arranged at intervals, and the conductive heating elements 21 are arranged on the outer surface of the air outlet swing blade 5 and arranged at intervals. The method is to provide a long and elongated conductive heating element 21 on the upper and lower sides of the air outlet swing blade 5, and provide a plurality of shorter conductive heating elements 21 in the middle part. Of course, the placement position of the conductive heating element 21 can also be in other forms, such as the same long and long conductive heating element 21 and uniformly arranged horizontally, etc., which can be reasonably improved according to the actual production convenience and cost. .

The advantage of the above setting method is that when the indoor environment is relatively humid, during the cooling process, the air outlet swing blade 5 is blown by cold wind for a long time and the temperature is low, and condensation will form on its outer surface, and the air outlet of the present invention The outer surface of the swing blade 5 is provided with an anti-condensation device. When condensation is formed, the spaced conductive heating element 21 will form a closed circuit, generate heat, and increase the temperature of the outer surface of the wind swing blade 5, which will reduce the condensation. The dew evaporates, and when there is no more dew, the circuit is in a disconnected state again, and the wind swing blade 5 will not be heated. The present invention cleverly arranges the anti-condensation device shown in Figure 1 according to the particularity of the technical problem to be solved, that is, the condensation is conductive. As long as the condensation is formed, the electric heating unit 2 can start to work. When the condensation is evaporated, and when there is no condensation, the electric heating device is in a disconnected state, and the control unit does not need to be closed. The reaction is rapid and the structure is simple.

Hereinafter, referring to Fig. 1 further, the anti-condensation device of the present invention will be described in detail.

As shown in FIG. 1, in a possible implementation, the conductive heating element 21 is a strip-shaped conductive coating, which is arranged along the length of the air outlet swing blade 5, and the power supply 1 is a low-voltage DC power supply. The anti-condensation device may also include a circuit switch 3 and a circuit overload protection device 4, both of which are provided in the loop of the circuit. Among them, the circuit switch 3 can be a relay, of course, it can also be a manual box switch, etc., and the circuit overload protection device 4 can be a fuse, such as a fuse, etc., of course, it can also be an air switch.

The advantage of the above setting method is that the conductive coating is used. Because the coating thickness is very thin, the wind swing blade 5 can still maintain the conventional design without changing the design to adapt to the embedded conductive metal plate and other structures, and it is easy to implement. The low cost also prevents the overall weight of the air conditioner from increasing. The advantage of the strip-shaped conductive coating arranged along the length of the wind swing blade 5 is that after condensation occurs, due to gravity, it tends to flow from top to bottom. The strip-shaped conductive coating of the present invention often flows from top to bottom due to gravity. The layer is exactly perpendicular to the direction of water flow, which makes it easier to form a conductive path, so that it can react to condensation more quickly and remove it. The power supply 1 is selected as a low-voltage DC power supply. Firstly, the low voltage ensures the safety of users. Secondly, in order to make the anti-condensation device of the present invention do not require external power supply, it can also use a conventional battery as a power supply (the conventional battery is a low-voltage DC power supply) Therefore, there is no need to introduce the power supply 1 from the inside of the air conditioner to power the anti-condensation device separately, so that the anti-condensation device can be independent of the circuit of the air conditioner, and can be directly fixed on the back of the air outlet swing blade 5 and other positions. Just replace the battery. The anti-condensation device does not require the power supply 1 to be connected, nor the control unit to be connected, which is more convenient for separate processing, and also facilitates the assembly of the air conditioner, and saves costs. Under heating conditions, there is no condensation in the air conditioner. The addition of a circuit switch 3 can completely turn off the anti-condensation device to prevent other reasons from causing leakage. The additional circuit overload protection device 4 can prevent the anti-condensation device from causing excessive current due to other special reasons, and then causing electric injury to the user. When the circuit is too abnormal, the circuit can be cut off to ensure the safety of the user's life.

Example two

Next, referring to FIG. 2, the second embodiment of the anti-condensation device for an air conditioner of the present invention will be introduced. Among them, FIG. 2 is the second embodiment of the anti-condensation device for an air conditioner of the present invention.

As shown in Figure 2, the electric heating unit 2 includes a humidity sensitive resistor 22 and a conductive heating plate 23. The conductive heating plate 23 is arranged on the outer surface of the air outlet swing blade 5. Of course, it can also be arranged on the inner surface or the middle part of the humidity sensitive resistor. 22 is arranged on the circuit between the power supply 1 and the conductive heating plate 23, and its resistance value decreases as the indoor air humidity increases.

Most of the design of the second embodiment is the same as that of the first embodiment. The difference is that the electric heating unit 2 in the second embodiment no longer relies on condensation to indirectly cause the circuit to turn on, but directly uses the change in air humidity to turn on the circuit. When the indoor environment is humid, the resistance of the humidity sensitive resistor 22 is reduced, so that the current in the circuit can be increased accordingly, and the conductive heating plate can be heated to remove the condensation on the wind swing leaf 5; when the indoor environment is dry At this time, the resistance value of the humidity sensitive resistor 22 is extremely large at this time, which is equivalent to forming an open circuit, so that the current is extremely low and can be ignored, so as to achieve the purpose of disconnecting the circuit. By reasonably selecting the model of the humidity sensitive resistor 22, that is The anti-condensation device can adapt to indoor changes and achieve the desired purpose. In addition, since the conductive heating plate does not need to be switched on and off by condensation, it can be set at other positions of the air outlet swing blade 5, such as the outer surface, inner surface or the middle hollow part of the air outlet swing blade 5, etc. , As long as it can provide heat, dry the condensation.

To sum up, the present invention avoids the solution that the electric heating unit 2 needs to be controlled by a control unit by setting the electric heating unit 2 to be able to automatically start and stop according to changes in indoor air humidity, thereby eliminating the control unit. If the indoor air humidity is relatively high, the electric heating unit 2 will be automatically turned on to avoid condensation on the wind swing leaf 5.

It should be noted that the above-mentioned embodiments are only used to illustrate the principles of the present invention, and are not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above-mentioned structure to facilitate The present invention can be applied to more specific application scenarios.

For example, in an alternative embodiment, of course, the strip-shaped conductive coating may not be arranged according to the length direction of the air outlet swing blade 5, or may be 30° to the length direction of the air outlet swing blade 5. , 45°, 60°, 90° and other angles of oblique arrangement, or other corrugated arrangements, as long as it can conduct electricity after condensation occurs, and the power is cut off after condensation evaporates. These do not deviate from the principle of the present invention. Therefore, they will all fall into the protection scope of the present invention.

For example, in another alternative embodiment, the conductive heating element 21 can of course also be a strip-shaped metal plate, and the strip-shaped metal plate can be arranged to be the same as the strip-shaped conductive coating, because the two are based on the same The principles can therefore be interchanged, or mixed, etc., which do not deviate from the principles of the present invention, and therefore all fall within the protection scope of the present invention.

For example, in another alternative embodiment, the power supply 1 can of course also be a low-voltage AC power supply, or a conventional power supply can be matched with other safety measures or with a circuit that reduces the voltage. Since the circuit is exposed, as long as it can The ways to ensure safety can be applied to the present invention. The present invention only symbolically enumerates the direct use of DC low-voltage power supply to ensure safety. Of course, it can also be other conventional circuit protection measures, which do not deviate from the principle of the present invention. Therefore, they will all fall into the protection scope of the present invention.

In addition, the present invention also provides an air conditioner, which includes the anti-condensation device described in any of the above embodiments.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. An anti-condensation device for an air conditioner, the air conditioner comprising an air outlet swing blade, characterized in that the anti-condensation device includes a power supply and an electric heating unit that are electrically connected to each other, and the electric heating unit is arranged at The air outlet swing leaf is set to be able to start and stop automatically according to the change of indoor air humidity.
2. The anti-condensation device for an air conditioner according to claim 1, wherein the electric heating unit is a conductive heating element arranged at intervals, and the conductive heating element is arranged on the outer surface of the air outlet swing blade .
3. The anti-condensation device for an air conditioner according to claim 2, wherein the conductive heating element is a strip-shaped conductive coating.
4. The anti-condensation device for an air conditioner according to claim 2, wherein the conductive heating element is a strip-shaped metal plate.
5. The anti-condensation device for an air conditioner according to claim 3, wherein the strip-shaped conductive coating is arranged along the length direction of the air outlet swing blade; and/or

   The power supply is a low-voltage DC power supply.
6. The anti-condensation device for an air conditioner according to claim 4, wherein the strip-shaped metal plates are arranged along the length direction of the air outlet swing blade; and/or

   The power supply is a low-voltage DC power supply.
7. The anti-condensation device for an air conditioner according to claim 1, wherein the electric heating unit includes a humidity sensitive resistor and a conductive heating plate, and the conductive heating plate is arranged outside the air outlet swing blade. On the surface, the inner surface or the middle part, the humidity sensitive resistor is arranged on the circuit between the power supply and the conductive heating plate, and its resistance value decreases as the indoor air humidity increases.
8. The anti-condensation device for an air conditioner according to claim 1, wherein the anti-condensation device further comprises a circuit switch, and the circuit switch is arranged between the power supply and the electric heating unit. On the circuit.
9. The anti-condensation device for an air conditioner according to claim 1, wherein the anti-condensation device further comprises a circuit overload protection device, and the circuit overload protection device is provided on the power supply and the electric heater. On the circuit between the units.
10. An air conditioner, characterized in that the air conditioner comprises the anti-condensation device according to any one of claims 1 to 9.

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