CN104676777B - Air-conditioner outdoor unit - Google Patents

Abstract

The invention discloses a kind of air-conditioner outdoor unit to include：Body, the body is interior to be provided with heat exchanger and aerofoil fan；Detection means, the detection means are located on the body with detection parameters corresponding to measuring ambient wind according to the wind-force size of outdoor environment；And control device, the control device are connected with the detection means and the aerofoil fan to control the rotating speed of the aerofoil fan according to the detection parameters respectively.Air-conditioner outdoor unit energy consumption according to embodiments of the present invention is low, and heat exchange efficiency is high, service life length.

Description

Air conditioner outdoor unit

technical field

The invention relates to the field of home appliances, in particular to an outdoor air conditioner.

Background technique

The outdoor unit of the split air conditioner generally uses an axial fan to perform forced heat exchange on the heat exchanger. In strong convective weather such as strong wind, the load on the outdoor fan will be increased, resulting in increased heat generation and shortened service life of the outdoor fan.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention needs to provide an air conditioner outdoor unit, which has low energy consumption, high heat exchange efficiency and long service life.

The outdoor unit of an air conditioner according to an embodiment of the present invention includes: a body, in which a heat exchanger and an axial fan are arranged; a detection device, which is installed on the body to measure the ambient temperature according to the wind force of the outdoor environment. detection parameters corresponding to the wind force; and a control device, the control device is respectively connected with the detection device and the axial flow fan to control the rotational speed of the axial flow fan according to the detection parameters.

According to the air conditioner outdoor unit of the embodiment of the present invention, by setting the detection device, the detection device can be used to detect the corresponding detection value according to the ambient wind force, and the rotation speed of the axial flow fan can be further controlled through the detection value, thereby The rotational speed of the axial flow fan can be changed accordingly according to the magnitude of the ambient wind force, thereby reducing energy consumption, improving energy efficiency, improving heat exchange effect, and prolonging the service life of the axial flow fan.

In addition, the air conditioner outdoor unit according to the present invention may also have the following additional technical features:

According to an embodiment of the present invention, the detection device is a wind power generation device, and the control device controls the rotational speed of the axial flow fan according to the current value fed back by the wind power generation device.

According to an embodiment of the present invention, a first predetermined current value and a second predetermined current value are preset in the control device, and the second predetermined current value is greater than the first predetermined current value, wherein when the wind power When the current value fed back by the device is greater than the first predetermined current value, the control device controls the axial flow fan to decelerate, and when the current value fed back by the wind power generation device is greater than the second predetermined current value, the control device controls The axial flow fan is shut down.

According to an embodiment of the present invention, the first predetermined current value is 2 amperes, and the second predetermined current value is 3 amperes.

According to an embodiment of the present invention, the detection device is a fan device, and the control device controls the speed of the axial flow fan according to the fan speed value fed back by the fan device.

According to an embodiment of the present invention, the control device is preset with a first predetermined wind speed value and a second predetermined wind speed value, and the second predetermined wind speed value is greater than the first predetermined wind speed value, wherein when the fan device When the feedback fan speed value is greater than the first predetermined wind speed value, the control device controls the axial flow fan to decelerate, and when the fan speed value fed back by the fan device is greater than the second wind speed predetermined value, the control device controls The axial flow fan is shut down.

According to an embodiment of the present invention, the first predetermined wind speed value is 500 revolutions per minute, and the second predetermined wind speed value is 700 revolutions per minute.

According to an embodiment of the present invention, the control device collects the detection value of the detection device every predetermined time interval. According to an embodiment of the present invention, the predetermined time is 3 minutes.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

FIG. 1 is a schematic structural view of an outdoor unit of an air conditioner according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the connection of the detection device, the control device and the axial flow fan of the outdoor unit of the air conditioner shown in Fig. 1;

Fig. 3 is a flowchart of a control method of the outdoor unit of the air conditioner shown in Fig. 1 .

Explanation of reference signs:

Air conditioner outdoor unit 100;

Body 1; Axial fan 11;

Detection device 2;

control device 3.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integral connection; it may be mechanical connection or electrical connection; it may be direct connection or indirect connection through an intermediary, and it may be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

The following describes an air conditioner outdoor unit 100 according to an embodiment of the present invention with reference to FIG. 1 . As shown in FIG. 1 , an air conditioner outdoor unit 100 according to an embodiment of the present invention includes: a body 1 , a detection device 2 and a control device 3 .

The body 1 is provided with a heat exchanger and an axial flow fan 11. The position of the axial flow fan 11 is opposite to that of the heat exchanger. When the axial flow fan 11 rotates, it is used to drive the air, thereby exchanging forced air to the heat exchanger. . The detection device 2 is arranged on the body 1 to measure the detection parameters corresponding to the ambient wind force according to the wind force of the outdoor environment. It can be directly proportional or inversely proportional. The control device 3 is respectively connected with the detection device 2 and the axial fan 11 to control the speed of the axial fan 11 according to the detection parameters (as shown in Figure 2, the control device 3 is electrically connected with the detection device 2 and the axial fan 11 respectively) . That is to say, the control device 3 receives the detection parameter measured by the detection device 2, compares the detection parameter with the preset parameter, and sends an instruction to change the rotational speed to the axial flow fan 11 according to the comparison result, such as speed up, decelerate, stop (that is, the speed is zero), start and other commands. Optionally, the user can control whether the detection device 2 works through a remote controller.

In particular, the description below will continue with an example in which the value of the detection parameter is proportional to the wind force, that is, the larger the value of the detection parameter, the greater the wind force in the environment. For example, according to the embodiment of the present invention, the control device 3 of the air conditioner outdoor unit 100 is preset with a corresponding predetermined parameter value. When the detection parameter measured by the detection device 2 is greater than the predetermined parameter value, it means that the ambient wind force is greater than the predetermined wind value. Of course, those skilled in the art can understand that the numerical value of the detection parameter is proportional to the wind force is only for the purpose of illustration, and does not limit the protection scope of the present invention.

What needs to be explained here is that the air conditioner outdoor unit 100 is installed in an outdoor environment. When encountering a strong wind, natural wind blows to the air conditioner outdoor unit 100 , which will affect the rotation of the axial flow fan 11 . Especially when the air outlet direction of the axial flow fan 11 of the air conditioner outdoor unit 100 is opposite to the wind direction of the natural wind, the strong wind will have a greater impact on the rotation of the axial flow fan 11, which will hinder the axial flow fan 11 from affecting the heat exchanger. The forced heat exchange effect will increase the energy required for the axial flow fan 11 to rotate, and the calorific value of the axial flow fan 11 will greatly increase, that is to say, this will increase energy consumption, reduce the heat exchange effect, and shorten the service life of the product. Therefore, when the ambient wind force is greater than the predetermined wind force value, the control device 3 can control the axial flow fan 11 to slow down, so that the influence of natural wind on the rotation of the axial flow fan 11 is greatly reduced.

To sum up, according to the air conditioner outdoor unit 100 of the embodiment of the present invention, by setting the detection device 2, the detection device 2 can be used to detect the corresponding detection value according to the magnitude of the ambient wind force, and further control the axial flow through the detection value. The rotational speed of the fan 11, so that the rotational speed of the axial flow fan 11 can be changed accordingly according to the size of the ambient wind force, thereby reducing energy consumption, improving energy efficiency, and improving the heat exchange effect, and extending the working life of the axial flow fan 11. service life.

It can be understood that when the ambient wind reaches a predetermined limit value, the axial flow fan 11 can be controlled to stop, so that the outdoor heat exchanger can completely utilize natural wind for natural convection heat exchange, which can reduce power consumption and improve energy efficiency. Of course, it can also be understood that when the detection parameter measured by the detection device 2 is less than the predetermined parameter, the control device 3 can control the axial flow fan 11 to increase the speed or start it up, so as to speed up the heat exchange. As shown in FIG. 3 , the flow chart of the control method of the air conditioner outdoor unit 100 according to the embodiment of the present invention is shown.

In some embodiments of the present invention, in order to avoid the frequent start and stop of the axial flow fan 11 or the frequent change of rotation speed, the control device 3 can be made to collect the detection values of the detection device 2 every predetermined time, that is to say, the detection device 2 can be Perform the next detection action after a predetermined time or upload the detection parameters to the control device 3 after a predetermined time interval, so that the control device 3 can receive the detection parameters of the detection device 2 after a predetermined time interval, so that the control device 3 After a predetermined time interval, the rotation speed change command is issued to the axial flow fan 11 , thereby avoiding problems such as high energy consumption and shortened service life caused by frequent start and stop of the axial flow fan 11 or frequent change of rotation speed. In a specific example of the present invention, the predetermined time is 3 minutes, that is to say, the detection device 2 may perform the next detection action every 3 minutes or may upload the detection parameters to the control device after an interval of 3 minutes 3.

Of course, those skilled in the art can understand that, in order to avoid the frequent start and stop of the axial flow fan 11 or the frequent change of speed, the program in the control device 3 can also be set, and the control device 3 can receive the detection parameters of the detection device 2 After the feedback, the speed-up or deceleration command is issued to the axial fan 11 after a predetermined time delay.

In a specific example of the present invention, the detection device 2 is a wind power generation device, and the control device 3 controls the rotational speed of the axial flow fan 11 according to the current value fed back by the wind power generation device. It can be understood that the working principle of the wind turbine generator is similar to that of the wind generator, that is, the wind generator can convert mechanical energy into electrical energy according to the magnitude of the wind force in the environment, and the control device 3 can By determining the magnitude of the ambient wind force, the rotational speed of the axial flow fan 11 can be controlled according to the magnitude of the current.

Specifically, the control device 3 may be preset with a first current predetermined value and a second current predetermined value, the second current predetermined value is greater than the first current predetermined value, wherein when the current value fed back by the wind power generation device is greater than the first When the current value is predetermined, the control device 3 controls the axial flow fan 11 to decelerate; when the current value fed back by the wind power generation device is greater than the second predetermined current value, the control device 3 controls the axial flow fan 11 to stop. That is to say, when the current fed back by the wind power generation device is greater than the first predetermined current value, it means that the ambient wind force is greater than the preset ambient wind force value. At this time, the axial flow fan 11 can be controlled to slow down, so as to slow down the impact of the strong wind on the axial flow fan 11. . Furthermore, when the current fed back by the wind power generation device is greater than the limit value (i.e. the second predetermined current value), it means that the ambient wind force is greater than the limit wind force value. At this time, the axial flow fan 11 can be controlled to stop, so as to further slow down the impact of strong wind on the axial flow fan 11. At this time, the heat exchanger can completely use the natural wind for natural heat exchange, which can reduce power consumption and increase energy consumption. In an example of the present invention, the first predetermined current value is 2 amperes, and the second predetermined current value is 3 amperes. That is to say, when the current fed back by the wind power generator is greater than 2 amperes, the axial fan 11 can be controlled to decelerate, and when the current fed back by the wind power generator is greater than 3 amperes, the axial fan 11 can be controlled to stop.

It can be understood that when the current value fed back by the wind power generator is less than the second predetermined current value, the axial flow fan 11 can be controlled to turn on, and when the current value is less than the first current predetermined value, the axial flow fan 11 can be controlled to increase speed. It can also be understood that the wind power generation device can detect the current value after a predetermined time interval or upload it to the control device 3 after a predetermined time interval, so as to avoid frequent start-stop or frequent change of the rotational speed of the axial flow fan.

Of course, it can be understood that this is only described as an example, that is, more predetermined current values can be preset in the control device 3, and the current value fed back by the wind power generation device is compared with the multiple predetermined current values, so that the The rotational speed control of the axial flow fan 11 is multi-level control, thereby making the control of the axial flow fan 11 more precise.

In another specific example of the present invention, the detection device 2 is a fan device, and the control device 3 controls the speed of the axial fan 11 according to the fan speed value fed back by the fan device. It can be understood that when there is natural wind, the natural wind can drive the fan device to rotate, and when the wind is stronger, the speed of the fan device is faster, and the fan speed value is larger.

Specifically, a first predetermined wind speed value and a second predetermined wind speed value may be preset in the control device 3, and the second predetermined wind speed value is greater than the first predetermined wind speed value. The axial flow fan 11 is controlled to decelerate, and the control device 3 controls the axial flow fan 11 to stop when the fan speed value fed back by the fan device is greater than the second predetermined wind speed value. That is to say, when the fan speed value fed back by the fan device is greater than the first predetermined wind speed value, it means that the ambient wind force is greater than the preset ambient wind force value. At this time, the axial flow fan 11 can be controlled to slow down, so as to slow down the impact of the strong wind on the axial flow fan 11. influences. Further, when the fan speed value fed back by the fan device is greater than the limit value (i.e. the second predetermined current value), it means that the ambient wind force is greater than the limit wind force value. At this time, the axial flow fan 11 can be controlled to stop to further slow down the impact of strong wind on the axial flow fan. 11, and at this time the heat exchanger can completely use the natural wind for natural heat exchange, which can reduce power consumption and increase energy consumption. In an example of the present invention, the first predetermined wind speed value is 500 revolutions per minute, and the second predetermined wind speed value is 700 revolutions per minute. That is to say, when the fan speed value fed back by the fan device is greater than 500 rpm, the axial fan 11 can be controlled to decelerate, and when the fan speed value fed back by the fan device is greater than 700 rpm, the axial fan 11 can be controlled shutdown.

It can be understood that when the fan speed value fed back by the fan device is less than the second predetermined wind speed value, the axial flow fan 11 can be controlled to turn on, and when the fan speed value is smaller than the first wind speed predetermined value, the axial flow fan 11 can be controlled to increase the speed. It can also be understood that the fan device can detect the next fan speed value after a predetermined time interval or upload it to the control device 3 after a predetermined time interval, so as to avoid frequent start and stop of the axial flow fan.

Of course, it can be understood that this is only described as an example, that is, more predetermined wind speed values can be preset in the control device 3, and the fan speed value fed back by the fan device is compared with multiple predetermined wind speed values, and then can be used. The rotational speed control of the axial flow fan 11 is multi-level control, thereby making the control of the axial flow fan 11 more precise.

Other configurations of the outdoor unit according to the embodiment of the present invention, such as the structure of the heat exchanger, the structure of the axial flow fan 11, etc., as well as operations are known to those skilled in the art and will not be described in detail here.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (4)

1. An air conditioner outdoor unit, characterized in that it comprises: A body, in which a heat exchanger and an axial fan are arranged; A detection device, the detection device is arranged on the body to measure the detection parameters corresponding to the wind force of the environment according to the wind force of the outdoor environment; and a control device, the control device is respectively connected with the detection device and the axial flow fan to control the speed of the axial flow fan according to the detection parameters, Wherein the detection device is a wind power generation device, the control device controls the rotational speed of the axial flow fan according to the current value fed back by the wind power generation device, and the first predetermined current value and the second current value are preset in the control device A predetermined value, the second predetermined current value is greater than the first predetermined current value, wherein when the current value fed back by the wind power generation device is greater than the first predetermined current value, the control device controls the axial flow fan to decelerate , when the current value fed back by the wind power generation device is greater than the second predetermined current value, the control device controls the axial flow fan to stop. 2 . The air conditioner outdoor unit according to claim 1 , wherein the first predetermined current value is 2 amperes, and the second predetermined current value is 3 amperes. 3. The outdoor unit of the air conditioner according to claim 1, wherein the control device collects the detection value of the detection device every predetermined time interval. 4. The air conditioner outdoor unit according to claim 3, wherein the predetermined time is 3 minutes.