CN1273777C - Indoor outdoor air intaking movable air conditioner - Google Patents

Abstract

The invention discloses a portable air conditioner with indoor and outdoor air intake, aiming to provide a portable air conditioner which can select to introduce wind from indoor or outdoor, or indoor and outdoor simultaneously into the refrigerating cycle system of the air conditioner. The present invention mainly consists of a movable indoor unit with a refrigeration cycle system, an evaporator air duct system, a condenser air duct system, an indoor air intake mechanism of the condenser air duct system, an outdoor air intake mechanism, and an indoor/outdoor air intake selection mechanism. and the exhaust pipe, wherein the indoor/outdoor air intake selection mechanism can control the air intake volume of the indoor air intake system and the outdoor air intake system.

Description

Portable air conditioner with indoor and outdoor air intake

technical field

The invention relates to the technical field of air conditioning, in particular to a portable air conditioner with indoor and outdoor air intake.

Background technique

The mobile air conditioners currently on the market are mainly single-duct mobile air conditioners. It inhales indoor air and exchanges heat with two devices: one way exchanges heat with the evaporator and then sends it back to the room through the air duct system; The system uses room air to exchange heat with the condenser, so it can still work when the outdoor ambient temperature is high. But exhausting the indoor air loses the cooling capacity, and the negative pressure is formed in the room so that the outdoor air with higher temperature enters the room, which increases the load of the air conditioner and reduces the efficiency of the air conditioner.

A kind of double-duct portable air conditioner recently, its indoor air handling unit and outdoor air handling unit are two sets of systems independent of each other. The indoor air duct system sucks in indoor air and exchanges heat with the evaporator to cool down, and then sends it back to the room through the air duct system. The outdoor air duct system sucks in outdoor air through the outdoor air inlet pipe, exchanges heat with the condenser, and then discharges it outdoors through the exhaust pipe. This system avoids the loss of cooling capacity due to the heat exchange between the indoor air and the condenser, but the heat exchange efficiency of the heat exchanger is reduced by using the outdoor air with a higher temperature to exchange heat with the condenser, which will increase the power consumption of the air conditioner and reduce the cooling capacity. Reduced efficiency. When the outdoor ambient temperature is very high, the air conditioner will not work normally due to overheating protection. In addition, the indoor air is in a closed environment, and the lack of outdoor fresh air will reduce the indoor air quality.

Contents of the invention

The object of the present invention is to provide a portable air conditioner that can choose to introduce wind from indoors or outdoors or indoors and outdoors simultaneously into the refrigerating cycle system of the air conditioner. The present invention is mainly composed of a small movable indoor unit, an evaporator air duct system and a condenser air duct system:

1). The indoor unit is a small movable box, including a refrigeration cycle system composed of a compressor, a condenser, a throttling component, an evaporator, a water tank and a control system.

2). The evaporator air duct system includes indoor motors, fans, air ducts and indoor air inlet/outlet devices.

3). Condenser air duct system consists of outdoor motor, fan, air duct, indoor air inlet mechanism, outdoor air inlet mechanism, indoor/outdoor air inlet selection mechanism and exhaust pipe.

in:

One end of the air inlet of the outdoor air inlet mechanism communicates with the outdoor air, and one end of the air outlet is connected to the air inlet of the condenser through a joint, and the effect is to introduce outdoor air into the air inlet of the condenser. Therefore, the outdoor air inlet mechanism can be a telescopic air duct, one end of which communicates with the outdoor air, and the other end is connected to the air inlet of the condenser through a joint.

The indoor air inlet mechanism is an independent indoor air inlet device, or a mechanism that acts as an indoor air inlet on other components. One end of the air inlet is connected to the indoor air, and the other end of the air outlet is connected to the air inlet of the condenser. Air is introduced into the air inlet of the condenser. Therefore, the indoor air inlet mechanism can be a group of air inlet holes or air grilles arranged on the indoor unit; it can also be a group of air inlet holes or air grilles arranged on the retractable air duct of the outdoor air inlet mechanism; An air duct, one end of the air duct communicates with the indoor air, and the other end communicates with the air inlet of the condenser.

The indoor/outdoor air inlet selection mechanism is a control device that controls the opening or closing of the air inlet of the indoor air inlet mechanism and the outdoor air inlet mechanism. It can manually or automatically open or close the indoor air inlet mechanism or the outdoor air inlet mechanism according to the needs of use. Realize the opening/closing of the indoor air intake mechanism and the opening/closing of the outdoor air intake mechanism, and can also control the proportion of fresh air by adjusting the opening of the control device when the indoor/outdoor air intake is at the same time. The indoor/outdoor air inlet selection mechanism can be implemented in the following two ways:

1. It is composed of the air inlet of the indoor air inlet mechanism and the outdoor air inlet mechanism, and the damper cover that can cover the air inlet and the knob that controls the movement of the damper cover;

2. It is composed of valves arranged at the air inlets of the indoor air inlet mechanism and the outdoor air inlet mechanism, and a temperature sensor arranged on the condenser or/and in the air outlet passage of the condenser, which can control the opening/closing of the valves.

The exhaust pipe is a telescopic air pipe, one end of which is connected to the outdoor side through a joint, and the other end is connected to the air outlet of the condenser through a joint, so that the air outlet of the condenser can be led to the outside.

The telescopic air duct of the outdoor air intake mechanism can be sleeved in the exhaust duct, or it can be another independent air intake duct.

The indoor air handling unit and the outdoor air handling unit of this mobile air conditioner are not independent of each other. It can select the air intake type of the condenser by manually or automatically controlling the indoor/outdoor air intake selection mechanism of the condenser air duct system according to the needs of the user or the judgment of the operating conditions:

1. Only indoor air introduced by the indoor air intake mechanism;

2. Or only the outdoor air introduced by the outdoor air intake mechanism;

3. Or include both indoor and outdoor air.

The air from the condenser is exhausted to the outside through the retractable exhaust pipe.

Due to the indoor/outdoor air inlet selection mechanism of the condenser air duct system, the system realizes the best selection of the air inlet type of the condenser according to the needs of use or the judgment of the operating conditions. Thereby, the portable air conditioner with indoor and outdoor air intake has the following advantages:

1. Through the indoor/outdoor air inlet selection mechanism, only the indoor air inlet mechanism can be selected to introduce indoor air, so that it has the advantages of high cooling efficiency and strong environmental adaptability;

2. Through the indoor/outdoor air inlet selection mechanism, only the outdoor air inlet mechanism is selected to introduce outdoor air, so that it has the advantage of small cooling loss;

3. Through the indoor/outdoor air inlet selection mechanism, the indoor and outdoor side air can be introduced at the same time, which avoids the shortcomings of the double-duct mobile air conditioner's indoor air quality and failure to work normally at high temperatures, and also realizes the control device. Adjust the opening of the indoor/outdoor air inlet selection mechanism to control the proportion of fresh air;

4. Through the unique indoor and outdoor air intake and its opening control method, the disadvantages of single-duct mobile air conditioners that increase air-conditioning load and reduce air-conditioning efficiency are reduced;

In short, through the adjustment of the indoor/outdoor air inlet selection mechanism, the air conditioner can be kept in the best operating state at all times.

Description of drawings

Fig. 1 is a structural schematic diagram of a portable air conditioner with indoor and outdoor air intake in an embodiment of the present invention.

Fig. 2(1)-(2) is a structural schematic diagram of the indoor/outdoor air inlet selection mechanism in the embodiment of the present invention.

Fig. 3 is a schematic diagram of an indoor/outdoor air inlet selection mechanism adjusted by a temperature sensor in an embodiment of the present invention.

Fig. 4 is a schematic structural view of an indoor air intake mechanism located on the air conditioner casing and communicated with the air inlet of the condenser in an embodiment of the invention;

Fig. 5 is a structural schematic diagram of the indoor air intake mechanism located at the connecting device of the telescopic air pipe forming the outdoor air intake mechanism connected to the condenser air inlet in the embodiment of the invention;

Fig. 6 is a structural schematic diagram of the indoor air intake mechanism connected to the outdoor connection device located in the telescopic air duct forming the outdoor air intake mechanism in the embodiment of the invention;

Figure 7(1)-(2) is a schematic structural diagram of an indoor air intake mechanism that is independent in the embodiment of the invention, one end communicates with the indoor air, and the other end is independent or jointly connected to the condenser air inlet with the outdoor air inlet pipe;

Fig. 8 is a schematic structural diagram of an outdoor air intake mechanism in an embodiment of the present invention.

Detailed ways

As shown in FIG. 1 , the indoor unit 101 is a mobile air conditioner that can be moved by casters 113 . Wherein the compressor 104, the condenser 105, the throttling part 108, and the evaporator 106 constitute the refrigeration cycle system of the air conditioner, which provides cooling capacity for the system; the control system 107 is an electrical control system, which provides safe, efficient and economical operation for the air conditioner. effective control.

Sprinkler 110, evaporator 106, condenser 105, intermediate partition 114, water receiving tank 115, water pump system 116 and drain pipe 117 constitute a condensed water spraying system. On the one hand, the condensed water from the evaporator 106 pours onto the condenser 105 from top to bottom to evaporate, and is discharged from the exhaust pipe 111 to the outside with the air from the condenser 105; The accumulated condensed water is pumped from the drain pipe 117 to the condenser 105 to be evaporated circularly.

The evaporator air duct system 102 and the condenser air duct system 103 constitute the air duct system of the air conditioner. The evaporator air duct system 102 sucks indoor air from the rear of the indoor unit 101 , and then re-sends the air that has exchanged heat with the evaporator 106 into the room through the air outlet device 109 . As shown by the arrow in Figure 1, through the control of the air outlet device 109, the direction of the indoor air outlet and the indoor air inlet direction can be vertical or at a certain angle, or can be adjusted within a certain angle range .

The condenser air duct system 103 can manually or automatically control the indoor/outdoor air intake selection mechanism as shown in Figure 2, the indoor/outdoor air intake selection The air inlet is composed of a movable damper cover and a knob 701 for controlling the movement of the damper cover. Through the clockwise or counterclockwise movement of the knob 701, the indoor air inlet 202 or the outdoor air inlet 702 or neither are covered, so as to Select the air inlet type for the condenser.

Also as shown in Figure 3, the indoor/outdoor air inlet selection mechanism consists of a valve 802 arranged at the air inlet of the indoor air inlet mechanism and the outdoor air inlet mechanism and a valve 802 arranged on the condenser or/and in the air outlet passage of the condenser. , and a temperature sensor 801 capable of controlling the opening/closing of the valve is formed. Valve 802 is continuously regulated by temperature sensor 801 on condenser 105 . The temperature sensor 801 transmits the received signal on the condenser 105 to the control system 107 through the signal line 803, and the control system 107 can automatically and continuously control the valve 802 through the signal line 804 according to the temperature change of the condenser 105 to adjust Intake of indoor or outdoor air and opening of fresh air door. That is, only the indoor air introduced by the indoor air inlet mechanism 202 shown in FIG. 4; the outdoor air introduced by the outdoor air inlet 702; The heat is exchanged, and then discharged to the outside through the exhaust pipe 111. Through the adjustment of the indoor/outdoor air inlet selection mechanism, the air conditioner can be kept in the best operating state at all times.

The structural types of the indoor air intake mechanism are as follows, as shown in Figure 4-Figure 7:

1. The indoor air intake mechanism located on the air conditioner box and communicated with the air inlet of the condenser.

As shown in Figure 4, on the rear plate 201 of the air conditioner box, there are several air inlet holes or air inlet grids 202 at the position close to the air inlet of the condenser, and the indoor air can pass through the air inlet holes or air inlet grids. 202 enters the condenser air duct system 103 to exchange heat with the condenser 105 .

2. The indoor air intake mechanism located on the telescopic air duct of the outdoor air intake mechanism connected to the condenser air inlet.

As shown in Figure 5, on the joint 303 between the telescopic air duct 301 of the outdoor air intake mechanism and the air inlet of the condenser, there are several air intake holes or air intake grids 302, and the indoor air can pass through the air intake holes or air intake grilles. The air grid 302 enters the condenser air duct system 103 to exchange heat with the condenser 105 .

3. The indoor air intake mechanism located on the retractable air duct of the outdoor air intake mechanism connected to the connection device outside.

As shown in Figure 6, the telescopic air duct 401 of the outdoor air inlet mechanism is connected to the outdoor joint 403, and there are several air inlet holes or air inlet grids 402, and the indoor air can enter the condensation through the air inlet holes or air inlet grids 402 The condenser air duct system 103 exchanges heat with the condenser 105 .

4. Separate, one end communicates with the indoor air, and the other end is independently or jointly connected with the outdoor air inlet pipe to the indoor air inlet mechanism of the condenser air inlet.

As shown in Figure 7, there is a separate indoor air inlet pipe 502 inside or outside the outdoor air inlet pipe 501, one end of which communicates with the indoor air, and one end is independently or jointly connected to the condenser air inlet with the outdoor air inlet pipe. Indoor air can enter the condenser air duct system 103 through it to exchange heat with the condenser 105 .

The structure of the outdoor air inlet mechanism 112 is shown in Figure 8, which is composed of a telescopic air duct 602, a connecting device 603 connected to the outdoor and a connecting device 601 connected to the air inlet of the condenser, so as to realize heat exchange with the condenser 105 After the air is exhausted outside.

Claims (9)

1. A movable air conditioner with indoor and outdoor air intake, including a movable indoor unit, an evaporator air duct system and a condenser air duct system, wherein the indoor unit is equipped with a water receiving tank, a control system and a compressor, a condenser A refrigeration cycle system composed of a condenser, a throttling component, and an evaporator, which is characterized in that the condenser air duct system is equipped with an indoor air inlet mechanism, an outdoor air inlet mechanism and an exhaust pipe, wherein: One end of the air inlet of the indoor air inlet mechanism communicates with the indoor air, and the other end of the air outlet communicates with the air inlet of the condenser; One end of the air inlet of the outdoor air inlet mechanism communicates with the outdoor air, and one end of the air outlet is connected to the air inlet of the condenser; One end of the exhaust pipe is connected to the outdoor side, and the other end is connected to the air outlet of the condenser. 2. The portable air conditioner with indoor and outdoor air intake according to claim 1, characterized in that there is an indoor/outdoor air intake selection mechanism for controlling the opening or closing of the air inlets of the indoor air intake mechanism and the outdoor air intake mechanism. 3. The portable air conditioner with indoor and outdoor air intake according to claim 2, characterized in that the indoor/outdoor air intake selection mechanism consists of the air inlets of the indoor air intake mechanism and the outdoor air intake mechanism, and can cover The damper cover of the air inlet and the knob for controlling the movement of the damper cover. 4. The portable air conditioner with indoor and outdoor air intake according to claim 2, characterized in that the indoor/outdoor air intake selection mechanism is composed of valves arranged at the air inlets of the indoor air intake mechanism and the outdoor air intake mechanism and located at the The temperature sensor on the condenser or/and in the outlet air passage of the condenser is used to control the opening/closing of the valve. 5. The mobile air conditioner with indoor and outdoor air intake according to claim 1 or 2 or 3 or 4, characterized in that the indoor air intake mechanism is a set of air intake holes or air grilles arranged on the indoor unit. 6. The portable air conditioner with indoor and outdoor air intake according to claim 1, 2, 3 or 4, characterized in that the indoor air intake mechanism is an air duct, and one end of the air duct communicates with the indoor air. The other end communicates with the air inlet of the condenser. 7. The portable air conditioner with indoor and outdoor air intake according to claim 1 or 2 or 3 or 4, characterized in that the outdoor air intake mechanism of the condenser air duct system is a telescopic air duct, one end of which is connected to The outdoor air is communicated, and the other end is connected with the air inlet of the condenser. 8. The portable air conditioner with indoor and outdoor air intake according to claim 7, characterized in that the indoor air intake mechanism is a group of air intake holes or air grids arranged on the retractable air duct of the outdoor air intake mechanism. 9. The portable air conditioner with indoor and outdoor air intake according to claim 1 or 2 or 3 or 4, characterized in that the retractable air duct of the outdoor air intake mechanism is sleeved in the exhaust duct.

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