Air conditioning cabinet and air conditioner

Abstract

The present invention provides an air conditioning cabinet and an air conditioner, which belong to the field of air conditioning technology. The air conditioning cabinet includes a shell, an upper air duct assembly, a lower air duct assembly, a heat exchanger and an electric auxiliary heating device. The shell is provided with a shell air inlet, an upper air outlet and a lower air outlet. The upper air duct assembly is arranged in the air inlet direction of the shell air inlet and is connected with the upper air outlet; the lower air duct assembly is connected with the lower air outlet; the heat exchanger is arranged at the shell air inlet; the lower air duct assembly includes a lower fan, whose rotating shaft is arranged vertically; a reference line can be determined along the rotating shaft of the lower fan, and the electric auxiliary heating device is arranged between the heat exchanger and the reference line. When heating, the wind coming out of the lower air outlet can achieve carpet heating. When cooling, the cold air is blown out from the upper air outlet, giving the user a bathing cooling experience. In addition, the electric auxiliary heating device is arranged between the heat exchanger and the reference line determined by the lower fan, which can increase the air volume of the whole machine and improve the cooling or heating effect.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioning cabinet and an air conditioner. Background Art

[0002] The mainstream cabinet air conditioners on the market now mostly adopt a vertical cross-flow fan blade structure, that is, a vertical strip air outlet is set on the front panel, and hot or cold air is blown out from the air outlet. This cabinet has a single air outlet method, which easily leads to uneven temperature distribution in areas at different heights at the same location in the room; for example, when heating, the temperature of the upper space is higher and the temperature of the bottom space is lower. Therefore, in order to improve user comfort and user experience, it is of great practical significance to improve the existing cabinet air conditioners. Summary of the invention

[0003] The present invention provides an air conditioning cabinet unit, which can effectively reduce the temperature difference between upper and lower spaces in a room.

[0004] An air conditioning cabinet, comprising a housing, and an upper air duct assembly, a lower air duct assembly, a heat exchanger and an electric auxiliary heating device arranged in the housing;

[0005] The shell is provided with a shell air inlet, an upper air outlet and a lower air outlet; the upper air duct component is arranged on the air inlet path of the shell air inlet and is connected with the upper air outlet; the lower air duct component is connected with the lower air outlet;

[0006] The heat exchanger is arranged at the air inlet of the shell;

[0007] The downwind duct assembly comprises a downwind fan, the rotating shaft of which extends along the height direction of the shell; the electric auxiliary heating device is located between the heat exchanger and the rotating shaft axis of the downwind fan.

[0008] The downwind assembly includes a downwind fan, and the shaft of the downwind fan extends along the height direction of the shell (that is, the shaft of the downwind fan is vertically arranged, and vertical does not specifically refer to absolute verticality, but refers to the fact that when the air conditioner cabinet is normally installed and placed, the shaft of the downwind fan is roughly vertical, which can be absolutely vertical or have a certain error, for example, if the shaft deviates from the absolute vertical direction by 5°, it is also considered vertical). The heat exchanger can be connected to the inner wall of the shell, or to other components in the shell; the electric auxiliary heating device can be connected to the downwind fan or the inner wall of the shell.

[0009] When the above-mentioned air-conditioning cabinet is heating, the upper air duct assembly and the lower air duct assembly work at the same time, and the hot air is blown out from the upper air outlet and the lower air outlet. The wind coming out of the lower air outlet can fall to the ground in time, thereby realizing carpet-style heating. And, since the hot air itself is light, it can rise automatically. Therefore, the wind coming out of the upper air outlet and the lower air outlet can quickly heat the upper and lower spaces of the room; and make the temperature of the upper and lower spaces more uniform. When cooling, the upper air duct assembly works, and the cold air is blown out from the upper air outlet of the shell. Since the cold air itself is heavy, it can sink automatically; in the sinking process, it gives the user a bathing-style cooling experience, and can achieve rapid and uniform cooling of the upper and lower spaces.

[0010] In addition, the electric auxiliary heating device is arranged between the heat exchanger and the axis of the lower fan shaft, which can reduce the impact of the installation of the electric auxiliary heating device on the air volume of the whole machine, thereby increasing the air volume of the entire air-conditioning cabinet and improving the cooling or heating effect.

[0011] Further; along the air inlet direction of the shell air inlet, the electric auxiliary heating device is arranged on the rear side of the axis of the lower fan shaft, and the distance between the electric auxiliary heating device and the axis of the lower fan shaft is greater than 27mm and less than 100mm.

[0012] Through fluid simulation analysis, the electric auxiliary heating device is arranged close to the rear panel of the shell so that the distance between the electric auxiliary heating device and the axis of the lower fan shaft is between 27mm and 81mm, which has a better effect on increasing the air volume of the whole machine.

[0013] Furthermore, the distance between the electric auxiliary heating device and the axis of the lower fan shaft is greater than 45mm and less than 63mm.

[0014] Through fluid simulation analysis, the above distance is more effective in increasing the air volume of the whole machine.

[0015] Further; the distance between the electric auxiliary heating device and the axis of the lower fan shaft is 63mm.

[0016] Through fluid simulation analysis, it is found that when the distance between the electric auxiliary heating device and the axis of the lower fan shaft is 63mm, the air volume of the whole machine is the largest.

[0017] Furthermore, the electric auxiliary heating device is a strip-shaped structure and extends along the height direction of the shell, that is, it is arranged vertically (absolutely vertical or approximately vertical).

[0018] The above structure can reduce the impact of the electric auxiliary heating device on the air volume and increase the efficiency of heat exchange.

[0019] Furthermore, it also includes a water receiving pan, which is located below the heat exchanger and connected to the lower fan.

[0020] Providing a water tray can effectively prevent water droplets falling from the heat exchanger from entering the downwind duct assembly, thereby preventing the water droplets from being blown into the room.

[0021] Furthermore, the water receiving tray includes an annular body, which is connected to the lower fan, and the middle part of the annular body includes a ventilation hole, which is connected to the air inlet of the lower fan.

[0022] The wind coming from the air inlet of the shell can directly enter the lower machine through the ventilation holes on the water receiving tray, thereby minimizing the impact of the water receiving tray on the air suction of the lower fan.

[0023] Furthermore, the water receiving tray also includes a mounting rod, the mounting rod is connected to the annular body, the electric auxiliary heating device extends along the height direction of the shell, and the electric auxiliary heating device is connected to the mounting rod.

[0024] The electric auxiliary heating device is suspended vertically above the water tray, which not only improves the heat exchange efficiency but also reduces the impact on the air volume of the downstream fan.

[0025] The annular body is provided with a water receiving groove, the mounting rod is provided with a flow guide groove, and the flow guide groove is communicated with the water receiving groove.

[0026] The above design enables the condensed water flowing down from the electric auxiliary heating device to be introduced into the water receiving trough through the guide trough, thereby preventing the condensed water on the electric auxiliary heating device from falling into the lower fan.

[0027] An air conditioner comprises an air conditioning cabinet.

[0028] The beneficial effects of the technical solution provided by the present invention include:

[0029] In the above-mentioned air-conditioning cabinet and air conditioner, when heating, hot air is blown out from the upper air outlet and the lower air outlet. The hot air coming out of the lower air outlet can fall to the ground in time, thereby realizing carpet-style heating. Moreover, since the hot air itself is relatively light, it can rise automatically. Therefore, the wind coming out of the upper air outlet and the lower air outlet can quickly heat the upper and lower spaces of the room; and make the temperature of the upper and lower spaces more uniform. When cooling, cold air is blown out from the upper air outlet of the shell, and since the cold air itself is relatively heavy, it can automatically sink; during the sinking process, it gives the user a bathing-style cooling experience, and can realize rapid and uniform cooling of the upper and lower spaces. In addition, the electric auxiliary heating device is arranged between the heat exchanger and the axis of the lower fan shaft, which can reduce the impact of the installation of the electric auxiliary heating device on the air volume of the whole machine, thereby increasing the air volume of the whole air-conditioning cabinet; improving the cooling or heating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 An exploded schematic diagram of an air conditioning cabinet provided in an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the structure of an upper air duct assembly provided in an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of the structure of a heat exchanger, an electric auxiliary heating device and an upper air duct assembly provided in an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of the distance between the axis of the lower fan shaft and the electric auxiliary heating device provided in an embodiment of the present invention;

[0034] Figure 5 Provide flow field diagrams of air inside and outside the housing for embodiments of the present invention;

[0035] Figure 6 The flow field diagram when the value of a is -81 provided in the embodiment of the present invention;

[0036] Figure 7 The flow field diagram when the value of a is -63 provided in the embodiment of the present invention;

[0037] Figure 8 The flow field diagram when the value of a is -45 provided in the embodiment of the present invention;

[0038] Fig. 9 The flow field diagram when the value of a is -27 provided in the embodiment of the present invention;

[0039] Fig.10 The flow field diagram when the value of a is -9 provided in the embodiment of the present invention;

[0040] Fig.11 The flow field diagram when the value of a is 9 provided in the embodiment of the present invention;

[0041] Fig.12 A diagram showing the change of air volume when a takes different values ​​provided by an embodiment of the present invention;

[0042] Fig.13 A schematic structural diagram of a water receiving tray is provided for an embodiment of the present invention;

[0043] Fig.14 A top view of a water receiving tray provided in an embodiment of the present invention;

[0044] Fig.15 A schematic diagram of the air conditioning cabinet provided by an embodiment of the present invention during cooling;

[0045] Fig.16 This is a schematic diagram of the air conditioning cabinet provided by an embodiment of the present invention when heating.

[0046] Icons: 100-air conditioning cabinet; 110-housing; 111-cover; 112-front panel; 1121-upper air outlet; 1122-lower air outlet; 113-base; 114-rear panel; 115-housing air inlet; 116-connecting bracket; 120-upper air duct assembly; 121-upper fan; 122-installation housing; 130-lower air duct assembly; 132-lower fan; 140-air outlet assembly; 142-air outlet channel; 150-air guide channel; 160-heat exchanger; 170-electric auxiliary heating device; 180-water tray; 182-ring body; 1821-water trough; 1822-ventilation hole; 184-mounting rod; 1841-fixing plate; 1842-guide trough; 190-guide pipe. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0048] Please refer to Figure 1 This embodiment provides an air conditioning cabinet 100, which includes a housing 110, and an upper air duct assembly 120, a lower air duct assembly 130, a heat exchanger 160 and an electric auxiliary heating device 170 arranged in the housing 110. The housing air inlet 115 is arranged on the rear panel 114 of the housing 110, and the upper air outlet 1121 and the lower air outlet 1122 are arranged on the front panel 112 of the housing 110. The upper air duct assembly 120 is arranged in the air inlet direction of the housing air inlet 115 and is connected to the upper air outlet 1121; the lower air duct assembly 130 is arranged at the lower part of the housing 110 and is connected to the lower air outlet 1122. A connecting bracket 116 is arranged inside the housing air inlet 115, and the heat exchanger 160 is arranged between the housing air inlet 115 and the upper air duct assembly 120, and is connected to the connecting bracket 116; the electric auxiliary heating device 170 is arranged between the heat exchanger 160 and the axis of the rotating shaft of the lower fan 132.

[0049] Specifically, the housing 110 includes a base 113, a cover plate 111, and a front panel 112 and a rear panel 114 connected to each other; the front panel 112 and the rear panel 114 are connected to form a cylindrical structure, the base 113 is arranged at the lower end of the cylindrical structure, and the cover plate 111 is arranged at the upper end of the cylindrical structure. An upper air outlet 1121 and a lower air outlet 1122 are arranged on the front panel 112, and the two air outlets are arranged at the upper part and the lower part of the front panel 112 respectively; the housing air inlet 115 is arranged on the rear panel 114.

[0050] Please refer to Figure 1 and Figure 2The upper air duct assembly 120 includes a mounting housing 122 and two upper fans 121. The two upper fans 121 are both arranged in the mounting housing 122, and one fan is located above the other fan. The two upper fans 121 are both centrifugal fans, and the air inlets on the sides thereof are arranged vertically and are arranged relatively spaced from the housing air inlet 115 on the rear panel 114, so that the air coming in from the housing air inlet 115 can directly enter the upper fans 121.

[0051] Please continue to refer to Figure 1 The upper part of the upper air duct assembly 120 is also provided with an air outlet assembly 140, and the air outlet assembly 140 includes an air outlet channel 142. The upper air duct assembly 120 is connected with the upper air outlet 1121 of the housing 110 through the air outlet assembly 140. The wind from the upper air duct assembly 120 is blown into the room through the air outlet channel 142 and the upper air outlet 1121.

[0052] Please refer to Figure 1 and Figure 3 The heat exchanger 160 is vertically disposed between the housing air inlet 115 and the upper air duct assembly 120, and is installed and fixed adjacent to the housing air inlet 115. The air entering from the housing air inlet 115 can directly enter the upper air duct assembly 120 after heat exchange by the heat exchanger 160. Since the heat exchanger 160 can be purchased directly, the specific structure of the heat exchanger 160 is not described in detail to avoid redundancy.

[0053] The downwind duct assembly 130 is arranged at the lower part of the housing 110 and below the heat exchanger 160; it includes a downwind fan 132. The downwind fan 132 adopts a centrifugal fan, and the rotating shaft of its impeller is arranged vertically, so that the air inlet on its side is located in a horizontal position. After the wind coming in from the housing air inlet 115 passes through the heat exchanger 160, it can flow downward into the downwind fan 132. An air guide channel 150 is also arranged at the air outlet of the downwind fan 132, and the downwind fan 132 is connected to the lower air outlet 1122 of the housing 110 through the air guide channel 150. Along the air outlet direction, the air guide channel 150 is arranged to be tilted downward; so that the wind coming out of the downwind fan 132 changes its wind direction from horizontal to tilted downward after passing through the air guide channel 150. The above design allows the wind coming out of the lower air outlet 1122 to be blown directly onto the ground, thereby facilitating carpet heating.

[0054] Please refer to Figure 4 Since the rotating shaft of the impeller of the lower fan 132 is arranged vertically, a vertical axis can be determined along its rotating shaft. Since the heat exchanger 160 is arranged at the air inlet 115 of the shell, the axis of the rotating shaft of the lower fan is located in front of the heat exchanger 160. The electric auxiliary heating device 170 is fixedly installed between the heat exchanger 160 and the axis of the rotating shaft of the lower fan; that is, along the air inlet direction of the shell air inlet 115, the electric auxiliary heating device 170 is arranged on the rear side of the axis of the rotating shaft of the lower fan.

[0055] For details, please continue to refer to Figure 4 , (Attached Figure 4 a represents the distance between the front of the electric auxiliary heating device 170 and the axis of the lower fan shaft. A negative number means that the electric auxiliary heating device 170 is arranged at the rear side of the axis of the lower fan shaft, and a positive number means that the electric auxiliary heating device 170 is arranged at the front side of the axis of the lower fan shaft). Figure 5-Figure 12 , Figure 5 The overall flow field distribution diagram of air outside and inside the housing 110; Figure 6-Figure 11 The flow field simulation diagram of air from the housing air inlet 115 to the upper fan 121 and the lower fan 132 when a takes different values, Figure 6 a=-81, Figure 7 a = -63; Figure 8 a = -45; Fig. 9 a = -27; Fig.10 a = -9; Fig.11 a=9; Fig.12 This is a line graph of the air volume of the air conditioner cabinet when a takes different values.

[0056] After simulation analysis, it is found that when the electric auxiliary heating device 170 is arranged at the rear side of the axis of the lower fan shaft and the distance between the electric auxiliary heating device 170 and the axis of the lower fan shaft is greater than 27 and less than 100, the air volume of the entire air-conditioning cabinet is larger; when the above distance is greater than 45mm and less than 81mm, the air volume is even greater; when the above distance is 63mm, the air volume is the largest.

[0057] Please continue to refer to Figure 1 , with reference Fig.13 , Fig.14 In order to facilitate the installation of the electric auxiliary heating device 170 and prevent the condensed water on the heat exchanger 160 from falling into the lower air duct assembly 130, the air conditioning cabinet in this embodiment is also provided with a water receiving tray 180. The water receiving tray 180 is arranged below the heat exchanger 160 and connected to the lower fan 132.

[0058] Specifically, the water receiving tray 180 includes an annular body 182 and a strip-shaped mounting rod 184. The lower part of the annular body 182 is connected to the air inlet of the lower fan 132, and a ventilation hole 1822 having a diameter substantially equal to that of the air inlet of the lower fan 132 is provided in the middle thereof, and the ventilation hole 1822 is connected to the air inlet of the lower fan 132. A water receiving trough 1821 is provided at the upper part of the annular body 182, and the water receiving trough 1821 extends along the annular body 182. The cross section of the heat exchanger 160 is substantially U-shaped, and the condensed water formed on the heat exchanger 160 and the air duct surface opposite to the heat exchanger 160 can directly fall into the water receiving trough 1821 below. A flow guide pipe 190 is provided at the lower part of the water receiving trough 1821, and the condensed water flows to the outside of the housing 110 through the flow guide pipe 190.

[0059] The mounting rod 184 spans the ventilation hole 1822 on the annular body 182, and its two ends are connected to the annular body 182. A horizontal fixing plate 1841 is provided in the middle of the mounting rod 184, and a threaded hole is provided on the fixing plate 1841. The bottom of the electric auxiliary heating device 170 is fixedly connected to the fixing plate 1841 by screws. A strip-shaped guide groove 1842 is provided on the mounting rod 184, and the guide groove 1842 extends along the length direction of the mounting rod 184 and is connected to the water receiving groove 1821 on the annular body 182. The condensed water formed on the electric auxiliary heating device 170 can flow directly into the guide groove 1842 on the mounting rod 184, and flow into the water receiving groove 1821 through the guide groove 1842.

[0060] The water receiving tray 180 of the above structure allows the electric auxiliary heating device 170 to be vertically suspended above the downwind fan 132, so that the electric auxiliary heating device 170 has less impact on the air intake of the downwind duct assembly 130; and the water receiving tray 180 can guide the condensed water to the outside of the shell 110 to prevent the condensed water from being blown into the room through the downwind fan 132.

[0061] The use method and beneficial effects of the air conditioning cabinet provided in this embodiment are as follows:

[0062] When the above air conditioner cabinet is heating ( Fig.15 ), the hot air is blown out from the upper air outlet 1121 and the lower air outlet 1122; the hot air from the lower air outlet 1122 can fall to the ground in time, thereby achieving carpet-style heating. In addition, since the hot air itself is light, it can automatically rise. Therefore, the wind from the upper air outlet 1121 and the lower air outlet 1122 can quickly heat the upper and lower spaces of the room; and make the temperature of the upper and lower spaces of the room more uniform. When cooling ( Fig.16 ), the lower fan 132 does not work, and air can enter from the housing air inlet 115 and the lower air outlet 1122 at the same time, thereby increasing the air intake of the upper fan 121. The cold air is blown out from the upper air outlet 1121 of the housing 110. Since the cold air itself is heavy, it can sink automatically; during the sinking process, it gives the user a shower-like cooling experience and can achieve rapid and uniform cooling of the upper and lower spaces.

[0063] It should be noted that this embodiment is only one of many embodiments, and in other embodiments, the electric auxiliary heating device 170 may also adopt other structures in the prior art; or, the water receiving tray 180 may not be provided. The above embodiments are all within the protection scope of the present invention.

[0064] In addition, the orientation terms "vertical" or "horizontal" in the present disclosure are based on the normal installation and placement of the air-conditioning cabinet; and, "vertical" and "horizontal" do not specifically refer to absolute vertical or horizontal, but can have a certain error (for example, 5°).

[0065] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various modifications without departing from the spirit and scope of the present invention, and the above modifications are all within the protection scope of the present invention.

Claims

1. An air conditioning cabinet, characterized in that: The air conditioning cabinet comprises a housing (110), and an upper air duct assembly (120), a lower air duct assembly (130), a heat exchanger (160), and an electric auxiliary heating device (170) arranged in the housing (110); The shell (110) is provided with a shell air inlet (115), an upper air outlet (1121) and a lower air outlet (1122); the upper air duct component (120) is provided on the air inlet path of the shell air inlet (115) and is in communication with the upper air outlet (1121); the lower air duct component (130) is in communication with the lower air outlet (1122); The heat exchanger (160) is arranged at the air inlet (115) of the shell; The downwind duct assembly (130) comprises a downwind fan (132), the rotating shaft of the downwind fan (132) extending in the height direction of the housing (110); the electric auxiliary heating device (170) is located between the heat exchanger (160) and the axis of the rotating shaft of the downwind fan, and the electric auxiliary heating device is arranged at the rear side of the axis of the rotating shaft of the downwind fan; The air conditioning cabinet further comprises a water receiving tray (180), wherein the water receiving tray (180) is located below the heat exchanger (160) and is connected to the downwind fan (132); The water receiving tray (180) comprises an annular body (182), the annular body (182) is connected to the lower fan (132), the middle portion of the annular body (182) comprises a ventilation hole (1822), and the ventilation hole (1822) is connected to the air inlet of the lower fan (132); The water receiving tray (180) further comprises a mounting rod (184), wherein the mounting rod (184) is connected to the annular body (182); the electric auxiliary heating device (170) extends in a height direction of the shell (110), and the electric auxiliary heating device (170) is connected to the mounting rod (184).

2. The air conditioning cabinet according to claim 1, characterized in that: The distance between the electric auxiliary heating device (170) and the axis of the lower fan shaft is greater than 27 mm and less than 100 mm.

3. The air conditioning cabinet according to claim 2, characterized in that: The distance between the electric auxiliary heating device (170) and the axis of the lower fan shaft is greater than 45 mm and less than 81 mm.

4. The air conditioning cabinet according to claim 2, characterized in that: The distance between the electric auxiliary heating device (170) and the axis of the lower fan shaft is 63 mm.

5. The air conditioning cabinet according to claim 1, characterized in that: The electric auxiliary heating device (170) is a strip-shaped structure, and extends along the height direction of the housing (110).

6. The air conditioning cabinet according to claim 1, characterized in that: The annular body (182) is provided with a water receiving groove, the mounting rod (184) is provided with a flow guide groove (1842), and the flow guide groove (1842) is connected to the water receiving groove (1821).

7. An air conditioner, characterized in that: The air conditioner comprises the air conditioning cabinet according to any one of claims 1 to 6.

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