WO2021022897A1 - Cabinet air conditioner and control method - Google Patents

Abstract

Disclosed are a cabinet air conditioner and a control method. The cabinet air conditioner comprises a housing (10), the housing (10) having an upper air port (11) and a lower air port (12); a heat exchanger (20), the heat exchanger (20) being disposed in the housing (10) and located between the upper air port (11) and a lower air port (12); a mixed flow fan portion (30), the mixed flow fan portion (30) being disposed in the housing (10); and a regulating mechanism (40), the regulating mechanism (40) being disposed in the housing (10), the regulating mechanism (40) being located between the mixed flow fan portion (30) and the heat exchanger (20), the regulating mechanism (40) having a necking position where the regulating mechanism contracts toward the axis of the housing (10), and the regulating mechanism (40) having a flaring position where the regulating mechanism gradually expands away from the axis of the housing (10). When the regulating mechanism (40) is located at the necking position, an outside airflow is drawn into the housing (10) by means of the mixed flow fan portion (30) through the upper air port (11), performs heat exchange with the heat exchanger (20), and is then discharged out of the housing (10) through the lower air port (12). Same enables the temperature difference of the indoor temperature in the longitudinal direction to be very small, and the utilization rate of the energy generated by the cabinet air conditioner can be effectively improved.

Description

Air conditioning cabinet and control method Technical field

This application relates to the technical field of air conditioner equipment, and in particular to an air conditioner cabinet and a control method. This application claims the priority of the patent application filed to the State Intellectual Property Office of China on August 2, 2019 with the application number 201910713842.4 and the invention title "Air-conditioning cabinet and control method".

Background technique

At present, the vertical cabinet air conditioners mainly include square upper air outlet cabinets, circular long air outlet cabinets, and distributed air supply cabinets that discharge air at the same time. Due to the cold and hot air characteristics of sinking cold air and floating hot air, When cooling, heating and supplying air, it will cause the problem of indoor air heat stratification. Because the return air position of the cabinet air conditioner remains unchanged, the heat distribution will not change. The air conditioner exchanges heat according to the indoor temperature, and the distributed air supply cabinet The problem of thermal stratification of the machine is relatively small, and the temperature difference between the upper and lower sides is small, but it still cannot overcome the inefficiency of energy utilization caused by the characteristics of cold and hot air.

Summary of the invention

The main purpose of this application is to provide an air-conditioning cabinet and a control method to solve the problem of the low utilization rate of the cooling capacity in the prior art.

In order to achieve the above objective, according to one aspect of the present application, an air-conditioning cabinet is provided, including: a housing, the housing has an upper air inlet and a lower air outlet; a mixed flow fan part, the mixed flow fan part is arranged in the housing; an adjustment mechanism, an adjustment mechanism It is arranged in the casing, and the adjusting mechanism has a necking position and a flaring position. When the adjusting mechanism is at the necking position, the mixed flow fan part sucks the external airflow into the casing from the upper air port, and then discharges it out of the casing through the lower air port.

Further, the air-conditioning cabinet machine includes: a heat exchanger, the heat exchanger is arranged in the shell and is located between the upper air outlet and the lower air outlet, the adjustment mechanism is located between the mixed flow fan part and the heat exchanger, and the adjustment mechanism has a contraction toward the axis of the shell When the adjusting mechanism is in the narrowing position, the mixed flow fan unit draws the external airflow into the shell from the upper air port and exchanges heat with the heat exchanger. , Exhaust out of the shell through the down vent

Further, when the adjusting mechanism is at the flaring position, the mixed flow fan unit sucks the external airflow into the shell from the downwind port for heat exchange with the heat exchanger, and then discharges it out of the shell through the upwind port.

Further, the air-conditioning cabinet includes an air duct. The air duct includes a first air duct and a second air duct. The first air duct is arranged in the housing, and the first end of the first air duct is connected to the lower air outlet. The second end is connected with the adjusting mechanism, the adjusting mechanism and the first air duct are enclosed to form a second air duct, and the mixed flow fan part is arranged in the first air duct.

Further, the air duct further includes a third air duct and a fourth air duct. The air-conditioning cabinet includes: a support part connected to the inner wall of the housing; the adjustment mechanism is located below the support part; Road, the heat exchanger is connected with the supporting part.

Further, the heat exchanger is of a hollow structure, the hollow structure is connected to the second air passage through the flow passage to form a third air passage, and the outer surface of the heat exchanger and the shell are arranged at a distance to form a fourth air passage, The fourth air duct is connected with the upper air inlet and the third air duct.

Further, the supporting part includes: a water receiving pan, which is connected with the housing, the water receiving pan is provided with a flow passage, and the water receiving pan is used for collecting the condensed water generated by the heat exchanger.

Further, the heat exchanger is a barrel structure with an open end, the open end of the heat exchanger is connected to the water receiving plate, the inner diameter of the open end of the heat exchanger is larger than the inner diameter of the flow passage, and the airflow in the third air duct can pass through the In the heat exchanger, or, the airflow in the fourth air duct may flow into the third air duct after heat exchange through the side wall of the heat exchanger.

Further, the adjustment mechanism includes: a first adjustment mechanism, the first end of the first adjustment mechanism is movably connected to the second end of the first air duct, the second end of the first adjustment mechanism is arranged away from the first air duct, The second end of an adjusting mechanism has a narrowing position approaching the axis of the housing, and the second end of the first adjusting mechanism has a flaring position away from the axis of the housing; the second adjusting mechanism, the first of the second adjusting mechanism One end is movably connected to the drain pan, the second end of the second adjustment mechanism has a narrowing position approaching the axis of the housing, and the second end of the second adjustment mechanism has a flaring position away from the axis of the housing , When the first adjusting mechanism and the second adjusting mechanism are both in the retraction position, the first end of the first adjusting mechanism is in contact with the second end of the second adjusting mechanism, and the first adjusting mechanism and the second adjusting mechanism are enclosed Into a sealed second air duct.

Further, when the first adjusting mechanism and the second adjusting mechanism are both located at the flaring position, at least one of the first adjusting mechanism and the second adjusting mechanism, the housing, the supporting portion, and the drain pan is surrounded by a second air duct .

Further, when the first adjusting mechanism and the second adjusting mechanism are both located at the retracted position, the cross-sectional area of the second air duct is gradually reduced in a direction away from the mixed flow fan part.

Further, when the first adjusting mechanism and the second adjusting mechanism are both in the flaring position, the cross-sectional area of the air duct structure enclosed by the second adjusting mechanism is gradually increased in the direction toward the mixed flow fan portion.

Further, the first adjusting mechanism includes: a first arc-shaped adjusting plate, the first end of the first arc-shaped adjusting plate is hinged with the end side wall of the first air duct, and the second end of the first arc-shaped adjusting plate is far away from The first air duct is arranged, there are multiple first arc-shaped adjusting plates, and the plurality of first arc-shaped adjusting plates are arranged along the circumferential direction of the first air duct. When each first arc-shaped adjusting plate is located at the necked position, there are multiple The first arc-shaped adjusting plate is enclosed in an annular air duct structure.

Further, the second end of the first arc-shaped adjusting plate is provided with a folded edge, and the folded edge is bent toward one side of the casing.

Further, the second adjusting mechanism includes: a second arc-shaped adjusting plate, the first end of the second arc-shaped adjusting plate is hinged with the bottom of the water receiving tray, and the second end of the second arc-shaped adjusting plate can wrap around the second arc The first end of the curved adjusting plate is rotatably arranged with the hinge point of the water receiving tray, there are multiple second curved adjusting plates, and the plurality of second curved adjusting plates are arranged along the circumferential direction of the flow passage. When the shaped adjusting plate is located at the necking position, a plurality of second arc shaped adjusting plates are enclosed to form an annular air duct structure.

Further, the support part further includes: an annular support platform, the annular support platform is connected to the inner wall of the housing, the water receiving pan is connected with the annular support platform and is located above the annular support platform, when the second arc-shaped adjusting plate is located at the flaring When in the position, the second end of the second arc-shaped adjusting plate is in sealing connection with the inner peripheral surface of the annular support table.

Further, the bottom of the annular support platform is provided with an inclined surface, and when the second arc-shaped adjusting plate is located at the flaring position, the lower surface of the second arc-shaped adjusting plate is parallel to the inclined surface.

Further, the heat exchanger has a cylindrical structure, the axis of the heat exchanger is arranged in a vertical direction, and an end of the heat exchanger close to the air inlet is provided with a top plate.

According to another aspect of the present application, there is provided a method for controlling an air-conditioning cabinet. The method is used to control the above-mentioned air-conditioning cabinet. The method includes the following steps: when the heating mode is selected by the controller of the air-conditioning cabinet, the adjusting mechanism Located at the retraction position, the mixed flow fan unit sucks the external air flow into the shell from the upper air vent to exchange heat with the heat exchanger, and then discharges it out of the shell through the lower air vent; when the cooling mode is selected by the controller, the adjusting mechanism is at the flaring position, mixed flow The fan unit sucks the external airflow into the shell from the downwind port and exchanges heat with the heat exchanger, and then discharges it out of the shell through the upwind port.

Furthermore, the air-conditioning cabinet also includes an air supply mode. When the air supply mode is selected by the controller, the adjusting mechanism is located at the retracted position, and the mixed flow fan unit sucks the external air flow into the housing from the upper air port and discharges it out of the housing through the lower air port. Or, when the air supply mode is selected by the controller, the adjusting mechanism is located at the flaring position, and the mixed flow fan section sucks the external air into the shell from the lower air outlet, and then discharges it out of the shell through the upper air outlet; among them, in the air supply mode, heat exchange The device is not working.

Applying the technical solution of this application, by setting the adjusting mechanism in the housing, and controlling the adjusting mechanism to be located at the flaring position or the shrinking position, the air-conditioning cabinet with the mixed flow fan unit can realize the mode of air inlet at the upper air outlet and air outlet at the lower air outlet. , Or make the air-conditioning cabinet realize the mode of air outlet from the upper air outlet and air inlet from the lower air outlet. Especially when the air-conditioning cabinet is in the cooling mode, the upper air outlet and the lower air inlet mode are adopted. In the heating mode, the air-conditioning cabinet adopts the upper air inlet and lower air outlet modes, which can effectively avoid indoor appearance. The problem of heat stratification can make the indoor temperature have a small temperature difference in the longitudinal direction, and can effectively use the energy utilization rate generated by the air conditioning cabinet.

Description of the drawings

The drawings of the specification forming a part of the application are used to provide a further understanding of the application, and the exemplary embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation of the application. In the attached picture:

Fig. 1 shows a schematic structural diagram of an embodiment when the upper air outlet and the lower air outlet of the air-conditioning cabinet according to the present application are closed;

Fig. 2 shows a schematic structural view of the first embodiment when the upper air outlet and the lower air outlet of the air-conditioning cabinet according to the present application are open;

FIG. 3 shows a schematic structural view of an embodiment of the air-conditioning cabinet according to the present application when air is taken in from the upper air port and air is discharged from the lower air port;

4 shows a schematic structural view of a second embodiment when the upper air outlet and the lower air outlet of the air-conditioning cabinet according to the present application are open;

FIG. 5 shows a schematic structural view of an embodiment of the air-conditioning cabinet according to the present application when air is discharged from the upper air outlet and air is entered from the lower air outlet;

Fig. 6 shows a schematic cross-sectional structure diagram of an embodiment of the air-conditioning cabinet according to the present application when air is discharged from the upper air outlet and air is entered from the lower air outlet;

Fig. 7 shows a schematic cross-sectional structure diagram of an embodiment of the air-conditioning cabinet according to the present application when air is taken in from the upper air port and air is discharged from the lower air port.

Among them, the above drawings include the following reference signs:

10. Shell; 11. Upward vent; 12. Downward vent;

20. Heat exchanger; 21. Top plate;

30. Mixed flow fan department;

40. Adjusting mechanism; 41. First adjusting mechanism; 411. First arc-shaped adjusting plate; 412. Folding;

42. The second adjustment mechanism; 421. The second arc-shaped adjustment plate;

51. The first air channel; 52. The second air channel; 53, the third air channel; 54, the fourth air channel;

60. Support part; 61. Drain pan; 62. Annular support platform;

70. Overcurrent channel.

detailed description

It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with embodiments.

It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and/or "including" are used in this specification, they indicate There are features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first" and "second" in the description and claims of the application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to the clearly listed Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.

Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many different forms, and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of this application thorough and complete, and to fully convey the concept of these exemplary embodiments to those of ordinary skill in the art. In the drawings, for clarity, it may be enlarged. The thicknesses of layers and regions are shown, and the same reference numerals are used to denote the same devices, so their description will be omitted.

As shown in FIG. 1 to FIG. 7, according to a specific embodiment of the present application, an air-conditioning cabinet is provided.

Specifically, as shown in FIGS. 1 and 7, the air-conditioning cabinet includes a casing 10, a heat exchanger 20, a mixed flow fan unit 30 and an adjustment mechanism 40. The housing 10 has an upper air port 11 and a lower air port 12. The heat exchanger 20 is arranged in the housing 10 and located between the upper air port 11 and the lower air port 12. The mixed flow fan unit 30 is provided in the housing 10. The adjusting mechanism 40 is arranged in the housing 10, the adjusting mechanism 40 is located between the mixed flow fan portion 30 and the heat exchanger 20, the adjusting mechanism 40 has a retracted position that shrinks toward the axis of the housing 10, and the adjusting mechanism 40 is far away from the housing 10. The flaring position where the axis gradually expands. When the adjusting mechanism 40 is in the retracted position, the mixed flow fan section 30 can suck the external airflow from the upper air port 11 into the housing 10 for heat exchange with the heat exchanger 20 and then discharge it through the lower air port 12 Outside the housing 10.

In this embodiment, by setting the adjusting mechanism in the housing, and controlling the adjusting mechanism to be located at the flaring position or the shrinking position, the air-conditioning cabinet with the mixed flow fan unit can realize the mode of air inlet at the upper air port and air outlet at the lower air port. Or make the air-conditioning cabinet realize the mode of air outlet from the upper air outlet and air inlet from the lower air outlet. Especially when the air-conditioning cabinet is in the cooling mode, the upper air outlet and the lower air inlet mode are adopted. In the heating mode, the air-conditioning cabinet adopts the upper air inlet and lower air outlet modes, which can effectively avoid indoor appearance. The problem of heat stratification can make the indoor temperature have a small temperature difference in the longitudinal direction, and can effectively use the energy utilization rate generated by the air conditioning cabinet.

Wherein, as shown in FIG. 6, when the adjusting mechanism 40 is at the flaring position, the mixed flow fan section 30 can suck the external airflow from the downwind port 12 into the shell 10 for heat exchange with the heat exchanger 20, and then exit the shell through the upwind port 11. Body 10 outside. The air inlet direction and the air outlet direction of the case can be changed by setting the adjustment mechanism 40 in the case. This arrangement can solve the existing technology that requires multiple fans in the case to change the air inlet mode of the case. Moreover, in this embodiment, the air intake mode of the casing can be changed without changing the rotation direction of the mixed flow fan section 30, which effectively improves the practicability of the air-conditioning cabinet.

Specifically, as shown in FIGS. 6 and 7, the air-conditioning cabinet includes an air duct. The air duct includes a first air duct 51 and a second air duct 52. The first air duct 51 is provided in the housing 10, the first end of the first air duct 51 is communicated with the lower air outlet 12, the second end of the first air duct 51 is connected with the adjustment mechanism 40, and the adjustment mechanism 40 is connected to the first The air duct 51 is enclosed as a second air duct 52, and the mixed flow fan unit 30 is arranged in the first air duct 51. This arrangement can improve the sealing performance between the adjusting mechanism 40 and the first air duct 51, so that the airflow at the downwind port 12 can smoothly enter the shell through the second air duct 52 to exchange heat with the heat exchanger.

Furthermore, the air duct further includes a third air duct 53 and a fourth air duct 54, and the air-conditioning cabinet includes a supporting part 60. The supporting portion 60 is connected to the inner wall of the housing 10. The adjustment mechanism 40 is located below the support part 60. The support part 60 is provided with an overflow channel 70. The heat exchanger 20 is connected to the support part 60. The heat exchanger 20 has a hollow structure (ie, as shown in FIG. 6, the hollow structure is The hollow cylindrical structure enclosed by the heat exchanger body), the hollow structure communicates with the second air duct 52 through the flow passage 70 to form a third air duct 53, the outer surface of the heat exchanger 20 and the housing 10 have The fourth air duct 54 is formed at a distance from each other, and the fourth air duct 54 is connected to the upwind port 11 and the third air duct 53. This arrangement can effectively improve the installation stability of the heat exchanger. It can also be effective, and at the same time can facilitate the air flow outside the shell to enter the fourth air channel 54 from the third air duct 53, or facilitate the air flow outside the shell to enter the fourth air duct 54 The air duct 54 enters the third air duct 53.

In order to effectively discharge the condensed water generated in the cabinet machine in time, a water receiving pan 61 is provided on the support 60. The water receiving pan 61 is connected to the housing 10, the water receiving pan 61 is provided with an overflow channel 70, and the water receiving pan 61 is used for collecting the condensed water generated by the heat exchanger 20.

Among them, the heat exchanger 20 is a barrel-shaped structure with an open end, the open end of the heat exchanger 20 is connected to the water receiving pan 61, the inner diameter of the open end of the heat exchanger 20 is larger than the inner diameter of the flow passage 70, and the third air duct 53 The air flow in the airflow can pass through the side wall of the heat exchanger 20 and flow into the fourth air duct 54 after heat exchange, or the airflow in the fourth air duct 54 can pass through the side wall of the heat exchanger 20 and then flow to the third air duct. Inside the air duct 53. This arrangement can increase the heat exchange area between the airflow and the heat exchanger. Wherein, an annular fourth air channel 54 is formed between the outer surface of the heat exchanger 20 and the inner wall of the shell. Of course, part of the side walls of the heat exchanger 20 can also be arranged in an installation manner connected with the side walls of the housing. Preferably, the axis of the heat exchanger 20 coincides with the axis of the shell in the vertical direction.

The adjustment mechanism 40 includes a first adjustment mechanism 41 and a second adjustment mechanism 42. The first end of the first adjustment mechanism 41 is movably connected to the second end of the first air duct 51, the second end of the first adjustment mechanism 41 is located away from the first air duct 51, and the second end of the first adjustment mechanism 41 It has a narrowing position approaching the axis of the housing 10, and the second end of the first adjusting mechanism 41 has a flaring position away from the axis of the housing 10. The first end of the second adjusting mechanism 42 is movably connected to the water receiving tray 61. The second end of the second adjustment mechanism 42 has a necked position close to the axis of the housing 10, and the second end of the second adjustment mechanism 42 has a second end away from the axis of the housing 10 (that is, the geometry of the vertical direction of the housing 10). (Center line) at the flaring position, when the first adjusting mechanism 41 and the second adjusting mechanism 42 are both in the retracted position, the first end of the first adjusting mechanism 41 is in contact with the second end of the second adjusting mechanism 42, and The first adjusting mechanism 41 and the second adjusting mechanism 42 are enclosed as a sealed second air duct 52. This arrangement makes the structure of the first adjustment mechanism 41 and the second adjustment mechanism 42 simple, and it is easy to realize the switching operation between different positions.

When the first adjustment mechanism 41 and the second adjustment mechanism 42 are in the flaring position, at least one of the first adjustment mechanism 41 and the second adjustment mechanism 42, the housing 10, the supporting portion 60, and the drain pan 61 is enclosed The second air duct 52. This arrangement ensures that no matter what state the adjustment mechanism is in, a sealed channel structure is always enclosed between the adjustment mechanism and the casing. This arrangement can avoid air leakage inside the air conditioning cabinet and improve the reliability of the cabinet.

When the first adjusting mechanism 41 and the second adjusting mechanism 42 are both located at the retraction position. The cross-sectional area of the second air duct 52 is gradually reduced in a direction away from the mixed flow fan unit 30. When the second adjusting mechanism 42 is located at the flaring position, the cross-sectional area of the air duct structure enclosed by the second adjusting mechanism 42 is gradually increased in the direction toward the mixed flow fan portion 30. By changing the cross-sectional area of the air inlet channel at the upper end of the mixed flow fan part, the mixed flow fan part 30 can achieve the function of air suction or air supply. This arrangement eliminates the need to separately install multiple fans to achieve the functions of suction or supply respectively, which effectively improves the practicability of the mixed flow fan unit 30.

Specifically, the first adjustment mechanism 41 includes a first arc-shaped adjustment plate 411. The first end of the first arc-shaped adjusting plate 411 is hinged to the end side wall of the first air duct 51, and the second end of the first arc-shaped adjusting plate 411 is located away from the first air duct 51, and the first arc-shaped adjusting plate There are multiple first arc-shaped adjusting plates 411, and a plurality of first arc-shaped adjusting plates 411 are arranged along the circumference of the first air duct 51. When each first arc-shaped adjusting plate 411 is located at the necked position, the plurality of first arc-shaped adjusting plates 411 surround Set into a circular duct structure. Wherein, a driving part may be provided inside the housing to drive the first arc-shaped adjusting plate 411 to rotate. The driving part can drive a single first arc-shaped adjusting plate 411 alone, or one driving part may simultaneously drive a plurality of first arc-shaped adjusting plates 411 to rotate. Since the first arc-shaped adjusting plate 411 is located at the flaring position, the distance between them becomes larger, so when each first arc-shaped adjusting plate 411 is at the flaring position, multiple first arc adjustments can be ensured. On the premise that the plate 411 can also be enclosed as a sealed air duct, the corresponding width and length and the curvature of the first arc-shaped adjusting plate 411 can be set.

Preferably, the second end of the first arc-shaped adjusting plate 411 is provided with a folded edge 412, and the folded edge 412 is bent toward one side of the housing 10. This arrangement can improve the reliability of the connection between the first arc-shaped adjusting plate 411 and the housing.

The second adjustment mechanism 42 includes a second arc-shaped adjustment plate 421. The first end of the second arc-shaped adjusting plate 421 is hinged to the bottom of the water receiving tray 61, and the second end of the second arc-shaped adjusting plate 421 can wrap around the first end of the second arc-shaped adjusting plate 421 and the water receiving tray 61. The hinge point is rotatably set. There are a plurality of second arc-shaped adjusting plates 421, and the plurality of second arc-shaped adjusting plates 421 are arranged along the circumferential direction of the flow passage 70. When each second arc-shaped adjusting plate 421 is located at the necked position, the plurality of second arcs The shape adjusting plate 421 is enclosed in an annular duct structure. Setting the second adjusting mechanism 42 into an arc-shaped adjusting plate structure can reduce the processing difficulty of the second adjusting mechanism. At the same time, the structure is simple and the operation reliability is high. Wherein, the driving mode of the second adjusting mechanism may be the driving mode of the first adjusting mechanism.

Further, the supporting portion 60 further includes an annular supporting platform 62. The annular support platform 62 is connected with the inner wall of the housing 10. The water receiving pan 61 is connected to the annular support platform 62 and is located above the annular support platform 62. When the second arc-shaped adjusting plate 421 is in the flaring position, the second end of the second arc-shaped adjusting plate 421 and the annular supporting platform 62 The inner peripheral surface of the seal is connected. This arrangement can improve the installation stability of the water receiving tray and at the same time improve the sealing performance between the adjusting mechanism and the housing.

The bottom of the annular support platform 62 is provided with an inclined surface. When the second arc-shaped adjusting plate 421 is at the flaring position, the lower surface of the second arc-shaped adjusting plate 421 is parallel to the inclined surface. This arrangement can effectively reduce the wind resistance of the airflow and reduce the flow noise of the airflow.

Preferably, the heat exchanger 20 has a cylindrical structure, the axis of the heat exchanger 20 is arranged in a vertical direction, and the top plate 21 is arranged at one end of the heat exchanger 20 close to the upwind 11. This arrangement allows the airflow to enter or exit only through the side walls of the heat exchanger, which increases the heat exchange area between the airflow and the heat exchanger, and improves the heat exchange performance of the air conditioning cabinet. Preferably, the heat exchanger is an evaporator.

Specifically, the air-conditioning cabinet with this structure can realize the selection of comfortable air outlet function of upper and lower convection, optimize the distribution of indoor temperature field, and improve energy utilization efficiency. Specifically, one air outlet is arranged above and below the vertical cabinet air conditioner, and the internal structure is equipped with a mixed flow fan structure. Using the characteristics of the mixed flow fan, through the transformation of the internal mechanism to achieve different air outlet modes of upper and lower convection, so as to achieve cooling and heating The mode realizes up and down circulation convection. When cooling, air is discharged from the upper air vent and returned from the lower air vent. When heating, air is discharged from the lower air vent and return air from the upper air vent. The heat recovery and utilization can be carried out according to the characteristics of cold and hot air, and the whole machine can be adjusted. Operation mode, to achieve the effect of energy saving, comfort and power saving.

As shown in Fig. 6 and Fig. 7, the inside of the shell includes a base, a mixed flow fan, an air duct, a water receiving tray, an evaporator, an adjustment mechanism, an upper air vent, a lower air vent, and a top cover. The operation of the product mainly relies on the characteristics of the mixed flow fan. The mixed flow fan is a fan between the centrifugal and axial flow fans. It can output the effects of axial and centrifugal work. After in-depth research on the mixed flow fan, the mixed flow fan has different internal pressure conditions. The lower output situation is different. In the structure shown in the figure, when the internal adjustment mechanism is fully opened and the pressure of the internal channel becomes smaller, the mixed flow fan will do more work in the axial flow mode, and the fan will suck air from the lower air outlet and send air upwards through the water The middle through hole position of the disk passes through the evaporator from both sides for heat exchange, and finally is collected to the upper air outlet for air supply. When the internal adjustment mechanism is closed to a constriction, the pressure in the internal air duct will increase, and the mixed flow fan will do more centrifugal way. The air is supplied radially and directly from the lower air outlet next to the fan, resulting in internal Suction to achieve the reverse operation mode, the upper air inlet enters the air, passes through the evaporator from the surrounding to the middle, and enters the air duct from the middle of the water tray, and is driven by the fan to send air to the lower air outlet to achieve the purpose of lower air supply.

According to another embodiment of the present application, there is provided a method for controlling an air-conditioning cabinet. The method is used to control the above-mentioned air-conditioning cabinet. The method includes the following steps: when the heating mode is selected by the controller of the air-conditioning cabinet, adjusting The mechanism 40 is located at the retracted position, and the mixed flow fan unit 30 sucks the external airflow from the upper air port 11 into the housing 10 for heat exchange with the heat exchanger 20, and then discharges it out of the housing 10 through the lower air port 12; when the cooling mode is selected by the controller When the adjusting mechanism 40 is located at the flaring position, the mixed flow fan unit 30 sucks the external airflow into the casing 10 from the downwind port 12 to exchange heat with the heat exchanger 20 and then discharges the outside of the casing 10 through the upwind port 11. Among them, the air-conditioning cabinet also includes an air supply mode. When the air supply mode is selected by the controller, the adjustment mechanism 40 is located at the retracted position, and the mixed flow fan unit 30 sucks the external air flow from the upper air port 11 into the housing 10 and then passes through the lower air port 12 Exhaust out of the housing 10, or when the air supply mode is selected by the controller, the adjusting mechanism 40 is located at the flaring position, and the mixed flow fan section 30 sucks the external air flow into the housing 10 from the lower air outlet 12, and then discharges it from the upper air outlet 11 Outside the body 10, in the air supply mode, the heat exchanger 20 is in a non-working state, that is, the heat exchanger does not perform heat exchange work.

For ease of description, spatially relative terms such as "above", "above", "above", "above", etc. can be used here to describe as shown in the figure. Shows the spatial positional relationship between a device or feature and other devices or features. It should be understood that the spatially relative terms are intended to encompass different orientations in use or operation other than the orientation of the device described in the figure. For example, if the device in the figure is inverted, then the device described as "above the other device or structure" or "above the other device or structure" will then be positioned as "below the other device or structure" or "on Under other devices or structures". Thus, the exemplary term "above" can include both orientations "above" and "below". The device can also be positioned in other different ways (rotated by 90 degrees or in other orientations), and the relative description of the space used here is explained accordingly.

In addition to the above, it should be noted that the "one embodiment", "another embodiment", "embodiment", etc. referred to in this specification refer to specific features, structures, or features described in conjunction with the embodiment. The features are included in at least one embodiment generally described in this application. The occurrence of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when describing a specific feature, structure or characteristic in combination with any embodiment, what is claimed is that the combination of other embodiments to realize such a feature, structure or characteristic also falls within the scope of the present application.

In the above-mentioned embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in an embodiment, reference may be made to related descriptions of other embodiments.

The above descriptions are only preferred embodiments of the application, and are not used to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims (20)

An air conditioner cabinet machine is characterized by comprising: A casing (10), the casing (10) having an upper air port (11) and a lower air port (12); A mixed flow fan part (30), the mixed flow fan part (30) is arranged in the housing (10); The adjustment mechanism (40), the adjustment mechanism (40) is arranged in the housing (10), the adjustment mechanism (40) has a necking position and a flaring position, when the adjustment mechanism (40) is located at the In the narrowing position, the mixed flow fan section (30) sucks the external airflow into the housing (10) from the upwind port (11), and then discharges the housing (10) through the downwind port (12). 10) Outside. The air-conditioning cabinet according to claim 1, wherein the air-conditioning cabinet comprises: A heat exchanger (20), the heat exchanger (20) is arranged in the housing (10) and is located between the upper air port (11) and the lower air port (12), and the adjustment mechanism ( 40) is located between the mixed flow fan portion (30) and the heat exchanger (20), the adjustment mechanism (40) has the retraction position that shrinks toward the axis of the housing (10), and The adjusting mechanism (40) has the flaring position that is gradually opened away from the axis of the housing (10), and when the adjusting mechanism (40) is located at the narrowing position, the mixed flow fan portion (30) The external airflow is sucked into the housing (10) from the upper air port (11) to exchange heat with the heat exchanger (20), and then discharged from the housing (10) through the lower air port (12) outer. The air-conditioning cabinet according to claim 2, characterized in that, when the adjusting mechanism (40) is located at the flaring position, the mixed flow fan section (30) directs the external air flow from the down vent (12) It is sucked into the shell (10) for heat exchange with the heat exchanger (20) and then discharged out of the shell (10) through the upwind port (11). The air-conditioning cabinet according to claim 2, wherein the air-conditioning cabinet includes an air duct, the air duct includes a first air duct (51) and a second air duct (52), and the first air duct The duct (51) is arranged in the housing (10), the first end of the first air duct (51) is in communication with the downwind port (12), and the first end of the first air duct (51) The two ends are connected with the adjusting mechanism (40), the adjusting mechanism (40) and the first air duct (51) surround the second air duct (52), and the mixed flow fan part (30) ) Is set in the first air duct (51). The air-conditioning cabinet according to claim 4, wherein the air duct further comprises a third air duct (53) and a fourth air duct (54), and the air-conditioning cabinet comprises: The supporting portion (60) is connected to the inner wall of the housing (10), the adjusting mechanism (40) is located below the supporting portion (60), and the supporting portion (60) ) Is provided with an overflow channel (70), and the heat exchanger (20) is connected with the support part (60). The air-conditioning cabinet according to claim 5, wherein the heat exchanger (20) is a hollow structure, and the hollow structure passes through the flow passage (70) and the second air duct (52) Communicate with each other to form the third air duct (53), and the outer surface of the heat exchanger (20) is arranged at a distance from the housing (10) to form the fourth air duct (54), so The fourth air duct (54) is in communication with the upwind port (11) and the third air duct (53). The air-conditioning cabinet according to claim 5, characterized in that the supporting part (60) comprises: The water receiving tray (61), the water receiving tray (61) is connected with the housing (10), the water receiving tray (61) is provided with the overflow channel (70), the water receiving The disc (61) is used to collect the condensed water generated by the heat exchanger (20). The air-conditioning cabinet according to claim 7, wherein the heat exchanger (20) is a barrel-shaped structure with one end open, and the open end of the heat exchanger (20) is connected to the water receiving tray (61). ) Is connected, the inner diameter of the open end of the heat exchanger (20) is greater than the inner diameter of the flow passage (70), and the airflow in the third air channel (53) can pass through the heat exchanger (20) After heat exchange, the side wall flows into the fourth air passage (54), or the air flow in the fourth air passage (54) can pass through the side wall of the heat exchanger (20) and flow to Inside the third air duct (53). The air-conditioning cabinet according to claim 7, wherein the adjustment mechanism (40) comprises: The first adjusting mechanism (41), the first end of the first adjusting mechanism (41) and the second end of the first air duct (51) are movably connected, the first adjusting mechanism (41) The second end is located away from the first air duct (51), the second end of the first adjustment mechanism (41) has the retraction position approaching the axis of the housing (10), and the The second end of the first adjustment mechanism (41) has the flaring position away from the axis of the housing (10); The second adjusting mechanism (42), the first end of the second adjusting mechanism (42) is movably connected to the water receiving tray (61), and the second end of the second adjusting mechanism (42) has a direction The narrowing position where the axis of the housing (10) is close, and the second end of the second adjusting mechanism (42) has the flaring position far from the axis of the housing (10), when When the first adjustment mechanism (41) and the second adjustment mechanism (42) are both located in the retraction position, the first end of the first adjustment mechanism (41) and the second adjustment mechanism (42) ) Is in contact with the second end, and the first adjustment mechanism (41) and the second adjustment mechanism (42) surround the sealed second air duct (52). The air-conditioning cabinet according to claim 9, characterized in that, when the first adjusting mechanism (41) and the second adjusting mechanism (42) are both located at the flaring position, the first adjusting mechanism (41) and at least one of the second adjusting mechanism (42), the housing (10), the supporting portion (60) and the water receiving tray (61) are enclosed to form the second air duct ( 52). The air-conditioning cabinet according to claim 9, characterized in that, when the first adjustment mechanism (41) and the second adjustment mechanism (42) are both located at the retraction position, the second air duct The area of the cross section of (52) is gradually reduced in a direction away from the mixed flow fan part (30). The air-conditioning cabinet according to claim 9, characterized in that, when the first adjusting mechanism (41) and the second adjusting mechanism (42) are both located at the flaring position, the second adjusting mechanism (42) The area of the cross section of the enclosed air duct structure is gradually increased in the direction toward the mixed flow fan portion (30). The air-conditioning cabinet according to claim 9, characterized in that the first adjustment mechanism (41) comprises: The first arc-shaped adjusting plate (411), the first end of the first arc-shaped adjusting plate (411) is hinged with the end side wall of the first air duct (51), and the first arc adjusting The second end of the plate (411) is located away from the first air duct (51), there are multiple first arc-shaped adjusting plates (411), and multiple first arc-shaped adjusting plates (411) are arranged along the The first air duct (51) is arranged in the circumferential direction, and when each of the first arc-shaped adjusting plates (411) is located at the retracted position, a plurality of the first arc-shaped adjusting plates (411) are enclosed to form Annular duct structure. The air conditioning cabinet according to claim 13, wherein the second end of the first arc-shaped adjusting plate (411) is provided with a folding edge (412), and the folding edge (412) faces the housing (10) One side is bent. The air-conditioning cabinet according to claim 9, characterized in that the second adjusting mechanism (42) comprises: A second arc-shaped adjusting plate (421), the first end of the second arc-shaped adjusting plate (421) is hinged to the bottom of the water receiving tray (61), and the second arc-shaped adjusting plate (421) The second end of the second arc-shaped adjusting plate (421) can be rotatably arranged around the hinge point of the first end of the second arc-shaped adjusting plate (421) and the water receiving plate (61). One, a plurality of the second arc-shaped adjusting plates (421) are arranged along the circumferential direction of the flow passage (70), and when each of the second arc-shaped adjusting plates (421) is located at the retraction position, A plurality of the second arc-shaped adjusting plates (421) are arranged in an annular air duct structure. The air-conditioning cabinet according to claim 15, characterized in that the supporting part (60) further comprises: Annular support platform (62), the annular support platform (62) is connected with the inner wall of the housing (10), the water receiving tray (61) is connected with the annular support platform (62) and is located Above the annular support platform (62), when the second arc-shaped adjusting plate (421) is located at the flaring position, the second end of the second arc-shaped adjusting plate (421) is in contact with the annular support The inner peripheral surface of the table (62) is connected in a sealed manner. The air-conditioning cabinet according to claim 16, wherein the bottom of the annular support platform (62) is provided with an inclined surface, and when the second arc-shaped adjusting plate (421) is located at the flaring position, the The lower surface of the second arc-shaped adjusting plate (421) is parallel to the inclined surface. The air conditioning cabinet according to claim 2, wherein the heat exchanger (20) has a cylindrical structure, the axis of the heat exchanger (20) is arranged in a vertical direction, and the heat exchanger (20) A top plate (21) is provided at one end of 20) close to the upwind opening (11). A method for controlling an air-conditioning cabinet, the method is used to control the air-conditioning cabinet according to any one of claims 1 to 18, characterized in that the method includes the following steps: When the heating mode is selected by the controller of the air-conditioning cabinet, the adjusting mechanism (40) is located at the retracted position, and the mixed flow fan section (30) sucks in the external air flow from the upper air port (11) After the heat exchange between the inside of the housing (10) and the heat exchanger (20) is performed, the heat is discharged out of the housing (10) through the downwind port (12); When the cooling mode is selected by the controller, the adjusting mechanism (40) is located at the flaring position, and the mixed flow fan section (30) sucks the external air flow into the housing ( 10) After performing heat exchange between the inside and the heat exchanger (20), the heat is discharged out of the shell (10) through the upwind port (11). The method according to claim 19, characterized in that the air-conditioning cabinet further comprises an air supply mode, and when the air supply mode is selected by the controller, the adjustment mechanism (40) is located at the retracted position, The mixed flow fan unit (30) sucks the external airflow into the casing (10) from the upwind port (11), and then discharges it out of the casing (10) through the downwind port (12), or when When the air supply mode is selected by the controller, the adjusting mechanism (40) is located at the flaring position, and the mixed flow fan section (30) sucks the external air flow into the housing ( 10) After inside, discharge out of the housing (10) through the upwind port (11); Wherein, in the air supply mode, the heat exchanger (20) is in a non-working state.

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