CN110486815B

CN110486815B - Indoor unit of cabinet air conditioner

Info

Publication number: CN110486815B
Application number: CN201910778628.7A
Authority: CN
Inventors: 刘光朋; 曾福祥; 史为品; 王彦生
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2023-11-17
Anticipated expiration: 2039-08-22
Also published as: CN110486815A

Abstract

The application relates to the technical field of air conditioning, in particular to a cabinet air conditioner indoor unit. The application aims to solve the problem of unsatisfactory heat exchange effect of the heat exchanger of the existing cabinet air conditioner indoor unit. For this purpose, the cabinet air conditioner indoor unit comprises a machine body, wherein an air inlet and a first air outlet are formed in the machine body, a humidifying device is arranged at the first air outlet, an air supply fan, a heat exchanger and a water receiving disc are arranged in the machine body, and the water receiving disc is arranged below the heat exchanger; the heat exchanger comprises a coil, the coil is enclosed into a cylindrical structure, and one end of the cylindrical structure is closed. The coil pipe of the heat exchanger arranged in the machine body of the cabinet air conditioner indoor unit is enclosed to be of a cylindrical structure, and one end of the cylindrical structure is closed, so that when air flows through the heat exchanger, the air flow inevitably flows through the side part of the cylindrical structure, and then the air flow can be fully and uniformly heat-exchanged with the coil pipe, and the heat exchange effect of the heat exchanger is improved.

Description

Indoor unit of cabinet air conditioner

Technical Field

The application relates to the technical field of air conditioning, in particular to a cabinet air conditioner indoor unit.

Background

As air conditioners are widely used in thousands of households, the requirements of users on the use performance of the air conditioners are also increasing. Taking a cabinet air conditioner as an example, the performance of the cabinet air conditioner generally depends on the heat exchange efficiency under the same condition, and the heat exchange efficiency has a direct relation with the heat exchange area, and the larger the heat exchange area is, the higher the heat exchange efficiency is generally.

The structure and arrangement of the heat exchanger directly determine the size of the heat exchange area and the heat exchange efficiency. In the existing cabinet air conditioner, the heat exchanger is usually obliquely arranged in the air conditioner shell or attached to the air inlet, and the coils of the heat exchanger are arranged in an S shape from one end to the other end, but the arrangement mode makes contact heat exchange between the air flow and the heat exchanger not uniform, so that the heat exchange effect is not ideal.

Accordingly, there is a need in the art for a new indoor unit of a cabinet air conditioner that addresses the above-described problems.

Disclosure of Invention

In order to solve the problems in the prior art and solve the problem that the heat exchange effect of a heat exchanger of an existing cabinet air conditioner indoor unit is not ideal, the application provides the cabinet air conditioner indoor unit, which comprises a machine body, wherein an air inlet and a first air outlet are arranged on the machine body, a humidifying device is arranged at the first air outlet, an air supply fan, the heat exchanger and a water receiving disc are arranged in the machine body, and the water receiving disc is arranged below the heat exchanger; the heat exchanger comprises a coil, wherein the coil is surrounded into a cylindrical structure, and one end of the cylindrical structure is closed.

In the preferred technical solution of the indoor unit of the cabinet air conditioner, the tubular structure includes an upstream end and a downstream end along the airflow direction, the upstream end is closed, and the downstream end is formed with an opening.

In the preferred technical scheme of the cabinet air conditioner indoor unit, the water receiving disc comprises a circular disc and an annular disc, wherein the circular disc and the annular disc are vertically arranged, and are communicated through a drainage tube.

In the preferred technical scheme of the cabinet air conditioner indoor unit, the machine body comprises a columnar shell and an annular air outlet structure arranged at the top of the columnar shell, the air supply fan, the heat exchanger and the water receiving disc are arranged in the columnar shell, and the annular air outlet structure is provided with the first air outlet.

In the preferred technical scheme of the cabinet air conditioner indoor unit, the annular air outlet structure comprises an inner annular surface and an outer annular surface, the outer annular surface is sleeved outside the inner annular surface and surrounds the inner annular surface to form an air outlet cavity, the front end of the outer annular surface and the front end of the inner annular surface are provided with the first air outlet, the rear end of the outer annular surface is in closed connection with the rear end of the inner annular surface, the bottom end of the outer annular surface is further provided with a vent hole, and the air outlet cavity is communicated with the columnar shell through the vent hole.

In the preferred technical scheme of the cabinet air conditioner indoor unit, the outer ring surface is further provided with a second air outlet, the first air outlet is provided with a first baffle mechanism, the second air outlet is provided with a second baffle mechanism, the first baffle mechanism can close or open the first air outlet when being set to act, and the second baffle mechanism can close or open the second air outlet when being set to act.

In the preferred technical scheme of the indoor unit of the cabinet air conditioner, the humidifying device comprises a water tank and an atomizer arranged in the water tank, and the water tank is fixedly connected to the bottom of the inner ring surface.

In the preferable technical scheme of the cabinet air conditioner indoor unit, the air supply fan is a digital turbine motor.

In the above preferred technical solution of the indoor unit of a cabinet air conditioner, the indoor unit of a cabinet air conditioner further includes a base, and the machine body is rotatably connected with the base.

In the above preferred technical solution of the indoor unit of a cabinet air conditioner, a gap is formed between the machine body and the base, and the air inlet is disposed at the bottom of the machine body.

The coil pipe of the heat exchanger arranged in the machine body of the cabinet air conditioner indoor unit is enclosed to be of a cylindrical structure, and one end of the cylindrical structure is closed, so that when air flows through the heat exchanger, the air flow inevitably flows through the side part of the cylindrical structure, and then the air flow can be fully and uniformly heat-exchanged with the coil pipe, and the heat exchange effect of the heat exchanger is improved. In addition, by arranging the humidifying device at the first air outlet, the water vapor discharged by the humidifying device can be uniformly mixed with the air flow by the air supply effect of the first air outlet and sent to all corners of the room.

Further, by arranging the tubular structure in such a manner that the upstream end is closed and the downstream end is formed with an opening, so that when the air flow is blown to the heat exchanger, the whole air flow is blocked by the upstream end and uniformly dispersed to the side of the tubular structure, enters the inside of the tubular structure from the side of the tubular structure, and finally flows out through the opening of the downstream end of the tubular structure, it can be seen that this arrangement can more uniformly disperse the air flow to the side of the tubular structure to contact the heat exchanger for heat exchange.

Further, the water receiving disc is arranged into a split type form of arranging the circular disc and the annular disc up and down, so that the problem that the water receiving disc cannot be arranged below the heat exchanger when the heat exchanger is horizontally arranged is solved ingeniously, and the collection of condensed water is realized on the premise of not affecting air inlet.

Further, through setting up annular air-out structure at the top of column shell for the air conditioner possesses brand-new air outlet structure and form, makes the air-out volume of air conditioner bigger, and the air supply area is wide, and the range is far, has subverted traditional cabinet-type air conditioner product iterative closed thinking, promotes the development revolution of air conditioner.

Further, the annular air outlet is structurally provided with the first air outlet and the second air outlet, and the first air outlet and the second air outlet are respectively provided with the baffle plate mechanism, so that the air conditioner is provided with a brand-new air outlet structure and two air outlet modes (a spraying mode and a diffusion mode), and a user can flexibly select and adjust the air outlet modes based on own needs, thereby meeting various air supply needs of the user and improving user experience.

Further, through with organism and base swivelling joint for the air conditioner can freely rotate when the installation, conveniently finds best installation angle, reduces the installation degree of difficulty, improves the suitability of air conditioner.

Further, a gap is formed between the machine body and the base, and the air inlet is formed in the bottom of the machine body, so that the area of the air inlet is larger, the air inlet quantity is larger, and the heat exchange effect and the heat exchange efficiency are improved.

Drawings

The cabinet air-conditioner indoor unit of the present application is described below with reference to the accompanying drawings. In the accompanying drawings:

fig. 1 is a schematic structural diagram of an indoor unit of a cabinet air conditioner according to an embodiment of the present application;

FIG. 2A is a perspective view of a heat exchanger in one embodiment of the present application, shown with one end closed;

FIG. 2B is a top view of a heat exchanger in one embodiment of the application, shown with an opening at one end;

FIG. 2C is a schematic view of a heat exchanger in an expanded state according to an embodiment of the present application;

FIG. 3A is a cross-sectional view of the annular air-out structure of the present application in a first air-out mode;

FIG. 3B is a cross-sectional view of the annular air-out structure of the present application in a second air-out mode;

fig. 4A is a block diagram of a first embodiment of a drip tray of the present application;

fig. 4B is a block diagram of a second embodiment of a drip tray of the present application;

fig. 5A is a front cross-sectional view of the sterilization and purification module of the present application;

FIG. 5B is a top view of the sterilization and decontamination module of the present application;

fig. 6 is a schematic diagram illustrating the operation of an indoor unit of a cabinet air conditioner according to a first embodiment of the present application;

fig. 7 is a block diagram of an indoor unit of a cabinet air conditioner according to a second embodiment of the present application;

FIG. 8 is a block diagram of a fresh air module of the present application;

fig. 9A is a schematic diagram illustrating the operation of a first fresh air mode of an indoor unit of a cabinet air conditioner according to a second embodiment of the present application;

fig. 9B is a schematic diagram illustrating operation of a second fresh air mode of an indoor unit of a cabinet air conditioner according to a second embodiment of the present application;

fig. 9C is a schematic diagram illustrating the operation of the third fresh air mode of the indoor unit of the cabinet air conditioner according to the second embodiment of the present application.

Reference numerals:

1. a body; 11. a cylindrical housing; 111. an air inlet; 12. an annular air outlet structure; 121. an inner annulus; 122. an outer annulus; 123. a first air outlet; 124. a second air outlet; 125. a first flap mechanism; 126. a second flap mechanism; 2. a humidifying device; 21. a water tank; 22. an atomizer; 3. an air supply fan; 4. a heat exchanger; 41. a coiled pipe; 411. a straight pipe section; 412. a curved pipe section; 42. a fin; 5. a water receiving tray; 51. a circular disc; 52. an annular disc; 53. a drainage tube; 6. a base; 7. a sterilization and purification module; 71. a HEPA filter layer; 72. a cold catalyst filter layer; 73. an anion sterilizing lamp; 74. an ion transformer; 8. a fresh air module; 81. a columnar case; 811. an air suction port; 812. an air outlet; 82. a fresh air fan; 83. a variable speed drive mechanism; 831. a driving motor; 832. a gear set; 833. an electric fork.

Detailed Description

Preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present application, and are not intended to limit the scope of the present application. For example, although the blower fan is shown as being disposed above the heat exchanger, this positional relationship is not constant and can be adjusted by those skilled in the art as desired to suit a particular application. If the air supply fan is obviously arranged below the water receiving disc, etc. As another example, although the following example is an application of the heat exchanger of the present application to an indoor unit of a cabinet air conditioner, it is apparent that the application of the heat exchanger of the present application is not limited thereto, and the heat exchanger of the present application may be applied to a ceiling air conditioner or other types of air conditioners.

It should be noted that, in the description of the present application, terms such as "center", "upper", "lower", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.

Example 1

The heat exchanger of the present application will be described with reference to fig. 2A and 2B first. Wherein fig. 2A is a perspective view of a heat exchanger in an embodiment of the present application, wherein one end of the heat exchanger is shown closed; FIG. 2B is a top view of a heat exchanger in one embodiment of the application, shown with an opening at one end; fig. 2C is a schematic view of a heat exchanger according to an embodiment of the present application in an expanded state.

As shown in fig. 2A and 2B, in order to solve the problem of non-ideal heat exchange effect of the heat exchanger of the existing indoor unit of the cabinet air conditioner, the application provides a heat exchanger, wherein the heat exchanger 4 comprises a coil 41, the coil 41 is enclosed into a cylindrical structure, one end of the cylindrical structure is closed, and the other end of the cylindrical structure is provided with an opening. As one possible example, the heat exchanger includes a coil 41 and a bottom plate 43, the coil 41 having a cylindrical structure, and the bottom plate being provided at one end of the coil 41 to close one end of the coil 41. Of course, in practical application, the manner of closing one end of the tubular coil 41 is not limited to the above example, and other manners may be adopted, for example, the coil may be directly arranged into a tubular structure with one end closed and one end having an opening, and a person skilled in the art may set the specific structure of the coil according to the practical application scenario, so long as the tubular structure is a tubular structure with one end closed and one end open.

The advantages of the above arrangement are: by enclosing the coil 41 into a tubular structure and closing one end of the tubular structure, when the air flows through the heat exchanger, the air cannot flow in from one end of the tubular structure and directly flow out from the other end, but necessarily flows through the side of the tubular structure, so that the air can perform sufficient and uniform heat exchange with the coil 41, and the heat exchange effect of the heat exchanger is improved.

With continued reference to fig. 2A-2C, in a preferred embodiment, the tubular structure includes an upstream end and a downstream end in the direction of airflow, wherein the upstream end of the tubular structure is closed and the downstream end of the tubular structure is formed with an opening. It should be noted that, the "airflow direction" in the above description may be understood as an airflow direction at a mounting position of the heat exchanger, for example, for a heat exchanger disposed inside an indoor unit of an air conditioner, the "airflow direction" may be understood as an airflow direction of the indoor unit of the air conditioner from an air inlet to an air outlet.

By arranging the tubular structure in a structure with the upstream end closed and the downstream end formed with openings so that the air flow is firstly blocked by the upstream end and uniformly dispersed to the side of the tubular structure when blowing to the heat exchanger, the air flow enters the interior of the tubular structure from the side of the tubular structure and finally flows out through the openings of the downstream end of the tubular structure, the arrangement can be seen that the air flow is more uniformly dispersed to the side of the tubular structure to be in contact with the coil pipe for heat exchange.

Further, as shown in fig. 2B and 2C, the coil 41 includes a plurality of straight tube sections 411 connected end to end, with adjacent two straight tube sections 411 being connected by a curved tube section 412. The plurality of straight tube sections 411 are spaced apart along the circumference of the tubular structure, and the axes of the plurality of straight tube sections 411 are parallel to one another. Each straight tube segment 411 has a plurality of fins 42 distributed at intervals along the axial direction thereof, wherein the fins 42 extend outwardly in the circumferential direction of the straight tube segment 411, and the fins 42 of adjacent straight tube segments 411 are connected to each other in the circumferential direction of the tubular structure to form an annular structure.

By arranging the plurality of straight tube sections 411 of the coil 41 to be spaced apart in the axial direction of the tubular structure with the axes of the plurality of straight tube sections 411 parallel to each other, the plurality of straight tube sections 411 of the coil 41 are uniformly distributed on the side of the tubular structure, contributing to an improvement in heat exchange efficiency. By connecting the fins 42 of the adjacent straight tube sections 411 to each other in the circumferential direction of the cylindrical structure to form an annular structure, the heat radiation area of the fins 42 can be increased, so that the air flow can be sufficiently contacted with the fins 42, and the heat exchange effect is improved.

Of course, the above preferred embodiments are merely for illustrating the principles of the present application, and are not intended to limit the scope of the application, and those skilled in the art may adjust the above arrangement to adapt the present application to a more specific application scenario.

For example, in practical applications, the closed end of the tubular structure may be the upstream end or the downstream end. The heat exchanger can be reasonably arranged by a person skilled in the art as long as one of the two ends of the cylindrical structure of the heat exchanger is guaranteed to be closed, and the other end is guaranteed to be open.

For another example, the coil 41 of the heat exchanger of the present application may take other forms besides the above-mentioned form in which the plurality of straight tube sections 411 are spaced apart along the circumferential direction of the cylindrical structure and the axes of the plurality of tube sections are parallel to each other, and those skilled in the art can flexibly set the form of the coil 41 according to the actual application scenario.

For another example, the arrangement of the fins 42 on each tube section is not limited to the above example, but may be other arrangements, and those skilled in the art can reasonably set the arrangement of the fins 42 according to actual needs. As another alternative embodiment, each straight tube segment 411 has a plurality of fins 42 spaced apart along its axial direction, and the fins 42 of adjacent straight tube segments 411 are staggered along the circumferential direction of the tubular structure. Through the arrangement, the heat radiating area of the fins can be increased, and heat can be conducted in a staggered manner, so that the heat exchanging effect is improved.

It will be appreciated that the alternative embodiments described above, as well as the alternative and preferred embodiments, may also be used in cross-fit, combining new embodiments to suit more specific application scenarios.

Example 2

Referring now to fig. 1 to 6, a schematic structural diagram of a cabinet air conditioner indoor unit according to an embodiment of the present application will be described. As shown in fig. 1, the application further provides a cabinet air conditioner indoor unit, which comprises a machine body 1, wherein an air inlet 111 and a first air outlet 123 (refer to fig. 3A) are arranged on the machine body 1, a humidifying device 2 is arranged at the first air outlet 123, a sterilization and purification module 7, a water pan 5, a heat exchanger 4 and an air supply fan 3 are sequentially arranged in the machine body 1 along the air flow direction, the water pan 5 is arranged below the heat exchanger 4, and the sterilization and purification module 7 is arranged at the air inlet 111. The heat exchanger is a heat exchanger having a cylindrical structure in embodiment 1, and the structure of the heat exchanger may refer to embodiment 1 described above, and will not be described in detail in this embodiment. As shown in fig. 1, the end of the cylindrical structure is disposed facing the air inlet, the bottom end of the cylindrical structure is closed, and the top end of the cylindrical structure is formed with an opening.

The advantages of the above arrangement are: through being provided with above-mentioned heat exchanger in organism inside for when the air current flows through the heat exchanger, the air current can necessarily flow through tubular structure's lateral part, so, the air current can carry out abundant and even heat exchange with the coil pipe, thereby makes cabinet air conditioner indoor set's heat exchange efficiency and heat exchange effect all obtain very big promotion, makes cabinet air conditioner indoor set's air-out temperature more even, and then has improved user experience. By providing the humidifying device 2 at the first air outlet 123, the water vapor discharged from the humidifying device 2 can be uniformly mixed with the air flow and sent to all corners of the room by the air supply effect of the first air outlet 123. In addition, except setting up the purification module that disinfects at the air intake for indoor set can also effectively circulate the purification of disinfecting to the room air when the operation, improves the cleanliness of room air, reduces the particle that floats in the air.

With continued reference to fig. 1, in one possible embodiment, the cabinet air conditioner indoor unit comprises a base 6 and a body 1, the body 1 being rotatably connected to the base 6, such as by a plain bearing free-wheeling connection, or by a rotary damping bearing or the like rotary connection with damping. After the connection, a gap is formed between the machine body 1 and the base 6, the air inlet 111 is arranged at the bottom of the machine body 1, and a guiding inclined plane is further arranged on one side of the base 6 close to the machine body 1. The machine body 1 comprises a columnar shell 11 and an annular air outlet structure 12 arranged at the top of the columnar shell 11, the water pan 5, the heat exchanger 4 and the air supply fan 3 are sequentially arranged in the columnar shell 11 from bottom to top, and the first air outlet 123 is formed in the annular air outlet structure 12. The air supply fan 3 adopts a digital turbine motor (or digital motor) which is a motor with the characteristics of high rotating speed, strong suction force and the like, and the highest rotating speed of the motor is approximately 11 ten thousand revolutions per minute and is 4-5 times of the rotating speed of the motor of the common fan.

Through with organism 1 and base 6 swivelling joint for the air conditioner can freely rotate when the installation, conveniently finds best installation angle, reduces the installation degree of difficulty, improves the suitability of air conditioner. Through forming the clearance between organism 1 and base 6 to set up air intake 111 in the bottom of organism 1, make the area of air intake 111 bigger, the intake is bigger, thereby is favorable to the circulation of indoor air's a large scale and heat transfer effect and heat transfer efficiency's improvement. The base 6 is provided with a guiding inclined plane so as to be capable of guiding the air inlet initially and improving the smoothness of the air inlet. By adopting the digital turbine motor as the air supply fan 3, the air conditioner has strong wind power and large air supply capacity, and meets the requirements of users on rapid cooling and heating.

One embodiment of the annular air-out structure is described below with reference to fig. 1, 3A and 3B. FIG. 3A is a cross-sectional view of the annular air-out structure of the present application in a first air-out mode; fig. 3B is a cross-sectional view of the annular air-out structure of the present application in a second air-out mode.

As shown in fig. 1, 3A and 3B, the annular air-out structure 12 includes an inner annular surface 121 and an outer annular surface 122, the outer annular surface 122 is sleeved on the outer side of the inner annular surface 121 and forms an air-out cavity with the inner annular surface 121, a first air outlet 123 is formed between the front end of the outer annular surface 122 (i.e. the right end of the outer annular surface 122 in fig. 3A) and the front end of the inner annular surface 121 (i.e. the right end of the inner annular surface 121 in fig. 3A), a second air outlet 124 is formed in the side surface of the outer annular surface 122, and the rear end of the outer annular surface 122 is in closed connection with the rear end of the inner annular surface 121. The first air outlet 123 is provided with a first blocking piece mechanism 125, and the first blocking piece mechanism 125 can selectively open or close the first air outlet 123. Similarly, a second flap mechanism 126 is disposed at the second air outlet 124, and the second flap mechanism 126 can selectively open or close the second air outlet 124. The bottom end of the outer ring surface 122 is further provided with a vent hole (not shown in the figure), and after the annular air outlet structure 12 is fixedly connected to the cylindrical shell 11, the air outlet cavity is communicated with the cylindrical shell 11 through the vent hole. The humidifying device 2 comprises a water tank 21 and an atomizer 22 arranged in the water tank 21, wherein the atomizer 22 can be an ultrasonic atomizer or an air compression atomizer, and the like, the water tank 21 is fixedly connected with the bottom of the inner annular surface 121, and the atomizer 22 can atomize liquid in the water tank 21 into water mist.

It will be understood by those skilled in the art that although not specifically shown in the drawings of the present embodiment, the first shutter mechanism 125 and the second shutter mechanism 126 may be implemented in various manners, as long as the arrangement manner can effectively realize the opening and closing control of the first air outlet 123 and the second air outlet 124. For example, the first baffle mechanism 125 and/or the second baffle mechanism 126 may be implemented in the form of a linear motor controlled annular retainer ring, and the linear motor drives the annular retainer ring to move back and forth in the air outlet cavity to implement opening and closing control of the first air outlet 123 and/or the second air outlet 124; or the linear motor can be replaced by a combination of a rotary motor, a gear rack, a chain and the like. For another example, the first baffle mechanism 125 and/or the second baffle mechanism 126 may implement opening and closing control of the second air outlet 124 through electromagnetic adsorption, that is, the retainer ring is made of a metal material, an electromagnetic coil is disposed in the air outlet cavity, and an elastic member is disposed between the retainer ring and the inner annular surface 121 or the outer annular surface 122, when the power is on, the electromagnetic coil generates magnetic force to attract the retainer ring, and the elastic member stores elastic potential energy, so as to open the first air outlet 123 or the second air outlet 124; when the electromagnetic coil is powered off, the retainer ring returns to the initial position under the action of the elastic member, so that the first air outlet 123 or the second air outlet 124 is closed. For another example, one of the first shutter mechanism 125 and the second shutter mechanism 126 may be omitted, and the selective opening of either the first air outlet 123 or the second air outlet 124 may be achieved by controlling the movement of the one shutter mechanism.

Further preferably, an air guiding structure is further arranged on the inner annular surface 121 and/or the outer annular surface 122, and the air guiding structure is arranged to enable the width of the air outlet at the air outlet to be gradually reduced. For example, the air guiding structure adopts two arc plates as shown in fig. 3A or 3B, and the two arc plates are arranged to gradually narrow the outlet widths of the first air outlet 123 and the second air outlet 124, so that when the air flow passes through the air outlet, a venturi effect is generated to accelerate the flow speed, and the spraying effect is realized. And when the air is sprayed, negative pressure is generated near the annular air outlet, and the negative pressure can attract air near the annular air outlet to flow together, so that the circulation of indoor air is realized, and the air supply quantity is effectively improved. Of course, the air guiding structure may be any other arrangement manner, as long as the arrangement manner can gradually narrow the air outlet width of the first air outlet 123 and/or the second air outlet 124, which is not described herein.

The advantages of the above arrangement are: through setting up annular air-out structure 12 at the top of column shell 11, set up first air outlet 123 and second air outlet 124 on the annular air-out structure 12 to first air outlet 123 and second air outlet 124 each dispose the separation blade mechanism, make the air conditioner possess brand-new air outlet structure and two kinds of air-out forms, spray mode and diffusion mode, the user can select the air-out mode in a flexible way based on needs. The jet mode can realize the effect of jetting air, the range is far, and the air output is larger; the diffusion mode is to the both sides air supply by the second air outlet 124, and the air supply area is wide, can form the embracing air flow in the indoor, strengthens the circulation of indoor air. In addition, the annular air outlet is arranged, so that the air conditioner is novel in structure, the iterative sealing thought of a traditional cabinet product is subverted, and the development and transformation of the air conditioner are promoted. Through the bottom of the inner ring surface 121 with water tank 21 fixed connection for the water smoke after the atomizer 22 atomizing can be directly sent to indoor each corner with the air current mixture of air outlet exhaust, guarantees the humidification effect.

One embodiment of the drip tray of the present application is described below with reference to fig. 4A and 4B. Fig. 4A is a block diagram of a first embodiment of a drip tray of the present application; fig. 4B is a structural view of a second embodiment of the drip tray of the present application.

As shown in fig. 4A and 4B, the water receiving tray 5 includes a circular tray 51 and an annular tray 52 which are vertically arranged up and down and are communicated with each other through a drain pipe 53. Specifically, in a preferred embodiment, the circular disc 51 may be disposed above the annular disc 52 as shown in fig. 4A, and there is a certain contact between the outer edge of the circular disc 51 and the inner edge of the annular disc 52 in the vertical direction. Of course, the circular disk 51 may be disposed below the annular disk 52 as shown in fig. 4B, and there is a certain degree of overlap between the outer edge of the circular disk 51 and the inner edge of the annular disk 52 in the vertical direction.

The water receiving disc 5 adopts a split design of arranging the circular disc 51 and the annular disc 52 up and down, so that the problem that the water receiving disc 5 cannot be arranged below the heat exchanger 4 in the horizontal arrangement is skillfully solved, and the collection of condensed water is realized on the premise of not influencing air intake. Of course, the specific form of the water tray 5 is not limited, and any modification is intended to fall within the scope of the present application without departing from the split-up and split-down design of the present application.

Next, a specific embodiment of the sterilizing and purifying module of the present application will be described with reference to fig. 5A and 5B. Wherein, fig. 5A is a front cross-sectional view of the sterilization and purification module of the present application; fig. 5B is a top view of the sterilization and purification module of the present application.

As shown in fig. 5A and 5B, the sterilizing and purifying module 7 is in a cake shape, and includes a HEPA filter layer 71, a cold catalyst filter layer 72, a negative ion sterilizing lamp 73 and an ion transformer 74, the cold catalyst filter layer 72 is located at the top of the cake shape, the HEPA filter layer 71 is located at the bottom of the cake shape, the ion transformer 74 is located at the center of the cake shape, and the negative ion sterilizing lamp 73 is provided with a plurality of and annular around the side of the ion transformer 74.

Among them, the HEPA filter layer 71 includes three layers (primary filter layer, charge layer, electrostatic dust layer) whose particle removal efficiency of 0.3 μm or less can be 99.97% or more.

The cold catalyst filter layer 72 can perform catalytic reaction at normal temperature, and decompose various harmful and odorous gases into harmless and odorless substances at normal temperature and normal pressure, and the harmful gases are removed from formaldehyde, benzene, dimethylbenzene, toluene, TVOC and the like by being converted from pure physical adsorption into chemical adsorption and simultaneously decomposed to generate water and carbon dioxide. In the catalytic reaction process, the cold catalyst does not directly participate in the reaction, and the cold catalyst is not changed or lost after the reaction and plays a role for a long time. The cold catalyst is nontoxic, non-corrosive and non-combustible, the reaction products are water and carbon dioxide, no secondary pollution is generated, and the service life of the adsorption material is greatly prolonged.

The ion transformer 74 is capable of generating a large amount of negative ions in an energized state, and studies have shown that: the air contains a proper amount of anions, so that the air can be efficiently dedusted, sterilized and purified, oxygen molecules in the air can be activated to form oxygen-carrying anions, air molecules are activated, lung functions of a human body are improved, metabolism is promoted, disease resistance is enhanced, a central nervous system is regulated, and the human body is refreshed and full of vigor.

The negative ion sterilization spotlight is annularly arranged on the side surface of the ion converter 74, can irradiate and sterilize the air passing through the sterilization and purification module 7, and can play a role in wide irradiation range and no dead angle in sterilization due to the arrangement mode of surrounding the ion converter 74.

It should be noted that, although the foregoing embodiment is described in connection with the sterilizing and purifying module 7 including the HEPA filter layer 71, the cold catalyst filter layer 72, the negative ion sterilizing lamp 73 and the ion inverter 74, one skilled in the art may select one or more of them as the sterilizing and purifying module 7 after being recombined for a specific application scenario to be installed in the cabinet air conditioner indoor unit, and the combination does not deviate from the principle of the present application, and therefore, it is supposed to fall within the protection scope of the present application.

Finally, referring to fig. 6, the operation principle of the indoor unit of the cabinet air conditioner according to the present application will be briefly described. Fig. 6 is a schematic diagram illustrating an operation of an indoor unit of a cabinet air conditioner according to a first embodiment of the present application.

As shown in fig. 6, when the indoor unit of the cabinet air conditioner works, the digital turbine motor rotates to suck indoor air into the cylindrical shell 11 from the air inlet 111 at the bottom of the cylindrical shell 11, and the air smoothly flows through the water receiving disc 5 arranged separately after being sterilized and purified by the sterilizing and purifying module 7, and is sent into the air supply cavity by the digital turbine motor after being subjected to uniform heat exchange with the heat exchanger 4 arranged in a double-layer spiral manner. The air entering the air supply cavity is accelerated to be sprayed into the room from the first air outlet 123 or the second air outlet 124, and in the spraying process, the air is mixed with the water mist atomized by the atomizer 22.

Although the above embodiment has been described in connection with the humidification device 2 being provided on the machine body 1 and the sterilization and purification module 7, the water pan 5, the heat exchanger 4, and the blower fan 3 being provided in the machine body 1, all the above features are not essential, and those skilled in the art will understand that the above arrangement may be suitably omitted so as to combine new embodiments on the premise of ensuring normal operation of the indoor unit of the cabinet air conditioner. For example, one or both of the humidifying device 2 and the sterilizing and purifying module 7 may be omitted based on the above embodiments, thereby combining new cabinet air-conditioning indoor units.

Example 3

A second embodiment of the indoor unit of a cabinet air conditioner according to the present application will be described with reference to fig. 7 to 9C.

Referring first to fig. 7 and 8, the structure of the indoor unit of the cabinet air conditioner will be explained. Fig. 7 is a block diagram of an indoor unit of a cabinet air conditioner according to a second embodiment of the present application; fig. 8 is a structural diagram of the fresh air module of the present application.

As shown in fig. 7 and 8, on the basis of the cabinet air conditioner indoor unit of any of the arrangement forms described in embodiment 2, the cabinet air conditioner indoor unit is further provided with a fresh air module 8, the fresh air module 8 is disposed below the machine body 1 and connected with the machine body 1, the fresh air module 8 is provided with an air suction inlet 811 and an air exhaust outlet 812, the air suction inlet 811 is communicated with the outside through a pipeline, and the air exhaust outlet 812 is communicated with the air inlet 111 of the machine body 1.

Through set up new trend module 8 on cabinet air conditioner indoor set for cabinet air conditioner indoor set can also introduce outdoor new trend when the operation, guarantees the oxygen content of indoor air, solves a great deal of problems such as indoor air turbidity, quality are poor. And after outdoor fresh air is introduced, the fresh air can be subjected to heat exchange treatment, so that the fluctuation of indoor temperature is reduced, and the user experience is improved.

Referring to fig. 7, in a preferred embodiment, the fresh air module 8 is disposed between the machine body 1 and the base 6, and the fresh air module 8 is respectively rotatably connected with the machine body 1 and the base 6, for example, the fresh air module 8 is respectively connected with the machine body 1 and the base 6 by a free rotation connection of a common bearing, or by a rotation connection member with damping such as a rotation damping bearing. After the connection, a gap is formed between the machine body 1 and the fresh air module 8, the air outlet 812 is arranged at the top of the fresh air module 8, and the air inlet 111 is arranged at the bottom of the machine body 1.

Through forming the clearance between organism 1 and new trend module 8 to set up air intake 111 in the bottom of organism 1, make the area of air intake 111 bigger, the intake is bigger, is favorable to improving heat transfer effect and heat exchange efficiency. Through setting up air exit 812 at the top of new trend module 8 for air exit 812 exhaust new trend can directly get into in the organism 1 and exchange heat, reduces indoor temperature's volatility, improves user experience. Through with fresh air module 8 respectively with organism 1 and base 6 swivelling joint for organism 1 and fresh air module 8 all can the free rotation when the air conditioner is installed, conveniently find the best installation angle, reduce the installation degree of difficulty, improve the suitability of air conditioner.

Referring to fig. 7 and 8, in a preferred embodiment, the fresh air module 8 includes a cylindrical housing 81, and a fresh air fan 82 and a variable speed driving mechanism 83 disposed in the cylindrical housing 81, the variable speed driving mechanism 83 being connected to the fresh air fan 82 so as to drive the fresh air fan 82 to rotate at a variable speed. Specifically, the variable speed driving mechanism 83 includes a driving motor 831, an electric fork 833 and a plurality of gear sets 832 with different gear ratios, driving wheels of the plurality of gear sets 832 are fixedly connected to an output shaft of the driving motor 831, driven wheels of the plurality of gear sets 832 are fixedly connected to a rotating shaft of the fresh air fan 82, and the electric fork 833 is mounted at one of the driving wheels, so that engagement of the different gear sets 832 is achieved by adjusting the extending length of the fork.

The speed of the fresh air fan 82 is adjusted by arranging the variable speed driving mechanism 83 in the fresh air module 8, the fresh air supply quantity of the fresh air can be adjusted, and the fresh air supply speed of the fresh air fan 3 is combined with the non-passing air speed of the fresh air fan, so that various air supply modes can be realized, and the practicability of the air conditioner is greatly improved.

Of course, the switching manner between the different gear sets 832 may be replaced by any other manner besides the electric fork 833, as long as the gear sets 832 can be smoothly switched. For example, the engagement of the different gear sets 832 may also be accomplished by two electric pushers pushing the drive gear in two directions, respectively. Further, the rotation speed of the fresh air fan 82 can be adjusted by other manners, such as by using a servo motor with adjustable rotation speed to drive the fresh air fan 82 to rotate through the gear set 832.

Three different fresh air modes are described below with reference to fig. 9A to 9C. Fig. 9A is a schematic diagram illustrating the operation of the indoor unit of the cabinet air conditioner in the first fresh air mode according to the second embodiment of the present application; fig. 9B is a schematic diagram illustrating operation of a second fresh air mode of an indoor unit of a cabinet air conditioner according to a second embodiment of the present application; fig. 9C is a schematic diagram illustrating the operation of the third fresh air mode of the indoor unit of the cabinet air conditioner according to the second embodiment of the present application.

As shown in fig. 9A, in the first fresh air mode, the air blower 3 is operated normally, the fresh air blower is operated at a rotation speed lower than that of the air blower 3, and at this time, the air entering the machine body 1 is divided into two parts, one part is from the fresh air module 8, and the other part is from the indoor air, so that the ventilation of the indoor air and the introduction of the fresh air can be simultaneously achieved.

As shown in fig. 9B, in the second fresh air mode, the air blower 3 is operated normally, and the fresh air blower is operated at a rotational speed substantially equal to that of the air blower 3, and the air flow entering the machine body 1 is all outdoor fresh air, so that the fresh air can be heat-exchanged while being introduced, and the fluctuation of indoor temperature is reduced.

As shown in fig. 9C, in the third fresh air mode, the air supply fan 3 is operated normally, the fresh air fan is operated at a higher rotational speed than the air supply fan 3, and at this time, a part of the outdoor fresh air enters the machine body 1 to participate in heat exchange, and another part of the outdoor fresh air is sent into the room from the gap between the machine body 1 and the fresh air module 8, so that the introduction of the fresh air and the stabilization of the indoor temperature can be considered to the greatest extent.

Those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims of the present application, any of the claimed embodiments may be used in any combination.

Thus far, the technical solution of the present application has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present application is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present application, and such modifications and substitutions will fall within the scope of the present application.

Claims

1. The cabinet air conditioner indoor unit is characterized by comprising a machine body, wherein an air inlet and a first air outlet are formed in the machine body, a humidifying device is arranged at the first air outlet, an air supply fan, a heat exchanger and a water receiving disc are arranged in the machine body, and the water receiving disc is arranged below the heat exchanger;

the heat exchanger comprises a coil, wherein the coil is enclosed into a cylindrical structure, and one end of the cylindrical structure is closed;

the machine body comprises a columnar shell and an annular air outlet structure arranged at the top of the columnar shell, the air supply fan, the heat exchanger and the water pan are arranged in the columnar shell, and the annular air outlet structure is provided with the first air outlet;

the annular air outlet structure comprises an inner annular surface and an outer annular surface, the outer annular surface is sleeved on the outer side of the inner annular surface and surrounds the inner annular surface to form an air outlet cavity, the front end of the outer annular surface and the front end of the inner annular surface are provided with the first air outlet, the rear end of the outer annular surface is in closed connection with the rear end of the inner annular surface, the bottom end of the outer annular surface is also provided with a vent hole, and the air outlet cavity is communicated with the columnar shell through the vent hole;

an air guide structure is further arranged on the inner annular surface and/or the outer annular surface, and the air guide structure is arranged to enable the air outlet width of the first air outlet to be gradually reduced;

the humidifying device comprises a water tank and an atomizer arranged in the water tank, and the water tank is fixedly connected to the bottom of the inner ring surface.

2. The indoor unit of claim 1, wherein the tubular structure includes an upstream end and a downstream end along a direction of airflow, the upstream end being closed, and the downstream end being formed with an opening.

3. The indoor unit of claim 1, wherein the water pan comprises a circular pan and an annular pan, the circular pan and the annular pan are vertically arranged and are communicated with each other through a drainage tube.

4. The indoor unit of claim 1, wherein the outer ring surface is further provided with a second air outlet, the first air outlet is provided with a first blocking piece mechanism, the second air outlet is provided with a second blocking piece mechanism, the first blocking piece mechanism is configured to close or open the first air outlet when in action, and the second blocking piece mechanism is configured to close or open the second air outlet when in action.

5. The indoor unit of claim 1, wherein the blower is a digital turbine motor.

6. The indoor unit of claim 1, further comprising a base, wherein the body is rotatably coupled to the base.

7. The indoor unit of claim 6, wherein a gap is formed between the body and the base, and the air inlet is disposed at a bottom of the body.