CN110486834B - Cabinet air conditioner indoor unit - Google Patents

Abstract

The invention relates to the technical field of air conditioners, and aims to solve the problem of low working efficiency of the existing indoor unit of a cabinet air conditioner, so that the indoor unit of the cabinet air conditioner comprises a machine body, wherein an air inlet and a first air outlet are formed in the machine body; the evaporator comprises a coil pipe, a first fin layer and a second fin layer, the first fin layer and the second fin layer are arranged at intervals up and down, the coil pipe is connected with the first fin layer and the second fin layer, the first fin layer and the second fin layer respectively comprise a plurality of fin groups which are arranged at intervals and are in a disc shape, and the fin groups of the first fin layer and the fin groups of the second fin layer are arranged in a staggered mode. According to the indoor unit provided by the invention, the heat exchange efficiency is improved by increasing the heat exchange area of the evaporator, so that the working efficiency of the indoor unit is improved, and a safer and more comfortable indoor environment can be created for users.

Description

Cabinet air conditioner indoor unit

Technical Field

The invention relates to the technical field of air conditioners, in particular to a cabinet type air conditioner indoor unit.

Background

As air conditioners are widely served to thousands of households, the requirements of users on the performance of the air conditioners are higher and higher. Taking a cabinet air conditioner as an example, the performance of the air conditioner is greatly determined by the heat exchange efficiency of the evaporator, the heat exchange efficiency is closely related to the heat exchange area of the evaporator, and the larger the heat exchange area is, the higher the heat exchange efficiency is under normal conditions.

The structure and the arrangement mode of the evaporator directly determine the size of the heat exchange area, and further influence the height of the heat exchange efficiency. In the existing cabinet air conditioner, the evaporator is usually obliquely arranged in the air conditioner shell or attached to the air inlet, and the evaporator is in a flat plate shape, so that the contact between airflow and the evaporator is not uniform, the heat exchange effect of the evaporator is not ideal, and the working efficiency of the indoor unit of the cabinet air conditioner is low.

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

Disclosure of Invention

In order to solve the problems in the prior art, namely to solve the problems of unsatisfactory heat exchange effect of an evaporator and low working efficiency of the existing cabinet air-conditioning indoor unit, the invention provides the cabinet air-conditioning indoor unit, which comprises a unit body, wherein an air inlet and a first air outlet are formed in the unit body, a sterilization and purification module, a water receiving disc, the evaporator and an air supply fan are sequentially arranged in the unit body from bottom to top, and the sterilization and purification module is arranged at the air inlet;

the evaporator comprises a coil, a first fin layer and a second fin layer, wherein the first fin layer and the second fin layer are arranged at intervals up and down, the coil is connected with the first fin layer and the second fin layer, the first fin layer and the second fin layer respectively comprise a plurality of fin groups which are arranged at intervals and are disc-shaped, and the fin groups of the first fin layer and the fin groups of the second fin layer are arranged in a staggered mode.

In the preferable technical scheme of the indoor unit of the cabinet air conditioner, the coil comprises a plurality of sub-coils corresponding to the number of the fin groups of the first fin layer, the evaporator further comprises a liquid separating ball and a liquid returning ball, one end of each sub-coil is connected to one fin group of the first fin layer and then communicated with the liquid separating ball, the other end of each sub-coil is connected to one fin group of the second fin layer and then communicated with the liquid returning ball, and the sub-coils are arranged on the fin groups in a serpentine shape.

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

The air supply fan comprises a digital turbine motor.

In the above-mentioned cabinet air-conditioning indoor unit, in a preferred technical solution, the diameter of the inner ring of the annular disc is smaller than the diameter of the circular disc.

In the preferable technical scheme of the indoor unit of the cabinet air conditioner, the unit body comprises a cylindrical shell and an annular air outlet structure arranged at the top of the cylindrical shell, the air supply fan, the evaporator and the water pan are arranged in the cylindrical shell, and the first air outlet is formed in the annular air outlet structure.

In the preferable technical scheme of the indoor unit of the cabinet air conditioner, the annular air outlet structure comprises an inner annular surface and an outer annular surface which are sleeved with each other, the rear end of the inner annular surface and the rear end of the outer annular surface are connected in a sealing manner to form an air outlet cavity, and the first air outlet is formed at the front end of the air outlet cavity; the bottom of the outer annular surface is provided with a vent hole, and the air outlet cavity is communicated with the columnar shell through the vent hole.

In the above-mentioned preferred technical solution of the cabinet air-conditioning indoor unit, a second air outlet is further provided on the outer annular surface, the first air outlet is provided with a first flap mechanism, the second air outlet is provided with a second flap mechanism, the first flap mechanism is configured to close or open the first air outlet when acting, and the second flap mechanism is configured to close or open the second air outlet when acting.

In the above preferred technical solution of the indoor unit of the cabinet air conditioner, the sterilization and purification module is cylindrical, and an HEPA filter layer, a cold catalyst filter layer, an anion germicidal lamp and an ion converter are arranged in the sterilization and purification module, the cold catalyst filter layer is located at the top of the sterilization and purification module, the HEPA filter layer is located at the bottom of the sterilization and purification module, the ion converter is located at the center of the sterilization and purification module, and the anion germicidal lamp is annular and surrounds the side surface of the ion converter.

In the preferable technical scheme of the cabinet type air-conditioning indoor unit, the air-conditioning indoor unit further comprises a base, and the machine body is rotatably connected with the base.

In the above-mentioned preferred technical solution of the cabinet air-conditioning indoor unit, a gap is formed between the machine body and the base in the vertical direction, and the air inlet is disposed at the bottom of the machine body, so that air in the environment can enter the machine body from the air inlet through the gap.

According to the cabinet type air-conditioning indoor unit provided by the invention, the radiating fins of the evaporator are divided into the fin groups and then are vertically arranged at intervals to form the first fin layer and the second fin layer, and the fin groups of the first fin layer and the fin groups of the second fin layer are arranged in a staggered manner and connected with the coil pipes, so that the contact area of the evaporator and air can be greatly increased, the heat exchange area is increased, the heat exchange efficiency is improved, and the working efficiency of the cabinet type air-conditioning indoor unit is further improved; in addition, the fin groups of the first fin layer and the fin groups of the second fin layer are arranged in a staggered mode, so that air circulation in the heat exchange process is smoother, the heat exchange efficiency of the evaporator is further improved, and the working efficiency of the cabinet air conditioner indoor unit is further improved; moreover, the evaporator is designed into a three-dimensional column shape, compared with the traditional evaporator, the evaporator has more branch pipelines which are arranged in parallel, so that the stroke of the refrigerant is effectively shortened, the phenomena of supercooling degree and superheat degree of the refrigerant are effectively reduced, the heat exchange effect of the evaporator is further enhanced, and the working efficiency of the indoor unit of the cabinet air conditioner is further improved; finally, through setting up the purification module that disinfects in air intake department, will get into the inside room air of organism and all handle through the purification module that disinfects to get rid of dust, bacterium etc. in the air, make the clean pollution-free of air of final output, and then be favorable to building a comfortable sanitary indoor environment for the user.

Furthermore, the coil is arranged into a plurality of sub-coils connected in parallel, the single sub-coil is arranged on two adjacent fin groups in the first fin layer and the second fin layer, and the plurality of sub-coils are arranged in parallel, so that the heat exchange capacity of the circular rings with the same diameter in each fin layer is consistent, the heat exchange performance of the evaporator is more uniform, the heat exchange efficiency of the evaporator is improved, the service life of the evaporator is prolonged, and the working efficiency and the service life of the cabinet type indoor unit are further improved; by arranging the liquid separation ball, the uniform distribution of the refrigerant can be conveniently realized; by arranging the liquid return ball, the refrigerant after heat exchange in the plurality of sub-coil pipes can be uniformly mixed and then enters the circulating pipeline to realize the circulation of the refrigerant, so that the stability of the refrigerating or heating performance of the air conditioner is kept; the sub-coil pipes are arranged on the fin groups in a snake shape, so that the contact area between the coil pipes and the fin groups can be effectively increased, and the heat exchange efficiency is further improved.

Furthermore, the water pan adopts the split type design that the circular plate and the annular plate are arranged up and down, so that the problem that the water pan cannot be arranged below the evaporator when the evaporator is horizontally arranged is ingeniously solved, and the collection of condensed water is realized on the premise of not influencing air inlet. Further, by setting the inner diameter of the annular disk to be smaller than the diameter of the circular disk, it is possible to prevent condensed water from leaking from a gap between the circular disk and the annular disk during the vertical falling.

Further, set up annular air-out structure through the top at the column shell, the structural first air outlet and the second air outlet that sets up of annular air-out, and first air outlet and second air outlet respectively dispose separation blade mechanism, make the air conditioner possess brand-new air outlet structure and three kinds of different air-out modes (jetting mode, gentle breeze mode and diffusion mode), the air output is bigger, the air supply region is wide, the range is far away, the user can select the air-out mode based on needs are nimble, traditional cabinet-type air conditioner product iterative seal thought has been overturned, promote the development transformation of air conditioner.

Further, traditional disinfecting often sets up several shot-light, and this kind of disinfect the regional inhomogeneous, has the blind area, and this application sets to the pie through purifying module that will disinfect, and pie top and bottom set up cold catalyst filter layer and HEPA filter layer respectively, and the center sets up ion converter, encloses on the ion converter and establishes the anion bactericidal lamp for not only novel structure of purifying module that disinfects, the purification that disinfects does not have the dead angle moreover. The negative ions emitted by the ion converter not only have a certain sterilization effect, but also have the effects of resisting oxidation and aging, enhancing the immunity of the human body, enhancing the self-healing capability, promoting the metabolism of the human body, improving the sleep, effectively enhancing the oxygen carrying capability of blood and the like.

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

Furthermore, 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 volume is larger, and the heat exchange effect and the heat exchange efficiency are favorably improved.

Drawings

The cabinet air-conditioning indoor unit and the evaporator thereof according to the invention are described below with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of an evaporator provided in embodiment 1 of the present invention;

FIG. 2 is a schematic view of the connection between two adjacent fin groups and sub-coils in the evaporator provided in embodiment 1 of the present invention;

fig. 3 is a schematic diagram of the operation of the cabinet air-conditioner indoor unit according to embodiment 2 of the present invention, in which an air flow path in operation is shown;

fig. 4 is a schematic view of the operation of the cabinet air-conditioning indoor unit according to embodiment 2 of the present invention, wherein the path of air circulation inside the cylindrical casing is shown;

fig. 5 is a schematic cross-sectional view of an annular air outlet structure according to embodiment 2 of the present invention, wherein a situation that a first air outlet is opened is shown;

fig. 6 is a schematic cross-sectional view of an annular air outlet structure according to embodiment 2 of the present invention, wherein a situation that a second air outlet is opened is shown;

fig. 7 is a schematic cross-sectional view of a water pan according to embodiment 2 of the present invention, in which a first installation manner of the water pan is shown;

fig. 8 is a schematic cross-sectional view of a water pan according to embodiment 2 of the present invention, in which a second installation manner of the water pan is shown;

fig. 9 is an operation schematic diagram of a cabinet air conditioner indoor unit according to embodiment 3 of the present invention, in which an air circulation path in operation is shown;

fig. 10 is a schematic view of the operation of the cabinet air-conditioning indoor unit according to embodiment 3 of the present invention, in which the path of air circulation inside the cylindrical casing is shown;

fig. 11 is a schematic structural diagram of a sterilization and purification module provided in embodiment 3 of the present invention;

FIG. 12 is a schematic cross-sectional view of FIG. 11;

FIG. 13 is a top view of FIG. 11;

fig. 14 is an operation schematic view of a cabinet air conditioner indoor unit according to embodiment 4 of the present invention, showing an air flow path in operation;

fig. 15 is a schematic working diagram of a cabinet air-conditioner indoor unit according to embodiment 4 of the present invention, in which a first working mode of a fresh air module is shown;

fig. 16 is a schematic view of an operation of a cabinet air conditioner indoor unit according to embodiment 4 of the present invention, where a second operation mode of a fresh air module is shown;

fig. 17 is a schematic view of an operation of a cabinet air conditioner indoor unit according to embodiment 4 of the present invention, where a third operation mode of a fresh air module is shown;

fig. 18 is an operation schematic diagram of a cabinet air conditioner indoor unit according to embodiment 5 of the present invention, in which an air circulation path in operation is shown;

fig. 19 is a schematic view of an operation of a cabinet air-conditioning indoor unit according to embodiment 5 of the present invention, wherein a first operation mode of a fresh air module is shown;

fig. 20 is a schematic view of an operation of a cabinet air conditioner indoor unit according to embodiment 5 of the present invention, wherein a second operation mode of the fresh air module is shown;

fig. 21 is a schematic view of an operation of a cabinet air conditioner indoor unit according to embodiment 5 of the present invention, where a third operation mode of a fresh air module is shown;

list of reference numerals:

1. a base; 2. a fresh air module; 20. a cylindrical housing; 21. a pipeline; 22. a fresh air fan; 23. a gear set; 24. a drive motor; 3. a sterilization purification module; 30. a housing; 31. a HEPA filter layer; 32. a cold catalyst filter layer; 33. an ion converter; 34. a negative ion germicidal lamp; 4. a body; 40. a cylindrical housing; 41. an annular air outlet structure; 410. an inner ring surface; 411. an outer annular surface; 412. an air outlet cavity; 413. an air outlet; 4130. a first air outlet; 4131. a second air outlet; 414. a first catch mechanism; 415. a second catch mechanism; 5. a water pan; 50. an annular disc; 51. a circular disc; 52. a drainage tube; 6. an evaporator; 60. a first fin layer; 600. a first fin group; 6000. a fin; 61. a second fin layer; 610. a second fin group; 62. liquid separating balls; 63. returning the liquid ball; 64. a sub-coil pipe; 7. an air supply fan; 8. a humidifying device; 80. an atomizer.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, the cooling principle of an air conditioner, which is well known to those skilled in the art, is not described in detail in order to highlight the gist of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are 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 device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1

Referring first to fig. 1 and 2, an evaporator provided by the present invention will be described. Fig. 1 is a schematic structural diagram of an evaporator provided in embodiment 1 of the present invention; fig. 2 is a schematic view of the connection between two adjacent fin groups and the sub-coil in the evaporator provided in embodiment 1 of the present invention.

As shown in fig. 1 and 2, the evaporator 6 for a cabinet air conditioner indoor unit provided in the present embodiment includes a coil, a first fin layer 60, and a second fin layer 61. As shown in fig. 1, the first fin layer 60 and the second fin layer 61 are arranged at an interval from top to bottom and are connected together by a connecting member such as a bracket, and the coil is connected with both the first fin layer 60 and the second fin layer 61, and the specific connection mode refers to fig. 2, and fig. 1 shows the structure of the fin layers, and the coil is not shown. The first fin layer 60 and the second fin layer 61 each include a plurality of fin groups arranged at intervals, and each of the individual fin groups is composed of a plurality of fins 6000 arranged at intervals in the vertical direction. Referring to FIG. 1, the first fin layer 60 illustrated in FIG. 1 is made up of 6 fin groups, each of which is defined as a first fin group 600; the number of fin groups of the second fin layer 61 is the same as the number of fin groups of the first fin layer 60, and is also 6, each of which is defined as a second fin group 610. The first fin layers 60 composed of 6 first fin groups 600 and the second fin layers 61 composed of 6 second fin groups 610 are each disc-shaped, and the first fin groups 600 of the first fin layers 60 and the second fin groups 610 of the second fin layers 61 are arranged in a staggered manner in the longitudinal direction. Referring to fig. 1, taking the foremost first fin group 600 as an example, directly below it is a gap formed between two adjacent second fin groups 610 in the second fin layer 61; similarly, taking the second fin group 610 at the forefront and right as an example, the space formed between two adjacent first fin groups 600 in the first fin layer 60 is directly above the second fin group.

Preferably, the fins in a single fin group are arranged in a fan shape. Referring to fig. 1 or fig. 2, taking one of the first fin groups 600 as an example, the first fin group 600 is formed by arranging a plurality of vertically extending fins 6000 at intervals, the fins 6000 at one end close to the center of the first fin layer 60 are arranged relatively closely, and the fins 6000 at one end far from the center are arranged relatively loosely, so that the single first fin group 600 is in a fan shape, which is beneficial to splicing a plurality of first fin groups 600 to form the first fin layer 60 and is beneficial to uniform heat dissipation of the evaporator 6.

The coil in this embodiment includes a plurality of sub-coils 64, and in fig. 2, one sub-coil 64 is shown with the connection of a first fin group 600 and a second fin group 610 connected thereto. The number of the sub-coils 64 is the same as the number of the first fin groups 600 in the first fin layer 60, and the number of the second fin groups 610 in the second fin layer 61. The sub-coils 64 are connected to two fin groups adjacent to each other in the first fin layer 60 and the second fin layer 61, respectively. Referring to fig. 2, one end of the sub-coil 64 starts from the root of the first fin group 600, and then is wound around the first fin group 600 and the second fin group 610 in sequence and returns to the root of the second fin group 610.

Further, in order to uniformly distribute the refrigerant to each sub-coil 64 and uniformly mix the refrigerant with possibly different temperatures in each sub-coil 64 after heat exchange, and then enter the refrigerant circulation line, the evaporator 6 in this embodiment further includes a liquid separation ball 62 and a liquid return ball 63. Specifically, the first fin layer 60 is disposed above the second fin layer 61, the liquid separating ball 62 is disposed in the center of the first fin layer 60, and the liquid returning ball 63 is disposed in the center of the second fin layer 61. One end of the sub-coil 64 is communicated with the liquid separating ball 62, and the other end is communicated with the liquid returning ball 63. Referring to fig. 2, the sub-coil 64 is connected to the liquid separating ball 62, starts from the root of the first fin group 600, extends downward after the surface of the first fin group 600 is arranged in a serpentine shape, starts in a serpentine shape on the surface of the second fin group 610, and finally returns to the root of the second fin group 610 to be connected to the liquid returning ball 63, and the flow direction of the refrigerant is as indicated by the arrow in the figure.

It should be noted that the above preferred embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the setting manner described above so that the present invention can be applied to more specific application scenarios.

For example, in an alternative embodiment, the sub coils 64 may be further connected to the lower surfaces of the first fin group 600 and the second fin group 610, and in another alternative embodiment, the sub coils 64 may be further inserted into the fins as long as it satisfies the condition that the fins are in contact with the sub coils 64.

In addition, it should be noted that the liquid separating ball 62 in the above embodiment may also have other structures, and mainly functions to separate refrigerant, such as a liquid separating head of an existing air conditioner; the liquid return ball 63 can also be an air conditioner liquid separation head for reverse application, and the liquid return ball 63 is mainly used for collecting the refrigerant in the sub-coil 64.

A cabinet type air conditioning indoor unit equipped with an evaporator according to embodiment 1 will be described in detail with reference to fig. 3 to 21.

Example 2

Referring to fig. 3 to 8, fig. 3 is a schematic diagram illustrating an operation of a cabinet air conditioner indoor unit according to embodiment 2 of the present invention, wherein an air flow path in operation is shown; fig. 4 is a schematic view of the operation of the cabinet air-conditioning indoor unit according to embodiment 2 of the present invention, wherein the path of air circulation inside the cylindrical casing is shown; fig. 5 is a schematic cross-sectional view of the annular air outlet structure provided in embodiment 2 of the present invention, wherein a situation that the first air outlet is opened is shown; fig. 6 is a schematic cross-sectional view of an annular air outlet structure according to embodiment 2 of the present invention, wherein a situation that a second air outlet is opened is shown; fig. 7 is a schematic cross-sectional view of a water pan according to embodiment 2 of the present invention, in which a first installation manner of the water pan is shown; fig. 8 is a schematic cross-sectional view of a water pan according to embodiment 2 of the present invention, in which a second installation manner of the water pan is shown.

Referring to fig. 3 and 4, the cabinet air conditioner indoor unit in the embodiment includes a body 4 and a base 1, the body 4 is provided with an air inlet and an air outlet 413, and the body 4 is internally provided with a water pan 5, an evaporator 6 and an air supply fan 7 in sequence from bottom to top. Referring to fig. 3, the body 4 is rotatably connected to the base 1, the base 1 is used for supporting the body 4, a supporting shaft is vertically disposed on the base 1, and the body 4 is connected to the supporting shaft through a bearing, so that the body 4 can rotate 360 ° or at least a certain angle on the base 1. Further, the base 1 and the machine body 4 can be rotatably inserted, so that the machine body 4 is convenient to disassemble. Referring to fig. 4, the machine body 4 includes a cylindrical housing 40 and an annular air outlet structure 41 disposed at the top of the cylindrical housing 40. The air supply fan 7, the evaporator 6 and the water pan 5 are arranged in the columnar shell 40. Referring to fig. 4-6, the annular air outlet structure 41 includes an inner annular surface 410 and an outer annular surface 411 that are sleeved with each other, a rear end of the inner annular surface 410 and a rear end of the outer annular surface 411 are connected in a sealing manner to form an air outlet cavity 412, and the air outlet 413 of the housing 4 includes a first air outlet 4130 and a second air outlet 4131, where the first air outlet 4130 is formed at a front end of the air outlet cavity 412, and the second air outlet 4131 is formed on a side wall of the outer annular surface 411. The bottom end of the outer annular surface 411 is provided with a vent hole (not shown), and the air outlet cavity 412 is communicated with the cylindrical shell 40 through the vent hole, so that air in the cylindrical shell 40 can enter the air outlet cavity 412 through the vent hole and be blown out from the air outlet 413. A gap is formed between the machine body 4 and the base 1 in the vertical direction, an air inlet is arranged at the bottom of the machine body 4, so that air in the environment can enter the machine body 4 from the air inlet through the gap, and the condition that the air enters the machine body 4 from the indoor is shown in fig. 4.

In the cabinet air-conditioning indoor unit in this embodiment, the humidifying device 8 is further disposed at the first air outlet 4130, and the humidifying device 8 may implement a humidifying function alone, or may implement a humidifying function while the air-conditioning indoor unit is operating. Referring to fig. 4, the humidifying device 8 includes a water tank fixedly connected to the bottom of an inner annular surface 410, and an atomizer 80 disposed in the water tank. Wherein, the atomizer 80 can be an ultrasonic atomizer, an evaporation type atomizer, etc., when the humidifying device 8 is started while the air conditioner is cooling or heating, under the action of the air supply fan 7, indoor air enters the cylindrical shell 40 through the air inlet at the bottom of the machine body 4, air current flows through the water pan 5, the evaporator 6 and the air supply fan 7, enters the air outlet chamber 412 of the annular air outlet structure 41 through the vent hole, and referring to fig. 3 and 5, the air flow inside the cylindrical housing 40 is discharged through the first air outlet 4130 located at the front end of the air outlet chamber 412, because the front end and the rear end of the inner ring surface 410 are communicated, the air pressure at the first air outlet 4130 is reduced in the air outlet process, so that the air at the rear end of the annular air outlet structure 41 rushes towards the front end to form air flow, in the process, the fog generated by the humidifying device 8 is pushed to flow along with the air flow and spread indoors, and meanwhile, the humidifying and air supply functions are realized.

Further, in order to realize multiple air blowing modes, the outer annular surface 411 of the annular air outlet structure 41 in the present embodiment is further provided with a second air outlet 4131, the first air outlet 4130 is provided with a first blocking mechanism 414, the second air outlet 4131 is provided with a second blocking mechanism 415, and the first blocking mechanism 414 and the second blocking mechanism 415 may be linked or driven independently. The first flap mechanism 414 and the second flap mechanism 415 may have the same structure, and taking the first flap mechanism 414 as an example, the first flap mechanism 414 includes a flap and a micro motor, the flap is pivotally connected to a side wall surface of the first air outlet 4130, an output shaft of the micro motor is fixedly connected to a rotating shaft of the flap, and the micro motor drives the flap to swing when rotating, so as to close or open the first air outlet 4130. Similarly, the second blocking piece mechanism 415 drives the blocking piece to swing through the driving of the micro motor, so as to close or open the second air outlet 4131. Due to the arrangement of the first air outlet 4130 and the second air outlet 4131, and the arrangement of the first blocking mechanism 414 and the second blocking mechanism 415, the indoor unit of an air conditioner in this embodiment can implement three blowing modes. Referring to fig. 5, fig. 5 shows a blowing mode of the indoor unit of the cabinet air conditioner, at this time, the first blocking mechanism 414 operates or maintains an original state to open the first air outlet 4130, the second blocking mechanism 415 operates or maintains an original state to close the second air outlet 4131, and the air flow in the air outlet cavity 412 is completely blown out through the first air outlet 4130, and if the user stands in front of the annular air outlet structure 41, the user feels the effect of direct blowing of the air flow. Referring to fig. 6, fig. 6 shows a soft wind mode of the indoor unit of the cabinet air conditioner, at this time, the first blocking mechanism 414 operates or maintains its original state to close the first air outlet 4130, the second blocking mechanism 415 operates or maintains its original state to open the second air outlet 4131, and the air flow in the air outlet cavity 412 is completely ejected through the second air outlet 4131, and if the user stands in front of the annular air outlet structure 41, the user cannot feel the direct blowing of the air flow obviously, because the air flow blown by the indoor unit is mainly in the vertical direction. When the first blocking mechanism 414 and the second blocking mechanism 415 are opened simultaneously, the cabinet air-conditioning indoor unit can also realize a diffusion mode, and at this time, the first air outlet 4130 and the second air outlet 4131 have air flows blown out simultaneously, so that the air speed is slow, and the direct blowing effect is not obvious. It is understood that the opening degree of the first shutter mechanism 414 and the second shutter mechanism 415 can also be set in an adjustable manner to adjust the air output.

The water tray 5 in this embodiment will be described with reference to fig. 7 and 8. The water pan 5 in this embodiment includes a circular plate 51 and an annular plate 50, and the circular plate 51 and the annular plate 50 are vertically arranged and communicated with each other through a drainage tube 52. Referring to fig. 7, the circular disk 51 of fig. 7 is disposed below the annular disk 50, and the annular disk 50 drains the condensed water in the annular disk 50 into the circular disk 51 through the drain tube 52. Referring to fig. 8, the circular plate 51 of fig. 8 is disposed above the annular plate 50, the circular plate 51 guides the condensed water in the circular plate 51 to the annular plate 50 through the drainage tube 52, and the air supply fan 7 includes a digital turbo motor which can maintain a silent operation while ensuring a large air supply capacity. It will be appreciated that whether the annular disc 50 is disposed below or the circular disc 51 is disposed below, the condensate can be diverted to the outside of the room or elsewhere through additional conduits. Preferably, in order to exactly catch the condensate formed on the evaporator 6, the inner ring diameter of the annular disc 50 is set smaller than the diameter of the circular disc 51, so that the projection of the circular disc 51 and the annular disc 50 on the horizontal plane is a complete circle when viewed from the top, and partial condensate can be effectively prevented from passing through the gap between the circular disc 51 and the annular disc 50 and dropping to the bottom of the cylindrical shell 40. The water pan 5 is arranged in the embodiment, so that the problem of unsmooth ventilation of a lower air inlet structure of the indoor unit of the air conditioner can be effectively solved, and air flow entering from the lower air inlet flows through a gap formed between the circular plate 51 and the annular plate 50 by virtue of height difference, and then smoothly flows through the evaporator 6 and the air supply fan 7 and is discharged.

It should be noted that the evaporator 6 configured in this embodiment is the evaporator 6 configured in embodiment 1, and therefore, the details are not described again in this embodiment.

Example 3

Referring to fig. 9-13, fig. 9 is a schematic view showing the operation of a cabinet air conditioner indoor unit according to embodiment 3 of the present invention, wherein an air flow path in operation is shown; fig. 10 is a schematic view of the operation of the cabinet air-conditioning indoor unit according to embodiment 3 of the present invention, in which the path of air circulation inside the cylindrical casing is shown; fig. 11 is a schematic structural diagram of a sterilization and purification module provided in embodiment 3 of the present invention; FIG. 12 is a cross-sectional view of FIG. 11; fig. 13 is a top view of fig. 11.

The main structure of the cabinet air-conditioning indoor unit provided in this embodiment is basically the same as that of the cabinet air-conditioning indoor unit in embodiment 2, and is different from that of the cabinet air-conditioning indoor unit in embodiment 2 in that the cabinet air-conditioning indoor unit in this embodiment is further provided with a sterilization and purification module 3. Referring to fig. 9, in the present embodiment, a sterilization and purification module 3, a water pan 5, an evaporator 6, and an air supply fan 7 are sequentially disposed from bottom to top in a cylindrical housing 40, and the sterilization and purification module 3 is disposed at an air inlet of the cylindrical housing 40. Referring to fig. 10, after entering the air inlet, the indoor air firstly passes through the sterilization and purification module 3 for sterilization and purification, and then passes through the water pan 5, the evaporator 6 and the air supply fan 7 in sequence. Referring to fig. 11-13, and 11, the sterilization and purification module 3 in this embodiment is cylindrical, referring to fig. 12 and 13, a HEPA (High Efficiency Air filter) filter layer, a cold catalyst filter layer 32, an anion germicidal lamp 34 and an ion converter 33 are disposed inside the housing 30, the cold catalyst filter layer 32 is located at the top of the sterilization and purification module 3, the HEPA filter layer 31 is located at the bottom of the sterilization and purification module 3, the ion converter 33 is located at the center of the sterilization and purification module 3, and the anion germicidal lamp 34 is annular and surrounds the side surface of the ion converter 33. The HEPA filter layer 31 is mainly used for collecting particle dust and various suspended matters below 0.5um, has high filtering efficiency and low flow resistance, and can be continuously used for a long time. The filtering principle of the cold catalyst is mainly that toxic and odorous harmful gases are decomposed into harmless and tasteless substances through catalytic reaction under the condition of normal temperature, pure physical adsorption is converted into chemical adsorption, the decomposition is carried out while the adsorption is carried out, the harmful gases such as formaldehyde, benzene, dimethylbenzene and methylbenzene are removed, water and carbon dioxide are generated, and the cold catalyst does not directly participate in the reaction in the catalytic reaction process, so that the cold catalyst can play a role for a long time. After the negative ion sterilizing lamp 34 is annularly arranged, the chambers are divided into different chambers, as shown in fig. 13, the center is provided with the ion converter 33, and the annular arrangement of the negative ion sterilizing lamp 34 enables the air flow to be irradiated by dead angles when passing, so that the sterilization is more thorough. The ion exchanger 33 is used in cooperation with a negative ion germicidal lamp 34.

The connection mode and the working process of other components in this embodiment, such as the water pan 5, the evaporator 6, the air supply fan 7, the annular air outlet structure 41, the base 1, and the like, are the same as those in embodiment 2, and reference is directly made to embodiment 2.

Example 4

The cabinet air-conditioning indoor unit provided in this embodiment has basically the same structure as the cabinet air-conditioning indoor unit provided in embodiment 2, and the difference is that the cabinet air-conditioning indoor unit in this embodiment is provided with a fresh air module 2 in addition to the components in embodiment 2.

Referring to fig. 14 to 17, fig. 14 is a schematic diagram illustrating an operation of a cabinet air conditioner indoor unit according to embodiment 4 of the present invention, wherein an air flow path in operation is shown; fig. 15 is a schematic working diagram of a cabinet air-conditioner indoor unit according to embodiment 4 of the present invention, in which a first working mode of a fresh air module is shown; fig. 16 is a schematic operating diagram of a cabinet air conditioner indoor unit according to embodiment 4 of the present invention, in which a second operating mode of a fresh air module is shown; fig. 17 is a schematic working diagram of a cabinet air-conditioning indoor unit according to embodiment 4 of the present invention, where a third working mode of a fresh air module is shown.

Referring to fig. 14, the fresh air module 2 is disposed below the machine body 4 and is rotatably connected or fixedly connected to the machine body 4, a gap is formed between the machine body 4 and the fresh air module 2, the fresh air module 2 is provided with a fresh air inlet and a fresh air outlet, the fresh air inlet is communicated with the outside through a pipeline 21, the fresh air outlet is disposed at the top of the fresh air module 2, and the fresh air outlet is communicated with an air inlet disposed at the bottom of the machine body 4, so that fresh air blown out from the fresh air outlet can directly enter the columnar shell 40 through the air inlet. Fresh air module 2 and base 1 swivelling joint if connect through the bearing, can realize 360 rotations of fresh air module 2 to increase the selectivity that the user arranged fresh air pipeline, the user can set up according to the situation selectivity of arranging of indoor furniture when seting up fresh air wall hole, thereby can avoid sheltering from and punch.

Referring to fig. 15, 16 or 17, the fresh air module 2 includes a cylindrical housing 20, and a fresh air fan 22 and a variable speed driving mechanism which are arranged inside the cylindrical housing 20, the variable speed driving mechanism includes a driving motor 24, an electric fork and a plurality of gear sets 23 with different gear ratios, driving wheels of the gear sets 23 are fixedly connected to an output shaft of the driving motor 24, driven wheels of the gear sets 23 are fixedly connected to a rotating shaft of the fresh air fan 22 so as to drive the fresh air fan 22 to rotate, and the fresh air fan 22 faces a fresh air outlet of the fresh air module 2. The electric shifting fork is arranged at one driving wheel, so that the meshing of different gear sets is realized by adjusting the extending length of the shifting fork.

In this embodiment, the fresh air module 2 has three operation modes. Referring to fig. 15, when the fresh air module 2 is in low-speed air intake, the air entering the machine body 4 is divided into two parts, one part is from the fresh air exhausted by the fresh air module 2 from the outdoor, and the other part is from the air in the indoor environment. Referring to fig. 16, when air enters the fresh air module 2 at a medium speed, the air output of the fresh air module 2 is substantially the same as the air input of the machine body 4, and the air input of the machine body 4 mainly comes from the fresh air of the fresh air module 2. Referring to fig. 17, when the fresh air module 2 is used for supplying air at a high speed, a part of fresh air discharged from the fresh air module 2 enters the machine body 4, and the other part of fresh air escapes from a gap between the fresh air module 2 and the machine body 4 and enters an indoor environment, so that air circulation in the indoor environment is accelerated.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.

Example 5

The structure of the cabinet air-conditioning indoor unit provided in this embodiment is a combination of embodiment 3 and embodiment 4, and compared with embodiment 4, the cabinet air-conditioning indoor unit in this embodiment is provided with a sterilization and purification module 3 in addition to a base 1, a fresh air module 2, a machine body 4, a water pan 5, an evaporator 6 and an air supply fan 7 in the machine body 4, and the structure, connection mode and connection position of the sterilization and purification module 3 are the same as those in embodiment 3.

The cabinet air-conditioning indoor unit provided by the embodiment is specifically described with reference to fig. 18 to 21, where fig. 18 is a schematic operation diagram of the cabinet air-conditioning indoor unit provided by embodiment 5 of the present invention, in which an air flow path in operation is shown; fig. 19 is a schematic view of an operation of a cabinet air conditioner indoor unit according to embodiment 5 of the present invention, where a first operation mode of a fresh air module is shown; fig. 20 is a schematic view of an operation of a cabinet air conditioner indoor unit according to embodiment 5 of the present invention, where a second operation mode of a fresh air module is shown; fig. 21 is a schematic view of an operation of a cabinet air conditioner indoor unit according to embodiment 5 of the present invention, where a third operation mode of a fresh air module is shown.

Referring to fig. 18, the setting manner of the fresh air module 2 in this embodiment is the same as that in embodiment 4, and there are 3 kinds of operation modes of the fresh air module 2, which are the same as those in embodiment 4, specifically referring to fig. 19 to 21. Different from embodiment 4, in this embodiment, a sterilization and purification module 3 is further disposed in the machine body 4, and as shown in embodiment 3, the fresh air discharged from the fresh air outlet of the fresh air module 2 is sterilized and purified by the sterilization and purification module 3 before passing through the water pan 5. The specific structure has been described in detail in the foregoing embodiments, and the cabinet air conditioner indoor unit in this embodiment is a combination of the foregoing embodiments 3 and 4, and therefore, will not be described in detail here.

So far, the technical solutions of the present invention have 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 the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims (10)

1. A cabinet type air-conditioning indoor unit is characterized by comprising a unit body, wherein an air inlet and a first air outlet are formed in the unit body, a sterilization and purification module, a water pan, an evaporator and an air supply fan are sequentially arranged in the unit body from bottom to top, and the sterilization and purification module is arranged at the air inlet;

the evaporator comprises a coil, a first fin layer and a second fin layer, wherein the first fin layer and the second fin layer are arranged at intervals up and down, the coil is connected with the first fin layer and the second fin layer, the first fin layer and the second fin layer respectively comprise a plurality of fin groups which are arranged at intervals and are in a disc shape, and the fin groups of the first fin layer and the fin groups of the second fin layer are arranged in a staggered mode.

2. The cabinet air-conditioning indoor unit of claim 1, wherein the coil comprises a plurality of sub-coils corresponding to the number of the fin groups of the first fin layer, the evaporator further comprises a liquid separating ball and a liquid returning ball, one end of each sub-coil is connected to one fin group of the first fin layer and then communicated with the liquid separating ball, the other end of each sub-coil is connected to one fin group of the second fin layer and then communicated with the liquid returning ball, and the sub-coils are arranged in a serpentine shape on the fin groups.

3. The cabinet air-conditioning indoor unit of claim 1, wherein the water receiving tray comprises a circular tray and an annular tray, the circular tray and the annular tray are vertically arranged and communicated with each other through a drainage tube; and/or

The air supply fan comprises a digital turbine motor.

4. The cabinet air-conditioning indoor unit of claim 3, wherein the inner ring diameter of the annular disc is smaller than the diameter of the circular disc.

5. The cabinet air-conditioning indoor unit of claim 1, wherein the body comprises a cylindrical shell and an annular air outlet structure arranged at the top of the cylindrical shell, the air supply fan, the evaporator and the water pan are arranged in the cylindrical shell, and the first air outlet is formed on the annular air outlet structure.

6. The cabinet air-conditioning indoor unit of claim 5, wherein the annular outlet structure comprises an inner annular surface and an outer annular surface which are sleeved with each other, the rear end of the inner annular surface and the rear end of the outer annular surface are connected in a sealing manner to form an outlet cavity, and the first outlet is formed at the front end of the outlet cavity; the bottom of the outer ring surface is provided with a vent hole, and the air outlet cavity is communicated with the columnar shell through the vent hole.

7. The cabinet air-conditioning indoor unit of claim 6, wherein a second air outlet is further formed in the outer annular surface, the first air outlet is provided with a first shutter mechanism, the second air outlet is provided with a second shutter mechanism, the first shutter mechanism is configured to close or open the first air outlet when actuated, and the second shutter mechanism is configured to close or open the second air outlet when actuated.

8. The indoor unit of a cabinet air conditioner as claimed in claim 1, wherein the sterilizing and purifying module is cylindrical, and has an HEPA filter layer, a cold catalyst filter layer, an anion germicidal lamp and an ion converter disposed therein, the cold catalyst filter layer is disposed on a top of the sterilizing and purifying module, the HEPA filter layer is disposed on a bottom of the sterilizing and purifying module, the ion converter is disposed in a center of the sterilizing and purifying module, and the anion germicidal lamp is annular and surrounds a side surface of the ion converter.

9. The cabinet air-conditioning indoor unit of claim 1, further comprising a base, wherein the body is rotatably connected to the base.

10. The cabinet air-conditioning indoor unit of claim 9, wherein a gap is formed between the cabinet and the base in a vertical direction, and the air inlet is provided at a bottom of the cabinet so that air in the environment can enter the cabinet from the air inlet through the gap.

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