CN110500660B - Indoor unit of cabinet air conditioner - Google Patents

Abstract

The invention relates to the technical field of air conditioning, in particular to a cabinet air conditioner indoor unit. The invention aims to solve the problem of unsatisfactory heat exchange effect of the evaporator of the existing cabinet air conditioner indoor unit. For this purpose, the cabinet air conditioner indoor unit of the present invention comprises: the machine body is provided with an air inlet and a first air outlet, an air supply fan, an evaporator, a water receiving disc and a sterilization and purification module are arranged in the machine body, the water receiving disc is arranged below the evaporator, and the sterilization and purification module is arranged at the air inlet; the fresh air module is arranged below the machine body and connected with the machine body, an air suction opening and an air exhaust opening are arranged on the fresh air module, the air suction opening is communicated with the outside of the machine through a pipeline, and the air exhaust opening is communicated with the air inlet; the evaporator comprises a coil pipe and fins arranged on the coil pipe, wherein the central line of the coil pipe is spirally coiled from top to bottom around a vertical axis. By the arrangement mode, heat exchange of the cabinet air conditioner is more uniform during operation, and the heat exchange effect is better.

Description

Indoor unit of cabinet air conditioner

Technical Field

The invention 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 evaporator directly determine the size of the heat exchange area and 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 coils of the evaporator 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 evaporator 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 above-mentioned problems in the prior art, that is, to solve the problem that the heat exchange effect of the evaporator of the existing cabinet air conditioner indoor unit is not ideal, the present invention provides a cabinet air conditioner indoor unit, which includes: the device comprises a machine body, wherein an air inlet and a first air outlet are formed in the machine body, an air supply fan, an evaporator, a water receiving disc and a sterilization and purification module are arranged in the machine body, the water receiving disc is arranged below the evaporator, and the sterilization and purification module is arranged at the air inlet; the fresh air module is arranged below the machine body and connected with the machine body, an air suction opening and an air outlet are arranged on the fresh air module, the air suction opening is communicated with the outside through a pipeline, and the air outlet is communicated with the air inlet; the evaporator comprises a coil pipe and fins arranged on the coil pipe, and the central line of the coil pipe is spirally coiled around a vertical axis from top to bottom.

In the preferred technical scheme of the cabinet air conditioner indoor unit, the distance between the central line and the vertical axis is gradually reduced from top to bottom.

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 indoor unit of the cabinet air conditioner, 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 evaporator 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 cabinet air conditioner indoor unit, the sterilizing and purifying module is in a cake shape and comprises a HEPA filter layer, a cold catalyst filter layer, a negative ion sterilizing lamp and an ion converter, wherein the cold catalyst filter layer is positioned at the top of the cake shape, the HEPA filter layer is positioned at the bottom of the cake shape, the ion converter is positioned at the center of the cake shape, and the negative ion sterilizing lamp is annular and surrounds the side surface of the ion converter.

In the preferred technical scheme of the cabinet air conditioner indoor unit, the fresh air module comprises a columnar shell, and a fresh air fan and a variable speed driving mechanism which are arranged in the columnar shell, wherein the variable speed driving mechanism is connected with the fresh air fan so as to drive the fresh air fan to rotate.

In the above-mentioned cabinet air conditioner indoor unit's preferred technical scheme, variable speed actuating mechanism includes driving motor and a plurality of gear sets that the tooth ratio is different, the action wheel of a plurality of gear sets fixedly connected with driving motor's output shaft, the follow driving wheel of a plurality of gear sets fixedly connected with the pivot of fresh air fan.

In the preferred technical scheme of the cabinet air conditioner indoor unit, the air conditioner indoor unit further comprises a base, and the fresh air module is respectively and rotatably connected with the machine body and the base; and/or form the clearance between organism and the new trend module, the air outlet set up in the top of new trend module, the air intake set up in the bottom of organism.

As can be appreciated by those skilled in the art, in a preferred embodiment of the present invention, a cabinet air conditioner indoor unit includes: the device comprises a machine body, wherein an air inlet and a first air outlet are formed in the machine body, an air supply fan, an evaporator, a water receiving disc and a sterilization and purification module are arranged in the machine body, the water receiving disc is arranged below the evaporator, and the sterilization and purification module is arranged at the air inlet; the fresh air module is arranged below the machine body and connected with the machine body, an air suction opening and an air outlet are arranged on the fresh air module, the air suction opening is communicated with the outside through a pipeline, and the air outlet is communicated with the air inlet; the evaporator comprises a coil pipe and fins arranged on the coil pipe, wherein the central line of the coil pipe is spirally coiled around a vertical axis from top to bottom.

The coil pipe of the evaporator arranged in the machine body of the indoor unit of the cabinet air conditioner is arranged in a vortex-shaped manner from top to bottom around a vertical axis by the center line, so that the refrigerant flows in a vortex direction three-dimensionally when the cabinet air conditioner is in operation, heat exchange is more uniform when air flows through the evaporator, the heat exchange effect is better, and the problem that one end of the heat exchange effect is good and the other end is poor when the existing evaporator is arranged in an S shape is solved. Through setting up the new trend module for the indoor set of cabinet air conditioner 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. Through 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 floating particle in the air.

Further, the distance between the central line and the vertical axis is gradually reduced from top to bottom, so that the air flow can be fully contacted with the evaporator when flowing from bottom to top, the heat exchange efficiency is improved, and the full heat exchange with the air flow is realized.

Further, the water pan adopts a split design of arranging a circular pan and an annular pan up and down, so that the problem that the water pan cannot be arranged below the evaporator in horizontal arrangement is solved ingeniously, and the collection of condensed water is realized on the premise of not influencing air intake.

Further, through setting up annular air-out structure at the top of column shell, set up first air outlet and second air outlet on the annular air-out structure to first air outlet and second air outlet each configuration have the separation blade mechanism, make the air conditioner possess brand-new air outlet structure and two kinds of air-out forms (injection mode and diffusion mode), the air-out volume is bigger, and the air supply area is wide, and the range is far away, and the user can select the air-out mode based on needs are nimble, has subverted traditional cabinet-type machine product iterative sealed thought, promotes the development revolution of air conditioner.

Further, through setting up variable speed actuating mechanism in the new trend module and adjusting the rotational speed of new trend fan, this application can also adjust the intake of new trend, and the different wind speeds of recombination air supply fan can realize multiple air supply mode, greatly promotes the practicality of air conditioner.

Further, through with new trend module respectively with organism and base swivelling joint for organism and new trend module homoenergetic freely rotate when the installation of air conditioner, conveniently find the best installation angle, reduce the installation degree of difficulty, improve the suitability of air conditioner.

Further, a gap is formed between the machine body and the fresh air module, 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. Through setting up the air exit at the top of new trend module for air exit exhaust new trend can directly get into the organism and exchange heat, reduces indoor temperature's volatility, improves user experience.

Drawings

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

fig. 1 is a block diagram of an indoor unit of a cabinet air conditioner according to a first embodiment of the present invention;

FIG. 2A is a top view of the evaporator of the invention;

FIG. 2B is a front cross-sectional view of the evaporator of the invention;

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

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

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

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

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

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

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 invention;

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

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

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 invention;

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 invention;

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 invention.

List of 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. an evaporator; 41. a coiled pipe; 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 invention 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 invention, and are not intended to limit the scope of the present invention. For example, although the blower fan is shown as being disposed above the evaporator, this relationship is not constant and one skilled in the art can adjust it as needed to suit a particular application. If the air supply fan is obviously arranged below the water receiving disc, etc.

It should be noted that, in the description of the present invention, terms such as "center," "upper," "lower," "left," "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 should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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 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 invention can be understood by those skilled in the art according to the specific circumstances.

Example 1

Referring first to fig. 2A and 2B, the evaporator of the present invention will be described. FIG. 2A is a top view of the evaporator of the present invention; fig. 2B is a front cross-sectional view of the evaporator of the invention.

As shown in fig. 2A and 2B, in order to solve the problem of non-ideal heat exchange effect of the evaporator of the existing indoor unit of a cabinet air conditioner, the first aspect of the present application provides an evaporator 4, where the evaporator 4 includes a coil 41 and fins 42 disposed on the coil 41, and particularly, a center line of the coil 41 is spirally wound from top to bottom around a vertical axis.

The coil 41 of the evaporator 4 is arranged in a vortex-shaped manner from top to bottom around a vertical axis by the center line, so that when the evaporator 4 is arranged in the indoor unit of the cabinet air conditioner, the refrigerant flows in the coil 41 along the vortex direction, and when indoor air flows through the evaporator 4, heat exchange between the refrigerant and the evaporator 4 is more uniform, the heat exchange effect is better, and the problem that one end of the heat exchange effect is good and one end is poor when the existing evaporator 4 is arranged in an S shape is solved.

With further reference to fig. 2A and 2B, in one possible embodiment, the distance between the center line of the evaporator 4 and the vertical axis gradually decreases from top to bottom, i.e. the evaporator 4 is swirl-like from top to bottom. The fins 42 are square or circular and are provided in plurality, and each fin 42 is circumferentially sleeved on the outer wall of the coil 41 in a manner perpendicular to the axial direction of the coil 41. When the evaporator 4 is applied to a cabinet air conditioner indoor unit, the end of the coil 41 remote from the vertical axis is preferably used as an inlet, and the end near the vertical axis is preferably used as an outlet.

In the above preferred embodiment, the distance between the center line and the vertical axis is gradually reduced from top to bottom, so that the air flow can be fully contacted with the evaporator 4 when flowing from bottom to top, which is beneficial to improving the heat exchange efficiency and realizing the full heat exchange with the air flow. Through setting up the one end that vertical axis was kept away from to coil 41 as the import, the one end that is close to vertical axis sets up as the export for during the use of evaporimeter 4, the refrigerant flows to the inside by the upper end outside of vortex gradually, and in addition the air current flows along from the lower ascending direction, can form the convection current with evaporimeter 4, consequently can fully contact with the evaporimeter, is favorable to promoting heat exchange efficiency, reaches abundant heat transfer.

Of course, the above preferred embodiments are merely for illustrating the principles of the present invention, and are not intended to limit the scope of the invention, 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 an alternative embodiment, the fins 42 may be connected to the coil 41 in any manner other than around the outer wall of the coil 41 perpendicular to the axial direction of the coil 41, so long as the connection facilitates the evaporative heat dissipation of the refrigerant. For example, the fins 42 may be spirally wound around the outer wall of the coil 41 along the length direction of the coil 41, so that the air flow can be fully contacted with the fins 42 when passing through the evaporator 4, thereby achieving excellent heat exchange effect.

Of course, the alternative embodiments described above, as well as the alternative and preferred embodiments, may also be used in a cross-fit manner, thereby combining new embodiments to suit more specific application scenarios.

Example 2

A first embodiment of the indoor unit of a cabinet air conditioner according to the present invention will be described with reference to fig. 1 to 6.

Referring first to fig. 1, fig. 1 is a block diagram of an indoor unit of a cabinet air conditioner according to a first embodiment of the present invention. As shown in fig. 1, the present invention further provides a cabinet air conditioner indoor unit, which includes a machine body 1, an air inlet 111 and a first air outlet 123 (refer to fig. 3A) are provided on the machine body 1, a humidifying device 2 is provided at the first air outlet 123, a sterilization and purification module 7, a water pan 5, an evaporator 4 and an air supply fan 3 are sequentially provided in the machine body 1 along the air flow direction, the water pan 5 is provided below the evaporator 4, and the sterilization and purification module 7 is provided at the air inlet 111. The evaporator 4 is the evaporator 4 having the center line described in embodiment 1 swirl from top to bottom around the vertical axis, and the structure thereof is not described in detail in this embodiment.

Through set up above-mentioned evaporimeter 4 in cabinet air conditioner indoor set' S organism 1 for cabinet air conditioner flows along the direction top-down of vortex when the operation, thereby the refrigerant flow direction produces convection current with the air flow direction when the air current flows through evaporimeter 4, and heat transfer is more even, and the heat transfer effect is better, has avoided current evaporimeter 4 to be the problem that heat transfer effect one end is good one end is poor when the S type is arranged. 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.

With further 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-turning connection, or by a rotary damping bearing or the like with damping rotary connection. 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 evaporator 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 close to 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, is favorable to the circulation of indoor air's a large scale, and heat transfer effect and heat exchange efficiency's improvement. The base 6 is provided with a guide inclined plane, so that the air inlet can be initially guided, and the smoothness of the air inlet is improved. 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 a first air-out mode of the annular air-out structure of the present invention; fig. 3B is a cross-sectional view of a second air-out mode of the annular air-out structure of the present invention.

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 at the front end (i.e. the right end in fig. 3A) of the outer annular surface 122 and the front end (also the right end in fig. 3A) of the inner annular surface 121, a second air outlet 124 is formed at 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 includes a water tank 21 and an atomizer 22 disposed in the water tank 21, such as an ultrasonic atomizer or an air compression atomizer, wherein the water tank 21 is fixedly connected to the bottom of the inner ring surface 121, and the atomizer 22 can atomize the 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.

In particular, an air guiding structure is further provided on the inner annular surface 121 and/or the outer annular surface 122, which is configured to gradually reduce the air outlet width at the air outlet. 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.

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 invention; fig. 4B is a structural view of a second embodiment of the drip tray of the present invention.

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 split type design that round dish 51 and annular dish 52 arranged from top to bottom is adopted in water collector 5, has solved the problem that can't arrange water collector 5 below the horizontal arrangement of evaporimeter 4 in this application ingeniously, realizes the collection of comdenstion water under the prerequisite that does not influence the air inlet. Of course, the particular form of the drip tray 5 described above is not intended to be limiting, and any modification would fall within the scope of the present application without departing from the split-up and split-down designs of the present application.

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

As shown in fig. 5A and 5B, the sterilization and purification module 7 is in a cake shape, and includes a HEPA filter layer 71, a cold catalyst filter layer 72, a negative ion sterilization lamp 73 and an ion transformer 74, wherein 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 sterilization lamp 73 is provided with a plurality of negative ion sterilization lamps and surrounds the side surface 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 can generate a large amount of negative ions in the electrified state, and researches show that the air contains a proper amount of negative ions, so that the air can be efficiently dedusted, sterilized and purified, and meanwhile, oxygen molecules in the air can be activated to form oxygen-carrying negative ions, so that air molecules are activated, the lung function of a human body is improved, metabolism is promoted, disease resistance is enhanced, the central nervous system is regulated, and the human body is refreshed, full of vigor and the like.

The negative ion sterilization lamp 73 is annularly arranged around the side surface of the ion converter 74, can irradiate and sterilize the air passing through the sterilization and purification module 7, and has the effects of 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 or more of them may be selected by those skilled in the art as the sterilizing and purifying module 7 after being recombined for a specific application scenario to be installed in the indoor unit of the cabinet air conditioner, and the combination does not deviate from the principle of the present application, and therefore, should fall within the scope of protection 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 invention 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 invention.

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 uniformly heat-exchanged with the evaporator 4 arranged in a vortex shape, and then is sent into the air supply cavity by the digital turbine motor. 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 case where the humidifying device 2 is provided on the body 1 and the sterilizing and purifying module 7, the water pan 5, the evaporator 4, and the blower fan 3 are provided in the body 1, the above features are not all essential, and those skilled in the art will understand that the above arrangement may be appropriately 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 of the present application will be described below 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 invention; fig. 8 is a structural diagram of the fresh air module of the present invention.

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.

Through setting up variable speed actuating mechanism 83 in new trend module 8 and adjusting the rotational speed of new trend fan 82, this application can also adjust the intake of new trend, and the different wind speeds of recombination air supply fan 3 can realize multiple air supply mode, greatly promotes the practicality of air conditioner.

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 invention; 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 invention; 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 invention.

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 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.

Thus far, the technical solution of the present invention 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 invention 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 invention, and such modifications and substitutions will fall within the scope of the present invention.

Claims (9)

1. A cabinet air conditioner indoor unit, the cabinet air conditioner indoor unit comprising:

the device comprises a machine body, wherein an air inlet and a first air outlet are formed in the machine body, an air supply fan, an evaporator, a water receiving disc and a sterilization and purification module are arranged in the machine body, the water receiving disc is arranged below the evaporator, and the sterilization and purification module is arranged at the air inlet;

the fresh air module is arranged below the machine body and connected with the machine body, an air suction opening and an air outlet are arranged on the fresh air module, the air suction opening is communicated with the outside through a pipeline, and the air outlet is communicated with the air inlet;

the evaporator comprises a coil pipe and fins arranged on the coil pipe, wherein the central line of the coil pipe is spirally coiled around a vertical axis from top to bottom;

the fresh air module comprises a columnar shell, and a fresh air fan and a variable speed driving mechanism which are arranged in the columnar shell, wherein the variable speed driving mechanism is connected with the fresh air fan so as to drive the fresh air fan to rotate, so that the fresh air fan can operate at a rotating speed lower than, approximately equal to or higher than that of the air supply fan;

the machine body and the fresh air module form a gap, the air outlet is arranged at the top of the fresh air module, and the air inlet is arranged at the bottom of the machine body.

2. The indoor unit of claim 1, wherein a distance between the center line and the vertical axis decreases gradually from top to bottom.

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 body includes a cylindrical housing and an annular air outlet structure disposed at a top of the cylindrical housing, the air supply fan, the evaporator and the water pan are disposed in the cylindrical housing, and the annular air outlet structure is formed with the first air outlet.

5. The indoor unit of claim 4, wherein 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 of outer annular face still is provided with the ventilation hole, the air-out chamber passes through the ventilation hole with column shell intercommunication.

6. The indoor unit of claim 5, 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 operation, and the second blocking piece mechanism is configured to close or open the second air outlet when in operation.

7. The indoor unit of claim 1, wherein the sterilizing and purifying module is in a cake shape and comprises a HEPA filter layer, a cold catalyst filter layer, a negative ion sterilizing lamp and an ion transformer, wherein the cold catalyst filter layer is positioned at the top of the cake shape, the HEPA filter layer is positioned at the bottom of the cake shape, the ion transformer is positioned at the center of the cake shape, and the negative ion sterilizing lamp is in a ring shape and surrounds the side surface of the ion transformer.

8. The indoor unit of claim 1, wherein the variable speed driving mechanism comprises a driving motor and a plurality of gear sets with different gear ratios, driving wheels of the plurality of gear sets are fixedly connected to an output shaft of the driving motor, and driven wheels of the plurality of gear sets are fixedly connected to a rotating shaft of the fresh air fan.

9. The indoor unit of claim 1, further comprising a base, wherein the fresh air module is rotatably coupled to the housing and the base, respectively.

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