CN214275957U - Clean and small-sized vertical cabinet type indoor unit - Google Patents

Abstract

The utility model relates to a neat and small vertical cabinet type indoor unit, which comprises a case, a fan exhaust blade, an evaporator, a fan, a heat exchange tube, a plurality of heat exchange fins and an assembly welding panel, wherein each heat exchange fin comprises a fin body, an upper bending plate and a lower bending plate which are formed at the top and the bottom of the fin body, a flow guide cavity is formed between each two adjacent fin bodies and the upper bending plate and the lower bending plate, a plurality of flow guide cavities are in a grid shape side by side, and an air outlet formed by the fan exhaust blade is covered; the assembly welding panel comprises a panel main body and a wire arranging structure. The utility model discloses an aspect can avoid the air outlet air current to scurry in disorder, improves air-out efficiency, and the heat transfer fin who adds through the air outlet simultaneously can further carry out the heat transfer again to the gas after the heat transfer, and then promotes the refrigeration effect, and in addition, the vertical cabinet formula overall arrangement, the oblique of evaporimeter is put in addition, reduces the volume, and occupation space is little; on the other hand, the chaotic and tidy lead wire is avoided, and the lead wire and the switch are convenient to accurately replace.

Description

Clean and small-sized vertical cabinet type indoor unit

Technical Field

The utility model belongs to the air-cooler field, concretely relates to clean and tidy and small vertical cabinet type indoor set.

Background

The air cooler is divided into an industrial air cooler and a household air cooler, the industrial air cooler is generally used in a refrigeration house and a cold chain logistics refrigeration environment, the household air cooler is also called as a water-cooled air conditioner, and the air cooler is an evaporative cooling and ventilating unit integrating cooling, ventilating, dust prevention and smell removal.

Among the air coolers in the refrigeration industry, the split vertical cabinet type air cooler is the most common air cooler, and is mainly used for cooling the interior of a mobile equipment cab, an operation room and an electric room (room) with the ambient temperature of less than 75 ℃, so that the interior of the mobile equipment cab, the operation room and the electric room (room) can be kept at 22-35 ℃.

Specifically, the air cooler includes an indoor unit and an outdoor unit, wherein an air path formed by an evaporator and a condenser circulates to perform heat exchange of air under evaporation and condensation of a medium, thereby achieving a cooling or heating effect (that is, the working principle thereof is the same as that of an air conditioner).

However, during cooling, the cold air after heat exchange passes through the air grille and is blown out through the guide of the fan blades under the pumping of the fan, so as to realize indoor cooling.

However, the existing indoor unit has the following obvious defects:

1. because the upper end and the lower end of the grating are open for processing, when gas passes through an airflow channel formed by the grating, the gas can flee out from the upper part and the lower part, and airflow is formed in the air outlet cavity, so that the air outlet efficiency is influenced, and the refrigerating effect is poor;

2. the common neat and small-sized vertical cabinet type indoor unit has larger volume and inevitably occupies a large amount of space;

3. all operating switches, the button of indoor set all set up on the panel of indoor set, and switch, button all need connecting wire, perhaps cable, and this will cause the inside of indoor set to walk the line many, and very chaotic when changing switch, button, often can not distinguish which switch, the wire that the button corresponds, causes inconveniently.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art not enough, provide a clean and tidy and small vertical cabinet type indoor set of modified.

For solving the technical problem, the utility model discloses take following technical scheme:

a neat and compact indoor unit of a cabinet type, comprising:

a case having an intake passage and exhaust fan blades;

an evaporator that exchanges a passing airflow;

a fan for guiding the heat-exchanged air flow to the air outlet;

the assembly welding panel comprises a panel main body, the panel main body is provided with an inner side surface positioned at the inner side of the indoor unit and an outer side surface positioned at the outer side of the indoor unit,

particularly, the chassis comprises a heat exchange area positioned at the lower part, an air outlet area positioned at the middle part and an electric element mounting area positioned at the upper part, the evaporator is plate-shaped and is obliquely arranged in the heat exchange area, and the fan is positioned in the air outlet area and is communicated with the heat exchange area from the air inlet;

the assembly welding panel further comprises a wire arranging structure, the wire arranging structure is connected to the inner side face of the panel main body, the wire arranging structure comprises a first wire arranging plate with a length edge connected with the inner side face of the panel main body, and a second wire arranging plate with a length edge connected with the other length edge of the first wire arranging plate, a wire arranging channel is formed between the second wire arranging plate and the inner side face of the panel main body, and wire fixing holes are formed in the first wire arranging plate and/or the second wire arranging plate;

the indoor set is still including setting up exhaust fan leaf inboard and along the heat exchange tube that exhaust fan leaf length direction extends, set up side by side a plurality of heat transfer fins on the heat exchange tube, wherein every heat transfer fin includes the piece body, forms the board of bending on piece body top and bottom and the board of bending down, and every adjacent two the piece body reaches the board of bending and bends down and form a water conservancy diversion chamber between the board, and a plurality of water conservancy diversion chambeies are the grid form side by side, and will the air outlet that exhaust fan leaf formed covers.

Preferably, the medium inlet of the heat exchange tube is communicated with the medium inlet of the evaporator through a flow valve; the medium outlet of the heat exchange tube is communicated with the medium outlet of the evaporator. Therefore, through the mode of reposition of redundant personnel, under same outer machine, earlier through evaporimeter and gas heat transfer, then carry out the heat transfer again to the gas after the heat transfer through the medium of reposition of redundant personnel to improve cryogenic effect.

According to a specific implementation and preferred aspect of the utility model, get into the medium flow of evaporimeter is for getting into 5 times ~10 times of the medium flow of heat exchange tube. To ensure the best refrigeration effect under the best flow-dividing mode.

Preferably, the heat exchange tube is a serpentine tube and has a horizontal portion perpendicular to the fin body, and the medium inlet of the heat exchange tube is located above the medium outlet of the heat exchange tube.

Further, the medium inlet of the evaporator is positioned at the same side of the medium inlet of the heat exchange tube, and the medium outlet of the evaporator is positioned at the same side of the medium outlet of the heat exchange tube. Facilitating the flow of the medium.

According to another embodiment and preferred aspect of the present invention, the guiding cavity extends vertically and is perpendicular to the length direction of the exhaust fan blades. At this moment, the effect of heat transfer is best, also is convenient for better air-out simultaneously.

Preferably, the upper bending plate and the lower bending plate are respectively bent inwards from the side edges of the top and the bottom of the sheet body. On one hand, avoidance is formed to facilitate the installation of the components; on the other hand, the possibility of channeling is further reduced by changing the shape of the airflow cavity, and the heat exchange efficiency is further improved.

Furthermore, the upper bending plate and the lower bending plate are fixed on the same side of the same body. Thus, the fins can be integrally formed and processed conveniently.

The section of the flow guide cavity is trapezoidal or hexagonal with two trapezoids communicated from the upper bottom. Therefore, the flow guide cavity can be selected according to the actual air volume and the heat exchange effect so as to enhance the general performance of the component.

In addition, the angle formed by the evaporator and the horizontal direction is 30-60. The heat exchange of gas is facilitated, and the collection and the discharge of water are also facilitated.

Preferably, the assembly and welding panel further comprises a wiring structure, the wiring structure comprises a first wiring board and a second wiring board which are connected with the inner side surface of the panel main body on one side, and a third wiring board which is connected with the first wiring board and the second wiring board on the other side, and the first wiring board, the second wiring board, the third wiring board and the inner side surface of the panel main body are enclosed together to form a wiring channel.

Furthermore, the wiring structure is positioned at one side of the wire arranging structure, and the wires penetrate through the wiring structure in a bundled mode and are positioned through the wire arranging structure.

According to a specific implementation of the utility model and preferred aspect, reason line structure still include third reason line board, the third reason line board one side connect the medial surface of panel main part on, the length limit of first reason line board with the length limit of third reason line board connect, that is to say, first reason line board, second reason line board pass through the third reason line board be connected to the medial surface of panel main part on.

Preferably, the first wire arranging plate, the second wire arranging plate and the third wire arranging plate are integrally arranged and can be connected to the inner side surface of the panel main body in a welding mode.

Further preferably, the cross section of the first wire arranging plate, the second wire arranging plate and the third wire arranging plate is Z-shaped.

Specifically, the first line arranging plate is perpendicular to the inner side face of the panel main body, and the second line arranging plate is parallel to the inner side face of the panel main body.

Preferably, the wire fixing holes are provided with a plurality of wires, the wire fixing holes extend along the length direction of the first wire arranging plate and/or the second wire arranging plate, and each wire fixing hole can fix a bundle of wires.

Preferably, the thread fixing hole is only formed in the second thread arranging plate, and the thread fixing hole is formed in the second thread arranging plate, so that thread fixing operation is more convenient.

In addition, the assembly welding panel further comprises a bolt structure, the bolt structure comprises a bolt seat connected to the inner side face of the panel main body and a bolt rod movably arranged in the bolt seat, one end of the bolt rod forms an operation end, the other end of the bolt rod can extend out of the panel main body, the bolt structure is arranged at the corner of the panel main body, and the number of the bolt structure can be set according to actual needs.

Preferably, the panel main body is provided with a plurality of holes for installing the operating parts, and the holes are distributed around the wire arranging structure.

That is, the wires are fixed on the inner side of the panel, so that the internal wires are straightened, and disorder is avoided; when the switch is replaced, the corresponding lead can be quickly and accurately found, and the replacement is convenient; in addition, the whole panel structure is simple, and the processing cost is low.

Due to the implementation of the above technical scheme, compared with the prior art, the utility model have the following advantage:

the utility model discloses an aspect avoids the air outlet air current to scurry in disorder through the water conservancy diversion chamber setting of grid form, improves air-out efficiency, and the heat transfer fin who adds through the air outlet simultaneously can further carry out the heat transfer again to the gas after the heat transfer, and then promotes the refrigeration effect, and in addition, the vertical cabinet type overall arrangement, and the slant of evaporimeter is put, reduces the volume, and occupation space is little; on the other hand is through fixing the wire in the panel inboard, realizes the reason in order to inside wire, avoids the confusion, when changing the switch moreover, can accurately find its wire that corresponds fast, and it is convenient to change, in addition, whole panel structure is simple, and the processing cost is low.

Drawings

The invention will be described in further detail with reference to the following drawings and specific embodiments:

fig. 1 is a schematic structural view of a neat and small-sized vertical cabinet type indoor unit of the present invention;

FIG. 2 is a schematic structural view of FIG. 1 with a partial shell removed;

FIG. 3 is a perspective view of the assembled and welded panel of FIG. 1;

FIG. 4 is a rear front view of FIG. 3;

FIG. 5 is a front elevational schematic view of FIG. 3;

FIG. 6 is a schematic view showing the communication relationship between the evaporator and the heat exchange tube of the present invention;

fig. 7 is a schematic front view of the heat exchange tube and the heat exchange fins of the present invention;

FIG. 8 is a schematic bottom view of FIG. 7;

wherein: 1. a chassis; 1a, a heat exchange zone; 1b, an air outlet area; 1c, a mounting area;

2. an evaporator; 2a, a medium inlet; 2b, a medium outlet;

3. a fan;

4. a heat exchange pipe; 4a, a medium inlet; 4b, a medium outlet;

5. heat exchange fins; 50. a sheet body; 51. upwards bending the plate; 52. a lower bending plate; q, a flow guide cavity; s, exhaust fan blades;

6. a flow valve; j1, first linker; j2, second linker; p, a water drainage pipe;

B. assembling and welding the panel; b1, panel body; b10, medial surface; b11, outer side; b12, hole; b20, a first wire arranging plate; b21, a second wire arranging plate; 210. a wire fixing hole; b22, a third wire arranging plate; b23, a wire arranging channel; b30, a first wiring board; b31, a second wiring board; b32, a third wiring board; b33, routing channels; b40, a bolt seat; b41, a latch rod.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 and 2, the present embodiment relates to a neat and small-sized cabinet type indoor unit, which includes a cabinet 1, an evaporator 2, a fan 3, a heat exchange tube 4, a plurality of heat exchange fins 5 arranged on the heat exchange tube 4 side by side, and a welding panel B.

Specifically, the cabinet 1 includes a heat exchange area 1a located at a lower portion, an air outlet area 1b located at a middle portion, and an electric component mounting area 1c located at an upper portion.

In this embodiment, the air inlet channel is located at the bottom of the chassis 1 or correspondingly located at the front of the heat exchange area 1a, the exhaust fan blades s are located at the outlet of the air outlet area 1b and can swing relatively, of course, the flow direction of the outlet air can be changed, and swing blades can be further provided, which belongs to a conventional means and will not be described repeatedly herein.

The evaporator 2 exchanges the passing air flow, and exchanges the passing air flow through the principle of evaporation and heat absorption when refrigerating; on the contrary, when heating, the passing gas exchanges heat by the principle of condensation heat release.

In this example, the evaporator 2 is of the plate type and is disposed obliquely in the heat exchange area.

Specifically, the evaporator 2 forms an angle of 45 ° with the horizontal direction. The heat exchange of gas is facilitated, and the collection and the discharge of water are also facilitated.

And the fan 3 is used for guiding the heat-exchanged air flow to the air outlet, and specifically, the fan 3 is positioned in the air outlet area 1b and communicated with the heat exchange area 1a from the air inlet.

As shown in fig. 3 to 5, the assembly welding panel B includes a panel main body B1, a wire arrangement structure, a wire routing structure and a pin structure connected to the panel main body B1. Specifically, the method comprises the following steps:

the panel main body b1 has an inner side b10 positioned inside the indoor unit and an outer side b11 positioned outside the indoor unit, and the wire arrangement structure, the wire routing structure and the plug structure are all connected to the inner side b10 of the panel main body b 1.

The wire arrangement structure comprises a first wire arrangement plate b20, a second wire arrangement plate b21 and a third wire arrangement plate b22, wherein the first wire arrangement plate b20, the second wire arrangement plate b21 and the third wire arrangement plate b22 are integrally arranged. One length side of the first wire arranging plate b20 is connected with the length side of the third wire arranging plate b22, the length side of the second wire arranging plate b21 is connected with the other length side of the first wire arranging plate b20, and one side of the third wire arranging plate b22 is connected to the inner side b10 of the panel body b1, that is, the first wire arranging plate b20 and the second wire arranging plate b21 are connected to the inner side b10 of the panel body b1 through the third wire arranging plate b22, and particularly, the first wire arranging plate b20 and the second wire arranging plate b21 can be connected in a welding mode. In this embodiment: the first wire arranging plate b20 is perpendicular to the inner side b10 of the panel body b1, and the second wire arranging plate b21 is parallel to the inner side b10 of the panel body b 1.

After connection, a wire arranging channel b23 is formed between the second wire arranging plate b21 and the inner side surface b10 of the panel main body b1, and the wire fixing holes 210 are formed in the first wire arranging plate b20 and/or the second wire arranging plate b 21. Considering that the first wire arranging plate b20 is located below the second wire arranging plate b21, the wire fixing operation is more convenient when the wire fixing holes 200 are opened on the second wire arranging plate b21, so in the embodiment: the wire fixing holes 210 are opened only in the second wire management plate b 21. The wire fixing holes 210 are formed in a plurality of shapes, the plurality of wire fixing holes 210 extend along the length direction of the second wire arranging plate b21, and each wire fixing hole 210 can fix a bundle of conducting wires.

The wiring structure is located at one side of the wiring structure, the wiring structure comprises a first wiring board b30 and a second wiring board b31 which are connected with the inner side b10 of the panel main body b1 at one side, a third wiring board b32 which is connected with the first wiring board b30 and the second wiring board b31 at the other side, and a wiring channel b33 is formed by jointly enclosing the first wiring board b30, the second wiring board b31, the third wiring board b32 and the inner side b10 of the panel main body b 1.

The latch structure comprises a latch seat b40 connected to the inner side surface b10 of the panel body b1, and a latch rod b41 movably arranged in the latch seat b40, wherein one end of the latch rod b41 forms an operating end, and the other end can extend out of the panel body b 1. In this embodiment: the latch structures are arranged at the corners of the panel main body b1, and the number of the latch structures can be set according to actual needs. Thus, the panel can be installed by matching with the case of the indoor unit.

The panel main body b1 is provided with a plurality of holes b12 for mounting operation parts, and the holes b12 are distributed around the wire structure. The operation member may be a switch, an operation panel, or the like.

After the switch and the operation panel are installed in the hole b12 of the panel main body b1, the wires for connecting the switch and the operation panel uniformly pass through the wiring channel b33, then are connected with the switch and the operation panel through the wire arranging channel b23, and finally the wires are fixed through the wire fixing hole 210.

As shown in fig. 6, the heat exchange pipe 4 is disposed inside the exhaust fan blade s and extends in the length direction of the exhaust fan blade s.

In this example, the heat exchange tube 4 is a serpentine tube, the medium inlet 4a of the heat exchange tube 4 is positioned above the medium outlet 4b of the heat exchange tube 4, and the medium inlet 4a and the medium outlet 4b are positioned at opposite ends.

The medium inlet 2a of the evaporator 2 is positioned on the same side as the medium inlet 4a of the heat exchange tube 4, and the medium outlet 2b of the evaporator 2 is positioned on the same side as the medium outlet 4b of the heat exchange tube 4. Facilitating the flow of the medium.

A medium inlet 4a of the heat exchange tube 4 is communicated with a medium inlet 2a of the evaporator 2 through a flow valve 6; the medium outlet 4b of the heat exchange tube 4 communicates with the medium outlet 2b of the evaporator 2. Therefore, through the mode of reposition of redundant personnel, under same outer machine, earlier through evaporimeter and gas heat transfer, then carry out the heat transfer again to the gas after the heat transfer through the medium of reposition of redundant personnel to improve cryogenic effect.

In this case, the ratio of the medium flow entering the heat exchange tube 4 to the medium flow entering the evaporator 2 is 1: 6. to ensure the best refrigeration effect under the best flow-dividing mode.

As shown in fig. 7, a plurality of heat exchange fins 5 are arranged side by side on the heat exchange tube 4, wherein each heat exchange fin 5 comprises a fin body 50, an upper bent plate 51 and a lower bent plate 52 formed at the top and bottom of the fin body 50.

Every two adjacent sheet bodies 50, the upper bending plate 51 and the lower bending plate 52 form a flow guide cavity q, and the flow guide cavities q are arranged side by side in a grid shape and cover an air outlet formed by the exhaust fan blades s.

The flow guide cavity q extends vertically and is vertical to the length direction of the exhaust fan blade s. At this moment, the effect of heat transfer is best, also is convenient for better air-out simultaneously.

As shown in fig. 8, the upper bending plate 51 and the lower bending plate 52 are respectively bent inward from the top and bottom sides of the sheet body 50. On one hand, avoidance is formed to facilitate the installation of the components; on the other hand, the possibility of channeling is further reduced by changing the shape of the airflow cavity, and the heat exchange efficiency is further improved.

In this example, the upper bending plate 51 and the lower bending plate 52 are fixed on the same side of the same body 50. Thus, the fins can be integrally formed and processed conveniently.

The section of the flow guide cavity q is trapezoidal or hexagonal with two trapezoids communicated from the upper bottom. Therefore, the flow guide cavity can be selected according to the actual air volume and the heat exchange effect so as to enhance the general performance of the component.

In this example, a first joint j1 and a second joint j2 are formed at the lower side of the cabinet 1, wherein the first joint ji is communicated with the flow valve 6, and the second joint j2 is communicated with the medium outlet 2b of the evaporator 2 and the medium outlet 4b of the heat exchange tube 4.

In addition, the above-mentioned cabinet 1 is formed with a drain pipe p for discharging condensed water out of the cabinet 1.

In summary, the implementation process of the present embodiment is as follows:

when refrigeration is needed, the medium enters a compressor according to the following ratio of 1: 6, flow to heat exchange tube 4 and evaporimeter 2 respectively, absorb the heat by the evaporation of medium, under fan 3's effect, will carry out the heat exchange with evaporimeter 2 earlier from the inspiratory gas of inlet channel fast, the gas after the heat exchange gets into the air-out district, carries out the heat exchange by the heat transfer fin that the air outlet set up again, and then improves refrigeration effect by a wide margin.

In the same way, during heating, the principle is opposite to that of the evaporator 2, the heat exchange tube is a condenser, and the gas heat exchange process is heat dissipation.

Therefore, the present embodiment has the following advantages:

1. the grid-shaped flow guide cavity is arranged, so that airflow at an air outlet is prevented from flowing disorderly, and the air outlet efficiency is improved;

2. the heat exchange fins additionally arranged at the air outlet can further exchange heat again for the gas after heat exchange, so that the refrigeration effect is improved;

3. the vertical cabinet type layout and the inclined arrangement of the evaporator reduce the volume and occupy small space;

4. through fixing the wire in the panel inboard, realize the reason in order to inside wire, avoid the confusion, when changing the switch, can accurately find its wire that corresponds fast moreover, it is convenient to change, in addition, whole panel structure is simple, and the processing cost is low.

The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the protection scope of the present invention should not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. A neat and compact indoor unit of a cabinet type, comprising:

a case having an intake passage and exhaust fan blades;

an evaporator that exchanges a passing airflow;

a fan for guiding the heat-exchanged air flow to the air outlet;

the assembly welding panel comprises a panel main body, the panel main body is provided with an inner side surface positioned at the inner side of the indoor unit and an outer side surface positioned at the outer side of the indoor unit,

the method is characterized in that:

the evaporator is plate-shaped and is obliquely arranged in the heat exchange area, and the fan is positioned in the air outlet area and is communicated with the heat exchange area from an air inlet;

the assembly welding panel further comprises a wire arranging structure, the wire arranging structure is connected to the inner side face of the panel main body, the wire arranging structure comprises a first wire arranging plate with a length edge connected with the inner side face of the panel main body, and a second wire arranging plate with a length edge connected with the other length edge of the first wire arranging plate, a wire arranging channel is formed between the second wire arranging plate and the inner side face of the panel main body, and wire fixing holes are formed in the first wire arranging plate and/or the second wire arranging plate;

indoor set still including setting up exhaust fan leaf inboard and along the heat exchange tube that exhaust fan leaf length direction extends, set up side by side a plurality of heat transfer fins on the heat exchange tube, wherein every heat transfer fin includes the piece body, forms the board of bending on piece body top and bottom and the board of bending down, and every adjacent two the piece body reaches the board of bending and bends down and form a water conservancy diversion chamber between the board, a plurality of water conservancy diversion chambeies are the grid form side by side, and will the air outlet that exhaust fan leaf formed covers.

2. A neat and small-sized cabinet indoor unit according to claim 1, wherein: the medium inlet of the heat exchange tube is communicated with the medium inlet of the evaporator through a flow valve; and a medium outlet of the heat exchange tube is communicated with a medium outlet of the evaporator.

3. A neat and small-sized cabinet indoor unit according to claim 2, wherein: the medium flow entering the evaporator is 5-10 times of the medium flow entering the heat exchange tube.

4. A neat and small sized cabinet indoor unit according to claim 3, wherein: the heat exchange tube is a coiled tube and is provided with a horizontal part vertical to the fin body, and a medium inlet of the heat exchange tube is positioned above a medium outlet of the heat exchange tube.

5. A neat and small volume indoor unit of a cabinet type as set forth in claim 4, wherein: the medium inlet of the evaporator is positioned at the same side of the medium inlet of the heat exchange tube, and the medium outlet of the evaporator is positioned at the same side of the medium outlet of the heat exchange tube.

6. A neat and small-sized cabinet indoor unit according to claim 1, wherein: the flow guide cavity extends vertically and is vertical to the length direction of the exhaust fan blade.

7. A neat and small sized cabinet indoor unit according to claim 6, wherein: the upper bending plate and the lower bending plate are arranged from the top and the bottom side of the sheet body to be bent inwards respectively, and the upper bending plate and the lower bending plate are fixed on the same side of the sheet body.

8. A neat and small-sized cabinet indoor unit according to claim 1, wherein: the assembly welding panel further comprises a wiring structure, the wiring structure comprises a first wiring board and a second wiring board which are connected with the inner side face of the panel body on one side, and a third wiring board which is connected with the first wiring board and the second wiring board on the other side, and the first wiring board, the second wiring board, the third wiring board and the inner side face of the panel body are enclosed together to form a wiring channel.

9. A neat and small sized cabinet indoor unit according to claim 8, wherein: the routing structure is positioned on one side of the wire arranging structure; the wire arranging structure further comprises a third wire arranging plate, one surface of the third wire arranging plate is connected to the inner side surface of the panel main body, and a length edge of the first wire arranging plate is connected with a length edge of the third wire arranging plate.

10. A neat and small sized cabinet indoor unit according to claim 9, wherein: the cross sections of the first wire arranging plate, the second wire arranging plate and the third wire arranging plate are Z-shaped, wherein the first wire arranging plate is perpendicular to the inner side face of the panel main body, and the second wire arranging plate is parallel to the inner side face of the panel main body.

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