CN211781471U - an indoor unit - Google Patents

Abstract

The utility model discloses an indoor unit, which comprises a housin, be provided with the heat exchanger in the casing and keep apart in the outer new trend wind channel in heat exchanger place chamber, the one end in new trend wind channel has and is located first air outlet on the casing, be close to first air outlet place end department in the new trend wind channel and be equipped with electric heating module. Therefore, when heating in winter, the outdoor low-temperature air introduced by the fresh air fan is heated by the electric heating module and then turns to the lower part to be blown out. Therefore, on the one hand, the temperature of fresh air is increased, and direct cold air blowing is avoided. On the other hand, under the steering of the electric heating installation part and the guiding of the air guide part, the hot air heated by electricity is blown to the inclined downward direction, thereby avoiding the situation that the head and the feet are cold.

Description

an indoor unit

technical field

The utility model relates to the field of air conditioners, in particular to an indoor unit.

Background technique

At present, fresh air air conditioners on the market generally have two air outlets, one of which is a fresh air outlet connected to the fresh air channel where the fresh air module is located. When the air conditioner is heating, if the fresh air mode is also turned on, since the incoming outdoor air does not pass through the heat exchanger, the temperature of the fresh air blown out from the fresh air outlet is similar to the outdoor ambient temperature, so there will be a problem of reducing the indoor temperature, which will lead to influence The heating effect of the air conditioner will bring discomfort to the user.

Utility model content

In order to solve the above problems, the utility model provides an indoor unit.

According to an aspect of the embodiments of the present invention, an indoor unit is provided, including a casing, a heat exchanger and a fresh air duct isolated from a chamber where the heat exchanger is located, and the fresh air duct is arranged in the casing. One end of the air outlet has a first air outlet located on the casing, and an electric heating module is arranged in the fresh air duct near the end where the first air outlet is located. In order to heat and blow out the fresh air in winter, reduce the experience degradation caused by the temperature difference of the outlet air.

Preferably, the fresh air duct includes a first outlet of the fan, and an electric heating installation part for installing a power supply heating module is arranged between the first outlet of the fan and the first air outlet.

Preferably, the electrothermal mounting portion is configured as a cavity formed by an inwardly protruding wedge-shaped sidewall structure.

Preferably, it also includes a front panel, and the electrothermal installation portion is formed as a concave structure of the front panel.

Preferably, a ventilation grille structure is provided below the electrothermal installation portion, and the ventilation grille structure is formed as the first air outlet.

Preferably, an installation seat plate is disposed on the two opposite side walls of the electric heating installation portion, and both ends of the electric heating module are fixed on the installation seat plate by bolts.

Preferably, the lower end of the electrothermal installation portion has a first concave portion formed by the concave inside of the front panel, and the first concave portion at least partially guides the air out of the first air outlet.

Preferably, it also includes a lower panel, the upper end of the lower panel has a concave air guide portion, the upper end of the air guide portion is clamped and fixed with the middle portion of the first concave portion, and the outer surface of the air guide portion is connected to the air guide portion. The upper outer surfaces of the first recesses are smoothly butted together to form an air guide surface.

Preferably, the electrothermal installation portion and the first outlet of the fan are formed in a "convex" shape. Assemble the rear panel from top to bottom without affecting the front panel.

Therefore, when heating in winter, the outdoor low-temperature air introduced by the fresh air fan is heated by the electric heating module and then turned downward and blown out. Thus, on the one hand, the temperature of the fresh air is increased to avoid direct blowing of cold air. On the other hand, under the steering of the electric heating installation part and the guidance of the air guide part, the hot air heated by the electric heating is blown out obliquely downward, so as to avoid the situation that the head is hot and the feet are cold.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that are required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can also be obtained according to the extension of the drawings provided without creative efforts.

The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology, and are not used to limit the conditions that the present invention can be implemented. The technical substantive significance, the modification of any structure, the change of the proportional relationship or the adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope disclosed in the present utility model. Technical content must be able to cover the scope.

1 is a schematic diagram of a complete indoor unit of the present utility model;

2 is a schematic diagram of the assembly of a complete indoor unit of the present invention;

Fig. 3 is a longitudinal sectional view of an indoor unit of the present utility model;

4 is a partial enlarged view of a longitudinal section A of an indoor unit of the present utility model;

Fig. 5 is a schematic diagram showing the disassembly of the front panel of an indoor unit according to the present invention.

Description of reference numerals

100-front panel, 110-first recess, 111-first connecting part, 112-connecting groove, 120-second recess, 130-first air outlet, 140-electric heating installation part, 150-second air outlet, 160 - the third air outlet,

200-bezel,

300-lower panel, 310-air guide part, 311-second connection part, 312-connection key, 320-transition part,

400-fresh air fan, 410-clapboard, 420-fan first outlet,

500-filter element.

Detailed ways

The embodiments of the present invention will be described below by specific specific embodiments. Those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are of the present invention. Some examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The utility model discloses an indoor unit, as shown in FIG. 1 , comprising a front panel 100, two baffles 200 and a lower panel 300 covering the front panel 100, and an air outlet structure is formed in the middle and lower part of the front panel 100. to blow down.

The specific structure of the indoor unit is shown in FIG. 2 , the front panel 100 and the rear wall form the indoor unit casing, and encloses the air-conditioning cavity. The cavity is isolated from the upper heat exchange air duct and the lower fresh air air duct, the upper part is provided with a double cross-flow heat exchanger assembly, and the lower part is provided with a fresh air fan 400 . The air suction ports on both sides of the fresh air fan 400 are covered by the filter element 500 . The fresh air fan is provided with a double-sided air outlet on the upper side and a single air outlet below the double-sided air outlet. Two sides of the front panel 100 are provided with a second upper air outlet 150 and a third air outlet 160 below the second air outlet 150 . The second air outlet 150 corresponds to the double cross-flow heat exchanger assembly, and blows out the indoor circulating air. The third air outlet 160 corresponds to the double-sided air outlet provided above the fresh air blower, and blows out fresh air horizontally. The second air outlet 150 and the third air outlet 160 are covered by the baffle plate 200 which can be opened and closed. When the indoor unit is working, the two baffle plates 200 are slid and opened circumferentially on both sides respectively, exposing the second air outlet 150 and the third air outlet. For the air outlet 160, when the indoor unit is shut down, the two baffles 200 converge toward the middle until the second air outlet 150 and the third air outlet 160 are completely covered, which is classified as shut down.

The lower part of the front panel 100 is set as a concave structure, and has a first concave part 110 and a second concave part 120 , and the lower end of the first concave part 110 is connected with the upper end of the second concave part 120 . The upper end of the first concave portion 110 is hollowed out to form a first air outlet 130 , and the first air outlet 130 is covered by a ventilation grille to form an air outlet structure. The first concave portion 110 is formed as a circular arc concave structure gradually concave inward from bottom to top. The concave rate in the first concave portion 110 gradually decreases from bottom to top. The upper end of the second concave portion 120 is connected with the lower end of the first concave portion 110, forming a The flat transitional recessed structure is gradually recessed inward from bottom to top, and the recessed ratio of the second recessed portion 120 is smaller than the minimum recessed ratio of the first recessed portion 110 . Wherein, the depression ratio is formed as the depression distance corresponding to the unit height change value of the front panel 100 from bottom to top, and the depression ratio is a positive value.

The lower part of the front panel 100 is covered with a lower panel 300 . As shown in FIGS. 2-4 , the middle part of the lower panel 300 is recessed from top to bottom to form an air guide part 310 and a transition part 320 . The dent rate is the same.

As shown in FIG. 4 , the inner side of the middle portion of the first concave portion 110 is provided with a first connecting portion 111 . The first connecting portion 111 is provided with a hollow connecting groove 112 .

The upper end of the air guide portion 310 is provided with an inwardly protruding horizontal boss structure, that is, the second connecting portion 311 , which protrudes upward at the position corresponding to the position of the connecting groove 112 on the first connecting portion 311 There is a connection key 312 .

The lower end of the first connecting portion 111 on the first concave portion 110 has a hollow portion that facilitates the insertion of the second connecting portion 311 .

When the lower panel 300 is assembled, the connecting key 312 of the second connecting portion 311 on the upper portion of the lower panel 300 penetrates into the connecting groove 112 on the first connecting portion 111 . The lower end surfaces are abutted and fixed in position, so that the outer surface of the first concave portion 110 above the first connecting portion 111 and the outer surface of the air guide portion 310 are smoothly butted together to form an inclined downward wind guide surface of the air outlet structure.

The fresh air blower 400 has an upward air outlet volute structure. The air outlet volute structure has upper double-sided air outlets and single air outlet 420 below the double-sided air outlets, namely, the upper second outlet of the fan and the lower first outlet 420 of the fan. On the volute, between the second outlet of the fan and the first outlet 420 of the fan, there is a movable partition 410, one end of the partition 410 is connected to the motor on the inner wall of the volute, and the other end can be overlapped on the inner wall of the volute superior. Therefore, under the driving control of the motor, the second outlet of the fan or the first outlet 420 of the fan can be selectively closed. FIG. 3 shows the situation in which the baffle 410 closes the second outlet of the fan. At this time, the fresh air is blown out from the first outlet 420 of the fan. In the height direction of the indoor unit, the first outlet 420 of the fan is located above the first recess 110 , and the first outlet 420 of the fan faces the front panel 100 above the first recess 110 . The wind blown from the first outlet 420 of the fan is blocked by the front panel 100 above the first concave portion 110 and then turned downward, blown out from the first air outlet 130 above the first concave portion 110 and guided obliquely downward by the wind guide surface. When the partition plate 410 closes the first outlet 420 of the fan, the wind blown by the fresh air fan 400 is blown out horizontally through the third outlet 160 in the upward direction.

At the first air outlet 130, an electric heating module is provided. Specifically, the upper end of the first concave portion 110 on the front panel 100 has an electrothermal mounting portion 140 protruding into the indoor unit cavity. As shown in FIG. 5 , the electrothermal installation portion 140 is formed as a semi-closed cavity, the inner end communicates with the first outlet 420 of the fan, and the lower end is configured as a ventilation grille structure, thereby forming the first air outlet 130 . The electric heating installation portion 140 is provided with a mounting seat plate on two opposite side walls, and both ends of the electric heating module are fixed on the mounting seat plate by bolts.

When heating in winter, the partition plate 410 can close the second outlet of the fan, so that the outdoor low-temperature air introduced by the fresh air fan 400 is heated by the electric heating module and then turned downward and blown out. Thus, on the one hand, the temperature of the fresh air is increased to avoid direct blowing of cold air. On the other hand, under the direction of the electric heating installation part 140 and the guidance of the air guide part 310, the electric heated hot air is blown out obliquely downward, thereby avoiding the situation of hot head and cold feet.

In addition, the heated fresh air is blown downwards after being blocked by the front panel 100 to make the air flow softer. Due to the vortex generated by the inversion of the air flow, the heated fresh air can be quickly mixed with the low-temperature air in the lower part of the room for heat exchange and heat exchange. Effectively improve indoor air quality and avoid problems such as poor mixing and ground dust caused by fresh air blowing straight down.

The first outlet 420 of the fan and the inner end of the electric heating installation part 140 are set in a "convex" shape, and the electric heating installation part 140 has a wedge-shaped side wall, so that the electric heating installation part 140 can be inserted into the first outlet 420 of the fan for positioning and locking without affecting the front The panel 100 is assembled with the rear panel 300 from top to bottom. .

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by , "front", "rear", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying the indicated device or element. It must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. The detachable connection, or the integral connection, can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations. The embodiments of the present invention and the features of the embodiments may be combined with each other without conflict. In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

Although the present utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the present utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present invention belong to the protection scope of the present invention.

Claims (9)

1. An indoor unit, comprising a housing, characterized in that, The shell is provided with a heat exchanger and a fresh air duct isolated from the chamber where the heat exchanger is located, One end of the fresh air duct has a first air outlet (130) located on the housing, An electric heating module is provided in the fresh air duct near the end of the first air outlet (130). 2. The indoor unit according to claim 1, characterized in that, The fresh air duct includes a first outlet (420) of the fan, An electric heating installation part (140) for installation of a power supply heating module is arranged between the first outlet (420) of the fan and the first air outlet (130). 3. The indoor unit according to claim 2, characterized in that, The electrothermal mounting portion (140) is configured as a cavity formed by a wedge-shaped sidewall structure protruding inward. 4. The indoor unit of claim 3, further comprising: In the front panel (100), the electrothermal mounting portion (140) is formed as a concave structure of the front panel (100). 5. The indoor unit according to claim 2, characterized in that, A ventilation grille structure is provided below the electrothermal installation portion (140), The ventilation grille structure is formed as the first air outlet (130). 6. The indoor unit according to claim 2, characterized in that, The electric heating installation part (140) is provided with an installation seat plate on two opposite side walls, and both ends of the electric heating module are fixed on the installation seat plate by bolts. 7. The indoor unit according to claim 4, characterized in that, The lower end of the electrothermal mounting portion (140) has a first recess (110) formed by the concave inside of the front panel (100), and the first recess (110) at least partially faces the first air outlet (130). the air outlet is directed. 8. The indoor unit of claim 7, further comprising: A lower panel (300), the upper end of the lower panel (300) has a concave air guide portion (310), and the upper end of the air guide portion (310) is clamped and fixed with the middle of the first recess (110), The outer surface of the air guide portion (310) is smoothly butted with the upper outer surface of the first concave portion (110) to form an air guide surface together. 9. The indoor unit according to claim 4, characterized in that, The electrothermal installation part (140) and the first outlet (420) of the fan are formed in a "convex" type.

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