CN208011906U - Wall indoor unit and air conditioner - Google Patents

Abstract

The utility model discloses a wall-mounted indoor unit and an air conditioner with the wall-mounted indoor unit, wherein the wall-mounted indoor unit includes a shell, a cross-flow fan wheel and a single-row heat exchanger including a shell, a cross-flow wind wheel and a single-row heat exchanger. In a heat exchanger, the housing has an air inlet, an air outlet, and a heat exchange air passage connecting the air inlet and the air outlet; the cross-flow fan wheel is arranged in the heat exchange air passage; the single-row heat exchange The heat exchanger is arranged in the heat exchange air channel, and is located between the cross-flow fan wheel and the air inlet. The single-row heat exchanger includes a plurality of fins arranged side by side, and the width of each fin is 10-30 mm, and the distance between two adjacent fins is 0.5-2.0 mm. The wall-mounted indoor unit provided by the technical solution of the utility model improves the user experience comfort.

Description

Wall-mounted indoor unit and air conditioner

technical field

The utility model relates to the technical field of air conditioning, in particular to a wall-mounted indoor unit and an air conditioner.

Background technique

In the prior art, in order to make the outlet air temperature more uniform after heat exchange by the heat exchanger, the wall-mounted indoor unit usually adopts a double-row heat exchanger. Due to the use of double-row heat exchangers, when the distance between the plates of the heat exchangers is too dense, the wind resistance will be large, and the fans, especially the cross-flow fans, need to overcome the large resistance, which will cause the fans to have small air volume, high power, and loud noise. problems, leading to low user experience comfort.

Utility model content

The main purpose of the utility model is to provide a wall-mounted indoor unit and an air conditioner with the wall-mounted indoor unit, aiming at improving user experience comfort.

In order to achieve the above purpose, the utility model proposes a wall-mounted indoor unit, which includes:

A casing, the casing has an air inlet, an air outlet, and a heat exchange air passage connecting the air inlet and the air outlet;

The cross-flow wind wheel is arranged in the heat exchange air channel;

A single-row heat exchanger is arranged in the heat exchange air duct and is located between the cross-flow fan wheel and the air inlet. The single-row heat exchanger includes a plurality of fins arranged side by side, and each of the The width of the fins is 10-30 mm, and the distance between two adjacent fins is 0.5-2.0 mm.

Preferably, when the wall-mounted indoor unit is in heating mode, the refrigerant inlet is arranged at the rear end of the single-row heat exchanger, and the refrigerant outlet is arranged at the front end of the single-row heat exchanger.

Preferably, the single-row heat exchanger includes a rear heat exchange part and a front heat exchange part extending forward from the upper end of the rear heat exchange part, and the front heat exchange part includes a first heat exchange part and a second heat exchange part, the second heat exchange part is inclined from the lower end of the first heat exchange part toward the side close to the cross-flow wind wheel; The first refrigerant inlet of the part, and the refrigerant outlet is provided at the lower end of the second heat exchange part.

Preferably, the refrigerant inlet further includes a second refrigerant inlet provided at the first heat exchange part, and the first heat exchange part and the rear heat exchange part communicate with the second heat exchange part respectively.

Preferably, the second heat exchange part includes a third heat exchange part and a fourth heat exchange part arranged up and down, and the fourth heat exchange part moves from the lower end of the third heat exchange part toward the One side of the air flow wheel is arranged obliquely; the refrigerant outlet is arranged at the lower end of the fourth heat exchange part, and the first heat exchange part communicates with the fourth heat exchange part through the third heat exchange part, so The rear heat exchange part communicates with the fourth heat exchange part.

Preferably, the fins include a first fin corresponding to the rear heat exchange part, the upper end of the first fin is provided with a first tube hole, and the lower end of the first fin is provided with a second tube holes, the diameter of the first pipe hole is smaller than the diameter of the second pipe hole.

Preferably, the fins further include a second fin corresponding to the front heat exchange part, the upper end of the second fin is provided with a third tube hole, and the lower end of the second fin is provided with a fourth tube hole. The diameter of the third pipe hole is larger than the diameter of the fourth pipe hole.

Preferably, the width of each fin is 18-25 mm.

Preferably, the distance between two adjacent fins is 0.8-1.2 mm.

The utility model also proposes an air conditioner, the air conditioner includes an outdoor unit and a wall-mounted indoor unit, and the wall-mounted indoor unit includes:

A casing, the casing has an air inlet, an air outlet, and a heat exchange air passage connecting the air inlet and the air outlet;

The cross-flow wind wheel is arranged in the heat exchange air channel;

A single-row heat exchanger is arranged in the heat exchange air duct and is located between the cross-flow fan wheel and the air inlet. The single-row heat exchanger includes a plurality of fins arranged side by side, and each of the The width of the fins is 10-30 mm, and the distance between two adjacent fins is 0.5-2.0 mm.

The technical proposal of the present utility model arranges a single-row heat exchanger in the heat-exchanging air duct. Since the single-row heat exchanger is adopted, the wind resistance of the air flow to the cross-flow fan wheel is small, so the fin width of the single-row heat exchanger can be increased. And reduce the spacing between two adjacent fins to improve the heat exchange efficiency of the single-row heat exchanger; wherein, the width of the fins is 10-30mm, and the distance between the adjacent two fins is 0.5～2.0mm. This design, on the one hand, can increase the air volume and improve the heat exchange efficiency of the single-row heat exchanger; on the other hand, it can also reduce the power of the cross-flow wind wheel and reduce the noise, thereby improving the user's experience comfort. At the same time, by setting the refrigerant inlet at the rear end of the single-row heat exchanger and the refrigerant outlet at the front end of the single-row heat exchanger, the refrigerant flows in from the rear side of the single-row heat exchanger and flows from the front side of the single-row heat exchanger. Outflow, because the temperature of the front end of the single-row heat exchanger is relatively low, and the temperature of the rear end is relatively high, so that when the air is discharged, the temperature of the upper airflow is relatively low, and the temperature of the lower airflow is relatively high, so that the low-temperature airflow presses the high-temperature airflow and rises , improve the heating efficiency, and further improve the user's experience comfort.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative work.

Fig. 1 is a structural schematic diagram of the wall-mounted indoor unit of the present invention;

Fig. 2 is a sectional view of the wall-mounted indoor unit shown in Fig. 1;

Fig. 3 is a schematic structural view of an embodiment of a single-row heat exchanger of the present invention;

Fig. 4 is a schematic structural view of another embodiment of the single-row heat exchanger of the present invention;

Fig. 5 is a schematic structural view of another embodiment of the single-row heat exchanger of the present invention.

Explanation of reference numbers:

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present utility model, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the relative positional relationship, movement conditions, etc. between the components shown in the figure below are changed, if the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. Implying their relative importance or implying the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , also not within the scope of protection required by the utility model.

The utility model provides a wall-mounted indoor unit and an air conditioner with the wall-mounted indoor unit.

Referring to FIG. 1 and FIG. 2 , the utility model provides a wall-mounted indoor unit 100 . The wall-mounted indoor unit 100 includes a casing 110 , a cross-flow fan wheel 200 and a single-row heat exchanger 300 . The housing 110 has an air inlet 111 , an air outlet 112 , and a heat exchange air passage connecting the air inlet 111 and the air outlet 112 . The cross-flow fan wheel 200 is arranged in the heat exchange air duct to drive the indoor air flow in through the air inlet 111 and out through the air outlet 112 . The single-row heat exchanger 300 is arranged in the heat exchange air channel, and is located between the cross-flow fan wheel 200 and the air inlet 111, and the single-row heat exchanger 300 includes a plurality of fins arranged side by side , the width of each of the fins is 10-30 mm, and the distance between two adjacent fins is 0.5-2.0 mm.

Specifically, the air inlet 111 is opened at the upper end of the housing 110, the air outlet 112 is opened at the front end of the housing 110, and the indoor air flows into the wall-mounted indoor unit 100 from the air inlet 111, and passes through a single row After exchanging heat in the heat exchanger 300 , it flows out from the air outlet 112 . Since this application adopts a single-row heat exchanger 300, compared with the existing double-row heat exchanger, the wind resistance is small, so the width of each fin can be increased, and the gap between two adjacent fins can be reduced. the distance. Wherein, the width of each of the fins is preferably 18-25 mm, and the distance between two adjacent fins is preferably 0.8-1.2 mm.

The single-row heat exchanger 300 is arranged around the cross-flow impeller 200. The single-row heat exchanger 300 is roughly arranged in a V shape. Of course, the single-row heat exchanger 300 can also be arranged in a U shape. Make specific restrictions. The shape and refrigerant flow paths of the single row heat exchanger 300 will be described in detail later.

When the wall-mounted indoor unit 100 is in the heating mode, the refrigerant inlet 330 is arranged at the rear end of the single-row heat exchanger 300 , and the refrigerant outlet 340 is arranged at the front end of the single-row heat exchanger 300 . In this way, the refrigerant flows in from the rear end of the single-row heat exchanger 300 and flows out from the front end of the single-row heat exchanger 300. Since the temperature of the front end of the single-row heat exchanger 300 is relatively low and the temperature at the rear end is relatively high, resulting in air flow , the heating efficiency is improved. In addition, the most comfortable state is not the uniform temperature of the air outlet of the air conditioner. Especially when the air conditioner is in the heating mode, the temperature difference that can make the user's hands and feet warm and the head cool is the most comfortable state. However, in the existing wall-mounted indoor unit 100, the temperature of the airflow on the upper side of the air outlet 112 is often higher than that on the lower side of the air outlet 112. Since the hot air is lighter in mass, it will flow upward. In this way, when the air conditioner is in the heating mode, there will be a large amount of hot air flowing upwards, that is, the hot air will gather on the upper floor, and the cold air will gather on the lower floor, which will cause the user's head to be hot and hands and feet to be cold and uncomfortable. Therefore, in the present application, by setting the refrigerant inlet 330 at the rear end of the single-row heat exchanger 300, and setting the refrigerant outlet 340 at the front end of the single-row heat exchanger 300, the temperature of the airflow on the upper side of the air outlet 112 is biased. Low, the temperature of the airflow on the lower side of the air outlet 112 is relatively high, which realizes the comfort of blowing cold air from the upper layer and hot air from the lower layer, thereby improving the user's experience comfort.

The technical proposal of the present utility model arranges the single-row heat exchanger 300 in the heat-exchanging air channel. Since the single-row heat exchanger 300 is adopted, the air resistance of the air flow to the cross-flow wind wheel 200 is small, so the single-row heat exchanger 300 can be increased. Fin width, and reduce the distance between two adjacent fins, to improve the heat exchange efficiency of the single-row heat exchanger 300; wherein, the width of the fins is 10 ~ 30mm, two adjacent fins The distance between them is 0.5-2.0 mm. Such a design, on the one hand, can increase the air volume and improve the heat exchange efficiency of the single-row heat exchanger 300; on the other hand, it can also reduce the power of the cross-flow wind wheel 200, reduce noise, and thus improve user experience comfort. At the same time, by setting the refrigerant inlet 330 at the rear end of the single-row heat exchanger 300, and setting the refrigerant outlet 340 at the front end of the single-row heat exchanger 300, the refrigerant flows in from the rear end of the single-row heat exchanger 300, and flows from the single-row heat exchanger. The front end of the heat exchanger 300 flows out. Since the front end temperature of the single-row heat exchanger 300 is relatively low and the rear end temperature is relatively high, when the air is discharged, the temperature of the upper airflow is relatively low and the temperature of the lower airflow is relatively high. The airflow rises against the high-temperature airflow, which improves the heating efficiency and further improves the user's + experience comfort.

Referring to FIG. 2 , the single-row heat exchanger 300 includes a rear heat exchange portion 320 and a front heat exchange portion 310 extending forward from an upper end of the rear heat exchange portion 320 . The front heat exchange part 310 and the rear heat exchange part 320 are arranged at an angle, and the upper end of the front heat exchange part 310 is connected to the upper end of the rear heat exchange part 320 . Wherein, the refrigerant inlet 330 may be provided at the rear heat exchange part 320, or at the upper end of the front heat exchange part 310, and there is no specific limitation on the number of the refrigerant inlet 330, for example, it may be One, two or more; the refrigerant outlet 340 is provided at the lower end of the front heat exchange part 310 .

Specifically, please refer to FIG. 3 and FIG. 4 together. The front heat exchange part 310 includes a first heat exchange part 311 and a second heat exchange part 312 arranged vertically. The lower end of the first heat exchange portion 311 is inclined toward a side close to the cross-flow fan 200 . The refrigerant outlet 340 is disposed at a lower end of the second heat exchange portion 312 .

In one embodiment, the refrigerant inlet 330 includes a first refrigerant inlet 331 disposed at the rear heat exchanging portion 320 , and a second refrigerant inlet 332 disposed at the first heat exchanging portion 311 . Wherein, the first heat exchange part 311 and the rear heat exchange part 320 communicate with the second heat exchange part 312 respectively. That is, a part of the refrigerant flows into the rear heat exchange part 320 through the first refrigerant inlet 331 , and another part of the refrigerant flows into the first heat exchange part 311 through the second refrigerant inlet 332 , and the two parts of refrigerant flow into the second heat exchange part 312 The upper end finally flows out through the refrigerant outlet 340 at the lower end of the second heat exchange portion 312 . Preferably, referring to FIG. 3 , the first refrigerant inlet 331 may be provided at the lower end of the rear heat exchange part 320 , and the second refrigerant inlet 332 may be provided at the upper end of the first heat exchange part 311 . Certainly, the first refrigerant inlet 331 may also be provided at the upper end of the rear heat exchange part 320 , and the second refrigerant inlet 332 may also be provided at the lower end of the first heat exchange part 311 , which is not limited here. It should be noted that the direction indicated by the arrow in FIG. 3 is the flow direction of the refrigerant.

Referring to FIG. 4 , in yet another embodiment, the refrigerant inlet 330 only includes the first refrigerant inlet 331 provided in the rear heat exchange part 320 . Wherein, the rear heat exchange part 320 communicates with the second heat exchange part 312 through the first heat exchange part 311 . That is, the refrigerant flows in from the first refrigerant inlet 331 , flows through the rear heat exchange part 320 , the first heat exchange part 311 , and the second heat exchange part 312 in sequence, and then flows out from the lower end of the refrigerant outlet 340 . It should be noted that the direction indicated by the arrow in FIG. 4 is the flow direction of the refrigerant.

Referring to FIG. 5 , in yet another embodiment, the second heat exchange portion 312 includes a third heat exchange portion 313 and a fourth heat exchange portion 314 arranged vertically, and the fourth heat exchange portion 314 starts from the The lower end of the third heat exchange portion 313 is inclined toward a side close to the cross-flow rotor 200 . The refrigerant outlet 340 is provided at the lower end of the fourth heat exchange part 314, the first heat exchange part 311 communicates with the fourth heat exchange part 314 through the third heat exchange part 313, and the rear heat exchange part 314 communicates with the fourth heat exchange part 314. The heat part 320 communicates with the fourth heat exchange part 314 .

In this way, a part of the refrigerant flows into the rear heat exchange part 320 through the first refrigerant inlet 331 , and another part of the refrigerant flows through the first heat exchange part 311 and the third heat exchange part through the second refrigerant inlet 332 in sequence. part 313 , the two parts of refrigerant flow together to the upper end of the fourth heat exchange part 314 , and finally flow out through the refrigerant outlet 340 at the lower end of the fourth heat exchange part 314 . It should be noted that the direction indicated by the arrow in FIG. 4 is the flow direction of the refrigerant.

Please refer to FIG. 2 , FIG. 3 and FIG. 4 again. In the above embodiment, in order to further improve the heating efficiency and improve the experience comfort of the user, the fins include a first fin corresponding to the rear heat exchange part 320 The upper end of the first fin 351 is provided with a first tube hole 352, and the lower end of the first fin 351 is provided with a second tube hole 353. The diameter of the first tube hole 352 is smaller than that of the first tube hole 351. The aperture of the second pipe hole 353.

Further, the fins also include a second fin 354 corresponding to the front heat exchange part 310, a third tube hole 355 is provided at the upper end of the second fin 354, and a third tube hole 355 is provided on the upper end of the second fin 354. A fourth tube hole 356 is provided at the lower end, and the diameter of the third tube hole 355 is larger than that of the fourth tube hole 356 . Here, the second fins 354 may include third fins corresponding to the first heat exchange part 311 and fourth fins corresponding to the second heat exchange part 312 .

In addition, it should be noted that, in the above embodiments, the fins may be flat sheets, corrugated sheets or window sheets, wherein the window sheets may be shutters or bridge sheets. In order to allow the condensed water on the fins to slide down smoothly and wash away the dust on the fins, so as to realize the self-cleaning of the fins, the fins are preferably flat or corrugated.

The utility model also proposes an air conditioner, the air conditioner includes an outdoor unit and a wall-mounted indoor unit 100, the specific structure of the wall-mounted indoor unit 100 refers to the above-mentioned embodiments, since this air-conditioner adopts all the technologies of all the above-mentioned embodiments Therefore, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be repeated here.

The above is only a preferred embodiment of the present utility model, and does not therefore limit the scope of the patent of the present utility model. Under the inventive concept of the present utility model, the equivalent structural transformation made by using the specification of the utility model and the contents of the accompanying drawings, or Direct/indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims (11)

1. A wall-mounted indoor unit, characterized in that, the wall-mounted indoor unit comprises: A casing, the casing has an air inlet, an air outlet, and a heat exchange air passage connecting the air inlet and the air outlet; The cross-flow wind wheel is arranged in the heat exchange air channel; A single-row heat exchanger is arranged in the heat exchange air duct and is located between the cross-flow fan wheel and the air inlet. The single-row heat exchanger includes a plurality of fins arranged side by side, and each of the The width of the fins is 10-30 mm, and the distance between two adjacent fins is 0.5-2.0 mm. 2. The wall-mounted indoor unit according to claim 1, wherein when the wall-mounted indoor unit is in the heating mode, the refrigerant inlet is arranged at the rear end of the single-row heat exchanger, and the refrigerant outlet is arranged at the rear end of the single-row heat exchanger. The front end of the single-row heat exchanger is described. 3. The wall-mounted indoor unit according to claim 2, wherein the single-row heat exchanger comprises a rear heat exchange part and a front heat exchange part extending forward from the upper end of the rear heat exchange part, so The front heat exchange part includes a first heat exchange part and a second heat exchange part arranged vertically, and the second heat exchange part is directed from the lower end of the first heat exchange part to the side close to the cross-flow fan wheel Inclined arrangement; the refrigerant inlet includes a first refrigerant inlet arranged at the rear heat exchange part, and the refrigerant outlet is arranged at the lower end of the second heat exchange part. 4. The wall-mounted indoor unit according to claim 3, wherein the refrigerant inlet further comprises a second refrigerant inlet provided on the first heat exchange part, and the first heat exchange part, the The rear heat exchange parts communicate with the second heat exchange parts respectively. 5. The wall-mounted indoor unit according to claim 4, wherein the second heat exchange part comprises a third heat exchange part and a fourth heat exchange part arranged vertically, and the fourth heat exchange part It is inclined from the lower end of the third heat exchange part toward the side close to the cross-flow wind wheel; the refrigerant outlet is provided at the lower end of the fourth heat exchange part, and the first heat exchange part passes through the first heat exchange part The third heat exchange part communicates with the fourth heat exchange part, and the rear heat exchange part communicates with the fourth heat exchange part. 6. The wall-mounted indoor unit according to claim 3, wherein the fins include a first fin corresponding to the rear heat exchange part, and a first tube is arranged on the upper end of the first fin The lower end of the first fin is provided with a second tube hole, and the diameter of the first tube hole is smaller than that of the second tube hole. 7. The wall-mounted indoor unit according to claim 6, wherein the fins further include second fins corresponding to the front heat exchanging part, and a third fin is arranged on the upper end of the second fins. A tube hole, a fourth tube hole is provided at the lower end of the second fin, and the diameter of the third tube hole is larger than that of the fourth tube hole. 8. The wall-mounted indoor unit according to any one of claims 1 to 7, characterized in that the width of each fin is 18-25 mm. 9. The wall-mounted indoor unit according to any one of claims 1 to 7, wherein the distance between two adjacent fins is 0.8-1.2 mm. 10. The wall-mounted indoor unit according to any one of claims 1 to 7, wherein the fins are flat or corrugated. 11. An air conditioner, characterized by comprising an outdoor unit and a wall-mounted indoor unit according to any one of claims 1-10.