CN106482213A - A kind of mixed flow air-conditioning - Google Patents

Abstract

The invention relates to a mixed-flow air conditioner, which comprises a casing with an air inlet and an air outlet, a fan arranged in the casing, a heat exchange device, a straight passage, a first heat exchange air channel and a second heat exchange air channel. The through passage is configured to communicate upstream of the heat exchange device and downstream of the heat exchange device to allow air upstream of the heat exchange device to flow directly through the through passage to downstream of the heat exchange device. The first heat exchange air channel communicates with the straight-through passage, and is configured to allow part of the air after heat exchange by the heat exchange device to flow to the air outlet through the first heat exchange air channel, mix with the air from the straight-through passage, and blow it along the first direction To the ambient space, thereby easing the air temperature of the air outlet of the mixed-flow air conditioner and improving the comfort of the mixed-flow air conditioner. The second heat exchange air channel is configured to allow part of the air exchanged by the heat exchange device to flow to the air outlet through the second heat exchange air channel, and blow to the environment space along the second direction, so that the temperature of the environment space can be quickly relieved.

Description

A mixed flow air conditioner

technical field

The invention relates to household appliances, in particular to a mixed-flow air conditioner.

Background technique

The air duct structure of a common air conditioner in the existing market is generally composed of an air inlet, a centrifugal fan, an evaporator and an air outlet. Indoor air enters the interior of the air conditioner from the air inlet, and after being centrifugally accelerated by the centrifugal fan, the air passes through the evaporator for heat exchange, and the air after heat exchange is blown into the room through the air outlet. However, the temperature of the cool air blown out from the air outlet is too low and not soft enough, and it will cause discomfort to the user when blown on the body.

In order to solve the above-mentioned technical problems, a drainage air conditioner has appeared in the prior art, which introduces a little indoor air at the air outlet of the air conditioner, and mixes it with the air after heat exchange by the evaporator, so that the blown air is softer. However, the effect of such a drainage air conditioner for alleviating the overall temperature in the room is not obvious, and the cooling and/or heating speed is relatively slow. At the same time, this kind of drainage air conditioner also requires a comprehensive transformation of the air duct structure and air outlet of the air conditioner, resulting in an oversized air conditioner and high air conditioning costs.

Contents of the invention

An object of the present invention is to overcome at least one defect in the prior art, and provide a mixed-flow air conditioner with high comfort and the ability to rapidly relieve indoor temperature.

Another object of the present invention is to simplify the internal structure of the mixed-flow air conditioner, reduce the volume of the mixed-flow air conditioner, and reduce the cost.

Another object of the present invention is to prevent condensation inside the mixed-flow air conditioner.

In order to achieve the above object, the present invention provides a mixed-flow air conditioner, which includes a casing with an air inlet and an air outlet, and a fan and a heat exchange device arranged in the casing. The mixed-flow air conditioner also includes:

a straight passage configured to connect the upstream of the heat exchange device with the downstream of the heat exchange device, so as to allow the air upstream of the heat exchange device to directly flow through the straight passage to the downstream of the heat exchange device;

The first heat exchange air channel communicates with the straight-through passage, and is configured to allow part of the air after heat exchange by the heat exchange device to flow to the air outlet through the first heat exchange air channel, and The air in the through passage is mixed and blown to the ambient space along a first direction; and

The second heat exchange air channel is configured to allow part of the air after heat exchange by the heat exchange device to flow to the air outlet through the second heat exchange air channel, and blow it to the environment space along the second direction.

Optionally, the first direction is a direction extending obliquely downward from the air outlet, and the second direction is a direction extending obliquely upward from the air outlet.

Optionally, the air outlet has a first air outlet and a second air outlet respectively communicating with the first heat exchange air passage and the second heat exchange air passage, and the air outlet direction of the first air outlet is Along the first direction, the air outlet direction of the second air outlet is along the second direction; and

The straight passage directly communicates with the first air outlet, so that the air from the straight passage and the heat-exchanged air from the first heat exchange air channel are mixed at the first air outlet.

Optionally, the heat exchange device is arranged obliquely in the housing, and there is a gap between the end of the heat exchange device and the housing.

Optionally, the mixed flow air conditioner also includes:

An air deflector arranged in the casing, the air deflector extends from the downstream of the heat exchange device through the gap to the first air outlet or directly extends from the gap to the first air outlet tuyere.

Optionally, the mixed flow air conditioner also includes:

a baffle extending from the inside of the housing to the air outlet, so that the first air outlet and the second air outlet are separated by the baffle; and

The first heat exchange air passage is formed between the partition plate and the air guide plate, and the second heat exchange air passage is formed between the partition plate and the housing.

Optionally, the heat exchange device includes two evaporators arranged in series, and a space is formed between the two evaporators through which a partition can pass; and

The baffle extends from the upstream of the heat exchange device through the gap to the air outlet, so that one of the two evaporators is located in the first heat exchange air channel, so that all The other evaporator of the two evaporators is located in the second heat exchange air passage.

Optionally, the heat exchange device includes an evaporator with a heat exchange gap, and the partition plate extends from the upward side of the evaporator to the air outlet, so that a part of the evaporator Opposite to the air inlet end of the first heat exchange air passage, make another part of the evaporator opposite to the air inlet end of the second heat exchange air passage.

Optionally, the baffle includes a first air guiding section and a second air guiding section adjacent to the air outlet;

The first wind guide section is configured to extend obliquely downward, and the second air guide section is configured to extend obliquely upward.

Optionally, the included angle between the first direction and the horizontal plane is 15-90°, and the included angle between the second direction and the horizontal plane is 15-90°.

The mixed-flow air conditioner of the present invention includes a straight-through passage, a first heat exchange air passage and a second heat exchange air passage, and the direct passage connects the upstream of the heat exchange device and the downstream of the heat exchange device, and the first heat exchange air passage allows the air to pass through the heat exchange device. Part of the air after heat exchange flows through it to the air outlet, and is mixed with the air from the straight-through passage and blown to the environment space along the first direction. The second heat exchange air channel allows part of the air after heat exchange through the heat exchange device to flow through it. the air outlet, and blow to the environment space along the second direction. That is to say, part of the air flowing towards the air outlet driven by the fan passes through the heat exchange gap of the heat exchange device itself and then flows to the air outlet, and the other part of the air flows directly to the air outlet through the through passage. Another part of the air flowing through the heat exchange gap of the heat exchange device itself is further divided, so that it flows to the air outlet along the first heat exchange air channel and the second heat exchange air channel respectively. The heat-exchanged air flowing through the first heat-exchange air channel is mixed with the non-heat-exchanged air passing through the straight-through passage, and then blown to the environment space along the first direction, thereby easing the temperature of the air outlet of the mixed-flow air conditioner and improving the air temperature. The comfort of mixed flow air conditioning. The heat-exchanged air flowing through the second heat exchange air channel is directly blown to the environment space along the second direction, and then flows to other areas of the environment space, so that the temperature of the environment space can be rapidly relieved.

Further, because the mixed-flow air conditioner of the present invention only realizes the moderation of the air supply temperature at the air outlet of the air conditioner and the improvement of the comfort of the air conditioner through the technical solution of dividing the space in the casing into a straight-through passage, the first heat exchange air channel and the second heat exchange air channel. It has a simple structure and does not make major changes to the overall structure of the air conditioner. Compared with the existing technology, it effectively reduces the cost of the air conditioner and reduces the volume of the air conditioner.

Further, in the mixed-flow air conditioner of the present invention, since the straight-through passage directly communicates with the first air outlet, the heat-exchanged air from the first heat-exchange air channel and the unheated air from the straight-through passage can flow in the first air outlet. Mixing at the air outlet, thereby generating condensation at the first air outlet, preventing condensation from affecting the performance of the heat exchange device, fan or other components inside the air conditioner, thereby improving the performance of the mixed flow air conditioner.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural diagram of a mixed-flow air conditioner according to an embodiment of the present invention;

Fig. 2 is a schematic structural exploded view of a mixed-flow air conditioner according to an embodiment of the present invention;

Fig. 3 is a schematic cross-sectional view of a mixed-flow air conditioner according to an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a heat exchange device of a mixed-flow air conditioner according to an embodiment of the present invention;

Fig. 5 is a schematic sectional view of a mixed flow air conditioner according to another embodiment of the present invention.

detailed description

Fig. 1 is a schematic structure diagram of a mixed flow air conditioner 1 according to an embodiment of the present invention, and Fig. 2 is a schematic structural exploded view of a mixed flow air conditioner 1 according to an embodiment of the present invention. Referring to Fig. 1 and Fig. 2, the mixed flow air conditioner 1 includes a casing 10 having an air inlet 11 and an air outlet 12, the air inlet 11 is used to introduce air from the ambient space, and the air outlet 12 is used to send air back to the ambient space. Specifically, the casing 10 may include a front side panel 10a, a rear side panel 10b, side panels 10c and 10d, an upper top panel 10e and a lower bottom panel 10f, the front side panel 10a, the rear side panel 10b, and the side panels 10c, which are independent from each other. and 10d, the upper top plate 10e and the lower bottom plate 10f are assembled and connected by fixing members such as screws to form a housing 10 with an internal space. Certainly, those skilled in the art can understand that, the rear side plate 10b, the side plates 10c and 10d, the upper top plate 10e and the lower bottom plate 10f of the housing 10 can also be integrally formed to form a semi-closed housing with a concave cavity. The side plate 10 a is fixedly connected with the semi-closed casing by screws or other fixing members to form the casing 10 .

In some embodiments of the present invention, the mixed-flow air conditioner 1 can be a cabinet-type air conditioner, and its air inlet 11 can be opened on the lower front side and/or both sides of the housing 10, and the air outlet 12 can be opened on the upper front side of the housing 10. side. Specifically, the air inlet 11 may be opened at the lower part of the front side panel 10a and/or the lower parts of the side panels 10c and 10d. The air outlet 12 can be opened on the upper part of the front side panel 10a, so as to facilitate the circulation of air.

Fig. 3 is a schematic cross-sectional view of a mixed flow air conditioner 1 according to an embodiment of the present invention. Referring to FIG. 2 and FIG. 3 , the mixed-flow air conditioner 1 further includes a fan 20 and a heat exchange device 50 disposed in the casing 10 . The blower 20 is configured to encourage air to flow from the air inlet 11 toward the air outlet 12 (the direction indicated by the straight arrow in FIG. 3 is the flow direction of the air). The heat exchange device 50 has a heat exchange gap that allows air to pass through and exchange heat with it. When the air flows through the heat exchange gap of the heat exchange device 50, heat exchange occurs with the heat exchange device 50, thereby changing the temperature of the air.

In particular, the mixed flow air conditioner 1 further includes a straight passage 30 , a first heat exchange air channel 41 and a second heat exchange air channel 42 . The straight passage 30 connects the upstream of the heat exchange device 50 and the downstream of the heat exchange device 50 , so as to allow the air upstream of the heat exchange device 50 to flow directly to the downstream of the heat exchange device 50 through the straight passage 30 . That is to say, the temperature of the air flowing downstream of the heat exchanging device 50 through the straight passage 30 is not exchanged by the heat exchanging device 50 , and its temperature remains substantially unchanged. The first heat exchange air passage 41 communicates with the straight-through passage 30 and is configured to allow part of the air after heat exchange by the heat exchange device 50 to flow to the air outlet 12 through the first heat exchange air passage 41 and mix with the air from the straight-through passage 30 Then it is blown into the environment space along the first direction. The second heat exchange air channel 42 is configured to allow part of the air after heat exchange by the heat exchange device 50 to flow to the air outlet 12 through the second heat exchange air channel 42 , and blow to the environment space along the second direction. That is to say, driven by the fan 20 , part of the air flowing toward the air outlet 12 passes through the heat exchange gap of the heat exchange device 50 itself and then flows toward the air outlet 12 , while the other part of the air flows directly to the air outlet 12 through the straight passage 30 . Another part of the air passing through the heat exchanging device 50 is further divided, so that it flows to the air outlet 12 along the first heat exchanging air passage 41 and the second heat exchanging air passage 42 respectively. The heat-exchanged air flowing through the first heat-exchange air channel 41 is mixed with the non-heat-exchanged air passing through the direct passage 30, and then blown to the environment space along the first direction, thereby easing the outlet air temperature of the mixed-flow air conditioner 1 and improving The comfort of the mixed-flow air conditioner is improved. The heat-exchanged air flowing through the second heat-exchange air channel 42 is directly blown to the environment space along the second direction, and then flows to other areas of the environment space. Since the air from the second heat exchange air channel 42 is exchanged by the heat exchange device 50 , the temperature of the environment space can be quickly relieved, for example, the purpose of rapid temperature drop or rapid temperature rise can be achieved.

Furthermore, because the mixed-flow air conditioner 1 of the present invention only realizes the moderating effect of the mixed-flow air conditioner 1 at the same time only through the technical solution of dividing the space in the casing 10 into the straight-through passage 30, the first heat exchange air passage 41 and the second heat exchange air passage 42. The temperature of the air supply, the effect of improving the comfort of the air conditioner and quickly relieving the temperature of the ambient space, the structure is simple, and the overall structure of the air conditioner has not been greatly changed. Compared with the existing technology, the cost of the air conditioner is effectively reduced, and the volume of the air conditioner is reduced. .

In some embodiments of the present invention, the first direction is a direction extending obliquely downward from the air outlet 12 , and the second direction is a direction extending obliquely upward from the air outlet 12 . Generally speaking, the wind blowing obliquely downwards from the air outlet 12 is just aimed at the human body, therefore, the air supply facing the human body should be soft wind. The heat-exchanged air from the first heat-exchange air channel 41 is mixed with the unheated air from the straight-through passage 30 and then blown to the environment space in an obliquely downward direction. with comfort. The wind blowing obliquely upwards from the air outlet 12 directly blows to the upper area of the environmental space, and then flows to other areas of the environmental space, so no matter whether the wind blowing obliquely upwards is too cold or too warm, it will not affect the intuitive feeling of the human body. The heat-exchanged air from the second heat-exchange air channel 42 is directly blown to the environment space in an upward direction, which will not affect the comfort of the human body, and can quickly ease the temperature of the environment space through its own flow, making the environment The temperature of the space is more even.

Specifically, the included angle between the first direction and the horizontal plane is approximately 15-90°, and the included angle between the second direction and the horizontal plane is 15-90°. More preferably, the included angle between the first direction and the horizontal plane may be 30°, 45° or 60°. The included angle between the second direction and the horizontal plane may be 30°, 45° or 60°.

Further, referring to Fig. 1 and Fig. 3, in order to better guide the air from the air outlet 12 to blow to the environment space along the first direction and the second direction respectively, the air outlet 12 is provided with a plurality of air guide grilles, among which The air guide grid on the upper part of the air outlet 12 is inclined upward, and the air guide grid on the lower part of the air outlet 12 is inclined downward, so as to effectively guide the air flow.

In some embodiments of the present invention, the air outlet 12 may have a first air outlet 121 and a second air outlet 122 communicating with the first heat exchange air channel 41 and the second heat exchange air channel 42 respectively, the first air outlet 121 The air outlet direction of the second air outlet 122 is along the above-mentioned first direction, and the air outlet direction of the second air outlet 122 is along the above-mentioned second direction. That is to say, in order to prevent the mixed air from the first heat exchange air channel 41 and the straight passage 30 and the heat exchange air from the second heat exchange air channel 42 from mixing at the air outlet 12, the air outlet 12 is divided into the first air outlet For the air outlet 121 and the second air outlet 122 , the air outlet direction of the first air outlet 121 is inclined downward, and the air outlet direction of the second air outlet 122 is inclined upward. Specifically, the air guide grille in the upper half of the air outlet 12 may be located in the second air outlet 122 , and the air guide grid in the lower half of the air outlet 12 may be located in the first air outlet 121 .

Further, the straight passage 30 may directly communicate with the first air outlet 121 , so that the air from the straight passage 30 and the heat-exchanged air from the first heat exchange air channel 41 are mixed at the first air outlet 121 . Due to the temperature difference between the heat-exchanged air of the heat exchange device 50 and the unheated air passing through the direct passage 30, condensation is likely to occur at the mixing place of the first air outlet 121, thereby preventing condensation from occurring inside the mixed-flow air conditioner It affects the heat exchange efficiency of the heat exchange device 50 and the performance of the fan 20 or other components, thereby improving the performance of the mixed flow air conditioner 1 .

In some embodiments of the present invention, referring to FIG. 2 and FIG. 3 , the heat exchange device 50 is obliquely arranged in the housing 10 , on the one hand, it can increase the distance between the air driven by the fan 20 and the heat exchange device 50 The contact area improves the heat transfer efficiency. On the other hand, it is possible to install a relatively large-volume heat exchange device in a limited space, thereby reducing the volume of the mixed-flow air conditioner 1 to a certain extent. Specifically, the heat exchange device 50 is roughly flat to further increase the contact area between the air and the heat exchange device 50 and further improve heat exchange efficiency.

Further, there is a gap between the end of the heat exchange device 50 and the casing 10 . Specifically, in the embodiment of the present invention, there is a gap 13 between the lower end of the heat exchange device 50 and the casing, which allows air to pass through directly. That is, the gap 13 is formed between the lower end portion of the evaporator 51 and the front side plate 10 a of the casing 10 . Those skilled in the art should understand that in other embodiments of the present invention, a gap may also be formed between the upper end, left end or right end of the heat exchange device 50 and the housing 10 .

In some embodiments of the present invention, the mixed flow air conditioner 1 further includes an air deflector 60 disposed in the casing 10 . The air deflector 60 extends from the downstream of the heat exchange device 50 through the gap 13 to the first air outlet 121 . In other embodiments of the present invention, the wind deflector 60 may also directly extend from the gap 13 to the first air outlet 121 . That is to say, in some embodiments of the present invention, the air deflector 60 may be a bent plate, the lower end of which is located upstream of the heat exchange device 50 , the upper end extends to the first air outlet 121 , and the middle of the air deflector 60 Pass through the gap 13 formed between the heat exchange device 50 and the housing 10 and bend at the gap 13 . A straight passage 30 is formed between the wind deflector 60 and the casing 10 and/or the air channel wall of the fan 20 , specifically, the upper part of the wind deflector 60 and the front side plate 10a of the casing 10 form the downstream section of the straight passage 30 The upstream section of the straight passage 30 is formed between the lower part of the wind deflector 60 and the air duct wall of the fan 20, and the air inlet end of the straight passage 30 is defined between the air duct wall of the fan 20 and the lower end of the air guide plate. In other embodiments of the present invention, the air deflector can also be a flat plate, the lower end of which can be adjacent to the gap formed between the heat exchange device 50 and the housing 10 , and the upper end of which extends to the air outlet 12 . A straight-through passage 30 is formed between the wind deflector and the housing wall of the housing 10 adjacent to the wind deflector, and the air inlet end of the straight-through passage 30 is adjacent to the gap.

Further, the mixed-flow air conditioner 1 further includes a partition 70 extending from the inside of the casing 10 to the air outlet 12 , so that the first air outlet 121 and the second air outlet 122 are separated by the partition 70 . A first heat exchange air channel 41 is formed between the partition plate 70 and the air guide plate 60 , and a second heat exchange air channel 42 is formed between the partition plate 70 and the housing 10 . That is to say, the air flowing to or passing through the heat exchange device 50 is divided by the partition plate 70 so that a part of the air is located in the first heat exchange air channel 41 and another part of the air is located in the second heat exchange air channel 42 . The first heat exchange air passage 41 is adjacent to the straight-through passage 30, so that the heat-exchanged air from the first heat exchange air passage 41 and the unheated air from the straight-through passage 30 are mixed at the first air outlet 121 . Specifically, the second heat exchange air channel 42 is defined between the partition 70 and the housing wall of the housing 10 opposite to the partition 70. In the embodiment of the present invention, the shell of the housing 10 opposite to the partition 70 The body wall may be the rear side panel 10b and/or the upper top panel 10e of the casing 10 .

Fig. 4 is a schematic structural diagram of a heat exchange device of a mixed-flow air conditioner according to an embodiment of the present invention. Referring to Fig. 3 and Fig. 4, in some embodiments of the present invention, the heat exchange device 50 includes two evaporators 51 and 52 arranged in series, and a partition plate 70 is formed between the two evaporators. interval. In this embodiment, the partition plate 70 extends from the upstream of the heat exchange device 50 through the gap to the air outlet 12, so that one of the two evaporators 51 is located in the first heat exchange air channel 41, so that the two evaporators Another evaporator 52 of the two evaporators is located in the second heat exchange air channel 42 . That is to say, the air inlet ends of the first heat exchange air channel 41 and the second heat exchange air channel 42 are located upstream of the heat exchange device 50 . In other words, the air that is about to flow to the heat exchange device 50 is divided by the partition plate 70 and flows to the heat exchange device 50 through the first heat exchange air channel 41 and the second heat exchange air channel 42 respectively, and flows through the first heat exchange air channel 41 The air at the air inlet end of the second heat exchange air channel 42 is the air without heat exchange. The second heat exchange air channel 42 is jointly defined by the partition plate 70 and the rear side plate 10 b and the upper top plate 10 e of the casing 10 .

Specifically, the two evaporators 51 and 52 can be connected by a conduit 53, and each evaporator has a conduit for circulating a heat exchange medium and a plurality of heat exchange fins passing through the conduit. Further, a plurality of heat exchange fins may be arranged at intervals to form a heat exchange gap of the heat exchange device 50 between the plurality of heat exchange fins. Specifically, the conduit may include a plurality of straight evaporator tubes arranged side by side, and adjacent ends of two adjacent straight evaporator tubes are connected by a U-shaped tube. A plurality of heat exchange fins can be arranged axially along the straight tube of the evaporator. A heat exchange medium, such as refrigerant, circulates in the straight pipe of the evaporator. The heat exchange medium and the air passing through the heat exchange gap of the heat exchange device 50 can exchange heat through the heat exchange fins on the straight tube of the evaporator, thereby changing the temperature of the air.

Fig. 5 is a schematic sectional view of a mixed flow air conditioner according to another embodiment of the present invention. In some other embodiments of the present invention, the heat exchange device 50 may also include an evaporator with a heat exchange gap, and the partition plate 70 may extend from the upward side of the evaporator to the air outlet 12, so that the evaporator A part of the section is opposite to the air inlet end of the first heat exchange air passage 41 , and another part of the evaporator is opposite to the air inlet end of the second heat exchange air passage 42 . That is to say, the partition plate 70 is located above the heat exchange device 50 as a whole, and the air inlet ports of the first heat exchange air passage 41 and the second heat exchange air passage 42 are both located downstream of the heat exchange device 50 . In other words, the air flowing through the heat exchange device 50 is divided by the partition plate 70 and then flows to the first air outlet 121 and the second air outlet 122 respectively through the first heat exchange air channel 41 and the second heat exchange air channel 42 . The air passing through the air inlet ends of the first heat exchange air channel 41 and the second heat exchange air channel 42 is the air after heat exchange by the heat exchange device 50 . The second heat exchange air channel 42 is jointly defined by the partition plate 70 and the upper top plate 10 e of the casing 10 .

In some embodiments of the present invention, the partition 70 may include a first air guiding section 71 and a second air guiding section 72 adjacent to the air outlet 12 . The first wind guide section 71 is configured to extend obliquely downward, and the second air guide section 72 is configured to extend obliquely upward. The first air guide section 71 and the second air guide section 72 are bent in different directions, which can separate the first air outlet 121 and the second air outlet 122 more clearly, avoiding mixed wind and heat exchange. The wind mixed in the critical area of the first air outlet 121 and the second air outlet 122. The first air guiding section 71 extends obliquely and downwards to better guide the air from the first heat exchange air channel 41 and the straight passage 30 to flow out in the first direction through the first air outlet 121 . The second air guiding section 72 extends obliquely upwards to better guide the air from the second heat exchange air channel 42 to flow out in the second direction through the second air outlet 122 .

In some embodiments of the present invention, referring to Fig. 2 and Fig. 3, the blower fan 20 can be a volute type centrifugal fan, and its air channel 23 is configured to gradually expand along the blowing direction of the airflow, so as to increase the air outlet area of the blower blower 20 and make the blower blower The wind sent by 20 passes through the heat exchange device 50 evenly. That is to say, the outlet of the air channel 23 can extend to the lowest end of the heat exchange device 50 . Specifically, there is an air channel 23 inside the centrifugal fan for guiding the flow of air. The outlet of the air channel 23 faces the heat exchange device 50 and is arranged continuously with the heat exchange device 50 . Specifically, the volute type centrifugal fan may include an outer volute 21 and a fan 22 inside the volute 21 . The air duct 23 of the centrifugal fan is formed inside the volute 21, and the centrifugal fan can drive air to enter the air duct 23 of the centrifugal fan from the air inlet 11 of the mixed-flow air conditioner 1, and blow out after being accelerated by the fan 22.

Those skilled in the art should understand that the “upstream” and “downstream” referred to in the embodiments of the present invention refer to the air flow direction in the housing 10 .

Those skilled in the art should understand that "upper", "lower", "front", "rear", "top", "bottom", "vertical", "horizontal" and the like referred to in the embodiments of the present invention are used for The terms indicating orientation or positional relationship are based on the actual use status of the mixed-flow air conditioner. These terms are only for the convenience of describing and understanding the technical solution of the present invention, rather than indicating or implying that the referred device or view must have specific features. orientation, are constructed and operate in a particular orientation and therefore are not to be construed as limiting the invention.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. a kind of mixed flow air-conditioning, including the housing with air inlet and air outlet and is arranged in the housing Blower fan and heat-exchanger rig, it is characterised in that also include：

Through path, is configured to connect the downstream of the upstream of the heat-exchanger rig and the heat-exchanger rig, to permit The air of perhaps described heat-exchanger rig upstream directly flows to the downstream of the heat-exchanger rig by the through path；

First heat exchanging air duct, is connected with the through path, and is configured to allow for through the heat-exchanger rig heat exchange Partial air afterwards flows to the air outlet by first heat exchanging air duct, and with from the through path Air mixing after blowed to environment space in the first direction；With

Second heat exchanging air duct, is configured to allow for the partial air after the heat-exchanger rig heat exchange by described the Two heat exchanging air ducts flow to the air outlet, and are blowed to environment space in a second direction.

2. mixed flow air-conditioning according to claim 1, it is characterised in that

The first direction is the direction extended obliquely downward by the air outlet, the second direction be by institute State the direction that air outlet tilts upward extension.

3. mixed flow air-conditioning according to claim 2, it is characterised in that

The air outlet has for connecting respectively with first heat exchanging air duct and second heat exchanging air duct One air outlet and the second air outlet, the air-out direction of first air outlet along the first direction, described The air-out direction of two air outlets is along the second direction；And

The through path is directly connected with first air outlet, so that the air from the through path Mix in first air outlet with the air after the heat exchange of first heat exchanging air duct.

4. mixed flow air-conditioning according to claim 3, it is characterised in that

The heat-exchanger rig is obliquely arranged in the housing, the end of the heat-exchanger rig and the housing Between leave gap.

5. mixed flow air-conditioning according to claim 4, it is characterised in that also include：

The wind deflector being arranged in the housing, the wind deflector is by the heat-exchanger rig downstream through described Gap extends to first air outlet or directly extends to first air outlet by the gap.

6. mixed flow air-conditioning according to claim 5, it is characterised in that also include：

Dividing plate, extends to the air outlet by the inside of the housing, so that first air outlet and described Second air outlet is separated by the dividing plate；And

First heat exchanging air duct, the dividing plate and the housing is formed between the dividing plate and the wind deflector Between form second heat exchanging air duct.

7. mixed flow air-conditioning according to claim 6, it is characterised in that

The heat-exchanger rig includes two evaporimeters being arranged in series, and being formed between described two evaporimeters can For the interval that the dividing plate is extended there through；And

The dividing plate extends to the air outlet by the upstream of the heat-exchanger rig through the interval, so that institute State the one of evaporimeter in two evaporimeters to be located in first heat exchanging air duct, make described two evaporations Another evaporimeter in device is located in second heat exchanging air duct.

8. mixed flow air-conditioning according to claim 6, it is characterised in that

The heat-exchanger rig includes an evaporimeter with heat exchange gap, and the dividing plate is by the evaporimeter Side upward extends to the air outlet, so that the partial sector of the evaporimeter and the first heat exchange wind The air inlet end in road is relative, make another part section of the evaporimeter and the sky of second heat exchanging air duct Gas arrival end is relative.

9. mixed flow air-conditioning according to claim 6, it is characterised in that

The dividing plate includes the first wind-guiding section of the neighbouring air outlet and the second wind-guiding section；

The first wind-guiding section is configured to incline decurvation extension, and the second wind-guiding section is configured to incline Tiltedly bending extends upward.

10. mixed flow air-conditioning according to claim 2, it is characterised in that

The first direction is 15～90 ° with the angle of horizontal plane, the angle of the second direction and horizontal plane For 15～90 °.