CN217209590U - Outdoor unit of air conditioner - Google Patents

Abstract

The utility model discloses an outdoor unit of air-conditioner, include: a heat exchanger; the fan assembly is arranged on the front side of the heat exchanger; electrical apparatus box, electrical apparatus box set up in heat exchanger's front side and set up with fan subassembly interval, electrical apparatus box includes: the electric appliance box is provided with a diversion channel, and the radiator is arranged in the diversion channel; the baffle is arranged on the front side of the heat exchanger, an air channel cavity and an electric control cavity are respectively arranged on the two sides of the front side of the heat exchanger, the fan assembly is arranged in the air channel cavity, the electric appliance box is arranged in the electric control cavity, and first heat dissipation holes are formed in the baffle and communicated with the flow guide channel. Through setting up first louvre on the baffle to set up electrical apparatus box and first louvre relatively, when fan subassembly operation, the fan subassembly can extract the air in the electrical apparatus box through first louvre like this, thereby can dispel the heat to the electrical apparatus box through the air current of circulation, has improved the high temperature operation ability of air conditioner.

Description

Outdoor unit of air conditioner

Technical Field

The utility model belongs to the technical field of the outer machine technique of air-conditioner and specifically relates to an outer machine of air-conditioner is related to.

Background

No matter the air condensing units electrical apparatus box is transversely placed or vertically placed, the electrical apparatus box generally adopts open structure, and PCB board, components and parts inside the electrical apparatus box or a part are exposed in the air completely, or direct and external UNICOM promptly. Because the outdoor unit of the air conditioner is generally placed in an outdoor environment, small animals such as outdoor insects and geckos can penetrate into the electric appliance box, so that abnormal short circuit of the control panel is caused, and the outdoor unit cannot work.

In the related art, since a large machine type, especially a commercial machine type, generates heat due to a large operating current and is incapable of operating at a high temperature, it is necessary to perform a temperature reduction process on the electric control.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an outdoor machine of air-conditioner is through setting up first louvre on the baffle to relative electrical apparatus box and first louvre, can extract the air in the electrical apparatus box like this when the fan subassembly operation, thereby can dispel the heat to the electrical apparatus box through the air current of circulation.

According to the utility model discloses outdoor machine of air-conditioner, include: a heat exchanger; a fan assembly disposed at a front side of the heat exchanger; an electrical apparatus box, the electrical apparatus box set up in heat exchanger's front side and with fan subassembly interval sets up, the electrical apparatus box includes: the electric appliance box is provided with a flow guide channel, and the radiator is arranged in the flow guide channel; the baffle, the baffle set up in heat exchanger's front side and both sides are wind channel chamber and electric control chamber respectively, the fan subassembly sets up the wind channel intracavity, the electrical apparatus box sets up the electric control intracavity, be provided with first louvre on the baffle, first louvre with water conservancy diversion passageway intercommunication.

According to the utility model discloses outdoor machine of air-conditioner is through setting up first louvre on the baffle to set up electrical apparatus box and first louvre relatively, when fan subassembly operation like this, the fan subassembly can extract the air in the electrical apparatus box through first louvre, thereby can dispel the heat to the electrical apparatus box through the air current of circulation, has improved the high temperature operational capability of air conditioner.

According to some embodiments of the invention, the electrical box comprises: the first flow guide part is fixedly connected with the electric control plate, and the flow guide channel is formed between the first flow guide part and the electric control plate.

According to some embodiments of the invention, the first baffle comprises: the radiator comprises at least two side plates and a top plate, wherein the at least two side plates are fixed on the edge of the top plate and located on two sides of the radiator, and the side plates are fixedly connected with the electric control plate.

According to the utility model discloses a some embodiments, the roof is being provided with the breach in the one side that deviates from first louvre.

According to some embodiments of the present invention, the electrical box further comprises: the mounting panel, the mounting panel with automatically controlled board fixed connection just with baffle fixed connection.

According to some embodiments of the utility model, the outdoor unit of air-conditioner still includes: the second diversion part is arranged on one side, facing the fan assembly, of the partition plate and is opposite to the first heat dissipation holes, second heat dissipation holes are formed between the second diversion part and the partition plate, and the second heat dissipation holes are opposite to the heat radiator.

According to some embodiments of the invention, the second baffle comprises: installation department and water conservancy diversion portion, the installation department set up in the edge of water conservancy diversion portion and with baffle fixed connection, water conservancy diversion portion extend in front and back direction and with the baffle forms the second louvre.

According to some embodiments of the invention, the cross-sectional area of the flow guide portion on the horizontal plane is first constant and then decreases in the up-down direction.

According to some embodiments of the utility model, the fan subassembly includes: fan and fan, the fan with the fan transmission connect and set up in the fan deviates from one side of heat exchanger, the fan is formed with negative pressure region and positive pressure region, positive pressure region with the negative pressure region interval sets up in the front and back direction, first louvre with the negative pressure region is corresponding.

According to some embodiments of the utility model, the outdoor unit of air-conditioner still includes: the shell, heat exchanger the fan subassembly the electrical apparatus box and baffle all set up in the shell, the shell is kept away from be provided with air-inlet grille on one side curb plate of fan subassembly, the electrical apparatus box is located air-inlet grille with between the first louvre.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an outdoor unit for an air conditioner according to an embodiment of the present invention;

fig. 2 is a partial structure view showing an angle of an outdoor unit for an air conditioner according to an embodiment of the present invention;

fig. 3 is a partial schematic view of another angle of an outdoor unit of an air conditioner according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a partition, an appliance box and a second deflector according to an embodiment of the present invention;

fig. 5 is an exploded view of a baffle, appliance box and second baffle according to an embodiment of the present invention;

FIG. 6 is a partial schematic view A of FIG. 4;

fig. 7 is a plan view of an outdoor unit for an air conditioner according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a first baffle according to an embodiment of the present invention;

fig. 9 is an elevation view of a second baffle according to an embodiment of the present invention;

fig. 10 is a side view of a second baffle according to an embodiment of the invention.

Reference numerals:

100. an air conditioner outdoor unit;

10. a heat exchanger;

20. a fan assembly; 21. a fan; 22. a fan; 23. a negative pressure region; 24. a positive pressure region;

30. an electrical box; 31. an electric control board; 32. a heat sink; 33. a first flow guide member; 331. a side plate; 332. a top plate; 333. a notch; 334. installing a flanging;

40. a second flow guide member; 41. an installation part; 42. a flow guide part; 43. a second heat dissipation hole;

50. a partition plate; 51. a first heat dissipation hole; 52. wire clamps; 60. mounting a plate; 70. a housing; 71. an air intake grille; 72. An air duct cavity; 73. an electrically controlled cavity; 80. a motor bracket.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

An outdoor unit 100 for an air conditioner according to an embodiment of the present invention will be described with reference to fig. 1 to 10.

As shown in fig. 1 to 10, an outdoor unit 100 of an air conditioner according to an embodiment of the present invention includes: the fan assembly comprises a heat exchanger 10, a fan assembly 20, an electrical box 30 and a partition plate 50, wherein the fan assembly 20 is arranged at the front side of the heat exchanger 10, the electrical box 30 and the fan assembly 20 are arranged at intervals, the partition plate 50 is arranged at the front side of the heat exchanger 10, and the partition plate 50 is arranged between the electrical box 30 and the fan assembly 20. That is, the partition plate 50 is disposed between the fan assembly 20 and the electrical box 30, so that the outdoor unit 100 of the air conditioner can be divided into the air duct chamber 72 and the electrical control chamber 73 by the partition plate 50, wherein the fan assembly 20 and the heat exchanger 10 are disposed in the air duct chamber 72, and the electrical box 30 is disposed in the electrical control chamber 73, so that the fan assembly 20 and the electrical box 30 can be separated by the partition plate 50, and rainwater is prevented from splashing into the electrical box 30 when raining.

In addition, the outdoor unit 100 of the air conditioner further includes: the compressor, the compressor is set up in the baffle 50 and deviates from one side of fan subassembly 20, and the compressor still sets up in the below of electrical apparatus box 30, and this can facilitate the arrangement of electrical apparatus box 30 and compressor, and facilitate the electric connection between electrical apparatus box 30 and the compressor.

And, since the whole shape of the compressor is a circular column, the projection of the partition plate 50 on the horizontal plane is arc-shaped, so that when the compressor is fixed in the outdoor unit 100 of the air conditioner, the partition plate 50 can be fitted with the compressor, thereby facilitating the arrangement of the compressor and being beneficial to rationalizing the use of the inner space of the outdoor unit 100 of the air conditioner.

Wherein, the electrical box 30 includes: an electronic control board 31 and a heat sink 32, wherein the heat sink 32 and the electronic control board 31 are disposed adjacent to each other, so that heat generated by the electronic control board 31 can be conducted to the heat sink 32. In addition, a flow guide channel is formed in the electrical box 30, and the heat sink 32 is disposed in the flow guide channel, so that when air flows in the flow guide channel, heat of the heat sink 32 can be taken away, thereby realizing heat dissipation of the electrical control board 31.

In addition, the partition 50 is provided with a first heat radiation hole 51, and the first heat radiation hole 51 is arranged opposite to the electrical box 30. So set up, through set up first louvre 51 on baffle 50, make fan subassembly 20 operation like this, electrical apparatus box 30 has the air current to flow through under fan subassembly 20's negative pressure to take away the heat in electrical apparatus box 30 through the air current of circulation, and then realize the heat dissipation to electrical apparatus box 30. In addition, under the condition that the normal heat dissipation of the electrical box 30 is ensured, the volume of the heat sink 32 does not need to be additionally increased, and the size of the outdoor unit 100 of the air conditioner does not need to be increased.

From this, through set up first louvre 51 on baffle 50 to set up electrical apparatus box 30 and first louvre 51 relatively, when fan subassembly 20 operation like this, fan subassembly 20 can extract the air in the electrical apparatus box 30 through first louvre 51, thereby can dispel the heat to electrical apparatus box 30 through the air current of circulation, has improved the high temperature operation ability of air conditioner.

As shown in fig. 3 to 5, the electrical box 30 includes: the first flow guide member 33, the first flow guide member 33 and the electric control board 31 are fixedly connected, and a flow guide passage is formed between the first flow guide member 33 and the electric control board 31. That is, the first air guide member 33 is disposed at one side of the electric control board 31, the air guide channel is disposed between the first air guide member 33 and the electric control board 31, and the heat sink 32 is disposed in the air guide channel, so that air can be guided by the first air guide member 33, turbulence of the air at the heat sink 32 is avoided, that is, the heat dissipation effect of the electric box 30 can be increased by disposing the first air guide member 33, thereby improving the usability of the outdoor unit 100 of the air conditioner.

Specifically, the heat sink 32 includes; the heat dissipation base plate and the heat dissipation fins are arranged in a manner of being attached to the electric control plate 31, so that heat is conducted between the heat dissipation base plate and the electric control plate 31, the heat can be conducted to the heat dissipation base plate when the electric control plate 31 generates temperature, the heat is transmitted to the air through the heat dissipation fins on the heat dissipation base plate, and heat dissipation of the electric control plate 31 can be achieved.

Wherein, as shown in fig. 8, the first guide 33 includes: at least two side plates 331 and a top plate 332, at least two side plates 331 are fixed on the edge of the top plate 332 and located on two sides of the heat sink 32, and the side plates 331 are fixedly connected with the electric control board 31. That is, the first guide member 33 may be fixed to the electric control board 31, so that the structural strength of the electric box 30 may be improved. Specifically, the first baffle 33 is divided into side plates 331 and a top plate 332, wherein the side plates 331 are two, and the two side plates 331 are respectively disposed at edges of the top plate 332.

In addition, as shown in fig. 8, mounting flanges 334 are provided at the edges of the two side plates 331, a first mounting hole is provided on the mounting flanges 334, and a second mounting hole is provided on the electronic control board 31, and a fastener passes through the first mounting hole and is fixedly connected with the second mounting hole, so that the first air guide 33 can be fixed on the electronic control board 31. Specifically, the first mounting hole is a through hole, the second mounting hole is a screw hole, and the fastener is fixedly connected with the screw hole after passing through the mounting hole, so that the first flow guide part 33 and the electronic control board 31 can be fixedly connected.

And, the distance between the side plate 331 and the electronic control board 31 is slightly greater than the thickness of the heat sink 32, so that when the heat sink 32 is disposed between the electronic control board 31 and the first air guide 33, the air entering the air guide channel can be in full contact with the heat sink 32, thereby well achieving the heat dissipation efficiency of the electronic control box.

Further, as shown in fig. 6 and 8, the top plate 332 is provided with notches 333 on a side facing away from the first heat dissipation hole 51. Through setting up breach 333 in one side of roof 332, make roof 332 big at the opening that deviates from one side of first louvre 51 like this, make electrical apparatus box 30 not only can the enterprising wind of left and right sides direction like this, can also be at the enterprising wind of front and back direction to can promote electrical apparatus box 30's intake, and then can promote electrical apparatus box 30's radiating efficiency.

Similarly, referring to fig. 6, the length of the heat sink 32 is less than that of the first airflow guiding member 33, that is, one end of the heat sink 32 is exposed relative to the first airflow guiding member 33, so that the air intake of the electrical box 30 can be increased, and the heat exchange efficiency of the electrical box 30 can be improved.

Further, as shown in fig. 3, the electrical box 30 further includes: the mounting plate 60, the mounting plate 60 and the electronic control board 31 are fixedly connected, and the mounting plate 60 is also fixedly connected with the partition board 50. That is, the electrical box 30 may be fixed to the partition 50 by the mounting plate 60. Specifically, the mounting plate 60 is provided with screw through holes, and the partition plate 50 is provided with screw holes through which screws are inserted and screw-engaged with the screw holes, so that the mounting plate 60 can be fixed to the partition plate 50. And, be provided with first joint portion on the mounting panel 60, be provided with second joint portion on the automatically controlled board 31, first joint portion is one in buckle and the draw-in groove, and second joint portion is another kind in buckle and the draw-in groove, and buckle and draw-in groove joint cooperation so set up, cooperate to fix electrical apparatus box 30 at mounting panel 60 through buckle and draw-in groove and joint.

Of course, the connection between the mounting plate 60 and the partition 50, and the connection between the electronic control board 31 and the mounting plate 60 are not limited to the above-described embodiments, for example, the mounting plate 60 and the partition 50 may be engaged, and the electronic control board 31 and the mounting plate 60 may be fixedly connected by a fastener.

As shown in fig. 3 and 5, the outdoor unit 100 of the air conditioner further includes: the second air guiding member 40, the second air guiding member 40 is disposed on one side of the partition 50 facing the fan assembly 20, the second air guiding member 40 and the first heat dissipating hole 51 are disposed oppositely, a second heat dissipating hole 43 is formed between the second air guiding member 40 and the partition 50, and the second heat dissipating hole 43 and the heat sink 32 are disposed oppositely. So set up, set up second louvre 43 through the one side at baffle 50 towards fan subassembly 20 to second louvre 43 sets up towards radiator 32, is favorable to the quick flow of the air current in the water conservancy diversion passageway like this, can realize quick heat dissipation, and makes fan subassembly 20 softer when extracting the air from electrical apparatus box 30, can not produce the scheduling problem of whistling.

Also, in rainy days, since rainwater enters the outdoor unit 100 of the air conditioner, a portion of the rainwater is scattered by the impact of the fan assembly 20 so as to flow onto the partition plate 50, and the rainwater is prevented from flowing into the electrical box 30 by arranging the second heat dissipation holes 43 toward the heat sink 32, thereby causing damage to the electrical box 30.

As shown in fig. 9 and 10, the second guide member 40 includes: the installation part 41 and the flow guiding part 42, the installation part 41 is arranged at the edge of the flow guiding part 42, the installation part 41 is fixedly connected with the partition plate 50, the flow guiding part 42 extends in the front-rear direction, and the flow guiding part 42 and the partition plate 50 form a second heat dissipation hole 43. That is, the second baffle member 40 is fixedly coupled to the partition 50 by the mounting portion 41. Wherein, the mounting portion 41 is provided with a screw through hole, and the partition plate 50 is provided with a screw hole, and the fastener is fixedly connected with the screw hole after passing through the screw through hole, so that the fixed connection between the second flow guiding member 40 and the partition plate 50 can be realized. In addition, the guide part 42 extends in the front-rear direction, and thus the front side of the guide part 42 is fixedly connected with the mounting part 41 to seal the front of the guide part 42, and the second heat dissipation hole 43 is formed between the rear side of the guide part 42 and the partition 50, so that the guide effect of the second guide 40 can be achieved.

Moreover, due to the arrangement of the diversion part 42, the diversion part 42 can separate rainwater in the air duct cavity 72, and rainwater is prevented from entering the electric control cavity 73.

Further, as shown in fig. 10, the cross-sectional area of the flow guide portion 42 in the horizontal plane is first constant and then decreases in the up-down direction. So set up, because fan subassembly 20 is nearer from baffle 50 in the left and right direction, consequently need restrict the size of second guiding member 40 to avoid second guiding member 40 to influence fan subassembly 20's normal use in the left and right direction. Specifically, the cross-sectional area of the air guiding portion 42 in the up-down direction is not changed, and then the cross-sectional area at a position close to the fan assembly 20 is slowly reduced, so that the gap between the second air guiding member 40 and the fan assembly 20 can be ensured, and the aperture of the second heat dissipation hole 43 is ensured to be the largest, that is, while effectively avoiding the fan assembly 20, the influence on the air outlet of the electrical box 30 is reduced as much as possible.

Further, as shown in conjunction with fig. 2 and 7, the fan assembly 20 includes: the fan 21 and the fan 22 are in transmission connection, the fan 22 is arranged on one side, away from the heat exchanger 10, of the fan 21, the fan 22 is provided with a negative pressure area 23 and a positive pressure area 24, the positive pressure area 24 and the negative pressure area 23 are arranged at intervals in the front-back direction, and the first heat dissipation holes 51 correspond to the negative pressure area 23. That is, the air duct cavity 72 is divided into the positive pressure region 24 and the negative pressure region 23, and when looking down from the top of the outdoor unit 100 of the air conditioner, the central line of the thickness of the fan 22 is taken as a partition, one side close to the heat exchanger 10 is the negative pressure region 23, and the other side is the positive pressure region 24, so that the first heat dissipation hole 51 and the negative pressure region 23 are oppositely arranged, and because the atmospheric pressure at the negative pressure region 23 is smaller than the standard atmospheric pressure, the air in the electrical box 30 can flow to the negative pressure region 23, so that when the fan assembly 20 normally operates, the air in the electrical box 30 can be drawn into the negative pressure region 23, and thus the heat dissipation of the electrical box 30 is realized.

As shown in fig. 1 and 7, the outdoor unit 100 of the air conditioner further includes: the housing 70, the heat exchanger 10, the fan assembly 20, the electrical box 30 and the partition 50 are all disposed in the housing 70, an air inlet grille 71 is disposed on a side plate 331 of the housing 70 away from the fan assembly 20, and the electrical box 30 is disposed between the air inlet grille 71 and the first heat dissipation hole 51. That is, the housing 70 is provided with the air inlet grille 71, and air enters the outdoor unit 100 through the air inlet grille 71, exchanges heat with the heat exchanger 10, and is blown out from the air outlet by the driving of the fan assembly 20. In addition, the electrical box 30 is disposed between the first heat dissipation hole 51 and the air inlet grill 71, such that air entering the outdoor unit 100 through the air inlet grill enters the negative pressure region 23 after passing through the radiator 32, and is blown out from the air outlet by the driving of the fan assembly 20. Wherein the arrow direction in fig. 7 is the air flow direction.

Referring to fig. 2 and 8, the outdoor unit 100 of the air conditioner further includes: motor support 80, the upper end of motor support 80 is fixed at heat exchanger 10, and the middle part of motor support 80 sets up fan 21 fixed position, and fan 21 passes through fan 21 fixed position to be fixed on motor support 80, and is further, realizes the fixed of fan 21 in wind channel chamber 72.

Wherein, fan subassembly 20 can be two, is provided with two fan 21 fixed positions on the motor support 80 on the same reason, and two fan subassemblies 20 interval settings in the upper and lower direction, so, two fan subassemblies 20 are fixed respectively on two fan 21 fixed positions, can promote the gas flow who flows through heat exchanger 10 department like this to can promote heat exchanger 10's heat transfer effect.

And, as shown in fig. 6, a wire clip 52 is provided at a side of the partition plate 50 facing away from the motor assembly, and the wire clip 52 is used to clamp a wire harness, that is, the wire harness between the motor assembly and the electrical control box is fixed to the wire clip 52, and the wire harness between the compressor and the electrical control box is fixed to the wire clip 52, so that the integrity and safety of the outdoor unit 100 of the air conditioner can be improved.

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.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An outdoor unit for an air conditioner, comprising:

a heat exchanger;

a fan assembly disposed at a front side of the heat exchanger;

an electrical box, the electrical box set up in heat exchanger's front side and with fan subassembly interval sets up, the electrical box includes: the electric appliance box is provided with a flow guide channel, and the radiator is arranged in the flow guide channel;

the baffle, the baffle set up in heat exchanger's front side and both sides are wind channel chamber and electric control chamber respectively, the fan subassembly sets up the wind channel intracavity, the electrical apparatus box sets up the electric control intracavity, be provided with first louvre on the baffle, first louvre with water conservancy diversion passageway intercommunication.

2. The outdoor unit of claim 1, wherein the electric box comprises: the first flow guide part is fixedly connected with the electric control plate, and the flow guide channel is formed between the first flow guide part and the electric control plate.

3. The outdoor unit of claim 2, wherein the first guide member comprises: the radiator comprises at least two side plates and a top plate, wherein the at least two side plates are fixed at the edge of the top plate and located on two sides of the radiator, and the side plates are fixedly connected with the electric control plate.

4. The outdoor unit of claim 3, wherein the top plate is provided with a notch at a side facing away from the first heat dissipation hole.

5. The outdoor unit of claim 2, wherein the electric box further comprises: the mounting panel, the mounting panel with automatically controlled board fixed connection just with baffle fixed connection.

6. The outdoor unit of claim 1, further comprising: the second diversion part is arranged on one side, facing the fan assembly, of the partition plate and is opposite to the first heat dissipation holes, second heat dissipation holes are formed between the second diversion part and the partition plate, and the second heat dissipation holes are opposite to the heat radiator.

7. The outdoor unit of claim 6, wherein the second guide member comprises: installation department and water conservancy diversion portion, the installation department set up in the edge of water conservancy diversion portion and with baffle fixed connection, water conservancy diversion portion extend in the front and back direction and with the baffle forms the second louvre.

8. The outdoor unit of claim 7, wherein the cross-sectional area of the air guide portion in the horizontal plane is constant and then decreases in the vertical direction.

9. The outdoor unit of claim 1, wherein the fan assembly comprises: fan and fan, the fan with the fan transmission connect and set up in the fan deviates from one side of heat exchanger, the fan is formed with negative pressure region and positive pressure region, positive pressure region with the negative pressure region interval sets up in the front and back direction, first louvre with the negative pressure region is corresponding.

10. The outdoor unit of claim 1, further comprising: the shell, heat exchanger the fan subassembly the electrical apparatus box and baffle all set up in the shell, the shell is kept away from be provided with air-inlet grille on one side curb plate of fan subassembly, the electrical apparatus box is located air-inlet grille with between the first louvre.

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