CN219415017U - Air conditioner outdoor unit - Google Patents

Abstract

The air conditioner outdoor unit comprises a shell and a cavity partition board positioned in the cavity of the shell, wherein the cavity partition board divides the cavity of the shell into a fan cavity and a compressor cavity, and an outdoor heat exchange fan is arranged in the fan cavity; an electric box is arranged at the top of the cavity partition plate, an electric box air outlet positioned in the fan cavity is arranged on the electric box, and an electric box supporting piece connected with the electric box is arranged on one side of the electric box air outlet; the fan rod fixing piece is positioned in the fan cavity, the bottom of the fan rod fixing piece is provided with a bearing plate, and the bottom of the electric box supporting piece is placed on the bearing plate; a heat radiation opening is formed on the electric box supporting piece, a waterproof plate is arranged on one side of the heat radiation opening, which is close to the outdoor heat exchange fan, and a heat radiation gap is formed between the waterproof plate and the bearing plate; the waterproof plate comprises a shielding part perpendicular to the bearing plate and a buffer part extending along the shielding part towards the direction close to the outdoor heat exchange fan; the shielding part is used for shielding moisture separated from the heat exchange fan due to centrifugal effect, and the buffer part limits the movement of the moisture towards the heat dissipation opening. The scheme can prevent the electric box from water inflow, and the electric box has good heat dissipation.

Description

Air conditioner outdoor unit

Technical Field

The utility model belongs to the technical field of air conditioners, and particularly relates to an air conditioner outdoor unit.

Background

The electronic components play a key role in the control circuit of the outdoor unit of the air conditioner, and are accommodated in the electrical box. When the outdoor air conditioner operates, current flows in the electronic device and generates heat, and an air inlet and an air outlet are arranged on the electric box so that the interior of the electric box cavity can be well ventilated, and therefore the heat dissipation effect of the electric box cavity is ensured.

In order to strengthen the heat dissipation effect of the electric box cavity, the electric box cavity is used as a part of a heat exchange air duct in the outdoor air conditioner in the prior art, so that along with the operation of a heat exchange fan, air can flow in the electric box cavity and exchange heat with electronic devices in a convection mode, and the air carrying the heat can flow out from an air outlet on the electric box so as to achieve the heat dissipation effect of the electric box.

In the prior art, a partition board is arranged in an air conditioner outdoor unit to divide a shell cavity of the outdoor unit into a fan cavity for placing a heat exchange fan and a compressor cavity for placing a compressor, and an electric box is positioned at the top of the partition board; the bottom of the electric box is only supported by the partition plate, so that the electric box is more stable to install, a part for supporting the electric box is arranged on one side of an air outlet of the electric box, and a heat dissipation opening communicated with a cavity of the electric box is formed in the part for guaranteeing heat dissipation of the electric box.

However, in the prior art, the heat dissipation port and the rotation direction of the heat exchange fan are opposite, so when the heat exchange fan is operated, if moisture exists on the heat exchange fan, the moisture moves towards the heat dissipation port under the centrifugal action and enters the electric box cavity through the heat dissipation port, and damage to the electronic device is caused.

Disclosure of Invention

The utility model provides an aim at provides an tuber pipe machine for from the heat exchange fan on can not get into electrical apparatus box chamber because the moisture that centrifugal effect breaks away from when outdoor heat exchange fan is operated.

The purpose of the application is to provide an air duct machine which achieves the purpose and keeps good ventilation and heat dissipation of an electric box cavity.

According to some embodiments of the present application, an air duct machine includes a housing having a housing cavity and a heat exchanging air duct formed therein.

According to some embodiments of the present application, the interior of the housing cavity is provided with a cavity divider dividing the housing cavity into a fan cavity and a compressor cavity.

According to some embodiments of the present application, an outdoor heat exchange fan is disposed inside the fan cavity, and the outdoor heat exchange fan is configured to drive the flow of air in the heat exchange air duct.

According to some embodiments of the present application, an electrical box is placed on top of the cavity partition, the cavity partition divides the electrical box into a portion located in the fan cavity and a portion located in the compressor cavity, and an electrical box cavity is formed inside the electrical box.

According to some embodiments of the present application, the outdoor heat exchange fan further comprises a fan rod, wherein the fan rod is used for fixing the outdoor heat exchange fan;

according to some embodiments of the present application, the fan comprises a fan rod fixing piece, wherein the fan rod fixing piece is connected to the top of the fan rod and located in the fan cavity, and a bearing plate is arranged at the bottom of the fan rod fixing piece.

According to some embodiments of the present application, the electric appliance box comprises a bearing plate, a heat dissipation plate and a heat dissipation opening formed on the heat dissipation plate, wherein the bearing plate is arranged on the bearing plate and is connected to the electric appliance box so as to support the electric appliance box, the heat dissipation plate is arranged on the electric appliance box support, and the fan cavity is communicated with the electric appliance box cavity through the heat dissipation opening.

According to some embodiments of the present application, the electrical box comprises a top cover and a bottom cover, wherein the top cover is configured as a top cover of the electrical box and is arranged on the top of the electrical box and the top of the electrical box support, so as to cover the electrical box and the electrical box support.

According to some embodiments of the application, the electric box further comprises a waterproof plate, wherein the waterproof plate is formed by extending downwards along one end of the cover plate and is positioned on one side of the heat dissipation port away from the electric box.

According to some embodiments of the present application, the waterproof board has a shielding portion and a buffer portion extending along a bottom edge of the shielding portion in a direction away from the heat radiation port, the shielding portion being perpendicular to the buffer portion;

according to some embodiments of the application, the shielding part is used for shielding moisture detached from the heat exchange fan due to centrifugal effect.

According to some embodiments of the application, the buffer portion is configured to limit movement of moisture detached from the heat exchange fan due to centrifugal action toward the heat dissipation port.

According to some embodiments of the present application, a heat dissipation gap is formed between the waterproof board and the bearing board, the electrical box cavity is communicated with the fan cavity through the heat dissipation gap, and heat generated from the electrical box cavity flows into the fan cavity through the heat dissipation gap.

According to some embodiments of the application, the shielding part is parallel to the heat dissipation plate, and a projection of the shielding part on the heat dissipation plate covers the heat dissipation opening.

According to some embodiments of the present application, the electrical box includes a first wall located in the compressor chamber, a second wall perpendicular to the first wall, and a third wall perpendicular to the second wall and located in the fan chamber, and the second wall includes a portion located in the compressor chamber and a portion located in the fan chamber.

According to some embodiments of the present application, a first electrical box air inlet is formed in the first wall, a second electrical box air inlet located in the compressor cavity is formed in the second wall, an electrical box air outlet is formed in the third wall, and the electrical box cavity is communicated with the compressor cavity through the first electrical box air inlet and the second electrical box air inlet.

According to some embodiments of the application, the electrical box support member is provided with an air outlet cavity, and the air outlet cavity is communicated with the electrical box cavity through an air outlet of the electrical box.

According to some embodiments of the present application, the fan bar fixing member further includes guard plates disposed at both sides of the bearing plate, a heat dissipation channel is formed between the guard plates and the bearing plate, and heat generated from the electrical box cavity flows into the fan cavity through the heat dissipation channel.

According to some embodiments of the application, the bottom of the electrical box support is placed on the carrier plate such that a portion of the weight of the electrical box is dispersed on the carrier plate by the electrical box support connected to the electrical box.

According to some embodiments of the present application, a tail plate is formed on the cover plate along an end opposite to the waterproof plate, and a tail plate grid is formed on the tail plate, and the tail plate grid is located at the air inlet of the first electrical box.

According to some embodiments of the application, the housing comprises a first side shell positioned at one side of the housing, a heat exchange air inlet is formed on the first side shell, and the compressor cavity is communicated with the outdoor through the heat exchange air inlet.

In this application, the waterproof board prevents effectively that the moisture that breaks away from heat transfer fan from getting into the thermovent, and wherein buffer portion provides waterproof buffer for the thermovent, has restricted the removal of moisture towards the thermovent, and the shelter from the portion and stop the moisture that removes towards the thermovent and continue to remove.

In this application, the width of heat dissipation seam is less, can prevent effectively that insect, gecko etc. from getting into electrical apparatus box.

In this application, the total area of thermovent is big, and electrical apparatus box chamber forms as the part in heat exchange wind channel, can provide good ventilation radiating effect for electrical apparatus box.

Description of the drawings:

the present utility model will be further described with reference to the accompanying drawings, in which:

fig. 1 is a perspective view of an air conditioner outdoor unit according to an embodiment of the present application.

Fig. 2 is a schematic view of an air conditioner outdoor unit according to an embodiment of the present application after the front casing is removed.

Fig. 3 is a schematic view of a housing portion of an electrical box of an embodiment of the present application.

Fig. 4 is a schematic view of an electrical box support of an embodiment of the present application.

FIG. 5 is a schematic view of a fan bar mount according to an embodiment of the present application.

FIG. 6 is a schematic view of another angle of a fan bar mount according to an embodiment of the present application.

Fig. 7 is a schematic diagram of an air duct structure (arrows indicate air flow direction) according to an embodiment of the present application.

Fig. 8 is an internal configuration diagram of an air conditioner outdoor unit according to an embodiment of the present application (an arrow indicates a movement direction of moisture separated from a heat exchange fan).

Fig. 9 is a perspective view of a cover plate of an embodiment of the present application.

Fig. 10 is a schematic view of a cover plate of an embodiment of the present application assembled to the top of an electrical box.

FIG. 11 is a partial cross-sectional view (partial cross-section of a fan bar mount) of an embodiment of the present application.

Fig. 12 is an enlarged view of a portion a in fig. 11.

Fig. 13 is another partial cross-sectional view of an embodiment of the present application.

Fig. 14 is an enlarged view of a portion B in fig. 13.

Fig. 15 is a schematic flow diagram of air in a heat exchange air duct.

Reference numerals:

1, an air conditioner outdoor unit;

100 shells, 110 front shells, 120 first side shells, 130 second side shells, 140 top shells, 150 cavity partition boards, 160 fan cavities and 170 compressor cavities;

200 electric appliance boxes, 210 first walls, 211 first electric appliance box air inlets, 220 second walls, 221 second electric appliance box air inlets, 230 third walls, 231 electric appliance box air outlets, 240 cover plates, 241 main body plates, 242 side connection plates, 243 tail plates, 243a tail plate grids, 244 waterproof plates, 244a shielding parts, 244b buffering parts and 250 electric appliance box cavities;

300 electric box supporting pieces, 310 supporting side plates, 320 radiating plates, 330 supporting bottom plates, 340 radiating ports, 350 radiating grids, 360 air outlet cavities and 370 radiating gaps;

400 outdoor heat exchange fans, 410 fan bars, 420 fan bar fixing pieces, 421 bearing plates, 422 guard plates, 422a first guard plates, 422b second guard plates, 430 heat dissipation channels, 440 connecting plates and 441 limiting clamping plates.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second" or the like may include one or more such features, either explicitly or implicitly. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the present application, the air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator may achieve a cooling effect by exchanging heat with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner may adjust the temperature of the indoor space throughout the cycle.

The air conditioner includes an air conditioner indoor unit and an air conditioner outdoor unit 1, the air conditioner outdoor unit 1 refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the air conditioner indoor unit includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater of a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler of a cooling mode.

As shown in fig. 1 to 15, according to some embodiments of the present application, an air conditioner includes an air conditioner outdoor unit 1, the air conditioner outdoor unit 1 includes a casing 100, the casing 100 is in a cube shape, and includes a front casing 110 and a rear casing that are disposed opposite to each other, in the embodiment of the present application, the front casing 110 is a side far from a user house, and the rear casing is a side close to the user house.

The housing 100 further includes first and second side cases 120 and 130 disposed opposite to each other, the first and second side cases 120 and 130 being located between the front and rear cases 110 and 130, and the housing 100 includes a top case 140 located at the top of the housing 100 and a base located at the bottom of the housing 100.

A heat exchange air outlet is formed in the front case 110, and an air outlet grille is provided at the air outlet, which defines the appearance of the air outlet, and also prevents objects such as leaves in the environment from entering the interior of the case 100.

A heat exchange air inlet is provided on the second side case 130, and the appearance of the heat exchange air inlet is defined by an air inlet grille provided at the heat exchange air inlet.

A base flange is formed upwardly along the peripheral edge of the base body such that an alcove is defined between the base body and the base flange for placement of other components.

The front shell 110, the rear shell, the first side shell 120, the second side shell 130, the top shell 140 and the base enclose a shell cavity, and the shell cavity is communicated with a heat exchange air outlet; the housing chamber may house other components of the air conditioner outdoor unit 1, such as an outdoor heat exchanger, an outdoor heat exchange fan 400, a compressor, and the like.

A cavity divider 150 is disposed in the housing cavity, the cavity divider 150 dividing the housing cavity into a blower cavity in which the outdoor heat exchange blower 400 is disposed and a compressor cavity in which the compressor and associated piping are disposed.

The outdoor heat exchange fan 400 located in the fan cavity is fixedly connected to the fan rod 410, the fan rod 410 is located in the fan cavity and located at the rear of the outdoor heat exchange fan 400, the bottom of the fan rod 410 is connected to the base of the casing 100, in order to further fix the fan rod 410 to enable the outdoor heat exchange fan 400 to be more stable in the running process, a fan rod fixing piece 420 is further arranged at the top of the fan rod 410, and the fan rod fixing piece 420 is located at the top of the fan cavity and located above the outdoor heat exchange fan 400 and provided with a bearing plate 421 to bear other components.

The bottom of the cavity spacer 150 is connected to the base, however, the top of the cavity spacer 150 does not reach the height of the bottom of the top case 140, and thus a space is formed between the top of the cavity spacer 150 and the bottom of the top case 140 to provide the electrical box 200 at this position, and the height of the electrical box 200 in the housing cavity is approximately the same as the height of the fan bar fixture 420 in the fan cavity.

The electrical box 200 is placed on top of the cavity partition 150 and supported by the cavity partition 150, and thus, the cavity partition 150 divides the electrical box 200 into a portion located in the fan chamber and a portion located in the compressor chamber.

As described above, since the electrical box 200 is placed on top of the cavity spacer 150, since the cavity spacer 150 is a thin member, the area of the portion of the cavity spacer 150 supporting the electrical box 200 is small, and thus there is a problem that the electrical box 200 is not stably placed, in order to solve this problem, the electrical box support 300 is further provided on one side of the electrical box 200, the electrical box support 300 is placed on the bearing plate 421 of the fan bar 410 support, and after the electrical box 200 is connected with the electrical box support 300, a portion of the weight of the electrical box 200 is loaded by the bearing plate 421 through the electrical box support 300, and the electrical box support 300 placed on the bearing plate 421 may serve as another pivot of the electrical box 200 to further enhance the installation stability of the electrical box 200 in the air conditioner outdoor unit 1.

< wind channel in housing Cavity > wind flow direction

The refrigerant flowing through the outdoor heat exchanger needs to exchange heat with the outdoor air in the outdoor air conditioner, and thus the outdoor air has a flowing passage in the air conditioner outdoor unit, and the electrical box 200 is a part of the passage.

The heat exchange air inlet is communicated with a compressor cavity, the compressor cavity is communicated with the inside of the electric box 200 (namely the electric box cavity 250) through a first electric box air inlet 211 and a second electric box air inlet 221 which are arranged on the electric box 200, and an electric box air outlet 231 is also arranged on the electric box 200; wherein, the first electric box air inlet 211 and the second electric box air inlet 221 are positioned in the compressor cavity, and the electric box air outlet 231 is positioned in the fan cavity; the electrical box cavity 250 is communicated with the fan cavity through the electrical box air outlet 231, and the fan cavity is communicated with the heat exchange air outlet.

Therefore, when the outdoor heat exchange fan 400 is operated, a negative pressure area is formed in the fan cavity, outdoor air enters the compressor cavity from the heat exchange air inlet under the action of atmospheric pressure, enters the electric box cavity 250 through the first electric box air inlet 211 and the second electric box air inlet 221, then enters the fan cavity through the electric box air outlet 231, exchanges heat with the outdoor heat exchanger in the fan cavity, and flows outdoors from the heat exchange air outlet.

The electrical box 200 is used as a part of the air duct to facilitate transferring heat generated from the electronic components disposed in the electrical box 200 out of the electrical box 200 by convection of wind during operation of the air conditioner, thereby preventing the heat from being accumulated in the electrical box 200 to damage the electronic components.

< Electrical box 200>

The electric box 200 is installed with a plurality of electronic circuits for controlling the operation of the outdoor unit 1 of the air conditioner, and includes a first wall 210 disposed in parallel with the second side case 130, a second wall 220 disposed in parallel with the front case 110, a third wall 230 disposed opposite to the first wall 210 at one side of the second wall 220, and a fourth wall disposed in parallel with the rear case, and the electric box 200 further includes a bottom wall for mounting a circuit board and a cover plate 240 disposed at the top of the electric box 200.

Wherein the bottom wall is placed on a cavity divider 150, the cavity divider 150 dividing the bottom wall into a portion located in the compressor cavity and a portion located in the fan cavity.

The first wall 210 is located in the compressor chamber, and a first electrical box air inlet 211 is formed thereon, the first electrical box air inlet 211 is located in the compressor chamber, and the electrical box chamber 250 is communicated with the compressor chamber through the first electrical box air inlet 211.

The second wall 220 also includes a portion located in the compressor compartment and a portion located in the fan compartment, on which a second electrical box air inlet 221 is provided, the second electrical box air inlet 221 being located in the compressor compartment and the electrical box compartment 250 being in communication with the compressor compartment through the second electrical box air inlet 221.

The third wall 230 is located in the fan chamber, and has an electrical box air outlet 231 provided thereon, and the electrical box chamber 250 is in communication with the fan chamber through the electrical box air outlet 231.

< Electrical box support 300>

The electrical box support 300 is located in the fan chamber and is disposed at one side of the electrical box outlet 231 and is connected to the third wall 230.

The electrical box supporter 300 includes a heat dissipation plate 320, a support base 330, and two support side plates 310 disposed opposite to each other.

The supporting bottom plate 330 is placed on the bearing plate 421, a bottom plate flanging structure vertical to the supporting bottom plate 330 is formed downwards along the edge of the supporting bottom plate 330, a clamping hole is formed on the bottom plate flanging structure, a clamping column is arranged at a corresponding position of the third wall 230, and the supporting bottom plate 330 is connected with the third wall 230 through the clamping hole arranged on the bottom plate flanging structure and the clamping column arranged on the third wall 230.

A side plate flanging structure perpendicular to the supporting side plate is formed along an edge of one end of the supporting side plate 310 toward the outside of the electrical box supporting member 300, a clamping hole is formed on the side plate flanging structure, and a clamping column is formed on a corresponding position of the third wall 230, and the supporting side plate 310 is connected with the third wall 230 through the clamping of the clamping hole arranged on the side plate flanging structure and the clamping column arranged on the third wall 230.

The heat dissipation plate 320 is disposed opposite to the third wall 230, and a heat dissipation opening 340 is formed on the heat dissipation plate 320 to dissipate heat in the electrical box cavity 250, and an external appearance of the heat dissipation opening 340 is defined by a heat dissipation grill 350.

An air outlet chamber 360 of the electrical box supporter 300 is formed between the heat radiating plate 320 and the third wall 230.

The air outlet cavity 360 communicates with the electrical box cavity 250 through the electrical box air outlet 231, and the electrical box cavity 250 communicates with the fan cavity through the heat dissipation port 340, so that air entering the electrical box cavity 250 from outside enters the air outlet cavity 360 through the electrical box air outlet 231 and then enters the fan cavity through the heat dissipation port 340.

< blower rod fixing part 420>

The fan bar fixing member 420 is located in the fan chamber above the outdoor heat exchange fan 400 and at one side of the electrical box 200.

The fan bar fixing member 420 includes a carrying plate 421 and guard plates 422 disposed on two sides of the carrying plate 421.

The guard plate 422 includes a first guard plate 422a located at one side of the bearing plate 421 and a second guard plate 422b located at the other side of the bearing plate, and a heat dissipation channel 430 is formed between the guard plate 422 and the bearing plate 421, where the heat dissipation channel 430 is a part of a heat exchange air duct in the outdoor unit.

In addition, a connection plate 440 is provided at the top end of the guard plate 422 near the outdoor heat exchanger, screw holes are provided on the connection plate 440 to be fixedly connected with the fan pole 410 through screws, a limit clamping plate 441 is further provided on the connection plate 440, and the limit clamping plate 441 can be clamped on the outdoor heat exchanger to facilitate installation and fixing of the fan pole fixing member 420.

< cover plate 240>

The cover plate 240 is disposed on top of the electrical box 200 and the electrical box supporter 300 to protect the original inside the electrical box 200.

The cover plate 240 includes a main body plate 241 formed as a main body portion of the cover plate 240, side plates 242 provided at opposite sides of the main body plate 241 and connected to the second wall 220 and the fourth wall of the electrical box 200, a tail plate 243 provided at one end of the main body plate 241 corresponding to the first air inlet, and a waterproof plate 244 provided at the other end of the main body plate 241 corresponding to the heat dissipation port 340.

Screw holes are provided on the side plates 242 to connect the side plates 242 with the second wall 220 and the fourth wall by screws.

The tailboard 243 is disposed at a first air inlet, and a tailboard grill 243a is formed on the tailboard 243, and an external appearance of the first air inlet is defined by the tailboard grill 243 a.

As shown in fig. 8, in rainy weather, rainwater is inevitably wetting the blades of the heat exchange fan, or when there is condensation on the heat exchange fan, as the outdoor heat exchange fan 400 is operated, moisture on the blades of the heat exchange fan is separated from the heat exchange fan due to the centrifugal effect of the rotation of the heat exchange fan, and the electrical box cavity 250 is located on the movement path of the moisture separated from the heat exchange fan.

In the prior art, the top of the electric box 200 and the top of the electric box supporter 300 are covered by the main body plate 241, so that moisture separated from the heat exchange fan cannot enter the electric box 200 from the top of the electric box 200 or the top of the electric box supporter 300, however, the heat dissipation plate 320 is positioned on a passage of the air conditioner outdoor unit and the heat dissipation opening 340 has no cover so that moisture partially separated from the heat exchange fan enters the air outlet cavity 360 from the heat dissipation opening 340 and then enters the electric box cavity 250 through the electric box air outlet 231, causing damage to the electronic components in the electric box cavity 250.

< waterproof sheet 244>

Therefore, in order to prevent moisture escaping from the heat exchange fan from entering the heat dissipation port 340 and thus the electrical box cavity 250, a waterproof plate 244 is further provided on the cover plate 240, and the waterproof plate 244 is positioned at one side of the heat dissipation port 340 to block the moisture escaping from the heat exchange fan.

The waterproof plate 244 includes a shielding portion 244a parallel to the heat dissipation plate 320 and disposed with respect to the heat dissipation plate 320, and a buffer portion 244b extending along a bottom edge of the shielding portion 244a in a direction away from the heat dissipation plate 320 and perpendicular to the shielding portion 244a, and a reinforcing rib is disposed between the shielding portion 244a and the buffer portion 244b to enhance structural stability of the waterproof plate 244.

The shielding portion 244a serves to shield moisture detached from the fan, and the buffer portion 244b further enhances the waterproof effect of the waterproof plate 244 by providing a waterproof buffer area.

< structural comparison of waterproof sheet 244 with radiating plate 320 >

The shielding portion 244a of the waterproof plate 244 is formed to extend along one end of the main body plate 241 in a direction approaching the bearing plate 421 and perpendicular to the bearing plate 421, and in order not to inhibit the effect of outdoor air passing through the electric box cavity 250 and flowing out of the heat dissipation port 340 to be ventilated and dissipated when the indoor heat exchange fan is operated, a distance is reserved between the bottom of the waterproof plate 244 and the bearing plate 421, so that air circulates in the air duct in the air conditioner outdoor unit 1 relatively smoothly, and for convenience of description, the distance is referred to as a first distance.

The heat dissipation port 340 is located on the heat dissipation plate 320, and a distance is also between the bottom of the heat dissipation port 340 and the carrier 421, and this distance is referred to as a second distance for convenience of description.

The first distance is smaller than the second distance, and thus, the projection of the waterproof plate 244 on the heat dissipation plate 320 covers the heat dissipation port 340 in the vertical direction to obtain a better waterproof effect.

As shown in fig. 12 to 14, the projection of the waterproof plate 244 on the heat dissipating plate 320 also covers the heat dissipating opening 340 in the left-right direction, and therefore, the heat dissipating opening 340 is not exposed to the movement path of the moisture separated from the heat exchanging fan, and thus, the heat dissipating opening 340 can be covered by the waterproof plate 244 in both the left-right direction and the vertical direction, achieving a good waterproof effect.

The buffer portion 244b of the waterproof board 244 provides a buffer for moisture entering the heat dissipation area, and further enhances the isolation effect of the waterproof board 244 on moisture; the buffer portion 244b serves as a handle for removing or installing the cover plate 240, and facilitates the installation and removal of the cover plate 240 on the electrical box 200.

< Heat dissipation Port 340>

The heat dissipation port 340 is located on the heat dissipation plate 320, the heat dissipation port 340 is defined by a heat dissipation grille 350, the heat dissipation grille 350 is composed of a plurality of heat dissipation slits, and wind released from the air outlet 231 of the electrical box can be released into the fan cavity from the heat dissipation slits.

In some embodiments of the present application, the number of heat dissipation slits is 18, the length of the heat dissipation slits is 42mm, and the width of the heat dissipation slits is 2mm, so that the total area of the heat dissipation openings 340 on the heat dissipation plate 320 is 18 mm 42mm 2 mm=1512 mm ² 。

The width of the heat dissipation slit is 2mm, and the small-sized heat dissipation slit can prevent animals such as gecko from entering the electrical box 200 through the heat dissipation opening 340.

According to the inventive concept of the present application, the waterproof plate 244 is designed to extend downward at one end of the cover plate 240 to prevent the heat dissipation port 340 from being located on a movement path of moisture separated from the heat exchange fan, so that the problem that moisture enters the electrical box 200 from the heat dissipation port 340 can be effectively solved, and the waterproof plate 244 has a simple structure and is convenient for production and manufacturing.

< flow direction of wind released from Heat radiation Port >

As shown in fig. 15, the dashed arrow in the figure indicates the flow direction of the air flowing out from the heat radiation port. An assembly gap is provided between the waterproof plate 244 and the first and second guard plates 422a and 422b to facilitate the installation of the cover plate 240, and air flowing out of the electrical box chamber 250 passes through the air outlet chamber 360 and then out of the heat dissipation port 340 to flow into the heat dissipation channel 430 through the heat dissipation gap 370 and the assembly gap.

According to the utility model conception of this application, the waterproof board prevents effectively that the moisture that breaks away from heat transfer fan from getting into the thermovent, and wherein buffer portion provides waterproof buffer area for the thermovent, has restricted the removal of moisture towards the thermovent, and the shelter from the portion and stop the moisture that removes towards the thermovent and continue the removal.

According to the inventive concept of the present application, the width of the heat dissipation slit is smaller, so that insects, geckos and the like can be effectively prevented from entering the electrical box.

According to the inventive concept of the application, the total area of the heat dissipation opening is large, and a good ventilation and heat dissipation effect can be provided for the electric box.

Claims (9)

1. An outdoor unit of an air conditioner, comprising

The shell is internally provided with a shell cavity and a heat exchange air duct;

the cavity partition plate divides the shell cavity into a fan cavity and a compressor cavity;

the heat exchange fan is positioned in the fan cavity and used for driving air to flow in the heat exchange air duct;

the bottom of the electric box is arranged at the top of the cavity partition board, the cavity partition board divides the electric box into a part positioned in the fan cavity and a part positioned in the compressor cavity, and an electric box cavity is formed in the electric box;

the fan rod fixing piece is positioned in the fan cavity, and a bearing plate is arranged at the bottom of the fan rod fixing piece;

the electric box supporting piece is arranged on the bearing plate and connected with the electric box to support the electric box, a heat dissipation plate and a heat dissipation opening formed on the heat dissipation plate are arranged on the electric box supporting piece, and the fan cavity is communicated with the electric box cavity through the heat dissipation opening;

the cover plate is configured as a top cover of the electric appliance box and is arranged at the top of the electric appliance box and the top of the electric appliance box supporting piece and used for covering the electric appliance box and the electric appliance box supporting piece;

the waterproof plate is formed by extending downwards along one end of the cover plate and is positioned at one side of the heat dissipation port far away from the electrical box, the waterproof plate is provided with a shielding part and a buffer part extending along the bottom edge of the shielding part in a direction far away from the heat dissipation port, and the shielding part is perpendicular to the buffer part;

the shielding part is used for shielding moisture separated from the heat exchange fan due to centrifugal action;

the buffer part limits the water separated from the heat exchange fan due to centrifugal effect to move towards the heat radiation port;

and the heat dissipation gap is formed between the waterproof plate and the bearing plate, the electric box cavity is communicated with the fan cavity through the heat dissipation gap, and heat generated from the electric box cavity flows into the fan cavity through the heat dissipation gap.

2. The outdoor unit of claim 1, wherein the shielding portion is parallel to the heat dissipation plate, and a projection of the shielding portion on the heat dissipation plate covers the heat dissipation opening.

3. The outdoor unit of claim 1, wherein the electrical box includes a first wall disposed in the compressor chamber, a second wall perpendicular to the first wall, and a third wall perpendicular to the second wall and disposed in the fan chamber, the second wall including a portion disposed in the compressor chamber and a portion disposed in the fan chamber.

4. The outdoor unit of claim 3, wherein the first wall has a first electrical box inlet formed therein, the second wall has a second electrical box inlet formed therein and positioned in the compressor chamber, and the third wall has an electrical box outlet formed therein, the electrical box chamber being in communication with the compressor chamber through the first electrical box inlet and the second electrical box inlet.

5. The outdoor unit of claim 4, wherein the electrical box supporter has an air outlet chamber formed thereon, and the air outlet chamber is communicated with the electrical box chamber through the electrical box air outlet.

6. The outdoor unit of claim 1, wherein the fan bar fixing member further comprises guard plates provided at both sides of the bearing plate, a heat dissipation passage is formed between the guard plates and the bearing plate, and heat generated from the electric box chamber flows into the fan chamber through the heat dissipation passage.

7. The outdoor unit of claim 6, wherein the bottom of the electric box supporter is placed on the bearing plate such that a part of the weight of the electric box is dispersed on the bearing plate by the electric box supporter connected to the electric box.

8. The outdoor unit of claim 4, wherein a louver is formed on the cover plate along an end opposite to the waterproof plate, and a louver grill is formed on the louver, the louver grill being located at the first box air inlet.

9. The outdoor unit of claim 8, wherein the housing comprises a first side case at one side of the housing, wherein the first side case has a heat exchanging air inlet formed thereon, and wherein the compressor chamber is in communication with the outside through the heat exchanging air inlet.