CN214619849U - Air conditioner outdoor unit and air conditioner - Google Patents

Abstract

The utility model relates to an air condensing units and air conditioner for alleviate the poor problem of radiating effect. Wherein, air condensing units includes: a housing provided with a first tuyere; the first plate is arranged in the shell and divides the shell into a first cavity and a second cavity, and the first plate is provided with a second air port communicated with the first cavity and the second cavity; the fan is arranged in the first cavity; the guide plate is arranged in the second cavity and positioned above the first air port, and the guide plate extends towards the top of the second cavity in an inclined mode; the fan is configured to provide wind pressure to enable the first air opening to be supplied with wind, the guide plate is configured to guide the wind introduced by the first air opening to the top of the second cavity for heat exchange, and the second air opening is configured to guide part of the wind subjected to heat exchange to the first cavity. The utility model discloses a cooperation in first wind gap, guide plate and second wind gap utilizes the wind field and the pressure field of the rotatory fan blade of fan to form complete machine heat dissipation wind field flow path, and the reinforcing radiating effect improves electronic components's security and reliability.

Description

Air conditioner outdoor unit and air conditioner

Technical Field

The utility model relates to an air conditioning field especially relates to an air condensing units and air conditioner.

Background

PFC (Power Factor Correction) module carrier frequency is high among the frequency conversion unit, and switching loss is big, therefore the Power of generating heat is big, simultaneously because electric connection's restriction, the module can't be placed in the most favorable position in heat dissipation wind field, therefore the problem of module high temperature is difficult to solve.

The flow field of the side of the fan blade in the side air-out variable frequency air conditioner shell is extremely complex, the air field of the radiator generally placed on the side is difficult to effectively utilize, and the radiator and the flow field nearby the radiator need to be regulated and controlled, so that the convection heat exchange efficiency is improved, and the temperature of the module is reduced.

The compressor cavity and the pipeline side of the outer machine of the side-air-out variable frequency air conditioner share the same relatively closed space with the components of the electrical box, the compressor, the pressure container, the pipeline and the like are heating components in a refrigerating operation state, the electrical box right above the compressor and the pipeline is often directly opened in ascending heat flow accumulated by a heat source below, so that the temperature rise of the components of the electrical box is high, and the electrical safety and the reliability of the components cannot be effectively guaranteed.

Disclosure of Invention

Some embodiments of the utility model provide an air condensing units and air conditioner for alleviate the poor problem of radiating effect.

Some embodiments of the utility model provide an air condensing units, it includes:

a housing provided with a first tuyere;

the first plate is arranged in the shell and divides the shell into a first cavity and a second cavity, and the first plate is provided with a second air port communicated with the first cavity and the second cavity;

the fan is arranged in the first cavity; and

the guide plate is arranged in the second cavity and positioned above the first air port, and the guide plate extends towards the top of the second cavity in an inclined mode;

wherein, the fan is configured to provide wind pressure, so that the first wind gap enters the wind, the deflector is configured to guide the wind introduced by the first wind gap to the top of the second cavity for heat exchange, and the second wind gap is configured to guide part of the wind after heat exchange to the first cavity.

In some embodiments, the baffle includes a terminal block configured to enable wiring inside and outside the enclosure.

In some embodiments, the outdoor unit of an air conditioner further includes a baffle plate disposed above the first air opening and connected to the flow guide plate, and the baffle plate is configured to guide the air introduced from the first air opening to flow along a lower surface of the flow guide plate.

In some embodiments, the outdoor unit of an air conditioner further includes a first guide vane disposed at the first air inlet, and the first guide vane extends obliquely toward a top of the second chamber.

In some embodiments, the outdoor unit of an air conditioner further includes a second plate connected to the first plate, the second plate is provided with a third air opening communicating the first chamber and the second chamber, the third air opening is located below the first air opening and the second air opening, and a part of air in the second chamber flows to the first chamber through the third air opening.

In some embodiments, the outdoor unit of the air conditioner further includes a compressor disposed at the bottom of the second chamber and below the third air inlet;

after the air introduced by the first air opening is guided to the top of the second cavity by the guide plate for heat exchange, part of the air flows to the first cavity through the second air opening, and part of the air flows to the compressor, and after the heat exchange is carried out on the compressor, the air flows to the first cavity through the third air opening.

In some embodiments, the outdoor unit of an air conditioner further includes a second guide vane disposed at the third air opening, and the second guide vane extends obliquely toward the top of the first cavity.

In some embodiments, the outdoor unit of an air conditioner further includes a cover plate, the casing is provided with a through hole corresponding to a position of the terminal block, the through hole is configured to allow an instrument to be inserted into the casing to connect the terminal block, and the cover plate is detachably provided to the casing and configured to cover the through hole.

In some embodiments, the cover plate is provided with a grasping portion so as to grasp and carry the outdoor unit of the air conditioner.

In some embodiments, the through hole is disposed above the first tuyere.

In some embodiments, the outdoor unit of an air conditioner further includes a first main board disposed in the second chamber and located at a top of the second chamber.

In some embodiments, the outdoor unit of the air conditioner further includes a second main board, and the second main board is disposed in the second cavity and located at the second air opening.

In some embodiments, the outdoor unit of an air conditioner further includes a heat sink disposed in the first cavity and located at the position of the second main board, and the heat sink is located laterally to the fan and above the central axis of the fan.

In some embodiments, the outdoor unit of an air conditioner further includes a cover plate disposed circumferentially around a lower portion of the radiator.

Some embodiments of the utility model provide an air conditioner, it includes foretell air condensing units.

Based on the technical scheme, the utility model discloses following beneficial effect has at least:

in some embodiments, under the action of the wind pressure provided by the fan, the wind outside the shell enters the second cavity from the first wind port, and then is guided by the guide plate to be guided to the top of the second cavity, so that heat exchange is performed on the electronic component at the top of the second cavity, and the safety and reliability of the electronic component are improved; through the cooperation of first wind gap, guide plate and second wind gap, utilize the wind field and the pressure field of the rotatory fan blade of fan to form complete machine heat dissipation wind field flow path, reinforcing radiating effect improves electronic components's security and reliability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic view of an outdoor unit of an air conditioner according to some embodiments of the present invention;

fig. 2 is a schematic view of a location of a heat sink according to some embodiments of the present invention;

fig. 3 is a schematic partial structure view of an outdoor unit of an air conditioner according to some embodiments of the present invention;

fig. 4 is a schematic view illustrating a flow direction of a wind field airflow of a partial structure of an outdoor unit of an air conditioner according to some embodiments of the present invention.

The reference numbers in the drawings illustrate the following:

1-a shell; 101-a first tuyere; 102-a first cavity; 103-a second lumen;

2-a first plate; 201-a second tuyere;

3-a fan;

4-a flow guide plate;

5-a baffle plate;

61-a first guide vane; 62-a second guide vane;

7-a second plate; 701-a third tuyere;

8-a compressor;

9-cover plate;

10-a first main board;

11-a second main board;

12-a heat sink;

13-a cover plate;

14-a module;

15-radiator base.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those 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 so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the invention.

As shown in fig. 1, some embodiments provide an outdoor unit of an air conditioner including a case 1, a first plate 2, a fan 3, and a baffle 4.

The housing 1 is provided with a first tuyere 101. The first plate 2 is arranged in the shell 1 and divides the interior of the shell 1 into a first cavity 102 and a second cavity 103, and the first plate 2 is provided with a second air opening 201 communicated with the first cavity 102 and the second cavity 103. The first tuyere 101 is located in the second chamber 103. The fan 3 is provided in the first chamber 102. The guide plate 4 is arranged in the second cavity 103 and is positioned above the first air port 101, and the guide plate 4 extends towards the top of the second cavity 103 in an inclined manner.

Wherein, the fan 3 is configured to provide wind pressure to make the first wind gap 101 intake wind, the baffle 4 is configured to guide the wind introduced from the first wind gap 101 to the top of the second chamber 103 for heat exchange, and the second wind gap 201 is configured to guide part of the wind after heat exchange to the first chamber 102.

Under the effect of the wind pressure that fan 3 provided, the outside temperature gets into second chamber 103 for the "clean wind" of ring temperature from first wind gap 101, later leads through guide plate 4, leads to the top of second chamber 103 with wind, carries out the heat transfer to the electronic components at second chamber 103 top, improves electronic components's security and reliability. Through the cooperation of first wind gap 101, guide plate 4 and second wind gap 201, utilize the wind field and the pressure field of the rotatory fan blade of fan 3 to form complete machine heat dissipation wind field flow path, reinforcing radiating effect improves electronic components's security and reliability.

In some embodiments, the baffle 4 comprises a terminal block configured to enable wiring inside and outside the enclosure 1. The position and the setting angle of the wiring board are utilized, the wiring board is used as a guide plate, the flow direction of air can be guided, the additional arrangement of parts is avoided, the structure is simplified, and the cost is reduced.

In some embodiments, the second air opening 201 is disposed at the position of the first plate 2 adjacent to the fan 3 by using the wind pressure provided by the fan 3, the first air opening 101 is disposed at the position of the housing 1 adjacent to the flow guide plate 4, the first air opening 101 is located in the second chamber 103, and the wind is guided to the top of the second chamber 103 by the regulation and control of the first air opening 101, the flow guide plate 4 and the second air opening 201 and the inflow and outflow direction and the path along the wind, so as to directly dissipate the heat of the control main board and the surface components disposed at the top of the second chamber 103.

The second chamber 103 is used for arranging a control mainboard of the air conditioner outdoor unit, and electronic components, a control module and the like on the control mainboard.

In some embodiments, the second tuyere 201 is a strip-shaped hole. Optionally, the distance between the uppermost part of the second tuyere 201 and the top of the casing 1 is in the range of 60mm to 80mm, and if the upper part of the distance is opened, a large air inlet is formed in the upper half part of the strip-shaped hole, so that the whole flow field is disturbed.

In some embodiments, the first tuyere 101 and the second tuyere 201 are both located above the central axis of the fan 3.

In some embodiments, the outdoor unit further includes a first main plate 10, and the first main plate 10 is disposed in the second chamber 103 and located at the top of the second chamber 103.

Under the effect of the wind pressure that fan 3 provided, the outside wind of casing 1 gets into second chamber 103 from first wind gap 101, later leads through guide plate 4, leads to wind to the top of second chamber 103, carries out the heat transfer to the electronic components who sets up on first mainboard 10 and the first mainboard 10 that second chamber 103 top set up, strengthens the radiating effect, improves electronic components's security and reliability.

In some embodiments, the outdoor unit further includes a second main plate 11, and the second main plate 11 is disposed in the second chamber 103 and located at the position of the second air opening 201.

Under the effect of the wind pressure that fan 3 provided, the outside temperature gets into second chamber 103 for the wind of ring temperature from first wind gap 101, later lead through guide plate 4, lead wind to the top of second chamber 103, carry out the heat transfer to the electronic components who sets up on first mainboard 10 and the first mainboard 10 that the second chamber 103 top set up, it is under the effect of blockking of the inner wall of casing 1 to follow wind, deflect downwards, part wind flows to first chamber 102 through second wind gap 201, carry out the heat transfer to the electronic components on second mainboard 11 and the second mainboard 11 at this in-process, strengthen the radiating effect, improve electronic components's security and reliability, second wind gap 201 can effectively derive the heat current in the second chamber 103, reduce the temperature of control mainboard and its surface components.

In some embodiments, the first end of the baffle 4 is located at the top of the first tuyere 101, the second end of the baffle 4 is inclined toward the inside of the casing 1, and the second end of the baffle 4 is higher than the first end of the baffle 4.

The guide plate 4 guides the air introduced from the first air inlet 101 to the top of the second cavity 103 so as to exchange heat with the first main board 10 arranged at the top of the second cavity 103, and part of the air also dissipates heat of the second main board 11 at the side of the second cavity 103 so as to reduce the temperature of the control main board and the surface components thereof.

In some embodiments, as shown in fig. 3, the outdoor unit of the air conditioner further includes a baffle 5, the baffle 5 is disposed above the first air opening 101 and connected to the first end of the flow guide plate 4, and the baffle 5 is configured to guide the air introduced from the first air opening 101 to flow along the lower surface of the flow guide plate 4. Through setting up baffle 5, the air current that makes first wind gap 101 introduce as far as is to the lower surface of guide plate 4, leads to the interior top of second chamber 103 through guide plate 4 then, improves the utilization ratio of wind.

In some embodiments, the outdoor unit of the air conditioner further includes a first guide vane 61, the first guide vane 61 is disposed at the first air opening 101, and the first guide vane 61 extends obliquely toward the top of the second chamber 103.

Optionally, a louver formed by the first deflector 61 is provided at the first tuyere 101, the outlet of the louver being directed towards the inside of the second chamber 103 and towards the top of the second chamber 103. The inlet direction of the louver is towards the outer side of the shell 1 and towards the lower part of the shell 1, and meets the angle of the inlet air.

Optionally, an included angle between the inclined direction of the first guide vane 61 and the horizontal direction is 60 degrees to 75 degrees, which not only can meet the requirement of water resistance, but also can reduce the fluid resistance.

In some embodiments, the outdoor unit of the air conditioner further includes a second plate 7, the second plate 7 is connected to the first plate 2, the second plate 7 is provided with a third air opening 701 communicating the first chamber 102 and the second chamber 103, the third air opening 701 is located below the first air opening 101 and the second air opening 201, and a portion of the air in the second chamber 103 flows to the first chamber 102 through the third air opening 701.

Under the action of the wind pressure provided by the fan 3, the wind outside the housing 1 enters the second cavity 103 from the first wind gap 101, then is guided by the guide plate 4, the wind is guided to the top of the second cavity 103, the heat exchange is performed on the first main board 10 arranged at the top of the second cavity 103 and the electronic components arranged on the first main board 10, then the wind deflects downwards under the blocking action of the inner wall of the housing 1, part of the wind flows to the first cavity 102 through the second wind gap 201, in the process, the heat exchange is performed on the second main board 11 and the electronic components on the second main board 11, part of the wind flows to the lower part of the second cavity 103, the heat dissipation is performed on the components at the lower part of the second cavity 103, the part of the wind flows upwards in the reverse direction after being blocked by the components at the lower part of the second cavity 103, and part of the wind flows to the first cavity 102 through the third wind gap 701, the second wind gap 201 and the third wind gap 701 can effectively guide out the heat flow in the second cavity 103, the temperature of the control main board and the surface components thereof is reduced, and the wind field and the pressure field of the fan blades rotated by the fan 3 are matched with the first air port 101, the guide plate 4, the second air port 201 and the third air port 701 to form a whole machine heat dissipation wind field flow path, so that the heat dissipation effect is enhanced, and the safety and the reliability of the electronic components are improved.

In some embodiments, the outdoor unit of the air conditioner further includes a compressor 8, and the compressor 8 is disposed at the bottom of the second chamber 103 and below the third air inlet 701.

After the air introduced from the first air port 101 is guided to the top of the second cavity 103 by the guide plate 4 for heat exchange, part of the air flows to the first cavity 102 through the second air port 201, and part of the air flows to the compressor 8, and after the heat exchange is performed on the compressor 8, the air flows to the first cavity 102 through the third air port 701.

The wind introduced by the first wind opening 101 exchanges heat with the first main board 10 arranged at the top of the second cavity 103 and electronic components arranged on the first main board 10, then the wind deflects downwards under the blocking effect of the inner wall of the shell 1, part of the wind flows to the first cavity 102 through the second wind opening 201, in the process, the heat exchange is carried out on the second main board 11 and the electronic components on the second main board 11, and part of the wind flows to the lower part of the second cavity 103 to dissipate heat of the compressor and other components at the lower part of the second cavity 103, so that a whole machine heat dissipation wind field flow path is formed.

In some embodiments, the first plate 2 and the second plate 7 cooperate to divide the housing 1 into a first chamber 102 and a second chamber 103, and to divide the second chamber 103 into an upper chamber located at an upper portion and a lower chamber located at a lower portion. The upper cavity is used for arranging a mainboard, a module and other electronic components and is an electrical appliance cavity. The lower chamber is used for arranging a compressor and the like and is a compressor chamber.

In some embodiments, the outdoor unit of the air conditioner further includes a second guide vane 62, the second guide vane 62 is disposed at the third air opening 701, and the second guide vane 62 extends obliquely toward the top of the first chamber 102.

Optionally, a louver formed by the second guide vane 62 is disposed at the third air inlet 701, the louver and the central axis of the fan 3 are located at the same horizontal height, and an angle between an outlet direction of the louver and the horizontal direction is 45 degrees.

In some embodiments, the outdoor unit of the air conditioner further includes a cover plate 9, the casing 1 is provided with a through hole corresponding to a position of the terminal block, the through hole is configured to allow an instrument to be inserted into the casing 1 to connect the terminal block, and the cover plate 9 is detachably provided to the casing 1 and configured to cover the through hole.

When the wiring is needed to be carried out on the outdoor unit of the air conditioner, the cover plate 9 can be taken down to leave the through hole, an instrument can be stretched into the through hole to carry out wiring on the wiring board, and after the wiring is completed, the cover plate 9 can be installed to cover the through hole.

In some embodiments, the cover plate 9 is provided with a grip portion to grip and carry the outdoor unit of the air conditioner.

In some embodiments, the through-hole is provided above the first tuyere 101. The cover plate 9 covers the through hole, the cover plate 9 is provided with a grasping part, and a first air opening 101 is formed right below the cover plate 9. Under the effect of the side air pressure provided by the fan 3, the wind outside the housing 1 enters the second chamber 103 from below the cover plate 9, and the extended guide plate 4 guides the wind.

In some embodiments, as shown in fig. 2, the outdoor unit of the air conditioner further includes a heat sink 12, the heat sink 12 is disposed in the first cavity 102 and located at the position of the second main plate 11, and the heat sink 12 is located at a side of the fan 3 and above a central axis of the fan 3.

In some embodiments, the second main board 11 is provided with electronic components such as a module 14 on a side away from the fan 3, and the second main board 11 is provided with a heat sink 12 on a side close to the fan 3.

Optionally, the module 14 includes a PFC (Power Factor Correction) module.

Because the carrier frequency of PFC module is high, switching loss is big, therefore the heating power is big, simultaneously because the restriction of electrical connection, the PDC module can not place in the most favorable position of heat dissipation wind field, therefore the module radiating effect is bad. Some embodiments of the present disclosure are equipped with radiator 12 on the side that second mainboard 11 is close to fan 3, radiator 12 dispels the heat to one side that second mainboard 11 is close to fan 3, indirectly dispel the heat to the electronic components such as module 14 that set up on the second mainboard 11, and second mainboard 11 position sets up second wind gap 201, still be equipped with first wind gap 102 on the casing 1, the wind pressure that provides through fan 3, introduce outdoor wind through first wind gap 102, and lead through guide plate 4, make wind to first mainboard 10 heat transfer back, second mainboard 11 flows through, directly dispel the heat to the electronic components such as module 14 that set up on the second mainboard 11, and the heat dissipation efficiency is improved.

In some embodiments, the outdoor unit further includes a cover plate 13, and the cover plate 13 is circumferentially disposed around a lower portion of the radiator 12. The shroud 13 is located above the central axis of the fan 3.

Because the radiator 12 is arranged above the rotating blades of the fan 3, the wind provided by the fan 3 flows vertically upwards from the lower part of the radiator 12, and therefore, the fins of the radiator 12 can be vertically arranged to conform to the wind-driven direction.

When each blade of the fan 3 sweeps around the fins of the radiator 12, the blades move towards the air outlet side of the outdoor unit of the air conditioner relative to the fins, so that a transverse force perpendicular to the direction of the fins exists in the middle and downstream positions of the fins of the radiator 12, and air flowing through the fins in parallel is drawn out by the transverse air outlet force in the middle and downstream positions of the fins, so that the air cannot flow upwards any more, and heat of a module arranged above the radiator 12 and having high heating power cannot be effectively taken away through convection. Based on this, set up shroud 13 in the lower part circumference of radiator 12, make vertical ascending wind lengthen the route of heat transfer in the fin through shroud 13, then the air is taken out again after moving to the well upper reaches, has strengthened the convection heat transfer effect of radiator.

Optionally, the length X (vertical direction) of the cover plate 13 is about 50mm and within 75mm, the width Y of the cover plate 13 is consistent with the width of the radiator base 15, and the height Z of the cover plate 13 exceeds the height of the radiator fins by about 10 mm.

Alternatively, the cover plate 13 may be made of different materials such as a sheet metal member, and the fixing manner is free.

In some embodiments, the outdoor unit of the air conditioner adopts a side air outlet structure, the side wall of the casing 1 located in the first cavity 102 is provided with an air inlet and an air outlet, and the air outlet is arranged at the side of the casing 1, and is in a side air outlet mode.

Because the flow field in the first cavity 102 is extremely complex in the side air-out mode, the air field of the radiator generally placed on the side is difficult to be effectively utilized, and the radiator and the flow field near the radiator need to be regulated and controlled, so that the heat convection efficiency is improved, and the temperature of the module is reduced. Based on this, set up shroud 13 in radiator 12's circumference, make vertical ascending wind lengthen the route of heat transfer in the fin through shroud 13, then the air is taken out again after moving the well upper reaches, has strengthened the convection heat transfer effect of radiator.

Moreover, a compressor cavity of the air conditioner external unit with side air outlet and the side of the pipeline share the same relatively closed space with components of the electrical box, the compressor, the pressure container, the pipeline and the like are heating components in a cooling operation state, and the electrical box right above the compressor and the pipeline is often directly opened in rising heat flow accumulated by a heat source below, so that the temperature rise of the components of the electrical box is high, and the electrical safety and reliability of the components cannot be effectively guaranteed. Based on this, through the cooperation of first wind gap 101, guide plate 4, second wind gap 201 and third wind gap 701, utilize the wind field and the pressure field of the rotatory fan blade of fan 3 to form complete machine heat dissipation wind field flow path, can effectively derive the second chamber 103 heat current, reduce the control mainboard front component temperature, strengthen the radiating effect, improve electronic components's security and reliability.

An embodiment of an outdoor unit of an air conditioner in which the inside of the casing 1 is partitioned into a first chamber 102 and a second chamber 103 by a first plate 2 and a second plate 7 will be described. And the upper part of the second cavity 103 is used for installing components such as a mainboard, electronic components and the like, and is an electrical appliance cavity. The lower portion of the second chamber 103 is used for mounting a compressor and the like, and is a compressor chamber.

The fan 3 is provided in the first chamber 102.

The electrical appliance cavity is provided with a guide plate 4, a first main plate 10 and a second main plate 12. The compressor chamber is provided with a compressor 8.

The position that is close to guide plate 4 on casing 1 is equipped with first wind gap 101, and second board 2 is equipped with second wind gap 201, and first wind gap 101 sets up with second wind gap 201 relatively, and all is located the top of the axis of fan 3. First wind gap 101 is equipped with first water conservancy diversion piece 61, and first wind gap 101 top is equipped with apron 9, and the through-hole that sets up on the apron 9 cover casing 1, the position of through-hole and guide plate 4 to corresponding, the through-hole is used for stretching into the apparatus to the casing 1 in and carries out the wiring to guide plate 4.

The second plate 7 is provided with a third air port 701, and the third air port 701 is located below the first air port 101 and the second air port 201 and is located at the same horizontal height as the central axis of the fan 3.

The second main plate 12 is disposed at the position of the second tuyere 201. A radiator 12 is arranged on one side of the second main board 12 close to the fan 3, a cover plate 13 is arranged on the lower portion of the radiator 12 in the circumferential direction, and a module, an electronic component and the like are arranged on one side of the second main board 12 far away from the fan 3.

As shown in fig. 4, under the action of the wind pressure provided by the fan 3, "clean wind" with an external temperature of an annular temperature enters the electrical cavity from the first wind gap 101, and under the guiding action of the extended guide plate 4, the wind moves obliquely upward from below along the lower surface of the guide plate 4 and flows to the upper part of the electrical cavity, firstly passes through the first main board 10 with the upside-down top of the electrical cavity to dissipate heat of components on the first main board 10, and then under the action of the right-angled corner of the injection molding part, the wind deflects downward to dissipate heat of components on the surface of the second main board 12; finally, under the action of the second air opening 201 on the first plate 2 and the third air opening 701 on the second plate 7, the air is divided, part of the air flows to the first cavity 102 through the second air opening 201, part of the air flows to the first cavity 102 through the third air opening 701, and part of the air continues to flow downwards to the cavity of the compressor, so that heat dissipation is performed on a pressure container such as the compressor, and then the part of the air flows back upwards under the action of the fixed wall surface and enters into recirculation.

From the trend of temperature rise experimental data, compared with the scheme that the second cavity 103 is not integrally designed with an air inlet and outlet duct, after the whole machine heat dissipation duct provided by the embodiment of the disclosure is adopted, the ring temperature of the electrical box and the temperature of surface element devices on the main board can be effectively reduced by about 2 ℃.

The side of the second main board 12 close to the fan 3 is provided with a radiator 12, the lower part of the radiator 12 is provided with a cover plate 13, the path of the vertical upward wind exchanging heat in the fins is lengthened through the cover plate 13, and then the air moves to the middle upstream and is drawn out. The flow field near the radiator is regulated and controlled by using the measures of the cover plate 13 and the like, and the distance of wind flowing into the radiator fins and performing convective heat transfer is prolonged, so that the fin heat transfer is enhanced, and the temperature of the module is reduced. From the simulated temperature field trend, the temperature of all modules on the radiator is reduced by more than 2 ℃.

According to the heat dissipation device, the heat exchange efficiency of the heat dissipater is enhanced by regulating and controlling the wind field, and the temperature of the module and the temperature of the main board components are reduced by combining the heat dissipation flow path of the whole machine.

Some embodiments provide an air conditioner, which includes the air conditioner outdoor unit.

In some embodiments, the air conditioner comprises a variable frequency air conditioner.

Based on the above embodiments of the present invention, the technical features of one of the embodiments can be advantageously combined with one or more other embodiments without explicit negatives.

In the description of the present invention, it should be understood that the terms "first", "second", "third", etc. are used to define the components, and are only used for the convenience of distinguishing the components, and if not stated otherwise, the terms have no special meaning, and thus, should not be construed as limiting the scope of the present invention.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims (15)

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

a housing (1) provided with a first tuyere (101);

the first plate (2) is arranged in the shell (1) and divides the interior of the shell (1) into a first cavity (102) and a second cavity (103), and the first plate (2) is provided with a second air opening (201) which is communicated with the first cavity (102) and the second cavity (103);

a fan (3) provided in the first chamber (102); and

the guide plate (4) is arranged in the second cavity (103) and is positioned above the first air opening (101), and the guide plate (4) extends towards the top of the second cavity (103) in an inclined mode;

wherein the fan (3) is configured to provide wind pressure to make the first wind port (101) intake wind, the deflector (4) is configured to guide the wind introduced by the first wind port (101) to the top of the second cavity (103) for heat exchange, and the second wind port (201) is configured to guide part of the wind after heat exchange to the first cavity (102).

2. The outdoor unit of claim 1, wherein the guide plate (4) comprises a terminal block configured to implement wiring inside and outside the casing (1).

3. The outdoor unit of claim 1, further comprising a baffle plate (5), wherein the baffle plate (5) is disposed above the first air opening (101) and connected to the baffle plate (4), and the baffle plate (5) is configured to guide the air introduced from the first air opening (101) to flow along the lower surface of the baffle plate (4).

4. The outdoor unit of claim 1, further comprising a first guide vane (61), wherein the first guide vane (61) is disposed at the first air inlet (101), and the first guide vane (61) extends obliquely toward the top of the second chamber (103).

5. The outdoor unit of claim 1, further comprising a second plate (7) connected to the first plate (2), wherein the second plate (7) is provided with a third air inlet (701) for communicating the first chamber (102) with the second chamber (103), the third air inlet (701) is positioned below the first air inlet (101) and the second air inlet (201), and a portion of the air in the second chamber (103) flows to the first chamber (102) through the third air inlet (701).

6. The outdoor unit of claim 5, further comprising a compressor (8), wherein the compressor (8) is disposed at the bottom of the second chamber (103) and below the third louver (701);

after the air introduced by the first air opening (101) is guided to the top of the second cavity (103) by the guide plate (4) for heat exchange, part of the air flows to the first cavity (102) through the second air opening (201), and part of the air flows to the compressor (8), and after the heat exchange of the compressor (8), the air flows to the first cavity (102) through the third air opening (701).

7. The outdoor unit of claim 5, further comprising a second guide vane (62), wherein the second guide vane (62) is provided at the third louver (701), and the second guide vane (62) extends obliquely toward the top of the first chamber (102).

8. The outdoor unit of claim 2, further comprising a cover plate (9), wherein the casing (1) is provided with a through hole corresponding to a position of the terminal block, the through hole being configured to allow an instrument to be inserted into the casing (1) to connect the terminal block, and the cover plate (9) is detachably provided to the casing (1) and configured to cover the through hole.

9. The outdoor unit of claim 8, wherein the cover plate (9) is provided with a grip portion for gripping and carrying the outdoor unit.

10. The outdoor unit of claim 8, wherein the through hole is formed above the first air inlet (101).

11. The outdoor unit of claim 1, further comprising a first main plate (10), wherein the first main plate (10) is disposed in the second chamber (103) and positioned at the top of the second chamber (103).

12. The outdoor unit of claim 1, further comprising a second main plate (11), wherein the second main plate (11) is disposed in the second chamber (103) and located at the position of the second air inlet (201).

13. The outdoor unit of claim 12, further comprising a radiator (12), wherein the radiator (12) is disposed in the first chamber (102) and located at the position of the second main plate (11), and the radiator (12) is located laterally of the fan (3) and located above the central axis of the fan (3).

14. The outdoor unit of claim 13, further comprising a cover plate (13), wherein the cover plate (13) is circumferentially disposed around a lower portion of the radiator (12).

15. An air conditioner comprising the outdoor unit of any one of claims 1 to 14.

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