CN217082743U - Outdoor machine of air conditioner - Google Patents

Abstract

The utility model provides an air conditioner outdoor unit, which comprises a casing, wherein a holding cavity is defined in the casing; the containing cavity is divided into a first cavity for installing the fan and a second cavity for installing the throttling device by the partition plate; the partition plate is provided with a vent hole for communicating the first cavity with the second cavity, and the partition plate extends to a direction far away from the fan at the vent hole to form a boss; the electric fitting box comprises a PCB board provided with a heating element, and the PCB board extends along the up-down direction; the radiator is arranged in the electric packaging box and located on the upper portion of the electric packaging box, one end of the radiator is connected with the throttling device, and the other end of the radiator is communicated with a low-pressure air pipe of the air conditioner outdoor unit. This application has the denso box of PCB board through the setting and places along upper and lower direction to make the air current circulation around the denso box more unobstructed, make the heat exchange efficiency of electricity dress box increase.

Description

Outdoor machine of air conditioner

Technical Field

The utility model belongs to the technical field of air condensing units, especially, relate to an air condensing unit.

Background

With the popularization of air conditioners, the upper limit of the use temperature requirement of the air conditioner is higher and higher. In the case of cooling in a high temperature environment, the outdoor unit of the air conditioner is exposed to an outdoor high temperature environment. And in the working process, the outdoor unit of the air conditioner exchanges heat with the outside air to release heat. However, at a higher ambient temperature, the air temperature after heat exchange by the heat exchanger is higher, and heat generated in the operation process of the electrical components in the electronic control box in the air conditioner outdoor unit is more difficult to dissipate, so that the electrical components in the electronic control box are always in a high-temperature state and are aged and damaged, and the use reliability of the air conditioner outdoor unit is reduced.

In view of this, the present invention is proposed.

Disclosure of Invention

The utility model provides an to foretell technical problem, provide an air condensing units.

In order to achieve the above object, the utility model discloses a technical scheme be:

an outdoor unit of an air conditioner, comprising:

a housing defining an accommodating chamber;

the baffle plate divides the containing cavity into a first cavity for installing the fan and a second cavity for installing the throttling device; the partition board is provided with a vent hole for communicating the first cavity with the second cavity, and the partition board extends to the direction far away from the fan at the vent hole to form a boss;

the electric box comprises a PCB board provided with a heating element, and the PCB board extends along the vertical direction;

the radiator is arranged in the electric fitting box and is positioned at the upper part of the electric fitting box, one end of the radiator is connected with the throttling device, and the other end of the radiator is communicated with a low-pressure air pipe of the outdoor unit of the air conditioner.

In some embodiments of the present application, the casing includes a front panel, the partition board includes a first board body disposed opposite to the front panel and a second board body connected to the front panel, and the boss is formed by extending a connection portion of the first board body and the second board body.

In some embodiments of this application, the denso box is including keeping away from the door body on the side of the direction of fan, and the downside of the door body outwards extends and forms first bulge, and first bulge is equipped with the screw hole, and first bulge passes through the screw and is connected with the boss.

In some embodiments of this application, first plate body is equipped with the turn-ups in the one side that is close to the door body, is equipped with the screw hole on the turn-ups, and the turn-ups passes through the screw connection on the door body.

In some embodiments of the present application, the electrical box further includes a box body, the box body extends outward towards the side of the front panel to form a second protruding portion, the second plate body extends a third protruding portion towards the side wall close to the box body, and the second protruding portion and the third protruding portion are matched and connected in a screw fit manner.

In some embodiments of the present application, the outdoor unit of an air conditioner includes a heat exchanger, the heat exchanger includes a first heat exchanging portion disposed opposite to the front panel, and a gap is provided between a side surface of the electrical component box away from the front panel and the first heat exchanging portion.

In some embodiments of the present application, the lateral wall of the second plate body close to the box body is a first lateral wall, the first lateral wall extends from the third protruding portion to the direction far away from the box body to form a first step portion, and a gap is formed between the first step portion and the box body.

In some embodiments of the present application, the second plate body is provided with a vent hole at a lower side of the third protrusion.

In some embodiments of the present application, the door body is provided with at least two first heat dissipation holes corresponding to the heat sink, the door body is provided with at least two second heat dissipation holes at the lower side of the first heat dissipation holes, and the area of the first heat dissipation holes is smaller than that of the second heat dissipation holes.

In some embodiments of the application, the electrical box further comprises a back plate arranged opposite to the door body, at least two first heat dissipation holes are formed in the position, corresponding to the heat radiator, of the back plate, and at least two second heat dissipation holes are formed in the lower side of the first heat dissipation holes of the back plate.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model provides an air conditioner outdoor unit, which comprises a casing, wherein a holding cavity is defined in the casing; the partition plate divides the accommodating cavity into a first cavity for mounting the fan and a second cavity for mounting the throttling device; the partition board is provided with a vent hole for communicating the first cavity with the second cavity, and the partition board extends to the direction far away from the fan at the vent hole to form a boss; the electric fitting box comprises a PCB board provided with a heating element, and the PCB board extends along the up-down direction; the radiator is arranged in the electric fitting box and is positioned at the upper part of the electric fitting box, one end of the radiator is connected with the throttling device, and the other end of the radiator is communicated with a low-pressure air pipe of the outdoor unit of the air conditioner. This application has the denso box of PCB board through the setting and places along upper and lower direction to make the air current circulation around the denso box more unobstructed, make the heat exchange efficiency of electricity dress box increase.

Drawings

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

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

fig. 3 is a schematic view of the outdoor unit of an air conditioner according to the first embodiment of the present invention, wherein the door body is removed from the electrical fitting box;

FIG. 4 is a rear view of FIG. 3;

fig. 5 is a schematic partial structural view of an outdoor unit of an air conditioner according to a second embodiment of the present invention;

FIG. 6 is an enlarged view A of FIG. 5;

fig. 7 is a front view of a part of the structure of the third embodiment of the outdoor unit of an air conditioner of the present invention;

fig. 8 is a side view of a part of the structure of the third embodiment of the outdoor unit of an air conditioner according to the present invention;

FIG. 9 is a cross-sectional view B-B of FIG. 8;

fig. 10 is a disassembled view showing a part of the structure of the third embodiment of the outdoor unit of the air conditioner of the present invention;

fig. 11 is a side view of a heat radiation block according to a third embodiment of the outdoor unit of an air conditioner of the present invention;

FIG. 12 is a cross-sectional view C-C of FIG. 11;

in the above figures: 100. an air-conditioning indoor unit; 1. a housing; 2. a partition plate; 21. a boss; 22. A first plate body; 23. a second plate body; 22. a first step portion; 23. a third projecting portion; 3. Electrically packaging the box; 31. a PCB board; 32. a door body; 321. a first projecting portion; 33. a box body; 331. A second projection; 34. a first heat dissipation hole; 35. a second heat dissipation hole; 4. a heat sink; 5. An accommodating cavity; 51. a first chamber; 511. a fan; 52. a second chamber; 521. a compressor; 53. A vent; 6. screw holes; 7. a radiating pipe; 71. a first tube section; 72. a second tube section; 73. A third tube section; 8. a communicating pipe; 81. a first communication pipe; 82. a second communicating pipe; 83. welding spots; 9. a four-way valve; 91. a valve body; 10. a heat dissipating block; 101. a first threaded hole; 102. and a second threaded hole.

Detailed Description

The present invention is further described below in conjunction with specific embodiments so that those skilled in the art may better understand the present invention and can implement the present invention, but the scope of the present invention is not limited to the scope described in the detailed description. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

It should be noted that the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Example one

Referring to fig. 1 to 4, the present embodiment provides an outdoor unit of an air conditioner, including a casing 1, and a partition plate 2, an electrical box 3, and a heat sink 4 are disposed in the casing 1.

The casing 1 defines a receiving chamber 5 for surrounding the body of the outdoor unit of the air conditioner and protecting the internal devices thereof. The casing 1 includes a front panel having an air outlet through which the air flow in the casing 1 flows out of the outdoor unit of the air conditioner.

The partition board 2 divides the accommodating chamber 5 into a first chamber 51 for installing the fan 511 and a second chamber 52 for installing the throttling device, and the partition board 2 is provided with a ventilation opening 53 for communicating the first chamber 51 with the second chamber 52. The air flows of the first chamber 51 and the second chamber 52 flow from the ventilation opening 53, so that heat is exchanged between the first chamber 51 and the second chamber 52. The first cavity 51 is communicated with an air outlet arranged on the front panel, the fan 511 is arranged in the first cavity 51, and the compressor 521 and the electric box 3 are arranged in the second cavity 52.

The partition board 2 is extended to a direction away from the blower 511 at the ventilation opening 53 to form a boss 21, and the boss 21 may be disposed in parallel with the lower side plate of the outdoor unit of the air conditioner, so as to facilitate the installation of the electric box 3.

The electrical box 3 is vertically installed on the boss 21, the electrical box 3 is square, and the largest side surface of the electrical box 3 is parallel to the left/right side plate of the outdoor unit of the air conditioner, so that the electrical box 3 can be vertically installed on the partition plate 2.

The electronic box 3 includes a PCB board 31 mounted with a heating element, the PCB board 31 extends in the up and down direction, and the PCB board 31 is vertically placed on the boss 21.

The radiator 4 is arranged inside the electric box 3, the radiator 4 is located on the upper portion of the electric box 3, one end of the radiator 4 is connected with the throttling device, and the other end of the radiator 4 is communicated with the low-pressure air pipe of the air conditioner outdoor unit, so that the refrigerant flows back after the radiator 4 absorbs heat of the electric box 3, the refrigerant continuously flows in the radiator 4, and the electric box 3 is cooled.

The radiator 4 is located inside the electrical box 3, and absorbs heat released by the electrical box 3 when the refrigerant flows through the radiating pipe 7, so as to realize heat dissipation of the electrical box 3.

When the blower 511 operates, negative pressure is formed in the first cavity 51, air in the second cavity 52 flows through the radiator 4, the air absorbs heat from the refrigerant in the radiating pipe 7 to form low-temperature airflow, the low-temperature airflow flows through the electric box 3 and carries the heat released by the electric box 3, then the low-temperature airflow enters the first cavity 51 through the ventilation opening 53, and finally the low-temperature airflow is discharged out of the casing 1 through the blower 511. The arrangement makes full use of the refrigerant property to dissipate heat and cool the electric box 3, and takes away heat released by the power heating element (power element) in the electric box 3 during operation, thereby ensuring the service life of the heating element.

The ventilation opening 53 is arranged at the top end of the partition board 2 and at a position of the partition board 2 far away from the front panel, and the electric box 3 corresponds to the ventilation opening 53. When the fan 511 rotates, a part of air in the second cavity 52 passes through the heat sink 4 and is absorbed by the refrigerant in the heat sink 4 to form a low-temperature airflow, the low-temperature airflow flows from the side of the electrical box 3 close to the front panel to the side of the electrical box 3 away from the front panel along the bottom of the electrical box 3, and the low-temperature airflow carries heat away from the electrical box 3, enters the first cavity 51 through the ventilation opening 53 and is exhausted by the fan 511.

In the present embodiment, the heat sink 4 is located inside the electrical box 3 and above the electrical box 3, and absorbs heat released from the electrical box 3 when the cooling medium flows through the heat pipe 7, so as to dissipate heat from the electrical box 3. When the blower 511 operates, negative pressure is formed in the first cavity 51, air in the second cavity 52 flows through the radiator 4, the air absorbs heat from the refrigerant in the radiating pipe 7 to form low-temperature airflow, the low-temperature airflow flows through the bottom of the electric box 3 and carries the heat released by the electric box 3, then the low-temperature airflow enters the first cavity 51 through the ventilation opening 53, and finally the low-temperature airflow is discharged out of the casing 1 through the blower 511. The arrangement makes full use of the refrigerant property to dissipate heat and cool the electric box 3, and takes away heat released by the power heating element (power element) in the electric box 3 during operation, thereby ensuring the service life of the heating element.

In this embodiment, through the arrangement of the ventilation opening 53, the electrical component box 3 and the heat sink 4, when the fan 511 operates, a refrigerant flows through the heat sink 4, when the refrigerant flows through the heat dissipation pipe 7, the refrigerant absorbs heat of a heat generating component in the electrical component box 3 and forms a cold airflow, the cold airflow flows through the electrical component box 3, then flows from the ventilation opening 53 to the first cavity 51, and flows into the environment through the air outlet, so as to cool the electrical component box 3, so that the electrical component box 3 operates at a lower temperature, the released heat of the electrical component box 3 is fully taken away, the electrical component box 3 is effectively cooled, the heat dissipation efficiency is improved, and the outdoor air conditioner can operate at a higher ambient temperature.

As a configurable mode, the housing 1 includes a front panel, the partition 2 includes a first plate 22 and a second plate 23 opposite to the front panel, and the boss 21 is formed by extending a joint of the first plate 22 and the second plate 23, so that the electrical component box 3 can be located at a communication position between the first cavity 51 and the second cavity 52, and located at a position where the air flow is concentrated and circulated, thereby further cooling the electrical component box 3.

Specifically, the partition board 2 is integrally formed, and a smooth transition connection is formed between the first board 22 and the second board 23, so that the interior of the outdoor unit is prevented from being scratched by an installer when the interior of the outdoor unit is installed, and a smooth inner surface is provided for the flow of air between the first chamber 51 and the second chamber 52, so that the resistance of wind is reduced, and the wind can rapidly flow out of the outdoor unit.

As a configurable manner, the electrical component box 3 includes a door 32 on a side surface away from the direction of the fan 511, a lower side of the door 32 extends outwards to form a first protruding portion 321, the first protruding portion 321 is provided with a screw hole 6, the first protruding portion 321 is connected with the boss 21 through a screw, specifically, the boss 21 is provided with the screw hole 6 at a position corresponding to the screw hole 6 of the first protruding portion 321, so that the first protruding portion 321 and the boss 21 are connected through the screw penetrating into the screw.

As a configurable mode, the first plate 22 is provided with a flange at a side close to the door 32, the flange is provided with a screw hole 6, and the flange is connected to the door 32 through a screw. Specifically, the door body 32 is provided with a screw hole 6 at a position corresponding to the screw hole 6 of the flange, so that a screw is inserted into the screw hole 6.

As a configurable mode, the electrical box 3 further includes a box body 33, the box body 33 extends outward toward the side of the front panel to form a second protrusion 331, the second board 23 extends out of the third protrusion 25 toward the side wall near the box body 33, and the second protrusion 331 and the third protrusion 25 are matched and connected by screws.

As an optional mode, the outdoor unit of the air conditioner includes a heat exchanger, the heat exchanger includes a first heat exchanging portion disposed opposite to the front panel, and a gap is formed between a side surface of the electric component box 3 away from the front panel and the first heat exchanging portion, so that the air flow of the second chamber 52 can flow from the gap to the first chamber 51.

As a configurable manner, the side wall of the second plate 23 close to the box 33 is a first side wall, the first side wall extends from the third protrusion 25 to the direction far away from the box 33 to form a first step portion 24, and a gap is formed between the first step portion 24 and the box 33, so that the airflow of the second chamber 52 can flow from the gap between the first step portion 24 and the box 33 to the first chamber 51, and local overheating caused by close contact between the first side wall and the box 33 is avoided, thereby enhancing the heat dissipation performance of the electrical box 3.

As one possible way, the second plate 23 is provided with a vent hole on the lower side of the third protruding portion 25, the vent hole being used for air flow communication between the first chamber 51 and the second chamber 52.

As an optional manner, the door 32 is provided with at least two first heat dissipation holes 34 corresponding to the heat sink 4, so that the air flow at the heat sink 4 can rapidly flow out from the first heat dissipation holes 34, and the heat sink 4 can maintain good air flow circulation. The door 32 is provided with at least two second heat dissipation holes 35 at the lower side of the first heat dissipation hole 34, and the area of the first heat dissipation hole 34 is smaller than that of the second heat dissipation hole 35, so that the air in the electrical box 3 can perform sufficient heat exchange with the air in the second cavity 52.

As a settable mode, the electrical box 3 further includes a back plate disposed opposite to the door 32, the back plate is provided with at least two first heat dissipation holes 34 at positions corresponding to the heat sink 4, and the back plate is provided with at least two second heat dissipation holes 35 at lower sides of the first heat dissipation holes 34.

Specifically, the air in the first cavity 51 can enter the heat sink 4 in the electrical box 3 through the first heat dissipation hole 34, so that the heat sink 4 forms good air circulation, thereby exhausting hot air flow and introducing cold air flow in time, and the circulation of air flow is formed between the first heat dissipation hole 34 on the back plate and the first heat dissipation hole 34 of the door 32, thereby further enhancing the heat dissipation efficiency. The air in the first cavity 51 can enter the electrical box 3 through the second heat dissipation hole 35, and air flow circulation is formed between the second heat dissipation hole 35 of the back plate and the second heat dissipation hole 35 of the door body 32, so that the heat dissipation efficiency is further enhanced.

In this embodiment, the outdoor unit of the air conditioner includes a casing 1 defining an accommodating chamber 5, a partition plate 2 dividing the accommodating chamber 5 into a first chamber 51 in which a fan 511 is installed and a second chamber 52 in which a throttling device is installed, and a radiator 4; wherein, the partition board 2 is provided with a vent 53 communicating the first chamber 51 and the second chamber 52; one end of the radiator 4 is connected with a throttling device of the air-conditioning outdoor unit, and the other end of the radiator is communicated with a low-pressure air pipe of the air-conditioning outdoor unit; the heat sink 4 is located at the upper part inside the electronic box 3; the fan 511 operates, negative pressure is formed in the first cavity 51, when air in the second cavity 52 flows through the radiator 4, the heat is absorbed by the radiator 4 to form low-temperature air flow, the low-temperature air flow absorbs heat in the electric fitting box 3 and enters the first cavity 51 through the ventilation opening 53, and finally the air is discharged out of the casing 1 through the fan 511, and a heating element of the electric fitting box 3 is controlled within a reasonable temperature range, so that high-temperature aging of the heating element can be avoided, the use reliability is improved, and the operation reliability of the air conditioner outdoor unit is improved.

Example two

Referring to fig. 5-6, the second embodiment is the same as the first embodiment in principle, except that the mounting manner of the electrical box 3 and the position of the welding point 83 of the heat dissipation pipe 7 in the first embodiment are different.

The embodiment provides an air conditioner indoor unit 100, which comprises a casing 1, wherein a containing cavity 5 is defined in the casing 1.

The indoor unit 100 of the air conditioner further comprises a partition plate 2, the partition plate 2 divides the accommodating chamber 5 into a first chamber 51 for installing the fan 511 and a second chamber 52 for installing the throttling device, and the partition plate 2 is provided with a ventilation opening 53 for communicating the first chamber 51 with the second chamber 52.

The electrical box 3 is disposed at the ventilation opening 53, the electrical box 3 includes a heat dissipation tube 7, the heat dissipation tube 7 includes a first tube section 71 for flowing refrigerant and a third tube section 73 for flowing refrigerant, so that the refrigerant can form a circulation flow in the heat dissipation tube 7, and the refrigerant can continuously generate cold to cool the electrical box 3, thereby preventing the temperature of the electrical box 3 from being too high.

The communication pipe includes a first communication pipe 81 connected to the throttling device and a second communication pipe 82 communicated with a low pressure gas pipe of the outdoor unit of the air conditioner, the first communication pipe 81 is welded to the first pipe section 71, the second communication pipe 82 is welded to the third pipe section 73, the refrigerant flows into the first pipe section 71 from the first communication pipe 81, flows through the third pipe section 73 and then flows out from the second communication pipe 82, and the heat absorption process of the refrigerant is completed.

Specifically, the first connecting pipe 81 and the first pipe section 71 are welded to firmly connect the first connecting pipe 81 and the first pipe section 71, so that refrigerant leakage at the joint is avoided, and safe operation of the outdoor unit of the air conditioner is ensured.

The four-way valve 9 is arranged on the lower side of the electric box 3, the four-way valve 9 is used for switching the refrigeration cycle and the heating cycle of the indoor unit 100 of the air conditioner, the four-way valve 9 is provided with four valve ports, the connection between the valve ports can be adjusted according to the refrigeration or heating requirement of the air conditioner, and the operation is simple and convenient.

The position of the welding spot 83 where the first communication pipe 81 and the first pipe section 71 are welded and the position of the welding spot 83 where the second communication pipe 82 and the third pipe section 73 are welded are respectively arranged between the four-way valve 9 and the electrical box 3, so that collision between the four-way valve 9 or the electrical box 3 when the first communication pipe 81 and the first pipe section 71 are welded and collision between the second communication pipe 82 and the third communication pipe are avoided. Because the throttling device, the compressor 521 and the refrigerant pipeline are arranged on the lower side of the four-way valve 9, the welding point 83 is positioned between the four-way valve 9 and the electric box 3, and the throttling device, the compressor 521 and the refrigerant pipeline are prevented from being collided during welding. The four-way valve 9, the throttling device, the compressor 521 and the refrigerant pipeline are surrounded by soundproof cotton sleeves, and the soundproof cotton sleeves are positioned between the four-way valve 9 and the electric fitting box 3 to avoid burning or damage caused by high temperature during welding.

As a settable mode, the four-way valve 9 includes a cylindrical valve body 91, and the welding point 83 is located on the upper side of the valve body 91 and on the lower side of the electrical box 3, so as to avoid burning the side surfaces of the valve body 91 and the electrical box 3 during welding.

As a configurable manner, the heat dissipation pipe 7 includes a first pipe section 71, a second pipe section 72 and a third pipe section 73 which are connected in sequence, wherein the first pipe section 71 and the third pipe section 73 are located on the same side of the second pipe section 72, the refrigerant can sequentially flow through the first pipe section 71, the second pipe section 72 and the third pipe section 73 and circularly flow in the heat dissipation pipe 7, the second pipe section 72 is arc-shaped or U-shaped, so that the flow resistance of the refrigerant is reduced, and the first pipe section 71 and the third pipe section 73 are arranged in parallel, so that the installation of the heat dissipation pipe 7 is more beautiful, and the refrigerant flows more orderly.

As a configurable mode, the electrical component box 3 further includes a heat dissipation block 10, a groove for containing flowing refrigerant is formed in the heat dissipation block 10, and the groove is respectively communicated with the first pipe section 71 and the third pipe section 73, so that the refrigerant enters the groove from the first pipe section 71 and then flows out of the groove from the third pipe section 73.

As one configuration, the first pipe segment 71 includes a first horizontal pipe and a first vertical pipe connected to the first horizontal pipe, and the first vertical pipe extends in a direction toward the lower side plate of the outdoor unit. The included angle between the first longitudinal pipe and the normal direction of the lower side plate of the air conditioner outdoor unit is A, and A is more than or equal to 13 degrees and less than or equal to 15 degrees.

As a configurable manner, the third pipe segment 73 includes a third horizontal pipe and a third vertical pipe connected to the third horizontal pipe, the third vertical pipe extends toward the lower side plate of the outdoor unit, an included angle between the third vertical pipe and the normal direction of the lower side plate of the outdoor unit is B, and B is greater than or equal to 13 ° and less than or equal to 15 °.

Optionally, the heat dissipation pipe 7 includes a first pipe section 71, a second pipe section 72 and a third pipe section 73 which are connected in sequence, and the length of the heat dissipation pipe 7 is C, and C is greater than or equal to 690mm and less than or equal to 700 mm.

As a settable mode, the indoor unit 100 of the air conditioner further includes a compressor 521 disposed on the lower side of the electrical box 3, a refrigerant pipeline is connected between the compressor 521, the four-way valve 9 and the throttling device, sound insulation cotton sleeves are respectively surrounded on the outer sides of the refrigerant pipeline, the sound insulation cotton sleeves are respectively surrounded on the outer sides of the compressor 521, the four-way valve 9 and the throttling device, the sound insulation cotton sleeves can isolate noise, and prevent the dissipation of the cooling capacity or the heat capacity of the refrigerant, thereby improving the operation efficiency of the outdoor unit of the air conditioner.

As a settable mode, the electrical component box 3 is horizontally arranged at the ventilation opening 53, the electrical component box 3 is square, the largest side surface of the electrical component box 3 faces the lower side plate of the air conditioner outdoor unit, the electrical component box 3 comprises a circuit board arranged on the upper side surface, and the circuit board extends along the left and right direction. Optionally, the heat dissipation tube 7 is disposed on the circuit board of the electrical box 3 to cool the circuit board.

As a settable mode, the right side surface of the electrical box 3 is provided with a through hole, the first pipe section 71 and the third pipe section 73 are respectively arranged in the through hole in a penetrating way, and the electrical box 3, the first pipe section 71 and the third pipe section 73 are preassembled into a whole, so that the installation is convenient, and the installation steps are reduced.

As an installation manner, the first communication pipe 81 and the second communication pipe 82 extend toward the upper side plate of the outdoor unit, and the welding point 83 is located at the upper end of the first communication pipe 81 and the second communication pipe 82.

EXAMPLE III

Referring to fig. 7 to 12, the third embodiment is the same as the first and second embodiments in principle, and the difference is that the structure of the heat sink 4 in the third embodiment is different from that in the first and second embodiments.

The embodiment provides an outdoor unit of an air conditioner, which comprises a casing 1, wherein the casing 1 defines an accommodating cavity 5, the indoor unit 100 of the air conditioner further comprises a partition plate 2, the accommodating cavity 5 is divided into a first cavity 51 for installing a fan 511 and a second cavity 52 for installing a throttling device by the partition plate 2, and a ventilation opening 53 for communicating the first cavity 51 with the second cavity 52 is formed in the partition plate 2. The containing cavity 5 is internally provided with the electric box 3, and the electric box 3 is arranged at the ventilation opening 53.

The heat sink 4 is located in the accommodating cavity 5, and the heat sink 4 is used for absorbing heat of the electrical box 3. What can set up, radiator 4 is located the inside of electrical box 3, can be quick with the heat transfer of electrical box 3. The heat sink 4 may be disposed adjacent to the left, right, upper, and lower sides of the exterior of the electronic box 3.

The radiator 4 includes a radiating block 10 and a radiating pipe 7. At least two threaded holes with internal threads are formed in the radiating block 10, the radiating pipe 7 comprises a first pipe section 71, a second pipe section 72 and a third pipe section 73 which are sequentially connected, external threads are respectively arranged on the first pipe section 71 and the third pipe section 73, the first pipe section 71 and the third pipe section 73 are in threaded connection in the threaded holes, the first pipe section 71 and the third pipe section 73 are firmly connected in the radiating block 10, the first pipe section 71 is connected with a throttling device of an air conditioner outdoor unit, the third pipe section 73 is communicated with a low-pressure air pipe of the air conditioner outdoor unit, and a refrigerant flows through the radiating pipe 7 and absorbs heat, so that the electric box 3 is cooled.

Specifically, when the first pipe section 71 and the third pipe section 73 are screwed in the threaded holes, the contact area of the first pipe section 71 and the third pipe section 73 is enlarged due to the internal threads and the contact area of the first pipe section 71 and the third pipe section 73 is enlarged due to the external threads, so that the contact area of the first pipe section 71 and the third pipe section 73 is increased when the first pipe section 71 and the third pipe section 73 are connected with the threaded holes, and the heat exchange rate between the first pipe section 71 and the heat dissipation block 10 is increased.

As a settable mode, the second pipe segment 72 is a circular arc-shaped pipe extending in a direction away from the heat dissipation block 10, so that resistance to flowing of the refrigerant is reduced, and heat exchange is enhanced, the second pipe segment 72 is respectively welded with the first pipe segment 71 and the third pipe segment 73, the refrigerant flows through the first pipe segment 71, the second pipe segment 72 and the third pipe segment 73 in sequence, and flows in the heat dissipation pipe 7 in a circulating manner, so that heat dissipation of the electric fitting box 3 is realized.

As a settable mode, the threaded holes penetrate through two ends of the radiating block 10 which are distributed along the extending direction of the threaded holes, on one hand, the first pipe section 71 and the third pipe section 73 are convenient to mount in the threaded holes, on the other hand, the threaded holes are long, and heat exchange with the first pipe section 71 and the third pipe section 73 is facilitated.

As a settable mode, the threaded holes are linear, the first pipe section 71 and the third pipe section 73 are both linear, machining is convenient, the first pipe section 71 and the third pipe section 73 can be rotatably installed in the threaded holes, and installation is very simple and convenient.

As a settable manner, two adjacent threaded holes are arranged in parallel, so that the first pipe section 71 and the third pipe section 73 are arranged in parallel in the radiating block 10, the installation of the radiating pipe 7 is more beautiful, and the cold quantity distribution of the refrigerant is more even, which is beneficial to heat absorption.

As an optional manner, the number of the threaded holes is two, the threaded holes include a first threaded hole 101 and a second threaded hole 102, the first threaded hole 101 is provided with the first pipe section 71, the second threaded hole 102 is provided with the third pipe section 73, the diameter of the first threaded hole 101 is matched with the diameter of the first pipe section 71, so that the first pipe section 71 is firmly arranged in the first threaded hole 101, the diameter of the second threaded hole 102 is matched with the diameter of the third pipe section 73, and the third pipe section 73 is firmly arranged in the second threaded hole 102.

As a settable mode, the length of the pipe section with the external threads distributed on the first pipe section 71 is A, the length of the threaded hole is C, and C is less than or equal to A, so that the first pipe section 71 can conveniently rotate to enter the threaded hole.

As a settable mode, the length of the pipe section with the external threads distributed on the third pipe section 73 is B, and C is less than or equal to B, so that the third pipe section 73 can conveniently rotate to enter the threaded hole.

As a settable mode, the outdoor unit of an air conditioner further includes:

a partition plate 2 dividing the housing chamber 5 into a first chamber 51 in which the blower 511 is installed and a second chamber 52 in which the electronic component box 3 is installed; the partition plate 2 is provided with an air vent 53 communicating the first chamber 51 and the second chamber 52, and the heat sink 4 is provided in the second chamber 52.

As one way of providing, the corners of the adjacent sides of the heat dissipation block 10 are formed with smooth rounded corners to avoid cutting when the first and third pipe sections 71, 73 are mounted to the threaded holes.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. Air condensing units, its characterized in that it includes:

a housing defining an accommodating chamber;

the baffle plate divides the accommodating cavity into a first cavity for installing the fan and a second cavity for installing the throttling device; the partition plate is provided with a vent hole for communicating the first cavity with the second cavity, and the partition plate extends to a direction far away from the fan at the vent hole to form a boss;

the electric box comprises a PCB board provided with a heating element, and the PCB board extends along the up-down direction;

the radiator is arranged in the electric packaging box and located on the upper portion of the electric packaging box, one end of the radiator is connected with the throttling device, and the other end of the radiator is communicated with a low-pressure air pipe of the air conditioner outdoor unit.

2. The outdoor unit of claim 1, wherein the casing includes a front panel, the partition plate includes a first plate body disposed opposite to the front panel and a second plate body coupled to the front panel, and the projection is formed by extending a coupling portion of the first plate body and the second plate body.

3. The outdoor unit of claim 2, wherein the electric box includes a door body on a side surface facing away from the fan, a lower side of the door body extends outward to form a first projection, the first projection is provided with a screw hole, and the first projection is connected to the boss by a screw.

4. The outdoor unit of claim 3, wherein the first plate has a flange formed at a side thereof adjacent to the door body, the flange having a screw hole, and the flange being connected to the door body by a screw.

5. The outdoor unit of claim 2, wherein the electric cassette further comprises a box body, the box body extends outwards towards the side of the front panel to form a second protruding portion, the second plate body extends to form a third protruding portion towards the side wall close to the box body, and the second protruding portion and the third protruding portion are matched and connected through a screw.

6. The outdoor unit of claim 2, wherein the outdoor unit comprises a heat exchanger including a first heat exchanging part disposed opposite to the front panel, and a space is formed between a side of the electronic cassette remote from the front panel and the first heat exchanging part.

7. The outdoor unit of claim 5, wherein the sidewall of the second plate body adjacent to the box body is a first sidewall, the first sidewall extends from the third projection in a direction away from the box body to form a first step portion, and a gap is formed between the first step portion and the box body.

8. The outdoor unit of claim 5, wherein the second plate body is provided with a ventilation hole at a lower side of the third projection.

9. The outdoor unit of claim 3, wherein the door body has at least two first heat dissipation holes corresponding to the heat sink, the door body has at least two second heat dissipation holes under the first heat dissipation holes, and the area of the first heat dissipation holes is smaller than that of the second heat dissipation holes.

10. The outdoor unit of claim 9, wherein the electric box further comprises a back plate disposed opposite to the door, the back plate having at least two first heat dissipation holes at positions corresponding to the heat sink, and the back plate having at least two second heat dissipation holes at lower sides of the first heat dissipation holes.

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