CN217519966U

CN217519966U - Outdoor machine of air conditioner

Info

Publication number: CN217519966U
Application number: CN202220741278.4U
Authority: CN
Inventors: 孙合庆; 逯成林
Original assignee: Hisense Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-09-30
Anticipated expiration: 2032-03-31

Abstract

The utility model provides an air conditioner outdoor unit, which comprises a casing; electrically packaging the box; the electronic box includes: the box body is internally provided with a partition plate which divides the interior of the box body into a main cavity and a side cavity, and a first connecting pipe and a second connecting pipe are arranged in the side cavity; the PCB is provided with a heating element and arranged in the main cavity; the heat dissipation plate is fixed on one side of the heating element, which is far away from the PCB; a heat radiation pipe fixed on the heat radiation plate and arranged in the main cavity; one end of the radiating pipe is connected with the first connecting pipe and is connected with a throttling device of the air conditioner outdoor unit through the first connecting pipe, and the other end of the radiating pipe is connected with the second connecting pipe and is communicated with a low-pressure air pipe of the air conditioner outdoor unit through the second connecting pipe. The utility model provides an air condensing units utilizes the refrigerant to absorb the heat that the denso box released, and the heating element of electricity dress box is controlled at reasonable temperature range, can avoid its high temperature ageing, and then improves the reliability in utilization, improves air condensing units's operational reliability.

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 less prone to heat dissipation, 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 utility model discloses.

SUMMERY OF THE UTILITY MODEL

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 electric box is arranged in the accommodating cavity; the electronic box includes:

the box body is internally provided with a partition plate, the partition plate divides the inner part of the box body into a main cavity and a side cavity, and a first connecting pipe and a second connecting pipe are arranged in the side cavity;

the PCB is provided with a heating element and is arranged in the main cavity;

the heat dissipation plate is fixed on one side of the heating element, which is far away from the PCB;

the radiating pipe is fixed on the radiating plate and is arranged in the main cavity;

one end of the radiating pipe is connected with the first connecting pipe and is connected with a throttling device of the air-conditioning outdoor unit through the first connecting pipe, and the other end of the radiating pipe is connected with the second connecting pipe and is communicated with a low-pressure air pipe of the air-conditioning outdoor unit through the second connecting pipe.

The application discloses outdoor unit of air conditioner utilizes the refrigerant to absorb the heat that the denso box released, and the heating element of electrical packaging box is controlled at reasonable temperature range, can avoid its high temperature ageing, and then improves the reliability of use, improves outdoor unit of air conditioner's operational reliability.

In some embodiments of the present application, the partition plate is provided with a connection port, and the connection port connects the main cavity and the side cavity; one end of the radiating pipe is connected with the first connecting pipe at the connecting port, and the other end of the radiating pipe is connected with the second connecting pipe at the connecting port.

In some embodiments of the present application, the heat sink plate is disposed in the main chamber.

In some embodiments of the present application, the heat dissipating plate has a groove therein, and the heat dissipating pipe is installed in the groove.

In some embodiments of the present application, the pipe section in which the radiating pipe is installed in the groove corresponds to the cross section of the groove.

In some embodiments of the present application, an open end of the groove is located on a side of the heat dissipation plate away from the heat generating element.

In some embodiments of the present application, a component holder is fixed to the PCB, and the heat generating component is mounted on the component holder.

In some embodiments of the present application, the PCB, the component holder, the heat generating component, and the heat dissipating plate are connected by a first fixing member.

In some embodiments of the present application, two grooves are formed on the heat dissipation plate; the radiating pipe comprises a first pipe section, a second pipe section and a third pipe section which are connected in sequence; wherein the first tube section and the third tube section are located on the same side of the second tube section; the first pipe section is arranged in one groove; the third pipe section is arranged in the other groove.

In some embodiments of the present application, the first pipe section is connected to the first connection pipe, and the second pipe section is connected to the second connection pipe.

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

Drawings

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

fig. 2 is a schematic structural view of an electrical fitting box of an outdoor unit of an air conditioner according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of the electric box of the outdoor unit of the air conditioner according to the embodiment of the present invention;

fig. 4 is a schematic view illustrating a mounting position of a radiator of an outdoor unit of an air conditioner according to an embodiment of the present invention;

fig. 5 is a schematic view of internal components of an electrical box of an outdoor unit of an air conditioner according to an embodiment of the present invention;

fig. 6 is a schematic view illustrating a disassembled inner component of an electrical fitting box of an outdoor unit of an air conditioner according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a central line of a radiator of an outdoor unit of an air conditioner according to an embodiment of the present invention;

fig. 8 is a schematic view illustrating a heat dissipating plate and a heat dissipating pipe of an outdoor unit of an air conditioner according to an embodiment of the present invention;

fig. 9 is a schematic view illustrating another perspective view of a heat dissipating plate of an outdoor unit of an air conditioner according to an embodiment of the present invention.

In the above figures: a fan 10; a compressor 11; a separator 12; a vent 121; a first chamber 13; a second chamber 14; an electronic box 2; a radiating pipe 3; a first heat sink 4; a second heat sink 5; a groove 6; a heat dissipation plate 7; a partition plate 8; a heat sink 9; a box body 21; a box cover 22; the accommodation chamber 23; a main chamber 231; a side cavity 232; a first tube section 31; a second tube segment 32; a third tube section 33; a first connecting pipe 34; a second connection pipe 35; a notch 70; a PCB 71; a heating element 72; an element holder 73; a first fixing member 81; a connection port 82; a hook 83.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the present application, 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 can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

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

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

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the outdoor unit of the air conditioner includes a casing defining a receiving chamber for enclosing a body of the outdoor unit of the air conditioner and protecting internal devices thereof; the housing includes a front panel (not shown) having an outlet. A partition plate 12 is arranged in the accommodating cavity, and the accommodating cavity is divided into a first cavity 13 and a second cavity 14 by the partition plate 12; wherein, first chamber 13 is linked together with the air outlet that sets up on the front panel, and installs fan 10 in the first chamber 13, installs compressor 11 and electrical box 2 in the second chamber 14.

As shown in fig. 2 to 9, the electrical box 2 includes a box body 21, a box cover 22, a PCB 71, a heat dissipation plate 7 and a heat dissipation pipe 3; the cover 22 cooperates with the body 21 to define a receiving cavity 23. Wherein, a PCB 71 is fixed on the box cover 22, and a heating element 72 is arranged on the PCB 71; the heat dissipation plate 7 is fixed on one side of the heating element 72 away from the PCB 71; the radiating pipe 3 is arranged on the radiating plate 7; one end of the radiating pipe 3 is connected with a throttling device of the air conditioner outdoor unit, and the other end of the radiating pipe is communicated with a low-pressure air pipe of the air conditioner outdoor unit; the refrigerant absorbs heat when flowing through the heat dissipation pipe 3, and absorbs heat released by the electric fitting box 2, so as to realize heat dissipation of the electric fitting box 2. In this embodiment, the heat dissipating plate 7 is tightly attached to the heating element 72, and the heat dissipating tube 3 is tightly attached to the heat dissipating plate 7, thereby effectively improving the heat dissipating efficiency.

Be provided with division board 8 in box body 21, division board 8 separates the inside chamber 23 that holds of box body 21 for main cavity 231 and side chamber 232, and PCB board 71, component support 73, heating element 72, heating panel 7 and cooling tube 3 all set up in main cavity 231, and PCB board 71, component support 73, heating element 72, heating panel 7 and cooling tube 3 assemble in main cavity 231. The element support 73, the heating element 72, the heat radiating plate 7 and the heat radiating pipe 3 are mounted on one side of the PCB.

The partition plate 8 is provided with a connection port 82, and the main chamber 231 and the side chamber 232 communicate with each other through the connection port 82. The first pipe segment 31 and the second pipe segment 32 of the radiating pipe 3 are both disposed in the main chamber 231, the first connecting pipe 34 and the second connecting pipe 35 are both disposed in the side chamber 232, the first pipe segment 31 is connected to the first connecting pipe 34 through the connection port 82, the first connecting pipe 34 is connected to the throttling device through the side chamber 232, the second pipe segment 32 is connected to the second connecting pipe 35 through the connection port 82, and the second connecting pipe 35 is connected to the low pressure gas pipe of the outdoor unit of the air conditioner through the side chamber 232.

The arrangement of the partition plate 8 can separate the first connecting pipe 34 and the second connecting pipe 35, the PCB 71 and the heating element 72 into two chambers, so as to avoid the vibration of the refrigerant in the heat radiating pipe during flowing and avoid influencing the normal operation of the PCB 71 and the heating element 72; meanwhile, the cooling medium is filled in the radiating pipe 3, so that the cooling medium has the risk of water leakage and electric leakage caused by condensation generated around the radiating pipe during heat exchange, the first connecting pipe 34 and the second connecting pipe 35, the PCB 71 and the heating element 72 are separated in two cavities, the problem of water leakage and electric leakage in the electric box 2 can be avoided, and the safety of the electric box 2 is improved.

Be provided with trip 83 on the division board 8, trip 83 joint is on PCB board 71 keep away from heating element 72's side to prevent PCB board 71 drunkenness, make PCB board 71 connect more stable.

In addition, in the present embodiment, the heat dissipation plate 7 and the heat dissipation pipe 3 are connected to form the heat sink 9 integrally by pressing; the radiator 9 composed of the radiating plate 7 and the radiating pipe 3 is used as an assembly and is directly used for installation and use, installation is convenient, and assembly efficiency of an installer is improved.

In this embodiment, the heat dissipating plate 7 has a groove 6 for installing the heat dissipating tube 3, and the cross section of the groove 6 is an arc shape, and the arc shape is a major arc. Optionally, the section of the radiating pipe 3 located in the groove 6 is consistent with the cross section of the groove 6. The contact area of the radiating plate 7 and the radiating pipe 3 is increased by the arrangement, and the radiating efficiency is improved. When the radiator 9 is manufactured, the formed radiating pipe 3 is arranged in the groove 6 of the radiating plate 7, and then the radiating pipe 3 is fixedly connected with the radiating plate 7 in a stamping mode to form a radiator 9 assembly.

In this embodiment, the open end of the groove 6 is located on the side of the heat dissipation plate 7 away from the heating element 72; the radiating pipe 3 is located at a side of the radiating plate 7 remote from the heating element 72. The heat generated by the heat generating element 72 is transferred to the heat dissipating plate 7, the heat dissipating plate 7 transfers heat to the heat dissipating pipe 3, and the refrigerant in the heat dissipating pipe 3 absorbs heat to dissipate heat from the heat dissipating plate 7.

In this embodiment, the heat dissipation plate 7 is provided with a plurality of heat dissipation fins including the first heat dissipation fin 4 and the second heat dissipation fin 5 on the side away from the heating element 72. The first radiating fins 4 are disposed at opposite sides of the groove 6 of the radiating plate 7, the cutting grooves 70 penetrating the radiating plate 7 are disposed between the adjacent first radiating fins 4, and the plurality of cutting grooves 70 are spaced apart from each other and arranged along the central axis of the radiating pipe 3, i.e., along the extending direction of the groove 6. Meanwhile, the adjacent first radiating fins 4 are arranged at intervals and arranged along the extending direction of the groove 6, so that the radiating area of the radiating plate 7 can be effectively increased, and the radiating efficiency is improved. It may be provided that the first heat sink 4 is not in contact with the heat generating element 72, that is, the portion of the heat sink 7 in contact with the heat generating element 72 is a solid structure, so as to improve the heat dissipation efficiency of the heat generating element 72 to the heat sink 7.

The second radiating fins 5 are arranged between the two grooves 6 on the side, far away from the heating element 72, of the radiating plate 7, the adjacent second radiating fins 5 are arranged at intervals, and the plurality of second radiating fins 5 are arranged at intervals from one side close to one groove 6 to the direction close to the other groove 6, so that the radiating area of the radiating plate 7 can be effectively increased, and the radiating efficiency is improved. It may be provided that the second heat sink 5 is not in contact with the heat generating element 72, that is, the portion of the heat sink 7 in contact with the heat generating element 72 is a solid structure, so as to improve the heat dissipation efficiency of the heat generating element 72 to the heat sink 7.

In one embodiment, a component holder 73 is fixed to the PCB 71, and the heating component 72 is mounted on the component holder 73. What can set up, component support 73 sets up to fretwork form, makes component support 73 can effectively support heating element 72 on the one hand, and on the other hand does benefit to the heat dissipation, avoids the heat to gather around heating element 72 and weakens the radiating effect and leads to heating element 72 to damage.

In this embodiment, the heat dissipating plate 7 and the heat dissipating pipe 3 are integrally connected to form the heat sink 9 by pressing, and the PCB 71, the element holder 73, the heating element 72, and the heat dissipating plate 7 are connected by the first fixing member 81. The first fixing member 81 penetrates the PCB 71, the component holder 73, the heating component 72, and the heat sink 7 to be integrally connected. In this embodiment, the first fixing member 81 is provided as a screw having a length sufficient to pass through the above components.

As an implementation mode, two grooves 6 are arranged on the heat dissipation plate 7; the radiating pipe 3 comprises a first pipe section 31, a second pipe section 32 and a third pipe section 33 which are connected in sequence; the second tube section 32 is mounted in one of the recesses 6; the third tube section 33 is mounted in the other recess 6. Wherein the first pipe section 31 and the third pipe section 33 are located on the same side of the second pipe section 32; optionally, two grooves 6 are arranged in parallel and extend through opposite ends of the heat sink 7. Set up a plurality of recesses 6 above and increased the length of cooling tube 3 and the area of contact of cooling tube 3 with heating panel 7, improve the radiating efficiency.

In one embodiment, the first tube section 31, the second tube section 32, and the third tube section 33 are integrally formed.

The embodiment provides an air conditioner outdoor unit, which comprises a machine shell for limiting a containing cavity and an electric box arranged in the containing cavity; the electric fitting box comprises a box body, a PCB (printed circuit board) with a heating element arranged in the main cavity, a heat dissipation plate fixed on one side of the heating element away from the PCB, and a heat dissipation pipe fixed on the heat dissipation plate, wherein the box body is divided into a main cavity and a side cavity by a partition plate; a plurality of radiating fins are arranged on one side of the radiating plate, which is far away from the heating element; and a first connecting pipe and a second connecting pipe are arranged in the side cavity, one end of the radiating pipe is connected with the first connecting pipe and is connected with a throttling device of the air conditioner outdoor unit through the first connecting pipe, and the other end of the radiating pipe is connected with the second connecting pipe and is communicated with a low-pressure air pipe of the air conditioner outdoor unit through the second connecting pipe. The heat released by the heating element is transferred to the heat dissipation plate, and the heat dissipation plate transfers the heat to the heat dissipation pipe and is absorbed by the refrigerant in the heat dissipation pipe; the air condensing units of this embodiment utilizes the refrigerant to absorb the heat that the denso box released, and the heating element of electrical box is controlled in reasonable temperature range, can avoid its high temperature ageing, and then improves the reliability in utilization, improves air condensing units's operational reliability. And the heating panel and cooling tube pass through the punching press formation radiator subassembly in this embodiment, can directly take the use when the equipment is used, and easy to assemble improves the installation effectiveness.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

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

a housing defining an accommodating chamber;

the PCB is provided with a heating element and is arranged in the main cavity;

a heat dissipation pipe fixed to the heat dissipation plate and disposed in the main chamber;

2. An outdoor unit of an air conditioner according to claim 1, wherein: a connecting port is arranged on the partition plate and is used for communicating the main cavity with the side cavity; one end of the radiating pipe is connected with the first connecting pipe at the connecting port, and the other end of the radiating pipe is connected with the second connecting pipe at the connecting port.

3. An outdoor unit of an air conditioner according to claim 1, wherein: the partition board is provided with a clamping hook, and the clamping hook is clamped on the side face, far away from the heating element, of the PCB.

4. An outdoor unit of an air conditioner according to claim 1, wherein: the radiating plate is provided with a groove, and the radiating pipe is arranged in the groove.

5. An outdoor unit of an air conditioner according to claim 4, wherein: the sections of the radiating pipes arranged in the grooves are consistent with the cross sections of the grooves.

6. An outdoor unit of an air conditioner according to claim 4, wherein: the opening end of the groove is positioned on one side, away from the heating element, of the heat dissipation plate.

7. An outdoor unit of an air conditioner according to claim 1, wherein: an element support is fixed on the PCB, and the heating element is arranged on the element support.

8. An outdoor unit of an air conditioner according to claim 7, wherein: the PCB, the element support, the heating element and the heat dissipation plate are connected through a first fixing piece.

9. An outdoor unit of an air conditioner according to any one of claims 1 to 8, wherein: the heat dissipation plate is provided with two grooves;

the radiating pipe comprises a first pipe section, a second pipe section and a third pipe section which are sequentially connected; wherein the first tube section and the third tube section are located on the same side of the second tube section;

the first pipe section is arranged in one groove; the third pipe section is arranged in the other groove.

10. An outdoor unit of an air conditioner according to claim 9, wherein: the first pipe section is connected with the first connecting pipe, and the second pipe section is connected with the second connecting pipe.