CN219876542U

CN219876542U - Electrical apparatus box structure and outdoor air conditioner thereof

Info

Publication number: CN219876542U
Application number: CN202320728644.7U
Authority: CN
Inventors: 丁一健; 黄鉴良; 石道永; 朱策; 金龙
Original assignee: Zhuhai Aden Technology Co ltd
Current assignee: Zhuhai Aden Technology Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-10-20
Anticipated expiration: 2033-04-04

Abstract

The utility model discloses an electric appliance box structure and an outdoor air conditioner thereof, comprising an electric appliance box body with a containing cavity, a PCB main board, components, a radiator and a radiating air duct, wherein the PCB main board is arranged on the electric appliance box body in a flush manner at an opening corresponding to the containing cavity; the radiator is inserted into one side end part of the electric box body and is used for enabling the top end surface to contact with a part of components which generate heat on the PCB main board so as to cool and radiate heat; the heat dissipation air duct is arranged on the electric box body beside the radiator and forms at least one air flow channel which is led in from the bottom side surface of the electric box body and led out from the side surface of the electric box body close to the radiator and used for cooling and radiating the grid air at the lower part of the radiator.

Description

Electrical apparatus box structure and outdoor air conditioner thereof

[ field of technology ]

The utility model relates to the technical field of household appliances, in particular to an electric box structure and an outdoor air conditioner thereof.

[ background Art ]

The air conditioner generally comprises an outdoor unit positioned outdoors and an indoor unit positioned indoors, wherein an electric box is arranged in the outdoor unit and used for accommodating a PCB main board and components of the air conditioner, the temperature of a PCB main board chip in the electric box is easy to be too high when the air conditioner operates at high temperature, a heat dissipation air duct and a radiator are usually arranged on the electric box for reducing the temperature of the PCB main board chip, the outlet end of the heat dissipation air duct is close to an axial flow fan of the outdoor unit, and the flow speed of air flow in the heat dissipation channel is accelerated under the drive of the axial flow fan so as to realize the rapid heat dissipation of the radiator.

However, in the actual use environment of users, particularly in rainy days, as the air outlet of the air outlet cavity of the outdoor unit of the air conditioner cannot be shielded, rainwater water drops are often arranged on the fan blades of the axial fan in the outdoor unit, when the fan blades rotate, the water drops enter the electric box through the heat dissipation air duct under the action of the rotating force of the fan blades, so that great potential safety hazards exist; if water enters the electrical box to contact the PCB main board and components, short circuit and even fire can be caused, and serious safety accidents are caused; therefore, how to improve the waterproof reliability of the electrical box in design is one of the most important problems.

[ utility model ]

The utility model provides an electric appliance box structure and an air conditioner thereof, which can change the running track of water drops, effectively prevent the water drops from being sprayed into a containing cavity of an electric appliance box body and effectively improve the use safety of the air conditioner.

The technical scheme adopted by the utility model is as follows:

an electrical box structure, comprising:

the electrical box body comprises a containing cavity;

the PCB main board is arranged at the opening corresponding to the accommodating cavity on the electrical box body in a flush manner, and all the components are arranged on the lower side of the PCB main board and extend into the accommodating cavity;

the radiator is inserted into one side end part of the electrical box body, is used for enabling the top end surface to contact with a part of components which generate heat on the PCB main board to perform air cooling and heat dissipation, and the top end of the radiator faces the lower connecting space to be isolated and sealed;

the heat dissipation air duct is arranged on the electric box body beside the radiator, and forms at least one air flow channel which is led in from the bottom side surface of the electric box body and led out from the side surface of the electric box body close to the radiator and used for air-cooling heat dissipation of the grille at the lower part of the radiator, and the air flow channel is mutually isolated and separated from the accommodating cavity on the electric box body.

Preferably, the heat dissipation air duct is further concavely provided with an introduction groove for introducing air flow and mutually isolating and separating from the accommodating cavity, a separation plate arranged on the electric appliance box body is formed between the introduction groove and the side surface of the radiator, and at least one air flow channel is arranged on the separation plate.

Preferably, a plurality of airflow channels which are uniformly distributed at intervals and are rectangular are formed in the partition plate along the width direction of the electrical box body.

Preferably, the two sides of the guiding groove are also provided with a stepped guiding opening.

Preferably, the guide groove is further provided with rib plates at intervals along the width direction of the electrical box body, wherein one end of each rib plate is connected to the side face of the partition plate, and the rib plates are used for increasing the space strength of the groove body.

Preferably, the lower side of one side end part of the electrical box body is provided with a flow guiding heat dissipation groove which is used for embedding the radiator plug bush and circumferentially wrapping the top side main body of the radiator in a downward extending mode, and the top side end face sealing cover of the radiator seals a heat conducting opening communicated between the flow guiding heat dissipation groove and the accommodating cavity so as to prevent rainwater from entering the accommodating cavity of the electrical box body from bottom to top.

Preferably, the two ends of the diversion heat dissipation groove along the width direction of the electrical box body are respectively provided with a buckle limit head for limiting the buckle of the top side end face of the radiator embedded into the plug bush and relieving the connection pressure between the top side end face and the components on the PCB main board when the radiator is fixedly connected with the PCB main board through a screw.

The utility model provides an air condensing units, includes outer casing, heat exchanger, axial fan, baffle, compressor and electrical apparatus box structure, the baffle will outer casing inner space separates into air-out chamber a and working chamber b, heat exchanger with axial fan install in air-out chamber a, the compressor with electrical apparatus box structure main part install in the working chamber b, electrical apparatus box structure is foretell electrical apparatus box structure, and in the electrical apparatus box structure radiator and its corresponding some electrical apparatus box body are located in baffle one side air-out chamber a, the leading-in department of air current passageway is located on the heat dissipation wind channel in the working chamber b.

The beneficial effects of the utility model are as follows:

in the utility model, firstly, the top end of the radiator faces to the lower connecting space to be isolated and sealed; secondly, the heat dissipation wind channel sets up on the electrical apparatus box body of radiator side, and form a plurality of electric apparatus box body side that is led in by electrical apparatus box body bottom surface and follow the radiator and draw forth, be used for the radiating air current passageway of radiator lower part grid forced air cooling, because the air current passageway is isolated with the chamber that holds on the electrical apparatus box body each other, can change the orbit of drop like this, can effectively prevent under the rainy day environment axial fan blade drop of water sprays the chamber that holds of electrical apparatus box body through the heat dissipation wind channel in, effectively improve the waterproof reliability of electrical apparatus box.

[ description of the drawings ]

FIG. 1 is a schematic perspective view of the structure of an electrical box according to the present utility model;

FIG. 2 is a schematic view showing a sectional structure of the electrical box structure along a width direction in the present utility model;

fig. 3 is an enlarged schematic view of a portion a in fig. 2;

fig. 4 is an enlarged schematic view of the B part in fig. 2;

FIG. 5 is a schematic diagram of the assembly structure of a PCB motherboard, a heat sink and components on the electrical box structure of the present utility model;

FIG. 6 is a schematic top perspective view of the electrical box body of the electrical box structure according to the present utility model;

FIG. 7 is a schematic side perspective view of the electrical box body of the electrical box structure of the present utility model;

FIG. 8 is a schematic bottom perspective view of the electrical box body of the electrical box structure of the present utility model;

FIG. 9 is a schematic perspective view of the bottom surface of the electrical box body in the electrical box structure of the present utility model;

FIG. 10 is a schematic perspective view of the electrical box structure of the present utility model assembled on a partition;

fig. 11 is a schematic perspective view showing a structure of an electrical box mounted on an outdoor unit of an air conditioner according to the present utility model;

fig. 12 is a schematic diagram showing a front view of an electrical box structure assembled on an outdoor unit of an air conditioner according to the present utility model;

fig. 13 is a schematic cross-sectional view illustrating a structure in which an electrical box is installed in an outdoor unit of an air conditioner according to the present utility model;

fig. 14 is an enlarged schematic view of the C portion in fig. 13.

Reference numerals:

1. an electrical box structure; 10. an electrical box body; 11. a receiving chamber; 20. a PCB motherboard; 21. a component; 30. a heat sink; 300. a screw; 31. a diversion heat dissipation groove; 32. a heat conducting port; 33. a buckle limiting head; 40. a heat dissipation air duct; 41. an air flow channel; 42. an introduction groove; 420. an inlet; 43. a partition plate; 44. rib plates; 50. an outer case; 60. a heat exchanger; 70. an axial flow fan; 80. a partition plate; a. an air outlet cavity; b. a working chamber.

[ detailed description ] of the utility model

Technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

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

1-14, the electrical box structure comprises an electrical box body 10 with a containing cavity 11, a PCB main board 20, components 21, a radiator 30 and a radiating air duct 40, wherein the PCB main board 20 is flush-mounted on the electrical box body 10 at the corresponding opening of the containing cavity 11, and all the components 21 are arranged on the lower side of the PCB main board 20 and extend into the containing cavity 11; the radiator 30 is inserted into one side end of the electrical box body 10, and is used for contacting the top end face with the part 21 of the PCB main board 20 which emits heat to cool and dissipate heat, and the top end of the radiator 30 faces the lower connecting space to be isolated and sealed; the heat dissipation air duct 40 is disposed on the electrical box body 10 beside the radiator 30, and forms a plurality of air flow channels 41 led in from the bottom side of the electrical box body 10 and led out from the side of the electrical box body 10 adjacent to the radiator 30, for air-cooling the grille at the lower part of the radiator 30, and the air flow channels 41 are isolated from the accommodating cavity 11 on the electrical box body 10.

As shown in fig. 6 to 9, the heat dissipation air duct 40 is further provided with an introduction groove 42 concavely formed on the bottom surface of the electrical box body 10 for introducing air flow and isolated from the accommodating cavity 11, a separation plate 43 disposed on the electrical box body 10 is formed between the introduction groove 42 and the side surface of the heat sink 30, and a plurality of air flow channels 41 are formed on the separation plate 43. In this embodiment, a plurality of air flow passages 41 are formed in the partition plate 43 along the width direction of the electrical box body 10 at regular intervals and have a rectangular shape. Wherein, the two sides of the leading-in groove 42 are also provided with a step-shaped leading-in port 420, and two rib plates 44 with one end connected to the side surface of the isolation plate 43 and used for increasing the space strength of the groove body are also arranged in the leading-in groove 42 at intervals along the width direction of the electric box body 10.

As shown in fig. 2 to 9 and 14, a diversion and heat dissipation groove 31 for inserting and embedding the radiator 30 and circumferentially wrapping the main body of the top part of the radiator 30 is formed at the lower side of one side end of the electrical box body 10 in a downward extending manner, and a heat conduction opening 32 communicated between the diversion and heat dissipation groove 31 and the accommodating cavity 11 is sealed by a top end face 301 of the radiator 30, so that rainwater is effectively prevented from entering the accommodating cavity 11 of the electrical box body 10 from bottom to top. In this embodiment, two ends of the diversion and heat dissipation groove 31 along the width direction of the electrical box body 10 are respectively provided with a buckle limiting head 33 for limiting the buckle of the top side end face 301 of the heat sink 30 embedded in the plug, and for relieving the connection pressure between the top side end face 301 and the components 21 on the PCB main board 20 when the heat sink 30 is fixedly connected with the PCB main board 20 by the screw 300.

When the electrical box structure is installed in an outdoor unit of an air conditioner, as shown in fig. 10 to 14, the corresponding outdoor unit of the air conditioner can be used as an outdoor unit of a split type air conditioner. The outdoor unit of the air conditioner comprises an outer shell 50, a heat exchanger 60, an axial flow fan 70, a partition plate 80, a compressor (not shown in the figure) and an electric box structure 1, wherein the partition plate 80 divides the inner space of the outer shell into an air outlet cavity a and a working cavity b, the heat exchanger 60 and the axial flow fan 70 are arranged in the air outlet cavity a, the compressor and the electric box structure 1 are mainly arranged in the working cavity b, the radiator 30 and a part of the electric box body 10 corresponding to the radiator 30 in the electric box structure 1 are positioned in the air outlet cavity a at one side of the partition plate 80, and the inlet of an air flow channel 41 on a heat dissipation air duct 40 is positioned in the working cavity b; through the structural layout mode, in the embodiment of the utility model, the electric box structure can change the running track of the water drops, effectively prevent the water drops from being sprayed into the accommodating cavity of the electric box, and is beneficial to improving the quality and the use safety of the air conditioner.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "front", "rear", "top", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model.

The above embodiments are merely preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but all equivalent changes according to the shape, construction and principle of the present utility model are intended to be included in the scope of the present utility model.

Claims

1. An electrical box structure, comprising:

an electrical box body (10) comprising a containing cavity (11);

the PCB main board (20) and components (21), wherein the PCB main board (20) is flush and arranged at the opening corresponding to the accommodating cavity (11) on the electrical box body (10), and all the components (21) are arranged on the lower side of the PCB main board (20) and extend into the accommodating cavity (11);

the radiator (30) is inserted into one side end part of the electrical box body (10) and is used for enabling the top end surface to contact with a part of a component (21) on the PCB main board (20) which emits heat so as to cool and dissipate heat in an air way, and the top end of the radiator (30) faces to the lower connecting space to be isolated and sealed;

the heat dissipation air duct (40) is arranged on the electric box body (10) beside the radiator (30), and at least one air flow channel (41) which is led in from the bottom side surface of the electric box body (10) and led out from the side surface of the electric box body (10) adjacent to the radiator (30) and used for cooling and radiating air of the grille at the lower part of the radiator (30) is formed, and the air flow channel (41) and the accommodating cavity (11) on the electric box body (10) are isolated and separated from each other.

2. An electrical box structure according to claim 1, wherein: the heat dissipation air duct (40) is further provided with an introduction groove (42) which is used for introducing air flow and is mutually isolated and separated from the accommodating cavity (11) in a sunken mode on the bottom side face of the electric box body (10), a separation plate (43) which is arranged on the electric box body (10) is formed between the introduction groove (42) and the side face of the radiator (30), and at least one air flow channel (41) is arranged on the separation plate (43).

3. An electrical box structure according to claim 2, wherein: a plurality of airflow channels (41) which are uniformly distributed at intervals and are rectangular are formed in the isolating plate (43) along the width direction of the electrical box body (10).

4. An electrical box structure according to claim 2, wherein: both sides of the introduction groove (42) are also provided with a stepped introduction port (420).

5. An electrical box structure according to claim 2, wherein: and rib plates (44) with one ends connected to the side surfaces of the isolation plates (43) and used for increasing the space strength of the tank body are further arranged in the guide-in groove (42) at intervals along the width direction of the electrical box body (10).

6. An electrical box structure according to claim 1, wherein: the electric appliance box is characterized in that a diversion radiating groove (31) used for embedding the plug bush of the radiator (30) and circumferentially wrapping the main body of the top part of the radiator (30) is formed in the lower side of one side end part of the electric appliance box body (10) in a downward extending mode, and a top end face (301) of the radiator (30) is sealed by a sealing cover, and a heat conducting opening (32) communicated between the diversion radiating groove (31) and the accommodating cavity (11) is formed.

7. An electrical box structure according to claim 6, wherein: the electric appliance box is characterized in that the two ends of the diversion heat dissipation groove (31) along the width direction of the electric appliance box body (10) are respectively provided with a clamping limiting head (33) for limiting and slowing down the clamping of the top side end face (301) of the radiator (30) embedded in the plug bush, and the clamping limiting head (33) is used for connecting pressure between the top side end face (301) and the components (21) on the PCB main board (20) when the radiator (30) is fixedly connected with the PCB main board (20) through screws.

8. The utility model provides an air condensing units, includes outer casing (50), heat exchanger (60), axial fan (70), baffle (80), compressor and electrical apparatus box structure (1), baffle (80) will outer casing inner space separates into air-out chamber a and working chamber b, heat exchanger (60) with axial fan (70) install in the air-out chamber a, the compressor with electrical apparatus box structure (1) main part install in the working chamber b, its characterized in that: the electrical box structure (1) is as claimed in any one of claims 1 to 7, the radiator (30) and a part of the electrical box body (10) corresponding to the radiator are located in the air outlet cavity a at one side of the partition plate (80) in the electrical box structure (1), and the leading-in position of the air flow channel (41) on the heat dissipation air duct (40) is located in the working cavity b.