CN217900027U - Ceiling machine - Google Patents

Abstract

The utility model relates to a ceiling machine, belonging to the technical field of air conditioners, wherein the ceiling machine comprises a shell, an electrical box, a radiator, a channel part and a fan, and the shell is provided with an air inlet; the electric appliance box is arranged on the shell, a cavity is arranged in the electric appliance box, and the electric appliance box is provided with heat dissipation holes; the electric control board is arranged in the cavity; the radiator is arranged on the electric control board, and the mounting position of the radiator corresponds to the heat dissipation holes; the interior of the channel part is provided with a hollow structure, the channel part is sleeved on the radiator, one side of the channel part along the installation direction of the radiator is connected with the top of the electrical box, the hollow structure is communicated with the heat dissipation holes, and the other side of the channel part along the installation direction of the radiator is connected with the electric control board; the fan is arranged in the shell, an air suction opening of the fan is communicated with the heat dissipation holes, the fan runs, and air flow in the hollow structure flows through the radiator in an accelerating mode and is discharged through the heat dissipation holes. The utility model provides a smallpox machine radiating efficiency is high, the radiating effect is good.

Description

Ceiling machine

Technical Field

The utility model belongs to the air conditioner field especially relates to a smallpox machine.

Background

At present, the ceiling fan increasingly uses an external driving fan, and an Intelligent Power Module (IPM) for driving the fan is integrated on a control board in an electrical box. Usually, the intelligent power module during operation generates heat very greatly, and, power along with external drive fan is bigger and bigger, the power of IPM module is also higher and higher, therefore, the IPM module has all designed solitary radiator and has dispeled the heat, at present, the electrical apparatus box is in order to satisfy safety requirement such as burning test, design for enclosed construction usually, the radiator setting of IPM module and IPM is inside the electrical apparatus box, because air can't circulate with outside air in the confined electrical apparatus box, therefore, the radiating effect of radiator is relatively poor in the electrical apparatus box, can't satisfy the heat dissipation requirement of IPM module.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the correlation technique, the utility model provides a smallpox machine to overcome the not enough that exists among the correlation technique.

The utility model provides a ceiling machine, include:

the air inlet is formed in the shell;

the electric box is arranged on the shell, a cavity is arranged in the electric box, and the electric box is provided with a heat dissipation hole communicated with the air inlet;

the electric control plate is arranged in the cavity;

the radiator is arranged on the electric control board, and the installation position of the radiator corresponds to the heat dissipation holes;

the interior of the channel component is provided with a hollow structure, the channel component is sleeved on the radiator, one side of the channel component along the installation direction of the radiator is connected with the top of the electrical box, the hollow structure is communicated with the heat dissipation holes, and the other side of the channel component along the installation direction of the radiator is connected with the electric control board;

the fan is arranged inside the shell, an air suction opening of the fan is communicated with the heat dissipation holes, the fan runs, and air flow in the hollow structure flows through the radiator in an accelerated mode and is discharged through the heat dissipation holes.

According to the technical scheme, the heat dissipation holes are formed in the electric appliance box, so that heat generated by the work of the power module can be discharged out of the electric appliance box, and the heat dissipation efficiency is accelerated; the channel component is arranged, and the radiating holes and the cavity in the electrical box are isolated by the channel component, so that the sealing performance of the electrical box structure is ensured, and the electrical box meets the requirements of a combustion test; through setting up fan inlet scoop and louvre intercommunication, utilize fan work induced draft characteristic, make and form negative pressure around the fan inlet scoop, make the air current in the hollow structure can follow the louvre and be inhaled in the fan for air current flow speed in the hollow structure, thereby increase the radiating efficiency.

In some embodiments, a mounting rack is further arranged in the cavity, the mounting rack is connected to the electrical box, the electronic control board is mounted on the mounting rack, the radiator is mounted on one side, away from the mounting rack, of the electronic control board, and one end, away from the heat dissipation holes, of the channel part is connected to one side, on which the radiator is mounted, of the electronic control board.

According to the technical scheme, the mounting frame is used for mounting the electric control board, so that the firmness of the electric control board in the electric box is improved; the electric appliance box is connected with the electric control board through the channel component, and one end of the hollow structure, far away from the heat dissipation holes, is sealed by the electric control board, so that the hollow structure is isolated from the inner cavity of the electric appliance box.

In some embodiments, the electrical box comprises a cover body and a box body, wherein the cover body and the box body define a cavity together, the heat dissipation holes are formed in the cover body, the box body is provided with air vents, and the mounting frame is connected to the box body.

In some of these embodiments, the channel member comprises:

a connection part connected with the cover body;

and the through part is sleeved on the radiator, one end of the through part is connected with the connecting part, and the other end of the through part is connected with the electric control board.

In some embodiments, the two longitudinal ends of the box body are respectively provided with an extension part, the box body is connected with the cover body through the extension parts, one end of each extension part is connected with the box body, and the other end of each extension part extends in the direction away from the box body.

This technical scheme is through setting up the extension to the box body is connected with the lid, simplifies the box body structure.

In some of these embodiments, the mounting bracket includes bottom plate and the mounting bracket lateral wall that sets up around the bottom plate, and the bottom plate defines the mounting bracket installation cavity with the mounting bracket lateral wall jointly, and automatically controlled board is installed in the mounting bracket installation cavity.

This technical scheme is through setting up the mounting bracket installation cavity to the automatically controlled board of installation.

In some of these embodiments, be equipped with a plurality of mounting bracket stoppers in the mounting bracket installation cavity, a plurality of mounting bracket stoppers are connected around automatically controlled board, and the lateral wall of the relative both sides of mounting bracket installation cavity is equipped with the joint post, and with joint post joint.

In some embodiments, a plurality of shell limiting blocks are arranged at the joint of the shell and the electrical box, a shell installation cavity is defined by the shell limiting blocks, and the electrical box is installed in the shell installation cavity.

This technical scheme utilizes the shell stopper to inject and forms the shell installation cavity through setting up the shell stopper to inject the mounted position of electrical apparatus box and shell.

In some embodiments, a lower concave part is arranged at the joint of the outer shell and the electrical box, the electrical box is provided with a convex part corresponding to the lower concave part, and when the electrical box is installed on the outer shell, the convex part is positioned in the lower concave part.

This technical scheme utilizes the cooperation of the two through setting up concave part and bellying down to make the mounted position of quick location electrical apparatus box and shell.

In some embodiments, a fan installation cavity is arranged inside the shell, the open end of the fan installation cavity faces to one side, connected with the electrical box, of the shell, the fan is installed in the fan installation cavity, and the air suction opening of the fan faces to the open end of the fan installation cavity.

According to the technical scheme, the fan is installed through the fan installation cavity, so that the firmness and reliability of connection between the fan and the shell are improved; the inlet scoop through setting up the fan is towards the one side that shell and electrical apparatus box are connected to make the air current can get into the fan fast in the electrical apparatus box, increase the air current circulation efficiency.

Based on the technical scheme, the ceiling machine in the embodiment of the utility model isolates the radiator from the inside of the electric appliance box by arranging the hollow structure, and the heat is dissipated by utilizing the air flow of the hollow structure with the air suction characteristic of the fan, so that the heat dissipation efficiency is high, the heat dissipation effect is good, and the resource utilization rate is high; and the electrical box has simple structure and good sealing performance, and meets the requirements of combustion tests.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the ceiling machine of the present invention;

fig. 2 is a schematic structural view of an unassembled electrical box in an embodiment of the ceiling machine of the present invention;

fig. 3 is a top view of an unassembled electrical box in an embodiment of the ceiling machine of the present invention;

fig. 4 is a schematic structural diagram of an electrical box in an embodiment of the ceiling fan of the present invention;

fig. 5 is an exploded view of an electrical box in an embodiment of the ceiling fan of the present invention;

fig. 6 is a schematic structural view of an electrical box cover in an embodiment of the ceiling fan of the present invention;

fig. 7 is a schematic structural view of the assembly of the electrical box cover and the channel component in one embodiment of the ceiling machine of the present invention;

fig. 8 is a schematic structural view of the assembly of the box body of the electrical box with the channel part, the electric control board and the mounting frame in one embodiment of the ceiling machine of the present invention;

fig. 9 is a schematic structural diagram of an electrical box body in an embodiment of the ceiling fan of the present invention;

fig. 10 is a schematic structural view of an electrical box body at another angle in an embodiment of the ceiling fan of the present invention;

fig. 11 is a schematic structural view of an electrical box cover, a channel part, an electric control board and a mounting rack in an embodiment of the ceiling machine of the present invention;

fig. 12 is a schematic structural view illustrating the assembly of the heat sink, the electric control board, the power module and the mounting bracket according to an embodiment of the ceiling fan of the present invention;

fig. 13 is a schematic structural view of the assembly of the passage member, the electric control board, the power module and the heat sink in one embodiment of the ceiling fan of the present invention;

fig. 14 is a schematic structural view of a mounting frame in an embodiment of the ceiling fan of the present invention;

fig. 15 is a schematic structural view of another angle of the mounting frame in an embodiment of the ceiling fan of the present invention;

fig. 16 is a schematic structural view of a passage member in an embodiment of the ceiling fan of the present invention;

fig. 17 is a schematic structural view of another angle of the channel member in one embodiment of the ceiling fan of the present invention.

In the figure:

1. a housing; 2. an electrical box; 3. a fan; 4. a channel member; 5. a power module; 6. an electric control board; 7. a heat sink; 8. a mounting frame;

11. a limiting block; 12. a lower recess; 13. a housing mounting cavity; 14. a fan mounting cavity;

21. a cover body; 22. a box body;

211. heat dissipation holes;

221. a cavity; 222. an extension portion; 223. a support portion; 224. a boss portion; 225. a second recess; 226. a first recess; 227. a vent;

41. a through part; 42. a bending part; 43. a connecting portion; 44. a hollow structure;

81. a base plate; 82. a movable clamping column; 83. fixing the clamping column; 84. a mounting frame side wall; 85. mounting frame limiting blocks; 86. and (4) connecting the blocks.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1-17, in an exemplary embodiment of the ceiling machine of the present invention, the ceiling machine includes a housing 1, an electrical box 2, an electrical control board 6, a channel component 4, a power module 5, a heat sink 7 and a fan 3, the electrical box 2 is mounted on the housing 1, a cavity 221 is formed inside the electrical box 2, and the electrical box 2 is provided with a heat dissipation hole 211; the electric control board 6 is arranged in the cavity 221; the channel component 4 is also arranged in the cavity 221, the channel component 4 is connected to the electrical box 2, the interior of the channel component 4 is provided with a hollow structure 44, the hollow structure 44 is isolated from the cavity 221, the hollow structure 44 is communicated with the heat dissipation hole 211, and the cavity 211 is not communicated with the heat dissipation hole 211; the power module 5 is arranged in the cavity 221 and close to the channel part 4, so that heat generated by the power module 5 is transferred to the channel part 4, and the power module 5 is electrically connected with the electric control board 6; the channel component 4 is sleeved on the periphery of the radiator 7, the radiator 7 is arranged in the hollow structure 44, and the radiator 7 is used for radiating heat generated by the work of the power module 5; one side of the channel component 4 along the installation direction of the radiator 7 is connected with the top of the electrical box 2, the hollow structure 44 is communicated with the heat radiation hole 211, and the other side of the channel component 4 along the installation direction of the radiator 7 is connected with the electric control board 6; the fan 4 is arranged in the shell 1, and an air suction port of the fan 4 is communicated with the heat dissipation hole 211; the fan 4 operates to accelerate the air flow in the hollow structure 44 through the radiator 7 and the passage member 4, and to discharge the hollow structure 44 through the heat radiation holes 211.

As shown in fig. 1-3, a plurality of housing limiting blocks 11 are arranged at the joint of the housing 1 and the electrical box 2, the housing limiting blocks 11 jointly define a housing installation cavity 13, and the electrical box 2 is installed in the housing installation cavity 13; as shown in fig. 2, a lower concave portion 12 is arranged at the connection position of the housing 1 and the electrical box 2, the lower concave portion 12 is located in the housing installation cavity 13 and is communicated with the housing installation cavity 13, the electrical box 2 is provided with a convex portion 224 corresponding to the lower concave portion 12, when the electrical box 2 is installed in the housing 1, the convex portion 224 is located in the lower concave portion 12, and the convex portion 224 is matched with the lower concave portion 12 to position the electrical box 2, so that the electrical box 2 is conveniently and quickly connected with the housing 1; as shown in fig. 3, a fan installation cavity 14 is formed inside the housing 1, the fan 3 is installed in the fan installation cavity 14, the fan installation cavity 14 is a structure with one end open and the other end closed, the open end of the fan installation cavity 14 is an air inlet of the housing 1, and an air suction inlet of the fan 3 is communicated with the air inlet; fan 3 and power module 5 electric connection, fan 3 also with automatically controlled board 6 electric connection, power module 5 and automatically controlled board 6 control fan 3's operating condition to make the better work of fan 3, power module 5 and automatically controlled board 6 belong to prior art to fan 3's control, and it is no longer repeated here.

As shown in fig. 4 and 5, the ceiling machine includes a cover 21 and a box 22, where the cover 21 and the box 22 together define a cavity 221, the electronic control board 6, the power module 5, the heat sink 7 and the channel component 4 are disposed in the cavity 221, and the cover 21 is used to close the cavity 221 so as to protect the electronic control board 6, the power module 5 and the heat sink 7 in the cavity 221; one end of the channel component 4 is connected with the cover body 21, and the other end of the channel component 4 is connected with the box body 22; as shown in fig. 6-10, the cover 21 has heat dissipation holes 221, the case 22 is connected to the housing 1, the case 22 has air vents 227, the air vents 227 are in a closed state when the internal and external air pressures of the electrical box 2 are the same, and when the internal and external air pressures of the electrical box 2 are different, air at a side with a high air pressure enters a side with a low air pressure through the air vents 227 to balance the internal and external air pressures of the electrical box 2, and the air vents 227 belong to the prior art and are not described herein again.

As shown in fig. 8 and 9, the two longitudinal ends of the box body 22 are provided with extension portions 222, the extension portions 222 are provided with box body connection holes, the cover body 21 is provided with cover body connection holes corresponding to the positions of the box body connection holes, and the connection fasteners of the electrical box 2 and the cover body 21 sequentially pass through the cover body connection holes and the box body connection holes to connect the cover body 21 and the box body 22; the extending part 222 is arranged to facilitate the connection between the cover 21 and the box 22, the extending part 222 is formed by bending the side wall of the box 22, and the extending part 222 is formed by bending the box 22 to simplify the structure of the electrical box 2; in some embodiments, the extension 222 may also be welded to the cartridge body 22.

As shown in fig. 8, a convex portion 224 is arranged at one end of the box body 22 connected with the housing 1, and the convex portion 224 is matched with the concave portion 12 of the housing 1 to position the mounting position of the box body 22 in the housing mounting cavity 13, so as to quickly realize the connection between the electrical box 2 and the housing 1; one side that electrical apparatus box 2 is connected with shell 1 still is equipped with supporting part 223, electrical apparatus box 2 passes through supporting part 223 and is connected with shell 1, the effect of supporting part 223 is to reduce the area of electrical apparatus box 2 and shell 1 junction, though in order to satisfy burning test requirement, higher requirement has been proposed to the closure of electrical apparatus box 2 structure, but there is not special requirement to electrical apparatus box 2 structure appearance, therefore, in order to reduce the manufacturing cost of electrical apparatus box 2, improve the production efficiency of electrical apparatus box 2, electrical apparatus box 2 does not have high demand for product uniformity in actual production, the appearance structure of different electrical apparatus box 2 probably has the error, if electrical apparatus box 2 and shell 1 junction area is great, then electrical apparatus box 2 and shell 1 junction need higher plane degree, in order to guarantee electrical apparatus box 2 and shell 1's joint strength, this will increase the requirement to electrical apparatus box 2 structure overall dimension, and reduce electrical apparatus box 2 and shell 1 junction area through setting up supporting part 223, then reduced the requirement to the whole plane degree in box 22 bottom, only need to keep good plane degree in supporting part can be in order to guarantee electrical apparatus box 2 and shell 1's joint strength. Although the pressure at the joint can be increased by reducing the area of the joint of the electrical box 2 and the housing 1, the electrical box 2, the electric control board 6, the power module 5, the channel part 4, the heat sink 7 and the mounting rack 8 which are placed in the cavity 221 have simple structures and light weight, and the pressure generated at the joint of the electrical box 2 and the housing 1 is small, so that the electrical box 2 and the housing 1 cannot be greatly damaged by reducing the area of the joint of the electrical box 2 and the housing 1. The height of the support portion 223 is adapted to the height of the protruding portion 224 so that the electrical box 2 is connected to the housing 1 in a horizontal state, although the protruding portion 224 is provided in the lower recess 12. As shown in fig. 9, the supporting portion 223 is formed by stamping the bottom sidewall of the electrical box 2, a first concave portion 226 corresponding to the supporting portion 223 is disposed on one side of the electrical box 2 facing the cavity 221, the protruding portion 224 is also formed by stamping the bottom sidewall of the electrical box 2, a second concave portion 225 corresponding to the protruding portion 224 is disposed on one side of the electrical box 2 facing the cavity 221, and the supporting portion 223 and the protruding portion 224 are formed by stamping, so that the manufacturing process can be simplified, the manufacturing cost can be reduced, and the area of the cavity 221 can be increased.

As shown in fig. 7, 11 and 12, the power module 5 is integrated with the electronic control board 6, the heat sink 7 is mounted on the electronic control board 6 and disposed near the power module 5 to dissipate heat from the power module 5, heat generated by the operation of the power module 5 is transferred to the heat sink 7, the temperature of the heat sink 7 is also increased, the heat sink 7 is sleeved inside the channel member 4, the channel member 4 is internally provided with the hollow structure 44, the hollow structure 44 is a through cavity with openings at two ends, one end of the channel member 4 is connected with the cover 21, the other end of the channel member 4 is connected with the electronic control board 6 to isolate the hollow structure 44 from the cavity 221, and a heat dissipation hole 211 is disposed at a connection between the channel member 4 and the cover 21 to enable air flow in the hollow structure 44 to be discharged out of the hollow structure 44 from the heat dissipation hole 211, so as to increase the heat dissipation efficiency of the heat sink 7.

As shown in fig. 5 and 6, a mounting rack 8 is further provided in the cavity 221 of the electrical box 2 to mount and fix the electrical control board 6, so as to prevent the electrical control board 6 from moving in a dislocation manner and affecting the operation of the ceiling machine; mounting bracket 8 is connected in box body 22, and the inside mounting bracket installation cavity that is equipped with of mounting bracket 8, and automatically controlled board 6 is installed in the mounting bracket installation cavity, and the lateral wall of the vertical relative both sides in mounting bracket installation cavity is equipped with the joint post, automatically controlled board 6 and joint post joint.

As shown in fig. 13-14, the mount 8 includes a bottom plate 81 and a mount sidewall 84 disposed around the bottom plate 81, a connection block 86 is disposed at a connection position of the bottom plate 81 and the mount sidewall 84, and the connection block 86 is connected to the box body 22 through a fastener; the bottom plate 81 and the mounting frame side wall 84 jointly define a mounting frame installation cavity, a plurality of mounting frame limiting blocks 85 are arranged in the mounting frame installation cavity, the mounting frame limiting blocks 85 are connected to the periphery of the electric control board 6 to limit the installation position of the electric control board 6 in the mounting frame installation cavity, and meanwhile, the mounting frame side wall 84 plays a role in limiting the plane motion of the electric control board 6; the vertical relative both sides in mounting bracket installation cavity are equipped with the joint post to the motion of automatically controlled board 6 in vertical direction is restricted.

As shown in fig. 13, the clamping posts are disposed on two longitudinally opposite sides of the bottom plate 81, the clamping posts are provided with clamping portions for clamping the electric control board 6 to prevent the electric control board 6 from moving in the vertical direction, and in order to facilitate taking and placing of the electric control board 6, the size of the mounting frame mounting cavity is larger than that of the electric control board 6, but in order to limit the movement of the electric control board 6, the size of an opening defined by a plurality of clamping posts is smaller than that of the electric control board 6, so that the clamping post on one side of the bottom plate 81 is a movable clamping post 82, the clamping post on the other side is a fixed clamping post 83, and the clamping post 82 is moved by external force to increase or decrease the size of the opening defined by the clamping posts, thereby facilitating the dismounting and mounting of the electric control board 6; as shown in fig. 13, the mounting bracket lateral wall 84 fixed connection of side is corresponded with bottom plate 81 to fixed joint post 83, be equipped with a plurality of disconnected openings between the mounting bracket lateral wall 84 with activity joint post 82 homonymy, activity joint post 82 sets up in disconnected opening department, the one end and the bottom plate 81 fixed connection of activity joint post 82, the vertical upwards extension of the other end of activity joint post 82, extension end through exogenic action activity joint post 82, can increase or reduce the opening size that activity joint post 82 extended end and fixed joint post 83 formed, thereby be convenient for install or dismantle automatically controlled board 6.

As shown in fig. 4, 10, 15 and 16, the channel member 4 is disposed in the cavity 221, one end of the channel member 4 is connected to the cover 21, the other end of the channel member 4 is connected to the box 22 through the electronic control board 6, the channel member 4 includes a connection portion 43 and a through portion 41, the connection portion 43 is connected to one side of the cover 21 facing the box 22, the through portion 41 is sleeved on the periphery of the heat sink 7, one end of the through portion 41 is connected to one end of the connection portion 43 away from the cover 21, the other end of the through portion 31 is connected to the electronic control board 6, the through portion 41 is formed by bending a metal plate, the metal plate is bent and connected to each other at two ends thereof, so that the metal plate surrounds the through portion 41 and forms the hollow structure 44, and the bent portions 42 are formed at the connection positions of the two ends of the metal plate, so as to increase the sealing performance of the hollow structure 44 inside the channel member 4; hollow structure 44's one end and louvre 211 intercommunication, hollow structure 44's the other end is connected with automatically controlled board 6, and automatically controlled board 6 is kept away from hollow structure 44 the one end of louvre 211 and is sealed, makes hollow structure 44 and cavity 221 mutual isolation to when making electrical apparatus box 2 carry out combustion test, channel part 4 can the separation protect the flame that the burning produced, makes flame can not enter into hollow structure 44, guarantees the fire prevention effect. As shown in fig. 15 and 16, channel member 4 is connected to the side of cover 21 facing case 22 via connecting portion 43, connecting portion 43 and bent portion 42 are also made of metal, and one end of channel member 4 remote from cover 21 is connected to case 22. Because the channel part 4 is a metal piece and the power module 5 is arranged close to the channel part 4, heat generated by the power module 5 during working can be transferred to the channel part 4, and the channel part 4 can obstruct flame generated in a combustion test of the electrical box 2, increase the whole heat dissipation area and accelerate the heat dissipation efficiency.

The working principle of the ceiling machine is as follows: when the fan 3 works, air is sucked, so that negative pressure is formed around the air suction opening of the fan 3, air in the hollow structure 44 is sucked into the fan 3 from the heat dissipation holes 211, the hollow structure 44 also becomes negative pressure, air flow outside the electrical box 2 enters the interior of the electrical box 2 and the hollow structure 44 from the air vent 227, and the air flow forms circulation inside and outside the electrical box 2, so that heat generated by the power module 5 is discharged from the heat dissipation holes 211 more quickly. Although the electric control board 6 closes the end of the hollow structure 44 away from the heat dissipation hole 211, there is still a gap through which the air flow can pass at the connection between the channel member 4 and the electric control board 6 and the cover 21, and the air flow enters the hollow structure 44 from the inner cavity 211 of the electrical box 2 through the connection gap. The heat generated by the power module 5 is transferred to the channel part 4 in addition to the heat sink 7, and the air flow circulation in the hollow structure 44 can increase the heat convection efficiency of the air flow with the channel part 4 and the heat sink 7, so that the heat generated by the power module 5 can be exhausted from the heat dissipation holes 211 as soon as possible.

The ceiling machine has high working reliability and safety, high heat dissipation efficiency, good heat dissipation effect and high resource utilization rate; and the electrical box 2 has good structural closure and protection, and meets the requirements of combustion tests. The negative pressure generated by the work of the fan 3 is utilized to increase the airflow circulation efficiency in the hollow structure 44, so that the overall heat dissipation efficiency and the heat dissipation effect are improved; the heat dissipation hole 211 is isolated from the cavity 221 inside the electrical box 2 through the hollow structure 44, so that the electrical box 2 is structurally sealed, and the fireproof effect is ensured.

Finally, it should be noted that: the embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the technical solution of the present invention, the present invention should be covered by the technical solution of the present invention.

Claims (10)

1. A ceiling mountable machine, comprising:

the air conditioner comprises a shell, wherein an air inlet is formed in the shell;

the electrical box is arranged on the shell, a cavity is arranged in the electrical box, and the electrical box is provided with a heat dissipation hole communicated with the air inlet;

the electric control plate is arranged in the cavity;

the radiator is arranged on the electric control board, and the installation position of the radiator corresponds to the heat dissipation hole;

the passage component is internally provided with a hollow structure, the passage component is sleeved on the radiator, one side of the passage component along the installation direction of the radiator is connected with the top of the electrical box, the hollow structure is communicated with the heat dissipation hole, and the other side of the passage component along the installation direction of the radiator is connected with the electric control board;

the fan is arranged inside the shell, an air suction opening of the fan is communicated with the heat dissipation holes, the fan runs, and air flow in the hollow structure flows through the radiator in an accelerated mode and is discharged through the heat dissipation holes.

2. The ceiling machine of claim 1, wherein a mounting bracket is further disposed in the cavity, the mounting bracket is connected to the electrical box, the electrical control board is mounted to the mounting bracket, the heat sink is mounted to a side of the electrical control board away from the mounting bracket, and an end of the channel member away from the heat dissipation hole is connected to a side of the electrical control board where the heat sink is mounted.

3. The ceiling machine according to claim 2, wherein the electrical box comprises a cover and a box, the cover and the box together define the cavity, the heat dissipation holes are formed in the cover, the box is provided with air vents, and the mounting frame is connected to the box.

4. A ceiling machine as claimed in claim 3, characterised in that the channel means comprises:

a connecting portion connected to the cover;

the through part is sleeved on the radiator, one end of the through part is connected with the connecting part, and the other end of the through part is connected with the electric control board.

5. A ceiling machine according to claim 3, characterized in that the longitudinal ends of the box body are respectively provided with an extending part, the box body is connected with the cover body through the extending parts, one end of each extending part is connected with the box body, and the other end of each extending part extends in the direction away from the box body.

6. A ceiling machine as claimed in claim 2, wherein the mounting bracket comprises a base plate and mounting bracket side walls arranged around the base plate, the base plate and the mounting bracket side walls together define a mounting bracket mounting cavity, and the electronic control board is mounted in the mounting bracket mounting cavity.

7. A ceiling machine according to claim 6, characterized in that a plurality of mounting bracket limiting blocks are arranged in the mounting bracket mounting cavity, the mounting bracket limiting blocks are connected to the periphery of the electric control board, and the side walls of the two opposite sides of the mounting bracket mounting cavity are provided with clamping columns which are clamped with the clamping columns.

8. The ceiling machine according to claim 1, wherein a plurality of housing stoppers are arranged at the joint of the housing and the electrical box, the housing stoppers together define a housing installation cavity, and the electrical box is installed in the housing installation cavity.

9. A ceiling machine as claimed in claim 8, wherein a recess is provided at the junction of the housing and the electrical box, and the electrical box is provided with a raised portion corresponding to the recess, the raised portion being located in the recess when the electrical box is mounted to the housing.

10. The ceiling machine according to claim 1, wherein a fan installation cavity is arranged inside the casing, an opening end of the fan installation cavity faces to a side, connected with the electrical box, of the casing, the fan is installed in the fan installation cavity, and an air suction opening of the fan faces to the opening end of the fan installation cavity.

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