CN114158238A

CN114158238A - Inverter heat dissipation equipment for closed environment

Info

Publication number: CN114158238A
Application number: CN202111491258.2A
Authority: CN
Inventors: 汪宏策
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-03-08

Abstract

The invention belongs to the technical field of inverter heat dissipation, and particularly relates to inverter heat dissipation equipment for a closed environment. In addition, the wind direction of the tunnel is fully utilized to enable the heat dissipation area to form three areas with different temperatures; in the heat dissipation process, hot air flows firstly pass through the heat dissipation area with the highest temperature, then pass through the heat dissipation area with the middle temperature height, and finally carry out heat dissipation in the heat dissipation area with the lowest temperature, and the better heat dissipation effect can be achieved through the heat dissipation sequence, namely, the countercurrent heat exchange.

Description

Inverter heat dissipation equipment for closed environment

Technical Field

The invention belongs to the technical field of inverter heat dissipation, and particularly relates to inverter heat dissipation equipment for a closed environment.

Background

Along with the development of cities, subways are more and more widely constructed and used, electronic control of tunnels in the tunnels is more and more, and inverters are commonly used in the electronic control.

At present the dc-to-ac converter all miniaturizes, and the heat dissipation generally adopts the fan to carry out the heat dissipation of initiatively, but because of the fan is bulky, the during operation can produce the noise, inhales the dust simultaneously, influences inside radiating effect.

In addition, because the external inverter needs pass through the bolt fastening, use for a long time easily and become loose, influence the heat dissipation.

Conventionally, in order to prevent dust from entering, a thermally conductive adhesive is added between the case and the inverter, but this method has a limited heat dissipation capability.

The present invention is directed to an inverter heat sink apparatus for a closed environment that solves the above problems.

Disclosure of Invention

In order to achieve the purpose, the invention adopts the following technical scheme:

an inverter heat dissipation device for a closed environment comprises a shell, a shell cover, a bracket, a fixed shell, an inverter, an internal fan, an external fan and a motor, wherein the shell is of a cylindrical structure, the front end of the shell is an open end, and a plurality of fins are uniformly arranged on the outer circular surface and the rear end surface of the shell; the shell cover is detachably mounted at the opening end of the shell and is of a conical structure, and fins which are uniformly distributed are mounted on the outer conical surface of the shell cover; and a bracket is arranged on the outer side of the shell.

A fixed shell is arranged in the shell, the fixed shell is of a cylindrical structure, the front end of the fixed shell is an opening end, and the rear end of the fixed shell is provided with an air inlet; a plurality of fins are uniformly arranged on the outer circular surface and the rear end surface of the fixed shell in the circumferential direction, half of the fins on the outer circular surface of the fixed shell are fixedly connected with the inner wall surface of the shell, and the fins fixed with the shell and the fins not fixed are distributed at intervals; the inverter is detachably mounted inside the stationary case.

The motor is arranged on the inner end surface of the shell, an output shaft of the motor penetrates through the air inlet hole to be positioned in the fixed shell, and the built-in fan is fixedly arranged on the output shaft of the motor; an external fan is installed at the rear end of the shell.

As a preferable scheme, a limit ring is fixedly installed on the outer wall surface of the opening end of the shell, a threaded hole is formed in the front side, located on the limit ring, of the outer wall surface of the opening end of the shell, a first tightening threaded hole is formed in the shell cover, the shell cover is installed at the front end of the shell through a second tightening screw, and the second tightening screw penetrates through the first tightening threaded hole in the shell cover to be in threaded fit with the threaded hole in the shell; and a sealing ring is arranged between the inner end surface of the outer shell cover and the front end of the outer shell.

Preferably, the bracket is detachably mounted on the outer wall surface of the housing through a first tightening screw.

Preferably, the air inlet end of the built-in fan is one end close to the inner end face of the fixed shell, and the air outlet is positioned on the outer circular face of the fan shell; the inner end face of the fixed shell is fixedly provided with a flow guide structure, the flow guide structure is composed of a plurality of layers of arc-shaped flow guide sheets, and a flow guide channel is formed between every two adjacent flow guide sheets; the inner end of the flow guide structure is aligned with the air outlet of the built-in fan.

As a preferable scheme, a plurality of first strip-shaped ribs are uniformly arranged on the outer circular surface and the rear end surface of the shell; a plurality of conical ribs are uniformly arranged on the outer conical surface of the shell cover in the circumferential direction; a plurality of second strip-shaped fins are uniformly and fixedly arranged on the outer circular surface of the fixed shell in the circumferential direction, a plurality of vortex-shaped fins are uniformly and fixedly arranged on the rear end surface of the fixed shell in the circumferential direction, the vortex-shaped fins on the rear end surface of the fixed shell form a plurality of vortex-shaped channels, and the inner ends of the vortex-shaped channels are communicated with the air inlet; the front end of the fixed shell is nested with the conical heat conducting fins, and after the outer shell cover is installed, the inner conical surface of the outer shell cover is tightly attached to the outer conical surface of the conical heat conducting fins.

Preferably, the rear end of the housing is fixedly provided with a mounting shell, and the mounting shell is provided with a first shaft hole which is through from inside to outside.

The rear end face of the shell is provided with a third shaft hole and a fourth shaft hole, the outer circular surface of the fourth shaft hole is provided with a mounting groove, and the rear end face of the shell is provided with a rotating groove.

The rear end of the motor shell is fixedly provided with a rotating mounting piece, and the motor is rotatably mounted on the inner end face of the shell through the matching of the rotating mounting piece and the fourth shaft hole; the outer circular surface of the rotating installation part is fixedly provided with a fixing plate, the fixing plate is positioned in the installation groove, a spring is arranged between the fixing plate and the installation groove, and the spring is a compression spring and has pre-pressure.

The first rotating shaft is rotatably arranged on the mounting shell through the first shaft hole, and the external fan is arranged on the first rotating shaft; a sixth gear is fixedly arranged at one end of the first rotating shaft, which is positioned at the outer side of the mounting shell; the second rotating shaft is rotatably arranged on the mounting shell through a third shaft hole, the fifth gear is rotatably arranged on the second rotating shaft, one end of the fifth gear is fixedly provided with a fixing ring, and the fixing ring is rotatably arranged in the rotating groove; the fifth gear is meshed with the sixth gear; the other end of the fifth gear is provided with end face teeth; the sixth gear is provided with end face teeth, is fixedly arranged on the second rotating shaft and is positioned in the mounting shell; the sixth gear is matched with the fifth gear; one end of the second rotating shaft, which is positioned in the shell, is fixedly provided with a rotating ring, a rotating sleeve is rotatably arranged in the rotating ring, one end of a pull rod is arranged on the rotating sleeve in a spherical hinge mode, and the other end of the pull rod is arranged on the motor shell in a spherical hinge mode; the second gear is provided with end face teeth, the second gear is fixedly arranged on the second rotating shaft, the fixed support is fixedly arranged in the shell, the fourth gear is rotatably arranged on the fixed support, the fourth gear is provided with the end face teeth, and the fourth gear is matched with the second gear; the third gear is rotatably arranged on the fixed support, the third gear is meshed with the fourth gear, the first gear is fixedly arranged on the output shaft of the motor, and the first gear is meshed with the third gear.

Preferably, a sliding seal is installed between the second rotating shaft and the housing.

As a preferred scheme, a fixing support plate is fixedly mounted on each of the four side walls in the fixing shell, four connecting plates are fixedly mounted on the four outer walls of the inverter, the four connecting plates correspond to the four fixing support plates one by one and are penetrated by fixing bolts, and four nuts are mounted on the four fixing bolts.

Compared with the prior art, the invention has the advantages that:

1. the conical heat conducting fin is arranged at the front end of the fixed shell, so that the heat radiating area can be increased through the conical heat conducting fin, and hot air can be easily absorbed for heat radiation.

2. In the invention, the gas in the shell adopts internal circulation in the heat dissipation process, and the design of a special internal circulation structure ensures that the heat dissipation efficiency is high and the heat dissipation effect is good. In addition, the wind direction of the tunnel is fully utilized to enable the heat dissipation area to form three areas with different temperatures; in the heat dissipation process, hot air flows firstly pass through the heat dissipation area with the highest temperature, then pass through the heat dissipation area with the middle temperature height, and finally carry out heat dissipation in the heat dissipation area with the lowest temperature, and the better heat dissipation effect can be achieved through the heat dissipation sequence, namely, the countercurrent heat exchange.

3. When the motor normally works, the built-in fan and the external fan are driven and separated, and the second rotating shaft arranged on the shell is not driven by the motor or the external fan, namely, when the motor normally works, a sealing mechanism between the second rotating shaft and the shell is not abraded, so that a better sealing effect is maintained; only when the motor is damaged and stops working, the external fan is driven to rotate by the tunnel wind and then drives the internal fan to work through the second rotating shaft, and heat dissipation is continued.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

Fig. 3 is a schematic view of a housing cover structure.

Fig. 4 is a schematic view of the housing structure.

Fig. 5 is a schematic view of the housing, the stationary case, and the inverter mounting.

FIG. 6 is a schematic view of an internal fan and an external fan installation.

Fig. 7 is a schematic view of the structure of the stationary case.

Fig. 8 is an external view of the inverter.

FIG. 9 is a schematic view of an internal fan and an external fan drive.

Fig. 10 is a schematic view of a flow guide structure.

Fig. 11 is a schematic view of the tie rod installation.

Fig. 12 is a schematic view of a spring installation.

Number designation in the figures: 1. a housing; 2. a housing cover; 3. a support; 4. a first set screw; 5. a second set screw; 6. a conical heat-conducting sheet; 7. a gasket; 8. a stationary case; 9. an inverter; 10. a built-in fan; 11. a flow guide structure; 12. an external fan; 13. tapered ribs; 14. a first tightening threaded hole; 15. mounting grooves; 16. a rotational mounting member; 17. a first gear; 18. a limiting ring; 19. a second gear; 20. a first strip-shaped rib; 21. mounting a shell; 22. a first shaft hole; 23. a third gear; 24. a third shaft hole; 25. a rotating tank; 26. a fourth shaft hole; 27. a fixing plate; 28. a fourth gear; 29. a motor; 30. sliding sealing; 31. a second strip-shaped rib; 32. swirl fins; 33. an air inlet; 34. fixing a support plate; 35. a connecting plate; 36. fixing the bolt; 37. a nut; 38. a first rotating shaft; 39. a flow guide channel; 40. a flow deflector; 41. fixing and supporting; 42. a rotating ring; 43. a fixing ring; 44. a fifth gear; 45. a pull rod; 46. a sixth gear; 47. a second rotating shaft; 48. a seventh gear; 49. a spring; 50. a rotating sleeve.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples or figures are illustrative of the present invention and are not intended to limit the scope of the present invention.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must be of a particular length, orientation, configuration and operation in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, the air conditioner comprises a housing 1, a housing cover 2, a bracket 3, a fixed housing 8, an inverter 9, an internal fan 10, an external fan 12 and a motor 29, wherein as shown in fig. 4, the housing 1 is of a cylindrical structure, the front end of the housing 1 is an open end, and a plurality of fins are uniformly arranged on the outer circumferential surface and the rear end surface of the housing 1; as shown in fig. 2, a housing cover 2 is detachably mounted at the open end of the housing 1, as shown in fig. 3, the housing cover 2 is a conical structure, and uniformly distributed fins are mounted on the outer conical surface of the housing cover 2; as shown in fig. 1, a bracket 3 is mounted to the outside of the housing 1.

As shown in fig. 5, a fixed casing 8 is installed in the housing 1, as shown in fig. 7, the fixed casing 8 is a cylindrical structure, the front end of the fixed casing 8 is an open end, and the rear end of the fixed casing 8 is provided with an air inlet 33; a plurality of fins are uniformly arranged on the outer circular surface and the rear end surface of the fixed shell 8 in the circumferential direction, half of the fins on the outer circular surface of the fixed shell 8 are fixedly connected with the inner wall surface of the shell 1, and the fins fixed with the shell 1 and the fins not fixed are distributed at intervals; as shown in fig. 5 and 8, the inverter 9 is detachably mounted inside the stationary case 8.

As shown in fig. 6, the motor 29 is mounted on the inner end surface of the housing 1, the output shaft of the motor 29 passes through the air inlet hole 33 and is located in the fixed casing 8, and the built-in fan 10 is fixedly mounted; an external fan 12 is installed at the rear end of the housing 1.

The support 3 is used for conveniently installing the equipment in a subway tunnel, and the support 3 is fixed in the subway tunnel through bolts.

The equipment designed by the invention is mainly used in a subway tunnel, the wind direction in the subway tunnel is determined, and the rear end of the shell 1 faces the direction blown by wind when the equipment is installed, namely the external fan 12 faces the wind direction.

The conical heat conducting fin 6 is arranged at the front end of the fixed shell 8, so that the heat radiating area can be increased through the conical heat conducting fin 6, and hot air can be easily absorbed for heat radiation.

In the invention, the fixed shell 8 is fixedly arranged in the shell 1 through the second strip-shaped rib 31 fixedly connected with the shell 1 on the outer side wall surface of the fixed shell 8.

The air inlet end of the built-in fan 10 of the present invention is the center of one end close to the inner end face of the fixing casing 8, and the air outlet is located on the outer circular face of the fan casing 1, which is the prior art.

The heat generated from the inverter 9 in the present invention is first blown by the built-in fan 10 through the front inner wall surface of the case cover 2, then flows backward from the gap between the fixed case 8 and the case 1, and finally flows onto the rear end surface of the case 1. In the invention, because the rear end of the device faces the wind direction of the tunnel, the heat dissipation effect of the shell 1 is gradually increased from the rear end to the front end, namely the heat dissipation effect is gradually increased from the rear end to the front end.

In the invention, the gas in the shell 1 adopts internal circulation in the heat dissipation process, and the design of a special internal circulation structure ensures that the heat dissipation efficiency is high and the heat dissipation effect is good. In addition, the wind direction of the tunnel is fully utilized to enable the heat dissipation area to form three areas with different temperatures; in the heat dissipation process, hot air flows firstly pass through the heat dissipation area with the highest temperature, then pass through the heat dissipation area with the middle temperature height, and finally carry out heat dissipation in the heat dissipation area with the lowest temperature, and the better heat dissipation effect can be achieved through the heat dissipation sequence, namely, the countercurrent heat exchange.

As shown in fig. 4, a limit ring 18 is fixedly mounted on the outer wall surface of the open end of the housing 1, a threaded hole is formed in the outer wall surface of the open end of the housing 1, which is located at the front side of the limit ring 18, as shown in fig. 3, a first tightening threaded hole 14 is formed in the housing cover 2, as shown in fig. 2, the housing cover 2 is mounted at the front end of the housing 1 by a second tightening screw, which passes through the first tightening threaded hole 14 in the housing cover 2 and is in threaded fit with the threaded hole in the housing 1; and a sealing ring is arranged between the inner end surface of the shell cover 2 and the front end of the shell 1. The sealing ring has the function of sealing the connection between the housing 1 and the housing cover 2.

As shown in fig. 1, the bracket 3 is detachably mounted on the outer wall surface of the housing 1 by a first tightening screw.

As shown in fig. 6, the air inlet end of the built-in fan 10 is one end close to the inner end surface of the fixed casing 8, and the air outlet is located on the outer circular surface of the fan casing 1; the inner end surface of the fixed shell 8 is fixedly provided with a flow guide structure 11, as shown in fig. 10, the flow guide structure 11 is composed of a plurality of layers of arc-shaped flow guide sheets 40, and a flow guide channel 39 is formed between adjacent flow guide sheets 40; the inner end of the flow guiding structure 11 is aligned with the air outlet of the built-in fan 10.

As shown in fig. 4, a plurality of first strip-shaped ribs 20 are uniformly arranged on the outer circumferential surface and the rear end surface of the housing 1; as shown in fig. 3, a plurality of tapered ribs 13 are uniformly arranged on the outer tapered surface of the housing cover 2 in the circumferential direction; as shown in fig. 7, a plurality of second strip-shaped fins 31 are circumferentially and uniformly and fixedly installed on the outer circumferential surface of the fixed casing 8, a plurality of vortex-shaped fins 32 are circumferentially and uniformly and fixedly installed on the rear end surface of the fixed casing 8, the vortex-shaped fins 32 on the rear end surface of the fixed casing 8 form a plurality of vortex-shaped channels, and the inner ends of the vortex-shaped channels are communicated with the air inlet 33; as shown in fig. 2, the conical heat conducting fin 6 is mounted in the front end of the fixing housing 8 in an embedded manner, and after the housing cover 2 is mounted, the inner conical surface of the housing cover 2 is tightly attached to the outer conical surface of the conical heat conducting fin 6.

The scroll fins 32 can gather the hot air toward the middle under the action of the built-in fan 10, and because of the scroll passages, the area of the hot air contacting the scroll fins 32 is large, and the heat dissipation effect is good.

As shown in fig. 4, a mounting case 21 is fixedly mounted to the rear end of the housing 1, and a first shaft hole 22 penetrating inside and outside is formed in the mounting case 21.

As shown in fig. 4, a third shaft hole 24 and a fourth shaft hole 26 are formed on the rear end surface of the housing 1, an installation groove 15 is formed on the outer circumferential surface of the fourth shaft hole 26, and a rotation groove 25 is formed on the rear end surface of the housing 1.

As shown in fig. 6, the rear end of the housing 1 of the motor 29 is fixedly provided with a rotating mounting member 16, and the motor 29 is rotatably mounted on the inner end surface of the housing 1 through the cooperation of the rotating mounting member 16 and the fourth shaft hole 26; as shown in fig. 12, a fixing plate 27 is fixedly mounted on an outer circumferential surface of the rotation mounting member 16, the fixing plate 27 is located in the mounting groove 15, a spring 49 is mounted between the fixing plate 27 and the mounting groove 15, and the spring 49 is a compression spring 49 and has a pre-pressure.

As shown in fig. 6, 9 and 11, the first shaft 38 is rotatably mounted on the mounting case 21 through the first shaft hole 22, and the external fan 12 is mounted on the first shaft 38; a sixth gear 46 is fixedly mounted at one end of the first rotating shaft 38, which is positioned at the outer side of the mounting shell 21; the second rotating shaft 47 is rotatably mounted on the mounting shell 21 through the third shaft hole 24, the fifth gear 44 is rotatably mounted on the second rotating shaft 47, one end of the fifth gear 44 is fixedly mounted with the fixing ring 43, and the fixing ring 43 is rotatably mounted in the rotating groove 25; the fifth gear 44 meshes with the sixth gear 46; the other end of the fifth gear 44 has face teeth; the sixth gear 46 has end face teeth, and the sixth gear 46 is fixedly mounted on the second rotating shaft 47 and located in the mounting shell 21; the sixth gear 46 is engaged with the fifth gear 44; one end of the second rotating shaft 47, which is positioned in the housing 1, is fixedly provided with a rotating ring 42, a rotating sleeve 50 is rotatably arranged in the rotating ring 42, one end of the pull rod 45 is arranged on the rotating sleeve 50 in a spherical hinge manner, and the other end of the pull rod 45 is arranged on the housing 1 of the motor 29 in a spherical hinge manner; the second gear 19 is provided with end face teeth, the second gear 19 is fixedly arranged on the second rotating shaft 47, the fixed support 41 is fixedly arranged in the shell 1, the fourth gear 28 is rotatably arranged on the fixed support 41, the fourth gear 28 is provided with end face teeth, and the fourth gear 28 is matched with the second gear 19; the third gear 23 is rotatably mounted on the fixed support 41, the third gear 23 is meshed with the fourth gear 28, the first gear 17 is fixedly mounted on the output shaft of the motor 29, and the first gear 17 is meshed with the third gear 23.

A sliding seal 30 is installed between the second rotating shaft 47 and the housing 1.

As shown in fig. 7, a fixing support 34 is fixedly mounted on each of four side walls in the fixing casing 8, as shown in fig. 8, four connecting plates 35 are fixedly mounted on four outer walls of the inverter 9, as shown in fig. 5, the four connecting plates 35 correspond to the four fixing support 34 one by one and are penetrated by fixing bolts 36, and four nuts 37 are mounted on the four fixing bolts 36.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.

The implementation mode is as follows: when the apparatus designed by the present invention is used, the heat emitted from the inverter 9 is first blown by the built-in fan 10 through the front inner wall surface of the case cover 2, then flows backward from the gap between the fixed case 8 and the case 1, and finally flows onto the rear end surface of the case 1.

When not in use, under the action of the spring 49, the motor 29 is still in the housing 1, and the second gear 19 is meshed with the fourth gear 28; the fifth gear 44 meshes with the sixth gear 46; when the control motor 29 works, the output shaft drives the indoor fan to work; the motor 29 shell 1 rotates reversely relative to the output shaft to pull the pull rod 45, so that the pull rod 45 pulls the rotary sleeve 50 to slide towards the side far away from the fourth gear 28, the rotary sleeve 50 slides to drive the second rotating shaft 47 to slide towards the side far away from the fourth gear 28 through the rotary ring 42, the second rotating shaft 47 slides to drive the sixth gear 46 and the second gear 19 to slide, so that the sixth gear 46 is separated from the fifth gear 44, the second gear 19 is separated from the fourth gear 28, at this time, the motor 29 works to drive the indoor fan to work, but the outdoor fan cannot be influenced through the first gear 17, the third gear 23, the fourth gear 28, the second rotating shaft 47, the sixth gear 46, the fifth gear 44 and the seventh rotating shaft. When the motor 29 is damaged and cannot work, the motor 29 loses the rotary driving force of the shell 1, and the second gear 19 is meshed with the fourth gear 28 under the action of the spring 49; the fifth gear 44 meshes with the sixth gear 46; the outdoor fan drives the first rotating shaft 38 to rotate, the first rotating shaft 38 rotates to drive the seventh gear 48 to rotate, the seventh gear 48 rotates to drive the fifth gear 44 to rotate, the fifth gear 44 rotates to drive the sixth gear 46 to rotate, the sixth gear 46 rotates to drive the second rotating shaft 47 to rotate, the second rotating shaft 47 rotates to drive the second gear 19 to rotate, the second gear 19 rotates to drive the fourth gear 28 to rotate, the fourth gear 28 rotates to drive the third gear 23 to rotate, the third gear 23 rotates to drive the first gear 17 to rotate, the first gear 17 rotates to drive the motor 29 to rotate, and the motor 29 drives the indoor fan to work through the output shaft.

Claims

1. An inverter heat sink apparatus for an enclosed environment, characterized by: the fan comprises a shell, a shell cover, a bracket, a fixed shell, an inverter, an internal fan, an external fan and a motor, wherein the shell is of a cylindrical structure, the front end of the shell is an open end, and a plurality of fins are uniformly arranged on the outer circular surface and the rear end surface of the shell; the shell cover is detachably mounted at the opening end of the shell and is of a conical structure, and fins which are uniformly distributed are mounted on the outer conical surface of the shell cover; a bracket is arranged on the outer side of the shell;

a fixed shell is arranged in the shell, the fixed shell is of a cylindrical structure, the front end of the fixed shell is an opening end, and the rear end of the fixed shell is provided with an air inlet; a plurality of fins are uniformly arranged on the outer circular surface and the rear end surface of the fixed shell in the circumferential direction, half of the fins on the outer circular surface of the fixed shell are fixedly connected with the inner wall surface of the shell, and the fins fixed with the shell and the fins not fixed are distributed at intervals; the inverter is detachably arranged on the inner side of the fixed shell;

2. The inverter heat sink apparatus for an enclosed environment of claim 1, wherein: the outer wall surface of the opening end of the shell is fixedly provided with a limiting ring, the outer wall surface of the opening end of the shell is provided with a threaded hole at the front side of the limiting ring, the shell cover is provided with a first tightening threaded hole, the shell cover is arranged at the front end of the shell through a second tightening screw, and the second tightening screw penetrates through the first tightening threaded hole on the shell cover to be in threaded fit with the threaded hole on the shell; and a sealing ring is arranged between the inner end surface of the outer shell cover and the front end of the outer shell.

3. The inverter heat sink apparatus for an enclosed environment of claim 1, wherein: the bracket is detachably arranged on the outer wall surface of the shell through a first tightening screw.

4. The inverter heat sink apparatus for an enclosed environment of claim 1, wherein: the air inlet end of the built-in fan is one end close to the inner end face of the fixed shell, and the air outlet is positioned on the outer circular face of the fan shell; the inner end face of the fixed shell is fixedly provided with a flow guide structure, the flow guide structure is composed of a plurality of layers of arc-shaped flow guide sheets, and a flow guide channel is formed between every two adjacent flow guide sheets; the inner end of the flow guide structure is aligned with the air outlet of the built-in fan.

5. The inverter heat sink apparatus for an enclosed environment of claim 1, wherein: a plurality of first strip-shaped ribs are uniformly arranged on the outer circular surface and the rear end surface of the shell; a plurality of conical ribs are uniformly arranged on the outer conical surface of the shell cover in the circumferential direction; a plurality of second strip-shaped fins are uniformly and fixedly arranged on the outer circular surface of the fixed shell in the circumferential direction, a plurality of vortex-shaped fins are uniformly and fixedly arranged on the rear end surface of the fixed shell in the circumferential direction, the vortex-shaped fins on the rear end surface of the fixed shell form a plurality of vortex-shaped channels, and the inner ends of the vortex-shaped channels are communicated with the air inlet; the front end of the fixed shell is nested with the conical heat conducting fins, and after the outer shell cover is installed, the inner conical surface of the outer shell cover is tightly attached to the outer conical surface of the conical heat conducting fins.

6. The inverter heat sink apparatus for an enclosed environment of claim 1, wherein: the rear end of the shell is fixedly provided with a mounting shell, and the mounting shell is provided with a first shaft hole which is through inside and outside;

a third shaft hole and a fourth shaft hole are formed in the rear end face of the shell, an installation groove is formed in the outer circular surface of the fourth shaft hole, and a rotating groove is formed in the rear end face of the shell;

the rear end of the motor shell is fixedly provided with a rotating mounting piece, and the motor is rotatably mounted on the inner end face of the shell through the matching of the rotating mounting piece and the fourth shaft hole; a fixing plate is fixedly arranged on the outer circular surface of the rotating installation part and positioned in the installation groove, a spring is arranged between the fixing plate and the installation groove, and the spring is a compression spring and has pre-pressure;

7. The inverter heat sink apparatus for an enclosed environment of claim 6, wherein: and a sliding seal is arranged between the second rotating shaft and the shell.

8. The inverter heat sink apparatus for an enclosed environment of claim 1, wherein: four side walls in the fixed shell are fixedly provided with a fixed support plate, four outer walls of the inverter are fixedly provided with four connecting plates, the four connecting plates correspond to the four fixed support plates one by one and are penetrated by fixing bolts, and four nuts are arranged on the four fixing bolts.