CN114040622A

CN114040622A - Inverter heat dissipation device

Info

Publication number: CN114040622A
Application number: CN202111491448.4A
Authority: CN
Inventors: 汪宏策
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-02-11

Abstract

The invention belongs to the technical field of inverter heat dissipation, and particularly relates to an inverter heat dissipation device which comprises a shell, a shell cover, a support, a net structure, a fixed shell, an inverter, an internal fan, an external fan, cross fins, shell cover external fins, shell rear fins, first strip fins, a motor, second strip fins and vortex fins. 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 device

Technical Field

The invention belongs to the technical field of inverter heat dissipation, and particularly relates to an inverter heat dissipation device.

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 invention designs an inverter heat dissipation device to solve the problems.

Disclosure of Invention

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

an inverter heat dissipation device comprises a shell, a shell cover, a support, a net structure, a fixed shell, an inverter, an internal fan, an external fan, cross fins, shell cover external fins, shell rear fins, first strip fins, a motor, second strip fins and vortex fins, wherein the front end of the shell is an opening end, a plurality of first strip fins which are arranged in the front-back direction are uniformly arranged on four outer side wall surfaces of the shell, and a plurality of shell rear fins are uniformly arranged on the rear end surface of the shell in the circumferential direction; the shell cover is detachably mounted at the opening end of the shell, the cross fins are mounted on the outer end face of the shell cover, and a plurality of shell cover external fins which are arranged from inside to outside and face the center of the outer end face of the shell cover are uniformly mounted in four square areas uniformly divided by the cross fins on the outer end face of the shell cover; the cross fins arranged on the outer end face of the shell cover and the front end face of the external fins of the shell cover are combined into a conical surface with a generatrix as an arc line; a net structure formed by winding steel wires is arranged on the inner end face of the outer shell cover; and a bracket is arranged on the outer side of the shell.

A fixed shell is arranged in the shell, the front end of the fixed shell is an open end, and the rear end of the fixed shell is provided with an air inlet; a plurality of second strip-shaped fins which are arranged in the front-back direction are uniformly arranged on four outer side wall surfaces of the fixed shell, and 4 second strip-shaped fins arranged on each wall surface are fixedly connected with the inner wall surface of the shell; a plurality of vortex-shaped fins are uniformly 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 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.

Preferably, a limit ring is fixedly mounted on the outer wall surface of the opening end of the shell, a second tightening threaded hole is formed in the outer wall surface of the opening end of the shell, which is positioned on the front side of the limit ring, a first tightening threaded hole is formed in the shell cover, the shell cover is mounted 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 and is in threaded fit with the first tightening 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.

Preferably, the motor is rotatably mounted on the inner end surface of the housing.

The rear end surface of the shell is provided with a third shaft hole and a fourth shaft hole which are communicated with each other inside and outside; the rear end surface of the shell is provided with a trapezoidal sliding chute.

The rear end fixed mounting of shell has the installation shell, it has inside and outside first shaft hole and the second shaft hole that link up to open on the installation shell.

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 third 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 second shaft hole, the fourth gear is fixedly arranged on the second rotating shaft, and the fourth gear is meshed with the third gear; one end of the third rotating shaft is fixedly provided with a trapezoidal sliding block, and the third rotating shaft is arranged on the rear end face of the shell through the sliding fit of the trapezoidal sliding block and the trapezoidal sliding chute and is positioned in the mounting shell; a telescopic rotating shaft is arranged between the third rotating shaft and the second rotating shaft, and both ends of the telescopic rotating shaft are respectively connected with the third rotating shaft and the second rotating shaft through a universal joint; the second gear is fixedly arranged on a third rotating shaft, a first fixing sleeve is fixedly arranged on the third rotating shaft, and a first toothed plate is fixedly arranged on the first fixing sleeve; a fifth rotating shaft is fixedly installed on the shell of the motor, penetrates through the fourth shaft hole and is fixedly provided with a first gear, and the first gear is located in the installation shell; the first gear is meshed with the first toothed plate; the upper end of the first toothed plate is provided with a transverse plate, the limiting plate is fixedly arranged on the rear end face of the shell, and the limiting plate is positioned at the lower side of the transverse plate at the upper end of the first toothed plate and limits the transverse plate; the fixed plate is fixedly arranged on the rear end face of the shell, a spring is arranged between the fixed plate and the limiting plate, and the spring is a compression spring and has pre-pressure; the upper end of the first toothed plate is provided with a guide rod which is in sliding fit with the fixed plate; the fourth rotating shaft is rotatably arranged on the shell through a third shaft hole, a fifth gear is fixedly arranged at one end of the fourth rotating shaft, which is positioned in the mounting shell, and the fifth gear is matched with the second gear; one end of the fourth rotating shaft, which is positioned in the shell, is provided with a telescopic shaft through a universal joint, the other end of the telescopic shaft is provided with a sixth rotating shaft through the universal joint, the sixth rotating shaft is fixedly provided with a second toothed plate, the shell of the motor is fixedly provided with a gear ring, and the gear ring is meshed with the second toothed plate; the sixth gear is fixedly arranged on the sixth rotating shaft, the seventh gear is rotatably arranged on the inner end surface of the shell, and the seventh gear is matched with the sixth gear; the eighth gear is fixedly arranged on the output shaft of the motor, and the eighth gear is meshed with the seventh gear.

Preferably, a first sliding seal is installed between the fifth rotating shaft and the housing, and a second sliding seal is installed between the fourth 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. when wind blows from the rear end to the front side outside the shell, a backflow area is formed at the conical surface, and the conical surface formed by the cross fins designed on the shell cover and the fins outside the shell cover can fully utilize backflow formed by the backflow area to dissipate heat.

2. The net structure wound by the steel wires is arranged on the inner end face of the shell cover, so that the heat dissipation area can be increased through the net structure, and hot air can be easily absorbed for heat dissipation.

3. 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.

4. When the motor normally works, the built-in fan and the external fan are driven and separated, and the fourth 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 fourth 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, the internal fan is driven to work through the fourth rotating shaft, and heat dissipation is continued; and the fifth rotating shaft can rotate for a certain angle only when the motor is started, so that the sealing structure between the fifth rotating shaft and the shell is basically not abraded.

5. Because the heat dissipation adopts the internal circulation and does not have an external opening, the dustproof effect is achieved.

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, the stationary case, and the inverter mounting.

Fig. 5 is a schematic view of the housing structure.

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.

Figure 11 is a schematic view of the first and second tooth plates being installed.

Fig. 12 is a schematic view of wind direction flow.

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 mesh structure; 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. cross-shaped fins; 14. a first tightening threaded hole; 15. the shell cover is externally provided with fins; 16. a conical surface; 17. a second tightening threaded hole; 18. a limiting ring; 19. fins are arranged at the back of the shell; 20. a first strip-shaped rib; 21. mounting a shell; 22. a first shaft hole; 23. a second shaft hole; 24. a third shaft hole; 25. a trapezoidal chute; 26. a fourth shaft hole; 27. a fixing plate; 28. a first sliding seal; 29. a motor; 30. a second sliding seal; 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. a ring gear; 42. a guide bar; 43. a spring; 44. a limiting plate; 45. a first gear; 46. a first toothed plate; 47. a second gear; 48. a third gear; 49. a fourth gear; 50. a second rotating shaft; 51. a universal joint; 52. a telescopic shaft; 53. a fifth gear; 54. a third rotating shaft; 55. a first fixing sleeve; 56. a fourth rotating shaft; 57. a trapezoidal guide block; 58. a sixth gear; 59. a seventh gear; 60. a sixth rotating shaft; 61. an eighth gear; 62. a second toothed plate; 63. and a fifth rotating shaft.

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 net structure 6, a fixed housing 8, an inverter 9, an internal fan 10, an external fan 12, cross fins 13, housing cover external fins 15, housing rear fins 19, first strip fins 20, a motor 29, second strip fins 31 and vortex fins 32, wherein as shown in fig. 5, the front end of the housing 1 is an open end, a plurality of first strip fins 20 arranged in the front-back direction are uniformly installed on four outer side wall surfaces of the housing 1, and a plurality of housing rear fins 19 are uniformly installed on the rear end surface of the housing 1 in the circumferential direction; as shown in fig. 2, a housing cover 2 is detachably mounted at an open end of the housing 1, as shown in fig. 3, a cross rib 13 is mounted on an outer end surface of the housing cover 2, and a plurality of housing cover external ribs 15 which are arranged from inside to outside and face the center of the outer end surface of the housing cover 2 are uniformly mounted in four square areas uniformly divided by the cross rib 13 on the outer end surface of the housing cover 2; the cross fins 13 arranged on the outer end face of the outer shell cover 2 and the front end face of the outer shell cover external fins 15 are combined into a conical surface 16 with an arc-shaped bus; a net structure 6 formed by winding steel wires is arranged on the inner end face of the outer shell cover 2; as shown in fig. 1, a bracket 3 is mounted to the outside 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.

As shown in FIG. 12, when the wind blows from the back end to the front side of the housing 1, the back flow area is formed at the tapered surface 16, and the tapered surface 16 formed by the cross fins 13 and the housing cover external fins 15 designed on the housing cover 2 can fully utilize the back flow formed by the back flow area to dissipate the heat.

The net structure 6 wound by steel wires is arranged on the inner end face of the shell cover 2, the heat dissipation area can be increased by the net structure 6, and hot air can be easily absorbed for heat dissipation.

As shown in fig. 7, a fixed casing 8 is installed in the outer casing 1, the front end of the fixed casing 8 is an open end, and an air inlet 33 is opened at the rear end of the fixed casing 8; a plurality of second strip-shaped fins 31 arranged in the front-back direction are uniformly arranged on four outer side wall surfaces of the fixed shell 8, as shown in fig. 4, 4 of the second strip-shaped fins 31 arranged on each wall surface are fixedly connected with the inner wall surface of the shell 1; a plurality of vortex fins 32 are uniformly arranged on the rear end surface of the fixed shell 8 in the circumferential direction, the vortex fins 32 on the rear end surface of the fixed shell 8 form a plurality of vortex channels, and the inner ends of the vortex channels are communicated with the air inlet 33; as shown in fig. 4 and 8, the inverter 9 is detachably mounted inside the stationary case 8.

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 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. 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 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. 5, a limit ring 18 is fixedly mounted on the outer wall surface of the open end of the housing 1, a second tightening screw hole 17 is formed in the outer wall surface of the open end of the housing 1, which is located on the front side of the limit ring 18, as shown in fig. 3, a first tightening screw hole 14 is formed in the housing cover 2, as shown in fig. 2, the housing cover 2 is mounted on the front end of the housing 1 by a second tightening screw, which passes through the first tightening screw hole 14 in the housing cover 2 and is in threaded fit with the first tightening screw hole 14 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 and 11, the air inlet end of the built-in fan 10 is an 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 housing 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. 6, the motor 29 is rotatably mounted on the inner end surface of the housing 1.

As shown in fig. 5, a third shaft hole 24 and a fourth shaft hole 26 which are internally and externally penetrated are formed on the rear end surface of the housing 1; the rear end surface of the shell 1 is provided with a trapezoidal sliding groove 25.

As shown in fig. 5, a mounting case 21 is fixedly mounted to the rear end of the housing 1, and the mounting case 21 is provided with a first shaft hole 22 and a second shaft hole 23 penetrating inside and outside.

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 third gear 48 is fixedly arranged 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 50 is rotatably mounted on the mounting shell 21 through the second shaft hole 23, the fourth gear 49 is fixedly mounted on the second rotating shaft 50, and the fourth gear 49 is meshed with the third gear 48; a trapezoidal sliding block is fixedly installed at one end of the third rotating shaft 54, and the third rotating shaft 54 is installed on the rear end face of the shell 1 and located in the installation shell 21 through the sliding fit of the trapezoidal sliding block and the trapezoidal sliding groove 25; a telescopic rotating shaft is arranged between the third rotating shaft 54 and the second rotating shaft 50, and both ends of the telescopic rotating shaft are respectively connected with the third rotating shaft 54 and the second rotating shaft 50 through a universal joint 51; the second gear 47 is fixedly mounted on the third rotating shaft 54, the third rotating shaft 54 is fixedly mounted with a first fixing sleeve 55, and the first toothed plate 46 is fixedly mounted on the first fixing sleeve 55; a fifth rotating shaft 63 is fixedly installed on the housing 1 of the motor 29, the fifth rotating shaft 63 penetrates through the fourth shaft hole 26 and then is fixedly installed with a first gear 45, and the first gear 45 is located in the installation shell 21; the first gear 45 meshes with a first toothed plate 46; the upper end of the first toothed plate 46 is provided with a transverse plate, the limiting plate 44 is fixedly arranged on the rear end surface of the shell 1, and the limiting plate 44 is positioned at the lower side of the transverse plate at the upper end of the first toothed plate 46 and limits the transverse plate; the fixed plate 27 is fixedly arranged on the rear end surface of the shell 1, a spring 43 is arranged between the fixed plate 27 and the limit plate 44, and the spring 43 is a compression spring 43 and has pre-pressure; the upper end of the first toothed plate 46 is provided with a guide rod 42, and the guide rod 42 is in sliding fit with the fixed plate 27; the fourth rotating shaft 56 is rotatably mounted on the housing 1 through the third shaft hole 24, a fifth gear 53 is fixedly mounted at one end of the fourth rotating shaft 56 in the mounting shell 21, and the fifth gear 53 is matched with the second gear 47; one end of the fourth rotating shaft 56, which is positioned in the housing 1, is provided with a telescopic shaft 52 through a universal joint 51, the other end of the telescopic shaft 52 is provided with a sixth rotating shaft 60 through the universal joint 51, a second toothed plate 62 is fixedly arranged on the sixth rotating shaft 60, a gear ring 41 is fixedly arranged on the housing 1 of the motor 29, and the gear ring 41 is meshed with the second toothed plate 62; the sixth gear 58 is fixedly arranged on the sixth rotating shaft 60, the seventh gear 59 is rotatably arranged on the inner end surface of the shell 1, and the seventh gear 59 is matched with the sixth gear 58; an eighth gear 61 is fixedly mounted on the output shaft of the motor 29, and the eighth gear 61 is meshed with the seventh gear 59.

As shown in fig. 6, a first sliding seal 28 is installed between the fifth rotating shaft 63 and the housing 1, and a second sliding seal 30 is installed between the fourth rotating shaft 56 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. 4, 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 43, the first toothed plate 46 is close to the limit plate 44, and the second gear 47 is meshed with the fifth gear 53; the sixth gear 58 meshes with the seventh gear 59; when the control motor 29 works, the output shaft drives the indoor fan to work; the motor 29 housing 1 rotates reversely relative to the output shaft to drive the fifth rotating shaft 63 to rotate, the fifth rotating shaft 63 rotates to drive the first gear 45 to rotate, the first gear 45 rotates to drive the first toothed plate 46 to slide upwards, the first toothed plate 46 drives the first fixing sleeve 55 to slide, the first fixing sleeve 55 slides to drive the third rotating shaft 54 to slide, and the third rotating shaft 54 drives the second gear 47 to slide, so that the second gear 47 is disengaged from the fifth gear 53; according to the invention, the universal joint 51 and the telescopic shaft 52 between the third rotating shaft 54 and the second rotating shaft 50 can ensure that the second rotating shaft 50 cannot be influenced in the sliding process of the third rotating shaft 54, and meanwhile, the rotating force can be transmitted between the third rotating shaft 54 and the second rotating shaft 50; when the motor 29 shell 1 rotates reversely relative to the output shaft, the motor 29 shell 1 can drive the gear ring 41 to rotate at the same time, the gear ring 41 drives the second toothed plate 62 to slide downwards, the second toothed plate 62 slides to drive the sixth rotating shaft 60 to slide, and the sixth rotating shaft 60 drives the sixth gear 58 to slide, so that the sixth gear 58 is separated from the seventh gear 59, and the universal joint 51 and the telescopic shaft 52 between the sixth rotating shaft 60 and the fourth rotating shaft 56 can ensure that the fourth rotating shaft 56 cannot be influenced in the sliding process of the sixth rotating shaft 60, and meanwhile, the rotating force can be transmitted between the sixth rotating shaft 60 and the fourth rotating shaft 56; therefore, in normal operation, the motor 29 is operated to disengage the sixth gear 58 from the seventh gear 59 and disengage the fifth gear 53 from the second gear 47, and at this time, the motor 29 is operated to drive the indoor fan to operate, but the outdoor fan is not affected by the eighth gear 61, the seventh gear 59, the sixth gear 58, the sixth rotating shaft 60, the fourth rotating shaft 56, the fifth gear 53, the second gear 47, the third rotating shaft 54, the second rotating shaft 50, the fourth gear 49 and the third gear 48. When the motor 29 is damaged and cannot work, the motor 29 shell 1 loses the rotation driving force, at this time, under the action of the spring 43, the first toothed plate 46 moves downwards, the second toothed plate 62 moves upwards, and the second gear 47 is meshed with the fifth gear 53; the sixth gear 58 is meshed with the seventh gear 59, in this state, the outdoor fan will operate to drive the first rotating shaft 38 to rotate, the first rotating shaft 38 will drive the third gear 48 to rotate, the third gear 48 will drive the fourth gear 49 to rotate, the fourth gear 49 will drive the second rotating shaft 50 to rotate, the second rotating shaft 50 will drive the third rotating shaft 54 to rotate through the corresponding universal joint 51 and the telescopic shaft 52, the third rotating shaft 54 will drive the second gear 47 to rotate, the second gear 47 will drive the fifth gear 53 to rotate, the fifth gear 53 will drive the fourth rotating shaft 56 to rotate, the fourth rotating shaft 56 will drive the sixth rotating shaft 60 to rotate through the corresponding universal joint 51 and the telescopic shaft 52, the sixth rotating shaft 60 will drive the sixth gear 58 to rotate, the sixth gear 58 will drive the seventh gear 59 to rotate, the seventh gear 59 will drive the eighth gear 61 to rotate, the eighth gear 61 will drive the output shaft of the motor 29 to rotate, the output shaft of the motor 29 drives the indoor fan to work.

Claims

1. An inverter heat dissipation device, characterized in that: the motor comprises a shell, a shell cover, a support, a net structure, a fixed shell, an inverter, an internal fan, an external fan, cross fins, shell cover external fins, shell rear fins, first strip fins, a motor, second strip fins and vortex fins, wherein the front end of the shell is an open end, a plurality of first strip fins which are arranged in the front-back direction are uniformly arranged on four outer side wall surfaces of the shell, and a plurality of shell rear fins are uniformly arranged on the rear end surface of the shell in the circumferential direction; the shell cover is detachably mounted at the opening end of the shell, the cross fins are mounted on the outer end face of the shell cover, and a plurality of shell cover external fins which are arranged from inside to outside and face the center of the outer end face of the shell cover are uniformly mounted in four square areas uniformly divided by the cross fins on the outer end face of the shell cover; the cross fins arranged on the outer end face of the shell cover and the front end face of the external fins of the shell cover are combined into a conical surface with a generatrix as an arc line; a net structure formed by winding steel wires is arranged on the inner end face of the outer shell cover; a bracket is arranged on the outer side of the shell;

a fixed shell is arranged in the shell, the front end of the fixed shell is an open end, and the rear end of the fixed shell is provided with an air inlet; a plurality of second strip-shaped fins which are arranged in the front-back direction are uniformly arranged on four outer side wall surfaces of the fixed shell, and 4 second strip-shaped fins arranged on each wall surface are fixedly connected with the inner wall surface of the shell; a plurality of vortex-shaped fins are uniformly 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 inverter is detachably arranged on the inner side of the fixed shell;

2. The inverter heat sink according to 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 second tightening 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 first tightening 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 according to 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 according to 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 according to claim 1, wherein: the motor is rotatably arranged on the inner end surface of the shell;

the rear end surface of the shell is provided with a third shaft hole and a fourth shaft hole which are communicated with each other inside and outside; the rear end surface of the shell is provided with a trapezoidal sliding chute;

the rear end of the shell is fixedly provided with a mounting shell, and the mounting shell is provided with a first shaft hole and a second shaft hole which are communicated with each other inside and outside;

6. The inverter heat sink according to claim 5, wherein: and a first sliding seal is arranged between the fifth rotating shaft and the shell, and a second sliding seal is arranged between the fourth rotating shaft and the shell.

7. The inverter heat sink according to 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.