CN217217087U - Power module casing - Google Patents

Abstract

The utility model relates to a power module casing, which comprises a fan component, an upper casing, a lower casing and a panel component; the upper shell and the lower shell are folded to form a cavity, and the fan assembly is positioned in the cavity; the panel component comprises a panel and a fan mounting frame, the panel is located outside the cavity and fixedly connected with the upper shell and the lower shell respectively, the fan mounting frame is located on one side, close to the panel, in the cavity, the fan mounting frame is fixedly connected with the panel, the upper shell and the lower shell respectively, the fan component is fixed on the fan mounting frame, and a gap is formed between the fan component and the panel. The fan component of the utility model is arranged close to the panel component, so that a larger complete space in the cavity is reserved, the occupied space of the fan component is reduced, and the installation of a circuit board and other power supply components is more convenient; meanwhile, a gap is formed between the fan assembly and the panel, so that the fan assembly is prevented from being directly attached to the panel, and the fan assembly can fan airflow.

Description

Power module casing

Technical Field

The utility model relates to a power module technical field especially relates to a power module casing.

Background

At present, power module in the market is various, and the design of casing is also different greatly, and in order to satisfy power module's heat dissipation requirement, the casing can have heat radiation structure, and general heat radiation structure is heat dissipation wind channel and radiator fan, and current radiator fan installs inside the casing, but mounting structure is complicated, influences the overall arrangement of power module internals, still has the unstable problem of installation simultaneously.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in overcoming the defect among the prior art to a power module casing is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a power module casing comprises a fan assembly, an upper casing, a lower casing and a panel assembly; the upper shell and the lower shell are folded to form a cavity, and the fan assembly is positioned in the cavity;

the panel assembly comprises a panel and a fan mounting frame, the panel is located outside the cavity and is fixedly connected with the upper shell and the lower shell respectively, the fan mounting frame is located on one side, close to the panel, in the cavity, the fan mounting frame is fixedly connected with the panel, the upper shell and the lower shell respectively, the fan assembly is fixed on the fan mounting frame, and a gap is formed between the fan assembly and the panel;

be equipped with a plurality of on the panel with the first ventilation hole that fan assembly corresponds, the epitheca with the inferior valve is kept away from one of panel is served and is equipped with the second ventilation hole, first ventilation hole with the second ventilation hole with the cavity intercommunication.

Preferably, the fan assembly includes two at least fans, the fan mounting bracket includes the main part board, be equipped with two at least fan grooves on the main part board, the fan groove with the wind gap of fan corresponds, still be equipped with the fan mounting hole on the main part board, the fan mounting hole encircles the fan groove sets up in the position that corresponds with the four corners in fan groove, the four corners of the epitaxial plate of fan is equipped with the fixed orifices, and the fastener passes the fixed orifices with the fan mounting hole will the fan is fixed on the fan mounting bracket.

Preferably, the fan mount includes an extension plate extending from the main body plate in a direction toward the face plate, and the gap has a width equivalent to that of the extension plate.

Preferably, the extension plate is provided with a protrusion towards one side edge of the panel, the panel is provided with a groove, and the protrusion is inserted into the groove to fixedly connect the fan mounting rack with the panel.

Preferably, the main body plate is square, the number of the extension plates is four, the extension plates extend from four sides of the main body plate towards the panel direction, first fastening holes are formed in the extension plates and correspond to second fastening holes in the upper shell and the lower shell respectively, and the fan mounting frame is fixedly connected with the upper shell and the lower shell.

Preferably, the power module casing further comprises a lamp panel assembly, the lamp panel assembly comprises a lamp panel circuit board, a light guide member, a light shielding member and a lampshade,

the lamp panel circuit board is positioned in the cavity and is fixedly connected with the panel through a mounting column;

the light shading part is positioned between the lamp panel circuit board and the panel and comprises a first light shading plate attached to one surface, facing the cavity, of the panel and a second light shading plate extending towards the lamp panel circuit board, the second light shading plates are arranged at intervals, lamp beads on the lamp panel circuit board are positioned between every two adjacent second light shading plates, and light holes corresponding to the lamp beads are formed in the first light shading plates;

the light guide piece is sleeved on the second shading plate and attached to the first shading plate, and the light guide piece covers the light holes;

the lamp shade is arranged on one surface of the panel, which is far away from the cavity, and the number of the lamp shade corresponds to that of the lamp beads on the lamp panel circuit board;

the fan mounting frame is provided with an avoiding groove for avoiding the mounting column and the second light screen.

Preferably, the lamp plate subassembly still includes the barn door, one side of barn door with the panel orientation the one side laminating of cavity, the opposite side with the fan mounting bracket orientation the one side laminating of panel, the barn door is located the light trap with between the first ventilation hole.

Preferably, a platform is arranged at the edge of the panel, the platform protrudes towards the direction far away from the cavity, and a fastening structure is arranged on the platform;

the fastening structure is a release screw;

the panel deviates from be equipped with the handle in the one side of cavity, the handle with panel fixed connection.

Preferably, the upper shell has two symmetrical first connecting edges, the first connecting edges are bent and extended towards the lower shell, the edges of the first connecting edges are provided with a plurality of first connecting plates which are arranged at intervals and extended towards the lower shell, and the first connecting plates are retracted towards the cavity in a Z-shaped manner;

the lower shell is provided with two symmetrical second connecting edges, the second connecting edges are bent and extended towards the direction of the upper shell, the edges of the second connecting edges are provided with a plurality of second connecting plates which are arranged at intervals and extended towards the upper shell, and the second connecting plates are retracted towards the direction of the cavity in a Z shape;

the first connecting plates and the second connecting plates are arranged in a staggered mode, so that the second connecting plates are partially inserted between the adjacent first connecting plates when the upper shell and the lower shell are folded.

Preferably, a lining is arranged in the cavity, and the lining is attached to the inner surfaces of the upper shell and the lower shell and avoids the position of the fan assembly;

the lining is made of an insulating material;

still be equipped with the epoxy board in the cavity, the epoxy board covers part at least the internal surface of inside lining.

Compared with the prior art, the beneficial effects of the utility model reside in that:

in the power module casing provided in the above technical scheme, the panel is used as an outer protection surface and a decoration surface of the casing, is located outside the cavity and is fixedly connected with the upper casing and the lower casing respectively, the fan mounting frame is located at one side of the cavity close to the panel, the fan mounting frame is fixedly connected with the panel, the upper casing and the lower casing respectively, the fan assembly is fixed on the fan mounting frame, and a gap is formed between the fan assembly and the panel, so that the fan assembly is prevented from being directly attached to the panel, and the fanning airflow of the fan assembly is facilitated; the panel is provided with a plurality of first ventilation holes corresponding to the fan assemblies, one ends of the upper shell and the lower shell, which are far away from the panel, are provided with second ventilation holes, the first ventilation holes and the second ventilation holes are communicated with the cavity to form an air channel, and the fan assemblies are arranged in the air channel to realize forced cooling and heat dissipation of the fan, so that heat in the cavity is dissipated into the cavity more quickly; the fan assembly is arranged close to the panel assembly, a large complete space in the cavity is reserved, the occupied space of the fan assembly is reduced, and the installation of a circuit board and other power supply components is more convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a power module enclosure at a first viewing angle according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a power module casing at a second viewing angle provided in an embodiment of the present invention.

Fig. 3 is an exploded schematic view of a power module casing according to an embodiment of the present invention.

FIG. 4 is a schematic structural diagram of the fan mount in the embodiment shown in FIG. 3.

Fig. 5 is a cross-sectional view of the power module casing in the embodiment shown in fig. 1.

Fig. 6 is a cross-sectional view of another perspective of the power module enclosure in the embodiment shown in fig. 1.

Fig. 7 is a schematic structural view of the light shielding member in the embodiment shown in fig. 3.

Description of reference numerals:

10. an upper shell; 11. a first connecting edge; 12. a first connecting plate; 13. a first back plate; 14. a second vent hole; 15. a second fastening hole;

20. a lower case; 21. a second connecting edge; 22. a second connecting plate; 23. a second back plate;

30. a panel; 31. a first vent hole; 32. a groove; 33. mounting a column; 34. a platform; 35. a captive screw; 36. a handle;

40. a fan mounting bracket; 41. a main body plate; 411. a card slot; 42. a fan groove; 43. a fan mounting hole; 44. an extension plate; 441. a protrusion; 442. a first fastening hole; 45. an avoidance groove;

50. a fan assembly; 51. a fan; 52. a tuyere; 53. a fixing hole; 54. a gap;

60. a cavity;

70. a fixing plate;

80. a lamp panel assembly; 81. a lamp panel circuit board; 82. a light guide; 83. a light shielding member; 831. a first light shielding plate; 832. a second light shielding plate; 833. a light-transmitting cavity; 834. a light-transmitting hole; 84. a lamp shade; 85. a light barrier; 851. a clamping block;

90. lining; 91. an upper liner; 92. a lower liner; 93. and (4) an epoxy board.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to 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; can be mechanically or electrically 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 to 7, the embodiment of the present invention provides a power module casing, which is mainly used for installing a circuit board and other components of a power module, and protecting the circuit board and the power module. Specifically, the power module casing includes a fan assembly 50, an upper casing 10, a lower casing 20 and a panel 30 assembly; the upper shell 10 and the lower shell 20 are folded to form a cavity 60, the circuit board and other power supply components are arranged in the cavity 60, and the fan assembly 50 is positioned in the cavity 60 and plays a role in heat dissipation and cooling of the circuit board and other power supply components; the panel 30 assembly is fixedly connected to the upper case 10 and the lower case 20, respectively, so that the cavity 60 has a relatively complete closed space, thereby better protecting the circuit board and other power components therein.

In addition, the panel 30 assembly also has the function of installing the fan assembly 50, specifically, the panel 30 assembly includes a panel 30 and a fan installation frame 40, the panel 30 is used as an external protection surface and a decoration surface of the casing, is located outside the cavity 60 and is respectively fixedly connected with the upper casing 10 and the lower casing 20, the fan installation frame 40 is located at one side of the cavity 60 close to the panel 30, the fan installation frame 40 is respectively fixedly connected with the panel 30, the upper casing 10 and the lower casing 20, the fan assembly 50 is fixed on the fan installation frame 40, and a gap 54 is formed between the fan assembly 50 and the panel 30, so that the fan assembly 50 is prevented from being directly attached to the panel 30, and the fan assembly 50 is favorable for fanning airflow;

as shown in fig. 1, fig. 2 and fig. 5, a plurality of first ventilation holes 31 corresponding to the fan assembly 50 are disposed on the panel 30, second ventilation holes 14 are disposed on ends of the upper shell 10 and the lower shell 20 away from the panel 30, the first ventilation holes 31 and the second ventilation holes 14 are communicated with the cavity 60 to form an air channel, and the fan assembly 50 is disposed in the air channel to realize forced cooling and heat dissipation by the fan, so that heat in the cavity 60 is dissipated into the cavity 60 more quickly.

The fan assembly 50 of the present embodiment is disposed close to the panel 30 assembly, so as to leave a larger complete space in the cavity 60, reduce the occupied space of the fan assembly 50, and facilitate the installation of the circuit board and other power components.

As shown in fig. 2, a first back plate 13 is disposed on a side of the upper case 10 away from the face plate 30, a second back plate 23 is disposed on a side of the lower case 20 away from the face plate 30, the first back plate 13 is bent and extended toward the lower case 20, the second back plate 23 is bent and extended toward the upper case 10, and a fixing plate 70 is further disposed between the first back plate 13 and the second back plate 23. In order to improve the ventilation effect, a plurality of hexagonal second ventilation holes 14 are uniformly distributed on the first back plate 13, the second back plate 23 and the fixing plate 70.

Preferably, the first vent hole 31 and the second vent hole 14 are hexagonal holes, which increases the vent area in unit area and is beneficial to improving the heat dissipation effect.

Preferably, as shown in fig. 3, the fan assembly 50 includes at least two fans 51, so as to achieve better heat dissipation.

In order to stably mount and fix the fan assembly 50, the fan mounting bracket 40 includes a main body plate 41, at least two fan grooves 42 are formed in the main body plate 41, the fan grooves 42 correspond to the air outlets 52 of the fans 51, fan mounting holes 43 are further formed in the main body plate 41, the fan mounting holes 43 are arranged at positions corresponding to four corners of the fan grooves 42 around the fan grooves 42, fixing holes 53 are formed at four corners of an extension plate of the fans 51, fasteners pass through the fixing holes 53 and the fan mounting holes 43 to fix the fans on the fan mounting bracket 40, the fasteners may be conventional parts such as screws, and the fan mounting holes 43 and the fixing holes 53 may be threaded holes. By adopting the structure, the connection mode between the fan 51 and the main body plate 41 is simple and convenient, quick installation can be realized, the assembly cost is reduced, meanwhile, the fan 51 can be stably installed on the fan installation frame 40, the fan groove 42 can avoid interference on the fan 51, the air opening 52 of the fan 51 is directly communicated with the gap 54 and the first ventilation hole 31, and the ventilation effect is better.

Preferably, as shown in fig. 3, in order to maintain a gap 54 between the fan assembly 50 and the panel 30, the fan mounting bracket 40 includes an extension plate 44, the extension plate 44 extends from the main body plate 41 toward the panel 30, and the width of the gap 54 is equivalent to the width of the extension plate 44.

As shown in fig. 3 and 4, the extension plate 44 is also used for fixing the fan mount 40 to the panel 30, the upper case 10, and the lower case 20. Specifically, a protrusion 441 is disposed on an edge of one side of the extension plate 44 facing the panel 30, a groove 32 is disposed on the panel 30, and the protrusion 441 is inserted into the groove 32 to fixedly connect the fan mounting bracket 40 to the panel 30; taking the main body plate 41 of the fan mount 40 as a square as an example, the cavity 60 formed by the upper case 10 and the lower case 20 is a cube, the area of the main body plate 41 is equal to the cross section of the cavity 60, and therefore, the number of the extension plates 44 is four, including the upper plate, the lower plate, the left plate and the right plate, in this embodiment, the upper case 10 has two symmetrical first connecting edges 11, the first connecting edges 11 are bent and extended toward the lower case 20, the lower case 20 has two symmetrical second connecting edges 21, the second connecting edges 21 are bent and extended toward the upper case 10, therefore, the upper plate is attached and fixed to the inner surface of the upper case 10, the left plate is attached and fixed to the first connecting plate 12 and the second connecting plate 22 on the left side, the right plate is attached and fixed to the first connecting plate 12 and the second connecting plate 22 on the right side, the lower plate is attached and fixed to the inner surface of the lower case 20, and meanwhile, the extension plate 44 is provided with the first fastening holes 442, the fastening members such as screws or bolts penetrate the first fastening holes 442 and the second fastening holes 15, so that the fan mounting bracket 40 is fixedly coupled to the upper and lower cases 10 and 20, and the fan mounting bracket 40 also serves to couple the upper and lower cases 10 and 20. Of course, in other embodiments, the cavity 60 has other shapes, such as a cylinder, a hexagonal prism, etc., the shape of the main body plate 41 is always adapted to the cross section of the cavity 60, such as a circle, a hexagon, etc., the number of the extension plates 44 corresponds to the number of sides of the main body plate 41, and may be 1, 6 or other numbers.

Power module generally includes an indicator light for indicating the operating status of circuit boards and other power components, and thus, in some embodiments, power module chassis includes lamp panel assembly 80, and lamp panel assembly 80 includes lamp panel circuit board 81, light guide 82, shade 83 and lamp shade 84.

Specifically, as shown in fig. 3 and 5, the lamp panel circuit board 81 is located in the cavity 60 and is fixedly connected to the panel 30 through the mounting posts 33; the lamp panel circuit board 81 is provided with a plurality of lamp beads as point light sources, the lamp beads can be LED lamps or patch lamps, the shading member 83 is made of opaque materials, such as black plastic, and the light guide member 82 is made of transparent or semi-transparent materials, such as white plastic or transparent plastic.

The shading part 83 is located between the lamp panel circuit board 81 and the panel 30, as shown in fig. 7, the shading part 83 includes a first shading plate 831 attached to one surface of the panel 30 facing the cavity 60 and a second shading plate 832 extending toward the lamp panel circuit board 81, the second shading plates 832 are arranged at intervals to form a plurality of light transmission cavities 833, lamp beads on the lamp panel circuit board 81 are located between two adjacent second shading plates 832, light holes 834 corresponding to the lamp beads are arranged on the first shading plate 831, the light transmission cavities 833 are communicated with the light holes 834, and light of the lamp beads can only be transmitted in the light transmission cavities 833 and the light holes 834;

the light guide member 82 is sleeved on the second light shielding plate 832 and attached to the first light shielding plate 831, at least part of the light guide member 82 is located in the light transmission cavity 833, and light is guided to cover the light transmission holes 834, so that light of the lamp beads can be transmitted to the side of the lampshade 84, and a phenomenon of light channeling caused by the fact that point light sources of the lamp beads are transmitted to the adjacent light guide member 82 is avoided; in some embodiments, the number of the lamp beads is multiple, and the light guide members 82 in different shapes are correspondingly needed, at this time, the light guide members 82 in different shapes may be of an integrated structure or a split structure, and are respectively sleeved on the second light shielding plate 832.

The lamp shade 84 sets up the one side that deviates from cavity 60 at panel 30, and the quantity of lamp shade 84 corresponds with the lamp pearl quantity on the lamp plate circuit board 81, and simultaneously, the shape of lamp shade 84 also with the shape looks adaptation of light trap 834 and lamp pearl.

Preferably, the fan mounting bracket 40 is provided with an escape groove 45 for escaping the mounting post 33 and the second light shielding plate 832, so as to avoid interference with the mounting of the components such as the circuit board and the light shielding member 83, and to fully utilize the space of the gap 54 between the fan assembly 50 and the panel 30.

Because still there is first ventilation hole 31 on panel 30, and lamp plate assembly 80 establishes the side in first ventilation hole 31, for the light of avoiding lamp plate assembly 80 reveals from first ventilation hole 31, lamp plate assembly 80 still includes barn door 85, and one side of barn door 85 is laminated with panel 30 towards the one side of cavity 60, and the opposite side is laminated with the one side of fan mounting bracket 40 towards panel 30, and barn door 85 is located between light trap 834 and first ventilation hole 31. Preferably, the light barrier 85 is made of a light-impermeable material, such as black plastic.

Preferably, the side surface of the light barrier 85 is provided with a latch 851, correspondingly, the panel 30 or the main body plate 41 is provided with a latch slot 411, the latch 851 is latched into the latch slot 411 to position the light barrier 85 with the panel 30 or the main body plate 41, and the light barrier 85 can be fixed with respect to the panel 30 and the main body plate 41 because the light barrier 85 is clamped between the panel 30 and the main body plate 41. In this embodiment, the engaging groove 411 is disposed on the main body plate 41, and the engaging block 851 is disposed on a side surface of the light-blocking plate 85 facing the main body plate 41.

When the power module is used, the power module needs to be fixed on a system frame, and the fastening structure on the panel 30 of the power module enclosure of this embodiment fixes the power module on the system frame, specifically, as shown in fig. 1, the fastening structure is a release screw 35 and is arranged at an edge corner position of the panel 30, preferably, the release screw 35 is arranged diagonally, so that the fixing effect is ensured, and the number of the release screws 35 is reduced.

In addition, the edge of the panel 30 is provided with a platform 34, the platform 34 protrudes away from the cavity 60, and the fastening structure is provided on the platform 34. The platform 34 is formed by stamping the edge portion of the panel 30, so as to prevent the system frame from being damaged by directly impacting the release screw 35 when the power module is mounted on the system frame.

Preferably, a handle 36 is disposed on a side of the panel 30 away from the cavity 60, and the handle 36 is fixedly connected to the panel 30, so that a user can conveniently take or place the power module.

In the present embodiment, the upper shell 10 and the lower shell 20 are folded to form the cavity 60, and in order to facilitate the positioning of the upper shell 10 and the lower shell 20, as shown in fig. 6, the upper shell 10 has two symmetrical first connecting edges 11, the first connecting edges 11 are bent and extended toward the lower shell 20, the edge of the first connecting edges 11 has a plurality of first connecting plates 12 extending toward the lower shell 20 and arranged at intervals, and the first connecting plates 12 are retracted in a Z-shape toward the cavity 60; the lower shell 20 has two symmetrical second connecting edges 21, the second connecting edges 21 are bent and extended toward the upper shell 10, the edges of the second connecting edges 21 have a plurality of second connecting plates 22 arranged at intervals and extended toward the upper shell 10, and the second connecting plates 22 are retracted toward the cavity 60 in a zigzag manner. Meanwhile, as shown in fig. 1 and fig. 2, the first connecting plates 12 and the second connecting plates 22 are arranged in a staggered manner, so that when the upper shell 10 and the lower shell 20 are folded, the second connecting plates 22 are partially inserted between the adjacent first connecting plates 12 to form a hinge-like structure, the shells connected by the first connecting plates 12 and the second connecting plates 22 are connected with each other in a non-releasable manner under the condition that the shells are completely assembled and cut to be closed, and the first connecting plates 12 and the second connecting plates 22 arranged at intervals can also play a good positioning role, so that the upper shell 10 and the lower shell 20 are convenient to assemble, the stability after assembly is improved, screws for fixing can be reduced, and the visual aesthetic feeling is improved.

Preferably, since the space in the cavity 60 is limited, the upper casing 10 and the lower casing 20 are generally made of metal materials to improve the overall strength of the casing, and therefore, in order to meet the requirement of electrical parameters, as shown in fig. 5, a lining 90 is disposed in the cavity 60, and the lining 90 is attached to the inner surfaces of the upper casing 10 and the lower casing 20 and avoids the position of the fan assembly 50; the lining is made of insulating material; the lining 90 has a corresponding voltage-resistant grade, the lining 90 corresponds to the upper shell 10 and the lower shell 20 and is divided into an upper lining 91 and a lower lining 92, the shape of the upper lining 91 is consistent with that of the upper shell 10, the shape of the lower lining 92 is consistent with that of the lower shell 20, meanwhile, the upper lining 91 is fixedly attached to the inner surface of the upper shell 10, the lower lining 92 is fixedly attached to the inner surface of the lower shell 20, and the upper shell 10, the lower shell 20 and a circuit board and other power supply components are electrically isolated.

Preferably, an epoxy plate 93 is further disposed in the cavity 60, the epoxy plate 93 covers at least a part of the inner surface of the inner liner 90, the epoxy plate 93 has an advantage of puncture resistance relative to the inner liner 90, and the position of the epoxy plate 93 corresponds to the position of the circuit board.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. A power module casing is characterized by comprising a fan assembly, an upper casing, a lower casing and a panel assembly; the upper shell and the lower shell are folded to form a cavity, and the fan assembly is positioned in the cavity;

the panel assembly comprises a panel and a fan mounting frame, the panel is located outside the cavity and is fixedly connected with the upper shell and the lower shell respectively, the fan mounting frame is located on one side, close to the panel, in the cavity, the fan mounting frame is fixedly connected with the panel, the upper shell and the lower shell respectively, the fan assembly is fixed on the fan mounting frame, and a gap is formed between the fan assembly and the panel;

be equipped with on the panel a plurality of with the first ventilation hole that fan assembly corresponds, the epitheca with the inferior valve is kept away from one of panel is served and is equipped with the second ventilation hole, first ventilation hole with the second ventilation hole with the cavity intercommunication.

2. The power module casing of claim 1, wherein the fan assembly comprises at least two fans, the fan mounting bracket comprises a main body plate, at least two fan grooves are formed in the main body plate, the fan grooves correspond to air outlets of the fans, fan mounting holes are formed in the main body plate, the fan mounting holes are arranged at positions corresponding to four corners of the fan grooves around the fan grooves, fixing holes are formed in four corners of an extension plate of each fan, and fasteners penetrate through the fixing holes and the fan mounting holes to fix the fans on the fan mounting bracket.

3. The power module enclosure of claim 2, wherein the fan mount includes an extension plate extending from the body plate in a direction toward the panel, the gap having a width comparable to a width of the extension plate.

4. The power module casing of claim 3, wherein the extension plate has a protrusion at an edge thereof facing the panel, the panel has a groove, and the protrusion is inserted into the groove to fixedly connect the fan mounting bracket to the panel.

5. The power module case of claim 3, wherein the main body plate has a square shape, the number of the extension plates is four, the extension plates extend from four sides of the main body plate toward the panel, and the extension plates are provided with first fastening holes corresponding to second fastening holes of the upper case and the lower case, respectively, so that the fan mounting bracket is fixedly coupled to the upper case and the lower case.

6. The power module enclosure of claim 2, further comprising a lamp panel assembly, the lamp panel assembly including a lamp panel circuit board, a light guide, a light shield, and a light shade,

the lamp panel circuit board is positioned in the cavity and is fixedly connected with the panel through a mounting column;

the light shielding piece is positioned between the lamp panel circuit board and the panel and comprises a first light shielding plate attached to one surface, facing the cavity, of the panel and a second light shielding plate extending towards the lamp panel circuit board, the plurality of second light shielding plates are arranged at intervals, the lamp beads on the lamp panel circuit board are positioned between every two adjacent second light shielding plates, and light holes corresponding to the lamp beads are formed in the first light shielding plate;

the light guide piece is sleeved on the second shading plate and attached to the first shading plate, and the light guide piece covers the light holes;

the lamp shade is arranged on one surface of the panel, which is far away from the cavity, and the number of the lamp shade corresponds to that of the lamp beads on the lamp panel circuit board;

the fan mounting frame is provided with an avoiding groove for avoiding the mounting column and the second light screen.

7. The power module enclosure of claim 6, wherein the lamp panel assembly further comprises a light barrier, one side of the light barrier is attached to the panel towards one side of the cavity, the other side of the light barrier is attached to the fan mount towards one side of the panel, and the light barrier is located between the light-transmitting hole and the first ventilation hole.

8. The power module casing of claim 1 wherein the panel has a platform at an edge thereof, the platform protruding away from the cavity, the platform having a fastening structure thereon;

the fastening structure is a release screw;

the panel deviates from be equipped with the handle in the one side of cavity, the handle with panel fixed connection.

9. The power module casing according to claim 1, wherein the upper casing has two symmetrical first connecting edges, the first connecting edges extend in a bending manner towards the lower casing, the edges of the first connecting edges are provided with a plurality of first connecting plates arranged at intervals and extending towards the lower casing, and the first connecting plates are retracted in a zigzag manner towards the cavity;

the lower shell is provided with two symmetrical second connecting edges, the second connecting edges are bent and extended towards the direction of the upper shell, the edges of the second connecting edges are provided with a plurality of second connecting plates which are arranged at intervals and extended towards the upper shell, and the second connecting plates are retracted towards the direction of the cavity in a Z shape;

the first connecting plates and the second connecting plates are arranged in a staggered mode, so that the second connecting plates are partially inserted between the adjacent first connecting plates when the upper shell and the lower shell are folded.

10. The power module enclosure of claim 1 wherein a liner is disposed within the cavity, the liner conforming to the inner surfaces of the upper and lower shells and avoiding the location of the fan assembly;

the lining is made of an insulating material;

still be equipped with the epoxy board in the cavity, the epoxy board covers part at least the internal surface of inside lining.

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