Drawing type fan support mounting assembly and inverter

Abstract

The utility model belongs to the technical field of power electronic equipment, and particularly relates to a drawing type fan support installation assembly and an inverter, the installation assembly comprises an external frame body and a fan support, the external frame body and the fan support are in sliding connection through a sliding rail assembly, the external frame body further comprises a limiting surface located on one side of the tail end of the sliding rail assembly, and the limiting surface is located on the other side of the sliding rail assembly. At least one connecting block is arranged on the limiting surface, an assembling hole is formed in the center of the connecting block, a flexible anti-sliding piece is arranged in the assembling hole, and a bolt hole is formed in the inner wall of the flexible anti-sliding piece; a limiting plate is arranged at the end, close to the connecting block, of the fan support, at least one first positioning pin is arranged on the limiting plate, and when the fan support slides to the tail end based on the sliding rail assembly, the first positioning pins are pushed into the plug pin holes of the flexible anti-sliding pieces to form limiting fit. Based on flexible connection of the first positioning pin and the flexible anti-sliding piece, vibration generated by indirect driving of rotation of the fan on the connecting end can be reduced, so that noise is reduced, and meanwhile abrasion is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power electronic devices, in particular to a pull-out fan bracket installation component and an inverter. Background Art

[0002] In the current field of power conversion equipment, as a key component, the heat dissipation performance of an inverter directly affects the operation efficiency and stability of the equipment. The side-draw fan inverter design for inverters is widely popular because of its advantages in facilitating the maintenance and replacement of fans. Such inverters usually adopt an external fan bracket structure combined with a guide rail system to be installed on the frame of the inverter to achieve the quick disassembly, assembly and adjustment of the fan module.

[0003] In the existing design of the external fan bracket of the side-draw inverter, although the efficient installation and disassembly of the fan module are realized, its fixing method has limitations. One end of the fan bracket is firmly fixed to the inverter casing by screws, while the other end is connected to the external frame by a rigid clamping method. When the fan runs at high speed, due to the unbalanced dynamic load, this fixing method is extremely likely to cause the bracket to vibrate, exacerbate its wear, and the vibration of the clamping part will inevitably generate noise, which not only reduces the overall operation quality of the equipment, but also may cause unnecessary interference to the surrounding environment. Especially in places with strict noise control requirements, such as data centers, hospitals, etc., this problem is particularly prominent. Summary of the Utility Model

[0004] The utility model provides a pull-out fan bracket installation component, aiming at solving the problems in the prior art that the fan bracket is easy to vibrate due to the way that one end of the fan bracket is fixedly connected to the inverter casing and the other end is rigidly clamped to the external frame, resulting in large noise and wear at the clamping part.

[0005] The utility model is realized as follows. In the first aspect, a pull-out fan bracket installation component is provided, which includes an external frame and a fan bracket. The external frame is slidably connected to the fan bracket through a slide rail assembly. The external frame further includes a limiting surface on one side of the tail end of the slide rail assembly. At least one connecting block is arranged on the limiting surface. An assembly hole is arranged at the center of the connecting block, and a flexible anti-slip member is arranged in the assembly hole. A pin hole is formed on the inner wall of the flexible anti-slip member;

[0006] A limiting plate is arranged at one end of the fan bracket close to the connecting block. At least one first positioning pin is arranged on the limiting plate. When the fan bracket slides to the tail end based on the slide rail assembly, the first positioning pin is pushed into the pin hole of the flexible anti-slip member to form a limiting fit.

[0007] Further, the mounting plate of the fan bracket is provided with a plurality of water drainage holes, mounting openings are formed on both sides of the water drainage holes, a fan is arranged on one side of the mounting opening, and a fan cover is arranged on the other side of the mounting opening.

[0008] Further, the connecting block includes a plurality of positioning holes and connecting holes, and the positioning holes and the connecting holes are distributed in the circumferential direction of the assembly hole.

[0009] Further, the outer frame body further includes a second positioning pin arranged on the side of the limiting surface facing the connecting block, and the second positioning pin is inserted into the positioning hole.

[0010] Further, a through hole is formed on the limiting surface, and the connecting block is fixed to the limiting surface by a connecting member passing through the through hole and the connecting hole.

[0011] Further, the outer frame body further includes a convex platform extending from the bottom plate of the frame body, the upper end surface of the convex platform is flat, and at least one air outlet is provided on the bottom plate of the frame body of the outer frame body, and the air outlet is formed corresponding to the position of the mounting opening.

[0012] Further, the assembly hole is in interference fit with the flexible anti-slip member, and the outer diameter of the first positioning pin is smaller than the inner diameter of the flexible anti-slip member.

[0013] Further, the slide rail assembly includes a slide groove arranged on the outer side of the bottom plate of the outer frame body, and a slide bar arranged on the outer side of the mounting plate of the fan bracket, and the slide bar is placed in the slide groove to form a sliding fit.

[0014] Further, a first fixing hole is provided at the starting end of the slide rail assembly, a second fixing hole is provided on the pulling side of the fan bracket, and the outer frame body is fixedly connected to the outer shell of the inverter by fixing members respectively passing through the first fixing hole and the second fixing hole.

[0015] In a second aspect, an inverter is provided, which includes a main box body and a pull-out fan bracket mounting assembly as described in the first aspect arranged on the main box body.

[0016] Advantages achieved by the present utility model: By providing a pull-out fan bracket mounting assembly, an external frame and a pull-out fan bracket are connected through a connecting block provided on a limiting surface of the external frame, and a flexible anti-slip member is provided in an assembly hole of the connecting block. An insertion pin hole is formed on the inner wall of the flexible anti-slip member. When the fan bracket slides to the end at one end of the connecting block based on a slide rail assembly, a first positioning pin provided on the fan bracket and close to one end of the connecting block will be pushed into the insertion pin hole of the flexible anti-slip member to form a limiting fit. The flexible anti-slip member itself has certain elastic properties and will not form rigid contact with the first positioning pin. When the fan starts to work, due to the flexible connection between the first positioning pin and the flexible anti-slip member, vibrations indirectly generated at the connection end driven by the rotation of the fan can be reduced, thereby reducing noise. At the same time, compared with rigid contact, wear can be significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a pull-out fan bracket mounting assembly provided by an embodiment of the present utility model;

[0018] Figure 2 FIG. 2 is a schematic diagram of the structure of a fan bracket provided by an embodiment of the present utility model;

[0019] Figure 3 FIG. 3 is another schematic diagram of the structure of a fan bracket provided by an embodiment of the present utility model;

[0020] Figure 4 FIG. 4 is a schematic diagram of the structure of a connecting block provided by an embodiment of the present utility model;

[0021] Figure 5 FIG. 5 is a partial schematic diagram of a connection part of a connecting block provided by an embodiment of the present utility model;

[0022] Figure 6 FIG. 6 is a schematic diagram of the structure of an external frame provided by an embodiment of the present utility model;

[0023] Figure 7 FIG. 7 is a side view of a pull-out fan bracket mounting assembly provided by an embodiment of the present utility model.

[0024] Wherein, 1, external frame; 11, limiting surface; 12, second positioning pin; 13, boss; 14, air outlet; 15, first fixing hole; 2, fan bracket; 21, limiting plate; 22, first positioning pin; 23, mounting plate; 24, water drainage hole; 25, mounting opening; 26, fan; 27, fan cover; 28, fan wire binding hole; 29, second fixing hole; 3, slide rail assembly; 31, chute; 32, slide bar; 4, connecting block; 41, assembly hole; 42, flexible anti-slip member; 43, insertion pin hole; 44, positioning hole; 45, connection hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] In this application, a connecting block is provided on the limiting surface of the outer frame to connect the outer frame with the pull-out fan bracket, and a flexible anti-slip member is provided in the assembly hole of the connecting block. The inner wall of the flexible anti-slip member forms a pin hole. When the fan bracket slides to the end at one end of the connecting block based on the slide rail assembly, the first positioning pin provided on the fan bracket and close to one end of the connecting block will be pushed into the pin hole of the flexible anti-slip member to form a limiting fit. The flexible anti-slip member itself has certain elastic properties and will not form a rigid contact with the first positioning pin. When the fan starts to work, due to the flexible connection between the first positioning pin and the flexible anti-slip member, the vibration indirectly driven at the connection end caused by the rotation of the fan can be reduced, thereby reducing noise. At the same time, compared with rigid contact, the wear can be significantly reduced.

[0027] Example 1

[0028] Combined with Figures 1 - 4 As shown in the figure, an embodiment of the present utility model provides a pull-out fan bracket installation assembly, including an outer frame 1 and a fan bracket 2. The outer frame 1 and the fan bracket 2 are slidably connected through a slide rail assembly 3. The outer frame 1 further includes a limiting surface 11 on one side of the end of the slide rail assembly 3. At least one connecting block 4 is provided on the limiting surface 11. The center of the connecting block 4 is provided with an assembly hole 41, and a flexible anti-slip member 42 is provided in the assembly hole 41. The inner wall of the flexible anti-slip member 42 forms a pin hole 43;

[0029] The fan bracket 2 is provided with a limiting plate 21 at one end close to the connecting block 4. At least one first positioning pin 22 is provided on the limiting plate 21. When the fan bracket 2 slides to the end based on the slide rail assembly 3, the first positioning pin 22 is pushed into the pin hole 43 of the flexible anti-slip member 42 to form a limiting fit.

[0030] In this embodiment, combined with Figure 1 As shown in the figure, the outer frame 1 is used to install and fix the fan bracket 2. The outer frame 1 can be fixedly connected to the shell of the inverter through screws or the like to place the fan bracket 2 on the shell of the inverter. The fan bracket 2 is used to fix multiple fans to dissipate heat from the inverter. The slide rail assembly 3 is used to realize the sliding of the fan bracket 2 on the outer frame 1. One end of the outer frame 1 is an opening, and the other end is a limiting surface 11. The fan bracket 2 can be inserted into the outer frame 1 from the opening and move based on the slide rail assembly 3, which not only restricts the freedom of movement of the fan bracket 2 in the front-back direction during the extraction process, but also facilitates the disassembly, assembly and maintenance inspection of the fan bracket 2.

[0031] More specifically, the limiting surface 11 is located on one side of the tail end of the slide rail assembly 3, that is, on the side where the fan bracket 2 reaches the farthest when pushed along the slide rail assembly 3. The limiting surface 11 can limit the position where the fan bracket 2 docks. At least one connecting block 4 is provided on the limiting surface 11. In order to ensure uniform force and connection stability, and considering cost factors, in this embodiment, 2 connecting blocks 4 are provided and symmetrically arranged on the limiting surface 11. Of course, when more fans are installed on the fan bracket 2 and the size of the outer frame 1 permits, more connecting blocks 4 can be provided to ensure stability and sound absorption effects. For example, when 5 fans are installed on the fan bracket 2, 4 or 5 connecting blocks 4 can be provided on the limiting surface 11, etc. There is no unique limitation here, and the number can be adjusted according to the actual situation.

[0032] More specifically, in combination with Figures 2 - 3 As shown, a limiting plate 21 can be provided at one end of the fan bracket 2 close to the connecting block 4. When the fan bracket 2 moves to the farthest end, the limiting plate 21 abuts against the limiting surface 11. A first positioning pin 22 is provided on the limiting plate 21, and the number and shape structure of the first positioning pin 22 correspond to the number and shape structure of the pin holes 43. The first positioning pin 22 on the limiting plate 21 protrudes towards the connecting block 4 and gradually moves into the pin hole 43 of the flexible anti-slip member 42 under the action of thrust, and is in limiting cooperation with the inner wall of the flexible anti-slip member 42, so as to realize the stable connection between the fan bracket 2 and the outer frame 1 through the limiting cooperation.

[0033] More specifically, in combination with Figure 4 As shown, the connecting block 4 can be a cylindrical structure, or a rectangular or polygonal columnar structure, etc. A circular assembly hole 41 can be opened in the center of the connecting block 4, and a flexible anti-slip member 42 is provided in the assembly hole 41, and a circular pin hole 43 is formed on the inner wall of the flexible anti-slip member 42. Among them, the flexible anti-slip member 42 can be a silica gel sleeve.

[0034] As a possible embodiment, both ends of the silica gel sleeve can include limiting rings, and the limiting rings are placed outside the two end faces of the connecting block 4 to achieve limitation, which is beneficial to ensuring that the inner wall of the silica gel sleeve will not fall off easily under the action of friction.

[0035] In the embodiment of the present utility model, a connecting block 4 is arranged on the limiting surface 11 of the outer frame 1 to connect the outer frame 1 with the pull-out fan bracket 2. A flexible anti-slip member 42 is arranged in the assembly hole 41 of the connecting block 4, and a pin hole 43 is formed on the inner wall of the flexible anti-slip member 42. When the fan bracket 2 slides to the end at one end of the connecting block 4 based on the slide rail assembly 3, the first positioning pin 22 arranged on the fan bracket 2 and close to one end of the connecting block 4 will be pushed into the pin hole 43 of the flexible anti-slip member 42 to form a limiting fit. The flexible anti-slip member 42 itself has certain elastic properties and will not form rigid contact with the first positioning pin 22. When the fan starts to work, due to the flexible connection between the first positioning pin 22 and the flexible anti-slip member 42, the vibration indirectly driven at the connection end caused by the rotation of the fan can be reduced, thereby reducing noise. At the same time, compared with rigid contact, the wear can be significantly reduced.

[0036] Example 2

[0037] Combined with Figures 2 - 3 As shown, in this embodiment, the mounting plate 23 of the fan bracket 2 is provided with a plurality of water discharge holes 24. Mounting openings 25 are formed on both sides of the water discharge holes 24. A fan 26 is arranged on one side of the mounting opening 25, and a fan cover 27 is arranged on the other side of the mounting opening 25.

[0038] Specifically, the mounting plate 23 may refer to the bottom plate for mounting the fan 26. A plurality of water discharge holes 24 may be arranged on the mounting plate 23. The water discharge holes 24 may have structures such as oval, circular or rectangular, and the plurality of water discharge holes 24 may be arranged in an equidistant queue layout. For example: 5 rows and 3 columns, 2 rows and 4 columns, etc. Mounting openings 25 may be formed on both sides of the water discharge holes 24. The size and shape of the mounting openings 25 are formed corresponding to the fan 26 to ensure that the heat discharged by the fan 26 can smoothly diffuse and be discharged outwards through the mounting openings 25. The side of the mounting opening 25 where the fan 26 is arranged is the heat absorption surface facing the inverter, and the side where the fan cover 27 is arranged is the heat dissipation surface. The fan cover 27 and the fan 26 can be fixed on the mounting plate 23 of the fan bracket 2 by self-tapping screws. When there are more than 2 fans 26, there will also be multiple groups of water discharge holes 24, and a group can be arranged between every two fans 26.

[0039] Optionally, at least one group of fan wire binding holes 28 is formed on one side of each fan 26. The fan wires can be fixed on the mounting plate 23 of the fan bracket 2 by using a cable tie to pass through the fan wire binding holes 28 to achieve wire fixing. Among them, each group of fan wire binding holes 28 includes 2 holes.

[0040] In this embodiment, a plurality of water drainage holes 24 are formed between every two fans 26 on the mounting plate 23, facilitating the rapid drainage of rainwater falling above the fans 26 from the inside of the outer frame 1. By providing the fan cover 27, it is possible to prevent personnel from touching the external fans 26, improving safety. At the same time, it can play a role in concentrating the airflow, making the airflow generated by the fans 26 more concentrated to meet different usage requirements.

[0041] Example 3

[0042] Combined with Figures 4 - 5 As shown, in this embodiment, the connecting block 4 includes a plurality of positioning holes 44 and connecting holes 45, and the positioning holes 44 and the connecting holes 45 are distributed in the circumferential direction of the assembly hole 41. The outer frame 1 further includes a second positioning pin 12 provided on one side of the limiting surface 11 facing the connecting block 4, and the second positioning pin 12 passes through the positioning holes 44. A through hole is formed on the limiting surface 11, and the connecting block 4 is fixed to the limiting surface 11 by a connecting member passing through the through hole and the connecting hole 45.

[0043] Specifically, to ensure the installation stability between the fan bracket 2 and the outer frame 1, a plurality of positioning holes 44 and connecting holes 45 are formed in the connecting block 4 in the same direction as the assembly hole 41. At the same time, the positioning holes 44 are symmetrically arranged and the connecting holes 45 are symmetrically arranged, which can increase the connection stability. For example: two positioning holes 44 and two connecting holes 45 are formed, and the four holes are equally spaced and symmetrically arranged in the circumferential direction of the assembly hole 41. Among them, the connecting hole 45 can be a threaded hole.

[0044] Specifically, a second positioning pin 12 is provided on one side of the limiting surface 11 of the outer frame 1 facing the connecting block 4. The second positioning pin 12 is arranged corresponding to the number and structure of the positioning holes 44, with one end fixed to the limiting surface 11 and the other end inserted into the positioning holes 44, realizing the positioning of the connecting block 4 and the outer frame 1. Among them, the second positioning pin 12 can be integrally formed with the limiting surface 11 or can be detachably connected. The above-mentioned connecting member includes a screw. A through hole (not shown) can be formed on the limiting surface 11. By passing the screw through the through hole on the limiting surface 11 and the connecting hole 45 on the connecting block 4, the connecting block 4 is fixed to the limiting surface 11 of the outer frame 1, realizing the fixing function.

[0045] In this embodiment, by symmetrically arranging a plurality of positioning holes 44 and connecting holes 45 in the same direction and at equal intervals on the connecting block 4 with respect to the assembly hole 41, and fixing one end of the second positioning pin 12 to the limiting surface 11 and inserting the other end into the positioning holes 44, the positioning of the connecting block 4 and the outer frame 1 is realized, which can improve the positioning accuracy. And by using a connecting member to pass through the through hole on the limiting surface 11 and the connecting hole 45 on the connecting block 4 to fix the connecting block 4 to the limiting surface 11 of the outer frame 1, it is beneficial to improve the installation stability between the fan bracket 2 and the outer frame 1.

[0046] Example 4

[0047] Combined with Figures 6 - 7 As shown, in this embodiment, the outer frame 1 further includes a boss 13 extending from the bottom plate of the frame. The upper end surface of the boss 13 is flat. The bottom plate of the outer frame 1 is provided with at least one air outlet 14, and the position of the air outlet 14 corresponds to the position of the mounting opening 25 and is opened accordingly.

[0048] Specifically, considering that the inverter housing for installing the outer frame 1 is flat, in order to stably install the outer frame 1 on the inverter housing, a boss 13 with a flat upper end surface can be extended upward from the bottom plate of the frame.

[0049] As a possible implementation manner, fixing side strips can be respectively arranged on the symmetric edges on both sides of the boss 13, and the protruding size of the extended boss 13 is adapted to the size of the upper end surface of the inverter, so as to ensure that when the boss 13 of the outer frame 1 is placed on the upper end surface of the inverter, the upper end surface of the boss 13 fits better with the upper end surface of the inverter. At the same time, the fixing side strips on both sides can be stuck to the side surfaces adjacent to the upper end surface of the inverter, thereby improving the installation stability between the outer frame 1 and the inverter. In addition, an air outlet 14 can be provided at the position of the mounting opening 25 corresponding to the fan 26 on the bottom plate of the frame, so that the heat absorbed by the fan 26 can be smoothly discharged outside the outer frame 1.

[0050] In this embodiment, by extending the boss 13 with a flat upper end surface upward from the bottom plate of the frame, the outer frame 1 and the inverter are adapted on the installation surface, which is beneficial to stably installing the outer frame 1 on the inverter housing; by providing the air outlet 14 at the position of the mounting opening 25 corresponding to the fan 26 on the bottom plate of the frame, it can ensure that the heat is smoothly discharged outside the outer frame 1.

[0051] Example 5

[0052] In this embodiment, the assembly hole 41 and the flexible anti-slip member 42 are in interference fit, and the outer diameter of the first positioning pin 22 is smaller than the inner diameter of the flexible anti-slip member 42.

[0053] Specifically, when the first positioning pin 22 passes through the pin hole 43 in the flexible anti-slip member 42, the inner wall of the flexible anti-slip member 42 will be squeezed. By making the flexible anti-slip member 42 in interference fit with the assembly hole 41, even if the inner wall of the flexible anti-slip member 42 is subjected to frictional force, the flexible anti-slip member 42 is not likely to fall off from the assembly hole 41, ensuring the installation stability of the flexible anti-slip member 42. Further, the outer diameter of the first positioning pin 22 can be controlled to be smaller than the inner diameter of the flexible anti-slip member 42. For example, the range of the outer diameter of the first positioning pin 22 being smaller than the inner diameter of the flexible anti-slip member 42 is 0.5 - 0.7 mm. In this embodiment, the outer diameter of the first positioning pin 22 is 0.6 mm smaller than the inner diameter of the flexible anti-slip member 42, so that the movement space of the fan bracket 2 on the side of the limiting plate 21 is limited within the inner diameter range of the silica gel sleeve.

[0054] In this embodiment, by making the flexible anti-slip member 42 in interference fit with the assembly hole 41, even if the inner wall of the flexible anti-slip member 42 is subjected to frictional force, the flexible anti-slip member 42 is not likely to fall off from the assembly hole 41, ensuring the installation stability of the flexible anti-slip member 42; by controlling the outer diameter of the first positioning pin 22 to be smaller than the inner diameter of the flexible anti-slip member 42, it can be ensured that the movement space of the fan bracket 2 on the side of the limiting plate 21 is limited within the inner diameter range of the silica gel sleeve.

[0055] Example 6

[0056] Combined with Figure 1 、 Figure 2 and Figure 6 As shown, in this embodiment, the starting end of the slide rail assembly 3 is provided with a first fixing hole 15, and the pulling side of the fan bracket 2 is provided with a second fixing hole 29. The outer frame 1 and the housing of the inverter are fixedly connected by fixing members passing through the first fixing hole 15 and the second fixing hole 29 respectively.

[0057] Specifically, at least one first fixing hole 15 can be opened at the starting end of the slide rail assembly 3. By using fixing members such as screws to pass through the first fixing hole 15, it is beneficial to connect the outer frame 1 to the inverter more stably. At the same time, at least one second fixing hole 29 can be opened at the pulling side of the fan bracket 2. By using fixing members such as screws to pass through the second fixing hole 29, it is beneficial to connect the fan bracket 2 to the inverter more stably.

[0058] In this embodiment, by fixing members passing through the first fixing hole 15 and the second fixing hole 29 respectively to fixedly connect the outer frame 1 and the housing of the inverter, the stability can be improved, and the vibration generated when the fan 26 works can be reduced, and the noise can be decreased.

[0059] Example 7

[0060] Combined with Figure 1 、 Figure 2 andFigure 6 As shown in Figure 6 , in this embodiment, the slide rail assembly 3 includes a chute 31 provided on the outer side of the frame bottom plate of the outer frame 1, and a slide bar 32 provided on the outer side of the mounting plate 23 of the fan bracket 2. The slide bar 32 is placed in the chute 31 to form a sliding fit.

[0061] Specifically, one end of the outer frame 1 is open, and the other end is provided with a limiting surface 11 for limiting and mounting the connecting block 4. The chute 31 is arranged at both edge positions of the frame bottom plate of the outer frame 1, and both ends extend to the opening of the outer frame 1 and the limiting surface 11. Among them, the chute 31 can be a straight rail.

[0062] More specifically, the outer edge side of the mounting plate 23 of the fan bracket 2 is provided with a slide bar 32 whose direction corresponds to the chute 31 and faces the chute 31. The shape, size and other structures of the slide bar 32 are set according to the structure of the chute 31, so that the slide bar 32 can smoothly enter the chute 31 and thus perform a pulling and sliding movement on the chute 31.

[0063] In some examples, in order to save costs, a plurality of equally spaced sliders facing the chute 31 can also be provided on the outer side of the mounting plate 23 of the fan bracket 2, and the sliders slide in the chute 31.

[0064] In some examples, only one chute and one slide bar can be provided, or two or more groups of chutes and slide bars can be provided to enhance the pulling ability and increase the pulling speed.

[0065] In this embodiment, by setting the slide rail assembly 3, the pulling and sliding of the fan bracket 2 in the outer frame 1 is realized. This not only limits the degree of freedom of the fan bracket 2 in the front-back direction during the extraction process, but also makes it more convenient for the disassembly, assembly, maintenance and inspection of the fan bracket 2.

[0066] Example 8

[0067] This embodiment provides an inverter, which includes a main box body and a pull-out type fan bracket mounting assembly as described in the above embodiment provided on the main box body.

[0068] In this embodiment, the main box body may refer to the inverter housing in which various circuit modules are installed. The pull-out fan bracket mounting assembly proposed in the above embodiment is fixedly connected to the main box body through fixing parts, etc., so as to use the fan in the pull-out fan bracket mounting assembly to dissipate heat from the working modules inside the main box body and ensure the working performance of each module. Among them, for a pull-out fan bracket mounting assembly, a connecting block 4 is arranged on the limiting surface 11 of the outer frame body 1 to connect the outer frame body 1 with the pull-out fan bracket 2, and a flexible anti-slip part 42 is arranged in the assembly hole 41 of the connecting block 4. An insertion pin hole 43 is formed on the inner wall of the flexible anti-slip part 42. When the fan bracket 2 slides to the end at one end of the connecting block 4 based on the slide rail assembly 3, the first positioning pin 22 arranged on the fan bracket 2 and close to one end of the connecting block 4 will be pushed into the insertion pin hole 43 of the flexible anti-slip part 42 to form a limiting fit. The flexible anti-slip part 42 itself has certain elastic properties and will not form a rigid contact with the first positioning pin 22. When the fan 26 starts to work, due to the flexible connection between the first positioning pin 22 and the flexible anti-slip part 42, the vibration indirectly generated by the rotation of the fan 26 at the connection end can be reduced, thereby reducing noise. At the same time, compared with rigid contact, the wear can be significantly reduced. In this regard, the inverter including a pull-out fan bracket mounting assembly provided in this embodiment can also achieve the above-mentioned various embodiments and achieve the same technical effects, which will not be elaborated here.

[0069] In the embodiment of the present utility model, a flexible anti-slip member 42 is provided in the assembly hole 41 of the connection block 4. A pin hole 43 is formed on the inner wall of the flexible anti-slip member 42. When the fan bracket 2 slides to the end at one end of the connection block 4 based on the slide rail assembly 3, the first positioning pin 22 provided on the fan bracket 2 and close to one end of the connection block 4 will be pushed into the pin hole 43 of the flexible anti-slip member 42 to form a limit fit. The flexible anti-slip member 42 has elastic performance. When the fan 26 starts to work, due to the flexible connection between the first positioning pin 22 and the flexible anti-slip member 42, the vibration indirectly driven at the connection end caused by the rotation of the fan 26 can be reduced, thereby reducing noise. At the same time, compared with rigid contact, the wear can be significantly reduced. By providing a drain hole 24, it is convenient to quickly drain the rainwater falling above the fan 26 from the inside of the outer frame 1. By providing a fan cover 27, the safety can be improved and the air flow can be concentrated. By symmetrically providing a plurality of positioning holes 44 and connection holes 45 on the connection block 4 in the same direction as and at equal intervals from the assembly hole 41, and respectively cooperating with the second positioning pin 12 and screws, the connection block 4 can be positioned with the outer frame 1 and the connection block 4 can be fixed on the limiting surface 11 of the outer frame 1. By extending a boss 13 with a flat upper end surface upward from the bottom plate of the frame, and respectively passing through the first fixing hole 15 and the second fixing hole 29 with fixing members, the outer frame 1 is fixedly connected to the outer shell of the inverter, which is beneficial to stably installing the outer frame 1 on the outer shell of the inverter and reducing the vibration generated when the fan 26 works, and reducing noise.

[0070] It should be understood that the terms "first", "second", etc. in the description and claims of the present utility model or in the above drawings are used to distinguish different objects, rather than to describe a specific order. The mention of "embodiment" in this article means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present utility model. "Plurality" means two or more. "And / or" is merely a variable relationship describing associated objects, indicating that three relationships may exist. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0071] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A pull-out fan bracket installation component, including an external frame and a fan bracket, the external frame and the fan bracket are slidably connected through a slide rail component, characterized in that, The outer housing further includes a limiting surface located on one side of the tail end of the slide rail assembly. At least one connecting block is provided on the limiting surface. An assembly hole is provided at the center of the connecting block, and a flexible anti-slip member is provided in the assembly hole. A pin hole is formed on the inner wall of the flexible anti-slip member; The fan bracket is provided with a limiting plate at one end close to the connecting block. At least one first positioning pin is provided on the limiting plate. When the fan bracket slides to the tail end based on the slide rail assembly, the first positioning pin is pushed into the pin hole of the flexible anti-slip member to form a limiting fit.

2. The pull-out type fan bracket mounting assembly according to claim 1, characterized in that, The mounting plate of the fan bracket is provided with a plurality of water drainage holes. Installation openings are formed on both sides of the water drainage holes. A fan is provided on one side of the installation opening, and a fan cover is provided on the other side of the installation opening.

3. The pull-out type fan bracket mounting assembly according to claim 1, characterized in that, The connecting block includes a plurality of positioning holes and connecting holes, and the positioning holes and the connecting holes are distributed in the circumferential direction of the assembly hole.

4. The pull-out type fan bracket mounting assembly according to claim 3, wherein, The outer housing further includes a second positioning pin provided on the side of the limiting surface facing the connecting block, and the second positioning pin passes through the positioning hole.

5. The pull-out type fan bracket mounting assembly according to claim 3, wherein A through hole is formed on the limiting surface, and the connecting block is fixed to the limiting surface by a connecting member passing through the through hole and the connecting hole.

6. The pull-out type fan bracket mounting assembly according to claim 2, wherein, The outer housing further includes a convex platform extending from the bottom plate of the housing. The upper end surface of the convex platform is flat. At least one air outlet is provided on the bottom plate of the housing of the outer housing, and the air outlet is formed corresponding to the position of the installation opening.

7. A pull-out fan bracket mounting assembly according to any one of claims 1-6, characterized in that, The assembly hole and the flexible anti-slip member are in interference fit, and the outer diameter of the first positioning pin is smaller than the inner diameter of the flexible anti-slip member.

8. A pull-out fan bracket mounting assembly according to any one of claims 1-6, characterized in that, The slide rail assembly includes a chute provided on the outer side of the bottom plate of the outer housing, and a slide bar provided on the outer side of the mounting plate of the fan bracket. The slide bar is placed in the chute to form a sliding fit.

9. A pull-out fan bracket mounting assembly according to any one of claims 1-6, characterized in that The starting end of the slide rail assembly is provided with a first fixing hole, and the pulling side of the fan bracket is provided with a second fixing hole. The outer housing and the housing of the inverter are fixedly connected by a fixing member passing through the first fixing hole and the second fixing hole respectively.

10. An inverter, characterized in that, It includes a main box body and a pull-out fan bracket mounting assembly as described in any one of claims 1 to 9 provided on the main box body.

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