FFU fan convenient to replace

Abstract

The utility model discloses an FFU (fan filter unit) convenient to replace, relates to the technical field of FFU, and aims to solve the problems that in the use process of an existing FFU, fan faults are inevitably caused, so that the faulted fan needs to be replaced, and the use cost is low. According to a traditional replacement mode, installation personnel need to use a screwdriver to disassemble an air inlet cover or an air ring, then disassemble an internal fan fixing screw and take out a fault fan, the fan can be taken out only by completely disassembling a fan fixing piece, efficiency is low, and replacement steps are tedious. An opening is formed in the center of the frame; the fan module is arranged at the upper end of the opening, the fan module moves up and down along the opening, and the fan module comprises a mesh enclosure and a fan body located at the lower end of the mesh enclosure; the bottom plate is arranged at the lower end of the fan body, reinforcing connecting frames are arranged at the connecting positions of corners between the bottom plate and the mesh enclosure, an air inlet ring is arranged between the upper end of the fan body and the mesh enclosure, and a fixing edge is arranged at the edge of the mesh enclosure.

Description

Technical Field

[0001] The utility model relates to the technical field of FFU fans, in particular to an FFU fan which is easy to replace. Background Art

[0002] FFU fans are widely used in clean rooms, clean workbenches, clean production lines, assembled clean rooms and local Class 100 applications;

[0003] For example, the Chinese patent with announcement number CN206409437U (a kind of FFU fan impeller guard): including a fixing hole at each of the four corners of the base, a socket connected up and down at the center of the base, the socket is of rectangular structure, a right-angle joint is provided at each of the four corners of the base near the socket, the tops of the four right-angle joints are connected with a limited cover plate, the two adjacent right-angle joints are symmetrical to each other, and a safety mesh is provided between them; the right-angle joint is composed of two right-angle sides set at an angle of 90 degrees, and the right-angle side is provided with a plug-in slot that runs through the top and side thereof, and the end of the safety mesh is plugged into the plug-in slot. This FFU fan impeller guard has a simple structure, with a closed limited cover plate at the top and a safety mesh on the side. Air enters from the safety mesh on the side, which can prevent debris from entering from the top of the guard, prevent machine damage, and increase service life.

[0004] However, fan failure is inevitable during the use of existing FFU fans, so the faulty fan needs to be replaced. The traditional replacement method requires the installer to use a screwdriver to dismantle the air inlet cover or the air ring and then remove the internal fan fixing screws to remove the faulty fan. The fan fixings need to be completely disassembled to remove the fan, which is inefficient and the replacement steps are cumbersome. Therefore, it does not meet the existing needs. In this regard, we propose an FFU fan that is easy to replace. Utility Model Content

[0005] The purpose of the utility model is to provide an FFU fan that is easy to replace, so as to solve the problem that fan failure will inevitably occur during the use of the existing FFU fan mentioned in the above background technology, so the faulty fan needs to be replaced. The traditional replacement method requires the installer to use a screwdriver to disassemble the air inlet cover or the wind ring and then disassemble the internal fan fixing screws to remove the faulty fan. The fan fixing parts need to be completely disassembled to remove the fan, which is inefficient and has cumbersome replacement steps.

[0006] To achieve the above object, the utility model provides the following technical solution: an FFU fan that is easy to replace, comprising: a frame, wherein an opening is provided at the center of the frame;

[0007] Also includes:

[0008] A fan module is arranged at the upper end of the opening, and the fan module moves up and down along the opening, and the fan module includes a mesh cover and a fan body located at the lower end of the mesh cover;

[0009] A bottom plate is arranged at the lower end of the fan body, a reinforcing connecting frame is arranged at the connection of the corner between the bottom plate and the mesh cover, and an air inlet ring is arranged between the upper end of the fan body and the mesh cover.

[0010] Preferably, a fixed edge is provided at the edge of the mesh cover, and the fixed edge is bent into shape, and the fixed edge is fixed to the frame by external screws.

[0011] Preferably, a grid is provided at the center of the upper end surface of the mesh cover, and second handles are provided on both sides of the grid, and the second handles are fixed to the mesh cover by external screws.

[0012] Preferably, two ends of the reinforcing connecting frame are respectively threadedly fixed to the bottom plate and the mesh cover by external screws, and four reinforcing connecting frames are provided.

[0013] Preferably, the fan body includes fan blades, a wind cover located at the upper end of the fan blades and a drive motor, and the output end of the drive motor drives the fan blades to rotate.

[0014] Preferably, shock-absorbing reinforcement strips are provided at the inner corners of the frame, a mounting edge of an integral structure is provided on one side of the shock-absorbing reinforcement strip, and the mounting edge is fixed to the frame by external screws.

[0015] Preferably, knife edges are provided on all four sides of the frame, first handles are provided on the upper ends of both sides of the frame, and the first handles are fixed to the frame by external screws, and a blue box is provided on one side of the first handle.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model sets an opening at the center of the frame, the fan body is located between the bottom plate and the mesh cover, and the wind cover is in contact with the air inlet circle, and the two ends of the strengthening connection frame are respectively fixed to the bottom plate and the mesh cover by external screws, so as to fix the fan body, thus forming a fan module, aligning the fan module with the opening, slowly putting it to the bottom, and fixing the fixed edge with the frame by the external screws, thus realizing the fixation of the fan module and the frame. When a fan failure occurs during the use of the FFU fan, it is necessary to remove the screws of the fixed edge, and then pull the second handle upward to take out the fan module, and directly replace the new fan module. It is simple and convenient, which changes the working method of the installer, thereby improving the installation efficiency, and solves the problem that the fan failure will inevitably occur during the use of the existing FFU fan, so the faulty fan needs to be replaced. The traditional replacement method requires the installer to use a screwdriver to disassemble the air inlet cover or the air circle and then disassemble the internal fan fixing screws to take out the faulty fan. The fan fixing parts need to be completely disassembled to take out the fan, which is inefficient and has cumbersome replacement steps.

[0018] 2. By setting a grid at the center of the upper end of the mesh cover, the air inlet circle is protected to prevent large debris from entering, thereby improving protection and safety. Second handles are set on both sides of the grid. The second handles are fixed to the mesh cover by external screws. When removing and reinstalling the fan module, the second handles are convenient for personnel to lift the fan module for transportation, which improves the convenience of transportation compared to holding it. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model when viewed from above;

[0021] Figure 3 This is a schematic diagram of the mesh cover structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the main structure of the fan of the utility model;

[0023] In the figure: 1. frame; 2. opening; 3. fan module; 4. first handle; 5. blue box; 6. knife edge; 7. shock-absorbing reinforcement strip; 8. installation edge; 9. mesh cover; 10. grid; 11. fixed edge; 12. fan body; 13. bottom plate; 14. reinforced connecting frame; 15. air inlet ring; 16. wind cover; 17. drive motor; 18. second handle; 19. fan blade. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 , the utility model provides an embodiment: an FFU fan that is easy to replace, comprising: a frame 1, an opening 2 is provided at the center of the frame 1;

[0026] Also includes:

[0027] A fan module 3 is arranged at the upper end of the opening 2, and the fan module 3 moves up and down along the opening 2. The fan module 3 includes a mesh cover 9 and a fan body 12 located at the lower end of the mesh cover 9;

[0028] A bottom plate 13 is arranged at the lower end of the fan body 12, a reinforcing connecting frame 14 is arranged at the connection between the bottom plate 13 and the mesh cover 9 at the corner, an air inlet ring 15 is arranged between the upper end of the fan body 12 and the mesh cover 9, a fixed edge 11 is arranged at the edge of the mesh cover 9, and the fixed edge 11 is bent into shape, and the fixed edge 11 is fixed to the frame 1 by external screws, the fan body 12 includes a fan blade 19, a fan cover 16 located at the upper end of the fan blade 19 and a driving motor 17, and the output end of the driving motor 17 drives the fan blade 19 to rotate, the two ends of the reinforcing connecting frame 14 are respectively threadedly fixed to the bottom plate 13 and the mesh cover 9 by external screws, and four reinforcing connecting frames 14 are arranged.

[0029] The fan body 12 is located between the base plate 13 and the mesh cover 9, and the wind cover 16 is in contact with the air inlet circle 15. The two ends of the reinforced connecting frame 14 are respectively fixed to the base plate 13 and the mesh cover 9 by external screws, thus forming a fan module 3. The fan module 3 is aligned with the opening 2 and inserted to the bottom. The fixed edge 11 is fixed to the frame 1 by external screws. When a fan failure occurs during the use of the FFU fan, when the failed fan needs to be replaced, it is only necessary to remove the screws of the fixed edge 11, and then take out the fan module 3, and directly replace it with a new fan module 3. This is simple and convenient, which changes the working method of the installer and thus improves the installation efficiency.

[0030] See also Figure 1 A grid frame 10 is arranged at the center of the upper end surface of the mesh cover 9, and second handles 18 are arranged on both sides of the grid frame 10. The second handles 18 are fixed to the mesh cover 9 by external screws. The fan module 3 can be taken out by pulling the second handles 18 upwards.

[0031] See also Figure 2A shock-absorbing reinforcement strip 7 is provided at each inner corner of the frame 1, and a mounting edge 8 of an integral structure is provided on one side of the shock-absorbing reinforcement strip 7. The mounting edge 8 is fixed to the frame 1 by external screws to improve the overall shock-absorbing effect and the stability of use.

[0032] See also Figure 1 The four sides of the frame 1 are all provided with knife edges 6, the upper ends of both sides of the frame 1 are all provided with first handles 4, and the first handles 4 are fixed to the frame 1 by external screws, and a blue box 5 is provided on one side of the first handle 4.

[0033] Working principle: When in use, the fan body 12 is located between the base plate 13 and the mesh cover 9, and the wind cover 16 is in contact with the air inlet circle 15. The two ends of the reinforcing connecting frame 14 are respectively fixed to the base plate 13 and the mesh cover 9 by external screws, which fixes the fan body 12, thus forming the fan module 3. Align the fan module 3 with the opening 2 and slowly put it in to the bottom. The fixed edge 11 is fixed to the frame 1 by external screws. When a fan failure occurs during the use of the FFU fan, when the faulty fan needs to be replaced, it is only necessary to remove the screws of the fixed edge 11 and then pull the second handle 18 upwards to take out the fan module 3 and directly replace it with a new fan module 3. This is simple and convenient, which changes the working method of the installer and thus improves the installation efficiency.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A FFU fan that is easy to replace, comprising a frame (1), wherein an opening (2) is provided at the center of the frame (1); Features: Also includes: A fan module (3) is arranged at the upper end of the opening (2), and the fan module (3) moves up and down along the opening (2), and the fan module (3) comprises a mesh cover (9) and a fan body (12) located at the lower end of the mesh cover (9); A bottom plate (13) is arranged at the lower end of the fan body (12); a reinforcing connecting frame (14) is arranged at the corner connection between the bottom plate (13) and the mesh cover (9); an air inlet ring (15) is arranged between the upper end of the fan body (12) and the mesh cover (9); a fixed edge (11) is arranged at the edge of the mesh cover (9); and the fixed edge (11) is bent into shape; the fixed edge (11) is fixed to the frame (1) by external screws.

2. The easily replaceable FFU fan according to claim 1, characterized in that: A mesh frame (10) is provided at the center of the upper end surface of the mesh cover (9), and second handles (18) are provided on both sides of the mesh frame (10), and the second handles (18) are fixed to the mesh cover (9) by external screws.

3. The easily replaceable FFU fan according to claim 1, characterized in that: The two ends of the reinforcing connection frame (14) are respectively threadedly fixed to the bottom plate (13) and the mesh cover (9) by external screws, and four reinforcing connection frames (14) are provided.

4. The easily replaceable FFU fan according to claim 1, characterized in that: The fan body (12) comprises a fan blade (19), a fan cover (16) located at the upper end of the fan blade (19), and a drive motor (17), and the output end of the drive motor (17) drives the fan blade (19) to rotate.

5. The easily replaceable FFU fan according to claim 1, characterized in that: Shock-absorbing reinforcement strips (7) are provided at the inner corners of the frame (1), and a mounting edge (8) of an integral structure is provided on one side of the shock-absorbing reinforcement strip (7), and the mounting edge (8) is fixed to the frame (1) by external screws.

6. The easily replaceable FFU fan according to claim 1, characterized in that: The four sides of the frame (1) are provided with knife edges (6), the upper ends of both sides of the frame (1) are provided with first handles (4), and the first handles (4) are fixed to the frame (1) by external screws, and a blue box (5) is provided on one side of the first handle (4).

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