Novel centrifugal fan box

Abstract

The utility model discloses a novel centrifugal fan box. A driving motor is fixed to the side extending end of the novel centrifugal fan box. A bottom frame and a box body are fixed on the underframe; the box body is composed of four stand columns on the upper portion of a bottom frame, side plates and a top plate. The top plate is fixed to the tops of the four stand columns jointly, the right-angle flanges are arranged on the two sides of the external corners of the stand columns, supporting or riveting of the side plates is achieved through the right-angle flanges, riveting points of the structure are located on the inner side, fixing points cannot be seen on the appearance, and the appearance is neat and free of riveting traces; a fan module is fixed in the box body, and an air inlet and an air outlet corresponding to the fan module are formed in the box body; the driving motor is arranged at the side parts of the air outlet and the air inlet and is connected with the fan module to realize driving, so that the influence of the driving motor on the air outlet efficiency and the air inlet efficiency can be avoided; in addition, the fixing mode of the driving motor is improved, and the improved fixing mode enables the driving motor to operate more stably and to be higher in safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan boxes, and in particular relates to a novel centrifugal fan box. Background Art

[0002] The structure of the existing fan box is usually of the external riveted type, and the overall riveting forming of the fan box is achieved by riveting the outer frame. However, this type of fan box has technical disadvantages, which are reflected in: 1. In some high-end centrifugal fan box products, the external frame and the box surface are required to be neat and smooth, but the existing fan box of this type cannot meet the above requirements; 2. The drive motor of the existing centrifugal fan box is fixed on the side of the air outlet or the side of the air inlet. This structure affects the air intake efficiency; 3. After the fan on the existing fan box is fixed, it is easy to become loose due to vibration when it rotates at a high frequency. When this looseness cannot be automatically compensated by the belt, it will cause drive eccentricity and motor skew, and eventually cause the belt to break or even the motor to be scrapped.

[0003] In view of the above-mentioned drawbacks, as technicians in this industry, it is very necessary to improve the structure of the centrifugal fan box in the prior art. Through structural improvement, various drawbacks existing in the prior art can be solved. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a new centrifugal fan box with a novel structural design. By adopting the inner column flanging process, the riveting points are set on the inner side, and a pressure plate structure is adopted on the outer side to facilitate assembly and disassembly; by changing the motor installation method to side installation, the fan is prevented from affecting the air inlet and outlet; a novel motor fixing method is adopted to prevent the motor from swinging in a fixed state, thereby avoiding instability at the drive end.

[0005] To achieve the above technical objectives, the utility model adopts the following scheme: a new type of centrifugal fan box, which includes a base frame, the base frame is provided with a side extension end, and a drive motor is fixed on the side extension end; a bottom frame and a box body are fixed on the base frame; the box body is composed of four columns, side panels and a top panel on the upper part of the bottom frame; the top panel is commonly fixed to the top of the four columns, and the columns include column positive angles, and right-angle flanges are provided on both sides of the column positive angles, and the side panels are supported or riveted by the right-angle flanges; a fan module is fixed in the box body, and an air inlet and an air outlet are provided on the box body corresponding to the fan module; the drive motor is arranged on the sides of the air outlet and the air inlet and is connected to the fan module to achieve drive.

[0006] A motor fixing frame is arranged on the side extension end, and a T-slot is arranged on the motor fixing frame. The motor base is locked by cooperating with the fan locking bolt and the T-slot. The T-slot is provided with positioning components on the front and rear sides of the motor, and the positioning components include a T-bolt and a U-shaped sliding block, and a locking positioning portion is arranged on the U-shaped sliding block. The T-bolt and the U-shaped sliding block cooperate to realize the locking and positioning of the U-shaped sliding block. After a positioning screw passes through the locking and positioning portion, its end is squeezed and contacted with the motor base.

[0007] An air outlet baffle is arranged at the air outlet, and a V-shaped opening is arranged on the top of the air outlet baffle, and the V-shaped opening is designed as a rolled edge on the side facing the fan module.

[0008] When the right-angle flange supports the side plate, a pressure plate is fixed with bolts on the column, one end of the pressure plate is arranged toward the side plate, and the pressure plate is squeezed on the side plate by locking the pressure plate bolts.

[0009] The bottom frame and the top plate are both provided with horizontal bending edges, the top and bottom of the column are respectively provided with horizontal locking plates, and the horizontal bending edges are fixed with the horizontal locking plates by riveting.

[0010] The beneficial effects of the utility model are as follows: through the above arrangement, the utility model is provided with a side extension end on the base frame, and a driving motor is fixed on the side extension end; a bottom frame and a box body are fixed on the base frame; the box body is composed of four columns, a side plate and a top plate on the upper part of the bottom frame; the top plate is fixed to the top of the four columns, and right-angle flanges are provided on both sides of the positive angles of the columns, and the support or riveting of the side plates is achieved through the right-angle flanges. The riveting points of this structure are on the inner side, and the fixing points are not visible on the appearance. The appearance is neat and has no riveting marks; a fan module is fixed in the box body, and an air inlet and an air outlet are provided on the box body corresponding to the fan module; the driving motor is arranged on the sides of the air outlet and the air inlet and is connected to the fan module for driving. This structure can avoid the influence of the driving motor on the air outlet efficiency and the air intake efficiency; the utility model also improves the fixing method of the driving motor, and the improved fixing method makes the driving motor run more stably and with higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0013] Figure 3 This is a side view of the structure of the utility model;

[0014] Figure 4 This is a schematic diagram of the column installation structure of the utility model;

[0015] Figure 5 This is a schematic diagram of the bottom three-dimensional structure of the utility model;

[0016] Figure 6 for Figure 4 A schematic diagram of the enlarged structure of the middle A area;

[0017] Figure 7 for Figure 4 A magnified schematic diagram of the structure of the middle B region;

[0018] Figure 8 for Figure 5 A magnified schematic diagram of the structure of the middle C region;

[0019] In the accompanying drawings, 1, base frame, 11, side extension end, 12, extension beam, 13, motor fixing frame, 2, bottom frame, 3, drive motor, 31, motor base, 32, fan locking bolt, 33, T-block, 4, positioning assembly, 41, U-shaped sliding block, 42, locking positioning part, 43, positioning screw, 44, T-bolt, 5, box body, 51, column, 510, column positive angle, 511, right-angle flange I, 512, right-angle flange II, 513, horizontal locking plate, 52, left side plate, 53, front side plate, 54, air outlet, 6, axial flow fan, 61, driven wheel, 7, air outlet baffle, 71, V-shaped mouth, 72, curling, 8, top plate, 9, pressure plate. DETAILED DESCRIPTION

[0020] As shown in the accompanying drawings, the utility model discloses a novel centrifugal fan box. This embodiment shows the specific structure of the novel centrifugal fan box in detail. Those skilled in the art can implement the technical solution through the following description or make further technical extensions on the basis of the technical solution. The protection scope of the utility model shall be based on the claims.

[0021] Embodiment 1:

[0022] A new type of centrifugal fan box, such as Figure 1-5 As shown, it includes a base frame 1, on which a side extension end 11 is provided, and a drive motor 3 is fixed on the side extension end 11; the specific structure is: an extension beam 12 is provided on the side extension end 11, and the two motor fixing frames 13 are fixed by the extension beam 12, as shown in FIG. Figure 6As shown, the motor fixing frame 13 is provided with a T-slot, and the fan locking bolts 32 on the four corners of the motor base 31 cooperate with the T-slot to achieve locking of the drive motor 3; after being fixed by the above locking method, under long-term high-frequency operation, the drive motor 3 is prone to loosening due to vibration. The utility model is provided with a positioning assembly 4 on the T-slot on the motor fixing frame 13, and this positioning assembly is respectively fixed on the front and rear sides of the drive motor 3, and the positioning assembly 4 includes a T-bolt 44 and a U-shaped sliding block 41, and the U-shaped sliding block 41 is buckled on the motor fixing frame 13, and a locking positioning portion 42 is provided on the U-shaped sliding block 41; the T-bolt 44 and the U-shaped sliding block 41 cooperate to achieve the locking positioning of the U-shaped sliding block 41 in the motor fixing frame 13; after a positioning screw 43 passes through the locking positioning portion 42, its end is squeezed and contacted with the motor base 31.

[0023] After the above structure is set, when the utility model is installing and positioning the drive motor 3, the first locking positioning of the drive motor 3 is first achieved by cooperating with the T-slot on the four corners of the motor base 31; then, by installing the positioning assembly 4, the U-shaped sliding block 41 is used to constrain the entire positioning assembly 4 from swinging left and right, and a locking positioning portion 42 is protruding on the U-shaped sliding block 41, and a positioning screw 43 is provided on the locking positioning portion 42. The second front and rear positioning of the drive motor 3 is performed by the positioning screw 43. After the above structure is set, the double positioning of the drive motor 3 can be achieved to prevent it from swinging back and forth and causing the belt to break or even the drive motor to be scrapped.

[0024] The utility model has a bottom frame 2 and a box body 5 fixed on the bottom frame 1; the box body 5 is composed of four columns 51 on the upper part of the bottom frame 2, a side plate and a top plate 8; in order to achieve the rivet fixation without leakage, the utility model makes the following structural improvements to the columns, such as Figure 7 , 8 As shown, the column 51 includes a column outer corner 510, and right-angle flanges are provided on both sides of the column outer corner 510, which are right-angle flange I 511 and right-angle flange II 512 respectively, and the support or riveting of the side panel is achieved by the two right-angle flanges; the bottom frame 2 and the top plate 8 are both provided with a horizontal bending edge 81, and the top and bottom of the column 51 are respectively bent and provided with a horizontal locking plate 513, and the horizontal bending edge 81 is riveted and fixed to the horizontal locking plate 513. This riveting is an internal riveting structure, and the riveting point cannot be seen from the outside.

[0025] In this embodiment, the left side plate 52 and the right side plate both adopt a supporting structure, and the outer sides thereof are pressed and fixed by a pressing plate 9; the front side plate 53 and the rear side plate adopt an inner riveting structure, such as Figure 8 As shown, no riveting points can be seen on the outside and the surface is clean and smooth.

[0026] When the side plate is supported by a right-angle flange, the pressure plate 9 is bolted to the column 51, as shown in FIG. Figure 7 As shown, one end of the pressing plate 9 is arranged toward the side plate, and the pressing plate 9 is screwed and locked to achieve the squeezing of the side plate by the pressing plate. The side plates mentioned here are the left side plate 52 and the right side plate.

[0027] After the above structure is set, the structure disclosed by the utility model can be applied to high-end centrifugal fan box products, which realizes the neatness and smoothness of the outer frame and the box surface, improves the appearance effect, and is conducive to product sales.

[0028] In the utility model, a fan module 6 is fixed in the box body 5, and an air inlet and an air outlet are arranged on the box body corresponding to the fan module 6; in this embodiment, a filter grille can be arranged on one side of the air inlet, and a plug interface or a flange structure can be arranged on one side of the air outlet 54 to facilitate the connection of the device with external air-using equipment.

[0029] As a further improvement, an air outlet baffle 7 is provided on the air outlet 54, and a V-shaped opening 71 is provided on the top of the air outlet baffle 7, and a curling edge 72 is designed on the side of the V-shaped opening 71 facing the fan module 6. Since there are air inlet gaps on the left and right sides of the fan module 6, the central area of ​​the fan module 6 is the area with the maximum air pressure. This design can constrain the airflow to be diverted outwards in the central area of ​​the air outlet 54, effectively improving the air outlet efficiency and avoiding the airflow being diverted outwards to reduce the air pressure and wind speed.

Claims

1. A new type of centrifugal fan box, characterized by: It comprises a bottom frame, the bottom frame is provided with a side extension end, a driving motor is fixed on the side extension end; the bottom frame and the box body are fixed on the bottom frame; The box body is composed of four columns, side panels and a top panel on the upper part of the bottom frame; the top panel is fixed to the top of the four columns, and the columns include column positive angles, and right-angle flanges are arranged on both sides of the column positive angles, and the side panels are supported or riveted by the right-angle flanges; a fan module is fixed in the box body, and an air inlet and an air outlet are arranged on the box body corresponding to the fan module; the drive motor is arranged on the side of the air outlet and the air inlet and is connected to the fan module.

2. The novel centrifugal fan box according to claim 1, characterized in that: A motor fixing bracket is arranged on the side extension end, and a T-slot is arranged on the motor fixing bracket. The motor base is locked by cooperating with the fan locking bolt and the T-slot. The T-slot is provided with a positioning assembly on the front and rear sides of the motor, and the positioning assembly includes a T-bolt and a U-shaped sliding block, and a locking positioning portion is arranged on the U-shaped sliding block. The T-bolt and the U-shaped sliding block cooperate to realize the locking and positioning of the U-shaped sliding block. A positioning screw penetrates the locking and positioning portion and is squeezed and contacted with the motor base.

3. The novel centrifugal fan box according to claim 1, characterized in that: An air outlet baffle is arranged at the air outlet, and a V-shaped opening is arranged on the top of the air outlet baffle, and the V-shaped opening is designed as a rolled edge on the side facing the fan module.

4. The novel centrifugal fan box as claimed in claim 1, characterized in that: When the right-angle flange supports the side plate, a pressure plate is fixed with bolts on the column, one end of the pressure plate is arranged toward the side plate, and the pressure plate is squeezed on the side plate by locking the pressure plate bolts.

5. The novel centrifugal fan box as claimed in claim 1, characterized in that: The bottom frame and the top plate are both provided with horizontal bending edges, the top and bottom of the column are respectively provided with horizontal locking plates, and the horizontal bending edges are fixed with the horizontal locking plates by riveting.

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