Fan housing for turbofan

Abstract

The utility model provides a fan shell for a turbofan, which comprises a bracket, and lock lugs are arranged on the inner sides of the two ends of the bracket; the fan shell is detachably connected into the locking lugs at the two ends of the support; the fan shell comprises a rear shell body, an inner shell body and a front shell body which are sequentially arranged in the air flowing direction. The front shell is provided with a mounting opening; the rear shell is provided with a communication port; the communicating port and the mounting port are connected in a clamping manner to realize mounting connection of the rear shell and the front shell, and after the front shell and the rear shell are mounted and connected, a cavity capable of accommodating the inner shell is formed in the front shell and the rear shell; the inner shell is in buckled connection with the front shell; the two ends of the front shell are provided with connecting assemblies connected with the locking lugs at the two ends of the support in a matched mode respectively, and the connecting assemblies are connected with the locking lugs in a matched mode so that the fan shell can be connected with the support. According to the utility model, the fan shell and the lock lug can be quickly assembled and disassembled; the front shell and the rear shell can be quickly assembled and disassembled; and the inner shell and the front shell can also be quickly disassembled and assembled.

Description

Technical Field

[0001] This utility model belongs to the technical field of fans, and in particular relates to a fan housing for a turbo fan. Background Technology

[0002] A turbo fan, also known as a centrifugal fan, is a device where an impeller is driven by an electric motor. The blades in the impeller force the gas to rotate, doing work on the gas and increasing its momentum. Under centrifugal force, the gas is thrown outwards from the impeller, and its kinetic energy is converted into pressure energy through a vortex casing. Once the gas is expelled from the impeller, the pressure inside the impeller is lower than the pressure inside the inlet duct, drawing in new gas due to the pressure difference. This continuous process of expelling gas from the fan is characteristic of turbo fans. They are widely used in homes, classrooms, offices, shops, hospitals, and hotels.

[0003] Existing turbofan housings are typically assembled from two housings, front and rear, which are fixed together with screws. This makes disassembly and assembly of the fan housing cumbersome, easily damages the housing, and reduces the fan's lifespan.

[0004] Therefore, there is a need to provide a fan housing for turbo fans. Utility Model Content

[0005] The main objective of this invention is to provide a fan housing for a turbo fan, addressing the shortcomings of existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A fan housing for a turbofan includes a bracket with locking lugs on the inner sides of both ends; a fan housing detachably connected to the locking lugs at both ends of the bracket; the fan housing includes a rear housing, an inner housing, and a front housing arranged sequentially in the gas flow direction; the front housing has a mounting port; the rear housing has a communication port; the communication port engages with the mounting port to achieve a mounting connection between the rear housing and the front housing, and after the front housing and the rear housing are mounted together, an internal cavity is formed to accommodate the inner housing; the inner housing is snap-fitted to the front housing; both ends of the front housing are respectively provided with connecting components that engage with the locking lugs at both ends of the bracket, and the connecting components engage with the locking lugs to achieve a connection between the fan housing and the bracket.

[0008] Preferably, the connecting assembly includes a circular connecting buckle, a portion of which protrudes toward the mounting opening. The connecting buckle has a connecting piece integrally formed therewith, the connecting piece protruding outwards, and locking grooves on both sides of the connecting piece.

[0009] Preferably, the lock lug has a limiting groove inside that mates with the connecting piece, and the two ends of the limiting groove are also provided with connecting posts that correspond one-to-one with the locking groove.

[0010] Preferably, each of the connecting posts is provided with a baffle on its side, and after the connecting post is connected to the locking groove, the baffle abuts against the outer periphery of the locking groove.

[0011] Preferably, the rear housing has a connecting groove at one end where the communication port is located, and the connecting groove is adapted to the portion of the connecting buckle that protrudes towards the mounting port.

[0012] Preferably, the inner circumferential array of the end of the front housing with the mounting port has a plurality of mounting grooves, and the inner circumferential array of the end of the rear housing with the communication port has a plurality of protrusions that mate with the mounting grooves.

[0013] Preferably, the front housing has a plurality of connecting holes arranged in a circular array at one end where the mounting port is located toward the rear housing, and the rear housing has a plurality of connecting blocks arranged in a circular array on the inner side of one end where the communication port is located, which correspond to and cooperate with the connecting holes one by one, and the connecting blocks are snapped together with the connecting holes one by one.

[0014] Preferably, the inner housing is provided with symmetrical mating grooves on both sides near the front housing, and the inner walls of both ends of the front housing are respectively provided with groove blocks that cooperate with the mating grooves. The mating grooves and the groove blocks are snapped together to realize the connection between the inner housing and the front housing.

[0015] Compared with the prior art, the present invention will have at least the following beneficial effects:

[0016] ① The fan housing and locking lugs can be quickly disassembled and assembled. Align the connecting piece with the limiting groove and the locking groove with the connecting post. Press the two ends of the bracket inward to make the locking lugs snap into the front housing. If you need to disassemble the front housing and locking lugs, pull the two ends of the bracket outward to separate the connecting components from the locking lugs.

[0017] ② The baffle plate ensures that the connecting column cannot rotate within the locking groove, thus improving the fixed connection between the front housing and the bracket.

[0018] ③ The front and rear housings can be quickly disassembled and assembled. The rear housing is connected to the front housing via a mounting port through a connecting port at one end. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort, wherein:

[0020] Figure 1 This is a schematic diagram of the fan housing for a turbo fan according to the present invention;

[0021] Figure 2 This is an exploded view of a portion of the fan housing structure for a turbo fan according to the present invention.

[0022] Figure 3 for Figure 2 Enlarged view of point I;

[0023] Figure 4 for Figure 2 Enlarged view of section II;

[0024] Figure 5 This is a side sectional view of the fan housing for a turbo fan according to the present invention;

[0025] Figure 6 This is a side sectional view of the fan housing for a turbo fan according to the present invention;

[0026] Figure 7 This is a schematic diagram of the fan housing for a turbo fan according to this utility model from another perspective.

[0027] The reference numerals in the figures include:

[0028] 1. Bracket; 2. Locking lug; 3. Front housing; 4. Rear housing; 5. Inner housing; 6. Air outlet; 7. Mounting port; 8. Air inlet; 9. Connecting port; 10. Connecting buckle; 11. Connecting piece; 12. Locking groove; 13. Limiting groove; 14. Connecting post; 15. Baffle; 16. Connecting groove; 17. Mounting groove; 18. Protrusion; 19. Connecting hole; 20. Connecting block; 21. Docking groove; 22. Groove block; 23. Blocking cover. Detailed Implementation

[0029] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely exemplary embodiments of this utility model, and not the only embodiments.

[0030] like Figures 1 to 7As shown, the fan housing for a turbofan includes a bracket 1 with locking lugs 2 on the inner sides of both ends of the bracket 1; and a fan housing detachably connected to the locking lugs 2 at both ends of the bracket 1. The fan housing includes a rear housing 4, an inner housing 5, and a front housing 3 arranged sequentially in the gas flow direction. The front housing 3 has a mounting port 7, and the rear housing 4 has a connecting port 9. Specifically, the front housing 3 has an air outlet 6 and a mounting port 7 at opposite ends, and the rear housing 4 has an air inlet 8 and a connecting port 9 at opposite ends. The connecting port 9 engages with the mounting port 7 to achieve connection between the rear housing 4 and the front housing 5. The housing 3 is installed and connected. Specifically, the rear housing 4 is connected to the front housing 3 via the mounting port 7 through the connecting port 9. After the front housing 3 and the rear housing 4 are installed and connected, a cavity is formed inside that can accommodate the inner housing 5. The inner housing 5 contains other components of the turbine fan, such as the turbine motor and turbine blades. The rear housing 4 is connected to the cavity through the connecting port 9 to form an airflow channel. This allows gas to enter through the air inlet 8 and, driven by the motor, rotate the turbine blades through the airflow channel, causing the gas in the airflow channel to be output through the air outlet 6 and generate wind.

[0031] The inner housing 5 is snapped together with the front housing 3. The two ends of the front housing 3 are respectively provided with connecting components that cooperate with the locking lugs 2 at both ends of the bracket 1. The connecting components are snapped together with the locking lugs 2 to fix the connecting components in the locking lugs 2, so as to realize the connection between the fan housing and the bracket 1.

[0032] Specifically, the connecting assembly includes a circular connecting buckle 10, a portion of which protrudes towards the mounting opening 7. The connecting buckle 10 contains an integrally formed connecting piece 11, which protrudes outwards. Locking grooves 12 are provided on both sides of the connecting piece 11. This arrangement facilitates better connection between the connecting assembly and the lock lug 2. More specifically, the lock lug 2 contains a limiting groove 13 that mates with the connecting piece 11. Connecting posts 14, corresponding to the locking grooves 12, are provided at both ends of the limiting groove 13. During actual installation, the connecting piece 11 on the front housing 3 is aligned with the limiting groove 13 inside the lock lug 2, and the locking groove 12 on the front housing 3 is aligned with the connecting post 14 inside the lock lug 2. Then, the two ends of the bracket 1 are pressed inwards to engage the lock lug 2 with the front housing 3. To disassemble the front housing 3 from the lock lug 2, the two ends of the bracket 1 are pulled outwards to separate the connecting assembly from the lock lug 2.

[0033] To prevent the connecting post 14 from rotating in the locking groove 12 after the connecting component is engaged with the locking lug 2, which would cause the engagement between the connecting component and the locking lug 2 to be unstable, a baffle 15 is provided on the side of each connecting post 14. After the connecting post 14 is engaged with the locking groove 12, the baffle 15 abuts against the outer periphery of the locking groove 12. Thus, due to the presence of the baffle 15, the connecting post 14 cannot rotate in the locking groove 12.

[0034] Since a portion of the connecting buckle 10 protrudes towards the mounting opening 7, it is necessary to fill in the protruding part of the connecting buckle 10. Therefore, a connecting groove 16 is provided at one end of the rear housing 4 where the connecting opening 9 is located. The connecting groove 16 is adapted to the part of the connecting buckle 10 that protrudes towards the mounting opening 7. In this way, the front housing 3 and the rear housing 4 can be completely installed and connected together. If it is necessary to separate the front housing 3 and the rear housing 4, one of the front housing 3 and the rear housing 4 can be taken out in the opposite direction.

[0035] To enhance the fixed connection between the front housing 3 and the rear housing 4, a number of mounting grooves 17 are arranged in a circular array on the inner side of the end of the front housing 3 where the mounting port 7 is located. Correspondingly, a number of protrusions 18 that cooperate with the mounting grooves 17 are arranged in a circular array on the inner side of the end of the rear housing 4 where the communication port 9 is located. When installing the front housing 3 and the rear housing 4, the rear housing 4 is brought closer to the front housing 3 and the protrusions 18 are aligned with the mounting grooves 17, so that the front housing 3 and the rear housing 4 can be fixedly installed together.

[0036] Similarly, to further enhance the fixed connection between the front housing 3 and the rear housing 4, a number of connecting holes 19 are arranged in a circular array on the end of the front housing 3 with the mounting port 7 towards the rear housing 4. Correspondingly, a number of connecting blocks 20 are arranged in a circular array on the inner side of the end of the rear housing 4 with the communication port 9, which are matched and cooperate with the connecting holes 19 one by one. When installing the front housing 3 and the rear housing 4, the rear housing 4 is brought close to the front housing 3 and the connecting blocks 20 are snapped together with the connecting holes 19 one by one.

[0037] To achieve a snap-fit ​​connection between the inner housing and the front housing 3, symmetrical mating grooves 21 are provided on both sides of the inner housing 5 near the front housing 3. At the end of the inner wall of both ends of the front housing 3 near the connecting component, groove blocks 22 that cooperate with the mating grooves 21 are respectively provided. The mating grooves 21 and the groove blocks 22 are snap-fit ​​connected to achieve the connection between the inner housing 5 and the front housing 3. When installing the front housing 3 and the inner housing 5, the inner housing 5 is brought close to the front housing 3 and the mating grooves 21 are aligned with the groove blocks 22, so that the inner housing 5 and the front housing 3 can be snap-fit ​​connected.

[0038] Understandably, in this embodiment, the front housing 3 is first connected to the locking lug 2 to connect the fan housing to the bracket 1, then the inner housing 5 is snapped together with the front housing 3, and finally the rear housing 4 is installed together with the front housing 3 in the manner described above to complete the installation of the entire fan housing.

[0039] If it is necessary to repair or replace other components of the turbine fan inside the fan housing, the fan housing can be disassembled. The disassembly process involves first separating the rear housing 4 from the front housing 3, then separating the inner housing 5 from the front housing 3, and finally separating the front housing 3 from the locking lug 2, thereby completing the separation of the fan housing from the bracket 1.

[0040] Furthermore, the rear housing 4 has a perforated baffle 23 at one end where the air inlet 8 is located. The perforated baffle 23 can prevent large debris from entering the fan housing and affecting the normal operation of the turbo fan.

[0041] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A fan housing for a turbo fan, characterized in that, include: A bracket (1) is provided with locking lugs (2) on the inner sides of both ends of the bracket (1); The fan housing is detachably connected to the locking lugs (2) at both ends of the bracket (1); The fan housing includes a rear housing (4), an inner housing (5), and a front housing (3) arranged sequentially in the direction of gas flow; The front housing (3) is provided with a mounting port (7); The rear housing (4) is provided with a communication port (9); The connecting port (9) engages with the mounting port (7) to realize the installation connection between the rear housing (4) and the front housing (3). After the front housing (3) and the rear housing (4) are installed and connected, a cavity is formed inside that can accommodate the inner housing (5). The inner housing (5) is snapped together with the front housing (3); The front housing (3) is provided with connecting components at both ends, which are connected to the locking lugs (2) at both ends of the bracket (1). The connecting components are connected to the locking lugs (2) to realize the connection between the fan housing and the bracket (1).

2. The fan housing for a turbo fan according to claim 1, characterized in that, The connecting assembly includes a circular connecting buckle (10), a portion of which protrudes toward the mounting port (7). The connecting buckle (10) has a connecting piece (11) integrally formed therewith, the connecting piece (11) protruding outwards, and locking grooves (12) are provided on both sides of the connecting piece (11).

3. The fan housing for a turbo fan according to claim 2, characterized in that, The lock lug (2) has a limiting groove (13) inside that cooperates with the connecting piece (11), and the two ends of the limiting groove (13) are also provided with connecting posts (14) that correspond to the locking groove (12).

4. The fan housing for a turbo fan according to claim 3, characterized in that, Each of the connecting posts (14) is provided with a baffle (15) on its side. After the connecting post (14) is connected to the locking groove (12), the baffle (15) abuts against the outer periphery of the locking groove (12).

5. The fan housing for a turbo fan according to claim 4, characterized in that, The rear housing (4) has a connecting groove (16) at one end of the connecting port (9), and the connecting groove (16) is adapted to the part of the connecting buckle (10) that protrudes in the direction of the mounting port (7).

6. The fan housing for a turbo fan according to claim 1, characterized in that, The front housing (3) has a plurality of mounting slots (17) arranged in an inner circumferential array at one end of the mounting port (7), and the rear housing (4) has a plurality of protrusions (18) arranged in an inner circumferential array at one end of the communication port (9) that cooperate with the mounting slots (17).

7. The fan housing for a turbo fan according to claim 1, characterized in that, The front housing (3) has a plurality of connecting holes (19) arranged in a circular array at one end of the mounting port (7) toward the rear housing (4), and the rear housing (4) has a plurality of connecting blocks (20) arranged in a circular array on the inner side of the end of the connecting port (9) corresponding to the connecting holes (19).

8. The fan housing for a turbo fan according to claim 1, characterized in that, The inner shell (5) is symmetrically provided with mating grooves (21) on both sides near the front shell (3). The inner walls of both ends of the front shell (3) near the connecting assembly are respectively provided with groove blocks (22) that cooperate with the mating grooves (21). The mating grooves (21) and the groove blocks (22) are snapped together to realize the connection between the inner shell (5) and the front shell (3).

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