Box type centrifugal fan

Abstract

The utility model provides a box type centrifugal fan which comprises a main box body and a fan assembly installed in the main box body. An air inlet structure and an air outlet structure are arranged on the main box body. The air inlet structure and the air outlet structure are provided with an air inlet connecting piece and an air outlet connecting piece respectively. The main box body comprises a first box cover body and a second box cover body which are fixed together. The centrifugal fan has the advantages of being convenient to use, clean and install, high in safety, stable in performance and long in service life, in the design and production process, the main box body is made of heat-insulation, flame-retardant and high-hardness materials, the fan can be effectively protected in the working process of the centrifugal fan, the fan is not affected by the external environment, and the service life of the centrifugal fan is prolonged. And on the other hand, the main box body adopts a unique fixing mode, so that the device is compact and exquisite in structure and convenient to install, use of workers is greatly facilitated, and therefore the device has great economic value and practical value.

Description

Technical Field

[0001] This utility model relates to the field of fan production, research and development, and design technology, and in particular to a box-type centrifugal fan. Background Technology

[0002] Ventilation fans are machines that rely on input mechanical energy to increase gas pressure and discharge gas; they are a type of driven fluid machinery. Ventilation fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings for ventilation, dust removal, and cooling; in boilers and industrial furnaces for ventilation and induced draft; in air conditioning equipment and household appliances for cooling and ventilation; in grain drying and conveying; as wind sources in wind tunnels and for inflating and propelling hovercraft. Because centrifugal fans operate in extremely special environments, the protective measures taken directly affect their service life and safety. In addition to protecting the fans, it is also necessary to consider how to facilitate their installation. However, there is currently no effective solution in existing technology, therefore, further improvements are needed. Utility Model Content

[0003] This utility model addresses the shortcomings of the prior art by providing a box-type centrifugal fan that is easy to use, highly safe, has stable performance, and a long service life.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows:

[0005] This utility model provides a box-type centrifugal fan, including a main box and a fan assembly installed inside the main box.

[0006] The main housing is equipped with an air inlet structure and an air outlet structure.

[0007] Furthermore, the air inlet structure and the air outlet structure are respectively provided with an air inlet connector and an air outlet connector.

[0008] Furthermore, the main box body includes a first box cover and a second box cover fixed together.

[0009] Furthermore, the first box cover is provided with a first fixing position A and a first fixing position B.

[0010] The second box cover is provided with a second fixing position A and a second fixing position B.

[0011] The first fixed position A and the second fixed position A form the air inlet structure.

[0012] The first fixed position B and the second fixed position B form the air outlet structure.

[0013] Furthermore, the first box lid is provided with a first accommodating space.

[0014] The second box lid is provided with a second accommodating space.

[0015] The first accommodating space and the second accommodating space form a fan accommodating space for placing the fan assembly.

[0016] Furthermore, the first box cover is provided with positioning feet.

[0017] The second box cover is provided with a positioning groove that mates with the positioning foot.

[0018] Furthermore, the first box cover and the second box cover are fixed together by a fixing assembly.

[0019] Furthermore, the fixing component includes a fixing block disposed on the first box cover and the second box cover, and a fixing strip fitted on the fixing block.

[0020] Furthermore, the fixing strip includes a fixing strip body and fixing strip fitting portions disposed on both sides of the fixing strip body.

[0021] Furthermore, the main body of the fixing strip and the fitting part of the fixing strip form a certain angle.

[0022] The beneficial effects of the utility model are as follows:

[0023] The box-type centrifugal fan provided by this utility model has the advantages of convenient use, high safety, stable performance and long service life. In the design and production process, the main box body is made of heat-insulating, flame-retardant and high-hardness materials, which can effectively protect the fan during the operation of the centrifugal fan and prevent it from being affected by the external environment. On the other hand, the main box body of this application adopts a unique fixing method, which makes the structure of this application compact and exquisite, easy to install, and greatly facilitates the use of the staff. Therefore, this application has great economic value and practical value. Attached Figure Description

[0024] Figure 1 This is a structural diagram of a box-type centrifugal fan;

[0025] Figure 2 This is another structural diagram of a box-type centrifugal fan;

[0026] Figure 3 This is the third structural diagram of a box-type centrifugal fan for utility model purposes;

[0027] Figure 4 This is an exploded structural diagram of a box-type centrifugal fan of utility model;

[0028] Figure 5 This is a structural diagram of the first box cover of a box-type centrifugal fan according to a utility model.

[0029] Figure 6 This is a structural diagram of the second box cover of a box-type centrifugal fan according to a utility model.

[0030] Figure 7 This is a structural diagram of the fixing bar of a box-type centrifugal fan;

[0031] Figure 8 This is a structural diagram of Embodiment 1 of a box-type centrifugal fan of the utility model;

[0032] Figure 9 This is another structural diagram of Embodiment 1 of a box-type centrifugal fan of the utility model;

[0033] Figure 10 This is a structural diagram of Embodiment 2 of a box-type centrifugal fan of the utility model;

[0034] Figure 11 This is another structural diagram of Embodiment 2 of a box-type centrifugal fan of the utility model. Detailed Implementation

[0035] The embodiments of the utility model are described in detail below with reference to the accompanying drawings. The drawings are for reference and illustration only and do not constitute a limitation on the scope of protection of the utility model patent.

[0036] Example 1

[0037] like Figure 1-7 As shown, this utility model provides a box-type centrifugal fan, including a main housing 1 and a fan assembly 2 installed inside the main housing 1.

[0038] The main housing 1 is provided with an air inlet structure 3 and an air outlet structure 4.

[0039] In this embodiment, the air inlet structure 3 and the air outlet structure 4 are respectively provided with an air inlet connector 5 and an air outlet connector 6.

[0040] In this embodiment, the main box 1 includes a first box cover 7 and a second box cover 8 fixed together.

[0041] In this embodiment, the first box cover 7 is provided with a first fixing position A701 and a first fixing position B702.

[0042] The second box cover 8 is provided with a second fixing position A801 ​​and a second fixing position B802.

[0043] The first fixing position A701 and the second fixing position A801 ​​form the air inlet structure 3.

[0044] The first fixed position B 702 and the second fixed position B 802 form the air outlet structure 4.

[0045] In this embodiment, the first box cover 7 is provided with a first accommodating space 703.

[0046] The second box cover 8 is provided with a second accommodating space 803.

[0047] The first accommodating space 703 and the second accommodating space 803 form a fan accommodating space for placing the fan assembly 2.

[0048] In this embodiment, the first box cover 7 is provided with positioning feet 704.

[0049] The second box cover 8 is provided with a positioning groove 804 that cooperates with the positioning foot. Of course, the positions of the positioning foot 704 and the positioning groove 804 can be interchanged as needed.

[0050] In this embodiment, the first box cover 7 and the second box cover 8 are fixed together by a fixing component 9.

[0051] In this embodiment, the fixing component 9 includes a fixing block 901 disposed on the first box cover 7 and the second box cover 8 and a fixing strip 902 fitted on the fixing block.

[0052] In this embodiment, the fixing strip 902 includes a fixing strip body 9021 and fixing strip fitting portions 9022 disposed on both sides of the fixing strip body 9021.

[0053] In this embodiment, the fitting portion of the fixing strip body 9021 and the fixing strip 9022 forms a certain angle.

[0054] Example 2

[0055] like Figure 8-9 As shown, the difference between this embodiment and Embodiment 1 is that:

[0056] In this embodiment, one side of the first box cover 7 and the second box cover 8 is fixed by a hinge 100, and the other side is fixed by a fixing component 9. This fixing method can be achieved by flipping the first box cover 7 and the second box cover 8 to open or close.

[0057] Example 3

[0058] like Figure 10-11 As shown, the difference between this embodiment and Embodiments 1 and 2 is that:

[0059] In this embodiment, one side of the first box cover 7 and the second box cover 8 is fixed by a hinge 100, and the other side is fixed by a snap fastener 200. This fixing method can be achieved by flipping the first box cover 7 and the second box cover 8 to open or close, and the other side is locked by the snap fastener 200.

[0060] The box-type centrifugal fan provided by this utility model has the advantages of convenient use, high safety, stable performance and long service life. In the design and production process, the main box 1 is made of heat-insulating, flame-retardant and high-hardness materials, which can effectively protect the fan during the operation of the centrifugal fan and prevent it from being affected by the external environment. On the other hand, the main box 1 of this application adopts a unique fixing method, which makes the structure of this application compact and exquisite, easy to install, and greatly facilitates the use of the staff. Therefore, this application has great economic value and practical value.

[0061] The above embodiments are preferred embodiments of the utility model, but the implementation of the utility model is not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the utility model shall be considered equivalent substitutions and shall be included within the protection scope of the utility model.

Claims

1. A box-type centrifugal fan, characterized in that: Includes the main housing and the fan assembly installed inside the main housing. The main housing is equipped with an air inlet structure and an air outlet structure.

2. A box-type centrifugal fan according to claim 1, characterized in that: The air inlet structure and the air outlet structure are respectively provided with an air inlet connector and an air outlet connector.

3. A box-type centrifugal fan according to claim 2, characterized in that: The main box body includes a first box cover and a second box cover fixed together.

4. A box-type centrifugal fan according to claim 3, characterized in that: The first box cover is provided with a first fixing position A and a first fixing position B. The second box cover is provided with a second fixing position A and a second fixing position B. The first fixed position A and the second fixed position A form the air inlet structure. The first fixed position B and the second fixed position B form the air outlet structure.

5. A box-type centrifugal fan according to claim 4, characterized in that: The first box cover has a first accommodating space. The second box lid is provided with a second accommodating space. The first accommodating space and the second accommodating space form a fan accommodating space for placing the fan assembly.

6. A box-type centrifugal fan according to claim 5, characterized in that: The first box cover is equipped with positioning feet. The second box cover is provided with a positioning groove that mates with the positioning foot.

7. A box-type centrifugal fan according to claim 3, characterized in that: The first and second box lids are fixed together by a fixing assembly.

8. A box-type centrifugal fan according to claim 7, characterized in that: The fixing components include fixing blocks disposed on the first box cover and the second box cover, and fixing strips fitted on the fixing blocks.

9. A box-type centrifugal fan according to claim 8, characterized in that: The fixing strip includes a fixing strip body and fixing strip fitting portions provided on both sides of the fixing strip body.

10. A box-type centrifugal fan according to claim 9, characterized in that: The main body of the fixing strip and the fitting part of the fixing strip form a certain angle.

Images