Centrifugal fan with leak-proof function

Abstract

The utility model relates to the field of centrifugal fans, in particular to a centrifugal fan with an anti-leakage function, which comprises a wind shell assembly, the wind shell assembly comprises a wind guide shell, a driving groove is formed in one side of the wind guide shell, an access cover assembly is fixedly mounted on the other side of the wind guide shell, a driving assembly is arranged in the driving groove, and the access cover assembly is fixedly mounted on the other side of the wind guide shell. The driving assembly comprises a driving motor, a driving magnet is fixedly installed at the output end of the driving motor and arranged in the driving groove, an impeller is arranged in the air guide shell, a driven magnet is fixedly installed on one side of the impeller, and the driving magnet and the driven magnet are arranged on the two sides of the air guide shell correspondingly. And one side of the bottom end of the air guide shell is provided with an air exhaust connector, and the effect of effectively improving the leakproof performance is achieved.

Description

Technical Field

[0001] The present application relates to the field of centrifugal fans, and particularly to a centrifugal fan with a leakage prevention function. Background Art

[0002] A centrifugal fan is a ventilation machine that works based on the principle of centrifugal force. It generates air flow through the rotation of the impeller, sucks in gas axially, and discharges it radially. Centrifugal fans are widely used in the fields of ventilation, dust removal, and material transportation in industrial production, and are favored due to their high efficiency, high pressure, and low noise.

[0003] In the existing centrifugal fan, the output end of the driving motor and the impeller are usually connected by a coupling. However, during use, the pressure inside the air guide housing is relatively high, and the gas flowing inside is likely to escape from the coupling installation location, resulting in leakage and inconvenience in use. Utility Model Content

[0004] In order to solve the problems raised in the above background art, the present application provides a centrifugal fan with a leakage prevention function.

[0005] The above technical objectives of the present application are achieved through the following technical solutions:

[0006] A centrifugal fan with a leakage prevention function includes a wind housing assembly. The wind housing assembly includes an air guide housing. A driving groove is formed on one side of the air guide housing, and a maintenance cover assembly is fixedly installed on the other side of the air guide housing. A driving assembly is arranged inside the driving groove. The driving assembly includes a driving motor. A driving magnet is fixedly installed at the output end of the driving motor. The driving magnet is arranged inside the driving groove. An impeller is arranged inside the air guide housing. A driven magnet is fixedly installed on one side of the impeller. The driving magnet and the driven magnet are respectively arranged on both sides of the air guide housing, and the driving magnet and the driven magnet are magnetically coupled. An exhaust interface is formed on one side of the bottom end of the air guide housing.

[0007] By adopting the above scheme, since the maintenance cover assembly is fixedly installed on the other side of the air guide housing, it is convenient to open the maintenance cover assembly to repair and maintain the internal structure. Since the driving magnet is fixedly installed at the output end of the driving motor, it is convenient for the driving motor to drive the driving magnet to rotate. Since the driving magnet and the driven magnet are respectively arranged on both sides of the air guide housing and are magnetically coupled, it is convenient for the driving magnet to drive the driven magnet to rotate, thereby facilitating the driving motor to drive the impeller to rotate to generate air flow. Moreover, the driving motor and the impeller are completely sealed, which can effectively prevent leakage. Since the exhaust interface is formed on one side of the bottom end of the air guide housing, it is convenient to connect to an external pipeline and facilitate the air flow generated by the rotation of the impeller to be discharged from the exhaust interface.

[0008] Further, a bearing bowl is fixedly installed in the middle inside the air guide housing, and a rotating bearing is fixedly installed inside the bearing bowl.

[0009] By adopting the above scheme, since the rotating bearing is fixedly installed inside the bearing bowl, it is convenient to install the rotating bearing and can play a role in protecting the rotating bearing.

[0010] Further, the rotating bearing is sleeved on the outside of the driven magnet, and the inner side of the rotating bearing is fixedly connected to the outside of the driven magnet.

[0011] By adopting the above scheme, since the rotating bearing is sleeved on the outside of the driven magnet and the inner side of the rotating bearing is fixedly connected to the outside of the driven magnet, it is convenient to rotatably connect the impeller to the air guide housing and can effectively improve the stability of the impeller rotation.

[0012] Further, a fixed sleeve is fixedly installed on the outside of the driving motor, mounting pieces are fixedly installed on the outside of the fixed sleeve, and the mounting pieces are fixedly connected to the side of the air guide housing where the driving groove is opened.

[0013] By adopting the above scheme, since mounting pieces are fixedly installed on the outside of the fixed sleeve and the mounting pieces are fixedly connected to the side of the air guide housing where the driving groove is opened, it is convenient to fixedly connect the driving motor to the air guide housing and convenient for the driving motor to drive the impeller inside the air guide housing to rotate.

[0014] Further, a first sealing groove is opened on the side of the air guide housing away from the driving groove, and threaded holes are opened on the outside of the first sealing groove.

[0015] By adopting the above scheme, since a first sealing groove is opened on the side of the air guide housing away from the driving groove and threaded holes are opened on the outside of the first sealing groove, it is convenient to fixedly install the maintenance cover assembly on one side of the air housing assembly.

[0016] Further, the maintenance cover assembly includes a cover body, and an air inlet interface is fixedly installed in the middle of one side of the cover body.

[0017] By adopting the above scheme, since an air inlet interface is fixedly installed in the middle of one side of the cover body, it is convenient to connect an external pipeline and convenient for external gas to enter the device from the air inlet interface.

[0018] Further, a flow collector is fixedly installed at one end of the air inlet interface, and one end of the flow collector is inserted inside the impeller.

[0019] By adopting the above scheme, since one end of the flow collector is inserted inside the impeller, it is convenient to guide the gas entering the device and improve the exhaust efficiency of the device.

[0020] Further, a second sealing groove is formed on the side of the cover body away from the air inlet interface. A sealing ring is fixedly installed inside the second sealing groove, and one side of the sealing ring is arranged inside the first sealing groove.

[0021] By adopting the above solution, since the sealing ring is fixedly installed inside the second sealing groove and one side of the sealing ring is arranged inside the first sealing groove, it is convenient for the sealing ring to seal the gap between the cover body and the air guide housing, improving the anti-leakage performance.

[0022] Further, screw holes are formed outside the second sealing groove. Fixing screws are inserted into the screw holes, and one end of each fixing screw is in threaded connection with a threaded hole.

[0023] By adopting the above solution, since one end of the fixing screw is in threaded connection with the threaded hole, it is convenient to fixedly connect the cover body and the air guide housing stably, and it is also convenient to disassemble the cover body, facilitating the inspection and maintenance of the interior.

[0024] In summary, the present application has the following technical effects:

[0025] By fixedly installing a maintenance cover assembly on the other side of the air guide housing, it is convenient to open the maintenance cover assembly to inspect and maintain the internal structure. By fixedly installing a driving magnet on the output end of the driving motor, it is convenient for the driving motor to drive the driving magnet to rotate. Since the driving magnet and the driven magnet are respectively arranged on both sides of the air guide housing and the driving magnet and the driven magnet are magnetically coupled, it is convenient for the driving magnet to drive the driven magnet to rotate, thereby facilitating the driving motor to drive the impeller to rotate to generate air flow. Moreover, the driving motor and the impeller are completely sealed, which can effectively prevent leakage. By forming an exhaust interface on one side of the bottom end of the air guide housing, it is convenient to connect an external pipeline, facilitating the air flow generated by the rotation of the impeller to be discharged from the exhaust interface, achieving the effect of effectively improving the anti-leakage performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the external shape structure diagram of a centrifugal fan with an anti-leakage function according to the present application;

[0027] Figure 2 is the exploded view of a centrifugal fan with an anti-leakage function according to the present application;

[0028] Figure 3 is the exploded view of the air guide housing assembly of the present application;

[0029] Figure 4 is the exploded view of the driving assembly of the present application;

[0030] Figure 5 is the exploded view of the maintenance cover assembly of the present application.

[0031] In the figure, 101 is the air duct assembly; 10101 is the air guide duct; 10102 is the impeller; 10103 is the driven magnet; 10104 is the bearing bowl; 10105 is the rotating bearing; 10106 is the exhaust interface; 10107 is the first sealing groove; 10108 is the threaded hole; 10109 is the driving groove; 102 is the maintenance cover assembly; 10201 is the cover body; 10202 is the air inlet interface; 10203 is the air collector; 10204 is the second sealing groove; 10205 is the sealing ring; 10206 is the screw hole; 10207 is the fixing screw; 103 is the driving assembly; 10301 is the driving motor; 10302 is the driving magnet; 10303 is the fixing sleeve; 10304 is the mounting plate. Detailed implementation manners

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] Embodiment

[0034] As shown in the Figure 1 to the Figure 5 accompanying drawings:

[0035] The utility model provides a centrifugal fan with a leakage prevention function, which includes a wind shell assembly 101. The wind shell assembly 101 includes a wind guide shell 10101. A driving groove 10109 is formed on one side of the wind guide shell 10101, and a maintenance cover assembly 102 is fixedly installed on the other side of the wind guide shell 10101. By fixedly installing the maintenance cover assembly 102 on the other side of the wind guide shell 10101, it is convenient to open the maintenance cover assembly 102 to repair and maintain the internal structure. A driving assembly 103 is arranged inside the driving groove 10109. The driving assembly 103 includes a driving motor 10301. A driving magnet 10302 is fixedly installed at the output end of the driving motor 10301. By fixedly installing the driving magnet 10302 at the output end of the driving motor 10301, it is convenient for the driving motor 10301 to drive the driving magnet 10302 to rotate. The driving magnet 10302 is arranged inside the driving groove 10109. An impeller 10102 is arranged inside the wind guide shell 10101. A driven magnet 10103 is fixedly installed on one side of the impeller 10102. The driving magnet 10302 and the driven magnet 10103 are respectively arranged on both sides of the wind guide shell 10101, and the driving magnet 10302 and the driven magnet 10103 are magnetically coupled. By respectively arranging the driving magnet 10302 and the driven magnet 10103 on both sides of the wind guide shell 10101 and magnetically coupling the driving magnet 10302 and the driven magnet 10103, it is convenient for the driving magnet 10302 to drive the driven magnet 10103 to rotate, thereby facilitating the driving motor 10301 to drive the impeller 10102 to rotate to generate air flow. Moreover, the driving motor 10301 and the impeller 10102 are completely sealed, which can effectively prevent leakage. An exhaust interface 10106 is formed on one side of the bottom end of the wind guide shell 10101. By forming the exhaust interface 10106 on one side of the bottom end of the wind guide shell 10101, it is convenient to connect an external pipeline and facilitate the air flow generated by the rotation of the impeller 10102 to be discharged from the exhaust interface 10106.

[0036] Among them, a bearing bowl 10104 is fixedly installed in the middle of the inner side of the wind guide shell 10101, and a rotating bearing 10105 is fixedly installed inside the bearing bowl 10104. By fixedly installing the rotating bearing 10105 inside the bearing bowl 10104, it is convenient to install the rotating bearing 10105 and can play a role in protecting the rotating bearing 10105.

[0037] Among them, the rotating bearing 10105 is sleeved on the outside of the driven magnet 10103, and the inner side of the rotating bearing 10105 is fixedly connected to the outside of the driven magnet 10103. By sleeving the rotating bearing 10105 on the outside of the driven magnet 10103 and fixedly connecting the inner side of the rotating bearing 10105 to the outside of the driven magnet 10103, it is convenient to rotatably connect the impeller 10102 to the wind guide shell 10101 and can effectively improve the rotation stability of the impeller 10102.

[0038] Among them, a fixing sleeve 10303 is fixedly installed outside the driving motor 10301, and a mounting piece 10304 is fixedly installed outside the fixing sleeve 10303. The mounting piece 10304 is fixedly connected to one side of the air guide housing 10101 where the driving groove 10109 is provided. By fixedly installing the mounting piece 10304 outside the fixing sleeve 10303 and fixedly connecting the mounting piece 10304 to one side of the air guide housing 10101 where the driving groove 10109 is provided, it is convenient to fixedly connect the driving motor 10301 and the air guide housing 10101, facilitating the driving motor 10301 to drive the impeller 10102 inside the air guide housing 10101 to rotate.

[0039] Among them, a first sealing groove 10107 is provided on one side of the air guide housing 10101 away from the driving groove 10109, and a threaded hole 10108 is provided outside the first sealing groove 10107. By providing the first sealing groove 10107 on one side of the air guide housing 10101 away from the driving groove 10109 and providing the threaded hole 10108 outside the first sealing groove 10107, it is convenient to fixedly install the maintenance cover assembly 102 on one side of the air housing assembly 101.

[0040] Among them, the maintenance cover assembly 102 includes a cover body 10201, and an air inlet interface 10202 is fixedly installed in the middle of one side of the cover body 10201. By fixedly installing the air inlet interface 10202 in the middle of one side of the cover body 10201, it is convenient to connect an external pipeline, facilitating external gas to enter the device from the air inlet interface 10202.

[0041] Among them, a collector 10203 is fixedly installed at one end of the air inlet interface 10202, and one end of the collector 10203 is inserted inside the impeller 10102. By inserting one end of the collector 10203 inside the impeller 10102, it is convenient to guide the gas entering the device, improving the exhaust efficiency of the device.

[0042] Among them, a second sealing groove 10204 is provided on one side of the cover body 10201 away from the air inlet interface 10202, a sealing ring 10205 is fixedly installed inside the second sealing groove 10204, and one side of the sealing ring 10205 is arranged inside the first sealing groove 10107. By fixedly installing the sealing ring 10205 inside the second sealing groove 10204 and arranging one side of the sealing ring 10205 inside the first sealing groove 10107, it is convenient for the sealing ring 10205 to seal the gap between the cover body 10201 and the air guide housing 10101, improving the leak prevention performance.

[0043] Among them, screw holes 10206 are formed on the outer side of the second sealing groove 10204, and fixing screws 10207 are inserted into the screw holes 10206. One end of the fixing screw 10207 is threadedly connected to the threaded hole 10108. By threadedly connecting one end of the fixing screw 10207 to the threaded hole 10108, it is convenient to firmly fix and connect the cover body 10201 to the air guide housing 10101, and it is also convenient to disassemble the cover body 10201, facilitating the inspection and maintenance of the interior.

[0044] Specifically, one end of the fixing screw 10207 is threadedly connected to the threaded hole 10108, which facilitates the stable fixed connection between the cover body 10201 and the air guide housing 10101, and also facilitates the disassembly of the cover body 10201, making it convenient to perform maintenance and repair on the interior. The sealing ring 10205 is fixedly installed inside the second sealing groove 10204, and one side of the sealing ring 10205 is arranged inside the first sealing groove 10107, which facilitates the sealing ring 10205 to seal the gap between the cover body 10201 and the air guide housing 10101, improving the anti-leakage performance. The air inlet interface 10202 is fixedly installed in the middle of one side of the cover body 10201, which facilitates the connection of an external pipeline and allows external gas to enter the device through the air inlet interface 10202. One end of the air collector 10203 is inserted inside the impeller 10102, which facilitates the guiding of the gas entering the device and improves the exhaust efficiency of the device. The mounting piece 10304 is fixedly installed on the outer side of the fixing sleeve 10303, and the mounting piece 10304 is fixedly connected to one side of the air guide housing 10101 where the driving groove 10109 is provided, which facilitates the fixed connection between the driving motor 10301 and the air guide housing 10101, and enables the driving motor 10301 to drive the impeller 10102 inside the air guide housing 10101 to rotate. The driving magnet 10302 is fixedly installed at the output end of the driving motor 10301, which facilitates the driving motor 10301 to drive the driving magnet 10302 to rotate. The driving magnet 10302 and the driven magnet 10103 are respectively arranged on both sides of the air guide housing 10101, and the driving magnet 10302 and the driven magnet 10103 are magnetically coupled, which facilitates the driving magnet 10302 to drive the driven magnet 10103 to rotate, thereby facilitating the driving motor 10301 to drive the impeller 10102 to rotate to generate an air flow. Moreover, the driving motor 10301 and the impeller 10102 are completely sealed, which can effectively prevent leakage. The exhaust interface 10106 is provided on one side of the bottom end of the air guide housing 10101, which facilitates the connection of an external pipeline and allows the air flow generated by the rotation of the impeller 10102 to be discharged through the exhaust interface 10106. The rotating bearing 10105 is fixedly installed inside the bearing bowl 10104, which facilitates the installation of the rotating bearing 10105 and can protect the rotating bearing 10105. The rotating bearing 10105 is sleeved on the outer side of the driven magnet 10103, and the inner side of the rotating bearing 10105 is fixedly connected to the outer side of the driven magnet 10103, which facilitates the rotational connection between the impeller 10102 and the air guide housing 10101 and can effectively improve the rotational stability of the impeller 10102.

[0045] This specific embodiment is only an interpretation of the present application and does not limit the present application. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A centrifugal fan with a leakage prevention function, characterized in that, It includes a wind housing assembly (101), the wind housing assembly (101) includes a wind guiding housing (10101), a driving groove (10109) is formed on one side of the wind guiding housing (10101), and a maintenance cover assembly (102) is fixedly installed on the other side of the wind guiding housing (10101). A driving assembly (103) is arranged inside the driving groove (10109), the driving assembly (103) includes a driving motor (10301), a driving magnet (10302) is fixedly installed at the output end of the driving motor (10301), the driving magnet (10302) is arranged inside the driving groove (10109), an impeller (10102) is arranged inside the wind guiding housing (10101), a driven magnet (10103) is fixedly installed on one side of the impeller (10102), the driving magnet (10302) and the driven magnet (10103) are respectively arranged on both sides of the wind guiding housing (10101), and the driving magnet (10302) and the driven magnet (10103) are magnetically coupled. An exhaust interface (10106) is formed on one side of the bottom end of the wind guiding housing (10101).

2. The centrifugal fan with a leakage prevention function according to claim 1, characterized in that, A bearing bowl (10104) is fixedly installed in the middle of the inner side of the wind guiding housing (10101), and a rotating bearing (10105) is fixedly installed inside the bearing bowl (10104).

3. The centrifugal fan with a leakage prevention function according to claim 2, characterized in that, The rotating bearing (10105) is sleeved on the outer side of the driven magnet (10103), and the inner side of the rotating bearing (10105) is fixedly connected to the outer side of the driven magnet (10103).

4. A centrifugal fan with a leakage prevention function according to claim 1, characterized in that, A fixing sleeve (10303) is fixedly installed on the outer side of the driving motor (10301), a mounting piece (10304) is fixedly installed on the outer side of the fixing sleeve (10303), and the mounting piece (10304) is fixedly connected to the side of the wind guiding housing (10101) where the driving groove (10109) is formed.

5. A centrifugal fan with a leakage prevention function according to claim 1, characterized in that, A first sealing groove (10107) is formed on the side of the wind guiding housing (10101) away from the driving groove (10109), and a threaded hole (10108) is formed on the outer side of the first sealing groove (10107).

6. The centrifugal fan with a leakage prevention function according to claim 1, characterized in that, The maintenance cover assembly (102) includes a cover body (10201), and an air inlet interface (10202) is fixedly installed in the middle of one side of the cover body (10201).

7. The centrifugal fan with a leak prevention function according to claim 6, characterized in that, A collector (10203) is fixedly installed at one end of the air inlet interface (10202), and one end of the collector (10203) is inserted into the inner side of the impeller (10102).

8. The centrifugal fan with a leakage prevention function according to claim 6, characterized in that, A second sealing groove (10204) is formed on the side of the cover body (10201) away from the air inlet interface (10202), a sealing ring (10205) is fixedly installed inside the second sealing groove (10204), and one side of the sealing ring (10205) is arranged inside the first sealing groove (10107).

9. The centrifugal fan with a leakage prevention function according to claim 8, characterized in that, A screw hole (10206) is formed on the outer side of the second sealing groove (10204), a fixing screw (10207) is inserted into the screw hole (10206), and one end of the fixing screw (10207) is threadedly connected to the threaded hole (10108).

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