Operation feedback fan

Abstract

The utility model discloses an operation feedback draught fan, and relates to the technical field of draught fans, the operation feedback draught fan comprises a stator assembly, a rotating shaft and a rotor assembly, the rotating shaft is rotatably installed on the stator assembly, the rotor assembly is installed at one end of the rotating shaft, magnetic steel is arranged on the rotating shaft, a Hall sensor is installed on the stator assembly, and the Hall sensor is connected with the rotating shaft. The magnetic steel and the Hall sensor are oppositely arranged, when the magnetic steel rotates along with the rotating shaft, the Hall sensor senses the magnetic steel and generates an electric signal used for monitoring, the electric signal used for monitoring is transmitted to a monitoring center, the fan is in a normal operation state, the rotating shaft does not drive the magnetic steel to rotate, and the rotating shaft does not drive the magnetic steel to rotate. And the Hall sensor cannot sense the magnetic steel, no electric signal is transmitted to the monitoring center, the fan is in a fault state, on-site investigation and monitoring by maintenance personnel are reduced, and the maintenance cost of the fan is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of fans, and in particular to an operation feedback fan. Background Art

[0002] As the country vigorously promotes new energy, new energy storage systems have developed rapidly. New energy storage systems will generate a lot of heat in the process of energy storage, and fans need to be installed for heat dissipation. Long-term operation of fans will lead to fan failure. Because the faulty fans are not monitored and maintained in time, the new energy storage system cannot operate normally.

[0003] In order to reduce the occurrence of failures in new energy storage systems, it is necessary to increase the number of personnel to monitor the new energy storage systems and detect faulty fans in a timely manner. Therefore, for new energy storage system companies, how to detect faulty fans on new energy storage systems in a timely manner and reduce monitoring and maintenance costs is an urgent problem that such companies need to solve. Utility Model Content

[0004] In order to help solve the problem of timely discovering faulty fans, the present application provides an operation feedback fan, which adopts the following technical solution:

[0005] A running feedback fan comprises a stator assembly, a rotating shaft and a rotor assembly, wherein the rotating shaft is rotatably mounted on the stator assembly, the rotor assembly is mounted on one end of the rotating shaft, a magnetic steel is provided on the rotating shaft, a Hall sensor is mounted on the stator assembly, the magnetic steel and the Hall sensor are arranged opposite to each other, and when the magnetic steel rotates with the rotating shaft, the Hall sensor senses the magnetic steel and generates an electrical signal for monitoring.

[0006] By adopting the above technical solution, a magnet is installed on the rotating shaft and a Hall sensor is installed on the stator assembly. When the magnet rotates with the rotating shaft, the Hall sensor senses the magnet and generates an electrical signal for monitoring the operation of the fan. The electrical signal for monitoring is transmitted to the monitoring center, and the fan is in normal operation. When the rotating shaft does not drive the magnet to rotate, the Hall sensor cannot sense the magnet, and no electrical signal is transmitted to the monitoring center. The fan is in a fault state, which helps to reduce the number of maintenance personnel going to the site for inspection and monitoring, and reduce the maintenance cost of the fan.

[0007] Optionally, the rotating shaft is mounted on the stator assembly via a first bearing and a second bearing, the rotor assembly is mounted on one end of the rotating shaft close to the second bearing, and the magnetic steel is fixedly mounted on one end of the rotating shaft close to the first bearing.

[0008] By adopting the above technical solution, the magnet is fixedly installed at one end of the rotating shaft close to the first bearing, so that the magnet is away from the stator assembly, which helps to reduce the impact of the magnetic field generated by the stator and rotor on the magnet and improve the accuracy of the Hall sensor's sensing of the magnet.

[0009] Optionally, a mounting groove is provided at one end of the rotating shaft close to the first bearing, and the magnetic steel is fixedly installed in the mounting groove.

[0010] By adopting the above technical solution, the installation groove is set at one end of the rotating shaft close to the first bearing, which helps to reduce the impact of the installation groove on the strength of the rotating shaft. The magnet is fixedly installed in the installation groove, which utilizes the firmness of the magnet installation and improves the reliability of the fixed installation of the magnet.

[0011] Optionally, the stator assembly includes a stator end cover and a bearing seat, one end of the stator end cover is provided with a mounting flange, the bearing seat is fixedly mounted on the end of the stator end cover away from the mounting flange, the first bearing is mounted on the end of the stator end cover close to the mounting flange, the second bearing is mounted in the bearing seat, the rotating shaft passes through the first bearing and the second bearing, and the Hall sensor is fixedly mounted on the mounting flange.

[0012] By adopting the above technical solution, the first bearing and the second bearing are respectively installed on the stator end cover and the bearing seat, and the rotating shaft passes through the first bearing and the second bearing, which is convenient for disassembly and maintenance of the fan. The Hall sensor is fixedly installed on the mounting flange, which helps to reduce the impact of the heat source generated by the fan during operation on the Hall sensor.

[0013] Optionally, the stator assembly also includes a dust cover, a mounting cavity is formed between the mounting flange and an end of the rotating shaft away from the second bearing, the dust cover extends into the mounting cavity and is sealed and fixedly connected to the mounting cavity, the dust cover is provided with a fixing groove, and the Hall sensor is fixedly installed in the fixing groove.

[0014] By adopting the above technical solution, the dust cover is installed in the installation cavity formed by the installation flange and the rotating shaft, and is sealed and fixedly connected to the installation cavity, which helps to prevent dust from entering the gap between the rotor assembly and the stator assembly and improves the reliability of the fan operation. The Hall sensor is fixedly installed in the fixed groove, which helps to reduce the adverse effects of the working heat source on the Hall sensor.

[0015] Optionally, the dust cover is made of engineering plastic or nylon material.

[0016] By adopting the above technical solution, the dust cover is made of engineering plastic or nylon material, which is beneficial to prevent the working heat source from being transferred to the Hall sensor through the dust cover, and helps to reduce the working environment temperature of the Hall sensor.

[0017] Optionally, the stator assembly further comprises a waterproof cover, which is sleeved on the dustproof cover and fixedly mounted on the mounting flange, and the waterproof cover is provided with a lead hole, through which the wires of the Hall sensor pass.

[0018] By adopting the above technical solution, the waterproof cover is arranged on the dustproof cover, and the wires of the Hall sensor are passed through the lead holes of the waterproof cover, which helps to prevent water from entering the Hall sensor and the stator assembly and improve the reliability of the fan operation.

[0019] Optionally, the stator assembly also includes a stator core, which is fixedly mounted on the stator end cover; the rotor assembly includes a rotor core and a rotor flange, the rotor core is fixedly mounted on the rotor flange, the rotor flange is fixedly mounted on an end of the rotating shaft away from the first bearing, and the rotor core is arranged opposite to the stator core.

[0020] By adopting the above technical solution, the stator core is fixedly mounted on the stator end cover, the rotor core is fixedly mounted on one end of the rotating shaft through the rotor flange, and the rotor core and the stator core are arranged relative to each other, which helps to firmly install the rotor core and the stator core and improve the reliability of the fan operation.

[0021] Optionally, an annular ring is provided at one end of the rotor core away from the rotor flange, an annular groove is provided at one end of the mounting flange close to the rotor core, and the annular ring extends into the annular groove and is gap-matched with the annular groove.

[0022] By adopting the above technical solution, an annular ring is provided on the rotor flange, an annular groove is provided on the mounting flange, the annular ring extends into the annular groove and cooperates with the annular groove gap, which helps to prevent dust or debris from entering the rotor core through the gap between the rotor core and the stator core, thereby improving the reliability of the fan operation.

[0023] Optionally, a wind wheel is fixedly mounted on the rotor core, and an air guide ring for guiding wind is mounted on a side of the wind wheel away from the mounting flange.

[0024] By adopting the above technical solution, the wind wheel is fixedly installed on the rotor core, and an air guide ring is installed on one side of the wind wheel, which helps to reduce the wind resistance entering the fan and improve the working efficiency of the fan.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The Hall sensor senses the magnet and generates an electrical signal for monitoring the operation of the fan. The electrical signal for monitoring is transmitted to the monitoring center. If the fan operates normally, no electrical signal is transmitted to the monitoring center and the fan stops working, which helps to reduce the number of maintenance personnel going to the site for inspection and monitoring and reduce the maintenance cost of the fan.

[0027] 2. The magnet is fixedly installed at one end of the rotating shaft close to the first bearing, so that the magnet is away from the stator assembly, which helps to reduce the impact of the magnetic field generated by the stator and rotor on the magnet and improve the accuracy of the Hall sensor's sensing of the magnet.

[0028] 3. The mounting groove is arranged at one end of the rotating shaft close to the first bearing, which helps to reduce the influence of the mounting groove on the strength of the rotating shaft. The magnetic steel is fixedly installed in the mounting groove, which utilizes the firmness of the magnetic steel installation and improves the reliability of the magnetic steel fixed installation.

[0029] 4. Fixing the Hall sensor on the mounting flange helps reduce the impact of the heat source generated by the fan during operation on the Hall sensor.

[0030] 5. The dust cover is sealed and fixed to the installation cavity, which helps prevent dust from entering the gap between the rotor assembly and the stator assembly, improving the reliability of the fan operation. The Hall sensor is fixedly installed in the fixed groove, which helps to reduce the adverse effects of the working heat source on the Hall sensor.

[0031] 6. The dust cover is made of engineering plastic or nylon material, which is helpful to prevent the working heat source from being transferred to the Hall sensor through the dust cover, and helps to reduce the working environment temperature of the Hall sensor.

[0032] 7. The waterproof cover is set on the dust cover, and the wire of the Hall sensor is passed through the lead hole of the waterproof cover, which helps to prevent water from entering the Hall sensor and the stator assembly and improve the reliability of the fan operation.

[0033] 8. The stator core is fixedly mounted on the stator end cover, and the rotor core is fixedly mounted on one end of the rotating shaft through the rotor flange. The rotor core and the stator core are arranged relative to each other, which helps to firmly install the rotor core and the stator core and improve the reliability of the fan operation.

[0034] 9. The annular ring extends into the annular groove and cooperates with the annular groove gap, which helps to prevent dust or debris from entering the rotor core through the gap between the rotor core and the stator core, thereby improving the reliability of the fan operation.

[0035] 10. The wind wheel is fixedly installed on the rotor core, and an air guide ring is installed on one side of the wind wheel, which helps to reduce the wind resistance entering the fan and improve the working efficiency of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a full cross-sectional view of an operation feedback fan disclosed in this application.

[0037] Figure 2 for Figure 1 A partial enlarged view of the middle I position.

[0038] Description of reference numerals:

[0039] 1. Stator assembly; 11. Stator end cover; 111. Mounting flange; 1111. Annular groove; 112. Mounting cavity; 12. Bearing seat; 13. Dust cover; 131. Fixing groove; 14. Waterproof cover; 141. Lead hole; 15. Stator core; 2. Rotating shaft; 21. Mounting groove; 3. Rotor assembly; 31. Rotor core; 311. Annular ring; 32. Rotor flange; 33. Fastener; 4. Magnet; 5. Hall sensor; 51. Wire; 6. First bearing; 7. Second bearing; 8. Wind wheel; 9. Wind guide ring. DETAILED DESCRIPTION

[0040] The following combination Figure 1 to Figure 2 This application is described in further detail.

[0041] The embodiment of the present application discloses an operation feedback fan.

[0042] A running feedback fan. Figure 1 and Figure 2 , including a stator assembly 1, a rotating shaft 2 and a rotor assembly 3. The rotating shaft 2 is rotatably mounted on the stator assembly 1, the rotor assembly 3 is mounted at one end of the rotating shaft 2, a magnetic steel 4 is provided on the rotating shaft 2, the magnetic steel 4 is a permanent magnet, a Hall sensor 5 is mounted on the stator assembly 1, the magnetic steel 4 and the Hall sensor 5 are arranged opposite to each other, when the magnetic steel 4 rotates with the rotating shaft 2, the Hall sensor 5 senses the magnetic steel 4 and generates an electrical signal for monitoring the operation of the fan, the electrical signal for monitoring is transmitted to the monitoring center, the fan is operating normally, no electrical signal is transmitted to the monitoring center, and the fan is in a stopped working state, which helps to reduce the number of maintenance personnel going to the site for investigation and monitoring, and reduces the maintenance cost of the fan.

[0043] Reference Figure 1 The rotating shaft 2 is installed on the stator assembly 1 through the first bearing 6 and the second bearing 7, the rotor assembly 3 is installed at one end of the rotating shaft 2 close to the second bearing 7, and the magnetic steel 4 is fixedly installed at one end of the rotating shaft 2 close to the first bearing 6, so that the magnetic steel 4 is away from the stator assembly 1, which helps to reduce the influence of the magnetic field generated by the stator and the rotor on the magnetic steel 4, and improve the accuracy of the electrical signal generated by the Hall sensor 5 to the magnetic steel 4.

[0044] Reference Figure 2 An installation groove 21 is provided at one end of the rotating shaft 2 close to the first bearing 6. In the embodiment of the present application, the magnetic steel 4 is tightly matched with the installation groove 21 so that the magnetic steel 4 is fixedly installed in the installation groove 21. In other embodiments of the present application, the magnetic steel 4 is bonded in the installation groove 21 by glue. The installation groove 21 is provided at one end of the rotating shaft 2 close to the first bearing 6, which helps to reduce the influence of the installation groove 21 on the strength of the rotating shaft 2. The magnetic steel 4 is fixedly installed in the installation groove 21, which utilizes the firmness of the installation of the magnetic steel 4 and improves the reliability of the fixed installation of the magnetic steel 4.

[0045] Reference Figure 1 The stator assembly 1 includes a stator end cover 11 and a bearing seat 12. A mounting flange 111 is provided at one end of the stator end cover 11. The bearing seat 12 is fixedly installed at the end of the stator end cover 11 away from the mounting flange 111. The first bearing 6 is installed on the end of the stator end cover 11 close to the mounting flange 111. The second bearing 7 is installed in the bearing seat 12. The rotating shaft 2 is penetrated by the first bearing 6 and the second bearing 7. The mounting flange 111 is fixedly installed with the Hall sensor 5. The stator end cover 11 and the bearing seat 12 are respectively installed. The rotating shaft 2 is penetrated by the first bearing 6 and the second bearing 7, which is convenient for disassembling and maintaining the fan. The mounting flange 111 is fixedly installed with the Hall sensor 5, which helps to reduce the influence of the heat source generated by the fan during operation on the Hall sensor 5. Figure 1 and Figure 2 The stator assembly 1 also includes a dust cover 13, and a mounting cavity 112 is formed between the mounting flange 111 and the end of the rotating shaft 2 away from the second bearing 7. The dust cover 13 extends into the mounting cavity 112 and is sealed and fixedly connected with the mounting cavity 112. The sealing surface between the dust cover 13 and the mounting cavity 112 is sealed and connected by a sealing ring in the embodiment of the present application, and other embodiments of the present application are sealed and connected by a sealant. The dust cover 13 is provided with a fixing groove 131, and the Hall sensor 5 is fixedly installed in the fixing groove 131 by a sealant. The dust cover 13 helps to prevent dust from entering the gap between the rotor assembly 3 and the stator assembly 1, thereby improving the reliability of the fan operation. The Hall sensor 5 is fixedly installed in the fixing groove 131 by a sealing glue, which is beneficial to reduce the adverse effect of the working heat source on the Hall sensor 5 and improve the service life of the Hall sensor 5.

[0046] Reference Figure 1 and Figure 2 The dust cover 13 is made of engineering plastic or nylon material. Engineering plastic and nylon materials have poor thermal conductivity, which is beneficial to prevent the working heat source from being transferred to the Hall sensor 5 through the dust cover 13, and helps to reduce the working environment temperature of the Hall sensor 5.

[0047] Reference Figure 1 The stator assembly 1 also includes a waterproof cover 14, which is sleeved on the dust cover 13 and fixedly mounted on the mounting flange 111. The waterproof cover 14 is provided with a lead hole 141, and the wire 51 of the Hall sensor 5 is passed through the lead hole 141, which helps to prevent water from entering the Hall sensor 5 and the stator assembly 1, thereby improving the reliability of the fan operation.

[0048] Reference Figure 1The stator assembly 1 also includes a stator core 15, which is fixedly mounted on the stator end cover 11, and the coil winding is wound on the stator core 15. The rotor assembly 3 includes a rotor core 31 and a rotor flange 32. The rotor core 31 is fixedly mounted on the rotor flange 32. The rotor flange 32 is fixedly mounted on the end of the rotating shaft 2 away from the first bearing 6 through a fastener 33. The rotor core 31 is arranged opposite to the stator core 15, which helps to firmly install the rotor core 31 and the stator core 15 and improve the reliability of the fan operation.

[0049] Reference Figure 1 An annular ring 311 is provided at one end of the rotor core 31 away from the rotor flange 32, and an annular groove 1111 is provided at one end of the mounting flange 111 close to the rotor core 31. The annular ring 311 extends into the annular groove 1111 and cooperates with the annular groove 1111 gap, which helps to prevent dust or debris from entering the rotor core 31 through the gap between the rotor core 31 and the stator core 15, thereby improving the reliability of the fan operation; a wind wheel 8 is fixedly installed on the rotor core 31, and an air guide ring 9 for guiding wind is installed on the side of the wind wheel 8 away from the mounting flange 111, which helps to reduce the wind resistance entering the fan and improve the working efficiency of the fan.

[0050] The working process of an operation feedback fan is as follows: the coil winding on the stator core 15 is energized to generate a magnetic field, the rotor core 31 rotates under the action of the magnetic field, the rotor core 31 drives the wind wheel 8 to rotate for air cooling, the rotor flange 32 drives the rotating shaft 2 to rotate, the magnetic steel 4 rotates under the rotation of the rotating shaft 2, when the magnetic steel 4 rotates to a position relative to the Hall sensor 5, the Hall sensor 5 senses the magnetic steel 4, the Hall sensor 5 generates and outputs a normal operation feedback electrical signal, when the rotating shaft 2 stops rotating, the Hall sensor 5 cannot sense the magnetic steel 4, the Hall sensor 5 does not generate an electrical signal, and cannot output an operation feedback electrical signal, the fan is in a fault waiting for repair state, reminding the workers to perform timely maintenance.

[0051] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application in sequence. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A running feedback fan, comprising a stator assembly (1), a rotating shaft (2) and a rotor assembly (3), wherein the rotating shaft (2) is rotatably mounted on the stator assembly (1), and the rotor assembly (3) is mounted on one end of the rotating shaft (2), characterized in that: A magnetic steel (4) is provided on the rotating shaft (2), a Hall sensor (5) is installed on the stator assembly (1), the magnetic steel (4) and the Hall sensor (5) are arranged opposite to each other, and when the magnetic steel (4) rotates with the rotating shaft (2), the Hall sensor (5) senses the magnetic steel (4) and generates an electrical signal for monitoring.

2. The operation feedback fan according to claim 1, characterized in that: The rotating shaft (2) is mounted on the stator assembly (1) via a first bearing (6) and a second bearing (7); the rotor assembly (3) is mounted on one end of the rotating shaft (2) close to the second bearing (7); and the magnetic steel (4) is fixedly mounted on one end of the rotating shaft (2) close to the first bearing (6).

3. The operation feedback fan according to claim 2, characterized in that: An installation groove (21) is provided at one end of the rotating shaft (2) close to the first bearing (6), and the magnetic steel (4) is fixedly installed in the installation groove (21).

4. The operation feedback fan according to claim 3, characterized in that: The stator assembly (1) comprises a stator end cover (11) and a bearing seat (12); a mounting flange (111) is provided at one end of the stator end cover (11); the bearing seat (12) is fixedly mounted on an end of the stator end cover (11) away from the mounting flange (111); the first bearing (6) is mounted on an end of the stator end cover (11) close to the mounting flange (111); the second bearing (7) is mounted in the bearing seat (12); the rotating shaft (2) passes through the first bearing (6) and the second bearing (7); and the Hall sensor (5) is fixedly mounted on the mounting flange (111).

5. The operation feedback fan according to claim 4, characterized in that: The stator assembly (1) further comprises a dust cover (13), a mounting cavity (112) being formed between the mounting flange (111) and an end of the rotating shaft (2) away from the second bearing (7), the dust cover (13) extending into the mounting cavity (112) and being sealed and fixedly connected to the mounting cavity (112), the dust cover (13) being provided with a fixing groove (131), and the Hall sensor (5) being fixedly mounted in the fixing groove (131).

6. The operation feedback fan according to claim 5, characterized in that: The dust cover (13) is made of engineering plastics or nylon material.

7. The operation feedback fan according to claim 5, characterized in that: The stator assembly (1) further comprises a waterproof cover (14), wherein the waterproof cover (14) is sleeved on the dust cover (13) and fixedly mounted on the mounting flange (111), and the waterproof cover (14) is provided with a lead hole (141), and the wire (51) of the Hall sensor (5) passes through the lead hole (141).

8. The operation feedback fan according to claim 7, characterized in that: The stator assembly (1) further comprises a stator core (15), wherein the stator core (15) is fixedly mounted on the stator end cover (11); the rotor assembly (3) comprises a rotor core (31) and a rotor flange (32), wherein the rotor core (31) is fixedly mounted on the rotor flange (32), wherein the rotor flange (32) is fixedly mounted on an end of the rotating shaft (2) away from the first bearing (6), and the rotor core (31) is arranged opposite to the stator core (15).

9. The operation feedback fan according to claim 8, characterized in that: An annular ring (311) is provided at one end of the rotor core (31) away from the rotor flange (32), an annular groove (1111) is provided at one end of the mounting flange (111) close to the rotor core (31), and the annular ring (311) extends into the annular groove (1111) and is loosely fitted with the annular groove (1111).

10. The operation feedback fan according to claim 9, characterized in that: A wind wheel (8) is fixedly mounted on the rotor core (31), and an air guide ring (9) for guiding wind is mounted on a side of the wind wheel (8) away from the mounting flange (111).

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