Heat dissipation device of three-phase asynchronous motor

Abstract

The utility model discloses a heat dissipation device of a three-phase asynchronous motor, and relates to the technical field of motor heat dissipation, the heat dissipation device comprises a fan, the fan is provided with a hub installed on a motor shaft, and the fan is also provided with a plurality of fan blade assemblies annularly inserted in the hub; the plurality of cleaning brush assemblies are annularly mounted on the motor shaft; and the plurality of fan blade assemblies and the plurality of cleaning brush assemblies are arranged at intervals. The LED lamp has the advantages of being convenient to replace and good in heat dissipation.

Description

Technical Field

[0001] The present application relates to the technical field of motor heat dissipation, and in particular to a heat dissipation device for a three-phase asynchronous motor. Background Art

[0002] When the motor is working, its internal parts will generate heat, thereby increasing the overall temperature of the motor. In order to cool the motor, a fan will be installed on the motor shaft of the motor as a heat dissipation component. However, the fan hub and blades are currently integrated. When the blades are damaged, the heat dissipation of the motor will be affected. In addition, the fan needs to be removed as a whole when replacing the blades, which increases the cost. Utility Model Content

[0003] In view of this, the present application provides a heat dissipation device for a three-phase asynchronous motor to solve the technical problem that the hub and blades of the current fan are integrated, and the heat dissipation of the motor will be affected when the blades are damaged. In addition, the fan needs to be removed as a whole when replacing the blades, which increases the cost.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A heat dissipation device for a three-phase asynchronous motor, comprising:

[0006] A fan, wherein the fan has a hub mounted on the motor shaft, and the fan also has a plurality of fan blade assemblies annularly plugged into the hub;

[0007] A plurality of cleaning brush assemblies are annularly mounted on the motor shaft, and a plurality of fan blade assemblies and a plurality of cleaning brush assemblies are spaced apart.

[0008] Furthermore, the fan blade assembly includes: a fixing seat and a blade connected to the fixing seat, and the fixing seat is inserted into a slot of the hub.

[0009] Furthermore, both sides of the slot are provided with alignment convex plates, and both ends of the fixing seat are provided with alignment grooves, and the alignment grooves are matched with the corresponding alignment convex plates.

[0010] Furthermore, a first screw hole is provided on the bottom surface of the slot, and a through hole is provided on the fixing seat, and the through hole corresponds to the first screw hole.

[0011] Furthermore, the wheel hub comprises a wheel hub body sleeved on the motor shaft and a limiting protrusion, the limiting protrusion can be abutted against the step surface of the motor shaft, and a plurality of fixing seats are annularly plugged and installed on the wheel hub body.

[0012] Furthermore, the cleaning brush assembly includes a brush plate and hard bristles arranged on the brush plate, and the hard bristles abut against the filter screen of the casing.

[0013] Furthermore, the brush plate is installed in a corresponding socket opened on the motor shaft.

[0014] It can be seen from the above technical solution that the advantages of the utility model are:

[0015] 1. In the present application, the fan blade assembly is mainly composed of a fixing seat and a blade. The wheel hub and the fan blade assembly can be disassembled. When the fan blade assembly is damaged, it can be replaced separately without replacing the wheel hub and the fan blade assembly, thereby reducing the cost. In addition, the fan blade assembly is installed on the wheel hub by plugging and then fixed by screws, which makes the two not only easy to replace but also more reliable and stable in connection.

[0016] 2. In the present application, the fan blade assembly is mounted on the wheel hub, and the wheel hub is mounted on the motor shaft by a key connection and is locked by a locking nut. Therefore, the wheel hub is installed reliably, thereby ensuring that the wheel hub and the fan blade assembly rotate smoothly when the motor shaft rotates, so that the fan blade assembly drives the air flow to cool the casing.

[0017] 3. The present application also provides a cleaning brush assembly, which can clean the filter of the air hood to prevent the filter from being blocked, thereby ensuring air circulation inside and outside the air hood and achieving a good heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0019] Figure 1 This is a schematic diagram of the structure of this application.

[0020] Figure 2 for Figure 1 A partial enlarged view of point A.

[0021] Figure 3 This is a schematic diagram of the structure of the hub and blade assembly of the present application.

[0022] Figure 4 for Figure 3 A partial enlarged view of point B.

[0023] Figure 5 This is a schematic structural diagram of the wheel hub of the present application.

[0024] Figure 6 This is a schematic diagram of the structure of the fixing seat of the present application.

[0025] Figure 7 It is a schematic diagram of the structure of a casing in the prior art.

[0026] Figure 8 This is a schematic diagram of the structure of the present application and the casing installation.

[0027] Fig. 9 It is a structural schematic diagram of the connection relationship between the motor shaft and the brush plate.

[0028] Fig.10 for Fig. 9 A partial enlarged view of point C.

[0029] Explanation of the reference numerals: 1-hub; 11-hub body; 111-first through hole; 112-slot; 113-alignment convex plate; 114-first screw hole; 115-keyway; 12-limiting protrusion; 2-blade assembly; 21-fixed seat; 211-through hole; 212-alignment groove; 22-blade; 4-cleaning brush assembly; 41-brush plate; 42-hard bristles; 5-locking nut; 100-housing; 400-motor shaft; 401-socket; 402-step surface; 403-second keyway; 404-slotted flat-end set screw; 405-second screw hole; 500-wind hood; 600-filter. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the implementation modes and the accompanying drawings. Here, the illustrative implementation modes and descriptions of the present application are used to explain the present application, but are not intended to limit the present application.

[0031] refer to Figures 1 to 10 ,like Figure 1 , Figure 7 and Figure 8As shown, this embodiment provides a heat dissipation device for a three-phase asynchronous motor, the heat dissipation device is installed on the motor shaft 400 of the housing 100, a fan cover 500 is installed at the rear end of the housing 100, the heat dissipation device is located in the fan cover 500, the heat dissipation device includes: a hub 1, a plurality of fan blade assemblies 2 and a plurality of cleaning brush assemblies 4, the hub 1 is sleeved on the motor shaft 400, the hub 1 is connected to the motor shaft 400 through a flat key, and a locking nut 5 is threadedly connected to the motor shaft 400, and the locking nut 5 can lock the hub 1 on the motor shaft 4 00, a plurality of fan blade assemblies 2 are annularly plugged into the wheel hub 1, and the wheel hub 1 serves to position and install the fan blade assemblies 2; a plurality of sockets 401 are annularly opened on the motor shaft 400, and the cleaning brush assemblies 4 are installed on the corresponding sockets 401, and a plurality of fan blade assemblies 2 and a plurality of cleaning brush assemblies 4 are arranged at intervals, and the cleaning brush assemblies 4 are against the filter screen 600 on the wind hood 500, so as to remove dust attached to the filter screen 600, thereby making the air replacement inside and outside the wind hood 500 more efficient, thereby improving the heat dissipation efficiency.

[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the wheel hub 1 includes a wheel hub body 11 and a limiting protrusion 12 which is sleeved on the motor shaft 400. The limiting protrusion 12 can be abutted against the step surface 402 of the motor shaft 400 to achieve accurate positioning of the wheel hub 1 and facilitate the locking nut 5 to lock the wheel hub 1 on the motor shaft 400.

[0033] Preferably, a first through hole 111 for the motor shaft 400 to pass through is opened in the hub body 11, the first through hole 111 passes through the limiting protrusion 12, a first key groove 115 is opened on the inner wall of the first through hole 111, a second key groove 403 corresponding to the first key groove 115 is opened on the motor shaft 400, and a flat key is provided between the first key groove 115 and the second key groove 403.

[0034] like Figure 3 and Figure 4 As shown, the fan blade assembly 2 includes: a fixing seat 21 and a blade 22 connected to the fixing seat 21, and the fixing seat 21 is inserted into the slot 112 of the hub body 11. The plug-in method is adopted to make it easier to install the fixing seat 21 on the hub body 11, and the fixing seat 21 is inserted into the slot 112 and then fixed by screws. Compared with only relying on screws to fix, the installation is more secure.

[0035] Preferably, a plurality of fixing seats 21 are annularly plug-connected and installed on the hub body 11 .

[0036] Preferably, a plurality of slots 112 are arranged in an annular shape on the outer circumference of the hub body 11 .

[0037] like Figure 4 , Figure 5 and Figure 6 As shown, both sides of the slot 112 are provided with inwardly extending alignment protrusions 113, and both ends of the fixing seat 21 are provided with alignment grooves 212. When installing the fixing seat 21, the fixing seat 21 is pushed into the slot 112 from the outside of the hub body 11, and the alignment protrusions 113 can be slidably inserted into the corresponding alignment grooves 212. By matching the alignment protrusions 113 with the alignment grooves 212, the fixing seat 21 can be accurately installed on the hub body 11.

[0038] like Figure 5 and Figure 6 As shown, a first screw hole 114 is provided on the bottom surface of the slot 112, and a through hole 211 corresponding to the first screw hole 114 is provided on the fixing seat 21. When the fixing seat 21 is inserted into the slot 112, the through hole 211 is opposite to the first screw hole 114, and the screw passes through the through hole 211 and is threadedly connected to the first screw hole 114.

[0039] like Figure 1 and Figure 8 As shown, the cleaning brush assembly 4 includes a brush plate 41 and hard bristles 42 arranged on the brush plate 41 , and the hard bristles 42 abut against the filter screen 600 of the air hood 500 .

[0040] Preferably, the brush plate 41 is fixedly installed in a corresponding insertion hole 401 opened on the motor shaft 400 .

[0041] like Fig. 9 and Fig.10 As shown, a second screw hole 405 on the side wall of the socket 401 is threadedly connected to a slotted flat-end set screw 404, the lower end of the brush plate 41 extends into the socket 401, and the end of the slotted flat-end set screw 404 presses against the lower end of the brush plate 41, so that the lower end of the brush plate 41 is fixedly connected to the socket 401.

[0042] like Figure 7 and Figure 8 As shown, a hood 500 is installed at the rear end of the casing 100, a motor shaft 400 is installed on the casing 100, and a filter 600 is installed on the hood 500. When the motor shaft 400 rotates, the hub 1 and the fan blade assembly 2 are driven to rotate, and the blades 22 allow the external airflow to enter the hood 500 through the filter 600, thereby achieving heat dissipation and cooling of the three-phase asynchronous motor. At the same time, when the motor shaft 400 rotates to drive the hub 1, the fan blade assembly 2 and the cleaning brush assembly 4 to rotate synchronously, the cleaning brush assembly 4 can rotate to clean the filter 600, thereby preventing dust and lint from adhering to the filter 600, allowing the airflow to flow smoothly, thereby improving the heat dissipation effect.

[0043] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the embodiments of the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A heat dissipation device for a three-phase asynchronous motor, characterized in that: include: A fan, the fan comprising a hub (1) mounted on a motor shaft (400), the fan also comprising a plurality of fan blade assemblies (2) annularly plugged into the hub (1); A plurality of cleaning brush assemblies (4) are annularly mounted on the motor shaft (400), and a plurality of fan blade assemblies (2) and a plurality of cleaning brush assemblies (4) are arranged at intervals.

2. The heat dissipation device for a three-phase asynchronous motor according to claim 1, characterized in that: The fan blade assembly (2) comprises a fixing seat (21) and a blade (22) connected to the fixing seat (21); the fixing seat (21) is inserted into a slot (112) of the hub (1).

3. The heat dissipation device for a three-phase asynchronous motor according to claim 2, characterized in that: Both sides of the slot (112) are provided with alignment convex plates (113), and both ends of the fixing seat (21) are provided with alignment grooves (212), and the alignment grooves (212) are matched with the corresponding alignment convex plates (113).

4. The heat dissipation device for a three-phase asynchronous motor according to claim 2, characterized in that: A first screw hole (114) is provided on the bottom surface of the slot (112), and a through hole (211) is provided on the fixing seat (21), wherein the through hole (211) corresponds to the first screw hole (114).

5. The heat dissipation device for a three-phase asynchronous motor according to claim 2, characterized in that: The wheel hub (1) comprises a wheel hub body (11) sleeved on the motor shaft (400) and a limiting protrusion (12), wherein the limiting protrusion (12) can abut against a step surface (402) of the motor shaft (400), and a plurality of fixing seats (21) are annularly plugged and installed on the wheel hub body (11).

6. The heat dissipation device for a three-phase asynchronous motor according to claim 1, characterized in that: The cleaning brush assembly (4) comprises a brush plate (41) and hard bristles (42) arranged on the brush plate (41), wherein the hard bristles (42) abut against the filter screen (600) of the housing (100).

7. The heat dissipation device for a three-phase asynchronous motor according to claim 6, characterized in that: The brush plate (41) is installed in a corresponding insertion hole (401) provided on the motor shaft (400).

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