Motor fan housing with ventilation structure

Abstract

The utility model relates to the technical field of motor fan covers, in particular to a motor fan cover with a ventilation structure, which comprises an air inlet cover and a fixing cover, a plurality of conical holes are arranged on the air inlet cover, a filter assembly is arranged in the air inlet cover, and the motor fan cover further comprises a clamping assembly. The dustproof effect during cleaning is achieved, after the air inlet cover and the filter screen are rotated to the position away from the air inlet position of the device, the air inlet cover can be cleaned after being clamped by the clamping assembly, and the problems that the motor is damaged due to the fact that the cleaned dust enters the device and is accumulated when the air inlet cover is directly cleaned are solved. The motor needs to be maintained irregularly, and even a new motor needs to be replaced, so that the cost is increased; and meanwhile, cold air enters the device after being filtered by the filter screen from the conical hole, so that the problem that the running efficiency of fan blades is reduced due to the fact that large-particle impurities in air possibly enter the motor fan cover through a hollowed-out part which is arranged in a groove-shaped ventilating duct of an existing motor fan cover is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor hoods, in particular to a motor hood with a ventilation structure. Background Art

[0002] The electric motor generates a lot of heat when it rotates, and cool air must pass between the stator and the rotor. Therefore, there will be fan blades at one end of the generator. The high-speed fan blades need to blow out the cooling air. There must be a grid-like net outside it, which is the motor wind cover, to protect the fan blades and prevent objects from falling on the fan blades.

[0003] A Chinese patent with a search announcement number of CN219893082U discloses a motor hood with a slotted ventilation duct, which includes a coated cylindrical section, a transition connecting section, a half-length cylindrical section, an arc connecting section, and an air inlet baffle, which are connected in sequence from left to right and have gradually reduced diameters. The five coated cylindrical section, the transition connecting section, the half-length cylindrical section, the arc connecting section, and the air inlet baffle are all coaxially configured, and the coated cylindrical section is also formed with a wave groove section; this patent is more suitable for single-phase asynchronous motors, which are provided with a slotted ventilation duct in the direction of airflow flow, and the slotted ventilation duct provides flow guidance for the airflow to prevent the airflow from being affected by a large amount of turbulence generated when escaping and affecting the flow and heat dissipation efficiency. The slotted ventilation duct can cooperate with the heat dissipation reinforcement ribs on the front end motor to further transport the airflow to the reinforced heat dissipation ribs, so that the reinforced heat dissipation ribs can be air-cooled, so that the operating temperature of the motor is lower and the operating efficiency is higher.

[0004] Based on the above search and combined with the prior art, we found that:

[0005] The existing motor hood is fixedly installed on one side of the motor. When the motor hood needs to be cleaned, direct cleaning will cause the cleaned dust to enter the device, causing damage to the motor. The motor needs to be repaired from time to time, or even replaced with a new motor, which increases the cost, so there are limitations. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes a motor hood with a ventilation structure and a filter screen. After the motor stops operating for a period of time, the air inlet hood can be rotated to above the fixed hood and the filter screen can be cleaned to prevent dust from directly entering the motor hood due to direct cleaning, thereby causing damage to the motor. When the filter screen needs to be replaced, the bolts can be removed to replace the filter screen, which solves the problem of the existing motor hood having a groove-shaped ventilation duct containing a hollow part, and impurities in the air may enter the motor hood through the hollow part, which will affect the rotation of the fan blades and cause the operating efficiency of the fan blades to decrease.

[0007] The technical solution to achieve the purpose of the utility model is: a motor hood with a ventilation structure, including an air inlet hood and a fixed hood, the air inlet hood is provided with a plurality of conical holes, a filter assembly is arranged in the air inlet hood, the filter assembly includes a filter screen attached to the bottom of the air inlet hood, the air inlet hood and the filter screen are detachably fixedly connected, and also includes;

[0008] The clamping assembly comprises two groove plates fixedly connected to one side of the bottom of the fixed cover, and the grooves of the two groove plates are both slidably connected with clamping blocks.

[0009] Preferably, the air inlet cover and the fixed cover are both provided with a plurality of threaded holes with matching apertures, and the top of the air inlet cover is rotatably connected with bolts matching the threaded holes.

[0010] Preferably, a diamond-shaped column is fixed to one side of the air inlet cover, and one end of the diamond-shaped column passes through the air inlet cover and is rotatably connected to the fixed cover.

[0011] Preferably, a cam rod is rotatably installed on one side of the bottom of the fixed cover, a shift rod is fixedly installed on one side of the outer peripheral wall of the cam rod, the clamping block is slidably connected to guide rods on both sides adjacent to the cam rod, the other clamping block is fixedly connected to the end of the guide rod, the two guide rods are commonly fixedly connected to a connecting plate at one end close to the cam rod, and the part of the guide rod located between the two clamping blocks is provided with a spring.

[0012] Preferably, V-shaped grooves matching the diamond-shaped columns are formed on opposite sides of the two clamping blocks.

[0013] Preferably, an annular plate is provided inside the fixed cover, and a plurality of reinforcing ribs are fixedly connected between the annular plate and the fixed cover.

[0014] Compared with the prior art, the present invention has the following significant advantages:

[0015] First, the filter assembly provided by the utility model, at the beginning, the cold air enters the device after being filtered through the filter screen from the conical hole, and the conical hole provided can form a narrow tube effect, thereby increasing the wind speed of the cold air entering the device, so as to improve the cooling effect of the motor, and solves the problem that the existing motor wind cover has a slot-shaped ventilation duct with a hollow part, and large particles of impurities in the air may enter the motor wind cover through the hollow part, and the long-term accumulation of impurities will affect the rotation of the fan blades, resulting in a decrease in the operating efficiency of the fan blades;

[0016] Secondly: the clamping assembly provided by the utility model is used to rotate the air inlet hood together with the filter to a position away from the air inlet of the device during cleaning. Since the elastic force of the spring is less than the relative thrust of the two clamping blocks, the rotating cam rod can push the adjacent clamping blocks and the connecting plate to both sides to make the two clamping blocks move relative to each other. After the clamping blocks are fitted and clamped with the diamond columns, the air inlet hood and the filter can be cleaned, so as to solve the problem that when the air inlet hood is directly cleaned, the dust after cleaning enters the device and accumulates, causing damage to the motor, requiring irregular maintenance of the motor, or even replacement of a new motor, thereby increasing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0018] Figure 1 It is a schematic diagram of the front view structure of the device provided in one embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of a top view of the structure of a device provided in one embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of a partial structure of a device provided in one embodiment of the utility model;

[0021] Figure 4 The utility model provides in one embodiment Figure 2 Enlarged structural diagram at A in the middle.

[0022] Description of reference numerals:

[0023] 1. Air inlet cover; 2. Fixed cover; 3. Bolt; 31. Threaded hole; 4. Conical hole; 5. Diamond column; 6. Guide rod; 61. Spring; 7. Connecting plate; 8. Filter screen; 9. Ring plate; 10. Reinforcement rib; 11. Cam rod; 12. Clamp block; 13. Groove plate. DETAILED DESCRIPTION

[0024] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a motor hood with a ventilation structure through improvement. The technical solution of the utility model is:

[0026] like Figure 1-Figure 4As shown, a motor hood with a ventilation structure includes an air inlet hood 1 and a fixed hood 2. The air inlet hood 1 is provided with a plurality of conical holes 4. A filter assembly is arranged inside the air inlet hood 1. The filter assembly is used to filter larger dust in the air. The filter assembly includes a filter screen 8 attached to the bottom of the air inlet hood 1. The air inlet hood 1 and the filter screen 8 are detachably fixedly connected. When cleaning, the air inlet hood 1 is rotated, and the air inlet hood 1 and the filter screen 8 are rotated and clamped above the fixed hood 2. The dust on the air inlet hood 1 and the filter screen 8 can be cleaned, and the filter screen 8 can be disassembled and replaced when it is damaged. The conical holes 4 can form a narrow tube effect, so that the speed of the cold wind entering the device is increased to improve the cooling effect of the motor. It also includes;

[0027] Clamping components, such as Figure 4 The clamping assembly includes two groove plates 13 fixedly connected to one side of the bottom of the fixed cover 2. The grooves of the two groove plates 13 are slidably connected with clamping blocks 12. After the air inlet cover 1 is rotated to the specified position, the clamping blocks 12 move relatively on the groove plates 13 to clamp the parts so that the air inlet cover 1 is fixed at the specified position.

[0028] Furthermore, the air inlet hood 1 and the fixed hood 2 are both provided with a plurality of threaded holes 31 with matching apertures. The top of the air inlet hood 1 is rotatably connected with a bolt 3 that matches the threaded hole 31. Tightening the bolt 3 can make the air inlet hood 1 and the fixed hood 2 fit tightly and fixed. When the filter 8 needs to be disassembled, the bolt 3 is unscrewed and removed, and the filter 8 can be removed for replacement.

[0029] As a further solution of the utility model, a diamond column 5 is fixed on one side of the air inlet cover 1, one end of the diamond column 5 passes through the air inlet cover 1 and is rotatably connected to the fixed cover 2. The diamond column 5 is clamped and fixed, so that the air inlet cover 1 can be fixed to the specified position.

[0030] As a further solution of the present invention, a cam rod 11 is rotatably installed on one side of the bottom of the fixed cover 2, and a lever is fixedly installed on one side of the outer peripheral wall of the cam rod 11. The clamping block 12 is slidably connected to the guide rod 6 on both sides adjacent to the cam rod 11, and the other clamping block 12 is fixedly connected to the end of the guide rod 6, and the two guide rods 6 are fixedly connected to one end of the cam rod 11 together with a connecting plate 7, and the part of the guide rod 6 located between the two clamping blocks 12 is sleeved with a spring 61. When cleaning, after the air inlet cover 1 is rotated to the specified position, because the elastic force of the spring 61 is less than the relative thrust of the two clamping blocks 12, the rotating cam rod 11 can push the adjacent clamping blocks 12 and the connecting plate 7 to both sides, so that the two clamping blocks 12 move relative to each other, so that the clamping blocks 12 are fitted and clamped with the rhombus column 5. After cleaning, reverse the cam rod 11, the two clamping blocks 12 are only subjected to the elastic force of the spring 61, and the clamping blocks 12 move to both sides, so that the rhombus column 5 can rotate, which is convenient for the air inlet cover 1 to return to its original position.

[0031] Furthermore, V-shaped grooves adapted to the diamond-shaped column 5 are provided on opposite sides of the two clamping blocks 12 , and the adapted V-shaped grooves are used to improve the clamping effect of the two clamping blocks 12 on the diamond-shaped column 5 .

[0032] As a further solution of the utility model, an annular plate 9 is provided inside the fixed cover 2, and a plurality of reinforcing ribs 10 are fixedly connected between the annular plate 9 and the fixed cover 2. The provided reinforcing ribs 10 help to improve the stability of the device.

[0033] The specific working method is: tightening the bolts 3 can tightly install the air inlet cover 1 and the fixed cover 2, and the cold air is accelerated from the conical hole 4 and filtered through the filter 8 to enter the device. When cleaning, loosen the bolts 3 and rotate the air inlet cover 1 to the specified position, start the clamping assembly, and clamp the diamond column 5 to fix the air inlet cover 1 at the specified position, and then clean the air inlet cover 1 and the filter 8. Move the air inlet cover 1 away from the air inlet position of the device to avoid dust generated when cleaning the air inlet cover 1 from entering the device. When the filter 8 is damaged, the filter 8 can also be disassembled and replaced. After cleaning, release the clamping and rotate the air inlet cover 1 to move the air inlet cover 1 to its original position. After tightening the bolts 3, you can continue working.

[0034] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A motor hood with a ventilation structure, comprising an air inlet hood (1) and a fixed hood (2), wherein the air inlet hood (1) is provided with a plurality of conical holes (4), and a filter assembly is arranged in the air inlet hood (1), characterized in that: The filter assembly comprises a filter screen (8) attached to the bottom of the air inlet cover (1), the air inlet cover (1) and the filter screen (8) are detachably fixedly connected, and further comprises: The clamping assembly comprises two groove plates (13) fixedly connected to one side of the bottom of the fixed cover (2), and the grooves of the two groove plates (13) are both slidably connected with clamping blocks (12).

2. The motor hood with ventilation structure according to claim 1, characterized in that: The air inlet cover (1) and the fixed cover (2) are both provided with a plurality of threaded holes (31) with matching apertures, and the top of the air inlet cover (1) is rotatably connected with bolts (3) matching the threaded holes (31).

3. The motor hood with ventilation structure according to claim 1, characterized in that: A diamond-shaped column (5) is fixed to one side of the air inlet cover (1), and one end of the diamond-shaped column (5) penetrates the air inlet cover (1) and is rotatably connected to the fixed cover (2).

4. The motor hood with ventilation structure according to claim 1, characterized in that: A cam rod (11) is rotatably mounted on one side of the bottom of the fixed cover (2), a shifting rod is fixedly mounted on one side of the outer peripheral wall of the cam rod (11), the clamping block (12) is slidably connected to guide rods (6) on both sides adjacent to the cam rod (11), another clamping block (12) is fixedly connected to the end of the guide rod (6), the two ends of the two guide rods (6) close to the cam rod (11) are fixedly connected to a connecting plate (7), and a spring (61) is sleeved on the part of the guide rod (6) located between the two clamping blocks (12).

5. The motor hood with ventilation structure according to claim 4, characterized in that: The two clamping blocks (12) are each provided with a V-shaped groove matched with the rhombus column (5) on one opposite side.

6. The motor hood with ventilation structure according to claim 1, characterized in that: An annular plate (9) is arranged inside the fixed cover (2), and a plurality of reinforcing ribs (10) are fixedly connected between the annular plate (9) and the fixed cover (2).

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