Novel reinforced fluid structure end cover

Abstract

The utility model relates to a novel reinforced fluid structure end cover, relates to the field of dry-type motors, and aims to solve the problems that in the exhaust process, airflow passes through a gap, the area is small, the wind speed is high, resistance is large when the airflow passes through the gap, large sound, sharp sound or wind vibration is easily generated, and the narrow tube effect is caused. The shell comprises a shell inner ring and a shell outer ring, a connecting plate is arranged between the shell inner ring and the shell outer ring, the two ends of the connecting plate are connected with the outer side wall of the shell inner ring and the inner side wall of the shell outer ring respectively, and the shell inner ring is further connected with a shaft ring; a plurality of reinforcing ribs are arranged between the inner ring of the machine shell and the shaft ring, and the reinforcing ribs are obliquely arranged in the circumferential direction so that the contact area between the reinforcing ribs and air can be increased. The air conditioner has the effect of reducing noise generated when air flow is exhausted from the machine shell.

Description

Technical Field

[0001] The present application relates to the field of dry-type motors, and in particular to a novel end cover with a reinforced fluid structure. Background Art

[0002] Dry waterproof motors generally have the heat dissipation effect of ordinary dry motors and the waterproof effect of ordinary wet motors. The motor casing uses a mechanical structure to achieve sealing to protect the driving structure inside the casing. When the motor is running, in order to discharge water vapor in time, a moving impeller and a fixed impeller are generally set at one end of the motor. The moving impeller rotates synchronously with the rotor. During the rotation of the moving impeller, negative pressure is formed at the end of the moving impeller away from the casing, and positive pressure is formed at the end of the moving impeller close to the casing. The negative pressure sucks water vapor and dust into the moving impeller, and then after being thrown out by the moving impeller, it is discharged from the gap of the casing after being guided by the fixed impeller.

[0003] However, during the discharge process, the air flows through the gaps, and due to the small area and high wind speed, it encounters great resistance when passing through, and it is easy to make a loud noise, sharp sound or cause wind vibration, resulting in a "narrow tube effect", so there is room for improvement. Utility Model Content

[0004] In order to reduce the noise when the airflow is discharged from the casing, the present application provides a new type of end cover with enhanced fluid structure.

[0005] The present application provides a novel enhanced fluid structure end cover adopts the following technical solution:

[0006] A novel reinforced fluid structure end cover comprises a casing inner ring and a casing outer ring, a connecting plate is arranged between the casing inner ring and the casing outer ring, two ends of the connecting plate are respectively connected to the outer side wall of the casing inner ring and the inner side wall of the casing outer ring, and the casing inner ring is also connected to an axle ring; a plurality of reinforcing ribs are arranged between the casing inner ring and the axle ring, and the plurality of reinforcing ribs are all arranged obliquely along the circumferential direction to increase the contact area with the air.

[0007] By adopting the above technical solution, when the dry motor is in operation, the impeller rotates and forms a negative pressure on the side away from the end cover. The airflow is sucked into the impeller under the action of the negative pressure, and discharged through the periphery of the impeller, and finally discharged into the air through the gap of the end cover through the guidance of the fixed impeller; the reinforcing rib plays a role in improving the "narrow tube effect" caused by the conventional reinforcing rib structure, reducing noise and vibration, and making the motor sound good; the fluid reinforcing rib design increases the structural contact surface and strengthens the structural strength of the parts. At the same time, the reinforcing rib adopts a fluid design, which makes the air outlet smoother, and more wind is blown to the heating element coil through the fluid design trajectory, reducing the temperature rise of the coil, reducing heat loss, and improving the efficiency of the motor.

[0008] Optionally, one end of the reinforcing rib is arranged as an inclined arc surface, and the inclined arc surface is inclined from the direction of the shaft ring toward the inner ring of the casing toward the other end of the reinforcing rib.

[0009] By adopting the above technical solution, the reinforcing ribs are arranged at an angle so that the airflow can be discharged smoothly; at the same time, the contact surface with the airflow is increased and the structure is strengthened; at the same time, the air outlet is made smoother, the loss is reduced, and the motor efficiency is improved.

[0010] Optionally, guide surfaces are provided at both ends of the reinforcing rib, and the guide surfaces are also provided on inclined arc surfaces.

[0011] Optionally, a reinforcing arc block is provided at one end of the reinforcing rib away from the inclined arc surface, one side of the reinforcing arc block is connected to the end of the reinforcing rib, and the other side is connected to the inner circle of the casing.

[0012] By adopting the above technical solution, the arrangement of the reinforced arc block further improves the strength of the end cover.

[0013] Optionally, a reinforcement frame is arranged between the reinforcement rib and the shaft ring, and the reinforcement frame is arranged at intervals on a plurality of reinforcement ribs.

[0014] By adopting the above technical solution, the provision of the reinforcement frame further improves the strength of the end cover.

[0015] Optionally, one end surface of the reinforcing rib is flush with one end surface of the reinforcement frame.

[0016] Optionally, the plurality of connecting plates are uniformly arranged along the circumferential direction, each of the connecting plates is inclined, and the inclination directions of the plurality of connecting plates are consistent.

[0017] By adopting the above technical solution, the inclinations of the reinforcing ribs and the connecting plate are arranged in opposite directions so that the airflow can be discharged smoothly; at the same time, the contact surface with the airflow is increased and the structure is strengthened; at the same time, the air outlet is made smoother, the loss is reduced, and the motor efficiency is improved.

[0018] Optionally, the plate surface of the connecting plate is arc-shaped and concave, and the concave directions of several connecting plates are consistent.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. When the dry motor is in operation, the impeller rotates and forms a negative pressure on the side away from the end cover. The airflow is sucked into the impeller under the action of the negative pressure, and is discharged through the periphery of the impeller. It is finally discharged into the air through the gap of the end cover through the guidance of the fixed impeller. The reinforcing rib plays a role in improving the "narrow tube effect" caused by the conventional reinforcing rib structure, reducing noise and vibration, and making the motor sound good. The fluid reinforcing rib design increases the structural contact surface and strengthens the structural strength of the parts. At the same time, the reinforcing rib adopts a fluid design, which makes the air outlet smoother, and more wind is blown onto the heating element coil through the fluid design trajectory, reducing the temperature rise of the coil, reducing heat loss, and improving the efficiency of the motor.

[0021] 2. The setting of the reinforced arc block further improves the strength of the end cover;

[0022] 3. The inclination of the reinforcing ribs and the connecting plate are set in opposite directions to allow the airflow to be discharged smoothly; at the same time, the contact surface with the airflow is increased and the structure is strengthened; at the same time, the air outlet is smoother, the loss is reduced, and the motor efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the new enhanced fluid structure end cover in the implementation mode of the present application.

[0024] Figure 2 It is a schematic diagram of the airflow direction of the motor using the end cover in the working state in the embodiment of the present application.

[0025] Figure 3 It is a schematic diagram used to illustrate the connection relationship between the reinforcement frame and the reinforcing ribs in the implementation manner of the present application.

[0026] Explanation of the reference numerals: 1. Inner ring of casing; 2. Outer ring of casing; 3. Connecting plate; 4. Shaft ring; 5. Reinforcing rib; 51. Inclined arc surface; 52. Guide surface; 53. Reinforced arc block; 54. Reinforcement frame. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 This application is described in further detail.

[0028] The embodiment of the present application discloses a novel end cover for strengthening fluid structure. Figure 1The new enhanced fluid structure end cover includes a casing outer ring 2 and a casing inner ring 1, and a connecting plate 3 is arranged between the casing outer ring 2 and the casing inner ring 1, and the two ends of the connecting plate 3 are respectively integrally formed on the outer peripheral wall of the casing inner ring 1 and the inner peripheral wall of the casing outer ring 2. A plurality of connecting plates 3 are arranged between the casing inner ring 1 and the casing outer ring 2, and the plurality of connecting plates 3 are evenly arranged along the circumference of the casing outer ring 2. The casing inner ring 1 is also integrally formed with a shaft ring 4. When in use, the structural end cover is installed on the motor, and at this time, one end of the rotor passes through the shaft ring 4. When the dry motor is in use, the airflow is discharged from the gap between the casing inner ring 1 and the casing outer ring 2, and the gap between the casing inner ring 1 and the shaft ring 4.

[0029] Several connecting plates 3 are evenly arranged along the circumferential direction, each connecting plate 3 is inclined, and the inclined directions of several connecting plates 3 are consistent; the plate surface of the connecting plate 3 is arc-shaped and concave, and the concave directions of several connecting plates 3 are consistent, so as to guide the discharge of airflow.

[0030] Reference Figure 1 and Figure 2 , a number of reinforcing ribs 5 are arranged between the inner ring 1 of the casing and the shaft ring 4, and the several reinforcing ribs 5 are arranged obliquely along the circumferential direction to increase the contact area with the air. When the airflow passes through between the inner ring 1 of the casing and the shaft ring 4, it contacts the surface of the inclined reinforcing rib 5. Since the reinforcing rib 5 is arranged obliquely, it will guide the airflow. The reinforcing rib 5 plays a fluid design to improve the "narrow tube effect" caused by the conventional reinforcing rib 5 structure, reduce noise and vibration, and make the motor sound good; the fluid reinforcing rib 5 design increases the structural contact surface and strengthens the structural strength of the parts. At the same time, the reinforcing rib 5 adopts a fluid design, which makes the air outlet smoother, and more wind is blown onto the heating element coil through the fluid design trajectory, reducing the temperature rise of the coil, reducing heat loss, and improving the efficiency of the motor.

[0031] Reference Figure 1 and Figure 3 The two sides of the reinforcing rib 5 are respectively connected to the inner ring 1 and the outer ring 2 of the casing, and the two ends of the reinforcing rib 5 are in contact with the air. One end of the reinforcing rib 5 is set as an inclined arc surface 51, and the inclined arc surface 51 is inclined from the shaft ring 4 to the direction of the inner ring 1 of the casing toward the other end of the reinforcing rib 5; both ends of the reinforcing rib 5 are provided with guide surfaces 52, and the guide surfaces 52 are also set on the inclined arc surface 51.

[0032] A reinforcing arc block 53 is provided at one end of the reinforcing rib 5 away from the inclined arc surface 51 . One side of the reinforcing arc block 53 is integrally formed with the end of the reinforcing rib 5 , and the other side is integrally formed with the inner ring 1 of the casing.

[0033] A reinforcing frame 54 is integrally formed between the reinforcing rib 5 and the shaft ring 4 . The reinforcing frame 54 is arranged on a plurality of reinforcing ribs 5 at intervals. One end surface of the reinforcing rib 5 is flush with one end surface of the reinforcing frame 54 .

[0034] All the above structures are integrally formed by injection molding.

[0035] The implementation principle of a new type of reinforced fluid structure end cover in the embodiment of the present application is as follows: when the dry motor is in operation, the impeller rotates and forms a negative pressure on the side away from the end cover. The airflow is sucked into the impeller under the action of the negative pressure, and is discharged through the periphery of the impeller, and is finally discharged into the air through the gap of the end cover through the guidance of the fixed impeller; the reinforcing rib 5 plays a role in improving the "narrow tube effect" caused by the conventional reinforcing rib 5 structure, reducing noise and vibration, and making the motor sound good; the fluid reinforcing rib 5 design increases the structural contact surface and strengthens the structural strength of the parts. At the same time, the reinforcing rib 5 adopts a fluid design, which makes the air outlet smoother, and more wind is blown onto the heating element coil through the fluid design trajectory, reducing the temperature rise of the coil, reducing heat loss, and improving the efficiency of the motor.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A new type of enhanced fluid structure end cover, characterized in that: The invention comprises a casing inner ring (1) and a casing outer ring (2), wherein a connecting plate (3) is arranged between the casing inner ring (1) and the casing outer ring (2), and the two ends of the connecting plate (3) are respectively connected to the outer wall of the casing inner ring (1) and the inner wall of the casing outer ring (2), and the casing inner ring (1) is also connected to a shaft ring (4); a plurality of reinforcing ribs (5) are arranged between the casing inner ring (1) and the shaft ring (4), and the plurality of reinforcing ribs (5) are all arranged to be inclined along the circumferential direction so as to increase the contact area with the air.

2. A novel enhanced fluid structure end cover according to claim 1, characterized in that: One end of the reinforcing rib (5) is arranged as an inclined arc surface (51), and the inclined arc surface (51) is arranged to be inclined from the direction of the shaft ring (4) toward the inner ring (1) of the casing toward the other end of the reinforcing rib (5).

3. A novel enhanced fluid structure end cover according to claim 2, characterized in that: Both ends of the reinforcing rib (5) are provided with guide surfaces (52), and the guide surfaces (52) are also arranged on the inclined arc surface (51).

4. A novel enhanced fluid structure end cover according to claim 2, characterized in that: A reinforcing arc block (53) is provided at one end of the reinforcing rib (5) away from the inclined arc surface (51); one side of the reinforcing arc block (53) is connected to the end of the reinforcing rib (5) and the other side is connected to the inner ring (1) of the casing.

5. The novel enhanced fluid structure end cover according to claim 1 is characterized in that: A reinforcement frame (54) is arranged between the reinforcement rib (5) and the shaft ring (4), and the reinforcement frame (54) is arranged at intervals on a plurality of reinforcement ribs (5).

6. A novel enhanced fluid structure end cover according to claim 5, characterized in that: One end surface of the reinforcing rib (5) is flush with one end surface of the reinforcing frame (54).

7. A novel enhanced fluid structure end cover according to claim 1, characterized in that: The plurality of connecting plates (3) are evenly arranged along the circumferential direction, each connecting plate (3) is arranged obliquely, and the inclination directions of the plurality of connecting plates (3) are consistent.

8. A novel enhanced fluid structure end cover according to claim 7, characterized in that: The plate surface of the connecting plate (3) is arc-shaped and concave, and the concave directions of a plurality of connecting plates (3) are consistent.

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