Waterproof structure applied to fan motor in humid environment

Abstract

The utility model discloses a waterproof structure applied to a fan motor in a humid environment, which comprises a motor body, one end of the motor body is provided with a substrate, one end of the substrate is provided with a bearing support, the middle of the bearing support is provided with a bearing, and the bearing is sleeved on the periphery of a rotating shaft in the middle of the motor body. One side of the motor body is coated with a second shell, an oil injection pipe is arranged at the upper end of the second shell, one end of the second shell is connected with a first shell in a sealed mode, oil suction blocks are arranged on the periphery of the inner wall of the first shell, oil suction cavities are formed in the upper end and the lower end of each oil suction block, and a buffer cavity is formed in one side of each oil suction cavity. The surface of the base plate and the surface of the bearing support are wrapped with the oil absorption blocks, the oil absorption blocks are made of the moisture absorption fibers, the oil absorption blocks can absorb lubricating oil in the storage box, lubricating liquid in the oil absorption blocks has the lubricating effect on the base plate and the bearing support, and a protective oil film is formed to isolate water vapor.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproofing for fan motors, and specifically to a waterproof structure applied to fan motors in humid environments. Background Technique

[0002] A fan motor is a device that converts electrical energy into mechanical energy and is mainly used in fan equipment. A fan motor usually consists of an electromagnet winding or a distributed stator winding and a rotating armature or rotor, and works by using the phenomenon that a current-carrying coil is forced to rotate in a magnetic field. Among them, the existing external components of a fan motor are all composed of bearings, a substrate, and a motor.

[0003] Among the structures of existing fan motors, the substrate, bearing bracket, and bearings are all exposed to the outside and in contact with air. When the external environment is humid, moisture may enter the motor interior along the gaps between the substrate and the bearings, which may cause short circuits and rusting and aging of the electrical components inside the motor, and ultimately may lead to the overall fan motor being unable to operate normally in a humid environment. Therefore, it does not meet the existing requirements, and for this reason, we propose a waterproof structure applied to fan motors in humid environments. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a waterproof structure applied to fan motors in humid environments, so as to solve the problems raised in the above background technique that in the structure of the fan motor, the substrate, bearing bracket, and bearings are all exposed to the outside and in contact with air. When the external environment is humid, moisture may enter the motor interior along the gaps between the substrate and the bearings, which may cause short circuits and rusting and aging of the electrical components inside the motor, and ultimately may lead to the overall fan motor being unable to operate normally in a humid environment.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A waterproof structure applied to fan motors in humid environments, including a motor body. One end of the motor body is provided with a substrate, one end of the substrate is provided with a bearing bracket, a bearing is provided in the middle of the bearing bracket, the bearing is sleeved around the rotating shaft in the middle of the motor body, one side of the motor body is covered with a second outer shell, an oil injection pipe is provided at the upper end of the second outer shell, one end of the second outer shell is hermetically connected to a first outer shell, oil absorption blocks are provided around the inner wall of the first outer shell, oil absorption cavities are provided at the upper and lower ends of the oil absorption blocks, and a buffer cavity is provided on one side of the oil absorption cavity.

[0006] Preferably, a storage box is provided inside the second outer shell, the upper end of the storage box is connected in communication with the oil injection pipe, and connecting pipes are fixedly connected to the upper and lower ends on one side of the storage box.

[0007] Preferably, an insertion pipe is provided on one side of the buffer cavity. A second connecting frame is fixedly connected to the middle of the interior of the insertion pipe, and a top column is fixedly connected to one end of the second connecting frame.

[0008] Preferably, a through hole is provided on the other side of the buffer cavity. The through hole is connected to the oil absorption block in a penetrating manner, and the oil absorption block is made of moisture-absorbing fiber.

[0009] Preferably, a first connecting frame is fixedly connected to one side of the interior of the connecting pipe. One end of the first connecting frame is connected to a spring, one end of the spring is connected to a plug, and a separating ring is provided on the other side of the interior of the connecting pipe.

[0010] Preferably, one end of the connecting pipe is connected to the storage box in a penetrating manner, and the other end of the connecting pipe is in plug-in fit with the insertion pipe. The top column penetrates through the separating ring and presses against the surface of the plug.

[0011] Preferably, the storage box is filled with lubricating oil, and the oil absorption block covers the surfaces of the substrate and the bearing bracket.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the storage box is filled with lubricating oil. The upper end of the storage box is connected to the injection pipe in a penetrating manner. Both the upper and lower ends on one side of the storage box are fixedly connected with connecting pipes. The oil absorption block covers the surfaces of the substrate and the bearing bracket, and the material of the oil absorption block is made of moisture-absorbing fiber. Then, the oil absorption block can absorb the lubricating oil inside the storage box, and the lubricating liquid in the oil absorption block plays a lubricating role for the substrate and the bearing bracket, and forms a protective oil film to isolate water vapor.

[0014] 2. In the present utility model, when the first outer shell and the second outer shell are separated, the insertion pipe and the connecting pipe are separated, and the top column inside the insertion pipe no longer presses against the plug. The spring on one side of the plug is no longer pressed either. At this time, the stretching elastic force of the spring pushes the plug towards the separating ring, so that one end face of the plug fits with the middle of the separating ring. Then, the plug blocks the middle of the separating ring, and the lubricating liquid inside the storage box no longer flows out through the connecting pipe. Therefore, after the first outer shell and the second outer shell are separated, the waste caused by the outflow of the lubricating liquid inside the storage box is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the whole of the present utility model;

[0016] Figure 2 is a three-dimensional structural schematic diagram of the whole of the present utility model after separation;

[0017] Figure 3 is a front sectional view of the whole of the present utility model;

[0018] Figure 4 For the present utility model Figure 3 is a sectional enlarged view of the A position in the present utility model.

[0019] In the figure: 1. First outer shell; 2. Second outer shell; 3. Oil injection pipe; 4. Substrate; 5. Motor body; 6. Bearing bracket; 7. Storage box; 8. Connecting pipe; 9. Oil absorption block; 10. Buffer cavity; 11. Spring; 12. First connecting frame; 13. Isolation ring; 14. Thrust post; 15. Second connecting frame; 16. Insertion connecting pipe; 17. Oil absorption cavity; 18. Plug block; 19. Through hole; 20. Bearing. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] Please refer to Figures 1 to 4 , an embodiment provided by the present utility model: a waterproof structure applied to a fan motor in a humid environment, including a motor body 5. One end of the motor body 5 is provided with a substrate 4. One end of the substrate 4 is provided with a bearing bracket 6. A bearing 20 is provided in the middle of the bearing bracket 6. The bearing 20 is sleeved around the rotating shaft in the middle of the motor body 5. One side of the motor body 5 is covered with a second outer shell 2. The upper end of the second outer shell 2 is provided with an oil injection pipe 3. One end of the second outer shell 2 is hermetically connected to a first outer shell 1. Absorbent blocks 9 are provided around the inner wall of the first outer shell 1. Oil absorption cavities 17 are provided at both the upper and lower ends of the oil absorption block 9. A buffer cavity 10 is provided on one side of the oil absorption cavity 17.

[0022] A storage box 7 is provided inside the second outer shell 2. The user fills the storage box 7 with lubricating oil through the oil injection pipe 3, so that the storage box 7 is filled with lubricating oil. The upper end of the storage box 7 is connected to the oil injection pipe 3 in a through manner. Connecting pipes 8 are fixedly connected to both the upper and lower ends on one side of the storage box 7. The oil absorption block 9 covers the surfaces of the substrate 4 and the bearing bracket 6, and the material of the oil absorption block 9 is made of moisture-absorbing fiber. Then, the oil absorption block 9 can absorb the lubricating oil inside the storage box 7. The lubricating liquid in the oil absorption block 9 plays a lubricating role for the substrate 4 and the bearing bracket 6 and forms a protective oil film to isolate water vapor;

[0023] On one side of the buffer chamber 10, there is an insertion pipe 16. In the middle of the interior of the insertion pipe 16, a second connection frame 15 is fixedly connected. One end of the second connection frame 15 is fixedly connected to a top column 14. On the other side of the buffer chamber 10, there is a through hole 19. The through hole 19 is in through connection with the oil absorption block 9. Among them, the buffer chamber 10 plays a buffering role. The lubricating fluid inside the storage box 7 flows into the buffer chamber 10 through the connecting pipe 8. Then, the lubricating fluid in the buffer chamber 10 flows into the oil absorption chamber 17 through the through hole 19, so that the oil absorption block 9 can absorb the lubricating fluid inside the oil absorption chamber 17.

[0024] On one side inside the connecting pipe 8, a first connection frame 12 is fixedly connected. One end of the first connection frame 12 is connected to a spring 11. One end of the spring 11 is connected to a plug block 18. On the other side inside the connecting pipe 8, there is a separating ring 13. One end of the connecting pipe 8 is in through connection with the storage box 7. The other end of the connecting pipe 8 is in plug-in fit with the insertion pipe 16. The top column 14 penetrates through the separating ring 13 and presses on the surface of the plug block 18, which causes the plug block 18 to move horizontally in the direction towards the first connection frame 12. The plug block 18 presses on the stretching elastic force of the first connection frame 12. Then, the surface on one side of the plug block 18 is separated from the separating ring 13. Then, the lubricating fluid inside the storage box 7 flows into the insertion pipe 16 through the first connection frame 12, the separating ring 13, and the insertion pipe 16.

[0025] During use, the second outer shell 2 is covered on the surface of the motor body 5, and the first outer shell 1 is covered on the surface of the substrate 4 and the bearing bracket 6. Among them, the oil absorption block 9 inside the first outer shell 1 completely wraps the surface of the substrate 4 and the bearing bracket 6. The insertion pipes 16 on one side of the buffer chambers 10 at the upper and lower ends of the oil absorption block 9 are inserted into one end of the connecting pipe 8. The top column 14 fixedly connected to one side of the second connection frame 15 inside the insertion pipe 16 pushes and presses the plug block 18. The stretching elastic force on one side of the plug block 18 is also pressed. This causes the plug block 18 to be separated from the separating ring 13. Then, the lubricating fluid inside the storage box 7 can flow into the buffer chamber 10 through the connecting pipe 8 and the insertion pipe 16. The lubricating fluid then flows into the oil absorption chamber 17 through the through hole 19. This enables the oil absorption block 9 to absorb the lubricating fluid inside the oil absorption chamber 17. The lubricating fluid in the oil absorption block 9 lubricates the substrate 4 and the bearing bracket 6 and forms a protective oil film to isolate water vapor.

[0026] After the first outer shell 1 and the second outer shell 2 are separated, the insertion pipe 16 and the connecting pipe 8 are separated. The ejector pin 14 inside the insertion pipe 16 no longer presses on the plug block 18, and the spring 11 on one side of the plug block 18 is no longer pressed either. At this time, the stretching elastic force of the spring 11 pushes the plug block 18 towards the isolation ring 13, making one end face of the plug block 18 fit with the middle of the isolation ring 13. Furthermore, the plug block 18 blocks the middle of the isolation ring 13, so that the lubricating fluid inside the storage box 7 no longer flows out through the connecting pipe 8. Therefore, after the first outer shell 1 and the second outer shell 2 are separated, the waste caused by the outflow of the lubricating fluid inside the storage box 7 is avoided.

[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A waterproof structure for a fan motor used in a humid environment, comprising a motor body (5), a base plate (4) being provided at one end of the motor body (5), a bearing bracket (6) being provided at one end of the base plate (4), a bearing (20) being provided in the middle of the bearing bracket (6), and the bearing (20) being sleeved around a rotating shaft in the middle of the motor body (5), characterized in that: One side of the motor body (5) is covered with a second housing (2), an upper end of the second housing (2) is provided with an oil filling pipe (3), one end of the second housing (2) is sealedly connected to the first housing (1), an oil absorption block (9) is provided around the inner wall of the first housing (1), an oil absorption cavity (17) is provided at both the upper and lower ends of the oil absorption block (9), and a buffer cavity (10) is provided on one side of the oil absorption cavity (17).

2. The waterproof structure of a fan motor used in a humid environment according to claim 1, characterized in that: A storage box (7) is provided inside the second housing (2); the upper end of the storage box (7) is connected to the oil filling pipe (3); and the upper and lower ends of one side of the storage box (7) are fixedly connected to connecting pipes (8).

3. The waterproof structure of a fan motor used in a humid environment according to claim 2, characterized in that: A plug-in tube (16) is provided on one side of the buffer chamber (10), a second connecting frame (15) is fixedly connected to the middle of the plug-in tube (16), and a top column (14) is fixedly connected to one end of the second connecting frame (15).

4. The waterproof structure of a fan motor used in a humid environment according to claim 3, characterized in that: A through hole (19) is provided on the other side of the buffer cavity (10), and the through hole (19) is connected to the oil absorption block (9), and the oil absorption block (9) is made of moisture-absorbing fibers.

5. The waterproof structure of a fan motor used in a humid environment according to claim 4, characterized in that: A first connecting frame (12) is fixedly connected to one side of the connecting tube (8), one end of the first connecting frame (12) is connected to a spring (11), one end of the spring (11) is connected to a plug (18), and an isolating ring (13) is provided on the other side of the connecting tube (8).

6. The waterproof structure of a fan motor used in a humid environment according to claim 5, characterized in that: One end of the connecting tube (8) is connected to the storage box (7), the other end of the connecting tube (8) is plugged into the plug tube (16), and the top column (14) passes through the isolation ring (13) and is pressed against the surface of the plug block (18).

7. The waterproof structure of a fan motor used in a humid environment according to claim 6, characterized in that: The storage box (7) is filled with lubricating oil, and the oil absorption block (9) is coated on the surface of the base plate (4) and the bearing bracket (6).

Images