Cooling fan with automatic oil injection function
By designing an automatic oil filling mechanism in the cooling fan, the problem of insufficient bearing lubrication is solved, continuous lubrication is achieved, the service life is extended and the efficiency is improved.
Patent Information
- Application Number
- CN202423017413.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing cooling fans lack the automatic oil filling function, which causes the bearings to lack lubrication and easily wear, affecting their service life and efficiency.
An automatic oil filling mechanism was designed, which includes an oil storage barrel, an oil delivery pipe and a motion rod. The dynamic supply of lubricating oil is triggered by the squeezing of the bearing balls, and the precise control of the lubricating oil is achieved by the combination of balls and springs.
Ensures continuous lubrication of bearings, avoids wear, extends cooling fan life, reduces maintenance costs, improves operating efficiency and reduces lubricant waste.
Smart Images
Figure CN223344305U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cooling fans, in particular to a cooling fan with an automatic oil filling function. Background Art
[0002] A cooling fan, also known as a radiator fan, is a cooling device widely used in computers, aerospace and other fields. Its working principle is through energy conversion, that is, using electrical energy to drive the fan blades to rotate, thereby accelerating air flow and achieving the effect of cooling and heat dissipation.
[0003] At present, most existing cooling fans do not have automatic oiling devices and require manual oiling maintenance on a regular basis. This method is not only cumbersome to operate, but also prone to manual negligence, such as forgetting the oiling time or the oiling interval is too long, resulting in lack of lubrication of the bearings. When the bearings operate without lubrication for a long time, the friction between the ball bearings and other components increases, accelerating bearing wear, and thus affecting the service life of the cooling fan. In view of this, we propose a cooling fan with automatic oiling function. Summary of the Invention
[0004] The main purpose of the utility model is to provide a cooling fan with an automatic oil filling function, which can solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned object, the utility model proposes a cooling fan with an automatic oil filling function, comprising a fan tube, a fan cover provided at the end of the fan tube, a motor provided inside the fan tube, a rotating shaft fixedly connected to the output end of the motor, a fan blade fixedly connected to the outer wall of the rotating shaft, the rotating shaft being connected to the motor housing via a bearing, an oil filling mechanism provided on the motor, and the oil filling mechanism comprising:
[0006] An oil storage barrel, the oil storage barrel is fixed to the outer wall of the motor through a bracket, and an oil filling port is opened on the oil storage barrel;
[0007] An oil delivery pipe, one end of which is fixedly connected to the oil outlet of the oil storage barrel, and the other end of which is fixedly connected to a cylinder, which passes through the motor housing and is fixedly connected to the motor housing;
[0008] The moving rod passes through the cylinder and is slidably connected to the cylinder. The moving rod is provided with an oil outlet hole. The bottom end of the moving rod is set as a sphere to reduce the friction between the moving rod and the ball.
[0009] Preferably, the inner wall of the cylinder is fixedly connected to a cross bar 1, the outer wall of the cross bar 1 is fixedly connected to a rod body 1, and the end of the rod body 1 is fixedly connected to a sphere 1.
[0010] Preferably, a partition is fixedly connected to the inner wall of the cylinder, and the partition is penetrated by the movement rod and is slidably connected to the movement rod.
[0011] Preferably, one end of a spring 1 is fixedly connected to the outer wall of the movement rod, and the other end of the spring 1 is fixedly connected to the partition.
[0012] Preferably, a second cross bar is fixedly connected to the inner wall of the movement rod, and the second cross bar is penetrated by the second rod body and is slidably connected to the second rod body.
[0013] Preferably, the second end of the rod body is fixedly connected with a second ball to improve the stability of the movement of the second ball, and the second ball is elastically connected to the inner wall of the movement rod through a second spring.
[0014] The utility model provides a cooling fan with automatic oil filling function. It has the following beneficial effects:
[0015] (1) The cooling fan with automatic oil filling function, when the fan is running, the ball of the bearing will dynamically squeeze the moving rod, thereby triggering the oil filling mechanism. This mechanism not only ensures that the bearing always receives an appropriate amount of lubricating oil during operation, but also avoids performance degradation and increased wear caused by untimely manual lubrication. Automatic and continuous lubrication not only improves the operating efficiency of the cooling fan, but also significantly extends its service life and reduces maintenance costs.
[0016] (2) The cooling fan with automatic oil filling function realizes precise control of the lubricating oil inside the moving rod through the combination of ball 2 and spring 2. When the inner cavity at the upper end of the moving rod is filled with lubricating oil, the pressure will force ball 2 to move downward, thereby allowing the lubricating oil to enter the inner cavity at the lower end and lubricate the bearing. Once the lubricating oil is released, ball 2 will quickly reset under the elastic force of spring 2 and re-seal the entrance of the inner cavity at the lower end, preventing excessive loss of lubricating oil. This design not only ensures that the bearing is fully lubricated, but also minimizes the waste of lubricating oil and improves resource utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;
[0020] Figure 3It is a schematic diagram of a partial three-dimensional cross-sectional structure of the utility model;
[0021] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the utility model cylinder;
[0022] Figure 5 Utility Model Figure 4 Schematic diagram of the structure of A in the figure.
[0023] Description of Figure Numbers:
[0024] 1. Air duct; 2. Air cover; 3. Motor; 4. Rotating shaft; 5. Fan blades; 6. Bearing; 7. Oil filling mechanism; 71. Oil storage barrel; 72. Oil filling port; 73. Oil pipe; 74. Cylinder; 75. Crossbar 1; 76. Rod 1; 77. Sphere 1; 78. Partition; 781. Moving rod; 782. Spring 1; 783. Crossbar 2; 784. Rod 2; 785. Sphere 2; 786. Spring 2; 787. Oil outlet.
[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0026] The following will clearly and completely describe the technical solutions in the utility model embodiments in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the utility model embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of utility model protection.
[0027] See also Figure 1-Figure 5 The utility model proposes a cooling fan with automatic oil filling function, including a wind tube 1, a wind cover 2 is provided at the end of the wind tube 1, a motor 3 is provided inside the wind tube 1, the output end of the motor 3 is fixedly connected to a rotating shaft 4, the outer wall of the rotating shaft 4 is fixedly connected to a fan blade 5, the rotating shaft 4 is connected to the motor 3 housing through a bearing 6, and an oil filling mechanism 7 is provided on the motor 3.
[0028] In the embodiment of the utility model, in order to automatically add lubricating oil to the bearing 6, specifically, the oil filling mechanism 7 includes an oil storage barrel 71, which is fixed to the outer wall of the motor 3 by a bracket. The oil storage barrel 71 is provided with an oil filling port 72, and one end of an oil delivery pipe 73 is fixedly connected to the oil outlet of the oil storage barrel 71. The other end of the oil delivery pipe 73 is fixedly connected to a cylinder 74, which passes through the housing of the motor 3 and is fixedly connected to the housing of the motor 3. A motion rod 781 passes through the cylinder 74 and is slidably connected to the cylinder 74. The motion rod 781 is provided with an oil outlet hole 787.
[0029] Furthermore, a crossbar 1 75 is fixedly connected to the inner wall of the cylinder 74, a rod 1 76 is fixedly connected to the outer wall of the crossbar 1 75, a ball 1 77 is fixedly connected to the end of the rod 1 76, a partition 78 is fixedly connected to the inner wall of the cylinder 74, the partition 78 is penetrated by the movement rod 781 and is slidably connected to the movement rod 781, one end of a spring 1 782 is fixedly connected to the outer wall of the movement rod 781, the other end of the spring 1 782 is fixedly connected to the partition 78, a crossbar 2 783 is fixedly connected to the inner wall of the movement rod 781, the crossbar 2 783 is penetrated by the rod 2 784 and is slidably connected to the rod 2 784, a ball 2 785 is fixedly connected to the end of the rod 2 784, and the ball 2 785 is elastically connected to the inner wall of the movement rod 781 via the spring 2 786;
[0030] In the utility model, when in use, first inject lubricating oil into the oil storage barrel 71 through the oil filling port 72. When the oil storage barrel 71 is filled, the lubricating oil inside the oil storage barrel 71 will be poured into the inner cavity of the cylinder 74 through the oil delivery pipe 73. When the fan blade 5 rotates, the ball in the bearing 6 will squeeze the movement rod 781, causing the movement rod 781 to move upward to the cylinder 74. At the same time, the spring 1 782 undergoes elastic deformation. When the movement rod 781 moves upward, under the action of the cross bar 1 75, the ball 1 77 and the movement rod 781 are in contact with each other. When the oil inlet of the cylinder 74 is disengaged, the lubricating oil in the inner cavity of the cylinder 74 will enter the interior of the moving rod 781 through the oil inlet. When the pressure on the moving rod 781 disappears, the moving rod 781 returns to its original position under the elastic force of the spring 1 782. During this process, the ball 1 77 will seal the oil inlet of the moving rod 781 again. Therefore, during the rotation of the fan blade 5, the moving rod 781 will continuously reciprocate up and down. During this process, the inner cavity at the upper end of the moving rod 781 will gradually be filled with lubricating oil. When the inner cavity of rod 781 is filled, the pressure of the lubricating oil in the upper inner cavity on ball 2 785 is greater than the supporting force of spring 2 786. At this time, ball 2 785 will move downward under the action of pressure. When ball 2 785 moves downward, the entrance of the inner cavity at the lower end of the moving rod 781 is opened. At this time, the lubricating oil in the inner cavity at the upper end of the moving rod 781 will enter the inner cavity at the lower end of the moving rod 781 through the entrance, and then the lubricating oil will enter the interior of the bearing 6 through the oil outlet 787, thereby lubricating the bearing 6 and improving the heat dissipation. The service life of the fan. At the same time, when the lubricating oil in the inner cavity of the upper end of the moving rod 781 enters the inner cavity of the lower end, the pressure of the lubricating oil in the inner cavity of the upper end of the moving rod 781 on the ball 2 785 is less than the elastic force of the spring 2 786. Then the ball 2 785 will return to its original position under the elastic force of the spring 2 786, and then re-close the inner cavity of the lower end of the moving rod 781. This design, through the design of the ball 2 785 and the spring 2 786, can make the moving rod 781 intermittently lubricate the bearing 6, thereby preventing the waste of lubricating oil.
[0031] The above description is merely a preferred embodiment of the utility model and does not limit the patent scope of the utility model. Any equivalent structural transformation made based on the contents of the utility model description and drawings, or direct / indirect application in other related technical fields, within the scope of the utility model's inventive concept, is included in the patent protection scope of the utility model.
Claims
1. A cooling fan with automatic oil filling function, comprising a fan tube (1), characterized in that: The end of the wind tube (1) is provided with a wind cover (2), the interior of the wind tube (1) is provided with a motor (3), the output end of the motor (3) is fixedly connected to a rotating shaft (4), the outer wall of the rotating shaft (4) is fixedly connected to a fan blade (5), the rotating shaft (4) is connected to the housing of the motor (3) through a bearing (6), and the motor (3) is provided with an oil injection mechanism (7), the oil injection mechanism (7) comprising: An oil storage barrel (71), the oil storage barrel (71) being fixed to the outer wall of the motor (3) via a bracket, and an oil filling port (72) being provided on the oil storage barrel (71); An oil delivery pipe (73), one end of the oil delivery pipe (73) is fixedly connected to the oil outlet of the oil storage barrel (71), and the other end of the oil delivery pipe (73) is fixedly connected to a cylinder (74), and the cylinder (74) passes through the motor (3) housing and is fixedly connected to the motor (3) housing; A motion rod (781) passes through the cylinder (74) and is slidably connected to the cylinder (74). The motion rod (781) is provided with an oil outlet hole (787).
2. The cooling fan with automatic oil filling function according to claim 1, characterized in that: The inner wall of the cylinder (74) is fixedly connected to a crossbar 1 (75), the outer wall of the crossbar 1 (75) is fixedly connected to a rod body 1 (76), and the end of the rod body 1 (76) is fixedly connected to a sphere 1 (77).
3. The cooling fan with automatic oil filling function according to claim 1, characterized in that: A partition (78) is fixedly connected to the inner wall of the cylinder (74), and the partition (78) is penetrated by the motion rod (781) and is slidably connected to the motion rod (781).
4. The cooling fan with automatic oil filling function according to claim 3, characterized in that: One end of a spring (782) is fixedly connected to the outer wall of the movement rod (781), and the other end of the spring (782) is fixedly connected to the partition (78).
5. The cooling fan with automatic oil filling function according to claim 1, characterized in that: The inner wall of the movement rod (781) is fixedly connected to a second crossbar (783), and the second crossbar (783) is penetrated by the second rod body (784) and is slidably connected to the second rod body (784).
6. The cooling fan with automatic oil filling function according to claim 5, characterized in that: The end of the second rod body (784) is fixedly connected to the second sphere (785), and the second sphere (785) is elastically connected to the inner wall of the movement rod (781) through the second spring (786).