Cooling fan with side suction type flow channel

Abstract

The utility model relates to the technical field of fans, in particular to a cooling fan with a side suction type flow channel, which comprises a base, a side suction type flow channel, a side suction type flow channel and a side suction type flow channel, the rotor is rotationally arranged in the accommodating cavity and is provided with an axis; the stator is fixedly arranged in the accommodating cavity and is coaxial with the rotor; the stator is provided with a shaft tube part corresponding to the axis, a first bearing is arranged in the shaft tube part, and the axis is sleeved with the first bearing; the base is provided with at least one side suction type flow channel, and the side suction type flow channel forms an air inlet in the surface, facing the air inlet side, of the base and forms an air outlet in the cavity wall of the containing cavity. An included angle is formed between the extending direction of the axis of the air inlet and the extending direction of the axis of the air outlet. Through the arrangement of the side suction type flow channel, the air inflow in unit time is increased, the performance and efficiency of the fan are improved, more air flows more effectively take away heat, and the heat dissipation effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, concretely relates to a heat dissipation fan with side suction type runner. BACKGROUND

[0002] Axial flow heat dissipation fan is a kind of common heat dissipation equipment, it is driven by motor, makes blade high-speed rotation, to push air flow along the axis direction, reaches the effect of ventilation and heat dissipation.

[0003] The existing axial flow heat dissipation fan often has deficiency in performance, it is difficult to meet the increasing heat dissipation demand. In order to improve fan performance, the industry generally adopts the design such as replacing higher efficiency motor, but these methods face some problems in practical application, for example, replacing higher efficiency motor, as follows:

[0004] 1, the manufacturing cost of high-efficiency motor is usually higher, which leads to the rise of overall cost after replacing motor.

[0005] 2, although high-efficiency motor has superior performance, but its maintenance requirement also correspondingly increases, and it needs more professional technical personnel to maintain and maintain.

[0006] Therefore, how to solve the deficiency of the above-mentioned prior art after adopting corresponding measures to improve fan performance becomes the subject to be researched and solved by the utility model. CONTENT OF UTILITY MODEL

[0007] The utility model aims at providing a heat dissipation fan with side suction type runner.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0009] A heat dissipation fan with side suction type runner, comprising:

[0010] Base, as the component of providing support and being provided with accommodating cavity;

[0011] Rotor, rotationally arranged in the accommodating cavity and having shaft center;

[0012] Stator, fixedly arranged in the accommodating cavity and coaxially arranged with the rotor;The stator has the shaft pipe portion corresponding to the shaft center, the first bearing is arranged in the shaft pipe portion, and the first bearing is sleeved on the shaft center;

[0013] Wherein, at least one side suction type runner is arranged on the base, the side suction type runner forms air inlet on the surface of the base towards the air inlet side and forms air outlet on the cavity wall of the accommodating cavity;The extension direction of the axis of the air inlet and the extension direction of the axis of the air outlet have an included angle.

[0014] In the above scheme, when the fan is powered on, the electromagnetic field generated by the stator magnetic pole interacts with the permanent magnet ring in the rotor to push the rotor to rotate. In this process, the shaft tube supports the shaft center of the rotor, and the bearing rolls in the shaft tube to reduce friction and wear.

[0015] When the fan rotates, a pressure difference is generated, which causes external air to enter the containing cavity, and then generates airflow. By arranging the side suction type flow channel, the area and distribution range of the upper inlet of the fan are expanded, which has the following effects: on the one hand, the air intake per unit time is increased, thereby improving the fan air volume, and the performance and efficiency of the fan are improved; on the other hand, more air flow helps to effectively carry away heat and improve the heat dissipation effect; on the other hand, compared with other methods for improving the performance of the fan, such as replacing a more efficient motor, the arrangement in the application has lower cost and is easier to operate, and does not require more professional technicians for maintenance and maintenance.

[0016] It should be noted that the arrangement of the side suction type flow channel expands the area and distribution range of the upper inlet of the fan without adjusting the shape and size of the base.

[0017] The side suction type flow channel forms an inlet on the surface of the base facing the air inlet side and forms an outlet on the wall of the containing cavity. The extension direction of the axis of the inlet has an included angle with the extension direction of the axis of the outlet. In this way, the inlet of the side suction type flow channel can be directly aligned with the air inlet side to improve the air inlet effect. At the same time, the outlet of the side suction type flow channel can be directly aligned with the side of the fan rotor (such as the middle part of the side), so that the airflow sucked in through the inlet of the side suction type flow channel is sent into the containing cavity along the radial direction of the rotor, achieving the effect of wind pressure superposition on the basis of the original outlet air volume of the fan rotor.

[0018] In a further technical solution, the side suction type flow channels are arranged at the corner regions on the base.

[0019] An appropriate increase in the number of side suction type flow channels helps to improve the air intake, so that the above-mentioned effects of improving the performance of the fan are further improved.

[0020] To disperse the side suction type flow channels and avoid mutual interference, the side suction type flow channels are arranged at the corner regions on the base.

[0021] In a further technical solution, the corner regions on the base and the side suction type flow channels are both arranged as four.

[0022] Optionally, the base is a square base or approximately square, at this time, the corner regions have four, and correspondingly, the side suction type flow channels are arranged as four. When it is still necessary to be arranged at the above-mentioned middle part, the side suction type flow channels are arranged as eight.

[0023] Further technical solutions also include an elastic member, one end of the elastic member acting on the first bearing, and the other end of the elastic member acting on the shaft tube.

[0024] The elastic member can provide appropriate pre-tightening force for the bearing, which helps to ensure that the bearing maintains a stable running state in the shaft tube, reducing vibration and noise caused by looseness or excessive gap.

[0025] The elastic member can also absorb and buffer the vibration and impact during the operation of the fan. When the fan rotates at high speed, it will generate a certain vibration and impact force. The presence of the elastic member can effectively absorb these vibrations and impacts, protecting other components of the fan from damage, thereby improving the stability and durability of the fan.

[0026] Further technical solutions also include a gasket arranged between the first bearing and the elastic member, and the elastic member acts on the first bearing through the gasket.

[0027] The gasket is arranged between the first bearing and the elastic member, which can provide additional support for the bearing and enhance the stability of the fan structure.

[0028] By reasonably designing the thickness and material of the gasket, the pre-tightening force of the bearing can be adjusted to ensure the smoothness of the fan during operation.

[0029] The gasket has a certain elasticity and can absorb the impact and vibration between the first bearing and the elastic member, reducing noise and wear.

[0030] During the operation of the fan, the gasket can reduce the radial and axial runout of the bearing, improving the running accuracy of the fan.

[0031] Further technical solutions, along the length extension direction of the shaft tube, the side surface of the elastic member away from the gasket is attached to the shaft tube.

[0032] The elastic member is installed in the shaft tube. Here, the whole elastic member is described. The symmetric ends of the elastic member contact the gasket and the shaft tube respectively, so that the elastic member is fixed in the shaft tube.

[0033] Further technical solutions also include a second bearing sleeved on the shaft.

[0034] Through the arrangement of the second bearing, on the one hand, the load of the first bearing can be shared; on the other hand, in the case of high-speed operation, a single bearing may gradually fail due to friction and wear. The arrangement of two bearings can reduce the friction and wear of each bearing, prolonging the service life; on the other hand, the arrangement of the second bearing can improve the running stability of the shaft, reducing vibration and noise.

[0035] Further technical solutions also include a clasp ring sleeved on the shaft core, and a groove is arranged on the shaft core corresponding to the clasp ring.

[0036] Along the length direction of the shaft pipe part, the two side surfaces of the second bearing respectively abut against the clasp ring and the shaft pipe part.

[0037] The clasp ring cooperates with the shaft pipe part to fix the second bearing, preventing it from moving or falling off in the axial direction of the shaft core, and ensuring the normal operation and stability of the second bearing.

[0038] During the operation of the second bearing, the clasp ring can also withstand a certain axial force, providing additional support and protection for the second bearing, which helps to prolong the service life of the second bearing and improve the overall performance of the equipment.

[0039] The design of the clasp ring also makes the installation and disassembly of the second bearing more convenient. By simply operating the clasp ring, the second bearing can be quickly installed and disassembled, improving work efficiency.

[0040] Further technical solutions, the air inlet and the air outlet are both circular.

[0041] The air inlet and the air outlet are both circular, which can reduce the processing difficulty and also ensure the air intake.

[0042] Taking the air inlet as an example, the circular air inlet can ensure a relatively uniform flow field distribution when the air enters, reducing the turbulence of the airflow, which helps to ensure that the air enters the fan at a stable speed and pressure, thereby improving the efficiency and performance of the fan.

[0043] The design of the circular air inlet also helps to reduce airflow noise. Since the circular air inlet can provide more uniform airflow, it can reduce the noise caused by unstable airflow.

[0044] Further technical solutions, the side suction type flow channel is smoothly curved, or the side suction type flow channel includes a plurality of sequentially connected bending segments.

[0045] The side suction type flow channel can be a curved flow channel or a bending flow channel, and the effects are different. For example, the curved flow channel design can reduce flow loss during gas incidence and discharge, while the bending flow channel design can limit the speed of the fluid.

[0046] The "first", "second", etc. used in this paper do not mean to specifically indicate the order or sequence, nor to limit the case. They are only used to distinguish the components or operations described with the same technical terms.

[0047] As used herein, the terms "connected," "coupled," or "positioned" are used broadly and encompass both direct and indirect connections, couplings, or positioning, as well as any two or more components or devices that are coupled or associated with each other in a manner that enables the components or devices to perform an action on or with each other.

[0048] As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having," and the like are open-ended terms that are intended to be synonymous, and are generally used to permit a statement of openness to follow the term.

[0049] As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having," and the like are open-ended terms that are intended to be synonymous, and are generally used to permit a statement of openness to follow the term.

[0050] As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having," and the like are open-ended terms that are intended to be synonymous, and are generally used to permit a statement of openness to follow the term.

[0051] The working principle and advantages of the utility model are as follows: when the fan is powered on, the electromagnetic field generated by the stator magnetic pole and the permanent magnet ring in the rotor interact, and the rotor rotates, in this process, the shaft tube part supports the shaft center of the rotor, and the bearing rolls in the shaft tube part to reduce friction and wear. The fan blade will generate pressure difference when rotating, and the existence of the pressure difference makes the outside air enter the containing cavity, and then generates airflow; through the setting of the side suction type flow channel, the area and distribution range of the upper air inlet of the fan are equivalent to being enlarged, and the effect is as follows: on the one hand, the air intake amount per unit time is increased, and the fan capacity is improved, realizing the improvement of the performance and efficiency of the fan; on the other hand, more air flow helps to effectively take away heat, improving the heat dissipation effect; on the other hand, compared with other methods for improving the performance of the fan, such as replacing a more efficient motor, the application does not need to change the requirement of the motor, and can realize the "high fan performance" under the condition of "low motor power", so the cost is lower, and the maintenance and maintenance requirements are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 It is a structure schematic diagram of the heat dissipation fan with a side suction type flow channel;

[0053] Figure 2 It is an exploded view of Figure 1 ;

[0054] Figure 3 It is an enlarged view of A in Figure 1 ;

[0055] In the above drawings: 1, base; 11, containing cavity; 12, corner area; 2, rotor; 21, shaft center; 211, groove body; 3, stator; 31, shaft tube part; 4, first bearing; 5, side suction flow channel; 51, air inlet; 52, air outlet; 6, air inlet side; 7, elastic member; 8, gasket; 9, second bearing; 10, clasp. DETAILED DESCRIPTION

[0056] The utility model will be further described below in combination with drawings and examples:

[0057] Examples: the following will be described in detail to the case for clear explanation, any person skilled in the art after understanding the example of the case, when can be taught by the technology of the case, change and modification, it does not deviate from the spirit and scope of the case.

[0058] The language in this paper is only for describing specific embodiments and is not intended to limit the case. The singular form such as "a", "this", "this", "this" and "the" is also used in this paper, which also includes the plural form.

[0059] Reference Figures 1-3 A heat dissipation fan with a side suction flow channel, comprising:

[0060] The base 1 is provided as a support component and is provided with a containing cavity 11;

[0061] The rotor 2 is rotatably arranged in the containing cavity 11 and has a shaft center 21;

[0062] The stator 3 is fixedly arranged in the containing cavity 11 and coaxially arranged with the rotor 2; the stator 3 has a shaft tube part 31 corresponding to the shaft center 21, and the first bearing 4 is arranged in the shaft tube part 31, and the first bearing 4 is sleeved on the shaft center 21;

[0063] Among them, the base 1 is provided with at least one side suction flow channel 5, and the side suction flow channel 5 forms an air inlet 51 on the surface of the base 1 towards the air inlet side 6 and forms an air outlet 52 on the cavity wall of the containing cavity 11; the extension direction of the axis of the air inlet 51 and the extension direction of the axis of the air outlet 52 have an included angle.

[0064] When the fan is powered on, the electromagnetic field generated by the magnetic pole of the stator 3 interacts with the permanent magnet ring in the rotor 2, which drives the rotor 2 to rotate. In this process, the shaft tube part 31 supports the shaft center 21 of the rotor 2, and the bearing rolls in the shaft tube part 31 to reduce friction and wear.

[0065] It should be noted that the stator 3, the rotor 2 and the bearing are provided as existing, and the specific detailed principle can refer to the existing description, which is not expanded here.

[0066] The fan blade generates a pressure difference when rotating, and the existence of the pressure difference causes external air to enter the containing cavity 11, and then generates airflow; through the setting of the side suction type flow channel 5, the area and distribution range of the upper fan air inlet 51 are equivalent to being enlarged, and the effects are as follows: on the one hand, the air intake amount per unit time is increased, and the fan air volume is improved, realizing the improvement of fan performance and efficiency; on the other hand, more air flow helps to more effectively take away heat, improving the heat dissipation effect; on the other hand, compared with other methods for improving fan performance, such as replacing a more efficient motor, the setting in the application has lower cost and simpler operation, and does not need more professional technicians to maintain and maintain.

[0067] It should be noted that the setting of the side suction type flow channel 5 enlarges the area and distribution range of the upper fan air inlet 51 without adjusting the shape and size of the base 1.

[0068] The side suction type flow channel 5 forms an air inlet 51 on the surface of the base 1 facing the air inlet side 6 and forms an air outlet 52 on the cavity wall of the containing cavity 11, and the extension direction of the axis of the air inlet 51 and the extension direction of the axis of the air outlet 52 have an included angle, so that the air inlet 51 of the side suction type flow channel 5 can be directly aligned with the air inlet side 6 to improve the air inlet effect, and at the same time, the air outlet 52 of the side suction type flow channel 5 can be directly aligned with the side of the fan rotor 2 (such as the middle part of the side), so that the airflow sucked through the air inlet 51 of the side suction type flow channel 5 is sent into the containing cavity 11 along the radial direction of the rotor 2, realizing the effect of wind pressure superposition on the basis of the original air outlet of the fan rotor 2.

[0069] Referring to Figure 1 , Figure 2 In the embodiment, the side suction type flow channel 55 is provided in multiple, and the corner area 12 on the base 1 is provided with the side suction type flow channel 55.

[0070] The appropriate increase in the number of side suction type flow channels 5 helps to improve the air intake, so that the effects of improving the fan performance and the like in the above embodiment are further improved.

[0071] In order to disperse each side suction type flow channel 5 and avoid mutual interference, the side suction type flow channel 5 is arranged on the corner area 12 of the base 1.

[0072] Optionally, the middle part of each end of the base 1 is provided with a side suction type flow channel 5. The side suction type flow channel 5 can be arranged only in the corner area 12 or only in the above-mentioned middle part, or both.

[0073] Referring to Figure 2 In the embodiment, the corner area 12 on the base 1 and the side suction type flow channel 5 are both provided with four.

[0074] Optionally, the base 1 is a square base 1 or approximately square, at this time, the corner area 12 has four, corresponding to the side suction type flow channel 5 is provided with four, when still need to be set in the above-mentioned middle part, the side suction type flow channel 5 is provided with eight, at this time, the fan performance can be improved by 5 to 10 percent.

[0075] Referring to Figure 1 , Figure 2 In this embodiment, it also includes a spring 7, one end of the spring 7 acts on the first bearing 4, the other end of the spring 7 acts on the shaft tube part 31.

[0076] Optionally, the spring 7 adopts a spring structure, such as a compression spring.

[0077] The spring 7 can provide appropriate pre-tightening force for the bearing, which helps to ensure that the bearing maintains a stable running state in the shaft tube part 31, reduces vibration and noise caused by looseness or excessive gap.

[0078] The spring 7 can also absorb and buffer the vibration and impact during the operation of the fan. When the fan rotates at high speed, it will produce a certain vibration and impact force. The presence of the spring 7 can effectively absorb these vibrations and impacts, protect other parts of the fan from damage, and thus improve the stability and durability of the fan.

[0079] Referring to Figure 1 , Figure 2 In this embodiment, a gasket 8 is provided between the first bearing 4 and the spring 7, and the spring 7 acts on the first bearing 4 through the gasket 8.

[0080] The gasket 8 is arranged between the first bearing 4 and the spring 7, which can provide additional support for the bearing and enhance the stability of the fan structure.

[0081] By reasonably designing the thickness and material of the gasket 8, the pre-tightening force of the bearing can be adjusted to ensure the smoothness of the fan during operation.

[0082] The gasket 8 has a certain elasticity and can absorb the impact and vibration between the first bearing 4 and the spring 7, reducing noise and wear.

[0083] During the operation of the fan, the gasket 8 can slow down the radial and axial runout of the bearing, improving the running accuracy of the fan.

[0084] Referring to Figure 1 , Figure 2 In this embodiment, along the length extension direction of the shaft tube part 31, the side surface of the spring 7 away from the gasket 8 is attached to the shaft tube part 31.

[0085] The elastic element 7 is installed inside the shaft tube 31. Here, the elastic element 7 as a whole will be described. The two symmetrical ends of the elastic element 7 contact the gasket 8 and the shaft tube 31 respectively, so that the elastic element 7 is fixed inside the shaft tube 31.

[0086] Regarding the surface of the elastic element 7 away from the gasket 8 that contacts the shaft tube portion 31, the following additional explanation is provided: A portion of the inner wall of the shaft tube portion 31 may protrude, and the surface of the elastic element 7 away from the gasket 8 contacts this protruding portion. The overall shape and internal cavity configuration of the shaft tube portion 31 are conventional.

[0087] See Figure 1 , Figure 2 In this embodiment, a second bearing 9 is also included, which is sleeved on the shaft 21.

[0088] By setting the second bearing 9, on the one hand, the load of the first bearing 4 can be shared; on the other hand, in high-speed operation, a single bearing may gradually fail due to friction and wear. Setting two bearings can reduce the friction and wear of each bearing and extend its service life; furthermore, setting the second bearing 9 can improve the running stability of the shaft 21 and reduce vibration and noise.

[0089] See Figure 3 In this embodiment, a buckle 10 is also included, which is sleeved on the shaft 21, and a groove 211 is provided on the shaft 21 corresponding to the buckle 10;

[0090] Along the length extension direction of the shaft tube portion 31, the two side surfaces of the second bearing 9 are respectively attached to the retaining ring 10 and the shaft tube portion 31.

[0091] The retaining ring 10 cooperates with the shaft tube 31 to fix the second bearing 9, preventing it from moving or falling off in the axial direction of the shaft 21, and ensuring the normal operation and stability of the second bearing 9.

[0092] During the operation of the second bearing 9, the retaining ring 10 can also withstand a certain axial force, providing additional support and protection for the second bearing 9. This helps to extend the service life of the second bearing 9 and improve the overall performance of the equipment.

[0093] The design of the retaining ring 10 also makes the installation and removal of the second bearing 9 more convenient. By simply operating the retaining ring 10, the second bearing 9 can be quickly installed and removed, improving work efficiency.

[0094] The buckle 10 is fixed by the groove 211.

[0095] The fitting of the second bearing 9 to the shaft tube 31 is described above as for the fitting of the elastic element 7 to the shaft tube 31.

[0096] See Figure 2In the embodiment, the air inlet 51 and the air outlet 52 are circular.

[0097] The air inlet 51 and the air outlet 52 are circular, which can reduce the processing difficulty and ensure the air inlet amount.

[0098] Taking the air inlet 51 as an example, the circular air inlet 51 can ensure a relatively uniform flow field distribution when the air flow enters, reduce the turbulence of the air flow, and help to ensure that the air enters the fan at a stable speed and pressure, thereby improving the efficiency and performance of the fan.

[0099] The design of the circular air inlet 51 also helps to reduce air flow noise. Since the circular air inlet 51 can provide more uniform air flow, it can reduce noise caused by unstable air flow.

[0100] Referring to Figure 1 Figure 2 In the embodiment, the side suction type flow channel 5 is smoothly curved, or the side suction type flow channel 5 includes a plurality of curved segments connected in sequence.

[0101] The side suction type flow channel 5 can be a curved flow channel or a curved flow channel, and the effects are different. For example, the curved flow channel design can reduce the flow loss during gas incidence and discharge, and the curved flow channel design can limit the speed of the fluid.

[0102] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A heat dissipation fan having a side-suction type flow channel, characterized by: The application relates to a base (1) as a support component and provided with a containing cavity (11); a rotor (2) rotatably arranged in the containing cavity (11) and provided with an axis (21); a stator (3) fixedly arranged in the containing cavity (11) and coaxially arranged with the rotor (2); the stator (3) is provided with an axle tube part (31) corresponding to the axis (21), and a first bearing (4) is arranged in the axle tube part (31) and sleeved on the axis (21); wherein at least one side suction flow channel (5) is arranged on the base (1), the side suction flow channel (5) forms an air inlet (51) on the surface of the base (1) towards an air inlet side (6) and forms an air outlet (52) on the cavity wall of the containing cavity (11); the extending direction of the axis of the air inlet (51) and the extending direction of the axis of the air outlet (52) form an included angle. The side suction flow channel (5) is arranged in multiple numbers, and the corner area (12) on the base (1) is provided with the side suction flow channel (5). The corner area (12) on the base (1) and the side suction flow channel (5) are both arranged in four numbers. The application further comprises an elastic member (7), one end of the elastic member (7) acts on the first bearing (4), and the other end of the elastic member (7) acts on the axle tube part (31). The application further comprises a gasket (8) arranged between the first bearing (4) and the elastic member (7), and the elastic member (7) acts on the first bearing (4) through the gasket (8). Along the length extending direction of the axle tube part (31), one side surface of the elastic member (7) away from the gasket (8) is attached to the axle tube part (31).

2. The heat-dissipating fan with side-suction type flow channel according to claim 1, characterized in that: The application further comprises a second bearing (9) sleeved on the axis (21).

3. The heat dissipation fan having a side-suction type flow channel according to claim 2, characterized in that: The application further comprises a clasp (10) sleeved on the axis (21), and the axis (21) is provided with a groove (211) corresponding to the clasp (10); 4. The heat-dissipating fan with side-suction type flow channel according to claim 1, characterized in that: Along the length extending direction of the axle tube part (31), the two side surfaces of the second bearing (9) are respectively attached to the clasp (10) and the axle tube part (31).

5. The heat-dissipating fan with side-suction type flow channel according to claim 4, characterized in that: The air inlet (51) and the air outlet (52) are both circular.

6. The heat dissipation fan having a side-suction type flow channel according to claim 5, characterized in that: The side suction flow channel (5) is arranged in a smooth curve, or the side suction flow channel (5) comprises multiple bending sections connected in sequence.

7. The heat-dissipating fan with side-suction type flow channel according to claim 1, characterized in that: ​ 8. The heat dissipation fan having a side-suction type flow channel according to claim 7, characterized in that: ​ ​ 9. The heat dissipation fan having a side-suction type flow channel according to any one of claims 1 to 8, characterized by: ​ 10. The heat dissipation fan having a side-suction type flow channel according to any one of claims 1-8, characterized in that: ​

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