A cooling fan with a label that slowly rotates following a high-speed fan blade

Abstract

The present invention discloses a heat dissipation fan with a label following a high-speed fan blade rotating slowly, which comprises a base, a central shaft and a stator module fixed on the base, a fan blade rotatably mounted on the central shaft, and a rotor module fixed inside the hub of the fan blade. A rotatable label fixing seat is further provided at the upper end of the central shaft, and a label with product information is provided on the upper end surface of the label fixing seat; there is a gap formed between the lower end of the label fixing seat and the hub of the fan blade, and a wind generating member capable of generating a rotating air flow during rotation is provided at the upper end of the hub. A wind receiving member is provided at the lower end of the label fixing seat. After the fan blade rotates at a high speed, the wind generating member on the hub generates a rotating air flow through rotation, and the rotating air flow pushes the wind receiving member to drive the label fixing seat to rotate slowly. The label and the product information on its surface rotate slowly along with the label fixing seat, so as to achieve the purpose of driving the label to rotate at a differential speed relative to the fan blade, and the product information on the surface of the label can be seen clearly, which is very interesting.

Description

Technical Field:

[0001] The present invention relates to the technical field of cooling fan products, and particularly to a cooling fan in which a label rotates slowly following a high-speed fan blade. Background Art:

[0002] With the development of the electronics industry, the development of electronic products has gradually evolved towards high performance, high frequency, high speed, and thin and light. As the performance of electronic products continues to improve, the computing speed is getting faster and faster. The computing speed of the internal chipset continues to increase, the number of chips continues to increase, and the heat generated when the chips work also increases accordingly. If these heats are not dissipated in time, it will greatly affect the performance of electronic products, reduce the computing speed of electronic products, and may also burn out electronic products as the heat accumulates continuously. Therefore, it is necessary to dissipate the heat of electronic products.

[0003] Cooling fans play an extremely important role in the heat dissipation of current electronic products. Currently, general cooling fans usually set labels for displaying product information (such as LOGO) on the hub surface of the fan blades. However, when the cooling fan is working, the label will rotate at a high speed along with the fan blade, so that the product information on the label cannot be seen clearly at this time, and it will make people feel dizzy and lack of interest.

[0004] In view of this, the inventor of the present invention proposes the following technical solutions. Summary of the Invention:

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a cooling fan in which a label rotates slowly following a high-speed fan blade.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: The cooling fan in which a label rotates slowly following a high-speed fan blade includes a base, a central shaft and a stator module fixed on the base, a fan blade rotatably installed on the central shaft, and a rotor module fixed in the hub of the fan blade and adapted to the stator module. A rotatable label fixing seat is further provided at the upper end of the central shaft, and a label with product information is provided on the upper end surface of the label fixing seat; there is a gap between the lower end of the label fixing seat and the hub of the fan blade, and a wind generating member capable of generating a rotating air flow during rotation is provided at the upper end of the hub, and a wind receiving member is provided at the lower end of the label fixing seat. When the fan blade rotates at a high speed, the wind generating member on the hub can generate a rotating air flow through rotation, and the rotating air flow pushes the wind receiving member to drive the label fixing seat to rotate slowly, and the label and the product information on its surface rotate slowly along with the label fixing seat.

[0007] Furthermore, in the above technical solution, a groove is provided at the upper end of the hub. A plurality of first blades serving as the wind power members are integrally formed on the inner wall of the groove. There is also a gap formed between the upper end surface of the first blade and the lower end of the label fixing seat, and a sliding space is formed between the ends of the first blades. The wind receiving member is placed in the sliding space, and there is a gap formed between the lower end surface of the wind receiving member and the bottom surface of the groove.

[0008] Furthermore, in the above technical solution, the first blade is rectangular, and the magnitude of the rotational airflow generated when the first blade rotates is adjusted by adjusting the height and / or length of the first blade.

[0009] Furthermore, in the above technical solution, a first cylindrical body is formed at the lower end of the label fixing seat. A first bearing is fixed in the first cylindrical body, and the first cylindrical body is sleeved on the upper end of the central shaft in a rotatable manner through the first bearing. A plurality of second blades serving as the wind receiving members are formed on the outer periphery of the first cylindrical body.

[0010] Furthermore, in the above technical solution, the second blade is rectangular, and the force on the second blade is changed by adjusting the height and / or length of the second blade to adjust the rotation speed of the label fixing seat.

[0011] Furthermore, in the above technical solution, an installation groove is provided at the upper end of the label fixing seat, and the label is mounted in the installation groove.

[0012] Furthermore, in the above technical solution, a flange protruding inward is formed at the lower end of the first cylindrical body, and a reverse buckle is formed at the upper part of the first cylindrical body. After the first bearing is installed in the first cylindrical body, the lower end of the outer circle of the first bearing abuts against the flange, and the reverse buckle is snap-fixed to the upper end of the outer circle of the first bearing. A convex shaft with a reduced size is formed at the upper end of the central shaft. The first bearing is sleeved on the convex shaft, and a first snap ring is further provided at the upper end of the convex shaft, and the first snap ring abuts against the upper end of the inner circle of the first bearing.

[0013] Furthermore, in the above technical solution, a central tube is formed at the lower end of the hub. The inner hole of the central tube penetrates the upper end surface of the hub. A plurality of bearings are arranged at intervals in the central tube, and the central tube is sleeved on the central shaft through the bearings to form a rotatable assembly. Among them, a spring is sleeved on the central shaft, and the upper end of the spring abuts against the lowermost bearing to fasten the bearing.

[0014] Furthermore, in the above technical solution, the number of the bearings is two, namely a second bearing and a third bearing; a flange is formed in the middle of the inner hole of the central tube. The second bearing is sleeved in the inner hole of the central tube and abuts against the upper end of the flange. A second snap spring is arranged on the central shaft, and the second snap spring abuts against the upper end of the inner circle of the second bearing to fasten the second bearing in the central tube; the third bearing is sleeved in the inner hole of the central tube and abuts against the lower end of the flange, and the upper end of the spring abuts against the lower end of the third bearing to fasten the third bearing in the central tube.

[0015] Furthermore, in the above technical solution, the spring is a tower spring.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: a rotatable label fixing seat is provided at the upper end of the central shaft of the present invention, so that the label provided on the upper end surface of the label fixing seat is indirectly installed above the hub, and the label fixing seat does not affect the normal operation of the fan blade. Moreover, a wind generating member capable of generating a rotating air flow during rotation is provided at the upper end of the hub. Correspondingly, a wind receiving member is provided at the lower end of the label fixing seat. After the fan blade rotates at a high speed, since there is a gap between the lower end of the label fixing seat and the hub of the fan blade, the wind generating member on the hub can generate a rotating air flow through rotation, and the rotating air flow pushes the wind receiving member to drive the label fixing seat to rotate slowly. The label and the product information on its surface rotate slowly with the label fixing seat, so as to achieve the purpose of driving the label to rotate at a differential speed relative to the fan blade, and the product information on the surface of the label can be seen clearly, which is very interesting and makes the present invention have strong market competitiveness. Description of the Drawings:

[0017] Figure 1 is a perspective view of the present invention;

[0018] Figure 2 is a perspective view of the present invention from another perspective;

[0019] Figure 3 is an exploded perspective view of the present invention;

[0020] Figure 4 is a cross-sectional view of the present invention;

[0021] Figure 5 is a perspective view of the label fixing seat in the present invention;

[0022] Figure 6 is a perspective view of the label fixing seat in the present invention from another perspective;

[0023] Figure 7 is a perspective view of the fan blade in the present invention;

[0024] Figure 8 is a perspective view of the fan blade in the present invention from another perspective. Specific implementation manner:

[0025] The present invention will be further described below in conjunction with specific embodiments and the accompanying drawings.

[0026] See Figure 1-8 As shown, it is a heat dissipation fan with a label following the slow rotation of a high-speed fan blade, which includes a base 1, a PCB board 11 arranged on the base 1, a central shaft 2 and a stator module 3 fixed on the base 1, a fan blade 4 rotatably mounted on the central shaft 2, and a rotor module 5 fixed in the hub 41 of the fan blade 4 and adapted to the stator module 3. Among them, the stator module 3 is a coil module, and the rotor module 5 is a magnetic ring, so that the stator module 3 cooperates with the rotor module 5 to form a motor structure. The PCB board 11 is electrically connected to the stator module 3. During operation, the PCB board 11 controls the stator module 3 to generate current after being powered on, and cooperates with the rotor module 5 to drive the fan blade 4 to rotate to generate wind, thereby realizing the heat dissipation function.

[0027] The present invention does not directly set the label 7 with commodity information 71 on the hub 41 of the fan blade 4, so that the label 7 will not rotate at a high speed as the fan blade 4 rotates at a high speed, resulting in the problem that the commodity information on the label cannot be seen clearly and will make people feel dazzled. To solve this problem, the present invention also provides a rotatable label fixing seat 6 at the upper end of the central shaft 2. The upper end surface of the label fixing seat 6 is provided with a label 7 with commodity information 71 (such as a LOGO, etc.), so that the label 7 is indirectly installed above the hub 41, and there is a gap between the lower end of the label fixing seat 6 and the hub 41 of the fan blade 4, so that the hub 41 will not contact the label fixing seat 6 during high-speed rotation. In other words, the label fixing seat 6 will not affect the normal operation of the fan blade 4. In order to enable the fan blade 4 to drive the label fixing seat 6 to rotate slowly during high-speed rotation so that the commodity information 71 of the label 7 can be seen clearly, the present invention also makes the following design: the upper end of the hub 41 is provided with a wind generating member that can generate a rotating air flow during rotation, and the lower end of the label fixing seat 6 is provided with a wind receiving member. When the fan blade 4 rotates at a high speed, due to the gap between the lower end of the label fixing seat 6 and the hub 41 of the fan blade 4, the wind generating member on the hub 41 can generate a rotating air flow through rotation, and the rotating air flow pushes the wind receiving member to drive the label fixing seat 6 to rotate slowly. The label 7 and the commodity information 71 on its surface rotate slowly with the label fixing seat 6, so as to achieve the purpose of driving the label 7 to rotate at a differential speed relative to the fan blade 4, and the commodity information 71 on the surface of the label 7 can be seen clearly, which is very interesting and gives the present invention strong market competitiveness.

[0028] In addition, since the wind power component is arranged on the hub 41, it has a small size, and the size of the label fixing seat 6 is not large either, and the size of the wind receiving component is also small. As a result, the rotational airflow generated by the wind power component is not large, so it cannot drive the small-sized wind receiving component to drive the label fixing seat 6 to rotate quickly, but only can drive the label fixing seat 6 to rotate slowly. Of course, the rotational speed of the label fixing seat 6 can be adjusted by making the sizes of the wind power component and the wind receiving component to meet different usage requirements.

[0029] An installation groove 64 is provided at the upper end of the label fixing seat 6, and the label 7 is mounted in the installation groove 64. In this embodiment, the label 7 is fixedly mounted in the installation groove 64 through its own adhesive layer, and the label 7 can be peeled off relative to the label fixing seat 6 to replace a new label to meet different usage requirements.

[0030] To specifically describe the assembly structure of the wind power component, it is as follows:

[0031] A groove 411 is provided at the upper end of the hub 41, and several first blades 42 serving as the wind power component are integrally formed on the inner wall of the groove 411. So when the fan blade and its hub 41 rotate at a high speed, the first blades 42 will also rotate at a high speed. Since there is also a gap formed between the upper end surface of the first blade 42 and the lower end of the label fixing seat 6, a rotational airflow will be formed during the rotation of the first blade 42. A sliding space is formed between the ends of the first blades 42; the wind receiving component is placed in the sliding space, and there is a gap between the lower end surface of the wind receiving component and the bottom surface of the groove 411, so that the label fixing seat 6 will not affect the normal operation of the fan blade, and the rotational airflow formed during the rotation of the first blade 42 will directly act on the wind receiving component, thereby achieving the purpose of pushing the wind receiving component and finally driving the label fixing seat 6 to rotate. When the label fixing seat 6 rotates, it will drive the label 7 and the product information 71 on its surface to rotate.

[0032] Among them, the first blade 42 is rectangular, and the size of the rotational airflow generated when the first blade 42 rotates is adjusted by adjusting the height and / or length of the first blade 42 to meet different usage requirements. Of course, the first blade 42 can also be other shapes, such as arc-shaped, V-shaped, etc.

[0033] The following specifically describes the assembly structure of the label fixing seat 6.

[0034] A first cylindrical body 61 is formed at the lower end of the label fixing base 6. A first bearing 62 is fixed inside the first cylindrical body 61 and is sleeved on the upper end of the central shaft 2 in a rotatable manner through the first bearing 62. At this time, the label fixing base 6 can rotate relative to the central shaft 2, and it and the fan blades are spaced apart on the central shaft 2. A plurality of second blades 63 serving as the wind-receiving members are formed on the periphery of the first cylindrical body 61. When the first blade 42 rotates, a rotating air flow will be formed, and this rotating air flow acts on the second blade 63 to form a thrust, thereby driving the label fixing base 6 to rotate.

[0035] Among them, the second blade 63 is rectangular, and the force received by the second blade 63 is changed by adjusting the height and / or length of the second blade 63, so as to adjust the rotation speed of the label fixing base 6, thereby meeting different use requirements.

[0036] In this embodiment, the number of the first blades 42 is eight, and correspondingly, the number of the second blades 63 is also eight.

[0037] The specific assembly structure of the label fixing base 6 and the central shaft 2 is as follows: A flange 611 protruding inwards is formed at the lower end of the first cylindrical body 61, and a reverse buckle 612 is formed at the upper part of the first cylindrical body 61. After the first bearing 62 is installed in the first cylindrical body 61, the lower end of the outer circle of the first bearing 62 abuts against the flange 611, and the reverse buckle 612 is snap-fixed to the upper end of the outer circle of the first bearing 62, thereby stably fixing the first bearing 62 in the first cylindrical body 61. The specific assembly structure of the first bearing 62 and the central shaft 2 is as follows: A convex shaft 21 with a reduced size is formed at the upper end of the central shaft 2. The first bearing 62 is sleeved on the convex shaft 21, and a first circlip 22 is further provided at the upper end of the convex shaft 21. The first circlip 22 abuts against the upper end of the inner circle of the first bearing 62, thereby stably installing the first bearing 62 on the convex shaft 21, and finally stably installing the label fixing base 6 on the central shaft 2, and enabling the label fixing base 6 to rotate stably relative to the central shaft 2.

[0038] The specific assembly structure of the fan blade 4 and the central shaft 2 is as follows: A central tube 43 is formed at the lower end of the hub 41, and the inner hole of the central tube 43 penetrates through the upper end face of the hub 41; A number of bearings are arranged at intervals in the central tube 43, and the central tube 43 is sleeved on the central shaft 2 through the bearings to form a rotatable assembly; Among them, a spring 23 is sleeved on the central shaft 2, and the upper end of the spring 23 abuts against the lowermost bearing to fasten the bearing. Since the lowermost bearing is installed from top to bottom, and the gap between the lower end of the central tube 43 and the base is small, it is impossible to assemble a circlip on the central shaft 2 to support / position / fasten the lower end of the lowermost bearing. In order to ensure that the lower end of the lowermost bearing can achieve stable support and positioning, a spring 23 is sleeved on the central shaft 2, and the upper end of the spring 23 abuts against the lowermost bearing to achieve stable support and positioning of the lower end of the bearing, and finally a stable fastening assembly relationship can be achieved, so as to ensure that the fan blade 4 is stably installed on the central shaft 2.

[0039] Specifically as follows: The number of the bearings is two, namely the second bearing 44 and the third bearing 45; A flange 431 is formed in the middle of the inner hole of the central tube 43. The second bearing 44 is inserted into the inner hole of the central tube 43 and abuts against the upper end of the flange 431. A second circlip 24 is arranged on the central shaft 2, and the second circlip 24 abuts against the upper end of the inner circle of the second bearing 44 to fasten the second bearing 44 in the central tube 43; The third bearing 45 is inserted into the inner hole of the central tube 43 and abuts against the lower end of the flange 431, and the upper end of the spring 23 abuts against the lower end of the third bearing 45 to fasten the third bearing 45 in the central tube 43, so as to ensure that the second bearing 44 and the third bearing 45 are stably installed in the central tube 43, and at the same time ensure that the second bearing 44 and the third bearing 45 are stably installed on the central shaft 2, and finally realize the stable installation of the fan blade 4 on the central shaft 2, so that the fan blade 4 can rotate stably on the central shaft 2.

[0040] In addition, as a preferred embodiment of this embodiment, the spring 23 is a tower spring. The tower spring structure is more stable, convenient for assembly, and its upper end size is small, so that under the action of sufficient elastic force, it can form stable support for the inner circle of the lower end of the third bearing 45. If a conventional return spring is used, since the upper and lower ends of the conventional return spring have the same size, when the inner circle of the lower end of the third bearing 45 needs to be supported, the size of the conventional return spring must also be equivalent to the size of the inner circle of the lower end of the third bearing 45, that is, a small-sized conventional return spring needs to be used, and its elastic force is insufficient and cannot stably support the inner circle of the lower end of the third bearing 45. Therefore, using a tower spring can solve the above problems.

[0041] In summary, the present invention is provided with a rotatable label fixing seat 6 at the upper end of the central axis 2, so that the label 7 provided on the upper end surface of the label fixing seat 6 is indirectly installed above the hub 41, and the label fixing seat 6 does not affect the normal operation of the fan blade 4. Furthermore, a wind generating member capable of generating a rotating air flow during rotation is provided at the upper end of the hub 41. Correspondingly, a wind receiving member is provided at the lower end of the label fixing seat 6. After the fan blade 4 rotates at a high speed, since there is a gap between the lower end of the label fixing seat 6 and the hub 41 of the fan blade 4, the wind generating member on the hub 41 can generate a rotating air flow through rotation, and the rotating air flow pushes the wind receiving member to drive the label fixing seat 6 to rotate slowly. The label 7 and the product information 71 on its surface rotate slowly with the label fixing seat 6, so as to achieve the purpose of driving the label 7 to rotate at a differential speed relative to the fan blade 4, and the product information 71 on the surface of the label 7 can be clearly seen, which is extremely interesting and makes the present invention have extremely strong market competitiveness.

[0042] Certainly, the above are only specific embodiments of the present invention, and are not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, features and principles described in the scope of the patent application of the present invention shall be included in the scope of the patent application of the present invention.

Claims

1. A heat dissipation fan with a label following a high-speed fan blade rotating slowly, which includes a base (1), a central shaft (2) fixed on the base (1), a stator module (3), a fan blade (4) rotatably mounted on the central shaft (2), and a rotor module (5) fixed in the hub (41) of the fan blade (4) and adapted to the stator module (3). Characterized in that: A rotatable label fixing seat (6) is further provided at the upper end of the central shaft (2), and a label (7) with product information (71) is provided on the upper end surface of the label fixing seat (6); a gap is formed between the lower end of the label fixing seat (6) and the hub (41) of the fan blade (4), and a wind generating member capable of generating a rotating air flow during rotation is provided at the upper end of the hub (41), and a wind receiving member is provided at the lower end of the label fixing seat (6). When the fan blade (4) rotates at a high speed, the wind generating member on the hub (41) can generate a rotating air flow through rotation, and the rotating air flow pushes the wind receiving member to drive the label fixing seat (6) to rotate slowly, and the label (7) and the product information (71) on its surface rotate slowly along with the label fixing seat (6).

2. A heat dissipation fan with a label following a high-speed fan blade rotating slowly according to claim 1, Characterized in that: A groove (411) is provided at the upper end of the hub (41), and a plurality of first blades (42) serving as the wind generating members are integrally formed on the inner wall of the groove (411). A gap is further formed between the upper end surface of the first blade (42) and the lower end of the label fixing seat (6), and a sliding space is formed between the ends of the first blades (42); the wind receiving member is placed in the sliding space, and a gap is formed between the lower end surface of the wind receiving member and the bottom surface of the groove (411).

3. A heat dissipation fan with a label following a high-speed fan blade rotating slowly according to claim 2, Characterized in that: The first blade (42) is rectangular, and the size of the rotating air flow generated when the first blade (42) rotates is adjusted by adjusting the height and / or length of the first blade (42).

4. A heat dissipation fan with a label following a high-speed fan blade rotating slowly according to any one of claims 1-3, Characterized in that: A first cylindrical body (61) is formed at the lower end of the label fixing seat (6), a first bearing (62) is fixed in the first cylindrical body (61), and the first cylindrical body (61) is sleeved on the upper end of the central shaft (2) in a rotatable manner through the first bearing (62); a plurality of second blades (63) serving as the wind receiving members are formed on the periphery of the first cylindrical body (61).

5. A heat dissipation fan with a label following a high-speed fan blade rotating slowly according to claim 4, Characterized in that: The second blade (63) is rectangular, and the force on the second blade (63) is changed by adjusting the height and / or length of the second blade (63) to adjust the rotation speed of the label fixing seat (6).

6. A heat dissipation fan with a label following a high-speed fan blade rotating slowly according to claim 4, Characterized in that: An installation groove (64) is provided at the upper end of the label fixing seat (6), and the label (7) is mounted in the installation groove (64).

7. A heat dissipation fan with a label following a high-speed fan blade rotating slowly according to claim 4, characterized in that: A flange (611) protruding inward is formed at the lower end of the first cylinder (61), and an undercut (612) is formed at the upper part of the first cylinder (61); after the first bearing (62) is installed in the first cylinder (61), the lower end of the outer circle of the first bearing (62) abuts against the flange (611), and the undercut (612) is snap-fixed to the upper end of the outer circle of the first bearing (62); a convex shaft (21) with a reduced size is formed at the upper end of the central shaft (2), the first bearing (62) is sleeved on the convex shaft (21), and a first snap ring (22) is further arranged at the upper end of the convex shaft (21), and the first snap ring (22) abuts against the upper end of the inner circle of the first bearing (62).

8. A heat dissipation fan with a label following a high-speed fan blade rotating slowly according to claim 4, characterized in that: A central tube (43) is formed at the lower end of the hub (41), and the inner hole of the central tube (43) penetrates the upper end surface of the hub (41); a plurality of bearings are arranged at intervals in the central tube (43), and the central tube (43) is sleeved on the central shaft (2) through the bearings to form a rotatable assembly; wherein, a spring (23) is sleeved on the central shaft (2), and the upper end of the spring (23) abuts against the lowermost bearing to fasten the bearing.

9. A heat dissipation fan with a label following a high-speed fan blade rotating slowly according to claim 8, characterized in that: The number of the bearings is two, namely a second bearing (44) and a third bearing (45); a retaining edge (431) is formed in the middle of the inner hole of the central tube (43), the second bearing (44) is inserted into the inner hole of the central tube (43) and abuts against the upper end of the retaining edge (431), a second snap ring (24) is arranged on the central shaft (2), and the second snap ring (24) abuts against the upper end of the inner circle of the second bearing (44) to fasten the second bearing (44) in the central tube (43); the third bearing (45) is inserted into the inner hole of the central tube (43) and abuts against the lower end of the retaining edge (431), and the upper end of the spring (23) abuts against the lower end of the third bearing (45) to fasten the third bearing (45) in the central tube (43).

10. A heat dissipation fan with a label following a high-speed fan blade rotating slowly according to claim 8, characterized in that: The spring (23) is a tower spring.

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