Fan

Abstract

The utility model relates to a fan which comprises an inner ring piece and an outer ring piece. The fan blade piece comprises a rotating main body and a plurality of fan blades arranged in the circumferential direction of the rotating main body, the rotating main body is rotatably arranged on the inner ring piece around the axis of the rotating main body, and in the radial direction of the rotating main body, the ends, away from the rotating main body, of the fan blades extend out of the inner ring piece; and the detection piece is arranged on the inner ring piece and used for detecting whether foreign matters exist on the rotating path of the fan blade piece or not, and the detection piece judges whether an abnormal signal is sent out or not according to a detection result. The detection piece is arranged on the inner ring piece and used for detecting whether foreign matter exists on the rotation path of the fan blade piece or not, the detection piece judges whether an abnormal signal is sent out or not according to the detection result, and the fan can directly stop rotation of the fan blade piece according to the abnormal signal or remind a user of conducting shutdown operation on the fan according to the abnormal signal. Therefore, the conditions of load increase and temperature rise of the motor of the fan are avoided, the damage probability of the motor is reduced, and the service life of the product is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of household appliances, and particularly to a fan. Background Art

[0002] At present, a fan achieves the effect of cooling and relieving heat by accelerating air circulation. Compared with an air conditioner, the fan has the advantages of low power consumption and little impact on the environment, and is widely used in families, offices, hospitals, stores and hotels. However, during the long-term operation of the fan, when foreign objects invade the fan, or the fan is used in a high-temperature and high-humidity environment for a long time, or the air inlet grille of the fan is dirty and blocked, etc., it is easy to cause abnormal operation of the fan, an increase in the load of the operating motor, an increase in the motor temperature rise, resulting in motor damage, and even dangerous situations such as fires. Summary of the Utility Model

[0003] Based on this, in view of the problem that abnormal operation of the fan may cause motor damage and even dangerous situations such as fires, it is necessary to provide a fan.

[0004] A fan, comprising:

[0005] An inner ring member;

[0006] A blade member, including a rotating main body and a plurality of blades circumferentially arranged around the rotating main body. The rotating main body is rotatably arranged on the inner ring member around its own axis, and in the radial direction of the rotating main body, the end of the blade far from the rotating main body extends out of the inner ring member;

[0007] A detection member, arranged on the inner ring member, and used to detect whether there are foreign objects on the path of rotation of the blade member. The detection member judges whether to emit an abnormal signal according to the detection result.

[0008] In one embodiment, the detection member is a wave generator, which can emit detection waves towards the blade and judge whether to emit an abnormal signal according to the detection waves reflected back from the blade.

[0009] In one embodiment, the fan further includes a driving member, the driving member is in transmission connection with the rotating main body, and the driving member is used to drive the rotating main body to rotate;

[0010] The driving member is in communication connection with the detection member, and the driving member can stop driving the rotation of the blade member according to the abnormal signal.

[0011] In one embodiment, the fan further includes a control board, the control board is respectively in communication connection with the driving member and the detection member, and the control board can control the driving member to stop driving the rotation of the blade member according to the abnormal signal.

[0012] In one embodiment, a motor hole is further formed on a side of the inner ring member away from the blade member, and the driving member is disposed in the motor hole.

[0013] In one embodiment, a first installation groove is recessed on an inner wall of the motor hole, and a detection hole is formed on an inner wall of the first installation groove and penetrates to a side of the inner ring member facing the blade member;

[0014] The detection member has a detection body and a detection portion. The detection body is disposed in the first installation groove, and the detection portion passes through the detection hole.

[0015] In one embodiment, a first threaded hole is further formed on the inner ring member, and the first threaded hole is disposed in the first installation groove. A first avoidance hole is formed on the detection body. The motor further includes a first fixing member, and the first fixing member passes through the first avoidance hole and is threadedly connected to the first threaded hole.

[0016] In one embodiment, a connection hole is provided on a side of the inner ring member facing the blade member, and the connection hole communicates with the motor hole;

[0017] The driving member includes a driving body and a rotatable driving shaft disposed on the driving body. The driving body is disposed in the motor hole, and the driving shaft passes through the connection hole and is connected to the rotating body.

[0018] In one embodiment, the fan further includes a knob member. The driving shaft is sequentially provided with a limiting portion, a locking section, and a threaded section along the axial direction. A locking hole is formed on the rotating body. The locking section is located in the locking hole, and in the circumferential direction of the driving shaft, the locking section and the locking hole are locked with each other;

[0019] The knob member is threadedly connected to the threaded section, and both sides of the rotating body in the axial direction of the driving shaft are respectively abutted against the limiting portion and the knob member.

[0020] In one embodiment, the fan further includes an outer ring member and a connecting member. The outer ring member is disposed around an outer periphery of the inner ring member. Two ends of the connecting member are respectively connected to the inner ring member and the outer ring member, and the blade member is disposed in the outer ring member.

[0021] In one embodiment, a second installation groove is formed on an outer peripheral surface of the outer ring member, and the fan further includes a control board, and the control board is disposed in the second installation groove.

[0022] In one embodiment, a second threaded hole is further formed on the outer ring member, and the second threaded hole is located in the second installation groove. A second avoidance hole is formed on the control board;

[0023] The fan further includes a second fixing member which passes through the second avoidance hole and is threadedly connected to the second threaded hole.

[0024] In one embodiment, a wire groove is provided on the connecting member.

[0025] In one embodiment, an air duct is formed between the outer ring member and the inner ring member. The fan further includes two mesh covers, each of the mesh covers is disposed on at least one of the outer ring member and the inner ring member, the two mesh covers are respectively located at two ends of the blade body in the axial direction, and each of the mesh covers covers the air duct.

[0026] In one embodiment, the fan includes a handle member. One end of the handle member is mounted on the inner ring member, and the other end is provided with a handle. An installation hole is formed in one of the mesh covers, and the handle member is located in the installation hole.

[0027] In the above-mentioned fan, the detection member is disposed on the inner ring member and is used to detect whether there is a foreign object in the rotation path of the blade member. The detection member judges whether to emit an abnormal signal according to the detection result. The fan can directly stop the rotation of the blade member according to the abnormal signal, or the fan reminds the user to perform a shutdown operation on the fan according to the abnormal signal to stop the rotation of the fan member, thereby avoiding the situation that the load of the motor of the fan increases and the temperature rises, reducing the probability of motor damage, and improving the service life of the product. Description of the Drawings

[0028] Figure 1 It is an exploded view of the fan in some embodiments of the present application.

[0029] Figure 2 It is a cross-sectional view of the fan in some embodiments of the present application.

[0030] Figure 3 It is a structural view of the inner ring member and the outer ring member in some embodiments of the present application.

[0031] Description of the Reference Numerals:

[0032] Inner ring member 10; motor hole 11; first installation groove 12; detection hole 13; first threaded hole 14; connection hole 15;

[0033] Blade member 20; rotation main body 21; fan blade 22; locking hole 23;

[0034] Detection member 30; detection main body 31; detection portion 32; first avoidance hole 33; first fixing member 34;

[0035] Driver 40; driving body 41; drive shaft 42; limiting part 43; locking section 44; threaded section 45; knob part 46;

[0036] Control board 50; second avoidance hole 51;

[0037] Outer ring part 60; connecting part 61; second installation groove 62; second threaded hole 63; second fixing part 64; wire groove 65;

[0038] Mesh cover 70; handle part 71; handle 72; mounting hole 73; Detailed implementation manner

[0039] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manner of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0040] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0041] In addition, if terms such as "first" and "second" appear, these terms are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0042] In this application, unless otherwise clearly defined or limited, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In this application, unless otherwise clearly defined or limited, if there is a description such as the first feature being "on" or "under" the second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower horizontal level than the second feature.

[0044] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation manner.

[0045] Refer to Figure 1 、 Figure 2 and Figure 3 , a fan provided by an embodiment of this application includes an inner ring member 10, a blade member 20 and a detection member 30. The blade member 20 includes a rotating main body 21 and a plurality of fan blades 22 circumferentially arranged around the rotating main body 21. The rotating main body 21 is rotatably disposed on the inner ring member 10 around its own axis, and at the radial direction of the rotating main body 21, the end of the fan blade 22 away from the rotating main body 21 extends out of the inner ring member 10. Thus, when the rotating main body 21 drives the plurality of fan blades 22 to rotate, since the height of the fan blades 22 is higher than that of the rotating main body 21, the plurality of fan blades 22 can extract the air on the side close to the inner ring member 10, and after accelerating the air, discharge it from the side away from the inner ring member 10. Furthermore, an air flow in the axial direction of the rotating main body 21 will be formed through the plurality of fan blades 22, thereby meeting the user's cooling requirements.

[0046] During actual use, if there is a foreign object on the impeller member 20, the foreign object will cause the impeller member 20 to not rotate normally, thereby increasing the load on the motor of the fan, raising the temperature rise of the motor, causing damage to the motor, and even triggering dangerous situations such as fires.

[0047] Therefore, the detection member 30 is provided on the inner ring member 10 and is used to detect whether there is a foreign object on the path of rotation of the impeller member 20. The detection member 30 determines whether to emit an abnormal signal based on the detection result. The fan can directly stop the rotation of the impeller member 20 according to the abnormal signal, or the fan can remind the user to perform a shutdown operation on the fan according to the abnormal signal to stop the rotation of the fan member, thereby avoiding the situation of increased load and temperature rise of the motor of the fan, reducing the probability of motor damage, and improving the service life of the product.

[0048] In some embodiments of the present application, the detection member 30 is a wave generator. The wave generator can emit a detection wave towards the fan blade 22 and determine whether to emit an abnormal signal based on the detection wave reflected from the fan blade 22. Among them, the detection wave can be an electromagnetic wave or an ultrasonic wave, etc.

[0049] During actual use, the wave generator emits a regular detection wave to the fan blade 22. When the impeller member 20 rotates normally, the detection wave reflected from the fan blade 22 also shows a certain pattern. If the detection wave received by the wave generator remains regular, the wave generator will not emit an abnormal signal.

[0050] If there is a foreign object on the path of rotation of the impeller member 20, for example, a human body or a stone enters the fan, the rotation of the fan blade 22 is blocked by the foreign object and will rotate irregularly. Therefore, after the wave generator emits a regular detection wave to the fan blade 22, the detection wave reflected from the fan blade 22 will show an irregular state. At this time, when the wave generator receives the irregular detection wave, it will emit an abnormal signal.

[0051] It should be noted that the detection member 30 can be, but is not limited to, a wave generator, as long as it can detect foreign objects on the impeller member 20. In some other embodiments, the detection member 30 can also be a photographic member. The photographic member is used to take a photo of the impeller member 20, and then analyze whether there is a foreign object on the rotation path of the impeller member 20 through the photo, so as to emit an abnormal signal.

[0052] In some embodiments of the present application, the fan further includes a driving member 40. The driving member 40 is in transmission connection with the blade member 20, and the driving member 40 is used to drive the rotating body 21 to rotate. Moreover, the driving member 40 is also in communication connection with the detecting member 30. The driving member 40 can stop driving the blade member 20 to rotate according to the abnormal signal sent by the detecting member 30, so as to stop the driving member 40 from driving the blade member 20 at the first time when a foreign object intrudes into the fan, playing a safety role. Optionally, the driving member 40 is a motor, and the motor can be directly stopped through the abnormal signal of the detecting member 30, avoiding damage to the motor due to overload.

[0053] Specifically, in some embodiments, the fan further includes a control board 50. The control board 50 is respectively in communication connection with the driving member 40 and the detecting member 30. The control board 50 can control the driving member 40 to stop driving the blade member 20 to rotate according to the abnormal signal, that is, by analyzing the abnormal signal sent by the detecting member 30, then the control board 50 obtains the result of stopping the driving member 40 and sends a stop signal to the driving member 40. Under the action of the stop signal, the driving member 40 stops driving the blade member 20 to rotate, avoiding damage to the driving member 40.

[0054] In some embodiments, a motor hole 11 is formed on one side of the inner ring member 10 away from the blade member 20, and the driving member 40 is arranged in the motor hole 11, so that the distance between the driving member 40 and the blade member 20 is closer, making it more convenient for the driving member 40 to drive the blade member 20. It can be understood that in some other embodiments, the driving member 40 may not be arranged on the inner ring member 10, and may also be separately arranged on other structures of the fan and drive the blade member 20 to rotate through a transmission shaft or the like.

[0055] Specifically, in some embodiments, a first installation groove 12 is formed by the inner wall of the motor hole 11 being recessed, and a detection hole 13 is formed on the inner wall of the first installation groove 12, and the detection hole 13 penetrates to the side of the inner ring member 10 facing the blade member 20. The detecting member 30 has a detecting body 31 and a detecting portion 32. The detecting body 31 is arranged in the first installation groove 12, and the detecting portion 32 passes through the detection hole 13.

[0056] Among them, the detecting portion 32 is used to detect whether there is a foreign object on the rotation path of the blade. When the detecting member 30 is a wave generator, the detecting portion 32 is the wave emission port of the wave generator. Through the detection hole 13, the wave emission port of the wave generator can face the blade member 20, so as to emit a detection wave to the blade member 20, and then detect whether there is a foreign object on the rotation path of the blade member 20.

[0057] Further, in order to fix the detection member 30 on the inner ring member 10, a first threaded hole 14 is also provided on the inner ring member 10. The first threaded hole 14 is located in the first installation groove 12. A first avoidance hole 33 is provided on the detection main body 31. The motor further includes a first fixing member 34. The first fixing member 34 passes through the first avoidance hole 33 and is threadedly connected to the first threaded hole 14, so that the detection main body 31 is fixed on the inner ring member 10 through the first fixing member 34. Optionally, the first fixing member 34 is a bolt.

[0058] In some embodiments, in order to connect the driving member 40 in the motor hole 11 with the wind blade member 20, a connection hole 15 is provided on one side of the inner ring member 10 facing the wind blade member 20. The connection hole 15 communicates with the motor hole 11. The driving member 40 includes a driving main body 41 and a rotatable driving shaft 42 provided on the driving main body 41. The driving main body 41 is arranged in the motor hole 11. The driving shaft 42 passes through the connection hole 15 and is connected to the rotating main body 21. The driving main body 41 drives the rotating main body 21 to rotate through the driving shaft 42, thereby forming an air flow.

[0059] Further, in order to connect the driving main body 41 with the driving shaft 42, the fan further includes a knob member 46. The driving shaft 42 is sequentially provided with a limiting portion 43, a locking section 44, and a threaded section 45 along the axial direction. A locking hole 23 is provided on the rotating main body 21. The locking section 44 is located in the locking hole 23, and in the circumferential direction of the driving shaft 42, the locking section 44 and the locking hole 23 are locked to each other. Herein, the locking between the locking section 44 and the locking hole 23 means that in the circumferential direction of the driving shaft 42, the locking section 44 cannot move relative to the locking hole 23. The locking section 44 can lock the locking section 44 and the locking hole 23 to each other by means of key and keyway cooperation, or by setting the cross-sections of both the locking section 44 and the locking hole 23 to be square, or by setting the cross-section of the driving shaft 42 at the locking section 44 to be D-shaped and the cross-section of the locking hole 23 to be D-shaped as well. The two cooperate to prevent the rotating main body 21 from moving in the circumferential direction of the driving shaft 42.

[0060] Among them, the knob member 46 is threadedly connected to the threaded section 45. The two sides of the rotating main body 21 in the axial direction of the driving shaft 42 are respectively abutted against the limiting portion 43 and the knob member 46, so that the rotating main body 21 will not rotate in the axial direction of the driving shaft 42. Combining with the movement of the locking section 44 and the locking hole 23 in the circumferential direction between the rotating main body 21 and the driving shaft 42, the rotating main body 21 is fixed on the driving shaft 42 without shaking, ensuring the stability of the rotation of the wind blade member 20 together with the driving shaft 42.

[0061] In some embodiments of the present application, in order to further ensure the safety of the fan operation and reduce the situation of foreign objects invading the movement path of the blade member 20, the fan further includes an outer ring member 60 and a connecting member 61. The outer ring member 60 is disposed around the outer periphery of the inner ring member 10, and the two ends of the connecting member 61 are respectively connected to the inner ring member 10 and the outer ring member 60, so as to play a role in fixing the outer ring member 60. Among them, the blade member 20 is disposed inside the outer ring member 60, and the outer ring member 60 circumferentially covers the blade member 20, reducing the probability of foreign objects invading from the circumference of the blade member 20.

[0062] In some embodiments, a wind channel is formed between the outer ring member 60 and the inner ring member 10, and the wind channel penetrates along the axial direction of the blade member 20, so that the blade member 20 can extract and discharge air through the wind channel, thereby forming an air flow. Among them, the fan further includes two mesh covers 70, and each mesh cover 70 is disposed on at least one of the outer ring member 60 and the inner ring member 10, that is, the mesh cover 70 can be installed on both the outer ring member 60 and the inner ring member 10 at the same time, or can be installed on one of the outer ring member 60 and the inner ring member 10. Optionally, each mesh cover 70 is fixed to the outer ring member 60 by means of buckles and screws.

[0063] The two mesh covers 70 are respectively located at both ends of the blade body in the axial direction. Each mesh cover 70 covers the wind channel, so as to cover both ends of the blade member 20 in the axial direction through the two mesh covers 70, thereby protecting both ends of the blade member 20 through the mesh cover 70 and reducing the probability of foreign objects invading into the blade member 20.

[0064] Further, an installation hole 73 is formed in one of the mesh covers 70. The fan further includes a handle member 71. In the axial direction of the blade member 20, one end of the handle member 71 is installed on the inner ring member 10, and the other end is provided with a handle 72, so as to facilitate the taking and moving of the fan through the handle member 71. At the same time, an installation hole 73 is formed in one of the mesh covers 70, and the handle member 71 is located in the installation hole 73, so that the installation of the mesh cover 70 does not affect the installation of the handle member 71. Optionally, one end of the handle member 71 is installed in the motor hole 11 of the inner ring member 10, so as to cover the motor hole 11 through the handle member 71, and further protect the driving member 40 in the motor hole 11 to prevent foreign objects from invading and causing danger during the operation of the driving member 40.

[0065] In some embodiments, in addition to playing a role in protecting the blade member 20, the outer ring member 60 can also be used to install other components of the fan. Specifically, a second installation groove 62 is formed on the outer peripheral surface of the outer ring member 60, and the control board 50 is disposed in the second installation groove 62, that is, the control board 50 is installed on the outer peripheral surface of the outer ring member 60, improving the compactness of the internal structure of the fan and reducing the volume of the fan.

[0066] Specifically, a second threaded hole 63 is further formed in the outer ring member 60. The second threaded hole 63 is located in the second installation groove 62. A second avoidance hole 51 is formed in the control board 50. The fan further includes a second fixing member 64. The second fixing member 64 passes through the second avoidance hole 51 and is threadedly connected to the second threaded hole 63. In this way, through the cooperation of the second fixing member 64 and the second threaded hole 63, the control board 50 is fixed to the outer ring member 60. Optionally, the second fixing member 64 is a bolt.

[0067] In some embodiments, a wire groove 65 is further provided on the connecting member 61. The wire groove 65 can be used to place the wire harness of the fan, avoiding the wire harness being messy and affecting the normal rotation of the blade member 20. Among them, the wire groove 65 communicates with the motor hole 11 on the inner ring member 10, so that the wire harness of the driving member 40 in the motor hole 11 can be accommodated through the wire groove 65.

[0068] The above-mentioned fan has at least the following advantages:

[0069] The detection member 30 is arranged on the inner ring member 10 and is used to detect whether there is a foreign object in the rotation path of the blade member 20. The detection member 30 judges whether to emit an abnormal signal according to the detection result. The fan can directly stop the rotation of the blade member 20 according to the abnormal signal, or the fan can remind the user to perform a shutdown operation on the fan according to the abnormal signal to stop the rotation of the fan member, thereby avoiding the situation that the load of the fan motor increases and the temperature rises, reducing the probability of motor damage and improving the service life of the product.

[0070] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0071] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A fan, characterized in that, The fan comprises: Inner ring (10); The fan blade member (20) comprises a rotating body (21) and a plurality of blades (22) arranged around the circumference of the rotating body (21), wherein the rotating body (21) is rotatably arranged on the inner ring member (10) around its own axis, and in the radial direction of the rotating body (21), one end of the blade (22) away from the rotating body (21) extends out of the inner ring member (10); The detection member (30) is provided on the inner ring member (10) and is used to detect whether there is a foreign object on the rotation path of the fan blade member (20). The detection member (30) determines whether to issue an abnormal signal based on the detection result.

2. The fan according to claim 1, wherein, The detection member (30) is a wave generator capable of emitting detection waves toward the fan blades (22) and determining whether an abnormal signal is emitted based on the detection waves reflected back from the fan blades (22).

3. The fan according to claim 1, wherein The fan further comprises a driving member (40), the driving member (40) being in transmission connection with the rotating body (21), and the driving member (40) being used to drive the rotating body (21) to rotate; The driving member (40) is communicatively connected to the detecting member (30), and the driving member (40) can stop driving the fan blade member (20) to rotate according to the abnormal signal.

4. The fan according to claim 3, wherein, The fan further comprises a control panel (50), wherein the control panel (50) is respectively connected to the driving member (40) and the detecting member (30), and the control panel (50) can control the driving member (40) to stop driving the fan blade member (20) to rotate according to the abnormal signal.

5. The fan according to claim 3, wherein A motor hole (11) is further provided on a side of the inner ring member (10) away from the fan blade member (20), and the driving member (40) is arranged in the motor hole (11).

6. The fan according to claim 5, characterized in that, The inner wall of the motor hole (11) is recessed to form a first mounting groove (12), and the inner wall of the first mounting groove (12) is provided with a detection hole (13), and the detection hole (13) penetrates to the side of the inner ring member (10) facing the fan blade member (20); The detection member (30) comprises a detection body (31) and a detection portion (32); the detection body (31) is arranged in the first installation groove (12); and the detection portion (32) is passed through the detection hole (13).

7. The fan according to claim 6, wherein, The inner ring member (10) is further provided with a first threaded hole (14), which is arranged in the first mounting groove (12); the detection body (31) is provided with a first avoidance hole (33); the motor further comprises a first fixing member (34), which is passed through the first avoidance hole (33) and is threadedly connected to the first threaded hole (14).

8. The fan according to claim 5, characterized in that, A connecting hole (15) is provided on a side of the inner ring member (10) facing the fan blade member (20), and the connecting hole (15) is communicated with the motor hole (11); The driving member (40) includes a driving main body (41) and a rotatable driving shaft (42) provided on the driving main body (41). The driving main body (41) is disposed in the motor hole (11), and the driving shaft (42) passes through the connection hole (15) to be connected to the rotating main body (21).

9. The fan according to claim 8, characterized in that, The fan further includes a knob member (46). The driving shaft (42) is sequentially provided with a limiting portion (43), a locking section (44), and a threaded section (45) along the axial direction. A locking hole (23) is formed on the rotating main body (21). The locking section (44) is located in the locking hole (23), and in the circumferential direction of the driving shaft (42), the locking section (44) and the locking hole (23) are locked to each other; The knob member (46) is threadedly connected to the threaded section (45), and the rotating main body (21) abuts against the limiting portion (43) and the knob member (46) respectively on both sides in the axial direction of the driving shaft (42).

10. The fan according to claim 1, characterized in that, The fan further includes an outer ring member (60) and a connecting member (61). The outer ring member (60) is disposed around the outer periphery of the inner ring member (10). Both ends of the connecting member (61) are respectively connected to the inner ring member (10) and the outer ring member (60). The blade member (20) is disposed in the outer ring member (60).

11. The fan according to claim 10, wherein, A second mounting groove (62) is formed on the outer peripheral surface of the outer ring member (60). The fan further includes a control board (50), and the control board (50) is disposed in the second mounting groove (62).

12. The fan according to claim 11, characterized in that, A second threaded hole (63) is further formed on the outer ring member (60). The second threaded hole (63) is located in the second mounting groove (62). A second avoidance hole (51) is formed on the control board (50); The fan further includes a second fixing member (64). The second fixing member (64) passes through the second avoidance hole (51) and is threadedly connected to the second threaded hole (63).

13. The fan according to claim 10, characterized in that, A wire groove (65) is provided on the connecting member (61).

14. The fan according to claim 10, characterized in that, An air duct is formed between the outer ring member (60) and the inner ring member (10). The fan further includes two mesh covers (70). Each mesh cover (70) is disposed on at least one of the outer ring member (60) and the inner ring member (10). The two mesh covers (70) are respectively located at both ends of the blade member (20) in the axial direction, and each mesh cover (70) covers the air duct.

15. The fan according to claim 14, characterized in that, The fan includes a handle member (71). One end of the handle member (71) is mounted on the inner ring member (10), and the other end is provided with a handle (72). A mounting hole (73) is formed on one of the mesh covers (70), and the handle member (71) is located in the mounting hole (73).

Images