Fan module and fan

Abstract

The utility model relates to the technical field of fans, in particular to a fan module and a fan. The fan module comprises an air driving piece, a first air duct and a second air duct. The second air cylinder is installed at one end of the first air cylinder, and the first air cylinder and the second air cylinder are communicated in the axial direction. The air driving piece is installed in the first air cylinder and used for driving air flow to flow from the first air cylinder to the second air cylinder. A plurality of first wind cutting pieces are arranged in the first wind barrel and between the wind driving piece and the second wind barrel, and the first wind cutting pieces are arranged around the axis of the first wind barrel at intervals so as to form a plurality of first rectification channels in a spaced mode. A plurality of second air cutting sheets are arranged in the second air duct at intervals around the axis of the second air duct, and a plurality of second rectification channels are formed by the plurality of second air cutting sheets at intervals; the multiple second air cutting pieces are parallel to the axis of the second air cylinder and are in a straight shape. While the air-out force of the fan module is sufficient, the air-out area is kept large enough, and more cool use experience can be provided.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a fan module and a fan. Background Art

[0002] Fans, such as handheld fans, are ideal for cooling off during hot summer days, whether outdoors or indoors without air conditioning. A handheld fan is a portable, electric fan that typically consists of a small motor and one or more blades. They are generally lightweight and can be easily carried in a bag or held in the hand.

[0003] The current fan module uses a motor to drive the air flow to blow directly out of the fan cover. The air flow formed in this way is dispersed, the wind force is insufficient, and the cooling experience is poor. Utility Model Content

[0004] The embodiments of the present invention provide a fan module and a fan to solve the problems of dispersed airflow, insufficient wind force and poor cooling experience in the prior art.

[0005] The utility model discloses a fan module, comprising a wind-driving member, a first wind tube, and a second wind tube; the second wind tube is mounted on one end of the first wind tube, and the first wind tube and the second wind tube are both axially connected; the wind-driving member is mounted in the first wind tube and is used to drive airflow from the first wind tube to the second wind tube; a plurality of first wind-cutting blades are arranged in the first wind tube between the wind-driving member and the second wind tube, and the plurality of first wind-cutting blades are arranged at intervals around the axis of the first wind tube to separate a plurality of first rectifying channels;

[0006] A plurality of second air cutting blades are arranged at intervals around the axis of the second air duct in the second air duct, and the plurality of second air cutting blades separate a plurality of second rectifying channels; the plurality of second air cutting blades are arranged parallel to the axis of the second air duct and are straight.

[0007] Optionally, a second connecting base is provided in the second air duct; the axis of the second connecting base coincides with the axis of the second air duct; one end of the plurality of second air cutting blades is connected to the second connecting base, and the other end is connected to the inner wall of the second air duct.

[0008] Optionally, the second connecting base is provided with a first concave cavity which is open on a side away from the first air duct.

[0009] Optionally, in the projection of the first air cylinder and the second air cylinder in the radial direction, there is no gap between the second air cutting blade and the first air cutting blade.

[0010] Optionally, the ends of the plurality of first air cutting blades close to the inner wall of the first air duct are tilted in a clockwise or counterclockwise direction;

[0011] The wind-expelling component includes a motor group and a fan blade seat. The motor group is installed in the first air duct. The fan blade seat is sleeved on the motor group. A plurality of fan blades are arranged at intervals on the peripheral wall of the fan blade seat. The plurality of fan blades extend from one side of the fan blade seat to the other side. The inclination direction of the plurality of fan blades is opposite to the inclination direction of the first wind-cutting blade.

[0012] Optionally, the plurality of first air-cutting blades are arranged obliquely in the axial direction of the second air cylinder; and the plurality of fan blades are arranged in an arc-shaped curve in the circumferential direction of the fan blade seat.

[0013] Optionally, a first connecting base is provided in the first air duct; the axis of the first connecting base coincides with the axis of the first air duct; one end of a plurality of first air cutting blades is connected to the first connecting base, and the other end is connected to the inner wall of the first air duct; the motor group is installed on the side of the first connecting base facing away from the second air duct.

[0014] Optionally, the wind-dispelling member includes a connecting wire, and a wire groove is provided on an edge of the first wind tube facing the second wind tube or on an edge of the second wind tube facing the first wind tube;

[0015] The connecting wire passes through the first rectifying channel from the side of the first air cutting piece facing away from the second air duct, and is led out of the first air duct and the second air duct from the wire groove.

[0016] Optionally, a side of the first connecting base facing the second air duct is provided with an embedding groove adapted to the second connecting base;

[0017] In both the first air duct and the second air duct, one of the air ducts is provided with an engaging groove along one side edge facing the other, and the other air duct is provided with an engaging edge along one side edge facing the first air duct.

[0018] The engaging edge is embedded in the engaging groove, and the second connecting base is embedded in the embedding groove.

[0019] The utility model also discloses a fan, comprising the fan module as described above.

[0020] Compared with the prior art, the beneficial effect of the fan module provided by the embodiment of the present invention is that: the fan module of the present invention is provided with a first air duct and a second air duct, wherein the first air duct is provided with a first wind-cutting blade, and the first wind-cutting blade can preliminarily rectify the airflow generated by the wind-driving member, that is, the airflow generated by the wind-driving member is in a messy and scattered state after being driven to the first rectifying channel formed by multiple first wind-cutting blades, and then cut and diverted into multiple relatively concentrated and orderly airflows. Furthermore, a second wind duct is provided with a second wind-cutting blade, and the airflow passing through the first rectifying channel enters the second rectifying channel again, and the airflow is cut and diverted again, making the airflow more concentrated and orderly. The first rectifying channel and the second rectifying channel can provide a flow path of sufficient length for the airflow. On this basis, after two rectifications, the airflow is more concentrated and the wind force is stronger. At the same time, since the second air-cutting blade is arranged parallel to the axis of the second air duct and is straight, it will not cause excessive diversion or obstruction to the airflow in the radial direction of the second air duct during the second rectification. For example, the airflow will not be excessively concentrated in the middle area of ​​the air outlet surface during the second rectification because the second air-cutting blade is bent into an arc shape. In this way, the fan module can output sufficient wind force while maintaining a large enough air outlet area, which can provide a cooler user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1 This is a schematic diagram of a fan module according to an embodiment of the present invention;

[0023] Figure 2 This is another schematic diagram of the fan module according to an embodiment of the present invention;

[0024] Figure 3 This is an exploded schematic diagram of the fan module according to an embodiment of the present invention;

[0025] Figure 4 This is another exploded schematic diagram of the fan module according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the second air duct of an embodiment of the present utility model;

[0027] Figure 6 This is another schematic diagram of the second air duct of the embodiment of the present utility model;

[0028] Figure 7 This is a schematic diagram of the first air duct of an embodiment of the present utility model;

[0029] Figure 8 This is another schematic diagram of the first air duct in an embodiment of the present utility model.

[0030] The reference numerals in the figures are:

[0031] 1. Wind-repelling member; 11. Fan blade seat; 111. Fan blade; 2. First air duct; 21. First wind-cutting blade; 22. First rectifying channel; 23. First connecting base; 231. Embedding groove; 24. Embedding edge; 25. Wire groove; 3. Second air duct; 31. Second wind-cutting blade; 32. Second rectifying channel; 33. Second connecting base; 331. First concave cavity; 34. Embedding groove. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. Now, in conjunction with the accompanying drawings, a detailed description of the preferred embodiments of the present utility model will be given.

[0033] The present invention provides a fan module. Figures 1 to 6 As shown, the fan module includes an air-expelling member 1, a first air tube 2 and a second air tube 3. The second air tube 3 is installed on one end of the first air tube 2, and the first air tube 2 and the second air tube 3 are both axially connected. The air-expelling member 1 is installed in the first air tube 2 and is used to drive the air flow from the first air tube 2 to the second air tube 3. In the first air tube 2, a plurality of first air-cutting blades 21 are arranged between the air-expelling member 1 and the second air tube 3, and the plurality of first air-cutting blades 21 are arranged at intervals around the axis of the first air tube 2 to separate a plurality of first rectifying channels 22.

[0034] A plurality of second air cutting blades 31 are arranged at intervals around the axis of the second air duct 3 in the second air duct 3 , and the plurality of second air cutting blades 31 separate a plurality of second rectifying channels 32 ; the plurality of second air cutting blades 31 are arranged parallel to the axis of the second air duct 3 and are straight.

[0035] The fan module of the present invention is provided with a first air duct 2 and a second air duct 3, wherein the first air duct 2 is provided with a first wind-cutting blade 21, and the first wind-cutting blade 21 can preliminarily rectify the airflow generated by the wind-driving member 1, that is, the airflow generated by the wind-driving member 1 is in a messy and scattered state after being driven to generate the airflow, and is cut and diverted into multiple relatively concentrated and orderly airflows after being blown to the first rectifying channel 22 formed by multiple first wind-cutting blades 21. Furthermore, a second wind duct 3 is provided with a second wind-cutting blade 31, and the airflow passing through the first rectifying channel 22 enters the second rectifying channel 32 again, and the airflow is cut and diverted again, making the airflow more concentrated and orderly. The first rectifying channel 22 and the second rectifying channel 32 can provide a flow path of sufficient length for the airflow. On this basis, after two rectifications, the airflow is more concentrated and the wind force is stronger. At the same time, since the second air-cutting blade 31 is arranged parallel to the axis of the second air duct 3 and is straight, it will not cause excessive diversion or obstruction to the airflow in the radial direction of the second air duct 3 during the second rectification. For example, the airflow will not be excessively concentrated in the middle area of ​​the air outlet surface during the second rectification because the second air-cutting blade 31 is bent into an arc shape. In this way, the fan module can output sufficient wind force while maintaining a large enough air outlet area, which can provide a cooler user experience.

[0036] Specifically, if Figure 5 As shown, a second connecting base 33 is provided in the second air duct 3; the axis of the second connecting base 33 coincides with the axis of the second air duct 3; one end of a plurality of second air cutting blades 31 is connected to the second connecting base 33, and the other end is connected to the inner wall of the second air duct 3. The provision of the second connecting base 33 facilitates the connection and provision of the second air cutting blades 31. The plurality of second air cutting blades 31 are respectively connected to the second connecting base 33 and the inner wall of the second air duct 3 at their two ends to limit a plurality of second rectifying channels 32. The second connecting base 33 can be cylindrical, which can reduce wind resistance, and at the same time make the distance from the side wall of the second connecting base 33 to the inner wall of the second air duct 3 equal. The height of the first air cutting blade 21 is equal to the height of the second connecting base 33, while the heights of the first air cutting blade 21 and the second connecting base 33 can be slightly smaller than the height of the second air duct 3.

[0037] Furthermore, if Figure 4 As shown, the second connecting base 33 is provided with a first concave cavity 331 on the side facing away from the first air duct 2. This solution reduces the weight of the second air duct 3 by providing the first concave cavity 331 on the second connecting base 33. Furthermore, since the first concave cavity 331 is provided on the side of the second connecting base 33 facing away from the first air duct 2, airflow is less likely to flow into the first concave cavity 331, causing airflow turbulence, affecting wind force, and increasing noise. Specifically, the first concave cavity 331 is a cylindrical cavity, and the second connecting base 33 is cylindrical in shape as a whole.

[0038] Furthermore, in the radial projection of the first air duct 2 and the second air duct 3, there is no gap between the second air cutting blade 31 and the first air cutting blade 21. In this solution, in the radial projection of the first air duct 2 and the second air duct 3, there is no gap between the second air cutting blade 31 and the first air cutting blade 21. After exiting the first rectifying channel 22, the airflow directly enters the second rectifying channel 32, avoiding disturbance of the airflow at the gap and ensuring orderly and stable airflow.

[0039] Specifically, if Figure 7 and Figure 8 As shown, a plurality of first wind-cutting blades 21 are arranged to be tilted in a clockwise or counterclockwise direction near one end of the inner wall of the first air duct 2. The wind-repelling member 1 includes a motor group and a fan blade seat 11, the motor group is installed in the first air duct 2, the fan blade seat 11 is sleeved on the motor group, and a plurality of fan blades 111 are arranged on the peripheral wall of the fan blade seat 11 at intervals, and the plurality of fan blades 111 extend from one side of the fan blade seat 11 to the other side, and the tilt direction of the plurality of fan blades 111 is opposite to the tilt direction of the first wind-cutting blades 21. The tilt direction of the fan blades 111 is opposite to the tilt direction of the first wind-cutting blades 21, so that when the motor group rotates, more airflow can be driven into the first rectifying channel 22. More specifically, in one embodiment, based on the side where the second air duct 3 is located, the first wind-cutting blades are arranged to be tilted in the counterclockwise direction, and the fan blades 111 are arranged to be tilted in the clockwise direction.

[0040] Specifically, the motor group generally includes a stator and a rotor, and the fan blade seat 11 is mounted on the rotor. The rotation of the rotor drives the fan blade seat 11 to rotate. The specific setting of the motor group can adopt conventional technology and will not be repeated here.

[0041] Furthermore, the plurality of first air cutting blades 21 are arranged obliquely in the axial direction of the second air duct 3, that is, the first air cutting blades 21 are staggered at the upper and lower sides, which can guide the airflow and guide the airflow more quickly and more concentratedly to the second air duct 3. The plurality of blades 111 are arranged in an arc shape in the circumferential direction of the blade seat 11, which can drive more airflow to the first rectifying channel 22.

[0042] Furthermore, a first connecting base 23 is provided in the first air duct 2; the axis of the first connecting base 23 coincides with the axis of the first air duct 2; one end of a plurality of first air cutting blades 21 is connected to the first connecting base 23, and the other end is connected to the inner wall of the first air duct 2; the motor unit is mounted on the side of the first connecting base 23 facing away from the second air duct 3. The provision of the first connecting base 23 facilitates the connection of the first air cutting blades 21.

[0043] Further, combined with Figure 1As shown, the wind-expelling part 1 includes a connecting wire, and a wire groove 25 is provided on the edge of one side of the first air tube 2 facing the second air tube 3 or on the edge of the one side of the second air tube 3 facing the first air tube 2. The connecting wire passes through the first rectifying channel 22 from the side of the first wind-cutting blade 21 facing away from the second air tube 3, and is led out from the wire groove 25 to the outside of the first air tube 2 and the second air tube 3. Through the wire groove 25 and the original first rectifying channel 22, the connecting wire can be conveniently led to the outside of the first air tube 2 and the second air tube 3. Specifically, the connecting wire is electrically connected to the circuit board of the motor group, and the stator of the motor group is electrically connected to the circuit board. After being led out, the connecting wire is further electrically connected to the main circuit board, which will not be repeated here.

[0044] Furthermore, if Figure 4 、 Figure 5 and Figure 7 As shown, the first connecting base 23 is provided with an embedding groove 231 that is compatible with the second connecting base 33 on the side facing the second air duct 3. One of the first air duct 2 and the second air duct 3 has an embedding groove 34 formed around its edge facing the other, and the other has an embedding edge 24 formed around its edge facing the other. The embedding edge 24 is embedded in the embedding groove 34, and the second connecting base 33 is embedded in the embedding groove 231. By embedding the embedding groove 231 and the embedding edge 24, as well as the second connecting base 33 being embedded in the embedding groove 231, the assembly convenience and installation stability between the first air duct 2 and the second air duct 3 can be improved. The first air duct 2 and the second air duct 3 can be further bonded by glue.

[0045] The utility model also discloses a fan, comprising the fan module as described above. The fan has the fan module as described above and has the same technical effects as the fan module, which will not be described in detail here.

[0046] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A fan module, characterized in that: The invention comprises a wind-repelling member, a first wind tube, and a second wind tube; the second wind tube is installed on one end of the first wind tube, and the first wind tube and the second wind tube are both axially connected; the wind-repelling member is installed in the first wind tube and is used to drive the air flow from the first wind tube to the second wind tube; a plurality of first wind-cutting blades are provided in the first wind tube between the wind-repelling member and the second wind tube, and the plurality of first wind-cutting blades are arranged at intervals around the axis of the first wind tube to separate a plurality of first rectifying channels; A plurality of second air cutting blades are arranged at intervals around the axis of the second air duct in the second air duct, and the plurality of second air cutting blades separate a plurality of second rectifying channels; the plurality of second air cutting blades are arranged parallel to the axis of the second air duct and are straight.

2. The fan module according to claim 1, wherein: A second connecting base is provided in the second air duct; the axis of the second connecting base coincides with the axis of the second air duct; one end of a plurality of second air cutting blades is connected to the second connecting base, and the other end is connected to the inner wall of the second air duct.

3. The fan module according to claim 2, characterized in that: The second connecting base is provided with a first concave cavity which is open at a side away from the first air duct.

4. The fan module according to claim 1, wherein: In the projection of the first air cylinder and the second air cylinder in the radial direction, there is no gap between the second air cutting blade and the first air cutting blade.

5. The fan module according to claim 2 or 3, characterized in that: The ends of the plurality of first air cutting blades close to the inner wall of the first air duct are tilted in a clockwise or counterclockwise direction; The wind-expelling component includes a motor group and a fan blade seat. The motor group is installed in the first air duct. The fan blade seat is mounted on the motor group. A plurality of fan blades are arranged at intervals on the peripheral wall of the fan blade seat. The plurality of fan blades extend from one side of the fan blade seat to the other side. The inclination direction of the plurality of fan blades is opposite to the inclination direction of the first wind-cutting blade.

6. The fan module according to claim 5, characterized in that: The plurality of first air cutting blades are tilted in the axial direction of the second air duct; and the plurality of fan blades are curved in an arc shape in the circumferential direction of the fan blade seat.

7. The fan module according to claim 5, characterized in that: A first connecting base is provided in the first air duct; the axis of the first connecting base coincides with the axis of the first air duct; one end of each of the first air cutting blades is connected to the first connecting base, and the other end is connected to the inner wall of the first air duct; the motor group is installed on the side of the first connecting base facing away from the second air duct.

8. The fan module according to any one of claims 1 to 4, characterized in that: The wind-dispelling member includes a connecting wire, and a wire groove is provided on an edge of the first wind tube facing the second wind tube or on an edge of the second wind tube facing the first wind tube; The connecting wire passes through the first rectifying channel from the side of the first air cutting blade facing away from the second air duct, and is led out of the first air duct and the second air duct through the wire groove.

9. The fan module according to claim 7, characterized in that: A recessed groove adapted to fit the second connecting base is formed on a side of the first connecting base facing the second air duct; One of the first air duct and the second air duct has an engaging groove around its edge facing the other, and the other has an engaging edge around its edge facing the first air duct; The embedding edge is embedded in the embedding groove, and the second connecting base is embedded in the embedding groove.

10. A fan, characterized in that: The invention comprises a fan module according to any one of claims 1 to 9.

Images