Air guide device, fan device, electrical equipment and method

Abstract

The present invention provides an air guide device, a fan device, an electrical device and a method, which relate to the technical field of fresh air systems. The position of the fan guide structure is adjusted at different gears to adjust the air suction range at different gears and introduce more wind into the air suction range of the fan. The device includes a fan guide structure for guiding the flow of gas, a drive structure and a controller, wherein the fan guide structure is connected to the drive structure, the fan guide structure is arranged on the air inlet side of the fan, the drive structure is connected to the controller, and under the control of the controller, the drive device can adjust the position of the fan guide structure to increase the air intake of the fan at different air supply gears. The air guide device also includes a motor guide structure, which is arranged on one side of a motor connected to the fan, and the motor guide structure is used to guide air to the motor. The present invention is used to correct the wind field and dissipate heat from the motor.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh air systems, and in particular to an air guide device, a fan device, electrical equipment and a method. Background Art

[0002] At present, the fans in the existing fresh air ventilation machines on the market are all driven by motors. The motors will generate a lot of heat when working. Since the wind field in the machine needs to be smooth, it is not easy to add other heat dissipation devices, which will cause the motor to be damaged or destroyed if it overheats. Another problem is that the wind field of the fresh air fan becomes worse due to gear adjustment. When the air output of the corresponding gear of the fresh air fan is not reached, the fan speed is usually increased to compensate for the air output. Summary of the invention

[0003] The object of the present invention is to provide an air guide device, a fan device, an electrical device and a method, which adjust the position of the fan guide structure at different gears to adjust the air suction range at different gears and introduce more air into the air suction range of the fan. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides an air guide device, comprising a fan guide structure for guiding gas flow, a drive structure and a controller, wherein the fan guide structure is connected to the drive structure, the fan guide structure is arranged on the air inlet side of the fan, the drive structure is connected to the controller, and under the control of the controller, the drive device can adjust the position of the fan guide structure to increase the air intake volume of the fan at different air supply gears.

[0006] Furthermore, the fan is a centrifugal fan, and the fan guide structure is arranged at one end of the fan, or the fan guide structure is arranged at both ends of the fan.

[0007] Furthermore, the wind guiding device also includes a frame, and the side of the fan guide structure away from the fan axis is connected to the frame, and a guide surface is formed on the fan guide structure, and the guide surface faces the fan.

[0008] Furthermore, one end of the fan is connected to the motor, a motor bracket of the motor forms an installation space, and the frame is located in the installation space and fixedly connected to the motor bracket.

[0009] Furthermore, the fan guide structure is in the shape of a guide plate.

[0010] Furthermore, the air guiding device also includes a motor flow guiding structure, which is arranged on one side of the motor connected to the fan, and is used to guide air to the motor.

[0011] Furthermore, the motor flow guiding structure is in the shape of a flow guiding sheet, and the motor flow guiding structure extends along the radial direction of the motor.

[0012] Further, the motor flow guide structure is one and is connected to a frame connected to the fan flow guide structure; or, the motor flow guide structure is more than two and is distributed along the circumferential direction of the motor.

[0013] The present invention provides a fan device, comprising the wind guiding device.

[0014] The present invention provides an electrical device, comprising the fan device.

[0015] Furthermore, the electrical equipment is a fresh air ventilator, and the fan guide structure of the fan device is located on a side close to the heat exchanger of the electrical equipment.

[0016] The present invention provides a method for the wind field self-correction of the wind guide device, comprising the following contents: identifying the air supply gear when the equipment is running; adjusting the position of the fan guide structure to increase the air intake of the fan at different air supply gears.

[0017] Furthermore, the following content is included: when the air supply gear is lowered, the free end of the fan guide structure rotates in a direction close to the fan.

[0018] The present invention provides a wind guide device, including a fan guide structure for guiding gas flow, a drive structure and a controller, wherein the fan guide structure is connected to the drive structure, the fan guide structure is arranged on the air inlet side of the fan, the drive structure is connected to the controller, and under the control of the controller, the drive device can adjust the position of the fan guide structure to increase the air intake of the fan at different air supply gears. The position of the fan guide structure is adjusted at different gears, and the air suction range at different gears is adjusted to introduce more wind into the air suction range of the fan to correct the wind field.

[0019] The preferred technical solution of the present invention can at least produce the following technical effects:

[0020] The air guide device also includes a motor guide structure, which is arranged on one side of the motor connected to the fan, and is used to guide air to the motor. Driven by the fan, air flows in from both ends of the fan. By adding the motor guide structure, part of the air flow can flow along the motor guide structure to the motor, thereby achieving heat dissipation of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a structural schematic diagram of a fan device provided by an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0024] Figure 3 is a schematic top view of a fan device provided by an embodiment of the present invention;

[0025] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0026] Figure 5 It is a flow chart of adjusting the angle of the fan guide structure provided by an embodiment of the present invention.

[0027] In the figure, 1- fan guide structure; 11- guide surface; 2- fan; 3- frame; 4- motor; 5- motor bracket; 6- motor guide structure; 7- heat exchanger. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] The present invention provides a wind guide device, including a fan guide structure 1 for guiding gas flow, a drive structure and a controller, wherein the fan guide structure 1 is connected to the drive structure, the fan guide structure 1 is arranged on the air inlet side of the fan 2, the drive structure is connected to the controller, and under the control of the controller, the drive device can adjust the position of the fan guide structure 1 to increase the air intake of the fan 2 at different air supply gears. For example, the device has three air supply gears and the three air supply gears are high, medium and low, respectively. When the device is in high gear, the fan guide structure 1 is in position one, when the device is in medium gear, the controller controls the drive structure to move, so that the drive structure drives the fan guide structure 1 to adjust to position two, and when the device is in low gear, the controller controls the drive structure to move, so that the drive structure drives the fan guide structure 1 to adjust to position three. The function of the fan guide structure 1 is to guide the airflow (mainly the airflow that does not flow to the fan) to the fan 2, thereby increasing the air intake of the fan. The reason why the position of the fan guide structure 1 is adjusted at different gears is that the fan speed is different at different gears, and the fan's ability to absorb airflow is also different. The fan guide structure 1 adjusts the suction range at different gears by adjusting the angle, thereby introducing more wind into the fan's suction range.

[0031] See also Figure 1 The fan 2 is a centrifugal fan, and a fan guide structure 1 is provided at one end of the fan 2, or a fan guide structure 1 is provided at both ends of the fan 2. Preferably, a fan guide structure 1 is provided at both ends of the fan 2 to increase the air intake of the fan.

[0032] See also Figure 2 The wind guide device also includes a frame 3, and the side of the fan guide structure 1 away from the axis of the fan 2 is connected to the frame 3. The fan guide structure 1 is formed with a guide surface 11, and the guide surface 11 faces the fan 2. Regarding the shape of the fan guide structure 1, the fan guide structure 1 is preferably in the shape of a guide sheet. Figure 2 , which simply illustrates the fan guide structure 1.

[0033] For example, the device has three air supply gears, and the three air supply gears are high, medium and low. Figure 2 ,think Figure 2 The position of the medium fan guide structure 1 is the position when the equipment is in a high gear (i.e., position one). When the airflow along the radial direction of the fan flows toward the fan guide structure 1, it will be guided to the fan 2; when the equipment is adjusted to the medium gear, the fan guide structure 1 will rotate along the needle and rotate at a set angle to reach position two. When the equipment is adjusted to a low gear, the fan guide structure 1 will rotate along the needle from position two and rotate at a set angle to reach position three.

[0034] If the position of the fan guide structure 1 is fixed and always in position 1, when the device is in a high gear, the airflow velocity is fast, and the airflow along the radial direction of the fan will be directed to the fan 2 when it flows to the fan guide structure 1; when the device is in a low gear, the airflow velocity is slow, and the airflow along the radial direction of the fan will flow to the fan guide structure 1. Although the airflow direction will change when it flows to the fan guide structure 1, the flow direction of part of the airflow will not always be along the extension direction of the guide surface 11, and thus, the part of the airflow may not flow to the fan 2. Therefore, the position of the fan guide structure is set to be adjustable to adapt to the airflow at different gears, so as to increase the air volume entering the fan at different gears. The fan guide structure 1 adjusts the suction range at different gears by adjusting the angle, and introduces more air into the suction range of the fan.

[0035] The connection between the frame 3 and the fan guide structure 1 can be as follows: the frame 2 includes a support frame and a rotating shaft, the rotating shaft is rotatably connected to the support frame, the support frame is fixed in position, the rotating shaft is fixedly connected to the fan guide structure 1, the driving structure is a driving motor, and the output shaft of the driving structure is connected to the rotating shaft. When the driving structure rotates, it drives the rotating shaft and the fan guide structure 1 fixed on the rotating shaft to rotate.

[0036] The installation of the frame 3 is described as follows: one end of the fan 2 is connected to the motor 4, the motor bracket 5 of the motor 4 forms an installation space, and the frame 3 is located in the installation space and fixedly connected to the motor bracket 5. The frame 3 can be detachably connected to the motor bracket 5 by screws or bolts.

[0037] A fan device includes a fan, a motor and the above-described wind guide device. The wind guide device can correct the wind field, and the position of the fan guide structure 1 of the wind guide device is adjustable. The position of the fan guide structure 1 is different at different gears, thereby increasing the air supply of the fan at different gears.

[0038] An electrical device includes the fan device provided by the present invention. The electrical device is a fresh air ventilator, and the fan guide structure 1 of the fan device is located on a side close to the heat exchanger 7 of the electrical device. Figure 1 and Figure 2 , indicating the position of the fan guide structure 1. When the fan 2 is in operation, the airflow flows to the fan 2 through the heat exchanger 7, and the fan guide structure 1 guides the airflow (mainly the airflow that does not flow to the fan) to flow to the fan 2, thereby increasing the air intake of the fan. The position of the fan guide structure 1 of the air guide device is adjustable, and the position of the fan guide structure 1 is different at different gears, thereby increasing the air supply of the fan at different gears.

[0039] A method for self-correcting a wind field using an air guide device includes the following contents: identifying the air supply gear position when the equipment is running; adjusting the position of a fan guide structure 1 to increase the air intake of a fan 2 at different air supply gear positions.

[0040] Specifically, when the air supply gear is lowered, the free end of the fan guide structure 1 rotates toward the direction approaching the fan 2 .

[0041] For example, the equipment has three air supply gears, which are high gear, medium gear and low gear respectively. When the equipment starts running, it starts at high gear. At this time, the fan guide structure 1 is in the initial position (position one). When the equipment has a gear adjustment, for example, when adjusted to low gear, the fan guide structure 1 will rotate along the needle and rotate the set angle to reach position three; when adjusted to medium gear, the position of the fan guide structure 1 is adjusted to position two; when adjusted to high gear, the fan guide structure 1 is in position one.

[0042] Embodiment 2:

[0043] Different from the first embodiment, the air guide device further includes a motor guide structure 6 , which is arranged on one side of the motor 4 connected to the fan 2 , and is used to guide air to the motor 4 .

[0044] At present, the fans in the existing fresh air ventilators on the market are all driven by motors. The motors generate a lot of heat when working. Since the wind field in the machine needs to be smooth, it is not easy to add other heat dissipation devices, which leads to the situation that if the motor is overheated, it will be damaged or destroyed. Based on this, the air guide device provided by the present invention also includes a motor guide structure 6, which can achieve heat dissipation of the motor 4 by guiding air to the motor 4 to protect the motor.

[0045] The motor flow guiding structure 6 is in the shape of a flow guiding sheet, and the motor flow guiding structure 6 extends along the radial direction of the motor 4. The structure of the motor flow guiding structure 6 is simple. Figure 2 , schematically showing the motor flow guide structure 6. Under the drive of the fan, air flows in from both ends of the fan. By adding the motor flow guide structure 6, part of the air flow can flow along the motor flow guide structure 6 to the motor 4, thereby achieving heat dissipation of the motor 4.

[0046] As an optional implementation, there is one motor flow guide structure 6 connected to the frame 3 connected to the fan flow guide structure 1 ; or, there are more than two motor flow guide structures 6 distributed along the circumferential direction of the motor 4 .

[0047] Regarding "the motor flow guide structure 6 is a frame 3 connected to the fan flow guide structure 1", the specific description is as follows: the frame 3 close to the motor 4 side includes a fixed shaft, the fixed shaft is fixedly connected to the support frame of the frame, the fixed shaft is arranged parallel to and close to the rotating shaft, and the motor flow guide structure 6 is fixed on the fixed shaft.

[0048] See also Figure 2 and Figure 5When the fan guide structure 1 is in position one, the angle between the fan guide structure 1 and the motor guide structure 6 is about 30°. When the fan guide structure 1 is in position two, the angle between the fan guide structure 1 and the motor guide structure 6 is about 45°. When the fan guide structure 1 is in position three, the angle between the fan guide structure 1 and the motor guide structure 6 is about 60°.

[0049] Embodiment 3:

[0050] At present, the fans in the existing fresh air ventilators on the market are all driven by motors. The motors will generate a lot of heat when working. Since the wind field in the machine needs to be smooth, it is not easy to add other heat dissipation devices, which will cause the motor to be damaged or destroyed if it overheats. Based on this, the present invention provides a motor guide structure, in which the motor guide structure 6 is arranged on one side of the motor 4 connected to the fan 2, and the motor guide structure 6 is used to guide the wind to the motor 4. Driven by the fan, the airflow enters from both ends of the fan. By adding the motor guide structure 6, part of the airflow can flow along the motor guide structure 6 to the motor 4, thereby achieving heat dissipation of the motor 4.

[0051] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An air guide device for a fresh air ventilator, characterized in that: It comprises a fan flow guiding structure (1) for guiding gas flow, a driving structure and a controller, wherein: The fan guide structure (1) is connected to the drive structure, the fan guide structure (1) is arranged on the air inlet side of the fan (2), the drive structure is connected to the controller, and under the control of the controller, the drive structure can adjust the position of the fan guide structure (1) to increase the air inlet volume of the fan (2) at different air supply gears; The air guide device for the fresh air ventilator further comprises a frame (3); the fan guide structure (1) is connected to the frame (3) at a side away from the axis of the fan (2); a guide surface (11) is formed on the fan guide structure (1); and the guide surface (11) faces the fan (2).

2. The air guide device for a fresh air ventilator according to claim 1, characterized in that: The fan (2) is a centrifugal fan, and the fan flow guide structure (1) is arranged at one end of the fan (2), or the fan flow guide structure (1) is arranged at both ends of the fan (2).

3. The air guide device for a fresh air ventilator according to claim 1, characterized in that: One end of the fan (2) is connected to the motor (4), a motor bracket (5) of the motor (4) forms an installation space, and the frame (3) is located in the installation space and is fixedly connected to the motor bracket (5).

4. The air guide device for a fresh air ventilator according to claim 1, characterized in that: The fan flow guide structure (1) is in the shape of a flow guide sheet.

5. The air guide device for a fresh air ventilator according to any one of claims 1 to 4, characterized in that: The air guide device for the fresh air ventilator further comprises a motor guide structure (6), wherein the motor guide structure (6) is arranged on one side of the motor (4) connected to the fan (2), and the motor guide structure (6) is used to guide air to the motor (4).

6. The air guide device for a fresh air ventilator according to claim 5, characterized in that: The motor flow guiding structure (6) is in the shape of a flow guiding sheet, and the motor flow guiding structure (6) extends along the radial direction of the motor (4).

7. The air guide device for a fresh air ventilator according to claim 5, characterized in that: The motor flow guide structure (6) is one and is connected to the frame (3) connected to the fan flow guide structure (1); or, the motor flow guide structure (6) is more than two and is distributed along the circumferential direction of the motor (4).

8. A fan device for a fresh air ventilator, characterized in that: It comprises the air guiding device for a fresh air ventilator as described in any one of claims 1-7.

9. A fresh air ventilator, characterized in that: Including the air guide device for the fresh air ventilator as described in claim 8.

10. The fresh air ventilator according to claim 9, characterized in that: The fan flow guide structure (1) of the fan device is located on a side close to the fresh air ventilator heat exchanger (7).

11. A method for self-correcting a wind field by using the wind guide device for a fresh air ventilator according to any one of claims 1 to 7, characterized in that: Includes the following: Identify the air supply position of the fresh air ventilator when it is running; The position of the fan guide structure (1) of the fresh air ventilator according to any one of claims 9 to 10 is adjusted so as to increase the air intake volume of the fan (2) at different air supply gears.

12. The method according to claim 11, characterized in that Also included are the following: When the air supply gear is lowered, the free end of the fan flow guide structure (1) rotates in a direction close to the fan (2).

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