Self-adaptive adjusting axial flow fan

Abstract

The utility model discloses a self-adaptive adjusting axial flow fan which is characterized in that a shell is provided with a cavity with two through ends, one end of the cavity is an air inlet, and the other end of the cavity is an air outlet; the impeller assembly is arranged on the side, close to the air outlet, in the cavity, the driving assembly is fixed to the side, close to the air inlet, in the cavity through a motor fixing support, the air pressure and air quantity information collecting assembly is arranged on the side, close to the air inlet, in the cavity, and the power interface panel is arranged on the surface of the shell. The power supply interface panel is used for being connected with an external power supply to provide a working power supply for the driving assembly, the wind power and air volume information acquisition assembly and the controller, and the wind power and air volume information acquisition assembly transmits acquired wind power and air volume information at the air inlet to the controller; and the controller adjusts the working state of the driving assembly according to the received information, so that automatic adjustment and accurate adjustment of the axial flow fan are achieved, and the technical problems that in the prior art, the axial flow fan needs to be manually adjusted, and accurate adjustment cannot be achieved are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of axial flow fans, in particular to an axial flow fan with self-adaptive adjustment. Background Art

[0002] As one of the general equipment used for gas exchange between the inside and outside in various life and office scenarios, the axial flow fan has become more and more diverse in its usage scenarios. In the related art, the axial flow fan is used to discharge indoor gas to the outside to achieve gas circulation. In the related art, after the axial flow fan is installed, it is usually in a fixed mode or requires the operator to manually adjust the working mode, and its impeller works at a fixed speed. However, under different environmental conditions, it is required that the wind pressure and air volume at the air inlet of the axial flow fan reach the expected value when the axial flow fan is working to meet the exhaust requirements. At this time, the traditional axial flow fan needs to be manually adjusted, and the adjustment of the axial flow fan depends entirely on the subjective judgment of the relevant operator, and it is impossible to adjust the wind pressure and air volume of the axial flow fan to the expected value when it is working.

[0003] Therefore, in view of the technical problems that the above-mentioned axial flow fan needs to be manually adjusted and cannot be accurately adjusted to the corresponding desired working state, those skilled in the art need to improve it to solve the above-mentioned technical problems. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an axial flow fan with adaptive adjustment to solve the technical problems in the related art that axial flow fans require manual adjustment and the adjustment is not accurate enough.

[0005] In a first aspect, an embodiment of the present invention provides an axial flow fan with adaptive adjustment, comprising:

[0006] The housing is provided with a cavity passing through at both ends, one end of the cavity is an air inlet, and the other end of the cavity is an air outlet;

[0007] an impeller assembly, disposed in the cavity and close to one side of the air outlet;

[0008] A drive assembly is fixed to a side of the cavity near the air inlet through a motor fixing bracket, and the drive assembly is transmission-connected to the impeller assembly so that the drive motor drives the impeller assembly to work;

[0009] A wind pressure and air volume information collection component is provided in the cavity and close to one side of the air inlet, and is used to collect wind pressure and air volume information at the air inlet;

[0010] a controller, electrically connected to the driving component and the wind pressure and air volume information acquisition component, respectively, for receiving the wind pressure and air volume information and controlling the working state of the driving component according to the wind pressure and air volume information;

[0011] A power interface panel is provided on the surface of the housing and is used to connect to an external power source to provide working power for the drive component, the wind pressure and air volume information acquisition component and the controller.

[0012] The adaptively adjustable axial flow fan of the embodiment of the utility model has at least the following beneficial effects:

[0013] An adaptively adjustable axial flow fan in an embodiment of the present invention includes a housing, an impeller assembly, a drive assembly, a wind pressure and air volume information collection assembly, a controller and a power interface panel; wherein the housing is provided with a cavity passing through two ends, one end being an air inlet and the other end being an air outlet; the impeller assembly is provided on a side of the cavity close to the air outlet, the drive assembly is fixed to a side of the cavity close to the air inlet through a motor fixing bracket, the wind pressure and air volume information collection assembly is provided on a side of the cavity close to the air inlet, and the power interface panel is provided on the surface of the housing; the power interface panel is used to connect to an external power supply. The source provides working power for the driving component, the wind pressure and air volume information collection component and the controller. When the driving component is working, it drives the impeller to rotate to realize the exhaust function of the axial flow fan. At the same time, the wind pressure and air volume information collection component transmits the collected wind pressure and air volume information at the air inlet to the controller. The controller adjusts the working state of the driving component according to the received information to realize automatic and precise adjustment of the axial flow fan, solving the technical problems in related technologies that axial flow fans need manual adjustment and cannot achieve precise adjustment; and provides an axial flow fan that can be automatically and precisely adjusted.

[0014] According to some other embodiments of the adaptively adjustable axial flow fan of the present invention, the wind pressure and air volume information acquisition component includes an air volume sensor, a wind pressure sensor and a sensor mounting bracket;

[0015] The sensor mounting bracket is hoisted at the top position in the cavity;

[0016] The air volume sensor and the wind pressure sensor are both installed on the sensor mounting bracket.

[0017] According to some other embodiments of the adaptively adjustable axial flow fan of the present invention, the wind pressure and air volume information acquisition component further includes a rubber shock-isolating support;

[0018] The rubber vibration isolation support is fixed on the sensor mounting bracket, and the air volume sensor and the wind pressure sensor are mounted and fixed on the rubber vibration isolation support.

[0019] According to other embodiments of the present invention, the self-adaptive axial flow fan further comprises a blade adjustment drive assembly; the impeller assembly comprises a hub and a plurality of blades, the plurality of blades being arranged at equal intervals around the hub;

[0020] In which, the fan blade adjustment drive component is respectively connected to the multiple fan blade transmissions, and the fan blade adjustment drive component is respectively electrically connected to the power interface panel and the controller. The controller controls the working state of the fan blade drive component according to the received wind pressure and air volume information to control the rotation angle of the multiple fan blades.

[0021] According to some other embodiments of the adaptively adjustable axial flow fan of the present invention, the blade adjustment drive assembly includes a blade adjustment motor and a transmission adjustment structure;

[0022] The fan blade adjustment motor is electrically connected to the controller, and the fan blade adjustment motor is transmission-connected to one end of the transmission adjustment structure, and the other end of the transmission adjustment structure is fixedly connected to the plurality of fan blades.

[0023] According to some other embodiments of the adaptively adjustable axial flow fan of the present invention, the drive assembly includes a drive motor and a transmission shaft;

[0024] The driving motor is electrically connected to the controller and the power interface panel respectively. The driving motor is connected to one end of the transmission shaft, and the other end of the transmission shaft is connected to the impeller assembly.

[0025] According to other embodiments of the adaptively adjustable axial flow fan of the present invention, the controller is arranged in the power interface panel; the controller is also provided with a wireless transmission module, and the wireless transmission module is used to receive external control signals to realize control of the working state of the drive component. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of a specific embodiment of an axial flow fan with adaptive adjustment according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of another specific embodiment of an axial flow fan with adaptive adjustment according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic structural diagram of a specific embodiment of the present invention, in which a transmission adjustment structure and fan blades are connected in an adaptively adjustable axial flow fan. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the concept and technical effects of the present invention in conjunction with the embodiments to fully understand the purpose, features, and effects of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without inventive effort are also within the scope of protection of the present invention.

[0030] In the description of the embodiments of this utility model, if the word "several" is mentioned, it means more than one; if the word "plurality" is mentioned, it means more than two; if the word "greater than," "less than," or "exceeds," it should be understood as excluding the number itself; if the word "above," "below," or "within" is mentioned, it should be understood as including the number itself. If the word "first" or "second" is mentioned, it should be understood as distinguishing technical features and should not be understood as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0031] Reference Figure 1 and Figure 2, the embodiment of the utility model provides an axial flow fan with adaptive adjustment, which includes a housing 100, a drive assembly 200, a wind pressure and air volume information collection assembly 300, a power interface panel 400, an impeller assembly 500 and a controller (not shown in the figure); wherein the housing 100 is provided with a cavity passing through both ends, one end of the cavity is an air inlet, and the other end of the cavity is an air outlet, that is, when the axial flow fan is working, the gas is transmitted from the air inlet through the cavity to the air outlet to be discharged outward; the drive assembly 200 is fixed to the side of the cavity near the air inlet by the motor fixing bracket 230, and the wind pressure and air volume information collection assembly 300 is provided. The component 300 is disposed on a side of the cavity near the air inlet, the power interface panel 400 is disposed on the outer surface of the housing 100, and the impeller assembly 500 is disposed on a side of the cavity near the air outlet; the drive component 200 is transmission-connected to the impeller assembly 500, the controller is electrically connected to the drive component 200 and the wind pressure and air volume information collection component 300, respectively, and the power interface panel 400 is electrically connected to the drive component 200, the wind pressure and air volume information collection component 300, and the controller, respectively, for connecting to an external power source to provide working power to the drive component 200, the wind pressure and air volume information collection component 300, and the controller. In this embodiment, after the controller controls the drive component 200 to operate, the wind pressure and air volume information collection component 300 transmits the collected wind pressure and air volume information at the air inlet to the controller. The controller determines whether the received wind pressure and air volume information is within a preset wind pressure and air volume range, and then adjusts the working state of the drive component 200 so that when the axial flow fan is in operation, it can operate within the preset wind pressure and air volume range. For example, when the wind pressure and air volume information received by the controller is lower than the preset wind pressure and air volume range value, the working state of the drive component 200 is adjusted, and the rotation speed of the impeller component 500 is increased to adjust the wind pressure and air volume information at the air inlet when the axial flow fan is working to the preset wind pressure and air volume range value; when the wind pressure and air volume information received by the controller is higher than the preset wind pressure and air volume range value, the working state of the drive component 200 is adjusted, and the rotation speed of the impeller component 500 is reduced to modulate the wind pressure and air volume information at the air inlet when the axial flow fan is working to the preset wind pressure and air volume range value.

[0032] Reference Figure 1 In some embodiments, in order to facilitate the installation convenience and installation stability of the adaptively adjustable axial flow fan proposed in the embodiments of the present invention, it also includes a base 600. By providing a plurality of support rods 610 on the base 600 and fixing the housing 100 with the support rods 610, the overall fixation of the axial flow fan is achieved.

[0033] The embodiment of the present invention is an adaptively adjustable axial flow fan, which is provided with a wind pressure and air volume information collection component 300 to feed back the collected wind pressure and air volume information at the air inlet to the controller, and then the controller adaptively adjusts the working state of the driving component 200 according to the received wind pressure and air volume information, thereby realizing automatic adaptive adjustment of the axial flow fan, and through the wind pressure and air volume information collection component 300 to collect the wind pressure and air volume information at the air inlet in real time, realizing precise adjustment of the working state of the driving component 200, solving the technical problems in the related art that the axial flow fan needs manual adjustment and cannot achieve precise adjustment.

[0034] Reference Figure 1 In some embodiments, in order to improve the structural stability of the adaptively adjustable axial flow fan proposed in the embodiment of the present invention, the installation location of the components is reduced. In this embodiment, the controller is arranged in the power interface panel 400. By arranging the controller on the back of the power interface panel 400, the length of the connection line between the controller and the power interface panel 400 can be saved, and the line connecting the controller to the drive component 200 can be consistent with the wiring and routing of the connection line connecting the power interface panel 400 to the drive component 200, and the line connecting the controller to the wind pressure and air volume information acquisition component 300 can be consistent with the wiring and routing of the line connecting the power interface panel 400 to the wind pressure and air volume information acquisition component 300, thereby reducing the overall wiring and routing difficulty of the axial flow fan. In addition, in another embodiment, a wireless transmission module is integrated in the controller, and the wireless transmission module is used to receive an external control signal sent by an external controller, so that the controller can control the working state of the drive component 200 according to the received external control signal. Specifically, the wireless transmission module may include any one of a Bluetooth transmission module and a 4G / 5G wireless transmission module.

[0035] Reference Figure 1In some embodiments, in order to accurately collect wind pressure and air volume information at the air inlet, so as to achieve precise adjustment of the working state of the drive assembly 200 in the axial flow fan, the wind pressure and air volume information collection assembly 300 includes a wind pressure sensor 310, an air volume sensor 320, and a sensor mounting bracket 330. The wind pressure sensor 310 is used to collect wind pressure data information at the air inlet, and the air volume sensor 320 is used to collect air volume data information at the air inlet. To prevent the vibration or heat generated by the operation of the drive assembly 200 from affecting the collection accuracy of the wind pressure sensor 310 and the air volume sensor 320, in this embodiment, the drive assembly 200 is fixed to the lower position in the cavity by the motor fixing bracket 230, and the sensor mounting bracket 330 is hoisted to the top position in the cavity. The wind pressure sensor 310 and the air volume sensor 320 are respectively mounted and fixed on the sensor bracket 330, so that the wind pressure sensor 310 and the air volume sensor 320 are not located in the heat dissipation area of ​​the drive assembly 200, thereby reducing the accuracy of data collection.

[0036] Reference Figure 1 In some embodiments, because the inevitable vibrations caused by the operation of the axial flow fan may affect the accuracy of data collected by the wind pressure sensor 310 and the air volume sensor 320, the wind pressure and air volume information collection assembly 300 in this embodiment further includes a rubber vibration isolation support 340. The rubber vibration isolation support is fixed to the sensor mounting bracket 330. The rubber vibration isolation support 340 is provided with mounting brackets corresponding to the wind pressure sensor 310 and the air volume sensor 320, respectively. Furthermore, by mounting the wind pressure sensor 310 and the air volume sensor 320 on the rubber vibration isolation support, the wind pressure sensor 310 and the air volume sensor 320 can still collect accurate wind pressure data and air volume data even when the axial flow fan is in operation and generates vibrations, thereby avoiding the problem of inaccurate adjustment of the drive assembly 200 due to poor data collection accuracy.

[0037] Reference Figure 1 and Figure 2 In some embodiments, the drive assembly 200 includes a drive motor 210 and a transmission shaft 220, the drive motor 210; the drive motor 210 is fixed to the motor fixing bracket 230 and is fixed in the cavity near the air inlet side, one end of the transmission shaft 220 is connected to the drive motor 210, and the other end of the transmission shaft 220 is connected to the impeller assembly 500, and the drive motor 210 is also electrically connected to the power interface panel 400 and the controller respectively. The power interface panel 400 provides working power for the drive motor 210, and the controller is used to control the start and stop status of the drive motor 210. When the drive motor 210 is started, the impeller 500 is driven to rotate through the transmission shaft 220, thereby putting the axial flow fan into working state.

[0038] Reference Figure 1and Figure 2 In some embodiments, to achieve the ability to adjust the axial flow fan to a preset wind pressure and air volume range, the structure of the impeller assembly 500 of the axial flow fan can be adjusted to achieve adjustable wind pressure and air volume during operation of the axial flow fan. The axial flow fan also includes a blade adjustment drive assembly. The impeller assembly 500 includes a plurality of blades 510 and a hub 520. The plurality of blades 510 are arranged at equal intervals around the hub 520. Then, the hub 520 drives the plurality of blades 510 to rotate under the drive of the drive motor 210. In this embodiment, the blade adjustment drive assembly is respectively connected to the power interface panel 400 and the controller. The power interface panel 400 provides operating power to the blade adjustment drive assembly. The controller controls the blade adjustment drive assembly to adjust the angles of the plurality of blades 510 based on the received wind pressure data and air volume data, thereby achieving adjustment of the wind pressure and air volume during operation of the axial flow fan.

[0039] Reference Figure 3 and Figure 2 In some embodiments, in order to achieve reliable adjustment of the angles of multiple blades 510, the blade adjustment drive assembly in this embodiment includes a blade adjustment motor and multiple transmission adjustment structures 700. Among them, the blade adjustment motor (not shown in the figure) is fixedly arranged in the hub 520, and the blade adjustment motor is transmission-connected to the multiple transmission adjustment structures 700, and the multiple transmission adjustment structures are also used to fix the multiple blades 510. Specifically, in this embodiment, the blade adjustment motor is implemented by a small drive motor (or the blade adjustment motor is the same motor as the drive motor 210 described in the above embodiment), and the small drive motor is electrically connected to the controller and the power interface panel 400 respectively. The power interface panel 400 provides an adaptive working power supply for the small drive motor. The controller is used to control the working state of the small drive motor according to the received wind pressure data information and wind volume data information, and then the small drive motor can realize the rotation control of the transmission adjustment structure 700 according to the control of the controller, and finally adjust the multiple blades 510 to the desired angle position. In certain specific embodiments, the transmission adjustment structure 700 may include a direct-coupling shaft transmission assembly, which is respectively connected and fixed to the small drive motor and the plurality of fan blades 510. The small drive motor drives the direct-coupling shaft transmission assembly to rotate, thereby driving the plurality of fan blades 510 to rotate, ultimately achieving angle adjustment of the plurality of fan blades 510. In this embodiment, the controller's drive of the small drive motor to achieve angle adjustment of the plurality of fan blades 510 can be preset during the axial flow fan manufacturing and testing phase, and is matched with the controller's control of the drive motor 210 in the above-described embodiment. Ultimately, adaptive adjustment of the axial flow fan during operation can be achieved by controlling the operating state of the drive motor 210 and adjusting the angles of the plurality of fan blades 510.

[0040] In summary, the embodiment of the present invention is an axial flow fan with adaptive adjustment. After a wind pressure and air volume collection component 300 is provided to collect wind pressure and air volume information at the air inlet of the axial flow fan and transmit it to the controller, the controller adaptively adjusts the working state of the driving component 200 and the angles of multiple fan blades 510 according to the preset wind pressure and air volume range value, thereby solving the technical problems of manual adjustment and inaccurate adjustment when the axial flow fan needs to be adjusted during operation.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by a person skilled in the art without departing from the spirit of the present invention. In addition, the embodiments of the present invention and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. An axial flow fan with adaptive adjustment, characterized in that: include: The housing is provided with a cavity passing through at both ends, one end of the cavity is an air inlet, and the other end of the cavity is an air outlet; an impeller assembly, disposed in the cavity and close to one side of the air outlet; A drive assembly is fixed to a side of the cavity near the air inlet through a motor fixing bracket, and the drive assembly is transmission-connected to the impeller assembly so that the drive assembly drives the impeller assembly to work when the drive assembly is in operation; A wind pressure and air volume information collection component is provided in the cavity and close to one side of the air inlet, and is used to collect wind pressure and air volume information at the air inlet; a controller, electrically connected to the driving component and the wind pressure and air volume information acquisition component, respectively, for receiving the wind pressure and air volume information and controlling the working state of the driving component according to the wind pressure and air volume information; A power interface panel is provided on the surface of the housing and is used to connect to an external power source to provide working power to the drive component, the wind pressure and air volume information acquisition component, and the controller; The axial flow fan further comprises a blade adjustment drive assembly; the impeller assembly comprises a hub and a plurality of blades, wherein the plurality of blades are arranged at equal intervals around the hub; The fan blade adjustment drive assembly is respectively connected to the plurality of fan blades in a transmission manner, and the fan blade adjustment drive assembly is respectively electrically connected to the power interface panel and the controller, and the controller controls the working state of the fan blade drive assembly according to the received wind pressure and air volume information to control the rotation angle of the plurality of fan blades; The fan blade adjustment drive assembly includes a fan blade adjustment motor and a transmission adjustment structure; The fan blade adjustment motor is electrically connected to the controller, and the fan blade adjustment motor is transmission-connected to one end of the transmission adjustment structure, and the other end of the transmission adjustment structure is fixedly connected to the plurality of fan blades.

2. The self-adaptive axial flow fan according to claim 1, characterized in that: The wind pressure and air volume information acquisition component includes an air volume sensor, a wind pressure sensor and a sensor mounting bracket; The sensor mounting bracket is hoisted at the top position in the cavity; The air volume sensor and the wind pressure sensor are both installed on the sensor mounting bracket.

3. The self-adaptive axial flow fan according to claim 2, characterized in that: The wind pressure and air volume information collection component also includes a rubber isolation support; The rubber vibration isolation support is fixed on the sensor mounting bracket, and the air volume sensor and the wind pressure sensor are mounted and fixed on the rubber vibration isolation support.

4. The self-adaptive axial flow fan according to any one of claims 1 to 3, characterized in that: The driving assembly includes a driving motor and a transmission shaft; The driving motor is electrically connected to the controller and the power interface panel respectively. The driving motor is connected to one end of the transmission shaft, and the other end of the transmission shaft is connected to the impeller assembly.

5. The self-adaptive axial flow fan according to any one of claims 1 to 3, characterized in that: The controller is arranged in the power interface panel; the controller is also provided with a wireless transmission module, and the wireless transmission module is used to receive an external control signal to realize the control of the working state of the driving component.

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