CN210196084U

CN210196084U - Frequency conversion fan

Info

Publication number: CN210196084U
Application number: CN201921131065.4U
Authority: CN
Inventors: Jiqing Lu; 陆继清
Original assignee: Suzhou Xinjiefei Micro Motor Manufacturing Co Ltd
Current assignee: Suzhou Xinjiefei Micro Motor Manufacturing Co Ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-03-27
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a frequency conversion fan belongs to the fan field, including the dryer, the front of dryer is provided with control module, the inside of dryer is provided with impeller mechanism, the left side of dryer is provided with the dust screen, the inner wall fixedly connected with of dryer is located the first wind pressure sensor between dust screen and the impeller mechanism. The utility model discloses a control module carries out real-time detection to the wind pressure of air inlet and air-out simultaneously, when appearing unusual, can adjust the operation of fan by oneself, need not the manual work and adjust, solved current fan when using, it operates to be the manual work mostly, just can reach the effect of adjusting the amount of wind, can't adjust by oneself, and the staff only through observing the air-out condition, can't in time discover unusually, even discover unusual back, the fan has abnormal operation a period, make the environment of using easily appear the problem of great difference.

Description

Frequency conversion fan

Technical Field

The utility model relates to a fan field, more specifically say, relate to a frequency conversion fan.

Background

The fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. The fan is a Chinese habit short for gas compression and gas conveying machinery, and generally comprises a ventilator, a blower and a wind driven generator, and is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and ventilation and induced air of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grain, wind tunnel wind source and air cushion boat inflating and propelling.

The use of present society fan is comparatively frequent, and the fan extensively is used for ventilation, air conditioning and air purification engineering, and current fan when using, the manual work of most is operated, just can reach the effect of adjusting the amount of wind, can't adjust by oneself, and the staff only through observing the air-out condition, can't in time discover unusually, even discover unusual back, the fan has abnormal operation a period, makes the environment of using easily appear great difference.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Problem to exist among the prior art, the utility model aims to provide a frequency conversion fan possesses the amount of wind that can real-time detection fan, and carry out the advantage of adjusting according to unusual air inlet and the air-out to the fan, solved current fan when using, mostly the manual work is operated, just can reach the effect of adjusting the amount of wind, can't adjust by oneself, and the staff only through observing the air-out condition, can't in time discover unusually, even discover unusual back, the fan has normally operated a period, the problem of great difference easily appears in the environment that makes the use.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A variable frequency fan comprises an air duct, wherein a control module is arranged on the front side of the air duct, an impeller mechanism is arranged inside the air duct, a dust screen is arranged on the left side of the air duct, a first wind pressure sensor is fixedly connected to the inner wall of the air duct and positioned between the dust screen and the impeller mechanism, the output end of the first wind pressure sensor is electrically connected with the output end of the control module, a wind adjusting cover is fixedly connected to the right side of the air duct, a supporting frame is fixedly connected to the inner wall of the wind adjusting cover, a gear mounting shell is fixedly connected to the right side of the supporting frame, a brake motor is arranged on the right side of the gear mounting shell, the input end of the brake motor is electrically connected with the output end of the control module, the output shaft of the brake motor penetrates through the gear mounting shell and is fixedly connected with a first bevel gear, the surface of the, the pivot has been cup jointed to second bevel gear's inner edge, the one end fixedly connected with deep bead that the pivot deviates from second bevel gear, the deep bead rotates with the inner wall of air conditioning cover to be connected, the right side fixedly connected with installing frame of air conditioning cover, the inner wall fixedly connected with second wind pressure sensor of installing frame, second wind pressure sensor's output and control module's input electric connection.

Preferably, the control module comprises a central processing unit and a data comparator, the central processing unit is electrically connected with a ROM preset module in a bidirectional manner, an output end of the ROM preset module is electrically connected with an input end of the data comparator, and the data comparator is electrically connected with the central processing unit in a bidirectional manner.

Preferably, the impeller mechanism comprises a mounting frame, a motor is fixedly mounted on one side of the mounting frame, and an impeller is fixedly connected to an output shaft of the motor.

Preferably, the left side of dryer is seted up the slot that the annular distributes, the right side fixedly connected with inserted bar that the annular distributes of dust screen, the thread groove has been seted up to one side of inserted bar, the surface threaded connection of dryer has the screw that the annular distributes, the screw run through the dryer and with thread groove threaded connection.

Preferably, the bottom of the air duct is fixedly connected with a fixing frame, and the front surface of the fixing frame and the back plate are fixedly connected with a locking plate.

Preferably, the air duct and the mounting frame are connected with the air adjusting cover through screws.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) the scheme is that a first wind pressure sensor is arranged to detect wind pressure at the air inlet of a fan, a second wind pressure sensor is arranged to detect wind pressure at the air outlet of the fan, the detected values of the wind pressure at the air inlet and the wind pressure at the air outlet are transmitted to a central processing unit, a data comparator compares detected data with a preset normal wind pressure difference value of a ROM preset module, when the wind pressure at the air inlet is overlarge and a large difference occurs, the central processing unit controls the rotating speed of a motor, the rotating speed of the motor is adjusted by adjusting the rotating speed of the motor so as to enable the fan to normally operate, meanwhile, if the difference of the wind pressure at the air outlet is overlarge, the central processing unit controls a brake motor to operate, the brake motor works to drive a first bevel gear to rotate, the first bevel gear drives a rotating shaft to rotate through a second bevel gear so as to enable wind shields to rotate, so as, the effect of good adjustment amount of wind has been played, carry out real-time detection to the wind pressure of air inlet and air-out simultaneously through control module, when unusual appearing, can adjust the operation of fan by oneself, need not the manual work and adjust, current fan when using has been solved, it operates to have mostly the manual work, can reach the effect of adjusting the amount of wind, can't adjust by oneself, and the staff only is through observing the air-out condition, can't in time discover unusually, even discover unusual back, the fan has unusual operation a period, the problem of great difference easily appears in the environment that makes the application.

(2) This frequency conversion fan, dust screen can prevent that the fan from inhaling the dust, and when needs are dismantled and are changed the dust screen, unscrew the screw, can be with the quick dismantlement of dust screen this moment, during the installation, insert the slot inside with the inserted bar, then use the screw up can, the installation is very convenient.

(3) This frequency conversion fan, mounting bracket have played the effect of supporting the dryer, and the locking board is then convenient to install the fan on the mounting point.

(4) This frequency conversion fan uses the screw all to be connected dryer and installing frame with adjusting the wind cover, has made things convenient for the dismantlement of dryer, installing frame and accent wind cover, and follow-up maintenance is maintained or the clearance dust is more convenient.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the connection between the first bevel gear and the second bevel gear according to the present invention;

fig. 5 is a system flow chart of the present invention.

The reference numbers in the figures illustrate:

1. an air duct; 2. a control module; 21. a central processing unit; 22. a ROM preset module; 23. a data comparator; 3. an impeller mechanism; 4. a dust screen; 5. a first wind pressure sensor; 6. a slot; 7. inserting a rod; 8. a thread groove; 9. a screw; 10. a wind adjusting cover; 11. a support frame; 12. a gear mounting housing; 13. a brake motor; 14. a second bevel gear; 15. a rotating shaft; 16. installing a frame; 17. a second wind pressure sensor; 18. a fixed mount; 19. a first bevel gear; 20. a wind deflector.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, a variable frequency fan comprises an air duct 1, a control module 2 is arranged on the front side of the air duct 1, the control module 2 comprises a central processing unit 21 (model SPC-STW-1810) and a data comparator 23, the central processing unit 21 is electrically connected with a ROM preset module 22 in a bidirectional manner, an output end of the ROM preset module 22 is electrically connected with an input end of the data comparator 23, the data comparator 23 is electrically connected with the central processing unit 21 in a bidirectional manner, the control module 2 further comprises an a/D converter for converting detected data so that the central processing unit 21 can process the data, an impeller mechanism 3 is arranged inside the air duct 1, the impeller mechanism 3 comprises a mounting frame, a motor is fixedly mounted on one side of the mounting frame, an output shaft of the motor is fixedly connected with an impeller, and a dust screen 4 is arranged on the left side of the air duct 1, the dustproof fan has the advantages that the dustproof effect is achieved, the inner wall of the air duct 1 is fixedly connected with a first air pressure sensor 5 located between a dustproof net 4 and the impeller mechanism 3, the output end of the first air pressure sensor 5 is electrically connected with the output end of the control module 2, the right side of the air duct 1 is fixedly connected with an air adjusting cover 10, the inner wall of the air adjusting cover 10 is fixedly connected with a support frame 11, the right side of the support frame 11 is fixedly connected with a gear mounting shell 12, the right side of the gear mounting shell 12 is provided with a brake motor 13, the brake motor 13 is a motor which can not rotate after being stopped and can fix an output shaft, the application in the prior art is mature, the input end of the brake motor 13 is electrically connected with the output end of the control module 2, the output shaft of the brake motor 13 penetrates through the gear mounting shell 12 and is fixedly connected with a first bevel gear 19, the inner edge of second bevel gear 14 has cup jointed pivot 15, and pivot 15 deviates from one end fixedly connected with deep bead 20 of second bevel gear 14, and deep bead 20 rotates with the inner wall of air adjusting cover 10 to be connected, and the right side fixedly connected with installing frame 16 of air adjusting cover 10, the inner wall fixedly connected with second wind pressure sensor 17 of installing frame 16, the output of second wind pressure sensor 17 and control module 2's input electric connection.

Preferably, slot 6 that the annular distributes is seted up in the left side of dryer 1, inserted bar 7 that the right side fixedly connected with annular of dust screen 4 distributes, thread groove 8 has been seted up to one side of inserted bar 7, the surface threaded connection of dryer 1 has the screw 9 that the annular distributes, screw 9 runs through dryer 1 and with 8 threaded connection of thread groove, dust screen 4 can prevent that the fan from inhaling the dust, and when needing to dismantle change dust screen 4, screw 9 is unscrewed, can be with the quick dismantlement of dust screen 4 this moment, during the installation, insert inside slot 6 with inserted bar 7, then use screw 9 to screw up can, it is very convenient to install.

Preferably, the bottom of the air duct 1 is fixedly connected with a fixing frame 18, the front face and the back plate of the fixing frame 18 are both fixedly connected with a locking plate, the fixing frame 18 plays a role in supporting the air duct 1, and the locking plate is convenient for installing the fan on a mounting point.

Preferably, the air duct 1 and the mounting frame 16 are both connected with the air adjusting cover 10 through screws, the air duct 1, the mounting frame 16 and the air adjusting cover 10 are convenient to disassemble, and follow-up maintenance or dust cleaning is more convenient.

The working principle is as follows: the wind pressure at the wind inlet of the fan is detected by arranging a first wind pressure sensor 5, the wind pressure at the wind outlet of the fan is detected by a second wind pressure sensor 17, the wind pressure at the wind inlet and the wind pressure at the wind outlet are transmitted to a central processing unit 21, the detected data are compared with a preset normal wind pressure difference value of a ROM preset module 22 by a data comparator 23, when the wind pressure at the wind inlet is overlarge to cause a large difference, the central processing unit 21 controls the rotating speed of a motor, the wind inlet amount is adjusted by adjusting the rotating speed of the motor so as to enable the fan to normally operate, meanwhile, if the wind pressure difference at the wind outlet is overlarge, the central processing unit 21 controls a brake motor 13 to operate, the brake motor 13 works to drive a first bevel gear 19 to rotate, the first bevel gear 19 drives a rotating shaft 15 to rotate through a second bevel gear 14 so as to enable a wind shield 20 to rotate so, thereby make the air output adjustable, the effect of good adjustment amount of wind has been played, carry out real-time detection to the wind pressure of air inlet and air-out simultaneously through control module 2, when appearing unusually, can adjust the operation of fan by oneself, need not the manual work and adjust, current fan when using has been solved, mostly the manual work is operated, can reach the effect of adjusting the amount of wind, unable self-regulation, and the staff is only through observing the air-out condition, can't in time discover unusually, even discover unusually after, the fan has unusual operation a period, make the environment of using easily appear the problem of great difference.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a frequency conversion fan, includes dryer (1), its characterized in that: the front of the air duct (1) is provided with a control module (2), an impeller mechanism (3) is arranged inside the air duct (1), a dust screen (4) is arranged on the left side of the air duct (1), the inner wall of the air duct (1) is fixedly connected with a first air pressure sensor (5) which is positioned between the dust screen (4) and the impeller mechanism (3), the output end of the first air pressure sensor (5) is electrically connected with the output end of the control module (2), the right side of the air duct (1) is fixedly connected with a wind adjusting cover (10), the inner wall of the wind adjusting cover (10) is fixedly connected with a support frame (11), the right side of the support frame (11) is fixedly connected with a gear installation shell (12), the right side of the gear installation shell (12) is provided with a brake motor (13), the input end of the brake motor (13) is electrically connected with the output end of the control module (2, the output shaft of brake motor (13) runs through gear installation shell (12) and the first bevel gear of fixedly connected with (19), the surface engagement of first bevel gear (19) has quantity to be six second bevel gear (14), pivot (15) have been cup jointed to the inner edge of second bevel gear (14), pivot (15) deviate from one end fixedly connected with deep bead (20) of second bevel gear (14), deep bead (20) are connected with the inner wall rotation of accent fan housing (10), the right side fixedly connected with installing frame (16) of accent fan housing (10), the inner wall fixedly connected with second wind pressure sensor (17) of installing frame (16), the output of second wind pressure sensor (17) and the input electric connection of control module (2).

2. The variable frequency fan according to claim 1, wherein: the control module (2) comprises a central processing unit (21) and a data comparator (23), the central processing unit (21) is electrically connected with a ROM presetting module (22) in a bidirectional mode, the output end of the ROM presetting module (22) is electrically connected with the input end of the data comparator (23), and the data comparator (23) is electrically connected with the central processing unit (21) in a bidirectional mode.

3. The variable frequency fan according to claim 1, wherein: the impeller mechanism (3) comprises a mounting frame, a motor is fixedly mounted on one side of the mounting frame, and an impeller is fixedly connected to an output shaft of the motor.

4. The variable frequency fan according to claim 1, wherein: slot (6) that the annular distributes are seted up in the left side of dryer (1), inserted bar (7) that the right side fixedly connected with annular of dust screen (4) distributes, thread groove (8) have been seted up to one side of inserted bar (7), the surface threaded connection of dryer (1) has screw (9) that the annular distributes, screw (9) run through dryer (1) and with thread groove (8) threaded connection.

5. The variable frequency fan according to claim 1, wherein: the bottom of the air duct (1) is fixedly connected with a fixing frame (18), and the front face of the fixing frame (18) and the back plate are fixedly connected with a locking plate.

6. The variable frequency fan according to claim 1, wherein: the air duct (1) and the mounting frame (16) are connected with the air adjusting cover (10) through screws.