Energy-saving fan

Abstract

The utility model provides an energy-saving motor which comprises a fan main body, the fan main body is of a hyperbola structure, the interior of the fan main body is of a hollow structure, one end of the fan main body is an air inlet, and the other end of the fan main body is an air outlet; a base; the motor is fixedly mounted in the fan main body through a first bracket; the fan is connected with the motor and comprises fan blades and blade discs, the blade discs comprise the first blade disc and the second blade disc, and the fan blades are located between the first blade disc and the second blade disc; the frequency converter is fixedly mounted on the side surface of the motor and is connected with the motor; the wind speed transmitter is mounted on the side surface of the frequency converter and is connected with the frequency converter; the diameter of the air outlet is larger than that of the air inlet; according to the energy-saving draught fan, a wind speed signal is converted into a corresponding current signal through the wind speed transmitter, the signal is transmitted to the frequency converter, the frequency converter controls the rotating speed of the motor according to the received signal, and the purposes of energy conservation and consumption reduction are achieved.

Description

Technical Field

[0001] The utility model relates to the field of fan equipment, in particular to an energy-saving fan. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas. It is a driven fluid machine. Fan is China's customary abbreviation for gas compression and gas delivery machinery. Fans can be divided into three types according to their working principles: axial flow fans, cyclonic fans and centrifugal fans. When the fan is working, the airflow enters the blade space from the fan axis, and then rotates with the impeller under the drive of the impeller; on the other hand, it increases energy under the action of inertia and leaves the impeller in the radial direction. The fan that relies on the centrifugal force to do work is called a centrifugal fan. Fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air induction of boilers and industrial furnaces, cooling and ventilation in air conditioning equipment and household appliances, drying and selection of grains, wind tunnel wind sources and inflation and propulsion of hovercraft, etc.

[0003] The fan is a high-energy-consuming device. With the increasing shortage of energy in my country and the promotion and application of high-yield and high-efficiency working surfaces, energy conservation and consumption reduction have become a common concern. Reducing the energy loss of the fan is an important task at present. Most of the current fans have the phenomenon of a big horse pulling a small cart during use. In addition, due to changes in production and technology, the wind power conversion rate is not high, the wind power loss is large, and it cannot meet the energy-saving standards and does not meet the requirements of environmental protection. In addition, when the fan is in use, the continuous operation of the fan causes the internal components to work at high heat and energy loss. Utility Model Content

[0004] The utility model solves the problem of high energy consumption of existing fans and provides an energy-saving fan. The frequency converter uses the signal transmitted by the wind speed transmitter as a reference to control the running speed of the motor, thereby achieving the purpose of energy saving and consumption reduction.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An energy-saving fan, comprising:

[0007] The fan body is a hyperbolic structure with a hollow interior, one end of which is an air inlet and the other end of which is an air outlet;

[0008] Base;

[0009] An electric motor, wherein the electric motor is fixedly mounted in the fan body through a first bracket;

[0010] A fan connected to the motor, the fan comprising blades and a blade disk, the blade disk comprising a first blade disk and a second blade disk, the fan blade being located between the first blade disk and the second blade disk;

[0011] A frequency converter, fixedly mounted on the side of the motor and connected to the motor;

[0012] A wind speed transmitter is installed on the side of the frequency converter and connected to the frequency converter;

[0013] Wherein, the fan body is fixed on the base through a second bracket; the diameter of the air outlet is larger than the diameter of the air inlet.

[0014] Optionally, a solar panel is provided on the top of the wind turbine body.

[0015] Optionally, the frequency converter is an AC-DC-AC frequency converter, and the motor is an AC induction motor.

[0016] Optionally, a protective net is provided at the air inlet end.

[0017] Optionally, the blower fan is connected to the motor via a connector, and the connector includes a coupling and a transmission shaft.

[0018] Optionally, the fan is a backward-inclined fan.

[0019] Optionally, the motor is an all-copper motor.

[0020] Compared with the prior art, the beneficial effects of the utility model are: the wind speed transmitter converts the wind speed signal into a corresponding current signal, and transmits the signal to the frequency converter. The frequency converter controls the speed of the motor according to the received signal, and can automatically control the air volume to achieve the purpose of energy saving and consumption reduction. The energy-saving fan has a simple structure, and the hyperbolic structure of the fan body is conducive to the flow of wind, thereby improving the wind power conversion rate of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 2 A top view of an embodiment of the utility model;

[0024] Figure 3 It is a schematic structural diagram of the blower fan according to an embodiment of the utility model.

[0025] Figure numerals: 1. fan body; 11. air inlet; 111. protective net; 12. air outlet; 2. base; 21. second bracket; 3. motor; 4. first bracket; 5. fan; 51. fan blade; 52. blade disk; 521. first blade disk; 522. second blade disk; 6. frequency converter; 7. wind speed transmitter; 8. solar panel; 9. connector; 91. coupling; 92. transmission shaft. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships conventionally placed when the product of the present invention is used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0031] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0032] The utility model provides an energy-saving fan, comprising:

[0033] The fan body 1 is a hyperbolic structure with a hollow interior, one end of which is an air inlet 11 and the other end of which is an air outlet 12;

[0034] Base 2;

[0035] An electric motor 3, wherein the electric motor 3 is fixedly mounted in the fan body 1 via a first bracket 4;

[0036] A fan 5 is connected to the motor 3. The fan 5 includes a fan blade 51 and a blade disk 52. The blade disk 52 includes a first blade disk 521 and a second blade disk 522. The fan blade 51 is located between the first blade disk 521 and the second blade disk 522 to form a centrifugal fan with good ventilation effect.

[0037] The frequency converter 6 is fixedly mounted on the side of the motor 3 and connected to the motor 3;

[0038] The wind speed transmitter 7 is installed on the side of the frequency converter 6 and connected to the frequency converter 6; the wind speed transmitter 7 converts the wind speed signal into a current signal of corresponding magnitude, and transmits the current signal to the frequency converter 6. When the current signal reaches a preset current signal magnitude, the frequency converter 6 controls the motor 3 to change the speed and reduce the starting current;

[0039] The fan body 1 is fixed to the base 2 via a second bracket 21 ; the diameter of the air outlet 12 is greater than the diameter of the air inlet 11 , ensuring that the wind flows from the air inlet 11 to the air outlet 12 in the hyperbolic structure.

[0040] It should be noted that the hyperbolic structure of the fan body 1 is conducive to the flow of wind, allowing the wind energy to flow along the inner wall of the fan body 1 toward the air outlet 12, thereby improving the wind conversion rate; when the natural wind volume is large enough, the fan can be stopped. Through the characteristics of the hyperbolic structure of the fan body 1, the natural wind can form convection, providing the air volume required by the equipment, reducing the running time of the motor and reducing energy loss.

[0041] In order to achieve the purpose of energy saving, a solar panel 8 is provided on the top of the fan body 1. The solar panel 8 converts solar energy into electrical energy, which can reduce the power consumption of the motor 3. Specifically, the solar panel 8 is a soft board with good flexibility, and can conform to the hyperbolic structure of the fan body 1 and fit closely therewith.

[0042] Furthermore, the inverter 6 is an AC-DC-AC inverter, and the motor 3 is an AC induction motor; specifically, the inverter 6 is an AC-DC-AC current type inverter, which is electrically connected to the AC induction motor, has high efficiency, and has no additional loss during the speed regulation process, and can achieve closed-loop control of the current, thereby reducing the energy consumption of the AC induction motor; in addition, the AC-DC-AC current type inverter has a large speed regulation range and high precision, which expands the use range of the fan.

[0043] In order to prevent garbage from being sucked into the fan body 1 after the fan is started, a protective net 111 is provided at the end of the air inlet 11.

[0044] Furthermore, the fan 5 is connected to the motor 3 via a connector 9, and the connector 9 includes a coupling 91 and a transmission shaft 92. The coupling 91 has certain buffering and shock absorbing properties, so that the fan 5 can rotate stably. The transmission shaft 92 adopts a direct transmission method to directly transmit the power generated by the motor 3 to the fan 5, thereby reducing energy loss.

[0045] Specifically, the fan 5 is a backward-inclined fan, and the blades 51 of the backward-inclined fan are backward blades, with a wide efficient working area and better working efficiency.

[0046] Furthermore, the motor 3 is an all-copper motor, which has good electrical conductivity, can reduce current loss and energy consumption, and improve the working efficiency of the motor 3, thereby ensuring the reliability and stability of the fan operation; the all-copper motor also has good thermal conductivity, can achieve rapid heat dissipation, and avoid overheating of the motor 3 and damage.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An energy-saving fan, It is characterized in that include: A fan body (1), the fan body (1) being a hyperbolic structure and having a hollow interior, one end of which is an air inlet (11) and the other end of which is an air outlet (12); Base (2); An electric motor (3), the electric motor (3) being fixedly mounted in the fan body (1) via a first bracket (4); A fan (5) connected to the motor (3), the fan (5) comprising a fan blade (51) and a blade disk (52), the blade disk (52) comprising a first blade disk (521) and a second blade disk (522), the fan blade (51) being located between the first blade disk (521) and the second blade disk (522); A frequency converter (6) is fixedly mounted on a side of the motor (3) and connected to the motor (3); A wind speed transmitter (7) is mounted on a side of the frequency converter (6) and connected to the frequency converter (6); The fan body (1) is fixed to the base (2) via a second bracket (21); and the diameter of the air outlet (12) is greater than the diameter of the air inlet (11).

2. The energy-saving fan according to claim 1, Features: A solar cell panel (8) is provided at the top of the fan body (1).

3. The energy-saving fan according to claim 1, Features: The frequency converter (6) is an AC-DC-AC frequency converter, and the motor (3) is an AC induction motor.

4. The energy-saving fan according to claim 1, Features: A protective net (111) is provided at the end of the air inlet (11).

5. The energy-saving fan according to claim 1, Features: The blower fan (5) is connected to the motor (3) via a connector (9), and the connector (9) comprises a coupling (91) and a transmission shaft (92).

6. The energy-saving fan according to claim 5, Features: The fan (5) is a backward-inclined fan.

7. The energy-saving fan according to claim 1, Features: The motor (3) is an all-copper motor.

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