Multifunctional ventilating fan

Abstract

The utility model provides a multifunctional ventilating fan which comprises a ventilating fan body, the ventilating fan body is provided with an air inlet end and an air outlet end which are communicated, an impeller, a motor driving the impeller and a control device controlling the motor are arranged in the ventilating fan body, and the control device is electrically connected with a power source. The power source comprises a photovoltaic device and a mains supply power line which can be alternately used according to actual weather changes so as to ensure that the ventilator can work continuously. A temperature detector and a male and female plug are arranged in the air inlet end, and the male and female plug controls connection of the temperature detector and a control device. The temperature detector is arranged, and the connection state of the temperature detector and the control device is controlled through connection or disconnection of the male plug and the female plug, that is, when the male plug and the female plug are connected, the temperature detector is electrically connected with the control device and controls start and stop of the ventilator according to the temperature detected by the temperature detector, and otherwise, when the male plug and the female plug are disconnected, the ventilator is started. And the temperature detector is disconnected with the control device, so that the ventilation fan is directly controlled to be started or stopped by turning on or turning off the power supply.

Description

Technical Field

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

[0002] Since a factory is a relatively enclosed space, when people work in the factory for a long time, the internal air becomes relatively dirty, and even contains smoke and harmful gases, which poses certain harm to the people in the factory. Moreover, a large amount of dust is likely to explode in the enclosed space, endangering the safety of personnel. Therefore, it is necessary to install a ventilation fan to exhaust the air in the factory to achieve the effect of air circulation in the factory. In the prior art, ventilation fans are usually installed on the wall or on the factory roof, and some need to be controlled manually to turn on and off, and cannot be started and stopped automatically. Some ventilation fans are equipped with temperature control, and when the detected room temperature reaches the set value, they will be automatically turned on. However, when the temperature in the factory does not reach the set value but it is necessary to turn on the ventilation fan for ventilation, this function cannot be achieved. Both have defects in use and are not convenient for personnel to ventilate the air in the factory according to actual needs. Content of the Utility Model

[0003] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a multifunctional ventilation fan.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A multifunctional ventilation fan includes a ventilation fan. The ventilation fan is provided with a communicating air inlet end and air outlet end. Inside the ventilation fan, there are an impeller, a motor for driving the impeller, and a control device for controlling the motor. The control device is electrically connected to a power source; inside the air inlet end, there are a temperature detector and a male-female plug, and the male-female plug controls the connection between the temperature detector and the control device.

[0006] Further, the ventilation fan is provided with a photovoltaic device, and the photovoltaic device includes a photovoltaic panel and a mounting bracket; the front side of the photovoltaic panel faces upward, and a photovoltaic junction box is installed on its back and is electrically connected to the control device; the photovoltaic panel is installed on the ventilation fan through the mounting bracket.

[0007] Further, the ventilation fan is provided with a power cord connected to the commercial power, and the power cord is electrically connected to the control device.

[0008] Further, the mounting bracket includes a first support rod and a second support rod. The first support rod is fixedly installed on the ventilation fan, and the second support rod is provided with a plurality of fixing holes, and the second support rod can be adjustably installed at the end of the first support rod through the fixing holes.

[0009] Further, one end of the photovoltaic panel is installed and connected to the corresponding end of the first support rod, and the other end of the photovoltaic panel is installed and connected to the end of the second support rod, and the inclination angle of the photovoltaic panel is adjusted through the fixing holes.

[0010] Further, the detection end of the temperature detector extends to the opening of the air inlet end.

[0011] Further, the ventilation fan is composed of a first cylinder and a second cylinder with different diameters. The diameter of the first cylinder is smaller than that of the second cylinder, and the two overlap and communicate with each other front and back. The air inlet end is arranged on the first cylinder, and the air outlet end is arranged on the second cylinder, and the air inlet end and the air outlet end are arranged in the same direction.

[0012] Further, one end of the second cylinder is provided with an opening and is installed with an air outlet net; both the front and rear ends of the first cylinder are provided with openings. Among them, an air inlet net is provided on the opening far from the second cylinder end, and the opening close to the second cylinder end is installed on the air outlet net.

[0013] Further, a cavity is provided in the first cylinder. The cavity is fixedly installed on the circumferential inner wall of the first cylinder through a fixing rod and is fixedly installed on the air inlet net through a screw. The temperature detector is wound around the fixing rod and its detection end extends to a position close to the air inlet net; the motor and the control device are adaptively installed in the cavity.

[0014] Further, a wind guide cover is provided at a position corresponding to the first cylinder in the second cylinder. The wind guide cover is in a horn shape and the end with a larger diameter is fixedly installed on the inner wall bottom of the second cylinder.

[0015] The utility model has the following beneficial effects:

[0016] 1. A temperature detector is provided, and the connection state between the temperature detector and the control device is controlled by connecting or disconnecting the male and female plugs. That is, when the male and female plugs are connected, the temperature detector is electrically connected to the control device and the start and stop of the ventilation fan are controlled according to the temperature detected by the temperature detector. On the contrary, when the male and female plugs are disconnected, the temperature detector is also disconnected from the control device, and then the start and stop of the ventilation fan are directly controlled by the power switch.

[0017] 2. A photovoltaic device is provided. The orientation of the photovoltaic panel is adjusted through the bracket to achieve a full-day sunlight environment, and the ventilation fan is powered by the photovoltaic power generation to achieve the effect of energy saving.

[0018] 3. A power cord connected to the mains is provided. In the case of insufficient light or no light, the ventilation fan is powered by the mains, and the start and stop of the ventilation fan can be automatically controlled throughout the day in cooperation with the temperature detector.

[0019] 4. A wind guide cover is provided. Through the cooperation between the wind guide cover and the inner wall of the second cylinder, the air inside the ventilation fan can circulate rapidly and be discharged. Description of the Drawings

[0020] Figure 1 It is a three-dimensional view of the overall structure of an embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the installation of the fixing component and the air outlet net of an embodiment of the present invention.

[0022] Figure 3 It is an exploded view of the overall structure of an embodiment of the present invention.

[0023] Figure 4 For an embodiment of the present invention Figure 3 Enlarged view of part A.

[0024] Figure 5 It is a schematic diagram of adjusting the angle of the photovoltaic device of an embodiment of the present invention.

[0025] Figure 6 It is a schematic diagram of installing the ventilation fan on the roof cover of a house of an embodiment of the present invention.

[0026] Figure 7 It is a three-dimensional structure diagram of the wind guide cover of an embodiment of the present invention.

[0027] Reference numerals in the drawings: ventilation fan 1, fixing component 10, clamping block 101, arc-shaped limiting component 102, air inlet end 11, temperature detector 111, male-female plug 112, air outlet end 12, impeller 14;

[0028] First cylinder 16, air inlet net 161, cavity 162, fixing rod 163, air inlet net 161, second cylinder 17, air outlet net 171, wind guide cover 18;

[0029] Photovoltaic device 2, photovoltaic panel 21, mounting bracket 22, first support rod 221, second support rod 222, fixing hole 223, photovoltaic junction box 23;

[0030] Power cord 3;

[0031] Roof cover 4. Detailed Description of the Embodiment

[0032] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model.

[0034] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" 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 a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] As Figures 1 - 7 shown, a multifunctional ventilation fan is installed on the upper part of the top cover of a factory for air ventilation and circulation inside the factory. It includes a ventilation fan 1, and the ventilation fan 1 is composed of a first cylinder 16 and a second cylinder 17 with different diameters. The first cylinder 16 and the second cylinder 17 overlap and communicate with each other front and back. An air inlet end 11 and a ventilation component are provided on the first cylinder 16, and an air outlet end 12 is provided on the second cylinder 17. The air inlet end 11 and the air outlet end 12 are connected in sequence. Specifically, the diameter of the second cylinder 17 is larger than that of the first cylinder 16, and the first cylinder 16 overlaps on the air outlet end 12. The air inlet end 11 is installed on the top cover 4 of the factory and communicates with the gas inside the factory, and the air outlet end 11 is located outside the factory and communicates with the atmosphere. More specifically, the first cylinder 16 and the second cylinder 17 are made of aluminum alloy material, and the outer surface is electrostatically sprayed with epoxy resin for waterproofing and rust prevention.

[0036] As Figure 1 、 Figure 3As shown, one end of the second cylinder 17 is provided with an opening and is installed with an air outlet net 171. Specifically, the circumference of the air outlet net 171 is installed on the inner wall of the second cylinder 17 through a fixing member 10, so that the inside and outside of the second cylinder 17 are separated by the air outlet net 171, which is used to prevent sundries or small animals such as mice from entering the ventilation fan 1. Specifically, the fixing member 10 includes a tightening block 101, and the tightening block 101 is fixed on the circumferential inner wall of the second cylinder 17 by screws. The tightening block 101 is provided with an arc-shaped limiting portion 102. One side of the arc-shaped limiting portion 102 corresponding to the circumferential inner wall of the second cylinder 17 is provided with an opening and limits the outermost net rib of the air outlet net 171 within the arc-shaped limiting portion 102, thereby limiting and installing the entire air outlet net 171 and fixing it at the opening of the second cylinder 17.

[0037] Both the front and rear ends of the first cylinder 16 are provided with openings. Among them, an air inlet net 161 is provided on the opening far from the second cylinder 17, and the opening close to the second cylinder 17 is installed on the air outlet net 171. Specifically, it is fixedly installed with the inner circle of the air outlet net 171 by screws.

[0038] The ventilation component includes an impeller 14, a motor (not marked in the figure) for driving the impeller 14, and a control device (not marked in the figure) for controlling the start and stop of the motor. The control device is electrically connected to the power supply, and the motor uses a brushless DC variable-frequency motor. Specifically,. A cavity 162 is provided inside the first cylinder 16, and the motor 3 and the control device are fixedly installed inside the cavity 162. The impeller 14 is connected and installed to the drive shaft of the motor. The cavity 162 is fixedly installed on the circumferential inner wall of the first cylinder 16 through a fixing rod 163. Specifically, the fixing rods 163 are evenly distributed on the circumference of the cavity 162, and one end is fixed to the cavity 162 by screws, and the other end is fixed to the circumferential inner wall of the first cylinder 16 by screws, so that the cavity 162 can be stably installed inside the first cylinder 16. Further, an air inlet net 161 is provided on the air inlet end 11 to prevent sundries or small animals from entering the ventilation fan 1. The air inlet net 161 is fixedly installed on the cavity 162 by screws and its outer diameter is adapted to the inner diameter of the first cylinder 16.

[0039] When the power is turned on, the control device controls the motor to start and drives the impeller 14 to rotate to pump and ventilate the air inside the factory. The air inside the factory enters from the air inlet end 11 and is discharged to the outside of the factory from the air outlet end 12, thereby realizing the air circulation inside the factory and achieving the effect of ventilation and cooling.

[0040] Further, as Figure 3 、 Figure 5 、 Figure 6As shown, since the start and stop of the ventilation fan 1 need to be manually operated, when it is felt that the temperature in the factory indoor is high, it is necessary to manually turn on the switch of the ventilation fan 1, and when it is felt that the temperature in the factory indoor is low, it is also necessary to manually turn off the ventilation fan 1 to make it stop working, which is very inconvenient. Therefore, in order to achieve the effect of automatic start and stop of the ventilation fan 1, a temperature detector 111 and a male-female plug 112 are provided in the air inlet end 11, and the male-female plug 112 controls the connection state between the temperature detector 111 and the control device by connecting or disconnecting. Specifically, the temperature detector 111 is wound around the fixing rod 163 and its detection end extends to a position close to the air inlet net 161, so as to more accurately detect the indoor temperature. When the temperature detector 111 detects that the indoor temperature reaches the set value, it transmits a signal to the control device to start the corresponding program, and this set value is set by the user according to actual needs.

[0041] When the male-female plug 112 is connected, the temperature detector 111 is activated to detect the current indoor temperature in the factory and control the opening or stopping of the ventilation fan 1 according to the real-time detected temperature. On the contrary, when the male-female plug 112 is disconnected, the temperature detector 111 does not start working, and the ventilation fan 1 can continue to work or stop working through power control.

[0042] Specifically, if the set value is 26 °C, when the male-female plug 112 is connected and the temperature detector 111 detects that the indoor temperature reaches or is higher than the set value of 26 °C, a signal is transmitted to the control device and the ventilation component is started to ventilate the air inside the factory. On the contrary, when the male-female plug 112 is connected while the indoor temperature detected by the temperature detector 111 is lower than the set value of 26 °C, the ventilation component does not start working.

[0043] When the male-female plug 112 is disconnected, the start and stop of the ventilation component are not affected by the temperature set value, and the user can control the opening or stopping of the ventilation fan through the power switch.

[0044] Further, as Figure 7 shown, in order to enable the gas entering the ventilation fan 1 to flow and be discharged quickly, a wind guide cover 18 is provided at a position corresponding to the first cylinder 16 inside the second cylinder 17. The wind guide cover 18 is in a horn shape and its larger-diameter end is fixedly installed on the inner bottom wall of the second cylinder 17 by screws. When the air enters from the first cylinder 16, the air flows along the outer wall of the wind guide cover 18. Since the wind guide cover 18 is in a horn shape and its outer wall is arc-shaped and inclined around, the air quickly changes the flow direction after flowing through the wind guide cover 18 and is quickly discharged from the air outlet end 12 through the rebound of the inner circumferential wall of the second cylinder 17, achieving the effect of quick exhaust and ventilation.

[0045] Further, in order to save energy and achieve the effect that the ventilation fan 1 automatically starts and stops according to the set temperature value. The ventilation fan 1 is provided with a photovoltaic device 2 for supplying power to the ventilation fan 1. The photovoltaic device 2 includes a photovoltaic panel 21 and a mounting bracket 22. The front side (heat-absorbing surface) of the photovoltaic panel 21 faces upward to absorb solar energy. A photovoltaic junction box 23 is installed on its back and is electrically connected to the control device, converting solar energy into electrical energy to supply power to the control device. The photovoltaic panel 21 is installed on the top of the second cylinder 17 through the mounting bracket 22, and its installation method can be screw connection, welding, bonding, etc.

[0046] Further, as Figure 5 , Figure 6 shown, since the sun is active, the fixedly installed photovoltaic device 2 cannot achieve a full-day sunlight environment, resulting in an unsatisfactory effect of absorbing solar energy. Therefore, the direction of the photovoltaic panel 21 is adjusted to achieve a full-day sunlight environment. Specifically, the mounting bracket 22 includes a first support rod 221 and a second support rod 222. The first support rod 221 is fixedly installed on the top of the second cylinder 17 by screws. A number of fixing holes 223 are arranged on the second support rod 222. The second support rod 222 is adjustably installed at the end of the first support rod 221 through the fixing holes 223, so that the photovoltaic panel 21 can adjust its own inclination angle according to the direction of the sun, achieving the effect that the front side faces the sun irradiation direction and fully absorbing solar energy. Specifically, one end of the photovoltaic panel 21 is installed and connected to the corresponding end of the first support rod 221, and the other end of the photovoltaic panel 21 is installed and connected to the end of the second support rod 222, and the inclination angle of the photovoltaic panel 21 is adjusted through the fixing holes 223.

[0047] Further, when there is no sun on cloudy days or at night, the ventilation fan 1 cannot be continuously powered. A power cord 3 connected to the commercial power is provided on the ventilation fan 1, and the power cord 3 is electrically connected to the control device.

[0048] When the sunlight is sufficient, the photovoltaic device 2 is used to supply power to the ventilation fan 1. When it is cloudy, at night or the sunlight is insufficient, the commercial power cord 3 is used to supply power to the ventilation fan 1, so as to achieve the effect of automatically starting and stopping according to the set temperature throughout the day.

[0049] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any technical solutions that can be obtained by those skilled in the art in the technical field of the present invention based on the concept of the present invention through logical analysis, reasoning or limited experiments should be within the protection scope determined by the claims.

Claims

1. A multifunctional ventilating fan, characterized in that: The ventilation fan (1) comprises a ventilation fan (1), wherein the ventilation fan (1) is provided with an air inlet end (11) and an air outlet end (12) which are connected to each other, wherein an impeller (14), a motor for driving the impeller (14) and a control device for controlling the motor are provided in the air inlet end (11), and the control device is electrically connected to a power supply; and a temperature detector (111) and a male and female plug (112) are provided in the air inlet end (11), and the connection state of the temperature detector (111) and the control device is controlled by connecting or disconnecting the male and female plug (112).

2. The multifunctional ventilating fan according to claim 1, characterized in that: The ventilating fan (1) is provided with a photovoltaic device (2), the photovoltaic device (2) comprising a photovoltaic panel (21) and a mounting bracket (22); the front side of the photovoltaic panel (21) faces upward, and a photovoltaic junction box (23) is mounted on the back side thereof and is electrically connected to the control device; the photovoltaic panel (21) is mounted on the ventilating fan (1) via the mounting bracket (22).

3. The multifunctional ventilating fan according to claim 1 or 2, characterized in that: The ventilation fan (1) is provided with a power line (3) connected to the mains, and the power line (3) is electrically connected to the control device.

4. The multifunctional ventilating fan according to claim 2, characterized in that: The mounting bracket (22) comprises a first support rod (221) and a second support rod (222); the first support rod (221) is fixedly mounted on the ventilating fan (1); the second support rod (222) is provided with a plurality of fixing holes (223); the second support rod (222) is adjustably mounted on the end of the first support rod (221) through the fixing holes (223).

5. The multifunctional ventilating fan according to claim 4, characterized in that: One end of the photovoltaic panel (21) is mounted and connected to the corresponding end of the first support rod (221), the other end of the photovoltaic panel (21) is mounted and connected to the end of the second support rod (222), and the inclination angle of the photovoltaic panel (21) is adjusted through the fixing hole (223).

6. The multifunctional ventilating fan according to claim 1, characterized in that: The detection end of the temperature detector (111) extends to the opening of the air inlet end (11).

7. The multifunctional ventilating fan according to claim 1, characterized in that: The ventilation fan (1) is composed of a first cylinder (16) and a second cylinder (17) having different diameters, the diameter of the first cylinder (16) being smaller than the diameter of the second cylinder (17), and the two cylinders are overlapped and connected front to back, the air inlet end (11) is arranged on the first cylinder (16), the air outlet end (12) is arranged on the second cylinder (17), and the air inlet end (11) and the air outlet end (12) are arranged in the same direction.

8. The multifunctional ventilating fan according to claim 7, characterized in that: One end of the second cylinder (17) is provided with an opening and is equipped with an air outlet net (171); both front and rear ends of the first cylinder (16) are provided with openings, wherein the opening at the end away from the second cylinder (17) is provided with an air inlet net (161), and the opening at the end close to the second cylinder (17) is equipped with an air outlet net (171).

9. The multifunctional ventilating fan according to claim 8, characterized in that: A cavity (162) is provided in the first cylinder (16); the cavity (162) is fixedly mounted to the circumferential inner wall of the first cylinder (16) via a fixing rod (163) and fixedly mounted to the air inlet net (161) via screws; the temperature detector (111) is wound around the fixing rod (163) and its detection end extends to a position close to the air inlet net (161); and the motor and the control device are adapted to be mounted in the cavity (162).

10. The multifunctional ventilating fan according to claim 7, characterized in that: An air guide cover (18) is provided at a position inside the second cylinder (17) corresponding to the first cylinder (16). The air guide cover (18) is trumpet-shaped and one end with a larger diameter is fixedly mounted on the inner bottom wall of the second cylinder (17).

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