Commercial range hood with variable frequency speed regulation function

Abstract

A commercial range hood capable of achieving frequency conversion and speed regulation comprises a range hood body and a draught fan, the range hood body comprises an adjusting assembly, an opening and closing assembly and a direction assembly, and the adjusting assembly comprises a current sensor, a frequency converter and a microcontroller; the opening and closing assembly comprises a frame installed at the exhaust inlet of the range hood, a plurality of louver blades, connecting pieces connected with the louver blades in series and a motor driving the louver blades to move or rotate are arranged in the frame, and the motor is electrically connected with the microcontroller. In the using process, the adjusting assembly automatically recognizes the starting and stopping conditions of the equipment, then the wind power is automatically adjusted according to the actual conditions, and the using process is convenient. The direction assembly can be installed at a proper position according to actual conditions, the direction of the cover plate is adjusted according to the actual conditions, and the purpose of selecting a proper air outlet direction according to the actual conditions of a site is achieved. After the range hood is used for a period of time, the motor can drive the louvre blades to fold towards one side so as to open the exhaust inlet of the range hood, so that oil stains in the exhaust inlet are cleaned.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of range hood, concretely is a kind of commercial range hood of frequency conversion speed regulation. BACKGROUND

[0002] Range hood is a kind of kitchen appliance of purifying kitchen environment, he is installed to stove top, the waste smoke of stove combustion and the oil fume harmful to human body generated in the process of cooking are rapidly drawn away, discharged outdoor, reduce pollution, purify air, but there are some problems difficult to solve in the use process of existing range hood:1, range hood is always in a mode operation in the process of operation, cannot be transformed according to actual situation, for example when user kitchen only needs to discharge hot gas, steam or light oil fume, range hood is always in wind speed maximum time energy consumption increases and noise is larger;When user kitchen heavy oil fume processing needs full speed operation, range hood is always in wind speed minimum time, then cannot achieve the best smoke exhaust effect;2, current upper part is all integral fixed structure, according to terminal demand, once processing is formed, air outlet cannot change, cannot be adjusted according to actual air outlet direction;3, range hood uses a period of time, and the oil dirt attached needs cleaning, but ordinary range hood needs to be disassembled to clean the oil dirt inside range hood, use is not convenient enough. CONTENT OF UTILITY MODEL

[0003] In view of above, the utility model provides a kind of commercial range hood of frequency conversion speed regulation to solve the problems presented in the above background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a commercial range hood with variable frequency speed control, including a range hood and a fan. The range hood includes an adjustment component for automatically adjusting the range hood's airflow, an opening and closing component for opening or closing the range hood's air intake, and a direction component for changing the direction of the range hood's air outlet. The adjustment component, opening and closing component, and direction component are all installed on the range hood. The adjustment component includes a current sensor for detecting the device's on / off state, a frequency converter for adjusting the range hood's airflow speed, and a microcontroller. The input terminal of the microcontroller is connected to the current sensor, and the output terminal is connected to the frequency converter. The frequency converter and the microcontroller are electrically connected, and the current sensor detects the start and stop of the corresponding device. The system generates an induction signal based on the state of the fan and transmits it to the microcontroller. The microcontroller receives the induction signal and adjusts the output power of the inverter to control the fan speed. The opening and closing assembly is installed at the air intake of the range hood. It includes a frame installed at the air intake of the range hood, multiple louvers, connectors connecting the louvers in series, and a motor that drives the louvers to move or rotate. The connectors connect the multiple louvers in series and are connected to the motor drive end. The motor is electrically connected to the microcontroller. During use, the current sensor checks the equipment start / stop signal, and the inverter adjusts the fan speed according to the signal. When cleaning grease, the motor drives the louvers to move to one side and retract, exposing the range hood body.

[0005] Furthermore, the directional component includes a fan housing for placing the fan. The fan housing includes a cubic fan housing frame and a cover plate. The front, top, rear, left / right sides of the fan housing are all detachable rotating covers. The lower side of the fan housing is a closed cover plate integrally formed with the fan housing frame. The cover plate and the fan housing frame are provided with connection holes, which are located at the four included corners of each end face of the rotating cover plate and at the four included corners of each end face of the fan housing frame corresponding to the rotating cover plate.

[0006] Furthermore, the bottom of the fan is provided with two parallel support frames, each support frame having mounting holes at both ends. Each end face of the fan box frame is provided with threaded holes corresponding to the mounting holes. There are at least four threaded holes, and the holes are arranged in a square shape, so that the fan can rotate horizontally at 0°, 90°, 180°, and 270° inside the fan box.

[0007] Furthermore, multiple adjustment components may be provided, and one or more adjustment components may be set according to the actual situation.

[0008] Furthermore, the range hood is equipped with a switch, and a microcontroller is placed inside the switch. The output end of the switch is connected to the input end of the microcontroller, and the range hood, adjustment components, and opening and closing components are operated through the microcontroller inside the switch.

[0009] Furthermore, the range hood is equipped with a power cord for connecting to an external power source. The output end of the power cord is connected to the input end of a switch, and the external power source is connected to the power cord to provide power to the range hood.

[0010] Furthermore, the connector includes a steel wire rope, which connects the louvers in series and drives the louvers to rotate or move.

[0011] The beneficial effects of this utility model are: 1. During use, the adjustment component automatically identifies the start and stop status of the equipment, and then automatically adjusts the wind speed according to the actual situation, which is more convenient during use; 2. During use, the direction component can be installed in a suitable position according to the actual situation, and the cover plate direction can be adjusted according to the actual situation to achieve the purpose of selecting the appropriate air outlet direction according to the actual site conditions; 3. After the range hood has been used for a period of time, the motor can drive the louvers to retract to one side to open the range hood air intake, thereby cleaning the oil stains inside the air intake. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the right-side orientation component of this utility model.

[0013] Figure 2 This is a schematic diagram of the opening and closing components of this utility model when they are unfolded and retracted.

[0014] Figure 3 This is a detailed structural diagram of the disassembled opening and closing component of this utility model.

[0015] Figure 4 This is a structural schematic diagram of the fan box frame of this utility model.

[0016] Figure 5 This is a side view of the front end of the directional component of this utility model facing downward exhaust.

[0017] Figure 6 This is a schematic diagram of the structure of the fan of this utility model placed inside the fan box.

[0018] Figure 7 This is a structural schematic diagram of the fan of this utility model.

[0019] Figure 8 This is a schematic diagram of the adjustment component of this utility model.

[0020] exist Figures 1-8 The components are: 1. Range hood; 2. Fan; 3. Current sensor; 4. Inverter; 5. Microcontroller; 6. Frame; 7. Louvers; 8. Motor; 9. Connector; 10. Fan box frame; 11. Cover plate; 12. Rotating cover plate; 13. Sealing cover plate; 14. Connection hole; 15. Support frame; 16. Mounting hole; 17. Threaded hole; 18. Switch; 19. Power cord. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the drawings and some embodiments.

[0022] In Figures 1-8 In the present application, a commercial oil fume exhauster with variable frequency speed regulation comprises an oil fume exhauster 1 and a fan 2. The oil fume exhauster 1 is a common oil fume exhauster in daily life, which can be a commercial oil fume exhauster or a household oil fume exhauster, such as a CXW-260-T70 model oil fume exhauster. The oil fume exhauster 1 comprises a regulating assembly for automatically regulating the wind force of the oil fume exhauster 1, an opening and closing assembly for opening or closing the air inlet of the oil fume exhauster 1, and a direction assembly for changing the direction of the air outlet of the oil fume exhauster 1. The regulating assembly, the opening and closing assembly, and the direction assembly are all installed on the oil fume exhauster 1. The direction assembly can be installed on the left side or the right side above the oil fume exhauster 1, and can be selected according to the actual situation.

[0023] The regulating assembly comprises a current sensor 3 for detecting the on-off state of the equipment, a frequency converter 4 for regulating the wind speed of the oil fume exhauster 1, and a microcontroller 5. The input end of the microcontroller 5 is connected to the current sensor 3, and the output end is connected to the frequency converter 4. The frequency converter 4 is a common oil fume frequency converter 4, such as a z2000 series frequency converter 4. The frequency converter 4 is electrically connected to the microcontroller 5. The current sensor 3 detects the on-off state of the corresponding equipment to generate an induction signal and transmits the induction signal to the microcontroller 5. The microcontroller 5 receives the induction signal and adjusts the output power of the frequency converter 4 to control the rotating speed of the fan 2 according to the induction signal. The current sensor 3 is connected to the corresponding equipment circuit respectively. The current sensor 3 detects whether there is current input in the equipment circuit to confirm whether the oil fume exhauster 1 is working. When the oil fume exhauster 1 is not working, the microcontroller 5 inputs an electric signal to the frequency converter 4 to reduce the input power of the frequency converter 4, thereby reducing the rotating speed of the fan 2 and reducing the power consumption of the fan 2 to achieve the effect of saving electricity. When the oil fume exhauster 1 is working, the microcontroller 5 inputs an electric signal to the frequency converter 4 to increase the output power of the frequency converter 4, thereby increasing the rotating speed of the fan 2 to increase the exhaust speed of the fan 2.

[0024] The opening and closing assembly is installed at the suction port of the range hood 1, which comprises a frame 6 installed at the suction port of the range hood 1, a plurality of louver blades 7 arranged in the frame 6, a connecting piece 9 connecting the louver blades 7 in series, a motor 8 driving the louver blades 7 to move or rotate, the connecting piece 9 connecting the plurality of louver blades 7 in series and connecting with the driving end of the motor 8, the motor 8 being electrically connected with the microcontroller 5, and the opening and closing assembly further comprising a winding rope device, a position limiter, a bracket, a buckle and other structures in addition to the main structures of the louver blades 7 and the motor 8, which are consistent with the structure of the existing electric louver window. The louver blades 7 are opened and closed and moved by the motor 8. When the range hood 1 is closed, the louver blades 7 are closed. When the range hood 1 is opened, the louver blades 7 are opened to allow the oil fume to pass through. When it is necessary to clean the oil stains inside the range hood 1, the buckle at the connection between the tail end of the louver blade 7 and the frame is opened. Then the louver blade 7 is moved to one side of the frame 6 by the motor 8, and the oil stains inside the range hood 1 are cleaned through the opening. When in use, the current sensor 3 checks the equipment start and stop signals, and the frequency converter 4 adjusts the rotating speed of the fan 2 according to the signals. When cleaning the oil stains, the louver blade 7 is moved to one side by the motor 8 to expose the range hood body.

[0025] In the embodiment, the direction assembly comprises a fan box for placing the fan 2, the fan box comprising a cuboid fan box framework 10 and a cover plate 11. The front, upper, rear and left / right four sides of the fan box are detachable rotary cover plates 12. The lower side of the fan box is a closed cover plate 13 integrally formed with the fan box framework 10. The cover plate 11 and the fan box framework 10 are provided with connecting holes 14. The connecting holes 14 are respectively located at the four corners of each end surface of the rotary cover plate 12 and at the four corners of each end surface of the fan box framework 10 corresponding to the rotary cover plate 12. The cover plate 11 can be installed on the fan box framework 10 by passing the bolts through the connecting holes 14. The opening size can be controlled according to the screwing depth of the bolts. If the bolts are screwed into the connecting holes 14, the cover plate 11 has no opening. If the bolts are partially screwed into the connecting holes 14, a partial opening is formed. In use, the appropriate air outlet direction can be rotated according to the actual situation. For example, if the front end surface of the fan box needs to be downwardly opened, the upper bolts of the front end surface are screwed into the connecting holes 14, and the lower bolts are partially screwed into the connecting holes 14, so that the direction of the front end surface downwardly opening is formed. Similarly, when the fan box is placed to the right, the rotary cover plate 12 can be changed to eight non-overlapping air outlet directions, i.e. front upward, front downward, upper front, upper rear, rear upward, rear downward, right upward and right downward. When the fan box is placed to the left, eight non-overlapping air outlet directions can also be obtained. Finally, 16 non-overlapping air outlet directions are obtained.

[0026] In the embodiment, the fan 2 is provided with two parallel support frames 15 at the bottom end, each support frame 15 is provided with mounting holes 16 at both ends, each end face of the fan box skeleton 10 is provided with threaded holes 17 corresponding to the positions of the mounting holes 16, the threaded holes 17 are at least four and the hole positions of the threaded holes 17 are arranged in a square shape, and the number of the threaded holes 17 is preferably four, so that the fan 2 can rotate horizontally at 0°, 90°, 180° and 270° in the fan box, and the position of the fan 2 in the fan box is adjusted according to the actual outlet direction, the fan 2 is installed on the fan box skeleton 10 by screws and the like, and cooperates with the rotating cover plate 12 to meet the requirements of the outlet.

[0027] In the embodiment, the adjusting assembly can be provided with multiple, and one or more adjusting assemblies can be set according to the actual situation.

[0028] In the embodiment, the range hood 1 is provided with a switch 18, and the microcontroller 5 is arranged in the switch 18. The switch 18 can be a common liquid crystal panel switch 18, and the specific model is not limited, which can be selected according to actual needs, such as ZZ-2020 model, iTC602TAT-2 model and the like. The output end of the switch 18 is connected with the input end of the microcontroller 5, and the range hood 1, the adjusting assembly and the opening and closing assembly are controlled by the microcontroller 5 in the switch 18.

[0029] In the embodiment, the range hood 1 is provided with a power line 19 connected with an external power source, and the output end of the power line 19 is connected with the input end of the switch 18. The external power source is connected through the power line 19 to provide power for the range hood 1.

[0030] In the embodiment, the connecting piece 9 includes a steel wire rope, which is used to connect the louver blades 7 in series and drive the louver blades 7 to rotate or move. The steel wire rope is usually arranged at both ends of the louver blades 7, and each end is provided with three steel wire ropes, two of which are used to open or close the louver blades 7, and one of which is used to expand or retract the louver blades 7.

[0031] In the embodiment, the fan 2 is a common centrifugal fan, and the specific model is not limited, which can be selected according to the actual situation, such as 4-72 centrifugal fan, B4-72 series centrifugal fan and the like.

[0032] In the embodiment, the current sensor 3 is a common current detection device, and the specific model is not limited, which can be selected according to the actual situation, such as AHKC-EB type current sensor, CSK3C type current sensor and the like.

[0033] In the embodiment, the microcontroller 5 is a common microcontroller device, and the specific model is not limited, and can be selected according to actual conditions, for example, the microcontroller 5 of the AT89C2051 model, the microcontroller of the AT89S52-24JU model and the like.

[0034] In the embodiment, the control circuit of the device is a common circuit in the circuit field, the device can be connected with an external power supply or a built-in battery through a power line to provide electric energy for the device, and a person skilled in the art can realize the device without redundancy.

[0035] In the embodiment, when in use, the external power supply is connected through the power line 19 to provide electric energy for the range hood 1, the switch 18 is opened, the microcontroller 5 receives and transmits the sending signal, when the range hood 1 does not work, the microcontroller 5 inputs the electric signal to the frequency converter 4, so that the input power of the frequency converter 4 is reduced, thereby reducing the rotating speed of the fan 2 and reducing the consumption of electric energy of the fan 2, so as to achieve the effect of saving electricity; when the range hood 1 is started to work, the microcontroller 5 inputs the electric signal to the frequency converter 4, so that the output power of the frequency converter 4 is increased, thereby the rotating speed of the fan 2 is increased, so as to increase the exhaust speed; when the direction assembly is installed, the position of the rotating cover plate 12 can be adjusted according to the actual air outlet, for example, if the front end surface of the fan box needs to be opened downward, the bolts above the front end surface are screwed into the connecting holes 14, and the bolts below are screwed into the connecting holes 14, so that the direction of the front end surface opening downward is formed; after the range hood 1 is used for a period of time, the motor 8 is controlled through the switch 18 to drive the louver blade 7 to move to one side of the frame 6 to be folded, so that the inside of the range hood 1 can be cleaned through the opening.

[0036] It is worth mentioning that: in the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited. In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, and for ordinary skilled persons in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific situation.

[0037] It is apparent for a person skilled in the art that the utility model patent is not limited to the details of the exemplary embodiments described above, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the utility model patent. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the utility model patent being defined by the appended claims rather than the above description, and it is therefore intended to embrace all changes and modifications that fall within the meaning and scope of the equivalences of the claims. Any reference signs in the claims should not be considered as limiting the claims concerned.

Claims

1. A variable frequency speed-adjustable commercial range hood, comprising a range hood, a fan, characterized in that: The oil fume exhauster comprises a regulating assembly for automatically regulating the wind force of the oil fume exhauster, an opening and closing assembly for opening or closing the air inlet of the oil fume exhauster, and a direction assembly for changing the direction of the air outlet of the oil fume exhauster, wherein the regulating assembly, the opening and closing assembly and the direction assembly are all installed on the oil fume exhauster. The regulating assembly comprises a current sensor for detecting the on-off state of the equipment, a frequency converter for regulating the wind speed of the oil fume exhauster, and a microcontroller, wherein the input end of the microcontroller is connected with the current sensor, and the output end of the microcontroller is connected with the frequency converter; the frequency converter is electrically connected with the microcontroller; the current sensor generates an induction signal by detecting the on-off state of the corresponding equipment, and transmits the induction signal to the microcontroller; the microcontroller receives the induction signal, and adjusts the output power of the frequency converter to control the rotating speed of the fan according to the induction signal. The opening and closing assembly is installed at the air inlet of the oil fume exhauster, and comprises a frame installed at the air inlet of the oil fume exhauster, a plurality of louver blades arranged in the frame, a connecting piece for connecting the louver blades in series, and a motor for driving the louver blades to move or rotate, wherein the connecting piece connects the louver blades in series in sequence, and is connected with the driving end of the motor; the motor is electrically connected with the microcontroller; during use, the current sensor checks the on-off signal of the equipment, and the frequency converter adjusts the rotating speed of the fan according to the signal; during cleaning of oil stains, the motor drives the louver blades to move to one side to be folded, and exposes the body of the oil fume exhauster.

2. The commercial range hood of claim 1, wherein: The direction assembly comprises a fan box for placing the fan, wherein the fan box comprises a cuboid fan box framework and a cover plate; the front, upper, rear and left / right four sides of the fan box are detachable rotary cover plates; the lower side of the fan box is a closed cover plate which is integrally formed with the fan box framework; the cover plate and the fan box framework are provided with connecting holes, which are respectively located at the four corners of each end surface of the rotary cover plate and at the four corners of each end surface of the fan box framework corresponding to the rotary cover plate.

3. The commercial range hood of claim 2, wherein: The bottom end of the fan is provided with two parallel support frames, each of which is provided with a mounting hole at both ends; each end surface of the fan box framework is provided with a threaded hole corresponding to the position of the mounting hole; the threaded hole is provided with at least four threaded holes, and the positions of the threaded holes are arranged in a square shape, so that the fan can be horizontally rotated by 0°, 90°, 180° and 270° in the fan box.

4. The variable frequency speed-adjustable commercial range hood according to claim 1, characterized in that: The regulating assembly can be provided with a plurality of regulating assemblies.

5. The variable frequency speed-adjustable commercial range hood according to claim 1, characterized in that: The oil fume exhauster is provided with a switch, and the microcontroller is arranged in the switch; the output end of the switch is connected with the input end of the microcontroller.

6. The variable frequency speed-adjustable commercial range hood according to claim 1, characterized in that: The oil fume exhauster is provided with a power line connected with an external power source, and the output end of the power line is connected with the input end of the switch.

7. The variable frequency speed-adjustable commercial range hood according to claim 1, characterized in that: The connecting piece comprises a steel wire.

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