CN212028138U - Touch shutdown of direct-current variable-frequency fan - Google Patents
Touch shutdown of direct-current variable-frequency fan Download PDFInfo
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- CN212028138U CN212028138U CN202020362899.2U CN202020362899U CN212028138U CN 212028138 U CN212028138 U CN 212028138U CN 202020362899 U CN202020362899 U CN 202020362899U CN 212028138 U CN212028138 U CN 212028138U
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Abstract
The utility model relates to a fan product technical field especially relates to a direct current variable frequency fan touch is shut down. Including the fan body, the fan body includes fan screen panel, a set of flabellum, aircraft nose and base, the place ahead of a set of flabellum and aircraft nose is connected, and the base is connected with the below of aircraft nose, and fan screen panel surface is equipped with touch-sensitive piece, the aircraft nose is connected with switching power supply, switching power supply is connected with the power cord, the free end of power cord is connected with power plug, be equipped with the touch in the aircraft nose and shut down, the touch shut down with touch-sensitive piece is connected, the touch is shut down including FOC master control and brushless motor, and the FOC master control is connected with brushless motor electricity, and brushless motor includes rotor, stator and inverter circuit, brushless motor is connected with the pivot, the other end and the flabellum fixed connection of this pivot, the: the direct current variable frequency fan is high in use safety coefficient and is stopped by touch.
Description
Technical Field
The utility model relates to a fan product technical field especially relates to a direct current variable frequency fan touch is shut down.
Background
The advantage of frequency conversion fan: energy and electricity conservation: the compressor is not frequently started due to the action of the internal frequency converter, and the starting current is also very small; the noise is low.
The direct current frequency conversion technology is the energy-saving technology which is the hottest at present, and refers to the process of achieving the purpose of controlling the rotating speed of a rotor by adjusting the frequency of direct current conduction, and direct current speed change adopts a direct current motor. The direct current motor only consumes one coil, and the alternating current frequency conversion only consumes two coils, so the direct current speed change is more energy-saving than the alternating current frequency conversion.
However, the fan has the gap problem of the fan mesh enclosure, the mesh enclosure is too large and unsafe, the fan gap is too small, the refrigerating effect is not good enough, but the fan is particularly suitable for children, the curiosity and the psychological are heavy, the hand is easy to stretch into the fan mesh enclosure, and safety accidents are caused, so that the fan with higher safety factor is needed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves: the direct current variable frequency fan is high in use safety coefficient and is stopped by touch.
The basic scheme of the utility model is that: direct current frequency conversion fan touch is shut down, including the fan body, the fan body includes fan screen panel, a set of flabellum, aircraft nose and base, the place ahead of a set of flabellum and aircraft nose is connected, the base is connected with the below of aircraft nose, fan screen panel surface is equipped with touch-sensitive piece, the aircraft nose is connected with switching power supply, switching power supply is connected with the power cord, the free end of power cord is connected with power plug, be equipped with the touch in the aircraft nose and shut down, the touch shut down with touch-sensitive piece is connected, the touch is shut down including FOC main control and brushless motor, and the FOC main control is connected with the brushless motor electricity, just brushless motor includes rotor, stator and inverter circuit, brushless motor is connected with the pivot, the other end and the flabell.
Further, the power plug is connected with a 220VAC main power supply.
The total power supply is 220V alternating current.
Further, the frequency conversion circuit comprises a power three-phase bridge, the power three-phase bridge is connected with the 220VAC main power supply, and an AC-DC rectification filtering module is connected between the 220VAC main power supply and the power three-phase bridge.
The brushless motor is connected with the 220VAC main power supply through a power three-phase bridge, the power three-phase bridge is a three-phase rectifier bridge and is suitable for a high-power circuit, and the AC-DC rectifier filter module converts alternating current output by the 220VAC main power supply into direct current to achieve the energy-saving effect.
Further, the frequency conversion circuit further comprises a touch module, the touch module is installed on the fan mesh enclosure and comprises an MCU (micro control unit), the touch module is connected with the FOC master control, one end of the touch module is connected with the touch induction sheet, the touch module is connected with a 220VAC main power supply through an AC-DC rectification filtering module, and a DC-DC isolation switch power supply is connected between the touch module and the AC-DC rectification filtering module.
The touch sensing sheet receives a touch signal and feeds the touch signal back to the touch module, the touch module feeds the signal back to the FOC main control, the FOC main control controls the brushless motor to stop running, and the DC-DC isolating switch power supply is used for ensuring the safety of maintenance circuits such as installers, maintenance personnel and the like.
Further, a control panel is connected between the touch module and the FOC master control, and the control panel is arranged on the base.
The control panel and the FOC main control are used for adjusting the rotating speed and the wind power of the fan through the operation of the control panel.
Furthermore, a fan switch key and a fan wind power multi-gear adjusting key are arranged on the control panel.
The fan switch key controls the fan switch, and the fan wind power multi-gear adjusting key adjusts the wind power and the wind speed.
Furthermore, a wireless receiving module is arranged on the control panel.
The wireless receiving module is arranged, and the switch of the fan and the rotating speed of the fan can be operated by utilizing the wireless remote controller to adjust the wind power.
Further, the control panel is connected with the FOC master control through the optical coupling isolation module.
Utilize opto-coupler isolation module can play the isolation of signal, because the opto-coupler is unidirectional transmission, make input and output realize keeping apart, output signal does not have the influence to the input, the interference killing feature who uses opto-coupler isolation module is strong, job stabilization, prevent to damage the FOC master control, opto-coupler isolation module can also play level conversion effect, the level that makes FOC master control output reaches the input and is the level that control panel needs, can play the conversion effect of level through the opto-coupler.
Further, the frequency conversion circuit further comprises a buzzer, the buzzer is arranged in the handpiece, the FOC main control is further connected with a DC-DC non-isolated switch power supply, the FOC main control, the DC-DC non-isolated switch power supply and the buzzer are connected into a closed circuit, and the DC-DC non-isolated switch power supply is connected with the 220VAC main power supply through an AC-DC rectification filtering module.
Set up bee calling organ in the aircraft nose, and FOC master control, DC-DC non-isolator power and bee calling organ, remaining module does not influence bee calling organ's normal use, receives touch signal when the FOC master control, controls brushless motor and stops the operation, and the FOC master control gives bee calling organ with signal transmission, and bee calling organ takes place work, plays the warning effect.
Further, the FOC master control is also connected with the 220VAC main power supply through a synchronous motor.
The power factor of the synchronous motor can be adjusted, the synchronous motor can be applied to improve the operation efficiency in occasions where speed regulation is not required, and the synchronous motor is used for ensuring that the FOC master control is not influenced by the reverse direction of other modules.
The utility model discloses a theory of operation and advantage lie in: the fan is characterized in that a touch sensing sheet is arranged on the fan body, when the fan is started, the frequency conversion circuit is communicated, all the modules are in a state of being connected with a main power supply, the touch sensing sheet receives touch signals and feeds the touch signals back to the touch module, the touch module feeds the signals back to the FOC main control, the FOC main control controls the brushless motor to stop running, the DC-DC isolating switch power supply is used for ensuring the safety of maintenance circuits such as installers and maintenance personnel, an AC-DC rectifying and filtering module is installed in the circuit, and the AC-DC rectifying and filtering module converts alternating current output by the 220VAC main power supply into direct current to achieve the energy-saving.
Drawings
FIG. 1 is a three-dimensional structure diagram of the touch shutdown of the DC variable frequency fan of the present invention;
FIG. 2 is a three-dimensional structure diagram of the touch shutdown of the direct current variable frequency fan of the present invention;
FIG. 3 is a topological diagram of the touch shutdown of the DC variable frequency fan of the present invention;
FIG. 4 is the schematic diagram of the frequency conversion circuit of the touch shutdown of the DC frequency conversion fan of the present invention
Wherein reference numerals referred to in the drawings include: the fan comprises a fan body 1, a fan mesh enclosure 101, fan blades 102, a machine head 103, a base 104, a brush holder 105, a rear cover 106, a front cover 107, a rotor 108, a rotating shaft 109, a supporting portion 110, a power line 111, a main power supply 201, an AC-DC rectification filtering module 202, a DC-DC non-isolated switch power supply 203, a buzzer 204, an FOC main control 205, a half-bridge drive 206, a power three-phase bridge 207, a brushless motor 208, a synchronous motor 209, an optical coupling isolation module 210, a DC-DC isolated switch power supply 211, a control panel 212, a wireless remote controller 213 and a touch module 214.
Detailed Description
A direct current frequency conversion fan touch shutdown comprises a fan body 1, the fan body 1 comprises a fan guard 101, a set of fan blades 102, a machine head 103 and a base 104, the set of fan blades 102 is connected with the front of the machine head 103, the base 104 is connected with the lower part of the machine head 103, a touch sensing sheet is arranged on the outer surface of the fan guard 101, the machine head 103 is connected with a switch power supply, the switch power supply is connected with a power line 111, a power plug is connected with the free end of the power line 111, the power plug is connected with a 220VAC main power supply 201, the main power supply 201 is 220V alternating current, a touch shutdown is arranged in the machine head 103 and is connected with the touch sensing sheet, the touch shutdown comprises an FOC main control 205 and a brushless motor 208, the FOC main control 205 is electrically connected with the brushless motor 208, the brushless motor 208 comprises a front cover 107 plate, a brush holder 105, a, the other end of the rotating shaft 109 is fixedly connected with the fan blade 102, and the bottom of the brushless motor 208 is further provided with a supporting portion 110.
The frequency conversion circuit comprises a power three-phase bridge 207, the power three-phase bridge 207 is connected with a 220VAC main power supply 201, an AC-DC rectification filtering module 202 is connected between the 220VAC main power supply 201 and an FOC main control 205, and a half-bridge drive 206 is connected between the FOC main control 205 and the power three-phase bridge 207.
The frequency conversion circuit further comprises a touch module 214, the touch module 214 is installed on the fan mesh enclosure 101, the touch module 214 comprises an MCU (micro control unit), the touch module 214 is connected with the FOC main control 205, one end of the touch module 214 is connected with a touch sensing sheet, the touch module 214 is connected with a 220VAC main power supply 201 through an AC-DC rectifying and filtering module 202, and a DC-DC isolating switch power supply 211 is connected between the touch module 214 and the AC-DC rectifying and filtering module 202.
The touch sensing sheet receives a touch signal and feeds the touch signal back to the touch module 214, the touch module 214 feeds the signal back to the FOC main control 205, the FOC main control 205 controls the brushless motor 208 to stop running, and the DC-DC isolating switch power supply 211 is used for ensuring the safety of maintenance circuits such as installers, maintenance personnel and the like.
A control panel 212 is further connected between the touch module 214 and the FOC main control 205, the control panel 212 is arranged on the base 104, and the control panel 212 and the FOC main control 205 regulate the rotating speed and the wind power of the fan through the operation of the control panel 212; the control panel 212 is provided with a fan on-off key and a fan wind power multi-gear adjusting key, the fan on-off key controls a fan switch, the fan wind power multi-gear adjusting key adjusts the wind speed, the control panel 212 is provided with a wireless receiving module, the wireless receiving module is arranged, the wireless remote controller 213 can be used for operating the switch and the fan rotating speed of the fan, the wind power is adjusted, and the control panel 212 is connected with the FOC main control 205 through the optical coupling isolation module 210.
Utilize opto-coupler isolation module 210 can play the isolation of signal, because the opto-coupler is unidirectional transmission, make input and output realize keeping apart, output signal does not have the influence to the input, the interference killing feature who uses opto-coupler isolation module 210 is strong, job stabilization, prevent to damage FOC main control 205, opto-coupler isolation module 210 can also play the level conversion effect, the level that makes FOC main control 205 output reaches the input and is the level that control panel 212 needs, can play the conversion effect of level through the opto-coupler.
The frequency conversion circuit further comprises a buzzer 204, the buzzer 204 is arranged in the handpiece 103, the FOC main control 205 is further connected with a DC-DC non-isolated switch power supply 203, the FOC main control 205, the DC-DC non-isolated switch power supply 203 and the buzzer 204 are connected to form a closed circuit, and the DC-DC non-isolated switch power supply 203 is connected with a 220VAC main power supply 201 through an AC-DC rectifying and filtering module 202.
The buzzer 204 is arranged in the machine head 103, the FOC main control 205, the DC-DC non-isolated switch power supply 203 and the buzzer 204 are arranged, other modules do not influence the normal use of the buzzer 204, when the FOC main control 205 receives a touch signal, the brushless motor 208 is controlled to stop running, the FOC main control 205 transmits the signal to the buzzer 204, and the buzzer 204 works to play a warning role.
The FOC master control 205 is also connected with a 220VAC main power supply 201 through a synchronous motor 209, the power factor of the synchronous motor 209 can be adjusted, the running efficiency can be improved by applying the synchronous motor 209 on occasions where speed regulation is not required, and the FOC master control 205 is ensured not to be reversely influenced by other modules by utilizing the synchronous motor 209.
The fan body 1 is provided with a touch sensing sheet, when the fan is started, the frequency conversion circuit is communicated, all the modules are in a state of being connected with the main power supply 201, the touch sensing sheet receives touch signals and feeds the touch signals back to the touch module 214, the touch module 214 feeds the signals back to the FOC main control 205, the FOC main control 205 controls the brushless motor 208 to stop running, the DC-DC isolating switch power supply 211 is used for ensuring the safety of maintenance circuits such as installers and maintenance personnel, an AC-DC rectifying and filtering module 202 is installed in the circuit, and the AC-DC rectifying and filtering module 202 converts alternating current output by the 220VAC main power supply 201 into direct current, so that the energy-saving effect is achieved.
The load characteristics of the brushless motor 208 are shown in the following table:
when in use, attention is required: (1) when installing and wiring the brushless motor, please pay attention to not damage the lead of the brushless motor. Otherwise, electric shock, burning, and fire may be caused.
(2) The brushless motor can not be disassembled, repaired or modified, otherwise the brushless motor may be abnormally operated and can not meet the performance required by specification.
(3) Brushless motors are not used in states other than the rated voltage, which may otherwise cause the brushless motor to fail or break down, and may generate leakage current or electric shock.
(4) In the electrifying process, the rotating part of the brushless motor can not be touched, otherwise, the damage can be caused.
The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (10)
1. Direct current frequency conversion fan touch is shut down, its characterized in that: the electric fan comprises a fan body (1), wherein the fan body (1) comprises a fan mesh enclosure (101), a set of fan blades (102), a machine head (103) and a base (104), the front of the set of fan blades (102) and the machine head (103) is connected, the base (104) is connected with the lower portion of the machine head (103), a touch induction sheet is arranged on the outer surface of the fan mesh enclosure (101), the machine head (103) is connected with a switching power supply, the switching power supply is connected with a power line (111), the free end of the power line (111) is connected with a power plug, a touch shutdown is arranged in the machine head (103), the touch shutdown is connected with the touch induction sheet and comprises an FOC main control (205) and a brushless motor (208), the FOC main control (205) is electrically connected with the brushless motor (208), and the brushless motor (208) comprises a rotor (108), a stator and a, the brushless motor (208) is connected with a rotating shaft (109), and the other end of the rotating shaft (109) is fixedly connected with the fan blade (102).
2. The direct current variable frequency fan touch shutdown as recited in claim 1 further comprising: the power plug is connected with a 220VAC main power supply (201).
3. The direct current variable frequency fan touch shutdown as recited in claim 2, further comprising: the frequency conversion circuit comprises a power three-phase bridge (207), the power three-phase bridge (207) is connected with the 220VAC main power supply (201), and an AC-DC rectifying and filtering module (202) is connected between the 220VAC main power supply (201) and the FOC main control (205).
4. The direct current variable frequency fan touch shutdown as recited in claim 3, further comprising: the frequency conversion circuit further comprises a touch module (214), the touch module (214) is installed on the fan mesh enclosure (101), the touch module (214) comprises an MCU (microprogrammed control unit), the touch module (214) is connected with the FOC main control unit (205), one end of the touch module (214) is connected with the touch induction sheet, the touch module (214) is connected with a 220VAC main power supply (201) through an AC-DC rectifying and filtering module (202), and a DC-DC isolating switch power supply (211) is connected between the touch module (214) and the AC-DC rectifying and filtering module (202).
5. The direct current variable frequency fan touch shutdown as recited in claim 4, further comprising: still be connected with control panel (212) between touch module (214) and FOC master control (205), control panel (212) set up with on base (104).
6. The direct current variable frequency fan touch shutdown of claim 5, wherein: the control panel (212) is provided with a fan switch key and a fan wind power multi-gear adjusting key.
7. The direct current variable frequency fan touch shutdown of claim 6, wherein: and a wireless receiving module is arranged on the control panel (212).
8. The direct current variable frequency fan touch shutdown of claim 7, wherein: the control panel (212) is connected with an FOC main control (205) through an optical coupling isolation module (210).
9. The direct current variable frequency fan touch shutdown of claim 8, wherein: the frequency conversion circuit further comprises a buzzer (204), the buzzer (204) is arranged in the handpiece (103), the FOC main control (205) is further connected with a DC-DC non-isolation switch power supply (203), the FOC main control (205), the DC-DC non-isolation switch power supply (203) and the buzzer (204) are connected into a closed circuit, and the DC-DC non-isolation switch power supply (203) is connected with the 220VAC main power supply (201) through an AC-DC rectification filtering module (202).
10. The direct current variable frequency fan touch shutdown as recited in claim 9, further comprising: the FOC master control (205) is also connected with the 220VAC main power supply (201) through a synchronous motor (209).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020362899.2U CN212028138U (en) | 2020-03-20 | 2020-03-20 | Touch shutdown of direct-current variable-frequency fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020362899.2U CN212028138U (en) | 2020-03-20 | 2020-03-20 | Touch shutdown of direct-current variable-frequency fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212028138U true CN212028138U (en) | 2020-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020362899.2U Active CN212028138U (en) | 2020-03-20 | 2020-03-20 | Touch shutdown of direct-current variable-frequency fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212028138U (en) |
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2020
- 2020-03-20 CN CN202020362899.2U patent/CN212028138U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210126 Address after: 528000 No.7, Fulu village committee, Leliu street, Shunde District, Foshan City, Guangdong Province Patentee after: Foshan city Shunde District fulv Zhengyang Electrical Appliance Co.,Ltd. Address before: 528322 No.44 Beiao street, Fulu village, Leliu street, Shunde District, Foshan City, Guangdong Province Patentee before: Liao Chuhong |