CN211456663U

CN211456663U - Dust collector with pure hardware double-circuit protection and any component failure protection

Info

Publication number: CN211456663U
Application number: CN202020181835.2U
Authority: CN
Inventors: 陈晚雄; 张德才; 李世辉
Original assignee: Dongguan Sunstrong Electric Machinery Co ltd
Current assignee: Dongguan Sunstrong Electric Machinery Co ltd
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-09-08
Anticipated expiration: 2030-02-18

Abstract

The utility model discloses a pure hardware double-circuit protection and arbitrary components and parts failure protection dust catcher, it includes: an AC input module; the switching power supply is electrically connected with the AC input module; the 5V voltage stabilizing module is electrically connected with the switching power supply; the water pump driving circuit module is electrically connected with the switching power supply; a motor driving module including a suction motor driving circuit module and a brush motor driving circuit module both connected to the AC input module; the pure hardware double-path overcurrent protection circuit module comprises a first overcurrent protection circuit module and a second overcurrent protection circuit module which are connected in parallel, and the first overcurrent protection circuit module and the second overcurrent protection circuit module are both arranged between the motor driving module and the 5V voltage stabilizing module; the MCU main control module is connected with the water pump driving circuit module and the 5V voltage stabilizing module; and the switch control module comprises a first switch control unit and a second switch control unit which are connected in parallel, and the first switch control unit and the second switch control unit are both connected with the MCU main control module.

Description

Dust collector with pure hardware double-circuit protection and any component failure protection

The technical field is as follows:

the utility model relates to the technical field of dust collector products, in particular to a pure hardware double-circuit protection and any component failure protection dust collector.

Background art:

the vacuum cleaner can be divided into a vertical type, a horizontal type and a portable type according to the structure. The working principle of the dust collector is that the blades are driven by the motor to rotate at a high speed, air negative pressure is generated in the sealed shell, and dust is sucked.

The overcurrent protection in the control circuit board of the dust collector is only one path, and if the overcurrent protection of the path fails, the safety problem is possibly caused greatly. In addition, some elements of the switch control part in the control circuit board of the dust collector fail, which may cause the failure of the protection function, and the use is very inconvenient.

In view of the above, the present inventors propose the following.

The utility model has the following contents:

an object of the utility model is to overcome prior art not enough, provide a pure hardware double-circuit protection and arbitrary components and parts failure protection dust catcher.

In order to solve the technical problem, the utility model discloses a following technical scheme: this pure hardware double-circuit protection and arbitrary components and parts failure protection dust catcher includes: an AC input module; the switching power supply is electrically connected with the AC input module; the 5V voltage stabilizing module is electrically connected with the switching power supply; the water pump driving circuit module is electrically connected with the switching power supply; the motor driving module comprises a suction motor driving circuit module and a brush motor driving circuit module which are respectively connected with the suction motor and the brush motor, and the suction motor driving circuit module and the brush motor driving circuit module are both connected with the AC input module; the pure hardware double-path overcurrent protection circuit module comprises a first overcurrent protection circuit module and a second overcurrent protection circuit module which are connected in parallel, wherein the first overcurrent protection circuit module and the second overcurrent protection circuit module are both arranged between the motor driving module and the 5V voltage stabilizing module; the MCU main control module is connected with the water pump driving circuit module and the 5V voltage stabilizing module; and the switch control module comprises a first switch control unit and a second switch control unit which are connected in parallel, and the first switch control unit and the second switch control unit are both connected with the MCU master control module.

Further, in the above technical solution, the first overcurrent protection circuit module includes a first optical coupler, and a resistor R67, a resistor R78, a transistor Q7, a transistor Q8, a transistor Q12, and a MOS transistor Q1 connected to an output end of the first optical coupler, where the resistor R78 is connected to a b-pole of the transistor Q7, a C-pole of the transistor Q7 is connected to a b-pole of the transistor Q8, a C-pole of the transistor Q8 is connected to a b-pole of the transistor Q12, a C-pole of the transistor Q12 is connected to a G-pole of the MOS transistor Q1, a G-pole of the MOS transistor Q1 is connected to the MCU master control module after being connected to the resistor R36, the diode D7, the capacitor C21, and the resistor R38, and an input end of the first optical coupler is connected to the motor driving module.

Further, in the above technical solution, the second overcurrent protection circuit module includes a second optical coupler, and a resistor R47, a resistor R68, a transistor Q9, a transistor Q10, a transistor Q11, and a MOS transistor Q2 connected to an output end of the second optical coupler, where the resistor R68 is connected to a b-pole of the transistor Q9, a c-pole of the transistor Q9 is connected to a b-pole of the transistor Q10, a c-pole of the transistor Q10 is connected to a b-pole of the transistor Q11, a c-pole of the transistor Q11 is connected to a b-pole of the transistor Q2, a b-pole of the transistor Q2 is connected to the resistor R39 and then connected to the MCU master control module, and an input end of the second optical coupler is connected to the motor driving module.

Further, in the above technical solution, the first switch control unit includes a resistor R96, a first switch S1 connected to the resistor R96, and a resistor R95 connected in parallel to two ends of the resistor R96; the second switch control unit comprises a resistor R92, a second switch S2 connected with the resistor R92 and a resistor R91 connected with two ends of the resistor R92 in parallel; the resistor R96 and the resistor R92 are connected and grounded simultaneously, the first switch S1 and the second switch S2 are connected and connected with the first interface simultaneously, the MCU master control module is connected with a second interface circuit module, a second interface in the second interface circuit module is connected with the first interface, the second interface circuit module is provided with a detection switch port SW, and the detection switch port SW is connected with the MCU master control module.

Further, in the above technical solution, the switching power supply includes a rectifying unit connected to the AC input module, a pi-type filtering unit, a transformer, a chip control unit, an output filtering unit, and a 12V output terminal.

Further, in the above technical solution, the 5V voltage stabilizing module includes a voltage stabilizing chip, an input end of the voltage stabilizing chip is connected to the 12V output end after being connected to the resistor R29, an output end of the voltage stabilizing chip is a 5V output end, an input end of the voltage stabilizing chip is further connected to the capacitor C26 and the capacitor C27, and an output end of the voltage stabilizing chip is further connected to the capacitor C28 and the capacitor C29.

Further, in the above technical solution, the LED lighting module further includes a plurality of LED lamps connected in parallel and a third interface connected to the LED lamps; the MCU master control module is connected with an LED illumination control module, the LED illumination control module is connected with a fourth interface, and the fourth interface is connected with the third interface.

Furthermore, in the above technical solution, the lighting device further includes a plurality of LED indicator light modules, the LED indicator light modules are connected to a fifth interface, the fourth interface is connected to a plurality of sixth interfaces, and the fifth interface is connected to the sixth interfaces.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model discloses a pure hardware double-circuit overcurrent protection circuit module in is provided with first overcurrent protection circuit module and second overcurrent protection circuit module that connect in parallel each other to this reaches the purpose of double-circuit protection, and after the arbitrary inefficacy of all the ways in first overcurrent protection circuit module and second overcurrent protection circuit module, another way still can work, avoids appearing the safety problem that arouses after the overcurrent protection inefficacy, uses very safely, makes the utility model have extremely strong market competition; additionally, the utility model provides a switch control module is provided with mutual parallel connection's first switch control unit and second switch control unit, and after the switch became invalid all the way wantonly in first switch control unit and the second switch control unit, another way switch still can work, and it is more convenient to use, further strengthens the utility model discloses a market competition.

Description of the drawings:

fig. 1 is a circuit diagram (first part) of the present invention;

fig. 2 is a circuit diagram (second part) of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

As shown in fig. 1-2, the dust collector for pure hardware two-way protection and any component failure protection comprises: an AC input module 1; a switching power supply 2 electrically connected to the AC input module 1; the 5V voltage stabilizing module 3 is electrically connected with the switching power supply 2; the water pump driving circuit module 4 is electrically connected with the switching power supply 2; the motor driving module 5 comprises a suction motor driving circuit module 51 and a brush motor driving circuit module 52 which are respectively connected with the suction motor and the brush motor, and the suction motor driving circuit module 51 and the brush motor driving circuit module 52 are both connected with the AC input module 1; the pure hardware two-way overcurrent protection circuit module 6 comprises a first overcurrent protection circuit module 61 and a second overcurrent protection circuit module 62 which are connected in parallel, wherein the first overcurrent protection circuit module 61 and the second overcurrent protection circuit module 62 are both arranged between the motor driving module 5 and the 5V voltage stabilizing module 3; the MCU main control module 7 is connected with the water pump driving circuit module 4 and the 5V voltage stabilizing module 3, and the MCU main control module 7 is connected with the water pump driving circuit module 4 and the 5V voltage stabilizing module 3; and the switch control module 8 comprises a first switch control unit 81 and a second switch control unit 82 which are connected in parallel, and the first switch control unit 81 and the second switch control unit 82 are both connected with the MCU main control module 7. The utility model discloses a pure hardware double-circuit overcurrent protection circuit module 6 is provided with first overcurrent protection circuit module 61 and second overcurrent protection circuit module 62 that are connected in parallel with each other, thereby reaches the purpose of double-circuit protection, and after the first overcurrent protection circuit module 61 and second overcurrent protection circuit module 62 become invalid in arbitrary one way, another way still can work, avoid appearing the overcurrent protection and become invalid and cause the safety problem, use very safely, make the utility model have extremely strong market competition; additionally, the utility model provides a switch control module 8 is provided with mutual parallel connection's first switch control unit 81 and second switch control unit 82, and after the switch became invalid all the way wantonly in first switch control unit 81 and the second switch control unit 82, another way switch still can work, and it is more convenient to use, further strengthens the utility model discloses a market competition.

The first overcurrent protection circuit module 61 includes a first optical coupler 611, a resistor R67, a resistor R78, a transistor Q7, a transistor Q8, a transistor Q12, and a MOS transistor Q1, which are connected to the output end of the first optical coupler 611, the resistor R78 is connected to the b-pole of the transistor Q7, the C-pole of the transistor Q7 is connected to the b-pole of the transistor Q8, the C-pole of the transistor Q8 is connected to the b-pole of the transistor Q12, the C-pole of the transistor Q12 is connected to the G-pole of the MOS transistor Q1, the G-pole of the MOS transistor Q1 is connected to the MCU main control module 7 after being connected to the resistor R36, the diode D7, the capacitor C21, and the resistor R38, and the input end of the first optical coupler 611 is connected to the motor driving module. The second overcurrent protection circuit module 62 includes a second optical coupler 621, a resistor R47, a resistor R68, a transistor Q9, a transistor Q10, a transistor Q11, and a MOS transistor Q2, which are connected to the output end of the second optical coupler 621, the resistor R68 is connected to the b-pole of the transistor Q9, the c-pole of the transistor Q9 is connected to the b-pole of the transistor Q10, the c-pole of the transistor Q10 is connected to the b-pole of the transistor Q11, the c-pole of the transistor Q11 is connected to the b-pole of the transistor Q2, the b-pole of the transistor Q2 is connected to the MCU main control module 7 after being connected to the resistor R39, and the input end of the second optical coupler 621 is connected to the motor driving module 5. When any one of the first optical coupler 611, the resistor R67, the resistor R78, the triode Q7, the triode Q8, the triode Q12 and the MOS transistor Q1 fails, the overcurrent protection function of the circuit fails, but the second optical coupler 621, the resistor R47, the resistor R68, the triode Q9, the triode Q10, the triode Q11 and the MOS transistor Q2 can play the overcurrent protection function; similarly, any one of the second optical coupler 621, the resistor R47, the resistor R68, the transistor Q9, the transistor Q10, the transistor Q11 and the MOS transistor Q2 fails, and the first optical coupler 611, the resistor R67, the resistor R78, the transistor Q7, the transistor Q8, the transistor Q12 and the MOS transistor Q1 perform an overcurrent protection function, so that a dual-path protection purpose is achieved.

The first switch control unit 81 comprises a resistor R96, a first switch S1 connected with a resistor R96 and a resistor R95 connected with two ends of the resistor R96 in parallel; the second switch control unit 82 comprises a resistor R92, a second switch S2 connected with the resistor R92 and a resistor R91 connected with two ends of the resistor R92 in parallel; the resistor R96 and the resistor R92 are connected and grounded at the same time, the first switch S1 and the second switch S2 are connected and connected to the first interface 811 at the same time, the MCU main control module 7 is connected to the second interface circuit module 71, the second interface 711 of the second interface circuit module 71 is connected to the first interface 811, the second interface circuit module 71 has a detection switch port SW, and the detection switch port SW is connected to the MCU main control module 7. The MCU main control module 7 detects whether the voltage at the detection switch port SW is within the set range, and under normal conditions, the voltage Vsw at the detection switch port SW is 4.5V, and if the second interface circuit module 71 or the second interface 711 has a problem and the voltage is not within the range, the MCU main control module cannot be turned on according to the first switch S1 and the second switch S2. In operation, Vsw is detected to be outside the 4.5V range and immediately shut down. If any of the first switch S1, the resistor R96 and the resistor R95 fails, the switch fails, so that the switch cannot be turned on or off, if a problem is found in the operation of the machine, the switch can be turned off through the second switch S2 of the second switch control unit 82. Similarly, if any one of the second switch S2, the resistor R92 and the resistor R91 fails, the power can be turned off by the first switch S1 of the first switch control unit 81.

The switching power supply 2 comprises a rectifying unit 21 connected with the AC input module 1, a pi-type filtering unit 22, a transformer 23, a chip control unit 24, an output filtering unit 25 and a 12V output end 26.

The 5V voltage stabilizing module 3 includes a voltage stabilizing chip 31, an input end of the voltage stabilizing chip 31 is connected with the 12V output end 26 after being connected with the resistor R29, an output end of the voltage stabilizing chip 31 is a 5V output end, an input end of the voltage stabilizing chip 31 is further connected with the capacitor C26 and the capacitor C27, and an output end of the voltage stabilizing chip 31 is further connected with the capacitor C28 and the capacitor C29.

The utility model also comprises an LED lighting module 91, wherein the LED lighting module 91 comprises a plurality of LED lamps 911 connected in parallel and a third interface 912 connected with the LED lamps 911; the MCU main control module 7 is connected to an LED lighting control module 72, the LED lighting control module 72 is connected to a fourth interface 721, and the fourth interface 721 is connected to the third interface 912. That is to say, the utility model discloses still have the LED illumination function, it is more convenient to use.

The utility model discloses still including a plurality of LED pilot lamp module 93, this LED pilot lamp module 93 is connected with fifth interface 931, fourth interface 721 is connected with a plurality of sixth interfaces 913, sixth interface 913 is connected to fifth interface 931.

To sum up, the pure hardware dual-path overcurrent protection circuit module 6 of the utility model is provided with the first overcurrent protection circuit module 61 and the second overcurrent protection circuit module 62 which are connected in parallel, thereby achieving the purpose of dual-path protection, when any one of the first overcurrent protection circuit module 61 and the second overcurrent protection circuit module 62 fails, the other path can also work, thereby avoiding the safety problem caused by the failure of overcurrent protection, and the use is very safe, so that the utility model has strong market competitiveness; additionally, the utility model provides a switch control module 8 is provided with mutual parallel connection's first switch control unit 81 and second switch control unit 82, and after the switch became invalid all the way wantonly in first switch control unit 81 and the second switch control unit 82, another way switch still can work, and it is more convenient to use, further strengthens the utility model discloses a market competition.

Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.

Claims

1. Pure hardware double-circuit protection and any component failure protection dust catcher, its characterized in that: it includes:

an AC input module (1);

a switching power supply (2) electrically connected to the AC input module (1);

the 5V voltage stabilizing module (3) is electrically connected with the switching power supply (2);

the water pump driving circuit module (4) is electrically connected with the switching power supply (2);

the motor driving module (5) comprises a suction motor driving circuit module (51) and a brush motor driving circuit module (52) which are respectively connected with the suction motor and the brush motor, and the suction motor driving circuit module (51) and the brush motor driving circuit module (52) are both connected with the AC input module (1);

the pure hardware double-path overcurrent protection circuit module (6) comprises a first overcurrent protection circuit module (61) and a second overcurrent protection circuit module (62) which are connected in parallel, wherein the first overcurrent protection circuit module (61) and the second overcurrent protection circuit module (62) are arranged between the motor driving module (5) and the 5V voltage stabilizing module (3);

the MCU main control module (7), the MCU main control module (7) is connected with the water pump driving circuit module (4) and the 5V voltage stabilizing module (3);

and the switch control module (8) comprises a first switch control unit (81) and a second switch control unit (82) which are connected in parallel, and the first switch control unit (81) and the second switch control unit (82) are both connected with the MCU main control module (7).

2. The pure hardware two-way protection and any component failure protection dust collector of claim 1, characterized in that: the first overcurrent protection circuit module (61) comprises a first optical coupler (611), a resistor R67, a resistor R78, a triode Q7, a triode Q8, a triode Q12 and a MOS (metal oxide semiconductor) tube Q1, wherein the resistor R78 is connected with the b pole of the triode Q7, the C pole of the triode Q7 is connected with the b pole of the triode Q8, the C pole of the triode Q8 is connected with the b pole of the triode Q12, the C pole of the triode Q12 is connected with the G pole of the MOS tube Q1, the G pole of the MOS tube Q1 is connected with the MCU master control module (7) after being connected with the resistor R36, the diode D7, the capacitor C21 and the resistor R38, and the input end of the first optical coupler (611) is connected with the motor driving module (5).

3. A pure hardware two-way protection and any component failure protection dust collector as claimed in claim 2, wherein: the second overcurrent protection circuit module (62) comprises a second optical coupler (621), a resistor R47, a resistor R68, a triode Q9, a triode Q10, a triode Q11 and a MOS transistor Q2, wherein the resistor R68 is connected with a b pole of the triode Q9, a c pole of the triode Q9 is connected with a b pole of the triode Q10, a c pole of the triode Q10 is connected with a b pole of the triode Q11, a c pole of the triode Q11 is connected with a b pole of the triode Q2, a b pole of the triode Q2 is connected with the MCU master control module (7) after being connected with a resistor R39, and an input end of the second optical coupler (621) is connected with the motor driving module (5).

4. The pure hardware two-way protection and any component failure protection dust collector of claim 1, characterized in that: the first switch control unit (81) comprises a resistor R96, a first switch S1 connected with a resistor R96 and a resistor R95 connected with two ends of the resistor R96 in parallel; the second switch control unit (82) comprises a resistor R92, a second switch S2 connected with the resistor R92 and a resistor R91 connected with two ends of the resistor R92 in parallel; the resistor R96 and the resistor R92 are connected and grounded simultaneously, the first switch S1 and the second switch S2 are connected and connected with the first interface (811) simultaneously, the MCU master control module (7) is connected with the second interface circuit module (71), the second interface (711) in the second interface circuit module (71) is connected with the first interface (811), the second interface circuit module (71) is provided with a detection switch port SW, and the detection switch port SW is connected with the MCU master control module (7).

5. The pure hardware two-way protection and any component failure protection dust collector of claim 1, characterized in that: the switching power supply (2) comprises a rectifying unit (21) connected with the AC input module (1), a pi-type filtering unit (22), a transformer (23), a chip control unit (24), an output filtering unit (25) and a 12V output end (26).

6. A pure hardware two-way protection and any component failure protection dust collector as claimed in claim 5, wherein: the 5V voltage stabilizing module (3) comprises a voltage stabilizing chip (31), the input end of the voltage stabilizing chip (31) is connected with the 12V output end (26) after being connected with a resistor R29, the output end of the voltage stabilizing chip (31) is a 5V output end, the input end of the voltage stabilizing chip (31) is also connected with a capacitor C26 and a capacitor C27, and the output end of the voltage stabilizing chip (31) is also connected with a capacitor C28 and a capacitor C29.

7. A pure hardware two-way protection and any component failure protection dust collector as claimed in any one of claims 1 to 6, wherein: the LED lamp further comprises an LED lighting module (91), wherein the LED lighting module (91) comprises a plurality of LED lamps (911) connected in parallel and a third interface (912) connected with the LED lamps (911); the MCU main control module (7) is connected with an LED illumination control module (72), the LED illumination control module (72) is connected with a fourth interface (721), and the fourth interface (721) is connected with the third interface (912).

8. A pure hardware two-way protection and any component failure protection dust collector as claimed in claim 7, wherein: the LED lamp is characterized by further comprising a plurality of LED indicator light modules (93), the LED indicator light modules (93) are connected with a fifth interface (931), the fourth interface (721) is connected with a plurality of sixth interfaces (913), and the fifth interface (931) is connected with the sixth interfaces (913).