CN2162679Y

CN2162679Y - Automatic sound alarm device for dust full of dust collector

Info

Publication number: CN2162679Y
Application number: CN 92237011
Authority: CN
Inventors: 弓复兴; 安达
Original assignee: Xinle Precision Machine Co She
Current assignee: Xinle Precision Machine Co She
Priority date: 1992-11-09
Filing date: 1992-11-09
Publication date: 1994-04-20
Anticipated expiration: 2002-11-09

Abstract

The utility model relates to an automatic sound alarm device for dust full of a suction cleaner, which is composed of a negative pressure sensor, an alarm circuit, and an alarm (a loudspeaker). When the suction cleaner is fully clogged by the dust, the air pressure switch of the negative pressure sensor causes an LED to illuminate. When dust full clogging time reaches more than 10 seconds, a control circuit causes a sound circuit to sound for alarm (speech or music). Simultaneously, an electric fan is stalled, and namely users are informed to clean the dust in time. The electric fan of the suction cleaner is also protected.

Description

Automatic sound alarm device for dust full of dust collector

The utility model is the dust-full automatic audio alerting unit of suction cleaner.Specifically, when suction cleaner had been expired or seriously stopped up at dust, the baroswitch of negative pressure transducer ignited light emitting diode; it is about more than 10 seconds the time to delay time through delay circuit again, and the control acoustics circuit is reported to the police, and informs that the user in time clears up dust; make the electric fan stall simultaneously, protected electric fan.

In the present common suction cleaner, generally do not fill the dirt indicating device, whether dust has been expired the user and can not in time have been known in the dust pocket.Though some suction cleaner has been adorned full dirt indicating device, also be to use up demonstration or show that with the cylindrical mobile piston of being with look the demonstration time is very short, and be demonstration at intermittence at random, therefore the user can not see at any time when dust suction and find, and burns electric fan because of dust overfill or foreign matter stop up sometimes.

The purpose of this utility model is to overcome the shortcoming of the full dirt indicator of above-mentioned suction cleaner; provide a kind of dust-full at suction cleaner, stop up when reaching more than 10 seconds; can give a warning the automatically language or the music alarm sound are protected the dust-full automatic alarm sound device of suction cleaner of electric fan automatically.

The purpose of this utility model is achieved in that the baroswitch of the negative pressure transducer of working as suction cleaner is in certain negative pressure, reach certain hour as lasting closure under the 12000pa effect, as more than 10 seconds the time, make the relay adhesive through the time base circuit time-delay, drive acoustics circuit and report to the police.Electric fan stall simultaneously.

Employed warning device in the prior art, compole is short during demonstration, and is that random intervals shows that the user can not observe at any time, therefore can not in time find to burn electric fan because of dust overfill or foreign matter stop up.The utility model adopts language or music alarm can monitor at any time and need not observe, and protects electric fan automatically.Advantage that the utility model is compared with prior art had or good effect are conspicuous.

Fig. 1 is the dust-full automatic audio alerting unit synoptic diagram of suction cleaner.

Fig. 2 is the dust-full automatic audio alerting unit control circuit functional-block diagram of suction cleaner.

Fig. 3 is the dust-full automatic audio alerting unit control circuit schematic diagram of suction cleaner.

Below in conjunction with accompanying drawing the utility model is elaborated:

Fig. 1 shows position and the effect of the dust-full automatic audio alerting unit of suction cleaner in suction cleaner.This device is made of negative pressure transducer 4, control circuit board 5 and loudspeaker 3, and negative pressure transducer 4 is connected with dust pocket 1 through conduit 2.

Fig. 1 (I amplification) shows the structure of negative pressure transducer.A leather bag 15 is arranged in the bottom of negative pressure transducer, the bottom of leather bag contacts with copper film sheet 14, a contacted compression spring 13 is arranged on the copper film sheet, one end of compression spring is connected with binding post 11, at the center of compression spring 13 a taper contact post 10 is arranged, the contact post is connected with light emitting diode 7.

When the dust in the dust pocket 1 blocks up completely, negative pressure in the dust pocket is determined value is reduced, when negative pressure certainly drops to 12000pa to value, this negative pressure is through connecting the conduit 2 of negative pressure transducer 4 and dust pocket 1, the negative pressure chamber's 12 interior negative pressure that make negative pressure transducer 4 ［ see that I amplifies ］ certainly also reach 12000pa to value, this negative pressure is inhaled the resistance that moves leather bag 15 and overcome compression spring 13 makes copper film sheet 14 contact with contact post 10, this

moment connection terminal

8,9 voltage is through internal interface terminal 11, compression spring 13, copper film sheet 14, contact post 10 is connected the output control signal ignites light emitting diode 7, this signal is connected the control circuit of control circuit board 5, igniting light emitting diode 7 continuously when reaching more than 10 seconds, loudspeaker 3 usefulness language or music alarms make electric fan M stall simultaneously.

Fig. 3 is the dust-full automatic audio alerting unit control circuit figure of suction cleaner.Negative pressure transducer switch one end ground connection, another termination R3, R6.Another termination direct supply of R3 and the positive pole of C3, the minus earth of C3.Another termination

N1 input end

2,6 of R6 connects the negative pole of C4 simultaneously, and the positive pole of C4 connects direct supply.5 of N1 meets C5, the other end ground connection of C5.4,8 of N1 meets direct supply and K2-1, another termination C6 positive pole of K2-1, C6 minus earth.5 of N1 meets C5, the other end ground connection of C5,1 ground connection of N1.The output terminal 3 of N1 connects the anodal and V8 negative pole of V7.The plus earth of V8.The V7 negative pole meets K1, K1 and K2 polyphone ground connection.The V7 negative pole connects R7 and C6 positive pole.Another termination V9 negative pole of R7, the positive pole of N2, the positive pole of C7, the anodal and C7 negative pole ground connection in parallel of V9.The minus earth of N2.The output terminal S of N2 meets R8 and C8 positive pole, C9.The other end ground connection of R8 and C9.The negative pole of C8 connects the input end 3 of R9 and N3.The other end ground connection of R9.2 ground connection of N3,1 of N3 connects the C10 positive pole, and the negative pole of C10 meets 8 of N3,4 ground connection of N3,6 of N3 connects the positive pole of C6, and the output terminal 5 of N3 connects the positive pole of C11.The negative pole of C11 connects loudspeaker, the other end ground connection of loudspeaker.C1 is in parallel with power switch.A termination C1 and the power switch K of electric fan M, the other end of electric fan M meets R3, V2, V1 through winding.Another termination slip pot R1, the R4 of V2 is connected with power supply simultaneously.Another termination C2 of R3, another termination R2 and the K1-1 of C2.The other end of K1-1 is connected with the other end of V1.Another termination slip pot R1 of R2 and the other end of R4 connect the sliding end of slip pot R4 simultaneously.

When negative pressure transducer negative pressure switch junction closure, the light emitting diode of negative pressure transducer is luminous, this moment, capacitor C4 charged through R6, when 6 the voltage of basic at that time circuit N1 reaches setting, the output point 3 of N1 is noble potential, relay K 1, K2 power up at this moment, and K2 relay normally open contact K2-1 closure powers up acoustics circuit N2 and power amplifier N3, and the alerting signal of acoustics circuit N2 promotes the loudspeaker sounding after power amplifier N3 amplifies.The normally closed contact K1-1 of K1 disconnects the The Trigger of Bidirectional Triode Thyristor circuit of electric fan alignment circuit simultaneously, and electric fan has been protected in the electric fan stall.After the user hears alarm sound, total power switch K can be turned off, reuse behind the dust for clearance.

Two effects are arranged after the normal opened contact K2-1 closure of this circuit relay electrical equipment K2: the one, acoustics circuit is powered up, the 2nd, make the line of relay K 1, K2 embrace continuous powering up and self-insurance, make the loudspeaker sounding, when having avoided disconnecting because of the negative pressure transducer negative pressure switch, N1 time base circuit output point 3 becomes electronegative potential and causes K1, K2 outage, the interrupted sounding of loudspeaker.

Claims

1, the dust-full automatic audio alerting unit of suction cleaner, it is made up of negative pressure transducer, warning circuit and alarm, it is characterized in that warning circuit is by time base circuit N ₁, control circuit, acoustics circuit N ₂With power amplifier N ₃Form.

2, according to the described negative pressure transducer of claim 1, it is characterized in that a leather bag 15 is arranged in the bottom of negative pressure transducer, the bottom of leather bag contacts with copper film sheet 14, a contacted compression spring 13 is arranged on the copper film sheet, one end of compression spring is connected with binding post 11, at the center of compression spring 13 a tapered contact post 10 is arranged, contact post 10 is connected with light emitting diode 7.

3, according to the described warning circuit of claim 1, the annexation that it is characterized in that warning circuit and negative pressure transducer and alarm is switch one an end ground connection, another termination R ₂, R ₆R ₂Another termination direct supply and C ₂Positive pole, C ₂Minus earth, R ₆Another termination N ₁Input end 2,6 meets C simultaneously ₄Negative pole, C ₄Positive pole connect direct supply, N ₁5 meet C ₅, C ₅Other end ground connection.N ₁4,8 meet direct supply and K ₂-1, K ₂Another termination C of-1 ₆Positive pole, C ₆Minus earth, N ₁5 meet C ₅, C ₅Other end ground connection, N ₁1 ground connection, N ₁Output terminal 3 meet V ₇Positive pole and V ₆Negative pole, V ₈Plus earth, V ₇Negative pole meets K ₁, K ₁With K ₂Series connection ground connection.V ₇Negative pole meets R ₇And C ₆Positive pole, R ₇Another termination V ₉Negative pole, N ₂Positive pole, C ₇Positive pole, V ₉Positive pole and C ₇Negative pole ground connection in parallel, N ₂Minus earth.N ₂Output terminal S meet R ₈And C ₈Anodal, C ₉, R ₈And C ₉Other end ground connection, C ₈Negative pole meet R ₉And N ₃Input end 3, R ₉Other end ground connection, N ₂2 ground connection, N ₂1 meet C ₁₀Positive pole, C ₁₀Negative pole meet N ₃8, N ₃4 ground connection, N ₃6 meet C ₆Positive pole, N ₃Output terminal 5 meet C ₁₁Positive pole, C ₁₁Negative pole connect loudspeaker, the other end ground connection of loudspeaker, C ₁In parallel with power switch, the termination C of electric fan M ₁With power switch K, the other end of electric fan M meets R through winding ₂, V ₂, V ₁, V ₂Another termination slip pot R ₁.R ₄Simultaneously be connected R with power supply ₂Another termination C ₂, C ₂Another termination R ₂And K ₁-1, K ₁-1 the other end and V ₁The other end be connected R ₂Another termination slip pot R ₁And R ₄The other end, meet slip pot R simultaneously ₄Sliding end.