CN102350398B - Paper shredder with touch protection function - Google Patents
Paper shredder with touch protection function Download PDFInfo
- Publication number
- CN102350398B CN102350398B CN 201110252331 CN201110252331A CN102350398B CN 102350398 B CN102350398 B CN 102350398B CN 201110252331 CN201110252331 CN 201110252331 CN 201110252331 A CN201110252331 A CN 201110252331A CN 102350398 B CN102350398 B CN 102350398B
- Authority
- CN
- China
- Prior art keywords
- power supply
- shredder
- touch
- motor
- touches
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a paper shredder with a touch protection function. The paper shredder comprises an electrical control component and a power supply; the electrical control component comprises a touch induction sampler, an induction signal processing circuit, a protection signal generation circuit, an electric motor and an operation switch of the electric motor which are sequentially cascaded; the paper shredder is characterized in that the touch induction sampler is at least one unipolar induction sheet, is made of a conducting material, has an arbitrary shape, and is adhered to an inner surface of a paper inlet of an insulation panel of the paper shredder; and when an organism approaches, distributed capacitance between the unipolar induction sheet and a common land is changed. A unipolar contact insulation touch mode is adopted by the touch induction sampler; and the touch induction sampler has novel and fashionable design, is low in cost and high in practicability, and low in cost, is not influenced by surrounding electromagnetic environment, and is very sensitive to induction of an organism, and can normally implement protection even if the surface of an insulation panel of which thickness is at least 20mm is dirty and oxidized or an operator wears gloves, and is suitable for a paper shredder with a high-voltage and low-voltage insulation or common ground power supply.
Description
Technical field
The present invention relates to cutter or other cutting or tearing parts particularly to relate to the fragmental broken facility of material a kind of with the shredder that touches defencive function.
Background technology
Adopt the shredder of open type paper feed port, have potential safety hazard, when particularly the child operated, finger may insert paper feed port because of carelessness and touch blade, causes accidental injury.Even torn wound by the machine suction, consequence is hardly imaginable.The protection mode that simple caution indicates and limits the paper feed port size, reliability is poor; And adopt conductor material to do the paper feed port parts, close down the mode of motor with control by human body resistance or human biological electricity induced signal, as Chinese patent CN101032706A disclosed " safe shredder and paper feed port touch induction device thereof ", CN102039215A disclosed " the shredder control system of response tactile sensor ", and " the shredder touching safety device " of CN2915259U bulletin, the hand that requires that has must be run into two conductor assemblies that separate simultaneously, human body resistance could be introduced electric circuit inspection, when hand is only met one of them conductor assembly, then do not have protective effect, and do not have protective effect after having worn insulating glove yet; The periphery electromagnetic environment that is subjected to that has influences greatly, and the probability that leaks protection and mistake protection is than higher; And, adopt conductor material to do the shredder that the paper feed port parts are not suitable for general resistance-capacitance depressurization power supply, its cost also influences the touch effect also than higher after the oxidation.
Summary of the invention
Technical problem to be solved by this invention is the defective that remedies above-mentioned prior art, provides a kind of improved band to touch the shredder of defencive function.
Technical problem of the present invention is solved by the following technical programs.
This band touches the shredder of defencive function; comprise electric controling part and power supply; described electric controling part comprises that touch sensible sampler, induced signal treatment circuit, the guard signal of cascade successively produce circuit, motor and running switch thereof; described power supply comprises motor power supply and all the other control assembly low-voltage dc power supplies, and described motor operation switch is connected described motor and described motor is used between the power supply.
The characteristics that this band touches the shredder of defencive function are:
Described touch sensible sampler is at least one unipolar induction sheet, described unipolar induction sheet is made by conductive material, and shape is any, is mounted on the paper feed port inner surface of shredder insulating panel, when organism was pressed close to, the distribution capacity between described unipolar induction sheet and the public ground changed.
Described induced signal treatment circuit is by one-chip computer and the decay coupling capacitance that is connected the signal input part of one-chip computer, be connected the sensitivity control capacittance of the signal controlling end of one-chip computer, and the isolating diode that is connected the signal output part of one-chip computer is formed, described decay coupling capacitance is connected with described unipolar induction sheet, promptly connect with the distribution capacity between the public ground with described unipolar induction sheet, the variable signal that described one-chip computer takes place the distribution capacity between described unipolar induction sheet and the public ground is handled and judged has no touch to take place, when judgement has the generation of touch, the level saltus step of the signal output part of described one-chip computer.
Technical problem of the present invention is solved by following further technical scheme.
Preferably, described unipolar induction sheet is one.
The conductive material of described making unipolar induction sheet is a kind of in Aluminium film paste paper and the copper sheet paster.
Described insulating panel is a kind of in safety glass, pottery and the plastics.
The thickness of described insulating panel is 20mm at the most.
Technical problem of the present invention is solved by following further again technical scheme.
Described motor operation switch is the normally opened contact of running relay.
Described guard signal produces circuit and comprises by switch triode; the relay switching circuit that described running relay and coil fly-wheel diode thereof are formed; and by described low-voltage dc power supply; the switch triode base circuit that input resistance and input diode are formed; described low-voltage dc power supply makes the switch triode conducting; described running relay coil energising; its normally opened contact closure; the described motor power supply of described motor operation switch connection; described motor operation; the induced signal treatment circuit is judged when the generation of touch is arranged; its output is controlled described switch triode through described isolating diode and is ended; described running relay coil outage; its normally opened contact disconnects; described motor operation switch disconnects described motor power supply, and protection is implemented in described motor stall.
Described motor is a kind of in ac motor and the dc motor.
Described power supply is high-pressure and low-pressure insulating power supply and high-pressure and low-pressure a kind of in the power supply altogether, and described low pressure is formed by mains supply step-down, rectification and filtering.
The beneficial effect that the present invention is compared with the prior art is:
Touch sensible sampler of the present invention adopts the unipolar induction sheet, belongs to non-electrode contact-type insulation touch manner, fashion novel in design, and cost is lower, and is practical, not influenced greatly by periphery electromagnetic environment, and the probability that leaks protection and mistake protection is little.Induction to organism is extremely responsive, even the thickness surperficial dirty oxidation of insulating panel of 20mm at the most, perhaps the operator has gloves on and can normally implement protection.Be applicable to the shredder that adopts high-pressure and low-pressure isolation or power supply altogether.
Description of drawings
Fig. 1 is the functional-block diagram of the specific embodiment of the present invention;
Fig. 2 is the physical circuit figure of Fig. 1.
The specific embodiment
Below in conjunction with the specific embodiment and contrast accompanying drawing the present invention will be described.
A kind of band as shown in Figure 1, 2 touches the shredder of defencive function; comprise electric controling part and power supply; electric controling part comprises that touch sensible sampler 3, induced signal treatment circuit 4, the guard signal of cascade successively produce circuit 5, motor and running switch 6 thereof, and power supply comprises motor power supply 1 and all the other electric controling parts low-voltage dc power supply 2.Motor MOTOR is an ac motor, and motor is a mains supply with power supply 1, and the motor operation switch is the normally opened contact 3-5 of running relay K 1, is connected motor MOTOR and motor with between the power supply 1.
Touch sensible sampler 3 is unipolar induction sheets, made by conductive material Aluminium film paste paper, shape is any, and being mounted on shredder thickness is the paper feed port inner surface of the plastic cement insulating panel of 2.5mm, when organism was pressed close to, the distribution capacity between unipolar induction sheet and the public ground changed.
Induced signal treatment circuit 4 is by one-chip computer U1 and the decay coupling capacitance C1 that is connected signal input part the 1st pin of one-chip computer U1, be connected the sensitivity control capacittance C2 of signal controlling end the 5th pin of one-chip computer U1, and the isolating diode D2 that is connected signal output part the 16th pin of one-chip computer U1 forms, decay coupling capacitance C1 is connected with the unipolar induction sheet, promptly connect with the distribution capacity between the public ground with the unipolar induction sheet, the variable signal that one-chip computer U1 takes place the distribution capacity between unipolar induction sheet and the public ground is handled and judged has no touch to take place, when judgement has the generation of touch, the level saltus step of signal output part the 16th pin of one-chip computer U1 is by high level saltus step low level.
Guard signal produces circuit 5 and comprises by switch triode Q1; the relay switching circuit that running relay K 1 and coil sustained diode 3 thereof are formed; and by low-voltage dc power supply 2; the switch triode base circuit that input resistance R3 and input diode D1 form; low-voltage dc power supply 2 makes switch triode Q1 conducting; running relay K 1 coil 1-2 energising; its normally opened contact 3-5 closure; motor MOTOR connects motor and turns round with power supply 1; induced signal treatment circuit 4 is judged when the generation of touch is arranged; its output ends through isolating diode D2 gauge tap triode Q1; running relay K 1 coil 1-2 outage; its normally opened contact 3-5 disconnects; motor MOTOR disconnects motor with power supply 1 stall, implements protection.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention; make some alternative or obvious modification that are equal to without departing from the inventive concept of the premise; and performance or purposes are identical, all should be considered as belonging to the scope of patent protection that the present invention is determined by claims of being submitted to.
Claims (9)
1. one kind with the shredder that touches defencive function; comprise electric controling part and power supply; described electric controling part comprises that touch sensible sampler, induced signal treatment circuit, the guard signal of cascade successively produce circuit, motor and running switch thereof; described power supply comprises motor power supply and all the other control assembly low-voltage dc power supplies; described motor operation switch is connected described motor and described motor is used between the power supply, it is characterized in that:
Described touch sensible sampler is at least one unipolar induction sheet, described unipolar induction sheet is made by conductive material, and shape is any, is mounted on the paper feed port inner surface of shredder insulating panel, when organism was pressed close to, the distribution capacity between described unipolar induction sheet and the public ground changed;
Described induced signal treatment circuit is by one-chip computer and the decay coupling capacitance that is connected the signal input part of one-chip computer, be connected the sensitivity control capacittance of the signal controlling end of one-chip computer, and the isolating diode that is connected the signal output part of one-chip computer is formed, described decay coupling capacitance is connected with described unipolar induction sheet, promptly connect with the distribution capacity between the public ground with described unipolar induction sheet, the variable signal that described one-chip computer takes place the distribution capacity between described unipolar induction sheet and the public ground is handled and judged has no touch to take place, when judgement has the generation of touch, the level saltus step of the signal output part of described one-chip computer.
2. band as claimed in claim 1 touches the shredder of defencive function, it is characterized in that:
Described unipolar induction sheet is one.
3. band as claimed in claim 1 or 2 touches the shredder of defencive function, it is characterized in that:
The conductive material of described making unipolar induction sheet is a kind of in Aluminium film paste paper and the copper sheet paster.
4. band as claimed in claim 3 touches the shredder of defencive function, it is characterized in that:
Described insulating panel is a kind of in safety glass, pottery and the plastics.
5. band as claimed in claim 4 touches the shredder of defencive function, it is characterized in that:
The thickness of described insulating panel is 20mm at the most.
6. band as claimed in claim 5 touches the shredder of defencive function, it is characterized in that:
Described motor operation switch is the normally opened contact of running relay.
7. band as claimed in claim 6 touches the shredder of defencive function, it is characterized in that:
Described guard signal produces circuit and comprises by switch triode; the relay switching circuit that described running relay and coil fly-wheel diode thereof are formed; and by described low-voltage dc power supply; the switch triode base circuit that input resistance and input diode are formed; described low-voltage dc power supply makes the switch triode conducting; described running relay coil energising; its normally opened contact closure; the described motor power supply of described motor operation switch connection; described motor operation; the induced signal treatment circuit is judged when the generation of touch is arranged; its output is controlled described switch triode through described isolating diode and is ended; described running relay coil outage; its normally opened contact disconnects; described motor operation switch disconnects described motor power supply, and protection is implemented in described motor stall.
8. band as claimed in claim 7 touches the shredder of defencive function, it is characterized in that:
Described motor is a kind of in ac motor and the dc motor.
9. band as claimed in claim 8 touches the shredder of defencive function, it is characterized in that:
Described power supply is high-pressure and low-pressure insulating power supply and high-pressure and low-pressure a kind of in the power supply altogether, and described low pressure is formed by mains supply step-down, rectification and filtering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110252331 CN102350398B (en) | 2011-08-30 | 2011-08-30 | Paper shredder with touch protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110252331 CN102350398B (en) | 2011-08-30 | 2011-08-30 | Paper shredder with touch protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102350398A CN102350398A (en) | 2012-02-15 |
| CN102350398B true CN102350398B (en) | 2013-07-31 |
Family
ID=45574106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110252331 Active CN102350398B (en) | 2011-08-30 | 2011-08-30 | Paper shredder with touch protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102350398B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170297A (en) * | 2012-12-09 | 2015-12-23 | 丁雪强 | Paper shredder having touch protection, controlled by microcontroller and used for treating humid paper sheets |
| CN110764149A (en) * | 2018-07-25 | 2020-02-07 | 北京铂阳顶荣光伏科技有限公司 | Equipment detection system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4328559B2 (en) * | 2003-05-27 | 2009-09-09 | 株式会社明光商会 | Shredder paper scrap leveling device |
| US20070012808A1 (en) * | 2005-07-18 | 2007-01-18 | Cheng-Chung Kao | Shredder safety device having emergency stop |
| CN2928244Y (en) * | 2006-07-27 | 2007-08-01 | 汪永国 | Safety paper shredder |
| CN200970539Y (en) * | 2006-08-17 | 2007-11-07 | 罗贤俐 | Paper shredder with safety power cut-off function |
| JP5120767B2 (en) * | 2007-01-12 | 2013-01-16 | 株式会社石澤製作所 | Document shredding machine equipped with a safe paper feeding mechanism |
| CN201205505Y (en) * | 2007-10-29 | 2009-03-11 | 深圳市齐心文具股份有限公司 | Safe induction paper shredder |
| CN201140092Y (en) * | 2007-11-19 | 2008-10-29 | 深圳市齐心文具股份有限公司 | Paper crusher with inlet security protection mechanism |
| CN201300081Y (en) * | 2008-10-20 | 2009-09-02 | 罗世凯 | Paper shredder |
| CN202270564U (en) * | 2011-08-30 | 2012-06-13 | 茂新五金制品（深圳）有限公司 | A paper shredder having a function of touch protection |
-
2011
- 2011-08-30 CN CN 201110252331 patent/CN102350398B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102350398A (en) | 2012-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103401103B (en) | Automatic cut-off conversion socket for electric apparatus standby | |
| CN102350398B (en) | Paper shredder with touch protection function | |
| CN103066559A (en) | Power outage protector | |
| CN203617494U (en) | Electric shock prevention socket | |
| CN202270564U (en) | A paper shredder having a function of touch protection | |
| CN206164084U (en) | Electricity input impulse current circuit in reduction | |
| CN206486712U (en) | A kind of touch control device of electric clothes airing machine and the electric clothes airing machine including the touch control device | |
| CN203607226U (en) | Power transformer for kitchen and bath electric appliances | |
| CN205581702U (en) | Use safety protection circuit on electric airer | |
| CN201300081Y (en) | Paper shredder | |
| CN104656481A (en) | Current/voltage integrated intelligent no-electric-shock protection warning control switch | |
| CN204243374U (en) | A kind of electromechanical double protection safety socket | |
| CN107147075A (en) | A kind of lightning protection monitoring system | |
| CN103414573A (en) | Method capable of automatically controlling router to be opened and closed | |
| WO2008116350A1 (en) | A safety paper-shredder and its paper-inlet tactile sensing device | |
| CN104064913A (en) | Intelligent energy-saving power socket | |
| CN206850743U (en) | A kind of touch intelligent switch | |
| CN2932789Y (en) | Safety monitoring and sampling circuit of safety protector of electric appliance | |
| CN203883789U (en) | Safe energy-saving switch circuit | |
| CN205156367U (en) | Electric shock protection device is prevented to water heater | |
| CN203394786U (en) | Fully-automatically controlled no-pipe pump | |
| CN201847470U (en) | Infrared sensing water dispenser | |
| CN210927068U (en) | Anti-electric shock inductive switch | |
| CN204014156U (en) | A kind of intelligent light controller | |
| CN203278179U (en) | Cleaning machine overload protection touching device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |