CN102350398A - Paper shredder with touch protection function - Google Patents
Paper shredder with touch protection function Download PDFInfo
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- CN102350398A CN102350398A CN2011102523310A CN201110252331A CN102350398A CN 102350398 A CN102350398 A CN 102350398A CN 2011102523310 A CN2011102523310 A CN 2011102523310A CN 201110252331 A CN201110252331 A CN 201110252331A CN 102350398 A CN102350398 A CN 102350398A
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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.Mere warning label and to limit the size of the paper chute protection methods, relatively poor reliability; the conductive material used to make the paper feed port member, or human body resistance by detecting a biological signal to control induction motor shut down methods, such as Chinese patent CN101032706A public "security shredder feed opening its touch-sensitive devices", CN102039215A open "touch-sensitive response element shredder control system", as well as CN2915259U announcement of the "shredder touch safety device," and some Requirements hands must touch two separate conductor assembly to introduce circuit detects the resistance of the human body, when the hand encountered only one conductor assembly, then no protection, but after wearing insulated gloves no protection ; some impact by the surrounding electromagnetic environment, leakage protection and relatively high probability of error protection; Moreover, the use of conductive material feed slot parts do not apply to the general shredders RC Buck power, and its cost is relatively high , after oxidation also affect the touch effect.
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 solves through following technical scheme.
This band touches the shredder of defencive function; Comprise electric controling part and power supply; Said 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; Said power supply comprises motor with power supply and all the other control assembly low-voltage dc power supplies, and said motor operation switch is connected said motor and said motor with between the power supply.
The characteristics that this band touches the shredder of defencive function are:
Said touch sensible sampler is at least one unipolar induction sheet; Said 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 said unipolar induction sheet and the public ground changed.
Technical problem of the present invention solves through following further technical scheme.
Preferably, said unipolar induction sheet is one.
The conductive material of said making unipolar induction sheet is a kind of in Aluminium film paste paper and the copper sheet paster.
Said insulating panel is a kind of in safety glass, pottery and the plastics.
The thickness of said insulating panel is 20mm at the most.
Technical problem of the present invention solves through following further again technical scheme.
Said induced signal treatment circuit by one-chip computer with 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; Said decay coupling capacitance is connected with said unipolar induction sheet; Promptly connect with the distribution capacity between the public ground with said unipolar induction sheet; The variable signal that said one-chip computer takes place the distribution capacity between said 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 said one-chip computer.
Said motor operation switch is the normally opened contact of running relay.
Said guard signal produces circuit and comprises by switch triode; The relay switching circuit that said running relay and coil fly-wheel diode thereof are formed; And by said low-voltage dc power supply; The switch triode base circuit that input resistance and input diode are formed; Said low-voltage dc power supply makes the switch triode conducting; Said running relay coil energising; Its normally opened contact is closed; The said motor power supply of said motor operation switch connection; Said motor operation; The induced signal treatment circuit is judged when the generation of touch is arranged; Its output is controlled said switch triode through said isolating diode and is ended; Said running relay coil outage; Its normally opened contact breaks off; Said motor operation switch breaks off said motor power supply, and protection is implemented in said motor stall.
Said motor is a kind of in ac motor and the dc motor.
Said 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 said low pressure is formed by mains supply step-down, rectification and filtering.
The beneficial effect of the present invention and prior art contrast 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 shredder like Fig. 1, the band touch defencive function shown in 2; Comprise electric controling part and power supply; Electric controling part comprises that the touch sensible sampler 3, induced signal treatment circuit 4, guard signal of cascade successively produce circuit 5, motor and running switch 6 thereof, power supply comprise motor with power supply 1 and all the other electric controling parts with 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 by one-chip computer U1 with 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 is closed; Motor MOTOR connects motor with power supply 1 running; 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 breaks off; Motor MOTOR breaks off motor with power supply 1 stall, implements protection.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.Those of ordinary skill for technical field under the present invention; Under the prerequisite that does not break away from the present invention's design, make some alternative or obvious modification that are equal to; And performance or purposes are identical, all should be considered as belonging to the scope of patent protection that the present invention is confirmed by claims of being submitted to.
Claims (10)
1. one kind with the shredder that touches defencive function; Comprise electric controling part and power supply; Said 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; Said power supply comprises that motor is with power supply and all the other control assembly low-voltage dc power supplies; Said motor operation switch is connected said motor and said motor with between the power supply, it is characterized in that:
Said touch sensible sampler is at least one unipolar induction sheet; Said 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 said unipolar induction sheet and the public ground changed.
2. band as claimed in claim 1 touches the shredder of defencive function, it is characterized in that:
Said 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 said 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:
Said 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 said 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:
Said induced signal treatment circuit by one-chip computer with 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; Said decay coupling capacitance is connected with said unipolar induction sheet; Promptly connect with the distribution capacity between the public ground with said unipolar induction sheet; The variable signal that said one-chip computer takes place the distribution capacity between said 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 said one-chip computer.
7. band as claimed in claim 6 touches the shredder of defencive function, it is characterized in that:
Said motor operation switch is the normally opened contact of running relay.
8. band as claimed in claim 7 touches the shredder of defencive function, it is characterized in that:
Said guard signal produces circuit and comprises by switch triode; The relay switching circuit that said running relay and coil fly-wheel diode thereof are formed; And by said low-voltage dc power supply; The switch triode base circuit that input resistance and input diode are formed; Said low-voltage dc power supply makes the switch triode conducting; Said running relay coil energising; Its normally opened contact is closed; The said motor power supply of said motor operation switch connection; Said motor operation; The induced signal treatment circuit is judged when the generation of touch is arranged; Its output is controlled said switch triode through said isolating diode and is ended; Said running relay coil outage; Its normally opened contact breaks off; Said motor operation switch breaks off said motor power supply, and protection is implemented in said motor stall.
9. band as claimed in claim 8 touches the shredder of defencive function, it is characterized in that:
Said motor is a kind of in ac motor and the dc motor.
10. band as claimed in claim 9 touches the shredder of defencive function, it is characterized in that:
Said 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 said 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 true CN102350398A (en) | 2012-02-15 |
| CN102350398B CN102350398B (en) | 2013-07-31 |
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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 |
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| Country | Link |
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| CN (1) | CN102350398B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846151A (en) * | 2012-12-09 | 2014-06-11 | 丁雪强 | Method for treating wet paper by using paper shredder with touch protection function |
| 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 |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004351273A (en) * | 2003-05-27 | 2004-12-16 | Meiko Shokai Co Ltd | Waste paper leveling apparatus for shredder |
| 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 |
| JP2008168242A (en) * | 2007-01-12 | 2008-07-24 | Ishizawa Seisakusho:Kk | Paper shredder with safe paper sheet-inserting mechanism |
| 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 |
| 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 |
| 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
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004351273A (en) * | 2003-05-27 | 2004-12-16 | Meiko Shokai Co Ltd | Waste paper leveling apparatus for shredder |
| 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 |
| JP2008168242A (en) * | 2007-01-12 | 2008-07-24 | Ishizawa Seisakusho:Kk | Paper shredder with safe paper sheet-inserting 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846151A (en) * | 2012-12-09 | 2014-06-11 | 丁雪强 | Method for treating wet paper by using paper shredder with touch protection function |
| CN103846151B (en) * | 2012-12-09 | 2016-01-13 | 南陵百绿汇农业科技有限公司 | Band touches the method for the moist paper of shredder process of protection |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102350398B (en) | 2013-07-31 |
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