CN202803335U - Paper shredder with constant paper shredding speed - Google Patents
Paper shredder with constant paper shredding speed Download PDFInfo
- Publication number
- CN202803335U CN202803335U CN201220468581.8U CN201220468581U CN202803335U CN 202803335 U CN202803335 U CN 202803335U CN 201220468581 U CN201220468581 U CN 201220468581U CN 202803335 U CN202803335 U CN 202803335U
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- circuit
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- signal processing
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Abstract
The utility model relates to a paper shredder, in particular to a paper shredder with a constant paper shredding speed. The paper shredder with the constant paper shredding speed comprises a signal processing circuit and a motor, and also comprises a speed testing circuit for detecting the rotating speed of the motor and a silicon controlled drive circuit for regulating the voltage of the motor, wherein the speed testing circuit is connected with the signal processing circuit, and the silicon controlled drive circuit is respectively connected with the signal processing circuit and the motor. The silicone controlled drive circuit is adopted in the paper shredder, and the voltage of the motor is regulated according to the motor speed signal, therefore the power is regulated so that the rotating speed of the motor is better controlled; and the rotating speed is controlled according to the actual requirement so as to be stable, the motor speed is not high when a small amount of paper is shredded, and thus the noise of the paper shredder is reduced, and the energy consumption is reduced.
Description
Technical field
The utility model relates to the office equipment field, is specifically related to a kind of shredder of shredded paper constant airspeed.
Background technology
Shredder is as a kind of common office equipment, and it utilizes the blade of the mutual interlock of motor-driven that paper is divided into the tiny scraps of paper, to reach secret purpose.Existing shredder is when broken a small amount of paper and broken rated capacity paper, and the speed difference of motor is large; During broken rated capacity paper, because load causes greatly motor speed slow; And during broken a small amount of paper, because the load less causes motor speed fast.When broken a small amount of paper, because motor speed is fast, cause the shredder noise large, also wasted motor power consumption simultaneously.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and a kind of shredder of shredded paper constant airspeed is provided, and this shredder is when broken rated capacity paper and broken a small amount of paper, and its motor (also namely, motor) rotating speed can both be stablized, thereby makes the reducing noise of shredder.
To achieve these goals, the utility model adopts following technical scheme:
A kind of shredder of shredded paper constant airspeed, comprise signal processing circuit and motor, also comprise for detection of the velocity test circuit of motor rotary speed and be used for the controllable silicon drive circuit of governor motor voltage, velocity test circuit and signal treatment circuit connects, and controllable silicon drive circuit is connected with motor with signal processing circuit respectively.
Further, described shredder comprises that also the paper inlet sensor circuit is connected with signal processing circuit for the paper inlet sensor circuit of induction paper
Further, described shredder also comprises the zero cross detection circuit for detection of zero cross signal, and zero cross detection circuit is connected with signal processing circuit.
Preferably, described shredder also comprises the positive and reverse rotation control circuit that turns to for the control motor, and positive and reverse rotation control circuit is connected with motor with signal processing circuit respectively.
Further, described shredder also comprises the step-down rectifier mu balanced circuit, and the step-down rectifier mu balanced circuit is connected with signal processing circuit, controllable silicon drive circuit, positive and reverse rotation control circuit respectively.
Further, described shredder comprises that also the paper scrap sensor circuit is connected with signal processing circuit for the paper scrap sensor circuit of induction paper scrap.
Further, described shredder also comprises the LED display circuit that is connected with signal processing circuit.
In addition, described shredder also comprises the function button circuit, and function button circuit and signal treatment circuit connects.
The beneficial effects of the utility model:
Compared with prior art, shredder of the present utility model adopts controllable silicon drive circuit, according to the voltage of motor rotary speed Signal Regulation motor, better controls the rotating speed of motor, load no matter, all the rotating speed with motor is fixed on the minimum tachometer value of noise in operating; It controls motor rotary speed according to actual needs, makes its stabilization of speed, guarantees that when broken a small amount of paper, motor rotary speed is not too fast, thereby reduces the noise of shredder, saves simultaneously energy consumption.
Description of drawings
The utility model is described in further detail to utilize accompanying drawing, but the content in the accompanying drawing does not consist of any restriction of the present utility model.
Fig. 1 is the circuit block diagram of the shredder of a kind of shredded paper constant airspeed of the present utility model.
The description of reference numerals of Fig. 1:
1, zero cross detection circuit; 2, velocity test circuit; 3, paper inlet sensor circuit; 4, signal processing circuit; 5, paper scrap sensor circuit; 6, function button circuit; 7, LED display circuit; 8, step-down rectifier mu balanced circuit; 9, positive and reverse rotation control circuit; 10, motor; 11, controllable silicon drive circuit.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is further described.
The shredder of a kind of shredded paper constant airspeed of the present utility model, as shown in Figure 1, comprise velocity test circuit 2, paper inlet sensor circuit 3, signal processing circuit 4, controllable silicon drive circuit 11 and motor 10, velocity test circuit 2, paper inlet sensor circuit 3 are connected with signal processing circuit 4 respectively, and controllable silicon drive circuit 11 is connected with signal processing circuit 4, motor 10 respectively.
Velocity test circuit 2 is for detection of the rotating speed of motor 10, and tach signal is sent to signal processing circuit 4.Velocity test circuit 2 can adopt Hall element to realize, also can adopt other embodiment to realize, such as Photoelectric Detection.
Paper inlet sensor circuit 3 is used for the induction paper, to judge that shredder is in holding state or duty; Paper inlet sensor circuit 3 sends the paper signal to signal processing circuit 4.
11 voltages that are used for coming according to the control signal of signal processing circuit 4 governor motor 10 of controllable silicon drive circuit.
Signal processing circuit 4 is according to the tach signal and the paper signal that receive, and control controllable silicon drive circuit 11 is with the voltage of governor motor 10.Particularly, do not sense the paper inlet that paper enters shredder when paper inlet sensor circuit 3, then shredder is in holding state, and signal processing circuit 4 control controllable silicon drive circuits 11 are starter 10 not, and the rotating speed of motor 10 is zero; Sense paper when paper inlet sensor circuit 3 and entered shredder, then shredder enters duty, signal processing circuit 4 control controllable silicon drive circuits 11 starters 10, motor 10 begins to rotate, and signal processing circuit 4 can control the voltage of controllable silicon drive circuit 11 governor motors 10 according to the actual requirements, to control its rotating speed; Many such as the paper amount, then controllable silicon drive circuit 11 strengthens the voltage of motor 10, increases its power, thereby guarantees the rotating speed of motor 10, avoids rotating speed to cross slow so that the motor deadlock; Few such as the paper amount, then controllable silicon drive circuit 11 reduces the voltage of motor 10, reduces its power, thereby reduces the rotating speed of motor 10, with stabilized (steady-state) speed, makes it not too fast, thereby reduces noise.And, owing to reduced power, therefore also saved energy consumption.
Further, shredder also comprises the zero cross detection circuit 1 that is connected with signal processing circuit 4; Shredder external AC power supply of the present utility model, zero cross detection circuit 1 be for detection of zero cross signal, and zero cross signal is exported to signal processing circuit 4, to allow signal processing circuit 4 control better controllable silicon drive circuit 11 regulation voltages.
Further, shredder also comprises the positive and reverse rotation control circuit 9 that is connected with signal processing circuit 4, motor 10 respectively, and positive and reverse rotation control circuit 9 can be controlled turning to of motor 10 according to the control signal that signal processing circuit 4 sends.
In addition, shredder also comprises the step-down rectifier mu balanced circuit 8 that is connected with signal processing circuit 4, positive and reverse rotation control circuit 9, controllable silicon drive circuit 11 respectively, the voltage that 8 pairs of AC powers of step-down rectifier mu balanced circuit provide carries out step-down, rectification and voltage stabilizing, is respectively signal processing circuit 4, positive and reverse rotation control circuit 9 and controllable silicon drive circuit 11 actual required operating voltage is provided.
Preferably, shredder also comprises the paper scrap sensor circuit 5 that is connected with signal processing circuit 4.In existing shredder, all can with a dustbin, be used for loading the paper scrap after pulverizing.5 paper scrap amounts that are used for induction dustbin of paper scrap sensor circuit, when paper scrap reaches a certain amount of, that is, dustbin is in full load, and paper scrap sensor circuit 5 sends the paper scrap signal of sensing to signal processing circuit 4, in time processes paper scrap with reminding user.Certainly, when only having a small amount of paper scrap, paper scrap sensor circuit 5 is sent to signal processing circuit 4 with the paper scrap signal equally, to allow the present paper scrap situation of the clear understanding of user.
Preferably, shredder also comprises the LED display circuit 7 that is connected with signal processing circuit 4, LED display circuit 7 comprises the LED light for display working condition and holding state, signal processing circuit 4 is lighted according to the corresponding LED light of paper signal controlling that receives from paper inlet sensor circuit 3 or is extinguished, thereby allow the more convenient residing use state of shredder of learning of user, for the user provides good operating experience, and avoid producing maloperation.LED display circuit 7 also comprises for the LED light that shows the paper scrap situation, signal processing circuit 4 is lighted according to the corresponding LED light of paper scrap signal controlling that receives from paper scrap sensor circuit 5 or is extinguished, thereby the paper scrap situation that allows the user conveniently learn to load the dustbin of paper scrap is in order in time deal with.
In addition, shredder also comprises the function button circuit 6 that is connected with signal processing circuit 4, for the user provides the function selection key, the user can select corresponding function button according to demand, function button circuit 6 sends corresponding push button signalling to signal processing circuit 4, afterwards, signal processing circuit 4 is controlled corresponding circuit according to push button signalling and is carried out corresponding action.
Should be noted that at last; above embodiment is only in order to illustrate the technical solution of the utility model; but not to the restriction of the utility model protection domain; although with reference to preferred embodiment the utility model is described in detail; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from essence and the scope of technical solutions of the utility model.
Claims (8)
1. the shredder of a shredded paper constant airspeed, comprise signal processing circuit and motor, it is characterized in that, also comprise for detection of the velocity test circuit of motor rotary speed and be fixed on the controllable silicon drive circuit of the minimum tachometer value of noise in operating by the rotating speed that governor motor voltage is controlled motor, velocity test circuit and signal treatment circuit connects, and controllable silicon drive circuit is connected with motor with signal processing circuit respectively.
2. the shredder of shredded paper constant airspeed according to claim 1 is characterized in that, described shredder comprises that also the paper inlet sensor circuit is connected with signal processing circuit for the paper inlet sensor circuit of induction paper.
3. the shredder of shredded paper constant airspeed according to claim 1 is characterized in that, described shredder also comprises the zero cross detection circuit for detection of zero cross signal, and zero cross detection circuit is connected with signal processing circuit.
4. the shredder of shredded paper constant airspeed according to claim 1 is characterized in that, described shredder also comprises the positive and reverse rotation control circuit that turns to for the control motor, and positive and reverse rotation control circuit is connected with motor with signal processing circuit respectively.
5. the shredder of shredded paper constant airspeed according to claim 4 is characterized in that, described shredder also comprises the step-down rectifier mu balanced circuit, and the step-down rectifier mu balanced circuit is connected with signal processing circuit, controllable silicon drive circuit, positive and reverse rotation control circuit respectively.
6. the shredder of shredded paper constant airspeed according to claim 1 is characterized in that, described shredder comprises that also the paper scrap sensor circuit is connected with signal processing circuit for the paper scrap sensor circuit of induction paper scrap.
7. the shredder of shredded paper constant airspeed according to claim 1 is characterized in that, described shredder also comprises the LED display circuit that is connected with signal processing circuit.
8. the shredder of shredded paper constant airspeed according to claim 1 is characterized in that, described shredder also comprises the function button circuit, and function button circuit and signal treatment circuit connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220468581.8U CN202803335U (en) | 2012-09-14 | 2012-09-14 | Paper shredder with constant paper shredding speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220468581.8U CN202803335U (en) | 2012-09-14 | 2012-09-14 | Paper shredder with constant paper shredding speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202803335U true CN202803335U (en) | 2013-03-20 |
Family
ID=47862281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220468581.8U Expired - Lifetime CN202803335U (en) | 2012-09-14 | 2012-09-14 | Paper shredder with constant paper shredding speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202803335U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301925A (en) * | 2013-05-10 | 2013-09-18 | 广州科密股份有限公司 | Speed-changing anti-blocking anti-jamming paper shredder circuit and control method of motor thereof |
| CN109577976A (en) * | 2019-01-24 | 2019-04-05 | 滕州市金达煤炭有限责任公司 | A kind of New Coal Mine extractive equipment |
-
2012
- 2012-09-14 CN CN201220468581.8U patent/CN202803335U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301925A (en) * | 2013-05-10 | 2013-09-18 | 广州科密股份有限公司 | Speed-changing anti-blocking anti-jamming paper shredder circuit and control method of motor thereof |
| CN109577976A (en) * | 2019-01-24 | 2019-04-05 | 滕州市金达煤炭有限责任公司 | A kind of New Coal Mine extractive equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |