Paper shredder with pressure sensing and automatic power adjusting functions

Abstract

The utility model relates to the technical field of paper shredders, in particular to a paper shredder with a pressure induction automatic power regulation function, which comprises a pressure detection module, a signal processing and control module, a motor power regulation module and a motor module, the processor is connected with the signal processing and control module; the signal processing and control module is connected with the pressure detection module and is connected with the motor power regulation module at the same time; the motor power adjusting module is connected with the signal processing and control module, is connected with the motor module at the same time, and is used for adjusting the output power of the motor module; and the motor module is connected with the motor power adjusting module. The motor power is automatically adjusted according to the thickness of paper, high efficiency and stability in the paper shredding process are guaranteed, and the energy utilization rate is increased.

Description

Technical Field

[0001] This utility model relates to the field of paper shredder technology, and in particular to a paper shredder with pressure-sensing automatic power adjustment function. Background Technology

[0002] As office equipment, paper shredders are used to shred paper and other documents to protect information security. Traditional paper shredders have many shortcomings when dealing with paper of different thicknesses. On the one hand, when processing thinner paper, the motor still runs at a fixed high power, resulting in energy waste. Moreover, the paper shredding process may be over-shredded due to excessive power, producing too many fine paper scraps, which is not conducive to subsequent cleaning and recycling. On the other hand, when loading thicker paper or multiple sheets of paper, the fixed-power motor may be insufficient, resulting in paper jams, incomplete shredding, or even motor burnout due to overload, affecting the lifespan and working efficiency of the paper shredder.

[0003] Chinese Patent Publication No. CN117259401A discloses a paper shredder with an automatic blade cleaning structure, including a shredder body. The shredder body consists of a paper feed box and a storage box. The paper feed box is used for shredding paper and storing shredded paper, while the storage box is used to store the shredded paper scraps. Because the storage box is equipped with an arc-shaped sliding plate and a pressure plate assembly, this arrangement allows the two pressure plate assemblies to flatten the shredded paper pile by rotation, moving the shredded paper pile in the middle to both sides. This allows the paper scraps swept to both sides to gradually fill the empty space in the receiving cavity. Furthermore, as the two pressure plate assemblies continue to squeeze, they create a downward pressure on the shredded paper pile, thus creating more space inside the storage box to collect more shredded paper. However, this technical solution cannot automatically adjust the motor power according to the paper thickness, resulting in energy waste, poor shredding effect, and easy motor damage. Utility Model Content

[0004] Therefore, this utility model provides a paper shredder with pressure-sensing automatic power adjustment function to overcome the problems of existing technology that cannot automatically adjust motor power according to paper thickness, resulting in energy waste, poor shredding effect and easy motor damage.

[0005] To achieve the above objectives, this utility model provides a paper shredder with pressure-sensing automatic power adjustment function, including a signal processing and control module, a motor power adjustment module and a motor module, and also includes a pressure detection module for detecting the pressure signal generated by the paper being put in, connecting to the signal processing and control module, and transmitting the pressure signal to the signal processing and control module;

[0006] The signal processing and control module is connected to the pressure detection module to receive the pressure signal output by the pressure detection module, and is also connected to the motor power adjustment module to send power adjustment commands to the motor power adjustment module.

[0007] The motor power adjustment module is connected to the signal processing and control module, and is used to receive the power adjustment command sent by the signal processing and control module, convert it into a power signal, and is also connected to the motor module to adjust the output power of the motor module.

[0008] The motor module is connected to the motor power regulation module and is used to receive power signals.

[0009] Furthermore, the pressure detection module includes a pressure sensor, which is connected to the signal processing and control module and is used to convert the pressure signal into an electrical signal for output.

[0010] Furthermore, the signal processing and control module includes a microprocessor and a storage unit. The microprocessor is connected to the pressure sensor and is used to analyze and process the electrical signal output by the pressure sensor to obtain a motor power control signal. It is also connected to the motor adjustment module and is used to transmit the motor power control signal to the motor adjustment module. The storage unit is connected to the microprocessor and is used to store motor power adjustment parameters.

[0011] Furthermore, the motor power adjustment module includes a motor drive unit, which is connected to the microprocessor for receiving motor power control signals and is also connected to the motor module for converting the motor power control signals into motor drive power.

[0012] Furthermore, the motor power adjustment module also includes a monitoring and protection unit and a feedback unit. The monitoring and protection unit is connected to the motor drive unit and is used to automatically adjust the motor drive power. The feedback unit is connected to the motor drive unit and also connected to the storage unit, and is used to feed back the automatically adjusted motor drive power parameters to the storage unit.

[0013] Furthermore, the motor module also includes a shredding execution unit, which is connected to the motor drive unit and is used to drive the cutter to rotate and shred the paper.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this invention, the paper shredder works in concert with a pressure detection module, a signal processing and control module, a motor power adjustment module, and a motor module to ensure stable signal transmission and power, thus enabling safe operation of the paper shredder. The motor power adjustment module detects the paper pressure stably and accurately through the pressure detection module, and realizes intelligent dynamic adjustment of the paper shredder power based on the paper pressure signal, ensuring the efficiency and stability of the shredding process and improving energy utilization. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the paper shredder with pressure-sensing automatic power adjustment function in this embodiment. Detailed Implementation

[0017] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are merely for explaining this utility model and are not intended to limit this utility model.

[0018] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0019] Please see Figure 1 As shown, this is a schematic diagram of the structure of a paper shredder with pressure sensing and automatic power adjustment function according to the present invention. The paper shredder includes: a pressure detection module, a signal processing and control module, a motor power adjustment module, and a motor module. The pressure detection module is used to detect the pressure signal generated by the paper being put in, and is connected to the signal processing and control module to transmit the pressure signal to the signal processing and control module.

[0020] The signal processing and control module is connected to the pressure detection module to receive the pressure signal output by the pressure detection module, and is also connected to the motor power adjustment module to send power adjustment commands to the motor power adjustment module.

[0021] The motor power adjustment module is connected to the signal processing and control module, and is used to receive the power adjustment command sent by the signal processing and control module, convert it into a power signal, and is also connected to the motor module to adjust the output power of the motor module.

[0022] The motor module is connected to the motor power regulation module and is used to receive power signals.

[0023] Specifically, the paper shredder works in concert with a pressure detection module, a signal processing and control module, a motor power adjustment module, and a motor module to ensure stable signal transmission and power, enabling safe operation of the paper shredder. The motor power adjustment module uses the pressure detection module to stably and accurately detect paper pressure and intelligently and dynamically adjusts the power of the paper shredder based on the paper pressure signal, ensuring the efficiency and stability of the shredding process and improving energy utilization.

[0024] Specifically, the pressure detection module includes a pressure sensor installed at the paper inlet of the shredder and connected to the signal processing and control module. When the user inserts paper into the shredder inlet, the pressure sensor detects the pressure signal applied by the paper and converts it into an electrical signal, which is then output to the signal processing and control module. The strength of this electrical signal is positively correlated with the paper thickness. For example, when a single sheet of plain A4 paper is inserted, the electrical signal value output by the pressure sensor is X1; when 10 sheets of plain A4 paper are inserted, the output electrical signal value is X2, and X2 is greater than X1.

[0025] Specifically, the pressure detection module achieves real-time detection and intelligent conversion of pressure signals through the integrated application of pressure sensors at the paper inlet, thereby improving equipment safety.

[0026] Specifically, the signal processing and control module includes a microprocessor and a storage unit. The microprocessor, connected to the pressure sensor, analyzes and processes the electrical signal output by the pressure sensor to obtain a motor power control signal. It is also connected to the motor adjustment module to transmit the motor power control signal. The storage unit, connected to the microprocessor, stores motor power adjustment parameters. During operation, the signal processing and control module is connected to the pressure sensor and receives the electrical signal output by the pressure sensor. It integrates a microprocessor that pre-stores motor power adjustment parameters corresponding to different pressure values. The microprocessor analyzes and processes the received electrical signal and calculates the motor power control signal matching the current paper thickness according to preset parameter rules. For example, when a pressure signal value of X is detected, the power value that the motor should adjust to is determined to be P.

[0027] Specifically, the signal processing and control module, through the intelligent analysis of the microprocessor and the parameter support of the storage unit, achieves precise analysis of pressure signals and precise control of motor power, thereby improving shredding efficiency and energy utilization efficiency.

[0028] Specifically, the motor power adjustment module includes a motor drive unit connected to the microprocessor. This motor drive unit receives motor power control signals and is also connected to the motor module, converting the motor power control signals into motor drive power. It compares the motor power control signals with stored motor power adjustment parameters, detects and determines the paper thickness range based on the comparison result, and adjusts the motor power control signal in real time based on the determination result. During operation, the motor power adjustment module adjusts the motor's output power by changing the motor's input voltage or current based on the received power control signal. For example, when the power control signal requires increased motor power, the input voltage is increased to allow the motor to output greater torque to handle the shredding of thicker paper; when a power reduction is required, the input voltage is decreased to allow the motor to operate at lower power for shredding thinner paper.

[0029] Specifically, the motor power adjustment module further includes a monitoring and protection unit and a feedback unit. The monitoring and protection unit is connected to the motor drive unit and automatically adjusts the motor drive power by adjusting the current or voltage input to the motor, so that the motor operates with a suitable drive power. The feedback unit is connected to the motor drive unit and also connected to the storage unit, and is used to feed back the automatically adjusted motor drive power parameters to the storage unit.

[0030] Specifically, the motor power adjustment module achieves adaptability to paper thickness, ensures safe motor operation, and improves power adjustment through dynamic adjustment of the motor drive unit, real-time protection of the monitoring and protection unit, and closed-loop optimization of the feedback unit, thereby improving shredding efficiency and reducing energy consumption, and thus enhancing equipment reliability.

[0031] Specifically, the motor module also includes a paper shredding unit, which is connected to the motor drive unit. When paper enters the blade gap, the blade is driven to rotate and shred the paper.

[0032] The working process of this utility model is as follows:

[0033] 1. Installation and Preparation: Accurately install the pressure sensor at the specific position at the paper inlet of the shredder according to the design requirements, ensuring that it can stably and accurately detect paper pressure. Connect the wiring between the pressure sensor and the signal processing and control module, the signal processing and control module and the motor power regulation module, and the motor power regulation module and the motor, ensuring stable signal transmission and power supply.

[0034] 2. Workflow:

[0035] Pressure detection: When the user puts paper into the paper feed inlet of the shredder, the pressure sensor immediately detects the pressure applied by the paper and converts it into an electrical signal, which is then sent to the signal processing and control module.

[0036] Signal processing and power calculation: The microprocessor in the signal processing and control module analyzes the received electrical signals and compares them with internally preset pressure and power parameter tables. For example, if the detected pressure signal corresponds to the thick paper range, the microprocessor calculates the control signal that needs to increase the motor power; if it corresponds to the thin paper range, it calculates the control signal that needs to decrease the motor power.

[0037] Power Regulation and Shredding: The motor power regulation module quickly adjusts the motor's input voltage or current based on the received power control signal, ensuring the motor operates at an appropriate power to shred the paper. During the shredding process, a pressure sensor continuously monitors changes in paper pressure. The signal processing and control module and the motor power regulation module adjust the motor power in real time based on these pressure changes, ensuring the efficiency and stability of the entire shredding process.

[0038] The paper shredder with pressure-sensing automatic power adjustment provided in this embodiment can automatically adjust the motor power according to the paper thickness, avoiding unnecessary energy consumption. It reduces motor power when processing thin paper, saving energy; and increases power when processing thick paper, ensuring shredding efficiency. This effectively prevents motor damage due to overload or prolonged unnecessary high-power operation, reducing maintenance costs and equipment replacement frequency, and extending the overall lifespan of the shredder. Using appropriate motor power for different paper thicknesses results in more uniform and thorough shredding, reduces paper jams, improves shredding quality, ensures information security, and enhances office efficiency.

[0039] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A paper shredder with pressure sensing automatic power regulation function, comprising a signal processing and control module, a motor power regulation module and a motor module, characterized in that, It also includes a pressure detection module, which is used to detect the pressure signal generated by the paper being inserted, and is connected to the signal processing and control module to transmit the pressure signal to the signal processing and control module; The signal processing and control module is connected to the pressure detection module to receive the pressure signal output by the pressure detection module, and is also connected to the motor power adjustment module to send power adjustment commands to the motor power adjustment module. The motor power adjustment module is connected to the signal processing and control module, and is used to receive the power adjustment command sent by the signal processing and control module, convert it into a power signal, and is also connected to the motor module to adjust the output power of the motor module. The motor module is connected to the motor power regulation module and is used to receive power signals.

2. The paper shredder having a pressure sensing automatic power adjusting function according to claim 1, characterized in that, The pressure detection module includes a pressure sensor, which is connected to the signal processing and control module and is used to convert the pressure signal into an electrical signal for output.

3. The paper shredder having a pressure sensing automatic power adjusting function according to claim 2, characterized in that, The signal processing and control module includes a microprocessor and a storage unit. The microprocessor is connected to the pressure sensor and is used to analyze and process the electrical signal output by the pressure sensor to obtain a motor power control signal. It is also connected to the motor adjustment module and is used to transmit the motor power control signal to the motor adjustment module. The storage unit is connected to the microprocessor and is used to store motor power adjustment parameters.

4. The paper shredder having a pressure sensing automatic power adjusting function according to claim 3, characterized in that, The motor power adjustment module includes a motor drive unit, which is connected to the microprocessor and is used to receive motor power control signals. It is also connected to the motor module and is used to convert the motor power control signals into motor drive power.

5. The paper shredder having a pressure sensing automatic power adjusting function according to claim 4, wherein, The motor power adjustment module further includes a monitoring and protection unit and a feedback unit. The monitoring and protection unit is connected to the motor drive unit and is used to automatically adjust the motor drive power. The feedback unit is connected to the motor drive unit and also connected to the storage unit, and is used to feed back the automatically adjusted motor drive power parameters to the storage unit.

6. The paper shredder having a pressure sensing automatic power adjusting function according to claim 1, wherein, The motor module also includes a shredding unit, which is connected to the motor drive unit and is used to drive the cutter to rotate and shred the paper.

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