Silent motor for paper shredder

By designing enclosed and detachable components on the shredder motor, the problems of motor noise transmission and inconvenient disassembly and assembly have been solved, achieving improved noise reduction and ease of operation.

CN224264765UActive Publication Date: 2026-05-19CHANGZHOU TANG MOTOR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU TANG MOTOR CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The existing paper shredder motor is installed in a slot without any shielding, resulting in direct noise transmission and reducing the noise reduction effect; the motor installation space is limited, and it is inconvenient to remove and install bolts.

Method used

The design incorporates enclosure and disassembly components, including a bottom groove, sealing plate, side plates, telescopic rod, and springs. The motor can be easily disassembled and enclosed via movable sealing plates and pull plates. The enclosure components provide sound insulation, while the side plates and clamping plates enable quick installation and fixation.

Benefits of technology

This improves the motor's noise reduction and ease of disassembly and assembly, while also enhancing the utilization of the motor's installation space.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224264765U_ABST
    Figure CN224264765U_ABST
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Abstract

The utility model provides a mute motor for a paper shredder, which belongs to the field of mute motors and comprises a machine body, the upper side of the machine body is provided with a paper shredding opening, the front side of the machine body is provided with a front groove, the lower side of the front end of the front groove is provided with a sealing assembly, and the rear end of the front groove is internally provided with a dismounting assembly. The pulling plates on the two sides are pulled oppositely to slide in the open grooves, the clamping plates on the outer sides are driven to be separated from the clamping grooves and slide into the open grooves, and the second telescopic rods and the second springs are squeezed to contract, so that the motor body can be pulled forwards to be separated from the butt joint grooves, meanwhile, the side plates are driven to be separated from the side grooves, and disassembly is completed. The motor body is inserted into the butt joint groove, the side plate is inserted into the side groove, the pulling force on the pulling plate is released, the second telescopic rod and the second spring push the pulling plate outwards, the clamping plate is driven to be inserted into the aligned clamping groove, and rapid installation and fixation are completed.
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Description

Technical Field

[0001] This utility model relates to the field of silent motors, and more specifically, to a silent motor for a paper shredder. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. It utilizes a rotating magnetic field generated by a current-carrying coil, which acts on the rotor to create magnetoelectric torque. Electric motors are classified into DC motors and AC motors based on the power source they use. Most motors in power systems are AC motors, which can be synchronous or asynchronous. An electric motor mainly consists of a stator and a rotor. The direction of the force exerted on a current-carrying conductor in a magnetic field depends on the direction of the current and the direction of the magnetic field lines. The working principle of an electric motor is that the magnetic field exerts a force on the current, causing the motor to rotate.

[0003] A search revealed that Chinese patent CN222563654U discloses a "motor for a fully automatic paper shredder," which includes a motor housing, a magnet installed inside the housing, a rotatable rotor installed inside the housing, and openings at the upper and lower ends of the housing. An upper cover and a bottom cover are installed in the openings respectively, and the rotor is mounted between the upper and bottom covers via bearings. The rotor has a mounting head that passes through the bottom cover at its tail end, and an axial fan is fixed to the mounting head. This fully automatic paper shredder motor, during operation, utilizes the rotation of the motor itself to drive the axial fan at its tail end, drawing cool air from outside the motor to cool it down, effectively extending its service life. However, it still has the following drawbacks:

[0004] (1) The existing paper shredder motor is installed in the slot, and the slot does not provide any shielding. The noise generated by the motor is transmitted directly to the outside, which reduces the noise reduction effect of the motor.

[0005] (2) The existing paper shredder motor is positioned by fixing bolts installed in multiple bolt holes around the base plate. However, the operating space in the paper shredder mounting slot is limited, which makes it inconvenient to disassemble and assemble multiple bolts.

[0006] Therefore, we made improvements and proposed a silent motor for paper shredders. Utility Model Content

[0007] The purpose of this utility model is to address the problems of existing paper shredder motors being installed in slots without any obstruction, causing the noise generated by the motor to be transmitted directly outwards, thus reducing the motor's quietness effect; and existing paper shredder motors being positioned by fixing bolts installed in multiple sets of bolt holes around the base plate, which limits the operating space within the paper shredder mounting slot and makes it inconvenient to disassemble and assemble multiple bolts.

[0008] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0009] A silent motor for a paper shredder is proposed to improve the above-mentioned problems.

[0010] The present invention is as follows:

[0011] The machine includes a body, a paper shredder opening on the upper side of the body, a front slot on the front side of the body, a sealing component on the lower side of the front end of the front slot, and a disassembly component inside the rear end of the front slot.

[0012] The enclosed component includes a bottom groove opened at the lower side of the front end of the front groove, and a sealing plate is movably disposed inside the bottom groove;

[0013] The assembly and disassembly assembly includes a docking groove on the rear side wall of the front groove, into which the motor body can be detachably inserted. Side grooves are provided on both sides of the docking groove, and side plates that cooperate with the side grooves are provided on both sides of the motor body.

[0014] As a preferred technical solution of this utility model, the bottom groove is provided with side grooves on the front and rear sides, and the lower end of the sealing plate is provided with side plates that cooperate with the side grooves on the front and rear sides.

[0015] As a preferred technical solution of this utility model, a first telescopic rod is connected to the upper end of the side plate, and a first spring is fitted on the outer wall of the first telescopic rod.

[0016] As a preferred technical solution of this utility model, the side plate has a groove inside, and a pull plate is movably arranged inside the groove.

[0017] As a preferred technical solution of this utility model, a retaining plate is provided on the surface of the pull plate away from the motor body, and a retaining groove is provided on the side wall of the side groove to cooperate with the retaining plate.

[0018] As a preferred technical solution of this utility model, a second telescopic rod is provided on the surface of the pull plate away from the card plate, and a second spring is fitted on the outer wall of the second telescopic rod.

[0019] As a preferred technical solution of this utility model, the cross-sectional dimensions of the bottom groove are matched with the cross-sectional dimensions of the sealing plate.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] In the solution of this utility model:

[0022] 1. With the bottom groove, sealing plate, side plates, first telescopic rod, and first spring, when the motor needs to be disassembled and maintained, the sealing plate is pulled down to move downward in the bottom groove, which in turn moves the front and rear side plates downward in the side grooves. This stretches the first telescopic rod and the first spring, opening the front groove and facilitating the disassembly and maintenance of the motor body installed inside the front groove. After maintenance, the motor body is reinstalled in the front groove. Then, the tension on the sealing plate is released, and the first telescopic rod and the first spring pull the side plates upward, causing the sealing plate to move vertically upward from the bottom groove, thus directly closing the front groove and the motor body. This achieves better sound insulation and a quiet operation.

[0023] 2. Using the side plates, pull plates, second telescopic rod, and second spring, when the motor body needs to be disassembled, pull the two pull plates in opposite directions to slide them in the slot, causing the outer locking plate to disengage from the slot and slide into the slot. This compresses the second telescopic rod and the second spring, causing them to contract, which in turn pulls the motor body forward to disengage it from the docking slot. At the same time, it causes the side plates to disengage from the side slot, completing the disassembly. After the motor has been maintained, insert the motor body into the docking slot, insert the side plates into the side slot, release the tension of the pull plates, and the second telescopic rod and the second spring push the pull plates outward, causing the locking plates to insert into the aligned locking slots, completing the quick installation and fixing. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure of a silent motor for a paper shredder provided by this utility model;

[0025] Figure 2 A schematic diagram of a closed assembly structure for a silent motor used in a paper shredder, provided by this utility model;

[0026] Figure 3 A schematic diagram of the disassembly and assembly structure of a silent motor for a paper shredder provided by this utility model;

[0027] Figure 4 This utility model provides a silent motor for a paper shredder. Figure 3 A magnified schematic diagram of part A in the middle.

[0028] The image shows:

[0029] 1. Machine body; 2. Shredder opening; 3. Front slot; 401. Bottom slot; 402. Sealing plate; 403. Side slot; 404. Side plate; 405. First telescopic rod; 406. First spring; 501. Connecting slot; 502. Motor body; 503. Side slot; 504. Side plate; 505. Slot; 506. Pull plate; 507. Clamping plate; 508. Clamping slot; 509. Second telescopic rod; 510. Second spring. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0031] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] like Figure 1-4 As shown, this embodiment proposes a silent motor for a paper shredder, including a body 1, a paper shredding port 2 on the upper side of the body 1, a front groove 3 on the front side of the body 1, a sealing component on the lower side of the front end of the front groove 3, and a disassembly component inside the rear end of the front groove 3.

[0035] The enclosed component includes a bottom groove 401 opened on the lower side of the front end of the front groove 3, and a sealing plate 402 is movably disposed inside the bottom groove 401.

[0036] The assembly and disassembly assembly includes a docking groove 501 opened on the rear side wall of the front groove 3. The motor body 502 is detachably inserted into the docking groove 501. Side grooves 503 are opened on both sides of the docking groove 501. Side plates 504 that cooperate with the side grooves 503 are provided on both sides of the motor body 502.

[0037] like Figure 2 As shown, the bottom groove 401 has side grooves 403 on the front and rear sides. The lower end of the sealing plate 402 has side plates 404 that cooperate with the side grooves 403. The front and rear side plates 404 are driven to move downward in the side grooves 403, which stretches the first telescopic rod 405 and the first spring 406, thereby opening the front groove 3. This makes it easy to disassemble and maintain the motor body 502 installed inside the front groove 3.

[0038] like Figure 2As shown, a first telescopic rod 405 is connected to the upper end of the side plate 404. A first spring 406 is fitted on the outer wall of the first telescopic rod 405. When the first telescopic rod 405 and the first spring 406 are stretched, the front slot 3 is opened, which facilitates the disassembly and maintenance of the motor body 502 installed inside the front slot 3. After maintenance, the motor body 502 is reinstalled in the front slot 3. When the tension on the sealing plate 402 is released, the first telescopic rod 405 and the first spring 406 pull the side plate 404 upward, causing the sealing plate 402 to move vertically upward from the bottom slot 401, which can directly close the front slot 3.

[0039] like Figure 4 As shown, the side plate 504 has a slot 505 inside, and a pull plate 506 is movably arranged inside the slot 505. When the motor body 502 needs to be disassembled, the two pull plates 506 are pulled in opposite directions to slide in the slot 505, which drives the outer retaining plate 507 to disengage from the retaining groove 508 and slide into the slot 505.

[0040] like Figure 4 As shown, a retaining plate 507 is provided on the surface of the pull plate 506 away from the motor body 502. The side wall of the side groove 503 is provided with a retaining groove 508 that cooperates with the retaining plate 507. After the motor is maintained, the motor body 502 is inserted into the docking groove 501, so that the side plate 504 is inserted into the side groove 503. The pulling force on the pull plate 506 is released, and the second telescopic rod 509 and the second spring 510 push the pull plate 506 outward, so that the retaining plate 507 is inserted into the aligned retaining groove 508 to complete the quick installation and fixation.

[0041] like Figure 2 As shown, a second telescopic rod 509 is provided on the surface of the pull plate 506 away from the clamping plate 507. A second spring 510 is fitted on the outer wall of the second telescopic rod 509. The second telescopic rod 509 and the second spring 510 are squeezed together to retract, which can pull the motor body 502 forward to disengage it from the docking groove 501. At the same time, the side plate 504 is disengaged from the side groove 503, completing the disassembly. After the motor is maintained, the motor body 502 is inserted into the docking groove 501, the side plate 504 is inserted into the side groove 503, and the pulling force on the pull plate 506 is released. The second telescopic rod 509 and the second spring 510 push the pull plate 506 outward.

[0042] like Figure 2 As shown, the cross-sectional dimensions of the bottom groove 401 and the cross-sectional dimensions of the sealing plate 402 are matched. After maintenance, the motor body 502 is reinstalled in the front groove 3. Then, the tension on the sealing plate 402 is released, and the first telescopic rod 405 and the first spring 406 pull the side plate 404 upward, causing the sealing plate 402 to move vertically upward from the bottom groove 401, which can directly seal the front groove 3 and seal the motor body 502 to achieve better sound insulation.

[0043] Specifically: When the motor needs to be disassembled and maintained, pull down the sealing plate 402 to move it downwards within the bottom groove 401, causing the front and rear side plates 404 to move downwards within the side grooves 403. This stretches the first telescopic rod 405 and the first spring 406, opening the front groove 3. This facilitates the disassembly and maintenance of the motor body 502 installed inside the front groove 3. After maintenance, reinstall the motor body 502 in the front groove 3, release the tension on the sealing plate 402. The first telescopic rod 405 and the first spring 406 then pull the side plates 404 upwards, causing the sealing plate 402 to move vertically upwards from the bottom groove 401, directly sealing the front groove 3 and the motor body 502. This achieves better sound insulation and a quiet operation. When the motor body 502 needs to be disassembled and maintained... 02 During disassembly, pull the two side plates 506 in opposite directions to slide them in the slot 505, causing the outer retaining plate 507 to disengage from the slot 508 and slide into the slot 505. This compresses the second telescopic rod 509 and the second spring 510, causing them to contract. This pulls the motor body 502 forward, causing it to disengage from the docking slot 501. At the same time, it causes the side plate 504 to disengage from the side slot 503, completing the disassembly. After maintaining the motor, insert the motor body 502 into the docking slot 501, insert the side plate 504 into the side slot 503, and release the tension of the pull plate 506. The second telescopic rod 509 and the second spring 510 push the pull plate 506 outward, causing the retaining plate 507 to insert into the aligned slot 508, completing the quick installation and fixing.

[0044] All technical features in this embodiment can be freely combined according to actual needs.

[0045] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A silent motor for a paper shredder, comprising a body (1), characterized in that: The upper side of the machine body (1) is provided with a paper shredder (2), the front side of the machine body (1) is provided with a front groove (3), the lower side of the front end of the front groove (3) is provided with a sealing component, and the rear end of the front groove (3) is provided with a disassembly component. The enclosed component includes a bottom groove (401) opened on the lower side of the front end of the front groove (3), and a sealing plate (402) is movably provided inside the bottom groove (401). The assembly and disassembly assembly includes a docking groove (501) opened on the rear side wall of the front groove (3), a motor body (502) is detachably inserted inside the docking groove (501), side grooves (503) are opened on both sides of the docking groove (501), and side plates (504) that cooperate with the side grooves (503) are provided on both sides of the motor body (502).

2. The silent motor for a paper shredder according to claim 1, characterized in that, The bottom groove (401) has side grooves (403) on the front and back sides, and the sealing plate (402) has side plates (404) on the front and back sides of the lower end that cooperate with the side grooves (403).

3. A silent motor for a paper shredder according to claim 2, characterized in that, The upper end of the side plate (404) is connected to a first telescopic rod (405), and a first spring (406) is fitted on the outer wall of the first telescopic rod (405).

4. A silent motor for a paper shredder according to claim 1, characterized in that, The side plate (504) has a slot (505) inside, and a pull plate (506) is movably disposed inside the slot (505).

5. A silent motor for a paper shredder according to claim 4, characterized in that, The pull plate (506) has a card plate (507) on the side away from the motor body (502), and the side wall of the side groove (503) has a card groove (508) that cooperates with the card plate (507).

6. A silent motor for a paper shredder according to claim 5, characterized in that, A second telescopic rod (509) is provided on the surface of the pull plate (506) away from the card plate (507), and a second spring (510) is fitted on the outer wall of the second telescopic rod (509).

7. A silent motor for a paper shredder according to claim 1, characterized in that, The cross-sectional dimensions of the bottom groove (401) are matched with the cross-sectional dimensions of the sealing plate (402).