Paper shredding equipment
By incorporating a fan assembly and a paper full sensor into the shredder, the problems of dust explosions and electrostatic triggering caused by paper scraps have been solved, thus ensuring the safety and reliability of the equipment.
Patent Information
- Application Number
- CN202423133868.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing paper shredding equipment has problems such as paper scraps easily causing dust explosions and static electricity accidentally triggering sensing elements.
A fan assembly and a paper full sensor are installed in the paper shredding equipment. The fan assembly blows air into the paper scrap collection chamber to prevent paper scraps or static electricity from approaching the sensor. The heat is dissipated through the heat dissipation channel, and an air outlet is provided to ensure ventilation and prevent dust explosion.
This effectively avoids false triggering of the paper full sensor, prevents dust explosions, and extends the service life of the paper shredder motor.
Smart Images

Figure CN223655177U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a paper shredder, belonging to the field of office equipment technology. Background Technology
[0002] Currently, paper shredders are office equipment used to shred paper. A typical paper shredder consists of a shredder at the top and a shredder bin at the bottom. The shredder discharges the shredded paper scraps into the shredder bin. For example, Chinese Patent No. CN222152347U discloses an office paper shredder with this structure. However, with this type of shredder, the shredder bin contains a large amount of paper scraps, and due to poor ventilation, there is a potential for dust explosions. Furthermore, the paper scraps in the shredder bin are subject to static electricity, causing them to stick to the sensing elements inside the bin and trigger false alarms. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a paper shredding device that can avoid the phenomenon of false triggering of the paper full sensing element.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a paper shredding device, comprising:
[0005] Paper shredder;
[0006] A shredder bin is installed at the bottom of the shredder to collect the shredded paper scraps. The shredder bin and the shredder together form a paper scrap collection chamber.
[0007] A fan assembly suitable for supplying air into the paper scrap collection cavity is installed on the upper wall surrounding the paper scrap collection cavity;
[0008] On the upper wall surrounding the paper scrap collection chamber, near the fan assembly, there is a paper fullness sensor for detecting whether the paper scrap collection chamber is full.
[0009] Furthermore, the paper full-sensing element is a diffuse infrared sensor.
[0010] Furthermore, the paper shredder includes a housing, and the upper wall surrounding the paper scrap collection chamber is the bottom wall of the housing.
[0011] Furthermore, in order to dissipate heat from the installation space inside the housing, the housing has an installation space inside, and a heat dissipation channel connected to the installation space is opened on the bottom wall of the housing. The fan assembly is adapted to draw hot air from the installation space through the heat dissipation channel.
[0012] Furthermore, in order to ensure effective ventilation inside the shredder and prevent dust explosions, an air outlet is provided on the outer wall of the shredder.
[0013] Furthermore, to prevent paper scraps from flying out of the paper inlet, the paper shredder is provided with a paper inlet, a paper scrap outlet, and a paper shredding channel. The paper shredding channel is connected to the paper inlet and the paper scrap outlet, and the paper scrap outlet is connected to the paper scrap collection chamber. Under the action of the fan assembly, the airflow direction in the paper inlet, the paper shredding channel, and the paper scrap outlet is, in sequence, the paper inlet, the paper shredding channel, and the paper scrap outlet.
[0014] Furthermore, the fan assembly and the paper full sensing element are arranged side by side and closely attached.
[0015] After adopting the above technical solution, this utility model has the following beneficial effects:
[0016] 1. Place the paper full sensor next to the fan assembly. The fan assembly will blow paper scraps or static electricity away from the area where the paper full sensor is placed. Paper scraps or static electricity will not easily approach the paper full sensor, so that paper scraps will not be attracted to the paper full sensor and cause false triggering.
[0017] 2. Because of the fan assembly, the fan assembly blows air into the paper scrap collection chamber, so that the airflow direction in the paper inlet, paper scrap channel and paper scrap outlet is paper inlet, paper scrap channel and paper scrap outlet in sequence, thus avoiding the phenomenon of paper scraps or dust floating out from the paper inlet.
[0018] 3. Because the outer wall of the shredder has an air outlet, and due to the action of the fan assembly, the shredder has a good ventilation environment, preventing the occurrence of dust explosions;
[0019] 4. Since a paper shredder motor is installed in the installation space, heat dissipation channels are set up to remove the heat generated by the paper shredder motor during operation, thereby cooling the paper shredder motor and extending its working time. Attached Figure Description
[0020] Figure 1 This is a perspective view of the paper shredding device of this utility model;
[0021] Figure 2 The three-dimensional paper shredder of this utility model Figure 1 ;
[0022] Figure 3 The three-dimensional paper shredder of this utility model Figure 2 ;in,
[0023] 1. Paper shredder; 11. Housing; 12. Heat dissipation channel; 13. Paper inlet; 14. Paper scrap outlet; 2. Shredder bin; 21. Air outlet; 3. Fan assembly; 4. Paper full sensor. Detailed Implementation
[0024] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0025] like Figures 1-3 As shown, a paper shredding device includes:
[0026] Paper shredder 1;
[0027] Shredder 2 is installed at the bottom of shredder 1 to collect the paper scraps produced by shredder 1. Shredder 2 and shredder 1 form a paper scrap collection chamber; wherein,
[0028] A fan assembly 3, suitable for supplying air into the paper scrap collection chamber, is installed on the upper wall of the chamber.
[0029] On the upper wall surrounding the paper scrap collection chamber, near the fan assembly 3, there is a paper fullness sensor 4 for detecting whether the paper scrap collection chamber is full.
[0030] In this embodiment, the specific structure of the paper shredder 1 can be referred to the specific structure of a paper conveying device disclosed in CN116969218B.
[0031] In this embodiment, the paper full sensor 4 is placed next to the fan assembly 3. The fan assembly 3 blows paper scraps or static electricity away from the area where the paper full sensor 4 is placed, so that paper scraps or static electricity are not easy to approach the paper full sensor 4. In this way, paper scraps will not be attracted to the paper full sensor 4, causing false triggering.
[0032] Specifically, such as Figure 3 As shown, the paper-filled sensing element 4 can specifically be a diffuse infrared sensor.
[0033] Specifically, such as Figure 3 As shown, the paper shredder 1 includes a housing 11, and the upper wall surrounding the paper scrap collection chamber is the bottom wall of the housing 11.
[0034] Specifically, such as Figure 3 As shown, in order to dissipate heat from the installation space inside the housing 11, there is an installation space inside the housing 11, and a heat dissipation channel 12 connected to the installation space is opened on the bottom wall of the housing 11. The fan assembly 3 is adapted to draw hot air from the installation space through the heat dissipation channel 12.
[0035] In this embodiment, a paper shredder motor is installed in the installation space. The paper shredder motor will generate heat when it works for a long time. By setting up the heat dissipation channel 12, the heat dissipated by the paper shredder motor can be removed, thereby cooling the paper shredder motor and extending its working time.
[0036] Specifically, such as Figure 1As shown, in order to achieve effective ventilation inside the shredder 2 and prevent dust explosions, an air outlet 21 is provided on the outer wall of the shredder 2. In this embodiment, the fan assembly 3 blows air, which is discharged from the air outlet 21, thereby achieving effective ventilation of the shredder 2 and preventing dust explosions. Specifically, the air outlet 21 in this embodiment is provided with a grille or tiny slits to prevent paper scraps from flying out.
[0037] Specifically, to prevent paper scraps from blowing out of the paper inlet 13, such as Figure 2 , 3 As shown, the shredder 1 is equipped with a paper inlet 13, a paper scrap outlet 14, and a shredding channel. The shredding channel is connected to the paper inlet 13 and the paper scrap outlet 14, and the paper scrap outlet 14 is connected to the paper scrap collection chamber. Under the action of the fan assembly 3, the airflow direction in the paper inlet 13, the shredding channel, and the paper scrap outlet 14 is, in sequence, the paper inlet 13, the shredding channel, and the paper scrap outlet 14. Because the fan assembly 3 is provided, it blows air into the paper scrap collection chamber, resulting in the airflow direction in the paper inlet 13, the shredding channel, and the paper scrap outlet 14 being, in sequence, the paper inlet 13, the shredding channel, and the paper scrap outlet 14. This avoids the phenomenon of paper scraps or dust floating out from the paper inlet 13.
[0038] Specifically, the fan assembly 3 and the paper full sensor element 4 are arranged side by side and closely attached.
[0039] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A paper shredding device, characterized in that, include: Paper shredder (1); A shredder (2) is installed at the bottom of the shredder (1) and is used to collect the paper scraps shredded by the shredder (1). The shredder (2) and the shredder (1) form a paper scrap collection chamber. A fan assembly (3) suitable for supplying air into the paper scrap collection cavity is installed on the upper wall of the paper scrap collection cavity; A paper fullness sensing element (4) for detecting whether the paper scraps in the paper scrap collection chamber are overflowing is also installed on the upper wall of the paper scrap collection chamber near the fan assembly (3).
2. The paper shredder according to claim 1, characterized in that: The paper full sensing element (4) is a diffuse infrared sensor.
3. The paper shredder according to claim 1, characterized in that, The paper shredder (1) includes a housing (11), and the upper wall surrounding the paper scrap collection chamber is the bottom wall of the housing (11).
4. The paper shredder according to claim 3, characterized in that, The housing (11) has an installation space inside, and a heat dissipation channel (12) communicating with the installation space is opened on the bottom wall of the housing (11). The fan assembly (3) is adapted to draw hot air from the installation space through the heat dissipation channel (12).
5. The paper shredder according to claim 1, characterized in that, The outer wall of the shredder (2) is provided with an air outlet (21).
6. The paper shredder according to claim 1, characterized in that, The paper shredder (1) is provided with a paper inlet (13), a paper scrap outlet (14) and a paper shredding channel. The paper shredding channel is connected to the paper inlet (13) and the paper scrap outlet (14). The paper scrap outlet (14) is connected to the paper scrap collection chamber. Under the action of the fan assembly (3), the air flow direction in the paper inlet (13), the paper shredding channel and the paper scrap outlet (14) is in the order of paper inlet (13), paper shredding channel and paper scrap outlet (14).
7. The paper shredder according to claim 1, characterized in that, The fan assembly (3) and the paper full sensor (4) are arranged side by side and closely attached.
Citation Information
Patent Citations
Paper conveying device
CN116969218B
Paper shredder for office
CN222152347U