Handheld dust collector with spherical inner container
By combining a spherical inner liner with a warning circuit, the problem of reduced separation efficiency of handheld vacuum cleaners when there is a large amount of debris is solved, enabling timely reminders and performance maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU ROYAL CLEANLAND ELECTRIC CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-05-01
AI Technical Summary
When there is a lot of debris, the metal filter of the existing handheld vacuum cleaner becomes less effective at separating debris, resulting in poor cleaning efficiency, but users may not notice this in time.
It features a spherical inner liner design, combined with blue light transmittance and temperature detection, and uses a warning circuit to control an indicator light to remind the user that the vacuum cleaner's effectiveness has decreased.
Promptly remind users when the vacuum cleaner's effectiveness decreases, ensuring cleaning results and extending the vacuum cleaner's lifespan.
Smart Images
Figure CN224179646U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum cleaner technology, and in particular to a handheld vacuum cleaner with a spherical inner liner. Background Technology
[0002] Handheld vacuum cleaners are a powerful tool for modern home cleaning, favored by users for their portability, flexibility, and efficiency. Their strong suction, powered by advanced motor technology and a cyclone separation system, effectively removes dust and debris from floors, carpets, sofas, and even car interior crevices. Handheld vacuum cleaners also come equipped with various attachments, such as crevice tools, soft brush heads, and wide-angle brush heads, to meet different cleaning needs, easily handling both stubborn stains and fine dust.
[0003] However, current handheld vacuum cleaners have a problem: when separating debris and air through a metal filter, the separation effect of the metal filter drops sharply once the amount of debris increases, causing the handheld vacuum cleaner to become less effective. However, in actual use, unless the user pays close attention to the cleaning of the handheld vacuum cleaner, this decrease in cleaning effect will be difficult to detect.
[0004] Therefore, a handheld vacuum cleaner with a spherical inner liner is proposed to solve or alleviate the above problems. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a handheld vacuum cleaner with a spherical inner liner.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A handheld vacuum cleaner with a spherical inner liner includes a hopper and a mounting shell, a spherical inner liner detachably connected between the hopper and the mounting shell, and a spherical transparent cover detachably connected to the hopper and the mounting shell and fitted over the outside of the spherical inner liner. A blue light is installed inside the mounting shell, and an indicator light is installed on the mounting shell. The vacuum cleaner also includes a warning circuit, which is coupled to the indicator light. The warning circuit collects the temperature inside the mounting shell and the intensity of the blue light transmitted through the spherical transparent cover and controls whether the indicator light illuminates.
[0008] Preferably, the receiving hopper has a detachable filter bag, and the receiving hopper has several exhaust holes.
[0009] Preferably, the mounting shell has an inwardly recessed groove, and a blue filter is fixedly connected to the opening of the groove. The warning circuit includes a photodiode, a transimpedance amplifier, and a first voltage comparator. The photodiode is disposed in the groove and faces the spherical transparent cover. The photodiode is coupled to the input terminal of the first voltage comparator through the transimpedance amplifier.
[0010] Preferably, the warning circuit further includes a thermistor, a voltage divider circuit, and a second voltage comparator. The thermistor is disposed inside the mounting housing and is fitted into the inner spherical surface. The thermistor is coupled to the input terminal of the second voltage comparator through the voltage divider resistor.
[0011] Preferably, the warning circuit further includes an AND gate circuit, a timing circuit, and a switching circuit. The output terminals of the first voltage comparator and the second voltage comparator are coupled to the input terminal of the AND gate circuit. The output terminal of the AND gate circuit is coupled to the input terminal of the timing circuit through an inverter. The output terminal of the timing circuit is coupled to the controlled terminal of the switching circuit. The energized terminal of the switching circuit is energized, and the discharge terminal of the switching circuit is coupled to the indicator light.
[0012] Preferably, the timing circuit includes a minimum circuit based on a 555 timer chip, and the switching circuit includes a transistor switch.
[0013] Preferably, the indicator light is red.
[0014] This utility model has the following beneficial effects:
[0015] During operation, dust and other debris enter the spherical inner liner. Large particles are retained, while small particles, such as dust, enter the collection hopper and are intercepted by the filter bag. As the operating time increases, the air permeability of the spherical inner liner deteriorates, the intensity of blue light transmission decreases, and the temperature rises. When the blue light intensity is lower than the preset reference voltage and the temperature is higher than the preset reference voltage, the AND gate circuit outputs a signal to the timing circuit. After the timing ends, the switching circuit illuminates a red indicator light to remind the user that the vacuum cleaner's effectiveness has decreased. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a partial exploded view of the present invention;
[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0020] Figure 4 This is a structural block diagram of the early warning circuit in this utility model.
[0021] 1. Feed hopper; 2. Vent; 3. Spherical inner liner; 4. Spherical transparent cover; 5. Photodiode; 6. Transimpedance amplifier; 7. First voltage comparator; 8. Thermistor; 9. Voltage divider circuit; 10. Second voltage comparator; 11. AND gate circuit; 12. Timing circuit; 13. Switching circuit; 14. Indicator light. Detailed Implementation
[0022] 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 embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0024] 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.
[0025] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] A handheld vacuum cleaner with a spherical inner liner, such as Figures 1 to 3 As shown, the device includes a receiving hopper 1 and a mounting shell, a spherical inner liner 3 detachably connected between the receiving hopper 1 and the mounting shell, and a spherical transparent cover 4 detachably connected to the receiving hopper 1 and the mounting shell and fitted over the spherical inner liner 3. A blue light is installed inside the mounting shell, and an indicator light 14 is installed on the mounting shell. The indicator light 14 is red. The device also includes a warning circuit, which is coupled to the indicator light 14. The warning circuit collects the temperature inside the mounting shell and the intensity of the blue light transmitted through the spherical transparent cover 4 and controls whether the indicator light 14 is lit.
[0029] The receiving hopper 1 contains a detachable filter bag. The receiving hopper 1 has several exhaust holes 2. The mounting shell is recessed inward to form a groove. A blue filter is fixedly connected to the opening of the groove. The warning circuit includes a photodiode 5, a transimpedance amplifier 6, and a first voltage comparator 7. The photodiode 5 is set in the groove and faces the spherical transparent cover 4. The photodiode 5 is coupled to the input terminal of the first voltage comparator 7 through the transimpedance amplifier 6.
[0030] like Figure 4 As shown, the warning circuit also includes a thermistor 8, a voltage divider circuit 9, and a second voltage comparator 10. The thermistor 8 is disposed inside the mounting housing and is attached to the spherical inner liner 3. The thermistor 8 is coupled to the input terminal of the second voltage comparator 10 through the voltage divider resistor. The warning circuit also includes an AND gate circuit 11, a timing circuit 12, and a switching circuit 13. The output terminals of the first voltage comparator 7 and the second voltage comparator 10 are coupled to the input terminal of the AND gate circuit 11. The output terminal of the AND gate circuit 11 is coupled to the input terminal of the timing circuit 12 through an inverter. The output terminal of the timing circuit 12 is coupled to the controlled terminal of the switching circuit 13. The power-on terminal of the switching circuit 13 is energized, and the discharge terminal of the switching circuit 13 is coupled to the indicator light 14. The timing circuit 12 includes a minimum circuit based on a 555 timer chip, and the switching circuit 13 includes a transistor switch.
[0031] When this utility model is in operation, dust and other garbage will enter the spherical inner liner 3 through the mounting shell, so that larger garbage can be retained in the spherical inner liner 3, while smaller garbage, such as dust particles, can enter the collection hopper 1 and be intercepted by the filter bag in the collection hopper 1, thereby completing the recycling of garbage.
[0032] As operating time increases, dust and debris accumulate on the spherical inner chamber 3, causing its air permeability and filtration effect to deteriorate. This reduced filtration means that the intensity of the blue light emitted by the blue lamp decreases after passing through the spherical inner chamber 3 and the spherical transparent cover 4. Similarly, the decreased filtration effect of the spherical inner chamber 3 also makes it difficult to dissipate heat generated by other electrical components within the housing, leading to a rise in the temperature of the spherical inner chamber 3. At this point, the blue light filtered by the blue filter... When the diode 5 receives the signal and ensures that the blue light intensity signal voltage is less than the first reference voltage preset in the first voltage comparator 7, and the temperature signal voltage is greater than the second reference voltage preset in the second voltage comparator 10, the AND gate circuit 11 responds and outputs an AND gate signal to the timing circuit 12. The timing circuit 12 then starts timing and outputs a timing signal to the switch circuit 13 within the timing time. At this time, the indicator light 14 is powered on and emits a red light. The red light is more conspicuous so that the user can promptly notice the problem that the effectiveness of the handheld vacuum cleaner is starting to deteriorate.
[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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 handheld vacuum cleaner with a spherical inner liner, characterized in that, The device includes a receiving hopper (1) and a mounting shell, a spherical inner liner (3) detachably connected between the receiving hopper (1) and the mounting shell, and a spherical transparent cover (4) detachably connected to the receiving hopper (1) and the mounting shell and fitted outside the spherical inner liner (3). A blue light is provided inside the mounting shell, and an indicator light (14) is provided on the mounting shell. The device also includes a warning circuit, which is coupled to the indicator light (14). The warning circuit collects the temperature inside the mounting shell and the intensity of the blue light transmitted through the spherical transparent cover (4) and controls whether the indicator light (14) is lit.
2. A handheld vacuum cleaner with a spherical inner liner according to claim 1, characterized in that, The receiving hopper (1) contains a detachable filter bag, and the receiving hopper (1) has several exhaust holes (2).
3. A handheld vacuum cleaner with a spherical inner liner according to claim 1, characterized in that, The mounting shell is recessed inward to form a groove, and a blue filter is fixedly connected to the opening of the groove. The warning circuit includes a photodiode (5), a transimpedance amplifier (6), and a first voltage comparator (7). The photodiode (5) is disposed in the groove and faces the spherical transparent cover (4). The photodiode (5) is coupled to the input terminal of the first voltage comparator (7) through the transimpedance amplifier (6).
4. A handheld vacuum cleaner with a spherical inner liner according to claim 3, characterized in that, The warning circuit also includes a thermistor (8), a voltage divider circuit (9), and a second voltage comparator (10). The thermistor (8) is disposed inside the mounting housing and is attached to the spherical inner liner (3). The thermistor (8) is coupled to the input terminal of the second voltage comparator (10) through the voltage divider resistor.
5. A handheld vacuum cleaner with a spherical inner liner according to claim 4, characterized in that, The warning circuit also includes an AND gate circuit (11), a timing circuit (12), and a switching circuit (13). The output terminals of the first voltage comparator (7) and the second voltage comparator (10) are coupled to the input terminal of the AND gate circuit (11). The output terminal of the AND gate circuit (11) is coupled to the input terminal of the timing circuit (12) through an inverter. The output terminal of the timing circuit (12) is coupled to the controlled terminal of the switching circuit (13). The power-on terminal of the switching circuit (13) is energized. The discharge terminal of the switching circuit (13) is coupled to the indicator light (14).
6. A handheld vacuum cleaner with a spherical inner liner according to claim 5, characterized in that, The timing circuit (12) includes a minimum circuit based on a 555 timer chip, and the switching circuit (13) includes a transistor switch.
7. A handheld vacuum cleaner with a spherical inner liner according to claim 1, characterized in that, The indicator light (14) is red.