TWI459924B - Vacuum device with warning function and warning method thereof - Google Patents

Description

Dust collecting device with warning function and warning method thereof

The invention relates to a dust collecting device with a warning function and a warning method thereof, in particular to a dust collecting device capable of warning a user to replace a filter screen with a warning function and a warning method thereof.

With the advancement of technology, a variety of electronic cleaning devices have become an indispensable part of modern life. For example, vacuum cleaners have become almost indispensable for home appliances. Nowadays, the vacuum cleaners are often equipped with a filter screen and a dust bag. Although dust collectors that do not require a dust bag have been developed in recent years, their price is not popular. Generally, a vacuum cleaner having a filter screen and a dust collecting bag often encounters too much impurities attached to the filter screen during use, so that the dust suction device cannot effectively achieve the dust suction capability.

When the filter is used for a long time and accumulated a lot of dust, the airflow generated by the fan will not easily pass through the filter, so that the heat energy in the power supply cannot be effectively discharged, thereby affecting the operation performance of the power supply. Therefore, in order to keep the fan-driven airflow unobstructed, it is necessary to periodically clean or replace the filter screen. However, the mechanisms used to detect the filter replacement timing are generally as follows: (1) Use a fixed period of time to notify the use. The filter is replaced, but this method does not correspond to the status of each power supply, such as setting the environment or the duty cycle, etc., to make adjustments, the accuracy of this mechanism is not Good and not economical. (2) The mechanism is used to measure the pressure of the airflow passing through the filter to detect the replacement timing of the filter. However, since the airflow pressure is extremely small and difficult to detect, if the mechanism design is not precise, the timing of detecting the filter replacement will not be accurate. (3) Using the transmittance of light or the refraction of light to perform light sensing on the filter to determine the amount of dust on the filter, and then to detect the timing of replacement of the filter, however, due to the light source signal received by the light source receiver The position of the light source receiver or the light source generator may be set, for example, in an environment that is more likely to cover dust, or the type and characteristics of dust on the filter mesh, and the amount of dust in the filter cannot be accurately determined. The timing of the detection filter replacement will not be accurate.

In view of this, how to design an ideal dust-collecting device with warning function and its warning method to accurately inform the user of the timing of replacing the filter screen has become an urgent issue in the market application. Therefore, the inventors of the present invention have conceived and designed a dust-collecting device with a warning function and a warning method thereof to improve the lack of the prior art, thereby enhancing the industrial use and utilization.

In view of the above-mentioned problems of the prior art, one of the objects of the present invention is to provide a dust collecting device with a warning function to solve the problem that the user cannot be reminded to replace the filter screen at present.

One of the objects of the present invention is to provide a dust collecting device with a warning function, comprising: a body, a filter screen, a fan unit, a driving module, a detecting module and a warning unit. The body has a receiving space and a vacuum passage. The filter screen is disposed on one side of the suction passage. The fan unit is disposed in the accommodating space and located on the other side of the dust suction passage. The driving module is disposed in the accommodating space to drive the fan unit to move the dust suction device through the side of the dust suction passage. Detection module electrical connection The driving module detects a load current value when the driving module drives the fan unit. The warning unit is electrically connected to the detection module.

When the detection module detects that the load current value is greater than or equal to a threshold value, the detection module transmits a warning signal to the warning unit to alert the user to replace the filter.

When the dust suction device performs the dust suction operation, the load current value gradually increases according to the increase in the mass of the filter attached.

Among them, when the amount of impurities attached to the filter reaches the maximum amount of adhesion, the air resistance entering the suction passage through the filter is maximum.

Wherein, when the air resistance through the filter to the suction passage is the maximum value, the load current value of the driving module is a threshold value.

Wherein, when the air resistance through the filter to the dust suction passage is a maximum value, the load current value of the driving module is based on a predetermined ratio to generate the threshold value.

Wherein, at least one exhaust passage is further disposed, and at least one exhaust passage is disposed on the other side of the fan unit opposite to the suction passage to discharge the air sucked by the fan unit.

According to another aspect of the present invention, a warning method is provided for a dust suction device, comprising the steps of: detecting a driving module by using a detecting module, and driving a fan unit; The test module determines whether the load current value is greater than or equal to a threshold value; if the load current value is greater than or equal to the threshold value, the detection module transmits a warning signal to the warning unit; the warning unit alerts the user to replace the filter.

When the dust suction device performs the dust suction operation, the load current value gradually increases according to the increase in the mass of the filter attached.

Wherein, when the amount of impurities attached to the filter reaches the maximum attachment value, the air resistance entering the suction passage through the filter is the maximum value.

Wherein, when the air resistance through the filter to the suction passage is the maximum value, the load current value of the driving module is a threshold value.

The method further includes the following steps: when the air resistance through the filter to the suction passage is a maximum value, the load current value of the driving module is based on a predetermined ratio to generate a threshold value.

The method further includes the steps of: disposing at least one exhaust passage on the other side of the fan unit opposite to the suction passage to discharge the air sucked by the fan unit.

According to the above, the dust collecting device with warning function and the warning method thereof according to the present invention may have one or more of the following advantages:

(1) The dust-collecting device with warning function and the warning method thereof can warn the user to replace the filter net to prevent the dust-collecting device from being blocked by the filter screen, thereby increasing the load of the motor, thereby causing the problem of damage of the dust suction device.

(2) The dust-collecting device with warning function and its warning method can remind the user to change the filter screen at a more precise time point, so as to more economical cost and at the same time make the life of the vacuum cleaner device last longer.

1‧‧‧Dust collector

10‧‧‧ Ontology

101‧‧‧ accommodating space

1011‧‧‧ exhaust passage

102‧‧‧Dust suction channel

103‧‧‧Dust suction

11‧‧‧ Filter

12‧‧‧Fan unit

13‧‧‧Drive Module

131‧‧‧Load current value

14‧‧‧Detection module

141‧‧‧ threshold

142‧‧‧ warning signal

15‧‧‧Warning unit

16‧‧‧Power Module

17‧‧‧Control Module

S61~S64‧‧‧ Process steps

Figure 1 is a block diagram of a dust suction device with a warning function of the present invention.

Figure 2 is a schematic view of the dust suction device with the warning function of the present invention.

Figure 3 is a first schematic view of a first embodiment of a dust suction device having a warning function of the present invention.

Fig. 4 is a second schematic view showing the first embodiment of the dust suction device with the warning function of the present invention.

Fig. 5 is a third schematic view showing the first embodiment of the dust suction device with the warning function of the present invention.

Figure 6 is a flow chart of the warning method of the present invention.

The technical features, contents, and advantages of the present invention, as well as the advantages thereof, can be understood by the present inventors, and the present invention will be described in detail with reference to the accompanying drawings. The subject matter is only for the purpose of illustration and description. It is not intended to be a true proportion and precise configuration after the implementation of the present invention. Therefore, the scope and configuration relationship of the attached drawings should not be interpreted or limited. First described.

The embodiments of the dust suction device and the warning method thereof according to the present invention will be described with reference to the related drawings. For the sake of understanding, the same components in the following embodiments are denoted by the same reference numerals.

Please refer to Figure 1 and Figure 2 together. 1 is a block diagram of a dust suction device with a warning function of the present invention; and FIG. 2 is a schematic view of a dust suction device with a warning function according to the present invention. As shown in the figure, the dust collecting device 1 includes a main body 10, a filter screen 11, a fan unit 12, a driving module 13, a detecting module 14, and a warning unit 15. The body 10 has an accommodating space 101 and a dust suction passage 102. The filter screen 11 is disposed on one side of the dust suction passage 102. The fan unit 12 is disposed on the other side of the suction passage 102. The fan unit 12 is electrically connected to the driving module 13 and disposed in the accommodating space 101. The fan unit 12 can be axial flow or centrifugal, and can be changed according to actual needs. The detection module 14 is electrically connected to the driving module 13 to detect a load current value 131 when the driving module 13 drives the fan unit 12 . The warning unit 15 is electrically connected to the detection module 14. The warning unit 15 can be a light-emitting unit (such as a light-emitting diode), a sound-effect unit, or can display related information in a display module, and can be designed according to actual needs. The drive module 13 drives the fan unit 12 to operate to cause the dust suction device 1 to perform a dust suction operation. When the cleaning device 1 performs the cleaning operation, the detecting module 14 detects the load current value 131 of the driving module 13. When the load current value 131 is equal to or greater than a threshold value 141, the detecting module 14 transmits an alert signal. 142 to the warning unit 15, the warning unit 15 can be designed to issue a warning sound or a warning light to remind the user to replace the filter. In the actual application, the driving current value 131 can be further set to stop when the load current value 131 is greater than the threshold value 141, so as to prevent the driving module 13 from being damaged due to the load becoming large.

Please refer to FIG. 3, which is a first schematic view of a first embodiment of a dust suction device with a warning function according to the present invention. As shown in the figure, the dust collecting device 1 comprises: a body 10, a filter 11, a fan unit 12, a driving module 13, a detecting module 14, a warning unit 15, a power module 16 and a control Module 17. One end of the outer side of the body 10 is provided with a dust suction port 103 having an accommodation space 101 therein. The filter screen 11 and the drive module 13 are disposed in the accommodating space 101, and a filter passage 102 is formed between the filter screen 11 and the drive module 13. The position of the filter screen 11 corresponds to the position of the dust suction port 103 on the outer side of the body 10, and the two can be disposed on the same axis. However, the size of the dust suction device 1 can be set on different axes in practical applications. The fan unit 12 is electrically connected to the driving module 13; the driving module 13 is electrically connected to the power module 16. The accommodating space 101 may be provided with an exhaust passage 1011 according to an actual requirement, and the exhaust passage 1011 is disposed around the outside of the fan unit 12 to exclude air taken in by the fan unit 12. Detection module 14 is electrically connected Dynamic module 13. The control module 17 is electrically connected to the detection module 14, the warning unit 15, and the power module 16. The warning unit 15 can be a light emitting diode and can be disposed on the outer side of the body 10 . When the cleaning device 1 performs the dusting operation, the detecting module 14 detects the load current value of the driving module 13 at any time. If the detecting module 14 detects that the load current value is greater than or equal to a threshold value, the detecting module 14 transmits After the warning signal is sent to the control module 17, the control module 17 receives the warning signal, then controls the light-emitting diode (the warning unit 15) to issue a warning light (such as a continuous flash), and the control module 17 causes the power module 16 to The power supply driving module 13 is stopped, and the dust suction device 1 is stopped.

Specifically, the dust collecting port 103 is disposed outside the body 10, and the receiving space 101 in the body 10 is provided with a filter screen 11, a dust suction passage 102, a fan unit 12 and a driving module 13 correspondingly to the dust suction port 103. The driving module 13 is electrically connected to the power module 16 , and the detecting module 14 is disposed between the driving module 13 and the power module 16 to detect the current load value of the driving module 13 at any time. The control module 17 is electrically connected to the detection module 14, the warning unit 15, and the power module 16. When the fan unit 12 is driven by the driving module 13, the air outside the dust suction port 103 is sucked into the body 10, and the filter 11 filters the impurities of a certain size, and then is discharged out of the body 10 through the fan unit 12 and the exhaust passage 1011. As the adhesion quality of the filter 11 increases, the drive module 13 needs a larger current to achieve the same dust suction effect, that is, the load current value of the drive module 13 increases as the impurity amount attached to the filter 11 increases. When the detecting module 14 detects that the load current is greater than or equal to the threshold value, it sends an alert signal to the control module 17, and the control module 17 stops the driving module 13 from operating, and simultaneously causes the light emitting diode (the warning unit) 15) A flashing light is sent to remind the user to replace the filter.

Please refer to Figure 4 and Figure 5 together. 4 is a second schematic view of a first embodiment of a dust suction device with a warning function according to the present invention; and FIG. 5 is a third schematic view of a first embodiment of the dust suction device with a warning function according to the present invention. As shown in Figure 4, the load The current value increases with the increase of the impurity content of the filter. When the filter attached impurity reaches a certain value (point A in the figure), the load current value reaches the maximum value, which is the threshold value (such as Point B in the figure). Wherein, when the filter attachment impurity mass reaches the maximum amount (ie, the filter screen 11 is almost completely blocked), the fan unit 12 continuously discharges the air in the suction passage 102 through the exhaust passage 1011, so that the suction passage 102 is approximately in a vacuum state. Specifically, as the filter 11 continuously adheres to impurities in the air, the resistance of the air entering the dust suction passage 102 increases, and the drive module 13 increases the amount of current required to achieve the same dust collection effect; When the maximum adhesion value is reached (ie, when the filter 11 approaches a complete blockage), the resistance of the air entering the suction passage 102 reaches a maximum value, and the amount of current required by the drive module 13 also reaches a maximum value. The detected load current value of 14 is the threshold value.

As shown in FIG. 5, the driving module 13 can reduce the dust collecting capacity as the usage time increases, that is, when the filter attached impurity reaches a certain value (point A in the figure), the driving is driven. The load current value corresponding to the module 13 is higher than that of the previous (just at the time of shipment) (C point in the figure), so that the filter 11 may not reach the maximum attached value, and the warning unit 15 alerts the user to replace the filter. The condition of 11 (because the load current value has reached the threshold).

Specifically, in order to avoid digital confusion, the following related component symbols will not be marked. If the vacuum cleaner is shipped from the original factory, the vacuum cleaner draws 1 liter of air, and the required load current is 1, when the filter reaches the maximum attached value. (The filter occlusion rate is 100%), the load current value is 10 (threshold value); as the usage time increases, the suction device draws 1 liter of air, and the required load current value increases to 2, when the load current value is 10 ( At the threshold value, the dust suction device has reached the warning standard, but the filter clogging rate may be only 80%, which causes user trouble. Therefore, in practical applications, it is necessary to set a threshold value, which can be designed according to the use time and the threshold value, so that the dust suction device 1 does not The warning action is incorrect due to the increase in usage time.

In addition, it is worth mentioning that if the current load value when the filter 11 reaches the maximum attachment value is used as the threshold value, the drive module 13 needs to reach the maximum load amount, and the dust suction device 1 will issue a warning to stop the drive module. 13 operations. However, after being used for a period of time, the drive module 13 is easily kept in a high operating condition for a long time, and the service life is shortened. Therefore, in practical applications, the maximum load current value can be measured first, and then the threshold value is set according to a predetermined ratio. Specifically, it is assumed that the current load value of the filter 11 reaches the maximum attached value is 10. In practical applications, the threshold value can be set to 8 (the actual ratio can be set according to requirements), so that the drive module 13 does not have to arrive. The maximum load can drive the warning unit 15 to issue a warning, thereby increasing the service life of the driving module 13.

Please refer to FIG. 6, which is a flowchart of the warning method of the present invention.

In step S61, a detection module is used to detect a driving module and drive one of the fan units.

In step S62, the detecting module determines whether the load current value is greater than or equal to a threshold value.

In step S63, if the load current value is greater than or equal to the threshold, the detection module transmits an alert signal to the alert unit.

In step S64, the alert unit alerts the user to replace the filter.

The detailed description and embodiments of the warning method of the present invention have been described in the foregoing description of the dust-absorbing device with the warning function of the present invention, and will not be repeated here for the sake of brevity.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

1‧‧‧Dust collector

12‧‧‧Fan unit

13‧‧‧Drive Module

131‧‧‧Load current value

14‧‧‧Detection module

141‧‧‧ threshold

142‧‧‧ warning signal

15‧‧‧Warning unit

Claims (12)

The utility model relates to a dust collecting device with a warning function, which comprises: a body, a accommodating space and a dust collecting passage; a filter screen disposed on one side of the dust collecting passage; a fan unit is disposed in the accommodating a driving module is disposed in the accommodating space to drive the fan unit to move the dust suction device through the side of the dust suction passage; a detection module electrically connected to the driving module to detect a load current value when the driving module drives the fan unit; and a warning unit electrically connected to the detecting module; wherein When the detection module detects that the load current value is greater than or equal to a threshold value, the detection module transmits a warning signal to the warning unit to alert the user to replace the filter. The dust collecting device according to claim 1, wherein when the dust collecting device performs a dust collecting operation, the load current value is gradually increased according to an increase in the amount of impurities attached to the filter. The dust suction device of claim 1, wherein when the amount of impurities attached to the filter reaches a maximum attachment value, the air resistance entering the dust suction passage through the filter screen is a maximum value. The dust suction device of claim 3, wherein the load current value of the driving module is when the air resistance through the filter to the dust suction passage is a maximum value For this threshold value. The dust suction device of claim 3, wherein when the air resistance through the filter to the dust suction passage is a maximum value, the load current value of the driving module is based on a predetermined ratio to generate the threshold. value. The dust suction device of claim 1, further comprising at least one exhaust air passage disposed on the other side of the fan unit opposite to the dust suction passage to discharge the fan unit. air. A warning method for a dust suction device is applied to a dust suction device, which comprises the steps of: detecting a driving module by using a detecting module, driving a load of a fan unit; and determining by the detecting module Whether the load current value is greater than or equal to a threshold value; if the load current value is greater than or equal to the threshold value, the detection module transmits a warning signal to a warning unit; and the warning unit alerts the user to replace the one Filter. The warning method of the dust suction device according to claim 7, wherein when the dust suction device performs the dust suction operation, the load current value gradually increases according to an increase in the amount of impurities attached to the filter. The warning method of the dust suction device according to claim 7, wherein when the impurity amount of the filter adheres to the maximum adhesion value, the air resistance entering the dust suction passage through the filter screen is a maximum value. The warning method of the dust suction device according to claim 9, wherein the load current value of the driving module is the threshold value when the air resistance to the dust suction passage through the filter screen is a maximum value. The warning method of the dust suction device according to claim 9 of the patent application, further comprising the following steps: When the air resistance through the filter to the dust suction passage is a maximum value, the load current value of the driving module is based on a predetermined ratio to generate the threshold value. The warning method of the dust suction device of claim 7, further comprising the step of: providing at least one exhaust passage to the other side of the fan unit to discharge the air sucked by the fan unit.