KR20240101277A - Cleaning system including fan filter unit - Google Patents

Abstract

The present invention relates to a cleaning system including a fan filter unit that can economically and easily detect the replacement cycle of the fan filter unit by predicting the life of the filter mounted on the fan filter unit based on power. The included control unit 150 outputs a filter replacement cycle notification to the user according to the speed and power consumption of the motor.

Description

Cleaning system including fan filter unit}

The present invention relates to a cleaning system including a fan filter unit, and more specifically, to a cleaning system that can economically and easily detect the replacement cycle of the fan filter unit by predicting the life of the filter mounted on the fan filter unit based on power. A cleaning system including a fan filter unit.

Patent inventions 001 to 004 are technically related to the present invention, patent invention 001 is an invention for a cleaning system, patent invention 002 is an invention for a wireless three-phase fan filter unit control device, and patent invention 003 is a highly reliable This is an invention for a fan filter unit monitoring and control system equipped with a network, and patented invention 004 is an invention for FFL and FU controller.

The present invention and patented inventions 001 to 004 have similar technical features regarding the control device of the FFU. However, the present invention and patented inventions 001 to 004 have differences in interlocking control for multiple unit controllers and one integrated controller.

KR 10-2008-0054019 A (Publication date June 17, 2008) KR 10-2009-0036805 A (Publication date April 15, 2009) KR 10-20-0376831 B1 (registration date February 15, 2005) KR 10-1531585 B1 (registration date June 19, 2015)

The purpose of the present invention is to provide a cleaning system including a fan filter unit that can economically and easily detect the replacement cycle of the fan filter unit by predicting the life of the filter mounted on the fan filter unit based on power.

The present invention relates to a cleaning system including a fan filter unit to solve the problems of the prior art, and includes at least one fan filter unit (100) installed in a space and supplying air with filtered foreign substances into the space. Including, the fan filter unit 100 includes a housing 110 in which an intake port 111 is formed and the discharge end is opened, and is installed inside the housing 110 to allow air to flow from the intake port 111 to the discharge end. A fan 120 that moves to the side, a motor 130 connected to the fan 120 to drive the fan 120, a control unit 150 that controls the motor 130, and an outlet side of the housing 110. It includes a filter 140 installed in, and the control unit 150 outputs a notification of the replacement cycle of the filter 140 to the user according to the speed and power consumption of the motor 130.

The present invention relates to a cleaning system including a fan filter unit to solve the problems of the prior art, and includes an integrated control unit 200 that transmits a control signal to the control unit 150 included in each of the fan filter units 100. and the control unit 150 included in each of the fan filter units 100 transmits status information of the motor 130 to the integrated control unit 200.

The present invention relates to a cleaning system including a fan filter unit to solve the problems of the prior art, wherein the integrated control unit 200 operates on the control unit 150 of the fan filter unit 100 that has sent a replacement cycle notification. Send a signal to stop.

The present invention relates to a cleaning system including a fan filter unit to solve the problems of the prior art, and the filter 140 is prefabrically coupled to the housing 110.

The present invention relates to a cleaning system including a fan filter unit to solve the problems of the prior art, wherein the intake port 111 is located at the top of the housing 110, and is located in the upper outer area of the housing 110. It is formed including.

The present invention has the effect of economically managing the filter by measuring the life of the filter included in the fan filter unit using the power used in the motor without using a sensor such as a differential pressure sensor.

1 is a perspective view of a fan filter unit included in the cleaning system of the present invention.
Figure 2 is a cross-sectional schematic diagram of a fan filter unit included in the cleaning system of the present invention.
Figure 3 is a schematic diagram of the cleaning system of the present invention.
Figure 4 is a block diagram of the cleaning system of the present invention.
Figure 5 is a cross-sectional schematic diagram of a fan filter unit included in the cleaning system of the present invention, where the intake port of the fan filter unit is formed in the outer area of the housing.
Figure 6 is a schematic diagram of the monitoring part of the cleaning system of the present invention.
Figure 7 is a cross-sectional schematic diagram of a fan filter unit with the filter coupled to the housing using various methods of the present invention.
Figure 8 is a schematic diagram of a fan filter unit in which a damper is coupled to the lower part of the filter of the cleaning system of the present invention.

Hereinafter, the most preferred embodiments of the present invention will be described in detail in order to enable those skilled in the art to easily practice the present invention. The presented configuration can be expanded to objects that have the same purpose and effect. Subconcepts of the presented structure can be viewed as inherent even if they are not directly stated.

(Example 1-1) The present invention relates to a cleaning system, which includes at least one fan filter unit 100 installed in a space and supplying air filtered of foreign substances to the space, wherein the fan filter unit (100) is a housing 110 in which an intake port 111 is formed and the discharge end side is opened, and a fan 120 installed inside the housing 110 to move air from the intake port 111 to the discharge end side. , a motor 130 connected to the fan 120 and driving the fan 120, a control unit 150 that controls the motor 130, and a filter 140 installed on the discharge end of the housing 110. Including, the control unit 150 outputs a notification of the replacement cycle of the filter 140 to the user according to the speed and power consumption of the motor 130.

(Example 1-2) The present invention relates to a cleaning system. In Example 1-1, the control unit 150 determines that the power consumption compared to the speed of the motor 130 is more than a certain standard value compared to the standard value. If so, a notification of the replacement cycle of the filter 140 is sent to the user.

(Example 1-3) The present invention relates to a cleaning system. In Example 1-2, the control unit 150 operates a filter ( 140) replacement cycle notification is sent.

(Example 1-4) The present invention relates to a cleaning system. In Example 1-2, the control unit 150 further includes a storage unit in which user contact information is stored, and determines the speed of the motor 130. If the power consumption compared to the reference value is higher than a certain standard value, a notification of the replacement cycle of the filter 140 is sent to the user using the user contact information stored in the storage unit.

(Example 1-5) The present invention relates to a cleaning system. In Example 1-1, the control unit 150 controls the filter 140 according to the power consumption compared to the speed of the motor 130. A notification of the expected replacement date is output to the user, but the greater the consumption of power compared to the same speed of the motor 130, the closer the expected replacement date of the filter 140 becomes.

(Example 1-6) The present invention relates to a cleaning system. In Example 1-1, the intake port 111 and the discharge end are formed at positions opposite to each other on the housing 110.

A cleaning system including the fan filter unit 100 can be applied to various fields. Representative fields to which the cleaning system according to the present invention is applied may include semiconductor manufacturing or display manufacturing, where trace amounts of dust can adversely affect product quality.

The fan filter unit 100 can be applied to various locations in the space. In this embodiment, the fan filter unit 100 is located at the top of the space, and after suctioning air from the top of the fan filter unit 100, foreign matter is removed. By filtering, clean air can be supplied to the lower side. To this end, the intake port 111 formed in the housing 110 may be located at the top of the housing 110, and the discharge end may be located on the lower side of the housing 110. That is, the intake port 111 and the discharge end may be formed at positions opposite to each other on the housing 110. However, the present invention does not limit the location where the fan filter unit 100 is applied to the upper part of a specific space, and the fan filter unit 100 is located on the side wall of a specific space and filters foreign substances into the space in a horizontal direction. There may be an embodiment of supplying air, or supplying air with foreign substances filtered out from the bottom to the top.

The positions of the intake port 111 and the discharge end formed in the housing 110 may vary depending on the location where the fan filter unit 100 is applied. For example, when the fan filter unit 100 is located on the side of a specific space, the intake port 111 and the discharge end may be formed on both sides of the housing 110, respectively.

The fan 120 itself may be installed inside the housing 110, but is not limited to this, and an embodiment in which the fan 120 is installed at the intake port 111 to supply air into the housing 110 from the outside is also possible. There may be.

The control unit 150 is implemented in a form that includes electronic elements such as a microcontroller unit (MCU), is connected to the motor 130, and further includes a switching element to control the operation of the motor 130. can do. That is, the control unit 150 may be implemented including a type of inverter.

The replacement cycle notification sent by the control unit 150 to the user may be at least one of visual, auditory, and tactile means. At this time, the visual means may be a method of outputting a specific display on the terminal (mobile phone, electronic device, LED) used by the user, and the auditory means may be a method of outputting a specific sound using an audio output device included in the terminal. The tactile means may be a method such as outputting vibration to the terminal.

The user's contact information stored in the storage unit may be at least one of the phone number of the mobile phone used by the user, the user's email address, and the ID of the messenger program used by the user.

When the motor 130 has a rated output and the power used compared to the standard RPM is referred to as the reference power, the more foreign matter gets into the filter 140, the more the used power compared to the standard RPM becomes higher than the reference power. When the power used relative to the reference PRM of the motor 130 reaches a first power higher than the reference power, the control unit 150 may transmit a notification of the replacement cycle of the filter 140 to the user to replace the filter 140. there is.

Even if the power used compared to the standard RPM of the motor 130 does not reach the first power, the control unit 150 can use the trend information of the used power compared to the standard RPM to calculate the date when the used power reaches the first power. The control unit 150 may output a periodically calculated date, that is, a notification of the expected replacement date of the filter 140, to the user. At this time, the greater the power consumption compared to the standard RPM of the motor 130, the closer the expected replacement date of the filter 140 may be based on the calculation date.

(Example 2-1) The present invention relates to a cleaning system. In Example 1-1, an integrated control unit 200 transmits a control signal to the control unit 150 included in each of the fan filter units 100. It includes, and the control unit 150 included in each of the fan filter units 100 transmits status information of the motor 130 to the integrated control unit 200.

(Example 2-2) The present invention relates to a cleaning system, and in Example 2-1,

If the power consumption compared to the speed of the motor 130 is more than a certain standard value, the control unit 150 notifies the integrated control unit 200 of the replacement cycle of the filter 140 and the fan filter unit 100. ), and the integrated control unit 200 provides the user with the ID of the fan filter unit 100 received from the control unit 150 and the filter 140 included in the fan filter unit 100. Sends a replacement cycle notification.

(Example 2-3) The present invention relates to a cleaning system. In Example 2-2, the integrated control unit 200 includes a storage unit in which the user's contact information is stored.

(Example 2-4) The present invention relates to a cleaning system. In Example 2-3, the integrated control unit 200 sets the power consumption compared to the speed of the motor 130 to a certain standard value. If this is the case, a notification of the replacement cycle of the filter 140 is sent to the user using the user contact information stored in the storage unit.

(Example 2-5) The present invention relates to a cleaning system. In Example 2-1, each of the fan filter units 100 and the integrated control unit 200 communicates with the integrated control unit 200. Includes a communications department for.

(Example 2-6) The present invention relates to a cleaning system. In Example 2-2, the status information of each fan filter unit 100 is visually output, and is controlled by the integrated control unit 200. Includes a monitoring unit 200.

(Example 2-7) The present invention relates to a cleaning system. In Example 2-6, the integrated control unit 200 selects one of the fan filter units 100 displayed on the monitoring unit 200, The visual display of the fan filter unit 100 that sent the replacement cycle notification is displayed differently from the visual display of the remaining fan filter units 100.

(Example 2-8) The present invention relates to a cleaning system. In Example 2-7, the integrated control unit 200 selects one of the fan filter units 100 displayed on the monitoring unit 200, The color of the fan filter unit 100 that sent the replacement cycle notification is displayed differently from the color of the remaining fan filter units 100.

The cleaning system according to the present invention can control a plurality of fan filter units 100 from the integrated control unit 200. To this end, the control unit 150 included in each fan filter unit 100 receives a control signal from the integrated control unit 200 and controls the motor 130 included in the fan filter unit 100 to operate the fan 120. can be controlled. To this end, the integrated control unit 200 and the fan filter unit 100 may each include a communication unit including a communication module for transmitting and receiving mutual signals.

When operating the cleaning system, the integrated control unit 200 transmits a control signal to each fan filter unit 100. The control signal transmitted from the integrated control unit 200 to each fan filter unit 100 may include output, that is, RPM information of the motor 130 included in each fan filter unit 100. The control unit 150 included in the fan filter unit 100 receives a control signal from the integrated control unit 200 and then drives the motor 130. Afterwards, the state of the motor 130 is monitored, and the monitored state information of the motor 130 is periodically transmitted to the integrated control unit 200.

As in Embodiment 1 described above, when the consumption of power compared to the reference RPM of the motor 130 reaches the first power, the control unit 150 notifies the integrated control unit 200 of the replacement cycle and Send ID. The ID of the fan filter unit 100 refers to unique information assigned to each fan filter unit 100 and is used to identify each fan filter unit 100.

The monitoring unit 200 is intended to facilitate monitoring by users operating the cleaning system of the present invention, and information on each fan filter unit 100 is visually output. That is, the monitoring unit 200 may be a type of display device.

Information on each fan filter unit 100 that is visually output includes whether the fan filter unit 100 is operating, the operating speed of the motor 130 included in the fan filter unit 100, and the power used by the motor 130. This is information indicating the amount of and that the replacement cycle of the filter 140 has been reached. The notification information of the replacement cycle of the filter 140 output to the monitoring unit 200 is a visual representation of the fan filter unit 100 that is output as having reached the replacement cycle, for example, other fan filter units with remaining colors ( It may be expressed as being output differently from the color of 100), and through this method, the user can more quickly and intuitively identify the fan filter unit 100 that requires replacement of the filter 140.

In this embodiment, the integrated control unit 200 can perform the operation previously performed by the control unit 150, that is, sending a notification to the user that the filter 140 needs to be replaced. Similar to the control unit 150, the integrated control unit 200 transmits a message to the user to replace the filter 140 of a specific fan filter unit 100 and simultaneously provides information about which fan filter unit 100 is. They can be transmitted together, and through this, the user can easily replace the filter 140 of a specific fan filter unit 100.

(Example 3-1) The present invention relates to a cleaning system. In Example 2-1, the integrated control unit 200 sends a replacement cycle notification to the control unit 150 of the fan filter unit 100. Sends a signal to stop operation.

(Example 3-2) The present invention relates to a cleaning system. In Example 3-1, the integrated control unit 200 is configured to install a fan filter located around the fan filter unit 100 that transmits a replacement cycle notification. A control signal that increases output is transmitted to the control unit 150 of the unit 100.

(Example 3-3) The present invention relates to a cleaning system. In Example 3-2, the integrated control unit 200 is configured to install a fan filter located around the fan filter unit 100 that has transmitted a replacement cycle notification. Among the units 100, a control signal is transmitted to the control unit 150 of the first group of fan filter units 100 located closer to each other to operate as a first output, and a second group of fan filters located farther than the first group is transmitted. A control signal is transmitted to the control unit 150 of the unit 100 to operate at a second output lower than the first output.

In the case of the fan filter unit 100 that requires replacement of the filter 140, the filter 140 can be replaced only when the jagging stops. To this end, the integrated control unit 200 transmits a signal to the control unit 150 to stop the operation of the fan filter unit 100, which has been transmitting a replacement cycle notification signal.

When a specific fan filter unit 100 stops operating to replace the filter 140, the output is raised to the control unit 150 of the fan filter unit 100 located around the fan filter unit 100 whose operation has stopped. Send a control signal to do this. This is to allow the surrounding fan filter units 100 to compensate for the output of the stopped fan filter unit 100.

Assuming that the distance of one fan filter unit 100 is 1, the integrated control unit 200 divides the fan filter units 100 into the fan filter units 100 that are 1 apart from the fan filter unit 100 that has stopped operating. A control signal is transmitted to the control unit 150 of one group of fan filter units 100 to operate as a first output, and two groups of fan filter units 100 composed of fan filter units 100 spaced apart by 2 are transmitted. ) can transmit a control signal to the control unit 150 to operate with a second output that is lower than the first output. This does not simply compensate for the output of the fan filter unit 100 whose operation is stopped only in the first group of fan filter units 100, but also the fan filter unit 100 whose operation is stopped in the second group of fan filter units 100. This is to compensate for the output of . This has the effect of preventing the output of one group of fan filter units 100 from being excessively high when the output of only one group of fan filter units 100 is compensated.

The criteria for classifying the fan filter units 100 into groups 1 and 2, which are determined according to the distance from the fan filter unit 100 whose operation is stopped, may be changed depending on the case.

(Example 4-1) The present invention relates to a cleaning system. In Example 1-1, the filter 140 is prefabrically coupled to the housing 110.

(Example 4-2) The present invention relates to a cleaning system. In Example 4-1, the filter 140 is installed in the housing 110 by an interference fitting method, a sliding method, a screw coupling method, or a magnet. It is connected using an attachment method.

(Example 4-3) The present invention relates to a cleaning system. In Example 4-1, the housing 110 includes a protrusion 112 protruding inward on a discharge end side, and the discharge end is located on the lower side of the housing 110, and the filter 140 rests on the protrusion 112.

(Example 4-4) The present invention relates to a cleaning system. In Example 4-1, the filter 140 includes a magnetic material, and the housing 110 is located on the discharge end so that current flows. Including a magnetic electromagnet according to, the filter 140 is coupled to the discharge end of the housing 110 by the electromagnet.

In the fan filter unit 100 whose operation is stopped by transmitting a replacement notification cycle signal, the filter 140 must be replaced. Work on the filter 140 must be performed manually by the operator, and to facilitate the replacement process of the filter 140, the filter 140 may be assembled into the housing 110 in a prefabricated manner.

In this embodiment, the filter 140 may be coupled to the discharge end of the housing 110 in at least one of the pressure fitting method, the sliding method, the screw coupling method, and the attachment method using a magnet.

In the case of the interference fitting method, it is easy to assemble and remove the filter 140 on the housing 110, and the degree of coupling is strong, but there may be a problem that the housing 110 or the filter 140 is damaged. .

In the case of the sliding method, the filter 140 can be easily assembled and removed from the housing 110.

In the case of the screw coupling method, the bonding strength between the housing 110 and the filter 140 is strong and has a robust effect, but there is a problem that a separate tool is required for screw coupling and it takes a relatively long time to assemble.

The method using a magnet has the effect of making it easy to assemble and remove the filter 140 on the housing 110, but there is a problem in that the assembly cost can be relatively increased because a magnet must be provided. In an embodiment of assembling the housing 110 and the filter 140 using magnetism, there may also be an embodiment using an electromagnet. An electromagnet refers to an electrical device that is magnetic when electricity flows and is non-magnetic when electricity is cut off, and may be composed of a wire and a coil wound around the wire. The electromagnet has the effect of allowing the filter 140 to be attached or detached from the housing 110 by simply turning the current on/off, making the replacement of the filter 140 very easy.

In addition to the above method, when the intake port 111 is formed at the top of the housing 110 and the discharge end is located at the bottom of the housing 110, a filter ( The housing 110 and the filter 140 may be combined by placing the 140 on the housing 110 and the filter 140. In this method, the operator does not need to apply strong force to replace the filter 140, and simply removes the placed filter 140 and places the new filter 140 on the protrusion 112 again, so the filter 140 ) has the effect of making the exchange process itself very simple.

(Example 5-1) The present invention relates to a cleaning system. In Example 1-1, the intake port 111 is located at the top of the housing 110, and is located in the upper outer area of the housing 110. It is formed including.

When the intake port 111 is formed only in the middle portion of the upper surface of the housing 110, less air located outside the intake port 111 may be sucked into the housing 110 than air located adjacent to the intake port 111. there is. To prevent this, the intake port 111 itself may be formed at the top of the housing 110, also in the outer area, through which air is sucked in from the entire upper area of the housing 110, thereby forming the fan filter unit 100. Air filtered from foreign substances can be supplied to the space located below.

(Example 6-1) The present invention relates to a cleaning system. In Example 1-1, a plurality of fan filter units 100 are located at the top of the space to supply air filtered with foreign substances to the lower side. Among the fan filter units 100, a damper 300 is coupled to the lower surface of the filter 140 of the outermost fan filter unit 100 to change the direction of air passing through the filter 140. Includes.

(Example 6-2) The present invention relates to a cleaning system. In Example 6-1, the damper 300 is formed to direct the air that has passed through the filter 140 outward.

(Example 6-3) The present invention relates to a cleaning system, and in Example 6-2, it includes a damper moving part that is connected to the damper 300 and changes the direction of the damper 300.

(Example 6-4) The present invention relates to a cleaning system. In Example 6-3, the damper 300 is assembled to the lower surface of the filter 140.

When applying the cleaning system according to the present invention to a space, the fan filter unit 100 must primarily remove dust in the space. If the fan filter unit 100 is located at the top of the space, the fan filter units 100 are arranged two-dimensionally. At this time, among the fan filter units 100, there may be dust that has not been removed due to eddy currents between the outer edge of the outermost fan filter unit 100 and the side wall of the space. In order to eliminate this, a damper 300 is assembled on the lower part of the outermost fan filter unit 100 among the fan filter units 100, that is, on the lower surface of the filter 140, so that the fan filter unit 100 It can be guided to the side wall of the space supplied to the lower side. The damper 300 itself serves to guide the air.

The damper 300 itself can be divided into a form in which the damper is simply assembled on the lower surface of the filter 140, and a form in which a motor is connected to the damper 300.

When the damper 300 is assembled on the lower surface of the filter 140 in a prefabricated manner, the cost to implement the damper 300 is low, so it can be easily implemented, and can be easily attached and detached as needed. In the case of the prefabricated damper 300, the guiding direction itself can be changed, and for this purpose, the damper 300 may include a shaft member that functions as a shaft and a guide blade that is hinged to the shaft member.

When the damper 300 is connected to a motor and configured to move automatically, there is a disadvantage in that the cost to implement the damper 300 is relatively high, but the direction of the damper 300 can be remotely moved depending on the state of space. This has the effect of increasing spatial management efficiency.

100: fan filter unit
110: housing
111: intake port
112: protrusion
120: fan
130: motor
140: filter
200: monitoring unit
300: damper

Claims (5)

At least one fan filter unit 100 installed in the space and supplying air filtered with foreign substances into the space,
The fan filter unit 100,
A housing 110 in which an intake port 111 is formed and the discharge end is opened;
A fan 120 installed inside the housing 110 to move air from the intake port 111 to the discharge end;
A motor 130 connected to the fan 120 to drive the fan 120;
A control unit 150 that controls the motor 130; and
A filter 140 installed on the discharge end of the housing 110;
Including,
The control unit 150 outputs a notification of the replacement cycle of the filter 140 to the user according to the speed and power consumption of the motor 130.
According to paragraph 1,
It includes an integrated control unit 200 that transmits a control signal to the control unit 150 included in each of the fan filter units 100,
The control unit 150 included in each fan filter unit 100,
A cleaning system that transmits status information of the motor (130) to the integrated control unit (200).
According to paragraph 2,
The integrated control unit 200,
A cleaning system that transmits a control signal to stop the operation of the fan filter unit 100 to the control unit 150 of the fan filter unit 100 that has sent a replacement cycle notification.
According to paragraph 1,
The filter 140 is a cleaning system in which the filter 140 is prefabrically coupled to the housing 110.
According to paragraph 1,
The cleaning system wherein the intake port 111 is located at the top of the housing 110 and includes an upper outer area of the housing 110.