KR102530134B1 - Ventilated chair with wireless charging function - Google Patents

Abstract

The present invention relates to a ventilated chair having a wireless charging function, comprising: one or more powertrains connected to at least one of a ventilated seat, a seat, an armrest, and a backrest; a battery generating driving power for the electric unit; a wireless charging receiver for wirelessly charging the battery; And a control unit for controlling the electric unit and the wireless charging receiver.

Description

Ventilated chair with wireless charging function {VENTILATED CHAIR WITH WIRELESS CHARGING FUNCTION}

The present invention relates to a ventilated chair having a wireless charging function.

Various smart chairs are being developed to improve comfort and fatigue when a user sits on a chair for a long time. The smart chair includes components such as a height-adjustable seat, an angle-adjustable backrest, and a height-adjustable armrest. The smart chair may further support a lumber support function for protecting the user's spine and a recliner function for lying down.

In order to improve user convenience, there is a study of electrifying driving elements in smart chairs. A battery may be added to power the motorized mechanism incorporated into the smart chair. However, since the battery must be removed from the smart chair and charged with a separate charger in order to charge the battery coupled to the smart chair, the battery must be removed and reassembled repeatedly when the battery is exhausted. These smart chairs should display the remaining battery capacity on the display so that the user can check the remaining battery capacity. If the battery is completely discharged repeatedly, the performance of the battery deteriorates and its life is shortened.

The present invention aims to address the aforementioned needs and/or problems.

In particular, the present invention provides a ventilated chair having a wireless charging function capable of charging a battery without removing the battery.

The objects of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

A ventilated chair according to an embodiment of the present invention includes one or more powertrains connected to at least one of a ventilated seat on which a ventilated seat is disposed, a seat, an armrest, and a backrest; a battery generating driving power for the electric unit; a wireless charging receiver for wirelessly charging the battery; And a control unit for controlling the electric unit and the wireless charging receiver.

According to the present invention, when the distance between the receiver electrode of the ventilated chair and the transmitter electrode on the desk reaches an optimal distance enabling wireless power transmission and reception, the battery of the ventilated chair wirelessly starts to be charged, and the battery can be charged without removing the battery.

The ventilation chair of the present invention can automatically drive at least one of the ventilation seat, the height of the seat, the angle of the backrest, the height and angle of the footrest, and the electric wheel using battery power.

The ventilation chair of the present invention can autonomously travel toward the desk along the driving route in response to the driving start signal by receiving the driving start signal and the driving route.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1A and 1B are views showing a ventilation chair and desk according to an embodiment of the present invention.
2 is a block diagram showing a system configuration of a ventilation chair.
3 is a cross-sectional view showing a structure of a ventilation seat of a ventilation chair.
4 is a flowchart showing a wireless charging method for a ventilation chair according to an embodiment of the present invention.
5 is a flowchart showing a wireless charging method for a ventilation chair according to another embodiment of the present invention.
6 is a diagram illustrating an example of wirelessly charging a ventilation chair while a user is sitting on the ventilation chair.
7A and 7B are diagrams showing examples of wireless charging of a ventilation chair.
8 is a flowchart showing a wireless charging method for a ventilation chair according to another embodiment of the present invention.
9 to 13b are diagrams illustrating a method for adjusting a distance between a wireless charging transmitter and a wireless charging receiver.
14 and 15 are diagrams showing other examples of electrode arrangement of a wireless charging transmitter and a wireless charging receiver.
16 is a view showing a conference room in which a plurality of ventilated chairs and a large desk are disposed.
17 is a diagram showing a system for controlling auto docking of a plurality of ventilated chairs.

Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. The present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the embodiments to complete the disclosure of the present invention, and to those skilled in the art to which the present invention belongs It is provided to fully inform the scope of the invention, and the invention is only defined by the scope of the claims.

Since the shape, size, ratio, angle, number, etc. disclosed in the drawings for explaining the embodiments of the present invention are exemplary, the present invention is not limited to those shown in the drawings. Like reference numbers designate substantially like elements throughout the specification. In addition, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

When “has”, “includes”, “has”, “is made of”, etc. mentioned in this specification is used, other parts may be added unless 'only' is used. When a component is expressed in the singular, it may be interpreted in the plural unless specifically stated otherwise.

In interpreting the components, even if there is no separate explicit description, it is interpreted as including the error range.

In the case of a description of a positional relationship, for example, when a positional relationship between two components is described as 'on ~', 'on top of ~', 'on the bottom of ~', 'next to', etc., ' One or more other components may be interposed between those components where 'immediately' or 'directly' is not used.

Although first, second, etc. may be used to distinguish the components, the function or structure of these components is not limited to the ordinal number or component name attached to the front of the component.

The following embodiments may be partially or wholly combined or combined with each other, and technically various interlocking and driving operations are possible. Each embodiment may be implemented independently of each other or may be implemented together in an association relationship.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1A and 1B, a ventilation chair 100 according to an embodiment of the present invention includes a seat plate 110 in contact with the user's hip, a backrest 130 pivotably connected to the rear of the seat plate 110, The two armrests 120 connected to both sides of the seat plate 110, the electrode of the wireless charging receiver 122 disposed on at least one of the armrests 120, and the bottom of the seat plate 110 through the main shaft 150. It includes a pedestal 140 connected to it. The ventilation chair 100 may further include a footrest 160 pivotably connected under the seat. Under the pedestal 140, a plurality of wheels 141 may be coupled.

The backrest 130 may include a lumbar support lumbar cushion that protects the spine by correcting the user's posture. Lumbar Support's lumbar cushion can be coupled to a powertrain. In this case, the retraction and pressure of the lumbar cushion can be automatically adjusted.

At least one of the seat plate 110 and the backrest 130 includes a ventilation seat coupled with a blower. The blowing device and the ventilation sheet may be used as commercially available products. The ventilation sheet may be implemented as a ventilation sheet disclosed in Republic of Korea Patent Registration No. 10-2111590 (May 18, 2020) and Republic of Korea Patent Registration No. 10-2111591 (May 18, 2020) previously filed by the present applicant. The blower may be coupled to the ventilation chair 100 or connected to at least one of a heater and a thermoelectric module disposed outside. As shown in FIG. 3 , the heater may be implemented as a hot wire coil disposed on the seat plate 110 and the backrest 130 . Therefore, the ventilation chair 100 can not only blow air into the user's buttocks and back through the ventilation seats of the seat 110 and the backrest 130, but also use a heater and/or a thermoelectric element to blow hot and cold air. can

At least one of the backrest 130, the lumbar support of the backrest 130, the armrests 120, the main shaft 150, and the footrest 160 may be connected to a powertrain. The ventilation chair 100 uses a powertrain to adjust the height of the seat 110, the height of the armrests 120, the angle of the backrest 130, the height and angle of the footrest 160, the advance and retreat of the lumbar support, and the pressure. can be automatically adjusted. Therefore, the ventilation chair of the present invention detects when the user sits on the seat and adjusts the height of the seat 110, the height of the armrests 120, the angle of the backrest 130, and the height of the footrest 160 according to the user's body shape. And the angle, advance and retreat of the lumbar support, and expansion can be automatically adjusted.

At least one of the wheels 141 connected to the pedestal 140 may be implemented as an electric wheel driven by a motor. Therefore, the ventilation chair 100 can be moved automatically even without a user applying force.

In the ventilation chair 100, a massage mechanism may be coupled to one or more of the seat plate 110, the backrest 130, and the footrest 160. The massage mechanism may be coupled to an electric device and driven according to an electrical signal.

The ventilation chair 100 includes a battery for generating power required for driving various electric devices. The battery of the ventilation chair 100 may be charged by receiving power wirelessly transmitted from the desk 200 . As a wireless charging method of the ventilation chair 100, a magnetic induction method and a magnetic resonance method are possible, but a magnetic resonance method having high charging efficiency even at a relatively long distance is preferable. The magnetic resonance method uses an LC resonant circuit installed in the wireless charging transmitter of the desk 200 to transmit a resonance signal having a resonant frequency in the range of several MHz to several tens of MHz to the wireless charging receiver of the ventilation chair 100, so that it is more efficient than the magnetic induction method. Energy can be transferred over long distances with higher efficiency.

Referring to FIG. 2 , the ventilation chair 100 includes a control unit 20, a sensor unit 21, a wireless charging receiver 122, a user interface 23, and first to nth (n is a natural number greater than or equal to 2) electric unit. (24, 25, 26) and battery (27).

The battery 27 may be coupled to any one of the seat 110 , the armrest 120 , and the backrest 130 in a replaceable manner.

The sensor unit 21 includes a pressure sensor and a temperature and humidity sensor disposed on the seat 110 , and a distance sensor disposed on at least one of the armrests 120 and the backrest 130 .

The control unit 20 may be implemented as a micro control unit (MCU). The control unit 20 may determine whether or not the user is seated by receiving an output signal of the pressure sensor. The control unit 20 measures the temperature and humidity of the seat 110 in response to the output signal of the temperature and humidity sensor. The control unit 20 compares the humidity measurement value of the seat 110 with a preset humidity reference value, and when the measured value is greater than the humidity reference value, the control unit 20 drives a blower to blow air into the ventilation sheet of the seat 110, thereby reducing the seat 110. humidity can be reduced. A ventilated seat may be added to the backrest 130. In this case, the controller 20 may control the humidity of the backrest 130 in the same way as the humidity control method of the seat 110 .

The control unit 20 compares the measured temperature value of the seat 110 with preset upper and lower limit reference values of temperature. If the temperature measurement value of the seat 110 is higher than the upper temperature limit reference value, the control unit 20 may increase the temperature of the seat 110 by blowing cold air into the ventilation sheet of the seat 110 by driving the blower and the thermoelectric element. . If the temperature measurement value of the seat 110 is lower than the lower temperature limit reference value, the control unit 20 may increase the temperature of the seat 110 by blowing heat into the ventilation sheet of the seat 110 by driving a blower and a heater. . A ventilated seat may be added to the backrest 130. In this case, the controller 20 may control the temperature of the backrest 130 in the same way as the temperature control method of the seat 110 .

The controller 20 receives the output signal of the distance sensor and measures the distance between the wireless charging receiver 122 of the ventilation chair 100 and the wireless charging transmitter 212 of the desk 200 . Also, the controller 20 measures the remaining amount of the battery 27 . When at least one of the armrests of the ventilation chair 100 is located under the desk 200, the control unit 20 is within the distance between transmitting and receiving electrodes capable of wireless charging of the battery 27 (hereinafter referred to as “optimal distance”). At this time, the battery 27 is charged with a voltage generated according to the resonance signal received from the wireless charging transmitter 212 by enabling the wireless charging receiver 122 .

The optimal distance is defined as a distance range (or a resonance type power transmission range) in which power can be wirelessly transmitted and received between the ventilation chair 100 and the desk 200 . If the distance between the electrode of the wireless charging transmitter 212 and the electrode of the wireless charging receiver 122 is greater than the optimal distance, the battery 27 cannot be charged because power cannot be transmitted and received wirelessly.

The control unit 20 may drive the electric units 24 , 25 , and 26 in response to user data input through the user interface 23 .

The ventilation chair 100 may further include a memory 28 connected to the controller 20 . The memory 28 may store charge/discharge history data of the battery, chair setting data for each user, and the like. The chair setting data includes the height of the seat 110, the displacement and pressure of the lumbar support, the angle of the backrest 13, the height of the armrests 120, the height and angle of the footrest 160, the air volume and temperature of the ventilated seat, etc. It may contain settings. The control unit 20 reads the chair setting data for each user stored in the memory 28, detects when the user sits on the ventilated chair 100, and drives the electric motors 24, 25, and 26 to set values optimized for the user. Alternatively, the components of the Tungpung chair 100 may be automatically adjusted to the set values input by the user.

The electric motors 24, 25 and 26 are driven by power from the battery 27. Motorized units 24 , 25 , 26 drive one or more motorized mechanisms provided in ventilated chair 100 . The transmission mechanism may include a blower of the ventilation sheet, a heater and a thermoelectric element. In addition, the electric mechanism may include a motor connected to at least one of the seat 110, the armrest 120, the backrest 130, the footrest 160, and the electric wheel 141, and one or more gears connected to the motor.

The first transmission unit 24 may drive a blower connected to the ventilation sheet, a heater, and a thermoelectric element under the control of the control unit 20 . The second transmission unit 25 may adjust the height of the seat board 11 under the control of the control unit 20 . The third transmission unit omitted from the drawing may adjust the advance and retreat of the lumbar support and the pressure under the control of the control unit 20. A fourth electric unit omitted from the drawing may adjust the height of the armrests 120 under the control of the control unit 20 . A fifth electric unit omitted from the drawing may adjust the height and angle of the footrest 160 under the control of the control unit 20 . A sixth power unit omitted from the drawing may move the ventilation chair 100 by driving the power wheel 141 under the control of the control unit 20 . The n-th electric unit 26 may drive a massage device installed in the ventilation chair 100 under the control of the control unit 20 .

The user interface 23 is connected to the control unit 20 . The user interface 23 includes a user data input unit and a data output unit. The user data input unit receives user data for setting the ventilation chair or receives user commands for activating various additional functions of the ventilation chair 100 and provides the input to the control unit 20 . The user data input unit may include one or more of a keypad, a touch pad, and a voice recognition unit connected to a microphone. The user data input unit may be implemented as a manipulation panel disposed on one of the armrests 120 or a wired/wireless remote controller.

The data output unit of the user interface 23 may display the current state of the ventilation chair 100, the remaining battery level, temperature, humidity, and the like. The data output unit may include a display implemented as a liquid crystal display (LCD) or an organic light-emitting diode display (OLED) display. In addition, the data output unit may further include a sound output unit connected to the speaker.

The desk 200 includes an upper plate 210 and one or more desk legs 220 connected to a lower surface of the upper plate 210 . The top plate 210 of the desk 200 includes a wireless charging transmission unit 212 and a control unit omitted from the drawings. The controller of the desk 200 measures the distance between the wireless charging receiver 122 of the ventilation chair 100 and the wireless charging transmitter 212 of the desk 200 by receiving the output signal of the distance sensor, 212) and the wireless charging receiver 122 can drive the wireless charging transmitter 212 when the distance is an optimal distance. Therefore, the desk 200 drives the wireless charging transmitter 212 only when the distance between the wireless charging transmitter 212 and the wireless charging receiver 122 is an optimal distance, thereby avoiding unnecessary power consumption.

The distance sensor may be disposed on the top plate 210 of the desk 200 . In this case, the distance sensor in the ventilation chair 100 may be omitted.

3 is a cross-sectional view showing the ventilation seat structure of the ventilation chair 100.

Referring to FIG. 3 , ventilation seats may be disposed on the seat 110 and the backrest 130 of the ventilation chair 100 .

The ventilation seat of the seat 110 includes a cushion foam 111. The cushion foam 111 includes an air passage connected between a lower surface and an upper surface of the cushion foam 111 . The lower surface of the cushion foam 111 includes an air passage inlet connected to the duct 40 . The upper surface of the cushion foam 111 includes a plurality of outlets connected to the air passage. A pressure sensor 112, a temperature and humidity sensor 113, and a heat wire 114 may be stacked on the upper surface of the cushion foam 111. The seat 110 is covered by a fabric or leather cover 115 in which a plurality of ventilation holes are formed.

The ventilated seat of the backrest 130 includes a cushion foam 131. The cushion foam 111 includes an air flow path. The lower surface of the cushion foam 111 is formed with an inlet of an air flow path connected to the duct 40 . The duct 40 connects the air inlet of the seat 110 and the air inlet of the backrest 130. Blower 42 may be connected to the inlet of duct 40 . The blower 42 blows air to the seat 110 and the backrest 130 through the duct 40 using the blades of the impeller rotating under the control of the control unit 20 . The thermoelectric element 44 is driven under the control of the control unit 20 to generate heat and endothermic reactions to generate cool air and warm air. The controller 20 may use an endothermic reaction of the thermoelectric element 44 when cooling air needs to be blown, and drive the hot wire 114 when warm air needs to be blown.

4 is a flowchart showing a wireless charging method of a ventilation chair 100 according to an embodiment of the present invention.

Referring to FIG. 4 , the user may set optimal conditions (reference values) of the ventilation chair 100 through the user interface 23 (S41). For example, while the user is sitting on the ventilation chair 100, the height of the seat 110, the height of the armrest 120, the height and angle of the footrest 160, the angle of the backrest 130, temperature and humidity It is possible to input the operation setting of the ventilated sheet according to the

The controller 20 may determine a state in which the user is sitting on the ventilation chair 100 (seating state) according to the pressure sensor on the seat 110 (S42). The control unit 20 receives the output signal of the temperature and humidity sensor, measures the temperature and humidity from the buttocks of the user sitting on the ventilation chair 100, and compares the measured values with optimum conditions in real time. The control unit 20 drives the transmission units 24, 25, and 26 to operate each of the basic components 110, 120, 130, and 160 of the ventilation chair 100 based on the comparison result of the real-time measurement value and the optimum condition. The optimum condition is adjusted, and the ventilation sheet is driven to the optimum condition (S43). Meanwhile, the user may manually process step S43. For example, in step S43, the user can sit on the ventilation chair 100 and drive the ventilation seat through the user interface 23 or adjust each of the basic components 110, 120, 130, and 160 as desired. .

When the control unit 20 receives the output signal of the pressure sensor and determines that the user is not seated in the ventilation chair 100, the remaining battery capacity of the ventilation chair 100 can be measured and the battery 27 can be wirelessly charged. there is. At this time, the distance between the wireless charging transmitter 212 and the wireless charging receiver 122, that is, the distance between TX and RX is measured in real time by a distance sensor, and only when the distance is the optimal distance, the wireless charging receiver 122 is It is enabled and wireless charging proceeds (S44 and S45). At this time, the control unit of the desk 200 may drive the wireless charging transmission unit 212 only at an optimal distance.

If the measured distance between the wireless charging transmitter 212 and the wireless charging receiver 122 is greater than the optimal distance, the battery 27 is not charged. At this time, the wireless charging transmitter 212 and the wireless transmission receiver 122 are not driven. Therefore, if the distance between the electrode of the wireless charging transmitter 212 and the electrode of the wireless charging receiver 122 is out of the optimal distance, power consumption does not occur from the wireless charging transmitter 212 and the battery 27 is not charged.

When the measured distance between the wireless charging transmitter 212 and the wireless charging receiver 122 is greater than the optimal distance, the ventilated chair 100 is operated manually by the user or by autonomous driving according to the driving of the electric wheel of the ventilated chair 100. It may be moved toward the desk 200 (S46). When the distance between the wireless charging transmitter 212 and the wireless charging receiver 122 narrows to an optimal distance, the wireless charging transmitter 212 generates a resonance signal to wirelessly charge the battery 27 (S44 and S45).

5 is a flowchart showing a wireless charging method of a ventilation chair 100 according to another embodiment of the present invention. 6 is a diagram illustrating an example of wirelessly charging a ventilation chair while a user is sitting on the ventilation chair.

5 and 6, the battery 27 of the ventilation chair 100 is wirelessly charged when the distance between the wireless charging transmitter 212 and the wireless charging receiver 122 is an optimal distance regardless of whether the user is seated or not. It can be (S51, S52 and S54). If the distance between the wireless charging transmitter 212 and the wireless charging receiver 122 is greater than the optimal distance, wireless charging is not performed. When the ventilation chair 100 is moved manually or automatically (autonomous driving) and the distance between the wireless charging transmitter 212 and the wireless charging receiver 122 is narrowed to an optimal distance, the battery 27 may be wirelessly charged (S51). , S52, S53 and S54).

The wireless charging receiver 122 may be disposed on both sides or one side of the ventilation chair 100. When the wireless charging receiver 122 is disposed on both armrests 120 of the ventilation chair 100, when both armrests 120 are at an optimal distance from the wireless charging transmitter 121 disposed on the desk 200 The battery 27 of the ventilation chair 100 can be charged, and as shown in FIGS. 7A and 7B , the electrode of the wireless charging receiver 212 formed on either armrest 120 is wirelessly charged. The battery 27 of the ventilation chair 100 may be charged even when the electrode of the transmission unit 121 is close to the optimum distance. The electrode of the wireless charging transmitter 212 is preferably formed widely on the top plate 210 of the desk 200 so that the wireless charging position is not limited to a narrow range. For example, the electrode of the wireless charging transmitter 212 has a length L greater than the distance between both armrests 120 of the ventilation chair 100 and the armrests 120, as shown in FIGS. 7A and 7B. It can be formed as a wide single electrode having a width (W) equal to or greater than the length of .

As shown in FIG. 4 , the battery 27 of the ventilation chair 100 may be charged in a non-seating state in which the user is not sitting on the ventilation chair 100 . In this embodiment, as shown in FIG. 8 , the battery 27 of the ventilation chair 100 may be charged only when the user moves away from the ventilation chair 100 for a long time.

8 is a flowchart showing a wireless charging method for a ventilation chair according to another embodiment of the present invention.

Referring to FIG. 8 , the controller 20 may receive an output signal of the pressure sensor and determine whether the user is sitting on the ventilation chair 100 (S81).

In step S82, the user can sit on the ventilation chair 100 and drive the ventilation seat through the user interface 23 or adjust each of the basic components 110, 120, 130, and 160 as desired. In step S82, when the control unit 20 detects the user's sitting state and determines that the user is sitting on the ventilated chair 100, the electric motors 24, 25, and 26 are driven to move the ventilated seat and the ventilated chair 100. The basic components 110, 120, 130, and 160 may be driven with preset values.

The controller 20 may measure the remaining battery capacity of the ventilation chair 100 and wirelessly charge the battery 27 when it is not seated. At this time, the distance between the wireless charging transmitter 212 and the wireless charging receiver 122 is the optimal distance, and after a predetermined waiting time has elapsed, a resonance signal is generated from the wireless charging transmitter 212 to wirelessly charge the battery 27. This proceeds (S83, S84, S85). Here, the predetermined waiting time may be set in consideration of a situation in which the user is temporarily away, and may be set to, for example, between 1 minute and 20 minutes, but is not limited thereto. The control unit 20 increases the counter value from the start of the unoccupied state when the output signal of the pressure sensor is inverted, and enables the wireless charging receiver 122 when the counter value reaches a predetermined waiting time to perform wireless charging. can be initiated.

If the measured distance between the wireless charging transmitter 212 and the wireless charging receiver 122 is greater than the optimal distance, the battery 27 of the ventilation chair 100 is not driven because the wireless charging transmitter 212 and the wireless charging receiver 122 are not driven. ) is not charged. When the ventilation chair 100 is manually or automatically moved and the distance between the wireless charging transmitter 212 and the wireless charging receiver 122 is narrowed to an optimal distance, wireless charging of the ventilation chair 100 becomes possible (S86).

The battery 27 of the ventilation chair 100 can be charged only when the distance between the electrode of the wireless charging transmitter 212 and the electrode of the wireless charging receiver 122 is narrowed to within an optimal distance. To this end, as shown in FIGS. 9 to 13B , the height of the ventilation chair 100 may be manually or automatically adjusted.

Referring to FIG. 9, when the ventilation chair 100 is under the desk 200, the height of the seat 110 of the ventilation chair 100 is manually or automatically adjusted so that the wireless charging transmitter 212 and the wireless charging receiver ( 122) may be set as an optimal distance. In the case of manual adjustment, the user may adjust the height of the seat plate 110 using a height control lever of the seat plate 110 (not shown). In the case of automatic adjustment, the control unit 20 of the ventilation chair 100 receives the output signal of the distance sensor and measures the distance between the wireless charging transmitter 212 and the wireless charging receiver 122, until the optimal distance is reached. The height of the seat plate 110 can be adjusted using a powertrain.

In another embodiment of the present invention, as shown in FIG. 10, the distance between the wireless charging transmitter 212 and the wireless charging receiver 122 is set to an optimal distance by adjusting the armrest heights h1 and h2 of the ventilation chair 100. can In this case, the ventilation chair 100 may further include guide rails 170 connected to the armrests 120 as shown in FIG. 11 .

Referring to FIG. 11 , the guide rail 170 includes a rail 171 and a slider 172 slidably connected to the rail 171 . The rail 171 is fixed to the seat board 110 or the backrest 130. The slider 172 is fixed to the armrest 120. In the case of manual adjustment, when the user lifts or lowers the armrest 120, the armrest 120 moves up and down along the guide rail in conjunction with the user's force. In the case of automatic adjustment, the control unit 20 may automatically adjust the height of the armrest 120 by driving a power transmission unit connected to the armrest 120 .

Referring to FIGS. 12A to 13B , the guide rails 170 may be disposed on both sides of the backrest 130 or the seat board 110 . The armrests 120 are fixed to the slider 172 of the guide rail 170. The armrests 120 can move up and down along the guide rail 170 in conjunction with the user's force or motor to set the distance between the wireless charging transmitter 212 and the wireless charging receiver 122 to an optimal distance.

As described above, the electrodes for wireless charging may be disposed on the lower surface of the upper plate of the desk 200 and the upper surface of the armrest of the ventilation chair 100 opposite to the lower surface, but are not limited thereto. For example, as shown in FIGS. 14 and 15, the electrodes of the wireless charging transmitter 214 are disposed on the bottom and side surfaces of the desk top plate 210, and the electrodes of the wireless charging receiver 132 are ventilated chair 100. It can be arranged vertically long on the backrest 130 of the. Wireless charging of the battery 27 proceeds when the electrodes of the wireless charging transmitter 214 and the electrodes of the wireless charging receiver 132 face each other at an optimal distance as shown in FIG. 15 .

The ventilated chair of the present invention includes an electric wheel 141 and is capable of autonomous driving. Therefore, as shown in FIG. 16 , in a conference room in which a plurality of ventilated chairs 100 are disposed, the ventilated chairs 100 can be docked to the desk 200 through autonomous driving and wirelessly charged. To this end, the desk 200 sets a travel path for each of the ventilation chairs 100 based on images captured by one or more cameras 33, and the ventilation chairs 100 are ventilated to prevent interference while driving. It may include a controller that determines the running order of the chairs 100 .

17 is a diagram showing a system for controlling auto docking of a plurality of ventilated chairs. In FIG. 17, the same reference numerals are assigned to components substantially the same as those shown in FIG. 2, and detailed descriptions thereof will be omitted.

Referring to FIG. 17 , the desk 200 includes a control unit 30, a wireless charging transmitter 212, a memory 31, a communication module 32, a camera 33, a power unit 34, and a power supply unit 35. includes A plurality of wireless charging transmitters 212 may be disposed on the desk 200 so that a plurality of ventilation chairs 100 may be wirelessly charged at the same time.

The ventilation chair 100 includes a control unit 20, a sensor unit 21, a wireless charging receiver 122, a user interface 23, a plurality of electric units 24, 25, 26, a battery 27, and a communication module. (29).

The communication module 32 forms a wireless communication link with the communication module 29 of the ventilated chairs 100 . The communication modules 29 and 32 may support WiFi communication. Therefore, the control unit 30 of the desk 200 receives the distance measurement value between the wireless charging transmitter 212 and the wireless charging receiver 122 from each of the ventilation chairs 100, and when the optimal distance is reached, the wireless charging transmitter ( 212) can be driven.

The camera 33 captures an image of the meeting room and provides it to the control unit 30 . The controller 30 recognizes each of the ventilation chairs 100 from the conference room image received from the camera 33 using a preset image analysis algorithm. The control unit 30 determines the location of the wireless charging transmitter 212 closest to the current location of each of the ventilation chairs 100 detected from the conference room image. The control unit 30 derives a travel path of the shortest distance for each of the ventilation chairs 100 to reach the wireless charging transmission unit 212, and transmits a signal including travel distance information to each of the ventilation chairs 100 through the communication module 32. It is transmitted to the ventilation chairs 100 through. In addition, the control unit 30 determines the driving order of the ventilation chairs 100 and transmits a driving start signal to the ventilation chairs 100 at a time difference.

Each control unit 20 of the ventilation chairs 100 transmits the measured distance between the wireless charging transmitter 212 and the wireless charging receiver 122 measured by the distance sensor to the desk 200 through the communication module 29 do. Each of the ventilation chairs 100 drives the electric wheel 141 under the control of the controller 20 to autonomously travel along its own driving route in response to the driving start signal received from the desk 200 to the desk 200. move When the ventilation chairs 100 are close to the desk 200 and the distance between the electrode of the wireless charging transmitter 212 and the electrode of the wireless charging receiver 122 reaches an optimal distance, wireless charging starts and the battery 27 is charged. is charged

Since the ventilation chairs 100 sequentially travel according to the driving start signal received from the desk and the driving route, they can be docked to the wireless charging transmitter 212 of the desk 200 without interference.

The electric unit 34 of the desk 200 can automatically drive the height of the desk 200 and the opening and closing of an outlet connected to the power supply unit 35 under the control of the control unit 30 . The power supply unit 35 is connected to a commercial AC power source through a power cable and delivers the commercial AC power source to an outlet. In addition, the power supply unit 35 may rectify commercial AC power, convert it into driving power of the wireless charging transmission unit 212, and supply it to the wireless charging transmission unit 212. The wireless charging transmitter 212 drives a resonance circuit when driving power from the power supply unit 35 is input under the control of the control unit 30 to wirelessly transmit a resonance signal to the wireless charging receiver 122 of the ventilation chairs 100. send.

Since the content of the specification described in the problem to be solved, the problem solution, and the effect above does not specify the essential features of the claim, the scope of the claim is not limited by the matters described in the content of the specification.

Although the embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and may be variously modified and implemented without departing from the technical spirit of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The protection scope of the present invention should be construed according to the claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

20, 30: control unit 21: sensor unit
23: user interface 24, 25, 26, 34: transmission part
27: battery 28, 31: memory
29, 32: communication module 33: camera
35: power unit 100: ventilation chair
110: seat 120: armrest
122, 132: wireless charging receiver 130: backrest
140: support 150: main shaft
160: scaffold 170: guide rail
200: desk 212, 214: wireless charging transmitter

Claims (6)

a seat plate in contact with the user's buttocks and on which a pressure sensor, a temperature and humidity sensor, and a first ventilated seat are disposed;
a footrest rotatably connected under the seat;
two armrests in contact with the user's arms;
a backrest in contact with the user's back and on which a lumbar support lumbar cushion and a second ventilated seat are disposed;
a distance sensor disposed on at least one of the armrests and the backrest;
a pedestal connected to the seat through a main shaft;
a duct connecting an air inlet of the first ventilation sheet and an air inlet of the second ventilation sheet;
a blower connected to the inlet of the duct to blow air to the first and second ventilation sheets;
a thermoelectric element disposed at the inlet of the duct adjacent to the blower;
heaters disposed on each of the seat and the backrest;
a first electric motor driving the blower, the heater, and the thermoelectric element;
a second transmission unit for adjusting the height of the seat plate;
A third transmission unit for adjusting the advance and retreat of the lumbar support and the pressure;
a fourth transmission unit for adjusting the height of the armrest;
A fifth transmission unit for adjusting the height and angle of the scaffold;
a battery generating power necessary for driving the first to fifth power units;
a wireless charging receiver disposed on one of the armrests and the backrest to wirelessly charge the battery; and
A control unit for controlling the first to fifth power units and the wireless charging receiver,
The control unit,
Receive an output signal of the pressure sensor and determine whether or not the user is seated;
In response to the output signal of the temperature and humidity sensor, the temperature and humidity of the seat are measured, and when the measured humidity value is greater than a preset humidity reference value, the blower is driven to blow air to the first and second ventilation sheets,
blowing cool air to the first and second ventilation sheets by driving the blower and the thermoelectric element when a temperature measurement value measured from an output sensor of the temperature and humidity sensor is higher than a preset upper temperature reference value;
blowing heat to the first and second ventilation sheets by driving the blower and the heater when the temperature measurement value is lower than a preset lower limit reference value;
Receiving the output signal of the distance sensor and facing the wireless charging receiving unit, but measuring the distance between the wireless charging transmitting unit and the wireless charging receiving unit, measuring the remaining amount of the battery,
The ventilation chair, characterized in that the wireless charging receiving unit is enabled when the distance between the wireless charging receiving unit and the wireless charging receiving unit is within an optimal distance for wireless charging.
According to claim 1,
one or more power wheels connected to the pedestal;
a massage device disposed on at least one of the seat, the backrest, and the footrest;
a sixth transmission unit driving the electric wheel under the control of the control unit; and
The ventilation chair further comprises a seventh transmission unit for driving the massage mechanism under the control of the controller.
According to claim 2,
The wireless charging transmitter is disposed on a desk,
Ventilation chair, characterized in that the wireless charging receiving unit and the wireless charging transmitting unit are driven only when the distance between the wireless charging transmitter and the wireless charging receiver is within the optimal distance.
delete According to claim 3,
The control unit,
The ventilation chair receives the output signal of the distance sensor, measures the distance between the wireless charging transmission unit and the wireless charging reception unit, and moves the ventilation chair toward the desk by driving the sixth power unit.
In the ventilation chair that receives the driving start signal and the driving route from the desk,
The ventilation chair,
a seat plate in contact with the user's buttocks and on which a pressure sensor, a temperature and humidity sensor, and a first ventilated seat are disposed;
a footrest rotatably connected under the seat;
two armrests in contact with the user's arms;
a backrest in contact with the user's back and on which a lumbar support lumbar cushion and a second ventilated seat are disposed;
a distance sensor disposed on at least one of the armrests and the backrest;
a pedestal connected to the seat through a main shaft;
one or more power wheels connected to the pedestal;
a duct connecting an air inlet of the first ventilation sheet and an air inlet of the second ventilation sheet;
a blower connected to the inlet of the duct to blow air to the first and second ventilation sheets;
a thermoelectric element disposed at the inlet of the duct adjacent to the blower;
heaters disposed on each of the seat and the backrest;
a first electric motor driving the blower, the heater, and the thermoelectric element;
a second transmission unit for adjusting the height of the seat plate;
A third transmission unit for adjusting the advance and retreat of the lumbar support and the pressure;
a fourth transmission unit for adjusting the height of the armrest;
A fifth transmission unit for adjusting the height and angle of the scaffold;
a sixth transmission unit for driving the electric wheel;
a battery generating power required to drive the first to sixth power units;
a wireless charging receiver disposed on one of the armrests and the backrest to wirelessly charge the battery;
a communication module receiving the driving start signal and the driving route; and
A control unit for controlling the first to sixth power units and the wireless charging receiver,
The control unit,
Receive an output signal of the pressure sensor and determine whether or not the user is seated;
In response to the output signal of the temperature and humidity sensor, the temperature and humidity of the seat are measured, and when the measured humidity value is greater than a preset humidity reference value, the blower is driven to blow air to the first and second ventilation sheets,
blowing cool air to the first and second ventilation sheets by driving the blower and the thermoelectric element when a temperature measurement value measured from an output sensor of the temperature and humidity sensor is higher than a preset upper temperature reference value;
blowing heat to the first and second ventilation sheets by driving the blower and the heater when the temperature measurement value is lower than a preset lower limit reference value;
Receiving the output signal of the distance sensor and facing the wireless charging receiving unit, but measuring the distance between the wireless charging transmitting unit and the wireless charging receiving unit, measuring the remaining amount of the battery,
enabling the wireless charging receiver when a distance between the wireless charging receiver and the wireless charging receiver is within an optimal distance for wireless charging;
The ventilation chair according to claim 1 , wherein when the driving start signal is received, the sixth power unit is controlled to drive the power wheel to move the ventilation chair along the travel path.

Images