Garment care device with sensing unit

Abstract

The present invention relates to a garment care device (100A) comprising: a water tank (102) for containing water; a steam generator (104) in fluid communication with the water tank to generate steam; and a base plate (108) defining a generally flat surface (109) including a plurality of steam outlets (110) in fluid communication with the steam generator. A control device (120) controls the flow of steam exiting the steam outlets. The control device employs a first state causing steam to exit the steam outlets and a second state causing steam not to exit the steam outlets. The garment care device further comprises: a button (124) adapted to be actuated by a user; a first sensing unit (128) for detecting whether the user is holding the garment care device; and a processing unit connected to the button and the first sensing unit. The processing unit sets the control device to the first state if the following primary conditions are met: the button has been continuously pressed by the user for at least a first duration, and after the first duration, the first sensing unit detects that the user is holding the garment care device.

Description

Technical Field

[0001] This invention relates to a garment care device, and more particularly to controlling the delivery of steam from the garment care device.

[0002] This invention can be used in the field of clothing care. Background Technology

[0003] Steam irons are known to remove wrinkles from clothing in a manner similar to garment steamers. Garment steamers allow users to vertically steam hanging garments without the need for an ironing board.

[0004] Traditional steam irons or pressurized steam generators include a so-called "steam lock" feature, which allows the product to continuously generate steam in a manner similar to garment steamers. The steam lock feature is user-selectable, allowing users to switch between continuous steam processing and non-continuous steam processing modes depending on, for example, whether the device is intended for steaming hanging garments or for ironing garments on an ironing board.

[0005] The disadvantage of this traditional steam iron / pressurized steam generator is that the steam lock needs to be turned on or off by the user, for example, whenever the clothes are adjusted or the steamed clothes are changed to clothes to be steamed.

[0006] If the user opens the steam lock, for example, while adjusting or changing clothes, allowing steam to flow continuously throughout the ironing process, there is a risk of wasting energy and water, and steam may seep into the boiler of the equipment.

[0007] DE 20 2006 001242 U1 discloses a garment care system comprising: a steam generator having a steam outlet; at least one garment care handheld device having a steam inlet arranged for connection to the steam outlet; an opening for releasing steam; and a steam control unit arranged for controlling a valve for controlling steam release.

[0008] EP 3 447 187 A1 discloses a garment care device comprising: a sensor for generating an output signal characterizing movement of the garment care device; and a control unit coupled to the sensor. The control unit is adapted to identify and compare characteristics of the output signal with characteristics of a predetermined displacement pattern, and to adjust at least one operating parameter of the garment care device based on the comparison result between the characteristics of the output signal and the characteristics of the predetermined displacement pattern. Summary of the Invention

[0009] The purpose of this invention is to provide a garment care device that avoids or mitigates the above-mentioned problems.

[0010] This invention is defined by the independent claims. The dependent claims define advantageous embodiments.

[0011] Therefore, the garment care device according to the present invention includes:

[0012] - A water tank, used to hold water;

[0013] - A steam generator, in fluid communication with a water tank, is used to generate steam;

[0014] - A base plate defining a generally flat surface, the generally flat surface including a plurality of steam outlets in fluid communication with a steam generator;

[0015] - A control device for controlling the steam flow leaving the steam outlet, the control device being adapted to employ a first state that causes the steam to leave the steam outlet and a second state that causes the steam not to leave the steam outlet;

[0016] - A button designed to be actuated by the user of the garment care device;

[0017] - First sensing unit, used to detect whether the user is holding the garment care device;

[0018] - A processing unit, connected to the button and the first sensing unit, is adapted to set the control device to a first state if the following main conditions are met:

[0019] - The button has been pressed continuously by the user for at least the first duration; and

[0020] - After the first duration, the first sensing unit detects that the user is holding the garment care device.

[0021] Therefore, in order to adopt the first state and allow the steam to exit the steam outlet accordingly, the user only needs to actuate the button for the first duration and then continue to hold the garment care device.

[0022] In this way, users do not need to continuously actuate (e.g., press) buttons in order to operate garment care equipment in continuous steam mode.

[0023] Furthermore, when the user does not hold or stops holding the garment care device, the main conditions will not be met or will no longer be met, and therefore, steam will not leave the steam outlet. This improves safety, especially before steam treatment. It also minimizes or prevents wasted steam and energy when the user is not holding the garment care device, for example, when the user is adjusting clothes or replacing clothes to be steamed with steam-treated clothes. Preferably, the control device includes a valve arranged between the steam generator and the steam outlet. This valve provides an effective and responsive way to select between a first state and a second state.

[0024] Alternatively or additionally, the control device includes a pump arranged between the water tank and the steam generator. This pump provides an efficient and easily implemented method for selecting between a first state and a second state.

[0025] Preferably, the garment care device further includes a second sensing unit connected to the processing unit for measuring the angular position of the overall flat surface relative to the horizontal surface. In this case, the main conditions also include the following additional conditions:

[0026] - After the first duration, the second sensing unit detects that the angular position is greater than a given angular threshold.

[0027] Users may prefer continuous steam treatment of suspended fabrics or garments in the first state, but such continuous steam treatment may be inappropriate when using garment care equipment to iron clothes on a horizontal surface of an ironing board. These user preferences are determined by key conditions, including the additional requirement that the second sensing unit detects an angular position greater than a given angular threshold.

[0028] The given angle threshold is at least 20 degrees relative to the horizontal, preferably in the range of 20°C to 40°C, for example, 30°C.

[0029] This range of given angle thresholds reflects the first state being triggered by an inclined orientation away from the horizontal, and can also help prevent unintentional triggering of the first state due to the base plate being positioned (e.g., seated) on an inclined base / support.

[0030] Preferably, when the angular position is greater than a given angular threshold for at least a given minimum duration, the additional condition that the second sensing unit detects that the angular position is greater than the given angular threshold is satisfied after the first duration.

[0031] A given minimum duration can help ensure the stability of the measured angular position, and can be in the range of 100 milliseconds to 500 milliseconds, such as 200 milliseconds.

[0032] Preferably, the garment care device includes a third sensing unit for measuring the movement of the garment care device. In this case, the main conditions also include the following additional conditions:

[0033] - After the first duration, the third sensing unit detects a movement with a first value greater than the first movement threshold.

[0034] This could help improve the responsiveness of garment care devices, thereby enhancing the user experience. This is because it is assumed (for example, once) the user is moving the garment care device, steam is allowed to exit through the steam outlet.

[0035] Preferably, the processing unit is adapted to set the control device to a second state if the first sensing unit detects at a specific time that the user is no longer holding the garment care device.

[0036] In this document, the term "specific time" is intended to refer to the time during which the user does not hold or is no longer holding the garment care device. Therefore, when the user no longer holds the garment care device, the steam treatment provided when the control device is in the first state is stopped or at least temporarily suspended.

[0037] Preferably, the processing unit is adapted to reset the control device to the first state if the following secondary conditions are met:

[0038] - The first sensing unit detects that the user holds the garment care device again during a second duration starting from a specific time.

[0039] This allows steam treatment to resume after a temporary interruption caused by the user no longer holding the garment care device.

[0040] The second duration can be, for example, in the range of 10 to 30 seconds, such as 15 seconds.

[0041] When the garment care device includes a second sensing unit, the secondary conditions preferably also include the following:

[0042] - During the second duration, the second sensing unit detects that the angular position of the overall flat surface compared to the horizontal surface is greater than a given angle threshold.

[0043] Therefore, tilting the base plate allows a given angle threshold to be exceeded, which can be conveniently used as a secondary condition among secondary conditions for allowing the resumption of continuous steam processing after a temporary suspension.

[0044] Alternatively or additionally, when the garment care device includes a third sensing unit, the secondary condition preferably also includes the following:

[0045] During the second duration, the third sensing unit detects a movement with a second value greater than the second motion threshold.

[0046] Therefore, moving at least a portion of the garment care equipment causes the second movement threshold to be exceeded, which can be conveniently used as a secondary condition for allowing the resumption of continuous steam treatment after a temporary interruption.

[0047] Preferably, the processing unit is adapted to maintain the control device in the first state as long as the third sensing unit detects that the movement of the garment care device is higher than the third motion threshold.

[0048] The third movement threshold may be the same as or different from the first and second movement thresholds. In a non-limiting example, the third movement threshold is lower than the first and / or second movement thresholds. Therefore, the third movement threshold can explain, for example, the relatively small movement associated with directing steam to a portion of the fabric to remove stubborn wrinkles.

[0049] Preferably, the processing unit is adapted to set the control device to a second state once the button is actuated by the user.

[0050] In this way, while the control device is in the first state, the steam treatment is stopped by adopting the second state as a result of the user actuating the button.

[0051] Preferably, the first duration is in the range of 1 to 5 seconds, such as 2 seconds. This first duration helps prevent the control device from unintentionally adopting the first state, while minimizing the inconvenience and discomfort to the user caused by the relatively prolonged time period during which the button has to be actuated (e.g., pressed).

[0052] Preferably, the first sensing unit includes a capacitive sensor configured to detect when a user touches the garment care device. Alternative sensor types, such as optical sensors, ultrasonic sensors, etc., may also be considered for the first sensing unit.

[0053] According to another aspect, a method for controlling steam generation in a garment care device is provided, the garment care device comprising:

[0054] - A water tank, used to hold water;

[0055] - A steam generator, in fluid communication with a water tank, is used to generate steam;

[0056] - A base plate defining a generally flat surface, the generally flat surface including a plurality of steam outlets in fluid communication with a steam generator;

[0057] - A control device for controlling the steam flow leaving the steam outlet, the control device being adapted to employ a first state that causes the steam to leave the steam outlet and a second state that causes the steam not to leave the steam outlet;

[0058] - A button designed to be actuated by the user of the garment care device;

[0059] - First sensing unit, used to detect whether the user is holding the garment care device;

[0060] The method includes the following steps: if the following main conditions are met, the control device is set to a first state:

[0061] - The button has been pressed continuously by the user for at least the first duration; and

[0062] - After the first duration, the first sensing unit detects that the user is holding the garment care device.

[0063] A computer program product is also provided, which includes instruction code that, when executed by the processing unit of the garment care device, causes the garment care device to perform the above-described method.

[0064] The embodiments described herein with respect to garment care devices can be applied to methods and computer program products, and the embodiments described herein with respect to methods and computer program products (e.g., control logic for such computer program products) can be applied to garment care devices.

[0065] The following provides a detailed description of the invention and other aspects. Attached Figure Description

[0066] Specific aspects of the invention will now be described with reference to the embodiments described below and considered in conjunction with the accompanying drawings, wherein the same parts or sub-steps are designated in the same manner:

[0067] Figure 1 A garment care device based on the first example is described.

[0068] Figure 2 A garment care device according to the second example is described.

[0069] Figure 3 A garment care device based on the third example is described.

[0070] Figure 4 The garment care device according to the fourth example is described.

[0071] Figure 5 The manual unit of the garment care device according to the fifth example is depicted, and

[0072] Figure 6 A flowchart is provided for an exemplary method of controlling steam generation in a garment care device. Detailed Implementation

[0073] Figure 1 A garment care device 100A according to a first example is depicted. The garment care device 100A includes a water tank 102 for containing water. A steam generator 104 for generating steam is in fluid communication with the water tank 102.

[0074] exist Figure 1 In the depicted non-limiting example, water is pumped from a water tank 102 to a steam generator 104 via a pump 106. Steam is generated in the steam generator 104 using the water pumped by the pump 106. For this purpose, the steam generator 104 includes a heating element (not visible), such as a resistance heating element, which is arranged to heat the water therein to generate steam.

[0075] The garment care device 100A also includes a base plate 108. The base plate 108 has, or can be considered as defining, a surface for treating fabrics.

[0076] like Figure 1 As shown, the base plate 108 defines a plurality of steam outlets 110. The steam outlets 110 are in fluid communication with the steam generator 104, as explained in more detail below. The fluid communication between the steam generator 104 and the steam outlets 110 allows steam generated in the steam generator 104 to be supplied to a fabric (not visible) adjacent to and in some cases in contact with the base plate 108.

[0077] The surface of the base plate 108 is a generally flat surface 109. The term "generally flat" means that the surface 109 is planar, but includes discontinuities, specifically due to the presence of the steam outlet 110.

[0078] Figure 1 The exemplary garment care device 100A shown includes a base 112 and a manual unit 114. The base 112 includes a water tank 102, a steam generator 104, and a pump 106. As shown, the manual unit 114 includes a base plate 108.

[0079] The hose cable 116 includes a steam pipe (not shown) for conveying steam from the steam generator 104 to the steam outlet 110. Preferably, the hose cable 116 is flexible to facilitate the movement of the manual unit 114 while maintaining a supply of steam from the steam generator 104 to the steam outlet 110.

[0080] exist Figure 1 In the non-limiting example shown, steam from steam generator 104 is received in steam chamber 118, which is included in manual unit 114. Steam outlet 110 is in fluid communication with steam chamber 118. Therefore, steam in steam chamber 118 is delivered to the fabric to be treated through steam outlet 110.

[0081] For example, steam outlet 110 can be arranged in a way that distributes steam to different parts of the fabric.

[0082] Although Figure 1 A garment care device 100A with six steam outlets is shown, but this is for illustrative purposes only, and any suitable alternative number of steam outlets 110 can be considered, such as two, three, four, five, seven, eight, nine, ten, eleven, twelve or more.

[0083] In addition, the garment care device 100A does not need to include Figure 1 The components of the base 112 and manual unit 114 are shown, and are referred to below. Figure 3 and Figure 4 A more detailed description of the examples of the alternative designs is provided.

[0084] More generally, the garment care device 100A includes a control device 120 configured to control the steam flow exiting the steam outlet 110. The control device 120 employs a first state and a second state. In the first state, the control device 120 permits steam to exit the steam outlet 110.

[0085] In the second state, the control device 120 does not allow steam to leave the steam outlet 110. This can be achieved, for example, by preventing fluid communication between the steam generator 104 and the steam outlet 110 in the second state, thereby preventing steam from leaving the steam outlet 110.

[0086] Since the control device 120 controls whether steam is allowed to leave the steam outlet 110, the control device 120 can be alternatively referred to as a "steam controller".

[0087] The control device 120 can be implemented in any suitable manner. Figure 1 In the non-limiting example shown, the control device 120 includes or is partially defined by a valve 122, which is arranged between the steam generator 104 and the steam outlet 110.

[0088] Assuming that valve 122 can be controlled in response to the satisfaction of certain key conditions, valve 122 may have any suitable design, as described in more detail below. For example, valve 122 may comprise, or take the form of, an electronic valve or a solenoid valve.

[0089] exist Figure 1In the illustrated exemplary garment care device 100A, a first state is adopted by opening valve 122 to allow steam generated in steam generator 104 to reach and exit steam outlet 110. A second state is adopted by closing valve 122 to prevent steam generated in steam generator 104 from passing through and exiting steam outlet 110.

[0090] exist Figure 1 In the example shown, the control device 120, including valve 122, is included in the base 112. However, this should not be considered limiting, and at least a portion of the control device 120 (e.g., valve 122) may be located elsewhere in the garment care device 100A, such as in the manual unit 114.

[0091] More generally, the garment care device 100A includes a button 124. The button 124 can be actuated by the user of the garment care device 100A.

[0092] Any suitable design for button 124 can be considered, such as a push button, a slider button, etc.

[0093] Preferably, the garment care device 100A includes a handle 126 for a user to grip in order to assist the user in moving the base plate 108 relative to the fabric to be treated. Thus, the handle 126 can be included in the manual unit 114.

[0094] When the handle 126 is included in the garment care device 100A, the button 124 is preferably arranged close to the handle 126 such that the button 124 can be actuated when the user is gripping the handle 126, for example by the hand and / or fingers of the hand gripping the handle 126.

[0095] In addition to button 124, garment care device 100A also includes a first sensing unit 128 configured to detect whether a user is holding garment care device 100A.

[0096] The first sensing unit 128 can have any suitable design, or can be of any suitable type capable of detecting whether a user is holding at least a portion of the garment care device 100A. For example, the first sensing unit 128 includes or is defined by a sensor, such as a touch sensor configured to detect a user's holding of at least a portion of the garment care device 100A.

[0097] A capacitive sensor can be a particularly suitable touch sensor for detecting a user's grip on the garment care device 100A.

[0098] Preferably, the first sensing unit 128 is disposed on or near the handle 126, such as... Figure 1As shown. This positioning of the first sensing unit 128 means that when a user touches and preferably grips the handle 126, the first sensing unit 128 detects a grip on at least a portion of the garment care device 100A.

[0099] exist Figure 1 In the non-limiting example shown, the first sensing unit 128 is arranged on the underside of the handle 126 such that a grip is detected when the user's hand and / or fingers reach the underside while gripping the handle 126.

[0100] Alternatively, the first sensing unit 128 is arranged to detect contact with the upper side of the handle 126, for example. See below for reference. Figure 5 An example of this will be provided.

[0101] More generally, the garment care device 100A includes a processing unit 130 connected to a button 124 and a first sensing unit 128.

[0102] The processing unit 130 is configured to set the control device 120 to a first state if the following main conditions are met: the button 124 has been continuously pressed by the user for at least a first duration; and after the first duration, the first sensing unit 128 detects that the user is holding the garment care device 100A.

[0103] Preferably, the first duration is in the range of 1 to 5 seconds, such as 2 seconds. Such a first duration helps prevent the control device 120 from unintentionally adopting the first state, while minimizing the inconvenience and discomfort to the user caused by the relatively prolonged time period during which the button 124 has to be actuated (e.g., pressed).

[0104] Therefore, in order to adopt the first state and correspondingly allow steam to leave the steam outlet 110, the user only needs to actuate the button 124 for the first duration, and then continue to hold at least a portion of the garment care device 100A.

[0105] In this way, in order to operate the garment care device 100A in continuous steam treatment mode, the user does not need to continuously actuate (e.g., press) the button 124.

[0106] Furthermore, when the user does not hold at least a portion of the garment care device 100A, the main conditions are not met or are no longer met, and steam therefore does not leave the steam outlet 110. In this way, when the user does not hold at least a portion of the garment care device 100A, for example, when the user is adjusting clothes or replacing clothes to be steamed with steam-treated clothes, the waste of steam and energy is minimized or the waste of steam or energy is prevented.

[0107] exist Figure 1In the case of the exemplary garment care device 100A shown, the processing unit 130 is configured to control the valve 122 (e.g., including a solenoid valve or electromagnetic valve) of the control device 120 to open based on the satisfaction of the above-mentioned main conditions, so as to allow steam to be delivered from the steam generator 104 to the steam outlet 110.

[0108] The processing unit 130 is also configured to close the valve 122 of the control device 120 so as to prevent steam from being transferred from the steam generator 104 to the steam outlet 110 when at least one of the aforementioned main conditions is not met.

[0109] Controlling the steam flow by sending a control signal from the processing unit 130 to the valve 122 of the control device 120 provides an efficient way to switch between the first and second states. Therefore, control of the steam leaving the steam outlet 110 can respond relatively quickly to user input received via (at least) the button 124 and the first sensing unit 128.

[0110] Processing unit 130 can be implemented in various ways using software and / or hardware to perform a variety of desired functions. A processor is one example of processing unit 130 employing one or more microprocessors, which can be programmed using software (e.g., microcode) to perform functions. However, processing unit 130 can be implemented with or without a processor, and can also be implemented as a combination of dedicated hardware for performing some functions and a processor (e.g., one or more programmable microprocessors and associated circuitry) for performing other functions.

[0111] Examples of controller components that can be employed in various embodiments of the present invention include (but are not limited to) conventional microprocessors, application-specific integrated circuits (ASICs), and field-programmable gate arrays (FPGAs).

[0112] In some examples, processing unit 130 is associated with one or more storage media, such as volatile computer memory and non-volatile computer memory, such as RAM, PROM, EPROM, and EEPROM. The storage media can be encoded with one or more programs that, when executed on one or more processors and / or controllers, perform the desired functions. Various storage media may be fixed within processing unit 130 or may be transferable, such that one or more programs stored thereon can be loaded into processing unit 130.

[0113] exist Figure 1 In the exemplary garment care device 100A shown, the processing unit 130 is included in the base 112, although other suitable locations for the processing unit 130 may be considered, such as in the manual unit 114. See below for reference. Figure 3and Figure 4 The latter example will be described in more detail.

[0114] When the processing unit 130 is included in the base 112, the button 124 and the first sensing unit 128 can be connected to the processing unit 130 in any suitable manner (e.g., via wiring (not shown) included in the flexible cable 116).

[0115] Figure 2 A garment care device 100B according to a second example is depicted, wherein the control device 120 includes a pump 106 arranged between a water tank 102 and a steam generator 104.

[0116] exist Figure 2 In the non-limiting example shown, steam generator 104 is included in manual unit 114. In this case, steam chamber 118 is included in steam generator 104, or may define steam generator 104. Steam outlet 110 is in fluid communication with steam chamber 118 of steam generator 104. The fluid communication between steam generator 104 and steam outlet 110 allows steam generated in steam generator 104 to be supplied to fabric adjacent to and in some cases in contact with base plate 108, as previously discussed. Figure 1 As described.

[0117] The processing unit 130 is configured to control the pump 106 of the control device 120 to pump water from the water tank 102 to the steam generator 104 to generate steam, which is allowed to reach from the steam generator 104 and through the steam outlet 110, based on the above-mentioned main conditions being met.

[0118] When at least one of the aforementioned primary conditions is not met, the processing unit 130 is configured to control the pump 106 of the control device 120 to either stop pumping water from the water tank 102 or stop pumping water to the steam generator 104. This prevents the generation of steam, thus preventing steam from leaving the steam outlet 110.

[0119] In other words, steam is permitted to leave steam outlet 110 or otherwise based on controlling steam generation by regulating the pumping of water from water tank 102 to steam generator 104. This provides an efficient and easily achievable way to switch between the first and second states.

[0120] exist Figure 2 In the non-limiting example shown, the water tank 102, the pump 106 of the control device 120, and the processing unit 130 are all included in the base 112, and the steam generator 104 is included in the manual unit 114.

[0121] In this case, the flexible cable 116 correspondingly includes a water pipe (not visible) for transporting water from the water tank 102 in the base 112 to the steam generator 104 in the manual unit 114.

[0122] Figure 1 and Figure 2 Both describe the architecture of a pressurized steam generator (PSG). Figure 1 In the depicted device, a steam generator 104 (in other words, a boiler) is included in a base 112. Figure 2 In the illustrated device, the boiler 104 is not included in the base 112. However, in two of these examples, the water tank 102 is included in the base 112. However, as briefly mentioned above, these designs should not be considered limiting.

[0123] Figure 3 A garment care device 100C according to the third example is depicted, the garment care device 100C being with Figure 2 The depicted garment care device 100B has some similarities, wherein the control device 120 includes a pump 106 arranged between a water tank 102 and a steam generator 104.

[0124] exist Figure 3 In the non-limiting example shown, all components of the garment care device 100C are included in the manual unit 114. Thus, together with the base plate 108, button 124, and first sensing unit 128, the water tank 102, the steam generator 104 including or defined by the steam chamber 118, the control device 120 (in this case including or in the form of a pump 106), and the processing unit 130 are included in the manual unit 114.

[0125] Figure 3 The device shown corresponds to a steam iron and is sometimes referred to as a "DTS". Because the water tank 102 is integrated into the manual unit 114 rather than into the base, a smaller water tank 102 may be necessary; however, the garment care device 100C may benefit from portability and space-saving advantages due to the elimination of such a base. Due to the proximity of the water tank 102 to the steam generator 104, the responsiveness in delivering steam in response to user input received via (at least) the button 124 and the first sensing unit 128 may also be relatively fast.

[0126] More generally, the processing unit 130 is preferably adapted to set the control device 120 to a second state once the button 124 is actuated by the user, and it also completely exits the "continuous steam processing".

[0127] In this way, while the garment care devices 100A, 100B, and 100C are in the first state, the steam treatment is stopped by adopting the second state as a result of the user actuating button 124.

[0128] After adopting the first state, steam processing begins; in other words, continuous steam processing occurs, and the user should not actuate button 124 unless they wish to stop the steam processing. However, in this non-limiting example, the user can leave the first state at any time by (re)acting button 124. For example, such re-actuation can be achieved by a relatively short (e.g., less than 2 seconds) actuation of button 124, or alternatively, by a relatively long (e.g., longer than 2 seconds) actuation of button 124.

[0129] Unintentional or accidental actuation of button 124 is considered unlikely or rare and is not considered to significantly affect user safety. This is at least in part because the primary condition also includes the requirement that, after button 124 has been continuously pressed by the user for a first duration, the first sensing unit 128 detects that the user is holding the garment care device 100A, 100B, 100C.

[0130] The placement of button 124 (e.g., relative to handle 126) also helps ensure that a user is unlikely to accidentally actuate button 124 during steam treatment when control device 120 is in the first state. However, such accidental actuation will not pose a safety issue if the unintentional or accidental actuation of button 124 causes garment care devices 100A, 100B, 100C to switch from the first state that allows steam to leave steam outlet 110 to the second state that prevents steam from leaving steam outlet 110.

[0131] If the first sensing unit 128 detects at a specific time that the user is no longer holding the garment care devices 100A, 100B, 100C (in other words, at least a portion of the garment care devices 100A, 100B, 100C), then the processing unit 130 is preferably adapted to set the control device 120 to a second state. This can be, for example, an alternative or supplement to setting the control device 120 to adopt the second state once the button 124 is actuated by the user.

[0132] In this context, the term "specific time" means the time during which a user does not hold or is no longer holding at least a portion (e.g., handle 126) of the garment care device 100A, 100B, 100C.

[0133] Therefore, when the user no longer holds at least a portion of the garment care devices 100A, 100B, 100C, the steam treatment provided when the control device 120 is in the first state, such as continuous steam treatment, is stopped or at least temporarily suspended.

[0134] Preferably, the processing unit 130 is adapted to reset the control device 120 to the first state if the following secondary condition is met: the first sensing unit 128 detects that the user holds the clothing care devices 100A, 100B, 100C again during a second duration starting from that specific time.

[0135] This means that steam treatment will be resumed after at least a portion of the users who no longer hold the garment care devices 100A, 100B, and 100C have stopped the steam treatment.

[0136] The second duration can be, for example, in the range of 10 to 30 seconds, such as 15 seconds.

[0137] If the user does not hold the garment care devices 100A, 100B, and 100C again during the second duration, the garment care devices 100A, 100B, and 100C (specifically, their processing unit 130) can return to a first mode in which a primary condition must be met in order to adopt the first state.

[0138] In other words, garment care devices 100A, 100B, and 100C exit the second / steam treatment mode, for example, the vertical steam treatment mode, which is referred to below. Figure 4 A more detailed description will follow; and if the user does not hold the garment care devices 100A, 100B, or 100C again during the second duration, the first mode is entered. In this case, in order to adopt the first state by first actuating button 124 during at least the first duration, the user must again meet the main condition. This is referenced below. Figure 6 This will be described.

[0139] Figure 4 A garment care device 100D according to a fourth example is depicted, wherein the garment care device 100D further includes a second sensing unit 132 connected to a processing unit 130. Note that this also applies to... Figure 1 and Figure 2 An embodiment. The second sensing unit 132 is configured to measure the angular position A1 of the overall flat surface 109 of the base plate 108 compared to the horizontal surface HS.

[0140] In other words, the second sensing unit 132 measures the angle A1 of the longitudinal axis LA of the base plate 108 relative to the horizontal.

[0141] In this non-limiting example, the main condition also includes the following additional condition: after the first duration, the second sensing unit 132 detects that the angular position A1 is greater than a given angular threshold A2.

[0142] The garment care device 100D (specifically, the manual unit 114 of the garment care device 100D) can preferably be used in different orientations.

[0143] For example, the horizontal orientation of the soleplate 108 can be used to iron fabrics on the horizontal surface HS of, for example, an ironing board that is horizontally oriented. However, the orientation of the soleplate 108 can be changed to allow the garment care device 100D to be used for steam treatment of, for example, fabrics or garments hanging from a hanger. The latter can mean that the soleplate 108 (specifically, the longitudinal axis LA of the soleplate 108) becomes non-horizontally oriented, for example, at 90° to the horizontal, or more generally at an angle between horizontal and vertical. For example, an orientation detected as vertical is based on a tilt angle threshold of 30° compared to the horizontal, and any angle detected below 30° is considered horizontal, and vice versa.

[0144] Depending on whether the garment care device 100D is used for ironing (e.g., horizontally) or for steam treatment of suspended fabrics or garments (e.g., vertically), the user prefers different steam treatment controls. For users using it for steam treatment of suspended fabrics or garments, continuous steam treatment in the first state is preferred. For this reason, the main condition in this example includes the additional requirement that the second sensing unit 132 detects an angular position A1 greater than a given angular threshold A2.

[0145] The additional condition is that steam is allowed to be released only when the base plate is in a vertical orientation after the user enters the so-called vertical steam mode by pressing and holding the button.

[0146] Note that this differs from some conventional solutions, where continuous steam processing is stopped for safety reasons when the base plate exceeds the equivalent of a given angle threshold A2. Because of other key conditions that must be met for control unit 120 to assume its first state, this safety consideration can be disregarded in this example.

[0147] The given angle threshold A2 is at least 20 degrees relative to the horizontal, preferably in the range of 20°C to 40°C, for example, 30°C.

[0148] This range of the given angle threshold A2 reflects the triggering of the first state by an inclined orientation away from the horizontal, and can also help prevent unintentional triggering of the first state due to the base plate 108 being positioned (e.g., seated) on an inclined base / support.

[0149] The second sensing unit 132 may include any suitable sensor for measuring the angular position A1 (in other words, the tilt angle) of the base plate 108. For example, the second sensing unit 132 may include an accelerometer, such as a microelectromechanical system (MEMS) accelerometer.

[0150] Such an accelerometer (e.g., a MEMS accelerometer) allows for the measurement of acceleration along the vertical and horizontal axes to derive the tilt angle A1 of the base plate 108.

[0151] Angle measurements are preferably static measurements because there is no comparison with previous measurements.

[0152] Preferably, when the angular position A1 is greater than a given angular threshold A2 for at least a given minimum duration, the additional condition that the second sensing unit 132 detects that the angular position A1 is greater than the given angular threshold A2 is satisfied after the first duration.

[0153] A given minimum duration helps ensure the stability of the measured angular position A1. The given minimum duration is preferably in the range of 100 ms to 500 ms, such as 200 ms.

[0154] For example, when the second sensing unit 132 includes a MEMS accelerometer, and given an angle threshold A2 of at least 20 degrees relative to the horizontal, preferably in the range of 20°C to 40°C, preferably at 30°C, and a given minimum duration in the range of 100ms to 500ms, preferably 200ms, the stability of the detected signal can be ensured. This is because sufficient sampling, for example, more than 20 samples, can be maintained during such a duration.

[0155] As described above, in some examples, the processing unit 130 is adapted to: reset the control device 120 to the first state if the secondary condition that the first sensing unit 128 detects during the second duration that the user has again grasped at least a portion of the garment care device 100D is met. This allows continuous steam treatment to be resumed. When the garment care device 100D includes the second sensing unit 132, the secondary condition preferably also includes: during the second duration, the second sensing unit 132 detects that the angular position A1 of the overall flat surface 109 of the base plate 108 compared to the horizontal surface HS is greater than a given angle threshold A2.

[0156] Therefore, the fully tilted base plate 108 allows exceeding a given angle threshold A2 to be conveniently used as a secondary condition among secondary conditions, which allow continuous steam processing to be resumed via a first state of the control device 120 after a temporary suspension or interruption.

[0157] In this respect, it should be noted that the design in which the second sensing unit 132 is included in the garment care device 100D can also be applied to Figure 1 and Figure 2The base 112 depicted is included in the design of garment care devices 100A and 100B. For example, and similar to... Figure 4 The second sensing unit 132 of the garment care device 100D shown can be included in the manual unit 114 of the garment care devices 100A and 100B.

[0158] Similar considerations can be applied to the third sensing unit 134 described below, since the third sensing unit 134 can also be incorporated into Figure 1 and Figure 2 In any of the designs depicted, for example, by including the third sensing unit 134 in the manual unit 114 of the garment care devices 100A, 100B.

[0159] The garment care device 100D preferably includes a third sensing unit 134 configured to measure movement of the garment care device 100D, in other words, movement of at least a portion of the garment care device 100D. Figure 4 In the non-limiting example shown, the third sensing unit 134 is included in the manual unit 114.

[0160] Although Figure 4 The illustrated example includes a third sensing unit 134 in addition to the second sensing unit 132, but this is not intended to be limiting. In other examples, a third sensing unit 134 may be included as an alternative to the second sensing unit 132, or the second sensing unit 132 may be included as an alternative to the third sensing unit 134.

[0161] When the third sensing unit 134 is included in the garment care device 100D, the main condition also includes the following additional condition: after a first duration, the third sensing unit 134 detects a movement having a first value greater than a first motion threshold.

[0162] This can help improve the responsiveness of the garment care device 100D and thus enhance the user experience of the garment care device 100D by assuming (for example, whenever) the user is moving at least a portion of the garment care device 100D, steam exits from the steam outlet 110.

[0163] Motion detection performed by the third sensing unit 134 can be a dynamic measurement in which each sample is compared with the previous sample, and motion is detected by determining whether the change between samples is above a certain threshold.

[0164] The third sensing unit 134 may include any suitable motion sensor for sensing movement of at least a portion of the garment care device 100D. For example, the third sensing unit 134 may include an accelerometer, such as a microelectromechanical system (MEMS) accelerometer.

[0165] In the example in which the garment care device 100D includes a second sensing unit 132 and a third sensing unit 134, the accelerometer may be the same as or different from the accelerometer described above with respect to the second sensing unit 132.

[0166] When such an accelerometer is included in the third sensing unit 134, the movement detected by the third sensing unit 134 is acceleration, with the additional condition that the acceleration detected by the third sensing unit 134 is greater than a first acceleration threshold; the latter corresponds to the first movement threshold mentioned above.

[0167] In a non-limiting example, movement is detected by measuring acceleration along any one of the three orthogonal axes. Therefore, the detection algorithm examines acceleration values ​​along the X, Y, and Z axes respectively. An acceleration-related condition is satisfied if the acceleration or change in acceleration along any of these axes exceeds a first acceleration threshold or if the first acceleration change threshold is exceeded for a sufficient duration.

[0168] For example, if the acceleration exceeds a first acceleration threshold within the range of 5 milligrams to 20 milligrams (preferably 10 milligrams) for at least 50 milliseconds to 500 milliseconds (preferably 10 milligrams), then an additional acceleration-related condition is met. Note that these milligram values ​​can be converted to SI units; note that 1 milligram = 0.001 g; and 1 g = 9.81 m / s². 2 .

[0169] When the third sensing unit 134 and the second sensing unit 132 are respectively included in the garment care device 100D, the additional conditions related to acceleration and the additional conditions related to angle orientation can also be used in combination.

[0170] Therefore, assuming the angular position A1 is greater than a given angular threshold A2 (e.g., greater than 30°) and assuming the movement has a first value greater than a first movement threshold, the control device 120 is controlled by the processing unit 130 to adopt a first state. In this way, movement detection is used under primary conditions to assist in ensuring that steam treatment in the first state is not triggered when at least a portion of the garment care device 100D (e.g., manual unit 114) is stationary but docked in the base / support at an angle such that the angular position A1 exceeds the given angular threshold A2. In this regard, the docking of the manual unit 114 can be, for example, an angle exceeding 40°, such as 43°.

[0171] As described above, the processing unit 130 may be adapted to reset the control device 120 to the first state if the secondary condition that the user is holding at least a portion of the garment care device 100D again is met during the second duration, as detected by the first sensing unit 128. This allows continuous steam treatment to be resumed. When the garment care device 100D includes a third sensing unit 134, the secondary condition preferably further includes the condition that the third sensing unit 134 detects movement having a second value greater than a second movement threshold during the second duration.

[0172] Therefore, fully moving at least a portion of the garment care device 100D such that the second movement threshold is exceeded can be conveniently used as a secondary condition that allows continuous steam processing to be resumed via the first state of the control device 120 after a temporary suspension or interruption.

[0173] In a non-restrictive example, the first move threshold is the same as the second move threshold, such that a sufficient amount of the first or second move may exceed both move thresholds.

[0174] In other examples, the second movement threshold is greater than the first movement threshold, such that the requirement to resume steam treatment in the second / steam treatment mode after an interruption is triggered by a more significant movement of at least a portion of the garment care device 100D.

[0175] More generally, the processing unit 130 is preferably adapted to maintain the control device 120 in the first state as long as the third sensing unit 134 detects that the movement of the garment care device 100D (in other words, at least a portion of the garment care device 100D) is above the third movement threshold.

[0176] The third movement threshold may be, for example, lower than the first movement threshold and / or the second movement threshold. This means that even when only a relatively small movement is detected in at least a portion of the garment care device 100D, the control device 120 in the first state can continue to release steam. This can assist the garment care device 100D in continuing to supply steam continuously, for example, when the user holds the manual unit 114 in a position on the fabric to remove stubborn wrinkles.

[0177] Figure 5 A perspective view of the manual unit 114 of garment care devices 100A, 100B, 100C, and 100D is provided. In this non-limiting example, a first sensing unit 128, a second sensing unit 132, and a third sensing unit 134 are assembled into the handle 126 of the manual unit 114.

[0178] More generally, by positioning one or more of the sensing units 128, 132, 134 in the handle 126, the risk of such components being damaged, for example, due to heat from the steam generator 104 / steam chamber 118 or due to water leaking from the water tank 102, can be reduced.

[0179] A printed circuit board assembly 136 is mounted in a handle 126 within a first housing portion 138. The printed circuit board assembly 136 includes sensors (e.g., the aforementioned accelerometer) for a second sensing unit 132 and a third sensing unit 134.

[0180] The printed circuit board assembly 136 also includes electronic components incorporated within the first sensing unit 128. In this example, the first sensing unit 128 includes a capacitive sensor. A capacitive flexible element 140 of the capacitive sensor is constructed within the top cover 137 of the handle 126. The capacitive flexible element 140 is disposed on top of a second housing portion 142, which, together with the first housing portion 138, surrounds the printed circuit board assembly 136. An elastomer or rubber material 144 is also included to fill air gaps that might otherwise exist within the top cover 137 of the handle 126.

[0181] Figure 6 A flowchart is provided for a non-limiting exemplary method for controlling steam generation in a garment care device 100D. Figure 6 The decision block 200 of the control logic shown corresponds to whether the button 124 is actuated (e.g., pressed) for a duration longer than a first duration D1 (e.g., 2 seconds).

[0182] If the answer to decision box 200 is "no", then alternative modes, such as manual, automatic, and speed, can be provided to the user, for example, in box 202. These options can be provided (e.g., cyclically) via a suitable user interface. The user interface may include an indicator, such as a light-emitting diode (LED), that indicates the alternative mode selected by the user. This is represented in box 204.

[0183] For example, speed mode is indicated by continuously lit LEDs, automatic mode by flashing or blinking LEDs, and manual mode by unlit LEDs. Other suitable ways of indicating the modes of the garment care device 100D could be considered.

[0184] If the answer to decision box 200 is "yes," this can optionally be indicated via the user interface in box 206. This provides the user with feedback that they have actuated button 124 for more than the first duration D1. For example, an LED may flash or blink and / or a buzzer may provide an audible indication, such as a beeping sound.

[0185] The decision box 208 corresponds to whether a user is detected holding the garment care device 100D. This utilizes a first sensing unit 128, which may include a touch sensor, such as a capacitive touch sensor as previously described.

[0186] If the answer to decision box 208 is "no", the control logic proceeds to decision box 210. Decision box 210 corresponds to whether it has been detected that the user has not been holding the clothing care device 100D for more than the second duration D2.

[0187] If the answer to decision box 210 is "yes", the control logic returns to decision box 200. This means that if the user wants to return to decision box 208, the user is required to actuate button 124 for a duration longer than the first duration.

[0188] If the answer to decision box 210 is "no", the control logic returns to decision box 208.

[0189] If the answer to decision box 208 is "yes", the control logic proceeds to decision box 212. Decision box 212 corresponds to whether the angular position A1 of the overall flat surface 109 of the base plate 108 exceeds a given angular threshold A2 (e.g., 30°). This utilizes a second sensing unit 132, which may include an accelerometer as previously described.

[0190] If the answer to decision box 212 is "no", the control logic returns to decision box 212 via the loop.

[0191] If the answer to decision box 212 is "yes", the control logic proceeds to decision box 214. Decision box 214 corresponds to whether the movement of at least a portion of the garment care device 100D has a first value MV1 greater than a first movement threshold MV1_TH. This utilizes a third sensing unit 134, which may include an accelerometer, for example, the same accelerometer included in the second sensing unit 132, as previously described.

[0192] Alternatively, the determination is whether the movement of at least a portion of the garment care device 100D has a second value MV2 greater than the second motion threshold MV2_TH, as previously described regarding the secondary conditions for resuming steam treatment after a temporary interruption.

[0193] If the answer to decision box 214 is "no", the control logic returns to decision box 214 via the loop.

[0194] If the answer to decision box 214 is "yes", the control logic proceeds to box 216. Box 216 corresponds to the control device 120 adopting a first state that causes steam to leave steam outlet 110.

[0195] The determination box 218 corresponds to whether the user is holding the garment care device 100D while the steam is leaving the steam outlet 110, as detected by the first sensing unit 128.

[0196] If the answer to decision block 218 is "yes", the control logic returns to block 216 via the loop, and steam continues to leave steam outlet 110.

[0197] If the answer to decision block 218 is "no", the control logic proceeds to block 220. Block 220 corresponds to the control device 120 adopting a second state that prevents steam from leaving steam outlet 110. For example, this could be to stop steam from leaving steam outlet 110.

[0198] The control logic then proceeds to decision block 208 and either resumes the suspended steam processing by responding "yes" to decision blocks 208, 212, and 214, or returns to decision block 200 by responding "no" and "yes" to decision blocks 208 and 210, respectively. In the latter scenario, if the user wants the control device 120 to (re)adopt the first state so that steam leaves the steam outlet 110, the user is again required to actuate (e.g., press) button 124 for more than the first duration D1.

[0199] The embodiments described above are illustrative only and are not intended to limit the technical methods of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the scope of protection of the claims. Specifically, although the present invention has been described based on clothing care devices, the present invention can be applied to any household appliance with a steam generator. In the claims, the word "comprising" does not exclude other elements or steps, and the indefinite article "a" or "an" does not exclude a plurality. Any reference numerals in the claims should not be construed as limiting the scope.

Claims

1. A garment care device (100A, 100B, 100C, 100D), comprising: Water tank (102) is used to hold water; A steam generator (104) is in fluid communication with the water tank for generating steam; A base plate (108) defines a generally flat surface (109) including a plurality of steam outlets (110) in fluid communication with the steam generator; A control device (120) is used to control the flow of steam leaving the steam outlet, the control device being adapted to employ a first state that causes steam to leave the steam outlet and a second state that causes steam not to leave the steam outlet; Button (124), adapted to be actuated by the user of the garment care device; The first sensing unit (128) is used to detect whether the user is holding the garment care device; A processing unit (130), connected to the button and the first sensing unit, is adapted to set the control device to the first state if the following main conditions are met: The button has been pressed continuously by the user for at least a first duration (D1), and After the first duration (D1), the first sensing unit detects that the user is holding the garment care device.

2. The garment care device (100A, 100B, 100C, 100D) according to claim 1, wherein the control device (120) comprises: A valve (122) is arranged between the steam generator (104) and the steam outlet (110); or A pump (106) is arranged between the water tank (102) and the steam generator (104).

3. The garment care device (100A, 100B, 100C, 100D) according to claim 1 or claim 2, wherein the garment care device further comprises a second sensing unit (132) connected to the processing unit (130) for measuring the angular position (A1) of the overall flat surface (109) relative to the horizontal surface (HS), wherein the main condition further comprises the following additional condition: After the first duration (D1), the second sensing unit detects that the angular position is greater than a given angular threshold (A2).

4. The garment care device (100A, 100B, 100C, 100D) according to claim 3, wherein when the angular position is greater than the given angle threshold for at least a given minimum duration, the second sensing unit (132) detects that the additional condition that the angular position (A1) is greater than the given angle threshold (A2) is satisfied after the first duration.

5. The garment care device (100A, 100B, 100C, 100D) according to claim 3 further includes a third sensing unit (134) for measuring the movement of the garment care device, wherein the main condition further includes the following additional conditions: After the first duration (D1), the third sensing unit detects a movement with a first value (MV1) greater than the first movement threshold (MV1_TH).

6. The garment care device (100A, 100B, 100C, 100D) according to claim 5, wherein the processing unit (130) is adapted to: set the control device (120) to the second state if the first sensing unit (128) detects that the user is no longer holding the garment care device at a certain time.

7. The garment care device (100A, 100B, 100C, 100D) according to claim 6, wherein the processing unit (130) is adapted to reset the control device (120) to the first state when the following secondary conditions are met: The first sensing unit (128) detects that the user holds the garment care device again during a second duration (D2) starting from the specific time.

8. The garment care device (100A, 100B, 100C, 100D) according to claim 7, wherein the secondary condition further includes the following condition: During the second duration (D2), the second sensing unit (132) detects that the angular position (A1) of the overall flat surface (109) compared to the horizontal surface (HS) is greater than the given angle threshold (A2).

9. The garment care device (100A, 100B, 100C, 100D) according to claim 7 or 8, wherein the secondary condition further includes the following condition: During the second duration (D2), the third sensing unit (134) detects a movement having a second value (MV2) greater than the second movement threshold (MV2_TH).

10. The garment care device (100A, 100B, 100C, 100D) according to claim 5, wherein the processing unit (130) is adapted to maintain the control device (120) in the first state as long as the third sensing unit (134) detects that the movement of the garment care device is higher than a third movement threshold.

11. The garment care device (100A, 100B, 100C, 100D) according to any one of claims 1, 2, 4 to 8 and 10, wherein the processing unit (130) is adapted to set the control device (120) to the second state once the button (124) is actuated by the user.

12. The garment care device (100A, 100B, 100C, 100D) according to any one of claims 1, 2, 4 to 8 and 10, wherein the first duration (D1) is in the range of 1 second to 5 seconds.

13. The garment care device (100A, 100B, 100C, 100D) according to any one of claims 1, 2, 4 to 8 and 10, wherein the first sensing unit (128) includes a capacitive sensor configured to detect when the user touches the garment care device.

14. A method for controlling steam generation in garment care equipment (100A, 100B, 100C, 100D), the garment care equipment comprising: Water tank (102) is used to hold water; A steam generator (104) is in fluid communication with the water tank for generating steam; A base plate (108) defines a generally flat surface (109) including a plurality of steam outlets (110) in fluid communication with the steam generator; A control device (120) is used to control the flow of steam leaving the steam outlet, the control device being adapted to employ a first state that causes steam to leave the steam outlet and a second state that causes steam not to leave the steam outlet; Button (124), adapted to be actuated by the user of the garment care device; The first sensing unit (128) is used to detect whether the user is holding the garment care device; The method includes the following steps: if the following main conditions are met, the control device is set to the first state: The button has been pressed continuously by the user for at least a first duration (D1), and After the first duration (D1), the first sensing unit detects that the user is holding the garment care device.

15. A computer program product comprising instruction code executed by a processing unit (130) of a garment care device (100A, 100B, 100C, 100D), the garment care device further comprising: Water tank (102) is used to hold water; A steam generator (104) is in fluid communication with the water tank for generating steam; A base plate (108) defines a generally flat surface (109) including a plurality of steam outlets (110) in fluid communication with the steam generator; A control device (120) is used to control the flow of steam leaving the steam outlet, the control device being adapted to employ a first state that causes steam to leave the steam outlet and a second state that causes steam not to leave the steam outlet; Button (124), adapted to be actuated by the user of the garment care device; A first sensing unit (128) is used to detect whether the user is holding the garment care device, wherein the processing unit (130) is connected to the button and the first sensing unit; When the instruction code is executed by the processing unit, a method is implemented, the method comprising the steps of: setting the control device to the first state if the following main conditions are met: The button has been pressed continuously by the user for at least a first duration (D1), and After the first duration (D1), the first sensing unit detects that the user is holding the garment care device.

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