Body fat scale and circuitry of the body fat scale

Abstract

Body fat scale that shows: a main body comprising a panel (101) and a lower housing (102) connected to each other, between which a receiving chamber is formed; a body fat measuring device arranged on the panel (101); and a keypad for parameter setting, which is located in the recording chamber.

Description

[0001] The present application refers to the Chinese patent application No. 2024227271966 entitled “Body fat scale and circuit of the body fat scale”, filed on November 7, 2024, which is hereby incorporated in its entirety by reference. Technical field

[0002] The present application relates to the technical field of measuring devices, in particular a body fat scale and a circuit of a body fat scale. State of the art

[0003] A body fat scale is also referred to as a scale for human body fat and refers to a weighing device that can measure not only body weight but also fat content, water content, or similar factors.

[0004] Typically, body fat scales need to be connected and paired with a device such as a mobile phone or similar. A user can configure body fat measurements via a client installed on the device, which leads to inflexible use of the scale. Disclosure of the utility model

[0005] Based on this, to solve the above technical problem it is necessary to provide a body fat scale and a circuit for a body fat scale that can increase the flexibility of using the body fat scale.

[0006] The first aspect is a body fat scale which features: a main body comprising a panel and a lower housing connected to each other, between which a receiving chamber is formed; a body fat measuring device arranged on the panel; and a keypad for parameter setting, which is located in the recording chamber.

[0007] In one embodiment, it is provided that the panel has a touch area corresponding to the key device for parameter setting, wherein the key device for parameter setting can be triggered when the touch area is touched.

[0008] In one embodiment, the body fat measuring device has two pairs of electrode plates arranged in the panel, each pair of electrode plates having a first electrode plate and a second electrode plate, the panel having two body fat measuring areas corresponding to the two pairs of electrode plates, the contact area being located between the two body fat measuring areas, and the contact area being located near the first electrode plate of the two pairs of electrode plates and spaced apart from the second electrode plate of the two pairs of electrode plates.

[0009] In one embodiment, the keypad for parameter setting comprises a touch electrode, a touch detection circuit, and a light-emitting component, wherein the touch electrode is connected to the touch detection circuit, wherein the touch electrode is located in a first direction below the touch area and the first direction is a direction pointing from the lower housing to the panel, wherein the touch detection circuit and the light-emitting component are arranged on a printed circuit board, and wherein a light-emitting surface of the light-emitting component faces the panel.

[0010] In one embodiment, the keypad for parameter setting further comprises a light-diffusing film, wherein the light-diffusing film is arranged on the light-emitting light path between the light-emitting component and the panel, wherein the light-diffusing film has a light-transmitting area and an opaque area, wherein the light transmittance of the light-transmitting area is greater than the light transmittance of the opaque area, and wherein the light-transmitting area is located below the touch area in the first direction.

[0011] In one embodiment, the contact electrode is arranged between the light-emitting component and the light-diffusing film, and the contact electrode has a through-hole for the light path, wherein the through-hole for the light path is located on the light-emitting light path between the light-emitting component and the light-transmitting area of ​​the light-diffusing film, and wherein the light rays emitted by the light-emitting component can be emitted through the through-hole for the light path onto the light-transmitting area of ​​the light-diffusing film.

[0012] In one of the embodiments, the contact electrode is a contact spring.

[0013] In one of the embodiments, the keypad for parameter setting further comprises a light aperture arranged between the light-emitting component and the light-diffusing film. wherein the light aperture has a through-hole for the light path, around which a receiving groove is formed in which the contact electrode is received, wherein the through-hole for the light path of the contact electrode and the through-hole for the light path of the light aperture are arranged overlapping, wherein the opening for the light path of the light aperture is located on the light-emitting light path between the light-emitting component and the light-transmitting area of ​​the light-diffusing film, and wherein the light rays emitted by the light-emitting component can be emitted through the opening for the light path of the light aperture onto the light-transmitting area of ​​the light-diffusing film.

[0014] In one of the embodiments, the body fat scale further comprises a button device for switching on and off, wherein the button device for switching on and off is arranged on a side of the lower housing facing away from the panel.

[0015] In a second aspect, a circuit diagram for a body fat scale is provided, which features: a body fat measurement circuit for measuring body fat; a keypad for parameter setting, arranged in a recording chamber formed by a panel of the body fat scale and a lower housing of the body fat scale; and a main control circuit connected to the body fat measurement circuit and the parameter setting button circuit, wherein the main control circuit can receive a measurement signal sent by the body fat measurement circuit and generate a body fat measurement result based on the measurement signal, and wherein the main control circuit can further receive a trigger signal output by the triggered parameter setting button circuit and respond to the trigger signal.

[0016] In one embodiment, the keypad for parameter setting comprises a touch electrode and a touch detection circuit connected to each other, the touch detection circuit being connected to the main control circuit, and the touch detection circuit being used to detect data on the change in capacitance using the touch electrode and to output a trigger signal to the main control circuit when it has been detected that the data on the change in capacitance meets a trigger condition.

[0017] In one of the embodiments, the contact electrode is a contact spring.

[0018] The embodiments of the present application provide a body fat scale and a circuit for a body fat scale, wherein the body fat scale comprises a main body, a body fat measuring device, and a button device for parameter setting, and wherein the main body of the body fat scale comprises a panel and a lower housing, which are connected to each other and between which a receiving chamber is formed in which the button device for parameter setting is arranged. Because the button device for parameter setting is arranged on the main body of the body fat scale, the user can configure a body fat measurement using the button device without having to configure the body fat measurement via the client installed in the terminal device, such as a mobile phone or similar device, thus making the body fat scale more flexible to use. Brief description of the characters

[0019] To clarify the technical solutions in the embodiments of the present application and in the prior art, the drawings required to describe these embodiments are briefly presented below. Obviously, the drawings in the following description represent only some embodiments of the present application. A person skilled in the art can obtain further related drawings based on these drawings without any inventive step. Fig. Figure 1 shows a schematic representation of a body fat scale according to an embodiment of the present application; Fig. 2 shows an exploded view of the body fat scale according to an embodiment of the present application; Fig. Figure 3 shows a schematic representation of a circuit of the body fat scale according to an embodiment of the present application; and Fig. Figure 4 shows a schematic representation of a key circuit for parameter setting according to an embodiment of the present application. Reference symbol list: 101 Panel; 102 lower case; 103 Mounting through hole; 104 Support part, 1041 first support part, 1042 Scale foot holder, 1043 Washer, 1044 Rubber pad; 105 Sensor; 106 pairs of electrode plates, 1061 first electrode plate, 1062 second electrode plate; 107 ads; 108 Contact electrode; 109 light-emitting component; 110 light-diffusing film; 111 Lens hood; 301 Body fat measurement circuit; 302 Keypad; 303 Main control circuit; 3021 - Contact electrode; 3022 - Touch detection circuit; C Contact area; D circuit board. Detailed descriptions

[0020] To facilitate understanding of the present application, it is described in more detail below with reference to the corresponding drawings. Exemplary embodiments of the present application are shown in the accompanying drawings. However, the present application can be implemented in many different forms and is not limited to the exemplary embodiments described here. Rather, the purpose of providing these exemplary embodiments is to make the disclosure of the present application more understandable and comprehensive.

[0021] Unless otherwise defined, all technical and scientific terms used herein shall have the same meanings as generally understood by those skilled in the art in this field. The terms used in the description of this application serve only to describe the problem addressed in the specific embodiments, without limiting the application.

[0022] It is to be understood that the terms "first," "second," etc., used in this application serve to describe different elements, without these elements being limited by these terms. These terms serve only to distinguish one first element from another. For example, a first resistor may be referred to as a second resistor, and analogously a second resistor as a first resistor, without departing from the scope of this application. The first resistor and the second resistor both refer to resistors, but not to the same resistor.

[0023] It should be understood that in the following examples, a “connection” is to be understood as an “electrical connection”, “communication connection” or the like, where electrical signals or data are transmitted between interconnected circuits, modules, units or the like.

[0024] It should be understood that "at least one" refers to one or more, and "several" to two or more than two. "At least a part of an element" refers to a part or the whole of the element.

[0025] When used here, "a," "an," and "the" in the singular can also refer to their plural forms, unless explicitly stated otherwise in the context. It should also be understood that the terms "have / contain" or "show" or similar indicate the presence of features, sets, steps, operations, assemblies, parts, or combinations thereof that are described, without, however, excluding the presence or addition of one or more other features, sets, steps, operations, assemblies, parts, or combinations thereof. The term "and / or" used in this description simultaneously includes any or all combinations of the listed elements.

[0026] A body fat scale is also referred to as a scale for human body fat and refers to a weighing device that can measure not only body weight but also fat content, water content, or similar factors.

[0027] The human body contains 60 to 70 percent water, making it a conductor of electricity. Muscles are conductive, while fat is not. Body fat scales use this property to measure body fat. Specifically, the scale conducts an electrical current through the body. Based on the impedance generated by this current, the scale calculates the body's water content. This, in turn, determines the body's fat-free mass. Finally, the scale calculates the amount and percentage of body fat based on this fat-free mass.

[0028] Typically, body fat scales need to be connected and paired with a device such as a mobile phone. Once connected and paired, the user can configure body fat measurements using a client installed on the device. For example, the user's height, weight, gender, and other relevant information are configured.

[0029] Because, in the prior art, body fat measurement can only be configured by a client installed in an end device, this leads to inflexible use of the body fat scale. In light of this, the embodiments of the present application provide a body fat scale and a circuit for a body fat scale, wherein the body fat scale comprises a main body, a body fat measuring device, and a button device for parameter setting, and wherein the main body of the body fat scale comprises a panel and a lower housing, which are connected to each other and between which a receiving chamber is formed in which the button device for parameter setting is arranged.Because the keypad for parameter setting is located on the main body of the body fat scale, the user can configure a body fat measurement using the keypad without having to configure the body fat measurement through the client installed in the terminal device such as a mobile phone or similar, thus making the body fat scale more flexible to use.

[0030] See Fig. 1 and Fig. 2. This shows Fig. 1 a schematic representation of a body fat scale according to an embodiment of the present application, and Fig. Figure 2 shows an exploded view of the body fat scale according to an embodiment of the present application.

[0031] As in Fig. 1 and Fig. As shown in Figure 2, the body fat scale can have a main unit, a body fat measuring device, and a button unit for parameter settings. The body fat measuring device is used for measuring body fat. The button unit for parameter settings is used to adjust parameters, which can include: parameters required for body fat measurement, user parameters, user-preferred parameters, operating parameters of the body fat scale, etc. For example, the parameters required for body fat measurement can include the user's height, the user's gender, etc. The user parameters can include the user's account, the user's account password, and the like. The user's preferred parameters can include the user's preferred measurement methods, and the like.The operating parameters of the body fat scale can include the standby time, the content displayed, the default measurement mode, etc. The embodiments described in this application are expressly not limited to these.

[0032] The main body of the body fat scale can comprise a panel 101 and a lower housing 102, the panel 101 being a glass panel. The panel 101 is connected to the lower housing 102. Optionally, the panel 101 can be either permanently or detachably connected to the lower housing 102. After the panel 101 is connected to the lower housing 102, a receiving chamber can be formed between the panel 101 and the lower housing 102.

[0033] As in Fig. As shown in Figure 2, the lower housing 102 can be provided with several mounting through-holes 103. Fig. Figure 2 shows only two mounting holes 103, but the reader should understand that there can actually be more than two mounting holes 103, for example, four mounting holes 103. Several support parts 104 can be mounted using the multiple mounting holes 103.

[0034] As in Fig. As shown in Figure 2, the support part 104 can comprise a first support part 1041, a balance foot holder 1042, a washer 1043, and a rubber pad 1044. A support surface of the first support part 1041 is in contact with the panel 101, either directly or indirectly via another part. The other surface of the first support part 1041, opposite the support surface, is connected to one end of the balance foot holder 1042, and the other end of the balance foot holder 1042 is connected to the rubber pad 1044 via the washer 1043.

[0035] The first support element 1041 is received in the receiving chamber formed between the panel 101 and the lower housing 102. The scale foot holder 1042 is partially or completely received in the receiving chamber formed between the panel 101 and the lower housing 102. The rubber pad 1044 is located outside the lower housing 1042. When the body fat scale is placed on a flat surface, the rubber pad 1044 is in contact with the surface to provide a non-slip function.

[0036] See further Fig. 2. In an optional embodiment of the present application, a sensor 105 can be arranged between the first support element 1041 and the scale foot holder 1042. For example, the sensor 105 can be a pressure sensor. The pressure sensor 105 can be used to measure the body weight of a user standing on the body fat scale.

[0037] See Fig. 1 and Fig. 2. The body fat measuring device of the body fat scale can have two pairs of electrode plates 106 arranged in the panel 101, each pair of electrode plates 106 comprising a first electrode plate 1061 and a second electrode plate 1062. The panel 101 has two body fat measurement ranges corresponding to the two pairs of electrode plates 106. The body fat measurement ranges can be those described in Fig. The two body fat measurement areas are represented by dashed lines. During body fat measurement, each of these areas supports a body part of the user being measured. For example, the two body fat measurement areas could be foot pads. During the measurement, each of the two body fat measurement areas can support the user's feet. The user's feet can be in contact with the pairs of electrode plates 106 in the body fat measurement areas to perform the body fat measurement.

[0038] In an optional embodiment of the present application, it is provided that the body fat scale further includes a body fat detection circuit (in Fig. 2 (not shown), which is connected to the two pairs of electrode plates 106. The body fat detection circuit can be configured as a control chip, a single-chip microcomputer, an MCU (microcontroller unit), or the like. The body fat detection circuit can, for example, include a circuit for generating a detection current, a circuit for transmitting a detection current, a circuit for detecting an impedance, etc. The embodiments of the present application are expressly not limited to such embodiments.

[0039] In an optional embodiment of the present application, it is provided that the body fat detection circuit can be arranged on a printed circuit board D. The printed circuit board D can be received in the receiving chamber formed between the panel 101 and the lower housing 102.

[0040] In an optional embodiment of the present application, a main control circuit may also be provided on the printed circuit board D. The main control circuit may be configured as a control chip, a single-chip microcomputer, an MCU, or the like. The body fat detection circuit may be connected to the main control circuit. In an optional embodiment of the present application, the body fat detection circuit may be integrally configured with the main control circuit. The embodiments of the present application are expressly not limited to such possibilities.

[0041] See Fig. 2. The parameter setting button device included in the body fat scale in the embodiments of the present application can be arranged in the receiving chamber formed between the panel 101 and the lower housing 102. A touch area C corresponding to the parameter setting button device is located on the panel 101, and the parameter setting button device can be triggered when the touch area C corresponding to the parameter setting button device is touched.

[0042] In an optional embodiment of the present application, the body fat scale may have one or more button devices for parameter setting, each of which can perform different actions after being triggered. For example, in an optional embodiment, the body fat scale may have three button devices for parameter setting: a setting button, an up setting button, and a down setting button. Accordingly, three touch areas C may be provided on the panel 101. The three touch areas C comprise a touch area corresponding to the setting button, a touch area corresponding to the up setting button, and a touch area corresponding to the down setting button.It should be understood that the setting button is activated when the corresponding touch area is touched. Similarly, the up setting button is activated when the corresponding touch area is touched. The down setting button is activated when the corresponding touch area is touched.

[0043] In an optional embodiment of the present application, it is provided that the contact area C on panel 101 can be located between the two above body fat measurement areas, and that the contact area C is located near the first electrode plate 1061 of the two pairs of electrode plates 106 and away from the second electrode plate 1062 of the two pairs of electrode plates 105.

[0044] See Fig. 1 and Fig. 2. In an optional embodiment of the present application, it is provided that a display 107 is further embedded in the panel 101. In a direction pointing from the second electrode plate 1062 to the first electrode plate 1061, the contact area C can be located below the display 107.

[0045] By positioning touch area C in the above position, the user can conveniently touch it during body fat measurement (with both feet resting on the body fat measurement areas of panel 101). This triggers the parameter setting button, causing the body fat scale to respond accordingly. Simultaneously, this position ensures that the user's body parts do not come into contact with touch area C during the measurement, thus preventing accidental contact.

[0046] See Fig. 2. In an optional embodiment of the present application, it is provided that the keypad for parameter setting includes a touch electrode 108 and a touch detection circuit (in Fig. 2 (not shown), which are interconnected. The touch electrode 108 is located below the touch area C in a first direction. The first direction is a direction pointing from the lower housing 102 towards the panel 101. The touch detection circuit can be configured as a control chip, a single-chip microcomputer, an MCU, or the like. The touch detection circuit can be arranged on the printed circuit board D. In an optional embodiment of the present application, the touch detection circuit can be connected to the main control circuit. Optionally, the touch detection circuit can be integrally configured with the main control circuit. The embodiments of the present application are expressly not limited to such possibilities.

[0047] It should be noted that in a body fat scale with multiple parameter setting buttons, each parameter setting button may have contact electrodes 108. The contact electrodes 108 formed by each parameter setting button are located in the first direction below the contact areas C corresponding to the respective parameter setting buttons.

[0048] In an optional implementation, the multiple parameter setting buttons can use a common touch sensing circuit, with the multiple touch electrodes 108 connected to the touch sensing circuit. Alternatively, each of the multiple parameter setting buttons can have its own touch sensing circuit, with a touch electrode 108 and a touch sensing circuit encompassed by the individual parameter setting button being interconnected.

[0049] In an optional embodiment of the present application, a capacitance Cx exists between the contact electrode 108 and the ground. When a part of the human body touches the contact area C above the contact electrode 108, the capacitance Cx between the contact electrode 108 and the ground changes, and thus the charge on the contact electrode 108 also changes. By detecting the change in charge on the contact electrode 108, the touch detection circuit can determine whether the contact area C is being touched.

[0050] As in Fig. As shown in Figure 2, in an optional embodiment of the present application it is provided that the keypad for parameter setting may further comprise a light-emitting component 109 and a light-diffusing film 110.

[0051] The light-emitting component 109 is arranged on the circuit board D. The light-emitting component 109 could be, for example, an LED or similar device. The light-emitting surface of the light-emitting component 109 is directed towards the panel 101. This means that light rays can be emitted onto the panel 101 by the light-emitting component 109. The light-emitting component 109 can be connected to the main control circuit on the circuit board D and operated under the control of the main control circuit.

[0052] The light-diffusing film 110 is arranged on the light-emitting path between the light-emitting component 109 and the panel 110, wherein the light-diffusing film 110 can have a transparent area and an opaque area, the light transmittance of the transparent area being greater than the light transmittance of the opaque area, and wherein the transparent area is located below the touch area C in the first direction. In an optional embodiment of the present application, the shape of the transparent area is that of a key indicator symbol.

[0053] Because the light-diffusing film 110 is arranged on the light-emitting path between the light-emitting component 109 and the panel 110, and because the light-diffusing film 110 has a translucent area located below the touch area C in the first direction, the light rays emitted by the light-emitting component 109 can be reflected through the translucent area of ​​the light-diffusing film 110 onto the touch area C after they have been emitted by the light-emitting component 109. In an optional embodiment, the shape of the translucent area of ​​the light-diffusing film 110 can be in the shape of a key indicator symbol, forming a light spot on the touch area C that corresponds to the shape of the key indicator symbol.The light spot can indicate to the user that they need to touch area C when the button device needs to be triggered for parameter setting.

[0054] It should be noted that in a body fat scale with multiple parameter setting buttons, these buttons may use a common light-diffusing film 110. The light-diffusing film 110 may have multiple translucent areas, each uniquely corresponding to one of the parameter setting buttons. The shapes of these translucent areas represent button indicator symbols corresponding to the different parameter setting buttons. For example, a button indicator symbol corresponding to the setting button may be labeled with the English letter "set". A button indicator symbol corresponding to the down setting button may be labeled with a downward-pointing arrow. A button indicator symbol corresponding to the up setting button may be labeled with an upward-pointing arrow.

[0055] The above explanation makes it clear to the reader that the button indicator symbol displayed in the touch area C of panel 101 is actually formed by a spot of light. When the body fat scale is not switched on, i.e., when the light-emitting component 109 is out of operation, panel 101 thus presents an integral visual effect, whereby the button indicator symbol is not visible to the naked eye in touch area C. In some possible embodiments, it is of course also possible that the button indicator symbol in touch area C of panel 101 could be formed by various methods, such as etching, ink spraying, and the like. The button indicator symbol overlaps with the button indicator symbol formed by the spot of light, so that the non-light-emitting button indicator symbol is also perceptible to the naked eye in touch area C when the light-emitting component 109 is out of operation.

[0056] In an optional embodiment of the present application, it is provided that in a body fat scale with multiple parameter setting buttons, the multiple parameter setting buttons can use a common light-emitting component 109. Alternatively, the multiple parameter setting buttons can use multiple common light-emitting components 109, wherein the number of multiple light-emitting components 109 can be less than, equal to, or greater than the number of parameter setting buttons.

[0057] It should be noted that the light-diffusing film 110 has a light-diffusing function, so that the light emitted from the light-emitting component 109 onto the panel 101 can be more uniform and gentle.

[0058] In an optional embodiment of the present application, it is provided that the contact electrode 108 is arranged between the light-emitting component 109 and the light-diffusing film 110, and that the contact electrode 108 has a through-hole for the light path, wherein the through-hole for the light path of the contact electrode 108 is located on the light-emitting light path between the light-emitting component 109 and the light-transmitting area of ​​the light-diffusing film 110, and wherein the light rays emitted by the light-emitting component 109 can be emitted through the through-hole for the light path of the contact electrode 108 onto the light-transmitting area of ​​the light-diffusing film 110.

[0059] In an optional embodiment of the present application, the touch electrode 108 can be a ring-shaped electrode or a touch spring, which may contain a spiral conductor. Because the spiral conductor can carry more charge, the amplitude of the change in its charge can also be large. This allows the touch detection circuit to detect a significant signal about the change in charge, thus increasing the sensitivity of the touch detection.

[0060] In an optional embodiment of the present application, the keypad for parameter setting further comprises a light aperture 111, wherein the light aperture 111 is arranged between the light-emitting component 109 and the light-diffusing film 110. The light aperture 111 has a through-hole for the light path, around which a receiving groove is formed in which the contact electrode 108 is received, the through-hole for the light path of the contact electrode 108 and the through-hole of the light aperture being arranged to overlap. The through-hole of the light aperture is located on the light-emitting light path between the light-emitting component 109 and the light-transmitting area of ​​the light-diffusing film 110. The light rays emitted by the light-emitting component 109 can be directed through the through-hole of the light aperture onto the light-transmitting area of ​​the light-diffusing film 110.

[0061] It should be noted that in a body fat scale with multiple parameter setting buttons, these buttons can use a common light aperture 111. In this case, the light aperture 111 can have multiple light path openings, each uniquely corresponding to one of the parameter setting buttons. A receiving groove is provided around each of these openings. The contact electrode 108, corresponding to each parameter setting button, is received in the receiving groove around the opening in the light aperture that corresponds to the parameter setting button.

[0062] In an optional embodiment of the present application, the body fat scale may further have a switch for turning it on and off, wherein the switch for turning it on and off is arranged on a side of the lower housing 102 facing away from the panel 101. That is to say, the switch for turning it on and off is located on the underside of the body fat scale when the body fat scale is properly positioned.

[0063] In an optional embodiment of the present application, it is provided that the button device for switching on and off is used to trigger the switching on and / or off of the body fat scale.

[0064] In an optional embodiment of the present application, the on / off switch device includes a button. In this case, the body fat scale is switched to an off state in response to the activation of the button if the body fat scale is in an on state and the button is activated. Similarly, the body fat scale is switched to an on state in response to the activation of the button if the body fat scale is in an off state and the button is activated.

[0065] In an optional embodiment of the present application, the on / off switch device comprises two switches, one of which is configured as an on / off switch for triggering the switching on of the body fat scale, and the other as an off / off switch for triggering the switching off of the body fat scale. If the body fat scale is in the off state and the on / off switch is pressed, the body fat scale switches to the on state in response to the activation of the on / off switch. Conversely, if the body fat scale is in the on state and the off / off switch is pressed, the body fat scale switches to the off state in response to the activation of the off / off switch.

[0066] One embodiment of the present application further provides a circuit for a body fat scale. Optionally, the circuit for the body fat scale can be configured in the Fig. 1 or Fig. The body fat scales shown in section 2 should be arranged as shown. See Fig. 3. The circuit of the body fat scale comprises a body fat measurement circuit 301, a keypad circuit 302 for parameter setting, and a main control circuit 303. The body fat measurement circuit 301 is used for body fat measurement. In an optional embodiment of the present application, the circuit of the body fat scale can have multiple keypad circuits 302 for parameter setting, wherein the keypad circuits 302 for parameter setting are arranged in the receiving chamber formed by the panel of the body fat scale and the lower housing of the body fat scale. In an optional embodiment of the present application, a touch area corresponding to the keypad circuit for parameter setting is provided on the panel, wherein the keypad circuit for parameter setting can be triggered when the touch area is touched.

[0067] The main control circuit 303 is connected to the body fat measurement circuit 301 and the keypad circuit 302 for parameter setting, wherein the main control circuit 303 can receive a measurement signal sent by the body fat measurement circuit 301 and generate a body fat measurement result based on the measurement signal, and wherein the main control circuit 303 can further receive a trigger signal output by the triggered keypad circuit 302 for parameter setting and react to the trigger signal.

[0068] See Fig.4. In an optional embodiment of the present application, the keypad 302 for parameter setting may comprise a touch electrode 3021 and a touch detection circuit 3022, which are connected to each other, the touch detection circuit 3022 being connected to the main control circuit 303. In an optional embodiment of the present application, the touch detection circuit 3022 is used to detect data on the change in charge at the touch electrode 3021 and to output a trigger signal to the main control circuit 303 when it is detected that the data on the change in charge meets a trigger condition. In an optional embodiment of the present application, the touch electrode 3021 is a touch spring.It should be noted that the touch electrode 3021 and the touch detection circuit 3022 have already been described in the above embodiments, so they are not repeated in the embodiment of the present application.

[0069] It should be noted that in a body fat scale circuit with multiple button circuits 302 for parameter setting, each of the multiple button circuits 302 for parameter setting can have a touch electrode 3021. In an optional implementation, the multiple button circuits 302 for parameter setting can use a common touch detection circuit 3022, wherein the touch detection circuit 3022 can be connected to the multiple touch electrodes 3021. In another optional implementation, each of the multiple button circuits 302 for parameter setting can be equipped with a touch detection circuit 3022, wherein a touch electrode 3021 and a touch detection circuit 3022, which are encompassed by the same button circuit 302 for parameter setting, can be connected to each other.

[0070] In an optional embodiment, the body fat scale can be equipped with three button devices for parameter setting, namely a setting button, an up setting button, and a down setting button. Accordingly, the circuitry of the body fat scale can have three button circuits 302 for parameter setting, namely one button circuit for setting parameters, one button circuit for upsetting parameters, and one button circuit for downsetting parameters. The embodiments described below in the present application provide a brief description of the reactions of the main control circuit 303 to trigger signals output by the three button circuits for parameter setting.

[0071] When the touch sensor circuit 3022 detects the activation of the settings button, an initial trigger signal can be sent to the main control circuit 303. Upon receiving this initial trigger signal, the main control circuit 303 can determine whether the body fat scale is in a settings mode. If the body fat scale is not in settings mode, it is switched to settings mode, and an interface with a settings menu is displayed. If the body fat scale is in settings mode, the display is controlled to either switch from the interface with the currently displayed settings menu to an interface with a different settings menu, or to change setting parameters within the interface with the currently displayed settings menu.In an optional embodiment of the present application, the interface with a settings menu can be understood as an interface with a settings menu for body weight, an interface with a settings menu for height, or an interface with a settings menu for gender. The interface with a settings menu for body weight can be used to set parameters related to body weight. The interface with a settings menu for height can be used to set parameters related to height. The interface with a settings menu for gender can be used to set gender.

[0072] When the touch sensor circuit 3022 detects the activation of the up setting button, a second trigger signal can be sent to the main control circuit 303. Upon receiving this second trigger signal, the main control circuit 303 can determine whether the body fat scale is in setting mode. If the body fat scale is not in setting mode, no action is taken. If the body fat scale is in setting mode, the current setting parameters, such as height, weight, or gender, are increased.

[0073] When the touch detection circuit 3022 detects the activation of the downward adjustment button, a third trigger signal can be sent to the main control circuit 303. Upon receiving this third trigger signal, the main control circuit 303 can determine whether the body fat scale is in adjustment mode. If the body fat scale is not in adjustment mode, no response occurs. If the body fat scale is in adjustment mode, the current setting parameters, such as height, weight, or gender, are adjusted downwards.

[0074] In the description, the explanation referring to terms such as "some embodiments" or "other embodiments" should be interpreted in such a way that specific features, structures, materials, or properties explained by reference to the embodiment or example are encompassed by at least one embodiment or example of the present application. In the present description, the exemplary expression "by reference to the above-mentioned terms" does not necessarily refer to the same embodiment or example.

[0075] The various technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the various technical features are described in the embodiments described above. As long as the combination of these technical features is not contradictory, it should be considered to fall within the scope of this description.

[0076] The exemplary embodiments described above represent only some embodiments of the present application and are explained in a relatively specific and detailed manner, but they should not be interpreted as limiting the scope of protection of the present application. It should be noted that, for the person skilled in the art, several variations and improvements can be made without departing from the concept of the present application, and these fall within the scope of protection of the present application. The scope of protection of the present application should therefore depend on the appended claims. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CH 2024227271966

[0001]

Claims

[1] Body fat scale which shows: a main body comprising a panel (101) and a lower housing (102) connected to each other, between which a receiving chamber is formed; a body fat measuring device arranged on the panel (101); and a keypad for parameter setting, which is located in the recording chamber. [2] Body fat scale according to claim 1, wherein the panel (101) has a touch area (C) corresponding to the key device for parameter setting, wherein the key device for parameter setting can be triggered when the touch area (C) is touched. [3] Body fat scale according to claim 1, wherein the body fat measuring device has two pairs of electrode plates (106) arranged in the panel (101), each pair of electrode plates (106) having a first electrode plate (1061) and a second electrode plate (1062), the panel (101) having two body fat measuring areas corresponding to the two pairs of electrode plates (106), the contact area (C) being located between the two body fat measuring areas, and the contact area (C) being located near the first electrode plate (1061) of the two pairs of electrode plates (106) and spaced apart from the second electrode plate (1062) of the two pairs of electrode plates (106). [4] Body fat scale according to claim 1, wherein the button device for parameter setting comprises a touch electrode (108, 3021), a touch detection circuit (3022) and a light-emitting component (109), wherein the touch electrode (108, 3021) is connected to the touch detection circuit (3022), wherein the contact electrode (108, 3021) is arranged in a first direction below the contact area (C) and the first direction is a direction pointing from the lower housing (102) to the panel (101), wherein the touch detection circuit (3022) and the light-emitting component (109) are arranged on a printed circuit board (D), and wherein a light-emitting surface of the light-emitting component (109) faces the panel (101). [5] Body fat scale according to claim 4, wherein the button device for parameter setting further comprises a light-diffusing film (110), wherein the light-diffusing film (110) is arranged on the light-emitting light path between the light-emitting component (109) and the panel (101), wherein the light-diffusing film (110) has a light-transmitting area and an opaque area, wherein the light transmittance of the light-transmitting area is greater than the light transmittance of the opaque area, and wherein the light-transmitting area is located in the first direction below the touch area (C). [6] Body fat scale according to claim 5, wherein the contact electrode (108, 3021) is arranged between the light-emitting component (109) and the light-diffusing film (110), and wherein the contact electrode (108, 3021) has a through-hole for the light path, wherein the through-hole for the light path is located on the light-emitting light path between the light-emitting component (109) and the light-transmitting area of ​​the light-diffusing film (110), and wherein the light rays emitted by the light-emitting component (109) can be emitted through the through-hole for the light path onto the light-transmitting area of ​​the light-diffusing film (110). [7] Body fat scale according to one of claims 4 to 6, wherein the contact electrode (108, 3021) is a contact spring. [8] Body fat scale according to claim 6, wherein the button device for parameter setting further comprises a light aperture (111) arranged between the light-emitting component (109) and the light-diffusing film (110), wherein the light aperture (111) has a through-hole for the light path, around which a receiving groove is formed in which the contact electrode (108, 3021) is received, wherein the through-hole for the light path of the contact electrode (108, 3021) and the through-hole of the light aperture (111) are arranged overlapping, wherein the through-hole of the light aperture (111) is located on the light-emitting light path between the light-emitting component (109) and the light-transmitting area of ​​the light-diffusing film (110), and wherein the light rays emitted by the light-emitting component (109) can be emitted through the through-hole of the light aperture (111) onto the light-transmitting area of ​​the light-diffusing film (110). [9] Body fat scale according to claim 1, wherein the body fat scale further comprises a button device for switching on and off, wherein the button device for switching on and off is arranged on a side of the lower housing (102) facing away from the panel (101). [10] Circuit diagram of a body fat scale which includes: a body fat measurement circuit (301) for measuring body fat; a key circuit (302) for parameter setting, which is arranged in a recording chamber formed by a panel (101) of the body fat scale and a lower housing (102) of the body fat scale; and a main control circuit (303) which is connected to the body fat measurement circuit (301) and the keypad circuit (302) for parameter setting, wherein the main control circuit (303) can receive a measurement signal sent by the body fat measurement circuit (301) and generate a body fat measurement result based on the measurement signal, and wherein the main control circuit (303) can further receive a trigger signal issued by the triggered keypad circuit (302) for parameter setting and can react to the trigger signal.

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