WO2021196550A1 - 按键结构和体脂秤 - Google Patents

按键结构和体脂秤 Download PDF

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Publication number
WO2021196550A1
WO2021196550A1 PCT/CN2020/119643 CN2020119643W WO2021196550A1 WO 2021196550 A1 WO2021196550 A1 WO 2021196550A1 CN 2020119643 W CN2020119643 W CN 2020119643W WO 2021196550 A1 WO2021196550 A1 WO 2021196550A1
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WIPO (PCT)
Prior art keywords
conductive
block
conductive block
blocks
trace
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PCT/CN2020/119643
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English (en)
French (fr)
Inventor
朱冠华
高灿灿
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广东乐心医疗电子股份有限公司
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Publication of WO2021196550A1 publication Critical patent/WO2021196550A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
    • G01G19/50—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons having additional measuring devices, e.g. for height
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches

Definitions

  • This application relates to the technical field of touch buttons, and in particular to a button structure and a body fat scale.
  • the function keys of body fat scales usually need to mount a touch panel on the lower surface of the carrier glass and install a touch recognition chip on the touch panel for key recognition.
  • the installation of the touch panel and the touch recognition chip has high cost and complicated installation procedures. The problem.
  • a key structure including:
  • the substrate includes the first touch area
  • a conductive layer disposed on the substrate, and the conductive layer includes a first conductive block and a second conductive block;
  • the main control circuit is electrically connected to the first conductive block and the second conductive block, respectively;
  • the first conductive block and the second conductive block are distributed in the first touch area at intervals, so that when a user touches the first touch area, the first conductive block and the second conductive block conduct electricity. And generate a first on-signal to transmit to the main control circuit.
  • the main control circuit includes a resistor, a power supply, and a microcontroller
  • the substrate further includes a second touch area
  • the conductive layer further includes a third conductive block, a fourth conductive block, and a first conductive block. Traces and second conductive traces, the first conductive trace corresponds to the first touch area, the second conductive trace corresponds to the second touch area, the first conductive trace and the The resistance values of the second conductive traces are different;
  • the third conductive block and the fourth conductive block are distributed in the second touch area at intervals, so that when a user touches the second touch area, the third conductive block and the fourth conductive block are connected and connected.
  • Power supply, the second conductive block and the fourth conductive block are both connected to the first end of the resistor, the second end of the resistor is grounded, and the second conductive block and the fourth conductive block are both connected to The microcontroller is electrically connected.
  • the first conductive trace and the second conductive trace have the same length but different widths.
  • the first conductive trace and the second conductive trace have the same width but different lengths.
  • the first conductive trace and the second conductive trace have different lengths and different widths.
  • the substrate further includes a third touch area
  • the conductive layer further includes a fifth conductive block, a sixth conductive block, and a third conductive trace.
  • the resistance values of the first conductive trace, the second conductive trace, and the third conductive trace are different;
  • the fifth conductive block and the sixth conductive block are distributed in the third touch area at intervals, so that when a user touches the third touch area, the fifth conductive block and the sixth conductive block are connected and connected. Generate a third conduction signal and transmit it to the main control circuit; the fifth conductive block is connected to the power source through the third conductive trace, the sixth conductive block is connected to the first end of the resistor, so The sixth conductive block is electrically connected with the microcontroller.
  • the button structure further includes a first electrode and a second electrode, the first conductive trace and the second conductive trace are connected to the power supply through the first electrode, and the The second conductive block and the fourth conductive block are connected to the microcontroller through the second electrode.
  • the button structure further includes a first electrode and a second electrode, the first conductive block is connected to the main control circuit through the first electrode, and the second conductive block is connected to the main control circuit.
  • the second electrode is connected with the main control circuit.
  • the main control circuit includes a resistor, a power source, and a microcontroller
  • the first conductive block is connected to the power source
  • the second conductive block is connected to the first end of the resistor, so The second end of the resistor is grounded, and the second conductive block is electrically connected to the microcontroller.
  • the first conductive block includes a plurality of first conductive sub-blocks
  • the second conductive block includes a plurality of second conductive sub-blocks
  • the plurality of first conductive sub-blocks and a plurality of first conductive sub-blocks are alternately arranged at intervals.
  • the plurality of first conductive sub-blocks include a first horizontal conductive sub-block and a plurality of first vertical conductive sub-blocks, and the plurality of first vertical conductive sub-blocks are vertically connected to each other at intervals.
  • the first horizontal conductive sub-blocks form a plurality of first gap regions
  • the plurality of second conductive sub-blocks include a second horizontal conductive sub-block and a plurality of second vertical conductive sub-blocks
  • the plurality of first conductive sub-blocks Two vertical conductive sub-blocks are vertically connected to the second horizontal conductive sub-block at intervals and form a plurality of second gap regions.
  • the number of the first gap regions is equal to that of the second vertical conductive sub-blocks.
  • the number is the same, the number of the plurality of second gap regions is the same as the number of the plurality of first vertical conductive sub-blocks, and each of the first vertical conductive sub-blocks is disposed in one of the second gap regions Each of the second vertical conductive sub-blocks is arranged in one of the first gap regions.
  • the first conductive block and the second conductive block are arranged in parallel at intervals, so that when the user touches the first touch area, the first conductive block and the second conductive block are conductive Pass.
  • the first conductive block and the second conductive block are zigzag-shaped conductive blocks with edges parallel to each other.
  • both the first conductive block and the second conductive block are made of at least one of indium tin oxide, conductive glue, conductive cloth, and conductive leather.
  • An embodiment of the present application also provides a body fat scale, which includes the above-mentioned button structure.
  • FIG. 1 is a schematic diagram of a button structure provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of a button structure provided by another embodiment of the application.
  • FIG. 3 is a schematic diagram of a button structure provided by still another embodiment of the application.
  • FIG. 4 is a schematic diagram of a button structure provided by another embodiment of the application.
  • FIG. 5 is a schematic diagram of a button structure provided by another embodiment of the application.
  • an embodiment of the present application provides a button structure that can be applied to a body fat scale.
  • the button structure specifically includes: a substrate 10, which includes a first touch area 101, and A touch area 101 represents a range of an area that the user can touch when in use; the main control circuit 20. It can be seen from FIGS. 1 and 2 that the main control circuit 20 is not disposed on the substrate 10 with the first touch area 101, and the main control circuit 20 can be disposed under the substrate 10 and can be located on the body fat.
  • a conductive layer 30, the conductive layer 30 is also provided on the substrate 10, and the conductive layer 30 includes a first conductive block 301 and a second conductive block 302, the main control circuit 20 and the first conductive block respectively 301 and the second conductive block 302 are electrically connected.
  • the aforementioned main control circuit 20 is electrically connected to the first conductive block 301 and the second conductive block 302, respectively, has two meanings: first, the main control circuit 20 is directly connected to the first conductive block 301 and the second conductive block 302 , Indicating that no other components are included between the first conductive block 301 and the main control circuit 20, and between the second conductive block 302 and the main control circuit 20; second, the main control circuit 20 and the first conductive block 301 and the first conductive block 301
  • the two conductive blocks 302 are indirectly connected (other electrical components may exist between the first conductive block 301 and the main control circuit 20, and between the second conductive block 302 and the main control circuit 20).
  • the first conductive block 301 can pass through electrodes Connected to the main control circuit 20, the electrical components may be components such as resistors in addition to electrodes.
  • the first conductive block 301 and the second conductive block 302 are spaced apart and arranged on the substrate 10 corresponding to the first touch area 101.
  • the second conductive block 302 can be A conductive block 301 and a second conductive block 302 are conductive and generate a first conductive signal to be transmitted to the main control circuit 20.
  • the above-designed button structure when the above-designed button structure is working, for example, when the user touches the first touch area 101 with a finger, the first conductive block 301, the user's finger, and the second conductive block 302 form a path, thereby generating the first
  • the conduction signal is transmitted to the main control circuit 20, so that the main control circuit 20 receives the first conduction signal connecting the first conductive block 301 and the second conductive block 302, and the main control circuit 20 can be based on the received first conduction signal.
  • the communication signal recognizes that the first touch area 101 is touched, that is, a key operation is generated in the first touch area 101.
  • the main control circuit 20 includes a resistor R4, a power supply 201, and a microcontroller 202
  • the substrate 10 further includes a second touch area 102
  • the conductive layer 30 It also includes a third conductive block 303, a fourth conductive block 304, a first conductive trace 305, and a second conductive trace 306.
  • the first conductive trace 305 corresponds to the first touch area 101
  • the second conductive trace 306 corresponds to the second touch area 102.
  • the first conductive trace 305 and the second conductive trace 306 form different resistances due to the difference in length and width.
  • the third conductive block 303 and the fourth conductive block 304 It is also arranged at intervals in the second touch area 102.
  • the third conductive block 303 and the fourth conductive block 304 are turned on to generate a second turn-on signal and transmit it to the main control circuit 20. .
  • the aforementioned main control circuit 20 and the first conductive block 301, between the main control circuit 20 and the second conductive block 302 can be indirectly connected (between the first conductive block 301 and the main control circuit 20, the second conductive block 302 and the main There may be other electrical components between the control circuits 20).
  • the specific connection between the main control circuit 20 and the first conductive block 301 can be that the first conductive block 301 passes through the first conductive block 301.
  • the conductive trace 305 is electrically connected to the power supply 201 in the main control circuit 20; the aforementioned main control circuit 20 and the first conductive block 301, and the main control circuit 20 and the second conductive block 302 can be directly connected (the first conductive block 302).
  • the main control circuit 20 and the second conductive block 302 can be connected in a manner that the second conductive block 302 is connected to the first end of the resistor R4 in the main control circuit 20, and at the same time, the connection end of the second conductive block 302 and the resistor R4 is also connected to the micro in the main control circuit 20.
  • the controller 202 is electrically connected, and the second end of the resistor R4 is grounded.
  • connection between the third conductive block 303 corresponding to the second touch area 102 and the main control circuit 20 is specifically as follows: the third conductive block 303 is also connected to the power supply 201 in the main control circuit 20 through the second conductive trace 306. Electrically connected, the second conductive block 302 is connected to the first end of the resistor R4, and at the same time, the connection end of the fourth conductive block 304 and the resistor R4 is also electrically connected to the microcontroller 202.
  • the user touches the first touch area 101 or the second touch area 102 with a finger, so that the first conductive block 301 and the second conductive block 302 in the first touch area 101 Conduction or conduction of the third conductive block 303 or the fourth conductive block 304 in the second touch area 102 is due to the first conductive trace 305 in the first touch area 101 and the second conductive trace in the second touch area 102
  • the resistance of the line 306 is different, so that when the first touch area 101 and the second touch area 102 are turned on, the partial voltage formed by the resistor R4 is different, and the first turn-on signal and the second turn-on signal are generated.
  • the voltage of the area is different.
  • the microcontroller 202 After the microcontroller 202 receives a certain turn-on signal, the microcontroller 202 then determines whether the first touch area 101 is turned on or the second touch according to the voltage in the received turn-on signal.
  • the area 102 is turned on, so that it can be identified which touch area, that is, the switch is touched by the user.
  • the resistance formed by the conductive traces in each touch area can be measured in advance, the voltage of the power supply 201 can be known in advance when setting, and the resistance of the resistor R4 can be known in advance, so that the first conductive trace 305 can be obtained.
  • the size of the voltage division of the resistor R4 and the size of the voltage division of the second conductive trace 306 and the resistor R4, and then the relationship between the size of the voltage division and the corresponding touch area is stored in the storage unit of the microcontroller 202, in the microcontroller 202 After receiving a certain conduction signal, it can be determined which touch area is touched.
  • the conductive traces with different resistances are used with The partial pressure of the resistor R4 is different to identify the touched area, so that the button structure of the present application can be provided with multiple buttons on the basis of the aforementioned cost saving, which improves the usability of the button structure of the solution of the present application.
  • the present application may also set three or more touch areas, that is, three or more switches, such as When there are three touch areas, as shown in FIG. 3, the substrate 10 further includes a third touch area 103, and the conductive layer 30 further includes a fifth conductive block 307, a sixth conductive block 308, and a third conductive trace 309 ,
  • the third conductive trace 309 corresponds to the third touch area 103, the resistance values of the first conductive trace 305, the second conductive trace 306, and the third conductive trace 309 are different, and the fifth conductive block 307 and The sixth conductive blocks 308 are also spaced apart and arranged on the substrate 10 corresponding to the third touch area 103.
  • a third conduction signal can be generated.
  • 307 is connected to the power supply 201 through a third conductive trace 309.
  • the sixth conductive block 308 is connected to the fourth conductive block 304 and the second conductive block 302 to the same end of the resistor R4.
  • the sixth conductive block 308 is also connected to the microcontroller 202. connect.
  • the micro-control The sensor 202 can obtain the voltage division voltage of the touch area in the conduction signal according to the conduction signal transmitted by the touched area, thereby identifying which touch area is touched, and then identifying which switch is triggered.
  • first conductive trace 305, second conductive trace 306, third conductive trace 309, and first conductive block 301, second conductive block 302, and third conductive block 303, the fourth conductive block 304, the fifth conductive block 307, and the sixth conductive block 308 can be made of indium tin oxide ITO.
  • indium tin oxide ITO it can also be conductive glue, conductive cloth, and conductive leather.
  • the surface of the substrate 10 is used to contact the material for measuring the impedance of the human body.
  • the resistance values of the first conductive trace 305, the second conductive trace 306, and the third conductive trace 309 are different from each other, and may be specifically: the first conductive trace 305, the second conductive trace 306, and the third conductive trace 306.
  • the three conductive traces of the trace 309 have the same length but different widths; it can also be: the first conductive trace 305, the second conductive trace 306, and the third conductive trace 309 have the same width but their The lengths are different from each other; it can also be that the length and width of the first conductive trace 305, the second conductive trace 306, and the third conductive trace 309 are all different, thereby forming conductive traces with different resistance values. Yes, as shown in FIG.
  • the first conductive trace 305, the second conductive trace 306, and the third conductive trace 309 may be conductive traces with different resistance values in the shape shown in FIG. Among them, the widths of the first conductive trace 305, the second conductive trace 306, and the third conductive trace 309 increase in order.
  • the spacing distribution of two conductive blocks in a touch area can specifically have multiple forms, including regular-shaped spacing distributions and irregular-shaped spacing distributions.
  • the distribution of the two conductive blocks in the touch area can be processed in the same way. Therefore, the following uses the first conductive block 301 and the second conductive block 302 in the first touch area 101 as an example to perform the distribution of the two conductive blocks in the touch area.
  • the specific formation method can be as follows:
  • the number of the first conductive block 301 and the second conductive block 302 may be multiple.
  • the multiple first conductive blocks 301 include a first horizontal conductive sub-block 3011 and a plurality of first vertical conductive sub-blocks 3012.
  • the first vertical conductive sub-blocks 3012 are vertically connected to the first horizontal conductive sub-block 3011 at intervals and form a plurality of first gap regions 3013.
  • the plurality of second conductive blocks 302 include one second horizontal conductive sub-block 3021 and Second vertical conductive sub-blocks 3022, the plurality of second vertical conductive sub-blocks 3022 are vertically connected to the second horizontal conductive sub-blocks 3021 and form a plurality of second gap regions 3023, the number of the first gap regions 3013
  • the number of the plurality of second vertical conductive sub-blocks 3022 is the same, the number of the plurality of second gap regions 3023 is the same as the number of the first vertical conductive sub-blocks 3012, and each first vertical conductive sub-block 3012 is provided In a second slot area 3023, each second vertical conductive sub-block 3022 is disposed in a first slot area 3013.
  • first conductive block 301 and the second conductive block 302 in addition to the relatively regular spacing distribution described above, also include an irregular spacing distribution, for example, as shown in FIG. 5, the first conductive block 301 and the second conductive block 301
  • the conductive blocks 302 are in a zigzag manner with parallel edges. You only need to keep the edges of the first conductive block 301 and the second conductive block 302 parallel and close to each other, but at the same time they cannot be tightly attached, so that the user can touch The two are connected.
  • the other touch areas for example, the formation of the two conductive blocks in the second touch area 102 and the third touch area 103 are similar to this, and will not be repeated here.
  • the button structure may further include a first electrode 40 and a second electrode 50.
  • the first conductive block 301 corresponding to the first touch area 101 may be The first electrode 40 is electrically connected to the main control circuit 20, and the second conductive block 302 can be electrically connected to the main control circuit 20 through the second electrode 50. As shown in FIG.
  • the aforementioned first conductive trace 305, second conductive trace 306, and third conductive trace 309 can be electrically connected to the power supply 201 through the first electrode 40, the second conductive block 302, the fourth conductive block 304, and the sixth conductive block 308 can all be connected to the microcontroller 202 through the second electrode 50,
  • the second conductive block 302, the fourth conductive block 304, and the sixth conductive block 308 can be specifically connected to the AD port of the microcontroller 202.
  • the present application also provides a body fat scale, which includes the aforementioned button structure, and is used to measure the body fat and weight of a user.
  • the button structure in the body fat scale has been described in the previous article, so I won't repeat it here.
  • the first conductive block 301 and the second conductive block 302 are arranged at intervals in the first touch area 101 of the substrate 10, so that when the user touches the button in the first touch area 101 , The first conductive block 301 and the second conductive block 302 are turned on and generate a first turn-on signal, so that the main control circuit 20 recognizes the first turn-on signal and then recognizes the key operation, which solves the problem of the existing body fat scale function keys
  • the use of touch panels and touch recognition chips has the problems of high cost and complicated installation procedures.
  • the first conductive blocks 301 and second conductive blocks 302 distributed at intervals can realize the function of touch buttons and reduce the cost of touch panels and touch recognition chips. Materials, reduce installation procedures, and greatly save costs.
  • orientation or positional relationship indicated by the terms “inner” and “outer” are based on the orientation or positional relationship shown in the drawings, or are usually placed when the application product is used.
  • the orientation or positional relationship is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the application.
  • first”, “second”, etc. are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.
  • connection should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection.
  • the connection can also be indirectly connected through an intermediate medium, and it can be the internal communication between two components.

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Abstract

一种按键结构和体脂秤，该按键结构包括基板（10）、导电层（30）和主控电路（20）。基板（10）包括第一触摸区域（101），导电层（30）设置于所述基板（10）上，所述导电层（30）包括第一导电块（301）和第二导电块（302）。主控电路（20）分别与所述第一导电块（301）以及所述第二导电块（302）电连接。其中，所述第一导电块（301）以及所述第二导电块（302）间隔分布于所述第一触摸区域（101），以使得用户触摸所述第一触摸区域（101）时所述第一导电块（301）以及所述第二导电块（302）导通并生成第一导通信号传递给所述主控电路（20）。

Description

按键结构和体脂秤
相关申请的交叉引用
本申请要求2020年3月31日提交的申请号为CN 202020451757.3的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及触摸按键技术领域，具体而言，涉及一种按键结构和体脂秤。
背景技术
目前，体脂秤的功能按键通常需要在承载玻璃下表面贴装触摸板并在触摸板上设置触摸识别芯片，进而进行按键识别，而设置触摸板和触摸识别芯片存在着成本高且安装工序复杂的问题。
发明内容
根据本申请的各种实施例，提供一种按键结构，包括：
基板，包括第一触摸区域；
导电层，设置于所述基板上，所述导电层包括第一导电块和第二导电块；
主控电路，分别与所述第一导电块以及所述第二导电块电连接；
其中，所述第一导电块以及所述第二导电块间隔分布于所述第一触摸区域，以使得用户触摸所述第一触摸区域时所述第一导电块以及所述第二导电块导通并生成第一导通信号传递给所述主控电路。
在其中一个实施例中，所述主控电路包括电阻、电源以及微控制器，所述基板还包括第二触摸区域，所述导电层还包括第三导电块、第四导电块、第一导电走线以及第二导电走线，所述第一导电走线与所述第一触摸区域对应，所述第二导电走线与所述第二触摸区域对应，所述第一导电走线和所述第二导电走线的阻值不同；
所述第三导电块和所述第四导电块间隔分布于所述第二触摸区域，以使得用户触摸所述第二触摸区域时所述第三导电块以及所述第四导电块导通并生成第二导通信号传递给所述主控电路；所述第一导电块通过所述第一导电走线连接所述电源，所述第三导电块通过所述第二导电走线连接所述电源，所述第二导电块和所述第四导电块均与所述电阻的第一端连接，所述电阻的第二端接地，所述第二导电块和所述第四导电块均与所述微控制器电连接。
在其中一个实施例中，所述第一导电走线和所述第二导电走线的长度相同但宽度不同。
在其中一个实施例中，所述第一导电走线和所述第二导电走线的宽度相同但长度不同。
在其中一个实施例中，所述第一导电走线和所述第二导电走线的长度不同且宽度不同。
在其中一个实施例中，所述基板还包括第三触摸区域，所述导电层还包括第五导电块、第六导电块以及第三导电走线，所述第三导电走线与所述第三触摸区域对应，所述第一导电走线、所述第二导电走线以及所述第三导电走线的阻值不同；
所述第五导电块和所述第六导电块间隔分布于所述第三触摸区域，以使得用户触摸所述第三触摸区域时所述第五导电块以及所述第六导电块导通并生成第三导通信号传递给所述主控电路；所述第五导电块通过所述第三导电走线连接所述电源，所述第六导电块与所述电阻的第一端连接，所述第六导电块与所述微控制器电连接。
在其中一个实施例中，所述按键结构还包括第一电极和第二电极，所述第一导电走线和所述第二导电走线通过所述第一电极与所述电源连接，所述第二导电块和所述第四导电块通过所述第二电极与所述微控制器连接。
在其中一个实施例中，所述按键结构还包括第一电极和第二电极，所述第一导电块通过所述第一电极与所述主控电路连接，所述第二导电块与所述第二电极与所述主控电路连接。
在其中一个实施例中，所述主控电路包括电阻、电源以及微控制器，所述第一导电块与所述电源连接，所述第二导电块与所述电阻的第一端连接，所述电阻的第二端接地，所述第二导电块与所述微控制器电连接。
在其中一个实施例中，所述第一导电块包括多个第一导电子块，所述第二导电块包括多个第二导电子块，所述多个第一导电子块与多个第二导电子块交互间隔设置。
在其中一个实施例中，所述多个第一导电子块包括一个第一水平导电子块和多个第一竖直导电子块，所述多个第一竖直导电子块间隔垂直连接于所述第一水平导电子块并形成多个第一缝隙区域，所述多个第二导电子块包括一个第二水平导电子块和多个第二竖直导电子块，所述多个第二竖直导电子块间隔垂直连接于所述第二水平导电子块并形成多个第二缝隙区域，所述多个第一缝隙区域的数量与所述多个第二竖直导电子块的数量相同，所述多个第二缝隙区域的数量与所述多个第一竖直导电子块的数量相同，每一个所述第一竖直导电子块设置于一个所述第二缝隙区域内，每一个所述第二竖直导电子块设置于一个所述第一缝隙区域内。
在其中一个实施例中，所述第一导电块和所述第二导电块间隔平行设置，以使得用户触摸所述第一触摸区域时将所述第一导电块以及所述第二导电块导通。
在其中一个实施例中，所述第一导电块和所述第二导电块为边缘相互平行的锯齿形导电块。
在其中一个实施例中，所述第一导电块和所述第二导电块均采用氧化铟锡、导电胶、导电布及导电皮革中的至少一种材料制成。
本申请一实施例还提供一种体脂秤，所述体脂秤包括上述的按键结构。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其他特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
图1为本申请一实施例提供的按键结构的示意图；
图2为本申请另一实施例提供的按键结构的示意图；
图3为本申请再一实施例提供的按键结构的示意图；
图4为本申请又一实施例提供的按键结构的示意图；
图5为本申请另一实施例提供的按键结构的示意图。
附图标记：
10-基板；101-第一触摸区域；102-第二触摸区域；103-第三触摸区域；20-主控电路；201-电源；202-微控制器；30-导电层；301-第一导电块；3011-第一水平导电子块；3012-第一竖直导电子块；3013-第一缝隙区域；302-第二导电块；3021-第二水平导电子块；3022-第二竖直导电子块；3023-第二缝隙区域；303-第三导电块；304-第四导电块；305-第一导电走线；306-第二导电走线；307-第五导电块；308-第六导电块；309-第三导电走线；R4-电阻；40-第一电极；50-第二电极。
为了更好地描述和说明这里公开的那些申请的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的申请、目前描述的实施例和/或示例以及目前理解的那些申请的最佳模式中的任何一者的范围的限制。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
如图1所示，本申请一实施例提供一种按键结构，该按键结构可应用于体脂秤上，该按键结构具体包括：基板10，该基板10上包括第一触摸区域101，该第一触摸区域101表示用户在使用时可进行触摸的区域范围；主控电路20。从图1和图2均可以看出，该主控电路20没有设置在该具有第一触摸区域101的基板10上，该主控电路20可设置在该基板10的下方，可位于该体脂秤的内部；导电层30，该导电层30也设置在该基板10上，并且该导电层30包括第一导电块301和第二导电块302，该主控电路20分别与该第一导电块301和第二导电块302电连接。
其中，前述的主控电路20分别与该第一导电块301和第二导电块302电连接包含两层含义：第一，主控电路20与第一导电块301和第二导电块302直接连接，表示第一导电块301与主控电路20之间、第二导电块302与主控电路20之间没有包含其他的元器件；第二，主控电路20与该第一导电块301和第二导电块302间接连接(第一导电块301与主控电路20之间、第二导电块302与主控电路20之间可存在其他电气元器件)，例如该第一导电块301可通过电极与该主控电路20连接，电气元器件除了电极以外，还可以为电阻等元器件。
其中，该第一导电块301与该第二导电块302间隔分布并设置在该第一触摸区域101对应的基板10上，当用户在对该第一触摸区域101进行触摸时，可使得该第一导电块301和第二导电块302导通并生成第一导通信号传输给该主控电路20。
具体的，上述设计的按键结构在进行工作时，例如，用户通过手指对该第一触摸区域101进行触摸时，第一导电块301、用户手指以及第二导电块302形成通路，进而生成第一导通信号传输给该主控电路20，使得主控电路20接收到第一导电块301与第二导电块302连通的第一导通信号，主控电路20即可根据接收到的第一导通信号识别出该第一触摸区域101被触摸，也就是在第一触摸区域101产生了按键操作。
在本实施例的一个可选实施方式中，如图2所示，该主控电路20包括电阻R4、电源201 以及微控制器202，该基板10还包括第二触摸区域102，该导电层30还包括第三导电块303、第四导电块304、第一导电走线305以及第二导电走线306，该第一导电走线305与该第一触摸区域101对应，该第二导电走线306与该第二触摸区域102对应，第一导电走线305与第二导电走线306由于长度和宽度的不同，进而形成不同阻值的电阻，该第三导电块303以及第四导电块304也间隔分布设置在该第二触摸区域102，在用户触摸该第二触摸区域102时该第三导电块303和第四导电块304导通，进而生成第二导通信号传输给主控电路20。
前述主控电路20与第一导电块301之间、主控电路20与第二导电块302之间可间接连接(第一导电块301与主控电路20之间、第二导电块302与主控电路20之间可存在其他电气元器件)，在主控电路20为上述结构的基础上，主控电路20与第一导电块301的具体连接方式可为该第一导电块301通过第一导电走线305与该主控电路20中的电源201电连接；前述主控电路20与第一导电块301之间、主控电路20与第二导电块302之间可直接连接(第一导电块301与主控电路20之间、第二导电块302与主控电路20之间没有其他电气元器件)，在主控电路20为上述结构的基础上，主控电路20与第二导电块302连接方式可为第二导电块302与该主控电路20中的电阻R4的第一端连接，同时该第二导电块302与该电阻R4的连接端还与该主控电路20中的微控制器202电连接，该电阻R4的第二端接地。同理，第二触摸区域102对应的第三导电块303与主控电路20的连接方式具体为：该第三导电块303通过第二导电走线306也与该主控电路20中的电源201电连接，第二导电块302与该电阻R4的第一端连接，同时，该第四导电块304与该电阻R4的连接端还与该微控制器202电连接。
具体的，上述设计的按键结构在进行工作时，假设用户使用手指触摸了第一触摸区域101或第二触摸区域102，使得第一触摸区域101中的第一导电块301和第二导电块302导通或第二触摸区域102中的第三导电块303或第四导电块304导通，由于第一触摸区域101中的第一导电走线305和第二触摸区域102中的第二导电走线306的电阻阻值不同，进而使得第一触摸区域101和第二触摸区域102导通时与电阻R4形成的分压不同进而产生的第一导通信号和第二导通信号里两个触摸区域的电压大小不同，在微控制器202接收到某一导通信号之后，微控制器202进而根据接收到的导通信号中的电压大小来判断是第一触摸区域101接通还是第二触摸区域102接通，进而可识别是哪个触摸区域也就是开关被用户触碰。其中，每个触摸区域中导电走线形成的电阻可以提前测量得知，电源201的电压在设置时可以提前得知，电阻R4的电阻可以提前得知，这样即可获得第一导电走线305与电阻R4的分压大小以及第二导电走线306与电阻R4的分压大小，进而将分压大小与对应的触摸区域的关系存储在微控制器202的存储单元中，在微控制器202接收到某一导通信号之后，即可确定出是哪一触摸区域被触碰。
在上述设计的按键结构中，通过第一触摸区域101中的第一导电走线305和第二触摸区域102中阻值不同的第二导电走线306，使得利用阻值不同的导电走线与电阻R4的分压不同来识别被触摸的区域，进而使得本申请的按键结构在前述的节约成本得到基础上，可设置多个按键，提高了本申请方案按键结构的可用性。
在本实施例的可选实施方式中，除了前述的设置两个触摸区域以外，本申请还可以设置三个或三个以上的触摸区域，也就是设置三个或三个以上开关的形式，例如，当为三个触摸区域时，如图3所示，该基板10还包括第三触摸区域103，该导电层30还包括第五导电块307、第六导电块308以及第三导电走线309，该第三导电走线309与该第三触摸区域103对应，该第一导电走线305、第二导电走线306以及第三导电走线309的阻值不同，该第五导电块307和第六导电块308也间隔分布并设置在该第三触摸区域103对应的基板10上，当第五导电块307和第六导电块308导通时可产生第三导通信号，第五导电块307通过第三导电走线309与该电源201连接，第六导电块308与第四导电块304以及第二导电块302连接电阻R4的同一端，第六导电块308也与该微控制器202连接。
这样，可以根据前述的方式，由于第一导电走线305、第二导电走线306以及第三导电走线309的阻值不同，进而每个导电走线与电阻R4的分压不同，微控制器202可根据被触 摸区域传输的导通信号获得导通信号中触摸区域的分压电压大小进而识别是哪个触摸区域被触摸，进而识别是哪个开关被触发。
在本实施例的可选实施方式中，前述的第一导电走线305、第二导电走线306、第三导电走线309以及第一导电块301、第二导电块302、第三导电块303、第四导电块304以及第五导电块307和第六导电块308的材料具体均可为氧化铟锡ITO，除了氧化铟锡ITO外还可以为导电胶、导电布以及导电皮革等可以在基板10表面用于接触人体测量阻抗的材质。其中，第一导电走线305、第二导电走线306以及第三导电走线309的阻值互不相同，具体可为：第一导电走线305、第二导电走线306以及第三导电走线309三根导电走线的长度相同，但宽度互不相同；还可以为：第一导电走线305、第二导电走线306以及第三导电走线309三根导电走线的宽度相同但其长度互不相同；还可以为：第一导电走线305、第二导电走线306以及第三导电走线309的长度和宽度均不相同，进而形成阻值互不相同的导电走线，具体的，如图4所示，第一导电走线305、第二导电走线306以及第三导电走线309可为如图4所示形状的不同阻值的导电走线。其中，第一导电走线305、第二导电走线306、第三导电走线309的宽度依次增大。
在本实施例的可选实施方式中，一个触摸区域内两个导电块的间隔分布方式具体可有多种形式，包含规则形状的间隔分布形式和非规则形状的间隔分布形式，以下由于每个触摸区域内两个导电块的分布形式可做相同处理，因此以下使用第一触摸区域101中的第一导电块301和第二导电块302为例对触摸区域内两个导电块的分布形式进行说明，如图4所示，具体形成方式可如下：
该第一导电块301和第二导电块302的数量可为多个，该多个第一导电块301包括一个第一水平导电子块3011和多个第一竖直导电子块3012，该多个第一竖直导电子块3012间隔竖直连接于该第一水平导电子块3011并形成多个第一缝隙区域3013，多个第二导电块302包括一个第二水平导电子块3021和多个第二竖直导电子块3022，该多个第二竖直导电子块3022垂直连接于该第二水平导电子块3021并形成多个第二缝隙区域3023，该第一缝隙区域3013的数量与多个第二竖直导电子块3022的数量相同，多个第二缝隙区域3023的数量与多个第一竖直导电子块3012的数量相同，每一个第一竖直导电子块3012设置于一个第二缝隙区域3023内，每一个第二竖直导电子块3022设置于一个第一缝隙区域3013内。这样，由于竖直导电子块与缝隙区域之间间隔很小距离，用户在对第一触摸区域101进行触摸时，用户的手指成为连接第一导电块301和第二导电块302的媒介，进而使得第一导电块301和第二导电块302导通。
另外，第一导电块301和第二导电块302除了上述所描述的较为规则的间隔分布方式以外，还包括非规则的间隔分布方式，例如，如图5所示第一导电块301和第二导电块302为边缘相互平行的锯齿形的方式，只需保持第一导电块301和第二导电块302的边缘平行设置并且靠近，但同时又不能贴紧，使得用户用手触碰时能够使两者连接。其余触摸区域，例如第二触摸区域102以及第三触摸区域103中两个导电块的形成形式与此类似，在这里不再进行赘述。
在本实施例的可选实施方式中，该按键结构还可以包括第一电极40和第二电极50，当只有第一触摸区域101时，该第一触摸区域101对应的第一导电块301可通过该第一电极40与该主控电路20电连接，第二导电块302可通过该第二电极50与该主控电路20电连接。如图4所示，当有多个触摸区域也就是多个开关时，以前述的三个触摸区域为例，前述的第一导电走线305、第二导电走线306以及第三导电走线309都可通过该第一电极40与该电源201电连接，该第二导电块302、第四导电块304以及第六导电块308都可通过该第二电极50与该微控制器202连接，其中，该第二导电块302、第四导电块304以及第六导电块308具体可与该微控制器202的AD端口连接。
本申请还提供一种体脂秤，该体脂秤包括前述的按键结构，用于对用户的体脂体重等进行测量。体脂秤中的按键结构在前文中已经进行了描述，在这里不再赘述。
工业实用性
在上述设计的按键结构及体脂秤中，通过在基板10的第一触摸区域101设置间隔分布的第一导电块301和第二导电块302，使用户在第一触摸区域101进行按键触摸时，第一导电块301和第二导电块302导通并产生第一导通信号进而使得主控电路20对第一导通信号进行识别进而识别出按键操作，解决了现有体脂秤功能按键采用触摸板和触摸识别芯片存在的成本高且安装工序复杂的问题，使得通过间隔分布的第一导电块301和第二导电块302即能实现触摸按键的功能，缩减触摸板和触摸识别芯片的物料，减少安装工序，极大地节约成本。
在本申请的描述中，需要说明的是，术语“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是该申请产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
还需要说明的是，除非另有明确的规定和限定，术语“设置”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
以上所述仅为本申请的实施例而已，并不用于限制本申请的保护范围，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (15)

  1. 一种按键结构，其中，包括：
    基板，包括第一触摸区域；
    导电层，设置于所述基板上，所述导电层包括第一导电块和第二导电块；
    主控电路，分别与所述第一导电块以及所述第二导电块电连接；
    其中，所述第一导电块以及所述第二导电块间隔分布于所述第一触摸区域，以使得用户触摸所述第一触摸区域时所述第一导电块以及所述第二导电块导通并生成第一导通信号传递给所述主控电路。
  2. 根据权利要求1所述的按键结构，其中，所述主控电路包括电阻、电源以及微控制器，所述基板还包括第二触摸区域，所述导电层还包括第三导电块、第四导电块、第一导电走线以及第二导电走线，所述第一导电走线与所述第一触摸区域对应，所述第二导电走线与所述第二触摸区域对应，所述第一导电走线和所述第二导电走线的阻值不同；
    所述第三导电块和所述第四导电块间隔分布于所述第二触摸区域，以使得用户触摸所述第二触摸区域时所述第三导电块以及所述第四导电块导通并生成第二导通信号传递给所述主控电路；所述第一导电块通过所述第一导电走线连接所述电源，所述第三导电块通过所述第二导电走线连接所述电源，所述第二导电块和所述第四导电块均与所述电阻的第一端连接，所述电阻的第二端接地，所述第二导电块和所述第四导电块均与所述微控制器电连接。
  3. 根据权利要求2所述的按键结构，其中，所述第一导电走线和所述第二导电走线的长度相同但宽度不同。
  4. 根据权利要求2所述的按键结构，其中，所述第一导电走线和所述第二导电走线的宽度相同但长度不同。
  5. 根据权利要求2所述的按键结构，其中，所述第一导电走线和所述第二导电走线的长度不同且宽度不同。
  6. 根据权利要求2至5中任一项所述的按键结构，其中，所述基板还包括第三触摸区域，所述导电层还包括第五导电块、第六导电块以及第三导电走线，所述第三导电走线与所述第三触摸区域对应，所述第一导电走线、所述第二导电走线以及所述第三导电走线的阻值不同；
    所述第五导电块和所述第六导电块间隔分布于所述第三触摸区域，以使得用户触摸所述第三触摸区域时所述第五导电块以及所述第六导电块导通并生成第三导通信号传递给所述主控电路；所述第五导电块通过所述第三导电走线连接所述电源，所述第六导电块与所述电阻的第一端连接，所述第六导电块与所述微控制器电连接。
  7. 根据权利要求2至6中任一项所述的按键结构，其中，所述按键结构还包括第一电极和第二电极，所述第一导电走线和所述第二导电走线通过所述第一电极与所述电源连接，所述第二导电块和所述第四导电块通过所述第二电极与所述微控制器连接。
  8. 根据权利要求1至7中任一项所述的按键结构，其中，所述按键结构还包括第一电极和第二电极，所述第一导电块通过所述第一电极与所述主控电路连接，所述第二导电块与所 述第二电极与所述主控电路连接。
  9. 根据权利要求1至8中任一项所述的按键结构，其中，所述主控电路包括电阻、电源以及微控制器，所述第一导电块与所述电源连接，所述第二导电块与所述电阻的第一端连接，所述电阻的第二端接地，所述第二导电块与所述微控制器电连接。
  10. 根据权利要求1至9中任一项所述的按键结构，其中，所述第一导电块包括多个第一导电子块，所述第二导电块包括多个第二导电子块，所述多个第一导电子块与多个第二导电子块交互间隔设置。
  11. 根据权利要求10所述的按键结构，其中，所述多个第一导电子块包括一个第一水平导电子块和多个第一竖直导电子块，所述多个第一竖直导电子块间隔垂直连接于所述第一水平导电子块并形成多个第一缝隙区域，所述多个第二导电子块包括一个第二水平导电子块和多个第二竖直导电子块，所述多个第二竖直导电子块间隔垂直连接于所述第二水平导电子块并形成多个第二缝隙区域，所述多个第一缝隙区域的数量与所述多个第二竖直导电子块的数量相同，所述多个第二缝隙区域的数量与所述多个第一竖直导电子块的数量相同，每一个所述第一竖直导电子块设置于一个所述第二缝隙区域内，每一个所述第二竖直导电子块设置于一个所述第一缝隙区域内。
  12. 根据权利要求1至11中任一项所述的按键结构，其中，所述第一导电块和所述第二导电块间隔平行设置，以使得用户触摸所述第一触摸区域时将所述第一导电块以及所述第二导电块导通。
  13. 根据权利要求12所述的按键结构，其中，所述第一导电块和所述第二导电块为边缘相互平行的锯齿形导电块。
  14. 根据权利要求1至13中任一项所述的按键结构，其中，所述第一导电块和所述第二导电块均采用氧化铟锡、导电胶、导电布及导电皮革中的至少一种材料制成。
  15. 一种体脂秤，其中，所述体脂秤包括权利要求1至14中任一项所述的按键结构。
PCT/CN2020/119643 2020-03-31 2020-09-30 按键结构和体脂秤 WO2021196550A1 (zh)

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