WO2020052477A1 - Electromagnetic induction device - Google Patents

Electromagnetic induction device Download PDF

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Publication number
WO2020052477A1
WO2020052477A1 PCT/CN2019/104271 CN2019104271W WO2020052477A1 WO 2020052477 A1 WO2020052477 A1 WO 2020052477A1 CN 2019104271 W CN2019104271 W CN 2019104271W WO 2020052477 A1 WO2020052477 A1 WO 2020052477A1
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WO
WIPO (PCT)
Prior art keywords
magnetic element
bracket body
bottom bracket
magnetic
electromagnetic induction
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PCT/CN2019/104271
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French (fr)
Chinese (zh)
Inventor
刘宁
黎振东
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东莞璟阳电子科技有限公司
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Publication of WO2020052477A1 publication Critical patent/WO2020052477A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H01H13/705—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches characterised by construction, mounting or arrangement of operating parts, e.g. push-buttons or keys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/84—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback
    • H01H13/85—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by ergonomic functions, e.g. for miniature keyboards; characterised by operational sensory functions, e.g. sound feedback characterised by tactile feedback features

Definitions

  • the utility model relates to keyboard magnetic keys, in particular to an electromagnetic induction device.
  • the keyboard is the most common and main input device of a computer. You can input English letters, numbers, punctuation marks, etc. into the computer by typing on the keyboard, so as to issue commands to the computer and enter data.
  • the keyboard is divided into a mechanical keyboard, a thin-film keyboard, a conductive silicone keyboard, and a capacitive keyboard. Among them, the mechanical keyboard has a strong sense of rhythm, and it will not be changed by long-term use. It is loved by gamers.
  • paragraph feeling and pressure of mechanical keyboards mainly rely on using different axes to change the paragraph feeling, such as the black, red, green and tea axes commonly used in the market.
  • the black axis has the strongest sense of paragraph; the red axis basically has no sense of paragraph; the green axis has a small sense of paragraph, but the level is obvious, with a clear rhythmic sound; the tea axis is similar to the green axis, but the level is not strong.
  • you want to feel different you must buy a mechanical keyboard with different color axes. If you do not know your preferences, it is easy to buy a mechanical keyboard that is not suitable for you, which will cause users to repeat the purchase and waste costs. It is also impossible to define the paragraph sense and strength of the mechanical axis according to your own preferences.
  • the purpose of the utility model is to solve the above defects and provide an electromagnetic induction device, which changes the impact force of the magnet by controlling the coil current, thereby changing the intensity of the segmental feeling of the mechanical shaft.
  • An electromagnetic induction device is characterized in that it comprises a bottom bracket body, a return spring and a third magnetic element.
  • the bottom bracket body is provided with a baffle for dividing the bottom bracket body into two sections, and at the top end of the upper section of the bottom bracket body.
  • a first magnetic element is provided, and a second magnetic element capable of moving up and down between the first magnetic element and the baffle is provided at the lower end of the upper section of the bottom bracket body.
  • the lower section of the bottom bracket body is provided with a return spring and a third magnetic member. Element, the bottom bracket body can drive the first magnetic element to move up and down, and the third magnetic element is an energized coil whose magnitude of energized current can be adjusted.
  • a magnetic force is generated between the first magnetic element and the second magnetic element or a repulsive force is generated between the second magnetic element and the third magnetic element, so that the second magnetic element is held on the upper part of the bottom bracket body;
  • a magnetic force is generated between the second magnetic element and the third magnetic element and is greater than the magnetic force between the first magnetic element and the second magnetic element.
  • the second magnetic element moves toward the bottom and strikes along the center axis body.
  • the baffle plate on the bottom of the bottom bracket body creates a sense of depression; adjusting the forward and reverse currents of the coil can adjust the magnetic force between the second magnetic element and the third magnetic element, thereby changing the intensity of the paragraph sense and Downforce.
  • the first magnetic element is a soft magnetic material
  • the second magnetic element is a magnet
  • the third magnetic element is an energized coil
  • the first magnetic element is an electromagnet
  • the second magnetic element is a magnet
  • the third magnetic element is an energized coil
  • the first magnetic element is a soft magnetic material
  • the second magnetic element is a magnet
  • the third magnetic element is an electromagnet
  • the first magnetic element is a coil
  • the second magnetic element is a magnet
  • the third magnetic element is an electromagnet
  • the beneficial effect produced by the present utility model is that a attracting magnetic force is generated between the first magnetic element and the second magnetic element of the present utility model, and adjusting the forward and reverse energizing current magnitudes of the coil can adjust the second
  • the magnitude of the magnetic force between the magnetic element and the third magnetic element changes the intensity of the paragraph feeling and the downward pressure; adjusting the magnetic force of the first magnetic element and the second magnetic element can have a more layered feeling after a stronger paragraph feeling.
  • FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention.
  • FIG. 2 is an exploded view of the structure of the first embodiment of the utility model.
  • 1 is a bottom bracket body
  • 2 is a baffle
  • 3 is a first magnetic element
  • 4 is a second magnetic element
  • 5 is a third magnetic element
  • 6 is a return spring.
  • an electromagnetic induction device in this embodiment includes a bottom bracket body 1, and the bottom bracket body 1 is provided with a baffle 2 for dividing the bottom bracket body 1 into two sections.
  • a first magnetic element 3 is provided at the top end of the upper section of the bottom bracket body 1
  • a second magnetic element 4 is provided at the bottom end of the upper section of the bottom bracket body 1 and can move up and down between the first magnetic member 3 and the baffle 2.
  • the lower section of the shaft body 1 is sleeved with a return spring 6 and a third magnetic element 5.
  • the bottom shaft body 1 can drive the first magnetic element 3 to move up and down.
  • the third magnetic element 5 is an energized current whose current can be adjusted.
  • the first magnetic element 3 is a soft magnetic material
  • the second magnetic element 4 is a magnet
  • the third magnetic element 5 is an energized coil.
  • a suction force is generated between the first magnetic element and the second magnetic element or a repulsive force is generated between the second magnetic element 4 and the third magnetic element 5, so that the second magnetic element 4 is held on the bottom bracket body 1
  • a suction force is generated between the second magnetic element 4 and the third magnetic element 5 and is larger than that between the first magnetic element 3 and the second magnetic element 4, and the second magnetic element 4
  • the central axis body 1 moves toward the bottom and hits the baffle 2 provided on the central axis body 1 to generate a sense of depression. Adjusting the forward and reverse current of the coil can adjust the second magnetic element and the third magnetic element.
  • the magnitude of the magnetic force which changes the intensity of the paragraph feeling and the degree of downforce.
  • An electromagnetic induction device of this embodiment is different from the first embodiment in that the first magnetic element is an electromagnet, the second magnetic element is a magnet, and the third magnetic element is an energized coil.
  • An electromagnetic induction device of this embodiment is different from the first embodiment in that the first magnetic element is a soft magnetic material, the second magnetic element is a magnet, and the third magnetic element is an electromagnet.
  • An electromagnetic induction device of this embodiment is different from the first embodiment in that the first magnetic element is a coil, the second magnetic element is a magnet, and the third magnetic element is an electromagnet.

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  • Electromagnets (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

Disclosed is an electromagnetic induction device, comprising a bottom bracket body (1) provided with a baffle plate (2) for dividing the bottom bracket body (1) into two segments. A first magnetic element (3) is arranged at the top end of the upper segment of the bottom bracket body (1), a second magnetic element (4) capable of up-and-down movement between the first magnetic element (3) and the baffle plate (2) is arranged at the lower end of the upper segment of the bottom bracket body (1), and a return spring (6) and a third magnetic element (5) are fitted on the lower segment of the bottom bracket body (1). The third magnetic element (5) is an electric coil with an adjustable energizing current. The magnitude of magnetic force between the second magnetic element (4) and the third magnetic element (5) can be adjusted by adjusting the forward and reverse energizing current of the electric coil, thereby changing the intensity of tactile bump and the pressing force.

Description

一种电磁感应装置Electromagnetic induction device 技术领域Technical field
本实用新型涉及键盘磁力按键，特别涉及一种电磁感应装置。The utility model relates to keyboard magnetic keys, in particular to an electromagnetic induction device.
背景技术Background technique
键盘是计算机最常用也是最主要的输入设备，通过敲击键盘可以将英文字母、数字、标点符号等输入到计算机中，从而向计算机发出命令、输入数据等。键盘分为机械键盘、薄膜键盘、导电硅胶键盘、电容键盘，其中以机械键盘节奏感强，长期使用手感不会改变深受游戏玩家喜爱。The keyboard is the most common and main input device of a computer. You can input English letters, numbers, punctuation marks, etc. into the computer by typing on the keyboard, so as to issue commands to the computer and enter data. The keyboard is divided into a mechanical keyboard, a thin-film keyboard, a conductive silicone keyboard, and a capacitive keyboard. Among them, the mechanical keyboard has a strong sense of rhythm, and it will not be changed by long-term use. It is loved by gamers.
目前，机械键盘段落感和压力主要靠采用不同轴来改变段落感，如市面上常用的黑、红、青、茶四种轴。黑轴段落感最强；红轴基本上没有段落感；青轴段落感比较小，但层次明显，带有明显的节奏声音；茶轴段落感与青轴差不多，只是层次感不强。如果想感受不同的手感，用户必须购买不同颜色轴的机械键盘。如果不清楚自己的喜好很容易购买不适合自己的机械键盘，从而造成用户重复购买，浪费成本。同样也不能按照自己喜好定义机械轴的段落感和力度At present, paragraph feeling and pressure of mechanical keyboards mainly rely on using different axes to change the paragraph feeling, such as the black, red, green and tea axes commonly used in the market. The black axis has the strongest sense of paragraph; the red axis basically has no sense of paragraph; the green axis has a small sense of paragraph, but the level is obvious, with a clear rhythmic sound; the tea axis is similar to the green axis, but the level is not strong. If you want to feel different, you must buy a mechanical keyboard with different color axes. If you do not know your preferences, it is easy to buy a mechanical keyboard that is not suitable for you, which will cause users to repeat the purchase and waste costs. It is also impossible to define the paragraph sense and strength of the mechanical axis according to your own preferences.
实用新型内容Utility model content
本实用新型的目的是解决以上缺陷，提供一种电磁感应装置，通过对线圈电流控制改变磁铁撞击力度，从而改变机械轴的段落感强度。The purpose of the utility model is to solve the above defects and provide an electromagnetic induction device, which changes the impact force of the magnet by controlling the coil current, thereby changing the intensity of the segmental feeling of the mechanical shaft.
本实用新型的目的是通过以下方式实现的：The purpose of the present invention is achieved by:
一种电磁感应装置，其特征在于：包括中轴本体，复位弹簧和第三磁性元件，所述中轴本体上设有将中轴本体区分为两段的挡片，在中轴本体的上段顶端设有第一磁性元件，中轴本体的上段下端设有可在第一磁性元件和挡板之间上下运动的第二磁性元件，所述中轴本体的下段套设有复位弹簧和第三磁性元件，所述中轴本体可带动第一磁性元件上下运动，，所述第三磁性元件为通电电流大小能够调节的通电线圈。通电线圈未通电后或反向通电，第一磁性元件和第二磁性元件之间产生磁力或第二磁性元件与第三磁性元件产生斥力，使第二磁性元件保持在中轴本体的上部；所述通电线圈正向通电后，第二磁性元件和第三磁性元件之间产生磁力并大于第一磁性元件与第二磁性元件之间的磁力，第二磁性元件延中轴本体向底部运动并撞击设在中轴本体上的挡板，产生下压段落感；调节线圈的正向和反向通电电流大小能够调节第二磁性元件和第三磁性元件之间的磁力大小，从而改变段落感强度和下压力度。An electromagnetic induction device is characterized in that it comprises a bottom bracket body, a return spring and a third magnetic element. The bottom bracket body is provided with a baffle for dividing the bottom bracket body into two sections, and at the top end of the upper section of the bottom bracket body. A first magnetic element is provided, and a second magnetic element capable of moving up and down between the first magnetic element and the baffle is provided at the lower end of the upper section of the bottom bracket body. The lower section of the bottom bracket body is provided with a return spring and a third magnetic member. Element, the bottom bracket body can drive the first magnetic element to move up and down, and the third magnetic element is an energized coil whose magnitude of energized current can be adjusted. After the energized coil is not energized or reversely energized, a magnetic force is generated between the first magnetic element and the second magnetic element or a repulsive force is generated between the second magnetic element and the third magnetic element, so that the second magnetic element is held on the upper part of the bottom bracket body; After the energizing coil is energized in a positive direction, a magnetic force is generated between the second magnetic element and the third magnetic element and is greater than the magnetic force between the first magnetic element and the second magnetic element. The second magnetic element moves toward the bottom and strikes along the center axis body. The baffle plate on the bottom of the bottom bracket body creates a sense of depression; adjusting the forward and reverse currents of the coil can adjust the magnetic force between the second magnetic element and the third magnetic element, thereby changing the intensity of the paragraph sense and Downforce.
上述说明中，更为优选的方案，所述第一磁性元件为软磁材料，所述第二磁性元件为磁铁，所述第三磁性元件为通电线圈。In the above description, in a more preferred solution, the first magnetic element is a soft magnetic material, the second magnetic element is a magnet, and the third magnetic element is an energized coil.
上述说明中，更为优选的方案，所述第一磁性元件为电磁铁，所述第二磁性元件为磁铁，所述第三磁性元件为通电线圈。In the above description, in a more preferred solution, the first magnetic element is an electromagnet, the second magnetic element is a magnet, and the third magnetic element is an energized coil.
上述说明中，更为优选的方案，所述第一磁性元件为软磁材料，所述第二磁性元件为磁铁，所述第三磁性元件为电磁铁。In the above description, in a more preferred solution, the first magnetic element is a soft magnetic material, the second magnetic element is a magnet, and the third magnetic element is an electromagnet.
上述说明中，更为优选的方案，所述第一磁性元件为线圈，所述 第二磁性元件为磁铁，所述第三磁性元件为电磁铁。In the above description, in a more preferred solution, the first magnetic element is a coil, the second magnetic element is a magnet, and the third magnetic element is an electromagnet.
本实用新型所产生的有益效果是：本实用新型的第一磁性元件和第二磁性元件之间产生相吸的磁力，调节所述线圈的正向和反向通电电流大小能够调节所述第二磁性元件和第三磁性元件之间的磁力大小，从而改变段落感强度和下压力度；调节所述第一磁性元件和第二磁性元件的磁力可以在比较强的段落感后更有层次感。The beneficial effect produced by the present utility model is that a attracting magnetic force is generated between the first magnetic element and the second magnetic element of the present utility model, and adjusting the forward and reverse energizing current magnitudes of the coil can adjust the second The magnitude of the magnetic force between the magnetic element and the third magnetic element changes the intensity of the paragraph feeling and the downward pressure; adjusting the magnetic force of the first magnetic element and the second magnetic element can have a more layered feeling after a stronger paragraph feeling.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本实用新型实施例一的结构示意图；FIG. 1 is a schematic structural diagram of Embodiment 1 of the present invention;
图2为本实用新型实施例一的结构分解图。FIG. 2 is an exploded view of the structure of the first embodiment of the utility model.
图中，1为中轴本体，2为挡片，3为第一磁性元件，4为第二磁性元件，5为第三磁性元件，6为复位弹簧。In the figure, 1 is a bottom bracket body, 2 is a baffle, 3 is a first magnetic element, 4 is a second magnetic element, 5 is a third magnetic element, and 6 is a return spring.
具体实施方式detailed description
下面结合附图与具体实施方式对本实用新型作进一步详细描述。The present invention will be further described in detail below with reference to the drawings and specific embodiments.
本实施例，参照图1～图2。In this embodiment, refer to FIGS. 1 to 2.
实施例一Example one
参照图1～图2，如图所示，本实施例一种电磁感应装置，包括中轴本体1，所述中轴本体1上设有将中轴本体1区分为两段的挡片2，在中轴本体1的上段顶端设有第一磁性元件3，中轴本体1的上段下端设有可在第一磁性元件3和挡板2之间上下运动的第二磁性元件4，所述中轴本体1的下段套设有复位弹簧6和第三磁性元件5，， 所述中轴本体1可带动第一磁性元件3上下运动，所述第三磁性元件5为通电电流大小能够调节的通电线圈，第一磁性元件3为软磁材料，所述第二磁性元件4为磁铁，所述第三磁性元件5为通电线圈。通电线圈未通电后或反向通电，第一磁性元件和第二磁性元件之间产生吸力或第二磁性元件4与第三磁性元件5产生斥力，使第二磁性元件4保持在中轴本体1的上部；所述通电线圈正向通电后，第二磁性元件4和第三磁性元件5之间产生吸力并大于第一磁性元件3与第二磁性元件4之间的吸力，第二磁性元件4延中轴本体1向底部运动并撞击设在中轴本体1上的挡板2，产生下压段落感；调节线圈的正向和反向通电电流大小能够调节第二磁性元件和第三磁性元件之间的磁力大小，从而改变段落感强度和下压力度。1 to 2, as shown in the figure, an electromagnetic induction device in this embodiment includes a bottom bracket body 1, and the bottom bracket body 1 is provided with a baffle 2 for dividing the bottom bracket body 1 into two sections. A first magnetic element 3 is provided at the top end of the upper section of the bottom bracket body 1, and a second magnetic element 4 is provided at the bottom end of the upper section of the bottom bracket body 1 and can move up and down between the first magnetic member 3 and the baffle 2. The lower section of the shaft body 1 is sleeved with a return spring 6 and a third magnetic element 5. The bottom shaft body 1 can drive the first magnetic element 3 to move up and down. The third magnetic element 5 is an energized current whose current can be adjusted. Coil, the first magnetic element 3 is a soft magnetic material, the second magnetic element 4 is a magnet, and the third magnetic element 5 is an energized coil. When the energized coil is not energized or reversely energized, a suction force is generated between the first magnetic element and the second magnetic element or a repulsive force is generated between the second magnetic element 4 and the third magnetic element 5, so that the second magnetic element 4 is held on the bottom bracket body 1 After the energizing coil is energized in the positive direction, a suction force is generated between the second magnetic element 4 and the third magnetic element 5 and is larger than that between the first magnetic element 3 and the second magnetic element 4, and the second magnetic element 4 The central axis body 1 moves toward the bottom and hits the baffle 2 provided on the central axis body 1 to generate a sense of depression. Adjusting the forward and reverse current of the coil can adjust the second magnetic element and the third magnetic element. The magnitude of the magnetic force, which changes the intensity of the paragraph feeling and the degree of downforce.
实施例二Example two
本实施例的一种电磁感应装置，本实施例与实施例一不同的在于：第一磁性元件为电磁铁，所述第二磁性元件为磁铁，所述第三磁性元件为通电线圈。An electromagnetic induction device of this embodiment is different from the first embodiment in that the first magnetic element is an electromagnet, the second magnetic element is a magnet, and the third magnetic element is an energized coil.
实施例三Example three
本实施例的一种电磁感应装置，本实施例与实施例一不同的在于：第一磁性元件为软磁材料，所述第二磁性元件为磁铁，所述第三磁性元件为电磁铁。An electromagnetic induction device of this embodiment is different from the first embodiment in that the first magnetic element is a soft magnetic material, the second magnetic element is a magnet, and the third magnetic element is an electromagnet.
实施例五Example 5
本实施例的一种电磁感应装置，本实施例与实施例一不同的在于：第一磁性元件为线圈，所述第二磁性元件为磁铁，所述第三磁性元件 为电磁铁。An electromagnetic induction device of this embodiment is different from the first embodiment in that the first magnetic element is a coil, the second magnetic element is a magnet, and the third magnetic element is an electromagnet.
以上内容是结合具体的优选实施例对本实用新型所作的进一步详细说明，不能认定本实用新型的具体实施只局限于这些说明。对于本实用新型所属技术领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干简单推演或替换，都应视为本实用新型的保护范围。The above is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions. For a person of ordinary skill in the technical field to which the present utility model belongs, without deviating from the concept of the present utility model, several simple deductions or replacements can be made, which should be regarded as the protection scope of the present utility model.

Claims (5)

  1. 一种电磁感应装置，其特征在于：包括中轴本体，复位弹簧和第三磁性元件，所述中轴本体上设有将中轴本体区分为两段的挡片，在中轴本体的上段顶端设有第一磁性元件，中轴本体的上段下端设有可在第一磁性元件和挡板之间上下运动的第二磁性元件，所述中轴本体的下段套设有复位弹簧和第三磁性元件，所述中轴本体可带动第一磁性元件上下运动，所述第三磁性元件为通电电流大小能够调节的通电线圈。An electromagnetic induction device is characterized in that it comprises a bottom bracket body, a return spring and a third magnetic element. The bottom bracket body is provided with a baffle for dividing the bottom bracket body into two sections, and at the top end of the upper section of the bottom bracket body. A first magnetic element is provided, and a second magnetic element capable of moving up and down between the first magnetic element and the baffle is provided at the lower end of the upper section of the bottom bracket body. The lower section of the bottom bracket body is provided with a return spring and a third magnetic member. Element, the bottom bracket body can drive the first magnetic element to move up and down, and the third magnetic element is an energized coil whose magnitude of energized current can be adjusted.
  2. 根据权利要求1所述的一种电磁感应装置，其特征在于：所述第一磁性元件为软磁材料，所述第二磁性元件为永磁铁，所述第三磁性元件为通电线圈。The electromagnetic induction device according to claim 1, wherein the first magnetic element is a soft magnetic material, the second magnetic element is a permanent magnet, and the third magnetic element is an energized coil.
  3. 根据权利要求1所述的一种电磁感应装置，其特征在于：所述第一磁元件为电磁铁，所述第二磁性元件为磁铁，所述第三磁性元件为通电线圈。The electromagnetic induction device according to claim 1, wherein the first magnetic element is an electromagnet, the second magnetic element is a magnet, and the third magnetic element is an energized coil.
  4. 根据权利要求1所述的一种电磁感应装置，其特征在于：所述第一磁性元件为软磁材料，所述第二磁性元件为磁铁，所述第三磁性元件为电磁铁。The electromagnetic induction device according to claim 1, wherein the first magnetic element is a soft magnetic material, the second magnetic element is a magnet, and the third magnetic element is an electromagnet.
  5. 根据权利要求1所述的一种电磁感应装置，其特征在于：所述第一磁性元件为线圈，所述第二磁性元件为磁铁，所述第三磁性元件为电磁铁。The electromagnetic induction device according to claim 1, wherein the first magnetic element is a coil, the second magnetic element is a magnet, and the third magnetic element is an electromagnet.
PCT/CN2019/104271 2018-09-14 2019-09-04 Electromagnetic induction device WO2020052477A1 (en)

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CN208861860U (en) * 2018-09-14 2019-05-14 东莞璟阳电子科技有限公司 A kind of electromagnetic induction device

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