WO2018205639A1 - 一种多功能台灯 - Google Patents

一种多功能台灯 Download PDF

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Publication number
WO2018205639A1
WO2018205639A1 PCT/CN2017/119690 CN2017119690W WO2018205639A1 WO 2018205639 A1 WO2018205639 A1 WO 2018205639A1 CN 2017119690 W CN2017119690 W CN 2017119690W WO 2018205639 A1 WO2018205639 A1 WO 2018205639A1
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WO
WIPO (PCT)
Prior art keywords
universal joint
rotating
joint
base
support
Prior art date
Application number
PCT/CN2017/119690
Other languages
English (en)
French (fr)
Inventor
谢鑫
Original Assignee
成都捌零科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 成都捌零科技有限公司 filed Critical 成都捌零科技有限公司
Publication of WO2018205639A1 publication Critical patent/WO2018205639A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/002—Table lamps, e.g. for ambient lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
    • F21V23/0471—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor detecting the proximity, the presence or the movement of an object or a person

Definitions

  • the invention relates to the technical field of desk lamp design, in particular to a multifunctional table lamp.
  • Table lamps are a kind of lighting appliances commonly used in daily life, mainly placed on desks and desks.
  • the existing desk lamps have the following disadvantages: (1) The existing desk lamps are mainly turned on or off by the button switch, and the user experience is not good; in addition, there are a few desk lamps provided with a touch screen for the control of the desk lamps, but Only when the operation is performed on the touch screen, the switch of the desk lamp can be realized, and the use experience is poor; (2) the brightness of most of the existing lamps is fixed, and the brightness adjustment cannot be performed according to actual needs; although some desk lamps supporting brightness adjustment are now appeared.
  • the adjustment of the brightness of these lamps is to set a plurality of gear buttons. For each brightness button, the more the brightness is divided, the more gear buttons are needed, which increases the complexity of the lamp structure and the buttons. The user experience of the operation is not good.
  • the object of the present invention is to overcome the deficiencies of the prior art, and to provide a multifunctional table lamp, which realizes brightness adjustment of the table lamp by rotating the rotating casing, and realizes lighting or extinction of the table lamp by approaching or touching the sensing surface of the support seat surface.
  • a multifunctional table lamp comprising a support base and a lamp cap mounted on the support base;
  • the support base includes: an induction component for sensing an object approaching or touching;
  • the lamp cap includes: a support mechanism mounted on the support base;
  • the main circuit board cooperates with the sensing component to form a capacitor proximity switch, and controls lighting or extinguishing of the lighting component according to a signal output by the capacitor proximity switch; receiving rotation information of the rotating housing, and outputting control according to the rotation information
  • the signal to the lighting assembly adjusts the brightness of the illumination.
  • the rotation detecting auxiliary member includes a plurality of magnets, and the plurality of magnets are installed in a radial direction of the rotating housing, and the N magnetic poles and the S magnetic poles of the adjacent magnets are arranged in opposite directions;
  • the rotation detecting member is a Hall sensor.
  • a relative displacement between the magnet and the Hall element is generated, so that the Hall sensor detects a change in the magnetic field line of the magnet, and acquires rotation information of the rotating housing.
  • the support base further includes a first rotating mechanism, a support rod assembly, a second rotating mechanism and a base, the top of the first rotating mechanism is mounted on the supporting mechanism, and the bottom of the first rotating mechanism is mounted on the support At the top of the rod assembly, the bottom of the support rod assembly is mounted on top of the second rotating mechanism, and the bottom of the second rotating mechanism is mounted on the base.
  • the main circuit board is provided with an MCU, a lighting component driving circuit and a first detecting circuit, the lighting component driving circuit is electrically connected to the lighting component, and the first detecting circuit is matched with the sensing component.
  • the capacitor is close to the switch, and the MCU controls on and off of the illumination component driving circuit according to the output signal of the first detecting circuit.
  • the lamp head further includes an effect light component, a back cover panel for sensing an object approaching or contacting, the main circuit board further comprising an effect light component driving circuit and a second detecting circuit, wherein the effect light component driving circuit and the The effect light component is electrically connected, and the second detecting circuit cooperates with the back cover panel to form a capacitor proximity switch, and the MCU controls the on and off of the effect light component driving circuit according to the output signal of the second detecting circuit.
  • the support rod assembly comprises a support rod, a support rod outer sleeve for sensing an object approaching or contacting, the support rod outer sleeve is sleeved outside the support rod, and the support rod outer sleeve is matched with the first detecting circuit
  • a capacitor proximity switch is formed, the top of the support rod is mounted on the first rotating mechanism, and the bottom of the support rod is mounted on the second rotating mechanism.
  • the base comprises a base upper casing and a base lower casing for sensing an object approaching or contacting, the base upper casing cooperates with the first detecting circuit to form a capacitor proximity switch, and the base upper casing is mounted under the base The top of the outer casing.
  • the lamp head further includes a micro switch for turning off or turning on the sensing function, and the micro switch is connected to the MCU signal
  • the first rotating mechanism comprises an upper universal joint club, an upper universal joint cup sleeve, an upper universal joint sleeve washer, a universal joint spring, an upper universal joint fixing block, and an upper universal joint positioning pin.
  • an upper joint spring washer the upper joint sleeve is mounted on a support mechanism, and the upper joint sleeve sleeve washer is installed between the upper joint sleeve and the base, the upper universal direction
  • the fixed block is mounted in the upper cardan sleeve
  • the upper universal joint spring is mounted on the upper joint joint block
  • the upper universal joint spring washer is mounted on the upper universal joint spring
  • the ball of the upper universal joint club is mounted on the upper universal joint spring washer
  • the rod of the upper universal joint club is mounted on the top of the support rod assembly
  • the upper universal joint positioning pin is mounted on the upper universal joint On the sphere of the club (201);
  • the second rotating mechanism includes a lower universal joint spring, a lower universal joint positioning pin, a lower universal joint club, a lower universal joint spring washer and a lower universal joint fixing block, and the lower universal joint fixing block Mounted on the base, the lower universal joint spring is mounted on the lower joint joint block, the lower joint spring washer is mounted on the lower joint spring, and the ball of the lower joint joint is installed under On the universal joint spring washer, the lower universal joint club is mounted on the bottom of the support rod assembly, and the lower universal joint positioning pin is mounted on the ball of the lower joint joint.
  • the lighting assembly comprises a main light board, the main light board is electrically connected to the main circuit board, and the main light board is provided with a plurality of sets of LED lights.
  • the main circuit board controls the main light board to be lit, each group of LED lights is sequentially clicked. Bright; when the main circuit board controls the main light board to go out, each group of LED lights goes out in turn.
  • the Hall sensor obtains the rotation information of the rotating housing by detecting the magnetic lines of the magnet on the rotating housing, and the lighting assembly adjusts the illumination brightness according to the rotation information, thereby realizing the brightness adjustment of the table lamp;
  • the sensing component and the first detecting circuit constitute a capacitor proximity switch, and the first detecting circuit outputs a signal to the MCU when the object approaches or touches, and the MCU lights or extinguishes the console light according to the signal;
  • a first rotating mechanism is disposed between the lamp cap and the support assembly, so that the lamp cap can be rotated relative to the support assembly, thereby realizing adjustment of the illumination angle of the lamp; and the support component is provided by the second rotating mechanism between the support assembly and the base It is rotatable relative to the base to adjust the inclination of the support assembly, thereby realizing adjustment of the illumination area of the table lamp;
  • the first rotating mechanism and the second rotating mechanism can make the overall appearance and activity of the desk lamp as a 360-degree omnidirectional symmetrical structure, and can achieve the same visual appearance and structural deviation from any angle;
  • the back cover panel and the second detecting circuit constitute a capacitor proximity switch, and output a signal to the MCU when the object approaches or touches the back cover panel, and the MCU controls the light panel to be turned on or off according to the signal, and the control mode is novel and convenient. .
  • FIG. 1 is a schematic diagram of the principle of brightness adjustment according to the present invention.
  • Figure 3 is a schematic view of the overall structure of the present invention.
  • FIG. 4 is a schematic view showing the structure of the lamp cap of the present invention:
  • Figure 5 is a schematic view showing the mounting position of the Hall sensor and the magnet in the present invention.
  • Figure 6 is a schematic structural view of a first rotating mechanism in the present invention.
  • Figure 7 is a schematic structural view of a support rod assembly of the present invention.
  • Figure 8 is a schematic structural view of a second rotating mechanism in the present invention.
  • Figure 9 is a schematic view showing the structure of the base of the present invention.
  • This embodiment describes a multi-function table lamp comprising a support base and a base 1 mounted on the support base.
  • the lamp cap 1 includes: a support mechanism mounted on the support base;
  • the main circuit board 103 receives the rotation information of the rotating housing, and outputs a control signal to the lighting assembly to adjust the illumination brightness according to the rotation information.
  • the rotation detecting auxiliary member includes a plurality of magnets 112, and the plurality of magnets 112 are mounted in a radial direction of the rotating housing, and the N magnetic poles and the S magnetic poles of the adjacent magnets 112 are arranged in opposite directions;
  • the rotation detecting member is a Hall sensor 113.
  • a relative displacement between the magnet 112 and the Hall element is generated, so that the Hall sensor 113 detects a change in the magnetic line of the magnet 112, and acquires the rotation of the rotating housing. information.
  • non-contact sensors can also be used to detect the relative rotation angle and direction of rotation of the rotating housing and the support mechanism, such as a light based sensor.
  • the lighting assembly includes a main light board 111.
  • the main light board 111 is electrically connected to the main circuit board 103.
  • the main light board 111 is provided with a plurality of sets of LED lights.
  • the main circuit board 103 controls the main light board
  • each group of LED lights is sequentially turned on; when the main circuit board 103 controls the main light board 111 to be extinguished, each group of LED lights is sequentially turned off.
  • the support base includes: an inductive component for sensing an object approaching or touching.
  • the main circuit board 103 cooperates with the sensing component to form a capacitive proximity switch, and controls the lighting component to be turned on or off according to a signal output from the capacitive proximity switch.
  • the object and the sensing component form a two-pole plate of the capacitor.
  • the dielectric constant of the capacitor formed by the surface of the object and the sensing component changes, and the main circuit board 103 detects the change of the dielectric constant and outputs the switching signal.
  • the circuit board 103 controls the lighting or extinguishing of the lighting assembly according to the switching amount signal, thereby realizing the control of turning on or off the desk lamp.
  • the main circuit board 103 is provided with an MCU, a lighting component driving circuit and a first detecting circuit.
  • the lighting component driving circuit is electrically connected to the lighting component, and the first detecting circuit and the sensing component cooperate to form a capacitor close to And a switch, the MCU controls on and off of the illumination component driving circuit according to the output signal of the first detecting circuit, thereby controlling lighting or extinguishing of the lighting component.
  • the first detecting circuit outputs a switching signal to the MCU, and the MCU controls the switching of the driving circuit of the lighting component according to the switching signal, thereby realizing illumination of the lighting component or Extinguished control.
  • the base 1 further includes an effect light assembly, a back cover panel 104 for sensing an object approaching or contacting, the back cover panel 104 is a metal panel, and the main circuit board 103 is further provided with an effect light component driving circuit and a a second detecting circuit, the effect light component driving circuit is electrically connected to the effect light component, the second detecting circuit and the back cover panel 104 cooperate to form a capacitance proximity switch, and the MCU is configured according to the second detecting circuit
  • the output signal controls the on and off of the optical component driving circuit.
  • the effect light assembly can emit light of a plurality of colors, each light corresponding to an illumination brightness position of the illumination assembly.
  • the function of the effect light component is: in the case that the illumination component is illuminated, the effect light component can display different working states of the current lamp in different colors, such as different brightness positions of the lamp; in the case that the illumination component is extinguished, the effect
  • the light component can be used as a light, such as a constantly lit night light.
  • the first detection circuit and the second detection circuit are identical in structure.
  • the first detecting circuit includes a sequentially connected RC oscillating circuit, a voltage/frequency converting circuit, a signal processing circuit, and an analog-to-digital conversion circuit, the RC oscillating circuit is connected to the sensing surface signal, and the analog-to-digital conversion circuit and The MCU signal is connected, and the signal processing circuit is a differential amplifying circuit.
  • the RC oscillator circuit oscillates, the oscillating signal of the RC oscillating circuit is input to the voltage/frequency conversion circuit, and the voltage/frequency conversion circuit simulates the oscillating signal near frequency/voltage conversion output.
  • the analog-to-digital conversion circuit converts the analog signal into a digital signal input to the MCU.
  • the base 1 further includes a microswitch for turning off or turning on the sensing function, the microswitch being coupled to the MCU signal.
  • the multi-function table lamp comprises a support base and a lamp cap 1 mounted on the support base, the support base further comprising a first rotation mechanism 2, a support rod assembly 3, a second rotation mechanism 4 and a base 5,
  • the top of the first rotating mechanism 2 is mounted on a support mechanism
  • the bottom of the first rotating mechanism 2 is detachably mounted on the top of the support rod assembly 3
  • the bottom of the support rod assembly 3 is detachably mounted on the second rotating mechanism 4
  • the base 5 the bottom of the second rotating mechanism 4 is mounted on the base 5.
  • a first rotating mechanism 2 is disposed between the lamp cap 1 and the support assembly 3, so that the lamp cap 1 can be rotated relative to the support assembly 3, thereby achieving adjustment of the illumination angle of the lamp;
  • a second rotating mechanism is provided between the support assembly 3 and the base 5. 4, the support assembly 3 can be rotated relative to the base 5, thereby adjusting the inclination of the support assembly 3, thereby achieving adjustment of the illumination area of the table lamp.
  • the bottom of the first rotating mechanism 2 is screwed to the top of the support rod assembly 3, and the bottom of the support rod assembly 3 is threadedly mounted on the top of the second rotating mechanism 4.
  • the base 1 includes a support mechanism, a rotating housing, a magnet 112, a Hall sensor 113, a lighting assembly, and a main circuit board 103.
  • the rotating housing includes a lampshade housing 106 and a lamp cover rail 105.
  • the lampshade rail 105 is rotatably mounted on the outside of the support mechanism by a ball bearing 110.
  • the magnet 112 is fixedly mounted on the lampshade rail 105, and the lampshade rail 105 is outside.
  • a plurality of protrusions are disposed, and the lampshade housing 106 is provided with a plurality of notches matching the protrusions, and the lampshade housing 106 is detachably mounted on the lampshade rail by the cooperation of the notches and the protrusions 105 on.
  • the lamp cover rail 105 is radially mounted with a plurality of magnets 112, and the N magnetic poles and the S magnetic poles of the adjacent magnets 112 are arranged in opposite directions.
  • the lamp housing 106 is provided with three holes, which can be used for holding when rotating the lamp housing 106, and can also function as heat dissipation and light transmission, and the user can extend the hand through the hole to touch
  • the back cover panel 104 controls the lighting or extinguishing of the effect light assembly.
  • the lampshade casing 106 When the lampshade casing 106 is rotated, the lampshade casing 106 drives the lampshade rail 105 to rotate, thereby realizing the rotation of the magnet 112, and the Hall sensor 113 acquires the rotation information of the lampshade rail 105 by detecting the magnetic field line change of the magnet 112.
  • the support mechanism includes a support frame 102, a back cover outer ring 109 and a back cover panel 104.
  • the support frame 102 is mounted on the top of the first rotating mechanism 2, and the back cover outer ring 109 is mounted on the lamp cover rail 105.
  • the back cover panel 104 is mounted on the back cover outer ring 109, and the back cover panel 104 has a hole formed therein.
  • the illumination assembly includes a main light panel 111 and a main lens 101
  • the effect light assembly includes an effect light panel 108 and an effect light lens 107
  • the main lens 101 being mounted at the bottom of the support frame 102
  • the main light A plate 111 is mounted between the main lens 101 and the support frame 102
  • the effect light lens 107 is mounted on the top of the support frame 102
  • one side of the effect light lens 107 is convex through a hole in the back cover panel 104.
  • the back cover panel 104 is mounted between the support frame 102 and the effect light lens 107
  • the Hall sensor 113 is mounted on the support frame 102.
  • the main circuit board 103 is electrically connected to the Hall sensor 113, the main light board 111, and the effect light board 108, respectively.
  • the micro switch is disposed on the back cover panel 104, and the micro switch can be operated through a hole in the lamp housing 106, or the micro switch can be operated after the lamp housing 106 is removed.
  • the lighting assembly includes a main light board 111.
  • the main light board 111 is electrically connected to the main circuit board 103.
  • the main light board 111 is provided with a plurality of sets of LED lights.
  • each group of LEDs The lights are sequentially turned on, thereby realizing the fade-up function of the main light board 111;
  • each group of LED lights is sequentially turned off, thereby realizing the annihilation of the main light board 111.
  • the fade-on function gives the eyes of the people an adaptation process when lighting the desk lamp, which can prevent the discomfort of the eyes caused by the sudden brightening of the light in the dark environment; likewise, the fade-out function gives the eyes of the person an adaptation process when the desk lamp is extinguished.
  • the first rotating mechanism 2 includes an upper universal joint ball 201, an upper universal joint cup 202, an upper universal joint cup washer 203, an upper universal joint spring 204, and an upper universal joint fixing block. 205, upper universal joint positioning pin 206 and upper universal joint spring washer 207, the upper universal joint cup sleeve 202 is mounted on the support frame 102, and the upper universal joint cup sleeve washer 203 is installed on the upper universal direction Between the cup sleeve 202 and the support frame 102, the upper cardan joint fixing block 205 is mounted in the upper cardan sleeve 202, and the upper cardan joint spring 204 is mounted on the upper joint joint block 205.
  • the upper gimbal spring washer 207 is mounted on the upper cardan joint spring 204.
  • the ball of the upper gimbal club 201 is mounted on the upper universal joint spring washer 207, the upper universal joint ball
  • the rod of the rod 201 is mounted on the top of the support rod assembly 3, and the upper joint joint pin 206 is mounted on the ball of the upper joint joint rod 201.
  • the support rod assembly 3 includes a support rod 301, a support rod outer sleeve 302 for sensing an object approaching or contacting, the support rod outer sleeve 302 being fitted outside the support rod 301, the support rod outer sleeve 302 and The first detecting circuit cooperates to form a capacitor proximity switch, and the top of the support rod 301 is detachably mounted on the rod body of the upper cardan joint 201, and the bottom of the support rod 301 is detachably mounted on the second rotating mechanism 4.
  • the second rotating mechanism 4 includes a lower universal joint spring 401, a lower universal joint positioning pin 402, a lower universal joint club 403, a lower universal joint spring washer 404, and a lower universal joint fixing block.
  • the lower cardan joint fixing block 405 is mounted on the base 5
  • the lower cardan joint spring 401 is mounted on the lower joint joint fixing block 405
  • the lower joint joint spring washer 404 is mounted on the lower joint joint
  • the ball of the lower universal joint club 403 is mounted on the lower joint spring washer 404
  • the rod of the lower joint joint club 403 is mounted on the bottom of the support rod 301, the lower universal direction
  • the joint positioning pin 402 is mounted on the ball of the lower joint joint club 403.
  • the base 5 includes a DC seat bracket 502, a DC seat 503, a base upper casing 504 for sensing an object approaching or contacting, a weight base 505, a power cord 506, and a base lower casing 507.
  • the 504 cooperates with the first detecting circuit to form a capacitive proximity switch, the base upper casing 504 is mounted on the top of the lower base 507, and the counterweight 505 is mounted between the base upper casing 504 and the lower base casing 507.
  • the DC mount 502 is mounted between the lower base 507 and the counterweight 505.
  • the DC mount 503 is mounted on the DC mount 502. One end of the power cord 506 is electrically connected to the DC mount 503.
  • the DC holder 503 is electrically connected to the main lamp panel 111, the effect light panel 108, and the main circuit board 103, respectively.
  • the counterweight 505 is used to prevent the desk lamp from falling when adjusting the angle between the support bar assembly 3 and the base 5.
  • the lower gimbal fixing block 405 is mounted on the top of the lower base 507 of the base.
  • the bottom of the lower housing 507 of the base is provided with an anti-slip mat 501.
  • the anti-slip mat 501 can increase the friction between the desk lamp and the surface of the article, thereby improving the firmness of the placement of the desk lamp.
  • the power cord 506 is located on a portion of the outer casing 504 and the lower casing 507 of the base, and is provided with a power switch.
  • the power switch adopts a ship type switch.
  • the sensing component is composed of a support rod outer casing 302 and a base upper casing 504; the induction component can be made of metal, that is, the support rod outer casing 302 is a metal outer casing, and the outer upper casing 504 is a metal outer casing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

一种多功能台灯，包括支撑座和灯头(1)，支撑座包括用于感应物体接近或触摸的感应组件；灯头(1)包括：支撑机构，安装在支撑座上；旋转壳体，转动安装在支撑机构上，旋转壳体上安装有转动检测辅助部件(112)；转动检测部件(113)，安装在支撑机构上，转动旋转壳体时，转动检测部件(113)与转动检测辅助部件(112)配合获取旋转壳体的转动信息；照明组件，安装在支撑机构上；主电路板(103)，与感应组件配合构成电容接近开关，并根据电容接近开关输出的信号控制照明组件的点亮或熄灭；接收旋转壳体的转动信息，并根据转动信息输出控制信号至照明组件调节照明亮度。通过转动旋转壳体实现台灯的亮度调节，通过接近或触摸支撑座表面的感应面实现台灯的点亮或熄灭。

Description

一种多功能台灯 技术领域
本发明涉及台灯设计技术领域，特别是涉及一种多功能台灯。
 背景技术
台灯是日常生活中常用到的一种照明电器，主要放置在书桌、办公桌上。但是现有的台灯存在以下不足：（1）现有台灯主要都是通过按键开关来实现的点亮或熄灭，用户体验不佳；此外，还有少数台灯设置有触摸屏来进行台灯的控制，但是只有在触摸屏上进行操作才能实现台灯的开关，使用体验较差；（2）现有大多数台灯的亮度都是固定的，无法根据实际需要进行亮度调节；虽然现在出现了一些支持亮度调节的台灯，但是这些台灯亮度的调节是设置多个档位按键，每个档位按键对于一个亮度等级，亮度划分的等级越多则需要越多的档位按键，增加了台灯结构的复杂度，且按键操作的用户体验不佳。
 技术问题
本发明的目的在于克服现有技术的不足，提供一种多功能台灯，通过转动旋转壳体实现台灯的亮度调节，通过接近或触摸支撑座表面的感应面实现台灯的点亮或熄灭。
 技术解决方案
本发明的目的是通过以下技术方案来实现的：一种多功能台灯，包括支撑座和安装于所述支撑座上的灯头；
所述支撑座包括：感应组件，用于感应物体接近或触摸；
所述灯头包括：支撑机构，安装在所述支撑座上；
旋转壳体，转动安装在所述支撑机构上，转动旋转壳体时，支撑机构在径向上静止固定，旋转壳体与支撑机构之间产生径向相对位移，所述旋转壳体上安装有转动检测辅助部件；
转动检测部件，安装在所述支撑机构上，转动旋转壳体时，转动检测部件与转动检测辅助部件配合获取所述旋转壳体的转动信息；
照明组件，安装在所述支撑机构上；
主电路板，与所述感应组件配合构成电容接近开关，并根据电容接近开关输出的信号控制照明组件的点亮或熄灭；接收所述旋转壳体的转动信息，并根据所述转动信息输出控制信号至照明组件调节照明亮度。
优选的，所述转动检测辅助部件包括多个磁铁，所述多个磁铁安装在旋转壳体的径向上，相邻磁铁的N磁极和S磁极排布方式相反；
所述转动检测部件为霍尔传感器，转动旋转壳体时，磁铁与霍尔元件之间产生相对位移，使得霍尔传感器检测到磁铁的磁力线变化，获取所述旋转壳体的转动信息。
优选的，所述支撑座还包括第一转动机构、支撑杆组件、第二转动机构和底座，所述第一转动机构的顶部安装在支撑机构上，所述第一转动机构的底部安装在支撑杆组件的顶部，支撑杆组件的底部安装在第二转动机构的顶部，第二转动机构的底部安装在底座上。
优选的，所述主电路板上设有MCU、照明组件驱动电路和第一检测电路，所述照明组件驱动电路与所述照明组件电连接，所述第一检测电路与所述感应组件配合构成电容接近开关，所述MCU根据所述第一检测电路的输出信号控制照明组件驱动电路的通断。
所述灯头还包括效果光组件、用于感应物体接近或接触的背盖面板，所述主电路板上还设有效果光组件驱动电路和第二检测电路，所述效果光组件驱动电路与所述效果光组件电连接，所述第二检测电路与所述背盖面板配合构成电容接近开关，所述MCU根据所述第二检测电路的输出信号控制效果光组件驱动电路的通断。
优选的，所述支撑杆组件包括支撑杆、用于感应物体接近或接触的支撑杆外套，所述支撑杆外套套装在所述支撑杆外侧，所述支撑杆外套与所述第一检测电路配合构成电容接近开关，所述支撑杆的顶部安装在第一转动机构上，所述支撑杆的底部安装在第二转动机构上。
优选的，所述底座包括用于感应物体接近或接触的底座上外壳和底座下外壳，所述底座上外壳与所述第一检测电路配合构成电容接近开关，所述底座上外壳安装在底座下外壳的顶部。
优选的，所述灯头还包括用于关闭或开启感应功能的微动开关，所述微动开关与所述MCU信号连接
优选的，所述第一转动机构包括上万向节球杆、上万向节杯套、上万向节杯套垫圈上万向节弹簧、上万向节固定块、上万向节定位销和上万向节弹簧垫片，所述上万向节杯套安装在支撑机构上，所述上万向节杯套垫圈安装在上万向节杯套和灯头之间，所述上万向节固定块安装在上万向节杯套内，所述上万向节弹簧安装在上万向节固定块上，所述上万向节弹簧垫片安装在上万向节弹簧上，所述上万向节球杆的球体安装在上万向节弹簧垫片上，所述上万向节球杆的杆体安装在支撑杆组件的顶部，所述上万向节定位销安装在上万向节球杆（201）的球体上；
所述第二转动机构包括下万向节弹簧、下万向节定位销、下万向节球杆、下万向节弹簧垫片和下万向节固定块，所述下万向节固定块安装在底座上，所述下万向节弹簧安装在下万向节固定块上，所述下万向节弹簧垫片安装在下万向节弹簧上，所述下万向节球杆的球体安装在下万向节弹簧垫片上，所述下万向节球杆的杆体安装在支撑杆组件的底部，所述下万向节定位销安装在下万向节球杆的球体上。
优选的，所述照明组件包括主灯板，主灯板与主电路板电连接，主灯板上设有多组LED灯，当主电路板控制主灯板点亮时，各组LED灯依次点亮；当主电路板控制主灯板熄灭时，各组LED灯依次熄灭。
 有益效果
本发明的有益效果是：
（1）旋转壳体在转动时，霍尔传感器通过检测旋转壳体上磁铁的磁力线获取旋转壳体的转动信息，照明组件根据该转动信息调节照明亮度，从而实现了台灯的亮度调节；
（2）感应组件和第一检测电路构成电容接近开关，在物体接近或触摸时第一检测电路输出信号至MCU，MCU根据该信号控制台灯的点亮或熄灭；
（3）灯头和支撑组件之间设置有第一转动机构，使得灯头可以相对于支撑组件转动，从而实现台灯照明角度的调节；由于支撑组件和底座之间设有第二转动机构，使得支撑组件可以相对于底座转动，从而调节支撑组件的倾角，进而实现台灯照明区域的调节；
（4）第一转动机构和第二转动机构使得台灯整体外观及活动可视为360度全向对称结构，从任何角度都可以实现同样的视觉外观及结构偏差；
（5）背盖面板和第二检测电路构成电容接近开关，在物体接近或触摸背盖面板时输出信号至MCU，MCU根据该信号控制效果光灯板的点亮或熄灭，控制方式新颖、方便。
 附图说明
图1为本发明的亮度调节原理示意图；
图2为本发明的感应功能原理示意图；
图3为本发明的整体结构示意图；
图4为本发明的灯头结构示意图：
图5为本发明中霍尔传感器和磁铁的安装位置示意图；
图6为本发明中第一转动机构的结构示意图；
图7为本发明的支撑杆组件结构示意图；
图8为本发明中第二转动机构的结构示意图；
图9为本发明的底座结构示意图；
图中，1—灯头，101—主透镜，102—支撑架，103—主电路板，104—背盖面板，105—灯罩轨道，106—灯罩外壳，107—效果光透镜，108—效果光灯板，109—背盖外圈，110—滚珠轴承，111—主灯板，112—磁铁，113—霍尔传感器，2—第一转动机构，201—上万向节球杆，202—上万向节杯套，203—上万向节杯套垫圈，204—上万向节弹簧，205—上万向节固定块，206—上万向节定位销，207—上万向节弹簧垫片，3—支撑杆组件，301—支撑杆，302—支撑杆外套，4—第二转动机构，401—下万向节弹簧，402—下万向节定位销，403—下万向节球杆，404—下万向节弹簧垫片，405—下万向节固定块，5—底座，501—防滑垫，502—DC座支架，503—DC座，504—底座上外壳，505—配重座，506—电源线，507—底座下外壳。
 本发明的实施方式
下面结合附图进一步详细描述本发明的技术方案，但本发明的保护范围不局限于以下所述。
该实施例描述了一种多功能台灯，包括支撑座和安装于所述支撑座上的灯头1。
所述灯头1包括：支撑机构，安装在所述支撑座上；
旋转壳体，转动安装在所述支撑机构上，转动旋转壳体时，支撑机构在径向上静止固定，旋转壳体与支撑机构之间产生径向相对位移，所述旋转壳体上安装有转动检测辅助部件；在一种实施方式中旋转壳体与支撑机构之间采用分离式设计，即用户可以独立取下旋转壳体；在另一种实施方式中，旋转壳体与支撑机构之间不能分离，只能相对旋转；
转动检测部件，安装在所述支撑机构上，转动旋转壳体时，转动检测部件与转动检测辅助部件配合获取所述旋转壳体的转动信息；
照明组件，安装在所述支撑机构上；
主电路板103，接收所述旋转壳体的转动信息，并根据所述转动信息输出控制信号至照明组件调节照明亮度。
如图1所示，所述转动检测辅助部件包括多个磁铁112，所述多个磁铁112安装在旋转壳体的径向上，相邻磁铁112的N磁极和S磁极排布方式相反；
所述转动检测部件为霍尔传感器113，转动旋转壳体时，磁铁112与霍尔元件之间产生相对位移，使得霍尔传感器113检测到磁铁112的磁力线变化，获取所述旋转壳体的转动信息。
此外，也可以采用其他非接触式传感器来检测旋转壳体与支撑机构的相对旋转角度及旋转方向，如基于光线的传感器。
在另一种实施方式中，所述照明组件包括主灯板111，主灯板111与主电路板103电连接，主灯板111上设有多组LED灯，当主电路板103控制主灯板111点亮时，各组LED灯依次点亮；当主电路板103控制主灯板111熄灭时，各组LED灯依次熄灭。
如图2所示，所述支撑座包括：感应组件，用于感应物体接近或触摸。
所述主电路板103与所述感应组件配合构成电容接近开关，并根据电容接近开关输出的信号控制照明组件的点亮或熄灭。
物体和感应组件构成电容的两极板，当物体接近接触面时，物体和感应组件面构成的电容的介电常数发生变化，主电路板103检测到介电常数的变化后输出开关量信号，主电路板103根据该开关量信号控制照明组件的点亮或熄灭，从而实现了台灯点亮或熄灭的控制。
所述主电路板103上设有MCU、照明组件驱动电路和第一检测电路，所述照明组件驱动电路与所述照明组件电连接，所述第一检测电路与所述感应组件配合构成电容接近开关，所述MCU根据所述第一检测电路的输出信号控制照明组件驱动电路的通断，从而控制照明组件的点亮或熄灭。当物体和感应组件面构成的电容的介电常数发生变化，第一检测电路输出开关量信号至MCU，MCU根据该开关量信号控制照明组件驱动电路的通断，从而实现了照明组件点亮或熄灭的控制。
所述灯头1还包括效果光组件、用于感应物体接近或接触的背盖面板104，所述背盖面板104为金属面板，所述主电路板103上还设有效果光组件驱动电路和第二检测电路，所述效果光组件驱动电路与所述效果光组件电连接，所述第二检测电路与所述背盖面板104配合构成电容接近开关，所述MCU根据所述第二检测电路的输出信号控制效果光组件驱动电路的通断。
所述效果光组件可以发出多种颜色的光，每种颜色的光对应照明组件的一个照明亮度档位。效果光组件的其作用为：在照明组件点亮的情况下，效果光组件可以用不同的颜色显示当前台灯的不同工作状态，例如台灯的不同亮度档位；在照明组件熄灭的情况下，效果光组件可用作照明，如作为常亮的小夜灯。
所述第一检测电路和第二检测电路结构相同。
所述第一检测电路包括顺次连接的RC振荡电路、电压/频率变换电路、信号处理电路和模数转换电路，所述RC振荡电路与所述感应面信号连接，所述模数转换电路与所述MCU信号连接，信号处理电路为差分放大电路。在物体和感应面构成的电容介电常数发生变化时，RC振荡电路发生振荡，RC振荡电路的振荡信号输入电压/频率变换电路，电压/频率变换电路对振荡信号近频率/电压变换输出一模拟信号，信号处理电路对该模拟信号进行信号处理后，模数转换电路将该模拟信号转换为数字信号输入MCU。
所述灯头1还包括用于关闭或开启感应功能的微动开关，所述微动开关与所述MCU信号连接。
如图3所示，多功能台灯包括支撑座和安装于所述支撑座上的灯头1，所述支撑座还包括第一转动机构2、支撑杆组件3、第二转动机构4和底座5，所述第一转动机构2的顶部安装在支撑机构上，所述第一转动机构2的底部可拆卸安装在支撑杆组件3的顶部，支撑杆组件3的底部可拆卸安装在第二转动机构4的顶部，第二转动机构4的底部安装在底座5上。灯头1和支撑组件3之间设置有第一转动机构2，使得灯头1可以相对于支撑组件3转动，从而实现台灯照明角度的调节；由于支撑组件3和底座5之间设有第二转动机构4，使得支撑组件3可以相对于底座5转动，从而调节支撑组件3的倾角，进而实现台灯照明区域的调节。
优选的，所述第一转动机构2的底部通过螺纹安装在支撑杆组件3的顶部，支撑杆组件3的底部通过螺纹安装在第二转动机构4的顶部。
如图4和图5所示，灯头1包括支撑机构、旋转壳体、磁铁112、霍尔传感器113、照明组件和主电路板103。
所述旋转壳体包括灯罩外壳106和灯罩轨道105，所述灯罩轨道105通过滚珠轴承110转动安装在支撑机构外侧，所述磁铁112固定安装在所述灯罩轨道105上，所述灯罩轨道105外侧设有多个凸起，所述灯罩外壳106上设有多个与所述凸起配合的缺口，所述灯罩外壳106通过所述缺口和所述凸起的配合可拆卸安装在所述灯罩轨道105上。所述灯罩轨道105径向上安装有多个磁铁112，相邻磁铁112的N磁极和S磁极排布方式相反。所述灯罩外壳106上开设有三个孔，这些孔既可以在旋转灯罩外壳106时用于握持，又可以起到散热、透效果光的作用，以及用户可以通过该孔将手伸入以触摸背盖面板104控制效果光组件的点亮或熄灭。旋转灯罩外壳106时，灯罩外壳106带动灯罩轨道105转动，从而实现磁铁112的转动，霍尔传感器113则通过检测磁铁112的磁力线变化获取灯罩轨道105的转动信息。
所述支撑机构包括支撑架102、背盖外圈109和背盖面板104，所述支撑架102安装在第一转动机构2的顶部，所述背盖外圈109安装在灯罩轨道105上，所述背盖面板104安装在背盖外圈109上，所述背盖面板104上开有一个孔。
所述照明组件包括主灯板111和主透镜101，所述效果光组件包括效果光灯板108和效果光透镜107，所述主透镜101安装在所述支撑架102的底部，所述主灯板111安装在所述主透镜101和所述支撑架102之间，所述效果光透镜107安装在所述支撑架102的顶部，效果光透镜107的一侧通过背盖面板104上的孔凸出背盖面板104，所述效果光灯板108安装在支撑架102和效果光透镜107之间，所述霍尔传感器113安装在支撑架102上。
所述主电路板103分别与所述霍尔传感器113、主灯板111和效果光灯板108电连接。
所述微动开关设置在背盖面板104上，可以穿过灯罩外壳106上的孔操作微动开关，或者是将灯罩外壳106取下后再操作微动开关。
所述照明组件包括主灯板111，主灯板111与主电路板103电连接，主灯板111上设有多组LED灯，当主电路板103控制主灯板111点亮时，各组LED灯依次延时点亮，从而实现了主灯板111的渐亮功能；当主电路板103控制主灯板111熄灭时，各组LED灯依次延时熄灭，从而实现了主灯板111的渐灭功能。渐亮功能在点亮台灯时给人们的眼睛一个适应过程，可以防止黑暗环境下灯光突然变亮导致的人们眼睛的不适；同样，渐灭功能在熄灭台灯时给人们的眼睛一个适应过程。
如图6所示，第一转动机构2包括上万向节球杆201、上万向节杯套202、上万向节杯套垫圈203、上万向节弹簧204、上万向节固定块205、上万向节定位销206和上万向节弹簧垫片207，所述上万向节杯套202安装在支撑架102上，所述上万向节杯套垫圈203安装在上万向节杯套202和支撑架102之间，所述上万向节固定块205安装在上万向节杯套202内，所述上万向节弹簧204安装在上万向节固定块205上，所述上万向节弹簧垫片207安装在上万向节弹簧204上，所述上万向节球杆201的球体安装在上万向节弹簧垫片207上，所述上万向节球杆201的杆体安装在支撑杆组件3的顶部，所述上万向节定位销206安装在上万向节球杆201的球体上。
如图7所示，支撑杆组件3包括支撑杆301、用于感应物体接近或接触的支撑杆外套302，所述支撑杆外套302套装在所述支撑杆301外侧，所述支撑杆外套302与所述第一检测电路配合构成电容接近开关，支撑杆301的顶部可拆卸安装在上万向节球杆201的杆体上，支撑杆301的底部可拆卸安装在第二转动机构4上。
如图8所示，第二转动机构4包括下万向节弹簧401、下万向节定位销402、下万向节球杆403、下万向节弹簧垫片404和下万向节固定块405，所述下万向节固定块405安装在底座5上，所述下万向节弹簧401安装在下万向节固定块405上，所述下万向节弹簧垫片404安装在下万向节弹簧401上，所述下万向节球杆403的球体安装在下万向节弹簧垫片404上，所述下万向节球杆403的杆体安装在支撑杆301的底部，所述下万向节定位销402安装在下万向节球杆403的球体上。
如图9所示，底座5包括DC座支架502、DC座503、用于感应物体接近或接触的底座上外壳504、配重座505、电源线506和底座下外壳507，所述底座上外壳504与所述第一检测电路配合构成电容接近开关，所述底座上外壳504安装在底座下外壳507的顶部，所述配重座505安装在底座上外壳504和底座下外壳507之间，所述DC座支架502安装在底座下外壳507和配重座505之间，所述DC座503安装在所述DC座支架502上，所述电源线506的一端与所述DC座503电连接，所述DC座503分别与所述主灯板111、效果光灯板108和主电路板103电连接。配重座505用于在调节支撑杆组件3和底座5之间的角度时防止台灯摔倒。所述下万向节固定块405安装在底座下外壳507的顶部。
所述底座下外壳507的底部设有防滑垫501，当台灯放置在某个物品表面时，防滑垫501能够增加台灯和该物品表面之间的摩擦力，提高台灯放置的牢固性。
所述电源线506位于底座上外壳504和底座下外壳507构成的腔体外的部分上设有电源开关，在一种实施方式中该电源开关采用船型开关。
所述感应组件由支撑杆外套302和底座上外壳504组成；感应组件可以采用金属材质，即支撑杆外套302为金属外套、底座上外壳504为金属外壳。
如上参照附图以示例的方式描述了根据本发明的一种。但是，本领域技术人员应当理解，对于上述本发明所提出的一种，还可以在不脱离本发明内容的基础上做出各种改进，或者对其中部分技术特征进行等同替换，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。因此，本发明的保护范围应当由所附的权利要求书的内容确定。

Claims (10)

  1. 一种多功能台灯，包括支撑座和安装于所述支撑座上的灯头（1），其特征在于，
    所述支撑座包括：感应组件，用于感应物体接近或触摸；
    所述灯头（1）包括：支撑机构，安装在所述支撑座上；
    旋转壳体，转动安装在所述支撑机构上，转动旋转壳体时，支撑机构在径向上静止固定，旋转壳体与支撑机构之间产生径向相对位移，所述旋转壳体上安装有转动检测辅助部件；
    转动检测部件，安装在所述支撑机构上，转动旋转壳体时，转动检测部件与转动检测辅助部件配合获取所述旋转壳体的转动信息；
    照明组件，安装在所述支撑机构上；
    主电路板（103），与所述感应组件配合构成电容接近开关，并根据电容接近开关输出的信号控制照明组件的点亮或熄灭；接收所述旋转壳体的转动信息，并根据所述转动信息输出控制信号至照明组件调节照明亮度。
  2. 根据权利要求1所述的一种多功能台灯，其特征在于，所述转动检测辅助部件包括多个磁铁（112），所述多个磁铁（112）安装在旋转壳体的径向上，相邻磁铁（112）的N磁极和S磁极排布方式相反；
    所述转动检测部件为霍尔传感器（113），转动旋转壳体时，磁铁（112）与霍尔元件之间产生相对位移，使得霍尔传感器（113）检测到磁铁（112）的磁力线变化，获取所述旋转壳体的转动信息。
  3. 根据权利要求1所述的一种多功能台灯，其特征在于，所述支撑座还包括第一转动机构（2）、支撑杆组件（3）、第二转动机构（4）和底座（5），所述第一转动机构（2）的顶部安装在支撑机构上，所述第一转动机构（2）的底部安装在支撑杆组件（3）的顶部，支撑杆组件（3）的底部安装在第二转动机构（4）的顶部，第二转动机构（4）的底部安装在底座（5）上。
  4. 根据权利要求3所述的一种多功能台灯，其特征在于，所述主电路板（103）上设有MCU、照明组件驱动电路和第一检测电路，所述照明组件驱动电路与所述照明组件电连接，所述第一检测电路与所述感应组件配合构成电容接近开关，所述MCU根据所述第一检测电路的输出信号控制照明组件驱动电路的通断。
  5. 根据权利要求4所述的一种多功能台灯，其特征在于，所述灯头（1）还包括效果光组件、用于感应物体接近或接触的背盖面板（104），所述主电路板（103）上还设有效果光组件驱动电路和第二检测电路，所述效果光组件驱动电路与所述效果光组件电连接，所述第二检测电路与所述背盖面板（104）配合构成电容接近开关，所述MCU根据所述第二检测电路的输出信号控制效果光组件驱动电路的通断。
  6. 根据权利要求4所述的一种多功能台灯，其特征在于，所述支撑杆组件（3）包括支撑杆（301）、用于感应物体接近或接触的支撑杆外套（302），所述支撑杆外套（302）套装在所述支撑杆（301）外侧，所述支撑杆外套（302）与所述第一检测电路配合构成电容接近开关，所述支撑杆（301）的顶部安装在第一转动机构（2）上，所述支撑杆（301）的底部安装在第二转动机构（4）上。
  7. 根据权利要求4所述的一种多功能台灯，其特征在于，所述底座（5）包括用于感应物体接近或接触的底座上外壳（504）和底座下外壳（507），所述底座上外壳（504）与所述第一检测电路配合构成电容接近开关，所述底座上外壳（504）安装在底座下外壳（507）的顶部。
  8. 根据权利要求4所述的一种多功能台灯，其特征在于，所述灯头（1）还包括用于关闭或开启感应功能的微动开关，所述微动开关与所述MCU信号连接。
  9. 根据权利要求3所述的一种多功能台灯，其特征在于，所述第一转动机构（2）包括上万向节球杆（201）、上万向节杯套（202）、上万向节杯套垫圈（203）、上万向节弹簧（204）、上万向节固定块（205）、上万向节定位销（206）和上万向节弹簧垫片（207），所述上万向节杯套（202）安装在支撑机构上，所述上万向节杯套垫圈（203）安装在上万向节杯套（202）和灯头（1）之间，所述上万向节固定块（205）安装在上万向节杯套（202）内，所述上万向节弹簧（204）安装在上万向节固定块（205）上，所述上万向节弹簧垫片（207）安装在上万向节弹簧（204）上，所述上万向节球杆（201）的球体安装在上万向节弹簧垫片（207）上，所述上万向节球杆（201）的杆体安装在支撑杆组件（3）的顶部，所述上万向节定位销（206）安装在上万向节球杆（201）的球体上；
    所述第二转动机构（4）包括下万向节弹簧（401）、下万向节定位销（402）、下万向节球杆（403）、下万向节弹簧垫片（404）和下万向节固定块（405），所述下万向节固定块（405）安装在底座（5）上，所述下万向节弹簧（401）安装在下万向节固定块（405）上，所述下万向节弹簧垫片（404）安装在下万向节弹簧（401）上，所述下万向节球杆（403）的球体安装在下万向节弹簧垫片（404）上，所述下万向节球杆（403）的杆体安装在支撑杆组件（3）的底部，所述下万向节定位销（402）安装在下万向节球杆（403）的球体上。
  10. 根据权利要求1所述的一种多功能台灯，其特征在于，所述照明组件包括主灯板（111），主灯板（111）与主电路板（103）电连接，主灯板（111）上设有多组LED灯，当主电路板（103）控制主灯板（111）点亮时，各组LED灯依次点亮；当主电路板（103）控制主灯板（111）熄灭时，各组LED灯依次熄灭。
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