WO2020135699A1 - 一种直线音圈电机 - Google Patents
一种直线音圈电机 Download PDFInfo
- Publication number
- WO2020135699A1 WO2020135699A1 PCT/CN2019/129135 CN2019129135W WO2020135699A1 WO 2020135699 A1 WO2020135699 A1 WO 2020135699A1 CN 2019129135 W CN2019129135 W CN 2019129135W WO 2020135699 A1 WO2020135699 A1 WO 2020135699A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elastic member
- connecting rod
- voice coil
- magnetic element
- coil motor
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
Definitions
- the invention belongs to the terahertz optical technology field, and particularly relates to a linear voice coil motor.
- the terahertz wave optical system is mainly composed of two parts, one part is the radiation of the terahertz wave, and the other part is the detection of the terahertz wave.
- the detection of the terahertz wave is to use the detection pulse and the terahertz pulse to interact to obtain the information of the terahertz pulse at different phase points, and then combine the information of each point to obtain a complete terahertz waveform.
- a moving device is generally needed to change the effective optical path of a path of light to change the position where the detection pulse interacts with the terahertz pulse to obtain a terahertz wave.
- a single-group shrapnel-type linear voice coil motor is generally used to change the optical path.
- the linear voice coil motor can move to the left and right to obtain a terahertz waveform.
- the disadvantage of this linear voice coil motor's movement method is that the linear voice coil motor cannot always maintain a constant speed movement in the horizontal direction, which will cause the acquired terahertz waves to be insufficiently accurate and true.
- the purpose of the present invention is to provide a linear voice coil motor to solve the technical problem that the obtained terahertz wave is not accurate and real due to the insufficient speed of the voice coil motor in the prior art.
- the technical solution adopted by the present invention is to provide a linear voice coil motor device for acquiring terahertz waveforms.
- the linear voice coil motor includes a swing component, an elastic component, and upper and lower magnetic elements arranged at intervals And the lower magnetic element, the swing assembly includes a swing substrate between the upper magnetic element and the lower magnetic element, a coil disposed on the swing substrate, and left and right sides respectively connected to the left and right sides of the swing substrate
- the connecting rod and the right connecting rod, the plate surface of the swing substrate is parallel to the horizontal left and right directions, and the north and south poles of the upper magnetic element and the lower magnetic element are located on the left and right sides of the upper magnetic element or the lower magnetic element
- the elastic assembly includes a first left elastic member fixedly connected to the left connecting rod and a first right elastic member fixedly connected to the right connecting rod, the elastic assembly further includes The first left elastic member is spaced from right to left and has elasticity, and the second left elastic member is spaced apart from the first right elastic member
- the second right elastic piece, wherein the left is connected is connected to the retro-reflecting mirror, the upper magnetic element and the lower magnetic element jointly generate an operating magnetic field, and the coil will be subjected to the operating magnetic field when energized Force to the left or right.
- first left elastic member and the first right elastic member have the same elastic structure
- second left elastic member and the second right elastic member adopt the same elastic structure
- the distance between the first left elastic member and the swinging substrate is equal to the distance between the first right elastic member and the swinging substrate, and the distance between the first left elastic member and the second left elastic member It is equal to the distance between the first right elastic member and the second right elastic member.
- first left elastic member, the second left elastic member, the first right elastic member, and the second right elastic member have an elastic sheet structure.
- first left elastic piece, the second left elastic piece, the first right elastic piece and the second right elastic piece are compression spring structures.
- first left elastic piece, the second left elastic piece, the first right elastic piece and the second right elastic piece are all arranged perpendicular to the left connecting rod and the right connecting rod.
- first left elastic member and the first right elastic member are respectively provided with a first left connecting hole and a first right connecting hole at the central positions, and the second left elastic member and the second right elastic member A second left through hole and a second right through hole are respectively opened at the center position, the left connecting rod penetrates the first left connecting hole and the second left through hole respectively, and the right connecting rod penetrates the The first right connecting hole and the second right through hole.
- first left connecting hole is interference-fitted and tightly connected with the left connecting rod
- first right connecting hole is interference-fitted and tightly connected with the right connecting rod
- second left There is a gap between the through hole and the left connecting rod for the left connecting rod to move left and right in the second left through hole, and there is a space between the second right through hole and the right connecting rod for the A gap where the right connecting rod moves left and right inside the second right connecting hole.
- the upper magnetic element and the lower magnetic element are symmetrically arranged with the swing axis of the swing substrate as a central axis.
- the beneficial effect provided by the present invention is: compared with the prior art, the acceleration and deceleration process of the voice coil motor is accelerated, the area where the speed change of the voice coil motor is gently changed, and the movement speed of the voice coil motor in the middle moving area is more It tends to move at a uniform speed.
- the detection pulse samples the terahertz wave
- the sampling method is closer to the equal interval sampling to obtain a more real terahertz wave signal.
- FIG. 1 is a schematic diagram of the overall structure of a linear voice coil motor provided by an embodiment of the present invention
- FIG. 2 is a schematic diagram of a motion law curve of a linear voice coil motor provided by an embodiment of the present invention.
- Label name Label name 10 Linear voice coil motor A A 11 Swing components A A 110 Swing base 111 Coil 112 Left connecting rod 113 Right connecting rod 12 Elastic components A A
- first and second are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
- the features defined as “first” and “second” may explicitly or implicitly include one or more of the features.
- the meaning of “plurality” is two or more, unless otherwise specifically limited.
- the linear voice coil motor 10 includes a swing component 11, an elastic component 12, and upper and lower magnetic components 13 and 14 that are spaced up and down.
- the swing component 11 includes a swing substrate 110 between the upper magnetic element 13 and the lower magnetic element 14, a coil 111 provided on the plate surface of the swing substrate 110, and a left connecting rod 112 and a right connecting rod 113 respectively connected to the left and right sides of the swing substrate 110
- the coil 111 is fixedly connected to the swing substrate 110.
- the coil 111 When the coil 111 is under the force of the electromagnetic field, it will be subjected to a magnetic field force to drive the swing substrate 110 to move left and right in the horizontal direction, and the plate surface of the swing substrate 110 is parallel to the horizontal left and right directions.
- the planes formed by the magnetic element 13 and the lower magnetic element 14 are both arranged parallel to the horizontal direction.
- the north and south poles of the upper magnetic element 13 and the lower magnetic element 14 are located at the left and right ends of the upper magnetic element 13 or the lower magnetic element 14 respectively, and the polar directions are opposite.
- a stable electromagnetic field is formed between the upper magnetic element 13 and the lower magnetic element 14.
- the elastic component 12 includes a first left elastic element 120 and a first elastic element which are both connected to the left connecting rod 112 and are spaced from right to left and are all elastic.
- the magnetic elements 14 collectively generate an operating magnetic field, and when the coil 111 is energized, it will receive a force to the left or right under the action of the operating magnetic field.
- both the upper magnetic element 13 and the lower magnetic element 14 are permanent magnets, which are not easily demagnetized or easily magnetized, which ensures that the linear voice coil motor 10 can move stably in the horizontal direction for a long time.
- the linear voice coil motor 10 provided by the present invention divides the elastic component 12 into a first left elastic member 120 and a second left elastic member 121 located at the left end of the swing base 110, and located at the right end of the swing base 110
- the first right elastic member 122 and the second right elastic member 123, the linear voice coil motor 10 has two sets of symmetrically arranged elastic members.
- the traditional linear voice coil motor 10 often uses the left and right movement of a single group of shrapnel type voice coil motors to change the effective optical path in the detection optical path or the pump optical path.
- the present invention adds a set of elastic members, and the elastic properties of the two sets of elastic members are different.
- the elastic properties of the first left elastic member 120 and the first right elastic member 122 are smaller than those of the second left elastic member 121 and the second right elastic member 123
- the force hindering the movement of the swinging substrate 110 is very high Therefore, the acceleration or deceleration of the swinging substrate 110 during acceleration or deceleration is very small. It can be considered that the swinging substrate 110 is moving at a constant speed.
- the first left elastic member 120 and the first right elastic member 122 are mainly used to fix the linear voice coil motor 10 to prevent the swing substrate 110 from shaking back and forth and up and down during the movement process, that is, to ensure that the swing substrate 110 can only move in the left and right directions .
- the second left elastic member 121 and the second right elastic member 123 have large elastic coefficients, which accelerates the acceleration and deceleration of the voice coil motor, increases the area where the speed of the voice coil motor changes smoothly, and makes the voice coil motor move in the middle
- the moving speed inside tends to move at a constant speed, so that when the detection pulse samples the terahertz wave, the sampling method is closer to the equal interval sampling, and the obtained terahertz wave signal is more true and accurate.
- first left elastic member 120 and the first right elastic member have the same elastic structure
- the second left elastic member 121 and the second right elastic member 123 have the same elastic structure
- the first left elastic member 120 and the first The elastic structures of the right elastic members 122 are the same, which ensures that when the swinging substrate 110 starts to move left or right, the first left elastic member 120 or the first right elastic member 122 gives the swinging substrate the same amount of initial elasticity as the swinging substrate 110
- the initial speed when moving to the left or right is the same, and the elastic structures of the second left elastic member 121 and the second right elastic member 123 are set the same to ensure that the first left elastic member 120 and the second left elastic member 121, the first When the right elastic member 122 and the second right elastic member 123 are in contact with each other, the second left elastic member 121 and the second right elastic member 123 are compressed to have the same elastic force, which ensures that the swinging substrate 110 swings left or right During the process, the acceleration motion process and the deceleration motion process are consistent, which ensure
- the distance between the first left elastic member 120 and the swing substrate 110 is equal to the distance between the first right elastic member 122 and the swing substrate 110, and the distance between the first left elastic member 120 and the second left elastic member 121 is equal to The distance between the first right elastic member 122 and the second right elastic member 123. It is ensured that the linear voice coil motor 10 is symmetrically designed.
- the first left elastic member 120, the second left elastic member 121 and the first right elastic member 122, the second left elastic member 121 are bilaterally symmetrical.
- first left elastic member 120, the second left elastic member 121, the first right elastic member 122, and the second right elastic member 123 have an elastic sheet structure.
- the elastic sheet has the advantages of being easy to bend and easy to manufacture, not only for the swing substrate 110
- the limit function can also support the swing substrate 110, the left connecting rod 112, and the right connecting rod 113 to carry the horizontal movement of the moving substrate 110 in the horizontal direction.
- first left elastic member 120, the second left elastic member 121, the first right elastic member 122, and the second right elastic member 123 are compression spring structures.
- the spring structure can generate large elastic deformations when loaded.
- the mechanical work or kinetic energy is converted into deformation energy, and the deformation of the spring disappears after unloading and it is easy to return to its original shape.
- the deformation energy is converted into mechanical work or kinetic energy, which satisfies the load-bearing and limiting characteristics required for the motion mode of the swinging substrate 110.
- first left elastic member 120, the second left elastic member 121, the first right elastic member 122 and the second right elastic member 123 are all arranged perpendicular to the left connecting rod 112 and the right connecting rod 113.
- first left elastic member 120 and the first right elastic member 122 are respectively provided with a first left connecting hole 1200 and a first right connecting hole 1220 at the center
- second left elastic member 121 and the second right elastic member 123 are A second left through hole 1210 and a second right through hole 1230 are respectively provided at the center
- the left connecting rod 112 penetrates the first left connecting hole 1200 and the second left through hole 1210, respectively
- the right connecting rod 113 penetrates the first The right connecting hole 1220 and the second right through hole 1230.
- the first left connecting hole 1200 and the first right connecting hole 1220 are fixedly disposed with the left connecting rod 112 and the right connecting rod 113, respectively, and there is no gap between them.
- the fixation makes the movement of the voice coil motor 10 more stable.
- first left elastic member 120 the second left elastic member 121, the first right elastic member 122, and the second right elastic member 123 are provided with fixing holes 124 for fixing the first left elastic member 120, a second left elastic member 121, a first right elastic member 122, and a second right elastic member 123.
- the upper magnetic element 13 and the lower magnetic element 14 are symmetrically arranged with the swing axis of the swing substrate 110 as the central axis, and the magnetic fields generated by the upper magnetic element 13 and the lower magnetic element 14 have the same size and are evenly distributed.
- the motion law of the swing base 110 in the linear voice coil motor 10 provided by the present invention is:
- the coil 111 When the coil 111 is energized, the coil 111 obtains an initial speed and drives the swinging substrate 110 to move. Since the elastic coefficient of the first left elastic member 120 is much smaller than that of the second left elastic member 121, the swinging substrate 110 will perform a deceleration movement, and The deceleration is relatively slow, and it can be considered as a uniform movement. When the first left elastic member 120 is in contact with the second left elastic member, and the speed of the swinging substrate 110 hardly changes, the swinging substrate 110 will continue to move to the left. At this time, the swinging substrate 110 is jointly received by the first left elastic member 120 The resistance of the second left elastic member 121 is greater than that of the resistance of the first left elastic member 120 alone, which accelerates the attenuation of the speed of swinging the substrate 110.
- the speed of the swing substrate 110 is reduced to zero, due to the elastic potential energy of the first left elastic member 120 and the second left elastic member 121 (the resultant force of the swing substrate 110 at this time is to the right), and because the second The elastic potential energy of the left elastic member 121 is relatively large, and at this time, the oscillating substrate 110 performs a rapid acceleration motion.
- the swinging base 110 is only subjected to the action of the first left elastic member 120. Compared with the two elastic pieces acting together, the force becomes smaller.
- the swinging base 110 With the force of the left elastic member 120 to the left, the swinging base 110 will still accelerate, but the acceleration is relatively small, the speed change is relatively smooth, and it can almost be regarded as a uniform movement.
- the swing substrate 110 moves to the center position of the entire device, since the sum of forces in the left and right directions is zero, the acceleration is zero and the acceleration ends. Since the speed cannot be abruptly changed, the swing base 110 will continue to move to the right. At this time, the first right elastic member 122 will hinder the swing base 110 from moving to the right, and the swing base 110 performs the deceleration movement. Since the elastic force of the first right elastic member 122 is extremely small, The swinging substrate 110 may be considered to continue to move at a constant speed. The swing substrate 110 continues to move to the right.
- the swing substrate 110 When the right first elastic member 122 and the second right elastic member 123 are in contact on the right side, since the second right elastic member 123 has a high elastic coefficient, the swing substrate 110 performs a rapid deceleration movement until it swings The speed of the substrate 110 is reduced to zero.
- the swing substrate 110 When the speed of the swing substrate 110 is reduced to zero, due to the elastic potential energy of the first right elastic member 122 and the second right elastic member 123 (the combined force of the two elastic pieces acting on the swing substrate 110 is to the left), the swing substrate 110 will Do a quick acceleration motion, once the first right elastic member 122 and the second right elastic member 123 are separated, since the swinging substrate 110 is only subjected to the force of the first right elastic member 122, the acceleration of the swinging substrate 110 decreases, and the swinging substrate 110 The speed increase becomes relatively slow, which can be considered as a uniform movement. When the swinging substrate 110 reaches the center of the device, the acceleration ends because the force is zero.
- the swinging base 110 will continue to move to the left, do a deceleration motion, and repeat the process just now. In this way, the oscillating base plate 110 will perform slow deceleration-fast deceleration-fast acceleration-slow acceleration-slow acceleration-slow deceleration-fast deceleration-fast acceleration-slow acceleration periodic motion under the action of two sets of shrapnel.
- the area of the smooth speed of the dual-group shrapnel voice coil motor is larger.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
一种直线音圈电机装置，包括直线音圈电机（10）以及后向回反射镜（20），直线音圈电机（10）包括摆动组件（11）、弹性组件（12）以及上下间隔设置的上磁性元件（13）和下磁性元件（14），摆动组件（11）包括位于上磁性元件（13）和下磁性元件（14）之间的摆动基板（110）、设置于摆动基板（110）的线圈（111）以及分别连接于摆动基板（110）左右两侧的左连接杆（112）和右连接杆（113），弹性组件（12）包括均与左连接杆（112）连接的第一左弹性件（120）和第二左弹性件（121），以及均与右连接杆（113）连接的第一右弹性件（122）和第二右弹性件（123）。通过增加一组弹性件，加快了音圈电机（10）的加速和减速过程，使得探测脉冲在采样太赫兹波时，获得的太赫兹波信号更加真实、准确。
Description
本发明属于太赫兹光学技术领域，具体涉及一种直线音圈电机。
太赫兹波光学***主要由两个部分组成，一部分是太赫兹波的辐射，另一部分是太赫兹波的探测。其中太赫兹波的探测是利用探测脉冲与太赫兹脉冲相互作用，获得太赫兹脉冲在不同相位点的信息，然后将每个点的信息组合，得到一个完整的太赫兹波形。在改变太赫兹脉冲相对位置的过程中，一般需要通过一个移动装置来改变一路光的有效光程从而改变探测脉冲与太赫兹脉冲相互作用的位置，得到太赫兹波。
现有技术中，一般采用单组弹片式的直线音圈电机的左右运动来改变光程，直线音圈电机往左和往右移动都可以得到一个太赫兹波形。这种直线音圈电机的运动方式存在的缺点为：直线音圈电机在水平方向上不能一直保持匀速运动会导致获取的太赫兹波不够准确和真实。
发明内容
本发明的目的在于提供一种直线音圈电机，以解决现有技术由于音圈电机的运动速度不够稳定，导致的得到的太赫兹波不够准确和真实的技术问题。
为实现上述目的，本发明采用的技术方案是：提供一种直线音圈电机装置，用于太赫兹波形的获取，所述直线音圈电机包括摆动组件、弹性组件以及上下间隔设置的上磁性元件和下磁性元件，所述摆动组件包括位于 所述上磁性元件和所述下磁性元件之间的摆动基板、设置于所述摆动基板上的线圈以及分别连接于所述摆动基板左右两侧的左连接杆和右连接杆，所述摆动基板的板面平行于水平左右方向，所述上磁性元件和所述下磁性元件的南北两极均位于所述上磁性元件或所述下磁性元件的左右两端且极向相反，所述弹性组件包括与所述左连接杆固定连接的第一左弹性件以及与所述右连接杆固定连接的第一右弹性件，所述弹性组件还包括与所述第一左弹性件从右往左间隔设置且具有弹性的第二左弹性件以及与所述第一右弹性件从左往右间隔设置且具有弹性的第二右弹片，其中，所述左连接杆背离所述摆动组件的杆端与所述后向回反射镜连接，所述上磁性元件和所述下磁性元件共同产生作业磁场，所述线圈通电时在所述作业磁场的作用下将受到向左或向右的作用力。
进一步地，所述第一左弹性件与所述第一右弹性件具有相同的弹性结构，所述第二左弹性件与所述第二右弹性件采用相同的弹性结构。
进一步地，第一左弹性件到所述摆动基板的距离等于所述第一右弹性件到所述摆动基板的距离，所述第一左弹性件与所述第二左弹性件之间的间距等于所述第一右弹性件与所述第二右弹性件之间的间距。
进一步地，所述第一左弹性件、所述第二左弹性件、所述第一右弹性件和所述第二右弹性件为弹片结构。
进一步地，所述第一左弹性件、所述第二左弹性件、所述第一右弹性件和所述第二右弹性件为压缩弹簧结构。
进一步地，所述第一左弹性件、所述第二左弹性件、所述第一右弹性件和所述第二右弹性件均与所述左连接杆和所述右连接杆垂直设置。
进一步地，所述第一左弹性件与所述第一右弹性件中心位置处分别开设有第一左连接孔和第一右连接孔，所述第二左弹性件与所述第二右弹性件于中心位置处分别开设有第二左通孔与第二右通孔，所述左连接杆分别贯穿所述第一左连接孔、第二左通孔，所述右连接杆分别贯穿所述第一右 连接孔、第二右通孔。
进一步地，所述第一左连接孔与所述左连接杆过盈配合并紧固连接，所述第一右连接孔与所述右连接杆过盈配合并紧固连接，所述第二左通孔与所述左连接杆之间具有供所述左连接杆于所述第二左通孔内左右移动的间隙，所述第二右通孔与所述右连接杆之间具有供所述右连接杆于所述第二右连接孔内左右移动的间隙。
进一步地，所述上磁性元件和所述下磁性元件以所述摆动基板的摆动轴线为中心轴线对称设置。
本发明提供的有益效果在于：与现有技术相比，加快了音圈电机的加速和减速过程，增加了音圈电机速度变化平缓的区域，使音圈电机在中间移动区域内的移动速度更加趋向于匀速运动，探测脉冲在采样太赫兹波时，采样方式更接近于等间距采样，获得更加真实的太赫兹波信号。
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的直线音圈电机的整体结构示意图；
图2为本发明实施例提供的直线音圈电机的运动规律曲线示意图。
其中，图中各附图标记：
| 标号 | 名称 | 标号 | 名称 |
| 10 | 直线音圈电机 | ||
| 11 | 摆动组件 | ||
| 110 | 摆动基板 | 111 | 线圈 |
| 112 | 左连接杆 | 113 | 右连接杆 |
| 12 | 弹性组件 |
| 120 | 第一左弹性件 | 1200 | 第一左连接孔 |
| 121 | 第二左弹性件 | 1210 | 第二左通孔 |
| 122 | 第一右弹性件 | 1220 | 第一右连接孔 |
| 123 | 第二右弹性件 | 1230 | 第二右通孔 |
| 124 | 固定孔 | ||
| 13 | 上磁性元件 | ||
| 14 | 下磁性元件 | ||
| 20 | 后向回反射镜 |
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者间接在该另一个元件上。当一个元件被称为是“连接于”另一个元件，它可以是直接连接到另一个元件或间接连接至该另一个元件上。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
请参阅图1，现对本发明提供的直线音圈电机进行说明，所述直线音圈电机10，包括摆动组件11、弹性组件12以及上下间隔设置的上磁性元件13和下磁性元件14，摆动组件11包括位于上磁性元件13和下磁性元件14之间的摆动基板110、设置于摆动基板110板面上的线圈111以及分别连接于摆动基板110左右两侧的左连接杆112和右连接杆113，线圈111与摆动 基板110固定连接，当线圈111在电磁场的作用力下，会受到磁场力，带动摆动基板110在水平方向上左右移动，并且摆动基板110的板面平行于水平左右方向，上磁性元件13与下磁性元件14所形成的平面均与水平方向平行设置，上磁性元件13和下磁性元件14的南北两极分别位于上磁性元件13或下磁性元件14左右两端且极向相反，并且上磁性元件13与下磁性元件14之间形成一稳定的电磁场，弹性组件12包括均与左连接杆112连接并从右往左方向间隔设置且均具有弹性的第一左弹性件120和第二左弹性件121，以及均与右连接杆113连接并从左往右方向间隔设置且均具有弹性的第一右弹性件122和第二右弹性件123，其中，由于上磁性元件13和下磁性元件14共同产生作业磁场，线圈111通电时在作业磁场的作用下将受到向左或向右的作用力。
优选地，所述上磁性元件13和所述下磁性元件14均为永久磁体，不容易失磁，也不容易被磁化，保证了直线音圈电机10能够长时间在水平方向稳定运动。
本发明提供的直线音圈电机10，与现有技术相比，通过将弹性组件12分为位于摆动基板110左端的第一左弹性件120和第二左弹性件121，位于摆动基板110右端的第一右弹性件122和第二右弹性件123，直线音圈电机10具有了两组对称设置的弹性件。而传统的直线音圈电机10往往采用单组弹片式的音圈电机的左右运动来改变探测光路或泵浦光路中的有效光程，音圈电机往左和往右移动都可以得到一个太赫兹波形，这种音圈电机的运动方式不能保证音圈电机在水平方向上一直保持匀速运动，这会导致采样不均匀，获得的太赫兹波不够准确和真实。本发明增加了一组弹性件，并且两组弹性件的弹性性能大小不同，第一左弹性件120与第一右弹性件122的弹性性能小于第二左弹性件121和第二右弹性件123的弹性性能，当摆动基板110以一定初速度向左或者向右移动时，由于第一左弹性件120和第一右弹性件122的弹性件系数很小，阻碍摆动基板110移动的作用力很 小，故摆动基板110在做加速或减速运动时，加速度或减速度非常小，可以认为此时的摆动基板110是匀速运动。第一左弹性件120和第一右弹性件122主要作用是对直线音圈电机10进行固定，避免摆动基板110在运动过程中前后、上下晃动，即保证摆动基板110只能在左右方向上移动，第二左弹性件121和第二右弹性件123的弹性系数较大，加快了音圈电机的加速和减速过程，增加了音圈电机速度变化平缓的区域，使音圈电机在中间移动区域内的移动速度更加趋向于匀速运动，使得探测脉冲在采样太赫兹波时，采样方式更接近于等间距采样，获得的太赫兹波信号更加真实、准确。
进一步地，第一左弹性件120与第一右弹性件具有相同的弹性结构，第二左弹性件121与第二右弹性件123具有相同的弹性结构，通过将第一左弹性件120与第一右弹性件122的弹性结构相同设置，保证了摆动基板110开始向左或向右运动时，第一左弹性件120或第一右弹性件122给予摆动基板相同大小的初始弹力，摆动基板110向左或向右运动时的初始速度大小相同，将第二左弹性件121与第二右弹性件123的弹性结构相同设置，保证了第一左弹性件120与第二左弹性件121、第一右弹性件122与第二右弹性件123相接触时第二左弹性件121、第二右弹性件123受到挤压所产生的弹性力大小相同，保证了摆动基板110向左或向右摆动过程中，加速运动过程和减速运动过程都保持一致，保证了直线音圈电机10在水平方向运动的平稳性，增加摆动基板110匀速运动的区域，在探测脉冲采样太赫兹波时，采样方式更接近于等间距采样，获得的太赫兹波信号更加真实、准确。
进一步地，第一左弹性件120到摆动基板110的距离等于所述第一右弹性件122到摆动基板110的距离，第一左弹性件120与第二左弹性件121之间的间距等于所述第一右弹性件122与所述第二右弹性件123之间的间距。保证了直线音圈电机10为对称设计，第一左弹性件120、第二左弹性 件121与第一右弹性件122、第二左弹性件121左右对称，当摆动基板110在获得移动初速度后，摆动基板往左的运动曲线和往右的运动曲线是相同的，便于对太赫兹波进行采样。
进一步地，第一左弹性件120、第二左弹性件121、第一右弹性件122和第二右弹性件123为弹片结构，弹片具有容易弯曲、便于制造的优点，不仅对摆动基板110实施限位功能，还可以对摆动基板110以及左连接杆112、右连接杆113起到支撑的作用，承载移动基板110在水平方向上的左右移动。
进一步地，第一左弹性件120、第二左弹性件121、第一右弹性件122和第二右弹性件123为压缩弹簧结构，弹簧结构在受载时能产生较大的弹性变形，把机械功或动能转化为变形能，而卸载后弹簧的变形消失并容易回复原状，将变形能转化为机械功或动能，满足摆动基板110的运动方式所需要的承载、限位特点。
进一步地，第一左弹性件120、第二左弹性件121、第一右弹性件122和第二右弹性件123均与左连接杆112和右连接杆113垂直设置。
进一步地，第一左弹性件120与第一右弹性件122中心位置处分别开设有第一左连接孔1200和第一右连接孔1220，第二左弹性件121与第二右弹性件123于中心位置处分别开设有第二左通孔1210与第二右通孔1230，左连接杆112分别贯穿第一左连接孔1200、第二左通孔1210，右连接杆113分别贯穿所述第一右连接孔1220、第二右通孔1230。第一左连接孔1200、第一右连接孔1220分别与左连接杆112、右连接杆113固定设置，彼此之间并无间隙。通过在第一左弹性件120中心位置处开设第一左连接孔1200、在第一右弹性件122中心位置处开设第一右连接孔1220，对左连接杆112和右连接杆113进行支撑、固定，使得音圈电机10的运动更加稳固。
进一步地，第一左弹性件120、第二左弹性件121、第一右弹性件122、第二右弹性件123的顶端和底端均设有固定孔124，用于固定第一左弹性件 120、第二左弹性件121、第一右弹性件122、第二右弹性件123。
进一步地，上磁性元件13和下磁性元件14以摆动基板110的摆动轴线为中心轴线对称设置，上磁性元件13和下磁性元件14所产生的磁场大小相同，分布均匀。
请一并参阅图1以及图2，本发明所提供的直线音圈电机10中的摆动基板110的运动规律为：
(1)音圈电机从中心位置向左运动
当给线圈111通电后，线圈111获得一个初速度，带动摆动基板110运动，由于第一左弹性件120的弹性系数远远小于第二左弹性件121，摆动基板110将会做减速运动，并且减速相对较慢，可认为是匀速运动。当第一左弹性件120与第二左弹性件相接触后，且摆动基板110的速度几乎没有变化，摆动基板110将会继续向左运动，此时摆动基板110共同受到第一左弹性件120和第二左弹性件121的阻力，相对于只受到第一左弹性件120的阻力作用更大，加快了摆动基板110的速度衰减。
(2)音圈电机从最左端向右运动
当摆动基板110的速度减为零后，由于第一左弹性件120和的第二左弹性件121的弹性势能的存在(此时摆动基板110所受合力向右)，并且由于此时第二左弹性件121的弹性势能相对较大，此时摆动基板110做快加速运动。一旦第一左弹性件120与第二左弹性件121分离后，摆动基板110就只受第一左弹性件120的作用，相比两种弹片共同作用时受力变小，但是由于还受第一左弹性件120向左的力，摆动基板110任然会做加速运动，只是加速度比较小，速度变化比较平缓，几乎可以认为是匀速运动。当摆动基板110运动到整个装置的中心位置时，由于左右方向上受力和为零，故加速度为零，加速结束。由于速度不能突变，摆动基板110会继续向右运动，此时第一右弹性件122会阻碍摆动基板110向右运动，摆动基板110做减速运动，由于第一右弹性件122的弹力特别小，摆动基板110 可认为继续做匀速运动。摆动基板110继续向右运动，当右侧第一右弹性件122与第二右弹性件123相接触时，由于第二右弹性件123具有高弹性系数，摆动基板110做快减速运动，直到摆动基板110的速度减为零。
(3)音圈电机从最右端向中心位置运动
当摆动基板110的速度减小到零后，由于第一右弹性件122和第二右弹性件123的弹性势能存在(两种弹片作用在摆动基板110上的合力向左)，摆动基板110会做快加速运动，一旦第一右弹性件122和第二右弹性件123分离后，由于摆动基板110只受第一右弹性件122的作用力，摆动基板110的加速度减小，摆动基板110的速度增长变得相对缓慢，可以认为是匀速运动。当摆动基板110到达装置的中心时，由于受力为零，加速结束。
由于惯性的作用，摆动基板110会继续向左运动，做减速运动，重复刚才的过程。就这样，摆动基板110将会在两组弹片的作用下做慢减速-快减速-快加速-慢加速-慢减速-快减速-快加速-慢加速的周期运动。通过此种摆动基板110运动方式，相比单组弹片式音圈电机运动速度的不均匀，双组弹片式音圈电机速度平缓的区域更大，当探测脉冲在摆动基板110的运动区间对太赫兹脉冲执行采样时，采样点的间隔变化很小，几乎可以认为是等时间间隔采样，获得的太赫兹波信号更加真实、准确。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。
Claims (10)
- 一种直线音圈电机装置，用于太赫兹波形的获取，其特征在于，所述直线音圈电机包括摆动组件、弹性组件以及上下间隔设置的上磁性元件和下磁性元件，所述摆动组件包括位于所述上磁性元件和所述下磁性元件之间的摆动基板、设置于所述摆动基板上的线圈以及分别连接于所述摆动基板左右两侧的左连接杆和右连接杆，所述摆动基板的板面平行于左右方向，所述上磁性元件和所述下磁性元件的南北两极均位于所述上磁性元件或所述下磁性元件的左右两端且极向相反，所述弹性组件包括与所述左连接杆固定连接的第一左弹性件以及与所述右连接杆固定连接的第一右弹性件，所述弹性组件还包括与所述第一左弹性件从右往左间隔设置且具有弹性的第二左弹性件以及与所述第一右弹性件从左往右间隔设置且具有弹性的第二右弹性件，其中，所述左连接杆背离所述摆动组件的杆端与所述后向回反射镜连接，所述上磁性元件和所述下磁性元件共同产生作业磁场，所述线圈通电时在所述作业磁场的作用下将受到向左或向右的作用力。
- 如权利要求1所述的直线音圈电机装置，其特征在于，所述第一左弹性件与所述第一右弹性件具有相同的弹性结构，所述第二左弹性件与所述第二右弹性件具有相同的弹性结构。
- 如权利要求2所述的直线音圈电机，其特征在于，所述第一左弹性件到所述摆动基板的距离等于所述第一右弹性件到所述摆动基板的距离，所述第一左弹性件与所述第二左弹性件之间的间距等于所述第一右弹性件与所述第二右弹性件之间的间距。
- 如权利要求3所述的直线音圈电机，其特征在于，所述第一左弹性件、所述第二左弹性件、所述第一右弹性件和所述第二右弹性件为弹片结构。
- 如权利要求4所述的直线音圈电机，其特征在于，所述第一左弹性 件、所述第二左弹性件、所述第一右弹性件和所述第二右弹性件为压缩弹簧结构。
- 如权利要求5所述的直线音圈电机，其特征在于，所述第一左弹性件、所述第二左弹性件、所述第一右弹性件和所述第二右弹性件均与所述左连接杆和所述右连接杆垂直设置。
- 如权利要求6所述的直线音圈电机，其特征在于，所述第一左弹性件与所述第一右弹性件中心位置处分别开设有第一左连接孔和第一右连接孔，所述第二左弹性件与所述第二右弹性件于中心位置处分别开设有第二左通孔与第二右通孔，所述左连接杆分别贯穿所述第一左连接孔、第二左通孔，所述右连接杆分别贯穿所述第一右连接孔、第二右通孔。
- 如权利要求7所述的直线音圈电机，其特征在于，所述第一左连接孔与所述左连接杆过盈配合并紧固连接，所述第一右连接孔与所述右连接杆过盈配合并紧固连接，所述第二左通孔与所述左连接杆之间具有供所述左连接杆于所述第二左通孔内左右移动的间隙，所述第二右通孔与所述右连接杆之间具有供所述右连接杆于所述第二右连接孔内左右移动的间隙。
- 如权利要求8所述的直线音圈电机，其特征在于，所述第一左弹性件、第二左弹性件、第一右弹性件、第四右弹性件的顶端和底端均设有固定孔。
- 如权利要求1所述的直线音圈电机，其特征在于，所述上磁性元件和所述下磁性元件以所述摆动基板的摆动轴线为中心轴线对称设置。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811646305.4 | 2018-12-29 | ||
| CN201811646305.4A CN109450217B (zh) | 2018-12-29 | 2018-12-29 | 一种直线音圈电机 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020135699A1 true WO2020135699A1 (zh) | 2020-07-02 |
Family
ID=65539982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2019/129135 WO2020135699A1 (zh) | 2018-12-29 | 2019-12-27 | 一种直线音圈电机 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109450217B (zh) |
| WO (1) | WO2020135699A1 (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450217B (zh) * | 2018-12-29 | 2024-05-28 | 深圳市华讯方舟光电技术有限公司 | 一种直线音圈电机 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575393A (zh) * | 2012-08-03 | 2014-02-12 | 中国科学院深圳先进技术研究院 | 光学延迟线装置及太赫兹时域光谱*** |
| CN105581773A (zh) * | 2014-10-21 | 2016-05-18 | 深圳先进技术研究院 | 一种太赫兹成像*** |
| CN105656275A (zh) * | 2016-03-11 | 2016-06-08 | 歌尔声学股份有限公司 | 一种线性振动马达 |
| CN105680663A (zh) * | 2016-04-19 | 2016-06-15 | 金龙机电股份有限公司 | 一种线性电机 |
| CN106533318A (zh) * | 2016-10-31 | 2017-03-22 | 深圳市太赫兹***设备有限公司 | 音圈电机控制方法、***及控制器 |
| US20170176710A1 (en) * | 2015-12-18 | 2017-06-22 | Industrial Technology Research Institute | Voice coil motor |
| CN206945533U (zh) * | 2017-07-01 | 2018-01-30 | 上海朗研光电科技有限公司 | 小型化太赫兹时域光谱仪 |
| CN108206619A (zh) * | 2018-02-11 | 2018-06-26 | 瑞声科技(新加坡)有限公司 | 线性振动电机 |
| CN109450217A (zh) * | 2018-12-29 | 2019-03-08 | 深圳市太赫兹科技创新研究院 | 一种直线音圈电机 |
| CN209731040U (zh) * | 2018-12-29 | 2019-12-03 | 深圳市太赫兹科技创新研究院 | 一种直线音圈电机 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979993B (zh) * | 2015-05-28 | 2017-12-22 | 浙江省东阳市东磁诚基电子有限公司 | 一种高振感水平振动线性马达 |
| JP6966872B2 (ja) * | 2017-05-22 | 2021-11-17 | 株式会社リコー | テラヘルツ波発生装置、検査装置 |
-
2018
- 2018-12-29 CN CN201811646305.4A patent/CN109450217B/zh active Active
-
2019
- 2019-12-27 WO PCT/CN2019/129135 patent/WO2020135699A1/zh active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575393A (zh) * | 2012-08-03 | 2014-02-12 | 中国科学院深圳先进技术研究院 | 光学延迟线装置及太赫兹时域光谱*** |
| CN105581773A (zh) * | 2014-10-21 | 2016-05-18 | 深圳先进技术研究院 | 一种太赫兹成像*** |
| US20170176710A1 (en) * | 2015-12-18 | 2017-06-22 | Industrial Technology Research Institute | Voice coil motor |
| CN105656275A (zh) * | 2016-03-11 | 2016-06-08 | 歌尔声学股份有限公司 | 一种线性振动马达 |
| CN105680663A (zh) * | 2016-04-19 | 2016-06-15 | 金龙机电股份有限公司 | 一种线性电机 |
| CN106533318A (zh) * | 2016-10-31 | 2017-03-22 | 深圳市太赫兹***设备有限公司 | 音圈电机控制方法、***及控制器 |
| CN206945533U (zh) * | 2017-07-01 | 2018-01-30 | 上海朗研光电科技有限公司 | 小型化太赫兹时域光谱仪 |
| CN108206619A (zh) * | 2018-02-11 | 2018-06-26 | 瑞声科技(新加坡)有限公司 | 线性振动电机 |
| CN109450217A (zh) * | 2018-12-29 | 2019-03-08 | 深圳市太赫兹科技创新研究院 | 一种直线音圈电机 |
| CN209731040U (zh) * | 2018-12-29 | 2019-12-03 | 深圳市太赫兹科技创新研究院 | 一种直线音圈电机 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109450217A (zh) | 2019-03-08 |
| CN109450217B (zh) | 2024-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103528683B (zh) | 一种用于傅立叶变换红外光谱仪的动镜扫描装置 | |
| Chu et al. | Dual-stimulus magnetoelectric energy harvesting | |
| WO2020135699A1 (zh) | 一种直线音圈电机 | |
| WO2020015472A1 (zh) | 电磁激励器以及屏幕发声装置 | |
| US11758331B2 (en) | Balanced vibration system | |
| CN110764253B (zh) | 一种二维矢量扫描微镜 | |
| US9564838B2 (en) | Magnetic levitation device for prolonged rotation | |
| WO2021003796A1 (zh) | 换能器振动悬挂***、换能器及电子设备 | |
| RU2019141981A (ru) | Электромагнитный преобразователь энергии | |
| WO2023201853A1 (zh) | Led显示模组及led显示模组拆卸件 | |
| CN105846644A (zh) | 永磁悬浮翼段气动弹性振动发电装置 | |
| CN105551836B (zh) | 一种二维微动平台装置 | |
| CN209731040U (zh) | 一种直线音圈电机 | |
| CN104009754A (zh) | 钢丝绳晶振减振装置 | |
| CN212850206U (zh) | 一种线性振动马达 | |
| CN110513422B (zh) | 一种新型杠杆式非线性电涡流阻尼器 | |
| CN209182524U (zh) | 毫米波/太赫兹波安检仪及其反射板扫描驱动装置 | |
| CN112653286A (zh) | 一种并联式二自由度电磁驱动柔性运动台 | |
| CN208224846U (zh) | 一种平面运动倒立摆 | |
| CN114791665A (zh) | 电磁驱动式高速偏转镜*** | |
| CN208999973U (zh) | 一种永磁位置指示器 | |
| CN101947779B (zh) | 一种混合驱动式微小机器人的结构 | |
| CN201808062U (zh) | 一种混合驱动式微小机器人的结构 | |
| CN102195438B (zh) | 驱动物体直线运动装置的实现方法与直线电动机 | |
| CN206195652U (zh) | 三维线性声表面波马达 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19902834 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 19902834 Country of ref document: EP Kind code of ref document: A1 |