WO2020228730A1 - 驱动装置、相机模组、电子设备及驱动装置组装方法 - Google Patents
驱动装置、相机模组、电子设备及驱动装置组装方法 Download PDFInfo
- Publication number
- WO2020228730A1 WO2020228730A1 PCT/CN2020/089973 CN2020089973W WO2020228730A1 WO 2020228730 A1 WO2020228730 A1 WO 2020228730A1 CN 2020089973 W CN2020089973 W CN 2020089973W WO 2020228730 A1 WO2020228730 A1 WO 2020228730A1
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- WIPO (PCT)
- Prior art keywords
- base
- housing
- driving device
- hall element
- carrier
- Prior art date
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/10—Power-operated focusing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
Definitions
- the present invention relates to the field of imaging technology, in particular to a driving device, a camera module, an electronic device and a driving device assembly method.
- the camera module includes a fixed focal length (FF) camera module and an auto-focus (AF) camera module.
- FF focal length
- AF auto-focus
- the lens can be moved by a driving device to achieve focusing.
- the voice coil motor of the focus camera module has two types: open loop motor and closed loop motor.
- the open-loop motor changes the magnetic field force by the magnitude of the current so that the motor pushes the lens to shift and focus, but the current input by the motor is displacement. There is no feedback process, there is an error, and the accuracy is not enough.
- a Hall chip is added to the closed loop motor. The Hall chip can sense the actual displacement of the lens. The motor can continuously adjust the motor and adjust the position of the lens according to the feedback of the Hall chip to keep the actual position of the lens consistent with the input position.
- the base structure is covered by the housing, and the Hall element is arranged on the side of the base away from the housing, and needs to be installed on the side wall of the base in advance, and finally the base and the housing are glued together.
- the test will only be conducted after the drive unit is assembled and the base shell is glued. During the test, there is a poor performance AF (autofocus) motor structure or a poor performance structure. If this happens, it is not just the AF drive that is wasted.
- the device also includes Hall components, causing a great waste of cost.
- the object of the present invention is to provide a driving device, a camera module, an electronic device, and a driving device assembly method that can be installed with Hall elements to prevent waste.
- the present invention provides a driving device, which includes a base, a Hall element, and a housing.
- the housing is covered on the base.
- the base includes a base and a conductor.
- the Hall element is electrically connected to the conductor.
- the housing is provided with a notch, and the Hall element is exposed from the housing from the notch.
- the base body includes a side wall, the side wall is provided with an opening corresponding to the notch, and the Hall element is provided on the outer side of the side wall and is located in the opening The part is electrically connected with the conductor.
- the side wall has an inner and outer two-layer structure, which includes an inner layer and an outer layer, the edge of the inner layer extends beyond the edge of the outer layer, and the outer shell covers the edge of the inner layer .
- the base includes two opposite side walls.
- the driving device further includes a lower spring, a carrier, a coil, a magnet, and an upper spring.
- the lower spring is elastically arranged between the base and the carrier, and the carrier can be opposed to the base.
- Movably arranged on the base the upper spring is elastically arranged between the carrier and the housing, the coil is arranged on the carrier, the magnet is arranged in the housing, and the magnet Corresponding to the coil, the housing is arranged on the base, and the lower spring, the carrier, the coil, the magnet and the upper spring are all located in the housing.
- the electrical conductor includes a first terminal and a second terminal, the first terminal electrically connects an external circuit to the Hall element, and the second terminal enables the Hall element 11 It is electrically connected to the lower spring.
- the Hall element is installed in the opening, and the first terminal is at least partially exposed at the opening.
- the present invention also provides a camera module including the above-mentioned driving device.
- the present invention also provides a method for assembling a driving device, including the steps:
- the base includes a base and a conductor, and the shell is provided with a notch;
- a Hall element is provided, and the Hall element is installed on the base from the notch of the housing, so that the Hall element is electrically connected to the conductor , And exposed from the shell from the notch.
- the Hall element since the Hall element is exposed outside the housing, other components of the drive device can be assembled first when the drive device is assembled, and each of the drive device The Hall element is installed after the parameter measurement reaches the standard. If the measurement of the various parameters does not meet the standard, the Hall element can be installed, which avoids the waste of the Hall element and saves the cost.
- Fig. 1 is an assembly diagram of a driving device according to a first embodiment of the present invention.
- Fig. 2 is a perspective exploded schematic view of the driving device shown in Fig. 1.
- Fig. 3 is an exploded structure diagram of the base of the driving device shown in Fig. 1.
- Fig. 4 is a top view of the driving device shown in Fig. 1.
- Fig. 5 is a sectional view taken along the line V-V in Fig. 4;
- FIG. 6 is a flowchart of a method for assembling a driving device according to a second embodiment of the invention.
- the driving device provided in an embodiment of the present invention includes a base 10, a Hall element 11, a lower spring 12, a carrier 14, a coil 16, a magnet 18, an upper spring 20, and a housing 22.
- the lower spring 12 is elastically arranged between the base 10 and the carrier 14.
- the carrier 14 is movably disposed on the base 10 relative to the base 10.
- the upper spring 20 is elastically arranged between the carrier 14 and the housing 22, the coil 16 is arranged on the carrier 14, the magnet 18 is arranged in the housing 22, and the magnet 18 and the coil 16 are arranged correspondingly, the housing 22 is arranged on the base 10, and the lower spring 12.
- the carrier 14, the coil 16, the magnet 18 and the upper spring 20 are all located in the housing 22.
- the base 10 includes a base 102 and a conductor 104.
- the base 102 includes a side wall 106.
- the side wall 106 is provided with an opening 108.
- the Hall element 11 is provided on the outside of the side wall 106 and is electrically connected to the conductor 104 at the opening 108.
- Sexual connection
- the housing 22 is provided with a notch 222 at a position corresponding to the opening 108, and the Hall element 11 is exposed from the housing 22 from the notch 222.
- the base 10 includes two opposite side walls 106, and only one side wall 106 is provided with an opening 108. More specifically, the side wall 106 has an inner and outer two-layer structure, which includes an inner layer 111 and an outer layer 112. The edge of the inner layer 111 extends beyond the edge of the outer layer 112, so that when the shell 22 is placed on the base 10, the shell 22 covers the inner layer. At the edge of the layer 111, and the outer layer 112 is completely exposed, even if the shell 22 is provided with a notch 222, the sealing of the driving device can still be ensured, and dust and water vapor can be prevented from entering the drive from the connection between the shell 22 and the side wall 106. Inside the device.
- the base 102 of the base 10 is also provided with a protrusion 114 to fix the lower spring 12.
- the conductive body 104 of the base 10 is embedded in the base body 102, and specifically, it can be integrally formed by means of injection molding (insert molding).
- the conductor 104 includes a first terminal 116 and a second terminal 118.
- the first terminal 116 is electrically connected to the Hall element 11 to electrically connect the Hall element 11 with an external circuit
- the second terminal 118 is electrically connected to the lower spring 12.
- first terminals 116 there are four first terminals 116 corresponding to the positions of the opening 108.
- the first terminals 116 can be exposed at least partially at the opening 108 to be electrically connected to the Hall element 11 installed in the opening 108.
- second terminals 118 which are electrically connected to the Hall element 11.
- the conductor 104 further includes a connecting arm 119, and the second terminals 118 are respectively connected to the two connecting arms 119.
- the Hall element 11 may specifically include a Hall sensor.
- the Hall element 11 and the Hall element 11 are opposed to each other, and the position change of the position detection magnet not shown on the carrier 14 can be obtained and fed back to the driving device.
- the driving device can be continuously adjusted according to the feedback of the Hall element 11
- the driving device adjusts the position of the carrier 14 on which the lens is installed, so that the actual position of the lens is consistent with the input position, thereby realizing closed-loop control of the driving device.
- one second terminal 118 is electrically connected to one of the two lower springs 12 in turn, the other second terminal 118 is electrically connected to one lower spring 12, and one of the two lower springs 12 is electrically connected to One end of the coil 16 and the other lower spring 12 are electrically connected to the other end of the coil 16, and can be electrically connected to the coil 16 through the Hall element 11.
- the coil 16 can interact with the magnet 18 when the coil 16 is energized to generate a force to move the carrier 14 up and down to achieve focusing.
- the connecting arm 119 of one second terminal 118 is electrically connected to one of the two lower springs 12, and the other second terminal 118 is also electrically connected to the other lower spring 12 through the connecting arm 119.
- the carrier 14 is used to mount a lens (not shown) to drive the lens to move up and down to achieve focusing.
- the coil 16 is wound around the outside of the carrier 14. It can be understood that the coil 16 can also be arranged in other ways, and is not limited to being wound on the outside of the carrier 14.
- the magnet 18 is provided corresponding to the coil 16 and is located outside the coil 16. Specifically, the magnet 18 may be fixed in the housing 22. Specifically, in this embodiment, there are two magnets 18, and the two magnets 18 are provided on two opposite sides of the carrier 14.
- the upper spring 20 is an integral structure, one end of which is fixedly connected to the carrier 14 and the other end is fixedly connected to the housing 22 to allow the carrier 14 to move relative to the housing 22.
- the upper spring 20 includes a second inner ring, a second connecting deformation portion, and a second outer ring.
- the second connecting deformation portion is deformable and is connected between the second inner ring and the second outer ring.
- the ring is fixedly connected to the housing 22 and the second inner ring is fixedly connected to the carrier 14.
- the housing 22 is provided with outer walls 224 on the other two sides where the notch 222 is not provided, and the outer walls 224 are wrapped around the base 10 to ensure the tightness of the driving device.
- the Hall element 11 since the Hall element 11 is exposed outside the housing 22, when assembling the driving device, the other parts of the driving device can be assembled first, and the parameters of the driving device are measured to reach the standard before installing the Hall element 11. If the measurement of various parameters does not meet the standards, the Hall element 11 may not be installed, which avoids the waste of the Hall element and saves costs.
- the opening 108 may not be provided on the base 102, and the conductor 104 may be extended to the outside of the base 102.
- the Hall element 11 can also be installed through the notch 222 of the housing 22 and electrically connected to the conductor 104 .
- the driving device can also be a ball-type motor or a memory metal motor and other structural drive devices.
- a ball-type motor it may not include a lower spring, an upper spring, etc.
- a memory metal motor may not include a lower spring.
- the present invention also provides a camera module including the above-mentioned driving device.
- the present invention also provides an electronic device including the above-mentioned camera module.
- the present invention also provides a driving device assembly method. Please refer to FIG. 6.
- the driving device assembly method of the second embodiment of the present invention includes the following steps:
- the base 10 includes a base 102 and a conductor 104.
- the base 102 includes a side wall 106.
- the side wall 106 is provided with an opening 108.
- the housing 22 is provided with a notch 222 at a position corresponding to the opening 108.
- the structure of the drive device manufactured by the drive device assembly method is the same as the structure of the drive device of the first embodiment, and will not be repeated here.
- the Hall element 11 When the above parameters meet the standards, provide the Hall element 11, and install the Hall element 11 on the base 10 from the notch 222 of the housing 22, so that the Hall element 11 and the conductor 104 are electrically connected, and from the notch The part 222 is exposed outside the housing 22. Specifically, the Hall element 11 is provided on the outside of the side wall 106 and at the opening 108.
- the Hall element 11 is installed. If the measurement of the various parameters does not meet the standard, the Hall element 11 may not be installed. , To avoid the waste of the Hall element and save the cost.
- the driving device assembly method of the present invention can also be adapted to the assembly of other structures such as ball motors or memory metal motors.
- the upper spring and lower spring may not be included. Among them, it may not contain lower springs, coils, upper springs, magnets and other structures.
- the terms “installed”, “connected” and “connected” shall be interpreted broadly, for example, it may be a fixed connection, a detachable connection, or an integral connection; It is a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
- installed shall be interpreted broadly, for example, it may be a fixed connection, a detachable connection, or an integral connection; It is a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
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Abstract
一种驱动装置、相机模组、电子设备及驱动装置组装方法,驱动装置包括底座(10)、霍尔元件(11)和外壳(22),外壳(22)罩设于底座(10)上,底座(10)包括基体(102)和导电体(104),霍尔元件(11)与导电体(104)电性连接,外壳(22)开设有缺口部(222),霍尔元件(11)从缺口部(222)处露出于外壳(11)外。由于将霍尔元件(11)露出外壳(22)外,因此组装驱动装置时可先将驱动装置的其他部件组装完毕,并将驱动装置的各项参数测量达标后再安装霍尔元件(11),如果各项参数测量不达标则可不安装霍尔元件(11),避免了霍尔元件(11)的浪费,节约了成本。
Description
本发明涉及成像技术领域,特别是涉及一种驱动装置、相机模组、电子设备及驱动装置组装方法。
随着科学技术的进步,相机模组的应用越来越广泛,目前,除了相机,手机、电脑等电子设备上都配备了相机模组,以方便人们随时随地拍照,给人们的生活带来方便与乐趣。相机模组包括固定焦距(FF)相机模组和自动对焦(AF)相机模组,在自动对焦相机模组中,可通过驱动装置驱动镜头移动,实现对焦。
对焦相机模组的音圈马达有开环马达和闭环马达两种。开环马达是通过电流的大小来改变磁场力从而使马达推动镜头进行位移对焦,但马达输入的电流,输出的是位移,没有反馈过程,存在误差,精确度不够。闭环马达内增加了霍尔芯片,霍尔芯片可以感测镜头的实际位移,马达可根据霍尔芯片的反馈,持续调整马达,调节镜头的位置,使镜头的实际位置与输入的位置保持一致。
一种驱动装置中,底座结构被外壳包覆,霍尔元件设置于底座侧面远离外壳一侧,需要提前安装在底座侧壁上,最后将底座和外壳胶粘在一起。然而,驱动装置组装完成并且底座外壳胶粘后,才会进行测试,测试过程中存在不良性能AF(自动对焦)马达结构或者性能不良结构,如果出现这种情况,浪费的不仅仅是颗AF驱动装置,还包括霍尔元器件,造成成本的极大浪费。
前面的叙述在于提供一般的背景信息,并不一定构成现有技术。
发明内容
本发明的目的在于提供一种后装霍尔元件以防止浪费的驱动装置、 相机模组、电子设备及驱动装置组装方法。
本发明提供一种驱动装置,包括底座、霍尔元件和外壳,所述外壳罩设于所述底座上,所述底座包括基体和导电体,所述霍尔元件与所述导电体电性连接,所述外壳开设有缺口部,所述霍尔元件从所述缺口部处露出于所述外壳外。
在其中一实施例中,所述基体包括侧壁,所述侧壁上设有与所述缺口部对应的开口部,所述霍尔元件设于所述侧壁的外侧,且在所述开口部处与所述导电体电性连接。
在其中一实施例中,所述侧壁为内外两层结构,其包括内层和外层,所述内层的边缘超出所述外层的边缘,所述外壳覆盖所述内层的边缘处。
在其中一实施例中,所述底座包括两个相对的所述侧壁。
在其中一实施例中,所述驱动装置还包括下弹簧、载体、线圈、磁体和上弹簧,所述下弹簧弹性设于所述底座与所述载体之间,所述载体可相对所述底座移动地设于所述底座上,所述上弹簧弹性设于所述载体与所述外壳之间,所述线圈设于所述载体上,所述磁体设于所述外壳内,且所述磁体与所述线圈对应设置,所述外壳罩设于所述底座上,所述下弹簧、所述载体、所述线圈、所述磁体和所述上弹簧均位于所述外壳内。
在其中一实施例中,所述导电体包括第一端子和第二端子,所述第一端子使外部电路电性连接于所述霍尔元件,所述第二端子使所述霍尔元件11电性连接于所述下弹簧。
在其中一实施例中,所述霍尔元件安装于所述开口部内,所述第一端子至少部分裸露于所述开口部处。
在其中一实施例中,所述第二端子为两个,所述下弹簧为两个,一个所述第二端子依次电性连接于两个所述下弹簧中的一个,另一个所述第二端子电性连接于另一个所述下弹簧,两个所述下弹簧中的一个电性连接于所述线圈的一端,另一个所述下弹簧12与所述线圈16的另一端电性连接。
本发明还提供一种相机模组,包括上述驱动装置。
本发明还提供一种电子设备,包括上述相机模组。
本发明还提供一种驱动装置组装方法,包括步骤:
提供底座和外壳,并将其组装在一起,所述底座包括基体和导电体,所述外壳开设有缺口部;
测试驱动装置的各项参数,并判断各项参数是否达标;
所述各项参数达标时,提供霍尔元件,将所述霍尔元件从所述外壳的所述缺口部处安装于所述底座上,使所述霍尔元件与所述导电体电性连接,且从所述缺口部处露出于所述外壳外。
本发明的驱动装置、相机模组、电子设备和驱动装置组装方法中,由于将霍尔元件露出外壳外,因此组装驱动装置时可先将驱动装置的其他部件组装完毕,并将驱动装置的各项参数测量达标后再安装霍尔元件,如果各项参数测量不达标则可不安装霍尔元件,避免了霍尔元件的浪费,节约了成本。
图1为本发明第一实施例的驱动装置的组装图。
图2为图1所示驱动装置的立体分解示意图。
图3为图1所示驱动装置的底座分解结构示意图。
图4为图1所示驱动装置的顶视图。
图5为沿图4中V-V线的剖视图。
图6为本发明第二实施例的驱动装置组装方法的流程图。
下面结合附图和实施例,对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明,但不用来限制本发明的范围。
第一实施例
请参图1至图5,本发明一实施例中提供的驱动装置,包括底座10、霍尔元件11、下弹簧12、载体14、线圈16、磁体18、上弹簧20和外壳22。下弹簧12弹性设于底座10与载体14之间。载体14可相对底座10移动地设于底座10上。上弹簧20弹性设于载体14与外壳22之间,线圈16设于载体14上,磁体18设于外壳22内,且磁体18与线圈16对应设置,外壳22罩设于底座10上,下弹簧12、载体14、线圈16、磁体 18和上弹簧20均位于外壳22内。
底座10包括基体102和导电体104,基体102包括侧壁106,侧壁106上设有开口部108,霍尔元件11设于侧壁106的外侧,且在开口部108处与导电体104电性连接,
外壳22对应开口部108的位置开设有缺口部222,霍尔元件11从缺口部222处露出于外壳22外。
本实施例中,底座10包括两个相对的侧壁106,仅一个侧壁106上设有开口部108。更具体地,侧壁106为内外两层结构,其包括内层111和外层112,内层111的边缘超出外层112的边缘,这样外壳22罩设于底座10上时,外壳22覆盖内层111的边缘处,而将外层112完全露出,即使外壳22上开设有缺口部222,仍可保证驱动装置的密封性,防止灰尘、水汽等从外壳22与侧壁106的连接处进入驱动装置内部。
底座10的基体102上还设有凸柱114,以固定下弹簧12。
底座10的导电体104嵌设于基体102内,具体可通过注塑成型(insert molding)的方式一体成型。导电体104包括第一端子116和第二端子118,第一端子116电性连接于霍尔元件11,以将霍尔元件11与外部电路电性连接,第二端子118电性连接于下弹簧12,以将与下弹簧12电性连接的线圈16与霍尔元件11电性连接。
地,第一端子116为四个,对应设于开口部108的位置,第一端子116至少部分可裸露于开口部108处,以与安装于开口部108内的霍尔元件11电性连接。第二端子118为两个,与霍尔元件11电性连接,导电体104还包括连接臂119,第二端子118分别连接于两个连接臂119。
本实施例中,霍尔元件11具体可包括霍尔传感器。霍尔元件11与霍尔元件11对向,可以获得被设于载体14的未图示的位置检测用磁石的位置变化并反馈给驱动装置,驱动装置可根据霍尔元件11的反馈,持续调整驱动装置,调节安装镜头的载体14的位置,使镜头的实际位置与输入的位置保持一致,由此实现对驱动装置的闭环控制。
本实施例中,下弹簧12为两个,每个下弹簧12的一端固定连接于底座10,另一端固定连接于载体14,下弹簧12可对载体14起支撑作用,还可允许载体14相对底座10移动。具体地,下弹簧12包括第一内圈、 第一连接变形部和第一外圈,连接变形部可变形,且其连接于第一内圈和第一外圈之间,第一外圈固定连接于底座10,第一内圈固定连接于载体14。更具体地,下弹簧12上设有卡孔122,底座10的凸柱114卡入卡孔122内。
具体地,一个第二端子118依次电性连接于两个下弹簧12中的一个,另一个第二端子118电性连接于林一个下弹簧12,两个下弹簧12中的一个电性连接于线圈16的一端,另一个下弹簧12与线圈16的另一端电性连接,能够通过霍尔元件11与线圈16的电性连接。当线圈16被通电时,线圈16通电可与磁体18产生作用,产生使载体14上下移动的力,实现对焦。更具体地,一个第二端子118的连接臂119与两个下弹簧12中的一个电性连接,另一个第二端子118也通过连接臂119与另一个下弹簧12电性连接。
本实施例中,载体14用于安装镜头(图未示),以带动镜头上下移动,实现对焦。
本实施例中,线圈16绕设于载体14外侧。可以理解,线圈16也可以其他方式设置,并不限于绕设于载体14外侧。
本实施例中,磁体18对应线圈16而设,且位于线圈16外侧。具体地,磁体18可固定于外壳22内。具体在本实施例中,磁体18为两个,两个磁体18设于载体14的两相对侧。
本实施例中,上弹簧20为一整体结构,其一端固定连接于载体14,另一端固定连接于外壳22,以允许载体14相对外壳22移动。具体地,上弹簧20包括第二内圈、第二连接变形部和第二外圈,第二连接变形部可变形,且其连接于第二内圈和第二外圈之间,第二外圈固定连接于外壳22,第二内圈固定连接载体14。
本实施例中,外壳22在未开设缺口部222的另外两侧设有外壁224,外壁224包覆在底座10外,以保证驱动装置的密封性。
本驱动装置中,由于将霍尔元件11露出外壳22外,因此组装驱动装置时可先将驱动装置的其他部件组装完毕,并将驱动装置的各项参数测量达标后再安装霍尔元件11,如果各项参数测量不达标则可不安装霍尔元件11,避免了霍尔元件的浪费,节约了成本。
可以理解,基体102上也可不开设开口部108,将导电体104延伸至基体102的外侧即可,这样霍尔元件11也可通过外壳22的缺口部222安装,并与导电体104电性连接。
可以理解,驱动装置还可为滚珠式马达或记忆金属马达等其他结构形式的驱动装置,在滚珠式马达,可以不包括下弹簧、上弹簧等结构,在记忆金属马达中,均可不包含下弹簧、线圈、上弹簧、磁体等结构。
本发明还提供一种相机模组,包括上述驱动装置。
本发明还提供一种电子设备,包括上述相机模组。
第二实施例
本发明还提供一种驱动装置组装方法,请参照图6,本发明第二实施例的驱动装置组装方法包括以下步骤:
S11,提供底座10、下弹簧12、载体14、线圈16、磁体18、上弹簧20和外壳22,并将其组装在一起,形成预装驱动装置。具体地,将下弹簧12弹性设于底座10与载体14之间,将载体14可相对底座10移动地设于底座10上,将上弹簧20弹性设于载体14与外壳22之间,将线圈16设于载体14上,将磁体18设于外壳22内,使磁体18与线圈16对应设置,最后将外壳22罩设于底座10上,使下弹簧12、载体14、线圈16、磁体18和上弹簧20均位于外壳22内。其中,底座10包括基体102和导电体104,基体102包括侧壁106,侧壁106上设有开口部108,外壳22对应开口部108的位置开设有缺口部222。
该驱动装置组装方法制造的驱动装置结构与第一实施例的驱动装置的结构相同,在此不再赘述。
S13,测试预装驱动装置的各项参数,并判断各项参数是否达标。
S15,上述各项参数达标时,提供霍尔元件11,将霍尔元件11从外壳22的缺口部222处安装于底座10上,使霍尔元件11与导电体104电性连接,且从缺口部222处露出于外壳22外。具体地,霍尔元件11设于侧壁106的外侧,且在开口部108处。
本驱动装置组装方法中,由于先将驱动装置的其他部件组装完毕,并将驱动装置的各项参数测量达标后再安装霍尔元件11,如果各项参数测量不达标则可不安装霍尔元件11,避免了霍尔元件的浪费,节约了成 本。
可以理解,本驱动装置组装方法还可为适应于组装滚珠式马达或记忆金属马达等其他结构形式的驱动装置,在滚珠式马达中,可以不包括上弹簧、下弹簧等结构,在记忆金属马达中,均可不包含下弹簧、线圈、上弹簧、磁体等结构。
在附图中,为了清晰起见,会夸大层和区域的尺寸和相对尺寸。应当理解的是,当元件例如层、区域或基板被称作“形成在”、“设置在”或“位于”另一元件上时,该元件可以直接设置在所述另一元件上,或者也可以存在中间元件。相反,当元件被称作“直接形成在”或“直接设置在”另一元件上时,不存在中间元件。
在本文中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语的具体含义。
在本文中,术语“上”、“下”、“前”、“后”、“左”、“右”、“顶”、“底”、“内”、“外”、“竖直”、“水平”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了表达技术方案的清楚及描述方便,因此不能理解为对本发明的限制。
在本文中,用于描述元件的序列形容词“第一”、“第二”等仅仅是为了区别属性类似的元件,并不意味着这样描述的元件必须依照给定的顺序,或者时间、空间、等级或其它的限制。
在本文中,除非另有说明,“多个”、“若干”的含义是两个或两个以上。
在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,除了包含所列的那些要素,而且还可包含没有明确列出的其他要素。
以上所述实施例的各技术特征可以进行任意的组合,为使描述简洁,未对上述实施例中的各个技术特征所有可能的组合都进行描述,然而,只要这些技术特征的组合不存在矛盾,都应当认为是本说明书记载的范 围。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以所述权利要求的保护范围为准。
Claims (11)
- 一种驱动装置,其特征在于,包括底座(10)、霍尔元件(11)和外壳(22),所述外壳(22)罩设于所述底座(10)上,所述底座(10)包括基体(102)和导电体(104),所述霍尔元件(11)与所述导电体(104)电性连接,所述外壳(22)开设有缺口部(222),所述霍尔元件(11)从所述缺口部(222)处露出于所述外壳(22)外。
- 如权利要求1所述的驱动装置,其特征在于,所述基体(102)包括侧壁(106),所述侧壁(106)上设有与所述缺口部(222)对应的开口部(108),所述霍尔元件(11)设于所述侧壁(106)的外侧,且在所述开口部(108)处与所述导电体(104)电性连接。
- 如权利要求2所述的驱动装置,其特征在于,所述侧壁(106)为内外两层结构,其包括内层(111)和外层(112),所述内层(111)的边缘超出所述外层(112)的边缘,所述外壳(22)覆盖所述内层(111)的边缘处。
- 如权利要求3所述的驱动装置,其特征在于,所述底座(10)包括两个相对的所述侧壁(106)。
- 如权利要求2所述的驱动装置,其特征在于,所述驱动装置还包括下弹簧(12)、载体(14)、线圈(16)、磁体(18)和上弹簧(20),所述下弹簧(12)弹性设于所述底座(10)与所述载体(14)之间,所述载体(14)可相对所述底座(10)移动地设于所述底座(10)上,所述上弹簧(20)弹性设于所述载体(14)与所述外壳(22)之间,所述线圈(16)设于所述载体(14)上,所述磁体(18)设于所述外壳(22)内,且所述磁体(18)与所述线圈(16)对应设置,所述外壳(22)罩设于所述底座(10)上,所述下弹簧(12)、所述载体(14)、所述线圈(16)、所述磁体(18)和所述上弹簧(20)均位于所述外壳 (22)内。
- 如权利要求5所述的驱动装置,其特征在于,所述导电体(104)包括第一端子(116)和第二端子(118),所述第一端子(116)使外部电路电性连接于所述霍尔元件(11),所述第二端子(118)使所述霍尔元件(11)电性连接于所述下弹簧(12)。
- 如权利要求6所述的驱动装置,其特征在于,所述霍尔元件(11)安装于所述开口部(108)内,所述第一端子(116)至少部分裸露于所述开口部(108)处。
- 如权利要求6所述的驱动装置,其特征在于,所述第二端子(118)为两个,所述下弹簧(12)为两个,一个所述第二端子(118)依次电性连接于两个所述下弹簧(12)中的一个,另一个所述第二端子(118)电性连接于另一个所述下弹簧(12),两个所述下弹簧(12)中的一个电性连接于所述线圈(16)的一端,另一个所述下弹簧(12)与所述线圈(16)的另一端电性连接。
- 一种相机模组,其特征在于,包括权利要求1-8任意一项所述的驱动装置。
- 一种电子设备,其特征在于,包括权利要求9所述的相机模组。
- 一种驱动装置组装方法,其特征在于,包括步骤:提供底座(10)和外壳(22),并将其组装在一起,所述底座(10)包括基体(102)和导电体(104),所述外壳(22)开设有缺口部(222);测试驱动装置的各项参数,并判断各项参数是否达标;所述各项参数达标时,提供霍尔元件(11),将所述霍尔元件(11)从所述外壳(22)的所述缺口部(222)处安装于所述底座(10)上, 使所述霍尔元件(11)与所述导电体(104)电性连接,且从所述缺口部(222)处露出于所述外壳(22)外。
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CN114173039A (zh) * | 2021-12-01 | 2022-03-11 | 新思考电机有限公司 | 一种驱动装置、摄像头模组及电子设备 |
CN114173039B (zh) * | 2021-12-01 | 2024-03-29 | 新思考电机有限公司 | 一种驱动装置、摄像头模组及电子设备 |
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KR102483453B1 (ko) | 2022-12-29 |
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