CN204539664U - A kind of control and drive system shell structure - Google Patents
A kind of control and drive system shell structure Download PDFInfo
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- CN204539664U CN204539664U CN201520120231.6U CN201520120231U CN204539664U CN 204539664 U CN204539664 U CN 204539664U CN 201520120231 U CN201520120231 U CN 201520120231U CN 204539664 U CN204539664 U CN 204539664U
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Abstract
本实用新型公开了一种控制驱动器壳体结构，属于机电伺服系统领域，壳体结构包括壳体座、位于所述壳体座上方的壳体盖、以及设于所述壳体座内部的第一区域和第二区域，所述第二区域位于所述第一区域的一侧，所述第一区域内沿着高度方向分层设置有用于安装IGBT驱动板和IGBT的IGBT安装区域、用于支撑电源板的电源板背板、以及用于固定控制板的隔离支撑板，所述第二区域内设置有用于支撑电容板的电容板背板。本实用新型公开的控制驱动器壳体结构，通过合理的设计内部结构，使得板卡易于安装，且消除了板卡之间的干涉现象，提高了控制驱动器电磁兼容性、密封性以及散热能力。
The utility model discloses a shell structure of a control driver, which belongs to the field of electromechanical servo systems. The shell structure comprises a shell seat, a shell cover located above the shell seat, and a first An area and a second area, the second area is located on one side of the first area, and the first area is layered with an IGBT installation area for installing an IGBT driver board and an IGBT along the height direction, for The power board backplane supporting the power board and the isolated support board used to fix the control board, the capacitor board backplane used to support the capacitor board is arranged in the second area. The housing structure of the control driver disclosed by the utility model makes the board card easy to install through rational design of the internal structure, eliminates the interference phenomenon between the board cards, and improves the electromagnetic compatibility, sealing performance and heat dissipation capacity of the control driver.
Description
技术领域technical field
本实用新型涉及机电伺服系统领域，具体而言，涉及一种控制驱动器壳体结构。The utility model relates to the field of electromechanical servo systems, in particular to a control driver shell structure.
背景技术Background technique
机电伺服系统包括控制驱动器和机电作动器，控制驱动器对作动器的电机进行控制，带动机电作动器进行运动，两个机电作动器成90度安装，通过作动器的伸缩，使得喷管能够全轴摆动，用以实现飞行的俯仰、偏航控制。The electromechanical servo system includes a control driver and an electromechanical actuator. The control driver controls the motor of the actuator and drives the electromechanical actuator to move. The two electromechanical actuators are installed at 90 degrees. Through the expansion and contraction of the actuator, the The nozzle can swing on all axes to realize the pitch and yaw control of the flight.
控制驱动器接收上位机的控制信号、机电作动器的线位移和旋变信号，1553B的测试信号，接收两相直流信号，向电机发送三相交流信号。其主要功能是完成电机的驱动控制，通过安装在伺服驱动器内的电流传感器实现对电机的电流闭环，通过安装在电机轴端的旋转变压器实现速度闭环，通过旋转变压器或者位移传感器实现位置闭环。The control driver receives the control signal of the upper computer, the line displacement and resolver signal of the electromechanical actuator, and the test signal of 1553B, receives the two-phase DC signal, and sends the three-phase AC signal to the motor. Its main function is to complete the drive control of the motor, realize the current closed-loop of the motor through the current sensor installed in the servo driver, realize the closed-loop speed through the resolver installed at the shaft end of the motor, and realize the closed-loop position through the resolver or displacement sensor.
民用上，有足够的安装空间，对控制驱动器体积要求不苛刻，而且是长时工作制，需要元器件寿命长，散热的要求高，因此往往增加风扇，这样使得控制驱动器体积一般很大。For civilian use, there is enough installation space, and the size requirements for the control driver are not strict, and it is a long-time working system, which requires long life of components and high heat dissipation requirements, so fans are often added, which makes the control driver generally large in size.
在军工产品中，控制驱动器的力学环境、化学环境和湿度环境更苛刻，对体积重量的要求也比较苛刻，内部各板卡之间的距离很近，强电与弱电共存，强电对弱电的影响显著，壳体内部的电磁兼容性低，对控制驱动器壳体提出了更高的要求，这就要求控制驱动器壳体有高电磁兼容性、好的密封性、高抗振动冲击能力、低安装内应力和好的散热性。In military products, the mechanical environment, chemical environment and humidity environment of the control driver are more harsh, and the requirements for volume and weight are also more stringent. The impact is significant, the electromagnetic compatibility inside the shell is low, and higher requirements are put forward for the control drive shell, which requires the control drive shell to have high electromagnetic compatibility, good sealing, high resistance to vibration and impact, and low installation Internal stress and good heat dissipation.
实用新型内容Utility model content
为了克服现有技术的缺陷，本实用新型所要解决的技术问题在于提出一种控制驱动器壳体结构，通过合理的设计内部结构，使得板卡易于安装，且消除了板卡之间的干涉现象，提高了控制驱动器电磁兼容性、密封性以及散热能力。In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to propose a control driver housing structure, through a reasonable design of the internal structure, the board is easy to install, and the interference between the boards is eliminated. The electromagnetic compatibility, sealing and heat dissipation capability of the control drive are improved.
为达此目的，本实用新型采用以下技术方案：For this purpose, the utility model adopts the following technical solutions:
本实用新型提供了一种控制驱动器壳体结构，包括壳体座、位于所述壳体座上方的壳体盖、以及设于所述壳体座内部的第一区域和第二区域，所述第二区域位于所述第一区域的一侧，所述第一区域内沿着高度方向分层设置有用于安装IGBT驱动板和IGBT的IGBT安装区域、用于支撑电源板的电源板背板、以及用于固定控制板的隔离支撑板，所述第二区域内设置有用于支撑电容板的电容板背板。The utility model provides a control driver housing structure, which comprises a housing base, a housing cover located above the housing base, and a first area and a second area arranged inside the housing base. The second area is located on one side of the first area, and the first area is layered with an IGBT installation area for installing an IGBT driver board and an IGBT along the height direction, a power board backplane for supporting a power board, As well as an isolation support plate for fixing the control board, a capacitor plate back plate for supporting the capacitor plate is arranged in the second area.
进一步地，所述电源板背板位于所述电源板的下方，所述隔离支撑板位于所述控制板的下方，所述电容板背板位于所述电容板的下方，所述电源板、所述控制板、以及所述电容板处于不同的高度位置。Further, the power board backplane is located under the power board, the isolation support board is located under the control board, the capacitor board backplane is located under the capacitor board, the power board, the The control board and the capacitor board are at different height positions.
进一步地，所述隔离支撑板通过导电氧化处理形成用于减小强电和弱电发生电磁耦合的隔离层，所述隔离层的上方为弱电区域，所述隔离层的下方为强电区域。Further, the isolation support plate is treated with conductive oxidation to form an isolation layer for reducing the electromagnetic coupling between strong and weak currents, the upper part of the isolation layer is a weak current area, and the lower part of the isolation layer is a strong electrical area.
进一步地，所述电容板与所述电容板背板之间设置有第一绝缘柱，所述电源板与所述电源板背板之间设置有第二绝缘柱，所述控制板与所述隔离支撑板之间设置有第三绝缘柱。Further, a first insulating post is provided between the capacitor board and the backboard of the capacitor board, a second insulating post is provided between the power board and the backboard of the power board, and the control board and the A third insulating column is arranged between the isolation support plates.
进一步地，所述壳体座与所述壳体盖、插座的连接处设置有导电橡胶条或导电橡胶垫。Further, a conductive rubber strip or a conductive rubber pad is provided at the connection between the housing seat, the housing cover and the socket.
进一步地，所述IGBT驱动板、所述IGBT均位于所述IGBT安装区域中，所述IGBT位于所述IGBT驱动板的下方，且与所述IGBT驱动板固定连接，所述IGBT固定在所述壳体座的底部，所述IGBT与所述壳体座的内表面之间设置有导热绝缘垫。Further, the IGBT driving board and the IGBT are both located in the IGBT installation area, the IGBT is located below the IGBT driving board and is fixedly connected to the IGBT driving board, and the IGBT is fixed on the At the bottom of the case seat, a heat conducting and insulating pad is provided between the IGBT and the inner surface of the case seat.
进一步地，所述壳体座的底面上设置有用于支撑所述电容背板的第一凸台及用于支撑所述电源板背板的第二凸台。Further, a first boss for supporting the capacitor backplane and a second boss for supporting the power board backplane are provided on the bottom surface of the housing base.
进一步地，所述壳体底部的外表面上开设有若干条散热槽。Further, several cooling grooves are opened on the outer surface of the bottom of the housing.
进一步地，所述控制板与所述隔离支撑板之间、所述电容板与所述电容板背板之间、所述电容板与所述IGBI之间、所述电容板与所述制动管之间均通过螺钉固定连接，不同的螺钉固定连接处采用的垫片厚度不同。Further, between the control board and the isolation support board, between the capacitor board and the back board of the capacitor board, between the capacitor board and the IGBI, between the capacitor board and the brake The tubes are fixedly connected by screws, and the thickness of the gaskets used in different screw-fixed connections is different.
进一步地，所述壳体座配置为由整块铝材中部掏空加工而成的结构，所述壳体座、所述壳体盖通过导电氧化处理形成用于壳内和壳外发生电磁耦合的隔离层。Further, the housing base is configured as a structure formed by hollowing out the middle of a whole piece of aluminum material, and the housing base and the housing cover are formed through conductive oxidation treatment for electromagnetic coupling inside and outside the housing isolation layer.
本实用新型的有益效果为：The beneficial effects of the utility model are:
本实用新型提供了一种控制驱动器壳体结构，其壳体座内部设置了第一区域和第二区域，第一区域内沿着高度方向分层设置了安装区域、电源板背板以及隔离支撑板，第二区域内设置了电容板背板，上述设置方式使得安装IGBT驱动板、电源板、控制板以及电容板分层分区域设置，不同的安装高度可消除加工误差引起的板卡相互干涉现象，提高电磁兼容能力。隔离支撑板的外表面设置了隔离层，隔离层的上方为弱电区域，其下方为强电区域，使得强电与弱点隔离，减少强弱电之间的电磁耦合现象。壳体座和壳体盖上也设置了隔离层，使得控制驱动器的内部和外部之间形成电磁屏障，避免控制驱动器受到外界的电磁干涉，提高控制驱动器的电磁兼容性。The utility model provides a shell structure of a control driver. A first area and a second area are arranged inside the shell seat, and an installation area, a power board back plate and an isolation support are layered in the first area along the height direction. Board, the capacitor board backplane is set in the second area. The above-mentioned setting method makes the installation of IGBT driver board, power board, control board and capacitor board layered and divided into areas. Different installation heights can eliminate the mutual interference of boards caused by processing errors. Phenomenon, improve electromagnetic compatibility. The outer surface of the isolation support plate is provided with an isolation layer, the upper part of the isolation layer is a weak current area, and the lower part is a strong current area, so that the strong current is isolated from the weak point, and the electromagnetic coupling between strong and weak currents is reduced. The housing seat and the housing cover are also provided with an isolation layer, so that an electromagnetic barrier is formed between the inside and outside of the control driver, preventing the control driver from being subjected to external electromagnetic interference, and improving the electromagnetic compatibility of the control driver.
附图说明Description of drawings
构成本申请的一部分的附图用来提供对本实用新型的进一步理解，本实用新型的示意性实施例及其说明用于解释本实用新型，并不构成对本实用新型的不当限定。The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation of the utility model.
图1示出了本实用新型的控制驱动器的壳体结构的剖面示意图；Fig. 1 shows a schematic cross-sectional view of the housing structure of the control driver of the present invention;
图2示出了图1的E-E的剖视示意图。FIG. 2 shows a schematic cross-sectional view along line E-E of FIG. 1 .
图中：In the picture:
11、壳体座；111、散热槽；12、壳体盖；2、IGBT驱动板；3、电源板；31、电源板背板；4、控制板；41、隔离支撑板；5、电容板；51、电容板背板；6、IGBT；7、第一凸台；8、第二凸台；9、制动管。11. Shell seat; 111. Heat sink; 12. Shell cover; 2. IGBT driver board; 3. Power board; 31. Power board backplane; 4. Control board; 41. Isolation support board; 5. Capacitor board ; 51, the capacitor plate back plate; 6, IGBT; 7, the first boss; 8, the second boss; 9, the brake tube.
具体实施方式Detailed ways
下面结合附图并通过具体实施方式来进一步说明本实用新型的技术方案。The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.
如图1和图2所示，本实用新型提供的控制驱动器包括壳体结构及位于壳体结构内部的板卡，板卡包括IGBT驱动板2、电容板5、电源板3以及控制板4，壳体结构包括壳体座11、壳体盖12以及设于壳体座11内部的第一区域和第二区域，第二区域位于第一区域的一侧，第一区域内沿着高度方向分层设置有IGBT安装区域、电源板背板51、以及隔离支撑板41，顺序从下至上，其中，IGBT安装区域用于安装IGBT驱动板2和IGBT6，其为一空间区域，电源板背板31用于支撑电源板3，隔离支撑板41用于支撑控制板4，第二区域内设置有用于支撑电容板5的电容板背板51。由于IGBT安装区域、电源板背板31、隔离支撑板41以及电容板背板51沿不同高度分层分区域设置，使得IGBT驱动板2、IGBT6、电源板3、控制板4以及电容板5等板卡沿不同高度分层分区域设置，具体地，电源板背板31位于电源板3的下方，隔离支撑板41位于控制板4的下方，电容板背板51位于电容板5的下方，电源板3、控制板4、以及电容板5处于不同的高度位置。不同的高度位置可消除加工误差引起的板卡之间相互干涉的现象，提高电磁兼容能力。As shown in Figures 1 and 2, the control driver provided by the utility model includes a housing structure and a board located inside the housing structure. The board includes an IGBT driver board 2, a capacitor board 5, a power board 3 and a control board 4. The housing structure includes a housing base 11, a housing cover 12, and a first area and a second area located inside the housing base 11. The second area is located on one side of the first area, and the first area is divided along the height direction. The layer is provided with an IGBT installation area, a power board backplane 51, and an isolation support plate 41, in order from bottom to top, wherein the IGBT installation area is used to install the IGBT driver board 2 and IGBT6, which is a space area, and the power board backplane 31 It is used to support the power board 3 , the isolation support board 41 is used to support the control board 4 , and the capacitor board back board 51 used to support the capacitor board 5 is arranged in the second area. Since the IGBT installation area, the power board backplane 31, the isolation support board 41, and the capacitor board backplane 51 are arranged in layers and regions along different heights, the IGBT driver board 2, the IGBT6, the power board 3, the control board 4, and the capacitor board 5, etc. The boards are arranged in layers and sub-regions along different heights. Specifically, the power board backplane 31 is located under the power board 3, the isolation support board 41 is located under the control board 4, and the capacitor board backplane 51 is located under the capacitor board 5. The board 3, the control board 4, and the capacitor board 5 are at different height positions. Different height positions can eliminate the phenomenon of mutual interference between boards and cards caused by processing errors, and improve electromagnetic compatibility.
为了进一步减少控制驱动器的强弱电之间的电磁耦合现象，隔离支撑板41上设置有隔离层，隔离层通过对隔离支撑板41导电氧化处理而形成，隔离层的上方为弱电区域，隔离层的下方为强电区域。隔离层具有减小强电和弱电发生电磁耦合的作用，从而实现使用弱电的控制板4与使用强电的IGBT驱动板2、电源板3等板卡的分离，进一步提高控制驱动器内部器件的电磁兼容性。In order to further reduce the electromagnetic coupling phenomenon between the strong and weak currents controlling the driver, an isolation layer is provided on the isolation support plate 41, and the isolation layer is formed by conductive oxidation treatment of the isolation support plate 41. The top of the isolation layer is a weak current area, and the isolation layer Below is the strong electric area. The isolation layer has the function of reducing the electromagnetic coupling between the strong current and the weak current, thereby realizing the separation of the control board 4 using the weak current from the IGBT driver board 2 and the power board 3 using the strong current, and further improving the electromagnetic interference of the internal components of the control driver. compatibility.
为了进一步提高板卡与其他器件之间的绝缘效果，优选地，在板卡与其支撑板之间安装绝缘件，以防止板卡与支撑板或其他器件之间发生电导通，影响其他器件的正常工作。具体地，电容板5与电容板背板51之间设置有第一绝缘柱，电源板3与电源板背板31之间设置有第二绝缘柱，控制板4与隔离支撑板41之间设置有第三绝缘柱，且电容板5、电容板背板51以及第一绝缘柱通过螺钉固定连接，电源板3、电源板背板31以及第二绝缘柱也通过螺钉固定连接，控制板4、隔离支撑板41以及第三绝缘柱还通过螺钉固定连接。进一步优选的，第一绝缘柱、第二绝缘柱以及第三绝缘柱均由塑料材料或橡胶材料制备，这些材料具有良好的弹性，可有效提高上述各个板卡抗振动和冲击的效果。In order to further improve the insulation effect between the board and other devices, preferably, an insulator is installed between the board and its support plate to prevent electrical conduction between the board and the support plate or other devices, affecting the normal operation of other devices Work. Specifically, a first insulating post is provided between the capacitor board 5 and the capacitor board back plate 51, a second insulating post is provided between the power board 3 and the power board back board 31, and a second insulating post is provided between the control board 4 and the isolation support board 41. There is a third insulating column, and the capacitor plate 5, the capacitor plate back plate 51 and the first insulating column are fixedly connected by screws, the power board 3, the power plate back plate 31 and the second insulating column are also fixedly connected by screws, and the control board 4, The isolation support plate 41 and the third insulating column are also fixedly connected by screws. Further preferably, the first insulating post, the second insulating post and the third insulating post are all made of plastic material or rubber material, and these materials have good elasticity, which can effectively improve the anti-vibration and impact effects of the above boards.
进一步地，在壳体座11与壳体盖12、插座连接处设置有导电橡胶条或导电橡胶垫，以实现壳体座11与壳体盖12、插座之间良好的电磁密封和化学水汽密封。具体地，可在壳体座11的开口的边缘处和插座处设有用于安装导电橡胶条或导电橡胶垫的安装槽，以便于导电橡胶条或导电橡胶垫固定在壳体座11和壳体盖12的连接处。为了实现该控制驱动器的良好散热，可在壳体座11的底部设置若干个散热槽111，以增大壳体1底部的散热面积，提高散热速度。还可对壳体座11和壳体盖12的表面进行导电氧化处理，优选为，导电阳极氧化的表面处理，用于减小控制驱动器壳内和壳外发生电磁耦合。壳体座11和壳体盖12通过螺钉固定连接，实际设计中，若合理设置螺钉的间距，不仅会提高控制驱动器的电磁屏蔽效果，而且还会密封的效果，从而使得内部板卡不受外部盐雾的影响。壳体座11的两侧还设置有支耳孔，支耳孔用以安装减震器，减少振动冲击带来的负面影响。壳体座由整块铝材中部掏空加工而成，这种结构强度大，加工方便。Further, a conductive rubber strip or a conductive rubber pad is provided at the connection between the housing base 11 and the housing cover 12 and the socket, so as to realize good electromagnetic sealing and chemical water vapor sealing between the housing base 11 and the housing cover 12 and the socket. . Specifically, an installation groove for installing a conductive rubber strip or a conductive rubber pad may be provided at the edge of the opening of the housing seat 11 and the socket, so that the conductive rubber strip or the conductive rubber pad is fixed on the housing base 11 and the housing. The junction of the cover 12. In order to realize good heat dissipation of the control driver, several heat dissipation grooves 111 can be provided at the bottom of the housing base 11 to increase the heat dissipation area at the bottom of the housing 1 and improve the heat dissipation speed. The surfaces of the housing base 11 and the housing cover 12 can also be treated with conductive oxidation, preferably, the surface treatment of conductive anodic oxidation is used to reduce the electromagnetic coupling inside and outside the housing of the control driver. The housing seat 11 and the housing cover 12 are fixedly connected by screws. In the actual design, if the spacing of the screws is set reasonably, it will not only improve the electromagnetic shielding effect of the control driver, but also have a sealing effect, so that the internal board is not affected by the external The effect of salt spray. Both sides of the shell base 11 are also provided with lug holes, which are used to install shock absorbers to reduce the negative impact caused by vibration. The shell seat is hollowed out in the middle of a whole piece of aluminum material. This structure has high strength and is easy to process.
为了减少各模块板之间的电磁耦合，电容板5和电源板3为分体设计。具体地，电容板5固定在第二区域中的电容板背板51上，电源板3固定在第一区域中的电源板背板31上。这种设置方式，能够减小电容板5和电源板3之间电磁耦合，提高控制驱动器电磁兼容性。In order to reduce the electromagnetic coupling between the module boards, the capacitor board 5 and the power board 3 are designed separately. Specifically, the capacitor board 5 is fixed on the capacitor board backplane 51 in the second area, and the power board 3 is fixed on the power board backplane 31 in the first area. This arrangement can reduce the electromagnetic coupling between the capacitor plate 5 and the power supply plate 3 and improve the electromagnetic compatibility of the control driver.
进一步地，IGBT驱动板2、IGBT6均位于IGBT安装区域中，IGBT6位于IGBT驱动板2的下方，且与IGBT驱动板6固定连接，IGBT2固定在壳体座11的底部。为了进一步地增加IGBT6的散热性，在IGBT6与壳体座11的内表面之间设置导热绝缘垫，以提高控制驱动器的热传导率，增加热容，降低温度。Further, both the IGBT driver board 2 and the IGBT6 are located in the IGBT installation area, the IGBT6 is located below the IGBT driver board 2 and is fixedly connected to the IGBT driver board 6 , and the IGBT2 is fixed on the bottom of the housing seat 11 . In order to further increase the heat dissipation of the IGBT6, a thermally conductive insulating pad is provided between the IGBT6 and the inner surface of the housing seat 11 to improve the thermal conductivity of the control driver, increase the heat capacity, and reduce the temperature.
优选地，为了支撑电容板背板51，在壳体1的底面且位于IGBT6的左侧设置有支撑电容板背板51的第一凸台7。电容板5与IGBT6的直流端和制动管9相关联，电容板5与IGBT6的直流端之间通过铜柱、铜柱垫片电性连接，且与制动管9通过螺钉固定连接。进一步优选地，控制板4与隔离支撑板41之间、电容板5与电容板背板51之间、电容板3与IGBI6之间以及电容板3与制动管9之间均通过螺钉固定连接，不同的螺钉固定连接处采用的垫片厚度不同，根据尺寸链，加工不同厚度的垫片，能够消除螺钉安装过程中由于过约束而产生的板卡内部的弯扭应力。Preferably, in order to support the capacitive plate back plate 51 , a first boss 7 supporting the capacitive plate back plate 51 is provided on the bottom surface of the housing 1 and on the left side of the IGBT 6 . The capacitor plate 5 is associated with the DC end of the IGBT6 and the brake tube 9 , and the capacitor plate 5 is electrically connected to the DC end of the IGBT6 through copper columns and copper column gaskets, and is fixedly connected with the brake tube 9 by screws. Further preferably, between the control board 4 and the isolation support plate 41, between the capacitor board 5 and the capacitor board back plate 51, between the capacitor board 3 and the IGBI6, and between the capacitor board 3 and the brake tube 9 are fixedly connected by screws , Different screw-fixed joints use different thicknesses of gaskets. According to the size chain, processing gaskets with different thicknesses can eliminate the bending and torsional stress inside the board due to over-constraint during screw installation.
电源板3设置于IGBT驱动板2的正上方，IGBT驱动板2与电源板3插接连接。优选地，IGBT驱动板2与电源板3通过直插的方式连接，以减小占用空间。为了支撑电源板背板31，在壳体1的底面设置有支撑电源板背板31的第二凸台8。电源板3为IGBT6的三相电端设置安装孔。The power board 3 is arranged directly above the IGBT driving board 2 , and the IGBT driving board 2 is plugged and connected to the power board 3 . Preferably, the IGBT driver board 2 is connected to the power board 3 through direct plugging, so as to reduce the occupied space. In order to support the power board backplane 31 , a second boss 8 supporting the power board backplane 31 is provided on the bottom surface of the casing 1 . The power board 3 is provided with installation holes for the three-phase electrical terminals of the IGBT6.
本实用新型是通过优选实施例进行描述的，本领域技术人员知悉，在不脱离本实用新型的精神和范围的情况下，可以对这些特征和实施例进行各种改变或等效替换。本实用新型不受此处所公开的具体实施例的限制，其他落入本申请的权利要求内的实施例都属于本实用新型保护的范围。The utility model is described through preferred embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. The utility model is not limited by the specific embodiments disclosed here, and other embodiments falling within the claims of the application all belong to the protection scope of the utility model.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107395092A (en) * | 2017-09-14 | 2017-11-24 | 四川大能科技有限公司 | Motor driver |
| CN113566689A (en) * | 2021-07-30 | 2021-10-29 | 陕西中科启航科技有限公司 | Displacement sensor capable of monitoring transverse displacement and longitudinal displacement simultaneously |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107395092A (en) * | 2017-09-14 | 2017-11-24 | 四川大能科技有限公司 | Motor driver |
| CN113566689A (en) * | 2021-07-30 | 2021-10-29 | 陕西中科启航科技有限公司 | Displacement sensor capable of monitoring transverse displacement and longitudinal displacement simultaneously |
| CN113566689B (en) * | 2021-07-30 | 2023-10-13 | 陕西中科启航科技有限公司 | Displacement sensor capable of monitoring transverse direction and longitudinal direction simultaneously |
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