Patents by Inventor Ming Lv

Ming Lv has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9689504
    Abstract: An electronic expansion valve and a connector assembly thereof are provided. The connector assembly includes a connector seat hermetically connected to a housing of the electronic expansion valve, and contact pins configured to connect an external control component. The housing has a valve cavity in which an electrical motor is arranged, the connector seat has a sealing cavity in communication with the valve cavity, an insulation sleeve is provided inside the sealing cavity and provided with mounting positions corresponding to terminals of the electrical motor, and the mounting positions are electrically insulated from each other and spaced from each other, the insulation sleeve is further provided with connecting holes, and each contact pin has one end passing through the respective connecting hole to be connected to the respective terminal, and another end extending out of the sealing cavity to form a connecting end to connect the external control component.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: June 27, 2017
    Assignee: Zhejiang Sanhua Climate and Appliance Controls Group Co., Ltd
    Inventors: Ming Lv, Xianrang Wei
  • Patent number: 9506677
    Abstract: An electronic expansion valve comprising a screw rod and a motor provided with an output shaft. The output shaft is transmissively connected to the screw rod via a gear system. The gear system is supported on a gear base. The screw rod passes through the gear base. The electronic expansion valve also comprises a valve base provided with valve cavity and a motor housing arranged on the exterior of the motor. The gear base is further arranged within the valve cavity. The upper end part of the valve base is further connected to the lower end part of the motor housing. The structural design of the electronic expansion valve reduces the number of sealed parts for same, thus effectively lowering the probability of leakage and simplifying the assembly structure thereof.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: November 29, 2016
    Assignee: Zhejiang Sanhua Co., Ltd.
    Inventors: Ming Lv, Ze Yuan
  • Patent number: 9435457
    Abstract: A flow regulating valve includes a valve seat and a shell connected to the valve seat, a motor is provided in the shell, and the motor is connected to a screw rod. The screw rod is connected with a nut in a thread cooperation manner, the nut is connected with a valve rod, and the valve rod is movable in an axial direction to regulate an opening degree of a valve port on the valve seat. The whole of the nut or a lower portion of the nut is in clearance fit with the mounting groove in the valve rod in a radial direction. An internal wall of the mounting groove is provided with an annular position limiting groove, in which a position limiting component is provided. The design of the flow regulating valve is able to eliminate the coaxiality error between the screw rod and the screw nut.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: September 6, 2016
    Assignee: Zhejiang Sanhua Co., Ltd.
    Inventors: Ming Lv, Xianrang Wei, Qingyong Wang
  • Publication number: 20160195195
    Abstract: A direct-action-type electrically-operated valve comprises a valve base provided with a valve cavity, a motor disposed on the upper end the valve base, and a screw rod. The screw rod is fitted and connected to a nut by means of threads. The nut is connected to a spool. Axial positions of a rotor of the motor and the valve base are relatively fixed. The upper end of the screw rod is fixedly connected to the rotor. Driven by the nut, the spool moves along the axial direction of the valve cavity to open or close a valve opening disposed on the valve base. The spool is a tubular structure provided with a balancing channel, and a seal piece for dividing the valve cavity into two independent cavities is disposed on the periphery of the spool.
    Type: Application
    Filed: January 20, 2015
    Publication date: July 7, 2016
    Applicant: Zhejiang Sanhua Co., Ltd.
    Inventors: Ming LV, Xianrang WEI
  • Patent number: 9383027
    Abstract: Disclosed in the present invention is an electronic expansion valve, which comprises a valve seat assembly (7) and a valve housing assembly (5) connected to the valve seat assembly (7). A valve stem assembly (6) and a valve port (121) are disposed in the chamber of the valve seat assembly (7), and an electrical motor (51) is situated in the chamber of the valve housing assembly (5). The electrical motor (51) drives the valve stem assembly (6) to move along an axial direction through a gear system (52) so as to adjust the flow rate of the fluid flowing through the valve port (121). The valve seat assembly (7) has a split structure, which comprises a valve seat (1) and a cover (9) connected to the valve seat (1) and to the valve housing assembly (5). A mounting surface (13) is formed on the outer side of the valve seat (1) and a sight glass (8) is connected thereon. The structure of the expansion valve enables the sight glass (8) to be easily attached to the valve seat assembly (7).
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: July 5, 2016
    Assignee: Zhejiang Sanhua Co., Ltd.
    Inventors: Ming Lv, Yuzhong Chen
  • Publication number: 20160161014
    Abstract: An electronic expansion valve according to the present application includes a housing component and a valve seat assembly, the valve seat assembly includes a first connecting pipe and a second connecting pipe which are in a same straight line; a main valve cavity is formed by the valve seat assembly, and an included angle formed between the main valve cavity and the first connecting pipe is an acute angle; wherein the valve seat assembly is of an integral structure and is fixed to the housing component by welding, and a preset distance exists between the first connecting pipe and an extension line of a welding position of the valve seat assembly and the housing component in a radial direction.
    Type: Application
    Filed: September 11, 2013
    Publication date: June 9, 2016
    Inventors: Ming Lv, Xianrang Wei
  • Patent number: 9285038
    Abstract: A flow control valve comprises a valve seat (1) having a valve port (121) in its valve chamber and a valve rod (2) opening or closing the valve port (121). A sleeve protrusion part (122) projects upward from the valve port (121) in an axial direction thereof. The valve rod (2) is tubular and is cylindrical at the lower end. An open slot (3) matching with a flow curve is provided in the circumferential side wall of one of the sleeve protrusion part (122) and the lower end of the valve rod (2). One of the sleeve protrusion part (122) and the lower end of valve rod (2) is inserted into or extracted from the other to disconnect or connect the open slot (3) with the valve port (121). The structural design of the flow control valve can balance the refrigerant pressure on the valve rod (2) in the axial direction while ensuring that the required flow curve can be obtained.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: March 15, 2016
    Assignee: Zhejiang Sanhua Co., Ltd.
    Inventors: Guohua Xu, Ming Lv, Qingyong Wang
  • Publication number: 20160003369
    Abstract: An electronic expansion valve and a connector assembly thereof are provided. The connector assembly includes a connector seat hermetically connected to a housing of the electronic expansion valve, and contact pins configured to connect an external control component. The housing has a valve cavity in which an electrical motor is arranged, the connector seat has a sealing cavity in communication with the valve cavity, an insulation sleeve is provided inside the sealing cavity and provided with mounting positions corresponding to terminals of the electrical motor, and the mounting positions are electrically insulated from each other and spaced from each other, the insulation sleeve is further provided with connecting holes, and each contact pin has one end passing through the respective connecting hole to be connected to the respective terminal, and another end extending out of the sealing cavity to form a connecting end to connect the external control component.
    Type: Application
    Filed: February 21, 2014
    Publication date: January 7, 2016
    Applicant: Zhejiang Sanhua Co., Ltd.
    Inventors: Ming Lv, Xianrang Wei
  • Patent number: 9215246
    Abstract: The invention discloses a website scanning apparatus for performing a security vulnerability scanning on a target website, which apparatus comprises: a web page obtaining component obtaining current content and/or features of a web page corresponding to a link to be processed; a link processing component including a change judgment device for judging whether the web page corresponding to the link to be processed has been changed based on stored web page content and/or features corresponding to the link to be processed as well as the current web page content and/or features of the link to be processed; and a vulnerability detecting component for performing a security vulnerability detection on a web page corresponding to a link to be processed for which the web page has been changed. The invention also discloses a website scanning method corresponding thereto.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: December 15, 2015
    Assignee: NSFOCUS INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Da Zhou, Xiaoming Wang, Ming Lv, Hui Jiang, Guangxu Liu, Xiaohai Lu, Na Li, Xing Ye
  • Publication number: 20150316168
    Abstract: An electronic expansion valve is provided, a valve rod of which is provided with an axial through-hole in communication with a valve port, and a lateral wall of the axial through-hole of the valve seat is sealed with respect to the valve rod. An end surface of the valve rod includes a sealing surface in sealing contact with an end surface at the valve port, the sealing surface includes a first sealing surface to bear an action force of refrigerant at one connecting port and a second sealing surface to bear an action force of refrigerant at another connecting port, and the effective pressure-bearing area of the first sealing surface is equal to that of the second sealing surface. Further provided is an electronic expansion valve in line contact seal with the valve seat.
    Type: Application
    Filed: May 29, 2013
    Publication date: November 5, 2015
    Applicant: Zhejiang Sanhua Co., Ltd.
    Inventor: Ming LV
  • Publication number: 20140175315
    Abstract: A flow-adjusting valve including a valve base and a valve rod. The valve base has arranged within a valve cavity thereof a valve opening. The valve rod opens or shuts the valve opening. The valve rod is tube-shaped, and the lower part thereof is a cylinder. The valve base has arranged at circumferential positions around the valve opening a sealing stepped surface. A lower end face of the valve rod is sealedly in contact with or disengaged from the sealing stepped surface. Furthermore, the valve opening has protruding upwards along the axial direction thereof a sleeve protrusion part. The sealing stepped surface is arranged within the sleeve protrusion part. The structure of flow-adjusting valve on the one hand balances a refrigerant pressure exerted along the axial direction of the valve rod while on the other hand improves the service life and sealing performance of the valve rod.
    Type: Application
    Filed: June 26, 2012
    Publication date: June 26, 2014
    Applicant: Zhejiang Sanhua Co., Ltd
    Inventor: Ming Lv
  • Publication number: 20140103235
    Abstract: A flow control valve comprises a valve seat (1) having a valve port (121) in its valve chamber and a valve rod (2) opening or closing the valve port (121). A sleeve protrusion part (122) projects upward from the valve port (121) in an axial direction thereof. The valve rod (2) is tubular and is cylindrical at the lower end. An open slot (3) matching with a flow curve is provided in the circumferential side wall of one of the sleeve protrusion part (122) and the lower end of the valve rod (2). One of the sleeve protrusion part (122) and the lower end of valve rod (2) is inserted into or extracted from the other to disconnect or connect the open slot (3) with the valve port (121). The structural design of the flow control valve can balance the refrigerant pressure on the valve rod (2) in the axial direction while ensuring that the required flow curve can be obtained.
    Type: Application
    Filed: June 26, 2012
    Publication date: April 17, 2014
    Applicant: Zhejiang Sanhua Co., Ltd.
    Inventors: Guohua Xu, Ming Lv, Qingyong Wang
  • Publication number: 20140103238
    Abstract: Disclosed in the present invention is an electronic expansion valve, which comprises a valve seat assembly (7) and a valve housing assembly (5) connected to the valve seat assembly (7). A valve stem assembly (6) and a valve port (121) are disposed in the chamber of the valve seat assembly (7), and an electrical motor (51) is situated in the chamber of the valve housing assembly (5). The electrical motor (51) drives the valve stem assembly (6) to move along an axial direction through a gear system (52) so as to adjust the flow rate of the fluid flowing through the valve port (121). The valve seat assembly (7) has a split structure, which comprises a valve seat (1) and a cover (9) connected to the valve seat (1) and to the valve housing assembly (5). A mounting surface (13) is formed on the outer side of the valve seat (1) and a sight glass (8) is connected thereon. The structure of the expansion valve enables the sight glass (8) to be easily attached to the valve seat assembly (7).
    Type: Application
    Filed: June 26, 2012
    Publication date: April 17, 2014
    Applicant: Zhejiang Sanhua Co., Ltd.
    Inventors: Ming Lv, Yuzhong Chen
  • Publication number: 20140097368
    Abstract: Disclosed in the present invention is a flow regulating valve comprises a valve seat (1) and a casing (2). A motor (21) provided inside the casing (2) is connected to a screw rod (3) through the output shaft of the motor. The screw rod is connected to a screw nut (4) connecting with a valve rod (5) and the inner part of the valve rod (5) is provided with a mounting groove (51). The screw nut (4) is in clearance fit with the mounting groove (51) along the radical direction, and the inner wall of the mounting groove (51) is provided with an annular limiting groove (52). A limiting element (53) provided in the annular limiting groove (52) limits the position along the axial direction of the screw nut (4) and is in clearance fit with the outside of the screw nut.
    Type: Application
    Filed: June 26, 2012
    Publication date: April 10, 2014
    Applicant: Zhejiang Sanhua Co., Ltd.
    Inventors: Ming Lv, Xianrang Wei, Qingyong Wang
  • Publication number: 20140091246
    Abstract: An electronic expansion valve comprising a screw rod and a motor provided with an output shaft. The output shaft is transmissively connected to the screw rod via a gear system. The gear system is supported on a gear base. The screw rod passes through the gear base. The electronic expansion valve also comprises a valve base provided with valve cavity and a motor housing arranged on the exterior of the motor. The gear base is further arranged within the valve cavity. The upper end part of the valve base is further connected to the lower end part of the motor housing. The structural design of the electronic expansion valve reduces the number of sealed parts for same, thus effectively lowering the probability of leakage and simplifying the assembly structure thereof.
    Type: Application
    Filed: June 26, 2012
    Publication date: April 3, 2014
    Applicant: Zhejiang Sanhua Co., Ltd.
    Inventors: Ming Lv, Ze Yuan
  • Publication number: 20130276126
    Abstract: The invention discloses a website scanning apparatus for performing a security vulnerability scanning on a target website, which apparatus comprises: a web page obtaining component obtaining current content and/or features of a web page corresponding to a link to be processed; a link processing component including a change judgment device for judging whether the web page corresponding to the link to be processed has been changed based on stored web page content and/or features corresponding to the link to be processed as well as the current web page content and/or features of the link to be processed; and a vulnerability detecting component for performing a security vulnerability detection on a web page corresponding to a link to be processed for which the web page has been changed. The invention also discloses a website scanning method corresponding thereto.
    Type: Application
    Filed: October 21, 2011
    Publication date: October 17, 2013
    Applicant: NSFOCUS INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Da Zhou, Xiaoming Wang, Ming Lv, Hui Jiang, Guangxu Liu, Xiaohai Lu, Na Li, Xing Ye
  • Patent number: 8556229
    Abstract: Embodiments of the invention provide an electronic expansion valve, including a magnetic rotor and a screw rod, and further including an output shaft. The magnetic rotor is surroundingly provided on the output shaft, and the output shaft is slidably connected to the screw rod in an axial direction and drivably connected to the screw rod in a circumferential direction. Since the output shaft is slidably connected to the screw rod in an axial direction and drivably connected to the screw rod in a circumferential direction, the magnetic rotor does not subject to an axial force transmitted by the screw rod and rotates flexibly.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: October 15, 2013
    Assignee: Zhejiang Sanhua Co., Ltd.
    Inventors: Ming Lv, Caiyi Zhan
  • Publication number: 20130227640
    Abstract: Described is a website scanning apparatus comprising a policy analysis device for determining whether a link in a target website belongs to a known web application used by the target website. If the link belongs to the identified web application, then a vulnerability scanning is not performed on the link; a crawler device for obtaining the link content that the link points to; a web application identification device for determining whether the link belongs to a known web application; a full scan device for performing a full vulnerability scanning on a link determined as not belonging to the known web application; and a known web application vulnerability detection device for performing vulnerability detection for the identified web application according to known vulnerabilities to determine whether the known vulnerabilities exist in the website. A website scanning method employed by the website scanning apparatus is also described.
    Type: Application
    Filed: September 8, 2011
    Publication date: August 29, 2013
    Applicant: NSFOCUS INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Da Zhou, Xiaoming Wang, Ming Lv, Hui Jiang, Guangxu Liu, Xiaohai Lu, Na Li, Liang Lu, Jingjing Zeng
  • Publication number: 20110012038
    Abstract: Embodiments of the invention provide an electronic expansion valve, including a magnetic rotor and a screw rod, and further including an output shaft. The magnetic rotor is surroundingly provided on the output shaft, and the output shaft is slidably connected to the screw rod in an axial direction and drivably connected to the screw rod in a circumferential direction. Since the output shaft is slidably connected to the screw rod in an axial direction and drivably connected to the screw rod in a circumferential direction, the magnetic rotor does not subject to an axial force transmitted by the screw rod and rotates flexibly.
    Type: Application
    Filed: July 6, 2010
    Publication date: January 20, 2011
    Applicant: Zhejiang Sanhua Co., Ltd.
    Inventors: Ming Lv, Caiyi Zhan