baber/WOPTO huggingface dataset:
Patent WO-2021017987-A1 (WO)
Title: Device identification method and related apparatus
Inventor: ZHANG BO
IPC: H04W48/16
Filed: 2020-07-22
Abstract: Disclosed are a device identification method and a related apparatus, which are used for reducing the cost of identifying whether a device that accesses a network is an AP device. The method of the embodiments of the present application comprises: when the type of a device that accesses a network needs to be identified, acquiring a MAC address of the access device, and a MAC address of a WiFi hotspot at the periphery of the network access device; then, comparing the MAC address of the access device with the MAC address of the WiFi hotspot; and if the MAC address of the access device and the MAC address of the WiFi hotspot belong to the same address segment, determining that the access device is an AP device.
Patent WO-2021023144-A1 (WO)
Inventor: QIAN XIAOCHUN
IPC: C08F2/48
Filed: 2020-08-03
Abstract: La présente invention concerne un nouveau composé d'ester de fluorénoxime, son procédé de préparation, un photoamorceur contenant le composé d'ester de fluorénoxime, et une composition de résine photosensible. Le composé d'ester de fluorénoxime présente une structure chimique telle que décrite dans A, B, C, D ou E ci-dessous (formule A, B, C, D ou E). Lorsqu'il est utilisé en tant que photoamorceur, le composé d'ester de fluorénoxime peut empêcher un produit de décomposition d'adhérer à un masque en raison d'une exposition ; en outre, l'invention présente un bon effet de motif et d'excellentes adhérence, résistance aux alcalis et transparence.
Patent WO-2022027450-A1 (WO)
Title: Method and apparatus for frequency hopping for control channels for devices with reduced capabilities
Inventor: ZHANG YUANTAO
IPC: H04W72/04
Filed: 2020-08-06
Abstract: Embodiments of the present application are directed to a method and apparatus for frequency hopping for control channels for devices with reduced capabilities. The method may include: receiving configurations of a plurality of bandwidth parts (BWPs); receiving a configuration of control channel offset for a control channel; determining a corresponding control channel resource in a corresponding BWP for each set of a plurality of sets of repetitions by using at least the configuration of the control channel offset and the configurations of the BWPs.
Patent WO-2021179528-A1 (WO)
Inventor: SU YULE
IPC: H01R13/6581
Filed: 2020-08-07
Abstract: Disclosed is a radio frequency connector having high transmission performance, comprising a male end and a female end in plug-in fit with each other; the male end comprises first radio frequency signal ends and first grounding ends; the female end comprises second radio frequency signal ends in fit connection with the first radio frequency signal ends and second grounding ends in fit connection with the first grounding ends; the male end further comprises first shielding housings, the first shielding housings each comprising a first raised portion for isolating two signal ends; the female end further comprises second shielding housings, the second shielding housings each comprising a second raised portion for isolating two signal ends; the first shielding housings are in fit connection with the second shielding housings; and the first raised portions fit the second raised portions. In the present invention, an electromagnetic shielding housing is formed outside, and isolation chambers for signal shielding are provided inside, so that transmission of signals of the radio frequency connector is not interfered by an external signal or an internal signal, thereby ensuring transmission stability of signals in the radio frequency connector.
Patent WO-2022032488-A1 (WO)
Inventor: WAN GUANGXING
IPC: H01L21/8234
Filed: 2020-08-11
Abstract: 本申请的实施例提供一种场效应晶体管及其制造方法，涉及半导体技术领域，能够降低栅极与源极、漏极间的寄生电容。制作方法，包括：在半导体衬底上形成支撑结构，支撑结构包括交替设置的第一半导体材料层和第二半导体材料层，支撑结构的两侧设置有隔离层；沿着隔离层与支撑结构的交界形成覆盖支撑结构的假栅结构，假栅结构在栅长方向的长度小于第一半导体材料层在所述栅长方向的长度，栅长方向用于指示场效应晶体管中载流子的输运方向；沿栅长方向，在假栅结构的两侧沉积第一绝缘层；沿所述栅长方向，去除第二半导体材料层中除牺牲层以外的区域，形成绝缘凹槽，绝缘凹槽的内部镂空、填充有空气。
Patent WO-2021032094-A1 (WO)
Inventor: ZHANG HONGJIE
IPC: A61M5/50
Filed: 2020-08-18
Abstract: 一种安全式多头式注射针，包括：针座(1)，其设有凹腔(101)和针管固定孔(105)；针管(2)，固定于针座(1)上；分流座(3)，设置于针座(1)的凹腔(101)内，其设有通孔(301)，通孔(301)中穿入针管(2)的上端；锥座(4)，其设有通道(401)，其中部设有双线外螺纹(402)、警示凸起(403)和自毁凸起(404)，其底部设置于针座(1)的凹腔(101)内，其底部与分流座(3)的顶部相装配且围成腔体；负压座(5)，套装于针座(1)外，其内设有横隔板(502)，横隔板(502)对针座(1)下行限位，横隔板(502)上设有针管通过孔(505)；以及调节座(6)，套装于锥座(4)的中部和负压座(5)的顶部，其设有中心孔(601)且中心孔(601)内设有双线内螺纹(602)，双线内螺纹(602)与锥座(4)中部的双线外螺纹(402)相配合。安全式多头式注射针能调节针管(2)伸出的长度，具有自毁功能和自毁前的警示功能。整体体积小，部件间配合紧凑、配合度高，可一次性组装完成。
Patent WO-2021032141-A1 (WO)
Title: Rotary grinding device and medical appliance comprising rotary grinding device
Inventor: YUE BIN
IPC: A61B17/3207
Filed: 2020-08-20
Abstract: A rotary grinding device, comprising a driving shaft (2) and a rotary grinding assembly (1) connected to the driving shaft (2), wherein the rotary grinding assembly (1) comprises a base (11) and a rotary grinding block (12), the rotary grinding block (12) can be assembled on the base (11) in a relatively movable mode, and when the rotary grinding assembly (1) rotates, the rotary grinding block (12) moves towards a direction away from the base (11). By means of a rotary grinding head consisting of the rotary grinding assembly (1), the external size of the rotary grinding head in a stationary state is reduced, so that the rotary grinding head can well reach a lesion through a blood vessel; and by changing the movement radius of the rotary grinding head and the size of the opening lesion by means of centrifugal force generated under high-speed rotation, the purpose of automatically adjusting the grinding hole size can be achieved, so that the frequency of constant replacement of the rotary grinding head during use is reduced.
Patent WO-2021189759-A1 (WO)
Title: 发动机进气增氧燃烧装置及配置有该装置的交通工具
Inventor: CUI DELIANG
IPC: B60H3/00
Filed: 2020-08-20
Abstract: 一种发动机进气增氧燃烧装置，包括：至少一个氧气发生器（4）、控制器（10）、分别与氧气发生器（4）和发动机的进气管道连通的供氧管道；其中，控制器（10）与氧气发生器（4）电连接。该装置在不改变发动机的原有结构，不改变原始零部件的情况下，实现了发动机的增氧燃烧，通过改变发动机的理论空燃比，调整发动机的喷油量或者调节氧气输入量，以实现节油或增大输出功率的目的。
Patent WO-2022041017-A1 (WO)
Inventor: SUN HUANLI
IPC: A61K47/69
Filed: 2020-08-26
Abstract: 载小分子药聚合物囊泡及其制备方法与应用，载小分子药聚合物囊泡由两亲性嵌段聚合物与小分子药物组装制备得到；或者由两亲性嵌段聚合物与官能化两亲性嵌段聚合物组装交联并负载小分子药物，再与靶向单抗反应得到。该囊泡体系拥有许多独特的优点，包括尺寸小、制备简单可控、生物相容性优异、体内循环稳定性高、肿瘤细胞特异选择性强、细胞内药物释放速度快、肿瘤生长抑制效果显著等。因此，该囊泡体系有望成为简单且集多功能于一身的纳米平台，用于高效及特异性靶向递送硫酸长春新碱至多发性骨髓瘤细胞。
Patent WO-2022051902-A1 (WO)
Title: Low-voltage battery charging system and method
Inventor: SONG TIANZHU
IPC: H02J7/00
Filed: 2020-09-08
Abstract: The present application relates to the technical field of electric vehicles, and in particular to a low-voltage battery charging system and method. The charging system comprises: a low-voltage battery, which can be used for supplying power to a low-voltage electric device of a vehicle; a power battery pack; a direct-current converter, which can be used for receiving, when a positive relay and a negative relay of the power battery pack are switched on, a voltage provided by the power battery pack, and converting the voltage into a charging voltage of the low-voltage battery, so as to charge the low-voltage battery; and a DCDC controller, which is electrically connected to the low-voltage battery, and can be used for monitoring the voltage of the low-voltage battery when the vehicle is in a dormant state, wherein the DCDC controller is in communication connection with a battery management system of the vehicle, so as to wake up the battery management system when the voltage of the low-voltage battery is less than a first threshold value, such that the battery management system switches on the positive relay and negative relay of the power battery pack.
Patent WO-2021057466-A1 (WO)
Inventor: GAO YUNJIE
IPC: H02B1/30
Filed: 2020-09-08
Abstract: A power supply cabinet, relating to the technical field of batteries. The power supply cabinet comprises: a base; a plurality of battery modules and a main control module, the plurality of the battery modules and the main control module being stacked on the base, and the plurality of battery modules being electrically connected to the main control module and thus being controlled by the main control module, wherein the main control module comprises: a main body having an inner cavity; a panel mounted on the main body and used for opening and closing the inner cavity; and a micro switch disposed on the main body, wherein when the panel is in the state of opening the inner cavity, the micro switch is touched or released, so that the power supply cabinet is powered off.
Patent WO-2022056656-A1 (WO)
Title: Weights layout transformation assisted nested loops optimization for ai inference
Inventor: ZHAO HAIJUN
IPC: G06F13/16
Filed: 2020-09-15
Abstract: Various embodiments include methods and devices for weight layout transformation of a weight tensor. Embodiments may include, accessing a first memory to retrieve weights of the weight tensor in a transformed order that is different than an order for retrieving the weights for a calculation at a network layer of a trained machine learning model, and loading the weights to a second memory in the transformed order. Embodiments may further include retrieving the weights from the second memory in the transformed order, and reordering the weights to the order for implementing the calculation at the network layer of the trained machine learning model.
Patent WO-2021129005-A1 (WO)
Title: 一种区块链状态变更交易追溯的方法及装置
Inventor: XU YUZHUANG
IPC: G06Q30/04
Filed: 2020-09-23
Abstract: 一种区块链状态变更交易追溯的方法及装置，该方法包括：区块链节点获取待追溯交易的交易标识(201)；所述区块链节点根据所述交易标识，确定出交易标识对应区块链状态(202)；所述区块链节点根据所述历史交易hash集合，确定出交易标识对应的每一笔历史的交易数据(203)。通过在区块链状态中增加区块链状态发生变化时的交易hash值，可以实现快速的查找到历史的交易数据，从而可以解决现有区块链数据通过智能合约只能查询到最新状态，无法直接追溯区块中历史交易记录的问题，提高历史交易数据的追溯效率。
Patent WO-2022061857-A1 (WO)
Title: Method for operating a terminal when accessing a web page defined by a code in a markup language
Inventor: GUO ZHIHONG
IPC: G06F9/44
Filed: 2020-09-28
Abstract: The present invention relates to a method for operating a terminal (1) when accessing a web page defined by a code in a markup language, the method comprising the following steps, performed by a processing unit (11) of the terminal (1) : - detecting (a) that a user of the terminal (1) focuses on a text input box of said web page; - determining (b) that said code comprises an attribute defining an expected input language for the text input box; and - applying (c) said expected input language for inputting text into the text input box.
Patent WO-2021073443-A1 (WO)
Inventor: ZHANG QING
IPC: G06K9/32
Filed: 2020-10-09
Abstract: Disclosed are a method and apparatus for detecting a region of interest, and an electronic device and a readable storage medium, wherein same relate to the technical field of information processing. The method for detecting a region of interest comprises: acquiring a target video frame image, and dividing the target video frame image into a plurality of image blocks of a preset size (S201); for each image block, acquiring a chrominance component of each pixel point of the image block, and determining the proportion of qualified points of the image block according to the chrominance component of each pixel point, wherein the proportion of qualified points is the proportion of pixel points which satisfy a preset chrominance condition in all the pixel points of the image block (S202); determining the region type of each image block on the basis of the proportion of qualified points of each image block (203); and detecting a region of interest of the target video frame image according to the region type of each image block (S204).
Patent WO-2022027816-A1 (WO)
Title: Detection method for image acquisition apparatus, and related apparatus
Inventor: YE FEI
IPC: H04N17/00
Filed: 2020-10-09
Abstract: A detection method for an image acquisition apparatus, and a related apparatus. The detection method comprises: acquiring multiple pieces of anomalous image information, wherein each of the multiple pieces of anomalous image information comprises a first preset anomaly (S101); performing anomaly determination on the first preset anomaly in the anomalous image information, and establishing an anomaly model of the first preset anomaly according to a determination result of the anomaly determination (S102); and according to the anomaly model, performing anomaly analysis on a first image acquired by an image acquisition apparatus (S103). By means of the method, the first preset anomaly in the first image acquired by the image acquisition apparatus can be automatically detected and identified.
Patent WO-2021078025-A1 (WO)
Inventor: JI SHAOSHAN
IPC: H01M50/10
Filed: 2020-10-10
Abstract: 本发明公开了一种电动车，其涉及电动车领域，包括车体和安装在车体上的电池盒，电池盒包括：具有容纳腔室的盒体；盒体包括底座和盖体；盒体具有第一侧面和第二侧面，第一侧面上具有第一通风格栅，第二侧面上具有第二通风格栅，盒体内设置有第一挡水件和第二挡水件，第一挡水件与第一通风格栅的两侧和下侧相连接，第一挡水件的上端与第一侧面之间形成有与盒体内部、第一通风格栅相连通的第一气流通道，第二挡水件与第二通风格栅两侧和下侧相连接，第二挡水件的上端与第二侧面之间形成有与盒体内部、第二通风格栅相连通的第二气流通道。在保证电池包方便更换以及实现电池盒内部散热的前提下，本申请能够有效避免雨水进入电池盒而对电池包造成影响。
Patent WO-2021164308-A1 (WO)
Title: Hydraulic type shock absorption and isolation supporting base and use method therefor
Inventor: ZHOU YONGJUN
IPC: E01D19/04
Filed: 2020-10-29
Abstract: Disclosed in the present invention are a hydraulic type shock absorption and isolation supporting base and a use method therefor. An upper plate groove is provided above a lower plate groove; grooves are formed on the lower portion of the upper plate groove and the upper portion of the lower plate groove; both the upper portion of the upper plate groove and the lower portion of the lower plate groove are provided with pre-embedded reinforcing bars; a steel mat body is in the shape of a cuboid and is provided on the upper surface of a shock absorption layer; the shock absorption layer is provided in the groove of the upper portion of the lower plate groove; the upper portion of the steel mat body extends into the groove of the upper plate groove and is in contact with the bottom surface of the groove; baffle plates are respectively provided on the side surfaces of the steel mat body in the groove of the upper plate groove; a hydraulic cylinder used for absorbing shock is provided between each baffle plate and the inner wall of the groove of the upper plate groove; each baffle plate and the upper plate groove are connected by means of a position adjustment mechanism; and the position adjustment mechanism can make the baffle plate be in contact with the side surface of the steel mat body, or make a preset distance be reserved between the baffle plate and the side surface of the steel mat body. The present invention can control the hysteresis characteristic of the supporting base, prolong the natural vibration period of a structure, and improve the anti-vibration performance of the structure, and can be used as a fixed, unidirectional or bidirectional supporting base.
Patent WO-2021253705-A1 (WO)
Title: High-precision zero-sequence current sensor based on current synthesis and precision magnetic potential conversion
Inventor: DING YONGSHENG
IPC: G01R19/00
Filed: 2020-10-30
Abstract: A high-precision zero-sequence current sensor based on current synthesis, comprising LPCT coils, a precision current transformer, and a high-precision sampling resistor R 0 ; the LPCT coils comprise an LPCT coil A, an LPCT coil B, and an LPCT coil C; the LPCT coil A, the LPCT coil B, and the LPCT coil C are each connected to the precision current transformer; the precision current transformer is connected in parallel to the high-precision sampling resistor R 0 ; a resistor R A , a resistor R B , and a resistor R C  are respectively connected in parallel to the LPCT coil A, the LPCT coil B, and the LPCT coil C. The high-precision zero-sequence current sensor connects the LPCT coils end to end in parallel to obtain secondary zero-sequence current, and the measurement precision under the condition that primary zero-sequence current is relatively small is met using a method of directly acquiring small signals by means of the high-precision sampling resistor, thereby ensuring the load capacity of the current sensor and the miniaturization of the sensor.
Patent WO-2022094852-A1 (WO)
Inventor: TANG ZIQING
IPC: H04W48/08
Filed: 2020-11-05
Abstract: Procédé et appareil de connexion de dispositif, et dispositif matériel et support de stockage lisible par ordinateur. Le procédé consiste : lorsqu'un dispositif tiers est connecté en communication à un dispositif matériel dans un second mode de connexion, à acquérir des informations valides associées à un premier mode de connexion au moyen du second mode de connexion. Lorsque le dispositif tiers doit être connecté en communication au dispositif matériel dans le premier mode de connexion pour la première fois, les informations valides associées au premier mode de connexion ont été pré-acquises et pré-stockées. Par conséquent, le dispositif tiers peut établir directement une connexion avec le dispositif matériel sur la base des informations valides mémorisées de manière interne pendant la liaison de communication des deux dans le premier mode de connexion, ce qui permet d'améliorer l'efficacité de connexion dans une certaine mesure.
Patent WO-2021164328-A1 (WO)
Inventor: WANG LIANG
IPC: G06K9/34
Filed: 2020-11-06
Abstract: An image generation method and apparatus, a device, and a storage medium, relating to the technical field of computers. The method comprises: obtaining contour information and target region information; determining at least one target contour according to the contour information and the target region information, all or part of each target contour being located in a target region; reducing the first coordinates of multiple contour points in each target contour to obtain the second position information of each target contour, the second position information of the target contour comprising the second coordinates of the multiple contour points in the target contour, and the magnitude of reduction of the coordinates of each contour point being equal; and according to the second position information of each target contour and the target region information, generating a target image corresponding to the target region, the target image comprising contours located in the target region. The method reduces the size of the target image, and further ensures the accuracy of the generated target image.
Patent WO-2021103997-A1 (WO)
Title: 一种区块链凭证撤销、验证方法、签发节点、验证节点
Inventor: HU CHAOXIN
IPC: H04L9/32
Filed: 2020-11-09
Abstract: 一种区块链凭证撤销、验证方法、签发节点、验证节点，涉及金融科技(Fintech)领域。其中，区块链凭证撤销方法包括：签发节点根据待撤销的第一凭证的标识确定第一凭证的标识在MPT中对应的第一分支路径（201）；签发节点在MPT中新建第一分支路径的第一叶子节点，并将第一凭证的撤销信息存储至第一叶子节点中（202）；其中，MPT用于验证节点在确定待验证凭证的标识对应的分支路径在MPT中之后，确定待验证凭证被撤销。该方式用以在验证节点验证凭证是否被撤销时，提升验证节点的验证效率，以及减少验证节点的计算量。
Patent WO-2021098716-A1 (WO)
Inventor: HE QIAOJUN
IPC: A61P35/00
Filed: 2020-11-18
Abstract: Disclosed in the present invention are crystal forms of a fused ring compound, and a composition thereof, a preparation method therefor and an application thereof. The crystal forms comprise a crystal form I, a crystal form II, a crystal form III, a crystal form IV and a crystal form V, which have, when an X-ray diffraction method is used, characteristic diffraction peaks at about 11.3 degrees, 17.2 degrees and 21.1 degrees, at about 25.1 degrees, 21.2 degrees and 14.1 degrees, at about 6.6 degrees, 13.4 degrees and 8.0 degrees, at about 11.8 degrees, 13.3 degrees and 16.7 degrees, and at about 6.5 degrees, 13.3 degrees and 20.0 degrees. The crystal form I or IV is obtained by dissolving a fused ring compound by adding a proper solvent, and performing stirring, filtering and drying; the crystal form I or the crystal form IV is applied in preparation of anti-cancer drugs for inhibiting phosphatidylinositol 3-kinase. The products are used for targeted therapy for tumors, and are used for anti-inflammation or treatment of autoimmune diseases.
Patent WO-2021098774-A1 (WO)
Title: Procédés de traitement du cancer utilisant des anticorps anti-ox40 en combinaison avec des anticorps anti-pd1 ou anti-pdl1
Inventor: JIANG BEIBEI
IPC: C07K16/28
Filed: 2020-11-19
Abstract: L'invention concerne des méthodes de traitement du cancer ou d'augmentation, l'amélioration ou la stimulation d'une réponse immunitaire avec des anticorps anti-OX40 agonistes non compétitifs et des fragments de liaison à l'antigène de ceux-ci qui se lient à l'OX40 humain (ACT35, CD134, ou TNFRSF4), en combinaison avec un anticorps anti-PD1 ou avec un anticorps anti-PDL1.
Patent WO-2022109948-A1 (WO)
Inventor: WEI WUXIANG
IPC: E05D13/00
Filed: 2020-11-26
Abstract: 一种矮轨道组件（10）及推拉门（100），矮轨道组件（10）包括设有第一滑槽（20）的轨道（2）和位于轨道（2）内的滑车（3），滑车（3）包括支架（31）、滚轮组件（32）和吊夹（33），支架（31）通过滚轮组件（32）在第一滑槽（20）内移动，支架（31）设有第一容纳槽（312）和垂直并贯穿第一容纳槽（312）的容纳位（313），吊夹（33）设有第二容纳槽（330），吊夹（33）位于容纳位（313）内，容纳位（313）的第一端处设有挡壁（314），挡壁（314）上设有第二滑槽（3141），第二滑槽（3141）沿轨道（2）的高度方向延伸并贯穿挡壁（314），吊夹（33）上还设有贯穿自身的螺纹孔（3311），滑车（3）还包括锁紧片（34）和螺栓（35），挡壁（314）位于锁紧片（34）和吊夹（33）之间，锁紧片（34）上设有贯穿自身的连接孔（341），螺栓（35）穿过连接孔（341）和第二滑槽（3141）后与螺纹孔（3311）螺纹连接，轨道（2）的第一侧壁（22）上置有与第一滑槽（20）连通的第一操作孔（222）；推拉门（100）设置有该矮轨道组件（10）。推拉门（100）的活动门板（1）的安装、调节和更换简单、方便，便于维修，并可提高推拉门（100）的美观性。
Patent WO-2022109982-A1 (WO)
Title: Puce à réseau de bragg
Inventor: CHEN YIFAN
IPC: G02F1/01
Filed: 2020-11-27
Abstract: L'invention concerne une puce à réseau de Bragg comprenant un substrat de silicium monocristallin (10, 20, 30, 40, 50), une couche de dioxyde de silicium (13, 23, 33, 43, 53) disposée sur le substrat de silicium monocristallin (10, 20, 30, 40, 50), un réseau de Bragg (11, 21, 31, 41, 51) disposé sur la couche de dioxyde de silicium (13, 23, 33, 43, 53), et un matériau de coefficient thermo-optique négatif (12, 22, 32, 42, 52) disposé sur le réseau de Bragg (11, 21, 31, 41, 51). Le matériau de coefficient thermo-optique négatif (12, 22, 32, 42, 52) est disposé sur le réseau de Bragg (11, 21, 31, 41, 51) pour éliminer la sensibilité à la température du réseau de Bragg (11, 21, 31, 41, 51) sur la base d'un cristal de niobate de lithium, de telle sorte que la quantité de dérive de la longueur d'onde centrale de spectre de réflexion de la puce de réseau de Bragg sous la variation de température d'environnement 1K est sensiblement nulle, de sorte que la réponse spectrale de dispositifs optoélectroniques tels qu'un filtre optique et un laser composé du réseau de Bragg au niobate de lithium (11, 21, 31, 41, 51) n'est pas sensible à une variation de température.
Patent WO-2021110025-A1 (WO)
Inventor: ZHANG SHUAI
IPC: B60L15/20
Filed: 2020-12-02
Abstract: A control method and device for a new energy vehicle. The control method comprises: detecting whether a single-pedal control mode is activated; and when detected that the single-pedal control mode is activated, controlling a new energy vehicle to enter a creep mode according to at least one among a gear of the new energy vehicle, the action of the brake pedal of the new energy vehicle, and the speed of the new energy vehicle. The control method and device can control the switching of a creep mode according to a driving intention.
Patent WO-2022104950-A1 (WO)
Inventor: LIN ZONGBIAO
IPC: H01R13/02
Filed: 2020-12-10
Abstract: An electrical connector and an electronic product. The electrical connector comprises: metal terminals (150); an insulating body (110), which is used for fixing the metal terminals (150); a metal shielding cover (120), which covers an outer side of at least part of the insulating body (110); a metal locking pin (130), which is connected to the insulating body (110), the metal locking pin (130) being provided with a grounding end (131), wherein the insulating body (110), the metal shielding cover (120) and the metal locking pin (130) enclose to form an accommodating space (160); and a brazing solder (140), which is at least partially provided within the accommodation space (160), the brazing solder (140) being used to melt during welding and fixedly connect the metal shielding cover (120) and the metal locking pin (130) after cooling so as to enable the metal shielding cover (120) and the metal locking pin (130) form an electrical connection.