Abstract: A battery cell includes a shell, an electrode assembly, and an end cover, and an opening is provided at an end of the shell in a first direction, and the electrode assembly is accommodated in the shell. The end cover is configured to cover the opening. The end cover includes an end cover body located in a projection of the opening in the first direction. The end cover is welded to the shell to form a weld pool structure. In a radial direction of the opening, the weld pool structure is exposed on an outer surface of the shell and penetrates deep into the end cover body. In an embodiment of this application, a laser needs to be irradiated from an outer peripheral side of the shell to the vicinity of a boundary position between the shell and a protrusion along the radial direction of the shell.

Abstract: The battery comprises: a casing, comprising a plurality of frames forming side walls of the casing; and a plurality of battery cells, which are mounted in the casing, wherein the plurality of battery cells comprise a first type of battery cells and a second type of battery cells, the battery cells at least abutting against the frames being the second type of battery cells, and the energy density of the second type of battery cells being greater than the energy density of the first type of battery cells. By using the second type of battery cells as the battery cells abutting against the frames, the battery cells have better charging and discharging performance at low temperatures, thereby effectively improving the heat preservation performance and the charging and discharging performance of the battery at low temperatures, and reducing the temperature difference.

Abstract: The battery comprises a case, a heat exchange assembly, and at least one battery cell; the case comprises a plurality of first side beams, and the plurality of first side beams are connected to define a first accommodating cavity; the at least one battery cell is located in the first accommodating cavity; the heat exchange assembly is located in the first accommodating cavity, and comprises at least one heat exchange piece used for exchanging heat with the battery cell; and an accommodating slot is formed in at least one first side beam, and the at least one heat exchange piece is at least partially accommodated in the accommodating slot. In this way, the internal space of the case is saved, the space utilization rate of the battery is improved, and the structural compactness of the battery is improved, thereby improving the volumetric energy density of the battery.

Abstract: A battery cell includes a housing, a cell, and a ventilation assembly. The housing has an accommodating cavity. The housing includes a first wall. The first wall is provided with a first gas discharge channel. The cell is disposed in the accommodating cavity. The ventilation assembly is mounted on the first wall and covers the first gas discharge channel. The ventilation assembly includes a connecting member and a ventilation film. The connecting member is provided with at least one through hole. The ventilation film covers the through hole(s).

Abstract: Provided are a nanofiber composite air purification filter material and its preparation method. The nanofiber composite air purification filter material includes a four-layer composite structure from top to bottom, namely non-woven fabric, nanofiber membrane layer, modified melt-blown non-woven fabric, and spunbond non-woven fabric. The non-woven fabric is PET needle-punched non-woven fabric. The raw materials for preparing the nanofiber membrane layer, based on weight fractions, include the following components: 10-20 parts of polylactic acid, 3-5 parts of a reinforcing agent, 2-4 parts of modified nanoparticles, and 100-150 parts of solvent. The material of the spunbond non-woven fabric is PET or PP. The nanofiber composite air purification filter material provided by the present disclosure has breathability, radiation resistance, and antibacterial properties, and can be widely used in the field of air purification filter materials, with good commercial application value.

Abstract: An inference method includes obtaining inquiry information, executing a current inference sub-task in an inference task corresponding to the inquiry information, to obtain an inference sub-result of the current inference sub-task, evaluating the inference sub-result to obtain an evaluation result of the inference sub-result, when it is determined that the evaluation result satisfies processing criteria, processing the inference sub-result to obtain a processed result of the current inference sub-task, and based on the inquiry information and the processed result of the current inference sub-task, executing a next inference sub-task following the current inference task, so as to determine an inference result corresponding to the inquiry information based on at least an inference sub-result of a final inference sub-task.

Abstract: In a video headset, a video display inside an extended reality (XR) device is controlled by electronic circuits that generate heat while executing software applications for displaying content on the video display. The XR device includes heat dissipation technology to dissipate heat generated by the electronic circuits. The video headset includes a fluid-based cooling system comprising a closed loop conduit through which fluid moves from the XR device in the frontal portion of the harness to a thermal control mechanism in a rear portion of the harness, adjacent to the back of a user's head and then back to the XR device. In this regard, heat dissipation elements may be relocated from the XR device to the thermal control mechanism. to redirect heat to the rear portion, shift some of the noise and vibration to the rear portion and improve the weight distribution of the video headset.

Abstract: A battery and a power consuming device are provided. In some embodiments, the battery includes: a case assembly, including a case and fixed beams fixed in the case; a battery module arranged in the case, wherein the battery module includes a plurality of battery cells arranged in a first direction (X); and a restraining component, configured to cover the battery module and fixed to the fixed beams, wherein the restraining component is provided with a weak area, and the weak area is configured to allow the restraining component to be deformed when being subjected to an expansion force of each battery cell.

Abstract: A battery cell, a battery, and an electric device. The battery cell includes a housing, an electrode terminal, and a first connector. The housing has a first wall portion with a lead-out hole. The electrode terminal includes a body portion and a flange portion. The body portion is at least partially inserted into the lead-out hole, and the flange portion is connected to one end of the body portion along the thickness direction of the first wall. The flange is positioned on one side of the wall and includes a first end surface facing away from the body portion. A groove is formed in the electrode terminal, with a groove side surface connected to the first end surface. The first connector is welded to the electrode terminal at a weld mark, while a portion of the groove side surface within the flange does not contact the weld mark.

Abstract: Provided is a method for measuring a color difference, an electronic device and a storage medium. The method includes: conveying respective fabric segments of the fabric to be detected sequentially to a measurement port of a detection portion, so as to collect color values at a plurality of sampling points; determining a time range in which a target segment of the fabric to be detected passes through the measurement port of the detection portion; the target segment being any one fabric segment of the fabric to be detected; selecting an effective sampling point of the target segment based on the time range and sampling time points of the plurality of sampling points; and determining a corresponding color difference value of a target yarn spindle based on a color value and standard value of the effective sampling point.

Abstract: Embodiments of the present application provide an end cap, a battery cell, a battery and a power consuming device, which relate to the technical field of batteries. The end cap may include a cap body and a groove. The cap body may have a first surface. The groove may be provided in the cap body to form a pressure relief zone in a region of the cap body where the groove is provided. The groove may be recessed from the first surface in a thickness direction of the cap body, and groove side faces of the groove may include corner faces at corners of the groove. Each corner face may be connected to the first surface via a first chamfer face.

Abstract: A battery cell, a battery, and an electrical device. The battery cell comprises a shell and a gas permeable membrane assembly; the shell has a wall portion, the wall portion is provided with a first exhaust hole, and the first exhaust hole makes the interior of the shell and the exterior of the shell communicated; the gas permeable membrane assembly is arranged on the wall portion, the gas permeable membrane assembly comprises a gas permeable membrane, and the gas permeable membrane assembly covers the first exhaust hole.

Abstract: A lighting device control system includes a host side and device sides, the host side includes a power transformer, a power supply encoding circuit, a signal receiving module, and a microcontroller unit. An output terminal of the power transformer is connected to a voltage input terminal of the power supply encoding circuit, a second voltage output terminal of the power supply encoding circuit is connected to a voltage input terminal of the MCU, a signal output terminal of the signal receiving module is connected to a signal input terminal of the MCU, and a signal output terminal of the MCU is connected to a signal input terminal of the power supply encoding circuit; and each of the device sides includes a decoding circuit, a drive circuit, and light emitting diode lamp beads. The present disclosure has the effects of simplifying the wiring of a lighting system.

Abstract: Embodiments of the present application provide a battery cell, a battery, and an electric device. The battery cell includes a housing, an electrode assembly, and a first insulating member. The housing includes a first wall; the electrode assembly is disposed inside the housing; and the first insulating member is disposed inside the housing and located between the electrode assembly and the first wall, the first insulating member being in contact with the electrode assembly. The first insulating member has a first surface facing the electrode assembly, the first surface being provided with a groove. The technical solution provided by the present application can improve the reliability of the battery.

Abstract: The present disclosure generally relates to an additive manufacturing system. The system can comprise a material supply module for melting and pressurizing a printing material; a micro-screw printing head comprising: a micro-screw comprising a threaded stem portion and a conical head portion, wherein the threaded stem portion is threaded throughout its length for volume measurement; a sleeve, and a nozzle, wherein a distal end of the nozzle comprises: a conical inner surface, and an outlet port for dispensing the print material, wherein the conical inner surface of the nozzle is configured to be in contact with the conical head portion of the micro-screw to stop dispensing the printing material at the nozzle when the micro-screw printing head is in a closed position; a driving module comprising: a rotation motor for driving a rotating motion of the micro-screw, and an actuator for driving a vertical motion of the micro-screw.

Abstract: Described herein are devices, systems, methods, and processes for inspecting wireless client traffic in a software-defined wide area network (SD-WAN) deployment. A controller device may generate and send capture policies to various network devices, including, but not limited to, access points (APs), wireless local area network (LAN) controllers (WLCs), and edge devices. The policies may each include a filter field and an action field, which can be dynamically updated based on current network conditions and needs. Upon receiving the capture policy, the APs can filter the wireless traffic and set an Inspect flag in the control and provisioning of wireless access points (CAPWAP) header on the matching wireless packet. The edge devices or WLCs may then inspect the wireless traffic by checking the Inspect flag in the CAPWAP header. The technique may provide a more efficient and scalable solution for inspecting wireless client traffic, with minimal impact on network performance.

Abstract: Provided is a method for processing sample data, an electronic device and a storage medium, relating to the field of artificial intelligence technology, and especially to the fields of image processing and computer vision. The method includes: obtaining a plurality of first working images of a spinning box; for each first working image in the plurality of first working images, determining the first working image as a defect image of the spinning box when a difference between the first working image and a normal image of the spinning box meets a first condition; and obtaining a first sample data set based on all defect images in the plurality of first working images.

Abstract: A sight with a detachable eyepiece includes a sight main body, an objective lens and an eyepiece lens. The sight main body includes an observation portion and a connection portion opposite to the observation portion. A side of the sight main body close to the observation portion is provided with a mounting portion. The objective lens is connected to the connection portion. The eyepiece lens is detachably connected to the mounting portion, and the eyepiece lens is configured for observation.

Abstract: Provided is a state prediction method for a stacker, an electronic device and a storage medium, relating to the field of chemical fiber intelligent technology. The method includes: obtaining historical work data and historical maintenance data of the stacker; obtaining a work task of the stacker within a preset time period; predicting a state of the stacker during execution of the work task based on the historical work data and the historical maintenance data; simulating the execution of the work task by the stacker within the preset time period based on the historical work data, to obtain a simulation execution result of the stacker; and generating a state prediction result of the stacker based on the time when the stacker fails and the stop position of the stacker when failing in combination with the simulation execution result.

Abstract: An end cap includes a first recess recessed from a side facing toward an electrode assembly of a battery cell and away from the electrode assembly, and a second recess recessed from a side facing away from the electrode assembly and toward the electrode assembly. A bottom wall of the second recess includes a first part and a second part surrounding the first part. The first part and a bottom wall of the first recess are opposite to each other in a thickness direction of the end cap. The end cap further includes a pressure relief portion formed between the first part and the bottom wall of the first recess, and configured to be actuated when an internal pressure of the battery cell reaches a threshold. A side of the second part facing away from the electrode assembly forms an avoidance space to avoid the pressure relief portion.