Abstract: Embodiments of the present application provide a case for a battery, a battery, a power consumption device, and a method and device for producing a battery. The case includes: a thermal management component configured to adjust temperature of a battery cell accommodated in the case; a first wall provided with a through hole, the through hole being configured to communicate a gas inside and outside the case; and a heat conducting component attached to the thermal management component and the first wall, the heat conducting component being configured to conduct heat of the thermal management component to the first wall, so that the first wall condenses a gas flowing from the outside of the case to the inside of the case through the through hole. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

Abstract: Embodiments of the present application relate to the technical field of batteries, and provide a water cooling assembly, a battery pack, and a device in order to solve the technical problem of low cooling efficiency of a cooling assembly of a battery pack. The water cooling assembly is configured to cool a cell, and includes: a body portion having a cooling channel for receiving a coolant; a first connecting portion connected to the body portion and having a communication cavity for introducing or draining the coolant; and a second connecting portion arranged between the body portion and the first connecting portion and having an inner cavity for communicating the cooling channel with the communication cavity. An end face of the inner cavity close to the cooling channel has a cross-sectional area greater than that of an end face of the communication cavity close to the inner cavity.

Abstract: The present invention provides a speaker box including a housing with a sound hole and a speaker therein. The speaker includes a frame, a vibration system, a magnetic circuit system, and a covering shell. The vibration system includes a diaphragm dividing a receiving room of the housing into a front cavity communicating with the sound hole and a rear cavity, a voice coil assembly. The magnetic circuit system includes a yoke. The covering shell divides the rear cavity into a first rear cavity inside the speaker and a second rear cavity outside the speaker. The covering shell includes a bottom wall and a side wall. A recessing portion formed on the side wall, and the recessing portion communicates the first rear cavity with the second rear cavity.

Abstract: A box body includes a carrying plate configured to carry a battery and a one-way gravity valve disposed at the carrying plate. The one-way gravity valve is configured to be closed in response to a gravity of liquid in the box body being less than a threshold, and to be open in response to the gravity of the liquid in the box body reaching the threshold.

Abstract: The present application relates to a compensation method for a display and a display, wherein the method includes: acquiring a display image of the display; determining to-be-compensated regions corresponding to the display image, wherein the to-be-compensated regions include at least one first to-be-compensated region and at least one second to-be-compensated region; the display image is compensated based on the to-be-compensated regions, and a compensation mode of the at least one to-be-compensated region is different from a compensation mode of the at least one second to-be-compensated region.

Abstract: Embodiments of the present application provide a battery, a power consumption device, and a method and device for producing a battery. The battery includes: a battery cell, the battery cell including a pressure relief mechanism configured to be actuated when an internal pressure or temperature of the battery cell reaches a threshold, to relieve the internal pressure; a fire-fighting pipeline configured to accommodate a fire-fighting medium and discharge the fire-fighting medium toward the battery cell when the pressure relief mechanism is actuated; and an accommodating part configured to accommodate the fire-fighting medium discharged from the fire-fighting pipeline to lower a temperature of the battery cell. According to technical solutions of the embodiments of the present application, the safety of the battery could be enhanced.

Abstract: The present invention discloses a display panel grayscale compensation method, a grayscale compensation device, and a grayscale compensation system. The grayscale compensation method, by acquiring at least one set of image data corresponding to bonding point grayscale values of the display panel, and by dividing the display panel into a main display region and sub-display regions through the image data, can determine grayscale compensation values corresponding to pixels in the sub-display region according to the average gamma value of each sub-display region, which can increase precision of a single grayscale compensation of the pixels in the display panel.

Abstract: A brightness correcting method of a display panel and a brightness correcting device are disclosed. The method divides a displayed image of the display panel into a first area and a plurality of second areas disposed surrounding the first area. A brightness correction factor of each of the second areas is obtained according to a brightness of the first area and a brightness of each of the second areas. An optical compensation value is adjusted according to the brightness correction factor. The method corrects a brightness of the display panel to allow uniformity of overall brightness of the display panel to meet requirements.

Abstract: The present invention provides a speaker box including a housing with a sound hole and a speaker therein. The speaker includes a frame, a vibration system, a magnetic circuit system, and a covering shell. The vibration system includes a diaphragm dividing a receiving room of the housing into a front cavity communicating with the sound hole and a rear cavity, a voice coil assembly. The magnetic circuit system includes a yoke. The covering shell divides the rear cavity into a first rear cavity inside the speaker and a second rear cavity outside the speaker. The covering shell includes a bottom wall and a side wall. A recessing portion formed on the side wall, and the recessing portion communicates the first rear cavity with the second rear cavity.

Abstract: This application provides a battery, an electric apparatus, and a method and a device for preparing battery, relating to the field of battery technologies. The battery includes a battery cell having an electrode terminal; a fire prevention pipeline, configured to accommodate a fire prevention medium; and a fastener, configured to fasten the fire prevention pipeline. The fastener is connected to the electrode terminal.

Abstract: A battery includes a battery cell, a box configured to accommodate the battery cell, a pipe configured to condense a gas inside the box to form a condensate, and a liquid collecting member provided between the battery cell and the pipe. The liquid collecting member is provided with an accommodating portion facing the pipe, and the accommodating portion is configured to collect the condensate.

Abstract: A charging management method includes, in a charging process, determining, by an electronic device, charging behavior information; determining, by the electronic device, a charging control policy based on the charging behavior information; and performing, by the electronic device, charging according to the charging control policy to avoid the electronic device from being in a float-charging state for a long time.

Abstract: The application discloses a battery pack, vehicle and control method for alleviating spreading of thermal runaway of a battery pack. The battery pack includes: a plurality of secondary batteries, a housing of each of which includes a weakened portion, so that a heat flow resulting from thermal runaway of the secondary battery is able to break through the weakened portion to be discharged; a spray pipeline which is arranged corresponding to and at a spacing from weakened portions of the secondary batteries, at least a portion of the spray pipeline corresponding to the weakened portions being a breakthrough region which is able to form an opening under an action of the heat flow, a spray medium in the spray pipeline being sprayed to an abnormal secondary battery in thermal runaway via the opening; where a weight A of the sprayed spray medium is determined according to an equation (0.8A)0.85×D/B?2.6.

Abstract: Embodiments of the present application relate to the technical field of batteries, and provide a water cooling assembly, a battery pack, and a device in order to solve the technical problem of low cooling efficiency of a cooling assembly of a battery pack. The water cooling assembly is configured to cool a cell, and includes: a body portion having a cooling channel for receiving a coolant; a first connecting portion connected to the body portion and having a communication cavity for introducing or draining the coolant; and a second connecting portion arranged between the body portion and the first connecting portion and having an inner cavity for communicating the cooling channel with the communication cavity. An end face of the inner cavity close to the cooling channel has a cross-sectional area greater than that of an end face of the communication cavity close to the inner cavity.

Abstract: A box body includes a carrying plate configured to carry a battery and a one-way gravity valve disposed at the carrying plate. The one-way gravity valve is configured to be closed in response to a gravity of liquid in the box body being less than a threshold, and to be open in response to the gravity of the liquid in the box body reaching the threshold.

Abstract: A battery includes a battery cell, a fire prevention chamber, a collection chamber, and an isolation member. The battery cell includes a pressure relief mechanism configured to actuate release of internal pressure of the battery cell in response to the internal pressure or internal temperature of the battery cell reaching a threshold. The fire prevention chamber is configured to accommodate a fire prevention medium and constructed to release the fire prevention medium during actuation of the pressure relief mechanism. The collection chamber is located at a side of the fire prevention chamber farther away from the battery cell and configured to collect emissions from the battery cell during actuation of the pressure relief mechanism. The isolation member is configured to isolate the fire prevention chamber from the collection chamber and constructed to allow passage of the emissions during actuation of the pressure relief mechanism.

Abstract: A battery includes a battery cell provided with a pressure relief mechanism configured to be actuated in response to internal pressure or temperature in the battery cell reaching a threshold to release the internal pressure, a collection pipe configured to accommodate a firefighting medium, and a firefighting pipe configured to connect to the collection pipe to allow the firefighting medium to be fed to the firefighting pipe. The firefighting pipe is configured to discharge the firefighting medium toward the battery cell in response to the pressure relief mechanism being actuated. Two ends of the firefighting pipe are a first end and a second end respectively. The first end is configured to connect to the collection pipe to allow the firefighting medium to enter the firefighting pipe through the first end, and the second end is closed.

Abstract: This application relates to a battery, an electric apparatus, and a method and an apparatus for manufacturing a battery. The battery includes a plurality of battery cells and an insulation part. The plurality of battery cells are electrically connected by a busbar; and the battery cell includes a pressure relief mechanism, and the pressure relief mechanism is configured to be actuated when internal pressure or temperature of the battery cell reaches a threshold, to release the internal pressure. The insulation part is configured to cover the busbar, to prevent emissions from the battery cell from causing short circuit of at least one battery cell when the pressure relief mechanism is actuated.

Abstract: The present application is provided with a fluid storage apparatus of a battery pack, including: a box, where the box has an inner cavity; a partition member, where the partition member is located in the inner cavity of the box, and the partition member divides the box into a fluid storage portion and a gas storage portion. The fluid storage portion is used to store spraying liquid and the fluid storage portion has a fluid outlet; the gas storage portion is used to store gas and the gas storage portion has a fluid inlet. And the partition member is configured to move toward the fluid outlet under the action of compressed gas in the gas storage portion.

Abstract: The application discloses a battery pack, vehicle and control method for alleviating spreading of thermal runaway of a battery pack. The battery pack includes: a plurality of secondary batteries, a housing of each of which includes a weakened portion, so that a heat flow resulting from thermal runaway of the secondary battery is able to break through the weakened portion to be discharged; a spray pipeline which is arranged corresponding to and at a spacing from weakened portions of the secondary batteries, at least a portion of the spray pipeline corresponding to the weakened portions being a breakthrough region which is able to form an opening under an action of the heat flow, a spray medium in the spray pipeline being sprayed to an abnormal secondary battery in thermal runaway via the opening; where a weight A of the sprayed spray medium is determined according to an equation (0.8 A)0.85×D/B?2.6.