Abstract: Disclosed is a refrigerator having a centrifugal fan with a volute, which includes a cabinet, an evaporator, a centrifugal fan, and an air supply duct. A cooling chamber located at a lower part and at least one storage compartment located above the cooling chamber are defined in the cabinet; the evaporator is disposed in the cooling chamber and is configured to cool airflow entering the cooling chamber to form cooled airflow; the centrifugal fan includes a volute and an impeller disposed in the volute; and the air supply duct is detachably connected with the volute, communicates with a volute air outlet, and is configured to deliver the cooled airflow into the at least one storage compartment.

Abstract: Disclosed is a refrigerator (100) preventing an air supply duct (141) from falling down, which includes a top cover (103) that divides a lowermost storage liner (130) into a storage space (132) located above and a cooling space located below, an evaporator (101) arranged in the cooling space, and the air supply duct (141) arranged at an inner side of a rear wall of the storage liner (130). The top cover (103) includes a top cover body (103a) and a supporting portion (103b) protruding upward from a rear end of the top cover body (103a); a bearing portion (141b) protruding forward is formed on a front wall surface of the air supply duct (141); and the top cover (103) and the air supply duct (141) are arranged such that the supporting portion (103b) supports the bearing portion (141b) to prevent the air supply duct (141) from falling down.

Abstract: Disclosed are a lifting desk control system with an imperceptible intelligent adjustment function and a control method for imperceptible intelligent adjustment of the lifting desk. The system includes an imperceptible control system module configured to control lifting of the lifting desk in an imperceptible mode, a switching module electrically connected with the imperceptible control system module, a motor module configured to drive the lifting desk to do a lifting action, a motor drive module electrically connected between the imperceptible control system module and the motor module, a desktop, a transmission module configured to be mechanically connected with the motor module and the desktop, and a power module configured to supply power. The power module is respectively electrically connected with the switching module, the imperceptible control system module and the motor drive module.

Abstract: A method for controlling safe operation of an electric table includes: starting the default setting value or self-set setting value of a sensor unit stored in a memory after power-on; making sure that an electric control module activates the sensor unit when the electric table is raised or lowered, and the sensor unit detects the vibration amplitude of the electric table and records the number of vibrations when the vibration amplitude exceeds the setting value; when the recorded number of vibrations is greater than the default setting value or self-set setting value, the electric control module controls a power mechanism on the electric table to make a rebound action in the opposite direction when the electric table is raised or lowered. Acceleration and gyroscope sensors are vertically installed on a small board, so that the sensitivity of the gyroscope to vibration detection is increased.

Abstract: Disclosed is a refrigerator having a centrifugal fan with a volute, which includes a cabinet, an evaporator, a centrifugal fan, and an air supply duct. A cooling chamber located at a lower part and at least one storage compartment located above the cooling chamber are defined in the cabinet; the evaporator is disposed in the cooling chamber and is configured to cool airflow entering the cooling chamber to form cooled airflow; the centrifugal fan includes a volute and an impeller disposed in the volute; and the air supply duct is detachably connected with the volute, communicates with a volute air outlet, and is configured to deliver the cooled airflow into the at least one storage compartment.

Abstract: Disclosed is a refrigerator (100) preventing an air supply duct (141) from falling down, which includes a top cover (103) that divides a lowermost storage liner (130) into a storage space (132) located above and a cooling space located below, an evaporator (101) arranged in the cooling space, and the air supply duct (141) arranged at an inner side of a rear wall of the storage liner (130), communicating with the cooling space, and configured to deliver at least part of cooled airflow into the storage space (132). The cooling space raises a height of the storage space (132) located above the cooling space, thus reducing a bend-down degree of a user during an operation of taking and placing articles in the storage space (132), and improving use experience of the user.

Abstract: The invention provides a method for controlling safe operation of an electric table, comprising: starting the default setting value or self-set setting value of the sensor unit stored in the memory after power-on; making sure that the electric control module activates the sensor unit when the electric table is raised or lowered, and the sensor unit detects the vibration amplitude of the electric table and records the number of vibrations when the vibration amplitude exceeds the setting value; when the recorded number of vibrations is greater than the default setting value or self-set setting value, the electric control module controls the power mechanism on the electric table to make a rebound action in the opposite direction when the electric table is raised or lowered. The acceleration and gyroscope sensors are vertically installed on the small board, so that the sensitivity of the gyroscope to vibration detection is increased.

Abstract: A cleaning device connects to a mobile device through an interface. The cleaning device includes a trigger mechanism which includes at least one plate body, two elastic members connect to the plate body, and a baffle mechanism resting on the plate body. The baffle mechanism comprises at least one baffle, a torsion spring, and a processing unit. The baffle defines a first elastic sheet and the plate body defines a second elastic sheet. When a pressure is applied on the mobile device, the plate body is driven to rotate the baffle to make the first elastic sheet on the baffle contact the second elastic sheet on the plate body. The processing unit produces a trigger signal to execute a function of function modules when the first elastic sheet contacts the second elastic sheet.

Abstract: A chip card fixing assembly is received inside a charging interface of an electronic device for fixing a chip card inside the charging interface. The chip card fixing assembly includes a resisting assembly including at least one pushing member and a securing member including at least one fixing portion. The at least one fixing portion and the at least one pushing member cooperatively define a securing space therebetween for fixing the chip card.

Abstract: A chip card fixing assembly is received inside a charging interface of an electronic device for fixing a chip card inside the charging interface. The chip card fixing assembly includes a resisting assembly including at least one pushing member and a securing member including at least one fixing portion. The at least one fixing portion and the at least one pushing member cooperatively define a securing space therebetween for fixing the chip card.

Abstract: An electronic device which is protected against screen breakage when dropped includes a display panel defining a through hole, a gravity sensor, a processor, and a bumper deployment mechanism. The bumper deployment mechanism includes a first elastic part and a connected rotating mechanism. The rotating mechanism includes a motor. The processor can compare a detected acceleration value with a preset acceleration value. When the detected acceleration value represents free-fall motion, which is greater than the preset acceleration value, the processor controls the motor to drive the first elastic part to pass through the through hole of the display panel and protrude from the display panel as a shock absorber.

Abstract: An adjustable charging base for charging an electronic device includes an upper cover defining a first opening therein and configured for holding an electronic device, and a lower cover having a receiving space defined therein. An interface connecting assembly includes at least two charging interfaces and is rotationally received in the receiving space. The interface connecting assembly is rotatable to provide one of the at least two charging interfaces through the first opening of the upper cover.

Abstract: A cleaning device connects to a mobile device through an interface. The cleaning device includes a trigger mechanism which includes at least one plate body, two elastic members connect to the plate body, and a baffle mechanism resting on the plate body. The baffle mechanism comprises at least one baffle, a torsion spring, and a processing unit. The baffle defines a first elastic sheet and the plate body defines a second elastic sheet. When a pressure is applied on the mobile device, the plate body is driven to rotate the baffle to make the first elastic sheet on the baffle contact the second elastic sheet on the plate body. The processing unit produces a trigger signal to execute a function of function modules when the first elastic sheet contacts the second elastic sheet.