Abstract: A first device performs periodic scanning alternately, where a first scanning periodicity is used for a first-type Bluetooth connection, and a second scanning periodicity is used for a second-type Bluetooth connection; the first device receives a first-type data packet from a second device in a first scan window of any first scanning periodicity, where the first-type data packet is used to establish the first-type Bluetooth connection; the first device obtains, based on the first-type data packet, a second connection parameter for establishing the second-type Bluetooth connection to the second device; and the first device establishes the second-type Bluetooth connection to the second device based on the second connection parameter.

Abstract: The present disclosure provides a sealing ring, which comprises an annular base, an inside sealing portion, and an outside sealing portion. The annular base comprises an inner annular side and an outer annular side. The inside sealing portion protrudes inwardly from the inner annular side. The outside sealing portion protrudes outwardly from the outer annular side. At least one of the inside sealing portion and the outside sealing portion has a contour undulating in an axial direction of the annular base or inclined with respect to a radial direction of the annular base. The sealing ring according to the present disclosure is used for a sealing between side surfaces of two components (such as a male connector and a female connector of a connector assembly) that cooperate with each other by insertion, and by the above configuration, an insertion force that an operator needs to apply during the insertion operation between the two components can be reduced.

Abstract: Embodiments of this application disclose a head-mounted wireless headset and a communication method thereof, and relate to the communication field. A specific solution is as follows: The head-mounted wireless headset includes: a first headphone, including: a first short-range wireless communication chip and a first radio frequency antenna, where the first short-range wireless communication chip is coupled to the first radio frequency antenna; a second headphone, including: a second short-range wireless communication chip and a second radio frequency antenna, where the second short-range wireless communication chip is coupled to the second radio frequency antenna; and a data bus, separately connected to the first short-range wireless communication chip and the second short-range wireless communication chip, and configured to provide a physical link required for communication between the first short-range wireless communication chip and the second short-range wireless communication chip.

Abstract: A camera module comprises a supporting member for supporting a sensor chip to move relative to a lens for correcting camera shake, a plurality of bulges is provided between the supporting member and a bottom plate. The bulges provide a reduced resistance to sliding on the supporting member. An electronic device using the module is also disclosed.

Abstract: A photographing device able to not requiring installation and space in a non-display area of an electronic device includes a base, a prism mechanism, and a photosensitive mechanism. The base includes a receiving groove, and inclined first and second stop surfaces. The prism mechanism is rotatably coupled to the base, accommodated in the receiving groove, and includes incident and light-emitting surfaces at right angles. The first and second stop surfaces are in the rotation path of the light emitting surface. The photosensitive mechanism includes a photosensitive surface parallel to the first stop surface. When the light emitting surface resists against the first stop surface, the light emitting surface faces the photosensitive surface, and at least part of the incident surface is located outside the receiving groove. When the light emitting surface resists against the second stop surface, the incident surface is accommodated in the receiving groove.

Abstract: The present disclosure provides a compressor and an air conditioner. The compressor includes a housing; a first rotating shaft mounted in the housing; a connecting assembly sleeved on the first rotating shaft; and a first rotor assembly including a first rotor and a second rotor coaxially disposed on the connecting assembly. The connecting assembly carries the first rotor and the second rotor to rotate about the first rotating shaft together. The connecting assembly is configured to limit the relative positions of the first rotor and the second rotor, such that there exists a clearance between the first rotor and the second rotor. The present disclosure can maintain a clearance between the first rotor and the second rotor without increasing the number of components of the compressor.

Abstract: The present disclosure provides a female connector which comprises a housing and a retaining clamp. The housing has a channel and a housing window. The retaining clamp is around at least part of the housing and comprises a pair of arms deflectable towards or away from each other. Each arm is provided with a retaining groove, enters the channel of the housing through the housing window and is in a travel path of a retaining flange of a male connector. During the female connector receiving the male connector, when the retaining flange is in contact with the arms but is not yet aligned with the retaining grooves, it deflects the arms out of the travel path of the retaining flange, when the retaining flange is aligned with the retaining grooves, the arms return to the travel path of the retaining flange to accommodate the retaining flange in the retaining grooves.

Abstract: The present disclosure provides a female connector. The female connector comprises a housing, a retaining clamp and an indicating clamp. The housing defines therein a channel extending in an axial direction and is provided with a housing window. The retaining clamp is arranged around at least part of the housing and can at least partially enter the channel through the housing window to secure the female connector with a male connector. The indicating clamp is arranged around at least part of the retaining clamp and the housing, and is releasably locked to the retaining clamp. The indicating clamp is locked to the retaining clamp when the male connector is received by the female connector but not yet secured in position, and is released from the retaining clamp so as to be removable from the retaining clamp when the male connector is secured in position in the female connector.

Abstract: The present disclosure provides a female connector for receiving and being secured with a male connector. The female connector comprises a housing and an indicating slider. The housing defines therein a channel extending in an axial direction and is provided with an opening extending in the axial direction. The indicating slider is slidably connected to the housing and configured to be slidable in the axial direction. The indicating slider extends from the opening into the channel of the housing, and is configured to be capable of sliding under the push of a retaining flange of the male connector when the female connector receives the male connector through the channel, and to reach an indicating position when the male connector is secured in place in the female connector.

Abstract: A method and an apparatus for establishing a Bluetooth data channel are provided. In the method, before starting a service in a first mode, a first communications apparatus negotiates with a second communications apparatus to determine a first parameter. The first parameter may be used for establishing a data channel between the first communications apparatus and the second communications apparatus. After starting the service in the first mode, the first communications apparatus sends a first message to the second communications apparatus. The first message is used to request the second communications apparatus to establish the data channel based on the first parameter. According to the foregoing method, before starting the service in the first mode, the first communications apparatus negotiates with the second communications apparatus to determine the first parameter.

Abstract: A compressor and an air conditioning system. The compressor includes a low-pressure-stage compressor body and a high-pressure-stage compressor body, where the low-pressure-stage compressor body is provided with a low-pressure-stage suction port and a low-pressure-stage exhaust port, the high-pressure-stage compressor body is provided with a high-pressure-stage suction port and a high-pressure-stage exhaust port, a communication pipeline is arranged between the low-pressure-stage exhaust port and the high-pressure-stage suction port, the low-pressure-stage suction port communicates with a low-pressure-stage gas source, and the high-pressure-stage suction port has a first state of communication with the low-pressure-stage exhaust port and a second state of communication with the low-pressure-stage gas source.

Abstract: Disclosed are a silencer and a compressor with same. The silencer includes a housing, a gas inlet end of the housing being provided with a protrusion extending into an interior of the housing, a portion of the protrusion approximate to a gas outlet end of the housing being closed, and the gas inlet end of the housing being provided with at least two gas inlets around the protrusion. A part of a gas flow enters the housing through the gas inlets, and other part of the gas flow impacts the protrusion and then at least partially flows back and enters the housing through the gas inlets.

Abstract: An exhaust assembly and a compressor including the exhaust assembly. The exhaust assembly includes an exhaust bearing seat; an intake cavity is provided at an intake end of the exhaust bearing seat; an exhaust cavity is provided at an exhaust end of the exhaust bearing seat; the intake cavity and the exhaust cavity are staggered with each other in the axial direction of the exhaust bearing seat; the exhaust bearing seat is provided with a flow passage for connecting the intake cavity with the exhaust cavity; and an oil separation structure is provided in the exhaust cavity.

Abstract: The present disclosure is related to a slide valve, a slide valve adjustment mechanism and a screw compressor. The slide valve includes a static slide valve and a moving slide valve, wherein the static slide valve is fixedly installed in a slide valve cavity and provided with an axially-penetrating valve hole; a plurality of bypass holes communicating with the valve hole (110) are formed in the sidewall of the static slide valve, and an exhaust port is formed in the sidewall of one end of the static slide valve. The slide valve may avoid scraping between the slide valve and a screw rotor and the slide valve cavity. Gaps between the slide valve and parts which cooperate with same are reduced, so that the leakage is reduced while the energy efficiency of the compressor is increased.

Abstract: A compressor and an air conditioning system. The compressor includes two compressing structures and an intermediate gas supplement structure. A communication pipe is provided between a gas exhaustion port of one compressing structure and a gas suction port of another compressing structure in the two compressing structures. The intermediate gas supplement structure is in communication with the communication pipe. At least one compressing structure is provided with a gas supplement structure. In the compressor and the air conditioning system, the gas supplement structure is provided to at least one compressing structure, so that at least two levels of gas supplement to the compressor are provided.

Abstract: Disclosed is a multi-stage compressor, including a gas supplement structure, a low-pressure stage chamber and a high-pressure stage chamber. The gas supplement structure includes a gas supplement inlet and a perforated member wherein the gas supplement inlet is arranged at an upstream location of an exhaust gas flow of the low-pressure stage chamber; the perforated member is arranged at a downstream location of the exhaust gas flow of the low-pressure stage chamber; a liquid refrigerant sprayed from the gas supplement inlet is mixed with exhaust gas of the low-pressure stage chamber to impact on the perforated member; the liquid refrigerant is dispersed, the dispersed liquid refrigerants are re-mixed with the exhaust gas of the low-pressure stage chamber and enter the high-pressure stage chamber.

Abstract: Disclosed are an oil separation structure and a compressor. The oil separation structure includes a housing and a filtering screen. A core is disposed at a center of the housing, and a plurality of guiding members for guiding gas flow are provided along circumferential directions of the core. The filtering screen is disposed on a periphery of the housing, and a cavity is formed between the filtering screen and the core. The housing is provided with a gas inlet and a gas outlet which are in communication with the cavity, and the gas inlet is configured to introduce the gas flow into the cavity; the guiding members are configured to guide the gas flow to rotationally flow around the core, and the gas outlet is configured to discharge the gas flow from the cavity.

Abstract: A method and an apparatus for establishing a Bluetooth data channel are provided. In the method, before starting a service in a first mode, a first communications apparatus negotiates with a second communications apparatus to determine a first parameter. The first parameter may be used for establishing a data channel between the first communications apparatus and the second communications apparatus. After starting the service in the first mode, the first communications apparatus sends a first message to the second communications apparatus. The first message is used to request the second communications apparatus to establish the data channel based on the first parameter. According to the foregoing method, before starting the service in the first mode, the first communications apparatus negotiates with the second communications apparatus to determine the first parameter.

Abstract: The present disclosure is related to a slide valve, a slide valve adjustment mechanism and a screw compressor. The slide valve includes a static slide valve and a moving slide valve, wherein the static slide valve is fixedly installed in a slide valve cavity and an provided with an axially-penetrating valve hole; a plurality of bypass holes communicating with the valve hole (110) are formed in the sidewall of the static slide valve, and an exhaust port is formed in the sidewall of one end of the static slide valve. The slide valve may avoid scraping between the slide valve and a screw rotor and the slide valve cavity. Gaps between the slide valve and parts which cooperate with same are reduced, so that the leakage is reduced while the energy efficiency of the compressor is increased.