Abstract: The present disclosure provides a vibration motor, including a housing with an accommodation space; a vibration part and a stator contained in the accommodation space; an elastic support suspending and supporting the vibration part in the accommodation space for providing elastic restoring force to the vibration part. The elastic support includes a first fixed part fixed on the vibration part, an elastic arm with one end thereof connected to the first fixed part, and a second fixed part formed by bending another end of the elastic arm and fixed on the housing. An extension direction of the first fixed part is perpendicular to a vibration direction of the vibration part, and an extension direction of the second fixed part is parallel to the vibration direction. Thus, the service life of the elastic support is improved.

Abstract: An identity authentication method is disclosed in embodiments of the present application. When a requester and an authentication access controller perform identity authentication using an authentication mechanism of a pre-shared key, the identity information of entities is transmitted in the form of ciphertext, thereby preventing the identity information of the entities from being exposed during the transmission, so that attackers cannot obtain private or sensitive information. The mutual or unilateral identity authentication between the authentication access controller and the requester is achieved while ensuring the confidentiality of the entity identity and related information, thereby laying a foundation for ensuring that the user accessing the network is legitimate and/or the network accessed by the user is legitimate.

Abstract: A water heating system includes a first water heater having a first heating source of a first type, and a second water heater having a second heating source of a second type. The system further includes a valve having a first interface connected to the cold water source, a second interface connected to the first cold water inlet of the first water heater, a third interface connected to a second hot water outlet of the second water heater, and a fourth interface connected to the first hot water outlet of the first water heater. A motor positions the valve to one of at least three positions Finally, the system also includes a control circuit including a temperature sensor near the first hot water outlet of the first water heater, and a controller configured to control the motor based on a sensed temperature by the temperature sensor.

Abstract: A water heating system includes a first water heater having a first heating source of a first type, and a second water heater having a second heating source of a second type. The system further includes a valve having a first interface connected to the cold water source, a second interface connected to the first cold water inlet of the first water heater, a third interface connected to a second hot water outlet of the second water heater, and a fourth interface connected to the first hot water outlet of the first water heater. A motor positions the valve to one of at least three positions Finally, the system also includes a control circuit including a temperature sensor near the first hot water outlet of the first water heater, and a controller configured to control the motor based on a sensed temperature by the temperature sensor.

Abstract: A water heating system and method of operating the same. The system includes a first water heater having a first heating source of a first type. The system further includes a second water heater having a second heating source of a second type. A valve having a first interface that is connected to the cold water source, a second interface that is connected to a first cold water inlet of the first water heater, a third interface that is connected to a second hot water outlet of the second water heater, and a fourth interface connected to the hot water outlet of the first water heater. A motor positions the changeover valve to one of at least three positions. A control circuit includes a temperature sensor near the first hot water outlet of the first water heater, and a controller coupled to the first temperature sensor and the motor.

Abstract: A water heating system and method of operating the same. The system includes a first water heater having a first heating source of a first type. The system further includes a second water heater having a second heating source of a second type. A valve having a first interface that is connected to the cold water source, a second interface that is connected to a first cold water inlet of the first water heater, a third interface that is connected to a second hot water outlet of the second water heater, and a fourth interface connected to the hot water outlet of the first water heater. A motor positions the changeover valve to one of at least three positions. A control circuit includes a temperature sensor near the first hot water outlet of the first water heater, and a controller coupled to the first temperature sensor and the motor.