7results about How to "Control on and off" patented technology

This application discloses a piezoelectric pump, a gas circulation mechanism, and a circulation device. The circulation device includes a piezoelectric pump or a gas circulation mechanism. The piezoelectric pump includes at least one set of sub-pumps. Each sub-pump includes a housing and a vibration assembly. The housing includes a receiving cavity, at least one air inlet channel, and at least one combined air outlet channel communicating with the receiving cavity. The receiving cavity is connected to an external space through the air inlet channel and the combined air outlet channel. A dispersion structure is provided on the cavity wall of the receiving cavity. The vibration assembly is disposed in the receiving cavity, and the dispersion structure is used to disperse the reflected airflow from the cavity wall of the receiving cavity when the vibration assembly vibrates. The piezoelectric pump in this application can reduce operating noise and its own size, thereby meeting the user's dual requirements for quiet operation and lightweight design when using the circulation device.

The embodiment of the utility model discloses a test device, a test circuit and a test system, and relates to the field of test equipment. The testing device comprises a plurality of module modules, a plurality of channel modules, a control circuit, a first simulation module and a second simulation module. The plurality of module modules are arranged in parallel and are correspondingly connected with the plurality of acquisition modules; the plurality of channel modules are connected with the plurality of module modules; the control circuit is used for controlling the plurality of module modules and the plurality of channel modules; the first simulation module is connected with the plurality of channel modules; and the second simulation module is connected with the plurality of module modules. And the control circuit is configured to control the tested module to be communicated with the first simulation module through the plurality of connected channel modules when the tested acquisition module is tested. The testing device can quickly and independently test a single battery module, and the testing efficiency is improved.

This invention relates to the field of pipeline temperature control switch technology, and more particularly to a temperature control valve, comprising a valve body, a valve core, a temperature control unit, and a drive device. The valve body has an inlet channel and an outlet channel separated by a partition, and the partition has a connecting port. The valve core includes a push block positioned above the connecting port, with multiple arc teeth on its lower part. The output end of the drive device is connected to the push block. A sleeve is provided on the push block, with one end of a rotating rod connected to the output end of a drive motor, and the other end threadedly connected to the sleeve. The drive device causes the push block to gradually move towards the connecting port, and the lower part of the arc teeth gradually enters the connecting port. Water flowing through the connecting port exits through the channel between two arc teeth. Multiple channels between adjacent arc teeth form a multi-channel structure, reducing pressure loss and side leakage, greatly improving the performance of this temperature control valve. The threaded connection allows for more precise control of the channel opening size and flow rate ratio, resulting in more accurate temperature control.

This utility model provides a light-guiding button structure and an electronic device with a button structure, relating to the field of light-guided buttons. The light-guiding button structure includes a housing with a light-transmitting button hole communicating with the inner and outer sides of the housing; a light guide disposed within the light-transmitting button hole and extending to the inner side of the housing; and a switch and an LED, electrically connected to each other and respectively disposed within the inner side of the housing; wherein the light guide is at least partially located within the light area of ​​the LED to guide the light emitted by the LED to the light-transmitting button hole; the movement of the light guide within the light-transmitting button hole drives the movable part of the switch to reciprocate, thereby controlling at least the on / off state of the LED.

This application provides a charging control circuit, a charging system, and an electric vehicle. The charging control circuit consists of an analog circuit, including: a reverse protection module that receives and unidirectionally transmits a charger signal input from the charger signal input terminal; a signal conditioning module that receives the charger signal output from the reverse protection module and conditions it into a charging control drive signal, wherein the voltage of the charging control drive signal is lower than that of the charger signal; a charging control drive module that receives the charging control drive signal output from the signal conditioning module and conditions it into a charging control signal; and a charging control module including at least one switching device connected to the charger negative terminal and the battery negative terminal, the state of which is controlled by the charging control signal. The technical solution provided by this application reduces the risk of electric shock to users and improves the safety of the electric vehicle charging system while ensuring battery charging efficiency.

The embodiment of the application provides an ammonia refrigeration system, relates to the ammonia refrigeration technical field, and comprises an ammonia preparation device and an automatic control component, the ammonia preparation device comprises an ammonia storage tank and a low-pressure circulating tank, and the outlet of the ammonia storage tank is communicated with the low-pressure circulating tank through a conveying pipeline; the automatic control component comprises a controller and at least two liquid level meters, the at least two liquid level meters are signal-connected with the controller, the at least two liquid level meters are arranged in the ammonia storage tank and the low-pressure circulating tank respectively, and the controller is used for controlling the on-off of the conveying pipeline between the ammonia storage tank and the low-pressure circulating tank according to the monitoring information of the liquid level meters. When the liquid levels in the ammonia storage tank and the low-pressure circulating tank exceed the set values of the liquid level meters, the controller can adjust the liquid levels in the ammonia storage tank and the low-pressure circulating tank, realizes automatic control, does not need manual adjustment of staff, improves the accuracy of ammonia liquid control, and improves the safety of system operation.

The application discloses a three-dimensional target detection and data processing system based on a meta universe, reduces the number of detection hardware devices, saves a large amount of resources, reduces CPU load, and can keep the simulated data in a virtual environment consistent with the data of human eyes and three-dimensional targets in reality. The technical scheme is as follows: the system comprises a three-dimensional detection and transmission module, which acquires information of a three-dimensional object to be identified and transmits the information of the three-dimensional object to a three-dimensional target identification module; the three-dimensional target identification module acquires an optical focal point of an eyeball at a current time; a three-dimensional detection and calculation module performs identification detection based on the information of the three-dimensional object and the eyeball data; and a data recording module stores the result of the three-dimensional detection and calculation module.