1020 results about "Battery holder" patented technology

A battery holder containing positive temperature coefficient (PTC) resetable fuse to electronically limit the maximum current that can be drawn from circuits built using reusable electronic component housings. A power supply with similar housing to reusable battery holders, also designed to limit maximum current and perform electrically equivalent to two or more battery holders. A reusable electronic housing with means for attaching any two leaded electronic component for insertion into quick connect assembly system. This housing also contains a positive temperature coefficient (PTC) resetable fuse to electroniclly limit the maximum current that can be sent through the attached two leaded component.

The invention relates to a pocket type digital radiation dosemeter comprising of a detector, which converts the ionisation in the detector caused by the incidence of ionising radiation of certain energy range into electrical impulses, a low power pulse amplifier, that amplifies the electrical pulses from the detector to detectable amplitudes, a discriminator circuit, that is used to reject pulses of origin other than those caused by the ionising radiation, a programmable divider circuit for calibrating the dosemeter, an electronic counting circuit and a six digit LCD display. The sensitivity of the dosemeter is 1 count per μSv (micro Sievert) and the accuracy is within ±15% from 60 keV to 1.25 Mev of X or Gamma radiation. A metallic energy compensation filter and a discriminator threshold modulation circuit are used to provide uniform response within ±15% from 60 KeV to 1.25 MeV. The Digital display indicates at any instant the total X or Gamma radiation dose, in μSv, received by the dosemeter since the time at which the dosemeter was switched on. The dosemeter is designed for very low power consumption and is powered by two coin type Li batteries (Type CR2320). It is capable of over 500 hours of continuous operation before having to replace the batteries. A blinking LED indicates low battery condition when 8 hours of battery life is still left. The entire circuitry and the battery holder are mounted on a single printed circuit board. Surface mount components are used to make the unit compact. The dosemeter is compact (110 mm L×30 mm W×14 mm H excluding Clip) and light in weight (60 gm).

An electric wheeled apparatus comprises a main body, a drive wheel supported by the main body in a rotatable manner, an electric motor configured to apply torque to the drive wheel, a battery holder configured to removably receive a plurality of battery packs, and a circuit unit configured to electrically connect one or more battery packs attached to the battery holder to the motor regardless of a number of battery packs attached to the battery holder.

The present application relates to an electronic cigarette and an assembly method for the electronic cigarette, the electronic cigarette comprises a battery assembly and an atomizer assembly, the battery assembly includes a battery holder and a battery which is removably contained in the battery holder; the battery includes a first electrode and a second electrode, the battery holder is inserted into the atomizer assembly, and the battery assembly is removably connected to the atomizer assembly; one end of the battery holder is provided with an electrical connector, the electrical connector is respectively electrically connected to the second electrode and the atomizer assembly, and the first electrode is abutted against the atomizer assembly and is electrically connected to the atomizer assembly.

An electronic cigarette comprises an atomizer and a battery component connecting with the atomizer at one end thereof. The battery component comprises a battery sleeve, a rechargeable battery received in the battery sleeve, a battery seat disposed at the other end of the battery component opposite to the one end thereof to connect with the atomizer, and a pneumatic switch disposed in the battery component to electrically connect between the rechargeable battery and the atomizer. An opening is formed at a distal end of the battery seat facing away from the atomizer to allow electrical connection between a power supply and the rechargeable battery extending through the opening. The pneumatic switch is responsive to air flowing in the battery component so as to control electrical connection between the rechargeable battery and the atomizer and start the atomizer based on the air flowing.