Yarn energy harvesters containing conducing nanomaterials (such as carbon nanotube (CNT) yarn harvesters) that electrochemically convert tensile or torsional mechanical energy into electrical energy. Stretched coiled yarns can generate 250 W/kg of peak electrical power when cycled up to 24 Hz, and can generate up to 41.2 J/kg of electrical energy per mechanical cycle. Unlike for other harvesters, torsional rotation produces both tensile and torsional energy harvesting and no bias voltage is required, even when electrochemically operating in salt water. Since homochiral and heterochiral coiled harvester yarns provide oppositely directed potential changes when stretched, both contribute to output power in a dual-electrode yarn. These energy harvesters were used in the ocean to harvest wave energy, combined with thermally-driven artificial muscles to convert temperature fluctuations to electrical energy, sewn into textiles for use as self-powered respiration sensors, and used to power a light emitting diode and to charge a storage capacitor.

A toothbrush includes a removable, replaceable brush head that includes a clip that also serves as a removal tool for a spent brush head. The toothbrush may be a manually-wound or charged, powered toothbrush that includes a winding mechanism, an energy storage element, and an output gear train to cause a rotating, oscillating or sweeping brush head to move, thus improving the efficacy of the user's oral-care regimen.

A toothbrush includes a removable, replaceable brush head that includes a clip that also serves as a removal tool for a spent brush head. The toothbrush may be a manually-wound or charged, powered toothbrush that includes a winding mechanism, an energy storage element, and an output gear train to cause a rotating, oscillating or sweeping brush head to move, thus improving the efficacy of the user's oral-care regimen.

Provided herein are a flexible organic light-emitting display (OLED) and a spring component. The film layers are pulled one on one by spring components to make the film layers flat when being unfolded and free of irreversible deformation when being folded. A lubricating layer is disposed between adjacent film layers so that the action force between the adjacent film layers is reduced, thereby making the flexible organic light-emitting display (OLED) flat and free of creases when being unfolded.

Provided herein are a flexible organic light-emitting display (OLED) and a spring component. The film layers are pulled one on one by spring components to make the film layers flat when being unfolded and free of irreversible deformation when being folded. A lubricating layer is disposed between adjacent film layers so that the action force between the adjacent film layers is reduced, thereby making the flexible organic light-emitting display (OLED) flat and free of creases when being unfolded.

The present invention utilizes operation of a valve actuator to generate electrical power. A portion of the mechanical energy generated by operation of a valve actuator is converted to electrical energy. The mechanical energy may be converted to electrical energy at the same time as the valve actuator is operating or the mechanical energy may be stored for later conversion. A valve actuator may be operated manually, electrically, pneumatically, or hydraulically. Generated electrical energy may also be stored.

The present invention utilizes operation of a valve actuator to generate electrical power. A portion of the mechanical energy generated by operation of a valve actuator is converted to electrical energy. The mechanical energy may be converted to electrical energy at the same time as the valve actuator is operating or the mechanical energy may be stored for later conversion. A valve actuator may be operated manually, electrically, pneumatically, or hydraulically. Generated electrical energy may also be stored.

A mechanism (100) for storing and releasing mechanical energy, which stores a low-power energy continuously inputted by a power transmission mechanism into an energy storage mechanism, and then controllably drives output in a high-power manner. The mechanism comprises a bracket (10), a supporting main shaft (11) arranged on the bracket (10), a driving gear (101) which sleeves over and rotates about the supporting main shaft (11), wherein arranged on one side of the driving gear (101) is at least one set of energy storage and release device (102). The mechanism (100) for storing and releasing mechanical energy is structurally simple and reliable. A light-weight high-efficiency drive mechanism may be fabricated by using a light-weight structural material or a composite material, which may store a large amount of low-power energy which is inputted continuously. The stored energy may then be released in a high-power manner by means of manual operations or smart electronic control, in order to drive equipment which require higher power to drive, or to be fed back to an original driving device by means of a designated transmission mechanism to be used as auxiliary kinetic energy. The mechanism features high operation efficiency and low energy consumption, and is thus high efficient in storing and releasing energy.

A mechanism (100) for storing and releasing mechanical energy, which stores a low-power energy continuously inputted by a power transmission mechanism into an energy storage mechanism, and then controllably drives output in a high-power manner. The mechanism comprises a bracket (10), a supporting main shaft (11) arranged on the bracket (10), a driving gear (101) which sleeves over and rotates about the supporting main shaft (11), wherein arranged on one side of the driving gear (101) is at least one set of energy storage and release device (102). The mechanism (100) for storing and releasing mechanical energy is structurally simple and reliable. A light-weight high-efficiency drive mechanism may be fabricated by using a light-weight structural material or a composite material, which may store a large amount of low-power energy which is inputted continuously. The stored energy may then be released in a high-power manner by means of manual operations or smart electronic control, in order to drive equipment which require higher power to drive, or to be fed back to an original driving device by means of a designated transmission mechanism to be used as auxiliary kinetic energy. The mechanism features high operation efficiency and low energy consumption, and is thus high efficient in storing and releasing energy.

The objective is to realize a rotation storage device with a lightweight and straightforward configuration that can release the energy of various urging means, typically a flat coil spring, over a more extended period and increase the urging force. The rotation storage device includes a plurality of single unit rotation storage devices that comprise of an urging means for urging of the rotational force and a one-way bearing with one end of the urging means fixed to one of its outer ring or inner ring, wherein a plurality of single unit rotation storage devices are characterized in that the outer ring and inner ring of the one-way bearings are connected, the other end of the urging means connected to one end of the urging means of the adjacent unit rotation storage device, and the rotation force is output between the outer ring and inner ring of the one-way bearing.