42results about How to "Eliminate vibration noise" patented technology

The invention provides a touch display device and a touch display. The touch display device comprises a touch electrode and a backlight module opposite to the touch electrode. The backlight module comprises a backlight film material and a backlight iron frame for supporting the backlight film material. The backlight film material is arranged between the touch electrode and the backlight iron frame. The touch control electrodes and the backlight iron frame are electrically connected with a touch control signal end together. The touch control signal end is used for transmitting touch control signals to the touch control electrodes and the backlight iron frame. The touch electrodes and the backlight iron frame receive the same touch signals, so that the capacitive coupling effect between thetouch electrodes and the touch iron frame is eliminated. The touch sensitivity is improved. The vibration noise of the backlight film material is eliminated. The touch display provided by the invention comprises the touch display device, so that the touch display has the advantages of the touch display device.

The invention discloses an oscillation mechanism for a soil VOCs treatment instrument and the soil VOCs treatment instrument, and relates to an oscillation mechanism for oscillating a soil sample. Thepurpose of the invention is to provide an oscillation mechanism for a soil VOCs treatment instrument and a soil VOCs treatment instrument with simple structure and excellent oscillation effects. Theoscillation mechanism for the soil VOCs treatment instrument comprises sampling bottles, the oscillation mechanism is used for vibrating the sampling bottles, the oscillation mechanism is arranged inan acute-angle inclined manner relative to the ground, the sampling bottles can automatically flow to the next procedure after finishing oscillation in the oscillation mechanism, the oscillation mechanism comprises oscillation guide rails, the oscillation guide rails are arranged in the flow direction of the sampling bottles and are arranged in an acute-angle inclined manner relative to the ground, and a plurality of sampling bottles are sequentially arranged on the oscillation guide rails in the flow direction and are horizontally arranged relative to the oscillation guide rails. The soil VOCs treatment instrument also comprises a headspace mechanism, the headspace mechanism is used for carrying out the headspace to the sampling bottles, the headspace mechanism is arranged in parallel relative to the ground, and the sampling bottles can automatically flow from the oscillation mechanism to the headspace mechanism.

The invention discloses an indoor safety lock which comprises a fixed base and a baffle block, wherein the fixed base comprises a mounting plate and a hinged block; the hinged block and the mounting plate are integrally formed; a strip-shaped hole is formed in the hinged block; one side of the baffle block is provided with a rotary shaft; the rotary shaft is inserted into the strip-shaped hole and capable of rotating in the strip-shaped hole; an elastic part capable of horizontally supporting the rotary shaft is arranged in the strip-shaped hole; the inner side of the hinged block is provided with a clamping edge; and a clamping slot matched with the clamping edge is arranged on the baffle block. According to the scheme, during mounting, only the fixed base is required to be mounted on a door frame, and a fixing part is not required to be arranged on a door plate, so that damages to a door are relieved.

The invention discloses a method for manufacturing iron core laminations. After the iron core laminations of the same type are stacked into a stack of iron core laminations, they are connected and fixed at the excess portion beyond the finished iron core, and then wire cutting, laser cutting or other processing methods are used to Cutting forms the middle shape of the iron core, and then installs the inner pressure plate to compress the stack of scattered iron cores and then cuts the shape of the iron core. The accuracy of the cutting process is used to ensure the accuracy of the size and position of the iron core. . In the manufacturing method of the core laminations of the present invention, the tooling used is only a pressure plate with good parallelism and common fasteners, which requires less accuracy of the tooling, and can solve the problem of silicon steel sheet crystal cracking and partial insulating layer in the traditional lamination method. The problem of damage, loss and high heat generation can fully fill the gaps between the core pieces, strengthen the heat conduction of the core, and eliminate the fanning phenomenon of the core and the vibration noise of the core.

The invention relates to a fan module, which includes a fan and a noise reduction device arranged on the fan. The silencing device includes a first silencing component, the first silencing component is attached to one side of the fan, and an airflow channel corresponds to an air outlet of the fan, wherein the material of the first silencing component is a porous material for absorbing Wind cutting sound or vibration generated during operation to reduce the noise generated by the fan during operation.

The invention provides an energy-saving exciting diversion iron-core reactor, which comprises an iron core and an iron core assembly device, wherein the iron core comprises an upper yoke, a lower yoke and core columns; coils are wound outside the core columns in a hidden manner; each core column is formed by stacking multiple groups of air gap plates and magnetic conductive discuses at intervals and is arranged between the upper yoke and the lower yoke; hollow magnetic guide cakes are arranged between each core column and the upper yoke and between each core column and the lower yoke respectively; the iron core assembly device comprises bases, center pull rods arranged on the base and pressure plates; the pressure plates are arranged at the upper part of the upper yoke; the bases are arranged at the lower part of the lower yoke; each center pull rod runs through predefined holes in the upper yoke, the lower yoke and the corresponding core column; the upper end of each center pull rod is fixed to the corresponding pressure plate; and the lower end of each center pull rod is fixed to the corresponding base. The energy-saving exciting diversion iron-core reactor has the beneficial effects that (1) the exciting heating problem in the magnetic flux shunting process is solved; (2) vibration noise caused by an AC fundamental wave is eliminated; and (3) the total loss is reduced by 25% under the same conditions of a traditional product and the hot-spot temperature rise is reduced to within 90K from more than 150K.

The invention relates to a double mover linear compressor, comprising an outer casing, in which a cylinder is arranged along the axis, and the two form a circular cavity; the wall of the cylinder is provided with a three-phase AC coil winding; the circular cavity is provided with Piston A, with a plurality of permanent magnets A on the piston A; a piston B in the cylinder, and a plurality of permanent magnets on the piston B; both the piston A and the piston B are under the electromagnetic action of the three-phase AC coil winding Left and right movement; one-way inlet valve A and one-way outlet valve A are arranged on the left and right end walls of the cylinder cavity, and one-way inlet valve B and one-way outlet valve B are arranged on the left and right end walls of the cylinder. The beneficial effects achieved by the invention are: low noise, no strong vibration noise, easy noise elimination and good cooling effect.

A key assembly which is configured to provide improved click feeling to a user and an electronic device having the same are provided. The key assembly includes a key body of elastic materials and contact projections, each of the contact projections which is protruded and formed from the key body and presses a switch device spaced apart from the key body by a gap providing a certain interval, wherein the key body is installed such that a contact surface of each of the contact projections is in contact with and pushed back by a certain distance by a pre-loading force of the switch device.