Merry Electronics (suzhou) Co., Ltd.

Pioneer Energy (jiangsu) Co., Ltd.

Xiaolong Liu

Guanghong Yu

Li Sun

Hong Wang

Xu Liu

Yuanqiao Peng

Changjun Wang

ChaoYong Yang

The present disclosure provides a head-mounted device including a display component, a speaker component, and a connecting component. Two ends of the connecting component respectively are connected to the display component and the speaker component. The connecting component includes a body, a rotating bracket, and a locking block. The body is connected to the display component and has an opening. The rotating bracket is disposed in the body. One end of the rotating bracket has a first protrusion portion, a second protrusion portion, and an accommodating groove. The other end of the rotating bracket passes through the opening and is connected to the speaker component. The locking block is disposed in the body and is movable to close to or away from the accommodating groove. When the locking block is engaged with the accommodating groove, the rotating bracket is limited to rotate.

Head-mounted device

A medical hearing-aid earphone includes a housing, and a battery assembly and a circuit board assembly located in the housing, where the housing is internally provided with a sound cavity, and the medical hearing-aid earphone further includes a speaker assembly located in the housing and a holder sleeved outside the speaker assembly. The holder and the speaker assembly divide the sound cavity into a front sound cavity and a rear sound cavity, where a relative position of the speaker assembly in the holder is adjustable during assembling. The medical hearing-aid earphone is convenient to adjust space sizes of a front sound cavity and a rear sound cavity, so that the medical hearing-aid earphone can be customized according to requirements of different users and has a larger application range.

Medical hearing-aid earphone

The utility model discloses a novel phase change heat storage device, comprising a housing, wherein the housing is internally provided with a lining; an insulating layer is disposed between the lining and the housing; the lining is internally filled in with a phase change material; a coiled pipe is embedded in the phase change material; the inlet and outlet of the coiled pipe both extend out of the lining and are respectively welded with and communicate with a main water inflow pipe and a main water outflow pipe, so all welds between the coiled pipe and the main water inflow pipe and main water outflow pipe are positioned outside the lining and are not soaked by the phase change material. The lining is provided with at least one partition board; the partition board divides the inner space of the lining into independent spaces such that the phase change material is respectively positioned in the independent spaces divided by the partition board. Compared with the prior art, the utility model has a simple and novel structure design, solves the defects of existing phase change heat storage devices, greatly improves the heat exchange effect of the phase change heat storage device, reduces the production cost of the device, and prolongs the service life of the device.

Phase change heat storage device

Growing community of inventors

Suzhou, China

Xiaolong Liu