An electronic device and a key coupling unit therefor are disclosed. The key coupling unit includes a key configured in a specific shape, a key guide frame configured to guide pressing of the key, and a key circuit board configured to input a signal corresponding to the pressing of the key. The key coupling unit is fixed in a settling area of a bracket. A bumper is formed to protrude from the lower part of the key circuit board. A pressing part is formed in the bracket to face the bumper of the key circuit board. A command signal of a corresponding key is transmitted to the key circuit board by converting to an electric signal if the bumper presses the pressing part. The bumper and the pressing part are located by moving in a lateral direction from the center of the settling area of the bracket.

An electronic device and a key coupling unit therefor are disclosed. The key coupling unit includes a key configured in a specific shape, a key guide frame configured to guide pressing of the key, and a key circuit board configured to input a signal corresponding to the pressing of the key. The key coupling unit is fixed in a settling area of a bracket. A bumper is formed to protrude from the lower part of the key circuit board. A pressing part is formed in the bracket to face the bumper of the key circuit board. A command signal of a corresponding key is transmitted to the key circuit board by converting to an electric signal if the bumper presses the pressing part. The bumper and the pressing part are located by moving in a lateral direction from the center of the settling area of the bracket.

A key switch includes a base plate, a key top, a pair of link members, and a switch mechanism. The key top is above the base plate. The link members support the key top and operate in an interlocked manner to allow the key top to be lifted and lowered with respect to the base plate. One of the link members includes a projecting portion at a distal end of an arm of the link member. The other one of the link members includes a concave receiving portion at a distal end of an arm of the link member. The projecting portion is rotationally fitted to the concave receiving portion. The switch mechanism is disposed between the base plate and the key top and is configured to open and close a contact portion of an electric circuit in accordance with lifting and lowering operation of the key top.

A key switch includes a base plate, a key top, a pair of link members, and a switch mechanism. The key top is above the base plate. The link members support the key top and operate in an interlocked manner to allow the key top to be lifted and lowered with respect to the base plate. One of the link members includes a projecting portion at a distal end of an arm of the link member. The other one of the link members includes a concave receiving portion at a distal end of an arm of the link member. The projecting portion is rotationally fitted to the concave receiving portion. The switch mechanism is disposed between the base plate and the key top and is configured to open and close a contact portion of an electric circuit in accordance with lifting and lowering operation of the key top.

A control system includes a switch circuit, a buffering circuit, and a motherboard. The switch circuit is configured to output a switch signal having a trigger time. The buffering circuit determines whether the trigger time of the switch signal is equal to a predetermined time. If the trigger time of the switch signal is equal to the predetermined time, the buffering circuit outputs a signal to the motherboard. The motherboard performs a power off operation.

A medical device includes a housing that has a front face and a side face. The housing defines a window cavity on the front face and a button cavity in the side face. A display is disposed in the housing. The display is aligned in the housing for viewing through the window cavity. A window covers the display in the window cavity, and the display is at least partially visible through the window. The window extends along the front face to the button cavity in the side face. A button element is received in the button cavity. The button element and the window are separate components. The button element has opposing end edges that align with the end edges of the window where the button element and window meet to provide an impression that the window and the button element are integral with one another.

A medical device includes a housing that has a front face and a side face. The housing defines a window cavity on the front face and a button cavity in the side face. A display is disposed in the housing. The display is aligned in the housing for viewing through the window cavity. A window covers the display in the window cavity, and the display is at least partially visible through the window. The window extends along the front face to the button cavity in the side face. A button element is received in the button cavity. The button element and the window are separate components. The button element has opposing end edges that align with the end edges of the window where the button element and window meet to provide an impression that the window and the button element are integral with one another.

A keyboard switch, including a base; a static contact; a moving contact; an upper cover; a button configured to control the contact of the static contact and the moving contact; and a reset spring configured to control the reset of the button.

A keyboard switch, including a base; a static contact; a moving contact; an upper cover; a button configured to control the contact of the static contact and the moving contact; and a reset spring configured to control the reset of the button.

A switch assembly has a switch unit and a separating cap. The switch unit has a pressing element. The separating cap is attached to the switch unit and encloses the pressing element. Accordingly, glue filled into an object in which the switch assembly is mounted can be kept from attaching to the pressing element and the operation accuracy of the switch unit can be improved.