Patent EA-004946-B1 (EA)
Title: Switch unit
Inventor: PARK HYUNG SIK
IPC: H01H/
Filed: 2001-11-21
Abstract: 1. A switch unit comprising: a main control switch for performing a switching control of loads which is installed in other places and monitoring the switching control state in each one place; and a sub-control switch for performing a switching control of only the loads installed in each one place, wherein said main control switch comprises a local switching unit having a plurality of buttons each corresponding to each load which is installed in a current place, for directly selecting a load to be switching-controlled by pressing one of the plurality of buttons; an overall switching unit fabricated in the form of a dial, for selecting a load to be switching-controlled by turning the dial in left and right directions and then pressing the dial at a selected position, in order to perform a switching control; an overall display unit for displaying the switching control state of each load which is switching-controlled by the overall switching unit; a FND display for displaying representation of the load corresponding to the position of the current dial in the overall switching unit with a numerical figure; an all-off switch which is slightly sunk from the surface of the switch unit, for switching all the toads entirely; and a remote controller signal receiver for receiving a remote controller signal for remote control, wherein said sub-control switch comprises a local switching unit having a plurality of buttons each corresponding to each load which is installed in a current place, for directly selecting a load to be switching-controlled by pressing one of the plurality of buttons; and a remote controller signal receiver for receiving a remote controller signal for remote control, wherein said elements form the external appearance of the switch unit. 2. The switch unit of claim 1, wherein said overall display unit comprises a number of LEDs corresponding to the loads. 3. The switch unit of claim 2, wherein the LEDs on said overall display unit are disposed around the dial of the overall switching unit. 4. The switch unit of claim 2, wherein the LEDs on said overall display unit are disposed in a matrix form. 5. The switch unit of claim 1, wherein said all-off switch functions only if the all-off switch is pressed for a predetermined time continuously. 6. The switch unit of claim 1, wherein said FND display displays the load number corresponding to the position of the current dial in the overall switching unit with a numerical figure, and displays an on-and-off switching state symbolically with an on- or off representation for a predetermined time if the dial is pressed at the state where the load number is displayed. 7. The switch unit of claim 1, wherein said main control switch comprises: a communications unit for performing communications with respect to an on-and-off control and a control state between respective units; an ID setter for setting an inherent ID for each load; a memory device for storing the inherent ID for each load set by the ID setter; a lock switch for performing a locking function so that a switching control and the switching control state of the local load cannot be confirmed in other rooms; and a CPU for entirely controlling the operation of each element. 8. The switch unit of claim 1, wherein said sub-control switch comprises: a communications unit for performing communications with respect to an on-and-off control and a control state between respective units; an ID setter for setting an inherent ID for the local load; a lock switch for performing a locking function so that a switching control and the switching control state of the local load cannot be confirmed in other rooms; a local display unit for displaying the switching state of the local load; and a CPU for entirely controlling the operation of each element. 9. The switch unit of claim 1, wherein said switch unit forms a single switching system via communication connection between a plurality of main control switches and sub-control switches. 10. The switch unit of claim 9, wherein said sub-control switch operates under the control of the main control switch through communications in the same system as that of the main control switch.