LATCH MODULE AND AN APPLIANCE USING THE SAME
First Claim
1. A latch module for opening and closing a door of an appliance, comprising:
- a latch;
a spring that applies an elastic force to the latch;
a drive that provides power to move the latch;
a cam that transmits the power of the drive to the latch, the cam including a switch pressing profile; and
a first switch and a second switch that are turned on or off by the switch pressing profile of the cam,wherein the spring and the cam move the latch in a first basic position, a second basic position in which the latch is moved in a second direction from the first basic position, and a third basic position in which the latch is moved in a first direction from the first basic position, andthe switch pressing profile comprises a first pressing protrusion that presses the first switch or the second switch depending on a rotational position thereof, and a second pressing protrusion that presses the first switch or the second switch depending on a rotational position thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
A latch module incorporated with an automatic opening function and a secure lock function includes a latch, a spring that applies a force to move the latch in a first direction, a drive to move the latch in a second direction, a cam that transmits power of the drive to the latch, and first and second switches that are turned on and off by the cam. The first and second switches are in a first mode in which the two switches are turned on and the latch is disposed at a manual lock position, a second mode in which the first switch is turned on and the second switch is turned off and the latch is disposed at an opening position, a third mode in which the first switch is turned off and the second switch is turned on and the latch is in a secure lock position.
3 Citations
20 Claims
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1. A latch module for opening and closing a door of an appliance, comprising:
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a latch; a spring that applies an elastic force to the latch; a drive that provides power to move the latch; a cam that transmits the power of the drive to the latch, the cam including a switch pressing profile; and a first switch and a second switch that are turned on or off by the switch pressing profile of the cam, wherein the spring and the cam move the latch in a first basic position, a second basic position in which the latch is moved in a second direction from the first basic position, and a third basic position in which the latch is moved in a first direction from the first basic position, and the switch pressing profile comprises a first pressing protrusion that presses the first switch or the second switch depending on a rotational position thereof, and a second pressing protrusion that presses the first switch or the second switch depending on a rotational position thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An appliance comprising:
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a main body that has a cavity; a door that opens and closes an open front of the cavity, a latch module comprising; a latch; a drive that provides power to move the latch; a cam that transmits the power of the drive to the latch; and a first switch and a second switch that are turned on or off by a switch pressing profile of the cam; and
a controller configured to control the drive, the controller to rotate the switch pressing profile of the cam such thatin a first mode, the two switches are turned on, in a second mode, the first switch is turned on and the second switch is turned off, in a third mode, the first switch is turned off and the second switch is turned on. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification