Inclined safety switch device and electrical appliance using same
A technology of safety switches and electrical appliances, which is applied in the field of kitchen utensils, can solve the problems of user injury, reduced operational reliability, and inability to guarantee the safety of electrical appliances, and achieve the effect of protecting users
Active Publication Date: 2013-01-02
LIANCHUANG SANJIN ELECTRIC APPLIANCE SHENZHEN
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AI Technical Summary
Problems solved by technology
[0002] Hand-held appliances for processing food in the prior art, such as stirring rods, when consumers dump them to replace the blades, the stirring rods may accidentally start instantly and hurt consumers. In order to ensure the safety of consumers using such handheld appliances, the prior art cuts off the The power supply on it prevents the appliance from starting
The disadvantage of this approach is that although the electrical appliance has fallen over and the power has been cut off on the circuit, the electrical switch can still be pressed down. Therefore, if a small fault occurs in the circuit without actually cutting off the power supply, the switch button may still be pressed down. The electrical appliance is accidentally switched on, causing the user to be injured, and the safety of the electrical appliance cannot be guaranteed
Specifically, the existing technology is that only the switch bracket is installed on the PCB (printed circuit board) in the electrical cavity, and the switch button only passes the ?40mm ball pressure test on the surface. result in reduced operational reliability
Method used
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[0028] Below in conjunction with the preferred embodiment of the present invention shown in the accompanying drawings, it will be further described in detail.
[0029] Referring to Figures 1 to 3, a safety switch device for preventing electric appliances from toppling over and accidentally starting, including a PCB 8 vertically installed in a cavity of an electric appliance 7 working upright, and a push button switch 4 vertically fixed on the PCB 8 , a touch spring 5 is arranged between the bottom of the button 41 of the button switch 4 and the PCB 8; press the button 41 of the switch 4, and the button 41 presses the touch spring 5 to make it contact the charged body on the PCB 8 6, thereby turning on the power supply, and the electrical appliance 7 is started;
[0030] It also includes a steel ball 1 arranged under the switch button 41, and a switch box 2 for allowing the steel ball 1 to roll freely therein; if the electrical appliance 7 falls over, the steel ball 1 roll...
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The invention relates to an inclined safety switch device and an electrical appliance using the same. In the device, a button (41) of a switch (4) is pressed and presses a touch spring (5) so as to contact an electrified body (6) on a printed circuit board (PCB) (8), a power supply is connected, and the electrical appliance (7) is started. The device further comprises a steel ball (1) arranged below the switch button (41) and a switch box (2) enabling the steel ball (1) to roll freely in the switch box. The invention further provides the electrical appliance (7) using the device. If the electrical appliance (7) is inclined, the steel ball (1) rolls to the bottom of the button (41) of the switch (4) instantly and prevents the touch spring (5) from contacting the electrified body (6) on the PCB (8), and a power supply can not be connected. The inclined safety switch device is simple in structure, low in cost and capable of preventing users from being hurt caused by accidental starting of the electrical appliance.
Description
technical field [0001] The present invention relates to kitchen utensils, in particular to hand-held electric appliances for processing food, especially to a safety switch device which can prevent accidental activation of electric appliances due to toppling over, and electric appliances using the same. Background technique [0002] Hand-held appliances for processing food in the prior art, such as stirring rods, when consumers dump them to replace the blades, the stirring rods may accidentally start instantly and hurt consumers. In order to ensure the safety of consumers using such handheld appliances, the prior art cuts off the The power supply on it prevents the appliance from starting. The disadvantage of this approach is that although the electrical appliance has fallen over and the power has been cut off on the circuit, the electrical switch can still be pressed down. Therefore, if a small fault occurs in the circuit without actually cutting off the power supply, th...
Claims
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IPC IPC(8): H01H35/02H01H9/20H01H13/02
Inventor 李晓川
Owner LIANCHUANG SANJIN ELECTRIC APPLIANCE SHENZHEN