CN104835680A - Electronic switch - Google Patents

Abstract

The present invention relates to a safe electrical device for household appliances, and in particular to an electronic switch, comprising a metal shell (1) with a nickel-plated surface, an upper metal bowl (2) and a lower metal bowl (3), wherein the upper metal bowl (2) and the lower metal bowl (3) overlap each other and are placed in the metal shell (1), an inner rubber plug (6) is provided between the upper metal bowl (2) and the lower metal bowl (3), an outer rubber plug (9) is provided below the lower metal bowl (3), and metal balls (4) are provided in both the upper metal bowl (2) and the lower metal bowl (3), the surface of the metal shell (1) is nickel-plated, and the inner wall of the upper metal bowl (2) and the inner wall of the lower metal bowl (3) are both silver-plated. The present invention utilizes metal balls to achieve circuit connectivity, and utilizes the instability of their positions to greatly improve the sensitivity of the entire electronic switch; and the structure is simple, the production cost is low, and the advantages of low cost and high sensitivity are taken into account.

Description

an electronic switch

technical field

The invention relates to a safe electrical device for household appliances, in particular to an electronic switch.

Background technique

There are many types of electronic switches. Some household appliances, such as heaters, heaters, electric fans, air-conditioning fans, air purifiers, electric irons, and humidifiers, use a switch that will disconnect the circuit if it is tilted or fallen. At present, most of the switches with this function used in such products are composed of shrapnel and pendulum plus some electrical contacts. This type of switch has some obvious disadvantages, such as large size, high cost, and the tilting action angle is different from that of The accuracy of the recovery action angle is low, and the response is not sensitive enough.

At present, there is another electronic switch on the market, which also has this function. This switch is composed of an infrared transmitter and an infrared receiver inside, and a rolling ball in the middle. A position that cannot block the infrared transmitter and receiver, the circuit is in the open state, and the electrical appliances work normally. When the appliance tilts or falls down, the rolling ball rolls to the middle of the infrared transmitter and receiver, and the circuit is disconnected. However, this type of electronic switch has a complex structure, high cost, and difficult production. The accuracy of the tilting action angle and the recovery action angle requires high production technology and technology to ensure.

Contents of the invention

The purpose of the present invention is to provide an electronic switch to solve the problem that the current switch device that can cut off the power after the appliance tilts and falls is too low in precision and large in size, and the production cost will be greatly increased by using parts with high sensitivity. question.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

An electronic switch, comprising a nickel-plated metal shell, an upper metal bowl and a lower metal bowl, the upper metal bowl and the lower metal bowl are placed in the metal shell after overlapping each other, and there is a gap between the upper metal bowl and the lower metal bowl The inner rubber plug is separated, the lower metal bowl is provided with an outer rubber plug, the upper metal bowl and the lower metal bowl are equipped with metal balls, the surface of the metal shell is nickel-plated, the inner wall of the upper metal bowl and the lower metal bowl The inner wall of the metal bowl is silver-plated; the bottoms of the upper metal bowl and the lower metal bowl are open, and there are metal wire rods running through the upper metal bowl and the lower metal bowl up and down. The metal balls are in contact, and the middle part of the metal lead rod is in contact with the metal ball in the lower metal bowl. The inner wall of the lower metal bowl is connected by a wire to form an electrode side terminal, and the bottom of the metal lead rod extends out of the bottom of the lower metal bowl. A bottom electrode terminal is formed.

In a further technical solution, there are two metal balls arranged in the upper metal bowl and the lower metal bowl, and the outer wall is plated with silver.

In a further technical solution, the top end of the metal lead rod is conical, and is in contact with the metal ball in the upper metal bowl.

Compared with the prior art, the beneficial effect of the present invention is: the present invention uses the metal ball to realize the connection of the circuit, utilizes the instability of its position to greatly improve the sensitivity of the entire electronic switch; and the structure is simple, the production cost is low, Taking into account the advantages of low cost and high sensitivity.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of an electronic switch of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Fig. 1 shows an embodiment of a kind of electronic switch of the present invention: a kind of electronic switch, comprises the metal shell 1 of surface nickel plating, upper layer metal bowl 2 and lower layer metal bowl 3, described upper layer metal bowl 2 and lower layer metal bowl 3 are placed in the metal shell 1 after being overlapped with each other. There is an inner rubber plug 6 between the upper metal bowl 2 and the lower metal bowl 3. An outer rubber plug 9 is provided below the lower metal bowl 3. The upper metal bowl 3 Both the bowl 2 and the lower metal bowl 3 are provided with metal balls 4, the surface of the metal shell 1 is nickel-plated, and the inner walls of the upper metal bowl 2 and the lower metal bowl 3 are all silver-plated; the upper metal bowl 2 and the lower metal The bottom of bowl 3 is all open, and has metal wire rod 5 to run through upper layer metal bowl 2 and lower layer metal bowl 3 up and down, and the top of described metal wire rod 5 is in contact with metal ball 4 in upper layer metal bowl 2, and metal wire rod 5 The middle part of the lower metal bowl 3 is in contact with the metal ball 4, the inner wall of the lower metal bowl 3 is connected by a wire to form an electrode side terminal 7, and the bottom of the metal lead rod 5 extends out of the bottom of the lower metal bowl 3 to form the bottom Electrode terminal 8.

According to a preferred embodiment of the electronic switch of the present invention, there are two metal balls 4 arranged in the upper metal bowl 2 and the lower metal bowl 3, and the outer walls are plated with silver. Two metal balls 4 can effectively ensure that the metal lead rod 5 is in a vertically balanced state,

The top end of the metal lead rod 5 is conical, and is in contact with the metal ball 4 in the upper metal bowl 2 .

There are two metal balls 4 arranged in the upper metal bowl 2 and the lower metal bowl 3 as an example, and the working principle of the present invention is:

When the electric appliance is upright, the metal balls 4 in the upper metal bowl 2 and the lower metal bowl 3 are placed at the bottom, and the two metal balls 4 in the upper metal bowl 2, the two metal balls 4 and the cone on the top of the metal wire rod 5 Contact, the metal ball 4 in the lower metal bowl 3 contacts with the middle part of the metal lead rod 5, the bottom electrode terminal 8 formed on the bottom of the metal lead rod 5 and the electrode side terminal 7 form a loop, and the circuit is connected, and the electrical appliance works normally; When the electrical appliance tilts or falls down, the metal ball 4 in the upper metal bowl 2 and the lower metal bowl 3 rolls away and loses contact with the cone and the middle part of the top of the metal lead rod 5, and the circuit formed by the electrode terminal 8 and the electrode side terminal 7 is broken. Open, the circuit cannot be connected, and the electrical appliance stops working.

Claims (3)

1. An electronic switch, characterized in that: it includes a nickel-plated metal shell (1), an upper metal bowl (2) and a lower metal bowl (3), and the upper metal bowl (2) and the lower metal bowl (3) ) are placed in the metal shell (1) after being overlapped with each other, and there is an inner rubber plug (6) between the upper metal bowl (2) and the lower metal bowl (3). There is an outer rubber plug (9), the upper metal bowl (2) and the lower metal bowl (3) are equipped with metal balls (4), the surface of the metal shell (1) is nickel-plated, and the upper metal bowl (2) The inner wall of the metal bowl (3) of the upper layer and the inner wall of the lower metal bowl (3) are all silver-plated; the bottoms of the upper metal bowl (2) and the lower metal bowl (3) are open, and there are metal wire rods (5) running through the upper metal bowl (2) up and down ) and the lower metal bowl (3), the top of the metal wire rod (5) is in contact with the metal ball (4) in the upper metal bowl (2), and the middle part of the metal wire rod (5) is in contact with the lower metal bowl (3) ) in contact with the metal ball (4), the inner wall of the lower metal bowl (3) is connected by a wire to form an electrode side terminal (7), and the bottom of the metal lead rod (5) extends out of the lower metal bowl (3) The bottom of the form the bottom electrode terminal (8). 2. An electronic switch according to claim 1, characterized in that: there are two metal balls (4) set in the upper metal bowl (2) and the lower metal bowl (3), and the outer wall is silver-plated . 3. An electronic switch according to claim 1, characterized in that: the top end of the metal lead rod (5) is conical, and is in contact with the metal ball (4) in the upper metal bowl (2).