阅读说明：本技术 铋基合金作为开关或插座断电元件的方法 (Method for using bismuth-base alloy as switch or socket power-off element ) 是由 易湘云 于 2018-12-21 设计创作，主要内容包括：本发明为一种铋基合金作为开关或插座断电元件的方法,使用于一开关或一插座,该开关或该插座包含用以导通电流的二导电件及一断电元件,利用一铋基合金作为该断电元件,该铋基合金的熔点介于100℃至380℃之间,该断电元件在上述熔点以下的环境中,该二导电件彼此接触而能导通电流,且该断电元件只接受该电流而不作为导通该电流的媒介,在该开关或该插座的工作温度接近或超过上述熔点时,该断电元件丧失刚性,使该二导电件彼此分离,形成断电状态。(The invention is a method for using bismuth-base alloy as the power-off element of the switch or socket, use in a switch or a socket, the switch or the socket includes two conductive pieces and a power-off element used for conducting the electric current, utilize a bismuth-base alloy as the power-off element, the melting point of the bismuth-base alloy is between 100 duC to 380 duC, the power-off element is in the environment below the above-mentioned melting point, the two conductive pieces contact each other and can conduct the electric current, and the power-off element only accepts the electric current but not as the medium to conduct the electric current, when the working temperature of the switch or the socket approaches or exceeds the above-mentioned melting point, the power-off element loses the rigidity, make the two conductive pieces separate each other, form the power-off state.)

1. A method for using bismuth-base alloy as a power-off element of a switch or a socket, which is used for the switch or the socket, the switch or the socket comprises two conductive pieces for conducting current and a power-off element, and is characterized in that: a bismuth-based alloy is used as the power-off element, the melting point of the bismuth-based alloy is between 100 ℃ and 380 ℃, the two conductive pieces are contacted with each other to conduct current in the environment below the melting point of the power-off element, the power-off element only receives the current and does not serve as a medium for conducting the current, and when the working temperature of the switch or the socket approaches or exceeds the melting point, the power-off element loses rigidity, so that the two conductive pieces are separated from each other to form a power-off state.

2. The method of using the bismuth-based alloy of claim 1 as a power-off element for a switch or socket, characterized in that: the two conductive members are separated from each other, and after the power-off state is formed, the power-off element is limited and does not contact the two conductive members simultaneously.

3. The method of using the bismuth-based alloy of claim 1 as a power-off element for a switch or socket, characterized in that: the two conductive members are separated from each other, and after the power-off state is formed, the power-off element is still kept as a whole without being split.

4. The method of using the bismuth-based alloy of claim 1 as a power-off element for a switch or socket, characterized in that: the bismuth-based alloy comprises bismuth and any one of the following metals: cadmium, indium, silver, tin, lead, antimony and copper.

5. The method of using the bismuth-based alloy of claim 1 as a power-off element for a switch or socket, characterized in that: the bismuth-based alloy contains between 50% by mass and 70% by mass of bismuth and between 30% by mass and 50% by mass of tin.

6. The method of using the bismuth-based alloy of claim 5 as a power-off element for a switch or socket, wherein: the bismuth-based alloy also comprises an additive metal, and the additive metal is selected from one of the following metals or any combination thereof: arsenic, calcium, tellurium, mercury.

7. The method of using the bismuth-based alloy of claim 6 as a power-off element for a switch or socket, characterized in that: the weight ratio of the additive metal in the bismuth-based alloy is between 0.01 and 20 percent.

8. The method of using the bismuth-based alloy of claim 1 as a power-off element for a switch or socket, characterized in that: at least one of the two conductive members has or receives an acting force which enables the two conductive members to be relatively far away, but the acting force cannot damage the rigidity of the power-off element below the melting point.

9. The method of using the bismuth-based alloy of claim 1 as a power-off element for a switch or socket, characterized in that: the power-off element limits the two conductive pieces by an external force below the melting point, so that the two conductive pieces can be selectively contacted.

10. The method of using the bismuth-based alloy of claim 9 as a power-off element for a switch or socket, characterized in that: the external force is an elastic force of the spring.

Technical Field

The invention relates to a method for using bismuth-based alloy as a power-off element of a switch or a socket, in particular to a method for using bismuth-based alloy as a power-off element in an electric path of the switch or the socket, wherein the power-off element is different from a fuse, namely the power-off element is not used as a medium for passing current, and the rigidity of the power-off element is destroyed by abnormal heat energy, so that the power-off is realized.

Background

Taiwan patent No. 321352, "improvement of on-line switch structure", discloses a switch structure with a fuse, but the fuse is located in the path of the power line, and needs to rely on the passing of current for protection, especially the over-current can melt the fuse, since the fuse needs to pass the current during operation, but must be melted when the current is too large, so the low melting point lead-tin alloy and zinc are often used as the fuse, and the conductivity is much lower than that of copper. Taking an extension cord socket as an example, the extension cord socket mainly uses copper as a conductor, and if the extension cord socket is combined with the switch of taiwan patent No. 321352 to control the power supply, the conductivity of the fuse is poor, and the problem of energy consumption is easily caused.

Taiwan patent No. 382568, "bipolar automatic power-off safety switch", discloses an overload protection switch in the form of a bimetal, but the bimetal must be located in the path of current passing through, and deformation is required depending on the current passing through, and particularly, an overload current is required to deform the bimetal to interrupt the circuit.

Disclosure of Invention

The invention aims to: provides a method for using bismuth-based alloy as a power-off element of a switch or a socket, and solves the technical problems in the prior art.

The invention provides a method for using bismuth-base alloy as power-off element of switch or socket, which is used in a switch or socket, the switch or socket comprises two conductive pieces for conducting current and a power-off element, a bismuth-base alloy is used as the power-off element, the melting point of the bismuth-base alloy is between 100 ℃ and 380 ℃, the two conductive pieces are contacted with each other to conduct current in the power-off element under the environment below the melting point, and the power-off element only receives the current and does not serve as medium for conducting the current, when the working temperature of the switch or socket is close to or exceeds the melting point, the power-off element loses rigidity, the two conductive pieces are separated from each other, and the power-off state is formed.

The two conductive members are separated from each other, and after the power-off state is formed, the power-off element is limited and cannot contact the two conductive members at the same time.

The two conductive members are separated from each other, and after the power-off state is formed, the power-off element is still kept as a whole without being split.

Further, the bismuth-based alloy comprises bismuth and any one of the following metals: cadmium, indium, silver, tin, lead, antimony and copper. Alternatively, the bismuth-based alloy includes between 50% and 70% bismuth by weight and between 30% and 50% tin by weight. Further, the bismuth-based alloy further comprises an additional metal selected from one or any combination of the following: arsenic, calcium, tellurium and mercury, wherein the weight ratio of the added metal in the bismuth-based alloy is between 0.01 and 20 percent.

Furthermore, at least one of the two conductive members has or receives an acting force, the acting force enables the two conductive members to be relatively far away, but the acting force cannot damage the rigidity of the power-off element below the melting point.

Furthermore, the power-off element limits the two conductive pieces by an external force below the melting point, so that the two conductive pieces can be selectively contacted. The external force is an elastic force of the spring.

According to the technical characteristics, the following effects can be achieved:

1. the power-off element is not a fuse, is not positioned on the current transmission path and is not responsible for transmitting current, so when the power-off element is used in a switch or a socket, the conductivity of the power-off element is not directly influenced by the electric efficiency of the switch or the socket even if the power-off element is not copper.

2. The two conductive members are separated from each other, and after the power-off state is formed, the power-off element is limited to the original position and cannot be simultaneously contacted with the two conductive members, so that the non-insulated power-off element cannot be contacted with the two conductive members again to cause accidental conduction after being damaged by high temperature.

3. The two conductive members are separated from each other, and after the power-off state is formed, the power-off element is still maintained as a whole and is not split, so that the non-insulated power-off element can not be contacted with the two conductive members again to cause accidental conduction after being damaged by high temperature.

4. Bismuth-based alloys have melting points between about 100 c and 380 c, such as when a bismuth tin alloy is used for the current interrupting element, which has a melting point of 138 c, but begins to lose rigidity until it approaches the melting point, and are well suited for sensing overheating of the conductive path.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present invention in which the power-down element is used in a switch, wherein the switch is in a non-conductive state.

FIG. 2 is a diagram of a power-down element for a switch in a first embodiment of the present invention, wherein the switch is in a conducting state.

FIG. 3 is a schematic diagram of a first embodiment of the present invention, wherein the power-down element is used in a switch, and the power-down element is damaged due to overheating to form a non-conductive state.

Fig. 4 is a schematic diagram of a power-off element for an adapter socket according to a second embodiment of the present invention.

FIG. 5 is a schematic view of the hot wire terminal of FIG. 4 in limited contact with the hot wire through the J-shaped cut-off member and the stop member disposed on the outer edge of the J-shaped cut-off member.

Fig. 6 is a schematic view of a second embodiment of the present invention, in which the power-off member is used in an adapter socket, wherein the power-off member is damaged due to overheating, and the damaged portion is blocked by a blocking member.

Description of reference numerals: 1-a seat body; 2-a first conductive member; 3-a second conductive member; 4-a paddle conductive member; 41-silver contacts; 5-a power-off element; 6-operating the components; 61-an operating member; 611-a thermally conductive casing; 62-a first elastic member; 7-a second elastic element.

Detailed Description

In view of the above technical features, the main efficacy of the bismuth-based alloy of the present invention as a method for powering off a switch or a socket will be clearly shown in the following examples.

Referring to fig. 1, a first embodiment of the present invention is shown, in which a rocker switch is taken as an example, and the rocker switch includes: a base body 1, a first conductive piece 2, a second conductive piece 3, a movable conductive piece and a power-off element 5. The first conductive member 2 and the second conductive member 3 are both inserted into the base 1. The movable conductive member is a rocker conductive member 4, and the rocker conductive member 4 straddles the first conductive member 2 and is electrically connected to the first conductive member 2, in this embodiment, the two conductive members defined in the present invention are the second conductive member 3 and the rocker conductive member 4. The material of the current breaking element 5 is bismuth-based alloy, and the melting point of the bismuth-based alloy is between 100 ℃ and 380 ℃, for example, the bismuth-based alloy is bismuth-tin binary alloy, which comprises 50 wt% to 70 wt% of bismuth and 30 wt% to 50 wt% of tin, wherein the melting point of the bismuth-tin binary alloy is about 138 ℃, but the bismuth-tin binary alloy loses rigidity immediately before the melting point is approached, and is very suitable for sensing overheating of a conductive path. Alternatively, the bismuth-based alloy comprises bismuth and any one of the following metals: cadmium, indium, silver, lead, antimony, copper, as long as bismuth and bismuth-based alloy composed of the aforementioned metals have a melting point of 100 ℃ to 380 ℃, are possible embodiments of the present invention. The bismuth-based alloy may further comprise an additional metal selected from one or any combination of the following: arsenic, calcium, tellurium and mercury, and the weight proportion of the added metal in the bismuth-based alloy is between 0.01 and 20 percent, so that different added metals in the bismuth-based alloy can be selected according to different use environments.

When the working temperature is abnormally increased, it is preferable that a break is generated in the live wire, so that the first conductive member 2 is used as a first end of the live wire, the second conductive member 3 is used as a second end of the live wire, and the first conductive member 2 and the second conductive member 3 are conducted by the rocker conductive member 4 to form a live wire path.

The rocker switch of this embodiment further has an operating component 6 for operating the rocker conductive member 4 to connect the first conductive member 2 and the second conductive member 3 to form a live line path, or to disconnect the first conductive member 2 and the second conductive member 3 to break the live line. The operating component 6 is assembled on the base 1, and includes an operating element 61 and a first elastic element 62, the operating element 61 is pivoted to the base 1, so that the operating element 61 can rotate back and forth to a limited extent, the operating element 61 includes a heat-conducting shell 611, the heat-conducting shell 611 contacts the rocker conductive element 4, the power-off element 5 is disposed in the heat-conducting shell 611, one end of the first elastic element 62 abuts against the operating element 61, the other end abuts against the power-off element 5, the power-off element 5 has rigidity, so that the first elastic element 62 is compressed to have a first elastic force, and the first elastic force is used as an external force to control the rocker conductive element 4 to contact the second conductive element 3 to form a passage, or to control the rocker conductive element 4 not to contact the second conductive element 3 to form a break.

The rocker switch further has a second elastic member 7, the second elastic member 7 is a spring in this embodiment, the second elastic member 7 has a second elastic force, the second elastic force acts on the operating member 61 as an acting force, and when the elastic force is reduced, the second conductive member 3 can receive the acting force, so that the rocker conductive member 4 and the second conductive member 3 can be relatively far away from each other. The second conductive member 3 can receive the acting force, that is, at least one conductive member of the present invention receives an acting force.

Referring to fig. 2, a user operates the operating element 61 to slide the heat conducting shell 611 on the rocker conductive member 4, so as to drive the rocker conductive member 4 to selectively contact or separate from the second conductive member 3 in a rocker motion manner. When the heat conducting shell 611 slides on the paddle conductor 4 toward a silver contact 41 on the paddle conductor 4, the aforementioned external force will force the silver contact 41 to contact the second conductor 3 to form a conducting state.

Referring to fig. 3, when an external conductive device connected to the first conductive member 2 or the second conductive member 3 generates heat energy due to an abnormal condition, the heat energy is transmitted to the rocker conductive member 4 through the first conductive member 2 or the second conductive member 3, and then transmitted to the power-off element 5 through the heat-conducting shell member 611, the power-off element 5 absorbs the heat energy and gradually loses rigidity, for example, the power-off element 5 is made of bismuth-tin alloy, although the melting point of the bismuth-tin alloy is 138 ℃, but loses rigidity approximately before the melting point, so that under the action of the external force, the power-off element 5 is pressed and deformed by the first elastic member 62, the first elastic member 62 extends into the softened power-off element 5, the first elastic member 62 extends, the external force is reduced or lost, and the acting force of the second elastic member 7 is greater than the external force, and drives the heat-conducting shell member 611 to slide on the rocker conductive member 4, silver contact 41 of rocker conductive member 4 is forced to disengage from second conductive member 3 to form a power-off state, thereby achieving the overheat protection function. In the present embodiment, the current interruption component 5, which loses rigidity due to receiving abnormal heat energy, is still confined in the heat conduction shell 611 after deformation, and does not contact the second conductive member 3 and the paddle conductive member 4 at the same time. It should be noted that, unlike the breaking point means of the fuse, the power-off device 5 of the present invention does not transfer current, and therefore, even if the power-off device 5 is not as conductive as copper, the electrical performance of the path is not directly affected. In addition, as shown in fig. 3, the power cutoff element 5 of the present embodiment is a non-insulator, and when the power cutoff element 5 is damaged and deformed or after being deformed, the power cutoff element is confined in the heat conductive shell 611, and will not overflow or scatter to connect the rocker conductive member 4 and the second conductive member 3 again, so that the rocker switch accidentally turns on the power supply in the off state. In the power-off protection process, the power-off element 5 is damaged due to the increase of the working temperature, the power supply is interrupted immediately, and once the power supply is interrupted, the working temperature is also reduced, so that the power-off element 5 is cooled and maintained in a deformed state.

Referring to fig. 4 and 5, a second embodiment of the present invention is shown, in which an adapter socket is taken as an example, and includes:

an insulating body 1C having a live wire jack 11C and a neutral wire jack 12C. A fire wire terminal 2C installed in the insulating body 1C and corresponding to the fire wire insertion hole 11C, the fire wire terminal 2C having a terminal extension 21C. A zero line terminal 3C installed in the insulation body 1C and corresponding to the zero line jack 12C. A live wire 4C and a zero line 5C, correspond respectively to this live wire terminal 2C and this zero line terminal 3C, and have a live wire shell fragment 41C on this live wire 4C, this live wire shell fragment 41C has an elastic effort, and this effort makes live wire shell fragment 41C have the trend of keeping away from this terminal extension 21C. A power-off element 6C, which is substantially in a J shape, in this embodiment, the power-off element 6C uses a binary alloy of bismuth and tin, the terminal extension portion 21C of the live wire terminal 2C and the live wire elastic piece 41C of the live wire 4C are clamped by the power-off element 6C from the end portion, by means of the rigid limitation of the power-off element 6C, the live wire terminal 2C and the live wire 4C can contact each other to form a passage, and the null wire terminal 3C and the null wire 5C can be connected and fixed by welding or other fixing methods to form a passage. A stopper 7C located at the outer edge of the power cutoff member 6C. In this embodiment, the two conductive members defined in the present invention are the live wire spring 41C and the terminal extension portion 21C, wherein the elastic acting force of the live wire spring 41C is that at least one conductive member defined in the present invention has an acting force.

Referring to fig. 6, when the passage is overheated, the power-off element 6C gradually loses rigidity, and the acting force forces the power-off element 6C to deform into a shape similar to an L in the process of gradually losing rigidity, so that the limitation on the live wire spring 41C is lost, and the terminal extension 21C of the live wire terminal 2C and the live wire spring 41C of the live wire 4C are opened to form an open circuit due to the acting force, thereby achieving the overheating protection effect. Wherein, when the power-off element 6C is damaged, the stopper 7C can restrain the power-off element 6C to prevent the power-off element 6C from bouncing and bouncing off due to the above-mentioned acting force. Similarly, in this embodiment, the power-off device 6C is not responsible for passing current, so even if the power-off device 6C is not as conductive as copper, it will not directly affect the electrical performance of the via. In addition, as shown in fig. 6, the power-off element 6C of the present embodiment is a non-insulator, when the power-off element 6C is damaged and deformed or after being deformed, the power-off element 6C remains as a whole without being separated, and the blocked member 7C and the terminal extension portion 21C are both limited to the original position, and will not scatter to connect the terminal extension portion 21C and the live wire spring 41C again, so that the socket is accidentally powered on in the power-off state. In the power-off protection process, the power-off element 6C is destroyed by the rise of the operating temperature, the power supply is interrupted immediately, and once the power supply is interrupted, the operating temperature also drops, so that the power-off element 6C is cooled and maintained in the deformed state.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.