TWI682414B - Method for removing power from overheated rocker switch or electrical equipment using shape memory alloy - Google Patents

Abstract

Embodiments disclose a method for removing power from an overheated rocker switch or electrical equipment using a shape memory alloy. The method includes applying a first torque on a movable conductive member to enable the movable conductive member to connect a first conductive member and a second conductive member to form a current passage; and when a working temperature is higher than a memory temperature of a shape memory alloy, exerting by the shape memory alloy an acting force on the movable conductive member, in order to apply a second torque on the movable conductive member and for the movable conductive member to recede from the second conductive member, where the second torque is greater than the first torque and acts in an opposite direction. Thereby current flow between the first conductive member and the second conductive member is interrupted.

Description

Method for using memory alloy to overheat and cut off rocker switch or electrical equipment

The invention relates to a method for overheating and power-off of a switch or an electric device, in particular to a method for overheating and power-off of a rocker switch or an electric device by using a memory alloy.

The conventional rocker switch is to control the switch to reciprocate pivoting at a certain angle to control the path and disconnection of the switch. For example, the Republic of China Patent No. 560690 "Sparking Structure of the Switch" is used when the switch pivots. The positioning feature positions it in a first position or a second position to form a passage or an open circuit.

Republic of China Patent No. 321352 "Online Switch Structure Improvement" discloses a switch structure with a fuse, but the fuse is located in the path of the power line, and it needs to rely on the passage of current to have a protective effect, especially the overload current can have the opportunity to melt When the fuse is broken, since the fuse needs to pass current when it is working, but it must be blown when the current is too large, it is often used low-melting lead-tin alloy, zinc as a fuse, its conductivity is far less than copper. Take the extension cord socket as an example. The extension cord socket mainly uses copper as a conductor. If the extension cord socket is combined with the switch of the Republic of China Patent No. 321352 to control the power supply, the conductivity of the fuse is not good, and there is a problem of energy consumption.

In the Republic of China Patent No. M382568 "Bipolar Automatic Power-off Safety Switch", a bimetallic overload protection switch is disclosed, but the bimetallic sheet must also be located in the path through which current passes In the path, it needs to rely on the current to produce deformation, especially the overload current to deform the bimetal and interrupt the circuit.

Republic of China Patent No. M250403 "Overload Protection Switch Structure for Group Sockets" discloses that overload protection switches are applied to extension cord sockets. The overload protection switch in the previous case of this patent is equipped with bimetallic strips. When the power exceeds, the bimetallic sheet will automatically trip due to heat deformation to achieve the function of power-off protection. However, the bimetallic sheet must rely on the passage of current to have an overload protection effect. The bimetallic sheet is not as conductive as copper, so it is also prone to energy consumption problems.

Based on the above reasons, in order to overcome this deficiency, the present invention proposes a method of using a memory alloy to overheat and power off the rocker switch, which includes the following steps: making a movable conductive member take a first conductive member as a fulcrum to form a rocker shape ; A first elastic force is applied to a first side of the movable conductive member relative to the fulcrum to apply a first moment to the movable conductive member; a memory alloy is provided, which can be at a memory temperature Changing the shape, when the working temperature is lower than the memory temperature, the memory alloy has a first shape, when the working temperature is higher than the memory temperature, the memory alloy has a second shape; when the working temperature is lower than the At the memory temperature, the first torque causes the movable conductive member to conduct the first conductive member and a second conductive member to form a path state; when the working temperature is higher than the memory temperature, the memory alloy is formed by the first shape Transformed into a second shape, the second shape provides a force acting on the movable conductive member to apply a second moment to the movable conductive member opposite to the first moment, the second moment is greater than the At the first moment, the movable conductive member leaves the second conductive member by means of the second torque, so that the first conductive member and the second conductive member form an open state.

The invention is also a method for overheating and power-off of electric equipment, which uses the method of using memory alloy to overheat and power off the rocker switch as described above to control the power-on and power-off of an electric equipment The source is turned off, so that the first conductive element and the second conductive element are bridged on a live line power path or a neutral line power path of the electrical equipment.

Further, in the disconnected state, the first elastic force can be applied to a second side of the movable conductive member opposite to the fulcrum, so as to apply a power-off moment reverse to the first moment to the movable conductive member .

Further, the memory temperature may be between 80°C and 300°C.

Further, the first elastic force can be generated by a spring, a leaf spring, or rubber.

Further, wherein the acting force is a second elastic force, an operating member can be pivoted to an open position or a closed position with a pivot point to change the position of the first elastic force exerted on the movable conductive member , When the operating member is in the open position, the first elastic force exerts the aforementioned first moment on the movable conductive member, and when the operating member is in the closed position, the operating member applies the first elastic force to the A second side of the movable conductive member opposite to the fulcrum to apply a power-off moment to the movable conductive member opposite to the first moment; a third elastic force is applied to the operating member to treat the operating member A closing torque is applied; when the working temperature is higher than the memory temperature, the operating member pivots to the closed position by means of the closing torque.

Further, the third elastic force can be generated by a spring, a leaf spring, or rubber.

According to the above technical features, the following effects can be achieved:

1. When the working temperature is higher than the memory temperature of the memory alloy, the memory alloy will exert a force on the movable conductive member, so that the movable conductive member can leave the second conductive member, so that the switch automatically becomes an open circuit state.

2. When the operating temperature is lower than the memory temperature, you can switch the operating member to the open position or the closed position at any time to make the movable conductive member turn on or off the first conductive member and the second conductive member Parts, the rocker switch that automatically shuts off when overheating can resume normal switching when it returns to normal operating temperature.

3. The memory alloy is not located in the current transmission path and is not responsible for transmitting current. Therefore, when the present invention is used in electrical products or extension cord sockets, even if the conductivity of the memory alloy is not as good as copper, it will not directly affect the electrical appliances or extension cord sockets Power efficiency.

4. After the thermal switch is powered off, the rocker switch provides the closing torque of the operating member through the third elastic force, which can assist the operating member to pivot to the closed position quickly and surely.

(1A)(1B)(1C)(1D)(1E)(1F)(1G)‧‧‧‧Body

(10B)(10D)(10E)‧‧‧‧The second convex part

(11A)‧‧‧accommodating space

(12A)‧‧‧accommodation slot

(13G)‧‧‧Bottom

(131G) ‧‧‧ Hollow hole

(132G)‧‧‧Part

(2A)(2B)(2C)(2D)(2E)(2F)(2G)‧‧‧The first conductive part

(3A)(3B)(3C)(3D)(3E)(3F)(3G)‧‧‧‧Second conductive part

(31A)(411A)(31D)(411D)(31E)(411E)(31F)(411F)(31G)(411G)‧‧‧‧Silver contact

(4A)(4B)(4C)(4D)(4E)(4F)(4G)

(41A)(41B)(41C)(41D)(41E)(41F)(41G)‧‧‧‧

(412C)‧‧‧First connection part

(42A)(42B)(42C)(42D)(42E)(42F)(42G)‧‧‧Second side

(421D)‧‧‧Notch

(43E)‧‧‧Extension

(44F)‧‧‧fitting department

(6A)(6B)(6C)(6D)(6E)(6F)(6G)‧‧‧‧

(61A)(61B)(61C)(61D)(61E)(61F)(61G)‧‧‧

(610A)(610C)(610D)(610E)(610F)(610G)‧‧‧ pivot point

(611A)‧‧‧Accommodation Department

(612A)(612B)(612C)(612D)(612E)(612F)(612G)‧‧‧Contacts

(62A)(62B)(62C)(62D)(62E)(62F)(62G)‧‧‧‧Elastic piece

(63B)(63D)(63E)‧‧‧First convex

(64C)‧‧‧Second connection part

(7A)(7B)(7C)(7D)(7E)(7F)(7G)‧‧‧Memory alloy

(71C)‧‧‧Hook

(72D)‧‧‧Extended arm

(71G)‧‧‧First Extension

(72G)‧‧‧Second Extension

(721G)

(73G) ‧‧‧ Hollow part

(8B)(8G)‧‧‧Second elastic piece

[The first figure] is a schematic diagram of the first embodiment of the present invention, illustrating a rocker switch structure and the rocker switch is in a closed position.

[Second figure] is a schematic diagram of the first embodiment of the present invention, illustrating the three-dimensional appearance of the rocker switch.

[The third figure] is a schematic diagram of the first embodiment of the present invention, showing that the rocker switch is in an open position.

[Fourth figure] is a schematic diagram of the first embodiment of the present invention, illustrating that when the rocker switch is overheated, the movable conductive member is separated from the second conductive member, so that the rocker switch is broken.

[Fourth A] is a schematic diagram of the first embodiment of the present invention, showing that when the rocker switch overheats, the movable conductive member is separated from the second conductive member, so that the rocker switch returns from the open position to the closed position to form an open circuit .

[Fifth figure] is a schematic diagram of a second embodiment of the present invention, illustrating a rocker switch structure and the rocker switch is in a closed position.

[Sixth figure] is a schematic diagram of a second embodiment of the present invention, showing that the rocker switch is in an open position.

[Seventh figure] is a schematic diagram of a second embodiment of the present invention, illustrating that when the rocker switch overheats, the movable conductive member is separated from the second conductive member, causing the rocker switch to return from the open position to the closed position to form an open circuit .

[Figure 8] is a schematic diagram of a third embodiment of the present invention, illustrating a rocker switch structure and the rocker switch is in a closed position.

[The ninth figure] is a schematic diagram of a third embodiment of the present invention, illustrating a three-dimensional appearance of a movable conductive member.

[Tenth figure] is a schematic diagram of a third embodiment of the present invention, showing that the rocker switch is in an open position.

[Eleventh Figure] is a schematic diagram of a third embodiment of the present invention, illustrating that when the rocker switch overheats, the movable conductive member is separated from the second conductive member, so that the rocker switch returns from the open position to the closed position.

[Figure 12] is a schematic diagram of a fourth embodiment of the present invention, illustrating a rocker switch structure and the rocker switch in a closed position.

[Twelfth A] is a schematic diagram of a fourth embodiment of the present invention, illustrating a three-dimensional appearance of a movable conductive member.

[Figure 13] is a schematic diagram of a fourth embodiment of the present invention, showing that the rocker switch is in an open position.

[Figure 14] is a schematic diagram of a fourth embodiment of the present invention, showing that when the rocker switch overheats, the movable conductive member is separated from the second conductive member, so that the rocker switch returns from the open position to the closed position.

[Figure 15] is a schematic diagram of a fifth embodiment of the present invention, illustrating a rocker switch structure and the rocker switch is in a closed position.

[Figure 16] is a schematic diagram of a fifth embodiment of the present invention, illustrating the three-dimensional appearance of a movable conductive member and the appearance of a second convex portion.

[Figure 17] is a schematic diagram of a fifth embodiment of the present invention, showing that the rocker switch is in an open position.

[Figure 18] is a schematic diagram of a fifth embodiment of the present invention, illustrating that when the rocker switch overheats, the movable conductive member is separated from the second conductive member, so that the rocker switch returns from the open position to the closed position.

[Figure 19] is a schematic diagram of a sixth embodiment of the present invention, illustrating a rocker switch structure and the rocker switch is in a closed position.

[Figure 20] is a schematic diagram of a sixth embodiment of the present invention, illustrating a three-dimensional appearance of a movable conductive member.

[Figure 21] is a schematic diagram of a sixth embodiment of the present invention, showing that the rocker switch is in an open position.

[Figure 22] is a schematic diagram of a sixth embodiment of the present invention, illustrating that when the rocker switch overheats, the movable conductive member is separated from the second conductive member, so that the rocker switch returns from the open position to the closed position.

[Figure 23] is a schematic diagram of a seventh embodiment of the present invention, illustrating a rocker switch structure and the rocker switch is in a closed position.

[Figure 24A] is a schematic diagram of a seventh embodiment of the present invention, illustrating the three-dimensional appearance of a memory alloy.

[Figure 24B] is a schematic diagram of a seventh embodiment of the present invention, illustrating another perspective perspective appearance of the memory alloy.

[Figure 25] is a schematic diagram of a seventh embodiment of the invention, illustrating the appearance of the rocker switch.

[Figure 26] is a schematic diagram of a seventh embodiment of the present invention, showing that the rocker switch is in an open position.

[Figure 27] is a schematic diagram of a seventh embodiment of the present invention, illustrating that when the rocker switch overheats, the movable conductive member is separated from the second conductive member, so that the rocker switch returns from the open position to the closed position.

In view of the above technical features, the main effect of the method of using a memory alloy to overheat and power off a rocker switch or an electric device in the present invention will be clearly shown in the following embodiments.

In the cross-sectional views presented in the embodiments described later, the related operating states and torques are explained in advance as follows: Rocker switch operating parts (61A) (61B) (61C) (61D) (61E) (61F) (61G) It can be switched to an open position and a closed position.

The moment of power off refers to the operating element (61A) (61B) (61C) (61D) (61E) (61F) (61G) in the closed position, the first elastic force acts on the movable conductive member (4A) (4B) (4C )(4D)(4E)(4F)(4G), so that the movable conductive member (4A)(4B)(4C)(4D)(4E)(4F)(4G) has the first conductive member (2A)( 2B)(2C)(2D)(2E)(2F)(2G) The fulcrum produces a torque that tends to rotate clockwise.

The first moment refers to the operating member (61A) (61B) (61C) (61D) (61E) (61F) (61G) when in the open position, the first elastic force acts on the movable conductive member (4A) (4B) (4C )(4D)(4E)(4F)(4G), so that the movable conductive member (4A)(4B)(4C)(4D)(4E)(4F)(4G) has the first conductive member (2A)( The pivot point of 2B)(2C)(2D)(2E)(2F)(2G) produces a torque that tends to rotate counterclockwise.

The second moment means that the second elastic force acts on the movable conductive member (4A) (4B) (4C) (4D) (4E) (4F) (4G), so that the movable conductive member (4A) (4B) (4C) ( 4D) (4E) (4F) (4G) has a moment that tends to rotate clockwise around the pivot point of the first conductive member (2A) (2B) (2C) (2D) (2E) (2F) (2G).

The closing torque refers to the third elastic force acting on the operating member (61A) (61B) (61C) (61D) (61E) (61F) (61G), so that the operating member (61A) (61B) (61C) (61D) ( 61E) (61F) (61G) has a moment that tends to rotate counterclockwise around the pivot point (610A) (610C) (610D) (610E) (610F) (610G).

Please refer to the first and second figures to reveal the rocker switch according to the first embodiment of the present invention, and the first figure shows the rocker switch in the off state. The rocker switch includes a base (1A) and a receiving space (11A).

A first conductive member (2A) and a second conductive member (3A) are both passed through the base (1A).

A movable conductive member (4A) is disposed in the accommodating space (11A), the movable conductive member (4A) straddles the first conductive member (2A), so that the movable conductive member (4A) conducts with the first The piece (2A) serves as a fulcrum, forming a rocker pattern. The movable conductive member (4A) has a first side (41A) and a second side (42A) located on opposite sides of the fulcrum.

When the working temperature rises abnormally, it is best to open the live wire, so the first conductive member (2A) is used as the first end of the live wire, and the second conductive member (3A) is used as the second end of the live wire, and It can be bridged to a live line power path of an electric device, and the first conductive element (4A) can be used to connect the first The conductive member (2A) and the second conductive member (3A) form a fire path. But not limited to this, it can also be bridged on a neutral power supply path.

The rocker switch of this embodiment further has an operating component (6A) for operating the movable conductive member (4A) to connect the first conductive member (2A) and the second conductive member (3A) to form a live wire path, or Disconnect the path between the first conductive member (2A) and the second conductive member (3A), so that the live wire is disconnected. The operation component (6A) is assembled on the base (1A). The operation component (6A) includes an operation component (61A) and a first elastic component (62A). The operation component (61A) is provided with a pivot point (610A), the pivot point (610A) is pivotally connected to the seat body (1A), so that the operating member (61A) can use the pivot point (610A) as an axis to rotate back and forth to an open limit Position or a closed position, the operating member (61A) further includes a receiving tube portion (611A) and a contact member (612A), the receiving tube portion (611A) is used for the first elastic member (62A) In this way, the first elastic member (62A) can be compressed and restricted between the contact member (612A) and the inside of the accommodating tube portion (611A) to generate a first elastic force. In this embodiment, the first elastic member (62A) uses a spring, but it may also be a spring or rubber.

The rocker switch of this embodiment further has a memory alloy (7A). In this embodiment, the memory alloy (7A) adopts a spring type, but it can also be a reed type, etc., the memory alloy (7A) can produce a The acting force acts on the movable conductive member (4A). Here, the memory alloy (7A) has a spring shape, so the acting force can be defined as a second elastic force. In detail, the seat body (1A) has an accommodating groove (12A) at the accommodating space (11A) for the memory alloy (7A) to be set, the accommodating groove (12A) and the memory alloy ( 7A) may be located between the first conductive member (2A) and the second conductive member (3A), and the memory alloy (7A) protrudes from the accommodating groove (12A) at one end, and corresponds to the movable conductive member (7A) 4A). The memory alloy (7A) can change shape at a memory temperature (for example, any specific temperature or temperature range between 80°C and 300°C), When the operating temperature is lower than the memory temperature, the memory alloy (7A) has a first shape, such as a first length dimension (L1), under which the memory alloy (7A) will be under pressure Naturally shortened.

In the first figure, the rocker switch is in a closed state, and the operating member (61A) is in the closed position. The first elastic force of the first conductive member (2A) is applied to a second side (42A) of the movable conductive member (4A) opposite to the fulcrum to apply a power-off to the movable conductive member (4A) Torque, the movable conductive member (4A) is located away from the second conductive member (3A) by the breaking torque, so that the first conductive member (2A) and the second conductive member (3A) form an open state .

Continue to refer to the third figure, the operating member (61A) is switched to the open position, and by operating the operating member (61A) to rotate around the pivot point (610A), the contact member (612A) is moved in the movement Sliding on the conductive member (4A), from the second side (42A) of the movable conductive member (4A) to the first side (41A), driving the movable conductive member (4A) to move in a rocker mode The second conductive member (3A) is selectively contacted, and the movable conductive member (4A) and the second conductive member (3A) can both be in contact with a silver contact (31A) (411A) to reduce the impedance, Reduce temperature rise. When the contact member (612A) slides to the first side (41A), the first elastic force of the first elastic member (62A) applies a first moment to the movable conductive member (4A). The second elastic force of the memory alloy (7A) can act on the movable conductive member (4A), and a second moment opposite to the first moment is applied to the movable conductive member (4A). At this time, the first A moment is greater than the second moment, so that the movable conductive member (4A) conducts the first conductive member (2A) and the second conductive member (3A) to form a via state. However, it should be noted that the second torque is not a requirement at this time, and only the first torque may be applied.

Please continue to refer to the third and fourth figures. When the external conductive device connected to the first conductive member (2A) or the second conductive member (3A) has an abnormal state, for example, the external conductive device is a socket, then the metal of the plug There are oxides, dust, incomplete insertion of metal pins, deformation of metal pins, etc. between the pins and the socket, which will cause abnormal heat energy in the conductive parts of the socket, which will pass through the first conductive member (2A) Or the second conductive member (3A) is transferred to the movable conductive member (4A) and the memory alloy (7A), the memory alloy (7A) absorbs the heat energy, and the working temperature is raised above the memory temperature (e.g. At any specific temperature or temperature range between 80°C and 300°C), the memory alloy (7A) will transform into a second shape, such as having a second length dimension (L2), and provide a force on the The movable conductive member (4A) applies a second torque opposite to the first torque to the movable conductive member (4A), and the second torque is greater than the first torque. In this state, the second shape of the memory alloy (7A) has a shorter second dimension (L2) compared to the fourth diagram A, as shown in the fourth diagram, but the second torque is still sufficient to lift the The movable conductive member (4A) separates the silver contacts (31A) (411A) from each other to form an open circuit state to achieve the purpose of overheat protection. Compared with the fourth diagram, as shown in the fourth diagram A, if the second shape of the memory alloy (7A') has a longer second dimension (L2'), the movable conductive member (4A) is lifted up Higher, the contact piece (612A) can slide toward the second side (42A) of the movable conductive piece (4A), so that the operating piece (61A) rotates around the pivot point (610A), thus The operating member (61A) is forced to move to the closed position, so that the first conductive member (2A) and the second conductive member (3A) form a disconnected state to achieve the purpose of overheat protection. The types shown in the fourth figure and the fourth figure A are all feasible embodiments of the present invention.

When the operating temperature is higher than the memory temperature, as described above, the rocker switch can automatically become an open state. Under the open state, the operating temperature will gradually decrease. Once the operating temperature is lower than the memory temperature again, the memory alloy (7A) ( 7A') will return to the first shape again, the rocker switch can be used normally.

Please refer to the fifth figure to reveal the second embodiment of the present invention, which is substantially the same as the first embodiment described above, and includes a base body (1B), a first conductive member (2B), and a Two conductive parts (3B), movable conductive parts (4B), operating components (6B), memory alloy (7B), wherein the memory alloy (7B) is shaped as a spring. The first conductive member (2B) and the second conductive member (3B) are both inserted into the seat Body (1B). The movable conductive member (4B) straddles the first conductive member (2B) so that the movable conductive member (4B) takes the first conductive member (2B) as a fulcrum to form a rocker shape. The movable conductive member (4B) has a first side (41B) and a second side (42B) located on opposite sides of the fulcrum. The operation component (6B) also includes an operation member (61B) and a first elastic member (62B). The memory alloy (7B) shown in the fifth figure presents a first shape, under which the memory alloy (7B) will naturally shorten when stressed. The main difference between the second embodiment shown in the fifth figure and the first embodiment shown in the fourth figure above is that the second embodiment is further provided with a second elastic member (8B), and the second elastic member (8B) can provide A third elastic force acts on the operating member (61B), so that the operating member (61B) has a tendency to rotate around the pivot point (610B), thereby generating a closing torque. The second elastic member (8B) may be a spring, a leaf spring or rubber, etc. In this embodiment, it is a spring type.

In detail, the operating member (61B) is provided with a first convex portion (63B) at a position corresponding to the second side (42B), and the seat body (1B) has a second convex portion at a position corresponding to the first convex portion (63B) Part (10B), both ends of the second elastic member (8B) are sleeved on the first convex part (63B) and the second convex part (10B) respectively.

Continue to refer to the sixth figure, by operating the operating member (61B) to rotate around the pivot point (610B), the contact member (612B) slides on the movable conductive member (4B), which is The second side (42B) of the conductive member (4B) slides to the first side (41B) to drive the movable conductive member (4B) to selectively contact the second conductive member (3B) in a rocker motion pattern ), and the movable conductive element (4B) and the second conductive element (3B) can both be in contact with a silver contact (31B) (411B) to reduce impedance and reduce temperature rise. When the contact member (612B) slides to the first side (41B), the first elastic force of the first elastic member (62B) applies a first moment to the movable conductive member (4B), and the memory alloy The second elastic force of (7B) acts on the movable conductive member (4B), and a second torque that is opposite to the first torque is applied to the movable conductive member (4B). At this time, the first torque is greater than The second torque causes the movable conductive member (4B) to conduct through the first conductive member (2B) and the second conductive member (3B) to form a via state. In this path state, current flows through the movable conductive member (4B) The heat energy generated can be transferred to the memory alloy (7B). When the operating member (61B) is in the open position and the operating temperature is not higher than the memory temperature, although the third elastic force acts on the operating member (61B), the closing moment is applied to the operating member (61B), but the closing The force generated by the torque is still insufficient to allow the contact (612B) to overcome the frictional resistance between itself and the movable conductive member (4B), so that the operating member (61B) can be maintained in the open position.

Please refer to the seventh figure, when the working temperature is higher than the memory temperature, the memory alloy (7B) will change into a second shape, compared with the sixth figure, the memory alloy (7B in the seventh picture) ) Will extend, thus providing a force to act on the movable conductive member (4B), the acting force may be defined as a second elastic force, the second elastic force exerts on the movable conductive member (4B) in opposition to the first moment Toward the second moment, and the second moment is greater than the first moment, the movable conductive member (4B) leaves the second conductive member (3B) with the second torque, so that the first conductive member (2B) and The second conductive member (3B) is in an open state. At this time, the second moment is sufficient to lift the movable conductive member (4B), so that the silver contacts (31B) (411B) are separated from each other. In addition, after the movable conductive member (4B) is lifted, the operating member (61B) can be further pivoted to the closed position by the closing torque, so the operating member (61B) can be quickly and surely pivoted To this closed position.

When the operating temperature is higher than the memory temperature, as mentioned above, the rocker switch can automatically become an open state. Under the open state, the operating temperature will gradually decrease. Once the operating temperature is lower than the memory temperature again, the memory alloy (7B) will Once again restored to the first shape, the rocker switch can be used normally.

Please refer to the eighth figure to reveal the third embodiment of the present invention, which is substantially the same as the first embodiment described above, and includes a base (1C), a first conductive member (2C), and a Two conductive parts (3C), movable conductive parts (4C), operating components (6C), memory alloy (7C), wherein the memory alloy (7C) is shaped as a spring. The first conductive member (2C) and the second conductive member (3C) are both inserted into the base (1C). The movable conductive member (4C) straddles the first conductive member (2C) so that the movable conductive member (4C) takes the first conductive member (2C) as a fulcrum to form a rocker shape. The movable conductive member (4C) has a first side (41C) and a second side (42C) located on opposite sides of the fulcrum. The operating component (6C) also includes an operating member (61C) and a first elastic member (62C). The main difference between the third embodiment and the first embodiment is that the memory alloy (7C) is located between the movable conductive member (4C) and the operating member (61C).

In detail, please refer to the eighth figure and the ninth figure. The movable conductive element (4C) further includes a first connection part (412C). The first connection part (412C) is located on the first side (41C). The operating member (61C) has a second connecting portion (64C) corresponding to the first connecting portion (412C). The first connecting portion (412C) and the second connecting portion (64C) may be, for example, buttonholes. The hook parts (71C) at both ends of the memory alloy (7C) are fastened. When the working temperature of the memory alloy (7C) is lower than the memory temperature, the memory alloy (7C) has a first shape, such as a first length dimension (L1). Under the first shape, the memory alloy (7C) 7C) It stretches naturally when under tension. When the operating temperature is lower than the memory temperature, the first length dimension (L1) can be changed by switching the operating member (61C) to the closed position.

Continue to refer to the tenth figure, the user rotates the operating member (61C) around the pivot point (610C) to make the contact member (612C) slide on the movable conductive member (4C) to the The first side (41C) drives the movable conductive member (4C) to selectively contact the second conductive member (3C) in a rocker motion pattern, and the movable conductive member (4C) and the second conductive member (4C) 3C) can be contacted with a silver contact (31C) (411C) to reduce the impedance. When the contact member (612C) slides to the first side (41C), the first elastic force applied by the first elastic member (62C) applies a first moment to the movable conductive member (4C). Compared with the ninth figure, the memory alloy (7C) is elongated at this time, and the force exerted by the memory alloy (7C) on the movable conductive member (4C) is defined as a second elastic force, and the second elastic force acts on the The movable conductive member (4C) makes the movable conductive member (4C) have a tendency to rotate around the fulcrum of the first conductive member (2C) to form a second moment opposite to the first moment. The first moment Greater than the second moment, the movable conductive element (4C) is connected to the first conductive element (2C) and the second conductive element (3C) to form a via state. In this path state, the heat energy generated by the current through the movable conductive member (4C) can be transferred to the memory alloy (7C).

Please refer to the eleventh figure, when the working temperature is higher than the memory temperature, the memory alloy (7C) changes into a second shape, for example, having a second length dimension (L2), in the eleventh figure, shorten The memory alloy (7C) will make the second moment greater than the first moment. At this time, the second moment is enough to pull the movable conductive member (4C), so that the silver contacts (31C) (411C) are separated from each other, forming an open state . In this embodiment, the force exerted by the memory alloy (7C) on the operating member (61C) is defined as the third elastic force. The third elastic force causes the operating member to rotate around the pivot point (610C) as the axis, generating Closing torque, when the memory alloy (7C) is transformed into the second shape, the closing torque is sufficient for the contact (612C) to overcome the frictional resistance between itself and the movable conductive member (4C), so that the contact ( 612C) sliding toward the second side (42C) of the movable conductive member (4C), thus forcing the operating member (61C) to move to the closed position.

When the operating temperature is higher than the memory temperature, as described above, the rocker switch can automatically become an open state. Under the open state, the operating temperature will gradually decrease. Once the operating temperature is lower than the memory temperature again, the memory alloy (7C) will Once again restored to the first shape, the rocker switch can be used normally.

Please refer to FIG. 12 and FIG. 12A to reveal the fourth embodiment of the present invention, which is substantially the same as the first embodiment described above, and all include a base body (1D) and a first Conductive member (2D), second conductive member (3D), movable conductive member (4D), operating component (6D), memory alloy (7D), wherein the memory alloy (7D) is formed as a spring and includes an extension arm (72D) ). The first conductive element (2D) and the second conductive element (3D) are both inserted into the base (1D). The movable conductive member (4D) spans the first conductive member (2D) so that the movable conductive member (4D) uses the first conductive member (2D) as a fulcrum to form a rocker shape. The movable conductive member (4D) has a first side (41D) and a second side (42D) located on opposite sides of the fulcrum, the first There is a notch (421D) on both sides (42D). The operation component (6D) also includes an operation member (61D) and a first elastic member (62D). The main difference between the fourth embodiment and the first embodiment is that the memory alloy (7D) is connected between the base (1D) and the operating member (61D), and the memory alloy (7D) has a cantilever shape An extension arm (72D) corresponding to the recess (421D) of the movable conductive member (4D). The extension arm (72D) can contact the movable conductive member (4D) in a normal state or in an abnormal state. In the state shown in FIG. 12 of this embodiment, when the rocker switch is in a closed state, the extension arm (72D) ) Has not touched the movable conductive part (4D). The memory alloy (7D) has a first shape when the operating temperature is lower than the memory temperature, and under the first shape, the extension arm (72D) has a first angle (θ1), and the first angle ( θ1) refers to the angle between the extension direction of the extension arm (72D) and the central axis of the spring portion of the memory alloy (7D). In this first shape, the spring portion of the memory alloy (7D) will naturally shorten when stressed, and when the extension arm (72D) is lifted, the first angle (θ1) will naturally shrink.

As shown in the twelfth and thirteenth figures, in detail, the operating member (61D) is provided with a first convex portion (63D) corresponding to the second side (42D), and the seat body (1D) is opposite to There should be a second convex portion (10D) at the first convex portion (63D), two ends of the memory alloy (7D) are respectively sleeved on the first convex portion (63D) and the second convex portion (10D), the extension arm (72D) can be used to press against the second side (42D) of the movable conductive member (4D), and a second elastic force can be applied to the second side (42D) of the movable conductive member (4D). Thereby, the second elastic force of the extension arm (72D) acts on the movable conductive member (4D), so that the movable conductive member (4D) has a tendency to rotate around the fulcrum of the first conductive member (2D), forming a second Torque. In addition, the force of the memory alloy (7D) acting on the operating member (61D) is defined as a third elastic force, which causes the operating member (61D) to rotate about the pivot point (610D), Instead, a closing torque is formed.

Continue to refer to the thirteenth figure, by operating the operating member (61D) to rotate around the pivot point (610D), the contact member (612D) slides on the movable conductive member (4D) to The first side (41D), driving the movable conductive member (4D) to selectively contact the second conductive member (3D) in a rocker motion pattern, and the movable conductive member (4D) and the second conductive member (3D) can All contact with a silver contact (31D) (411D) to reduce the impedance. When the contact member slides to the first side (41D), the first elastic force of the first elastic member (62D) applies a first moment to the movable conductive member (4D), and the extension arm (72D) The second elastic force acts on the movable conductive member (4D), and a second torque that is opposite to the first moment is applied to the movable conductive member (4D). At this time, the first moment is greater than the second moment , And the force generated by the closing torque is not enough for the contact piece (612D) to overcome the frictional resistance between itself and the movable conductive piece (4D), so that the movable conductive piece (4D) leads to the first conductive piece (2D) and The second conductive member (3D) forms a via state. In this path state, the thermal energy generated by the current through the movable conductive member (4D) can be transferred to the memory alloy (7D) through the extension arm (72D).

Please continue to refer to the fourteenth figure. When the memory alloy (7D) absorbs the heat energy and the operating temperature is raised above the memory temperature, the memory alloy (7D) will transform into a second shape. In the second shape, The extension arm (72D) has a second angle (θ2), the second angle (θ2) refers to the angle between the extension direction of the extension arm (72D) and the central axis of the spring portion of the memory alloy (7D) The second included angle (θ2) is greater than the first included angle (θ1) shown in the twelfth figure. When the extension arm (72D) changes from the position shown in Figure 13 to the second angle (θ2) shown in Figure 14, so that the second moment is greater than the first moment, the movable conductive member (4D) With the aid of the second torque, the second conductive member (3D) is separated, so that the first conductive member (2D) and the second conductive member (3D) form an open circuit state to achieve the purpose of overheat protection. At this time, the force of the closing torque is enough to make the contact piece (612D) overcome the frictional resistance between itself and the movable conductive piece (4D), so that the contact piece (612D) slides to the second side of the movable conductive piece (4D) ( 42D), and then the operating member (61D) is moved to the closed position.

When the operating temperature is higher than the memory temperature, as mentioned above, the rocker switch can automatically become an open state. Under the open state, the operating temperature will gradually decrease. Once the operating temperature is lower than the memory temperature again, the memory alloy (7D) contains The extension arm (72D) will return to the first shape again, and the rocker switch can be used normally.

Please refer to the fifteenth figure to reveal the fifth embodiment of the present invention, which is substantially the same as the fourth embodiment described above, and all include a base body (1E), a first conductive member (2E), and a substantially same type and configuration relationship. The second conductive member (3E), the movable conductive member (4E), the operating component (6E), and the memory alloy (7E), wherein the memory alloy (7E) is formed into a spring shape, the memory alloy in the fifteenth figure ( 7E) presents a first shape under which the memory alloy (7E) will naturally shorten when stressed. The first conductive element (2E) and the second conductive element (3E) are both inserted into the base (1E). The movable conductive member (4E) spans the first conductive member (2E), so that the movable conductive member (4E) takes the first conductive member (2E) as a fulcrum to form a rocker shape. The movable conductive element (4E) has a first side (41E) and a second side (42E) located on opposite sides of the fulcrum. The operating component (6E) also includes an operating member (61E) and a first elastic member (62E). The memory alloy (7E) is connected between the base (1E) and the operating member (61E), and the movable conductive member (4E) can link the memory alloy (7E) when it is actuated.

As shown in the fifteenth figure and the sixteenth figure, the operating member (61E) is provided with a first convex portion (63E) at the second side (42E), and the seat body (1E) corresponds to the first convex There is a second convex portion (10E) at the portion (63E), two ends of the memory alloy (7E) are respectively sleeved on the first convex portion (63E) and the second convex portion (10E), and the movable conductive member (4E) ) There is at least one extension portion (43E) extending corresponding to the memory alloy (7E), for example, there is a pair of extension portions (43E) located at the second convex portion (10E), so that the movable conductive member (4E) can be linked when actuated The memory alloy (7E).

Continue to refer to the seventeenth figure, by operating the operating member (61E) to rotate around the pivot point (610E), the contact member (612E) slides on the movable conductive member (4E) to The first side (41E) drives the movable conductive member (4E) to selectively contact the second conductive member (3E) in a rocker motion pattern, and the movable conductive member (4E) and the second conductive member (3E) can all be contacted with a silver contact (31E) (411E) to reduce the impedance. The force of the memory alloy (7E) acting on the extension (43E) of the movable conductive member (4E) is defined as a second elastic force, which causes the movable conductive member (4E) to wrap around the first conductive member ( 2E) The tendency of the pivot to rotate, forming a second moment. The force of the memory alloy (7E) acting on the operating member (61E) is defined as a third elastic force, and the third elastic force acts on the operating member (61E) so that the operating member (61E) has a pivot point ( 610E) The tendency to rotate, and a closing torque is formed. When the contact member (612E) slides to the first side (41E), the first elastic force of the first elastic member (62E) applies a first moment to the movable conductive member (4E), and the second elasticity The force acts on the movable conductive member (4E), and the movable conductive member (4E) is applied with the second moment opposite to the first moment. At this time, the first moment is greater than the second moment, so that The movable conductive member (4E) conducts the first conductive member (2E) and the second conductive member (3E) to form a via state. In this passage state, the heat energy generated by the current through the movable conductive member (4E) can be transferred to the memory alloy (7E) through the extension (43E).

Please refer to the eighteenth figure, when the memory alloy (7E) absorbs the heat energy, and the operating temperature is raised above the memory temperature, the memory alloy (7E) will change to the second shape, compared with the seventeenth figure , The second shape of the memory alloy (7E) will become longer, which will cause the second elastic force of the memory alloy (7E) to become larger, so that the second torque is greater than the first torque, and thus the movable conductive member (4E) Use the second moment to leave the second conductive member (3E), so that the first conductive member (2E) and the second conductive member (3E) form an open state to achieve the purpose of overheating protection. At this time, the aforementioned closing torque is sufficient to make the contact (612E) Overcome the frictional resistance between itself and the movable conductive member (4E), make the contact member (612E) slide to the second side (42E) of the movable conductive member (4E), and make the operating member (61E) ) Move to the closed position.

When the operating temperature is higher than the memory temperature, as mentioned above, the rocker switch can automatically become an open state. Under the open state, the operating temperature will gradually decrease. Once the operating temperature is lower than the memory temperature again, the memory alloy (7E) will Once again restored to the first shape, the rocker switch can be used normally.

Please refer to the nineteenth figure to reveal the sixth embodiment of the present invention, which is substantially the same as the fifth embodiment described above, and includes a base body (1F), a first conductive member (2F), and a substantially same type and configuration relationship. The second conductive member (3F), the movable conductive member (4F), the operating component (6F), the memory alloy (7F), wherein the memory alloy (7F) is formed into a spring shape, the memory alloy (7F in the nineteenth picture) ) Presents a first shape under which the memory alloy (7F) will naturally shorten when stressed. The first conductive element (2F) and the second conductive element (3F) are both inserted into the base (1F). The movable conductive member (4F) spans the first conductive member (2F), so that the movable conductive member (4F) takes the first conductive member (2F) as a fulcrum to form a rocker shape. The movable conductive element (4F) has a first side (41F) and a second side (42F) located on opposite sides of the fulcrum. The operating component (6F) also includes an operating member (61F) and a first elastic member (62F). The memory alloy (7F) is located between the second side (42F) of the movable conductive member (4F) and the operating member (61F).

As shown in FIG. 19 and FIG. 20, in detail, the movable conductive element (4F) has a fitting portion (44F) on the second side (42F). One end of the memory alloy (7F) is sleeved on the sleeve portion (44F), and the other end of the memory alloy (7F) is pressed against the operating member (61F).

Continue to refer to the twenty-first figure, the user rotates the operating point (61F) around the pivot point (610F) to make the contact piece (612F) slide on the movable conductive element (4F) To the first side (41F), the movable conductive member (4F) is driven to selectively contact the second conductive member (3F) in a rocker motion pattern, and the movable conductive member (4F) and the second conductive member The pieces (3F) can be connected with one silver contact (31F) (411F) Touch to lower the impedance. When the contact member (612F) slides to the first side (41F), the first elastic force of the first elastic member (62F) applies a first moment to the movable conductive member (4F), and the memory alloy ( 7F) The acting force acting on the movable conductive member (4F) is defined as a second elastic force, and the second elastic force exerts a second moment on the movable conductive member (4F) opposite to the first moment, at this time , The first moment is greater than the second moment, so that the movable conductive member (4F) conducts the first conductive member (2F) and the second conductive member (3F) to form a channel state. In this path state, the heat energy generated by the current through the movable conductive member (4F) can be transferred to the memory alloy (7F).

Please continue to refer to the 22nd figure. When the memory alloy (7F) absorbs the heat energy and the operating temperature is raised above the memory temperature, the memory alloy (7F) will transform into a second shape, compared to the second In the eleventh figure, the memory alloy (7F) becomes longer under the second shape, which causes the second elastic force of the memory alloy (7F) to become larger, so that the second torque is greater than the first torque, the The movable conductive member (4F) leaves the second conductive member (3F) by means of the second moment, so that the first conductive member (2F) and the second conductive member (3F) form an open circuit state to achieve the purpose of overheat protection. The force of the memory alloy (7F) acting on the operating member (61F) is defined as a third elastic force, and the third elastic force acts on the operating member (61F) so that the operating member (61F) has a pivot point (610F) the tendency of rotation, and a closing torque is formed, which is enough to make the contact (612F) overcome the frictional resistance between itself and the movable conductive member (4F), so that the contact (612F) can The second side (42F) of the movable conductive member (4F) slides to move the operating member (61F) to the closed position.

When the operating temperature is higher than the memory temperature, as mentioned above, the rocker switch can automatically become an open state. Under the open state, the operating temperature will gradually decrease. Once the operating temperature is lower than the memory temperature again, the memory alloy (7F) will Once again restored to the first shape, the rocker switch can be used normally.

Please refer to FIG. 23 for the seventh embodiment of the present invention, which is substantially the same as the second embodiment described above, and includes a base body (1G) and a first conductive member (2G) that are approximately the same in type and arrangement relationship , Second conductive part (3G), movable conductive part (4G), operating component (6G), memory alloy (7G), second elastic part (8G). The first conductive element (2G) and the second conductive element (3G) are both inserted into the base (1G). The movable conductive member (4G) spans the first conductive member (2G), so that the movable conductive member (4G) takes the first conductive member (2G) as a fulcrum to form a rocker shape. The movable conductive element (4G) has a first side (41G) and a second side (42G) located on opposite sides of the fulcrum. The operating component (6G) also includes an operating member (61G) and a first elastic member (62G). The main difference from the second embodiment described above is that the memory alloy (7G) is a shrapnel, and the memory alloy (7G) in the twenty-third figure presents a first shape. Under the first shape, the memory alloy (7G) ) It will naturally deform when stressed.

As shown in Figure 23 with Figure 24A and Figure 24B, in detail, the memory alloy (7G) may be a U-shaped plate, and the memory alloy (7G) are opposite to each other A first extension (71G) and a second extension (72G), the first extension (71G) extends to the first side (41G) corresponding to the movable conductive member (4G), and the first extension Both the portion (71G) and the second extending portion (72G) have a hollowed out portion (73G) to facilitate installation and fixation. The second extending portion (72G) has an abutment (721G) at the corresponding hollow portion (73G). As shown in the twenty-fifth figure, the bottom surface (13G) of the seat body (1G) may have a hollow hole (131G) and a fitting portion (132G), and the abutment edge (721G) may abut the seat body ( 1G) one of the mating parts (132G), the memory alloy (7G) is installed on the seat body (1G), the hollow hole (131G) can be used to observe the memory alloy (7G), which is helpful in the assembly process Confirm that the memory alloy (7G) is properly installed.

Continue to refer to the twenty-sixth figure, the user rotates the operating member (61G) around the pivot point (610G) to make the contact member (612G) slide on the movable conductive member (4G) To the first side (41G), the movable conductive member (4G) is driven to selectively contact the second conductive member in a rocker motion pattern (3G), and the movable conductive member (4G) and the second conductive member (3G) can both be in contact with a silver contact (31G) (411G) to reduce the impedance. When the contact member (612G) slides to the first side (41G), the first elastic force of the first elastic member (62G) applies a first moment to the movable conductive member (4G), and the memory alloy The second elastic force of (7G) acts on the movable conductive member (4G), and a second torque that is opposite to the first torque is applied to the movable conductive member (4G). At this time, the first torque is greater than the The second torque causes the movable conductive member (4G) to conduct through the first conductive member (2G) and the second conductive member (3G) to form a via state. In this path state, the heat energy generated by the current through the movable conductive member (4G) can be transferred to the memory alloy (7G).

Please continue to refer to Figure 27. When the memory alloy (7G) absorbs the heat energy and the operating temperature is raised above the memory temperature, the memory alloy (7G) will transform into a second shape, under the second shape , The second extension (72G) will move the movable conductive member (4G), at this time the second elastic force of the memory alloy (7C) becomes larger, so that the second torque is greater than the first torque, the movable conductive member (4G) ) Use the second moment to leave the second conductive member (3G), so that the first conductive member (2G) and the second conductive member (3G) form an open state, to achieve the purpose of overheating protection. The force of the second elastic member (8G) acting on the operating member (61G) is defined as a third elastic force, and the third elastic force acts on the operating member (61G) so that the operating member (61G) has a pivot The tendency of the contact (610G) to rotate, forming a closing torque, which is sufficient for the contact (612G) to overcome the frictional resistance between itself and the movable conductive member (4G). The contact (612G) moves towards the movement The second side (42G) of the conductive member (4G) slides to move the operating member (61G) to the closed position.

When the operating temperature is higher than the memory temperature, as mentioned above, the rocker switch can automatically become an open state. Under the open state, the operating temperature will gradually decrease. Once the operating temperature is lower than the memory temperature again, the memory alloy (7G) will Once again restored to the first shape, the rocker switch can be used normally.

Based on the description of the above embodiments, the operation, use and effects of the present invention can be fully understood. However, the above-mentioned embodiments are only preferred embodiments of the present invention. Limiting the scope of implementation of the present invention, that is, simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the description of the invention, are within the scope of the present invention.

(1A)‧‧‧Body

(11A)‧‧‧accommodating space

(12A)‧‧‧accommodation slot

(2A)‧‧‧The first conductive part

(3A)‧‧‧Second conductive part

(4A)‧‧‧movable conductive parts

(41A)‧‧‧First side

(42A)‧‧‧Second side

(6A)‧‧‧Operating components

(61A)‧‧‧Operation

(610A) ‧‧‧ pivot point

(611A)‧‧‧Accommodation Department

(612A)‧‧‧Contact

(62A)‧‧‧The first elastic piece

(7A)‧‧‧Memory alloy

(L1)‧‧‧First length

Claims (6)

A method of using a memory alloy to overheat and power off a rocker switch includes the following steps: making a movable conductive member take a first conductive member as a fulcrum to form a rocker shape; and applying a first elastic force to the activity A first side of the conductive member relative to the fulcrum to apply a first moment to the movable conductive member; a memory alloy is provided, the memory alloy can change shape at a memory temperature, and a working temperature is lower than the memory temperature When the working temperature is higher than the memory temperature, the memory alloy has a second shape; when the working temperature is lower than the memory temperature, the first torque makes the activity conductive The component conducts the first conductive component and a second conductive component to form a path state, or the first elastic force exerts force on a second side of the movable conductive component opposite the fulcrum to apply the movable conductive component A power-off moment opposite to the first moment forms an open state; in the passage state, when the operating temperature is higher than the memory temperature, the memory alloy changes from the first shape to a second shape, The second shape provides a force acting on the movable conductive member, and applies a second moment opposite to the first moment to the movable conductive member, the second moment is greater than the first moment, the movable conductive member With the second torque away from the second conductive member, the first conductive member and the second conductive member form the disconnected state. The method for using a memory alloy to overheat and power off a rocker switch as described in item 1 of the patent application scope, wherein the memory temperature is between 80°C and 300°C. The method for using a memory alloy to overheat and power off a rocker switch as described in item 1 of the patent application scope, wherein the first elastic force is generated by a spring, a reed, or rubber. As described in item 1 of the patent application, the method of using a memory alloy to overheat and power off the rocker switch, wherein the acting force is a second elastic force, and further includes the following steps: connecting an operating member to a pivot point Pivot to an open position or a closed position to change the position where the first elastic force is applied to the movable conductive member, and when the operating member is in the open position, the first elastic force is applied to the movable conductive member In the aforementioned first moment, when the operating member is in the closed position, the operating member exerts the first elastic force on a second side of the movable conductive member opposite to the fulcrum to apply the movable conductive member to the second A torque is reversed to one of the power-off moments; a third elastic force is applied to the operating member to apply a closing torque to the operating member; when the operating temperature is higher than the memory temperature, the operating member utilizes the closing The torque pivots to this closed position. As described in Item 4 of the patent application scope, a method of using a memory alloy to overheat and de-energize a rocker switch, wherein the third elastic force is generated by a spring, a reed, or rubber. A method of overheating and power-off of an electrical equipment, which uses the method of using a memory alloy to overheat and power off the rocker switch as described in any one of the patent application items 1 to 5 to control the power supply of an electrical equipment Turn on and turn off the power, so that the first conductive member and the second conductive member are bridged on a live line power path or a neutral line power path of the electrical equipment.

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