TWM241786U - Safety switch - Google Patents

Description

M241786 V. Creation Instructions (1) [Technical Field to which the New Type belongs] This creation relates to a switch of an electrical component ', especially when the current exceeds the load, the switch can automatically trip and cut off the power to ensure the safety of power consumption. Also install a fuse or circuit breaker. [Prior art] Generally, there are two types of operation methods for the power switch: vertical push-type and seesaw-type. No matter which method is used, the conductive piece in the switch body is driven to contact the two conductive terminals at the same time by pressing a button. In order to form a current path, or the conductive sheet is separated from the two conductive terminals to form an open circuit. The first and second figures show examples of a conventional vertical push-type power switch structure, which is provided with two conductive terminals 7 with a fixed contact 9 and a conductive sheet 27 in a body 1. The conductive sheet A movable contact 271 is provided below both ends of 2 7; a pressing device 25 is provided above the main body 1, and a second spring 23 is provided between the pressing device 25 and the conductive sheet 27, and the conductive sheet 27 and the lower part of the interior of the body 1 There is a first spring 11 in between; the elastic force of the first spring 11 is greater than the elastic force of the second spring 23, so that when the pressing device 25 is not affected by external force, the conductive sheet 27 is moved upward by the elastic force of the first spring 11. The jacking caused the two movable contacts 2 7 1 of the conductive sheet 27 to separate from the fixed contacts 9 of the two conductive terminals 7 to form a disconnection (as shown in the first figure). When the pressing device 25 is operated to be pushed downward, the force of 4 # Bu Fang will compress the second spring 23, and then the elastic force of the spring 11 of the acting force of the second spring 23 will cause the conductive sheet 27 to move downward, The fixed contact 9 of the small conductive terminal 7 contacts to form a path (such as the first '_ contact 2 7 1 and the structural device using the pressing device 25 itself is maintained as shown), and the path state; and

Page 5 M241786 5. Creation instructions (2) When the button 2 5 2 is pressed and released again, the second spring 23 loses the applied force, and the spring force of the first spring 丨 丨 is greater than that of the second spring 23 The elastic force causes the conductive sheet 27 to be pushed up by the first spring n again to form an open circuit. In areas where the power supply is unstable, current overload sometimes occurs. At this time, if the electricity user cannot detect this phenomenon and continue to use it, it will cause overload and overheating, which will cause the public fire and even the public danger of fire, forming a switch. Potential crisis, based on the consideration of electricity safety, the general circuit design will use fuses or circuit breakers to provide a safety mechanism to prevent current overload, but this design will make the circuit more complicated and the cost is higher. Therefore, there were designs that set the safety structure directly inside the switch, such as U.S. Patent Nos. 5,7 8 6,7 4 2, 5,223,813, 4,937,548, 4,661 No. 667, No. 5, 223, 813, No. 4, 931, 762, No. 5, 451, 729, No. 4 '704' 59 4 and so on. However, all the pre-patent cases have the same disadvantages, that is, there are many components behind the button, and the linkage travel is complicated. In addition to increasing the manufacturing cost, the chance of failure due to the large number of components will increase. For example, in the structure disclosed in U.S. Patent No. 5, 2 2 3, 8 1 3, after the button is pressed, the link below the button is first connected, and the upper swinging component is connected through the link, and then it is pressed against or relaxed. The elastic contact piece connects or disconnects the upper contact or disconnects the circuit; in an ideal state, there should be no problems in operation and use. However, the complexity of these components results in higher costs. And the obvious shortcomings of increasing operational failure and slow response still exist, becoming a common problem for manufacturing and users. [New content]

M241786 V. Creation Instructions (3) 'Technical Problems to Be Solved' The main problems to be solved in this creation are too many components of traditional power switches, complicated linkage strokes, high manufacturing costs, and more components. The lack of increased chance of failure. "Technical means to solve the problem" _ This creative technical means to solve the lack of the conventional switch is to set a metal sheet with a two-way warp function inside the switch body. A first spring is arranged below the metal sheet, and the top is A second spring and a pressing device are provided, and the metal sheet is provided on a supporting device. When the pressing device is operated, the metal sheet can be held in contact with a plurality of conductive terminals provided on the switch body to conduct electricity. State, or the metal sheet is separated from the plurality of conductive terminals. When the metal sheet is kept in contact with a plurality of conductive terminals provided on the switch body at the same time, if the current overload causes the temperature of the metal sheet to rise, the metal sheet can be warped and deformed around its turning point, resulting in the metal sheet Disconnect from the conductive terminals to remove power. "Effects on the prior art" Compared with the design of the conventional power safety switch, the structure of this creation is more simplified, so the number of components is reduced, which reduces the manufacturing cost, and the linkage stroke of the structure is more In order to shorten and reduce the failure rate of the switch due to too many components. [Embodiment]

Page 7 Fifth, the creation code (4) The technical characteristics of the creation are combined with the schema; the three-dimensional exploded view of the relationship between the two elements, the element: the inner space 3, the two inner spaces 3 and above The convex portion facing downward is f electric terminal 7 ′, said conductive terminal 碡 9. A support device is placed on the bottom 5 and a support device is provided on the rear end; the support is provided as a hole 17 of a metal sheet 15 of a column 13 with a metal holder 15; said: central and metal The hole in the center of the sheet 15 bends and positions the metal sheet 15 upwards or downwards, or warps and positions it upward; there are protruding movable contacts 19; the metal sheet and the metal sheet 15 upward The upper end of the pillar 13 of the arc-shaped hole 17 is covered with the shape of a hat, or a second popping pressing device 25 is placed on the upper end of the beauty piece 21, and the pressing device 25 includes a movable shaft 2 5 1; the base 2 5 3 has a guide groove 2531 equidistantly distributed at a middle circumference. Press the movable shaft 251 to insert, and the protrusion of the button 252 and the outer diameter surface button 2 5 2 at its lower end are combined in the center hole of the base 2 5 3 :: The step-by-step description will be more clear, Show the composition of each component of the creation = the body 1 included on both sides = the bottom 5 of the yong, and the two inner spaces 3 of the inner space 3 are for the combination of a guide, and a protruding fixed connection 1 can be set on the first spring The preferred embodiment of the upper end of 11 can include a shape 21, and the upper end of the pillar 13 passes through the hole 1 7 and is provided on both sides 1 7 of the metal sheet i 5 with turning points 1 5 丨. The metal sheet 15 is warped downward a. The metal sheet 15 is set below the two ends of the metal sheet 15 to form an arc shape, and is combined with the pillar 13 in the state. Perforation hole Positioning element 21, the positioning element 21, any possible shape, positioning element 23. A body 253, a button 252, and a heart hole are provided on the outer surface of the main body 1. The inner wall surface of the center hole is ring 25. The lower end of the center hole is hollow and can accommodate a plurality of V-shaped distribution with a plurality of convex posts 2521 at the periphery of the lower end. ; When pressed, make the posts 2 5 2 1 slide in

Page 8 M241786

f f 导 槽 253 1. A plurality of guide pillars Πβ are provided on the outer diameter side wall of the movable shaft 25. The upper end of each guide pillar 2511 is formed as an inclined surface. When the movable shaft 251 is combined with a concave hole at the lower end of the movable shaft 251, the inclined surface of the upper end of the guide pillar 2511 is formed. Correspondingly, at the side of the V-shaped recess at the lower end of the button 2 5 2, the lower 'of the movable shaft 251 is brought into contact with the upper end of the second spring 23. With the structure of the pressing device 25, when the button 2 52 is pressed downward, 2 5 2 1 slides along the guide groove 2 5 3 1 while the button 2 5 2 pushes the movable shaft 2 5 丄 to compress the second spring. 23. At this time, the upper end of the guide post 2511 leaves the I-shaped recess of the button M and is shifted to the bottom of the button 2 5 2. After the button 2 5 2 is placed, the movable shaft 251 is pushed by the elastic force of the second spring 23 by mistake. Move up so that the guide post M Η is guided into the adjacent another v-shaped recess by using the slope at its upper end. Similarly, the convex post 2 25 2 of 25 2 also moves upward along the guide groove 2 53 1 to recover. In situ. Although the pressing device 25 has been described in detail in this case, the pressing device I still belongs to the conventional art, and is not the focus of this case. A method of using this creation is that when the button 25 2 is depressed (see the fourth figure), the first spring 11 is compressed, and then the two moving points 19 of the metal sheet 15 are simultaneously contacted with the two conductive terminals. 7 fixed contact 9 to form a current path; when the button is pressed again, the first spring 丨 丨 pushes the metal sheet 丨 5 upwards and the button 2 5 2 is pushed out by the second spring 2 3 Return to original position. When the current exceeds the load and the temperature of the metal sheet i 5 rises, the metal sheet i 5 will produce ^ deformation 'and warp around its turning point 1 5 丨 as the center, The metal piece 15 from the upper chess piece is changed to arch downward (as shown in the fifth figure), and the movable contact 15 at both ends of the metal piece 15 is cut off from the fixed contact 9 of the conductive terminal 7 A current interruption is formed, which can ensure the power safety of the switch. this

Page 9 M241786 Device 25 while the convex state makes current. The structure, as well as the simplification, the overall cost, and the failure rate. It is used to explain the form of this creative example _〇 令 合 金属 i 〇, and then when the sheet 15 moves up, it will force the sheet metal 15 to be reused by the user again ~ When the button is pressed again, as long as the current passes Restrictions on the creation between the zero-group structure of the carrier. Any modification 5. When the creative lesson (6), press the pressure again to make the metal sheet 1 5 踫 touch the spare metal sheet that is bent upwards. 1 5 Re-conduction Through the above-mentioned creation, the passage is closed or disconnected. The structure of the creation has been reduced, and the manufacturing time can be reduced, and the switch can be reduced. The above mentioned tools are only for the purpose of the creation. A switch made under the spirit of protecting the intention of this creation can decide to automatically turn off the power when it is turned on; also, the linkage stroke reduced by the traditional one is also a better embodiment. The same or changes should still be included

Page 10 M241786 The diagram is simple to explain. The plan sectional view of the structure of the conventional switch in the open state. α 一 ㈤ \ Plane cross-sectional view of the structure of the conventional switch in the channel state. The second figure is a three-dimensional exploded view showing the combination relationship of each component of this creation. Figure The fourth figure is a plane cross-sectional view showing the structure of the switch of this creation in the path state. The fifth figure is a plane cross-sectional view showing the open structure of the switch of this creation. [Description of component symbols] (1) Body (10) Convex portion (3) Inner space (5) Bottom 〇) Conductive terminal (9) Fixed contact (11) First spring (1 3) Post (15) closed Sheet metal (1 5 1) turning point (1 ^) hole (1 9) movable contact (2 1) positioning element (23) second spring (2 5) pressing device

$ 11 pages M241786 Brief description of the diagram (251) Movable shaft (251 1) Guide post (2 5 2) Button (2521) Convex post (2 5 3) Base body (2 5 3 1) Guide groove (27) Conductive sheet (271) Active contact

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Claims (1)

M241786 6. Scope of patent application1. A safety switch is provided with a plurality of conductive terminals and a conductive sheet in a body. The body is provided with a pressing device, and a second spring is arranged between the pressing device and the conductive sheet. A first spring is provided between the conductive sheet and the body, and the conductive sheet can be controlled to contact or not contact with the conductive terminal at the same time by operating the pressing device, characterized in that: the conductive sheet is a metal sheet, and the The metal sheet has the function of two-way assembling. The metal sheet is kept upward and upward. When the sheet is controlled by the pressing device to move up according to the application system, it can touch the inner part of the body and warp. When the alloy is moved, the metal switch is the safety switch described in item 1 of the patent scope, wherein the alloy I metal sheet is combined with a supporting device, and a second device is disposed between the supporting device and the pressing device. M 1 one one β Ί @ you spring, move under this support. According to the application, the mounting includes holes, and the pillars are at the end of the ship, in the spring. "Man π machine 1, 縿 文 縿 装 孔 你 π > a ... spring, the first spring device and the metal sheet are arranged between the support device and the body under the control of the pressing device, the second patent range The safety switch according to the above item, wherein the support | a pillar and a positioning element, the metal sheet is provided with a hole that passes through the hole of the metal sheet from bottom to top, and is between the column and the The first spring is provided, and the positioning element is combined between the column positioning element and the pressing device. The second bomb is provided. Page 13