Abstract
An insulative fixing plate damaged when overheating limits two conductive elements from contacting with each other, forming a closed path, when overheating, opening two conductive elements by an elastic force to form an open circuit. Each conductive element has a groove concaved in from an edge, and the groove has a groove width. The insulative fixing plate includes a connecting element and two limiting elements combined at two ends of the connecting element. Each limiting element has a working width larger than the groove width, and a holding space between the two limiting elements contains the two conductive elements, thereby abutting the two limiting elements at an external side of the conductive element respectively and limiting the two conductive elements from contacting with each other. The connecting element is damaged when overheating. The insulative fixing plate is used in overheat protection for a plug or a socket.
Claims
1-13. (canceled)
14. An insulative fixing plate damaged when overheating, being used to limit two conductive elements from contacting with each other to form a closed path, and the insulative fixing plate being damaged when overheating, allowing the two conductive elements to be opened with respect to each other by an elastic force to form an open circuit, with each of the two conductive elements being provided with a groove which is concaved in from an edge of the conductive element, the groove being provided with a groove width, the grooves on the two conductive elements being opposite to each other, and the insulative fixing plate damaged when overheating, comprising: a connecting element which is an insulative body and is put into the grooves, with the connecting element being damaged when overheating; and two limiting elements which are an insulative body and are combined at two ends of the connecting element, with each of the two limiting elements being provided with a working width which is larger than the groove width, a holding space being defined between the two limiting elements to contain the two conductive elements, allowing the two limiting elements to be abutted respectively at an external side of the conductive element, and limiting the two conductive elements from contacting with each other.
15. The insulative fixing plate damaged when overheating, according to claim 14, wherein a part of the connecting element is provided with a thickness of 0.1 cm to 1.2 cm.
16. The insulative fixing plate damaged when overheating, according to claim 15, wherein a part of the connecting element is provided with a thickness of 0.7 cm.
17. The insulative fixing plate damaged when overheating, according to claim 14, wherein an end part of the limiting element is provided with a guide-in part which is enlarged gradually.
18. The insulative fixing plate damaged when overheating, according to claim 14, wherein any one of the two limiting elements is a sphere, hemi-sphere, plate, cone or block.
19. The insulative fixing plate damaged when overheating, according to claim 14, wherein two ends of the connecting element are thicker, a middle section of the connecting element is thinner, and the thickness of the middle section is between 0.1 cm and 1.2 cm.
20. The insulative fixing plate damaged when overheating, according to claim 14, wherein the connecting element is a plate, is provided with a long edge and is provided with a through-hole, with that the shortest distance from a rim of the through-hole to the long edge is between 0.1 cm and 1.2 cm.
21. The insulative fixing plate damaged when overheating, according to claim 14, wherein another connecting element is further connected together with the connecting element in between the two limiting elements.
22. The insulative fixing plate damaged when overheating, according to claim 14, wherein an extended length of the connecting element is not larger than the depth of the groove.
23. A plug using the insulative fixing plate damaged when overheating, according to claim 14, comprising: an insulative unit; a live wire pin and a neutral line pin which are all disposed in the insulative unit and extended out of the insulative unit, with that the live wire pin and the neutral line pin are provided respectively with a first groove concaved in from an edge of the live wire pin and from an edge of the neutral line pin; and a live wire and a neutral line which are provided respectively with a second groove concaved in from an edge of the live wire and from an edge of the neutral line; by putting the connecting element of the insulative fixing plate damaged when overheating into the first groove of the live wire pin and the second groove of the live wire, and using the limiting elements of the insulative fixing plate damaged when overheating to restrain the live wire pin and the live wire, the live wire pin and the live wire contacting with each other to form a closed path; and by putting the connecting element of the insulative fixing plate damaged when overheating into the first groove of the neutral line pin and the second groove of the neutral line, and using the limiting elements of the insulative fixing plate damaged when overheating to restrain the neutral line pin and the neutral line, the neutral line pin and the neutral line contacting with each other to form a closed path; the connecting elements being damaged when overheating, allowing that by an elastic force, the live wire pin and the live wire are opened with respect to each other, and the neutral line pin and the neutral line are opened with respect to each other, thereby forming an open circuit.
24. The plug according to claim 23, wherein the live wire pin and the live wire are extended along a same direction, and the neutral line pin and the neutral line are extended along a same direction.
25. The plug according to claim 23, wherein the live wire pin is extended along a direction perpendicular to the direction along which the live wire is extended, and the neutral line pin is extended along a direction perpendicular to the direction along which the neutral line is extended.
26. The plug according to claim 23, wherein a part of the connecting element is provided with a thickness of 0.1 cm to 1.2 cm.
27. The plug according to claim 23, wherein an end part of the limiting element is provided with a guide-in part which is enlarged gradually.
28. The plug according to claim 23, wherein any one of the two limiting elements is a sphere, hemi-sphere, plate, cone or block.
29. The plug according to claim 23, wherein two ends of the connecting element is thicker, a middle section of the connecting element is thinner, and the thickness of the middle section is between 0.1 cm and 1.2 cm.
30. The plug according to claim 23, wherein the connecting element is a plate, is provided with a long edge and is provided with a through-hole, with that the shortest distance from the rim of the through-hole to the long edge is between 0.1 cm and 1.2 cm.
31. The plug according to claim 23, wherein another connecting element is connected together with the connecting element, between the two limiting elements.
32. The plug according to claim 23, wherein the extended length of the connecting element is not larger than the depth of the groove.
33. A socket using the insulative fixing plate damaged when overheating, according to claim 14, comprising: an insulative unit which is provided with a live wire receptacle and a neutral line receptacle; a live wire terminal which is installed in the insulative unit and corresponds to the live wire receptacle, and a neutral line terminal which is installed in the insulative unit and corresponds to the neutral line receptacle, with that the live wire terminal and the neutral line terminal are provided respectively with a first groove concaved in from an edge of the live wire terminal and from an edge of the neutral line terminal; and a live wire which corresponds to the live wire terminal, and a neutral line which corresponds to the neutral line terminal, with that the live wire and the neutral line are provided respectively with a second groove concaved in from an edge of the live wire and from an edge of the neutral line; by putting the connecting element of the insulative fixing plate damaged when overheating into the first groove of the live wire terminal and the second groove of the live wire, and using the limiting elements of the insulative fixing plate damaged when overheating to restrain the live wire terminal and the live wire, the live wire terminal and the live wire contacting with each other to form a closed path; and by putting the connecting element of the insulative fixing plate damaged when overheating into the first groove of the neutral line terminal and the second groove of the neutral line, and using the limiting elements of the insulative fixing plate damaged when overheating to restrain the neutral line terminal and the neutral line, the neutral line terminal and the neutral line contacting with each other to form a closed path; the connecting element being damaged when overheating, allowing that by an elastic force, the live wire terminal and the live wire are opened with respect to each other, and the neutral line terminal and the neutral line are opened with respect to each other, thereby forming an open circuit.
34. The socket according to claim 33, wherein a part of the connecting element is provided with a thickness of 0.1 cm to 1.2 cm.
35. The socket according to claim 33, wherein an end part of the limiting element is provided with a guide-in part which is enlarged gradually.
36. The socket according to claim 33, wherein any one of the two limiting elements is a sphere, hemi-sphere, plate, cone or block.
37. The socket according to claim 33, wherein two ends of the connecting element is thicker, a middle section of the connecting element is thinner and the thickness of the middle section is between 0.1 cm and 1.2 cm.
38. The socket according to claim 33, wherein the connecting element is a plate, is provided with a long edge and is provided with a through-hole, with that the shortest distance from the rim of the through-hole to the long edge is between 0.1 cm and 1.2 cm.
39. The socket according to claim 33, wherein another connecting element is connected together with the connecting element, between the two limiting elements.
40. The socket according to claim 33, wherein the extended length of the connecting element is not larger than the depth of the groove.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0032] FIG. 1 shows a three-dimensional view of appearance of an insulative fixing plate damaged when overheating, according to an embodiment of the present invention.
[0033] FIG. 2 shows a three-dimensional exploded view illustrating the combination of the insulative fixing plate damaged when overheating with two conductive elements, according to the embodiment of the present invention.
[0034] FIG. 3 shows a schematic view illustrating that a guide-in part is used to facilitate putting two conductive elements into a holding space of the insulative fixing plate damaged when overheating, according to the embodiment of the present invention.
[0035] FIG. 4 shows a three-dimensional view of assembly illustrating the combination of the insulative fixing plate damaged when overheating with two conductive elements, according to the embodiment of the present invention.
[0036] FIG. 5 shows a three-dimensional view of assembly illustrating the combination of the insulative fixing plate damaged when overheating with two conductive elements along another direction, according to the embodiment of the present invention.
[0037] FIG. 6 shows a schematic view illustrating the combination of the insulative fixing plate damaged when overheating with two conductive elements, limiting the two conductive elements from contacting with each other, according to the embodiment of the present invention.
[0038] FIG. 7 shows a schematic view illustrating that as a protected circuit is overheated, the insulative fixing plate damaged when overheating is melted to reduce a binding force, so that the two conductive elements are opened with respect to each other by an elastic force, according to the embodiment of the present invention.
[0039] FIG. 8 shows a three-dimensional view of appearance illustrating that as the protected circuit is overheated, the insulative fixing plate damaged when overheating is melted to reduce the binding force, so that the two conductive elements are opened with respect to each other by an elastic force, according to the embodiment of the present invention.
[0040] FIG. 9 shows a schematic view illustrating that as the protected circuit is overheated, the insulative fixing plate damaged when overheating is melted and broken, so that the two conductive elements are opened with respect to each other by an elastic force, according to the embodiment of the present invention.
[0041] FIG. 10 shows a three-dimensional view of appearance illustrating that as the protected circuit is overheated, the insulative fixing plate damaged when overheating is melted and broken, so that the two conductive elements are opened with respect to each other by an elastic force, according to the embodiment of the present invention.
[0042] FIG. 11 shows a schematic view of another configuration of the insulative fixing plate damaged when overheating, according to the embodiment of the present invention.
[0043] FIG. 12 shows a schematic view of another configuration of the insulative fixing plate damaged when overheating, according to the embodiment of the present invention.
[0044] FIG. 13 shows a schematic view of another configuration of the insulative fixing plate damaged when overheating, according to the embodiment of the present invention.
[0045] FIG. 14 shows a schematic view of another configuration of the insulative fixing plate damaged when overheating, according to the embodiment of the present invention.
[0046] FIG. 15 shows a schematic view of another configuration of the insulative fixing plate damaged when overheating, according to the embodiment of the present invention.
[0047] FIG. 16 shows a schematic view of another configuration of the insulative fixing plate damaged when overheating, according to the embodiment of the present invention.
[0048] FIG. 17 shows a schematic view of another configuration of the insulative fixing plate damaged when overheating, according to the embodiment of the present invention.
[0049] FIG. 18 shows a schematic view illustrating that the insulative fixing plate damaged when overheating is used in a plug, wherein a live wire pin and a live wire are extended along a same direction, and a neutral line pin and a neutral line are extended along a same direction, according to the present invention.
[0050] FIG. 19 shows an overall schematic view illustrating that the insulative fixing plate damaged when overheating is used in the plug, wherein the live wire pin is extended along a direction perpendicular to the direction along which the live wire is extended, and the neutral line pin is extended along a direction perpendicular to the direction along which the neutral line is extended, according to the present invention.
[0051] FIG. 20 shows a first schematic view illustrating that the insulative fixing plate damaged when overheating is used in a socket, according to the present invention.
[0052] FIG. 21 shows a second schematic view illustrating the insulative fixing plate damaged when overheating is used in the socket, according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0053] According to the abovementioned technical features, the primary benefits of the insulative fixing plate damaged when overheating as well as a plug and a socket using that insulative fixing plate can be clearly disclosed in the following embodiment.
[0054] Referring to FIG. 1, an insulative fixing plate damaged when overheating 1, according to the present embodiment, comprises a connecting element 11 and two limiting elements 12 which are combined at two ends of the connecting element 11. The thickness of the connecting element 11 is between 0.1 cm and 1.2 cm, and is 0.7 cm in the present embodiment. A holding space V is defined between the two limiting elements 12 and at least an end part of the two limiting elements 12 is provided with a guide-in part 13 which is enlarged gradually. In addition, the connecting element 11 and the two limiting elements 12 are all an insulative body.
[0055] Referring to FIGS. 1 to 5, the insulative fixing plate damaged when overheating 1 is combined on two conductive elements 2 of a protected circuit, wherein the two conductive elements 2 are separated and do not contact with each other under the initial state. Each of the said two conductive elements 2 is provided with a groove 21 which is concaved in from an edge of the aforementioned conductive element 2. The groove 21 is provided with a groove width S, and the grooves 21 on the two conductive elements 2 are opposite to each other. An external force F is applied first to enable the two conductive elements 2 to close to and contact with each other. Next, the connecting element 11 of the insulative fixing plate damaged when overheating 1 is put transversely in the grooves 21 of the two conductive elements 2, allowing the two conductive elements 2 to be contained in the holding space V. As the grooves 21 on the two conductive elements 2 are concaved in from the edges of the two conductive elements 2, a user can put the connecting element 11 of the insulative fixing plate damaged when overheating 1 into the grooves 21 easily and directly, and the guide-in part 13 can easily guide the connecting element 11 into the grooves 21 (as shown in FIG. 3). In addition, the extended length L of the connecting element 11 is not larger than the depth M of the grooves 21, and each of the two limiting elements 12 is provided with a working width W which is larger than the groove width S. Therefore, when the two conductive elements 2 are contained in the holding space V, the two limiting elements 12 can be abutted at the external sides of the two conductive elements 2 and the two conductive elements 2 can be limited from contacting with each other to form a closed path.
[0056] Referring to FIG. 6, in the abovementioned method, the connecting element 11 is put into the grooves 21 of the two conductive elements 2, and then the two conductive elements 2 are clamped tightly and fixed by the limiting elements 12. This method provides sufficient rigidity of combination to combine and position the two conductive elements 2 of the protected circuit.
[0057] Referring to FIG. 7 and FIG. 8, when the two conductive elements 2 are overheated to about 110 C. to 160 C. by current overloading, false contact or other reason of the protected circuit, with 135 C. to 140 C. as an example in the present embodiment, the insulative fixing plate damaged when overheating 1 will be melted and softened by heat, which reduces the binding force. At this time, the elastic force between the two conductive elements 2 will be released, such that the two conductive elements 2 can be opened with respect to each other to form an open circuit, thereby avoiding a danger of fire by overheating. The thickness of the connecting element 11 is between 0.1 cm and 1.2 cm, assuring that when the connecting element 11 is softened by overheating, the elastic force between the two conductive elements 2 is strong enough to overcome the binding force to eject off the conductive elements 2. As the connecting element 11 is put into the grooves 21 of the two conductive elements 2, and the extended length of the connecting element 11 is not larger than the depth of the grooves 21, when the connecting element 11 is damaged by heat, the two limiting elements 12 can be assured to be subjected to the elastic force between the two conductive elements 2 uniformly and to be ejected off, which enables the two conductive elements 2 to be actually opened with respect to each other, thereby forming an open circuit.
[0058] Referring to FIG. 9 and FIG. 10, as the insulative fixing plate damaged when overheating 1 is made of an insulative material, even when the connecting element 11 is broken by melting to eject off the two limiting elements 12 freely, the insulation property of the insulative fixing plate damaged when overheating 1 can prevent the insulative fixing plate from contacting with surrounding electronic elements by mistake to cause short-circuit, thereby securing the safety after forming an open circuit.
[0059] Referring to FIGS. 11 to 17, FIG. 11 shows an insulative fixing plate damaged when overheating 1A, which is provided with a connecting element 11A and two limiting elements 12A combined at two ends of the connecting element 11A, with that the two limiting elements 12A are all in a spherical shape; FIG. 12 shows an insulative fixing plate damaged when overheating 1B, which is provided with a connecting element 11B and two limiting elements 12B combined at two ends of the connecting element 11B, with that the one limiting element 12B is in a spherical shape and the other limiting element 12B is a plate; FIG. 13 shows an insulative fixing plate damaged when overheating 1C, which is provided with a connecting element 11C and two limiting elements 12C combined at two ends of the connecting element 11C, with that the one limiting element 12C is in a hemi-spherical shape and the other limiting element 12C is a plate; FIG. 14 shows an insulative fixing plate damaged when overheating 1D, which is provided with a connecting element 11D and two limiting elements 12D combined at two ends of the connecting element 11D, with that the two limiting elements 12D are all in a hemi-spherical shape; FIG. 15 shows an insulative fixing plate damaged when overheating 1E, which is provided with a connecting element 11E and two limiting elements 12E combined at two ends of the connecting element 11E, with that the connecting element 11E is a plate which is provided with a long edge 111E and a through-hole 13E, and the shortest distance from the rim of the through-hole 13E to the long edge 111E is between 0.1 cm and 1.2 cm; FIG. 16 shows an insulative fixing plate damaged when overheating 1F, which is provided with a connecting element 11F and two limiting elements 12F combined at two ends of the connecting element 11F, with that two ends of the connecting element 11F are thicker, a middle section is thinner and the thickness of the middle section is between 0.1 cm and 1.2 cm; and FIG. 17 shows an insulative fixing plate damaged when overheating 1G which is provided with at least two connecting elements 11G and two limiting elements 12G combined at two ends of the connecting elements 11G.
[0060] FIGS. 11 to 17 list all kinds of configurations of the limiting elements, primarily describing that no matter what kind of configuration of the limiting elements is, such as a cone or other regular or irregular block not shown in the drawings, merely depending upon the convenience in processing of a processing machine, as long as the working width of the limiting element is larger than the groove width of the groove on the conductive element, the insulative fixing plate damaged when overheating can be combined on the two conductive elements to limit the two conductive elements from contacting with each other.
[0061] Referring to FIG. 1 and FIG. 18, the insulative fixing plate damaged when overheating 1, is used in overheat protection for a plug. The plug of the present embodiment comprises an insulative unit 3, a live wire pin 4, a neutral line pin 5, a live wire 6 and a neutral line 7. The live wire pin 4 and the neutral line pin 5 are all disposed in the insulative unit 3 and extended out of the insulative unit 3. The live wire pin 4 and the neutral line pin 5 are provided respectively with a first groove 41, 51. The first groove 41 is concaved in from an edge of the live wire pin 4, and the first groove 51 is concaved in from an edge of the neutral line pin 5. The live wire 6 and the neutral line 7 correspond to the live wire pin 4 and the neutral line pin 5, respectively. In addition, the live wire 6 and the neutral line 7 are provided respectively with a second groove 61, 71 corresponding to the first groove 41, 51. The second groove 61 is concaved in from an edge of the live wire 6, and the second groove 71 is concaved in from an edge of the neutral line 7. Furthermore, the live wire pin 4 and the live wire 6 are extended along a same direction, and the neutral line pin 5 and the neutral line 7 are extended along a same direction.
[0062] By putting the connecting element 11 of the insulative fixing plate damaged when overheating 1 into the first groove 41 of the live wire pin 4 and the second groove 61 of the live wire 6, and using the limiting elements 12 of the insulative fixing plate damaged when overheating 1 to restrain the live wire pin 4 and live wire 6, the live wire pin 4 and the live wire 6 can contact with each other to form a closed path; and by putting the connecting element 11 of the insulative fixing plate damaged when overheating 1 into the first groove 51 of the neutral line pin 5 and the second groove 71 of the neutral line 7, and using the limiting elements 12 of the insulative fixing plate damaged when overheating 1 to restrain the neutral line pin 5 and neutral line 7, the neutral line pin 5 and the neutral line 7 can contact with each other to form a closed path. Furthermore, the connecting element 11 can be melted down when overheating, such that the live wire pin 4 and the live wire 6 can be opened with respect to each other and the neutral line pin 5 and the neutral line 7 can be opened with respect to each other by an elastic force, thereby forming an open circuit.
[0063] As shown in FIG. 19, other than the abovementioned plug, the insulative fixing plate damaged when overheating can be also used in another type of plug. This plug comprises an insulative unit 3A, a live wire pin 4A, a neutral line pin 5A, a live wire 6A and a neutral line 7A. The live wire pin 4A and the neutral line pin 5A are all disposed in the insulative unit 3A and extended out of the insulative unit 3A. The live wire pin 4A and the neutral line pin 5A are provided respectively with a first groove 41A, 51A. The first groove 41A is concaved in from an edge of the live wire pin 4A, and the first groove 51A is concaved in from an edge of the neutral line pin 5A. The live wire 6A and the neutral line 7A correspond to the live wire pin 4A and the neutral line pin 5A, respectively. In addition, the live wire 6A and the neutral line 7A are provided respectively with a second groove 61A, 71A corresponding to the first groove 41A, 51A. The second groove 61A is concaved in from an edge of the live wire 6A, and the second groove 71A is concaved in from an edge of the neutral line 7A. Besides that, the live wire pin 4A is extended along a direction perpendicular to the direction along which the live wire 6A is extended; and the neutral line pin 5A is extended along a direction perpendicular to the direction along which the neutral line 7A is extended. In other words, the first grooves are provided to fit with the configurations of the live wire pin and the neutral line pin, whereas the second grooves are provided to fit with the configurations of the live wire and the neutral line.
[0064] Referring to FIG. 1, FIG. 20 and FIG. 21, the insulative fixing plate damaged when overheating 1 is used in overheat protection for a socket. The socket of the present embodiment comprises an insulative unit 8 which is provided with a live wire receptacle 81 and a corresponding neutral line receptacle 82; a live wire terminal 9 which is installed in the insulative unit 8 and corresponds to the live wire receptacle 81, and a neutral line terminal 10 which is installed in the insulative unit 8 and corresponds to the neutral line receptacle 82, with that the live wire terminal 9 and the neutral line terminal 10 are provided respectively with a first groove 91, 101 concaved in from an edge of the live wire terminal 9 and from an edge of the neutral line terminal 10; a live wire 20 which corresponds to the live wire terminal 9, and a neutral line 30 which corresponds to the neutral line terminal 10, with that the live wire 20 and the neutral line 30 are provided respectively with a second groove 201, 301 corresponding to the first groove 91, 101, and with that the second grooves 201, 301 are concaved in from an edge of the live wire 20 and from an edge of the neutral line 30.
[0065] By putting the connecting element 11 of the insulative fixing plate damaged when overheating 1 into the first groove 91 of the live wire terminal 9 and the second groove 201 of the live wire 20, and using the limiting elements 12 of the insulative fixing plate damaged when overheating 1 to restrain the live wire terminal 9 and the live wire 20, the live wire terminal 9 and the live wire 20 can contact with each other to form a closed path; and by putting the connecting element 11 of the insulative fixing plate damaged when overheating 1 into the first groove 101 of the neutral line terminal 10 and the second groove 301 of the neutral line 30, and using the limiting elements 12 of the insulative fixing plate damaged when overheating 1 to restrain the neutral line terminal 10 and the neutral line 30, the neutral line terminal 10 and the neutral line 30 can contact with each other to form a closed path. In addition, the connecting element 11 will be damaged by melting when overheating, such that by an elastic force, the live wire terminal 9 and the live wire 20 can be opened with respect to each other, whereas the neutral line terminal 10 and the neutral line 30 can be opened with respect to each other, thereby forming an open circuit.
[0066] It is of course to be understood that the embodiments described herein is merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.
