JP2008123789A - Coupling structure of thermal fuse - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coupling structure of a thermal fuse of a rivet joining system. <P>SOLUTION: By rivet joining mainly thermally fusing metal to two separated terminals in a circuit, the two terminals are electrically connected to communicate the circuit. At a state without external force added, the two free ends of the two-piece terminals retain a constant interval. When a current is overloaded, the circuit is overheated, or an environment temperature in use is too high, the thermally fusing metal receives heat to have its temperature rise and fuse and fracture. With this, the free ends of the two-piece terminals are out of contact with each other to have the circuit in an OFF state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a type of thermal fuse connection structure. In particular, a kind of hot-melt metal is connected to two separate terminals in the circuit by rivets so that the two terminals are electrically connected and the circuit is turned on, and when the current is overloaded or the circuit is overheated, the heat The molten metal receives heat and rises in temperature, melts and breaks, and the circuit is connected to a thermal fuse connection structure that is turned off.

Electricity is indispensable for modern people. Equipment that uses electricity can be found everywhere in the world, and the computerization or IT industry, home, transportation, education, entertainment, etc. cannot be realized without electricity. For this reason, the use of safe electricity is also an item that should be cautious for modern people.
Generally, a main switch for controlling a power source is installed in the entire circuit of the power supply unit, and the main switch is normally in an ON state. If a fuse or breaker is installed on top of the circuit and there is an overload of electrical products used in the entire circuit resulting in a current overload, short circuit, or overheating of the circuit, the fuse will melt or break or The circuit is turned off and the entire circuit is turned off to ensure the safety of electricity use.

Separately, the entire circuit has each circuit, and a switch for control is further installed in the circuit. The switch mainly executes switching of each circuit on and off (OFF) to enhance the safety of electricity use. Many switches have a feature that automatically turns off (OFF) when the current is overloaded, and when the current is overloaded, the fuse or breaker of the entire circuit cannot react immediately and does not turn off (OFF) or blow. To prevent dangerous situations such as ignition of electric wires.
In addition to using a structure in which the entire circuit and each circuit are automatically cut off when the fuse, breaker, and switch overload current is overheated and turned off (OFF), high-priced electronic products, data processing IT equipment, Alternatively, some single electronic and electrical products, such as electric heaters with relatively high power consumption, each have a circuit protection structure that is a temperature sensing breaker. This protects a single electronic or electrical product, and when an overload current or circuit overheating occurs in the single electronic or electrical product body, it immediately senses and shuts off the electricity and damages the product. At the same time, prevent the situation of single electronic and electrical products overloading and overheating the current of each circuit, the whole circuit, and operating the equipment that uses other electricity in the circuit, the whole circuit Secure.

A known temperature sensing breaker used for a single electronic product has a contact resilient piece 201 installed in its circuit as shown in FIGS. The contact resilient piece 201 is curved, deforms when it receives heat, and bends and flips in the opposite direction. One end of the contact resilient piece 201 is fixed to the first terminal 202, the opposite end of the contact resilient piece 201 is a free end, and a first conductive point 203 is installed at the free end. Separately, a second conductive point 205 is provided on the second terminal 204, and the second conductive point 205 corresponds to the first conductive point 203.
In operation, the contact resilient piece 201 is bent in the direction of the second terminal 204, so that the first conductive point 203 at the free end of the contact resilient piece 201 and the second conductive point 205 of the second terminal 204 are in contact with each other. The communication state of the circuit is maintained (see FIG. 1).
At the time of overload, the contact elastic piece 201 receives heat and deforms and bounces in the opposite direction, whereby the first conductive point 203 and the second conductive point 205 at the free end of the contact elastic piece 201 are separated, and the circuit is turned off ( OFF) state. Thus, as shown in FIG. 2, damage to the circuit of the electronic product is prevented.

However, the known temperature sensing breaker has the following drawbacks.
a. At the time of manufacturing the contact resilient piece 201, it is not possible to ensure complete identity of the thickness, curvature, and structural characteristics of each contact resilient piece 201. The temperature value of the reaction cannot be controlled effectively. Therefore, the error of the set sensing temperature value is relatively large.
b. Since the contact elastic piece 201 is not sensitive enough to be deformed by heat and bent in the opposite direction, the timely protection cannot be exhibited when the electronic product is overloaded.
c. Since the contact elastic piece 201 is incompletely disconnected or interrupted immediately, the circuit is still energized and the circuit is still overheated, resulting in the danger of the single electronic product and the entire circuit.
d. If the contact elastic piece 201 is incompletely bounced during overload and circuit overheating, the contact elastic piece 201 recovers its shape and returns to the energized state when the contact elastic piece 201 cools down. It is. In addition, the electronic and electrical equipment in the entire circuit causes current instability due to repeated disconnection and energization, shuts down or cannot operate normally, shortens the service life, and is completely damaged in severe cases.

  According to the present invention, a device that cuts off the electric power by detecting the temperature of a contact elastic piece of a known temperature sensing breaker used for a single electronic product cannot accurately and effectively set the temperature value of electric cutting, and the current overshoot is not possible. When the load is overheated, when the contact elastic piece does not instantly flip, or when the separation is incomplete or does not separate, the circuit continues to be energized, and the circuit blows sparks or repeats energization and de-energization. It is an object of the present invention to provide a thermal fuse connection structure that is stable, solves problems such as shutdown of electronic products or failure of normal operation, shortened service life, and even complete destruction.

  The present invention mainly rivet-joins the molten metal to two separate terminals in the circuit, so that the two terminals are electrically connected to each other to communicate with the circuit and are not subjected to external force. A constant distance is maintained between the two free ends of the individual terminals. When the current is overloaded, the circuit is overheated, or the ambient temperature of use is too high, the molten metal is heated and the temperature rises and melts. As a result, the free ends of the two terminals are not in contact with each other, and the circuit is turned off.

That is, by riveting the molten metal to two separate terminals in the circuit, the two terminals are electrically connected to communicate the circuit, overloading the current, overheating the circuit, When the ambient temperature is too high, the hot molten metal receives heat, the temperature rises, the melt breaks, and the circuit is turned off (OFF), thereby achieving the purpose of ensuring the safety of electricity use,
It also uses the property that when the current overloads and the circuit overheats, the molten metal always melts and ruptures when the temperature rises due to heat, and the circuit is completely turned off (OFF). It is possible to prevent the occurrence of a dangerous situation in which a circuit contact sparks or the circuit ignites, and can fully ensure the safety of electricity use, and protect the functional characteristics of various electrical products in the circuit Can
Furthermore, it is possible to easily connect the hot-melt metal to two separate terminals in the circuit by the rivet bonding method, so the overall structure is simple, easy to manufacture, compared to the known breaker structure Since the volume is compact, the thermal fuse connecting structure is characterized in that the need for miniaturization can be achieved and the cost can be reduced.

The invention of claim 1 includes two terminals, a hot-melt metal,
The two terminals are fixed in the wiring of the circuit, and the two free ends of the two terminals are each provided with an opening that can be penetrated, and in the state where no external force is applied, two of the two terminals are provided. Maintain a constant distance between the free ends,
The hot-melt metal is elongated and has the property of melting and tearing when the temperature rises due to heat,
At the time of combination, the hot molten metal passes through the opening of the free ends of the two terminals and presses the hot molten metal in a rivet manner, so that the hot molten metal is free in the two separate terminals. It is connected to a thermal fuse, which is fixed to the end and is electrically connected, the free ends of the two terminals are not in contact with each other, and the free end of the two terminals has a fixed distance. .
According to a second aspect of the present invention, there is provided the thermal fuse connecting structure according to the first aspect, wherein the opening of the two terminals is a sealing opening.
According to a third aspect of the present invention, there is provided the thermal fuse connection structure according to the first aspect, wherein the opening of the two terminals is an open hole.
According to a fourth aspect of the present invention, there is provided the thermal fuse connecting structure according to the first aspect, wherein at least one of the two terminals is made of a conductive material having elasticity, thereby forming a terminal having elasticity. And a thermal fuse connection structure.
According to a fifth aspect of the present invention, there is provided the temperature fuse connecting structure according to the first aspect, wherein the hot-melt metal can be set to a different hot-melt fracture temperature by modifying a composition component as necessary. It has a fuse connection structure.
According to a sixth aspect of the present invention, there is provided the thermal fuse coupling structure according to the first aspect, wherein at least one annular concave neck portion is provided in the center of the hot-melt metal. .
According to a seventh aspect of the present invention, there is provided the thermal fuse connection structure according to the first aspect, wherein one end of the hot-melt metal has an enlarged nut shape.

The invention of claim 8 includes two terminals, a hot-melt metal,
The two terminals are fixed in the wiring of the circuit, and the two free ends of the two terminals are each provided with an opening that can be penetrated, and in the state where no external force is applied, two of the two terminals are provided. Maintain a constant distance between the free ends,
The hot-melt metal is elongated and has the property of melting and tearing when the temperature rises due to heat,
At the time of combination, the hot molten metal passes through the opening of the free ends of the two terminals and presses the hot molten metal in a rivet manner, so that the hot molten metal is free in the two separate terminals. A structure for connecting a thermal fuse, characterized in that the ends are electrically connected, the free ends of the two terminals are inward and in contact with each other, and the free ends of the two terminals are provided with an elastic force that separates outward. It is said.
According to a ninth aspect of the present invention, there is provided the thermal fuse connecting structure according to the eighth aspect, wherein the opening of the two terminals is a sealing opening.
According to a tenth aspect of the present invention, there is provided the thermal fuse connecting structure according to the eighth aspect, wherein the opening of the two terminals is an open hole.
According to an eleventh aspect of the present invention, in the connecting structure for a thermal fuse according to the eighth aspect, at least one of the two terminals is made of a conductive material having elasticity, thereby forming a terminal having elasticity. And a thermal fuse connection structure.
According to a twelfth aspect of the present invention, there is provided the thermal fuse connecting structure according to the eighth aspect, wherein an elastic part is installed in at least one of the two terminals, and the elasticity of the elastic part is used to free the two terminals. The ends have a connecting structure of thermal fuses characterized in that they retain elasticity to be separated from each other.
According to a thirteenth aspect of the present invention, there is provided the temperature fuse connecting structure according to the eighth aspect, wherein the hot-melt metal can be set to a different hot-melt fracture temperature by modifying the composition component as necessary. It has a fuse connection structure.
According to a fourteenth aspect of the present invention, there is provided the thermal fuse coupling structure according to the eighth aspect, wherein one end of the hot-melt metal is in the form of an enlarged nut.

The invention of claim 15 includes two terminals, a hot-melt metal, an elastic connecting part,
The two terminals are fixed in the wiring of the circuit, and at least one of the two terminals is provided with an openable hole at the free end, and the two terminals are not subjected to external force. Maintain a constant distance between the two free ends of
The hot-melt metal is elongated and has the property of melting and tearing when the temperature rises due to heat,
The elastic connecting part connects the two terminals, whereby the two terminals are energized, the elastic connecting part includes two connecting rod parts, and the end of at least one connecting rod part can be penetrated. Forming an open hole,
At the time of combination, the appropriate length of the molten metal passes through the opening at the end of the connecting rod part of the first elastic connecting part and the opening at the free end of the first terminal, and is used for rivet joining. Compressing the hot molten metal in a manner, whereby both ends of the hot molten metal are expanded, the first connecting rod part of the elastic connecting part and the free end of the first terminal are joined together, Separately, the second connecting rod part of the elastic connecting part is pressed, contacted and fixed toward the first elastic connecting part, the two terminals are electrically connected, and the two connecting parts of the elastic connecting part are The ends of the connecting rod parts are in contact with each other and generate a resilient force toward the outside.
According to a sixteenth aspect of the present invention, in the thermal fuse connecting structure according to the fifteenth aspect, a bendable fixing part is installed at the second free end of the terminal,
The second connecting rod part of the elastic connecting part is rod-shaped,
The second connecting rod part of the elastic connecting part is pressed and brought into contact with the first connecting rod part, and the fixing part of the second terminal is covered by the end of the second connecting rod part. A thermal fuse connection structure characterized by being fixed to a crack.
According to a seventeenth aspect of the present invention, there is provided the thermal fuse connection structure according to the fifteenth aspect, wherein the first opening of the two terminals is a sealing opening.
The invention according to claim 18 is the connecting structure for thermal fuses according to claim 15, wherein the first opening of the two terminals is an open hole. .
According to a nineteenth aspect of the present invention, there is provided the temperature fuse connecting structure according to the fifteenth aspect, wherein the hot-melt metal can be set to a different hot-melt fracture temperature by modifying the composition component as necessary. It has a fuse connection structure.
According to a twentieth aspect of the present invention, in the connecting structure for a thermal fuse according to the fifteenth aspect, the elastic connecting part is made of a conductive material.

  The combined structure and operation relationship of the present invention certainly have practical functions and effects, and is an unprecedented new design, and has functionality and inventive step.

FIG. 3 is an exploded cross-sectional view of the embodiment of the present invention, FIG. 4 is a combined cross-sectional view of the embodiment of the present invention, and when the molten metal is heated when the current is overloaded or the circuit is overheated, the temperature rises and the melt breaks. As shown in FIG. 5 which is a combined sectional view of the embodiment of the present invention showing how the free ends of the two terminals are disconnected from each other and the circuit is turned off, the thermal fuse of the present invention The connection structure includes two terminals 11 and 12 and a hot-melt metal 13.
The two terminals 11 and 12 are fixed in the wiring of the circuit, and through-holes 111 and 121 are provided at the two free ends of the two terminals 11 and 12, respectively. The apertures 111 and 121 can be sealed apertures or open apertures. When no external force is applied, the apertures 111 and 121 are fixed between the two free ends of the two terminals 11 and 12. The interval distance (ΔS1) is held. At least one of the two terminals 11 and 12 is made of a conductive material having elasticity, and is a terminal having elasticity.
The hot-melt metal 13 is elongated and has the property of being melted and torn when it receives heat and rises in temperature. The hot-melt metal 13 can change the combination of materials as necessary, and can set different hot-melt fracture temperatures.
At least one annular concave neck portion 131 is installed in the center of the elongated shape of the hot-melt metal 13, and the cross section of the annular concave neck portion 131 is smaller than the cross section of other portions.

At the time of combination, the molten metal 13 having an appropriate length is passed through the openings 111 and 121 at the free ends of the two terminals 11 and 12 and pressed against both ends of the molten metal 13 by a rivet joining method. In this way, both ends of the hot-melt metal 13 are enlarged and fixed to the free ends of the two terminals 11 and 12 to form an electrical connection. The free ends of the two terminals 11 and 12 in the embodiment are not in contact with each other, and the free ends of the two elastic terminals 11 and 12 have a constant distance (ΔS2). However, as shown in FIG. 4, the fixed distance (ΔS2) is smaller than or equal to the fixed distance (ΔS1) (see FIG. 7 which is a three-dimensional combination diagram of the embodiment of the present invention).
In the implementation of the present invention, when the current is overloaded, the circuit is overheated, or the environmental temperature of use is too high, the hot molten metal 13 is heated and the temperature rises. The smallest annular concave neck 131 has the highest temperature, and the annular concave neck 131 melts and tears first. Thus, the free ends of the two terminals 11 and 12 are disconnected from each other, and the circuit is turned off (see FIG. 5).
As shown in FIG. 6 which is a three-dimensional display diagram of another shape of the hot melt metal 14 of the embodiment of the present invention, one end of the hot melt metal 14 expands to form a nut shape, and at the center of the hot melt metal 14 is at least One annular concave neck 141 is installed. The combination of the hot-melt metal 14 and the functions and effects achieved thereby are the same as those of the hot-melt metal 13 shown in FIG.

Furthermore, FIG. 8 which is an exploded sectional view of the second embodiment of the present invention, FIG. 9 which is a combined sectional view of the second embodiment of the present invention, the temperature rises due to the heat of the molten metal when the current is overloaded or the circuit is overheated. As shown in FIG. 10, which is a combined sectional view of the second embodiment of the present invention showing that the free ends of the two terminals are disconnected from each other and the circuit is turned off. The connection structure of the thermal fuse of the present invention mainly includes two terminals 11 and 12 and a hot-melt metal 15.
The two terminals 11 and 12 are fixed in the wiring of the circuit, and through-holes 111 and 121 are provided at the two free ends of the two terminals 11 and 12, respectively. The apertures 111 and 121 can be sealed apertures or open apertures. When no external force is applied, the apertures 111 and 121 are fixed between the two free ends of the two terminals 11 and 12. The interval distance (ΔS3) is held. At least one of the two terminals 11 and 12 is made of a conductive material having elasticity, and is a terminal having elasticity. Alternatively, at least one of the two terminals 11 and 12 is provided with an elastic part (not shown), and the free ends of the two terminals 11 and 12 retain the elasticity of separating from each other by using the elasticity of the elastic part. To do.
The hot-melt metal 15 is long and thin, and has a property of melting and tearing when the temperature rises. The hot-melt metal 15 can change the combination of materials as necessary, and can set different hot-melt fracture temperatures.

At the time of combination, the molten metal 15 having an appropriate length is passed through the openings 111 and 121 at the free ends of the two terminals 11 and 12 and pressed against both ends of the molten metal 13 by rivet bonding. In this way, both ends of the hot molten metal 15 are enlarged, and the free ends of the two separated terminals 11 and 12 are electrically connected. As shown in FIG. 9, the free ends of the two terminals 11 and 12 in the embodiment are inwardly in close contact with each other, and the free ends of the two elastic terminals 11 and 12 are outward. It has elasticity to leave (see FIG. 12 which is a three-dimensional combination diagram of the embodiment of the present invention).
As shown in FIG. 11 which is a three-dimensional display diagram of another shape of the hot-melt metal 16 according to the second embodiment of the present invention, one end of the hot-melt metal 16 expands to form a nut shape, and the hot-melt metal 16 is combined. Is the same as the hot-melt metal 15 shown in FIG.
In the implementation of the present invention, when the current is overloaded, the circuit is overheated, or the ambient temperature of use is too high, the hot molten metal 15 receives heat and rises in temperature and reaches a set temperature. The 12 free ends lose the restriction due to the riveting and clamping of the hot molten metal 15 and bounce outward due to the elasticity, and the free ends of the two terminals 11 and 12 are separated from each other and become non-connected. Thus, the circuit is turned off (see FIG. 10).

Next, FIG. 13 is a three-dimensional exploded view of the third embodiment of the present invention, FIG. 14 is a three-dimensional combination diagram of the third embodiment of the present invention, FIG. 15 is a three-dimensional combination sectional view of the third embodiment of the present invention, This book shows how the molten metal is heated when the overload or the circuit is overheated, the temperature rises, the melt breaks, the free ends of the two terminals become disconnected from each other, and the circuit is turned off. As shown in FIG. 16 which is a combined sectional view of the third embodiment of the invention, the connecting structure of the thermal fuse of the present invention mainly includes two terminals 11, 12, a hot melt metal 17 and an elastic connecting part 18.
The two terminals 11 and 12 are fixed in the wiring of the circuit, and through holes are provided at the two free ends of the two terminals 11 and 12, respectively. In this embodiment, an openable hole 121 is provided at the free end of the first terminal 12, and the open hole 121 can be a sealing opening or an opening opening. A bendable fixing part 112 is installed at the free end of the second terminal 11. In a state where no external force is received, a constant distance (ΔS4) is maintained between the two free ends of the two terminals 11 and 12.
The hot-melt metal 17 is elongated and has the property of being melted and torn when it receives heat and rises in temperature. The hot-melt metal 17 can change the combination of materials as necessary, and can set different hot-melt fracture temperatures. One end of the hot-melt metal 17 can be enlarged and formed into a nut shape.
The elastic connecting part 18 is used for connecting the two terminals 11 and 12, whereby the two terminals 11 and 12 are electrically connected. The elastic part 18 is made of a conductive material and includes two connecting rod parts 181 and 182. An at least one connecting rod part end portion is formed with an openable hole. In this embodiment, the through hole 1810 is provided at the end of the first connecting rod part 181, and the second connecting rod part 182 has a rod shape.

At the time of combination, the hot molten metal 17 having an appropriate length is passed through the opening 1810 at the end of the first connecting rod part 181 of the elastic connecting part 18 and the opening 121 at the free end of the first terminal 12. Then, both ends of the hot-melt metal 17 are pressed by a rivet joining method. Thus, both ends of the hot-melt metal 17 are enlarged, and the first connecting rod part 181 of the elastic connecting part 18 and the free end of the first terminal 12 are joined to each other. Separately, the second connecting rod part 182 of the elastic connecting part 18 is pushed into contact with the first connecting rod part 181, so that the fixing part 112 at the free end of the second terminal 11 is The end of the second connecting rod part 182 is wrapped and fixed and connected. In this way, the two terminals 11 and 12 are electrically connected, and at this time, the ends of the two connecting rod parts 181 and 182 of the elastic connecting part 18 come into contact with each other to generate outward elasticity (see FIG. 16). ).
In the implementation of the present invention, as shown in FIG. 15, when the current is overloaded, the circuit is overheated, or the environmental temperature of use is too high, the hot molten metal 17 receives heat and the temperature rises and reaches a set temperature. The first connecting rod part 181 of the elastic connecting part 18 loses the restriction due to the riveting and clamping of the hot molten metal 17 and bounces outward due to elasticity, and the free ends of the two terminals 11 and 12 are mutually connected. The circuit is separated and the circuit is turned off (see FIG. 16).

It is combination sectional drawing which shows the ON state of a well-known structure. It is combination sectional drawing which shows the OFF (OFF) state of a well-known structure. It is an exploded sectional view of an example of the present invention. It is combination sectional drawing of this invention Example. When the current is overloaded or the circuit is overheated, the molten metal is heated, the temperature rises, the melt breaks, the free ends of the two terminals become disconnected from each other, and the circuit is turned off It is a combination sectional view of the example of the present invention shown. It is a three-dimensional display figure of another kind of hot-melt metal of an example of the present invention. It is a three-dimensional combination diagram of an embodiment of the present invention. It is decomposition | disassembly sectional drawing of 2nd Example of this invention. It is combination sectional drawing of 2nd Example of this invention. When the current is overloaded or the circuit is overheated, the molten metal is heated, the temperature rises, the melt breaks, the free ends of the two terminals become disconnected from each other, and the circuit is turned off (OFF) It is combination sectional drawing of the 2nd Example of this invention shown. It is a three-dimensional display figure of the different kind shape of the hot-melt metal of the second embodiment of the present invention. It is a three-dimensional combination diagram of the second embodiment of the present invention. It is a three-dimensional exploded view of the third embodiment of the present invention. It is a three-dimensional combination diagram of the third embodiment of the present invention. It is a solid combination sectional view of the third embodiment of the present invention. When the current is overloaded or the circuit is overheated, the molten metal is heated, the temperature rises, the melt breaks, the free ends of the two terminals become disconnected from each other, and the circuit is turned off (OFF) It is combination sectional drawing of the 3rd Example of this invention shown.

Explanation of symbols

11 Terminal 111 Perforated 112 Fixed part 12 Terminal 121 Perforated 13 Hot melted metal 131 Annular concave neck 14 Hot melted metal 141 Annular concave neck 15 Hot melted metal 16 Hot melted metal 17 Hot melted metal 18 Elastic connecting part 181 Connecting rod part 1810 Opening hole 182 Connecting rod part ΔS1 Constant spacing distance ΔS2 Constant spacing distance ΔS3 Constant spacing distance ΔS4 Constant spacing distance 201 Contact elastic piece 202 First terminal 203 First conduction point 204 Second terminal 205 Second Conduction point

Claims (20)

2 terminals, including hot molten metal,
The two terminals are fixed in the wiring of the circuit, and the two free ends of the two terminals are each provided with an opening that can be penetrated, and in the state where no external force is applied, two of the two terminals are provided. Maintain a constant distance between the free ends,
The hot-melt metal is elongated and has the property of melting and tearing when the temperature rises due to heat,
At the time of combination, the hot molten metal passes through the opening of the free ends of the two terminals and presses the hot molten metal in a rivet manner, so that the hot molten metal is free in the two separate terminals. A structure for connecting a thermal fuse, characterized in that it is fixed to an end and is electrically connected, the free ends of the two terminals are not in contact with each other, and the free ends of the two terminals have a fixed distance.   2. The thermal fuse connection structure according to claim 1, wherein the opening of the two terminals is a sealing opening.   2. The thermal fuse connection structure according to claim 1, wherein the opening of the two terminals is an open hole.   2. The structure for connecting a thermal fuse according to claim 1, wherein at least one of the two terminals is made of a conductive material having elasticity, thereby forming a terminal having elasticity. .   2. The structure for connecting a thermal fuse according to claim 1, wherein the hot-melt metal can be set to a different hot-melt fracture temperature by modifying a composition component as necessary.   2. The thermal fuse connection structure according to claim 1, wherein at least one annular concave neck portion is provided in the center of the hot-melt metal.   2. The structure for connecting a thermal fuse according to claim 1, wherein one end of the hot-melt metal is in the form of an enlarged nut. 2 terminals, including hot molten metal,
The two terminals are fixed in the wiring of the circuit, and the two free ends of the two terminals are each provided with an opening that can be penetrated, and in the state where no external force is applied, two of the two terminals are provided. Maintain a constant distance between the free ends,
The hot-melt metal is elongated and has the property of melting and tearing when the temperature rises due to heat,
At the time of combination, the hot molten metal passes through the opening of the free ends of the two terminals and presses the hot molten metal in a rivet manner, so that the hot molten metal is free in the two separate terminals. A structure for connecting a thermal fuse, characterized in that the ends are electrically connected, the free ends of the two terminals are inward and in contact with each other, and the free ends of the two terminals are provided with an elastic force that separates outward. .   9. The thermal fuse connection structure according to claim 8, wherein the opening of the two terminals is a sealing opening.   9. The thermal fuse connection structure according to claim 8, wherein the opening of the two terminals is an open hole.   9. The thermal fuse connection structure according to claim 8, wherein at least one of the two terminals is made of a conductive material having elasticity, thereby forming a terminal having elasticity. .   9. The thermal fuse connecting structure according to claim 8, wherein an elastic part is installed on at least one of the two terminals, and the elastic ends of the two terminals are utilized, and the free ends of the two terminals are separated from each other. A structure for connecting thermal fuses, characterized by holding   9. The structure for connecting a thermal fuse according to claim 8, wherein the hot-melt metal can be set to a different hot-melt fracture temperature by modifying a composition component as necessary.   9. The connecting structure for a thermal fuse according to claim 8, wherein one end of the hot-melt metal is in the form of an enlarged nut. Includes 2 terminals, hot melt metal, elastic connecting parts,
The two terminals are fixed in the wiring of the circuit, and at least one of the two terminals is provided with an openable hole at the free end, and the two terminals are not subjected to external force. Maintain a constant distance between the two free ends of
The hot-melt metal is elongated and has the property of melting and tearing when the temperature rises due to heat,
The elastic connecting part connects the two terminals, whereby the two terminals are energized, the elastic connecting part includes two connecting rod parts, and the end of at least one connecting rod part can be penetrated. Forming an open hole,
At the time of combination, the appropriate length of the molten metal passes through the opening at the end of the connecting rod part of the first elastic connecting part and the opening at the free end of the first terminal, and is used for rivet joining. Compressing the hot molten metal in a manner, whereby both ends of the hot molten metal are expanded, the first connecting rod part of the elastic connecting part and the free end of the first terminal are joined together, Separately, the second connecting rod part of the elastic connecting part is pressed, contacted and fixed toward the first elastic connecting part, the two terminals are electrically connected, and the two connecting parts of the elastic connecting part are The connecting structure of the thermal fuse, wherein the connecting rod parts end portions come into contact with each other to generate outward elasticity. The connecting structure of the thermal fuse according to claim 15, wherein a bendable fixing part is installed at the second free end of the terminal,
The second connecting rod part of the elastic connecting part is rod-shaped,
The second connecting rod part of the elastic connecting part is pressed and brought into contact with the first connecting rod part, and the fixing part of the second terminal is covered by the end of the second connecting rod part. A thermal fuse connection structure characterized by being fixed to a crack.   The thermal fuse connection structure according to claim 15, wherein the first opening of the two terminals is a sealing opening.   The thermal fuse connection structure according to claim 15, wherein the first opening of the two terminals is an open hole.   The thermal fuse connection structure according to claim 15, wherein the hot-melt metal can be set to a different hot-melt fracture temperature by modifying a composition component as necessary.   The thermal fuse connection structure according to claim 15, wherein the elastic connecting part is made of a conductive material.

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