TWI701694B - Fuse resistor assembly and method of manufacturing the same - Google Patents

Abstract

Disclosed is a fuse resistor assembly including a resistor including a resistor rod, a first resistor cap and a second resistor cap located on both ends of the resistor rod, a resistance wire connecting the first resistor cap to the second resistor cap, and a conductive resistance lead wire connected to the first resistor cap and a fuse including a fuse rod, a first fuse cap and a second fuse cap located on both ends of the fuse rod, a fusible body formed on the fuse rod and configured to electrically connect the first fuse cap to the second fuse cap and broken by an overcurrent, a conductive first fuse lead wire connected to the first fuse cap, and a conductive second fuse lead wire connected to the second fuse cap.

Description

Fuse resistor assembly and method for manufacturing fuse resistor assembly

[Cross-reference of related applications]

This application claims the priority and rights of Korean Patent Application No. 2018-0131327 filed on October 30, 2018, and the entire disclosure of the case is incorporated herein by reference.

The present invention relates to a fuse resistor assembly, and more specifically, to a fuse resistor assembly formed by connecting a fuse to a resistor and a manufacturing method thereof.

Generally speaking, micro fuses are installed at the power input terminals of electronic products such as televisions, video cassette recorders and the like to prevent damage to the circuit by breaking the circuit when an overcurrent flows in the circuit And the eruption of fire at the base plate. The micro-fuse acts as a circuit breaker due to its fusing performance under abnormal conditions such as overload and the like.

In the case of fuses, copper, which has a relatively low unique specific resistance and a relatively high temperature coefficient and melting point compared with other metals, is used as the material for forming the fusible element layer, so even when the rated current becomes 10A or more At high currents, the current can still be applied stably while the layer is steadily fusible under excessive currents higher than high currents, so as to replace the existing fuses in household appliances such as large TVs and monitors that use high currents And similar ones.

However, in a general fuse resistor assembly, the resistor and the fuse are connected in a straight line, so that its size is large and the coupling between the resistor and the fuse can be easily achieved by the straight connection due to the straight connection Damaged by external impact, so that there is a problem of poor durability.

The present invention is directed to providing a fuse resistor assembly that can maintain a firm coupling between the resistor and the fuse while connecting the resistor and the fuse in series.

According to one aspect of the present invention, there is provided a fuse resistor assembly including: a resistor including a resistor rod, a first resistor cap and a second resistor cap positioned on two ends of the aforementioned resistor rod A resistance wire connecting the first resistor cap to the second resistor cap, and a conductive resistance lead connected to the first resistor cap; and a fuse, which includes a fuse bar, and is positioned on the fuse The first fuse cap and the second fuse cap on the two ends of the rod are coated on the fuse rod and are assembled to electrically connect the first fuse cap to the second fuse cap and use The fusible body destroyed by the overcurrent, the conductive first fuse lead connected to the first fuse cap, and the conductive second fuse lead connected to the second fuse cap. Here, the aforementioned resistor bar includes a hollow portion, and the aforementioned hollow portion has an open side and another closed side in the longitudinal direction. The aforementioned second resistor cap includes a cap hole corresponding to the hollow section of the aforementioned hollow portion. In the aforementioned fuse, the aforementioned fuse bar, the aforementioned first fuse cap, the aforementioned second fuse cap, and the aforementioned first fuse lead are inserted along the aforementioned hollow portion and the aforementioned cap hole, while the aforementioned first fuse lead Bent so that one end is connected to the first fuse cap and the other end is connected to the second resistor cap.

The other end of the first fuse lead may be connected to the second resistor cap using at least one of spot welding, laser welding and welding.

The first fuse lead may include an S-shaped bent structure, one end of the S-shaped lead may be connected to the first fuse cap, and the other end of the S-shaped lead may be connected to the second resistor cap.

The fuse resistor assembly may further include: a fuse protection layer that covers the fuse bar, the first fuse cap, the second fuse cap, and the fusible body; and a fuse insulation layer that covers the first fuse cap. A fuse lead and the aforementioned second fuse lead insulate the current flowing therethrough from external components.

The fusible body can be formed by coating the surface of the fuse rod with tin, and can be cut according to a trim pattern to adjust the melting time of the fusible body.

The aforementioned trimming pattern can be cut by one or more of different number of cutting points and cutting shapes.

The fuse resistor assembly may further include: a filling layer that fills the hollow part of the resistor bar, the fuse is inserted into the hollow part; and a protection tube that encloses the resistor filled with the filling layer.

According to another embodiment of the present invention, a method of manufacturing a fuse resistor assembly is provided. The foregoing method includes: manufacturing a resistor and a fuse connected to the resistor; and connecting the resistor to the fuse in series by inserting the fuse into a hollow portion of the resistor. Here, the aforementioned manufacturing of the aforementioned fuse includes: coating a fuse rod formed in the longitudinal direction with a fusible body; coupling a conductive first fuse cap and a second fuse cap, wherein the aforementioned fuse rod The two ends are coated with the fusible body; the conductive first fuse lead is connected to one end of the first fuse cap, and the conductive second fuse lead is connected to the second fuse cap One end of the fuse rod, the first fuse cap, the second fuse cap, and the fusible body are coated with a fuse protection layer to protect the fuse rod, the first fuse cap, and the fusible body The second fuse cap and the fusible body; and the first fuse lead and the second fuse lead are coated with a fuse insulating layer to insulate the current flowing therethrough from external components.

The aforementioned connecting the aforementioned resistor to the aforementioned fuse may include: bending one end of the aforementioned first fuse lead connected to the aforementioned first fuse cap at 180 degrees; and connecting the aforementioned fuse rod and the aforementioned first fuse cap The second fuse cap and the bent first fuse lead are inserted into the hollow portion; and the other end of the first fuse lead connected to the second resistor cap is connected 90 degrees or more .

The foregoing connecting the other end of the first fuse lead to the second resistor cap may include connecting the first fuse lead to the second resistor using at least one of spot welding, laser welding, and welding器盖。 Cap.

The aforementioned manufacturing of the aforementioned fuse may further include after coupling the aforementioned first fuse cap and the aforementioned second fuse cap to the two ends of the aforementioned fuse bar, cutting the aforementioned fusible body to adjust the melting of the aforementioned fusible body time.

The cutting of the fusible body may include cutting the fusible body with one or more of different numbers of cutting points and cutting shapes.

The foregoing method may further include: connecting the fuse to the hollow portion by inserting the fuse into the hollow portion of the resistor, and then filling the hollow portion of the resistor with a filling layer; and using protection The tube seals the resistor filled with the filling layer.

Since the description of the present invention is only an embodiment for structural and functional description, the scope of the present invention should not be interpreted as being limited by the embodiments described herein. That is, since the embodiments can be variously changed and can have various shapes, the scope of the present invention should be understood to include equivalents capable of implementing its technical concept.

When it is stated that a component is "connected" to another component, it should be understood that one component can be directly connected to another component, but another component can exist in between. On the other hand, when it is stated that a component is "directly connected" to another component, it should be understood that no other component exists in between.

Unless otherwise defined, all terms used herein have the same meaning as generally understood by those who are familiar with the art. The terms defined in the general dictionary should be interpreted as consistent with the contextual meaning of the relevant technology and cannot be interpreted as an ideal or excessively formal meaning, unless clearly defined in the present invention.

FIG. 1 is a cross-sectional view of a fuse resistor assembly 10 according to an embodiment of the present invention.

Referring to FIG. 1, the fusing resistor assembly 10 includes a resistor 100 and a fuse 200.

The resistor 100 includes a conductive resistance component and restrains inrush current.

The resistor 100 includes a resistor bar, a first resistor cap and a second resistor cap positioned on both ends of the resistor bar, a resistance wire connecting the first resistor cap to the second resistor cap, and a connection Conductive resistance lead to the first resistor cap.

2A is a perspective view illustrating the resistor 100 shown in FIG. 1, and FIG. 2B is a cross-sectional view illustrating the resistor 100 shown in FIG. 1.

2A and 2B, the resistor 100 may include a resistor bar 110, a first resistor cap 120, a second resistor cap 130, a resistance wire 140, and a resistance lead 150.

The resistor bar 110 may include a cylindrical or prismatic shape, and may be formed of a ceramic material. The resistor bar 110 includes a hollow portion 110-1 formed in the longitudinal direction. The hollow portion 110-1 has a structure formed by one open side and the other closed side of the resistor bar 110 so that a hole is formed therein to a certain depth. In FIG. 2A, the hollow section perpendicular to the longitudinal direction of the hollow portion 110-1 is shown as a circular shape but is only an example, and may be a polygonal shape (for example, quadrilateral, pentagon, hexagon, octagon) Shape, and the like).

The first resistor cap 120 can be inserted into and coupled to one end of the resistor rod 110. For this purpose, the first resistor cap 120 may have a cap shape in which one end of a tubular structure (for example, a cylindrical structure or a prismatic shape) is closed. The first resistor cap 120 has conductivity.

The second resistor cap 130 can also be inserted into and coupled to the other end of the resistor rod 110. For this purpose, the second resistor cap 130 may have a cap shape having a tubular structure (for example, a cylindrical structure or a prismatic shape). In particular, the second resistor cap 130 includes a cap hole 130-1 corresponding to the hollow section of the hollow portion 110-1 of the resistor bar 110. Here, unlike the first resistor cap 120, the cap hole 130-1 has a hole structure to allow the fuse 200 to be described below to be inserted even when the second resistor cap 130 is inserted into the resistor bar 110 among them. The cross-sectional structure of the cap hole 130-1 has a circular or polygonal shape to conform to the hollow cross-section of the resistor rod 110. The second resistor cap 130 may also have conductivity like the first resistor cap 120.

The resistance wire 140 is a wire for connecting the first resistor cap 120 to the second resistor cap 130 while spirally surrounding the surface of the resistor bar 110. The resistance wire 140 includes a resistance component heated by overcurrent. One end of the resistance wire 140 is connected to one side of the first resistor cap 120, and the other end of the resistance wire 140 is connected to one side of the second resistor cap 130.

The resistance lead 150 is connected to the outer side of the first resistor cap 120. The first resistance lead 150 may be connected to the first resistor cap 120 using methods such as spot welding, laser welding, welding, and the like. Unlike conventional resistors, the resistor 100 includes only one resistance lead 150.

The fuse 200 performs the function of cutting off the circuit connection caused by heat or overcurrent. The fuse 200 includes a fuse rod, a first fuse cap and a second fuse cap positioned on two ends of the fuse rod, and is coated on the fuse rod and assembled to electrically connect the first fuse cap. A fusible body connected to the second fuse cap and destroyed by overcurrent, a conductive first fuse lead connected to the first fuse cap, and a conductive second fuse connected to the second fuse cap lead. In the fuse 200, the fuse bar, the first fuse cap, the second fuse cap, and the first fuse lead are inserted along the hollow portion and the cap hole.

3A is a perspective view illustrating the fuse 200 shown in FIG. 1, and FIG. 3B is a cross-sectional view illustrating the fuse 200 shown in FIG. 1.

3A and 3B, the fuse 200 may include a fuse bar 210, a fusible body 220, a first fuse cap 230, a second fuse cap 240, a first fuse lead 250, a second fuse lead 260, A fuse protection layer (not shown) and a fuse insulation layer (not shown).

The fuse bar 210 may include a cylindrical or prismatic shape, and may be formed of a ceramic material.

The fusible body 220 is formed by coating the surface of the fuse rod 210 with a conductive film, wherein a tin layer can be formed as a fusible element on an electroplated layer formed of a nickel alloy or a copper alloy.

The trimming pattern can be formed on the corresponding surface of the fusible body 220 corresponding to the desired resistance value by cutting a film called trimming. Film cutting can be performed by laser cutting or diamond cutting.

The trimming pattern can be cut by one or more of different number of cutting points and cutting shapes. Here, the cutting shape may include a dot, a line, or a spiral shape, or may include a combination thereof.

4A and 4B are reference views illustrating the trimming pattern of the film cutting of the fusible body 220 according to the present invention. FIG. 4A illustrates a point-shaped trimming pattern, and FIG. 4B illustrates a linear-shaped trimming pattern.

Depending on the number of cutting points or the difference in cutting shape, the trimming pattern can cause a difference in the melting time of the fusible body 220 caused by overcurrent. The difference in the melting time of the fusible body 220 according to the trimming pattern will be described with reference to FIGS. 5 to 7.

5 is a reference view illustrating an example of comparing the melting time based on the number of cut points, FIG. 6 is a reference view illustrating an embodiment of comparing the melting time based on the point shape in the cut shape, and FIG. 7 is a view illustrating how the melting time is compared based on the cut shape The line shape is a reference view of another example of comparing the melting time.

Referring to Figure 5, it can be seen that as the number of cutting points used for film cutting increases, the melting time gradually decreases. Also, referring to FIG. 6, it can be seen that as the cutting point in the cutting shape for film cutting increases in the longitudinal direction, the melting time decreases. Also, referring to FIG. 7, it can be seen that as the length of the linear or spiral line among the cutting shapes used for film cutting increases, the melting time decreases. Therefore, it is possible to adjust the melting time of the fuse 200 caused by overcurrent by selecting the trimming pattern of the fusible body 220 according to the design purpose.

The first fuse cap 230 and the second fuse cap 240 are inserted into and coupled to two ends of the fuse rod 210 on which the fusible body 220 is formed. For this purpose, the first resistor cap 230 and the second fuse cap 240 may each have a cap shape in which one end of a tubular structure (for example, a cylindrical structure or a prismatic shape) is closed.

The first fuse lead 250 and the second fuse lead 260 are connected to the outer sides of the first fuse cap 230 and the second fuse cap 240, respectively. The first fuse lead 250 and the second fuse lead 260 are respectively connected to the first fuse cap 230 and the second fuse cap 240 using methods such as spot welding, laser welding, welding, and the like. Each of the first fuse lead 250 and the second fuse lead 260 has electrical conductivity.

Meanwhile, as shown in FIGS. 3A and 3B, one end A of the first fuse lead 250 is connected to one side of the first fuse cap 230 while being bent, and the other end B of the first fuse lead 250 It is connected to one side of the second resistor cap 130 while being bent. The first fuse lead 250 is bent twice in an S shape to form a structure that allows the fuse 200 to follow the hollow portion 110-1 of the resistor bar 110 forming the resistor 100 and the cap hole 130 of the second resistor cap 130 -1 is inserted and connected to the resistor 100 in series. Since the first fuse lead 250 includes an S-shaped bent structure, one end of the S-shaped lead is connected to the first fuse cap 230 and the other end of the S-shaped lead is connected to the second resistor cap 130. Here, in order to allow the fuse 200 to be connected to the resistor 100 in series, the other end of the first fuse lead 250 may be connected to the second resistor cap 130 using at least one method of spot welding, laser welding, and welding.

The fuse bar 210, the first fuse cap 230, and the second fuse cap 240 on which the fusible body 220 is formed are coated with a fuse protection layer. Therefore, the fuse protection layer protects the film of the fusible body 220 and protects the surfaces of the first fuse cap 230 and the second fuse cap 240. In addition, the fuse protection layer has an insulating function for insulating the resistor 100.

The fuse insulating layer encloses the first fuse lead 250 and the second fuse lead 260 coupled to the first fuse cap 230 and the second fuse cap 240, respectively. The fuse insulating layer covers the first fuse lead 250 and the second fuse lead 260 to insulate the current flowing through the first fuse lead 250 and the second fuse lead 260 from external components. However, the part where the first fuse lead 250 and the second resistor cap 130 are connected is excluded from being coated with a fuse insulating layer.

The fusing resistor assembly 10 uses a filling layer (not shown) to seal and protect the resistor 100 to which the fuse 200 is connected. That is, while the fuse 200 is inserted into the resistor 100, the hollow portion 110-1 of the resistor 100 is filled with the filling layer. The filling layer fills the empty space between the resistor 100 and the fuse 200 inserted into the hollow portion 110-1 of the resistor 100, and additionally closes the outer side of the resistor 100. Here, the filling layer may be formed of epoxy material or polysiloxane material.

In addition, the fusing resistor assembly 10 may include a protection tube (not shown) to protect the resistor 100 filled with the filling layer and/or the filling layer. The protective tube encloses the filling layer surrounding the resistor 100 for insulation from the outside (other components and the like).

FIG. 8 is a flowchart illustrating a method of manufacturing a fuse resistor assembly according to an embodiment of the present invention. 9A and 9B are reference views illustrating the actual operation of the process of manufacturing the fuse resistor assembly.

First, a resistor and a fuse (300) to be connected to the resistor are manufactured.

The resistor shown in FIGS. 2A and 2B may include a resistor bar, a first resistor cap, a second resistor cap, a resistance wire, and a resistance lead. The resistor is formed by manufacturing a resistor rod formed of a ceramic material and then forming a hollow portion to a certain depth in the longitudinal direction of the resistor rod. Next, the resistance lead is connected to the first resistor cap, and then the first resistor cap to which the resistance lead is connected, and the second resistor cap is connected to the two ends of the resistor bar. Here, the coupled second resistor cap includes a cap hole corresponding to the hollow section of the hollow portion in the resistor bar. Then, the first resistor cap and the second resistor cap are connected while spirally surrounding the surface of the resistor bar with a resistance wire.

Meanwhile, as shown in FIGS. 3A and 3B, the fuse may include a fuse bar, a fusible body, a first fuse cap, a second fuse cap, a first fuse lead, a second fuse lead, and a fuse. Protective layer and fuse insulation layer.

Fig. 10 is a flowchart illustrating the operation of manufacturing the fuse shown in Fig. 8.

First, a fuse rod (400) formed in the longitudinal direction is coated by a fusible body. The tin layer can be used as a fusible element formed on the electroplated layer made of nickel alloy or copper alloy on the surface of the fuse rod.

After operation S400, a pair of conductive first fuse cap and second fuse cap are coupled to the two ends of the fuse bar on which the electroplating layer is formed (402). The fuse caps may each have a cap shape in which one end of a tubular structure (for example, a cylindrical structure or a prismatic shape) is closed.

After operation 402, the fusible body is cut to adjust the melting time of the fuse (404). The operation of cutting the fusible body may include cutting the electroplated layer with one or more of the number of cutting points and the cutting shape according to the trimming pattern. Here, the cutting shape may be at least one of a dot shape, a linear shape, and a spiral shape, or may be a combination thereof. According to the trimming pattern formed by the difference in the number of cut points or the cut shape, the difference in the melting time of the electroplated layer is generated. However, operation 404 is not complete, and operation 406 may be performed after operation 402 without forming a trimming pattern on the fusible body.

After operation 404, the conductive first fuse lead is connected to one end of the first fuse cap, and the conductive second fuse lead is connected to one end of the second fuse cap (406). The first fuse lead and the second fuse lead may be connected to the first fuse cap and the second fuse cap using methods such as spot welding, laser welding, welding, and the like.

After operation 406, the fuse rod, the first fuse cap, the second cap and the fusible body are coated with the fuse protection layer to protect the elements (408). The fuse protection layer protects the film of the fusible body, protects the surfaces of the first fuse cap and the second fuse cap, and insulates the resistor and the fuse.

After operation 408, a fuse insulation layer is formed to insulate the current flowing through the first fuse lead and the second fuse lead from external components (410). The fuse insulating layer insulates the current flowing through the first fuse lead and the second fuse lead from external components (for example, resistors).

Again, after operation 300, the fuse is inserted into the hollow part of the resistor, and the resistor and the fuse are coupled in series (302). Connecting the resistor to the fuse may include connecting the resistor to the fuse using at least one of spot welding, laser welding, and welding.

FIG. 11 is a flowchart illustrating the operation of coupling the resistor and the fuse in series shown in FIG. 8.

Bend one end of the first fuse lead (connected to the first fuse cap) at 180 degrees (500). FIG. 12 is a reference view illustrating the bending state of one end and the other end of the first fuse lead. Referring to FIG. 12, the state where the end A connected to the first fuse cap is bent 180 degrees from the initial angle of the first fuse cap. However, the bending angle is an example, and the bending angle of bending can be increased or decreased based on 180 degrees.

After 500, the fuse bar, the first fuse cap, the second fuse cap, and the bent first fuse lead are inserted into the hollow portion (502). In order to allow the fuse bar, the first fuse cap, the second fuse cap, and the bent first fuse lead to be inserted into the hollow portion of the resistor cap, it is necessary to make the hollow section of the hollow portion have a shape capable of containing the fuse. The cross-sectional area of the part. Furthermore, it is necessary to fasten the depth of the hollow portion, which can allow the entire outward shape of the first fuse cap, the second fuse cap and the bent first fuse lead forming the fuse to be insertable.

After operation 502, the other end of the first fuse lead connected to the second resistor cap is bent 90 degrees or more, and is connected to the second resistor cap (504). Referring to FIG. 12, the state where the other end B connected to the second fuse cap is bent 90 degrees or more from the initial angle of the second fuse cap is illustrated. However, the bending angle is an example, and the bending angle of bending can be increased or decreased based on 90 degrees. The other end of the first fuse lead and the second resistor cap are connected by at least one of spot welding, laser welding and welding.

Once again, after operation 302, the hollow part of the resistor inserted into the fuse is filled with a filling layer, and the outside of the resistor is surrounded by the filling layer (304). The filling layer fills the empty space between the resistor and the fuse inserted in the hollow portion of the resistor, and surrounds the outer side of the resistor. Here, as the charge layer, a charge layer formed of epoxy resin material or silicone material can be used.

After operation 304, a protective tube is used to seal the resistor filled with the filling layer (306). The protective tube encloses the filling layer to prevent the filling layer filling the hollow portion of the resistor or surrounding the outer side of the resistor from being damaged. The protective tube may be formed through injection molding or molding using a tube.

According to an embodiment of the present invention, the fuse bar, the first fuse cap, the second fuse cap, and the first fuse lead, which are connected to the fuse and are also components of the fuse, are inserted into the hollow portion of the resistor , One end of the first fuse lead is connected to the first fuse cap while being bent, and the other end of the first fuse lead is connected to the second fuse cap while being bent, so as to form a fuse to be inserted into the resistor The structure is connected in series. Therefore, the volume of the fusing resistor assembly including the resistor and the fuse can be minimized, and the durability of the fusing resistor assembly can be improved regardless of the volume reduction.

In addition, the trimming pattern is formed on the fusible body formed in the fuse in order to sufficiently adjust the melting time of the fuse resistor component caused by overcurrent.

Although exemplary embodiments of the present invention have been described above and illustrated in the drawings, the present invention is not limited to the specific embodiments described above, and various modifications can be made by those who are generally familiar with the art. Depart from the essence of the present invention claimed by the scope of patent application and should not be understood as being separated from the technical concept or prospect of the present invention.

10: Fuse resistor assembly 100: resistor 110: Resistor rod 110-1: Hollow part 120: first resistor cap 130: second resistor cap 130-1: cap hole 140: Resistance wire 150: Resistance lead 200: Fuse 210: Fuse Rod 220: Fusible body 230: first fuse cap 240: second fuse cap 250: first fuse lead 260: second fuse lead S300: Operation S302: Operation S304: Operation S306: Operation S400: Operation S402: Operation S404: Operation S406: Operation S408: Operation S410: Operation S500: Operation S502: Operation S504: Operation A: End B: end

By describing the exemplary embodiments of the present invention in detail with reference to the accompanying drawings, the above and other objectives, features and advantages of the present invention will become more apparent to those skilled in the art.

Fig. 1 is a cross-sectional view of a fuse resistor assembly according to an embodiment of the present invention.

FIG. 2A is a perspective view illustrating the resistor shown in FIG. 1. FIG.

FIG. 2B is a cross-sectional view illustrating the resistor shown in FIG. 1. FIG.

FIG. 3A is a perspective view illustrating the fuse shown in FIG. 1. FIG.

FIG. 3B is a cross-sectional view illustrating the fuse shown in FIG. 1. FIG.

4A and 4B are reference views illustrating the trimming pattern formed by cutting the thin film of the fusible body according to the present invention.

FIG. 5 is a reference view illustrating an example of comparing the melting time according to the number of cutting points.

FIG. 6 is a reference view illustrating an example of comparing the melting time according to the point shape in the cut shape.

FIG. 7 is a reference view illustrating another example of comparing the melting time according to the line shape among the cut shapes.

FIG. 8 is a flowchart illustrating a method of manufacturing a fuse resistor assembly according to an embodiment of the present invention.

9A and 9B are reference views illustrating the actual operation of the process of manufacturing the fuse resistor assembly.

Fig. 10 is a flowchart illustrating the operation of manufacturing the fuse shown in Fig. 8.

FIG. 11 is a flowchart illustrating the operation of coupling the resistor and the fuse in series shown in FIG. 8.

FIG. 12 is a reference view illustrating the bending state of one end and the other end of the first fuse lead.

10: Fuse resistor assembly

100: resistor

200: Fuse

Claims (13)

A fuse resistor assembly comprising: a resistor including a resistor rod, a first resistor cap and a second resistor cap positioned on two ends of the aforementioned resistor rod, and connecting the aforementioned first resistor cap A resistance wire to the second resistor cap, and a conductive resistance lead connected to the first resistor cap; and a fuse, which includes a fuse rod, and a first located on both ends of the fuse rod A fuse cap and a second fuse cap, a fusible body coated on the fuse rod and assembled to electrically connect the first fuse cap to the second fuse cap and destroyed by overcurrent, The conductive first fuse lead connected to the first fuse cap and the conductive second fuse lead connected to the second fuse cap, wherein the resistor bar includes a hollow portion, and the hollow portion is in the longitudinal direction The upper part has an open side and another closed side, wherein the second resistor cap includes a cap hole corresponding to the hollow section of the hollow portion, and in the fuse, the fuse bar and the first fuse cap , The second fuse cap and the first fuse lead are inserted along the hollow portion and the cap hole, while the first fuse lead is bent so that one end thereof is connected to the first fuse cap and the other The end is connected to the aforementioned second resistor cap. The fuse resistor assembly according to claim 1, wherein the other end of the first fuse lead is connected to the second resistor cap using at least one of spot welding, laser welding, and welding. The fuse resistor assembly according to claim 1, wherein the first fuse lead includes an S-shaped bent structure, one end of the S-shaped bent structure is connected to the first fuse cap, and the other of the S-shaped bent structure One end is connected to the aforementioned second Resistor cap. The fuse resistor assembly described in claim 1, further comprising: a fuse protection layer covering the fuse bar, the first fuse cap, the second fuse cap, and the fusible body; and a fuse An insulating layer covers the first fuse lead and the second fuse lead to insulate the current flowing therethrough from external components. The fuse resistor assembly described in claim 1, wherein the fusible main system is formed by coating the surface of the fuse rod with tin element, and is cut according to a trim pattern to adjust the melting time of the fusible main body. The fusing resistor assembly according to claim 5, wherein the trimming pattern is cut by one or more of different number of cutting points and cutting shapes. The fuse resistor assembly described in claim 1, further comprising: a filling layer that fills the hollow part of the resistor bar, the fuse is inserted into the hollow part; and a protection tube which is enclosed and filled with the hollow part The aforementioned resistor of the filling layer. A method of manufacturing a fuse resistor assembly, which includes the following steps: manufacturing a resistor and a fuse connected to the resistor; and connecting the resistor in series by inserting the fuse into the hollow part of the resistor Connecting to the aforementioned fuse, wherein the aforementioned manufacturing of the aforementioned fuse includes: coating a fuse rod formed in the longitudinal direction with a fusible body; coupling a conductive first fuse cap and a second fuse cap, wherein The two ends of the fuse bar are coated with the fusible body; the conductive first fuse lead is connected to one end of the first fuse cap, and the conductive second fuse lead is connected to the first fuse cap. Two ends of the fuse cap End; coating the fuse rod, the first fuse cap, the second fuse cap, and the fusible body with a fuse protection layer to protect the fuse rod, the first fuse cap, and the second The fuse cap and the fusible body; and the first fuse lead and the second fuse lead are coated with a fuse insulation layer to insulate the current flowing therethrough from external components. The method according to claim 8, wherein the connecting the resistor to the fuse includes: bending one end of the first fuse lead connected to the first fuse cap at 180 degrees; The wire rod, the first fuse cap, the second fuse cap, and the bent first fuse lead are inserted into the hollow portion; and another part of the first fuse lead connected to the second resistor cap One end is connected at 90 degrees or above. The method according to claim 9, wherein the connecting the other end of the first fuse lead to the second resistor cap comprises using at least one of spot welding, laser welding and welding to connect the first The fuse lead is connected to the aforementioned second resistor cap. The method according to claim 10, wherein the manufacturing of the fuse further comprises coupling the first fuse cap and the second fuse cap to the two ends of the fuse rod, and then cutting the fusible Body to adjust the melting time of the aforementioned fusible body. The method described in claim 11, wherein the cutting of the fusible body includes cutting the fusible body with one or more of different numbers of cutting points and cutting shapes. The method according to claim 8, further comprising: connecting the fuse to the hollow portion by inserting the fuse into the hollow portion of the resistor, and then filling the resistor with a filling layer The hollow portion; and the use of a protective tube to seal the resistor filled with the filling layer.

Images