KR20130114985A - High voltage fuse - Google Patents

High voltage fuse Download PDF

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Publication number
KR20130114985A
KR20130114985A KR1020120037484A KR20120037484A KR20130114985A KR 20130114985 A KR20130114985 A KR 20130114985A KR 1020120037484 A KR1020120037484 A KR 1020120037484A KR 20120037484 A KR20120037484 A KR 20120037484A KR 20130114985 A KR20130114985 A KR 20130114985A
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KR
South Korea
Prior art keywords
insulating housing
end cap
inner space
insulating
interference avoiding
Prior art date
Application number
KR1020120037484A
Other languages
Korean (ko)
Inventor
이준걸
Original Assignee
한국단자공업 주식회사
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Application filed by 한국단자공업 주식회사 filed Critical 한국단자공업 주식회사
Priority to KR1020120037484A priority Critical patent/KR20130114985A/en
Publication of KR20130114985A publication Critical patent/KR20130114985A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/042—General constructions or structure of high voltage fuses, i.e. above 1000 V
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05—Component parts thereof
    • H01H85/165—Casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/38—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/38—Means for extinguishing or suppressing arc
    • H01H2085/383—Means for extinguishing or suppressing arc with insulating stationary parts

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  • Fuses (AREA)

Abstract

The present invention is a high voltage fuse. In the high voltage fuse of the present invention, the first insulating housing 20 and the second insulating housing 30 constitute the insulating housing 10, and the first and second connectors 54 and 56 pass through the insulating housing 10. ) Protrudes and includes a fuse terminal 50 in which the melted portion 58 is located in the inner space. First end caps 24 are formed at both ends of the first insulating housing 20, and second end caps 34 are formed at both ends of the second insulating housing 30, respectively. These end caps 24 and 34 are composed of end side walls 26 and 36 and blocking plates 28 and 38, respectively. An interference avoiding portion 28 ′ is formed on one side blocking plate 28 of the first end cap 24, and a filling part 40 is formed on an inner surface of one side end side wall 36 of the second end cap 34. Is formed. The filling part 40 has a length longer than that of the interference avoiding part 28 ′, so that when the first insulating housing 20 and the second insulating housing 30 are completely coupled, an inner space of the insulating housing 10 is provided. Protrudes to reduce the volume of the internal space. That is, while the filling material 40 enters the interior space while the SOHO material is filled, it eliminates the gap between the SOHO material, thereby improving the SOHO performance.

Description

High voltage fuse

The present invention relates to a high voltage fuse, and more particularly, to a high voltage fuse in which an arc extinguishing material is filled inside to prevent generation of secondary arcs during cutting of the melt part, and thus the filling of the arc extinguishing material is more easily performed.

The fuse is to supply power to the electronic components from a power source such as a battery, and to cut off the power supply quickly when the electronic components are overloaded. Some of these fuses are used in electrical components where high voltage is used. The fuse used at high voltage can be secondarily impacted on the electric component by the power supplied to the electric component through the arc generated when the fuse of the fuse is melted and broken due to the overload.

In order to solve such a problem, it is necessary for the fuse used at high voltage to cut off the arc generated when the blown part is broken. To this end, a small material such as sand is filled in the space in which the melted portion is accommodated to surround the melted portion.

However, the work of filling the arc extinguishing material in the space in which the melted part is accommodated is very troublesome. In order to fill the inner space of the fuse without gaps, it is preferable that the arc extinguishing material is sand, but it is preferable to do so in a state in which the housing and the fuse terminal are completely coupled. Since the SOHO material is not completely filled in the housing, there is a problem that the SOHO performance decreases due to a slight empty space inside the housing, and in this case, it is inconvenient to prevent the input port by using a separate structure such as a fastening ring. there was.

Japan Publication 2004-119105

Therefore, an object of the present invention is to solve the conventional problems as described above, in the insulating housing that is slidingly coupled to each other between the hoses of the inner space of the insulating housing by placing the filling portion to enter the inner space when the insulating housing is coupled There is no gap in the.

According to a feature of the present invention for achieving the object as described above, the present invention is configured so that the first insulating housing and the second insulating housing formed with the uneven coupling portion corresponding to each other are relatively moved in the longitudinal direction and coupled therein A fuse having an insulation housing having an inner space filled with the arc extinguishing material, and a blow-out portion which protrudes from the first housing and the second connection to both ends of the insulating housing in the longitudinal direction and is provided inside the insulation housing to melt and break when overloaded. And a terminal, wherein the first insulating housing is provided with first end caps at both ends of the first body portion, and the second insulating housings are respectively provided with second end caps at both ends of the second body portion. At the corresponding positions of the first end cap and the second end cap, the interference avoiding portion and the interference avoiding portion are located in the inner space of the insulating housing. The filling part is provided and one of the second end cap is formed with an inlet is shielded by the first end cap, and the first and second insulating housing in the longitudinal direction after the extinguishing material is filled in the inner space through the inlet It moves relative to the shielding the inlet and reduces the volume of the inner space as the filling portion enters the inner space.

A stopper is further provided on an inner surface of the end side wall constituting the first end cap of the first insulating housing at a position corresponding to an inlet formed in the blocking plate constituting the second end cap of the second insulating housing. Regulate the relative position of movement between the housing and the second insulated housing.

The first end cap and the second end cap are each provided with a blocking plate on an end side wall, and the blocking plate is formed to have a thicker thickness than the other parts of the first insulating housing and the second insulating housing, respectively. The thickness of the blocking plate is longer than the movement information of the first insulating housing and the second insulating housing which allow the opening to be opened and closed by the first end cap.

The interference avoiding part is formed by removing the tip of the blocking plate in a thickness direction to some extent, and the filling part is located in the interference avoiding part, and the interference when the first insulating housing and the second insulating housing are completely combined. The length is set to protrude from the avoiding part to the inner space of the insulating housing.

A filling part is formed on an inner surface of the end side wall of the first end cap of one side of the first insulating housing, and an interference avoiding part is formed on the blocking plate of the second end cap of the second insulating housing corresponding thereto, and the other side of the first insulating housing. An interference avoiding part is formed on the blocking plate of the first end cap, and a filling part is formed on an inner surface of the end side wall of the second end cap of one side of the second insulating housing corresponding thereto.

According to another feature of the invention, the present invention comprises a first insulating housing having a first end cap is provided at both ends of the first body portion and having an uneven coupling portion extending in the longitudinal direction at both ends, and the first insulating housing An inner space having a concave-convex coupling portion coupled to the concave-convex coupling portion and having a second end cap disposed at both ends of the second body portion and being relatively moved in the longitudinal direction with respect to the first insulating housing, A second insulating housing formed in cooperation with the first insulating housing, the first connecting portion and the second connecting portion protruding from both ends of the first and second insulating housings in the longitudinal direction of the first and second insulating housings, and are provided in the inner space to overload. And a fuse terminal having a melted portion that is melted and broken at a time, and the interference avoiding portion and the interference avoiding portion are formed at positions corresponding to each other of the first end cap and the second end cap. It is formed to have a longer length and is provided with a filling portion that protrudes into the inner space when the first insulating housing and the second insulating housing are completely coupled, and one of the second end caps is formed with an inlet shielded by the first end cap. After the filling material is filled into the inner space through the inlet, the first and second insulating housings are moved relative to each other in the longitudinal direction to shield the inlet, and the filling part enters the inner space from the interference avoiding part. Reduces the volume of

The first end cap and the second end cap are each provided with a blocking plate on an end side wall, and the blocking plate is formed to have a thicker thickness than the other parts of the first insulating housing and the second insulating housing, respectively. The thickness of the blocking plate is longer than that of the relative moving row information between the first insulating housing and the second insulating housing which allow the opening to be opened and closed by the first end cap.

The interference avoiding part is formed by removing the tip of the blocking plate in the thickness direction, and the filling part is set in length such that a part is located in the interference avoiding part and the remaining part protrudes into the inner space of the insulating housing.

In the high voltage fuse according to the present invention, the following effects can be expected.

That is, in the present invention, when the insulating housing is combined, the filling portion enters the inner space of the insulating housing, thereby reducing the actual volume of the inner space, so that there is no gap between the fire hoses. Thus, the effect of greatly improving the extinguishing performance of the high voltage fuse can be obtained.

1 is a perspective view showing the configuration of a preferred embodiment of a high voltage fuse according to the present invention.
2 is an exploded perspective view showing a configuration of an embodiment of the present invention.
3 is an exploded perspective view showing a relationship between a first insulating housing and a second insulating housing constituting an embodiment of the present invention;
Figure 4 is a perspective view showing the configuration of a first insulating housing constituting an embodiment of the present invention.
Figure 5 is a perspective view showing the configuration of a second insulating housing constituting an embodiment of the present invention.
Figure 6 is a perspective view showing a state in which the opening for the injection of the extinguishing material in the embodiment of the present invention opened.

Hereinafter, a preferred embodiment of the high voltage fuse according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in the drawings, the insulating housing 10 forms the appearance of the high voltage fuse of the present invention. The insulating housing 10 is made of an insulating synthetic resin. The insulating housing 10 is largely composed of a body portion 11 and end caps 14 provided at both ends of the body portion 11. In the present embodiment, the trunk portion 11 has a hollow cylindrical shape. However, the shape of the body portion 11 may be in various shapes such as polygonal pillars. The end cap 14 is made into a short cylinder or disc shape. However, the end cap 14 may also be made in various forms such as a square pillar or a flat hexahedron. But best of all, it is made in the shape of a disc.

A locking ring 16 surrounding the outer surface of the end cap 14 at both ends of the insulating housing 10 may be installed. The locking ring 16 serves to fix the coupling between the first insulating housing 20 and the second insulating housing 30 to be described below.

A cylindrical sleeve (not shown) may be installed inside the insulating housing 10. Of course, the sleeve does not have to be installed. The sleeve is made of a metallic material, and serves to prevent the extinguishing material filled in the inner space chemically reacts with the insulating housing 10 to change the characteristics of the insulating housing 10.

The insulating housing 10 includes a first insulating housing 20 and a second insulating housing 30. The first insulating housing 20 and the second insulating housing 30 are formed by dividing the insulating housing 10 in the longitudinal direction. That is, the first insulating housing 20 and the second insulating housing 30 are divided into both sides based on the imaginary plane including the longitudinal central axis of the insulating housing 10 to form the insulating housing 10. will be.

The first insulating housing 20 is provided with a first body portion 21. The first body portion 21 forms the body portion 11 to form a space therein in cooperation with the second body portion 31 of the second insulating housing 30. An internal space formed by the first insulating housing 20 and the second insulating housing 30 is filled with an arc extinguisher (not shown) in a state where the fuse terminal 50 to be described below is located.

Coupling channels 22 are formed to extend in the longitudinal direction at front ends of both sides of the first body portion 21 in the width direction. The coupling channel 22 is formed to concave along the entire front end of the first body portion 21 in the width direction. The coupling rib 32 of the second insulating housing 30 to be described below is inserted therein. Of course, the coupling channel 22 does not have to have the same configuration over the entire length direction of both ends of the first insulating housing 20, and the coupling channel 22 at least in some sections, preferably both ends of the length direction. It is necessary to have a shape of.

First end caps 24 are formed at both ends of the first insulating housing 20, respectively. The first end cap 24 forms the end cap 14. The first end cap 24 cooperates with the second end cap 34 of the second insulating housing 30 to be described below to form the end cap 14. The first end cap 24 forms approximately half of the end cap 14.

The first end cap 24 is composed of an end side wall 26 and a blocking plate 28. The end side wall 26 is formed integrally with the first body portion 21, and has a shape in which a portion of the ring shape is cut off. A stopper 27 protrudes from an inner surface of one of the end side walls 26. The stopper 27 serves to regulate a coupling position between the second insulating housing 30 and the first insulating housing 20.

The blocking plate 28 is integrally provided on the end side wall 26, and the blocking plate 28 has a semicircular plate shape in which the disc is cut in the radial direction. The blocking plate 28 is formed integrally with the first insulating housing 20, but is relatively thicker than other portions of the first insulating housing 20. This is because the first insulating housing 20 and the first insulating housing 20 and the second insulating housing 30 are moved relative to each other in a combined state when the opening 39, which will be described below, is opened. This is to prevent the internal space formed by the second insulating housing 30 from communicating with the outside. That is, the thickness of the blocking plate 28 is set to secure a stroke in which the first insulating housing 20 and the second insulating housing 30 can be relatively moved. Therefore, the thickness of the blocking plate 28 is made larger than the relative movement stroke of the first and second insulating housings 20 and 30. Such a configuration allows longitudinal relative movement with the second insulating housing 30 to be described below while being assembled to each other.

An interference avoiding portion 28 ′ is formed in the blocking plate 28 on one side of the first end cap 24. The interference avoiding portion 28 ′ is intended to avoid interference with the filling portion 40 of the second insulating housing 30 to be described below. The interference avoiding portion 28 'is a portion of the blocking plate 28 cut in the thickness direction. The interference avoiding portion 28 ′ is provided on the side of the first end cap 24 on which the stopper 27 is formed.

A filling portion 29 is formed on the inner surface of the end side wall 26 of the first end cap 24 opposite to the interference avoiding portion 28 ′. The filling portion 29 is a flat hexahedral plate shape. Of course, since the inner surface of the end side wall 26 is curved so as to have a cube-shaped curved surface accordingly. The filling portion 29 is located through the interference avoiding portion 38 ″ of the second insulating housing 30 to be described below, and has a length longer than that of the interference avoiding portion 38 ″. More precisely, the filling portion 29 protrudes from the interference avoiding portion 38 'into an internal space formed by the insulating housing 10 in a state where a portion of the filling portion 29 is positioned in the interference avoiding portion 38'. do.

When the first insulating housing 20 and the second insulating housing 30 are coupled to each other, as shown in FIG. 1, one end of the filling portion 29 is formed at an outer inlet of the interference avoiding portion 38 ′. The other end is located in the inner space of the insulating housing 10 protruding from the interference avoiding portion 38 'is the structure of this embodiment. However, if one end of the filling portion 29 is on the inner side of the interference avoiding portion 38 'more than the outer inlet of the interference avoiding portion 38', the length of the filling portion 29 is not the same as described above and the filling portion The length of 29 may be equal to or smaller than the thickness of the blocking plate 38. In fact, it is important to note that when the filling part 29 is coupled to the first insulating housing 20 and the second insulating housing 30 as shown in FIG. 1, the interference avoiding part is formed into the inner space of the insulating housing 10. 38 ') should be protruding.

The second insulating housing 30 is provided with a second body part 31 that forms the body part 11 in cooperation with the first body part 21. Coupling ribs 32 are formed at the front ends of both sides of the second body part 31 in the longitudinal direction, respectively. The coupling rib 32 protrudes along the entire width of both front ends of the second body portion 31 so as to extend in the longitudinal direction of the second insulating housing 30. The coupling rib 32 is inserted into the coupling channel 22 of the first insulating housing 20 to move in the longitudinal direction of the insulating housing 10.

Second end caps 34 are formed at both ends of the second insulating housing 30, respectively. The second end cap 34 cooperates with the first end cap 24 to form the end cap 14. The second end cap 34 forms approximately half of the end cap 14.

The second end cap 34 also includes an end side wall 36 and blocking plates 38 and 40. The end side wall 36 is formed integrally with the second body portion 31, and has a shape in which a part of the ring shape is cut off. The blocking plate 38 is also formed to have a relatively thick thickness compared to other portions of the second insulating housing 30.

A terminal groove 38 ′ is formed in the blocking plate 38 of the second insulating housing 30. The terminal groove 38 ′ is a portion through which the fuse terminal 50 to be described below passes. The terminal groove 38 ′ may be formed in the blocking plate 28 of the first insulating housing 20.

An interference avoiding portion 38 ″ is formed in one blocking plate 38 of the second insulating housing 30. The interference avoiding portion 38 ″ is an interference avoiding portion 28 ′ of the first insulating housing 20. ) And the same configuration. The filling portion 29 of the first insulating housing 20 is located therein.

An injection hole 39 is formed in the other blocking plate 38 of the second insulating housing 30. The inlet 39 is to cut the inner portion of the blocking plate 38 to communicate the outside and the inner space of the insulating housing 10.

Then, the filling portion 40 is formed on the inner surface of the end side wall 36 of the second end cap 34 on the side where the inlet 39 is formed. The filling part 40 is positioned in the interference avoiding part 28 ′ of the first insulating housing 20 so that the first and second insulating housings 20 and 30 are combined as shown in FIG. 1. Protruding into the inner space of the insulating housing 10 serves to reduce the volume of the inner space of the insulating housing 10. In the figure, reference numeral 42 is a sleeve stopper for fixing the sleeve in the second insulating housing 30.

The fuse terminal 50 is formed of a conductive material. Specifically, the fuse terminal 50 is made of a conductive metal material. The skeleton of the fuse terminal 50 is formed of a plate-shaped body portion 52 having a long length compared to the width.

Both ends of the body part 52 are provided with first and second connection parts 54 and 56 respectively connected to a terminal of a wire or another connector. Through-holes 54 'and 56' are formed in the connecting portions 54 and 56, respectively.

  In the middle portion of the body portion 52 is formed a melted portion (58). The melted portion 58 is formed to have a narrower width than other portions of the body portion 52, and a through hole is formed if necessary. The melted portion 58 is a portion that melts and breaks when excessive current flows. The more specific configuration of the blown portion 58 will be omitted for convenience.

It will be described below to assemble the high voltage fuse according to the present invention having the configuration as described above.

The fuse terminal 50 is disposed between the first insulating housing 20 and the second insulating housing 30, and the coupling channel 22 and the second insulating housing 30 of the first insulating housing 20 are disposed. The coupling ribs 32 of the coupling ribs 32 are inserted into and coupled to the coupling channel 22 in a state facing each other.

The first insulating housing 20 and the second insulating housing 30 are relatively moved in their longitudinal direction so that the coupling ribs 32 are guided inside the coupling channel 22. The relative movement between the insulating housings 20 and 30 is performed until the first and second insulating housings 20 and 30 coincide with each other and become in the state of FIG. 1. In this case, the fuse terminal 50 should be located between the first and second insulating housings 20 and 30.

In this state, the inlet 39 formed on the side of the second insulating housing 30 is blocked by the end side wall 26 of the first insulating housing 20. In this state, the first and second insulating housings 20 and 30 are moved relative to each other in FIG. 6. In the state of FIG. 6, the inlet 39 of the second insulating housing 30 is opened. At this time, the stopper 27 of the first insulating housing 20 is hooked to the end of the sleeve in the insulating housing 10 so that no further movement occurs.

In the state of FIG. 6, the first and second insulating housings 20 and 30 are relatively moved in the longitudinal direction, but the thicknesses of the blocking plates 28 and 38 are too low to offset the movement stroke. It is only in the inlet 39 that the internal space communicates to the outside. In this state, the filling portions 29 and 40 do not protrude toward the inner space from the interference avoiding portions 28 ′ and 38 ″.

In the state of FIG. 6, the extinguishing material is injected into the insulating housing 10 through the inlet 39. When the injection of the extinguishing material through the inlet 39 is completed, the first and second insulating housing 10 is moved relative to the opposite direction. In this case, the filling parts 29 and 40 are partially protruded from the respective interference avoiding parts 28 'and 38 "toward the inner space in this process. It serves to reduce the volume of the internal space of 10. In other words, so that the small material filled in the inner space of the insulating housing 10 to be in close contact there is no gap between the small material.

Next, the locking ring 16 is mounted on the end cap 14 so that the first and second insulating housings 20 and 30 are coupled to each other. The stopper 27 is hooked on the inlet 39 of the second insulating housing 30 so that the relative movement between the first and second insulating housings 20 and 30 in the direction no longer occurs. do.

The scope of the present invention is not limited to the embodiments described above, but may be defined by the scope of the claims, and those skilled in the art may make various modifications and alterations within the scope of the claims It is self-evident.

For example, the coupling channel 22 of the first insulating housing 20 and the coupling rib 32 of the second insulating housing 30 may be formed at opposite positions. These coupling channels 22 and coupling ribs 32 may be defined as uneven coupling portions formed in the longitudinal direction of the insulating housings 20 and 30.

In addition, although the locking ring 16 is used to lock the coupling state of the first and second insulating housings 20 and 30 in the illustrated embodiment, the insulating housings 20 and 30 are coupled to the coupling channel 22. The locking ring 16 may not be used as long as it can be engaged by only the coupling rib 32 and the coupling rib 32.

In the illustrated embodiment, the filling portions 29 and 40 and the interference avoiding portions 28 ′ and 38 ″ are disposed in the first insulating housing 20 and the second insulating housing 30, respectively. Only one side may have a pair of filling portions 29 and 40 and the interference avoiding portions 28 ′ and 38 ″.

10: insulation housing 11: body part
14: end cap 16: locking ring
20: first insulating housing 21: first body
22: coupling channel 24: first end cap
26: end side wall 27: stopper
28: blocking plate 28 ': interference skin
29: filling part 30: second insulating housing
31: second body 34: second end cap
36: end side wall 38: blocking plate
38 ': Terminal groove 38 ": Interference avoidance skin
39: inlet 40: filling part
42: Slider stopper 50: Fuse terminal
52: body portion 54: first connection portion
56: second connection portion 58: melt end

Claims (8)

An insulating housing having an inner space in which a first insulating housing having a concave-convex coupling part formed at a position corresponding to each other and the second insulating housing are relatively moved in the longitudinal direction and coupled thereto, and having an extinguishing material filled therein;
A fuse terminal having protruding first and second connecting portions protruding from both ends of the insulating housing in the longitudinal direction, and having a melting end provided inside the insulating housing to melt and break when overloaded;
The first insulating housing is provided with first end caps at both ends of the first body portion, and the second insulating housings are provided with second end caps at both ends of the second body portion, respectively. Corresponding portions of the second end caps are provided with an interference avoiding portion and a filling portion protruding into the inner space of the insulating housing in a state of being positioned in the interference avoiding portion, and one of the second end caps is provided at the first end cap. An inlet is shielded by
A high-voltage fuse that fills the inner space through the inlet and relatively moves the first and second insulating housings in the longitudinal direction to shield the inlet and reduces the volume of the inner space as the filling part enters the inner space. .
The stopper of claim 1, further comprising a stopper at an inner surface of an end side wall of the first insulating cap of the first insulating housing at a position corresponding to an inlet formed in the blocking plate of the second insulating cap of the second insulating housing. And a high voltage fuse provided to regulate a relative movement position between the first insulating housing and the second insulating housing.
According to claim 1 or claim 2, wherein the first end cap and the second end cap is configured with a blocking plate on the end side wall, respectively, wherein the blocking plate is different from the first insulating housing and the second insulating housing, respectively The thickness of the blocking plate is formed to be thicker than the portion, wherein the thickness of the high voltage fuse is formed longer than the travel information of the first insulating housing and the second insulating housing to open and close the opening by the first end cap.
The method of claim 3, wherein the interference avoiding portion is formed by removing the tip of the blocking plate in a thickness direction to some extent, and the filling portion is located in the interference avoiding portion of the first insulating housing and the second insulating housing. The high voltage fuse has a length is set so as to project from the interference avoiding portion to the inner space of the insulating housing when fully coupled.
The method of claim 4, wherein the filling portion is formed on the inner surface of the end side wall of the first end cap of one side of the first insulating housing, and the interference avoiding part is formed on the blocking plate of the second end cap of the second insulating housing corresponding thereto. An interference avoiding part is formed on the blocking plate of the first end cap of the other insulating housing, and a filling part is formed on the inner surface of the end side wall of the second end cap of the second insulating housing corresponding thereto.
A first insulating housing having first end caps provided at both ends of the first body part and having an uneven coupling portion extending in a longitudinal direction at both ends thereof;
It has a concave-convex coupling portion coupled to the concave-convex coupling portion of the first insulating housing, and the second end cap is provided at both ends of the second body portion and is relatively moved in the longitudinal direction with respect to the first insulating housing is coupled to the inside arc A second insulating housing which forms an internal space filled with ash in cooperation with the first insulating housing,
A fuse terminal which penetrates the inner space and extends into the longitudinal ends of the first and second insulating housings, the first connecting portion and the second connecting portion protruding from the inner space, and a melted portion that is melted and broken when overloaded;
The length of the interference avoiding portion and the interference avoiding portion is formed at a position corresponding to each other of the first end cap and the second end cap to be longer than the length of the first insulating housing and the second insulating housing when the inner space is completely combined. It is provided with a protruding filling portion and one of the second end cap is formed with an inlet shielded by the first end cap,
After the anti-fogging material is filled in the inner space through the inlet, the first and second insulating housings are moved relative to each other in the longitudinal direction to shield the inlet, and the filling part enters the inner space from the interference avoiding portion, and thus the volume of the inner space. High voltage fuses that reduce
[7] The method of claim 6, wherein the first end cap and the second end cap are each provided with a blocking plate on an end side wall, and the blocking plate is thicker than other portions of the first insulating housing and the second insulating housing, respectively. Is formed thicker, wherein the thickness of the blocking plate is longer than the relative moving row information of the first insulating housing and the second insulating housing to open and close the opening by the first end cap.
The method of claim 7, wherein the interference avoiding portion is formed by removing the front end of the blocking plate in the thickness direction, wherein the filling portion is located in the interference avoiding portion and the remaining portion is protruded into the inner space of the insulating housing High voltage fuse with set length.
KR1020120037484A 2012-04-10 2012-04-10 High voltage fuse KR20130114985A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160083342A (en) * 2014-12-30 2016-07-12 한국단자공업 주식회사 High voltage fuse
CN106688073A (en) * 2014-09-26 2017-05-17 迪睿合株式会社 Fuse element, fuse component, and fuse component with built-in heating element
JP2021093323A (en) * 2019-12-12 2021-06-17 太平洋精工株式会社 fuse

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106688073A (en) * 2014-09-26 2017-05-17 迪睿合株式会社 Fuse element, fuse component, and fuse component with built-in heating element
KR20170055543A (en) * 2014-09-26 2017-05-19 데쿠세리아루즈 가부시키가이샤 Fuse element, fuse component, and fuse component with built-in heating element
US10707043B2 (en) 2014-09-26 2020-07-07 Dexerials Corporation Fuse element, fuse device, and heat-generator-integrated fuse device
KR20160083342A (en) * 2014-12-30 2016-07-12 한국단자공업 주식회사 High voltage fuse
JP2021093323A (en) * 2019-12-12 2021-06-17 太平洋精工株式会社 fuse

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