KR20170042852A

KR20170042852A - Multi fuse

Info

Publication number: KR20170042852A
Application number: KR1020150141949A
Authority: KR
Inventors: 강신덕
Original assignee: 한국단자공업 주식회사
Priority date: 2015-10-12
Filing date: 2015-10-12
Publication date: 2017-04-20

Abstract

The present invention relates to multi-capacity fuses. In the present invention, a plurality of fuse elements 20 are provided in a single fuse, and a fuse capacity can be selected by operating the first ring 30 by selecting a fuse element 20 desired by the user. To this end, a first cap 44 and a second cap 44 'are provided at both ends of the housing 10 constituting the outer appearance. A first ring 30 is installed on the first cap 44, The switch hole 38 provided in the first ring 30 selectively contacts one of the fuse elements 20 provided in the inner space 12 of the housing 10. The connection bus bar 24 is electrically connected to the second cap 44 'at the other end of the fuse element 20. The connection bus bar 24 is electrically connected to the fuse element 20 And is electrically connected to the power source side. The first cap 44 allows the specific fuse element 20 to be electrically connected to the electric component side through the switch mechanism 38. According to the present invention, a plurality of capacitors can be realized with a single fuse.

Description

Multifuse fuse

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-capacity fuse, and more particularly, to a multi-capacity fuse capable of using one fuse with various capacities.

The fuse is designed to cut off the power supply to the electric parts when the electric parts are overloaded in supplying power from the electric source such as the battery to the electric parts. The fuse inside the fuse mainly melts due to the overcurrent and breaks the power supply. There are a variety of such fuses, and what is used at high voltage is that a fuse element is provided inside a cylindrical housing.

Such fuses are required to have various capacities depending on the specifications of electrical components. In other words, there must be a variety of capacitors to meet the capacity of the desired power source. However, it is very troublesome to have fuses of various capacities, and it is very inconvenient for the consumer to have extra fuses of various capacities.

Therefore, there is a growing demand for fuses that can be used in multiple capacities.

Korean Patent Publication No. 10-2013-24244

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and it is an object of the present invention to enable a single fuse to be selectively used in various capacities.

According to an aspect of the present invention for achieving the above object, the present invention provides a method of manufacturing a semiconductor device, comprising: a housing having a first end formed at one end thereof and a second end formed at the other end thereof, A plurality of fuse elements provided along the inner space of the housing and having a fusing portion melted and broken upon overloading, and a plurality of fuse elements provided at the first end to shield one end of the inner space and electrically connected to the outside A first cap provided with one connection leg and a second connection leg provided at the second end and shielding the other end of the internal space and electrically connected to the fuse elements and electrically connected to the outside, 2 cap and a switch means movably installed in the first cap to electrically connect one of the first cap and the fuse element.

The first ring is rotatably provided on the first cap and the switch ring is installed on the first ring so as to be supported by the elastic member so that the specific fuse element and the first cap are electrically connected to each other while moving between the plurality of fuse elements .

Wherein the switch body has a pressing body which is in close contact with the fuse element, and both ends of the pressing body are formed with an interlocking curved surface for smooth movement of the switch body, a guide tube is formed in the pressing body, Respectively.

The fuse elements are connected at one end to a connecting bus bar, the connecting bus bar is electrically connected to the second cap, and the other ends of the fuse elements are connected to an insulator to selectively connect to the switch socket.

Wherein the insulator includes a fixing groove in which an end of the fuse element is fixed, and a selection bus bar having a tight contact portion that is in close contact with a surface of the fuse element fixed to the fixing groove is integrally provided on the fixing groove, And the fuse element and the first cap are electrically connected to each other by the switch hole.

The selected bus bar is provided with a number corresponding to the fuse elements on the insulator. An end portion of the elastic deformable portion capable of elastically deforming is integrally fixed to the insulator, and the contact portion is extended to be connected to the free end of the elastic deformable portion.

A through hole is formed in a first end of the housing, and a cap hole is formed in the first cap portion so as to correspond to the through hole, thereby the switch hole is positioned.

According to another aspect of the present invention, there is provided a fuse assembly including a housing having an inner space formed therethrough, and a plurality of fuse elements having a fused portion that is melted and broken at the time of overloading, A first cap provided at one end of the housing to shield one end of the inner space and having a first connection leg electrically connected to the outside, and a second cap provided at the other end of the housing, And a second connection leg which is electrically connected to the fuse elements and is electrically connected to the outside, and a second cap which is rotatably installed on the ring channel formed by the outer surface of the first cap, A first ring provided on the first ring and electrically connected to one of the fuse elements in accordance with the rotation of the first ring; A switch that is old.

Wherein the switch body includes a pressing body which is in close contact with a surface of the fuse element, a curved contact surface for guiding movement of the switch mechanism is formed at both ends of the pressing body, a guide tube is formed in the pressing body, An elastic member having one end is inserted into the guide tube and the other end is supported.

In the inner space of the housing, a sleeve is disposed on the inner surface corresponding to the fusing end of the fuse element to prevent the arc generated at the fusing part from affecting the housing.

In the multi-capacity fuse according to the present invention, the following effects can be obtained.

In the present invention, a plurality of fuse elements are provided in the inner space of the housing, and a switch means selectively connected to the fuse elements is provided to select and use a fuse element having a desired capacity. Therefore, it is possible to use one fuse for electrical components of various capacities.

According to the present invention, since the capacity of the fuse can be selected by rotating the first ring, it is possible to simplify the operation of selecting the capacity, thereby increasing convenience for the user.

1 is a perspective view showing a preferred embodiment of a multi-capacity fuse according to the present invention.
2 is an exploded perspective view showing a configuration of an embodiment of the present invention.
3 is a sectional view showing a configuration of an embodiment of the present invention.
4 is a cross-sectional perspective view showing the configuration of an important part of an embodiment of the present invention.
5 is a perspective view showing an insulator constituting an embodiment of the present invention.
6 is a perspective view showing a switch mechanism constituting an embodiment of the present invention.
7 is a perspective view showing a first cap constituting an embodiment of the present invention.
8 is an assembly process showing an example of assembling the multi-capacity fuse according to the embodiment of the present invention.
9 is an explanatory view showing that a switch is operated in the embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not intended to be interpreted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

According to the drawings, the housing 10 forms an outer appearance of a multi-capacity fuse according to the present invention. The housing 10 is made in a cylindrical shape. An internal space 12 is formed in the housing 10. The inner space (12) opens to both ends of the housing (10). In the inner space 12, fuse elements 20 and SOHO yarns, which will be described later, are positioned.

A first end 14 is formed at one end of the housing 10 and a second end 16 is formed at the other end. The first end portion 14 and the second end portion 16 are formed to have a relatively small outer diameter as compared with other portions of the housing 10. A plurality of through holes 18 are formed in the first end portion 14 and the second end portion 16. The through hole 18 is open to the outer surfaces of the first end 14 and the second end 16 and communicates with the inner space 12. For example, the number of through-holes 18 in the first end 14 is equal to the number of fuse elements 20 described below. The through hole 18 in the first end portion 14 is a portion in which the switch hole 38 to be described below is selectively located and the through hole 18 in the second end portion 16 is a portion in which the fuse element 20 Is a portion through which a tool for welding the connecting bus bar 24 penetrates.

The fuse element 20 is a strip-shaped metal plate having a predetermined width and thickness. A fusing end portion 22 is formed at the longitudinal middle portion of the fuse element 20. [ The configuration of the fusing end portion 22 shown in the drawings is only given as an example, and a specific configuration is not shown for convenience. In this embodiment, the number of the fuse elements 20 is four. However, the number of the fuse elements 20 depends on how many capacitors are used in one fuse.

The plurality of fuse elements 20 are electrically connected by a connecting bus bar 24. The connecting bus bar 24 has an octagonal cross section in this embodiment. However, the connecting bus bar 24 may have various shapes such as a cylindrical shape or a polygonal tube shape. Actually, the connecting bus bar 24 may be in any shape as long as it is electrically connected to the second connecting leg 50 'to be described below so as to electrically connect the power supply side and the fuse elements 20 .

One end of the fuse elements 20 is connected to the connection bus bar 24 and the other end is connected to the insulator 26. The insulator 26 is made of an insulating synthetic resin material, which is similar to the connecting bus bar 24 as shown in FIG. The insulator 26 insulates the fuse elements 20 without electrically connecting them. A fixing groove 26 'for fixing one end of the fuse element 20 is formed around the outer surface of the insulator 26. The fixing groove 26 'extends to one end of the insulator 26. The fixing groove 26' has one end of the fuse element 20 inserted and fixed. In FIG. 5, a through hole is formed through the center of the insulator 26. However, the through-hole is not necessarily required.

The insulator 26 is provided with a plurality of selection bus bars 27. The selection bus bar 27 is integrated by an insert molding process when the insulator 26 is manufactured. The selected bus bar 27 has an elastically deformable portion 28 which is buried in the insulator 26 and extends from the elastically deformable portion 28 to form a contact portion 29). The tight contact portion 29 is selectively in contact with one surface of the fuse element 20. That is, the tight contact portion 29 is brought into close contact with the fuse element 20 by the switch means 38 described below. The tight contact portion 29 is spaced a predetermined distance from the surface of the fuse element 20 and is pressed by the switch tool 38 so that the tight contact portion 29 is brought into close contact with the surface of the fuse element 20 .

A first ring 30 is mounted on a first end 14 of the housing 10 with a first cap 44 to be described below mounted thereon, The second ring 30 'is mounted with the two caps 44' installed.

The first ring 30 and the second ring 30 'are made of a conductive metal material. It is preferable that the first ring 30 and the second ring 30 'are the same. A guide pipe 32 is provided at one side of the inner surface of the first ring 30 and a seating protrusion 34 protrudes at a portion corresponding to the inside of the guide pipe 32. Such a configuration is also provided in the second ring 30 ', but it is not necessary in the second ring 30'. An elastic member 36 is provided inside the guide tube 32. One end of the elastic member 36 is seated on the seating protrusion 34 in a state where the elastic member 36 is installed inside the guide tube 32. The other end of the elastic member 36 is supported by a switch mechanism 38 to be described below so that the switch mechanism 38 is brought into close contact with the fuse element 20.

The switch port 38 is made of a conductive metal material. The switch means 38 selectively applies pressure to the one side surface of the fuse element 20 by pressing the contact portion 29 of the selected bus bar 27 to supply power through a specific fuse element 20 . To this end, the switch mechanism 38 is provided with a substantially flattened pushing body 39, and at both ends of the pushing body 39 there is an interlocking curved surface 39 'formed in a round shape. The interlocking curved surface 39 'is hooked on the edge of the through hole 18 formed in the first end portion 14 of the housing 10 when the switch hole 38 is moved by the first ring 30 So that it can be smoothly moved.

A guide pipe 40 protrudes from the pressing body 39 at the opposite side of the surface for pressing the fuse element 20. The guide pipe 40 is provided with a mounting projection 42 are formed. The other end of the elastic member (36) is seated on the seating projection (42) in the guide tube (40). The outer diameter of the guide pipe 40 is smaller than the inner diameter of the guide pipe 32 formed in the first ring 30. That is, the guide tube 40 of the switch mechanism 38 is inserted into the guide tube 32 of the first ring 30 and guided. However, this configuration may be reversed.

A first cap 44 is installed at the first end 14 of the housing 10 and a second cap 44 'is installed at the second end 16. The first cap 44 and the second cap 44 'are both made of a conductive metal. The configurations of the first cap 44 and the second cap 44 'are the same. Thus, the description is based on the first cap 44. The first cap 44 has an internal space 45 formed therein, which is open at one side and closed at the other side.

A ring channel 46 is formed to surround the outer surface of the first cap 44. The first ring (30) is seated on the ring channel (46). A cap passage hole 48 is formed in the bottom of the ring channel 46. The cap passage hole 48 is formed at a position corresponding to the passage hole 18 of the first end portion 14 of the housing 10. The switch hole 38 is lifted up through the cap through hole 48 and the through hole 18 so that the selected bus bar 27 is brought into close contact with the corresponding fuse element 20.

The first connection leg 50 is integrally formed with the first cap 44. The first connection leg 50 is for connection with the outside, and in particular, is a portion electrically connected to the electrical component side. The second connection leg 50 'is electrically connected to the power source side of the second cap 44'.

Hereinafter, the multi-capacity fuse according to the present invention will be described in detail.

First, the assembly of the multi-capacity fuse of the present invention will be described with reference to FIG. FIG. 8 (a) shows that the connecting bus bar 24 is integrated with the second cap 44 '. The second cap 44 'and the connecting bus bar 24 are both made of a conductive metal material and are integrated by a method such as welding.

Next, as shown in FIG. 8 (b), the end portions of the respective fuse elements 20 are integrally fastened to the connecting bus bar 24. At this time, a welding rod is inserted through a cap through hole 48 formed in the second cap 44 'and fastened by brazing or metalizing.

A second ring 30 'is provided in the ring channel 46 of the second cap 44'. This is shown in Fig. 8 (c). However, the second ring 30 'may be installed before or after the first ring 30 is installed.

Next, as shown in FIG. 8 (d), an insulator 26 is provided at the other end of the fuse element 20. As shown in FIG. The end of the fuse element 20 is inserted into the fixing groove 26 'of the insulator 26 and fixed. At this time, the insulator 26 is provided with a selection bus bar 27 at a position corresponding to the fixing groove 26 '. Even if the fuse element 20 is seated in the fixing groove 26' It is not in contact with the bus bar 27.

8 (e), the housing 10 is installed in a state where the other end of the fuse elements 20 is fixed by using the insulator 26. As shown in Fig. That is, the second cap 44 'is mounted on the second end 16 of the housing 10 while inserting the fuse element 20 into the internal space 12 of the housing 10.

8 (e), the inner space 12 of the housing 10 may be filled with a small lid. A sleeve (not shown) is provided at a position corresponding to the fusing end 22 of the fuse element 20 on the inner surface of the inner space 12 of the housing 10 to melt the fusing end 22, It is possible to prevent the spark that is generated in the case of direct contact with the inner surface of the housing 10 from being affected. The sleeve may be inserted into the housing 10 so as to be closely contacted with the inner surface of the housing 10 so that the fusible end portions 22 of the fuse element 20 are positioned.

Next, the first cap (44) is mounted on the first end (14) of the housing (10). This state is shown in Fig. 8 (f).

Finally, the first ring 30 is seated in the ring channel 46 of the first cap 44. At this time, the configuration of the switch mechanism 38 and the elastic member 36 may be set in advance in a state where the first ring 30 is seated in the specific cap through-hole 48 and the through hole 18, The first ring 30 can be mounted on the ring channel 46 of the first cap 44 in a state in which the switch member 38 and the elastic member 36 are provided on the first ring 30.

The first cap 44 is provided with the ring channel 46 and the first cap 44 so that the first ring 30 and the parts associated therewith can be smoothly assembled to the first cap 44. [ (Not shown) that is configured to communicate one end portion of the first end portion 44 with the other end portion. The connection channel may be connected to the ring channel 46 on the opposite side so as to connect the ring channel 46 with the first connection leg 50 side of the first cap 44. In this way, the first ring 30 and associated parts can be easily mounted on the first cap 44. FIG. 8 (g) shows a completed multi-capacity fuse having the structure as shown in FIG.

The completed multi-capacity fuse according to the present invention can rotate the first ring 30 so that the switch tool 38 is electrically connected to a specific fuse element 20 to select a capacity of the fuse. 4 shows a state in which the contact portion 29 of the selected bus bar 27 is in close contact with one surface of the fuse element 20 due to the elastic force of the elastic member 36, . The specific fuse element 20 is connected to the outside through the first connection leg 50 through the selected bus bar 27, the switch mechanism 38, the first ring 30 and the first cap 44 Electrical component side).

The fuse elements 20 are electrically connected to the outside (power source side) through the second cap 44 'and the second connection leg 50' by the connection bus bar 24 at one end.

If the user wishes to select the capacity of the fuse of the present invention, the first ring 30 may be rotated with respect to the first cap 44. That is, when the first ring 30 is rotated, the switch holes 38 connected through the guide pipes 32 and 40 move together. The switch hole 38 is seated in the cap hole 48 and the through hole 18 when the switch ring 38 is electrically connected to the fuse element 20, (38) moves along the ring channel (46) to another cap through hole (48) and through hole (18). When the switch mechanism 38 moves along the ring channel 46, the elastic member 36 is compressed and the switch mechanism 38 moves closest to the inner surface of the first ring 30 State.

When the switch member 38 moves along the ring channel 46 and encounters the other cap through-holes 48 and the through holes 18, the elastic member 36 is restored, And enters the through hole 18 and the through hole 18 so that the fused element 20 of the adjacent bus bar 27 is brought into close contact with the adjacent fuse element 20.

When the first ring 30 is rotated by a predetermined angle in this manner, the fuse elements 20 to which the switch tool 38 contacts are different, and the capacity of the fuse can be changed.

9 (a) and 9 (b), in which the switch mechanism 38 is in close contact with the one-side selection bus bar 27 and is brought into close contact with another adjacent selection bus bar 27 and is energized through the other fuse elements, ). In FIG. 9, the housing 10 and the first cap 44 are removed for convenience of illustration.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

In the illustrated embodiment, the number of selected bus bars 27 is equal to the number of fuse elements 20 in the insulator 26, but this is not necessarily the case. That is, the switch holes 38 may be in direct contact with the respective fuse elements 20.

In the illustrated embodiment, one of the first cap 44 and the fuse element 20 is electrically connected while the first ring 30 is rotated to move the switch mechanism 38. However, Various configurations can be applied to the configuration in which the sphere 38 moves so that one of the fuse elements 20 and the first cap 44 are electrically connected.

For example, there are switch holes 38 corresponding to the respective fuse elements 20, and these switch holes 38 are pressed and raised so that the switch holes 38 are brought into contact with the fuse elements 20, And the like.

The second ring 30 'is not necessarily installed in the second cap 44'. However, the first cap 44 and the second cap 44 'are the same in order to make the components compatible, and the second ring 30' is also used for the ring channel 46 of the second cap 44 ' .

10: housing 12: inner space
14: first end 16: second end
18: Through hole 20: Fuse element
22: terminal end portion 24: connection bus bar
26: insulator 26 ': fixing groove
27: selected bus bar 28: elastic deformation part
29: tight contact portion 30: first ring
30 ': second ring 32: guide tube
34: mount projection 36: elastic member
38: switch assembly 39: push body
39 ': interlocking curved surface 40: guide tube
42: seat projection 44: first cap
44 ': second cap 45: inner space
46: ring channel 48: cap hole
50: first connecting leg 50 ': second connecting leg

Claims

A housing having a first end formed at one end and a second end formed at the other end, the housing having an inner space formed therethrough;
A plurality of fuse elements provided along the inner space in the housing and having a fusing portion melted and broken upon overloading;
A first cap provided at the first end and having a first connection leg that is electrically connected to the outside and shields one end of the internal space;
A second cap provided at the second end and shielding the other end of the inner space, and a second connection leg electrically connected to the fuse elements and electrically connected to the outside,
And a switch means movably mounted on the first cap to electrically connect one of the first cap and the fuse element.

The electronic apparatus according to claim 1, wherein a first ring is rotatably installed in the first cap, and the switch ring is installed in the first ring so as to be supported by an elastic member so as to move between the plurality of fuse elements, 1 Multi-capacity fuse that allows the cap to be electrically connected.

[3] The apparatus as claimed in claim 2, wherein the switch mechanism includes a pressing body which is in close contact with the fuse element, and both ends of the pressing body are formed with a cooperating curved surface for smooth movement of the switch mechanism, And one end of the elastic member is supported inside.

2. The device of claim 1, wherein the fuse elements are connected at one end to a connecting bus bar, the connecting bus bar is electrically connected to the second cap, and the other ends of the fuse elements are connected to an insulator, Multi-capacity fuse connected.

The fuse element according to claim 4, wherein the insulator has a fixing groove in which the end portion of the fuse element is fixed, and a selection bus bar having a tightly fitting portion that is in close contact with the surface of the fuse element fixed to the fixing groove, And the fuse element and the first cap are electrically connected to each other by the switch means.

[7] The method according to claim 5, wherein the selection bus bar is provided with a number corresponding to the fuse elements on the insulator, wherein an end portion of the elastically deformable portion capable of elastically deforming is integrally fixed to the insulator and is connected to the free end portion of the elastically deformable portion And the tightening portion is extended.

The multi-capacity fuse according to claim 1, wherein a through hole is formed in a first end of the housing, and a cap hole is formed in the first cap portion so as to correspond to the through hole, the switch hole being located.

A housing through which an internal space is formed;
A plurality of fuse elements provided in the inner space in parallel in the longitudinal direction of the housing and having a fusing part melted and broken upon overloading;
A first cap provided at one end of the housing to shield one end of the inner space and have a first connection leg electrically connected to the outside,
A second cap provided at the other end of the housing to shield the other end of the inner space and electrically connected to the fuse elements and electrically connected to the outside,
A first ring rotatably mounted on a ring channel formed around the outer surface of the first cap and electrically connected to the first cap,
And a switch means installed in the first ring and electrically connected to one of the fuse elements in accordance with rotation of the first ring.

[Claim 9] The apparatus according to claim 8, wherein the switch mechanism comprises a pressing body which is in close contact with a surface of the fuse element, and both ends of the pressing body are formed with an interlocking curved surface for guiding movement of the switch mechanism, And an elastic member having one end fixed to the first ring is inserted into the guide tube and the other end is supported.

10. The stator of claim 1, wherein a sleeve is disposed on an inner surface of the housing corresponding to a fusing end of the fuse element to prevent an arc generated at the fusing end from affecting the housing Capacitive fuse.