CN209401593U - A kind of fuse - Google Patents

Abstract

The utility model discloses a kind of fuse, including ceramic tube body and the fuse of the ceramics tubular body is set, ceramic tube body includes upper body half and lower body half, the inner wall of upper body half and the inner wall of lower body half are convexly equipped with multiple barrier blocks, fuse is in buckling curve shape under the barrier of multiple barrier blocks, several first springs are provided between upper body half and lower body half, the both ends of ceramic tube body each extend into end cap, at least it is divided into column regions and conical region in end cap, the wall surface of column regions is equipped with retention bead, ceramic tube wall upper limit groove, the both ends of ceramic tube body are each provided with two voussoirs, fuse is located between two voussoirs, the diameter of conical region gradually becomes smaller along the direction far from ceramic tube body, there is the tapered slope matched with conical region wall surface on voussoir.The operation of change of fuse is relatively easy, it is ensured that ceramic tube body is used repeatedly, and is effectively reduced the waste of resource.

Description

A kind of fuse

Technical field

The utility model relates to safety device technical fields, it particularly relates to a kind of fuse.

Background technique

The effect of fuse is constantly increased along with electric current, and raised electricity when circuit malfunctions or exception Stream is possible to certain important devices in damage circuit, it is also possible to burn circuit or even cause fire.If in circuit correctly Fuse is disposed, then fuse will be when current anomaly be increased to certain height and temperature, itself fusing is cut Power-off stream, to play the role of protecting circuit safety operation.When being that fuse is powered, made by the heat that electric energy is converted fusible The temperature of body rises.When running current or the overload current of permission pass through, the heat of generation by fusable links, outer housing to Ambient radiation progressivelyes reach balance by modes, the heats of the heat and generation that distribute such as convection current conduction.If generated Heat is greater than the heat distributed, and extra heat is just gradually accumulated in fusable links, increase fusible temperature, when temperature reaches When with being more than the fusing point of fusable links, fusable links will be made to melt, fusing and cut off electric current, playing the work of safety protective circuit With.

Existing fuse includes tube body, fuse, end cap etc., and this fuse is Bullet structure, when the fuse in pipe is molten After disconnected, which scraps, and can not be recycled, result in waste of resources.

For the problems in the relevant technologies, currently no effective solution has been proposed.

Utility model content

For above-mentioned technical problem in the related technology, the utility model proposes a kind of fuses, after fuse failure, Fuse can be reinstalled to be reused, the waste of resource is reduced.

To realize the above-mentioned technical purpose, the technical solution of the utility model is achieved in that

Including ceramic tube body and the fuse of the ceramics tubular body, the ceramics tube body packet is arranged in a kind of fuse Include upper body half and lower body half, the inner wall of the inner wall of the upper body half and the lower body half is convexly equipped with multiple barriers Block, multiple barrier blocks are uniformly distributed along the axial direction of the ceramic tube body, barrier blocks in the upper body half and it is described under The interlaced setting of barrier blocks on half tube body, the fuse are in buckling curve shape under the barrier of multiple barrier blocks, Several first springs are provided between the upper body half and the lower body half, the both ends of the ceramics tube body each extend into end cap It is interior, column regions and conical region are at least divided into the end cap, the wall surface of the column regions is equipped with retention bead, described The limiting groove matched with the retention bead is provided on ceramic tube wall, the both ends of the ceramics tube body are each provided with Clamping part corresponding with the fuse, the clamping part include at least two voussoirs, and the fuse is located at two voussoirs Between, the diameter of the conical region gradually becomes smaller along the direction far from the ceramic tube body, have on the voussoir with it is described The tapered slope that conical region wall surface matches.

Further, the barrier blocks triangular shape.

Further, the end cap and the voussoir are conductor.

Further, the fuse is conductively connected the end cap by the voussoir.

The utility model has the beneficial effects that the operation of change of fuse is relatively easy, it is ensured that ceramic tube body repeatedly weighs It is multiple to utilize, it is effectively reduced the waste of resource, using the fuse of curve shape in fusing, the fuse point at ceramic tube body both ends From spacing than very fast so that the fuse go ETAD expected time of arrival and departure is short, obstruct the fuse go by the several piece barrier blocks on ceramic tube body The electric arc that fuse burning generates when opening, can quickly block electric arc, reduce the generation of fuse internal heat.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other attached drawings.

Fig. 1 is the cross-sectional view of the fuse according to the utility model embodiment.

In figure:

1, conical region；2, end cap；3, fuse；4, upper body half；5, lower body half；6, barrier blocks；7, the first spring；8, Voussoir；9, retention bead.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to In the range of the utility model protection.

As shown in Figure 1, a kind of fuse according to the utility model embodiment, including ceramic tube body and setting exist The fuse 3 of the ceramics tubular body, the ceramics tube body includes upper body half 4 and lower body half 5, the upper body half 4 it is interior The inner wall of wall and the lower body half 5 is convexly equipped with multiple barrier blocks 6, axis of multiple barrier blocks 6 along the ceramic tube body It is uniformly distributed to direction, the interlaced setting of barrier blocks 6 in barrier blocks 6 and the lower body half 5 in the upper body half 4, institute Fuse 3 is stated under the barrier of multiple barrier blocks 6 in buckling curve shape, the upper body half 4 and the lower body half 5 it Between be provided with several first springs 7, the both ends of the ceramics tube body each extend into end cap 2, are at least divided into cylindricality in the end cap 2 Region and conical region 1, the wall surfaces of the column regions are equipped with retention bead 9, be provided on the ceramics tube wall with The both ends of the limiting groove that the retention bead 9 matches, the ceramics tube body are each provided with folder corresponding with the fuse 3 Portion is held, the clamping part includes at least two voussoirs 8, and the fuse 3 is located between two voussoirs 8, the conical region Diameter gradually become smaller along the direction far from the ceramic tube body, have on the voussoir 8 and the conical region wall surface match The tapered slope of conjunction.

In a specific embodiment of the utility model, 6 triangular shape of barrier blocks.

In a specific embodiment of the utility model, the end cap 2 and the voussoir 8 are conductor.

In a specific embodiment of the utility model, the fuse 3 is conductively connected the end cap by the voussoir 8 2。

In order to facilitate the above-mentioned technical proposal for understanding the utility model, below by way of specifically used mode to the utility model Above-mentioned technical proposal be described in detail.

Upper body half 4, which is pressed on lower body half 5, constitutes ceramic tube body, and the column in end cap 2 is inserted at the both ends of ceramic tube body In shape region, the retention bead 9 on the wall surface of column regions is caught in the limiting groove of ceramic tube body, in the effect of the first spring 7 Under, upper body half 4, lower body half 5, end cap 2 are realized from locking, for convenience of fixed and positioned, the upper body half 4 of the first spring 7 With the blind hole matched with the first spring 7 is provided on lower body half 5.

Clamping part includes that at least two voussoirs 8, voussoir 8 are located in the conical region in end cap 2, have on voussoir 8 up and down The tapered slope matched with conical region wall surface is located at ceramic tube body when end cap 2 is inserted in respectively in the both ends of ceramic tube body Opposite sliding can occur with conical region wall surface for the tapered slope of the voussoir 8 at both ends, and then be forced up and down by conical region Two voussoirs 8 are close to each other, and then clamp fuse 3 by upper and lower two voussoirs 8, under the action of conical region, voussoir 8, Fuse 3 is realized from locking.

Conductive contact between voussoir 8 and fuse 3, voussoir 8, end cap 2 are conductor.Voussoir 8 connects with 2 direct conduction of end cap Touching.

Fuse 3 realizes the conductive connection with end cap 2 by voussoir 8.

There are multiple barrier blocks 6, fuse 3 is in buckling curve shape under the barrier of barrier blocks 6, using song in ceramic tube body For the fuse 3 of wire shaped in fusing, the isolated spacing of the fuse 3 at ceramic tube body both ends is than very fast, when so that the fuse disconnecting Between it is short, wherein for the ease of cut off fuse 3,6 triangular shape of barrier blocks.In the present embodiment, 4 inner wall of upper body half is by upper Protruding out two pieces of barrier blocks 6 down, 5 inner wall of lower body half has protruded out three pieces of barrier blocks 6 from lower to upper, and intracorporal five pieces of ceramic tube The alternate setting of barrier blocks 6.When the fuse 3 of the fuse fuses, what five pieces of barrier blocks 6 together generated the fusing of fuse 3 Electric arc is obstructed, and the arc extinguishing ability of fuse is improved, and is reduced the heat generated in 3 fusing process of fuse, is avoided fuse The generation of spontaneous combustion explosion danger.

In use process, after fuse 3 fuses, upper body half 4 and lower body half 5 are pressed, makes to be located at 4 He of upper body half The first spring 7 compression between lower body half 5, until the retention bead 9 of end cap 2 is deviate from out of limiting groove, then by end cap 2 It is unloaded together with voussoir 8, upper body half 4 and lower body half 5 is separated, take out the fuse 3 being broken, then interception is corresponding long The fuse 3 of degree is mounted between upper body half 4 and lower body half 5, voussoir 8 is fitted into the column regions of end cap 2, is pressed again The two is protruded into the end cap 2 equipped with voussoir 8 after upper body half 4 and lower body half 5, in loading procedure, the one of the opening of end cap 2 Preferably downward, to facilitate fuse 3 to protrude between two voussoirs 8, being caught in retention bead 9 in limiting groove be can be realized at end The replacement of fuse 3, whole process is convenient and efficient, while the tapered zone after retention bead 9 is caught in limiting groove, in end cap 2 Domain can squeeze upper and lower two voussoirs 8, close up upper and lower two voussoirs 8, and to clamp fuse 3, fuse 3 passes through the notch on voussoir 8 Slot is positioned.

In conclusion the operation of change of fuse is relatively easy by means of the above-mentioned technical proposal of the utility model, it can Guarantee that ceramic tube body is used repeatedly, is effectively reduced the waste of resource, using the fuse of curve shape in fusing, pottery The spacing of the fuse separation at porcelain tube body both ends is than comparatively fast, so that the fuse go ETAD expected time of arrival and departure is short, passing through the several piece on ceramic tube body Barrier blocks obstruct the electric arc that fuse burning generates when fuse disconnects, and can quickly block electric arc, reduce heat inside fuse The generation of amount.

The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (4)

1. a kind of fuse, including ceramic tube body and the fuse (3) of the ceramics tubular body is set, which is characterized in that institute Stating ceramic tube body includes upper body half (4) and lower body half (5), the inner wall and the lower body half (5) of the upper body half (4) Inner wall be convexly equipped with multiple barrier blocks (6), multiple barrier blocks (6) are uniformly distributed along the axial direction of the ceramic tube body, institute State the barrier blocks (6) on upper body half (4) and barrier blocks (6) interlaced setting on the lower body half (5), the fuse It (3) is in buckling curve shape under the barrier of multiple barrier blocks (6), the upper body half (4) and the lower body half (5) Between be provided with several first springs (7), the both ends of the ceramics tube body each extend into end cap (2), in the end cap (2) at least It is divided into column regions and conical region (1), the wall surface of the column regions is equipped with retention bead (9), and the ceramic tube is external Be provided with the limiting groove matched with the retention bead (9) on wall, the both ends of the ceramics tube body be each provided with it is described The corresponding clamping part of fuse (3), the clamping part include at least two voussoirs (8), and the fuse (3) is located at two wedges Between block (8), the diameter of the conical region gradually becomes smaller along the direction far from the ceramic tube body, has on the voussoir (8) There is the tapered slope matched with the conical region wall surface.

2. fuse according to claim 1, which is characterized in that barrier blocks (6) triangular shape.

3. fuse according to claim 1, which is characterized in that the end cap (2) and the voussoir (8) are conductor.

4. fuse according to claim 3, which is characterized in that the fuse (3) is conductively connected by the voussoir (8) The end cap (2).