CN207966911U - A kind of fuse and battery pack - Google Patents

Abstract

The utility model provides a kind of fuse, including shell, first terminal, Second terminal and melt, the first terminal and Second terminal are connect with the shell, institute's enclosure interior is provided at least two mutually isolated accommodating chambers, there are one the melts for setting in each accommodating chamber, one end of the melt is electrically connected with first terminal, and the other end is electrically connected with Second terminal.Fuse provided by the utility model, arc quenching effect is good, and each melt not will produce the intersection of electric arc when fusing, not interfere with arc extinguishing.Meanwhile the utility model additionally provides a kind of battery pack containing above-mentioned fuse.

Description

A kind of fuse and battery pack

Technical field

The utility model is related to circuit protection component field more particularly to a kind of fuse and battery packs.

Background technology

Currently on the market, pair can lead to high current fuse use it is more and more extensive；And in high-current fuse protector, make more It is connected with the mode of multiple melts parallel connection；Because melt quantity is more, the electric arc between when fusing each melt can occur to intersect shadow It rings, the difficulty of arc extinguishing can be increased, influence arc quenching effect.

Invention content

It is good that the purpose of this utility model is to provide a kind of arc quenching effects, and each melt not will produce the friendship of electric arc when fusing Fork, does not interfere with the fuse of arc extinguishing.

In order to solve the above technical problems, the technical solution of the utility model is：

The utility model provides a kind of fuse, including shell, first terminal, Second terminal and melt, and described first Terminal and Second terminal are connect with the shell, and institute's enclosure interior is provided at least two mutually isolated accommodating chambers, Mei Gesuo Stating setting in accommodating chamber, there are one the melts, one end of the melt to be electrically connected with first terminal, the other end and Second terminal Electrical connection.

In fuse provided by the utility model, at least two mutually isolated accommodating chambers, Mei Gerong is arranged in enclosure interior There are one melts for intracavitary of receiving setting；The setting of multiple melts meets the conveyance capacity to high-current fuse protector and action at present The requirement of sensitivity；Meanwhile multiple melts are mounted in different accommodating chambers, and it is mutually isolated each other, so can Realize the isolation between melt so that melt will not adversely affect its other adjacent melt when fusing, and reduce Arc extinguishing difficulty, improves arc quenching effect.

In some embodiments, the accommodating chamber is the chamber for the second end that the shell is through to by the first end of the shell Body, the first terminal are equipped with the first end in the shell, the receiving for sealing the first end positioned at the shell Chamber is open；The Second terminal is equipped with the second end in the shell, for sealing the second end positioned at the shell Accommodating chamber is open.

In some embodiments, the accommodating chamber opening is provided with melt locating slot, and the end set of the melt, which has, determines Position portion, the positioning region cooperation are located in the melt locating slot.

In some embodiments, the first end of the shell and/or the end set of second end have a metal layer, and described first Terminal is welded with the first end of the shell and/or the Second terminal and the second end of the shell by the metal layer Connection.

In some embodiments, the first end of the shell and/or the end set of second end have arc-extinguishing medium injection hole, institute State position corresponding with the arc-extinguishing medium injection hole in first terminal and/or Second terminal be provided with arc-extinguishing medium injection connect Mouthful.

In some embodiments, the accommodating chamber is that section is rectangular or circular cavity.

In some embodiments, there are four accommodating chambers for the enclosure interior setting, and four accommodating chambers are between each other by ten Font partition board is isolated, and the arc-extinguishing medium injection hole is located at the cross searching crossover location of the cross partition.

In some embodiments, the positioning region is arranged perpendicular to the melt.

In some embodiments, the first terminal includes first terminal interconnecting piece and first terminal lead division, and described first Terminal leads are equipped with the first end in the shell；The Second terminal includes Second terminal interconnecting piece and Second terminal Lead division, the Second terminal lead division are equipped with the second end in the shell.

In some embodiments, the first mounting groove, the Second terminal interconnecting piece are provided on the first terminal interconnecting piece On be provided with the second mounting groove.

The utility model additionally provides a kind of battery pack, includes several single batteries and peace of the connection of mutual series/parallel Fuse in battery pack, wherein the fuse is fuse provided by the utility model.

Fuse provided by the utility model is reduced using the safety in battery pack, improving battery pack because going out Risk caused by arc possibility not in place.

Description of the drawings

Fig. 1 is in the utility model one embodiment, and fuse overall structure assembles explosive view.

Fig. 2 is the schematic diagram at the end visual angle of shell in the utility model one embodiment.

Fig. 3 is the overall structure diagram of fuse in the utility model one embodiment.

Reference numeral includes：

Shell 10；First end 11；Second end 12；Accommodating chamber 13；Melt locating slot 131；First terminal 20；First Terminal connection part 201；First terminal lead division 202；First mounting groove 203；Second terminal 30；Second terminal interconnecting piece 301；Second terminal lead division 302；Second mounting groove 303；Melt 40；Positioning region 401；Arc-extinguishing medium injection hole 51；It goes out Arc medium grouting socket 52；Cross partition 60.

Specific implementation mode

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by The embodiment that refer to the attached drawing 1~3 describes is exemplary, it is intended to for explaining the utility model, and should not be understood as to this reality With novel limitation.

In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indicates or imply Signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to this The limitation of utility model.

In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more this feature.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be Mechanical connection can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.

Fuse provided by the utility model is specifically described in detail below in conjunction with attached drawing 1 to attached drawing 3.

As shown in Figure 1, in one embodiment, a kind of fuse, including shell 10, first terminal 20, second end are provided Son 30 and melt 40, first terminal 20 and Second terminal 30 are connect with shell 10.Shell 10 is internally provided at least two mutually The accommodating chamber 13 of isolation, there are one melt 40, one end of melt 40 is electrically connected the interior setting of each accommodating chamber 13 with first terminal 20, The other end is electrically connected with Second terminal 30.

At least two mutually isolated accommodating chambers 13 are arranged in 10 inside of shell, and there are one melts for the interior setting of each accommodating chamber 13 40；The setting of multiple melts 40 meets the requirement of the conveyance capacity and action sensitivity to high-current fuse protector at present；Together When, multiple melts 40 are mounted in different accommodating chambers 13, and mutually isolated each other, can so realize melt 40 it Between isolation so that melt 40 fuse when its other adjacent melt 40 will not be adversely affected, reduce arc extinguishing hardly possible Degree, improves arc quenching effect.

Shell 10 is that melt 40 provides installation space, on the one hand provides comparison safe use environment for melt 40, prevents Melt 40 is during normal use broken due to the outer force effect of vibrations or foreign, influences the normal use of fuse；It is another Aspect, because where the function of fuse, under excess temperature or overcurrent condition, melt 40 can all fuse, and fusing will produce electric arc, And shell 10 is the installation space that melt 40 provides（Accommodating chamber 13）Play the role of good arc extinguishing, while can also accommodate It is filled with arc quenching material or arc extinguishing gases in chamber 13, further increases arc extinction performance.

And in existing high-current fuse protector, it is generally used multiple melts 40 and carries out scheme in parallel.In this scheme On the basis of, when multiple melts 40 fuse, the electric arc of generation can be to having an adverse effect, therefore, in above-mentioned implementation between each other In example, at least two mutually isolated accommodating chambers 13 of setting inside shell 10 are used, installation is corresponded in each accommodating chamber 13 One melt 40, in this way, when melt 40 fuses, electric arc does not interfere with other melts 40, ensure that arc extinction performance and entirety Safety.

In some embodiments of the utility model, 99% aluminium oxide ceramics may be used in shell 10.Certainly, remove this it Outside, some can also select 95% aluminium oxide ceramics, 92% aluminium oxide ceramics, zirconia ceramics, steatite ceramic, aluminium nitride ceramics Any one in.

And the metal layer of the end set of the first end 11 and/or second end 12 of shell 10, it mostly uses in silver, nickel or tin One kind.

One or more of silver, aluminium, copper, iron, zinc, nickel may be used in melt 40.

First terminal 20 and Second terminal 30 can be selected from or be respectively selected from jointly one or more of copper, iron, zinc.

Wherein, arc-extinguishing medium can be selected from one kind in insulating oil, sulfur hexafluoride gas.

As shown in Figure 1, in the utility model one embodiment, the accommodating chamber 13 of shell 10 is the first end 11 by shell 10 It is through to the cavity of the second end 12 of shell 10, first terminal 20 is equipped with the first end 11 in shell 10, is used for sealing position It is open in the accommodating chamber 13 of the first end 11 of shell 10；Second terminal 30 is equipped with the second end 12 in shell 10, for close Envelope is open positioned at the accommodating chamber 13 of the second end 12 of shell 10.

Wherein, as shown in Figure 1, shell 10 is cuboid shell 10, shell 10 is internally provided with 4 accommodating chambers 13, often A accommodating chamber 13 is the length direction extension along cuboid shell 10；Meanwhile accommodating chamber 13 runs through cuboid shell 10, Accommodating chamber 13 is all formed at the both ends of cuboid shell 10 to be open, first terminal 20 and Second terminal 30 are respectively cooperating with setting and exist The first end 11 and second end 12 of shell 10；That is, the accommodating chamber 13 of the first end 11 of 20 seal casinghousing 10 of first terminal is open, the The accommodating chamber 13 of the second end 12 of 30 seal casinghousing 10 of two-terminal is open.By first terminal 20 and Second terminal 30 by shell 10 Internal accommodating chamber 13 is sealed, and realizes the protection to the melt 40 in accommodating chamber 13, meanwhile, it also allows for receiving It is filled with arc extinguishing gases in chamber 13, realizes arc-suppression function.

Under normal circumstances, first end 11, the second end 12 of Second terminal 30 and shell 10 of first terminal 20 and shell 10 It links together by welding.In the utility model, the mode being commonly threadedly coupled in traditional design is not used, no With thread mill drilling or threaded connector on shell 10 and first terminal 20 or Second terminal 30；On the one hand, it is welded to connect energy The leakproofness of enough accommodating chambers 13 for ensureing shell 10 to the greatest extent；On the other hand, space is also saved, difficult processing is reduced Degree, automated production of being more convenient for.

As described in Figure 2, in the utility model one embodiment, can 13 opening of accommodating chamber be provided with melt locating slot 131, while thering is positioning region 401, the cooperation of positioning region 401 to be located in melt locating slot 131 in the end set of melt 40.Such as Melt 40, is first mounted on by the cooperation of positioning region 401 and melt locating slot 131 inside shell 10 by this；Then first is retell Terminal 20 and Second terminal 30 are welded on the first end 11 and second end 12 of shell 10, and melt 40 is sealed in accommodating chamber 13.

In some embodiments, as depicted in figs. 1 and 2, positioning region 401 is arranged perpendicular to melt 40.In Fig. 1, first The part that terminal 20 and Second terminal 30 are connect with shell 10 is plates, and the plates are vertical with the length direction of shell 10； With this condition, the main part of melt 40 should be the length direction extension along shell 10, and for the ease of positioning region 401 Installation, positioning region 401 is arranged perpendicular to melt 40.

Melt locating slot 131 that is corresponding, being arranged in the first end 11 or second end 12 of shell 10, to be parallel to One end 11 or second end 12 are arranged；In this way, installation can be relatively easy to perpendicular to the positioning region of melt 40 401 after bending In the melt locating slot 131, the mating connection of positioning region 401 and melt locating slot 131 is realized.

In order to improve the weldering of the first end 11 of shell 10 and the second end 12 and Second terminal 30 of first terminal 20, shell 10 Reliability is connect, has metal layer, first terminal 20 and shell in the first end 11 of shell 10 and/or the end set of second end 12 10 first end 11 and/or Second terminal 30 and the second end 12 of shell 10 is welded to connect by metal layer.Improve welding Reliability has been also convenient for being welded to connect process.

As shown in Figure 1, Figure 2 or shown in Fig. 3, the first end 11 of shell 10 and/or the end set of second end 12 have arc-extinguishing medium Position corresponding with arc-extinguishing medium injection hole 51 is provided with arc extinguishing Jie in injection hole 51, first terminal 20 and/or Second terminal 30 Matter grouting socket 52.

After assembling, arc-extinguishing medium grouting socket 52 is aligned with arc-extinguishing medium injection hole 51；Then it is noted by arc-extinguishing medium The cooperation of incoming interface 52 and arc-extinguishing medium injection hole 51 is filled with arc extinguishing gases into accommodating chamber 13.In some embodiments, arc extinguishing The arc extinguishing gases that medium is mentioned above in some suitable scenes, can also use liquid arc-extinguishing medium certainly, as long as Good arc quenching effect can be reached.

In the embodiment shown in fig. 1, it is rectangular cavity that accommodating chamber 13, which is section,；Different cavity geometries, cooperation Different melts 40 and different first terminals 20 and Second terminal 30.In the present invention, above-mentioned rectangular cavity can be with It is square, rectangle or other polygons；Meanwhile other than rectangular, common circle, ellipse or other abnormity knots Structure is also available in the present invention.

In the present embodiment, the design of 12 melt locating slot 131 of first end 11 and second end is convenient in the design of square cavity, Also allow for 30 connection of first terminal 20 and Second terminal simultaneously.

As shown in Fig. 1, figure, shell 10 is internally provided with four accommodating chambers 13, and four accommodating chambers 13 are between each other by cross Shape partition board 60 is isolated, and arc-extinguishing medium injection hole 51 is located at the cross searching crossover location of cross partition 60.

In the present invention, at least two accommodating chambers 13 inside shell 10, can according to specific structural requirement, if Different shapes is counted into, four accommodating chambers 13 in embodiment as above form the cavity of matrix pattern, by cross among matrix pattern Partition board 60 is isolated, and arc-extinguishing medium injection hole 51 is located at center.

As shown in Fig. 2, the first terminal 20 includes first terminal interconnecting piece 201 and first terminal lead division 202, it is described First terminal lead division 202 is equipped with the first end 11 in the shell 10；The Second terminal 30 connects including Second terminal Socket part 301 and Second terminal lead division 302, the Second terminal lead division 302 are equipped with the second end in the shell 10 12。

Wherein, first terminal interconnecting piece 201 and Second terminal interconnecting piece 301 respectively as fuse anode and cathode, For fuse to be linked into major loop or by protective loop.

As shown in Fig. 2, first terminal interconnecting piece 201 and first terminal lead division 202 constitute L-shaped structure, L-shaped vertical side It is welded to shell 10, L-shaped horizontal direction with external structure for connecting.

In another embodiment of the utility model, the first mounting groove 203 is set on first terminal interconnecting piece 201, the The second mounting groove 303 is provided on two-terminal interconnecting piece 301；First mounting groove 203 and the second mounting groove 303 are used for and outside Connection.Wherein, the first mounting groove 203 and the second mounting groove 303 can be designed to U-type groove.

The utility model further additionally provides a kind of battery pack, includes several single batteries of mutual series/parallel connection And the fuse in battery pack, above-mentioned fuse are fuse provided by the utility model.

In battery pack, need to generally require whole to battery pack single battery progress safeguard protection under certain condition Body is powered off, and to protect battery pack, prevents it from exploding or burning.In the protective loop, fuse just plays prodigious Safeguard protection acts on, and under battery pack excess temperature or overcurrent condition, fuse can all fuse, in this way, just being played very to battery pack Good safeguard protection effect.

Fuse provided by the utility model can obstruct electric arc when multiple melts 40 fuse and intersect, improve arc extinguishing effect Fruit；The welding of first terminal 20 and Second terminal 30 and shell 10 can improve the leakproofness of the accommodating chamber 13 of fuse, reduce The risk that 40 Long Term Contact air of melt is aoxidized, to avoid the influence to fusing performance and service life.

The utility model known in summary is having above-described good characteristic, is able to enable it in use, is promoted The efficiency that does not have in conventional art and there is practicability, become the product of a great practical value.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Any modification, equivalent replacement or improvement etc., should be included in the utility model made by within the thought and principle of utility model Protection domain within.

Claims (11)

1. a kind of fuse, which is characterized in that including shell, first terminal, Second terminal and melt, the first terminal and Two-terminal is connect with the shell, and institute's enclosure interior is provided at least two mutually isolated accommodating chambers, each accommodating chamber There are one the melt, one end of the melt to be electrically connected with first terminal for interior setting, and the other end is electrically connected with Second terminal.

2. fuse according to claim 1, which is characterized in that the accommodating chamber is to be run through by the first end of the shell To the cavity of the second end of the shell, the first terminal is equipped with the first end in the shell, is located at for sealing The accommodating chamber of the first end of the shell is open；The Second terminal is equipped with the second end in the shell, for sealing Positioned at the accommodating chamber opening of the second end of the shell.

3. fuse according to claim 2, which is characterized in that the accommodating chamber opening is provided with melt locating slot, The end set of the melt has positioning region, the positioning region cooperation to be located in the melt locating slot.

4. fuse according to claim 2, which is characterized in that the first end of the shell and/or the end of second end It is provided with metal layer, the of the first end and/or the Second terminal of the first terminal and the shell and the shell Two ends are welded to connect by the metal layer.

5. fuse according to claim 2, which is characterized in that the first end of the shell and/or the end of second end It is provided with arc-extinguishing medium injection hole, position corresponding with the arc-extinguishing medium injection hole on the first terminal and/or Second terminal It installs and is equipped with arc-extinguishing medium grouting socket.

6. fuse according to claim 1, which is characterized in that the accommodating chamber is that section is rectangular or circular chamber Body.

7. fuse according to claim 5, which is characterized in that there are four accommodating chambers for the enclosure interior setting, described Four accommodating chambers are isolated by cross partition between each other, and the arc-extinguishing medium injection hole is located at the cross of the cross partition Central crossbar position.

8. fuse according to claim 3, which is characterized in that the positioning region is arranged perpendicular to the melt.

9. fuse according to claim 2, which is characterized in that the first terminal includes first terminal interconnecting piece and One terminal leads, the first terminal lead division are equipped with the first end in the shell；The Second terminal includes the Two-terminal interconnecting piece and Second terminal lead division, the Second terminal lead division are equipped with the second end in the shell.

10. fuse according to claim 9, which is characterized in that be provided with the first peace on the first terminal interconnecting piece Tankage is provided with the second mounting groove on the Second terminal interconnecting piece.

11. a kind of battery pack, including several single batteries of mutual series/parallel connection and the fusing in battery pack Device, which is characterized in that the fuse is the fuse described in claims 1 to 10 any one.