CN213124363U

CN213124363U - Quick-change fuse holder

Info

Publication number: CN213124363U
Application number: CN202021291474.3U
Authority: CN
Inventors: 覃克贵; 黄伟鸣; 吴施荣; 康士健
Original assignee: Anhui Lvwo Recycling Energy Technology Co Ltd
Current assignee: Anhui Lvwo Recycling Energy Technology Co Ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-05-04
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses a quick-change fuse holder, which is used for fixing a fuse on a box body and comprises an upper cover, a lower cover and a fixed seat; a pair of bolt holes are formed in the fixed seat at intervals, each bolt hole is provided with a two-end bolt, and one end of each two-end bolt is matched with a first nut to fix the two-end bolt on the fixed seat; one ends of the two double-end bolts, which are far away from the first nut, are used for respectively penetrating through the through holes at the two ends of the fuse and matching with the second nut to fix the fuse; the upper cover is connected with the fixed seat to accommodate the fuse in the accommodating groove; the lower cover is connected with one side of the fixed seat departing from the upper cover. The utility model discloses when needs are changed the fuse, only need open the upper cover and lift off the second nut alright change the fuse, avoided the operation of unpacking, improved repair efficiency. In addition, the two-end bolt is adopted for overcurrent, the structure is simple, and the assembly is convenient.

Description

Quick-change fuse holder

[ technical field ] A method for producing a semiconductor device

The utility model relates to a fuse block technical field especially relates to a quick change formula fuse block.

[ background of the invention ]

With the development of new energy technology, power batteries have been widely used in electric cars, electric motorcycles, electric bicycles, solar energy, mobile communication terminal products, energy storage products, and the like. In order to ensure the safety of the power battery, fuses are arranged in the power battery box. When the power battery causes faults such as short circuit and the like, instantaneous large current can be generated to fuse the fuse, so that the safety of the power battery is protected. However, the existing fuse is generally installed inside the box body, and when the fuse is fused, only the box cover can be opened for maintenance and replacement, which consumes a lot of working hours and is not beneficial to repair. Meanwhile, the existing quick-change fuse holder generally uses two connecting blocks for overcurrent, the structure is complex, the types of materials are increased, and the production is not facilitated.

Accordingly, there is a need to provide a quick-change fuse holder that overcomes the above-mentioned drawbacks.

[ Utility model ] content

The utility model aims at providing a quick change formula fuse seat aims at improving current fuse and changes the maintenance and need unpack and lead to expending the problem in man-hour, and the unpacking operation when having avoided reprocessing has improved reprocessing efficiency.

In order to achieve the above object, the present invention provides a quick-change fuse holder for fixing a fuse on a box body, comprising an upper cover, a lower cover and a fixing base fixed on the outer wall of the box body in a rectangular shape; the fixing seat is provided with a pair of bolt holes at intervals, each bolt hole is provided with a two-end bolt, and one end of each two-end bolt is matched with a first nut to fix the two-end bolt on the fixing seat; one ends of the two bolts far away from the first nut are used for respectively penetrating through holes at two ends of the fuse and matching with the second nut to fix the fuse; the upper cover comprises a bottom wall and a side wall extending from the edge of the bottom wall, and the bottom wall and the side wall are surrounded to form a containing groove; the upper cover is connected with the fixed seat to accommodate the fuse in the accommodating groove; the lower cover is connected with one side of the fixed seat, which deviates from the upper cover.

In a preferred embodiment, the fixing seat is provided with a through hole between the two bolt holes, and the fuse can pass through the through hole; and a circle of protective edge which is perpendicular to the surface of the fixed seat and is mutually connected is arranged at the edge of the through hole and near the two bolt holes.

In a preferred embodiment, the fixed seat is provided with thread grooves at four vertex points; the edge of the side wall is turned over along the direction far away from the containing groove to form a turned edge, and the turned edge is provided with fixing holes which correspond to the thread grooves one to one; and the first fixing screw penetrates through the fixing hole to be matched with the thread groove so as to fix the upper cover on the fixing seat.

In a preferred embodiment, the fixed seat is provided with a first embedded groove at intervals around the periphery of each thread groove; the embedded first sealing washer that has of first embedded groove.

In a preferred embodiment, the flange is provided with a second embedded groove which is surrounded along the edge of the side wall; the fixing hole is positioned outside the range surrounded by the second embedded groove; and a second sealing ring is embedded in the second embedded groove.

In a preferred embodiment, the fixing seat is further provided with a plurality of threaded holes; the threaded holes are all positioned in the range surrounded by the vertical projection of the second sealing ring on the fixed seat; and the second fixing screw penetrates through the threaded hole to be fixed with the box body.

In a preferred embodiment, the lower cover comprises a cover body and two cover plates vertically arranged at two sides of the middle part of the cover body respectively; the two cover plates are respectively provided with a buckle; the protective edge is provided with clamping grooves corresponding to the buckles one by one; the cover plate extends into the through hole to enable the buckle to be matched with the clamping groove to fixedly connect the fixing seat with the lower cover.

In a preferred embodiment, the cover body is vertically provided with a plurality of fixing brackets; and a detachable electric connection baffle is arranged between the fixed brackets.

The utility model discloses fix the fixing base at the box outer wall, seal through the upper cover. And meanwhile, a pair of bolt holes are formed, and the fuse is fixed through the matching of the two-end bolts and the second nuts. When the fuse needs to be replaced, the fuse can be replaced only by opening the upper cover and dismounting the second nut, so that the box opening operation is avoided, and the repair efficiency is improved. In addition, the two-end bolt is adopted for overcurrent, the structure is simple, and the assembly is convenient.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is an exploded perspective view of a quick-change fuse holder according to the present invention;

FIG. 2 is a perspective view of the upper cover of the quick-change fuse holder of FIG. 1 at two different angles;

FIG. 3 is a perspective view of the permanent seat of the quick-change fuse holder shown in FIG. 1;

FIG. 4 is an exploded perspective view of the anchor block of the quick-change fuse holder of FIG. 1 at two different angles;

FIG. 5 is a perspective view of a lower cover of the quick-change fuse holder of FIG. 1;

fig. 6 is a perspective view of the quick-change fuse holder of fig. 1 mounted on a housing.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.

The utility model provides a quick change fuse holder 100 for on being fixed in the outer wall of box 200 with the fuse, when avoiding changing the maintenance fuse, need open power battery package's box 200, reduced operating efficiency.

As shown in fig. 1 and 6, the quick-change fuse holder 100 includes an upper cover 10, a lower cover 20, and a fixing base 30 fixed to an outer wall of the box in a rectangular shape. The fixing seat 20 is fixed on the opening of the box body 200 by screw connection and other methods; the upper cover 10 seals one side of the fixed seat 30 close to the outside; the lower cover 20 is arranged in the box body 200, and isolates one side of the fixed seat 30 departing from the upper cover 10, so as to avoid short circuit in the box body 200.

The fixing seat 30 is in a rectangular plate shape, a pair of bolt holes 31 are arranged at intervals, and each bolt hole 31 is provided with a two-end bolt 32. In the present embodiment, the cross section of the bolt hole 31 is a regular hexagon; the model number of the two-end bolt 32 is M10, the middle of the two-end bolt is provided with a regular hexagon column 321, the two-end bolt 32 is clamped in the bolt hole 31 through the hexagon column 321, and studs at two ends of the two-end bolt 32 respectively extend out of two sides of the fixed seat 30. Furthermore, the hexagonal cylinder 321 is provided with a fixing groove 322, the inner wall of the bolt hole 31 is provided with a fixing protrusion (not shown in the figure), and when the hexagonal cylinder 321 extends into the bolt hole 31, the fixing groove 322 and the fixing protrusion are matched and clamped, so that the two bolts 32 are prevented from moving up and down in the bolt hole 31.

One end of the two-end bolt 32 is matched with the first nut 51 to fix the two-end bolt 32 on the fixed seat 30, and the two studs at the end are matched with the first nut 51 to be used for connecting a positive pole and a negative pole in the power battery box. One ends of the two-end bolts 32, which are far away from the first nuts 51, are used for respectively penetrating through the through holes 41 at the two ends of the fuse 40 and being matched with the second nuts 52 to fix the fuse 40; the fuse 40 has a cylindrical body, and two through holes 41 extend from two ends of the cylindrical body along the axial direction. The two through holes 41 of the fuse 40 are respectively fitted over one ends of the two stud bolts 32 and then fixed by the second nuts 52. Therefore, one end of the pair of stud bolts 32 is electrically connected to the positive and negative electrodes of the power battery, and the other end is electrically connected to form a circuit through the fuse 40, and when the instantaneous current generated in the circuit exceeds the current threshold of the fuse 40, the fuse 40 is fused to disconnect the electric circuit, thereby improving the safety of the power battery. When the fuse 40 needs to be replaced, only the upper cover 10 needs to be opened and the second nut 52 needs to be unscrewed, so that the operation is simple, and the replacement efficiency is improved. In addition, the fuse 40 adopts the over-current of the stud 32, the structure is simple, the assembly is convenient, and the situations that the over-current of two connecting blocks is commonly used for the existing quick-change fuse holder, the structure is complex and the types of materials are increased are avoided.

The upper cover 10 includes a bottom wall 11 and a side wall 12 extending from an edge of the bottom wall 11, the bottom wall 11 and the side wall 12 enclose a receiving slot 13, and the upper cover 10 is connected to the fixing base 30 to receive the fuse 40 in the receiving slot 13.

The fixing base 30 has a through hole 33 between the two bolt holes 31 for passing the fuse, and the cylindrical body of the fuse 40 is disposed in the through hole 33. The border of via hole 33 and the vicinity of two bolt holes 31 are equipped with the protection limit 34 of a round perpendicular to fixing base 30 surface interconnect, and protection limit 34 perpendicular to fixing base 30's surface encloses into an enclosure space with two bolt holes 31 and via hole 33, has played insulating, has increased creepage distance waterproof etc. effect.

Further, in one embodiment, the fixing base 30 is provided with screw grooves 35 at four vertices, and one end of each screw groove 35 is closed. The edge of the sidewall 12 is turned over in the direction away from the receiving slot 13 to form a turned edge 14, and in this embodiment, the shape and size of the edge of the turned edge 14 are consistent with the edge of the fixing seat 30 and are parallel to the surface of the fixing seat 30. The flange 14 is provided with fixing holes 141 corresponding to the thread grooves 35 one by one, the first fixing screws 53 pass through the fixing holes 141 to cooperate with the thread grooves 35 to fix the upper cover 10 on the fixing base 30, and at this time, the portion of the fuse 40 close to the upper cover 10 is accommodated in the accommodating groove 13.

Further, the fixed seat 30 is provided with a first inner embedding groove 351 at the periphery of each thread groove 35 at intervals; the first inner insertion groove 351 is embedded with a first sealing ring 352. That is, each first insertion groove 351 is formed to surround the corresponding screw groove 35 at intervals, and is inserted with a first seal ring 352. When the first fixing screw 53 is fixed to the screw groove 35, the first sealing ring 352 can prevent water from penetrating into the fixing base 30 through the fixing hole 141, thereby preventing a short circuit and other potential safety hazards.

Furthermore, the flange 14 is provided with a second embedded groove 142 surrounding along the edge of the sidewall 12, the fixing hole 141 is located outside the range surrounded by the second embedded groove 142, and the second embedded groove 142 is provided with a plurality of clamping bumps 143 for facilitating the embedding of a second sealing ring 144. The second sealing ring 144 encloses the receiving groove 13 of the upper cover 10, and when the upper cover 10 is tightly attached to the fixing base 30, the water is prevented from entering the receiving groove 13 at the joint gap between the upper cover and the fixing base, so that potential safety hazards are avoided.

Further, in an embodiment, the fixing base 30 further defines a plurality of threaded holes 36, and the threaded holes 36 are all located in a range surrounded by a vertical projection of the second sealing ring 144 on the fixing base 30, that is, water cannot enter the receiving groove 13 of the upper cover 10 through the threaded holes 36. The second fixing screw 54 is fixed to the corresponding coupling hole groove of the case 200 through the screw hole 36. It can be understood that the peripheral side of the threaded hole is also provided with a seal structure similar to the first inner caulking groove 351 and the first seal ring 352. Therefore, the fixing seat 30 is fixed on the outer wall of the box body 200, and then the upper cover 10 is fixed on the fixing seat 30 to seal the fixing seat 30, so that the potential safety hazard caused by water entering the fixing seat 30 is avoided on the premise of facilitating replacement and maintenance of the fuse 40.

The embodiment of the utility model provides an in, lower cover 20 is located in box 200 and is connected with one side that fixing base 30 deviates from upper cover 10, accepts the part that deviates from upper cover 10 one side fuse 40 and keeps apart, avoids touching the short circuit that causes by mistake with other components and parts in the box 200. Specifically, the lower cover 20 includes a rectangular cover body 21 and two cover plates 22 respectively and vertically disposed at two sides of the middle portion of the cover body 21, that is, the two cover plates 22 are respectively disposed at two sides of the middle portion of the cover body 21. Two apron 22 all are equipped with buckle 221, and the draw-in groove 341 with buckle 221 one-to-one is seted up to protective edge 34, and apron 22 makes buckle 221 and draw-in groove 341 cooperate in stretching into via hole 33 with fixing base 30 and lower cover 20 fixed connection, simple structure, convenient assembling.

Further, the cover 21 is vertically provided with a plurality of fixing brackets 23. Detachable electric connection baffle plates 24 are arranged between the fixing support 23 and the cover plate 22 and between the adjacent fixing supports 23 to form an integrated structure connected with each other. Specifically, the two cover plates 22 are recessed inwards and provided with a plurality of escape positions, so as to be matched with the structure of the protection plate 34. The cover body 21 can be provided with lightening holes 25 to lighten the weight. A reinforcing rib structure may be disposed at the joint of the upper cover 10 and the lower cover 20 to improve the stability of the upper cover 10 and the lower cover 20.

To sum up, the utility model discloses fix fixing base 30 at the box 200 outer wall, seal through upper cover 10. A pair of bolt holes 31 are formed at the same time, and the fuse 40 is fixed by the cooperation of the bolts 32 at both ends and the second nuts 52. When the fuse 40 needs to be replaced, the fuse 40 can be replaced only by opening the upper cover 10 and detaching the second nut 52, so that the box opening operation is avoided, and the repair efficiency is improved. In addition, the two-end bolt 32 is adopted for overcurrent, so that the structure is simple and the assembly is convenient.

The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. A quick-change fuse holder is used for fixing a fuse on a box body and is characterized by comprising an upper cover, a lower cover and a fixing seat which is fixed on the outer wall of the box body in a rectangular shape; the fixing seat is provided with a pair of bolt holes at intervals, each bolt hole is provided with a two-end bolt, and one end of each two-end bolt is matched with a first nut to fix the two-end bolt on the fixing seat; one ends of the two bolts far away from the first nut are used for respectively penetrating through holes at two ends of the fuse and matching with the second nut to fix the fuse; the upper cover comprises a bottom wall and a side wall extending from the edge of the bottom wall, and the bottom wall and the side wall are surrounded to form a containing groove; the upper cover is connected with the fixed seat to accommodate the fuse in the accommodating groove; the lower cover is connected with one side of the fixed seat, which deviates from the upper cover.

2. The quick-change fuse holder according to claim 1, wherein the holder defines a through hole between the two bolt holes for the fuse to pass through; and a circle of protective edge which is perpendicular to the surface of the fixed seat and is mutually connected is arranged at the edge of the through hole and near the two bolt holes.

3. The quick-change fuse holder according to claim 1, wherein the holder is threaded near each of the four vertices; the edge of the side wall is turned over along the direction far away from the containing groove to form a turned edge, and the turned edge is provided with fixing holes which correspond to the thread grooves one to one; and the first fixing screw penetrates through the fixing hole to be matched with the thread groove so as to fix the upper cover on the fixing seat.

4. The quick-change fuse holder according to claim 3, wherein the holder is provided with first recessed grooves at intervals around the periphery of each of the threaded grooves; the embedded first sealing washer that has of first embedded groove.

5. The quick-change fuse holder according to claim 3, wherein the flange defines a second recessed channel that is surrounded along an edge of the side wall; the fixing hole is positioned outside the range surrounded by the second embedded groove; and a second sealing ring is embedded in the second embedded groove.

6. The quick-change fuse holder according to claim 5, wherein the holder further defines a plurality of threaded holes; the threaded holes are all positioned in the range surrounded by the vertical projection of the second sealing ring on the fixed seat; and the second fixing screw penetrates through the threaded hole to be fixed with the box body.

7. The quick-change fuse holder according to claim 2, wherein the lower cover comprises a cover body and two cover plates vertically arranged at two sides of the middle part of the cover body respectively; the two cover plates are respectively provided with a buckle; the protective edge is provided with clamping grooves corresponding to the buckles one by one; the cover plate extends into the through hole to enable the buckle to be matched with the clamping groove to fixedly connect the fixing seat with the lower cover.

8. The quick-change fuse holder according to claim 7, characterized in that the cover is vertically provided with a plurality of fixing brackets; and a detachable electric connection baffle is arranged between the fixed brackets.