CN213752605U

CN213752605U - Fuse for automobile

Info

Publication number: CN213752605U
Application number: CN202023119667.3U
Authority: CN
Inventors: 詹小青; 何旭斌; 赵志成; 严心亮
Original assignee: Dongguan Advanced Surgetech Material Co ltd
Current assignee: Dongguan Advanced Surgetech Material Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-07-20
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses a fuse for car, including last casing, lower casing, hole stopper, fuse-element and touch the sword end, go up the casing and be ceramic material with lower casing, go up casing and lower casing and form and hold the chamber, go up casing and/or casing down and seted up the filler hole, the hole stopper blocks up the filler hole and seals in order to realize, and the fuse-element is located and holds the intracavity, holds that the intracavity still packs the filler that is used for the arc extinguishing, and the both ends of fuse-element are all connected and are touched the sword end. This fuse for car's last casing and lower casing are ceramic material to make can improve the stability of breaking capacity and reinforcing fuse-element holding intracavity packing, the instantaneous strong electric arc that produces when preventing the fuse-element fusing causes serious damage to last casing and lower casing. Especially, the filling material can be added through the filling hole, and then the hole plug is plugged into the filling hole to seal the containing cavity, so that the convenience and the rapidness are realized. In addition, a plurality of melts are arranged in the containing cavity, so that the breaking capacity is further improved.

Description

Fuse for automobile

Technical Field

The utility model relates to a fuse technical field, more specifically relate to a fuse for car.

Background

A fuse, also called a fuse, is an electrical component installed in an electrical circuit to ensure the safe operation of the circuit. The fuse is a short-circuit protector, is widely used in a power distribution system and a control system, and mainly performs short-circuit protection or severe overload protection. With the advance of technology, the demand for high-quality fuses has been increasing.

In the field of traditional automobiles, the fuses are protected and controlled by using low voltage, and along with the rise of new energy automobiles, the fuses using the traditional low voltage cannot meet the requirements of large current and large load of the new energy automobiles, namely, the fuses or the fuses meeting high voltage and high current are urgently needed to be used for the new energy automobiles. The fuse of the mainstream product in the existing market adopts a plastic shell and a single fuse wire, and the plastic shell cannot use filler due to low temperature resistance and structural limitation, so that the breaking capacity is low due to the single fuse wire and a filler-free structure.

Therefore, it is necessary to provide a fuse for an automobile with high breaking capacity to solve the above-mentioned disadvantages of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high breaking capacity's fuse for car.

In order to achieve the purpose, the utility model discloses a fuse for car, include last casing, lower casing, hole stopper, fuse-element and touch the sword end, go up the casing with the casing is ceramic material down, go up the casing with lower casing bodily form becomes and holds the chamber, go up the casing and/or the filler opening has been seted up to the casing down, the hole stopper blocks up the filler opening is in order to realize sealing, the fuse-element is located hold the intracavity, it still packs to have the filler that is used for the arc extinguishing to hold the intracavity, the both ends of fuse-element are all connected touch the sword end.

Compared with the prior art, the fuse for the automobile of this application, its upper housing and lower casing are ceramic material to make can fill the filler in holding the intracavity, improve the stability of disjunction ability and reinforcing fuse-element, the instantaneous strong arc that produces when preventing the fuse-element fusing causes serious damage to upper housing and lower casing. Especially, the filling material can be added through the filling hole, and then the hole plug is plugged into the filling hole to seal the containing cavity, so that the convenience and the rapidness are realized. In addition, a plurality of melts are arranged in the containing cavity, so that the breaking capacity is further improved.

Preferably, the fuse for an automobile further includes a fixing member, by which the upper case and the lower case are fixed.

Preferably, the upper shell is provided with an upper mounting hole, the end of the contact knife is correspondingly provided with a contact knife mounting hole, the lower shell is correspondingly provided with a lower mounting hole, and the fixing piece penetrates through the upper mounting hole, the contact knife mounting hole and the lower mounting hole to be fixed.

Preferably, the melt comprises a plurality of fusing parts arranged at intervals.

Preferably, the number of the melts is two, namely a first melt and a second melt, two ends of the first melt are connected with the first contact cutter end, two ends of the second melt are connected with the second contact cutter end, the first melt is convex towards the upper shell, and the second melt is convex towards the lower shell.

Preferably, the first contact blade tip is provided with a first lug protruding towards the upper shell, two ends of the first melt are connected with the two first lugs, the second contact blade tip is provided with a second lug protruding towards the lower shell, and two ends of the second melt are connected with the two second lugs.

Drawings

Fig. 1 is a schematic perspective view of the fuse for automobile of the present invention.

Fig. 2 is an exploded view of the fuse for an automobile shown in fig. 1.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic structural view of another embodiment of the fuse for an automobile shown in fig. 2.

Description of the symbols:

the fuse block comprises an automobile fuse 100, an upper shell 10, an upper mounting hole 11, a lower shell 20, a lower mounting hole 21, a hole plug 30, a fused body 40, a first fused body 41, a fusing part 42, a second fused body 43, a contact blade tip 50, a first contact blade tip 51, a first lug 511, a contact blade mounting hole 52, a second contact blade tip 53, a second lug 531, a fixing part 60, a containing cavity 71 and a filling hole 73.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

Referring to fig. 1 to 3, the present application discloses an automotive fuse 100, which includes an upper housing 10, a lower housing 20, a hole plug 30, a melt 40, and a contact tip 50, where the upper housing 10 and the lower housing 20 are made of ceramic, the upper housing 10 and the lower housing 20 form a containing cavity 71, the upper housing 10 and/or the lower housing 20 are provided with a filler hole 73, the hole plug 30 blocks the filler hole 73 to achieve sealing, the melt 40 is located in the containing cavity 71, the containing cavity 71 is further filled with a filler for arc extinguishing, and both ends of the melt 40 are connected to the contact tip 50. The upper shell 10 and the lower shell 20 can be matched to form a containing cavity 71, the upper shell 10 and the lower shell 20 are made of ceramic materials, so that filling materials can be filled in the containing cavity 71, the breaking capacity is improved, the stability of the melt 40 is enhanced, and the upper shell 10 and the lower shell 20 are prevented from being seriously damaged by instantaneous strong arcs generated when the melt 40 is fused. Preferably, the filler may be, but is not limited to, quartz sand. The hole plug 30 and the filling hole 73 are detachably mounted, when the accommodating cavity 71 is filled with filling materials, the hole plug 30 is taken out of the filling hole 73, the filling materials are filled into the accommodating cavity 71 through the filling hole 73, and then the filling hole 73 is plugged in the hole plug 30, so that the process is convenient and fast. With regard to the arrangement of the packing hole 73, in one embodiment, the packing hole 73 is provided in the upper casing 10, and in another embodiment, the packing hole 73 is provided in the lower casing 20, but it is also possible to provide the packing hole 73 in both the upper casing 10 and the lower casing 20, and correspondingly provide the hole plug 30 matching therewith.

Referring to fig. 2 to 3, the fuse 100 for an automobile further includes a fixing member 60, and the upper case 10 and the lower case 20 are fixed by the fixing member 60. Specifically, the upper housing 10 is provided with an upper mounting hole 11, the contact blade tip 50 is correspondingly provided with a contact blade mounting hole 52, the lower housing 20 is correspondingly provided with a lower mounting hole 21, and the fixing member 60 penetrates through the upper mounting hole 11, the contact blade mounting hole 52 and the lower mounting hole 21 for fixing. The end of the feeler tip 50 remote from the melt 40 is connected to the outside, for example, but not limited to, a through hole.

Referring to fig. 3, the melt 40 includes a plurality of fuse portions 42 arranged at intervals. In this example, 3 fusing parts 42 are provided, and the fusing parts 42 are arranged at equal intervals. Thereby not only saving materials, but also realizing high breaking capacity.

Referring to fig. 4, there are at least two pairs of contact tips 50, the two pairs of contact tips 50 are arranged in parallel in a vertical direction, there is one melt 40, the melt 40 is located between the pair of contact tips 50, and the two pairs of contact tips 50 are suitable for low current application and can enhance the application strength. Further, referring to fig. 2-3, at least two melts 40 are provided, and two melts 40 are juxtaposed in the accommodating cavity 71, and two ends of each melt 40 are connected to a corresponding pair of contact blade tips 50. In a preferred embodiment, there are two melts 40, which are the first melt 41 and the second melt 43, respectively, two pairs of contact blade tips 50, which are the first contact blade tip 51 and the second contact blade tip 53, respectively, two ends of the first melt 41 are connected to the first contact blade tip 51, two ends of the second melt 43 are connected to the second contact blade tip 53, the first melt 41 is disposed to protrude toward the upper shell 10, and the second melt 43 is disposed to protrude toward the lower shell 20. The first melt 41 and the second melt 43 are juxtaposed in the vertical direction, and the distance between the first melt 41 and the second melt 43 is increased to improve safety. In this embodiment, 3 fusing parts 42 are provided on the first melt 41, and the fusing parts 42 are equally spaced. The second melt 43 is provided with 3 fusing parts 42, and the fusing parts 42 are arranged at equal intervals. Specifically, the first blade tip 51 has a first lug 511 protruding toward the upper case 10, both ends of the first melt 41 are connected to the two first lugs 511, the second blade tip 53 has a second lug 531 protruding toward the lower case 20, and both ends of the second melt 43 are connected to the two second lugs 531. It can be understood that a first lug 511 protruding toward the upper shell 10 is arranged on one side of the first contact blade tip 51 close to the first melt 41, and two ends of the first melt 41 are connected with the first lugs 511 on two sides to realize that the first melt 41 is arranged protruding toward the upper shell 10; similarly, a second lug 531 protruding toward the lower case 20 is disposed on one side of the second blade tip 53 close to the second melt 43, and both ends of the second melt 43 are connected to the second lugs 531 on both sides to realize the protruding disposition of the second melt 43 toward the lower case 20.

Compared with the prior art, the fuse 100 for the automobile has the advantages that the upper shell 10 and the lower shell 20 are made of ceramic materials, so that filling materials can be filled in the accommodating cavity 71, the breaking capacity is improved, the stability of the melt 40 is enhanced, and the upper shell 10 and the lower shell 20 are prevented from being seriously damaged by instantaneous strong electric arcs generated when the melt 40 is fused. In particular, the filling material can be added through the filling hole 73, and then the hole plug 30 is plugged into the filling hole 73 to seal the accommodating cavity 71, which is convenient and quick. In addition, a plurality of melts 40 are arranged in the containing cavity, so that the breaking capacity is further improved.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims

1. The utility model provides a fuse for car, its characterized in that includes upper housing, lower casing, hole stopper, fuse-element and touches the sword end, upper housing with lower casing is ceramic material, upper housing with lower casing form and hold the chamber, upper housing and/or the lower casing has seted up the filler hole, the hole stopper blocks up the filler hole is in order to realize sealedly, the fuse-element is located hold the intracavity, it still packs to have the filler that is used for the arc extinguishing to hold the intracavity, the both ends of fuse-element are all connected touch the sword end.

2. The fuse for an automobile as set forth in claim 1, further comprising a fixing member by which said upper case and said lower case are fixed.

3. The fuse for automobile as claimed in claim 2, wherein the upper case is provided with an upper mounting hole, the contact blade tip is correspondingly provided with a contact blade mounting hole, the lower case is correspondingly provided with a lower mounting hole, and the fixing member passes through the upper mounting hole, the contact blade mounting hole and the lower mounting hole to be fixed.

4. The fuse element for an automobile as recited in claim 1, wherein said fuse element includes a plurality of fuse portions arranged at intervals.

5. The automotive fuse of claim 1, wherein the number of the melts is two, and the two melts are a first melt and a second melt, the two ends of the first melt are connected with a first contact blade tip, the two ends of the second melt are connected with a second contact blade tip, the first melt is arranged to protrude towards the upper shell, and the second melt is arranged to protrude towards the lower shell.

6. The automotive fuse of claim 5, wherein the first contact blade tip has a first lug projecting toward the upper case, both ends of the first melt are connected to the first lugs, the second contact blade tip has a second lug projecting toward the lower case, and both ends of the second melt are connected to the second lugs.