CN209544276U - A kind of fuse structure - Google Patents
A kind of fuse structure Download PDFInfo
- Publication number
- CN209544276U CN209544276U CN201920389758.7U CN201920389758U CN209544276U CN 209544276 U CN209544276 U CN 209544276U CN 201920389758 U CN201920389758 U CN 201920389758U CN 209544276 U CN209544276 U CN 209544276U
- Authority
- CN
- China
- Prior art keywords
- end cap
- rear end
- bearing bracket
- wall
- main casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Fuses (AREA)
Abstract
The utility model relates to high and low voltage electric distribution system and control system and electrical equipment technical fields, more particularly to a kind of fuse structure, by increasing pawl structure in the drive end bearing bracket of main casing and rear end cap inner wall respectively, and circular hole is offered on the side wall of end cap, and strip grooves are provided on the side wall of end cap, to guarantee the stability of drive end bearing bracket and rear end cap when being stamped on main casing, it is ensured that it is more firm when assembly uses that drive end bearing bracket rear end cap is debugged in integral installation, more firm.
Description
Technical field
The utility model relates to technical fields in high and low voltage electric distribution system and control system and electrical equipment, and in particular to
A kind of fuse structure.
Background technique
Fuse is a kind of overcurrent protective device.Fuse is mainly by melt and fusion tube and outer filled grade parts group
At.In use, being series at fuse by protection circuit, when being more than specified value by the electric current of protection circuit, and by certain
After time, the heat fusing melt generated by melt itself disconnects circuit, to play the role of protection, electric current is bigger, melts
The disconnected or open circuit time is shorter.The power consumption of fuse to pass through the square directly proportional of the electric current of fuse.When power consumption is excessively high, fusing
Device fusing.This characteristic is equally applicable to the harness protected by fuse.If the heat generated is more than the heat distributed, fusing
The temperature of device just will increase, and when temperature is raised to the fuse fusing point of fuse, fusing just occurs for fuse that is, disconnecting circuit plays
Protective effect.
The structure of general fuse is mainly made of melt, shell and 3 part of support, and wherein melt is control operating chacteristics
Key element.Material, the size and shape of melt determine operating chacteristics.Melt material is divided into low melting point and high-melting-point two
Class.Low melting material such as lead and metal, the low easy fusing of fusing point, since its resistivity is larger, therefore are made the section of melt
Size is larger, and the metal vapors that when fusing generates is more, is only applicable to the fuse of low breaking capacity.Materials with high melting point such as copper,
Silver, fusing point are high, it is not easy to fuse, but since its resistivity is lower, can be made into sectional dimension more lesser than low fusing point melt, melt
The metal vapors generated when disconnected is few, the fuse suitable for high breaking capacity.The shape of melt is divided into filiform and band-like two kinds.Change
The shape for becoming variable cross-section can significantly change the operating chacteristics of fuse.
The most of fuses wherein applied in the market have main casing, drive end bearing bracket, rear end cap, main casing on structure fabrication
The melt of internal portion's setting, drive end bearing bracket and rear end cap are entered with direct punching press in main casing connection procedure, it is ensured that one
Comparatively stable state, but this is wherein by some Overload torques, installation, when debugging, the end cap that punching press is entered is also
It is the state that cannot keep a relative securement with respect to main casing well, is that punching press is entered after all, what is leaned on is exactly closely to match
The relationship of conjunction connects, so many fuses effectively cannot be installed effectively under overload, be debugged or related at present
The work of maintenance.
Utility model content
The purpose of the utility model is to overcome existing fuses under overload when punching press end cap and shell stability difference
Defect.
A kind of in order to achieve the above object, the utility model provides fuse structure, including main casing are arranged in main casing
The connector of drive end bearing bracket end face is arranged in the drive end bearing bracket of one end, and the rear end cap of the main casing other end is arranged in, and is arranged in main casing
The melt of inner wall, the inner wall of the drive end bearing bracket and the rear end cap offer respectively it is multiple fall tooth-shape structures, the drive end bearing bracket with
The inner wall of the rear end cap offers multiple circular holes perpendicular to inner wall respectively, and the inner wall of the drive end bearing bracket and the rear end cap is long
Degree direction offers strip grooves；
It is described fall tooth-shape structure arrange and join end to end one by one along the inner wall, opening towards respectively with the rear end cap
It is opposite with the opening of drive end bearing bracket；
The circular hole is opened in the drive end bearing bracket and front end portion and the rear end part on the tegmental wall of rear end respectively and keeps round
Center between hole is away from the Circularhole diameter is greater than, to ensure the function and effect of circular hole in the case where not influencing rigidity；
The long job-hopping is multiple respectively along the drive end bearing bracket and rear end cap circle distribution；
The pawl shape structural section is triangle or quadrangle；
The circular hole section is round or square or triangle；
The long job-hopping section is rectangle, triangle or arc-shaped；
The utility model has the beneficial effects that by adding meter pawl in the drive end bearing bracket of main casing and rear end cap inner wall increasing respectively
Structure, and circular hole is offered on the side wall of end cap, and be provided with strip grooves on the side wall of end cap, with guarantee drive end bearing bracket with
A stability of the rear end cap when being stamped on main casing, it is ensured that drive end bearing bracket rear end cap is when integral installation is debugged assembly and used
It is more firm, it is more firm.
The utility model is described in further details below with reference to attached drawing.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the utility model front cross-sectional structural schematic diagram.
Fig. 2 is the utility model rear end cap the schematic diagram of the section structure.
Fig. 3 is the utility model rear end cap forward structure view.
In figure: 1, main casing；2, rear end cap；3, drive end bearing bracket；4, connector；5, melt；6, circular hole；7, strip grooves.
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 are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
According to shown in Fig. 1, Fig. 2, Fig. 3: a kind of fuse structure, including main casing 1, before 1 one end of main casing is set
The connector 4 of 3 end face of drive end bearing bracket is arranged in end cap 3, and the rear end cap 2 of 1 other end of main casing is arranged in, and is arranged in main casing 1
The inner wall of the melt 5 of wall, the drive end bearing bracket 3 and the rear end cap 2 offers multiple tooth-shape structures, the drive end bearing bracket 3 respectively
Multiple circular holes 6 perpendicular to inner wall, the drive end bearing bracket 3 and the rear end cap 2 are offered respectively with the inner wall of the rear end cap 2
Inner wall length direction offer strip grooves 7.
Wherein: fall tooth-shape structure arrange and join end to end one by one along the inner wall, opening towards respectively with rear end cap 2 and
The opening of drive end bearing bracket 3 is on the contrary, after drive end bearing bracket 3 and rear end cap 3 are stamped on main casing 1, due to the tooth-shape structure that falls of design,
Main casing 1 and drive end bearing bracket 3 and 2 contact portion of rear end cap just have extra surplus to be extruded in the pawl shape opening of design, from
And it ensures drive end bearing bracket 3 and rear end cap 2 and is not easily disconnected from main casing 1.
The circular hole 6 opened up on drive end bearing bracket 2 and 3 wall of rear end cap, and keep the center between circular hole 6 straight away from the circular hole is greater than
Diameter is extruded after punching press is complete in main casing in this way to ensure the function and effect of circular hole 6 in the case where not influencing rigidity
Surplus will be expressed within circular hole, so main casing 1 and drive end bearing bracket 3 and rear end cap 2 have the prominent cooperation with shrinkage pool, also just be risen
To preventing the purpose and effect to fall off.
Offer strip grooves 7 respectively on the side wall length direction of drive end bearing bracket 3 and rear end cap 2, and along drive end bearing bracket 3 with after
The circle distribution of end cap 2 is multiple, then the surplus that same main casing is extruded can enter in this strip grooves 7, thus may be used
To prevent relative rotation of the main casing 1 respectively with drive end bearing bracket 3 and rear end cap 2, metastable effect is also played.
The melt being wherein arranged inside main casing is generally excessive or moment overload, melt thawing itself form short in electric current
Road, to protect the security and stability of follow-up equipment, some operators in the art are also referred to as fuse, that
The material of melt generally selects pure metal or alloy to be made, and shape has band-like (including tapered shape) and Filamentous (packet
It includes netted).There are also the melts that one kind has the fuse of filler (being filled with quartz sand), generally use dystectic fine copper or fine silver
Manufacture, purity requirement are higher than 99.99%.They the characteristics of are conductivity height, be made after melt with identical size other are low
Fusing point melt material is compared, and rated current is big, and resistance is low and low in energy consumption.Readily satisfy the requirement of high breaking current capacity.Its
The disadvantage is that fusing point is high (copper is 1083 DEG C, and silver is 960 DEG C), the temperature in overcurrent disjunction is very high, may make entire fuse
Reach the degree that cannot be born.After the 1950s, people make the fusing temperature of melt using metallurgical effect (M-effect)
Degree substantially reduces, i.e., portion or notch are nearby burn-on the metal of low melting point in the melt.Start the seventies also to have and selects fine aluminium conduct
Melt.It is melt copper shown in table, the physical characteristic of silver and aluminium.The melt majority of tubular fuse uses zinc metal sheet, also adopts
With copper sheet or latten(-tin).
So by increasing pawl structure in the drive end bearing bracket of main casing and rear end cap inner wall respectively, and on the side wall of end cap
Circular hole 6 is offered, and is provided with strip grooves 7 on the side wall of end cap, to guarantee that drive end bearing bracket and rear end cap are being stamped into main casing
Stability when on body, it is ensured that it is more firm when assembly uses that drive end bearing bracket rear end cap is debugged in integral installation, more firm.
Claims (7)
1. the drive end bearing bracket (3) in main casing (1) one end is arranged in a kind of fuse structure, including main casing (1), it is arranged in front end
The connector (4) of (3) end face is covered, the rear end cap (2) in main casing (1) other end is set, is arranged in the molten of main casing (1) inner wall
Body (5), it is characterised in that: the inner wall of the drive end bearing bracket (3) and the rear end cap (2) offers multiple tooth-shape structures respectively,
The inner wall of the drive end bearing bracket (3) and the rear end cap (2) offers multiple circular holes (6) perpendicular to inner wall, the front end respectively
Lid (3) and the inner wall length direction of the rear end cap (2) offer strip grooves (7).
2. a kind of fuse structure according to claim 1, it is characterised in that: the tooth-shape structure is along the inner wall
It arranges and joins end to end one by one, opening direction is opposite with the opening of the rear end cap (2) and drive end bearing bracket (3) respectively.
3. a kind of fuse structure according to claim 1, it is characterised in that: the circular hole is opened in the front end respectively
Front end portion and rear end part on lid (3) and rear end cap (2) wall simultaneously keep center between circular hole away from straight greater than the circular hole
Diameter.
4. a kind of fuse structure according to claim 1, it is characterised in that: the strip grooves (7) are multiple, and along
The drive end bearing bracket (3) or the distribution of rear end cap (2) circumferencial direction.
5. a kind of fuse structure according to claim 4, it is characterised in that: the pawl shape structural section is triangle
Or quadrangle.
6. a kind of fuse structure according to claim 1, it is characterised in that: the circular hole section is round or four directions
Shape or triangle.
7. a kind of fuse structure according to claim 1, it is characterised in that: the section of the strip grooves (7) be rectangle,
Triangle is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920389758.7U CN209544276U (en) | 2019-03-26 | 2019-03-26 | A kind of fuse structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920389758.7U CN209544276U (en) | 2019-03-26 | 2019-03-26 | A kind of fuse structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209544276U true CN209544276U (en) | 2019-10-25 |
Family
ID=68275576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920389758.7U Expired - Fee Related CN209544276U (en) | 2019-03-26 | 2019-03-26 | A kind of fuse structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209544276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113675054A (en) * | 2020-05-14 | 2021-11-19 | 丰田铁工株式会社 | Fuse wire |
-
2019
- 2019-03-26 CN CN201920389758.7U patent/CN209544276U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113675054A (en) * | 2020-05-14 | 2021-11-19 | 丰田铁工株式会社 | Fuse wire |
| CN113675054B (en) * | 2020-05-14 | 2024-03-08 | 丰田铁工株式会社 | Fuse wire |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204333054U (en) | Electrokinetic cell top cover | |
| CN102290301A (en) | High-current fuse | |
| CN108172482A (en) | A kind of liquid metal resettable fuse and its method of work | |
| CN209544276U (en) | A kind of fuse structure | |
| CN202094065U (en) | Heavy current fuse protector | |
| CN204946948U (en) | A kind of lithium ion battery safe cap with fuse | |
| KR100797009B1 (en) | Fusible Wire Wound Resistor | |
| CN109119308B (en) | Liquid metal structure self-resetting fuse | |
| US4731600A (en) | Fuse | |
| CN208538789U (en) | A kind of DC voltage protects fuse up to 4000V fast semiconductor | |
| CN210722942U (en) | Alloy type temperature fuse of secondary connection is prevented to heavy current | |
| CN207558923U (en) | A kind of overcurrent protective current carrying lug for battery module | |
| CN209374721U (en) | The plug-in anti-short circuit plug in anti-short-circuiting electrode, anti-short circuit plug, both ends | |
| CN206547002U (en) | A kind of PTC overcurrent protectors | |
| CN206460930U (en) | A kind of charging pile DC fast speed fuse | |
| CN205810738U (en) | A kind of circuit fuse | |
| CN214280352U (en) | Copper bar with high-temperature automatic disconnection protection function | |
| CN219371296U (en) | Connection assembly and battery | |
| CN206134632U (en) | Semiconductor protection is with quick current -limiting fuses of low pressure | |
| CN209150036U (en) | A kind of melt structure can achieve high rated current | |
| CN220367876U (en) | Fuse element for fuse and fuse with same | |
| CN220272412U (en) | Fuse element for a fuse and fuse | |
| CN208889399U (en) | A kind of safe thermistor of high sensitivity | |
| CN216116417U (en) | NTC temperature acquisition unit | |
| CN213400734U (en) | Long service life's fuse-type resistor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |