CN205984870U - Fuse resistor - Google Patents
Fuse resistor Download PDFInfo
- Publication number
- CN205984870U CN205984870U CN201621040433.0U CN201621040433U CN205984870U CN 205984870 U CN205984870 U CN 205984870U CN 201621040433 U CN201621040433 U CN 201621040433U CN 205984870 U CN205984870 U CN 205984870U
- Authority
- CN
- China
- Prior art keywords
- fuse
- link
- connection terminal
- fusing
- connecting terminal
- 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.)
- Active
Links
Landscapes
- Fuses (AREA)
Abstract
The utility model discloses a fuse resistor, include: a connecting terminal and the 2nd connecting terminal, the fuse -link is connected with a connecting terminal and the 2nd connecting terminal respectively, wherein, the fuse -link is copper, the ashbury metal body, use the utility model discloses technical scheme's fuse resistor, through setting up a connecting terminal and the 2nd connecting terminal, be provided with respectively the fuse -link of being connected with a connecting terminal and the 2nd connecting terminal between a connecting terminal and the 2nd connecting terminal, the fuse -link is copper, the ashbury metal body, adopt copper, there is not the breakpoint on the fuse -link of the ashbury metal body, resistivity that can the specified fuse -link, thereby confirm its fusing temperature and fusing time, the problem of the heat that produces of fuse among the prior art wayward and then to lead to fusing temperature and fusing time wayward is solved, the security of circuit work has effectively improved, the voltage range of work has been increased substantially simultaneously, fuse resistor's application range has been expanded.
Description
Technical field
This utility model is related to field of electrical equipment, in particular to a kind of fusing resistor.
Background technology
Electric fuse is the safety device that electric power transmission field is commonly used, and the fuse of traditional electric fuse is in glass tubing or pottery
Coordinate end cap and lead inside pipe again, during curent change its resistance produce heat wayward so that fusing time point
Scattered property is too big, and the safety of use substantially reduces.
Utility model content
Main purpose of the present utility model is to provide a kind of fusing resistor, at least to solve electric fuse in prior art
Generation heat wayward and then lead to fusing-off temperature and the uppity problem of fusing time.
To achieve these goals, according to this utility model, there is provided a kind of fusing resistor, including：First connection end
Son and the second connection terminal；Fuse-link, is connected with the first connection terminal and the second connection terminal respectively；Wherein, fuse-link be copper,
Tin alloy body.
Further, the first connection terminal and the second connection terminal are fine copper matrix.
Further, the first connection terminal, the second connection terminal and fuse-link are formed in one, and fuse-link is using oozing stannum work
Skill forms copper, tin alloy body.
Further, fuse-link is straight rod-shaped.
Further, fuse-link is " V " font.
Further, fuse-link is " Z " font.
Further, fuse-link is serpentine.
Further, fuse-link is plates, and fuse-link offers multiple through holes along its thickness direction.
Further, fusing resistor also includes：Insulation crust, is arranged on the first connection terminal and the second connection terminal
At least part of and fuse-link of one end, the first connection terminal and the second connection terminal is located in insulation crust.
Further, insulation crust offers passage.
The fusing resistor of application technical solutions of the utility model, by arranging the first connection terminal and the second connection end
Son, is provided between the first connection terminal and the second connection terminal and is connected with the first connection terminal and the second connection terminal respectively
Fuse-link, fuse-link be copper, tin alloy body, there is no breakpoint using on copper, the fuse-link of tin alloy body, can accurately determine molten
The resistivity of disconnected body, so that it is determined that its fusing-off temperature and fusing time, solves the heat that electric fuse of the prior art produces
Wayward and then lead to fusing-off temperature and the uppity problem of fusing time, effectively increase the safety of circuit work,
The voltage range of work is greatly improved simultaneously, extends the range of fusing resistor.
Brief description
Accompanying drawing described herein is used for providing further understanding to of the present utility model, constitutes the part of the application,
Schematic description and description of the present utility model is used for explaining this utility model, does not constitute to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is according to optionally a kind of structural representation of fusing resistor of this utility model embodiment；
Fig. 2 is the structural representation according to this utility model embodiment optional second fusing resistor；
Fig. 3 is the structural representation according to this utility model embodiment the third fusing resistor optional；
Fig. 4 is the structural representation according to the optional 4th kind of fusing resistor of this utility model embodiment；
Fig. 5 is the structural representation according to the optional 5th kind of fusing resistor of this utility model embodiment；
Fig. 6 is to ooze stannum procedure structure change schematic diagram according to the optional fuse-link of this utility model embodiment；
When Fig. 7 is resistance value distribution and the fusing of the fuse-link according to the optional fusing resistor of this utility model embodiment
Between corresponding relation figure；
Fig. 8 is fuse-link according to the optional fusing resistor of this utility model embodiment in normal work and non-disjunction feelings
Current vs' schematic diagram under condition；
Fig. 9 is fuse-link according to the optional fusing resistor of this utility model embodiment structure change in fusing process
Schematic diagram；
Figure 10 is fuse-link according to the optional fusing resistor of this utility model embodiment electric current in fusing process
Change schematic diagram；And
Figure 11 is fuse-link according to the optional fusing resistor of this utility model embodiment temperature in fusing process
Change schematic diagram.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling：
10th, the first connection terminal；20th, the second connection terminal；30th, fuse-link；40th, insulation crust；41st, passage.
Specific embodiment
In order that those skilled in the art more fully understand this utility model scheme, real below in conjunction with this utility model
Apply the accompanying drawing in example, the technical scheme in this utility model embodiment is clearly and completely described it is clear that described
Embodiment is only the embodiment of this utility model part, rather than whole embodiments.Based on the reality in this utility model
Apply example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, all answer
When the scope belonging to this utility model protection.
According to the fusing resistor of this utility model embodiment, as shown in Figures 1 to 5, including：First connection terminal 10,
Second connection terminal 20 and fuse-link 30；Fuse-link 30 is connected with the first connection terminal 10 and the second connection terminal 20 respectively；Its
In, fuse-link 30 is copper, tin alloy body.
The fusing resistor of application technical solutions of the utility model, by arranging the first connection terminal 10 and the second connection end
Son 20, is provided between the first connection terminal 10 and the second connection terminal 20 and is connected with the first connection terminal 10 and second respectively
The fuse-link 30 that terminal 20 connects, fuse-link 30 is copper, tin alloy body, using not disconnected on copper, the fuse-link 30 of tin alloy body
Point, can accurately determine the resistivity of fuse-link 30, so that it is determined that its fusing-off temperature and fusing time, solve in prior art
The heat that produces of electric fuse wayward and then lead to fusing-off temperature and the uppity problem of fusing time, effectively increase
The safety of circuit work, is greatly improved the scope of running voltage simultaneously, extends the range of fusing resistor.
In order to ensure the electric conductivity of the first connection terminal 10 and the second connection terminal 20, alternatively, the first connection terminal 10
It is fine copper matrix with the second connection terminal 20, fine copper matrix has good electric conductivity, and resistance value is stable, loss is low.First
Connection terminal 10, the second connection terminal 20 and fuse-link 30 are integrally formed using fine copper, and fuse-link 30 is penetrated into using oozing process of tin
A small amount of stannum forms copper, tin alloy body, and fuse-link 30 part does not have any breakpoint, and its consistency is dependent only on fuse-link 30 material
The resistivity of material and shape, design is simple, and reliability is high.
According to penetrate into stannum amount number fusing-off temperature can be may thereby determine that with the resistance value of precise control fuse-link 30
With fusing time it is ensured that can also normally fuse at low temperature.When different electric currents flows through fuse-link 30, its resistance can occur
Change, produces heat simultaneously, fuses when temperature reaches predetermined temperature, and protection late-class circuit is it is ensured that safety.
Usually the fusing point of metallic copper is very high, typically can reach 1083.4 degrees Celsius, by fuse-link 30
Part infiltration stannum can control the reaction temperature melted and start to melt at 150-170 degree Celsius.Ooze fuse-link 30 during stannum
Structure change is as shown in fig. 6, when just starting, Copper substrate and stannum ball are all solid, shaped；With the rising of temperature, enter second-order
Section, Copper substrate is still solid, and it is liquid that stannum ball starts to melt, and starts to be diffused to Copper substrate；When entering the phase III,
It is liquid that part Copper substrate also begins to melt, and stannum ball is lasting bulk diffusion to cuprio, and both mixing unit are solid and liquid；?
Latter stage, Copper substrate and stannum ball form liquid alloy completely, wait and can form copper, the fuse-link 30 of stannum conjunction after cooling.
In addition to crossing the material of fuse-link 30, can also precise control fusing by fuse-link 30 is designed as different shapes
The resistance value of body 30.Required according to different fusing-off temperatures and fusing time, alternatively, as shown in Figures 1 to 5, fuse-link 30
Can be straight rod-shaped, " V " font, " Z " font, serpentine.In addition, fuse-link 30 can also be plates, the fuse-link 30 of lamellar
Offer multiple through holes along its thickness direction.The shape of different fuse-links 30 has difference under quiescent current and dynamic current
Resistance value, can select as needed.
As shown in fig. 7, by substantial amounts of mathematical statisticss and design of Simulation can obtain the resistance value distribution of fuse-link 30 with
The corresponding relation of fusing time, such that it is able to judge the fusing time of fusing resistor according to the difference of fuse-link 30 resistance value.
By the corresponding relation of fusing time and fuse-link 30 resistance value, can be designed that the fusing resistor of different fusing times,
Reach the effect being accurately controlled product parameters.
The operation principle of fuse-link 30 is：Component damage when generally circuit breaks down, causes short circuit, at this moment electricity
Source will be shorted causes immediate current to be increased dramatically, and device element is burnt further, can send out with the phenomenon caught fire of smoldering
Raw.The breaking current avoiding the generation of these risk factors to seek to limit electric current and will be safe.As shown in figure 8, solid line
Part is electric current during normal work, and dotted portion is not use fusing resistor or fusing resistor not to have during normal work
Electric current.
If fuse-link 30 does not fuse, electric current can be very big in moment impact, and generally more than ten times of rated current holds very much
Easily catch fire.But if fuse-link 30 works, resistance become big moment fusing will fault current limitation safety model
Within enclosing, the fuse-link 30 of the present embodiment can disconnect, generally for 50Hz in the half period less than running current
Its break of power supply be 10ms, for 60Hz its break of power supply be 8.3ms, quickly can play disconnecting circuit,
The effect of protection late-class circuit.
Fuse-link 30 is divided into two stages in specific works, as shown in Figure 9 and Figure 10, in first stage, that is, in t1
To the t2 time period, the resistance of fuse-link 30 starts to change, and the heat energy of generation is I2Produce in RT, t1 to the t2 time period
Heat energy can be calculated in the way of using integration.The resistance of fuse-link 30 can be gradually increased with the rising of temperature, and resistance increases
The heat producing is led to greatly to increase further, this is the process of a positive feedback, and fuse-link 30 is changed from solid-state to liquid, finally
Deliquescing can become liquid state；In second stage, that is, within t2 to the t3 time period, the alloy body of liquid state is due to the effect of gravity
The body of fuse-link 30 can be departed from, at this moment will form the sparking time by ionized air, between two sections of fuse-links 30, start arcing simultaneously
Continue calcination fuse-link 30 below, can completely disconnect afterwards with crack sound and flash of light, form the protection of safety
Gap, the voltage of power supply is all added on the first connection terminal 10 and the second connection terminal 20.
As shown in figure 11, it is temperature change in fusing process for the fuse-link 30.
As shown in the table, it is the different operating chacteristics that fuse-link 30 shows under different electric currents.
In order to effectively be insulated, thus convenient use, as shown in Figures 1 to 5, connect in the first connection terminal 10 and second
One end of connecting terminal 20 is provided with insulation crust 40, the first connection terminal 10 and the second connection terminal 20 at least part of and molten
Disconnected body 30 is located in insulation crust 40, forms cavity body structure in insulation crust 40, and fuse-link 30 is located in cavity body structure, and insulation is outer
The passage 41 being connected with internal cavity body structure is offered on the shell wall of shell 40, so that fuse-link 30 exposes in atmosphere,
The heat producing during fuse-link 30 fusing can be distributed to outside by passage 41 it is ensured that the heat producing when fusing can be pacified
Entirely release it is ensured that whole circuit will not produce bright cigarette naked light it is ensured that the safe under high voltages disjunction of fuse-link 30, one after protection
The safety of level circuit.
By to the selection of fuse-link 30 material, structure design and the structure design to insulation crust 40, making to melt
The design voltage of fuse resistor reaches 250VDC/AC it might even be possible to reach 350V, fully meets protection under power-frequency voltage and uses.
Meanwhile, different structures adds up to and material selects to meet different current requirements, and design current can be from 40mA to up to a hundred
Ampere.
The above is only preferred implementation of the present utility model it is noted that ordinary skill people for the art
For member, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improvements and modifications
Also should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of fusing resistor is it is characterised in that include：
First connection terminal (10) and the second connection terminal (20)；
Fuse-link (30), is connected with described first connection terminal (10) and described second connection terminal (20) respectively；
Wherein, described fuse-link (30) is copper, tin alloy body.
2. fusing resistor according to claim 1 is it is characterised in that described first connection terminal (10) and described second
Connection terminal (20) is fine copper matrix.
3. fusing resistor according to claim 2 it is characterised in that described first connection terminal (10), described second
Connection terminal (20) and described fuse-link (30) are formed in one.
4. fusing resistor according to claim 1 is it is characterised in that described fuse-link (30) is straight rod-shaped.
5. fusing resistor according to claim 1 is it is characterised in that described fuse-link (30) is " V " font.
6. fusing resistor according to claim 1 is it is characterised in that described fuse-link (30) is " Z " font.
7. fusing resistor according to claim 1 is it is characterised in that described fuse-link (30) is serpentine.
8. fusing resistor according to claim 1 is it is characterised in that described fuse-link (30) is plates, described molten
Disconnected body (30) offers multiple through holes along its thickness direction.
9. fusing resistor according to claim 1 is it is characterised in that described fusing resistor also includes：
Insulation crust (40), is arranged on one end of described first connection terminal (10) and described second connection terminal (20), described
At least part of and described fuse-link (30) of the first connection terminal (10) and described second connection terminal (20) is located at described exhausted
In edge shell (40).
10. fusing resistor according to claim 9 is it is characterised in that offer ventilation on described insulation crust (40)
Hole (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621040433.0U CN205984870U (en) | 2016-08-29 | 2016-08-29 | Fuse resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621040433.0U CN205984870U (en) | 2016-08-29 | 2016-08-29 | Fuse resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205984870U true CN205984870U (en) | 2017-02-22 |
Family
ID=58039842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621040433.0U Active CN205984870U (en) | 2016-08-29 | 2016-08-29 | Fuse resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205984870U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229241A (en) * | 2016-08-29 | 2016-12-14 | 杜尧生 | Fusing resistor |
-
2016
- 2016-08-29 CN CN201621040433.0U patent/CN205984870U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229241A (en) * | 2016-08-29 | 2016-12-14 | 杜尧生 | Fusing resistor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204155893U (en) | A kind of PWM fuse | |
| CN205984870U (en) | Fuse resistor | |
| CN204088239U (en) | Self-recoverage fuse | |
| CN201829441U (en) | Surface mount fuse | |
| CN106229241A (en) | Fusing resistor | |
| CN204289317U (en) | A kind of novel fuse | |
| CN216980482U (en) | Melt | |
| CN204088252U (en) | Restoration type fuse | |
| CN206516597U (en) | A kind of winding-type temperature and resistance formula fuse | |
| TWI588857B (en) | Composite protective component and protection circuit | |
| CN207676750U (en) | A kind of overcurrent delay fusing insurance resistance | |
| CN106157783B (en) | The experimental model to fall off using electrocaloric effect control simulation ice-coating load | |
| CN208908204U (en) | A kind of overheat overcurrent power-off protection device | |
| CN200972849Y (en) | Anti-electric shock insulation power-off fuse structure | |
| CN205542673U (en) | High density pottery fuse | |
| CN206471528U (en) | A kind of cell parallel composite circuit board | |
| CN204740999U (en) | Sign a guarantee danger and surging bleeder of mechanism of warning | |
| CN207303032U (en) | A kind of outdoor circuit protection fuse | |
| CN206379322U (en) | A kind of anti-lightning strike ground connection fuse cutout of current stabilization | |
| CN100525001C (en) | Closed mode overheat protective technology | |
| CN204375684U (en) | Fast acting fuse melt | |
| CN204537973U (en) | Big current fast acting fuse | |
| CN204332866U (en) | A kind of safety device for high-voltage power equipment being provided with shell fragment | |
| CN204045533U (en) | A kind of built-in type hot melt breaks device | |
| CN209266310U (en) | It is a kind of for three pins of LED light or the alloy-type thermal fuse-link of four pins |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |