CN206236495U - Porcelain shell mould Temperature protection anti-lightning surge wirewound resistor - Google Patents
Porcelain shell mould Temperature protection anti-lightning surge wirewound resistor Download PDFInfo
- Publication number
- CN206236495U CN206236495U CN201621342219.0U CN201621342219U CN206236495U CN 206236495 U CN206236495 U CN 206236495U CN 201621342219 U CN201621342219 U CN 201621342219U CN 206236495 U CN206236495 U CN 206236495U
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- China
- Prior art keywords
- wire
- metal
- lead wire
- porcelain shell
- porcelain
- 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.)
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- 229910052573 porcelain Inorganic materials 0.000 title claims abstract description 53
- 230000004224 protection Effects 0.000 title claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 66
- 239000002184 metal Substances 0.000 claims abstract description 66
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910000521 B alloy Inorganic materials 0.000 claims description 9
- 230000004907 flux Effects 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000000338 in vitro Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Details Of Resistors (AREA)
Abstract
Porcelain shell mould Temperature protection anti-lightning surge wirewound resistor, including wire-wound resistor body and fusible metal body, wire-wound resistor body two ends respectively with the first metal lead wire and the second metal lead wire butt-joint, welded with the first metal lead wire fusible metal body one end, the other end is welded with the 3rd metal lead wire, described wire-wound resistor body and fusible metal body is encapsulated in same porcelain shell, and the second metal lead wire and the 3rd metal lead wire are drawn as pin from the wire lead slot of porcelain shell.During energization work; electric current passes through wire-wound resistor body; and when there is abnormal current; electric current exceedes the rated current of wire-wound resistor body, but not up to makes the size of current of wire-wound resistor body fusing, and at this moment wire-wound resistor body then constantly generates heat; when temperature reaches the fusing-off temperature of fusible metal body; fusible metal body fuses, and this porcelain shell resistor is opened a way, and plays a part of protection circuit.
Description
Technical field
The utility model is related to a kind of resistor, specifically a kind of porcelain shell mould Temperature protection anti-lightning surge wire-wound resistor
Device.
Background technology
Wirewound resistor currently used for electricity-saving lamp or charger for mobile phone is required to meet anti-lightning surge impact, while
Under current state（Mainly the commutation diode of power unit and filter capacitor are short-circuit, by the electric current of wirewound resistor
It is more than 50 times of its rated value）, wirewound resistor should disconnect at the appointed time.But when occurring too small abnormal current in circuit
When or electricity-saving lamp is misapplied when in light adjusting circuit, the electric current for flowing through wire wound resistor can increase（Even up to wirewound resistor
1.5~2 times of rated current）, on the premise of enough lightning surges are ensured, the resistance of in the market（Including fast thawing type）All cannot
So as to reach thermal balance, resistance can be generated heat generation high temperature, and plastic will be burnt when resistive surface temperature is more than 600 DEG C for fusing in time
（Charger case）, bring potential safety hazard.
Current power supply class and electricity-saving lamp electronic product, wherein in half short circuit of component, its element itself is likely to hair
Heat, causes heat to assemble, and its board design once cannot press close to heating unit without Thermal Cutoffs, or Thermal Cutoffs
During part, then component persistent fever will burn region plastic, bring great potential safety hazard.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of porcelain shell mould Temperature protection anti-lightning surging line around electricity
Resistance device, on the premise of the impact characteristics of resistance to lightning surge are ensured, when having abnormal low current by causing wire-wound resistor body adstante febre,
Fused immediately when set point of temperature is reached, it is to avoid produce potential safety hazard.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：Porcelain shell mould Temperature protection anti-lightning wave
Wirewound resistor, including wire-wound resistor body and fusible metal body are gushed, described wire-wound resistor body includes porcelain rod, the press-fitting of porcelain rod two ends
There is metal cap, B alloy wire is wound with porcelain rod, B alloy wire two ends are welded with two metal caps respectively, two metal caps point
Not with the first metal lead wire and the second metal lead wire butt-joint；Described fusible metal body one end is welded with the first metal lead wire, separately
One end is welded with the 3rd metal lead wire, and described wire-wound resistor body and fusible metal body is encapsulated in same porcelain shell, the second gold medal
Category lead and the 3rd metal lead wire are drawn respectively as two pins from the wire lead slot of porcelain shell, are also filled with described porcelain shell
Insulator seal material.
The aluminum content of described porcelain rod is 75%.
Described fusible metal is also enclosed with flux in vitro.
For the sake of for simple declaration problem, below to porcelain shell mould Temperature protection anti-lightning surging line described in the utility model around
Resistor is referred to as this porcelain shell resistor.
During the shell resistor energization work of this porcelain, electric current by B alloy wire, and when there is abnormal current, electric current exceed line around
The rated current of resistive element, but not up to make the size of current of wire-wound resistor body fusing, at this moment wire-wound resistor body is then constantly sent out
Heat, when temperature reaches the fusing-off temperature of fusible metal body, the fusing of fusible metal body makes this porcelain shell resistor open a way, and plays guarantor
The effect of protection circuit.
This porcelain shell resistor solves resistance on the premise of the impact characteristics of resistance to lightning surge are ensured, when the exception for passing through is small
Electric current causes wire-wound resistor body adstante febre, and the electric current is unable to reach the size of current for making wire-wound resistor body fuse, and line is around electricity
The problem of resistance body persistent fever, makes wire-wound resistor body be fused immediately when set point of temperature is reached, it is to avoid produce potential safety hazard.
By changing resistor structure, on the premise of not extra drain space, increase volume is ensured, wire-wound resistor is realized
Carry and fusible metal body（Thermal Cutoffs）Merging, realize appearance and size minimize.
By changing wire-wound resistor body and fusible metal body（Thermal Cutoffs）Contact type, fusible metal body is placed in
Inside porcelain shell, and the radiating of wire-wound resistor body is carried out by the heating of porcelain shell, and such fusible metal body is then realized being heated in real time, fusing temperature
Deviation is almost negligible disregards for degree.
This porcelain shell resistor possesses anti-lightning surge characteristic, while once there is abnormal ultra-small current in circuit, online around
Resistance temperature reaches the ability for allowing this porcelain shell resistor to be opened a way when will endanger product safety.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model porcelain shell mould Temperature protection anti-lightning surge wirewound resistor.
Specific embodiment
Embodiment of the present utility model is described specifically below in conjunction with the accompanying drawings：
Below by taking RXF21-2W-10R-JGT type porcelain shell mould Temperature protection anti-lightning surge wirewound resistors as an example, to this reality
Explanation is further explained with new porcelain shell mould Temperature protection anti-lightning surge wirewound resistor, it is necessary to what is illustrated is：This reality
It is only specific embodiment of the present utility model to apply example, is not limitation of the utility model, and those skilled in the art is not
In the case of departing from the utility model Technology design principle, the change or modification made using above-mentioned technology contents are regarded as
Belong to protection domain of the present utility model.
RXF21-2W-10R-JGT type porcelain shell mould Temperature protection anti-lightning surge wirewound resistors, as shown in figure 1, including line
Around resistive element 10 and fusible metal body 6, described wire-wound resistor body 10 includes porcelain rod 1, and the specification of porcelain rod 1 is 1.7 × 5.2 mm, is contained
Aluminum amount is 75%, and the press-fitting of the two ends of porcelain rod 1 has irony cap 3, and the internal diameter of cap 3 is 1.66 mm, is highly 1.2 mm, and thickness is 0.2
Mm, is wound with B alloy wire 2 on porcelain rod 1, the two ends of B alloy wire 2 are welded with two metal caps 3 respectively, and two metal caps 3 are distinguished
With the first metal lead wire 51 and the butt-joint of the second metal lead wire 52；Welded with the first metal lead wire 51 described one end of fusible metal body 6
Connect, the other end is welded with the 3rd metal lead wire 53, fusible metal body 6 is outer to be also enclosed with flux 7, described wire-wound resistor body 10
It is encapsulated in same porcelain shell 4 with fusible metal body 6, the second metal lead wire 52 and the 3rd metal lead wire 53 draw respectively as two
Pin is drawn from two wire lead slots 41 of porcelain shell, is also filled up with insulator seal material in described porcelain shell 4.
The production of the RXF21-2W-10R-JGT type porcelain shell mould Temperature protection anti-lightning surge wirewound resistors of the present embodiment
Flow is：Cap is coordinated at porcelain rod two ends by pressure cap equipment first, forms pressure cap resistive element；It is logical at pressure cap resistive element two ends
Butt-joint equipment is crossed to exist plus the first metal lead wire and the second metal lead wire, the first metal lead wire and the control of the second metal lead wire length
25 mm or so；B alloy wire one end is welded on one of cap again, then carries out coiling using automatic winding equipment,
The other end is welded on another cap when B alloy wire resistance reaches 10R, forms wire-wound resistor body；It is right in voltage ageing equipment
The wire-wound resistor body applies 10 times of voltages of rated power, to reject defective products；Qualified line is around electricity after voltage ageing is tested
First metal lead wire of resistance body is prescinded to 10 mm, fusible metal body one end is welded on the first metal lead wire, then use the second gold medal
Category lead welding is drawn；Flux is dropped on fusible metal body, is defined by wrapping fusible metal body；By wire-wound resistor body and
The connector bending that fusible metal is carried is fitted into porcelain shell, and the second metal lead wire and the 3rd metal lead wire are used as pin from porcelain shell lead
Drawn in groove；Porcelain shell is filled up using insulator seal material；Resistor after the encapsulation that 12 hours will be stood is placed in 80 DEG C of baking ovens at heat
Reason 1 hour；The japanning resistor is tested according to 10R ± 5% precision, defective products is rejected；Two pins are switched to 5 mm,
And ensure that pin is upright, you can obtain RXF21-2W-10R-JGT type porcelain shell mould Temperature protections anti-lightning surge wirewound resistor product
Product；Finally product is packed, packaged form quantity is according to customer requirement, then by the product inflow warehouse for finished product after packaging
Can.
After tested, the RXF21-2W-10R-JGT type porcelain shell mould Temperature protection anti-lightning surge wirewound resistors of the present embodiment
The fusing time when it is 550 mA that electric current is constant be only 19 S；And existing traditional fusing type RXF21-2W-10R-J resistance
The fusing time ＞ 10 minutes under the conditions of electric current same test of device.
Claims (3)
1. porcelain shell mould Temperature protection anti-lightning surge wirewound resistor, including wire-wound resistor body, described wire-wound resistor body includes
Porcelain rod, porcelain rod two ends press-fitting has metal cap, and B alloy wire is wound with porcelain rod, and B alloy wire two ends are welded with two metal caps respectively
Connect, two metal caps respectively with the first metal lead wire and the second metal lead wire butt-joint, it is characterised in that：Also include fusible metal
Body, described fusible metal body one end is welded with the first metal lead wire, and the other end is welded with the 3rd metal lead wire, described line around
Resistive element and fusible metal body are encapsulated in same porcelain shell, and the second metal lead wire and the 3rd metal lead wire draw respectively as two
Pin is drawn from the wire lead slot of porcelain shell, and insulator seal material is also filled with described porcelain shell.
2. porcelain shell mould Temperature protection anti-lightning surge wirewound resistor according to claim 1, it is characterised in that：Described
The aluminum content of porcelain rod is 75%.
3. porcelain shell mould Temperature protection anti-lightning surge wirewound resistor according to claim 1 and 2, it is characterised in that：Institute
The fusible metal stated also is enclosed with flux in vitro.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342219.0U CN206236495U (en) | 2016-12-08 | 2016-12-08 | Porcelain shell mould Temperature protection anti-lightning surge wirewound resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342219.0U CN206236495U (en) | 2016-12-08 | 2016-12-08 | Porcelain shell mould Temperature protection anti-lightning surge wirewound resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206236495U true CN206236495U (en) | 2017-06-09 |
Family
ID=58979440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621342219.0U Expired - Fee Related CN206236495U (en) | 2016-12-08 | 2016-12-08 | Porcelain shell mould Temperature protection anti-lightning surge wirewound resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206236495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010648A (en) * | 2017-12-28 | 2018-05-08 | 安徽省昌盛电子有限公司 | Half short circuit fixed point fusing anti-lightning surge wirewound resistor |
-
2016
- 2016-12-08 CN CN201621342219.0U patent/CN206236495U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108010648A (en) * | 2017-12-28 | 2018-05-08 | 安徽省昌盛电子有限公司 | Half short circuit fixed point fusing anti-lightning surge wirewound resistor |
| CN108010648B (en) * | 2017-12-28 | 2023-12-22 | 安徽省昌盛电子有限公司 | Semi-short circuit fixed point fusing lightning surge resistant wire-wound resistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170609 |