CN208208457U - A kind of attachment wire resistor improving welding performance - Google Patents
A kind of attachment wire resistor improving welding performance Download PDFInfo
- Publication number
- CN208208457U CN208208457U CN201820979998.8U CN201820979998U CN208208457U CN 208208457 U CN208208457 U CN 208208457U CN 201820979998 U CN201820979998 U CN 201820979998U CN 208208457 U CN208208457 U CN 208208457U
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- conductive cap
- wire resistor
- attachment wire
- bump
- welding performance
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Abstract
The utility model discloses a kind of attachment wire resistors for improving welding performance, including mounting wire resistor, attachment wire resistor is cylindrical structure, is equipped with conductive cap in the both ends fixing sleeve of attachment wire resistor, conductive cap is cylindrical structure, and the outer circle of conductive cap is equipped with bump.A kind of attachment wire resistor of the raising welding performance of the utility model, the bump for increasing its surface area is provided in the outer circle of the conductive cap of attachment wire resistor, the bump is when the pad on conductive cap and circuit board is welded, it is capable of increasing the contact area of solder between pad and conductive cap, solder firmly can be solidificated in conductive cap on pad, reduce its contact resistance, improve its electric conductivity, long-time service is not susceptible to the problem of desoldering, oxidation and fever, reduces the fraction defective of the equipment or product using the attachment wire resistor.
Description
Technical field
The utility model relates to Chip-R technical fields, and in particular to a kind of attachment coiling electricity for improving welding performance
Resistance.
Background technique
The conductive cap of existing cylindrical attachment wire resistor is cylindrical structure, shown referring to figure 3., using this structure
Attachment wire resistor 1 when being mounted on the circuit board 4, since the outer circle of conductive cap 2 is smooth, and conductive cap when mounting
It is outer circle tangential contact between 2 and solder 3, bonding area is small, is not connected firmly, and attachment 1 both ends or one end of wire resistor are led
Electric cap 2 is likely to occur dry joint or rosin joint phenomenon, is being used for a long time or is being easy to produce in being chronically exposed to air fever or oxidation
Lead to solder joint desoldering, eventually leads to equipment or product breaks down.It is therefore desirable to improve its structure, need to design one
Kind improves the attachment wire resistor of welding performance.
Utility model content
Technical problem to be solved in the utility model is the deficiencies in the prior art, and it is an object of the present invention to provide a kind of raising is welded
The attachment wire resistor of performance.
The utility model is achieved through the following technical solutions:
A kind of attachment wire resistor improving welding performance, including wire resistor is mounted, the attachment wire resistor includes
Cylindrical insulator is equipped with conductive cap in the both ends fixing sleeve of cylindrical insulator, winds in the outer circle of cylindrical insulator
There is resistance wire, the resistance wire is electrically connected with the conductive cap at cylindrical insulator both ends, and the conductive cap is circle open at one end
The outer circle of column construction, the conductive cap is equipped with bump.
Preferred embodiment, the bump are sawtooth projection or incised groove.
Preferred embodiment, the bump are spiral shape protrusion or spiral groove.
Preferred embodiment, the bump are latticed protrusion or latticed groove.
Preferred embodiment, the bump are annular protrusion or annular groove.
Preferred embodiment, the bump are strip protrusion or strip-shaped groove.
Preferred embodiment, the conductive cap are red copper material, are coated with tin layers in the outer layer of conductive cap.
The utility model compared with prior art, has the following advantages and benefits: one kind of the utility model mentions
The attachment wire resistor of high welding performance is provided in the outer circle of the conductive cap of attachment wire resistor and increases the recessed of its surface area
Protrusion, the bump are capable of increasing solder between pad and conductive cap when the pad on conductive cap and circuit board is welded
Contact area, solder firmly can be solidificated in conductive cap on pad, reduce its contact resistance, greatly improve its electric conductivity
With the reliability of welding, the problem of being not susceptible to desoldering is used for a long time, reduces the equipment or product for using the attachment wire resistor
Fraction defective.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the main view of the utility model；
Fig. 2 is the perspective view of the utility model；
Fig. 3 is that the conductive cap of the attachment wire resistor of the prior art mounts schematic diagram；
Fig. 4 is that the conductive cap of the attachment wire resistor of the utility model mounts schematic diagram.
Label and corresponding parts title in attached drawing:
1- mounts wire resistor, 2- conductive cap, 3- solder, 4- circuit board, 21- sawtooth projection.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment
As shown in Figure 1, Figure 2 and Figure 4, a kind of attachment wire resistor for improving welding performance of the utility model, including attachment
Wire resistor 1, attachment wire resistor 1 include cylindrical insulator, are equipped with conductive cap in the both ends fixing sleeve of cylindrical insulator
2, conductive cap 2 is preferably copper material, is coated with tin layers in the outer layer of conductive cap 2, is wound with electricity in the outer circle of cylindrical insulator
Silk is hindered, resistance wire is electrically connected with the conductive cap 2 at cylindrical insulator both ends, and conductive cap 2 is cylindrical structure open at one end, is led
The outer circle of electric cap 2 is equipped with bump, which is preferably the sawtooth projection 21 arranged along 2 outer circle circumference uniform distribution of conductive cap.
The attachment wire resistor of this structure is provided in the outer circle of the conductive cap 2 of attachment wire resistor 1 increases its surface
Long-pending bump, the bump are capable of increasing pad and conductive cap 2 when the pad on conductive cap 2 and circuit board 4 is welded
Between solder 3 contact area, solder 3 firmly can be solidificated in conductive cap 2 on pad, reduce its contact resistance, improve
The problem of reliability of its electric conductivity and welding increases its mechanical strength, and long-time service is not susceptible to desoldering, reduces and uses the patch
Fill the equipment of wire resistor or the fraction defective of product.
Preferred embodiment scheme, the bump are the incised groove arranged along 2 outer circle circumference uniform distribution of conductive cap.
Preferred embodiment scheme, the bump are the spiral shape protrusion opened up along 2 outer circle of conductive cap or spiral groove.
Preferred embodiment scheme, the bump are the latticed protrusion opened up along 2 outer circle of conductive cap or latticed groove.
Preferred embodiment scheme, the bump are the annular protrusion or annular groove opened up along 2 outer circle of conductive cap, the annular
Protrusion or annular groove are opened up along the axis direction of conductive cap 2.
Preferred embodiment scheme, the bump are the strip protrusion or strip opened up along 2 outer circle circumference uniform distribution of conductive cap
Connected in star, strip protrusion or strip-shaped groove are parallel with the axis direction of conductive cap 2.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of attachment wire resistor for improving welding performance, including attachment wire resistor, the attachment wire resistor include circle
Cylindrical insulator is equipped with conductive cap in the both ends fixing sleeve of cylindrical insulator, is wound in the outer circle of cylindrical insulator
Resistance wire, the resistance wire are electrically connected with the conductive cap at cylindrical insulator both ends, and the conductive cap is cylinder open at one end
Shape structure, which is characterized in that the outer circle of the conductive cap is equipped with bump.
2. a kind of attachment wire resistor for improving welding performance according to claim 1, which is characterized in that the bump
For sawtooth projection or incised groove.
3. a kind of attachment wire resistor for improving welding performance according to claim 1, which is characterized in that the bump
For spiral shape protrusion or spiral groove.
4. a kind of attachment wire resistor for improving welding performance according to claim 1, which is characterized in that the bump
For latticed protrusion or latticed groove.
5. a kind of attachment wire resistor for improving welding performance according to claim 1, which is characterized in that the bump
For annular protrusion or annular groove.
6. a kind of attachment wire resistor for improving welding performance according to claim 1, which is characterized in that the bump
For strip protrusion or strip-shaped groove.
7. a kind of attachment wire resistor for improving welding performance according to claim 1, which is characterized in that the conductive cap
For iron, copper, stainless steel material, tin layers or nickel layer are coated in the outer layer of conductive cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820979998.8U CN208208457U (en) | 2018-06-25 | 2018-06-25 | A kind of attachment wire resistor improving welding performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820979998.8U CN208208457U (en) | 2018-06-25 | 2018-06-25 | A kind of attachment wire resistor improving welding performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208208457U true CN208208457U (en) | 2018-12-07 |
Family
ID=64497128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820979998.8U Active CN208208457U (en) | 2018-06-25 | 2018-06-25 | A kind of attachment wire resistor improving welding performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208208457U (en) |
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2018
- 2018-06-25 CN CN201820979998.8U patent/CN208208457U/en active Active
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| GR01 | Patent grant |