CN208298644U - Power resistor in a kind of solder type - Google Patents
Power resistor in a kind of solder type Download PDFInfo
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- CN208298644U CN208298644U CN201820817205.2U CN201820817205U CN208298644U CN 208298644 U CN208298644 U CN 208298644U CN 201820817205 U CN201820817205 U CN 201820817205U CN 208298644 U CN208298644 U CN 208298644U
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- resistor
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- solder type
- resistor disc
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Abstract
The utility model discloses power resistors in a kind of solder type, it include resistor disc, and the package casing on resistor disc is set, the top printing sintering of the resistor disc has resistance, the two sides of the resistance are connected separately with pin, each pin is the tinned wird that rectangular diameter is 1mm, the top of the package casing is provided with 4 firm bankings, a fairlead is equipped on each firm banking, one end of each pin is stretched out from corresponding fairlead, one end of the resistor disc is equipped with circular fixation hole, the other end of the resistor disc is equipped with the fixing groove of U-shaped.In the utility model, the resistor is using the tinned wird of rectangular diameter 1mm as pin, and different fixation holes is devised at the both ends of resistor disc, to distinguish both forward and reverse directions, also facilitate the resistance distinguished and connected, while by bonding shell encapsulation outside the resistor, inside is solidified with silica gel, the insulating capacity for substantially increasing it realizes the requirement of partial discharge index.
Description
Technical field
The utility model belongs to resistive technologies field, in particular to power resistor in a kind of solder type.
Background technique
Resistor refers to made of resistance material there is certain structure type, and it is logical to play limitation electric current in circuit
Two end electronic components of the effect of crossing.Wherein, resistor is made of resistor body, skeleton and exit three parts.
In electrical equipment, rated power generallys use STO227 in 120W to the middle power planes resistor between 200W
Standard packaging, primary limitation are that creepage distance is shorter；Electric 10mm is climbed between electrode, is not able to satisfy the requirement of some users.
A kind of mid-size plane power resistance is disclosed in the utility model patent of Publication No. CN201984912U
Device, the resistor include nickel plating copper sheet, ceramic substrate, palladium-silver electrode, resistance slurry and four pins；The ceramic substrate weldering
It connects in the nickel-clad copper on piece；Printing sintering is sintered palladium-silver electrode and resistance slurry respectively for front and back on the ceramic substrate；It is described
Four pins are welded on the palladium-silver electrode.The nickel plating copper sheet (, the welding composite entities of ceramic substrate, four pins uses
Moulding press injection molded constitutes injection casing.The rated power of the mid-size plane power resistor of the utility model is 150W, electricity
Interpolar creepage distance can achieve 20mm, meet the requirement of user.
But this kind of pin is inconvenient in use, and positive negative side also cannot be distinguished in the symmetrical structure on both sides
To.
Summary of the invention
To solve the above problems, the purpose of this utility model is to provide power resistor in a kind of solder type, the resistance
Device, as pin, after fairlead stretching, keeps connection external connected electronic element more square using the tinned wird of rectangular diameter 1mm
Just, different fixation holes and at the both ends of resistor disc is devised, to distinguish both forward and reverse directions, also facilitates the electricity distinguished and connected
Resistance.
Another of the utility model is designed to provide power resistor in a kind of solder type, which passes through evagination
Firm banking extend creepage distance, and use shell packing forms, substantially increase its insulating capacity, make its satisfaction
The partial discharge index request of client.
To achieve the above object, the technical solution of the utility model is as follows.
Power resistor in a kind of solder type, includes resistor disc, and the package casing being arranged on resistor disc, described
The top printing sintering of resistor disc has resistance, and the two sides of the resistance are connected separately with pin, and each pin is rectangular
Diameter be 1mm tinned wird, the top of the package casing is provided with 4 firm bankings, on each firm banking
It is equipped with a fairlead, one end of each pin is stretched out from corresponding fairlead, one end of the resistor disc
Equipped with circular fixation hole, the other end of the resistor disc is equipped with the fixing groove of U-shaped.In the utility model, the resistor
Using the tinned wird of rectangular diameter 1mm as pin, after fairlead stretching, keep connection external connected electronic element more square
Just, different fixation holes and at the both ends of resistor disc is devised, to distinguish both forward and reverse directions, also facilitates the electricity distinguished and connected
Resistance, while the resistor extends creepage distance by the firm banking of evagination, and uses shell packing forms, greatly improves
Its insulating capacity, makes it meet the partial discharge index request of client.
Further, the quantity of the pin is 2-4.In the utility model, pin is set in the two sides of resistance, is drawn
The minimum number of foot is 2, or 3 or 4, can be according to different Demand Designs.
Further, the bottom of the resistor disc is provided with metal base plate, and the material of the metal base plate is red copper nickel plating, institute
The top for stating metal base plate is fixed with one piece of ceramic wafer, and the top printing sintering of the ceramic wafer has one layer of resistance, the resistance
Top be also coated with one layer of layer of silica gel.In the utility model, layer of silica gel plays certain buffering, protective effect, prevents
Because of the generation of potsherd fragmentation situation caused by being molded.
Further, the two sides of the metal base plate are provided with an inner groovy, and each inner groovy is enclosed ladder
Shape structure, there are two interior re-entrant angles for setting on two obtuse angles of the inner groovy.In the utility model, inner groovy and indent
Interior reentrant features in slot, can make package casing more firm, improve the mechanical strength and insulating properties of the resistor.
Further, the two sides of the resistance are all covered with foil silver electrode, and each foil silver electrode is arranged at ceramics
On plate, each pin is arranged in corresponding platinum silver electrode.In the utility model, platinum silver electrode can subtract
The probability of few pin poor contact at work, ensure that resistor operates normally for a long time.
Further, the material of the package casing is insulating resin, and the package casing is fixed by viscose glue and resistor disc
Connection.
Further, each firm banking is higher by package casing 1-2mm, is respectively provided between each firm banking
There is through slot.In the utility model, the through slot between each firm banking can greatly promote resistor creepage distance, avoid
Short circuit occurs, extends the service life of the resistor.
Further, stopper is provided between each firm banking, the stopper is arranged in through slot, institute
The shape for stating stopper is cross, is provided with glue filling opening in the middle part of the stopper, the upper of resistance is arranged in the glue filling opening
Portion.In the utility model, criss-cross stopper is able to extend the creepage distance of resistor, avoids that short circuit occurs, extends
The making of the resistor.
Further, the ceramic wafer is 96% alumina ceramic plate, and the shape of the resistance is rectangular block shape.It is practical at this
In novel, the structure of rectangular block shape can be improved resistance to pulse and the high power of the resistor body.
The beneficial effects of the utility model are: compared with prior art, function in a kind of solder type provided by the utility model
Rate resistor, the resistor, as pin, after fairlead stretching, keep connection outer using the tinned wird of rectangular diameter 1mm
It connects that electronic component is more convenient, and devises different fixation holes at the both ends of resistor disc, to distinguish both forward and reverse directions, also side
Just the resistance of connection is distinguished, while the resistor extends creepage distance by the firm banking of evagination, and seals using shell
Dress form substantially increases its insulating capacity, it is made to meet the partial discharge index request of client.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the top view of the utility model.
Fig. 3 is the top view of the resistor disc of the utility model.
Fig. 4 is the bottom view of the resistor disc of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
It include resistor disc referring to power resistor in a kind of solder type shown in Fig. 1-4, realized by the utility model
1, and the package casing 2 being poured on resistor disc 1, the top printing of resistor disc 1, which is sintered, resistance 3, the two sides difference of resistance 3
It is connected with pin 4, each pin 4 is the tinned wird that rectangular diameter is 1mm, and the top of package casing 2 is provided with 4 admittedly
Determine pedestal 21, a fairlead 22 is equipped on each firm banking 21, one end of each pin 4 is from right with it
The fairlead 22 answered stretches out, and one end of resistor disc 1 is equipped with circular fixation hole 51, and the other end of resistor disc 1 is equipped with the fixation of U-shaped
Slot 52.In the utility model, which, as pin, is stretched using the tinned wird of rectangular diameter 1mm from fairlead
After out, keep connection external connected electronic element more convenient, and devise different fixation holes at the both ends of resistor disc, to distinguish
Both forward and reverse directions also facilitate the resistance distinguished and connected, while the resistor extends creepage distance by the firm banking of evagination, and
And shell packing forms are used, its insulating capacity is substantially increased, it is made to meet the partial discharge index request of client.
In the present embodiment, the quantity of pin 4 is 2-4.In the utility model, in the two sides of resistance, setting is drawn
Foot, the minimum number of pin are 2, or 3 or 4, can be according to different Demand Designs.
In the present embodiment, the bottom of resistor disc 1 is provided with metal base plate 5, and the material of metal base plate 5 is red copper nickel plating,
The top of metal base plate 5 is fixed with one piece of ceramic wafer 6, and the top printing sintering of ceramic wafer 6 has one layer of resistance 3, the top of resistance 3
It is also coated with one layer of layer of silica gel.In the utility model, layer of silica gel plays certain buffering, protective effect, prevents because of injection molding
The generation of caused potsherd fragmentation situation.
In the present embodiment, the two sides of metal base plate 5 are provided with an inner groovy 53, and each inner groovy 53 is enclosed ladder
Shape structure, there are two interior re-entrant angles for setting on two obtuse angles of inner groovy 53.In the utility model, inner groovy and inner groovy
Interior interior reentrant features, can make package casing more firm, improve the mechanical strength and insulating properties of the resistor.
In the present embodiment, the two sides of resistance 3 are all covered with foil silver electrode 7, and each foil silver electrode 7 is arranged at ceramic wafer
On 6, each pin 4 is arranged in corresponding platinum silver electrode 7.In the utility model, platinum silver electrode can be reduced
The probability of pin poor contact at work, ensure that resistor operates normally for a long time.
In the present embodiment, the material of package casing 2 is insulating resin, and package casing 2 is fixed by viscose glue and resistor disc 1
Connection.
In the present embodiment, each firm banking 21 is higher by package casing 1-2mm, is all provided between each firm banking 21
It is equipped with through slot 23.In the utility model, the through slot between each firm banking can greatly promote resistor creepage distance,
It avoids that short circuit occurs, extends the service life of the resistor.
In the present embodiment, stopper 24 is provided between each firm banking 21, stopper 24 is arranged in through slot 23
Interior, the shape of stopper 24 is cross, and the middle part of stopper 24 is provided with glue filling opening 25, and resistance 3 is arranged in glue filling opening 25
Top.In the utility model, criss-cross stopper is able to extend the creepage distance of resistor, avoids that short circuit occurs, prolongs
The service life of the resistor is grown.
In the present embodiment, ceramic wafer 6 is 96% alumina ceramic plate, and the shape of resistance 3 is rectangular block shape.It is practical at this
In novel, the structure of rectangular block shape can be improved resistance to pulse and the high power of the resistor body.
The beneficial effects of the utility model are: compared with prior art, function in a kind of solder type provided by the utility model
Rate resistor, the resistor, as pin, after fairlead stretching, keep connection outer using the tinned wird of rectangular diameter 1mm
It connects that electronic component is more convenient, and devises different fixation holes at the both ends of resistor disc, to distinguish both forward and reverse directions, also side
Just the resistance of connection is distinguished, while the resistor extends creepage distance by the firm banking of evagination, and seals using shell
Dress form substantially increases its insulating capacity, it is made to meet the partial discharge index request of client.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.
Claims (9)
1. power resistor in a kind of solder type includes resistor disc, and the package casing being arranged on resistor disc, the electricity
The top printing sintering of resistance piece has resistance, which is characterized in that the two sides of the resistance are connected separately with pin, each pin
It is the tinned wird that rectangular diameter is 1mm, the top of the package casing is provided with 4 firm bankings, described each solid
Determine to be equipped with a fairlead on pedestal, one end of each pin is stretched out from corresponding fairlead, the resistance
One end of piece is equipped with circular fixation hole, and the other end of the resistor disc is equipped with the fixing groove of U-shaped.
2. power resistor in solder type according to claim 1, which is characterized in that the quantity of the pin is 2-4.
3. power resistor in solder type according to claim 1, which is characterized in that the bottom of the resistor disc is provided with
The material of metal base plate, the metal base plate is red copper nickel plating, and the top of the metal base plate is fixed with one piece of ceramic wafer, described
The top printing sintering of ceramic wafer has one layer of resistance, and the top of the resistance is also coated with one layer of layer of silica gel.
4. power resistor in solder type according to claim 3, which is characterized in that the two sides of the metal base plate are all provided with
It is equipped with an inner groovy, each inner groovy is enclosed trapezium structure, on two obtuse angles of the inner groovy there are two settings
Interior re-entrant angle.
5. power resistor in solder type according to claim 3, which is characterized in that the two sides of the resistance are all covered with
Foil silver electrode, each foil silver electrode are arranged on ceramic wafer, and each pin is arranged at corresponding platinum silver
On electrode.
6. power resistor in solder type according to claim 1, which is characterized in that the material of the package casing is exhausted
Edge resin, the package casing are fixedly connected by viscose glue with resistor disc.
7. power resistor in solder type according to claim 1, which is characterized in that each firm banking is higher by
Package casing 1-2mm is provided with through slot between each firm banking.
8. power resistor in solder type according to claim 7, which is characterized in that between each firm banking
It is provided with stopper, the stopper is arranged in through slot, and the shape of the stopper is cross, the middle part of the stopper
It is provided with glue filling opening, the top of resistance is arranged in the glue filling opening.
9. power resistor in solder type according to claim 3, which is characterized in that the ceramic wafer is 96% aluminium oxide
Ceramic wafer, the shape of the resistance are rectangular block shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820817205.2U CN208298644U (en) | 2018-05-25 | 2018-05-25 | Power resistor in a kind of solder type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820817205.2U CN208298644U (en) | 2018-05-25 | 2018-05-25 | Power resistor in a kind of solder type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208298644U true CN208298644U (en) | 2018-12-28 |
Family
ID=64722241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820817205.2U Active CN208298644U (en) | 2018-05-25 | 2018-05-25 | Power resistor in a kind of solder type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208298644U (en) |
-
2018
- 2018-05-25 CN CN201820817205.2U patent/CN208298644U/en active Active
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