CN201984912U - Mid-size plane power resistor - Google Patents
Mid-size plane power resistor Download PDFInfo
- Publication number
- CN201984912U CN201984912U CN2010206976306U CN201020697630U CN201984912U CN 201984912 U CN201984912 U CN 201984912U CN 2010206976306 U CN2010206976306 U CN 2010206976306U CN 201020697630 U CN201020697630 U CN 201020697630U CN 201984912 U CN201984912 U CN 201984912U
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- China
- Prior art keywords
- ceramic substrate
- power resistor
- medium
- pins
- resistor
- 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 - Lifetime
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Abstract
The utility model discloses a mid-size plane power resistor comprising a nickel-plating copper sheet (1), a ceramic substrate (2), a palladium silver electrode (3), resistor slurry (4), and four pins (5), wherein the ceramic substrate (2) is welded on the nickel-plating copper sheet (1); the palladium silver electrode (3) and the resistor slurry (4) are printed and sintered on the front and the back of the ceramic substrate (2) respectively; the four pins (5) are welded on the palladium silver electrode (3); and the welding combination of the nickel-plating copper sheet (1), the ceramic substrate (2) and the four pins (5) form an injection-molded casing (6) via integral injection molding by a mould press. The mid-size plane power resistor has a rated power of 150W, and the creepage distance among electrodes can reach up to 20mm, meeting requirements of users.
Description
Technical field
The utility model relates to the resistive technologies field, particularly relates to power planes resistor in a kind of nonstandard external form.
Background technology
In electric equipment, the middle power planes resistor of rated power between 120W to 200W adopts the STO227 standard packaging usually, and it is shorter that it mainly is limited as creepage distance; Creepage 10mm between electrode can not satisfy some users' requirement.
The utility model content
Problem to be solved in the utility model provides power planes resistor in a kind of nonstandard external form, with the short shortcoming of resistor creepage distance that overcomes prior art.
For achieving the above object, the technical solution of the utility model provides power planes resistor in a kind of nonstandard external form, and described power resistor comprises nickel plating copper sheet, ceramic substrate, palladium-silver electrode, resistance slurry, four pins and injection casing;
Described ceramic substrate is welded on the described nickel plating copper sheet;
Print sintering palladium-silver electrode and resistance slurry before and after on the described ceramic substrate respectively;
Described four pins are welded on the described palladium-silver electrode.
Further, the length of described ceramic substrate is that 21mm, width are that 19.5mm, thickness are 0.635mm.
Further, described ceramic substrate is 96% alumina ceramic substrate.
Further, the length of described nickel plating copper sheet is that 46mm, width are that 21mm, thickness are 2mm.
Further, scribble one deck glass uranium on the described resistance slurry.
Further, described injection casing is 17.5mm from pin to base plate distance, isolates the high 5mm of ledge between pin, wide 1.5mm, and air line distance is 9.3mm between two pins.
Compared with prior art, the technical solution of the utility model has following advantage:
The rated power of medium-sized planar power resistor of the present utility model is 150W, and creepage distance can reach 20mm between electrode, has satisfied user's requirement.
Description of drawings
Fig. 1 is the structural representation of medium-sized planar power resistor of the present utility model;
Fig. 2 is the stereoscopic-state structure chart of medium-sized planar power resistor of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
The structure of medium-sized planar power resistor of the present utility model such as Fig. 1 are to shown in Figure 2, and described power resistor comprises nickel plating copper sheet (1), ceramic substrate (2), palladium-silver electrode (3), resistance slurry (4), four pins (5) and injection casing (6);
Described ceramic substrate (2) is welded on the described nickel plating copper sheet (1);
Before and after going up, described ceramic substrate (2) prints sintering palladium-silver electrode (3) and resistance slurry (4) respectively;
Described four pins (5) are welded on the described palladium-silver electrode (3).
The length of described ceramic substrate (2) is that 21mm, width are that 19.5mm, thickness are 0.635mm.
Described ceramic substrate (2) is 96% alumina ceramic substrate.
The length of described nickel plating copper sheet (1) is that 46mm, width are that 21mm, thickness are 2mm.
Scribble one deck glass uranium on the described resistance slurry (4).
Described injection casing (6) is 17.5mm from pin to base plate distance, isolates the high 5mm of ledge between pin (5), wide 1.5mm, and air line distance is 9.3mm between two pins (5).
Medium-sized planar power resistor preparation process of the present utility model is as follows:
At long 21mm, wide 19.5mm, before and after going up, 96% ceramic substrate (2) of thickness 0.635mm prints sintering palladium-silver electrode (3) through 850 ℃ of high temperature respectively, resistance slurry (4), on resistance slurry (3), be coated with one deck glass uranium (through 550 ℃ of sintering) again, by positioning module whole ceramic ceramics (2) is positioned at long 46mm then, wide 21mm, the nickel plating copper sheet (1) of thickness 2mm is gone up (evenly coating solder(ing) paste between the two), again whole part more than it is put into welding mould internal fixation, by the welding mould four pins (5) are positioned at palladium-silver electrode (3) and go up (evenly coating solder(ing) paste between the two), all put into vacuum brazing stove at last and carry out vacuum welding, the product after the welding is coated silica gel carry out injection moulding again and can finish.
The rated power of medium-sized planar power resistor of the present utility model is 150W, and creepage distance can reach 20mm between electrode, has satisfied user's requirement.
Described only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (6)
1. one kind medium-sized planar power resistor is characterized in that, described resistor comprises nickel-clad copper sheet (1), ceramic substrate (2), palladium-silver electrode (3), resistance slurry (4), four pins (5) and injection casing (6); Described ceramic substrate (2) is welded on the described nickel plating copper sheet (1); Before and after going up, described ceramic substrate (2) prints sintering palladium-silver electrode (3) and resistance slurry (4) respectively; Described four pins (5) are welded on the described palladium-silver electrode (3).
2. a kind of medium-sized planar power resistor as claimed in claim 1 is characterized in that, the length of described ceramic substrate (2) is that 21mm, width are that 19.5mm, thickness are 0.635mm.
3. a kind of medium-sized planar power resistor as claimed in claim 1 is characterized in that described ceramic substrate (2) is 96% alumina ceramic substrate.
4. a kind of medium-sized planar power resistor as claimed in claim 1 is characterized in that, the length of described nickel plating copper sheet (1) is that 46mm, width are that 21mm, thickness are 2mm.
5. a kind of according to claim 1 medium-sized planar power resistor is characterized in that, scribbles one deck glass uranium on the described resistance slurry (4).
6. a kind of medium-sized planar power resistor as claimed in claim 1, it is characterized in that described injection casing (6) is 17.5mm from pin (5) to base plate distance, isolates the high 5mm of ledge between pin (5), wide 1.5mm, air line distance is 9.3mm between two pins (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206976306U CN201984912U (en) | 2010-12-31 | 2010-12-31 | Mid-size plane power resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206976306U CN201984912U (en) | 2010-12-31 | 2010-12-31 | Mid-size plane power resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201984912U true CN201984912U (en) | 2011-09-21 |
Family
ID=44612368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206976306U Expired - Lifetime CN201984912U (en) | 2010-12-31 | 2010-12-31 | Mid-size plane power resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201984912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065308A (en) * | 2018-08-06 | 2018-12-21 | 中国振华集团云科电子有限公司 | A kind of TO-247 encapsulation power resistor manufacturing method |
| EP3511955A4 (en) * | 2016-09-07 | 2019-08-21 | NR Electric Co., Ltd. | Housing structure of planar resistor |
-
2010
- 2010-12-31 CN CN2010206976306U patent/CN201984912U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3511955A4 (en) * | 2016-09-07 | 2019-08-21 | NR Electric Co., Ltd. | Housing structure of planar resistor |
| US10636548B2 (en) | 2016-09-07 | 2020-04-28 | Nr Engineering Co., Ltd | Housing structure of planar resistor |
| CN109065308A (en) * | 2018-08-06 | 2018-12-21 | 中国振华集团云科电子有限公司 | A kind of TO-247 encapsulation power resistor manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |