CN202940079U - Cylindrical resistor - Google Patents
Cylindrical resistor Download PDFInfo
- Publication number
- CN202940079U CN202940079U CN 201220623016 CN201220623016U CN202940079U CN 202940079 U CN202940079 U CN 202940079U CN 201220623016 CN201220623016 CN 201220623016 CN 201220623016 U CN201220623016 U CN 201220623016U CN 202940079 U CN202940079 U CN 202940079U
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- China
- Prior art keywords
- groove
- resistor
- cylindrical
- cylindrical resistor
- column
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Abstract
The utility model discloses a cylindrical resistor which comprises at least one cylindrical resistor body, wherein the cylindrical resistor body comprises a first bottom surface and a second bottom surface; a groove is formed in the first bottom surface, a bulge is arranged on the second bottom surface in a position corresponding to the groove, and is matched with the groove. The cylindrical resistor well solves the problem that the cylindrical resistors are easy to conduct relative displacement due to the actual effect of friction force, resulting in unstable resistance value. The cylindrical resistor is simple in structure and principle, and is provided with the groove and the corresponding bulge, so that during a pottery firing process, only a mold is changed slightly, and the cost is basically not added; and the cylindrical resistor has the necessity and realistic possibility of generalization and implementation.
Description
Technical field
The present invention relates to a kind of column resistor.
Background technology
The column resistor that the column resistor combination forms, nonmetallic resistor normally, the various advantages such as nonmetallic resistor is large with its Standard resistance range, volume is little, easy for installation is widely used in every field.And the column resistor is usually fired by nonmetallic materials (as pottery) and is formed, and is column, and the resistor of each column is stacked together, and through serial or parallel connection, forms the resistor of different resistances.
Between each adjacent column resistor, main by frictional force own between its contact-making surface, guarantee not occur each other relative displacement, and only rely on frictional force, its reliability is lower, especially through using for a long time, or need in use procedure when mobile, may relative sliding between each column resistor, dislocation relatively occurs, cause the resistance of resistor unstable, affected the normal operation of resistor.
Therefore, need a kind of new column resistor to address the above problem.
Summary of the invention
Goal of the invention: the objective of the invention is the defective for the column resistor of prior art, a kind of column resistor of stable connection is provided.
Technical scheme: for achieving the above object, column resistor of the present invention can adopt following technical scheme:
A kind of column resistor, comprise at least one cylindrical resistance, described cylindrical resistance comprises the first bottom surface and the second bottom surface, is provided with groove on described the first bottom surface, position corresponding with described groove on described the second bottom surface is provided with projection, and described projection matches with described groove.
Further, the cross section of described groove is semicircle, triangle or trapezoidal, and the cross section of described projection is identical with the shape of cross section of described groove.
Further, be provided with high-temperature insulation coating on described the first bottom surface and the second bottom surface.The upper and lower surface of cylindrical resistance device all scribbles high-temperature insulation coating, can guarantee oxidative phenomena can not occur when the excess Temperature of resistor sheet, can not disturb each other, has further improved the stability of resistor resistance;
Further, described cylindrical resistance is hollow structure, and the thickness of the sidewall of described cylindrical resistance is 0.2mm-1mm.Replace the embedded resistor silk by the cylindrical cavity resistance that adopts hollow, structural strength is high, and area of dissipation is large, and power density is high.
Further, the length of described groove is the 1/3-1/2 of described cylindrical resistance diameter.
Beneficial effect: column resistor of the present invention has well solved each cylindrical resistance of column resistor in use easily because relative displacement occurs the actual effect of frictional force, causes the unsettled problem of resistance of resistor; Simple in structure, principle is simple, the structure of its groove and respective protrusions, as long as mould is slightly done to change when ceramic sintering, cost does not have to increase substantially, has necessity and the realistic possibility of promotion and implementation.
Description of drawings
Fig. 1 is the structural representation of column resistor of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only is used for explanation the present invention and is not used in and limits the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
See also Fig. 1, Fig. 2 and shown in Figure 3, column resistor of the present invention, comprise at least one cylindrical resistance 1, cylindrical resistance 1 comprises the first bottom surface 11 and the second bottom surface 12, be provided with groove 111 on the first bottom surface 11, on the second bottom surface 12, the position corresponding with groove 111 is provided with projection 121, and projection 121 matches with groove 111.Wherein, the cross section of groove 111 is semicircle, triangle or trapezoidal, and the cross section of projection 121 is identical with the shape of cross section of groove 111.Be provided with high-temperature insulation coating on the first bottom surface 11 and the second bottom surface 12.The first bottom surface 11 and second bottom surface 12 of cylindrical resistance 1 all scribble high-temperature insulation coating, can guarantee oxidative phenomena can not occur when the excess Temperature of resistor sheet, can not disturb each other, have further improved the stability of resistor resistance; Cylindrical resistance 1 is hollow structure, and the thickness of the sidewall of cylindrical resistance 1 is 0.2mm-1mm.Replace the embedded resistor silk by the cylindrical cavity resistance that adopts hollow, structural strength is high, and area of dissipation is large, and power density is high.The length of groove 111 is the 1/3-1/2 of cylindrical resistance 1 diameter.
Column resistor of the present invention has well solved each cylindrical resistance 1 of column resistor in use easily because relative displacement occurs the actual effect of frictional force, causes the unsettled problem of resistance of resistor; Simple in structure, principle is simple, the structure of its groove and respective protrusions, as long as mould is slightly done to change when ceramic sintering, cost does not have to increase substantially, has necessity and the realistic possibility of promotion and implementation.
Claims (6)
1. column resistor, comprise at least one cylindrical resistance, it is characterized in that: described cylindrical resistance comprises the first bottom surface and the second bottom surface, be provided with groove on described the first bottom surface, position corresponding with described groove on described the second bottom surface is provided with projection, and described projection matches with described groove.
2. column resistor according to claim 1 is characterized in that: the cross section of described groove is semicircle, triangle or trapezoidal, and the cross section of described projection is identical with the shape of cross section of described groove.
3. column resistor according to claim 1, is characterized in that: be provided with high-temperature insulation coating on described the first bottom surface and the second bottom surface.
4. column resistor according to claim 1, it is characterized in that: described cylindrical resistance is hollow structure.
5. column resistor according to claim 1, it is characterized in that: the thickness of the sidewall of described cylindrical resistance is 0.2mm-1mm.
6. column resistor according to claim 1, it is characterized in that: the length of described groove is the 1/3-1/2 of described cylindrical resistance diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220623016 CN202940079U (en) | 2012-11-22 | 2012-11-22 | Cylindrical resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220623016 CN202940079U (en) | 2012-11-22 | 2012-11-22 | Cylindrical resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940079U true CN202940079U (en) | 2013-05-15 |
Family
ID=48324304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220623016 Expired - Fee Related CN202940079U (en) | 2012-11-22 | 2012-11-22 | Cylindrical resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940079U (en) |
-
2012
- 2012-11-22 CN CN 201220623016 patent/CN202940079U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20131122 |