CN211858293U - High-inductance winding resistor - Google Patents
High-inductance winding resistor Download PDFInfo
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- CN211858293U CN211858293U CN201922456333.6U CN201922456333U CN211858293U CN 211858293 U CN211858293 U CN 211858293U CN 201922456333 U CN201922456333 U CN 201922456333U CN 211858293 U CN211858293 U CN 211858293U
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Abstract
The utility model relates to a wire winding resistance of high inductance reactance, including the resistance core, the resistance core includes first porcelain body and second porcelain body, and fixedly connected with hinders magnetism portion between first porcelain body and the second porcelain body, hinders magnetism portion and has seted up the through-hole, and spiral winding has the resistance wire on the resistance core, and the resistance wire cross connects the through-hole that hinders magnetism portion, and winding direction is opposite on the winding resistance wire on the first porcelain body and the second porcelain body of winding resistance wire, and the both ends of resistance core are connected with the end cap, and the end cap is connected with the pin, and the resistance wire is connected with the end cap. Compared with the prior resistor, the utility model discloses, through setting up two independent resistance core porcelain bodies, connect between two resistance core porcelain bodies and hinder magnetism portion to with different helical direction winding resistance wire on two resistance cores, and then the magnetic field that makes the resistor produce is by the separation and is offset, has prevented the interference of inductance phenomenon to the circuit, has guaranteed the even running of circuit.
Description
Technical Field
The utility model relates to a resistor field especially relates to a wire winding resistance of high inductance.
Background
The non-inductive resistor is one of resistors, has the characteristics of heat resistance, moisture resistance, low price and the like, has very small inductive reactance value which can be ignored, and is often used by some precise instruments and electronic industrial equipment, because the common resistor with high inductive reactance is easy to vibrate in use and damage other devices in a loop.
The inductance of the non-inductive winding resistor is reduced by adopting a double-wire winding mode with opposite winding directions, and because two resistance wires with opposite winding directions are wound in an overlapping mode, the inductance of the non-inductive winding resistor cannot be guaranteed to be mutually offset, the inductance of the non-inductive winding resistor is still very large, and the use of a high-precision instrument cannot be met.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model adopts the following technical scheme: the utility model provides a wire winding resistance of high inductance reactance, including the resistance core, the resistance core includes first porcelain body and second porcelain body, fixedly connected with hinders magnetism portion between first porcelain body and the second porcelain body, it has seted up the through-hole to hinder magnetism portion, spiral winding has the resistance wire on the resistance core, the through-hole of resistance wire cross-connection hinders magnetism portion, the winding opposite direction of winding resistance wire on winding resistance wire and the second porcelain body on the first porcelain body, the both ends of resistance core are connected with the end cap, the end cap is connected with the pin, the resistance wire is connected with the end cap.
The technical scheme can be further perfected as follows.
Further, the magnetism-resisting part comprises a shell, and a magnetism-resisting sheet is embedded in the shell.
It is further explained that the material of the magnetic resistance sheet is permalloy.
The shell is in a round cake shape, and the first ceramic body and the second ceramic body are respectively connected to two side faces of the shell.
It is further explained that the resistance wire is wound on the first porcelain body and the second porcelain body for the same number of turns.
It is further explained that the surface of the resistance wire is coated with an insulating protective layer.
The utility model has the advantages that: compared with the prior resistor, the utility model discloses, through setting up two independent resistance core porcelain bodies, connect between two resistance core porcelain bodies and hinder magnetism portion to with different helical direction winding resistance wire on two resistance cores, and then the magnetic field that makes the resistor produce is by the separation and is offset, has prevented the interference of inductance phenomenon to the circuit, has guaranteed the even running of circuit.
Drawings
The figures further illustrate the invention, but the embodiments in the figures do not constitute any limitation of the invention.
Fig. 1 is a schematic structural diagram of a winding resistor with high inductive reactance according to an embodiment of the present invention.
In the figure: 1-resistance core, 11-first porcelain body, 12-second porcelain body, 2-magnetism-resisting part, 21-through hole, 22-shell, 23-magnetism-resisting sheet, 3-resistance wire, 4-end cap and 5-pin
Detailed Description
To further understand the contents, features and functions of the present invention, the following embodiments are described.
As shown in fig. 1, an embodiment of the utility model provides a wire winding resistance of high inductance and reactance, including resistance core 1, resistance core 1 includes first porcelain body 11 and second porcelain body 12, fixedly connected with hinders magnetism portion 2 between first porcelain body 11 and the second porcelain body 12, it has seted up through-hole 21 to hinder magnetism portion 2, spiral winding has resistance wire 3 on resistance core 1, resistance wire 3 pierces through the through-hole 21 that hinders magnetism portion 2, winding 3 winding direction is opposite on winding resistance wire 3 on the first porcelain body 11 and the second porcelain body 12, resistance core 1's both ends are connected with end cap 4, end cap 4 is connected with pin 5, resistance wire 3 is connected with end cap 4.
The magnetism-resisting part 2 comprises a shell 22, and a magnetism-resisting sheet 23 is embedded in the shell 22. The material of the magnetism-resisting sheet 23 is permalloy. The shell 22 is in a shape of a round cake, and the first ceramic body 11 and the second ceramic body 12 are respectively connected to two side surfaces of the shell 22. The resistance wire 3 is wound on the first porcelain body 11 and the second porcelain body 12 for the same number of turns. The surface of the resistance wire 3 is coated with an insulating protective layer.
Specifically, referring to fig. 1, the resistance core 1 includes a first ceramic body 11 and a second ceramic body 12 which are independent of each other, a magnetic resistance portion 2 is connected between the two ceramic bodies, the magnetic resistance portion 2 includes a housing 22 and a magnetic resistance sheet 23 embedded in the housing 22, the magnetic resistance sheet 23 is permalloy and has an electromagnetic shielding effect, the magnetic resistance portion 2 is provided with a through hole 21, the resistance wire 3 starts to be spirally wound from an outer end of one of the ceramic bodies, when the resistance wire is wound to the magnetic resistance portion 2, the resistance wire passes through the through hole 21 of the magnetic resistance portion 2 to reach the other ceramic body, and the resistance wire 3 is wound on the other ceramic body in an opposite direction until the resistance wire is wound to the outer end of the ceramic body, and the number of turns of the resistance wire 3 wound on the first ceramic body 11 is the same as that.
This resistance during operation, because the principle of electricity magnetism generation, resistance wire 3 on first porcelain body 11 and the second porcelain body 12 will generate the magnetic field that the size is the same, opposite direction, and the two offsets each other, can be at the reduction inductance phenomenon of very big degree to the interference of circuit, and the magnetic resistance piece 23 that is located resistance core middle part simultaneously can effectively shield electromagnetic core internal magnetic field, further hinders the emergence of inductance phenomenon, and then reaches the effect of anti-interference and protection circuit normal work.
The casing 22 of the magnetism-resisting part 2 is in a round cake shape, and the diameter of the casing 22 is slightly larger than that of a porcelain body, so that the volume of the resistor can be properly reduced, and the appearance effect is improved. The surface of the resistance wire 3 is coated with an insulating protective layer, so that the resistance wire 3 can be protected, and the service life of the resistance wire 3 is prolonged.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. A winding resistor with high inductance is characterized in that: including resistance core (1), resistance core (1) includes first porcelain body (11) and second porcelain body (12), fixedly connected with hinders magnetism portion (2) between first porcelain body (11) and second porcelain body (12), hinder magnetism portion (2) and seted up through-hole (21), spiral winding has resistance wire (3) on resistance core (1), resistance wire (3) cross-under hinder through-hole (21) of magnetism portion (2), winding direction of winding resistance wire (3) on winding resistance wire (11) and the second porcelain body (12) is opposite, the both ends of resistance core (1) are connected with end cap (4), end cap (4) are connected with pin (5), resistance wire (3) are connected with end cap (4).
2. The high inductance wire-wound resistor of claim 1, wherein: the magnetism-resisting part (2) comprises a shell (22), and a magnetism-resisting sheet (23) is embedded into the shell (22).
3. The high inductance wire-wound resistor of claim 2, wherein: the material of the magnetic resistance sheet (23) is permalloy.
4. The high inductance wire-wound resistor of claim 2, wherein: the shell (22) is in a shape of a round cake, and the first ceramic body (11) and the second ceramic body (12) are respectively connected to two side faces of the shell (22).
5. The high inductance wire-wound resistor of claim 1, wherein: the resistance wire (3) is wound on the first porcelain body (11) and the second porcelain body (12) in the same number of turns.
6. The high inductance wire-wound resistor of claim 1, wherein: the surface of the resistance wire (3) is coated with an insulating protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922456333.6U CN211858293U (en) | 2019-12-30 | 2019-12-30 | High-inductance winding resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922456333.6U CN211858293U (en) | 2019-12-30 | 2019-12-30 | High-inductance winding resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211858293U true CN211858293U (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922456333.6U Active CN211858293U (en) | 2019-12-30 | 2019-12-30 | High-inductance winding resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211858293U (en) |
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2019
- 2019-12-30 CN CN201922456333.6U patent/CN211858293U/en active Active
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