Variable resistance and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-9728309-B2
Application number	US-201314375908-A
Country	US
Kind code	B2
Filing date	Sep 22, 2013
Priority date	May 21, 2013
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

Abstract

Embodiments of the present disclosure disclose a variable resistance and a manufacturing method thereof, and the variable resistance is a variable resistance with continually adjustable resistance value. This variable resistance comprises: an elastic insulation envelope and conductive particles filled in the elastic insulation envelope. The manufacturing method of the variable resistance comprises: filling conductive particles into an elastic insulation envelope with an opening; and sealing the opening of the elastic insulation envelope.

First claim

The invention claimed is:

1. A variable resistance comprising:
an elastic insulation envelope; and
conductive particles filled in the elastic insulation envelope;
wherein the conductive particles are in electrical connection with each other.

2. The variable resistance according to claim 1 , further comprising:
first insulating particles mixed with the conductive particles in proportion, the first insulating particles and the conductive particles filled in the elastic insulation envelope together.

3. The variable resistance according to claim 1 , wherein
the conductive particles are second insulating particles coated with conductor coatings.

4. The variable resistance of claim 2 , wherein a weight ratio of the insulating particles ( 5 ) to the conductive particles ( 2 ) ranges from 4:1 to 1:1.

5. The variable resistance according to claim 2 , wherein
the conductive particles are second insulating particles coated with conductor coatings.

6. The variable resistance according to claim 2 , wherein
the elastic insulation envelope has a cylinder structure.

7. The variable resistance according to claim 2 , further comprising:
an insulating plug inserted partially into each end of the elastic insulation envelope; and
a wiring post extending through the insulating plug, one end of each wiring post contacting the conductive particles filled in the elastic insulation envelope, and the other end of the wiring post extending beyond the insulating plug.

8. The variable resistance according to claim 3 , wherein
both the first insulating particles and the second insulating particles are made of an insulating resin.

9. The variable resistance according to claim 3 , wherein
both the first insulating particles and the second insulating particles are made of an insulating resin.

10. The variable resistance according to claim 3 , further comprising:
an insulating plug inserted partially into each end of the elastic insulation envelope; and
a wiring post extending through the insulating plug, one end of each wiring post contacting the conductive particles filled in the elastic insulation envelope, and the other end of the wiring post extending beyond the insulating plug.

11. The variable resistance according to claim 1 , wherein
the elastic insulation envelope has a cylinder structure.

12. The variable resistance according to claim 1 , further comprising:
an insulating plug inserted partially into each end of the elastic insulation envelope; and
a wiring post extending through the insulating plug, one end of each wiring post contacting the conductive particles filled in the elastic insulation envelope, and the other end of the wiring post extending beyond the insulating plug.

13. The variable resistance according claim 12 , wherein
the insulating plug has a supporting section and a plugging section, a size of cross-section of the supporting section is greater than that of the plugging section, and the plugging section fits into the elastic insulation envelope.

14. A method for manufacturing a variable resistance, comprising:
filling conductive particles into an elastic insulation envelope with an opening; and
sealing the opening of the elastic insulation envelope.

15. The method according to claim 14 , wherein before the filling conductive particles into the elastic insulation envelope, the method further comprises:
piercing a wiring post into and making the wiring post extend through an insulating plug; and
inserting the insulating plug with the wiring post into one end of the elastic insulation envelope.

16. The method according to claim 15 , wherein the sealing openings of the elastic insulation envelope comprises:
inserting an insulating plug into the other end of the elastic insulation envelope;
piercing an wiring post into the insulating plug at the other end of the elastic insulation envelope.

17. The method according to claim 15 , wherein the filling the conductive particles into the elastic insulation envelope comprises:
filling conductive particles and first insulating particles mixed in proportion into the elastic insulation envelope with one end inserted with the insulating plug.

18. The method according to claim 17 , wherein
the conductive particles are second insulating particles coated with conductor coatings, and the first insulating particles and the second insulating particles are made of an insulating resin.

19. The method according to claim 17 , wherein a weight ratio of the insulating particles ( 5 ) to the conductive particles ( 2 ) ranges from 4:1 to 1:1.

20. The method according to claim 14 , wherein the elastic insulation envelope has a cylinder structure.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Wang Hong
• Zhao Tianyue
• Han Yanling

Classifications

• H01C17/02

  adapted for manufacturing resistors with envelope or housing (apparatus or processes for filling or compressing insulating material in heating element tubes H05B3/52) · CPC title

• H01C17/28

  adapted for applying terminals · CPC title

• H01C1/02

  Housing; Enclosing; Embedding; Filling the housing or enclosure · CPC title

• Y10T29/49099

  Coating resistive material on a base · CPC title

• H01C10/106 Primary

  on resistive material dispersed in an elastic material (H01C10/103 and H01C10/12 take precedence; for electric switches H01H1/029) · CPC title