Housing structure of planar resistor

• US 10,636,548 B2
• Filed: 09/05/2017
• Issued: 04/28/2020
• Est. Priority Date: 09/07/2016
• Status: Active Grant

• Current Assignee: NR Electric Co., Ltd., NR Electric Power Electronics Co., Ltd., Nr Engineering Co.,Ltd.
• Original Assignee: Nr Engineering Co.,Ltd.
• Inventors: Zhang, Xiang, Chen, Chihan, Li, Zhao, Song, Ge, Zheng, Li, Yang, Fan
• Primary Examiner(s): Lee, Kyung S
• Assistant Examiner(s): Malakooti, Iman
• Application Number:
  US16/331,134
• Publication Number:
  US 20190259513A1
• Time in Patent Office: 966 Days
• Field of Search: 338273
• CPC Class Codes: H01C 1/02 Housing; Enclosing; Embedding; Filling the housing or enclosure
• CPC Class Codes: H01C 1/022 the housing or enclosure being openable or separable from the resistive element
• CPC Class Codes: H01C 1/14 Terminals or tapping points or electrodes specially adapted for resistors in general H01R; Arrangements of terminals or tapping points or electrodes on resistors

Abstract

A housing structure of a planar resistor is provided, wherein electrode extraction ends of the planar resistor are on the same side of the resistor. A housing structure body is made of an insulating material covering the surface of the resistor. An insulating structure having a groove opening facing toward or away from the resistor is provided around each electrode extraction end of the resistor. The insulating structure is configured to be a multi-tooth or multi-groove insulating structure.

Claims

1. A housing structure of a planar resistor, wherein all electrode extraction ends of the planar resistor are on the same side;

a body of the housing structure is made of an insulating material covering a surface of the resistor;

an insulating structure having a groove opening facing toward the resistor is disposed to surround the electrode extraction ends of the planar resistor;

one end of the groove opening of the insulating structure is of a multi-tooth or multi-groove structure, and an outer top surface of the other end of the insulating structure is a flat surface or a cambered surface or a waved surface; and

the opening of the multi-tooth or multi-groove structure after installation faces toward the ground.

3. The housing structure of the planar resistor according to claim 1, wherein a cross section of a tooth groove of the multi-tooth or multi-groove insulating structure is in a shape capable of increasing a creepage distance, including a square shape, a triangle shape or an arc shape.

4. The housing structure of the planar resistor according to claim 1, wherein the structure is suitable for a resistor with electrode extraction ends mounted facing away from the ground or sidewise relative to the ground.

5. The housing structure of the planar resistor according to claim 1, wherein the insulating structure completely wraps around the electrodes, or wraps around the electrodes within a partial region.

7. The housing structure of the planar resistor according to claim 1, wherein the insulating structure is constructed to surround two electrodes, or constructed between two electrodes.

8. The housing structure of the planar resistor according to claim 1, wherein a housing of the planar resistor is provided with a mounting wing plate, and a connection of the mounting wing plate and the body of the planar resistor are reinforced by a circular arc or an inclined surface.

2. A housing structure of a planar resistor, wherein electrode extraction ends of the planar resistor are on the same side;

a body of the housing structure is made of an insulating material covering a surface of the resistor;

an insulating structure having a groove opening facing away from the resistor is disposed to surround the electrode extraction ends of the planar resistor;

one end of the groove opening of the insulating structure is of a multi-tooth or multi-groove structure, and an outer top surface of the other end of the insulating structure is a flat surface or a cambered surface or a waved surface; and

the opening of the multi-tooth or multi-groove structure after installation faces toward the ground.

9. The housing structure of the planar resistor according to claim 2, wherein a cross section of a tooth groove of the multi-tooth or multi-groove insulating structure is in a shape capable of increasing a creepage distance, including a square shape, a triangle shape or an arc shape.

10. The housing structure of the planar resistor according to claim 2, wherein the structure is suitable for a resistor with electrode extraction ends mounted facing toward the ground.

11. The housing structure of the planar resistor according to claim 2, wherein the insulating structure completely wraps around the electrodes, or wraps around electrodes within a partial region.

13. The housing structure of the planar resistor according to claim 2, wherein the insulating structure is constructed to surround two electrodes, or constructed between two electrodes.

14. The housing structure of the planar resistor according to claim 2, wherein a housing of the planar resistor is provided with a mounting wing plate, and the connection of the mounting wing plate and the body of the planar resistor is reinforced by a circular arc or an inclined surface.

6. A housing structure of a planar resistor, wherein all electrode extraction ends of the planar resistor are on the same side;

a body of the housing structure is made of an insulating material covering a surface of the resistor;

an insulating structure having a groove opening facing toward the resistor is disposed to surround the electrode extraction ends of the planar resistor; and

the insulating structure is configured to be a structure of an insulating cover nut as a whole and allows inverted mounting according to an orientation of the electrode extraction ends.

15. The housing structure of the planar resistor according to claim 6, wherein the structure is suitable for a resistor with electrode extraction ends mounted facing away from the ground or sidewise relative to the ground.

16. The housing structure of the planar resistor according to claim 6, wherein the insulating structure completely wraps around the electrodes, or wraps around the electrodes within a partial region.

17. The housing structure of the planar resistor according to claim 6, wherein the insulating structure is constructed to surround two electrodes.

18. The housing structure of the planar resistor according to claim 6, wherein a housing of the planar resistor is provided with a mounting wing plate, and a connection of the mounting wing plate and the body of the planar resistor is reinforced by a circular arc or an inclined surface.

12. A housing structure of a planar resistor, wherein electrode extraction ends of the planar resistor are on the same side;

a body of the housing structure is made of an insulating material covering a surface of the resistor;

an insulating structure having a groove opening facing away from the resistor is disposed to surround the electrode extraction ends of the planar resistor; and

the insulating structure is configured to be a structure of an insulating cover nut as a whole and allows inverted mounting according to an orientation of the electrode extraction ends.

19. The housing structure of the planar resistor according to claim 12, wherein the structure is suitable for a resistor with electrode extraction ends mounted facing toward the ground.

20. The housing structure of the planar resistor according to claim 12, wherein the insulating structure completely wraps around the electrodes, or wraps around electrodes within a partial region.

21. The housing structure of the planar resistor according to claim 12, wherein the insulating structure is constructed to surround two electrodes.

22. The housing structure of the planar resistor according to claim 12, wherein a housing of the planar resistor is provided with a mounting wing plate, and the connection of the mounting wing plate and the body of the planar resistor is reinforced by a circular arc or an inclined surface.