Electrical connection apparatus

• US 9,819,113 B2
• Filed: 08/09/2016
• Issued: 11/14/2017
• Est. Priority Date: 02/11/2014
• Status: Active Grant

• Current Assignee: Megger instruments Ltd
• Original Assignee: Megger instruments Ltd
• Inventors: Adams, Eddie, Gilham, Andrew
• Primary Examiner(s): Hammond, Briggitte R
• Application Number:
  US15/232,098
• Publication Number:
  US 20160352037A1
• Time in Patent Office: 462 Days
• CPC Class Codes: G01R 1/06788 Hand-held or hand-manipulated probes, e.g. for oscilloscopes or for portable test instruments end pieces terminating in a probe H01R11/18
• CPC Class Codes: H01R 11/24 with gripping jaws, e.g. crocodile clip
• CPC Class Codes: H01R 13/025 formed by the conductors of a cable end
• CPC Class Codes: H01R 13/4532 Rotating shutter
• CPC Class Codes: H01R 4/48 utilising a spring, clip, or other resilient member H01R4/52 takes precedence

Abstract

A clamp for establishing an electrical connection with a conductor is provided. The clamp comprises a first body and a second body. The second body is pivotally coupled to the first body. The first and second bodies define a receiving region therebetween for receiving a conductor. The first and second bodies are biased towards each other at the receiving region to clamp a conductor. The clamp also comprises a shutter, movably coupled to one of the first body and the second body. The shutter is biased into a restricting position in which entry into the receiving region is restricted.

Claims

1. A clamp for establishing an electrical connection with a conductor, the clamp comprising:

a first body;

a second body, pivotally coupled to the first body, the first and second bodies defining a receiving region therebetween for receiving a conductor, the first and second bodies being biased towards each other at the receiving region to clamp a conductor; and

a first shutter, movably coupled to the first body and a second shutter, movably coupled to the second body, the first shutter and the second shutter being biased into respective restricting positions in which entry into the receiving region is restricted.

2. The clamp of claim 1, wherein at least one of the first body and the second body comprises an electrical connection surface.

3. The clamp of claim 2, wherein the electrical connection surface and one or more of the first and second bodies comprise a notch for receiving a conductor, wherein the notch defines a notch region having a volume smaller than a volume of the receiving region.

4. The clamp of claim 3, wherein the notch is configured to prevent admission of an object having a diameter greater then 5 mm when the first body and the second body are proximate to each other.

5. The clamp of claim 1, wherein the first body comprises a first edge portion, and the second body comprises a second edge portion, the first and second edge portions defining an opening into the receiving region, wherein the first shutter and the second shutter are biased into respective positions which restrict entry into the receiving region via the opening.

6. The clamp of claim 5, wherein the opening has a diameter in the range of 15 mm to 65 mm when the first and second bodies are proximate to each other at the receiving region.

7. The clamp of claim 1, comprising shutter biasing means for biasing the first shutter into the respective restricting position.

8. The clamp of claim 1, wherein the first shutter is pivotally coupled to the first body.

9. The clamp of claim 1, comprising a shutter guide configured to define a range of motion of the first shutter.

10. The clamp of claim 1, comprising body biasing means biasing the first body towards the second body at the receiving region.

11. The clamp of claim 10, wherein the body biasing means comprises a spring.

12. The clamp of claim 1, comprising opening means operable to separate the first body and the second body at the receiving region.

13. The clamp of claim 12, wherein the opening means comprises:

a first handle, coupled to, or comprised by, the first body, and

a second handle, coupled to, or comprised by, the second body.

14. The clamp of claim 5,

wherein the first shutter and the second shutter are biased to substantially cover the opening when the first and second bodies are proximate to each other at the receiving region.

15. The clamp of claim 14, wherein the first shutter and the second shutter are separable.

16. The clamp of claim 1, comprising a further shutter movably coupled to the first body and arranged on an opposing side of the receiving region to the first shutter and the second shutter, the further shutter being biased into a position which restricts entry into the receiving region via the opposing side of the receiving region to the first shutter and the second shutter.

17. The clamp of claim 16, wherein the first body comprises a first further edge portion, the second body comprises a second further edge portion, the first and second further edge portions defining a further opening into the receiving region on the opposing side of the receiving region to the first shutter and the second shutter, the further shutter being biased into a position which restricts access into the receiving region via the further opening.

18. The clamp of claim 1, wherein one or more of the first body, the second body, the first shutter and the second shutter comprise an electrically insulating material.

19. The clamp of claim 1, wherein the first shutter and the second shutter are replaceable.