Snap lock membrane connector

• US 5,934,933 A
• Filed: 06/20/1997
• Issued: 08/10/1999
• Est. Priority Date: 06/20/1997
• Status: Expired due to Fees

• Current Assignee: CTS Corporation
• Original Assignee: CTS Corporation
• Inventors: Kordecki, David L., Zdanys, John Jr.
• Primary Examiner(s): Bradley, Paula
• Assistant Examiner(s): WRIGHT, CECELIA B
• Application Number:
  US08/879,990
• Time in Patent Office: 781 Days
• Field of Search: 439/495, 439/271, 439/590, 439/77
• US Class Current: 439/495
• CPC Class Codes: H01R 12/7017 Snap means
• CPC Class Codes: H01R 12/772 Strain relieving means
• CPC Class Codes: H01R 12/777 Coupling parts carrying pins, blades or analogous contacts H01R12/78, H01R12/79 take precedence
• CPC Class Codes: H01R 12/88 acting manually by rotating or pivoting connector housing parts

Abstract

A device that allows for simple cost effective connections to flexible multilayered circuits and flexible membrane switches. The invention provides a connecting device that includes a housing that has a base and a closeable lid. At least one contact is attached to the housing. One end of the contact(s) extends beyond the housing and is suitable for making a connection to an electrical circuit. The other end of the contact(s) is positioned inside the housing for connecting to the flexible circuit board or flexible membrane. The lid can be fixed in the closed position whereby the end of the contact(s) inside the housing is compressed with the flexible circuit. The lid can be attached to the base with a hinge, and when the lid is closed it snap locks in place so that the contact(s) are firmly held to the conductive pads of flexible circuit. The membrane or flexible circuit is quickly and accurately positioned in place and securely held by using tabs on the housing which protrude through slots in the membrane or flexible circuit.

Claims

1. A connector for snap lock connecting to a flexible circuit having a first and second ply, comprising:

a) a housing having a base and a closeable lid;

b) a contact, attached to the housing, having;

1) a first end, extending beyond the housing, for connecting to a first electrical circuit; and

2) a second end, positioned inside the housing, for connecting to the flexible circuit; and

c) compression means, coupled to the housing, for compressing the second end between the first and second ply to make an electrical connection between the contact and the flexible circuit when the lid is fixedly closed.

2. The connector for snap lock connecting to a flexible circuit as set forth in claim 1, wherein the compression means comprises biased fingers integrally formed in the base and lid.

3. The connector for snap lock connecting to a flexible circuit as set forth in claim 1, further comprising a locking means for locking the lid closed.

4. The connector for snap lock connecting to a flexible circuit as set forth in claim 3, wherein the locking means comprises tabs located on the base and indentations on the lid.

5. The connector for snap lock connecting to a flexible circuit as set forth in claim 1, further comprising a positioning means for positioning the flexible circuit in the connector.

6. The connector for snap lock connecting to a flexible circuit as set forth in claim 5, wherein the positioning means comprises tabs formed on the connector and slots located in the flexible circuit.

7. A combination of a connector and a flexible circuit, comprising:

a) the flexible circuit having;

1) at least two plies, each having a terminal end positioned within the connector; and

2) a conductive pad, located on the terminal end and formed on an inner surface of each of the plies; and

b) the connector having;

1) a housing having a base and a closeable lid;

2) a contact, attached to the housing, having;

i) a first end, extending beyond the housing, for connecting to an electrical circuit; and

ii) a second end, positioned inside the housing, for connecting to the flexible circuit; and

3) compression means, coupled to the housing, for compressing the second end between the plies at the terminal end to make an electrical connection between the contact and the flexible circuit when the lid is fixedly closed.

8. The connector for snap lock connecting to a flexible circuit as set forth in claim 7, wherein the compression means comprises biased fingers integrally formed in the base and lid.

9. The connector for snap lock connecting to a flexible circuit as set forth in claim 7, further comprising a locking means for locking the lid closed.

10. The connector for snap lock connecting to a flexible circuit as set forth in claim 9, wherein the locking means comprises tabs located on the base and indentations on the lid.

11. The connector for snap lock connecting to a flexible circuit as set forth in claim 7, further comprising a positioning means for positioning the flexible circuit in the connector.

12. The connector for snap lock connecting to a flexible circuit as set forth in claim 11, wherein the positioning means comprises tabs formed on the connector and slots located in the flexible circuit.

13. A connector assembly for connecting to a flexible circuit, comprising:

a) a housing for connecting to the flex circuit;

b) the flexible circuit having at least two plies, each having a terminal end positioned within the housing; and

c) a contact having a first end, that is located between the two plies and positioned inside the housing, and a second end that extends beyond the housing.

14. The connector assembly according to claim 13, wherein the housing has a base and a closeable lid.

15. The connector assembly according to claim 14, further comprising:

a plurality of fingers, attached to the base and the lid, for compressing the second end between the plies at the terminal end to make an electrical connection between the contact and the flexible circuit when the lid is fixedly closed.

16. The connector assembly according to claim 13, wherein a conductive pad is located on the terminal end and formed on an inner surface of one of the plies, wherein the pad is electrically coupled to the contact.

17. The connector assembly according to claim 16, wherein a second conductive pad is located on the terminal end and formed on an inner surface of another ply, wherein the second pad is electrically coupled to the contact.