Battery operated razor
View Patent ↗Handle is provided for battery operated razors. In some implementations, the handle includes a simple, efficient mechanism for both securing a battery cover to the handle of a razor and at the same time providing a high reliability electrical contact between the battery and electronics of the razor. The mechanism includes a closing system, including a first conductive component slidably attached within the battery cover and biased toward a predetermined axial position, and a second conductive component secured to the interior wall of the grip portion. The first conductive component is configured to interact with the second conductive component and move axially within the battery cover during engagement of the battery cover with the grip portion.
1. A battery operated razor comprising:
a grip tube having an exterior wall defining a chamber having an interior wall and an open end;
a battery cover having an exterior wall defining a cavity having an interior wall and an open end, the battery cover removably mounted on the grip tube, wherein the grip tube chamber and battery cover cavity are configured to contain one or more batteries, and
a closing system comprising a first threaded portion at the grip tube chamber open end and a second threaded portion at the battery cover cavity open end mating with the first threaded portion, the closing system further comprising a first conductive component and a second conductive component, the first conductive component is slidably attached to the interior wall of the battery cover cavity and biased toward a predetermined axial position, the second conductive component is secured to the interior wall of the grip tube chamber;
the first conductive component comprises a contact surface facing and extending circumferentially about the battery cover cavity open end, the first conductive component contact surface comprises a first end and a second end opposite the first end and a kinked portion proximate the second end extending from the contact surface;
the second conductive component comprises a contact surface facing and extending circumferentially about the grip tube chamber open end, the second conductive component contact surface comprises a first end and a second end opposite the first end and a protrusion proximate the second end extending from the contact surface; wherein during attachment of the battery cover to the grip tube, the first conductive component contact surface interfaces with the second conductive component contact surface wherein the kinked portion of the first conductive component contact surface interferes with the second conductive component contact surface deflecting the first conductive component axially as the kinked portion slides circumferentially along of the second conductive component contact surface producing an audible click as the kinked portion slides over the protuberance on the second conductive component contact surface signaling good connection.
2. The razor of claim 1 wherein the first and second components are electrically conductive.
3. The razor of claim 1 wherein the first conductive component is biased towards the battery cover cavity open end of the battery cover.
4. The razor of claim 1 wherein the first conductive component includes a spring element configured to apply an axial force between the grip tube and battery cover when the first and second conductive components are engaged.
5. The razor of claim 1 wherein engagement of the first and second conductive components provides an electrical connection between the first and second conductive components.
6. The razor of claim 1 further comprising electronic components disposed within the grip tube chamber.
7. The razor of claim 6 wherein the second conductive component extends from a carrier on which the electronics are mounted within the chamber.
8. The razor of claim 7 wherein the second conductive component includes a portion configured to make electrical contact with the electronics.
9. The razor of claim 8 wherein the carrier comprises one or more power rails interconnecting the electronics.
10. The razor of claim 9 wherein the electronics are configured to drive a vibrating function of the razor.
11. The razor of claim 1 further comprising a battery spring positioned in the battery cover to bias one or more batteries within the battery cover cavity and the grip tube chamber towards an electrical contact at an end of the grip tube opposite the grip tube open end.