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EP-3501329-B1 - SMART DEVICE KIT AND SMART DEVICE PROTECTIVE SLEEVE THEREOF

EP3501329B1EP 3501329 B1EP3501329 B1EP 3501329B1EP-3501329-B1

Inventors

  • LI, JIZHONG
  • LI, CHENYANG
  • WU, Chunxiong

Dates

Publication Date
20260506
Application Date
20170523

Claims (7)

  1. A smart device system, comprising: a smart device; and a protection case for the smart device, wherein the protection case comprises a rear case (1) and a cover plate (2) connected to a side edge of the rear case (1), a membrane switch (3) is disposed in the cover plate (2), an outer surface of the cover plate (2) comprises a key window (4) disposed corresponding to a key portion in a panel layer of the membrane switch (3), an extension wire (10) of a lower circuit layer of the membrane switch (3) extends out from an inside of the cover plate (2) to an inner surface of the rear case (1); and characterized in that a spring pogo pin connector (5) is disposed on the extension wire (10) of the lower circuit layer of the membrane switch (3) and is fixed to the inner surface of the rear case (1), a slot (6) is defined in the smart device and arranged corresponding to the spring pogo pin connector (5) for insertion of the spring pogo pin connector (5), the spring pogo pin connector (5) is detachably connected to the slot (6), a pogo pin base (7) is disposed in the slot (6), a contact point of the pogo pin base (7) is exposed in a rear end of the slot (6), the rear case (1) fits and is connected to a rear surface of the smart device, wherein an electrical connection is established between the membrane switch (3) and the smart device to allow signals generated from pressing the key portion to be transmitted to the smart device through the pogo pin connector (5) when the cover plate (2) is in a closed state.
  2. The smart device system according to claim 1, wherein a rim of the smart device is in close contact with a peripheral edge of the rear case (1), and the peripheral edge of the rear case (1) extends upward.
  3. The smart device assembly according to claim 1, wherein the smart device is connected to the rear case (1) through a magnetic structure.
  4. The smart device system according to claim 1, wherein the extension wire (10) of the lower circuit layer of the membrane switch (3) is extended from the inside of the cover plate (2) to an edge of the rear case (1), the spring pogo pin connector (5) is fixed to the edge of the cover plate (2) or disposed on an inner edge of the smart device, the slot (6) is disposed in a side edge of the body of the smart device and arranged corresponding to the spring pogo pin connector (5), and the pogo pin base (7) is disposed inside the body of the smart device and arranged corresponding to the slot (6).
  5. The smart device system according to claim 1, wherein the key portion of the panel layer of the membrane switch (3) includes buttons labelled numbers 0 to 9, buttons labelled symbols * and #, and a dial-out button.
  6. The smart device system according to claim 1, wherein a screen observation window (8) is disposed in the cover plate (2), and a transparent protection plate (9) is disposed in the screen observation window (8).
  7. The smart device system according to claim 6, wherein the screen observation window (8) is disposed in the top layer and the bottom layer, and a periphery of the protection plate (9) is disposed around the screen observation window (8) and between the top layer and the bottom layer.

Description

BACKGROUND Technical Field The present invention relates to a peripheral product for a smart device and in particular, to a protection case for a smart device. Related Art With development of a smart device (e.g. a smart phone, a tablet computer, or other electronic product having a display screen) market, there is an increasing demand for thinner and lighter smart devices having larger screens. However, some problems occur when the aforesaid demand is satisfied. A light and thin smartphone with a large screen has the following problems: a) screens are fragile and easily scratched; b) it is difficult to operate the smartphone with one hand; c) poor heat dissipation. The three problems result in poor customer experiences. In recent years, protection covers for mobile phones appear in the market. Although the protection covers can solve the problem that the smartphones are fragile and scratched easily, a 5-inch or larger screen smartphone needs a user to open its protection cover with both hands, and then the user can press a power button and unlock the screen, so it is troublesome and inconvenience to use the protection cover. US 2015/031347 A1, WO 2016/113736 A1, CN 103491215 A, CN 103581390 A, WO 2014183571 A, and CN204258877U are relevant prior arts for this field. SUMMARY The present invention provides a smart device assembly and a protection case for a smart device. The present invention has a simple structure that allows a user to operate a smart device with one hand and also protects the smart device at the same time. According to one aspect of the present invention, the present invention provides a protection case for a smart device. The protection case includes a rear case and a cover plate connected to a side edge of the rear case. A membrane switch is disposed in the cover plate. An outer surface of the cover plate includes a key window disposed corresponding to a key portion in a panel layer of the membrane switch. An extension wire of a lower circuit layer of the membrane switch is extended out from an inside of the cover plate. A spring pogo pin connector is disposed on the extension wire of the lower circuit layer of the membrane switch. A slot is formed in the smart device and is arranged corresponding to the spring pogo pin connector for insertion of a pogo pin of the spring pogo pin connector. A pogo pin base connected to a GPIO (general purpose input/output) pin of a processor of the smart device is disposed in the slot inside a body of the smart device. A contact point of the pogo pin base is exposed in a rear end of the slot. The key portion of the panel layer of the membrane switch includes buttons labelled numbers 0 to 9, buttons labelled symbols * and #, and a dial-out button. A screen observation window is disposed in the cover plate. A transparent protection plate is disposed in the screen observation window. The cover plate includes a top layer and a bottom layer, the key window is disposed in the top layer, the membrane switch is disposed between the top layer and the bottom layer, the screen observation window is disposed in the top layer and the bottom layer, and a periphery of the protection plate is disposed around the screen observation window and between the top layer and the bottom layer. The extension wire of the lower circuit layer of the membrane switch is extended from the inside of the cover plate to an edge of the rear case, the spring pogo pin connector is fixed to an edge of the cover plate, the slot is disposed in a side edge of the body of the smart device and arranged corresponding to the spring pogo pin connector, and the pogo pin base is disposed inside the body of the smart device and arranged corresponding to the slot. The extension wire of the lower circuit layer of the membrane switch is extended from the inside of the cover plate to an inner surface of the rear case, the spring pogo pin connector is fixed to the inner surface of the rear case, the slot is disposed on a rear shell of the smart device and arranged corresponding to the spring pogo pin connector, and the pogo pin base is disposed inside the body of the smart device and arranged corresponding to the slot. According to another aspect of the present invention, the present invention provides a smart device assembly. The smart device assembly includes a smart device and the foregoing protection case for the smart device. The rear case fits and is connected to a rear surface of the smart device. A rim of the smart device is in close contact with a peripheral edge of the rear case, and the peripheral edge of the rear case extends upward. The smart device is connected to the rear case through a magnetic structure. Compared to conventional techniques, the present invention has the following advantage. By using the membrane switch in the cover plate, the spring pogo pin connector is connected to the pogo pin base in a rear surface of the smart device. Accordingly, the membrane switch is connected to the