Description

A kind of NFC-based smart ink screen mobile phone case 
Technical field 
The present invention relates to the technical field of mobile phone case equipment, specifically a kind of NFC-based smart ink screen mobile phone case.
Background Technology 
A mobile phone case is an ornament that protects or decorates the appearance of a mobile phone, and better protects the mobile phone against falls, scratches, water, and shocks; e-ink is a new method and technology that revolutionises the display of information. Like most traditional inks, e-ink and the lines that change its colour are printable onto many surfaces, from bent plastic, mylar, paper to cloth, and the difference with traditional paper is that e-ink changes colour when energised and can display changing images like a traditional screen.
Existing ink screen mobile phone cases usually use a separate power supply and need to be charged after a period of time, so that it has a certain amount of non-deformation in use, while the charging structure of the mobile phone case will increase the thickness and weight of the case, the main purpose of the mobile phone case is to protect the mobile phone, and the increase in the thickness and weight of the mobile phone case, the inconvenience to the carrying and use of the mobile phone also affects the degree of aesthetics, so we need to put forward an NFC-based smart ink screen mobile phone case.

Content of the invention

An object of the present invention is to provide an NFC-based smart ink screen cell phone case, having the advantage of adopting a passive low-power means, which enables the transmission of pictures and text through NFC and does not cause the cell phone to draw power, thus affecting the cell phone's battery consumption, in order to solve the problems raised in the above background technology.
In order to achieve the above purpose, the present invention provides the following technical solution: an NFC-based smart ink screen cell phone case comprising a cell phone case body, said cell phone case body comprising a back plate, an upper end plate, a lower end plate, and a side plate, said upper end plate and lower end plate being mounted at the upper and lower ends of one side of the back plate respectively, and said side plate being mounted at the two sides of the back plate respectively; 
a voice hole is open on the surface of said upper end plate, and a charging slot and a voice broadcasting slot are opened on the surface of said lower end plate respectively. said upper end plate is provided with a charging slot and a broadcasting hole respectively, said side plate is provided with a volume key slot and a power key slot on the surface of said side plate, and a camera window is provided on the upper part of the surface of said back plate;

A cell phone holding cavity is formed between said upper end plate, lower end plate and side plate, and an ink screen body is embedded in one side of said back plate and located in the interior of the cell phone holding cavity; 
a sealing plate is embedded in one side of said back plate and located in the front side of the ink screen body; and 
an NFC conduction assembly is mounted in the interior of said sealing plate, and said NFC conduction assembly is electrically coupled to one end of the ink screen body.

Preferably, an ink screen mounting slot is provided on the surface of said back plate and located inside the cell phone holding cavity, and said ink screen body is embedded in the interior of the ink screen mounting slot.
Preferably, said sealing plate is embedded in the interior of the ink screen mounting slot, and one side of said sealing plate is affixed to the surface of the ink screen body.
Preferably, the depth of said ink screen mounting slot is equal to the sum of the thicknesses of the sealing plate and the ink screen body, said sealing plate has a sealing strip mounted on the outer side of said sealing plate, said surface of said backing plate is provided with a sealing groove adapted to the sealing strip, and said sealing strip is disposed in the interior of the sealing groove.
Preferably, the thickness of said sealing plate is 1.5-2 times the depth of the sealing groove, the depth of said sealing groove is 1.5-2 times the thickness of the sealing strip, the inner cavity of said sealing groove and disposed on the outside of the sealing strip is filled with a layer of thermosolvent, and the sum of the thicknesses of said layer of thermosolvent and the sealing strip is less than or equal to the depth of the sealing groove.
Preferably, said sealing plate is provided with a holding groove on one side near the ink screen body, and said NFC conduction assembly is installed in the interior of the holding groove.
Preferably, said NFC conduction assembly comprises an NFC chip, said NFC chip is disposed in the interior of the holding slot, and two ends of said NFC chip are connected to a first flexible circuit board and a second flexible circuit board respectively.
Preferably, one end of said NFC chip is electrically connected to one end of the ink screen body through the first flexible circuit board, the other end of said NFC chip is connected to a contact terminal through the second flexible circuit board, said contact terminal is embedded in the interior of the sealing plate, and said end of said contact terminal away from the NFC chip extends to the exterior of the sealing plate.
Preferably, a raised block is mounted on the surface of said back plate and located inside the cell phone holding cavity, said raised block having the same thickness as that of the contact terminal extending to the outside of the sealing plate, said raised block being located on both sides of the camera window.
Preferably, a protective groove is provided on one side of said back plate away from the sealing plate, said protective groove is provided opposite to the body of the ink screen, the size of said protective groove is 1.2-1.3 times the size of the body of the ink screen, and the interior of said protective groove is coated with an antioxidant coating.

Compared with the prior art, the beneficial effects of the present invention are:

1, By setting the NFC conduction component, the present invention, the ink screen body can be used for the transmission of picture text through the NFC chip. It will not cause the cell phone to take power and affect the consumption of the cell phone battery, and it will not cause the bad experience feeling that the cell phone is hot because of the long time cell phone taking power, and at the same time, through the NFC transmission to the low-power ink screen, it makes the cell phone case always keep the sense of freshness and functionality stronger.
2, the invention uses NFC technology to combine the line of electricity and information transmission, the structure is optimized, and the NFC chip adopts wireless transmission technology, the structure is thin and light, occupies less space, avoids the use of the ink screen to the phone case to bring the thickness of the thick and the weight of the weight of the problem of the addition of the phone case, improves the convenience of use and the beauty of the phone case.
3, The anti-interference performance of the ink screen body and the NFC conduction component is improved by the setting of the thermosol layer and the sealing strip, and the wear and tear that occurs between the back plate and the contact can be reduced by the setting of the protective groove and the antioxidant coating, while the antioxidant coating can slow down the oxidation rate of the back plate and improve the service life of the cell phone case.

DESCRIPTION OF THE ATTACHED FIGURES 
FIG. 1 shows a schematic diagram of the structure of the present invention; 

FIG. 2 shows a schematic diagram of the three-dimensional structure of the cell phone case body of the present invention; 

FIG. 3 shows a localized main-view sectional view of the back panel of the present invention; 

FIG. 4 shows a partially enlarged schematic diagram of area A in FIG. 3 of the present invention 

FIG. 5 shows a partially enlarged schematic diagram of area B in FIG. 3 of the present invention.

In the figure: 1, a cell phone case body; 2, a back plate; 3, an upper end plate; 4, a lower end plate; 5, a side plate; 6, a voice hole; 7, a charging slot; 8, an announcing hole; 9, a volume key slot; 10, a power key slot; 11, a camera window; 12, an ink screen body; 13, a sealing plate; 14, an NFC conduction component; 15, a sealing strip; 16, a thermal solvent layer; 17, an accommodating slot; 18, an NFC chip; 19, a first flexible circuit board; 20, a second flexible circuit board; 21, a contact terminal; 22, a protruding block; 23, a protective slot; and 24, an antioxidant coating.

SPECIFIC EMBODIMENTS

The technical solutions in the embodiments of the present invention will be described clearly and completely in the following in connection with the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative labor fall within the scope of protection of the present invention.

Example 1 
Referring to FIGS. 1-5, the present invention provides a technical solution: an NFC-based smart ink screen cell phone case including a cell phone case body 1, the cell phone case body 1 including a back plate 2, an upper end plate 3, a lower end plate 4, and a side plate 5, the upper end plate 3 and the lower end plate 4 being mounted to the top and bottom ends of one side of the back plate 2, and the side plate 5 being mounted to the two sides of the back plate 2; a cell phone containment cavity is formed between the upper end plate 3, the lower end plate 4, and the side plate 5; the cell phone containment cavity is used to place the cell phone inside of the cell phone case body 1. the upper end plate 3, the lower end plate 4, and the side plate 5, a cell phone holding cavity is formed, and an ink screen body 12 is embedded on one side of the back plate 2 and in the interior of the cell phone holding cavity, and the cell phone holding cavity is used to place the cell phone in the interior of the cell phone case body 1.
Wherein, the material of the cell phone case body 1 may be made of transparent polyester material, the cell phone case body 1 made of the transparent polyester material has good plasticizability and weather resistance, and at the same time, the transparent material enables the display content of the ink screen body 12 to be displayed through the back plate 2.
The surface of the upper end plate 3 is provided with a voice hole 6, the surface of the lower end plate 4 is provided with a charging slot 7 and a broadcasting hole 8, the surface of the side plate 5 is provided with a volume key slot 9 and a power key slot 10, and the upper part of the surface of the back plate 2 is provided with a camera window 11; through the charging slot 7 and the broadcasting hole 8 and other above mentioned structures, they are used to fit into the structure of the cell phone, and it is convenient for the cell phone to carry on the normal use after the cell phone case body 1 is installed.
A sealing plate 13 is embedded in one side of the back plate 2 and located in the front side of the ink screen body 12, an ink screen mounting groove is provided on the surface of the back plate 2 and located in the interior of the cell phone housing cavity, the ink screen body 12 is embedded in the interior of the ink screen mounting groove; the sealing plate 13 is embedded in the interior of the ink screen mounting groove, and one side of the sealing plate 13 is adhered to the surface of the ink screen body 12, and the sealing plate 13 is set to confine the ink screen body 12 to the ink screen body 12, and the sealing plate 13 is set to fit the ink screen body 12 to the cell phone structure. body 12 within the ink screen mounting slot, preventing the ink screen body 12 from bending or deflecting.
The sealing plate 13 is internally mounted with the NFC conduction assembly 14, the NFC conduction assembly 14 is electrically connected to one end of the ink screen body 12, the sealing plate 13 is provided with an accommodation slot 17 on one side near the ink screen body 12, the NFC conduction assembly 14 is mounted in the interior of the accommodation slot 17, and by the provision of the accommodation slot 17, it is used for accommodating and mounting the NFC conduction assembly 14.
The NFC conduction assembly 14 includes an NFC chip 18, the NFC chip 18 is provided in the interior of the holding slot 17, and two ends of the NFC chip 18 are connected to a first flexible circuit board 19 and a second flexible circuit board 20, respectively. one end of the NFC chip 18 is electrically connected to one end of the ink screen body 12 through the first flexible circuit board 19, and the other end of the NFC chip 18 is connected to a contact terminal 21 through the second flexible circuit board 20 is connected with a contact terminal 21, the contact terminal 21 being embedded in the interior of the sealing plate 13, and the end of the contact terminal 21 away from the NFC chip 18 extending to the exterior of the sealing plate 13. The contact terminal 21 for facilitating contact with the cell phone and connecting with the NFC function of the cell phone.
Further, the NFC chip 18 has an NFC wireless transmission function, and the NFC information is transmitted by means of electromagnetic induction coupling in the wireless frequency portion of the spectrum, and the NFC adopts a unique signal attenuation technology, which has the characteristics of proximity, high bandwidth, and low energy consumption.
NFC cell phone has three functional modes: NFC cell phone as a reading device, NFC cell phone as a read device and point-to-point communication application between NFC cell phones, the above three functional modes can be connected and information interchange with NFC chip 18, ink screen body 12 through the NFC chip 18 can be used for the transmission of pictures and text. It will not cause the cell phone to take power and affect the consumption of the cell phone battery, and will not cause the cell phone to be hot because of the long time the cell phone to take power and cause the cell phone to be hot with a sense of bad experience.
The ink screen body 12 will display the pictures or text transmitted from the cell phone, and the pictures and text on the back of the cell phone case body 1 can be dressed up according to different moods, DIY a new picture of the cell phone case, or use the cell phone case as a memo of an important period, which can be transmitted to the low-power ink screen through NFC, so that the cell phone case always keeps a fresh sense of freshness and greater functionality.
At the same time, the technical solution in this embodiment adopts the NFC chip 18 to connect the ink screen body 12 with the cell phone and transmit information in a way that also has the following advantages, firstly, it will not take a long time to take points on the cell phone, which reduces the consumption of the cell phone's power, and secondly, it is not necessary to charge the ink screen body 12 individually, and it adopts the NFC technology to combine the lines of electricity consumption and information transmission, and it is optimized to the structure, and the NFC chip 18 is also used to transmit information to the mobile phone. Optimized, and the NFC chip 18 adopts wireless transmission technology, the structure is thin and light, occupies less space, avoids the use of the ink screen to the phone case to bring the problem of excessive thickness and weight increase, improves the convenience of use and the beauty of the phone case.

Example 2
Referring to FIGS. 2, 3, and 4, this Embodiment 2 differs from Embodiment 1 in that: 
the depth of the ink screen mounting groove is equal to the sum of the thicknesses of the sealing plate 13 and the ink screen body 12, the sealing strip 15 is mounted on the outer side of the sealing plate 13, and the sealing groove adapted to fit with the sealing strip 15 is opened on the surface of the back plate 2, and the sealing strip 15 is disposed in the interior of the sealing groove. By providing the sealing strip 15, it is used to cover the installation gap existing between the sealing plate 13 and the ink screen mounting slot to improve the sealing.
The thickness of the sealing plate 13 is 1.5-2 times the depth of the sealing groove, the depth of the sealing groove is 1.5-2 times the thickness of the sealing strip 15, the inner cavity of the sealing groove and disposed on the outside of the sealing strip 15 is filled with a thermosol layer 16, and the sum of the thicknesses of the thermosol layer 16 and the sealing strip 15 is less than or equal to the depth of the sealing groove. By using the thermosol layer 16 and the sealing strip 15 together, the ink screen mounting slot can be sealed to prevent outside air, moisture and dust from entering the ink screen mounting slot to interfere with the normal display of the ink screen body 12.
On the surface of the back plate 2 and in the interior of the cell phone housing cavity is mounted a protruding block 22, the thickness of the protruding block 22 is the same as the thickness of the contact terminals 21 extending to the exterior of the sealing plate 13, and the protruding blocks 22 are located on both sides of the camera window 11. By providing the raised blocks 22 for use with the contact terminals 21, the fit and stability of the cell phone installed in the cell phone case body 1 is improved.
A protective groove 23 is provided on one side of the back plate 2 away from the sealing plate 13, the protective groove 23 is provided opposite the ink screen body 12, the size of the protective groove 23 is 1.2-1.3 times the size of the ink screen body 12, and the interior of the protective groove 23 is coated with an antioxidant coating 24. By providing the protective groove 23 so that a portion of the interior of the protective groove 23 does not come into contact with the support surface when the cellular phone is placed therein, the occurrence of contact between the back plate 2 and the contact objects can be reduced. abrasion between the back plate 2 and the contact, and by providing the antioxidant coating 24, the oxidized back plate 2 will reduce the transparency and make the display of the ink screen body 12 not clear enough, and the antioxidant coating 24 can slow down the rate of oxidation of the back plate 2, and improve the service life of the cell phone case.
Although embodiments of the present invention have been shown and described, it can be understood to a person of ordinary skill in the art that a variety of changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the appended claims and their equivalents.