CN113412022B - External NFC coil for mobile phone shell - Google Patents

External NFC coil for mobile phone shell Download PDF

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Publication number
CN113412022B
CN113412022B CN202110883461.8A CN202110883461A CN113412022B CN 113412022 B CN113412022 B CN 113412022B CN 202110883461 A CN202110883461 A CN 202110883461A CN 113412022 B CN113412022 B CN 113412022B
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China
Prior art keywords
plate
fixedly connected
mobile phone
phone shell
shaped
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CN202110883461.8A
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Chinese (zh)
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CN113412022A (en
Inventor
韦进
周凯淦
刘华涛
韩振宇
黄烈云
王萃
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Shenzhen Sanji Technology Co ltd
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Shenzhen Sanji Technology Co ltd
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Priority to CN202110883461.8A priority Critical patent/CN113412022B/en
Publication of CN113412022A publication Critical patent/CN113412022A/en
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/14Mounting supporting structure in casing or on frame or rack
    • H05K7/1401Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
    • H05K7/1402Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards
    • H05K7/1404Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards by edge clamping, e.g. wedges
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/14Mounting supporting structure in casing or on frame or rack
    • H05K7/1401Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
    • H05K7/1402Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards

Abstract

The invention provides an external NFC coil for a mobile phone shell, which relates to the technical field of NFC coils and comprises a mobile phone shell and a fixing device, wherein two supporting plates are fixedly arranged inside the mobile phone shell, the two supporting plates are uniformly distributed on the surface of the mobile phone shell, the side, close to each other, of the two supporting plates is provided with the fixing device, the fixing device comprises a rectangular plate, the surface of the rectangular plate is rotatably connected with the two supporting plates, one side, close to the mobile phone shell, of the rectangular plate is rotatably connected with two U-shaped plates, the two U-shaped plates are uniformly distributed on the surface of the rectangular plate, the side, close to each other, of the two U-shaped plates is slidably connected with a circuit board, a lead is inserted into one side, away from the rectangular plate, of the circuit board, and one end, close to the supporting plates, of the U-shaped plates is fixedly connected with a buckle. The invention solves the problems that the installation of the NFC coil on the inner surface of the shell of the mobile phone is troublesome and is not easy to fix, and the normal use of the mobile phone on the NFC function is influenced.

Description

External NFC coil for mobile phone shell
Technical Field
The invention relates to the technical field of NFC coils, in particular to an external NFC coil for a mobile phone shell.
Background
NFC is also called near field communication, and is an emerging technology, and devices using the NFC technology can exchange data when they are close to each other, and is integrated and evolved from a non-contact radio frequency identification and interconnection technology, and by integrating functions of an induction card reader, an induction card, and point-to-point communication on a single chip, applications such as mobile payment, electronic ticketing, door access, mobile identity identification, and anti-counterfeiting are implemented using a mobile terminal.
In the field of mobile phone communication, the practicability of a mobile phone is usually increased by externally connecting an NFC coil inside a mobile phone shell, and due to the fact that the internal space of the mobile phone shell is limited, the NFC coil is mounted on the inner surface of the mobile phone shell in a troublesome mode and is not easy to fix, and therefore normal use of the mobile phone to an NFC function is affected.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an external NFC coil for a mobile phone shell.
In order to achieve the purpose, the invention adopts the following technical scheme: an external NFC coil for a mobile phone shell comprises a mobile phone shell and a fixing device, wherein two supporting plates are fixedly arranged inside the mobile phone shell, the two supporting plates are uniformly distributed on the surface of the mobile phone shell, the side, close to each other, of the two supporting plates is provided with the fixing device, the fixing device comprises a rectangular plate, the surface of the rectangular plate is rotatably connected with the two supporting plates, one side, close to the mobile phone shell, of the rectangular plate is rotatably connected with two U-shaped plates, the two U-shaped plates are uniformly distributed on the surface of the rectangular plate, the side, close to each other, of the two U-shaped plates is slidably connected with a circuit board, a lead is inserted into one side, away from the rectangular plate, of the circuit board, one end, close to the supporting plates, of each U-shaped plate is fixedly connected with a buckle, the buckle is U-shaped, one side, away from the buckle, of each U-shaped plate is fixedly connected with a cylinder, and the circular arc surface of the cylinder is slidably connected with the rectangular plate, cylindrical arc surface has been seted up two and has been accomodate the groove, two accomodate groove evenly distributed on the cylindrical surface, accomodate the first spring of the inner wall fixedly connected with in groove, the one end fixedly connected with fixture block of accomodating the groove is kept away from to first spring, the cylinder is with the help of two fixture blocks and rectangular plate looks joint, the one end sliding connection that the U-shaped board was kept away from to the cylinder has C shape elastic ring, cylindrical one end and rectangular plate fixed connection are kept away from to C shape elastic ring.
Preferably, the inside sliding connection of first spring has the gag lever post, the one end of gag lever post with accomodate groove fixed connection, the gag lever post is kept away from the one end and the fixture block sliding connection who accomodates inslot wall.
Preferably, two second springs are fixedly connected to one side, far away from the buckle, of the U-shaped plate, the second springs are evenly distributed on the surface of the U-shaped plate, one end, far away from the U-shaped plate, of the second springs is fixedly connected with a pressing plate, the pressing plate is close to two sliding rods, close to one side of the U-shaped plate, of the one side, the arc surfaces of the sliding rods are respectively connected with the two second springs in a sliding mode, and the two sliding rods are connected with the U-shaped plate in a sliding mode, and one ends, far away from the pressing plate, of the sliding rods are connected with the U-shaped plate in a sliding mode.
Preferably, one end of each of the two sliding rods, which is far away from the U-shaped plate, is fixedly connected with a handle, and the handles are U-shaped.
Preferably, the surface of rectangular plate is equipped with stop device, stop device includes the circular arc board, the surface and the rectangular plate fixed connection of circular arc board, the rectangular hole has been seted up on the surface of circular arc board, the inside of rectangular hole is inserted and is equipped with the bracing piece, the one end and the cell-phone shell fixed connection of rectangular hole are kept away from to the bracing piece, the one end that the cell-phone shell was kept away from to the bracing piece is rotated and is connected with the cardboard, one side that the cardboard is close to the bracing piece contacts with the circular arc board, one side card that the bracing piece was kept away from to the cardboard has the briquetting, one side fixedly connected with third spring of cardboard is kept away from to the briquetting, the one end fixedly connected with support frame of briquetting is kept away from to the third spring, the support frame is "U" shape, the surface and the circular arc board fixed connection of support frame.
Preferably, one side of the pressing block, which is far away from the clamping plate, is fixedly connected with a pull rod, and one end, which is far away from the pressing block, of the pull rod is connected with the support frame in a sliding manner.
Preferably, the surface of circuit board is equipped with two protector, two protector evenly distributed is on the surface of circuit board, protector includes the fixed plate, the surface and the circuit board fixed connection of fixed plate, one side fixed connection elastic cloth of circuit board is kept away from to the fixed plate, the one end fixedly connected with couple of fixed plate is kept away from to elastic cloth, the one end sliding connection who keeps away from elastic cloth of couple has the L shaped plate, the one end and the circuit board fixed connection of couple are kept away from to the L shaped plate.
Preferably, the rectangular plate is close to the solid fixed ring of one side fixedly connected with of cell-phone shell, gu fixed ring's inner wall and wire sliding connection, one side sliding connection that the rectangular plate was kept away from to the wire has the stock, the both ends of stock are all rotated and are connected with the fixed block, two the surface of fixed block all with cell-phone shell fixed connection, the one end fixedly connected with turning block of stock, and the arc surface of turning block rotates with the fixed block to be connected.
Compared with the prior art, the invention has the advantages and positive effects that,
1. according to the invention, through arranging the fixing device, when a circuit board with an NFC coil needs to be installed on the mobile phone shell, the rectangular plate is firstly turned over, then the two U-shaped plates are rotated in the direction away from each other, at the moment, the handle is pulled to drive the pressing plate to move in the direction close to the U-shaped plates, then the circuit board is clamped in the buckles of the U-shaped plates, the two clamping blocks on the cylinder are pressed to slide into the cylindrical accommodating grooves, then the handle is loosened, at the moment, the pressing plate starts to be pressed by the pressing plate due to the elastic force of the second spring, the circuit board presses the U-shaped plates to rotate under the pressure of the pressing plate, when the U-shaped plates drive the cylinder to move into the clamping holes of the rectangular plate, the two clamping blocks are loosened, at the moment, the two clamping blocks are moved in the direction away from each other due to the elastic force of the first spring, at the moment, the cylinder is clamped on the rectangular plate by the two clamping blocks, then go into the cylinder card again in C shape elastic ring to reached and installed the effect on the rectangular plate with the circuit board, wherein the gag lever post has played the effect of restriction first spring elasticity direction and then restriction fixture block shift position, C shape elastic ring has reached further fixed cylindrical effect, and then has reached and fix the circuit board at the inside effect of cell-phone shell, it is comparatively troublesome to have solved at cell phone case internal surface mounting NFC coil, and be difficult to fix, influence the cell-phone to the problem of NFC function normal use.
2. In the invention, by arranging the limiting device, after the circuit board with the NFC coil is arranged on the rectangular plate by using the fixing device, the clamping plate on the supporting rod is rotated to ensure that the position of the clamping plate is matched with the position of the rectangular hole on the arc plate, the pull rod is pulled to ensure that the pull rod drives the pressing block to move towards the direction close to the supporting frame, then the rectangular plate is rotated to be buckled on the surface of the supporting rod by the rectangular hole, then the clamping plate is rotated to be rotated by ninety degrees, then the pressing block is loosened, and the pressing block is clamped into the surface of the clamping plate under the elasticity of the third spring, thereby achieving the effect of fixing the position of the clamping plate, and then reached the effect with the rigidity of rectangular plate, solved the inconvenient fixed in rectangular plate position, do not fix and can lead to the problem that bumps between circuit board and the cell-phone shell and reduce circuit board life.
3. According to the invention, through arranging the protective device, when the wire of the circuit board is required to be externally connected to the mobile phone mainboard, the hook is firstly pulled out of the L-shaped plate, then the wire is placed on the surface of the elastic cloth close to the mobile phone shell, then the rotating block is rotated to drive the long rod to rotate, the long rod and the wire slide, then the wire is pulled out of the other end of the long rod and connected to the mobile phone mainboard, then the hook is pulled to be hung on the L-shaped plate again, at the moment, the elastic cloth can tighten the two ends of the wire, so that the effect of enhancing the connection stability between the wire and the circuit board is achieved, when the wire is pulled to be connected to the mobile phone mainboard, the long rod plays a role of adjusting the wire joint direction, and the problem that the wire connected to an NFC coil is broken due to excessive disassembling force when the mobile phone shell is disassembled is solved.
Drawings
Fig. 1 is a schematic perspective view of an external NFC coil for a mobile phone case according to the present invention;
fig. 2 is a schematic structural diagram of an external NFC coil for a mobile phone case at another angle according to the present invention;
fig. 3 is a schematic structural diagram of a part of an external NFC coil fixing device for a mobile phone case according to the present invention;
fig. 4 is a schematic diagram of an internal structure of an external NFC coil cylinder for a mobile phone case according to the present invention;
fig. 5 is a schematic diagram of a local structure of an external NFC coil for a mobile phone case according to the present invention;
fig. 6 is a schematic structural diagram of another angle of a rectangular plate externally connected with an NFC coil for a mobile phone case according to the present invention;
fig. 7 is a schematic structural diagram of a portion a of an external NFC coil fig. 2 for a mobile phone case according to the present invention;
fig. 8 is a schematic structural diagram of a part of an external NFC coil protection device for a mobile phone case according to the present invention.
Illustration of the drawings: 1. a handset housing; 2. a support plate; 3. a fixing device; 301. a rectangular plate; 302. a U-shaped plate; 303. buckling; 304. a cylinder; 305. a receiving groove; 306. a first spring; 307. a clamping block; 308. a limiting rod; 309. a second spring; 310. pressing a plate; 311. a slide bar; 312. a handle; 313. a C-shaped elastic ring; 4. a limiting device; 41. a circular arc plate; 42. a rectangular hole; 43. a support bar; 44. clamping a plate; 45. briquetting; 46. a third spring; 47. a support frame; 48. a pull rod; 5. a guard; 51. a fixing plate; 52. an elastic cloth; 53. hooking; 54. an L-shaped plate; 55. a long rod; 56. a fixed block; 57. rotating the block; 58. a fixing ring; 6. a circuit board; 7. and (4) conducting wires.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
Embodiment 1, as shown in fig. 1 to 8, the invention provides an external NFC coil for a mobile phone shell, which includes a mobile phone shell 1 and a fixing device 3, two supporting plates 2 are fixedly installed inside the mobile phone shell 1, the two supporting plates 2 are uniformly distributed on the surface of the mobile phone shell 1, the fixing device 3 is installed on one side of the two supporting plates 2 close to each other, a limiting device 4 is installed on the surface of a rectangular plate 301, and two protective devices 5 are installed on the surface of a circuit board 6.
The specific arrangement and function of the fixing means 3, the limiting means 4 and the protecting means 5 will be described in detail below.
As shown in fig. 1-5, two support plates 2 are fixedly mounted inside the mobile phone case 1, the two support plates 2 are uniformly distributed on the surface of the mobile phone case 1, one side of the two support plates 2 close to each other is provided with a fixing device 3, the fixing device 3 comprises a rectangular plate 301, the surface of the rectangular plate 301 is rotatably connected with the two support plates 2, one side of the rectangular plate 301 close to the mobile phone case 1 is rotatably connected with two U-shaped plates 302, the two U-shaped plates 302 are uniformly distributed on the surface of the rectangular plate 301, one side of the two U-shaped plates 302 close to each other is slidably connected with a circuit board 6, one side of the circuit board 6 far from the rectangular plate 301 is inserted with a lead 7, one end of the U-shaped plates 302 close to the support plates 2 is fixedly connected with a buckle 303, the buckle 303 is in a "U" shape, one side of the U-shaped plates 302 far from the buckle is fixedly connected with a cylinder 304, the cylinder 304 is further clamped into a C-shaped elastic ring 313, thereby achieving the effect of mounting the circuit board 6 on the rectangular plate 301, the arc surface of the cylinder 304 is connected with the rectangular plate 301 in a sliding manner, the arc surface of the cylinder 304 is provided with two accommodating grooves 305, the two accommodating grooves 305 are uniformly distributed on the surface of the cylinder 304, the inner wall of the accommodating groove 305 is fixedly connected with a first spring 306, one end of the first spring 306 far away from the accommodating groove 305 is fixedly connected with a clamping block 307, the cylinder 304 is clamped with the rectangular plate 301 by means of the two clamping blocks 307, one end of the cylinder 304 far away from the U-shaped plate 302 is connected with a C-shaped elastic ring 313 in a sliding manner, one end of the C-shaped elastic ring 313 far away from the cylinder 304 is fixedly connected with the rectangular plate 301, the inner part of the first spring 306 is connected with a limiting rod 308 in a sliding manner, one end of the limiting rod 308 is fixedly connected with the accommodating groove 305, one end of the limiting rod 308 far away from the inner wall of the accommodating groove 305 is connected with the clamping block 307 in a sliding manner, one side of the U-shaped plate 302 far away from the clamping block 303 is fixedly connected with two second springs 309, and the two second springs 309 are uniformly distributed on the surface of the U-shaped plate 302, one end fixedly connected with clamp plate 310 that U-shaped board 302 was kept away from to second spring 309, one side fixedly connected with two slide bars 311 that clamp plate 310 is close to U-shaped board 302, the arc surface of two slide bars 311 respectively with two second springs 309 sliding connection, the one end that clamp plate 310 was kept away from to two slide bars 311 all with U-shaped board 302 sliding connection, the one end fixedly connected with handle 312 that U-shaped board 302 was kept away from to two slide bars 311, handle 312 is "U" shape.
The whole fixing device 3 achieves the effect that by arranging the fixing device 3, when the circuit board 6 with the NFC coil needs to be installed on the mobile phone shell 1, the rectangular plate 301 is firstly opened, then the two U-shaped plates 302 are rotated in the direction away from each other, at this time, the handle 312 is pulled, the handle 312 drives the pressing plate 310 to move in the direction close to the U-shaped plates 302, then the circuit board 6 is clamped into the buckle 303 of the U-shaped plates 302, the two clamping blocks 307 on the cylinder 304 are pressed, the two clamping blocks 307 slide into the accommodating groove 305 of the cylinder 304, then the handle 312 is released, at this time, the second spring 309 gives an elastic force to the pressing plate 310, the pressing plate 310 starts to press the circuit board 6, the circuit board 6 presses the U-shaped plates 302 to rotate under the pressure of the pressing plate 310, when the cylinder 304 is driven by the U-shaped plates 302 to move into the clamping hole of the rectangular plate 301, the two clamping blocks 307 are released, at this time, the two clamping blocks 307 are moved in the direction away from each other by the elastic force of the first spring 306, at this moment, the cylinder 304 is clamped on the rectangular plate 301 by means of the two clamping blocks 307, then the cylinder 304 is clamped in the C-shaped elastic ring 313, so that an effect of installing the circuit board 6 on the rectangular plate 301 is achieved, wherein the limiting rod 308 plays a role in limiting the elastic direction of the first spring 306 and further limiting the moving position of the clamping block 307, the C-shaped elastic ring 313 achieves an effect of further fixing the cylinder 304, further an effect of fixing the circuit board 6 inside the mobile phone shell 1 is achieved, the problem that an NFC coil is installed on the inner surface of the mobile phone shell is troublesome is solved, the fixing is not easy, and the problem of normal use of the NFC function of the mobile phone is influenced.
As shown in fig. 6 and 7, a limiting device 4 is disposed on a surface of the rectangular plate 301, the limiting device 4 includes an arc plate 41, a surface of the arc plate 41 is fixedly connected to the rectangular plate 301, a rectangular hole 42 is formed on a surface of the arc plate 41, a supporting rod 43 is inserted into the rectangular hole 42, one end of the supporting rod 43 away from the rectangular hole 42 is fixedly connected to the mobile phone shell 1, one end of the supporting rod 43 away from the mobile phone shell 1 is rotatably connected to a clamping plate 44, one side of the clamping plate 44 close to the supporting rod 43 contacts the arc plate 41, one side of the clamping plate 44 away from the supporting rod 43 is clamped with a pressing block 45, the pressing block 45 is clamped into a surface of the clamping plate 44 by an elastic force of a third spring 46, so as to achieve an effect of fixing a position of the clamping plate 44, one side of the pressing block 45 away from the clamping plate 44 is fixedly connected to the third spring 46, one end of the third spring 46 away from the pressing block 45 is fixedly connected to a supporting frame 47, the support frame 47 is U-shaped, the surface of the support frame 47 is fixedly connected with the arc plate 41, one side of the press block 45, which is far away from the clamping plate 44, is fixedly connected with a pull rod 48, and one end of the pull rod 48, which is far away from the press block 45, is slidably connected with the support frame 47.
The whole limiting device 4 achieves the effect that by arranging the limiting device 4, after the fixing device 3 is used for installing the circuit board 6 with the NFC coil on the rectangular plate 301, the clamping plate 44 on the supporting rod 43 is rotated to enable the position of the clamping plate 44 to be matched with the position of the rectangular hole 42 on the arc plate 41, the pull rod 48 is pulled to enable the pull rod 48 to drive the pressing block 45 to move towards the direction close to the supporting frame 47, then the rectangular plate 301 is rotated to enable the rectangular plate 301 to be buckled on the surface of the supporting rod 43 by means of the rectangular hole 42, then the clamping plate 44 is rotated to enable the clamping plate 44 to rotate ninety degrees, then the pressing block 45 is loosened, at the moment, the pressing block 45 is clamped on the surface of the clamping plate 44 by the elastic force of the third spring 46, so that the effect of fixing the position of the clamping plate 44 is achieved, the effect of fixing the position of the rectangular plate 301 is achieved, and the problem that the position of the rectangular plate 301 is inconvenient to fix is solved, the lack of fixation causes a problem that the collision between the circuit board 6 and the cellular phone case 1 lowers the service life of the circuit board 6.
As shown in fig. 6 and 8, two protection devices 5 are disposed on the surface of the circuit board 6, the two protection devices 5 are uniformly distributed on the surface of the circuit board 6, each protection device 5 includes a fixing plate 51, the surface of the fixing plate 51 is fixedly connected to the circuit board 6, one side of the fixing plate 51 away from the circuit board 6 is fixedly connected to an elastic cloth 52, the elastic cloth 52 can tighten both ends of the wire 7, thereby achieving the effect of enhancing the connection stability between the wire 7 and the circuit board 6, when the wire 7 is pulled and connected to the main board of the mobile phone, the long rod 55 plays the role of adjusting the joint direction of the wire 7, one end of the elastic cloth 52 away from the fixing plate 51 is fixedly connected to a hook 53, one end of the hook 53 away from the elastic cloth 52 is slidably connected to an L-shaped plate 54, one end of the L-shaped plate 54 away from the hook 53 is fixedly connected to the circuit board 6, one side of the rectangular plate 301 close to the mobile phone shell 1 is fixedly connected to a fixing ring 58, the inner wall of solid fixed ring 58 and wire 7 sliding connection, one side sliding connection that rectangular plate 301 was kept away from to wire 7 has stock 55, and stock 55's both ends are all rotated and are connected with fixed block 56, and two fixed block 56's surface all with cell-phone shell 1 fixed connection, stock 55's one end fixedly connected with turning block 57, and turning block 57's arc surface rotates with fixed block 56 and is connected.
The whole protection device 5 achieves the effect that by arranging the protection device 5, when the lead 7 of the circuit board 6 needs to be externally connected to the mainboard of the mobile phone, the hook 53 is firstly drawn out from the L-shaped plate 54, then the lead 7 is placed on the surface of the elastic cloth 52 close to the mobile phone shell 1, then the rotating block 57 is rotated, the rotating block 57 drives the long rod 55 to rotate, the long rod 55 and the lead 7 slide, then the lead 7 is drawn out from the other end of the long rod 55 and connected to the mainboard of the mobile phone, then the hook 53 is pulled to hang the hook 53 on the L-shaped plate 54 again, at the moment, the elastic cloth 52 can tighten the two ends of the lead 7, thereby achieving the effect of enhancing the connection stability between the lead 7 and the circuit board 6, when the lead 7 is pulled and connected to the mainboard of the mobile phone, the long rod 55 plays the effect of adjusting the joint direction of the lead 7, and solving the problem that when the mobile phone shell 1 is disassembled, too much detachment force may cause a problem that the wire 7 connected to the NFC coil is broken.
Embodiment 2, on the basis of embodiment 1, two protection devices 5 are uniformly distributed on the surface of a circuit board 6, each protection device 5 includes a fixing plate 51, the surface of the fixing plate 51 is fixedly connected with the circuit board 6, one side of the fixing plate 51 far away from the circuit board 6 is fixedly connected with an elastic cloth 52, the elastic cloth 52 can tighten two ends of a wire 7, thereby achieving the effect of enhancing the connection stability between the wire 7 and the circuit board 6, when the wire 7 is pulled and connected to a main board of a mobile phone, a long rod 55 plays a role of adjusting the joint direction of the wire 7, one end of the elastic cloth 52 far away from the fixing plate 51 is fixedly connected with a hook 53, one end of the hook 53 far away from the elastic cloth 52 is slidably connected with an L-shaped plate 54, one end of the L-shaped plate 54 far away from the hook 53 is fixedly connected with the circuit board 6, one side of the rectangular plate 301 near to the mobile phone shell 1 is fixedly connected with a fixing ring 58, the inner wall of the fixing ring 58 is slidably connected with the wire 7, one side of the wire 7 far away from the rectangular plate 301 is connected with a long rod 55 in a sliding manner, two ends of the long rod 55 are connected with fixed blocks 56 in a rotating manner, the surfaces of the two fixed blocks 56 are fixedly connected with the mobile phone shell 1, one end of the long rod 55 is fixedly connected with a rotating block 57, and the arc surface of the rotating block 57 is connected with the fixed blocks 56 in a rotating manner, when the wire 7 of the circuit board 6 needs to be externally connected to a mobile phone mainboard, the hook 53 is firstly drawn out from the L-shaped plate 54, then the wire 7 is placed on the surface of the elastic cloth 52 close to the mobile phone shell 1, then the rotating block 57 is rotated to drive the long rod 55 to rotate, the long rod 55 slides with the wire 7, then the wire 7 is drawn out from the other end of the long rod 55 and is connected to the mobile phone mainboard, then the hook 53 is pulled to be hung on the L-shaped plate 54 again, at the moment, the two ends of the wire 7 are tightened by the elastic cloth 52, thereby achieving the effect of strengthening the connection stability between the wire 7 and the circuit board 6, when the lead 7 is pulled to be connected to the main board of the mobile phone, the long rod 55 has the effect of adjusting the direction of the joint of the lead 7.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims (4)

1. The utility model provides a cell phone case is with external NFC coil, includes cell-phone shell (1) and fixing device (3), its characterized in that: the mobile phone shell is characterized in that two supporting plates (2) are fixedly arranged in the mobile phone shell (1), the two supporting plates (2) are uniformly distributed on the surface of the mobile phone shell (1), the two supporting plates (2) are provided with fixing devices (3) at one side close to each other, each fixing device (3) comprises a rectangular plate (301), the surface of each rectangular plate (301) is rotatably connected with the two supporting plates (2), one side of each rectangular plate (301) close to the mobile phone shell (1) is rotatably connected with two U-shaped plates (302), the two U-shaped plates (302) are uniformly distributed on the surface of each rectangular plate (301), one sides of the two U-shaped plates (302) close to each other are slidably connected with a circuit board (6), one side of the circuit board (6) far away from the rectangular plate (301) is inserted with a wire (7), one end of each U-shaped plate (302) close to the supporting plates (2) is fixedly connected with a buckle (303), buckle (303) are "U" shape, one side fixedly connected with cylinder (304) of buckle (303) are kept away from to U shaped plate (302), the arc surface and rectangular plate (301) sliding connection of cylinder (304), two holding groove (305) have been seted up to the arc surface of cylinder (304), two holding groove (305) evenly distributed is on the surface of cylinder (304), the inner wall fixedly connected with first spring (306) of holding groove (305), the one end fixedly connected with fixture block (307) of holding groove (305) is kept away from to first spring (306), cylinder (304) are in the same joint with rectangular plate (301) with the help of two fixture blocks (307), the one end sliding connection that U shaped plate (302) were kept away from to cylinder (304) has C shape elastic ring (313), the one end and rectangular plate (301) fixed connection that cylinder (304) were kept away from to C shape elastic ring (313), the U-shaped plate (302) is far away from one side of the buckle (303) and is fixedly connected with two second springs (309), the second springs (309) are uniformly distributed on the surface of the U-shaped plate (302), one end of the U-shaped plate (302) is far away from the second springs (309) is fixedly connected with a pressing plate (310), one side of the pressing plate (310) close to the U-shaped plate (302) is fixedly connected with two sliding rods (311), the arc surfaces of the two sliding rods (311) are respectively in sliding connection with the two second springs (309), one end of the sliding rod (311) far away from the pressing plate (310) is both in sliding connection with the U-shaped plate (302), one end of the sliding rod (311) far away from the U-shaped plate (302) is fixedly connected with a handle (312), the handle (312) is in a U shape, the surface of the rectangular plate (301) is provided with a limiting device (4), and the limiting device (4) comprises an arc plate (41), the surface of the arc plate (41) is fixedly connected with the rectangular plate (301), the surface of the arc plate (41) is provided with a rectangular hole (42), the inner wall of the rectangular hole (42) is connected with a support rod (43) in a sliding manner, one end of the support rod (43) far away from the rectangular hole (42) is fixedly connected with the mobile phone shell (1), one end of the support rod (43) far away from the mobile phone shell (1) is rotatably connected with a clamping plate (44), one side of the clamping plate (44) close to the support rod (43) is contacted with the arc plate (41), one side of the clamping plate (44) far away from the support rod (43) is clamped with a pressing block (45), one side of the pressing block (45) far away from the clamping plate (44) is fixedly connected with a third spring (46), one end of the third spring (46) far away from the pressing block (45) is fixedly connected with a support frame (47), and the support frame (47) is U-shaped, the surface of the support frame (47) is fixedly connected with the arc plate (41), one side of the pressing block (45) far away from the clamping plate (44) is fixedly connected with a pull rod (48), and one end of the pull rod (48) far away from the pressing block (45) is connected with the support frame (47) in a sliding mode.
2. The external NFC coil for the mobile phone shell according to claim 1, wherein: the inside sliding connection of first spring (306) has gag lever post (308), the one end and the groove of accomodating (305) fixed connection of gag lever post (308), the one end and fixture block (307) sliding connection of accomodating the groove (305) inner wall are kept away from to gag lever post (308).
3. The external NFC coil for the mobile phone shell according to claim 1, wherein: the surface of circuit board (6) is equipped with two protector (5), two protector (5) evenly distributed is on the surface of circuit board (6), protector (5) are including fixed plate (51), the surface and circuit board (6) fixed connection of fixed plate (51), one side fixed connection elastic cloth (52) of circuit board (6) are kept away from in fixed plate (51), the one end fixedly connected with couple (53) of fixed plate (51) are kept away from in elastic cloth (52), the one end sliding connection that elastic cloth (52) were kept away from in couple (53) has L shaped plate (54), the one end and circuit board (6) fixed connection of couple (53) are kept away from in L shaped plate (54).
4. The external NFC coil for the mobile phone shell according to claim 1, wherein: the utility model discloses a cell-phone shell, including rectangular plate (301), wire (7), rectangular plate (301) are close to the solid fixed ring (58) of one side fixedly connected with of cell-phone shell (1), the inner wall and the wire (7) sliding connection of solid fixed ring (58), one side sliding connection that rectangular plate (301) were kept away from in wire (7) has stock (55), the both ends of stock (55) are all rotated and are connected with fixed block (56), two the surface of fixed block (56) all with cell-phone shell (1) fixed connection, the one end fixedly connected with turning block (57) of stock (55), and the arc surface of turning block (57) rotates with fixed block (56) and is connected.
CN202110883461.8A 2021-08-03 2021-08-03 External NFC coil for mobile phone shell Active CN113412022B (en)

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CN112399702A (en) * 2019-11-18 2021-02-23 深圳市凯合达智能设备有限公司 Anti-breaking method of special printed circuit board capable of preventing breaking
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