CN216877832U

CN216877832U - NFC button

Info

Publication number: CN216877832U
Application number: CN202122478571.4U
Authority: CN
Inventors: 应宏
Original assignee: Hangzhou Chaohu Intelligent Technology Co ltd
Current assignee: Hangzhou Chaohu Intelligent Technology Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-07-05
Anticipated expiration: 2031-10-14

Abstract

The utility model discloses an NFC (near field communication) key, which comprises an upper shell, a main shell, a base, a radio frequency identification module and a PCB (printed circuit board), wherein the upper shell is arranged above the main shell; the radio frequency identification module part is arranged in the middle of the base, and the rest part of the radio frequency identification module is arranged at the peripheral position of the PCB setting base; the NFC key is flexible to use, quick to trigger and capable of being controlled by NFC.

Description

NFC button

Technical Field

The utility model relates to the technical field of radio frequency identification, in particular to an NFC key.

Background

Electronic building blocks in the prior art are formed by fixing electronic components such as conducting wires, bulbs, diodes, resistors, capacitors, various switches, electric meters, motors, loudspeakers, integrated blocks and the like on a plastic sheet (block), making independent and assembled accessories by using unique snap fasteners, and assembling circuit combinations on a mounting bottom plate configured by a product like building blocks.

The electronic elements of the existing electronic building blocks are mostly in naked design, so that the electronic building blocks are more intuitive to learn, and the assembled electronic device can be applied to real life, can be used as an extraclass activity teaching material for primary and middle school students, and can also be used as an experiment guide of an electronic technology. The electronic building blocks are from shallow to deep, various interesting circuits and practical circuits can be assembled quickly, and sound, light and electricity effects generated by building block circuits assembled by the electronic building blocks can be heard or seen immediately when one circuit is assembled. The principle of original boring electricity, acoustics, optics and magnetism in the textbook can be easily understood and clarified in assembly and disassembly by children, and the children enter an wonderful and endless electronic world.

In the method, how to identify the corresponding electronic building blocks is controlled, and the corresponding common short-range radio frequency identification technology NFC is designed, so that the problem that enterprises need to think is one of the problems. Triggering NFC in real time is a conventional way added to the technology, and in order to save energy more effectively, triggering NFC by using keys becomes one of solutions, and how to design corresponding keys becomes one of directions.

SUMMERY OF THE UTILITY MODEL

The NFC key overcomes the defects of the prior art, is flexible to use, is quick to trigger, and can be controlled by activating NFC.

The technical scheme of the utility model is as follows:

an NFC key comprises an upper shell, a main shell, a base, a radio frequency identification module and a PCB, wherein the upper shell is arranged above the main shell, the base is positioned below the main shell and fixed on the PCB, and a corresponding reset structure is arranged below the upper shell; the radio frequency identification module part is arranged in the middle of the base, and the rest part of the radio frequency identification module is arranged at the peripheral position of the PCB arranged with the base.

Further, the whole octagon cylinder that is of main casing body, and the main casing body sets up inside convex spacing boss near the limit that extends of last casing, goes up the limit that extends that the casing is close to main casing body one side and sets up outside convex stopper.

Furthermore, rectangular notches are arranged in the middle of one pair of opposite two sides of the main shell, and chamfered trapezoidal notches are arranged in the middle of the other pair of opposite two sides.

Furthermore, the middle position of the trapezoid notch is provided with a deepened notch, and the upper shell is provided with a corresponding elongated bump corresponding to the deepened notch.

Furthermore, a placing groove is formed in one side, close to the base, of the main shell; the base is rectangular as a whole, and the width of the base is adapted to the arrangement groove; the two ends of the base are provided with baffles for limiting the outer side of the main shell.

Furthermore, inclined convex plates are distributed on the long edges of the two sides of the base and are in contact with the arrangement grooves of the main shell.

Furthermore, a part of radio frequency identification modules are arranged in the middle of the base, and corresponding through holes are formed in the middle of the base, so that the part of radio frequency identification modules are communicated with the PCB.

Further, the radio frequency identification module comprises a radio frequency identification chip, an induction coil, a capacitor and a resistor; a capacitor C11 is connected between No. 3 and No. 4 pins of the radio frequency identification chip, one end of a capacitor C11 is connected with one end of a capacitor C8 and one end of an induction coil, the other end of the capacitor C8 is grounded, the other end of the induction coil is connected with the other end of a capacitor C11 and one end of a capacitor C13, and the other end of the capacitor C13 is grounded; the DPO, SCL and SDA pins of the radio frequency identification chip are respectively connected with one ends of a resistor R3, a resistor R4 and a resistor R5, the other ends of the resistor R3, the resistor R4 and the resistor R5 are connected with VCC, the VCC pin of the radio frequency identification chip and one end of a capacitor C5 are connected with VCC together, and the other end of the capacitor C5 is grounded;

pins

0 and 4 of the radio frequency identification chip are grounded;

wherein the DPO, SCL and SDA pins of the radio frequency identification chip are also connected with the PCB.

Compared with the prior art, the utility model has the advantages that:

the utility model has flexible use and quick triggering and activates the NFC controllable high-efficiency button. The radio frequency identification module is integrally split, so that the radio frequency identification module is beneficial to subsequent maintenance and replacement, and has an effective protection effect on the radio frequency identification module. The upper shell and the main shell are arranged correspondingly, so that the upper shell can be better arranged in the main shell to move. The key is fixed better by arranging an exquisite fixed connection structure between the main shell and the base. The NFC radio frequency identification module designed by the utility model achieves both real-time monitoring and controllable monitoring, is very stable in information acquisition and is extremely low in power consumption.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the main housing of the present invention;

FIG. 3 is a schematic view of the main housing of the present invention from another perspective;

FIG. 4 is a perspective view of the main housing of the present invention;

FIG. 5 is a schematic view of the upper housing of the present invention;

FIG. 6 is a schematic view of the upper housing of the present invention from another perspective;

FIG. 7 is a schematic view of a base of the present invention;

FIG. 8 is a schematic view of another perspective of the base of the present invention;

fig. 9 is a schematic circuit diagram of a part of the NFC rfid module of the present invention.

The labels in the figure are: go up casing 1, stopper 11, rectangular shape lug 12, resettlement groove 13, main casing body 2, spacing boss 21, rectangle breach 22, trapezoidal form breach 23, deepened notch 24, base 3, baffle 31, flange 32, radio frequency identification module 4 and PCB board 5.

Detailed Description

The utility model is further described with reference to the following figures and detailed description. The parts not described in detail herein can be implemented by conventional technical means, and are not described in detail herein.

As shown in fig. 1 to 9, an NFC key includes an upper housing 1, a main housing 2, a base 3, a radio frequency identification module 4, and a PCB 5, where the upper housing 1 is disposed above the main housing 2, the base 3 is located below the main housing 2 and fixed on the PCB 5, and a corresponding reset structure (e.g., a spring, not shown) is disposed below the upper housing 1; the part of the radio frequency identification module 4 is arranged in the middle of the base 3, and the rest part of the radio frequency identification module 4 is arranged at the peripheral position of the PCB 5 arranged on the base 3. This arrangement allows the whole to be disassembled, facilitates subsequent maintenance and replacement, and provides effective protection for the radio frequency identification module 4.

Specifically, the whole octagon cylinder that is of main casing body 2, and main casing body 2 sets up inside convex spacing boss 21 near the limit that prolongs of main casing body 1, goes up the limit that prolongs that casing body 1 is close to main casing body 2 one side and sets up outside convex stopper 11, makes the restriction of last casing body 1 remove in main casing body 2.

The main housing 2 has a rectangular notch 22 at the middle of one pair of opposite sides and a chamfered trapezoidal notch 23 at the middle of the other pair of opposite sides, so that the upper housing 1 can be conveniently placed in the main housing 2.

The intermediate position of trapezoidal form breach 23 sets up deepening notch 24, goes up casing 1 and sets up corresponding rectangular shape lug 12 corresponding to deepening notch 24, and the better casing 1 of going on settles in main casing body 2, and the installation of being convenient for, and goes up casing 1 and be difficult for deviating from.

A placing groove 13 is arranged on one side of the main shell 2 close to the base 3; the base 3 is rectangular as a whole, and the width of the base is adapted to the arrangement groove 13; the base 3 is provided at both ends with a stopper 31 that restricts the outside of the main casing 2. The whole key is effectively fixed.

The both sides long edge of base 3 distributes and sets up the flange 32 of slope, and flange 32 and main casing body 2's arrangement groove 13 contact, fixes corresponding base 3 and main casing body 2 through to flange 32 micro deformation.

A part of radio frequency identification module 4 is arranged in the middle of the base 3, and a corresponding through hole is arranged in the middle of the base 3, so that the part of radio frequency identification module 4 is communicated with the PCB 5. The specific radio frequency identification module 4 comprises a radio frequency identification chip, an induction coil, a capacitor and a resistor; a capacitor C11 is connected between No. 3 and No. 4 pins of the radio frequency identification chip, one end of a capacitor C11 is connected with one end of a capacitor C8 and one end of an induction coil, the other end of the capacitor C8 is grounded, the other end of the induction coil is connected with the other end of a capacitor C11 and one end of a capacitor C13, and the other end of the capacitor C13 is grounded; the DPO, SCL and SDA pins of the radio frequency identification chip are respectively connected with one ends of a resistor R3, a resistor R4 and a resistor R5, the other ends of the resistor R3, the resistor R4 and the resistor R5 are connected with VCC, the VCC pin of the radio frequency identification chip and one end of a capacitor C5 are connected with VCC together, and the other end of the capacitor C5 is grounded;

pins

0 and 4 of the radio frequency identification chip are grounded;

wherein the DPO, SCL, SDA pins of the rfid chip are also connected to the PCB board 5. The rfid module 4 can wait for the information of the corresponding NFC tag in real time. Better waiting for reading the corresponding information. Naturally, a corresponding start button can be arranged and triggered by the movement and reset of the upper shell 1, so that energy can be better saved.

The foregoing is only a preferred embodiment of the present invention, and the details thereof are not described in detail and can be implemented by conventional techniques. Naturally, it should be noted that, for a person skilled in the art, several modifications and refinements can be made without departing from the inventive concept, and these modifications and refinements should also be considered as within the protective scope of the present invention.

Claims

1. An NFC button, its characterized in that: the radio frequency identification device comprises an upper shell, a main shell, a base, a radio frequency identification module and a PCB (printed circuit board), wherein the upper shell is arranged above the main shell, the base is positioned below the main shell and is fixed on the PCB, and a corresponding reset structure is arranged below the upper shell; the radio frequency identification module part is arranged in the middle of the base, and the rest part of the radio frequency identification module is arranged at the peripheral position of the PCB arranged with the base.

2. The NFC key according to claim 1, wherein: the whole octagon cylinder that is of main casing body, and the main casing body is close to the limit that prolongs of last casing and sets up inside convex spacing boss, goes up the casing and is close to the limit that prolongs of main casing body one side and sets up outside convex spacing.

3. An NFC key according to claim 2, wherein: rectangular notches are arranged in the middle of one pair of opposite two sides of the main shell, and chamfered trapezoidal notches are arranged in the middle of the other pair of opposite two sides of the main shell.

4. An NFC key according to claim 3, wherein: the intermediate position of trapezoidal breach sets up the deepening notch, goes up the casing and sets up corresponding rectangular shape lug corresponding to the deepening notch.

5. An NFC key according to claim 1, wherein: one side of the main shell close to the base is provided with a placement groove; the base is rectangular as a whole, and the width of the base is adapted to the arrangement groove; the two ends of the base are provided with baffles for limiting the outer side of the main shell.

6. An NFC key according to claim 5, characterised in that: the long edges of the two sides of the base are distributed with inclined convex plates, and the convex plates are contacted with the placing grooves of the main shell.

7. An NFC key according to claim 5, characterised in that: and a part of radio frequency identification modules are arranged in the middle of the base, and corresponding through holes are formed in the middle of the base, so that the part of radio frequency identification modules are communicated with the PCB.

8. An NFC key according to claim 1, wherein: the radio frequency identification module comprises a radio frequency identification chip, an induction coil, a capacitor and a resistor; a capacitor C11 is connected between No. 3 and No. 4 pins of the radio frequency identification chip, one end of a capacitor C11 is connected with one end of a capacitor C8 and one end of an induction coil, the other end of the capacitor C8 is grounded, the other end of the induction coil is connected with the other end of a capacitor C11 and one end of a capacitor C13, and the other end of the capacitor C13 is grounded; the DPO, SCL and SDA pins of the radio frequency identification chip are respectively connected with one ends of a resistor R3, a resistor R4 and a resistor R5, the other ends of the resistor R3, the resistor R4 and the resistor R5 are connected with VCC, the VCC pin of the radio frequency identification chip and one end of a capacitor C5 are connected with VCC together, and the other end of the capacitor C5 is grounded; pins 0 and 4 of the radio frequency identification chip are grounded;