CN111335738A

CN111335738A - Wireless key that fills based on coupling response is from main identification intelligence tool to lock

Info

Publication number: CN111335738A
Application number: CN201910789776.9A
Authority: CN
Inventors: 方旭东
Original assignee: Huasheng Zhijian Technology Shenzhen Co ltd
Current assignee: Huasheng Zhijian Technology Shenzhen Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-06-26

Abstract

The invention relates to the technical field of intelligent locks and electronic keys, and discloses a wireless charging key for automatically identifying an intelligent lock based on coupling induction, which comprises an insulating shell, a switch assembly, an indicator lamp assembly and a PCB (printed circuit board) control circuit board, wherein the switch assembly, the indicator lamp assembly and the PCB control circuit board are arranged in the insulating shell; the transmitting coil and the magnet chuck are combined to form superposition coupling between an alternating induction magnetic field and a static magnetic field, specific inductance is generated under the coupling effect, and meanwhile, the wireless charging key is started through identification of the inductance to enter a working state, so that wireless power supply is carried out on the corresponding intelligent lockset, the intelligent lockset is electrified and started, and the electrode part does not need to be contacted in the whole process.

Description

Wireless key that fills based on coupling response is from main identification intelligence tool to lock

Technical Field

The invention relates to the technical field of intelligent locks and electronic keys, in particular to a wireless charging key for automatically identifying an intelligent lock based on coupling induction.

Background

In recent years, various products emerge in the market due to the rise of development and production of intelligent locks, and the current intelligent locks are classified into active intelligent locks and passive intelligent locks; the passive intelligent lock has the advantages of no need of an external power supply or battery installation, long service life, difficulty in electronic cracking, outdoor severe condition resistance and the like.

Specifically, the method comprises the following steps: the passive intelligent lock is matched with an electronic key for use in practical application, and the conventional electronic key generally adopts an electrode power supply mode to provide a power supply for a lockset so as to ensure that the passive intelligent lock can be effectively unlocked; however, the above power supply method makes both the lock and the electronic key contain exposed metal electrodes, which not only affects the safety of the lock and the electronic key, but also easily causes the phenomenon that the lock cannot be unlocked by effectively supplying power due to the abrasion of the electrodes.

Disclosure of Invention

In order to effectively solve the problems, the invention provides a wireless charging key for an intelligent lock based on coupling induction automatic identification.

The specific technical scheme of the invention is as follows: a wireless charging key based on a coupling induction self-recognition intelligent lockset comprises an insulating shell, a switch assembly, an indicator lamp assembly and a PCB control circuit board, wherein the switch assembly, the indicator lamp assembly and the PCB control circuit board are installed in the insulating shell;

the PCB control circuit board is fixed in the lower shell and comprises a main control chip with an identification intelligent lockset, a rectifying component and an inversion component, wherein the rectifying component and the inversion component realize the conversion of direct current to alternating current, so that the current passing through the transmitting coil is the alternating current with specific frequency.

Preferably, the arrangement directions and the arrangement positions of the N poles and the S poles of the plurality of strong magnetic cylinders in the magnet sucker are combined to form a positioning code, and the wireless charging key and the intelligent lockset are matched and applied through the positioning code.

Preferably, the transmitting coil controls the inductance value in a manner of changing the wire diameter, the number of turns, the winding direction, and with or without magnetic pieces.

Preferably, first holding chamber and second holding chamber have all been seted up in casing and the upper housing down, and first holding chamber and second holding chamber are used for block transmitting coil and magnet sucking disc respectively.

Preferably, the switch assembly comprises a push switch, a switch key and a switch through hole, the push switch is fixed on the PCB, the switch through hole is arranged on the upper shell, the switch key is sleeved on the push switch, and the order of the switch key penetrates through the switch through hole.

Preferably, the indicating lamp assembly comprises an indicating lamp contact pin, an indicating lamp and a lamp hole, the bottom of the indicating lamp is welded on the PCB through the indicating lamp contact pin, and the top of the indicating lamp is inserted into the lamp hole; the indicator light mainly comprises a power indicator light and a working state indicator light.

Preferably, the power supply mode of the PCB control circuit board is battery power supply or power supply by connecting a type-C interface into an external power supply; (1) power supply by an external power supply: one end of the PCB control circuit board is welded with a charging socket, and a sealing cover is connected in the charging socket in a clamping manner; (2) battery power supply: the bottom of the PCB control circuit board is welded with a rechargeable battery through a conductive contact pin, and a conductive wire is connected between the rechargeable battery and the charging socket.

The invention has the advantages that:

(1) the transmitting coil and the magnet chuck are combined to form superposition coupling between an alternating induction magnetic field and a static magnetic field, specific inductance is generated under the coupling effect, meanwhile, the wireless charging key is started through identification of the inductance to enter a working state, wireless power supply is carried out on the corresponding intelligent lock, and therefore the intelligent lock is started in a powered-on mode, the electrode part does not need to be contacted in the integral structure or the using process, the using safety of the wireless charging key is effectively improved, and the problem of electrode abrasion cannot occur.

(2) The magnet sucker is formed by combining a plurality of strong magnetic columns distributed in an array manner, and the plurality of strong magnetic columns also form a positioning code of the magnet sucker, so that the wireless charging key and the intelligent lock are effectively positioned and butted; moreover, the strong magnetic cylinder has large magnetic field adsorption force, and can effectively ensure the stability of butt joint between the wireless charging key and the intelligent lock.

(3) To above-mentioned transmitting coil, the mode that adopts low pressure power supply, high pressure to unblank uses to effectively satisfy the demand of unblanking of intelligent tool to lock, also can reach certain power saving effect simultaneously.

Drawings

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

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural view of the lower housing of the present invention;

FIG. 4 is a schematic view of the assembly of the lower housing, transmitter coil and magnet chuck of the present invention;

FIG. 5 is a schematic view of the use of the magnetic chuck of the present invention;

FIG. 6 is a circuit schematic of the present invention;

fig. 7 is a circuit diagram of the PCB control circuit board of the present invention.

In the figure: 10-induction part, 11-transmitting coil, 12-magnet sucker, 20-lower shell, 21-first containing cavity, 22-second containing cavity, 30-upper shell, 40-switch component, 41-push switch, 42-switch button, 43-switch through hole, 50-indicator lamp component, 51-indicator lamp contact pin, 52-indicator lamp, 53-lamp hole, 60-PCB control circuit board, 61-rechargeable battery, 62-rechargeable socket and 63-sealing cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.

As shown in fig. 1-7, the present invention provides a wireless charging key based on coupling induction autonomous identification intelligent lockset;

the first embodiment:

the wireless charging key comprises an insulating shell, and an induction component 10, a switch component 40, an indicator lamp component 50 and a PCB control circuit board 60 which are arranged in the insulating shell, wherein the insulating shell comprises a lower shell 20 and an upper shell 30, and the lower shell 20 is connected with the upper shell 30 in a clamping manner; the induction part 10 is composed of a transmitting coil 11 and a magnet sucker 12, the magnet sucker 12 is composed of a plurality of strong magnetic columns with N-S pole guiding, and the plurality of strong magnetic columns are distributed in an array along the outer ring of the transmitting coil 11; the specific magnet sucker 12 is made of, but not limited to, neodymium iron boron strong magnetic material, so that the magnet sucker 12 has strong magnetic field adsorption force;

the PCB control circuit board 60 is fixed in the lower housing 20 by means of bolt connection, and the PCB control circuit board 60 includes a main control chip with an identification intelligent lock, a rectifying component and an inverting component, wherein the rectifying component and the inverting component realize conversion from direct current to alternating current, so that the current passing through the transmitting coil 11 is alternating current with specific frequency.

Specifically, correspond in the intelligent lockset with above-mentioned wireless key adaptation of filling and be equipped with receiving coil and another group magnet sucking disc 12: as shown in fig. 5, the two groups of magnetic chucks 12 realize the firm butt joint between the wireless charging key and the intelligent lock by using the principle that like poles repel each other and unlike poles attract each other, so that the receiving coil and the transmitting coil 11 can form accurate correspondence, and a static magnetic field is formed between the two groups of magnetic chucks 12 in a matching manner; meanwhile, a transmitting coil 11 in the wireless charging key is coupled with a receiving coil in the intelligent lockset, so that an alternating current induction magnetic field with specific frequency is generated between the two groups of coils; the alternating current induction magnetic field and the static magnetic field are mutually superposed to generate a magnetic field coupling effect, then the main control chip judges whether the wireless charging key is successfully matched with the intelligent lock according to special data generated by the coupling effect (the special data is the inductance value), and power is continuously supplied to the intelligent lock in a wireless charging mode after the matching is successful so as to complete the unlocking operation after the intelligent lock is electrified;

the specific unlocking operation is as follows: adopt after the circular telegram of intelligent tool to lock through wiFi, the bluetooth, wireless connection's such as radio frequency mode and peripheral equipment establish communication connection, specifically regard as peripheral equipment with the wireless key that fills in this embodiment, after the main control chip in its PCB control circuit board 60 received intelligent tool to lock the instruction, the circuit in this wireless key that fills steps up, with this output that improves transmitting coil 11, the circuit power of receiving coil in the cooperation transmitting coil 11 improvement intelligent tool to lock simultaneously, thereby overcome the mechanical potential energy in the intelligent tool to lock, accomplish the operation of unblanking.

Furthermore, the arrangement directions and the arrangement positions of the N poles and the S poles of a plurality of strong magnetic cylinders in the magnet sucker 12 are combined to form a positioning code, and the wireless charging key and the intelligent lockset are matched and applied through the positioning code; specifically, the magnet chuck 12 can be placed in a different manner with reference to fig. 5, so that only the wireless charging key and the intelligent lock which are correspondingly arranged can be docked, and the wireless charging key and the intelligent lock can be effectively in one-to-one correspondence.

Further, the transmitting coil 11 employs controlling the inductance value by changing the wire diameter, the number of turns, the winding direction, and the magnetic sheet or the magnetic sheet without the magnetic sheet, wherein the magnetic sheet is selected from but not limited to nanocrystal or ferrite.

The specific application principle of the inductance is as follows: the characteristics of a receiving coil in the intelligent lock to be unlocked are always kept unchanged, at the moment, if the transmitting coil 11 in the wireless charging key changes the characteristics, an alternating current induction magnetic field generated between the transmitting coil 11 and the receiving coil is also changed, at the moment, the inductance value correspondingly generated on the transmitting coil 11 is changed, and if the inductance value detected by the main control chip is the same as the initial preset value, the wireless charging key is judged to be successfully matched with the intelligent lock; otherwise, the matching fails; therefore, one-to-one correspondence between the wireless charging key and the intelligent lockset is further realized.

And the initial predetermined values set forth above refer to: the inductance value generated when the mutually corresponding wireless charging key is matched with the intelligent lockset;

further explanation is given with the number of coil turns as a variable: the number of turns of a coil of a receiving coil in the intelligent lockset to be unlocked is set to be A and is kept unchanged all the time; matching by adopting two wireless charging keys with a coil turn number a and a coil turn number b;

the wireless charging key and the intelligent lockset A are correspondingly combined, the measured inductance a1 is an initial preset value, and then matching starting can be carried out; b, when the wireless charging key is matched with the intelligent lock A, the measured inductance b1 is different from the inductance a1, so that the matched starting cannot be realized.

As shown in fig. 3 to 4, preferably, a first accommodating cavity 21 and a second accommodating cavity 22 are formed in the lower housing 20 and the upper housing 30, wherein the first accommodating cavity 21 and the second accommodating cavity 22 are respectively used for engaging the transmitting coil 11 and the magnetic chuck 12, so as to effectively ensure the installation stability of the inductive component 10.

As shown in fig. 2, preferably, the switch assembly 40 includes a push switch 41, a switch button 42 and a switch through hole 43, wherein the push switch 41 is fixed on the PCB 60 by bolts, the switch through hole 43 is opened on the upper casing 30, and the switch button 42 is pressed on the push switch 41, passes through the switch through hole 43 and extends to the outside of the upper casing 30; therefore, manual opening and closing of the wireless charging key in the embodiment is realized.

As shown in fig. 2, preferably, the indicator lamp assembly 50 includes an indicator lamp contact pin 51, an indicator lamp 52 and a lamp hole 53, wherein the bottom of the indicator lamp 52 is soldered to the PCB control circuit board 60 through the indicator lamp contact pin 51, and the top of the indicator lamp 52 is inserted into the lamp hole 53;

further, the indicator 52 mainly includes a power indicator and a working status indicator, so as to display the power supply status and the working status of the wireless charging key in this embodiment.

Preferably, the PCB control circuit board 60 is connected to an external power supply for power supply by adopting a type-C interface, a charging socket 62 is welded at one end of the PCB control circuit board 60, and a sealing cover 63 is connected in the charging socket 62 in a clamping manner; in this state, the charging jack 62 is connected to an external power supply and directly supplies power to the PCB control circuit board 60; the sealing cover 63 is used to protect the charging socket 62 and prevent external dust from entering the charging socket 62 when power connection is not required.

Second embodiment:

compared with the first embodiment, the power supply mode of the PCB control circuit board 60 is changed in the present embodiment, preferably, the PCB control circuit board 60 is powered by a battery, a rechargeable battery 61 is welded at the bottom end of the PCB control circuit board 60 through a conductive contact pin, and the rechargeable battery 61 and the charging socket 62 form a circuit connection; in this state, the charging socket 62 is connected to an external power source to perform a charging operation of the rechargeable battery 61, and the rechargeable battery 61 storing electric energy supplies power to the PCB control circuit board 60.

The third embodiment:

according to any one of the above two embodiments, preferably, the PCB control circuit board 60 further includes an MCU (single chip microcomputer) for controlling the power circuit, and the MCU specifically includes a current detection module and a temperature detection module, which can effectively detect the current level in the circuit and the temperature of each electronic component in the circuit;

for example: when the induction component 10 is touched with a metal object by mistake, the circuit load is overlarge, or when external power supply and battery charging are carried out, the situation that electronic elements in the circuit are overheated due to overlarge current occurs in the whole circuit, the MCU carries out forced shutdown according to the current magnitude measured in real time and the real-time temperature of the electronic elements, and the startup operation can be realized after the temperature of all the electronic elements is reduced, so that the self-protection purpose of the wireless charging key is effectively achieved.

The fourth embodiment:

for the one-to-one corresponding measuring mode disclosed in the first embodiment, the measuring range of the main control chip in the PCB 60 can be expanded in the first embodiment, so that the wireless charging key in the first embodiment can effectively identify an intelligent lock in a range or a category, and meanwhile, cloud authorization or password comparison operation is performed in combination with an external palm machine, thereby achieving the effect that a plurality of locks are unlocked by one key.

It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.

Claims

1. The utility model provides a wireless key of filling based on coupling response is from discernment intelligent lockset, includes insulating casing and installs switch module (40), pilot lamp subassembly (50) and PCB control circuit board (60) in insulating casing, and wherein insulating casing includes casing (20) and last casing (30) down, and casing (20) and last casing (30) block are connected down, its characterized in that: an induction part (10) is further fixed in the insulating shell, the induction part (10) is composed of a transmitting coil (11) and a magnet sucker (12), the magnet sucker (12) is composed of a plurality of strong magnetic columns with N-pole-S-pole guiding, and the plurality of strong magnetic columns are distributed in an array mode along the outer ring of the transmitting coil (11);

the PCB control circuit board (60) is fixed in the lower shell (20), the PCB control circuit board (60) comprises a main control chip with an identification intelligent lockset, a rectifying component and an inverting component, and the rectifying component and the inverting component realize the conversion of direct current to alternating current, so that the current passing through the transmitting coil (11) is the alternating current with specific frequency.

2. The wireless charging key based on the coupled induction self-recognition intelligent lockset is characterized in that the arrangement direction and the arrangement position of the N pole and the S pole of a plurality of strong magnetic cylinders in the magnet sucker (12) are combined to form a positioning code, and the wireless charging key and the intelligent lockset are matched through the positioning code.

3. The wireless charging key based on the coupled induction self-recognition intelligent lockset is characterized in that the transmitting coil (11) controls the inductance value in a mode of changing wire diameter, number of turns, winding direction and magnetic sheet or non-magnetic sheet.

4. The wireless charging key based on the coupling induction self-recognition intelligent lockset is characterized in that a first accommodating cavity (21) and a second accommodating cavity (22) are formed in the lower shell (20) and the upper shell (30), and the first accommodating cavity (21) and the second accommodating cavity (22) are used for clamping the transmitting coil (11) and the magnet sucker (12) respectively.

5. The wireless charging key based on the coupling induction self-recognition intelligent lockset is characterized in that the switch assembly (40) comprises a push switch (41), a switch key (42) and a switch through hole (43), the push switch (41) is fixed on a PCB (printed circuit board) control circuit board (60), the switch through hole (43) is arranged on the upper shell (30), the switch key (42) is sleeved on the push switch (41), and an order of the switch key passes through the switch through hole (43).

6. The wireless charging key based on the coupled induction self-recognition intelligent lockset, as recited in claim 1, wherein the indicator lamp assembly (50) comprises an indicator lamp contact pin (51), an indicator lamp (52) and a lamp hole (53), the bottom of the indicator lamp (52) is welded on the PCB control circuit board (60) through the indicator lamp contact pin (51), and the top of the indicator lamp (52) is inserted into the lamp hole (53).

7. The wireless charging key based on the coupling induction self-recognition intelligent lockset as claimed in claim 6, wherein the indicator light (52) mainly comprises a power indicator light and a working state indicator light.

8. The wireless charging key based on the coupling induction self-recognition intelligent lockset, as recited in claim 1, wherein the power supply mode of the PCB control circuit board (60) is battery power supply or type-C interface access external power supply.

9. The wireless charging key based on the coupling induction self-recognition intelligent lockset is characterized in that a charging socket (62) is welded at one end of the PCB control circuit board (60), and a sealing cover (63) is connected in the charging socket (62) in a clamping manner.

10. The wireless charging key based on the coupled induction self-recognition intelligent lockset, as recited in claim 9, wherein a rechargeable battery (61) is welded to the bottom end of the PCB control circuit board (60) through a conductive contact pin, and a conductive wire is connected between the rechargeable battery (61) and the charging socket (62).