Digital encryption safety electronic key for mechatronics intelligent door lock

Abstract

The utility model discloses a digital encryption safety electronic key for a mechatronics intelligent door lock. The digital encryption safety electronic key comprises a key body, an insulating shell, an induction ring, a protective cover and a main control circuit board, the key body comprises a negative plate and a positive plate; the insulation shell is arranged on the negative plate and the positive plate through thermoplastic forming, the induction ring is arranged on an installation step at the front end part of the insulation shell, and the main control circuit board is arranged in the insulation shell. According to the digital encryption safety electronic key for the mechatronics intelligent door lock, the key body structure is uniquely arranged and matched with the main control circuit board, so that the problem of unlocking by copying mechanical teeth traditionally is solved, registration or logout of the electronic key can be set through the lock body, illegal unlocking caused by logout of the key is avoided, and the safety of the door lock is improved. And through a plurality of mechanical and electronic security detection settings, the security is extremely high.

Description

Technical Field

[0001] This utility model relates to the field of smart lock technology, and in particular to a digitally encrypted security electronic key for an electromechanical integrated smart door lock. Background Technology

[0002] Existing traditional door lock keys rely solely on the depth difference of the mechanical key's teeth to match the height difference of the single or multiple rows of pin tumblers in the lock cylinder or the left and right misalignment gap of the mechanical key blades to ensure lock security. There are also a few electronic digital keys with a built-in single chip, such as button keys, which have a built-in identification code. Access control systems identify the key by reading this identification code. These electronic keys use a reader to solidify the identification code in an IC card, which has limited information capacity and cannot meet the access control requirements of security. Furthermore, they cannot overcome the drawback of being able to unlock by copying the mechanical key's teeth, resulting in a low security level. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a digital encryption security electronic key for an electromechanical integrated smart door lock. It is automatically activated by a living person and has multiple security guarantees, overcoming the drawback of existing keys that can be unlocked simply by copying the key teeth.

[0004] The technical solution adopted in this utility model is:

[0005] A digital encryption security electronic key for an electromechanical integrated smart door lock includes a key body, an insulating shell, a sensing ring, a protective cover, and a main control circuit board;

[0006] The key body includes a negative plate and a positive plate; the upper part of the negative plate is a circular handle, and the lower part is a toothed part that engages with the lock cylinder. The handle and the toothed part are connected by a stepped structure to form an integral negative plate. The negative plate has a mounting groove in the middle that extends to the bottom of the circular handle; the positive plate is installed in the mounting groove through an insulating shell.

[0007] The insulating shell is thermoformed and set on the negative plate and the positive plate. The shape of the insulating shell matches the shape of the handle and the step of the negative plate. The upper ring of the insulating shell is located inside the handle of the negative plate and protrudes from the two sides of the negative plate. The inner wall of the upper ring is provided with mounting steps at both the front and rear ends. The lower part of the insulating shell is located in the mounting groove of the negative plate. The positive plate of the key body is set in the lower part of the insulating shell and the upper end of the positive plate protrudes from the inner wall of the insulating shell.

[0008] The sensing ring is set on the mounting step at the front end of the insulating shell, and the outer end of the sensing ring is also set as a stepped structure; the protective cover includes two pieces, front and rear. The front protective cover is fastened to the inner wall of the sensing ring, and the rear protective cover is fastened to the mounting step at the rear end of the insulating shell. The front and rear protective covers and the insulating shell form a space for the installation of the main control circuit board.

[0009] The main control circuit board is housed inside the insulating shell, with its front facing the front protective cover. A slot is provided at the bottom of the main control circuit board, which is then secured to the end of the positive electrode plate. Both the induction ring and the negative electrode plate are connected to the main control circuit board.

[0010] Specifically, the positive electrode plate has a convex shape and a limiting groove in the middle of the bottom to prevent it from falling out.

[0011] Specifically, both the front and rear protective covers are installed using corresponding clips and slots, and the front protective cover is made of transparent material.

[0012] Specifically, a connecting piece is protruding from the inner wall of the sensing ring, and a connecting plate is provided on the inner wall of the upper handle of the negative electrode plate. The connecting plate protrudes from the inner wall of the insulating shell, and the sensing ring and the negative electrode plate are electrically connected to the main control circuit board through the connecting piece and the connecting plate, respectively.

[0013] More specifically, the main control circuit board includes a battery, a serial number chip DS2401, an LED, a Zener diode D1, and transistors Q1-Q4; the battery is located on the back of the main control circuit board, while the DS2401 and other components are located on the front; the negative plate of the key body serves as sensing point J1 and is connected to the ground terminal of the DS2401, the ground terminal of the DS2401 is connected to the negative terminal of the battery, and the DATA pin of the DS2401 is connected to the positive plate of the key body; the sensing ring serves as sensing point J3, and sensing point J3 is connected to the base of transistor Q4 through resistor R3; the positive terminal of the battery is connected to the emitter of transistor Q4 and the collector of transistor Q2. The electrodes are connected as follows: the emitter of transistor Q2 is connected to the positive terminal of LED; the negative terminal of LED is grounded and connected to the collector of transistor Q1 and the emitter of transistor Q3, and is connected to one end of resistor R1; the emitter of transistor Q1 is connected to the positive terminal of battery; the other end of resistor R1 is connected to the positive terminal of Zener diode D1; the base of transistor Q3 is connected between resistor R1 and Zener diode D1; one end of the negative terminal of Zener diode D1 is connected to the base of Q4; and resistor R2 is connected between the base and emitter of transistor Q4.

[0014] More specifically, the main control circuit board is also equipped with an RF sensing chip S50, which is used to work synchronously with the main board of the lock with an induction coil; and is used for card swiping to unlock.

[0015] More specifically, the LED is a low-frequency multi-color light-emitting diode with a built-in radio frequency tube. When the LED is lit, it emits a radio frequency signal, which is sent to the receiving signal component on the main board of the lock's front panel to re-verify the key; thus achieving a dual security and confidentiality function.

[0016] Due to the adoption of the technical solution described above, this utility model has the following advantages:

[0017] This utility model's mechatronics-integrated smart door lock uses a digitally encrypted security electronic key. Through the unique design of the key body structure and its cooperation with the main control circuit board, it solves the problem of traditional mechanical key fob unlocking. The electronic key can be registered or deregistered through the lock body, avoiding illegal unlocking by deregistered keys. If lost, it can be re-registered and used. Through multiple mechanical and electronic security detection settings, its security is extremely high. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the entire utility model.

[0019] Figure 2 This is an exploded view of the entire utility model.

[0020] Figure 3 This is a circuit diagram of the active circuit board of this utility model.

[0021] In the diagram: 1-Negative electrode plate, 11-Mounting slot, 12-Connecting plate, 2-Positive electrode plate, 3-Insulating shell, 4-Induction ring, 41-Connecting piece, 5-Front protective cover, 6-Rear protective cover, 7-Main control circuit board. Detailed Implementation

[0022] The present invention will be further explained below with reference to the accompanying drawings and embodiments. However, this explanation should not be construed as limiting the scope of protection of the present invention. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0023] Combined with appendix Figure 1-3 The digital encryption security electronic key for an electromechanical integrated smart door lock shown includes a key body, an insulating shell 3, a sensing ring 4, a protective cover, and a main control circuit board 7.

[0024] The key body includes a negative plate 1 and a positive plate 2; the upper part of the negative plate 1 is a circular handle, and the lower part is a toothed part that fits the lock cylinder. The handle and the toothed part are connected by a stepped structure to form an integral negative plate 1. The middle of the negative plate 1 is provided with a mounting groove 11 that extends to the bottom of the circular handle; a connecting plate 12 is provided on the inner wall of the upper handle of the negative plate 1. The connecting plate 12 protrudes from the inner wall of the insulating shell 3. The negative plate 1 is electrically connected to the main control circuit board 7 through the connecting plate 12.

[0025] The positive and negative plates are pre-embedded in the mold. The insulating shell is set on the negative and positive plates by thermoforming. The shape of the insulating shell 3 matches the shape of the handle and step of the negative plate 1. The upper ring of the insulating shell 3 is located in the handle of the negative plate 1 and protrudes from the two sides of the negative plate 1. The inner wall of the upper ring is provided with mounting steps at both ends. The lower part of the insulating shell 3 is located in the mounting groove 11 of the negative plate 1. The positive plate 2 of the key body is set in the lower part of the insulating shell 3 and the upper end of the positive plate 2 protrudes from the inner wall of the insulating shell 3. The positive plate 2 has a convex structure and a limiting groove to prevent it from falling out is provided in the middle of the bottom.

[0026] The sensing ring 4 is mounted on the mounting step at the front end of the insulating shell 3, and the outer end of the sensing ring 4 is also set as a stepped structure; a connecting piece 41 is protruding on the inner wall of the sensing ring 4, and the sensing ring 4 is electrically connected to the main control circuit board 7 through the connecting piece 41.

[0027] The protective cover consists of two pieces, front and rear. The front and rear protective covers are installed with the support through corresponding buckles and slots. The front protective cover 5 is made of transparent material and is fastened to the inner wall of the sensing ring 4. The rear protective cover 6 is fastened to the mounting step at the rear end of the insulating shell 3. The front and rear protective covers 6 and the insulating shell 3 form a space for the installation of the main control circuit board 7.

[0028] The main control circuit board 7 is set inside the insulating shell 3. The front of the main control circuit board 7 faces the front protective cover 5. The main control circuit board 7 has a slot at the bottom. The main control circuit board 7 is secured to the end of the positive plate 2 through the slot. The induction ring 4 and the negative plate 1 are both connected to the main control circuit board 7.

[0029] The main control circuit board 7 includes a button battery, a serial number chip DS2401, a low-frequency multi-color light-emitting diode (LED), a Zener diode D1, and transistors Q1-Q4. The battery is located on the back of the main control circuit board 7, while the DS2401 and other components are located on the front. The negative plate 1 of the key body serves as sensing point J1 and is connected to the ground terminal of the DS2401. The ground terminal of the DS2401 is connected to the negative terminal of the battery, and the DATA terminal of the DS2401 is connected to the positive plate of the key body. The sensing ring 4 serves as sensing point J3, which is connected to the base of transistor Q4 through resistor R3. The positive terminal of the battery is connected to the emitter of transistor Q4 and the base of transistor Q4. The collector of transistor Q2 is connected to the emitter of transistor Q3, which is connected to the positive terminal of the LED. The negative terminal of the LED is grounded and connected to the collector of transistor Q1 and the emitter of transistor Q3, and connected to one end of resistor R1. The emitter of transistor Q1 is connected to the positive terminal of the battery. The other end of resistor R1 is connected to the positive terminal of Zener diode D1. The base of transistor Q3 is connected between resistor R1 and Zener diode D1. One end of the negative terminal of Zener diode D1 is connected to the base of transistor Q4. Resistor R2 is connected between the base and emitter of transistor Q4.

[0030] The main control circuit board 7 is also equipped with an RF sensing chip S50, which is used to work synchronously with the main board of the lock with the sensing coil.

[0031] This utility model relates to a mechatronic smart door lock using a digitally encrypted security electronic key. The main control circuit board uses PNP transistor Q4 and NPN transistor Q2 to form a first Darlington transistor, and PNP transistor Q1 and NPN transistor Q3 to form a second Darlington transistor. A Zener diode D1, through a resistor R3, forms the detection electrode of this circuit. When a person simultaneously touches both sensing points J3 and J1, a base bias current is provided to transistor Q4, causing the current to be amplified through the first Darlington transistor, thereby illuminating a low-frequency multi-color LED. The LED has a built-in radio frequency (RF) transistor; as the LED lights up sequentially, it emits an RF signal. This RF signal is received by a signal receiving component on the main board of the lock's front panel, enabling communication with the main board and providing secure communication and confidentiality.

[0032] When the key is inserted into the lock protector of the lock body, the positive plate 2 of the key body is linearly connected to the positive component inside the lock protector. The positive plate 2 is connected to the DATA terminal of the DS2401, enabling the DS2401 to establish a data communication relationship with the main board of the lock through the lock protector component. The ground terminal of the DS2401 is connected to the sensing point J1, which is the negative plate 1 of the key body, thus forming a closed loop for the operation of the DS2401. This provides conditions for the security of the key after data connection with the main board of the lock and for reliable registration and deregistration operations. After the DS2401 is activated, the encrypted signal inside the DS2401 is transmitted to the main board of the lock for data consistency comparison again. Then, in conjunction with the unified mechanical component requirements of the mechanical teeth and lock cylinder pins, the lock is unlocked.

[0033] The parts of this utility model not described in detail are existing technologies.

[0034] The embodiments selected herein for the purpose of disclosing the utility model are currently considered suitable; however, it should be understood that the present invention is intended to include all variations and modifications of the embodiments that fall within the scope of the present concept and utility model.

Claims

1. A digitally encrypted security electronic key for an electromechanical integrated smart door lock, characterized in that: Includes the key body, insulating shell, sensor ring, protective cover, and main control circuit board; The key body includes a negative plate and a positive plate; the upper part of the negative plate is a circular handle, and the lower part is a toothed part that engages with the lock cylinder. The handle and the toothed part are connected by a stepped structure to form an integral negative plate. The negative plate has a mounting groove in the middle that extends to the bottom of the circular handle; the positive plate is installed in the mounting groove through an insulating shell. The insulating shell is thermoformed and set on the negative plate and the positive plate. The shape of the insulating shell matches the shape of the handle and the step of the negative plate. The upper ring of the insulating shell is located inside the handle of the negative plate and protrudes from the two sides of the negative plate. The inner wall of the upper ring is provided with mounting steps at both the front and rear ends. The lower part of the insulating shell is located in the mounting groove of the negative plate. The positive plate of the key body is set in the lower part of the insulating shell and the upper end of the positive plate protrudes from the inner wall of the insulating shell. The sensing ring is set on the mounting step at the front end of the insulating shell, and the outer end of the sensing ring is also set as a stepped structure; the protective cover includes two pieces, front and rear. The front protective cover is fastened to the inner wall of the sensing ring, and the rear protective cover is fastened to the mounting step at the rear end of the insulating shell. The front and rear protective covers and the insulating shell form a space for the installation of the main control circuit board. The main control circuit board is housed inside the insulating shell, with its front facing the front protective cover. A slot is provided at the bottom of the main control circuit board, which is then secured to the end of the positive electrode plate. Both the induction ring and the negative electrode plate are connected to the main control circuit board.

2. The digitally encrypted security electronic key for the mechatronics intelligent door lock according to claim 1, characterized in that: The positive electrode plate has a convex shape and a limiting groove in the middle of the bottom to prevent it from falling out.

3. The digitally encrypted security electronic key for the mechatronics intelligent door lock according to claim 1, characterized in that: Both the front and rear protective covers are installed using corresponding clips and slots, with the front protective cover being made of transparent material.

4. The digitally encrypted security electronic key for the mechatronics intelligent door lock according to claim 1, characterized in that: A connecting piece is protruding from the inner wall of the sensing ring, and a connecting plate is provided on the inner wall of the upper handle of the negative electrode plate. The connecting plate protrudes from the inner wall of the insulating shell. The sensing ring and the negative electrode plate are electrically connected to the main control circuit board through the connecting piece and the connecting plate, respectively.

5. The digitally encrypted security electronic key for the mechatronics intelligent door lock according to claim 4, characterized in that: The main control circuit board includes a battery, a serial number chip DS2401, an LED, a Zener diode D1, and transistors Q1-Q4; the battery is located on the back of the main control circuit board. Q4 is located on the front of the main control circuit board; the negative plate of the key body is connected to the ground terminal of DS2401 as sensing point J1, the ground terminal of DS2401 is connected to the negative terminal of the battery, and the DATA of DS2401 is connected to the positive plate of the key body; the sensing ring is connected to the sensing point J3, and sensing point J3 is connected to the base of transistor Q4 through resistor R3; the positive terminal of the battery is connected to the emitter of transistor Q4 and the collector of transistor Q2, the emitter of transistor Q2 is connected to the positive terminal of LED, the negative terminal of LED is grounded and connected to the collector of transistor Q1 and the emitter of transistor Q3 and connected to one end of resistor R1, the emitter of transistor Q1 is connected to the positive terminal of the battery, the other end of resistor R1 is connected to the positive terminal of Zener diode D1, the base of transistor Q3 is connected between resistor R1 and Zener diode D1, one end of the negative terminal of Zener diode D1 is connected to the base of Q4, and a resistor R2 is connected between the base and emitter of transistor Q4.

6. The digitally encrypted security electronic key for the mechatronics intelligent door lock according to claim 5, characterized in that: The main control circuit board is also equipped with an RF sensing chip S50, which is used to work synchronously with the main board of the lock that has an induction coil.

7. The digital encryption security electronic key for the mechatronics intelligent door lock according to claim 5, characterized in that: The LED is a low-frequency multi-color light-emitting diode with a built-in radio frequency tube. When the LED is lit, it emits a radio frequency signal, which is sent to the receiving signal component on the main board of the lock front panel to verify the key.

Images