Anti-shake false opening electric mortise lock access control device

Abstract

The utility model discloses a kind of anti-shaking false opening electric latch access control equipment, access control equipment includes power supply, magnetic latching relay, electrolytic capacitor, electric latch;Wherein, the first end of power supply is connected with the first end of magnetic latching relay, the second end of magnetic latching relay is respectively connected with the first end of electrolytic capacitor, the first end of electric latch;The second end of power supply is respectively connected with the second end of electrolytic capacitor, the second end of electric latch.For solving the problem that existing access control is easy to shake and false opening door, the present application uses magnetic latching relay in access control equipment and electrolytic capacitor is connected in parallel in the output end of magnetic latching relay control power supply, and double measures increase anti-shaking performance;Moreover, for solving the problem that separate installation causes great construction difficulty, the present application uses integrated design, i.e. in access control equipment integration electric latch and relay, both can realize anti-shaking false opening door and can reduce hardware cost and installation cost.The present application can be widely applied in access control equipment technical field.

Description

Technical Field

[0001] This utility model relates to the field of access control equipment technology, and in particular to an access control device that prevents accidental opening of an electric bolt lock due to shaking. Background Technology

[0002] Existing access control systems all use electromagnetic relays to control the power supply to electric bolt locks, thus controlling the door's opening and closing. However, when the access control system is tapped, the electromagnetic relay's spring contacts may briefly disconnect due to mechanical vibration, causing the electric bolt lock to lose power and the door to open accidentally. Current access control systems generally use electromagnetic relays to control the power supply to electric bolt locks, thus controlling the door's opening and closing. Access control systems such as QR code access control and facial recognition access control are usually installed on the outside of the door. Because electromagnetic relays have poor resistance to mechanical vibration, they can be tapped to cause them to vibrate and open accidentally, rendering the lock ineffective. To prevent this vibration-induced opening, some systems separate the relay control board from the access control panel, but this increases the difficulty of on-site installation. Utility Model Content

[0003] In view of this, this utility model provides an access control device that prevents accidental opening of electric bolt locks due to vibration, so as to reduce the risk of the access control device accidentally opening the door due to vibration.

[0004] This utility model embodiment provides an access control device to prevent accidental opening of an electric bolt lock due to shaking. The access control device includes: a power supply, a magnetic latching relay, an electrolytic capacitor, and an electric bolt lock.

[0005] Wherein, the first end of the power supply is connected to the first end of the magnetic latching relay, and the second end of the magnetic latching relay is connected to the first end of the electrolytic capacitor and the first end of the electric bolt lock respectively;

[0006] The second terminal of the power supply is connected to the second terminal of the electrolytic capacitor and the second terminal of the electric bolt lock, respectively.

[0007] In some implementations, the power supply is provided by an MCU;

[0008] The DO1 pin of the MCU is connected to the first end of the coil of the magnetic latching relay through a signal control circuit.

[0009] The DO2 pin of the MCU is connected to the second end of the coil of the magnetic latching relay through another signal control circuit.

[0010] The COM terminal of the magnetic latching relay switch is connected to the positive terminal of one of the electrolytic capacitors and pin 1 of the electric bolt lock J1 socket, respectively.

[0011] The NO terminal of the magnetic latching relay switch is connected to the positive terminal of the other electrolytic capacitor and pin 2 of the electric bolt lock J1 socket.

[0012] In some implementations, the signal control circuit includes a first resistor, a second resistor, an NPN transistor, and a diode;

[0013] Wherein, the first end of the first resistor and the first end of the second resistor are connected to the DO1 pin or the DO2 pin;

[0014] The second end of the first resistor is connected to the base of the NPN transistor, the second end of the second resistor and the emitter of the NPN transistor are connected to a reference ground, and the collector of the NPN transistor is connected to the positive terminal of the diode.

[0015] The positive terminal of the diode is also connected to the coil of the magnetic latching relay; the negative terminal of the diode is connected to VCC.

[0016] The VCC is also connected to the coil of the magnetic latching relay.

[0017] One technical solution in the above-described embodiment of the present utility model has the following advantages:

[0018] To address the issue of accidental door opening due to vibration in existing access control systems, this application employs a magnetic latching relay in the access control device and connects an electrolytic capacitor in parallel at the control power output terminal of the magnetic latching relay, thus enhancing anti-vibration performance through dual measures. Furthermore, to solve the problem of difficult construction caused by separate installations, this application adopts an integrated design, that is, integrating an electric bolt lock and a relay into the access control device, which can both prevent accidental door opening due to vibration and reduce hardware and installation costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the principle of an access control device for preventing accidental opening of an electric bolt lock due to shaking, according to this utility model.

[0020] Figure 2 This is an example circuit diagram of an access control device for preventing accidental opening of an electric bolt lock based on shaking, according to this utility model. Detailed Implementation

[0021] Terminology Explanation:

[0022] Electromagnetic relay: an electromechanical component that uses an input signal (voltage, current) to generate electromagnetic force in the core of an electromagnet, attracting an armature, thereby causing the contacts to open, close, or switch control.

[0023] Magnetic latching relay: A type of relay in which the coil does not need to be energized when the contacts are in the latching state, and the state can be maintained by the magnetic force of a permanent magnet.

[0024] Access control equipment: an intelligent device that controls the opening and closing of electric locks, such as QR code access control and facial recognition access control.

[0025] Reference Figure 1 , Figure 1 The present invention is shown in the schematic diagram. The present invention provides an access control device for preventing accidental opening of an electric bolt lock due to shaking. The access control device includes: a power supply, a magnetic latching relay, an electrolytic capacitor, and an electric bolt lock.

[0026] Wherein, the first end of the power supply is connected to the first end of the magnetic latching relay, and the second end of the magnetic latching relay is connected to the first end of the electrolytic capacitor and the first end of the electric bolt lock respectively;

[0027] The second terminal of the power supply is connected to the second terminal of the electrolytic capacitor and the second terminal of the electric bolt lock, respectively.

[0028] Optionally, the power supply is provided by an MCU;

[0029] The DO1 pin of the MCU is connected to the first end of the coil of the magnetic latching relay through a signal control circuit.

[0030] The DO2 pin of the MCU is connected to the second end of the coil of the magnetic latching relay through another signal control circuit.

[0031] The COM terminal of the magnetic latching relay switch is connected to the positive terminal of one of the electrolytic capacitors and pin 1 of the electric bolt lock J1 socket, respectively.

[0032] The NO terminal of the magnetic latching relay switch is connected to the positive terminal of the other electrolytic capacitor and pin 2 of the electric bolt lock J1 socket.

[0033] Optionally, the signal control circuit includes a first resistor, a second resistor, an NPN transistor, and a diode;

[0034] Wherein, the first end of the first resistor and the first end of the second resistor are connected to the DO1 pin or the DO2 pin;

[0035] The second end of the first resistor is connected to the base of the NPN transistor, the second end of the second resistor and the emitter of the NPN transistor are connected to a reference ground, and the collector of the NPN transistor is connected to the positive terminal of the diode.

[0036] The positive terminal of the diode is also connected to the coil of the magnetic latching relay; the negative terminal of the diode is connected to VCC.

[0037] The VCC is also connected to the coil of the magnetic latching relay.

[0038] Figure 1 The explanation is as follows:

[0039] a) A magnetic latching relay controls the on / off state of the positive terminal of the electric bolt lock power supply;

[0040] b) A capacitor is connected in parallel between the NO port of the magnetic latching relay and the negative terminal of the power supply. This capacitor has a certain smoothing effect on power supply debouncing.

[0041] c) A magnetic latching relay with enhanced anti-shake performance and a large capacitor power supply provides dual protection against shaking, solving the problem of accidental opening of electric bolt locks due to shaking.

[0042] The present invention will be further explained and described below with reference to the accompanying drawings and specific embodiments.

[0043] Reference Figure 2 , Figure 2 This is an example circuit diagram of the access control device in this embodiment.

[0044] The example circuit diagram is explained below:

[0045] a) When a pulse signal is sent to DO1 of the MCU, the COM and NO pins of the magnetic latching relay are turned on.

[0046] b) When the MCU's DO2 outputs a pulse signal, the COM and NO pins of the magnetic latching relay are disconnected.

[0047] c) Connect pin 1 of socket J1 to the COM pin of the magnetic latching relay, and pin 2 to the NO pin of the magnetic latching relay;

[0048] d) Large electrolytic capacitors are connected in parallel to GND for the COM and NO pins of the magnetic latching relay to reduce power supply jitter.

[0049] e) The MCU controls the opening and closing of the electric bolt lock by controlling the COM and NO pins of the magnetic latching relay through two IO ports, DO1 and DO2.

[0050] Through the above solution, the access control device for preventing accidental opening of electric bolt locks due to mechanical vibration provided in this embodiment can solve the problem of accidental opening of electric bolt locks due to mechanical vibration.

[0051] Beneficial effects:

[0052] This embodiment provides an access control device that prevents accidental opening of electric bolt locks due to vibration, solving the problem of accidental opening of electric bolt locks caused by mechanical vibration. The method in this embodiment solves the problem of accidental opening of electric bolt locks due to mechanical vibration in access control devices, improving the security of the access control device. Compared with the separate installation of the relay control main board and the access control panel, the installation of the access control device in this embodiment is simpler. This embodiment optimizes the shortcomings of access control devices, improves product security, and has good social benefits.

[0053] 1. This embodiment provides an access control device to prevent accidental opening of electric bolt locks due to vibration, solving the problem of accidental opening of electric bolt locks due to mechanical vibration;

[0054] 2. This embodiment uses a magnetic latching relay with stronger anti-jitter performance;

[0055] 3. In this embodiment, an electrolytic capacitor is connected in parallel at the output of the relay control power supply to achieve power supply debouncing of the electric bolt lock, further reducing the probability of accidental opening of the electric bolt lock;

[0056] 4. The magnetic latching relay with capacitor debounce protection provides dual protection, overcoming the shortcomings of access control equipment and improving product security.

[0057] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An access control device for preventing accidental opening of an electric bolt lock due to vibration, characterized in that, The access control device includes: a power supply, a magnetic latching relay, an electrolytic capacitor, and an electric bolt lock; Wherein, the first end of the power supply is connected to the first end of the magnetic latching relay, and the second end of the magnetic latching relay is connected to the first end of the electrolytic capacitor and the first end of the electric bolt lock respectively; The second terminal of the power supply is connected to the second terminal of the electrolytic capacitor and the second terminal of the electric bolt lock, respectively. The power supply is provided by an MCU; The DO1 pin of the MCU is connected to the first end of the coil of the magnetic latching relay through a signal control circuit. The DO2 pin of the MCU is connected to the second end of the coil of the magnetic latching relay through another signal control circuit. The COM terminal of the magnetic latching relay switch is connected to the positive terminal of one of the electrolytic capacitors and pin 1 of the electric bolt lock J1 socket, respectively. The NO terminal of the magnetic latching relay switch is connected to the positive terminal of the other electrolytic capacitor and pin 2 of the electric bolt lock J1 socket.

2. The anti-shake mis-opening electric mortise lock access control device according to claim 1, characterized in that, The signal control circuit includes a first resistor, a second resistor, an NPN transistor, and a diode; Wherein, the first end of the first resistor and the first end of the second resistor are connected to the DO1 pin or the DO2 pin; The second end of the first resistor is connected to the base of the NPN transistor, the second end of the second resistor and the emitter of the NPN transistor are connected to a reference ground, and the collector of the NPN transistor is connected to the positive terminal of the diode. The positive terminal of the diode is also connected to the coil of the magnetic latching relay; the negative terminal of the diode is connected to VCC. The VCC is also connected to the coil of the magnetic latching relay.

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