Magnetic lock control circuit

Abstract

The utility model discloses a magnetic lock control circuit, which comprises a wireless communication module, a power supply module, a voltage reduction module, a time delay module, a control module, a magnetic drive module, a door switch and a magnetic lock port, and is characterized in that the control module is respectively connected with the wireless communication module, the time delay module, the magnetic drive module and the door switch; and the magnetic driving module is connected with the magnetic lock port. According to the technical scheme, the intelligent door lock comprises a wireless communication module, a power module, a voltage reduction module, a time delay module, a control module, a magnetic driving module, a door switch and a magnetic lock port, and is provided with a manual door opening mode through the door switch and a wireless control door opening mode through the wireless communication module. The remote door opening and closing control function is achieved, and great convenience is brought to a user.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic circuits, and more specifically, to a magnetic lock control circuit. Background Art

[0002] A magnetic lock, also known as an electromagnetic lock, specifically utilizes the principle of electro-magnetism. When an electric current passes through a silicon steel sheet, the electromagnetic lock generates a strong suction force to tightly hold an adsorption iron plate to achieve the effect of locking the door.

[0003] Common magnetic locks adopt a touch-press method to realize the opening and closing functions of the lock body. After the delay control module in the magnetic lock detects a touch-press signal, the delay control module controls the magnetic device to cut off the power to eliminate the magnetism and maintains this state for a certain period of time, and then controls the magnetic device to be powered on. The existing magnetic locks are only configured with one opening and closing method, and users can only operate the magnetic lock at a short distance, which brings great inconvenience to users. Summary of the Utility Model

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a magnetic lock control circuit.

[0005] The technical solution adopted by the utility model to solve the problem is as follows:

[0006] A magnetic lock control circuit includes a wireless communication module, a power supply module, a step-down module, a delay module, a control module, a magnetic drive module, a door switch, and a magnetic lock port. The power supply module is connected to the step-down module, the power supply module is connected to the magnetic drive module, the step-down module is respectively connected to the wireless communication module, the delay module, and the control module, the control module is respectively connected to the wireless communication module, the delay module, the magnetic drive module, and the door switch, and the magnetic drive module is connected to the magnetic lock port.

[0007] As a further improvement of the above technical solution, the delay module is integrated in the control module.

[0008] As a further improvement of the above technical solution, the power supply module includes an input port, an output port, a rectifier, a filter, a transformer, a power supply chip, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, capacitor C1, capacitor C2, capacitor C3, capacitor C4, diode D1, diode D2, diode D3, and switch tube Q1;

[0009] The transformer is configured with a first winding LA1, a second winding LA2, and a third winding LA3, and the power supply chip is configured with a sampling terminal, a driving terminal, and a feedback terminal;

[0010] The input port is connected to the rectifier, the rectifier is connected to the filter, the filter is connected to one end of the first winding LA1, the other end of the first winding LA1 is respectively connected to the drain of the switching transistor Q1 and the anode of the diode D1, the cathode of the diode D1 is connected to the connection point between the filter and the first winding LA1 through the resistor R1, the capacitor C1 is connected in parallel with the resistor R1, the driving end of the power supply chip is connected to the gate of the switching transistor Q1, the source of the switching transistor Q1 is connected to the ground terminal through the resistor R3, the source of the switching transistor Q1 is connected to the sampling end of the power supply chip, the cathode of the diode D3 is connected to the connection point between the filter and the first winding LA1, the anode of the diode D3 is connected to one end of the third winding LA3, the other end of the third winding LA3 is connected to the ground terminal, one end of the capacitor C4 is connected to the cathode of the diode D3, the other end of the capacitor C4 is connected to the ground terminal, the anode of the diode D3 is connected to the ground terminal successively through the resistor R4 and the resistor R5, the feedback end of the power supply chip is connected to the connection point between the resistor R4 and the resistor R5, one end of the second winding LA2 is connected to the anode of the diode D2, the cathode of the diode D2 is respectively connected to one end of the capacitor C3 and the output port, the other end of the capacitor C3 is connected to the other end of the second winding LA2, one end of the resistor R2 is connected to the anode of the diode D2, the other end of the resistor R2 is connected to the cathode of the diode D2 through the capacitor C2, and the output port is respectively connected to the buck module and the magnetic drive module.

[0011] As a further improvement of the above technical solution, the buck module includes a three-terminal voltage regulator and a capacitor C5. The output port of the power supply module is connected to the input terminal of the three-terminal voltage regulator. The output terminal of the three-terminal voltage regulator is connected to the ground terminal through the capacitor C5. The output terminal of the three-terminal voltage regulator is respectively connected to the wireless communication module and the control module.

[0012] As a further improvement of the above technical solution, the model of the power supply chip is BP3159.

[0013] As a further improvement of the above technical solution, the wireless communication module includes an antenna, a wireless integrated chip, and a triode Q2. The antenna is connected to the input terminal of the wireless integrated chip. The output terminal of the wireless integrated chip is connected to the base of the triode Q2. The emitter of the triode Q2 is connected to the ground terminal. The collector of the triode Q2 is connected to the control module.

[0014] As a further improvement of the above technical solution, the magnetic drive module includes diode D4, diode D5, diode D6, diode D7, resistor R6, resistor R7, resistor R8, resistor R9, switch tube Q3 and switch tube Q4. The magnetic lock ports are configured with two, which are respectively defined as the first magnetic lock port and the second magnetic lock port. One output terminal of the control module is connected to the positive electrode of diode D4. The negative electrode of diode D4 is connected to the gate of switch tube Q3 through resistor R6. The gate of switch tube Q3 is connected to the ground terminal through resistor R7. The source of switch tube Q3 is connected to the ground terminal. The drain of switch tube Q3 is respectively connected to one end of the first magnetic lock port and the negative electrode of diode D5. The positive electrode of diode D5 is connected to the ground terminal. The other end of the first magnetic lock port is connected to the power supply module. One output terminal of the control module is connected to the positive electrode of diode D6. The negative electrode of diode D6 is connected to the gate of switch tube Q4 through resistor R8. The gate of switch tube Q4 is connected to the ground terminal through resistor R9. The source of switch tube Q4 is connected to the ground terminal. The drain of switch tube Q4 is respectively connected to one end of the second magnetic lock port and the negative electrode of diode D7. The positive electrode of diode D7 is connected to the ground terminal. The other end of the second magnetic lock port is connected to the power supply module.

[0015] The beneficial effects of the present utility model are as follows: This technical solution includes a wireless communication module, a power supply module, a step-down module, a delay module, a control module, a magnetic drive module, a door switch and magnetic lock ports. This technical solution is configured with a manual door opening method through the door switch and a wireless control door opening method through the wireless communication module, realizing the function of remote door opening and closing control, bringing great convenience to users. Description of the Drawings

[0016] The following further explains and illustrates the present utility model in conjunction with the description of the drawings and the specific implementation manners.

[0017] Figure 1 is the circuit module framework diagram of the present utility model;

[0018] Figure 2 is the circuit diagram of the power supply module in the present utility model;

[0019] Figure 3 is the circuit diagram of the step-down module and the wireless communication module in the present utility model;

[0020] Figure 4 is the circuit diagram of the magnetic drive module in the present utility model. Specific Implementation Manner

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The role of the accompanying drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, such as up, down, front, back, left, right, etc., the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present utility model.

[0023] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the recited number, and understandings such as "above", "below", "within", etc. include the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0024] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0025] Refer to Figures 1 to 4 , this application discloses a magnetic lock control circuit. In its first embodiment, it includes a wireless communication module, a power supply module, a step-down module, a delay module, a control module, a magnetic drive module, a door switch, and a magnetic lock port. The power supply module is connected to the step-down module, the power supply module is connected to the magnetic drive module, the step-down module is respectively connected to the wireless communication module, the delay module, and the control module, the control module is respectively connected to the wireless communication module, the delay module, the magnetic drive module, and the door switch, and the magnetic drive module is connected to the magnetic lock port.

[0026] During the actual application of this embodiment, after connecting to the AC mains, the power supply module outputs a voltage of 13 - 15V to supply power to the system. The buck module reduces the voltage amplitude output by the power supply module and outputs a voltage of about 5V. In this embodiment, the magnetic lock is in a normally closed state. When the door switch is triggered, the control module disconnects the power supply to the magnetic lock through the magnetic drive module, and after a certain delay according to the delay setting of the delay module, the control module supplies power to the magnetic lock through the magnetic drive module to close the door. Similarly, when the wireless communication module receives an opening signal, it transmits relevant signals to the control module to make the control module perform corresponding processing.

[0027] Specifically, this embodiment is configured with two ways of opening and closing the door, namely, a manual door opening method through the door switch and a wireless control door opening method through the wireless communication module, realizing the function of remote door opening and closing control, which brings great convenience to users.

[0028] Further as a preferred embodiment, in this embodiment, the delay module is integrated in the control module.

[0029] Further as a preferred embodiment, in this embodiment, the power supply module includes an input port, an output port, a rectifier, a filter, a transformer, a power supply chip, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, capacitor C1, capacitor C2, capacitor C3, capacitor C4, diode D1, diode D2, diode D3, and switch Q1;

[0030] The transformer is configured with a first winding LA1, a second winding LA2, and a third winding LA3, and the power supply chip is configured with a sampling terminal, a driving terminal, and a feedback terminal;

[0031] The input port is connected to the rectifier, the rectifier is connected to the filter, the filter is connected to one end of the first winding LA1, the other end of the first winding LA1 is respectively connected to the drain of the switching transistor Q1 and the anode of the diode D1, the cathode of the diode D1 is connected to the connection point between the filter and the first winding LA1 through the resistor R1, the capacitor C1 is connected in parallel with the resistor R1, the driving end of the power supply chip is connected to the gate of the switching transistor Q1, the source of the switching transistor Q1 is connected to the ground terminal through the resistor R3, the source of the switching transistor Q1 is connected to the sampling terminal of the power supply chip, the cathode of the diode D3 is connected to the connection point between the filter and the first winding LA1, the anode of the diode D3 is connected to one end of the third winding LA3, the other end of the third winding LA3 is connected to the ground terminal, one end of the capacitor C4 is connected to the cathode of the diode D3, the other end of the capacitor C4 is connected to the ground terminal, the anode of the diode D3 is successively connected to the ground terminal through the resistor R4 and the resistor R5, the feedback terminal of the power supply chip is connected to the connection point between the resistor R4 and the resistor R5, one end of the second winding LA2 is connected to the anode of the diode D2, the cathode of the diode D2 is respectively connected to one end of the capacitor C3 and the output port, the other end of the capacitor C3 is connected to the other end of the second winding LA2, one end of the resistor R2 is connected to the anode of the diode D2, the other end of the resistor R2 is connected to the cathode of the diode D2 through the capacitor C2, and the output port is respectively connected to the buck module and the magnetic drive module.

[0032] Further as a preferred embodiment, in this embodiment, the buck module includes a three-terminal voltage regulator and a capacitor C5. The output port of the power supply module is connected to the input terminal of the three-terminal voltage regulator. The output terminal of the three-terminal voltage regulator is connected to the ground terminal through the capacitor C5. The output terminal of the three-terminal voltage regulator is respectively connected to the wireless communication module and the control module.

[0033] Further as a preferred embodiment, in this embodiment, the model of the power supply chip is BP3159.

[0034] Further as a preferred embodiment, in this embodiment, the wireless communication module includes an antenna, a wireless integrated chip, and a triode Q2. The antenna is connected to the input terminal of the wireless integrated chip. The output terminal of the wireless integrated chip is connected to the base of the triode Q2. The emitter of the triode Q2 is connected to the ground terminal. The collector of the triode Q2 is connected to the control module.

[0035] Further as a preferred embodiment, in this embodiment, the magnetic drive module includes a diode D4, a diode D5, a diode D6, a diode D7, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a switching transistor Q3 and a switching transistor Q4. The magnetic lock has two ports, which are respectively defined as a first magnetic lock port and a second magnetic lock port. One output terminal of the control module is connected to the positive electrode of the diode D4. The negative electrode of the diode D4 is connected to the gate of the switching transistor Q3 through the resistor R6. The gate of the switching transistor Q3 is connected to the ground terminal through the resistor R7. The source of the switching transistor Q3 is connected to the ground terminal. The drain of the switching transistor Q3 is respectively connected to one end of the first magnetic lock port and the negative electrode of the diode D5. The positive electrode of the diode D5 is connected to the ground terminal. The other end of the first magnetic lock port is connected to the power supply module. One output terminal of the control module is connected to the positive electrode of the diode D6. The negative electrode of the diode D6 is connected to the gate of the switching transistor Q4 through the resistor R8. The gate of the switching transistor Q4 is connected to the ground terminal through the resistor R9. The source of the switching transistor Q4 is connected to the ground terminal. The drain of the switching transistor Q4 is respectively connected to one end of the second magnetic lock port and the negative electrode of the diode D7. The positive electrode of the diode D7 is connected to the ground terminal. The other end of the second magnetic lock port is connected to the power supply module.

[0036] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A magnetic lock control circuit, characterized in that: It includes a wireless communication module, a power module, a step-down module, a delay module, a control module, a magnetic drive module, a door switch, and a magnetic lock port. The power module is connected to the step-down module, and the power module is connected to the magnetic drive module. The step-down module is respectively connected to the wireless communication module, the delay module, and the control module. The control module is respectively connected to the wireless communication module, the delay module, the magnetic drive module, and the door switch. The magnetic drive module is connected to the magnetic lock port.

2. The magnetic lock control circuit according to claim 1, wherein: The delay module is integrated within the control module.

3. The magnetic lock control circuit according to claim 2, wherein: The power module includes an input port, an output port, a rectifier, a filter, a transformer, a power chip, resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, capacitor C1, capacitor C2, capacitor C3, capacitor C4, diode D1, diode D2, diode D3, and switch tube Q1; The transformer is configured with a first winding LA1, a second winding LA2, and a third winding LA3. The power chip is configured with a sampling terminal, a driving terminal, and a feedback terminal; The input port is connected to the rectifier, the rectifier is connected to the filter, the filter is connected to one end of the first winding LA1. The other end of the first winding LA1 is respectively connected to the drain of the switch tube Q1 and the positive electrode of the diode D1. The negative electrode of the diode D1 is connected to the connection point between the filter and the first winding LA1 through the resistor R1. The capacitor C1 is in parallel with the resistor R1. The driving terminal of the power chip is connected to the gate of the switch tube Q1. The source of the switch tube Q1 is connected to the ground terminal through the resistor R3, and the source of the switch tube Q1 is connected to the sampling terminal of the power chip. The negative electrode of the diode D3 is connected to the connection point between the filter and the first winding LA1. The positive electrode of the diode D3 is connected to one end of the third winding LA3. The other end of the third winding LA3 is connected to the ground terminal. One end of the capacitor C4 is connected to the negative electrode of the diode D3, and the other end of the capacitor C4 is connected to the ground terminal. The positive electrode of the diode D3 is successively connected to the ground terminal through the resistor R4 and the resistor R5. The feedback terminal of the power chip is connected to the connection point between the resistor R4 and the resistor R5. One end of the second winding LA2 is connected to the positive electrode of the diode D2. The negative electrode of the diode D2 is respectively connected to one end of the capacitor C3 and the output port. The other end of the capacitor C3 is connected to the other end of the second winding LA2. One end of the resistor R2 is connected to the positive electrode of the diode D2. The other end of the resistor R2 is connected to the negative electrode of the diode D2 through the capacitor C2. The output port is respectively connected to the step-down module and the magnetic drive module.

4. The magnetic lock control circuit according to claim 3, characterized in that: The step-down module includes a three-terminal voltage regulator and a capacitor C5. The output port of the power supply module is connected to the input terminal of the three-terminal voltage regulator. The output terminal of the three-terminal voltage regulator is connected to the ground terminal through the capacitor C5. The output terminal of the three-terminal voltage regulator is respectively connected to the wireless communication module and the control module.

5. The magnetic lock control circuit according to claim 3, wherein: The model number of the power supply chip is BP3159.

6. The magnetic lock control circuit according to claim 2, wherein: The wireless communication module includes an antenna, a wireless integrated chip, and a triode Q2. The antenna is connected to the input terminal of the wireless integrated chip. The output terminal of the wireless integrated chip is connected to the base of the triode Q2. The emitter of the triode Q2 is connected to the ground terminal. The collector of the triode Q2 is connected to the control module.

7. The magnetic lock control circuit according to claim 2, characterized in that: The magnetic drive module includes diodes D4, D5, resistors R6, R7, R8, R9, a switching transistor Q3, and a switching transistor Q4. The magnetic lock has two ports, which are respectively defined as the first magnetic lock port and the second magnetic lock port. One output terminal of the control module is connected to the positive electrode of the diode D4. The negative electrode of the diode D4 is connected to the gate of the switching transistor Q3 through the resistor R6. The gate of the switching transistor Q3 is connected to the ground terminal through the resistor R7. The source of the switching transistor Q3 is connected to the ground terminal. The drain of the switching transistor Q3 is respectively connected to one end of the first magnetic lock port and the negative electrode of the diode D5. The positive electrode of the diode D5 is connected to the ground terminal. The other end of the first magnetic lock port is connected to the power supply module. One output terminal of the control module is connected to the positive electrode of the diode D6. The negative electrode of the diode D6 is connected to the gate of the switching transistor Q4 through the resistor R8. The gate of the switching transistor Q4 is connected to the ground terminal through the resistor R9. The source of the switching transistor Q4 is connected to the ground terminal. The drain of the switching transistor Q4 is respectively connected to one end of the second magnetic lock port and the negative electrode of the diode D7. The positive electrode of the diode D7 is connected to the ground terminal. The other end of the second magnetic lock port is connected to the power supply module.

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