Door lock control device and system of automatic vending equipment and automatic vending equipment

Abstract

The utility model relates to a door lock control device and system of automatic vending equipment and the automatic vending equipment, the door lock control device comprises a main control module, a door lock driving module and a door lock detection module, and the main control module is used for sending a control instruction; the door lock driving module is connected with the main control module and is used for receiving the control instruction to output a driving signal to a door lock and controlling the door lock to be opened or closed; the door lock detection module is connected with the main control module and used for detecting the unlocking state of the door lock to obtain a door lock detection signal and sending the door lock detection signal to the main control module, it is ensured that a door opening control instruction or a door closing control instruction is executed successfully, whether the door lock is not opened or closed in time or not and other abnormal conditions occur or not is known in time, and the safety of the door lock is improved. And when an abnormal condition occurs, relevant measures can be taken in time.

Description

Technical Field

[0001] This application relates to the technical field of vending, and particularly to a door lock control device, system and vending device for a vending device. Background Art

[0002] In recent years, with the rapid development of the sharing economy, vending machines have become a part of modern people's lives. Whether in crowded places such as shopping malls, stations, airports, or in public places such as schools and hospitals, vending machines can be seen. Vending machines are not only convenient and fast for consumers, but also can save the labor cost of merchants and improve the work efficiency of merchants.

[0003] Most of the door lock control devices of vending machines on the market currently only have the functions of opening and closing. Due to the lack of a door lock status detection mechanism, it is impossible to timely understand whether there are abnormal situations such as the door lock not being opened or closed. Utility Model Content

[0004] Based on this, it is necessary to provide a door lock control device, system and vending device for a vending device in view of the above technical problems.

[0005] In a first aspect, the present utility model provides a door lock control device for a vending device, including:

[0006] A main control module, configured to send a control instruction;

[0007] A door lock driving module, connected to the main control module, configured to receive the control instruction to output a driving signal to the door lock to control the opening or closing of the door lock;

[0008] A door lock detection module, connected to the main control module, configured to detect the unlocking state of the door lock to obtain a door lock detection signal, and send the door lock detection signal to the main control module.

[0009] In one embodiment, the door lock driving module includes a first switch, one end of the first switch is connected to the main control module, and the other end of the first switch is connected to the door lock,

[0010] The first switch is configured to, in the case that the main control module sends a first control instruction, receive the first control instruction to output a first driving signal to the door lock to control the opening of the door lock, and

[0011] in the case that the main control module sends a second control instruction, receive the second control instruction to output a second driving signal to the door lock to control the closing of the door lock.

[0012] In one embodiment, the door lock driving module further includes a resistor R1 and a resistor R2,

[0013] One end of the resistor R1 is connected to the control instruction sent by the main control module. The other end of the R1 is connected to one end of the resistor R2 and the first end of the first switch. The other end of the resistor R2 is connected to the second end of the first switch and the common ground. The third end of the first switch is connected to the door lock.

[0014] In one embodiment, the first switch is a MOS transistor. The gate of the MOS transistor is connected to the other end of the resistor R1. The source of the MOS transistor is connected to the common ground. The drain of the MOS transistor is connected to the door lock.

[0015] In one embodiment, the device further includes a first connection circuit. One end of the first connection circuit is connected to the door lock driving module. The other end of the first connection circuit is connected to the door lock. The first connection circuit includes a first connector, a capacitor C1, and a capacitor C2.

[0016] The first pin of the first connector, one end of the capacitor C1, and one end of the capacitor C2 are connected to the power supply. The other end of the capacitor C1 and the other end of the capacitor C2 are connected to the common ground.

[0017] The second pin of the first connector is connected to the driving signal output by the door lock driving module. The pin 2 of the first connector is also connected to the door lock.

[0018] In one embodiment, the first connection circuit further includes a diode. The positive electrode of the diode is connected to the second pin of the first connector. The negative electrode of the diode is connected to the power supply.

[0019] In one embodiment, the device further includes a second connection circuit. One end of the second connection circuit is connected to the door lock detection module. The other end of the second connection circuit is connected to the main control module. Wherein, the second connection circuit includes a second connector, a resistor R3, and a capacitor C3.

[0020] One end of the resistor R3 is connected to the main control module. The other end of the resistor R3 is connected to the first pin of the second connector and one end of the capacitor C3. The other end of the capacitor C3 is connected to the common ground.

[0021] The second pin of the second connector is connected to the common ground.

[0022] In one embodiment, the door lock detection module is a micro switch installed on the door lock.

[0023] Second aspect, an embodiment of the present application further provides a door lock control system for a vending device, characterized in that it includes the door lock control device and the door lock as described in the first aspect above, and the door lock control device is connected to the door lock.

[0024] Third aspect, an embodiment of the present application further provides a vending device, characterized in that it includes the door lock control system as described in the second aspect above.

[0025] The door lock control device and the vending device provided by the present utility model, wherein the door lock control device includes a main control module, a door lock driving module and a door lock detection module. The main control module is used to send control instructions; the door lock driving module is connected to the main control module and is used to receive the control instructions to output a driving signal to the door lock to control the opening or closing of the door lock; the door lock detection module is connected to the main control module and is used to detect the unlocking state of the door lock to obtain a door lock detection signal, and send the door lock detection signal to the main control module to ensure that the door opening control instruction or the door closing control instruction has been successfully executed, so as to timely understand whether there are abnormal situations such as the door lock not being opened or closed in time. When an abnormal situation occurs, relevant measures can be taken in time.

[0026] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more concise and understandable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0028] Figure 1 is a structural block diagram of a door lock control device in an embodiment;

[0029] Figure 2 is a structural block diagram of a door lock control device in another embodiment;

[0030] Figure 3 is a circuit diagram of a door lock driving module in an embodiment;

[0031] Figure 4 is a circuit diagram of a first connection circuit in an embodiment;

[0032] Figure 5 is a circuit diagram of a second connection circuit in an embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application will be described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments provided in the present application without making creative efforts belong to the scope of protection of the present application. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present application, some design, manufacturing or production changes based on the technical content disclosed in the present application are only conventional technical means and should not be understood as insufficient disclosure of the content of the present application.

[0034] In the present application, the mention of "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those of ordinary skill in the art explicitly and implicitly understand that the embodiments described in the present application may be combined with other embodiments without conflict.

[0035] Unless otherwise defined, the technical terms or scientific terms involved in the present application should have the ordinary meaning understood by those of ordinary skill in the technical field to which the present application belongs. In the present application, when an element is referred to as being "provided on" another element, it may be directly provided on the other element or there may also be an intermediate element. When an element is considered to be "disposed on" another element, it may be directly disposed on the other element or there may be an intermediate element at the same time. When an element is considered to be "fixed to" another element, it may be directly fixed to the other element or there may be an intermediate element at the same time. The terms "first", "second", "third", etc. involved in the present application are only used to distinguish similar objects and do not represent a specific order for the objects. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0036] Please refer to Figure 1 , the present utility model provides a door lock control device for a vending device, including a main control module 10, a door lock driving module 20, and a door lock detection module 30.

[0037] The main control module 10 of the present utility model is used to send control instructions; the door lock driving module 20 is connected to the main control module 10 and is used to receive the control instructions to output a driving signal to the door lock to control the opening or closing of the door lock; the door lock detection module 30 is connected to the main control module 10 and is used to detect the unlocking state of the door lock to obtain a door lock detection signal and send the door lock detection signal to the main control module 10.

[0038] For the door lock control device provided by the present utility model, the main control module 10 sends control instructions, the door lock driving module 20 receives the control instructions to output a driving signal to the door lock to control the opening or closing of the door lock, and the door lock detection module 30 detects the unlocking state of the door lock to obtain a door lock detection signal and feeds it back to the main control module 10 to ensure that the door opening control instruction or door closing control instruction sent by the main control module 10 has been successfully executed, and it is possible to timely understand whether there are abnormal situations such as the door lock not being opened or closed in time. When an abnormal situation occurs, relevant measures can be taken in a timely manner.

[0039] In one embodiment, the door lock driving module 20 includes a first switch. One end of the first switch is connected to the main control module 10, and the other end of the first switch is connected to the door lock. The first switch is used to receive the first control instruction to output a first driving signal to the door lock to control the opening of the door lock when the main control module 10 sends the first control instruction, and to receive the second control instruction to output a second driving signal to the door lock to control the closing of the door lock when the main control module 10 sends the second control instruction.

[0040] Specifically, when it is necessary to open the cargo door, the main control module 10 sends a first control instruction to the first switch. After the first switch receives the first control instruction, the first switch conducts, the door lock is powered on and the lock tongue retracts, and the cargo door can be opened; when it is necessary to close the cargo door, the main control module 10 sends a second control instruction to the first switch. After the first switch receives the second control instruction, the first switch does not conduct, the door lock has no power supply and the lock tongue pops out. At this time, the cargo door cannot be opened and the cargo door is in a closed state.

[0041] Further, the door lock driving module 20 further includes a resistor R1 and a resistor R2. One end of the resistor R1 is connected to the control instruction sent by the main control module 10. The other end of the R1 is connected to one end of the resistor R2 and the first end of the first switch. The other end of the resistor R2 is connected to the second end of the first switch to the common ground, and the third end of the first switch is connected to the door lock.

[0042] Among them, the first switch in the door lock driving module 20 is a MOS transistor. The gate of the MOS transistor is connected to the other end of the resistor R1. The source of the MOS transistor is connected to the common ground, and the drain of the MOS transistor is connected to the door lock.

[0043] In one embodiment, please refer to Figure 2 , the device further includes a first connection circuit 40. One end of the first connection circuit 40 is connected to the door lock driving module 20, and the other end of the first connection circuit 40 is connected to the door lock.

[0044] Further, the first connection circuit 40 includes a first connector, a capacitor C1, and a capacitor C2. The first pin of the first connector, one end of the capacitor C1, and one end of the capacitor C2 are connected to the power supply. The other end of the capacitor C1 and the other end of the capacitor C2 are connected to the common ground. The second pin of the first connector is connected to the driving signal output by the door lock driving module 20, and the pin 2 of the first connector is also connected to the door lock.

[0045] Further, the first connection circuit 40 further includes a diode. The positive electrode of the diode is connected to the second pin of the first connector, and the negative electrode of the diode is connected to the power supply.

[0046] In one embodiment, continue to refer to Figure 2 , the device further includes a second connection circuit 50. One end of the second connection circuit 50 is connected to the door lock detection module 30, and the other end of the second connection circuit 50 is connected to the main control module 10;

[0047] Further, the second connection circuit 50 includes a second connector, a resistor R3, and a capacitor C3. One end of the resistor R3 is connected to the main control module 10, the other end of the resistor R3 is connected to the first pin of the second connector and one end of the capacitor C3, and the other end of the capacitor C3 is connected to the common ground. The second pin of the second connector is connected to the common ground.

[0048] In one embodiment, the door lock detection module 30 is a micro switch installed on the door lock.

[0049] Specifically, when the door lock is powered on, the door lock tongue will retract. At this time, the cargo door is pushed open. At the same time, when the door lock tongue retracts, it will trigger the micro switch installed on the door lock. Therefore, the door lock feedback signal can be obtained through the state of the micro switch to determine whether the cargo door is successfully opened, and the door lock feedback signal is fed back to the main control module 10. The door lock control module 10 can obtain the state of the door lock through the door lock feedback signal.

[0050] Specifically, please refer to Figures 3 - 5 , among which,Figure 3 is the circuit diagram of the door lock driving module 20, Figure 4 is the circuit diagram of the first connection circuit 40, Figure 5 is the circuit diagram of the second connection circuit 50.

[0051] As Figure 3 shown, the door lock driving module 20 includes a resistor R1, a resistor R2, and a MOS transistor Q1. Among them, the pin CTL of the main control module 10 is connected to the resistor R1, the other end of the resistor R1 is respectively connected to the resistor R2 and the gate pin 4 of the MOS transistor Q1, the source pins 1, 2, and 3 of the MOS transistor Q1 are all connected to the system ground, and the drain pins 5, 6, 7, and 8 of the MOS transistor Q1 are connected to the pin 2 of the first connector J3.

[0052] As Figure 4 shown, the first connection circuit 40 includes a first connector J3, a capacitor C1, a capacitor C2, and a diode D1. Among them, the 12V power supply is connected to the pin 1 of the first connector J3, one end of the capacitor C1 is connected to the 12V power supply, the other end of the capacitor C1 is connected to the system ground, one end of the capacitor C2 is connected to the 12V power supply, the other end of the capacitor C2 is connected to the system ground, one end of the diode D1 is connected to the 12V power supply, the other end of the diode D1 is connected to the pin 2 of the first connector J3, the pin 1 of the first connector J3 is connected to the positive electrode of the door lock, and the pin 2 of the first connector J3 is connected to the negative electrode of the door lock.

[0053] As Figure 5 shown, the second connection circuit 50 includes a second connector J21, a resistor R3, and a capacitor C3. The pin DET of the main control module 10 is connected to the resistor R3, the other end of the resistor R3 is connected to the pin 1 of the second connector J21, and at the same time the other end of the resistor R3 is connected to the capacitor C3 to the system ground. The pin 2 of the second connector J21 is connected to the system ground, and the pin 1 of the second connector J21 is connected to the door lock feedback signal.

[0054] The door lock control device provided by the present invention realizes the door lock control process as follows:

[0055] When the door lock needs to be opened, the CTL pin of the main control module 10 generates a high-level signal. After being divided by resistors R1 and R2, the gate voltage of MOS transistor Q1 remains high, while the source voltage of MOS transistor Q1 is 0. Then, the VGS voltage is greater than the conduction threshold voltage of the MOS, and MOS transistor Q1 conducts, that is, the drain and source of MOS transistor Q1 conduct. Since the drain of MOS transistor Q1 is connected to pin 2 of connector J3, and pin 2 of connector J3 is connected to the negative terminal of the door lock, the negative terminal of the door lock conducts with the system ground. Since the positive terminal of the door lock is connected to the 12V power supply, after the door lock power is turned on, the lock tongue will retract and the door can be opened. When the door lock needs to be closed, the CTL pin of the main control module 10 generates a low-level signal. After being divided by resistors R1 and R2, the gate voltage of MOS transistor Q1 is also low, while the source voltage of MOS transistor Q1 is 0V. Then, the VGS voltage is 0V, which is less than the conduction threshold voltage of MOS transistor Q1, and MOS transistor Q1 does not conduct. At this time, the negative terminal of the door lock does not conduct with the system ground. Even if there is a 12V power supply at the positive terminal of the door lock, a loop cannot be formed. Without power supply, the door lock will eject the lock tongue, and at this time the door cannot be opened and is in the closed state. Since the door lock is a magnetic device, a reverse electromotive force will be generated after the door lock is powered off. The freewheeling diode D1 can protect MOS transistor Q1 from being damaged by the reverse electromotive force. At the same time, there is a micro switch on the door lock. When the door lock retracts, the state of the micro switch will change, and this state is sent to the DET pin of the main control module 10 through pin 1 of connector J21, and the main control module 10 can then obtain the state of the door lock.

[0056] In one embodiment, the present application further provides a door lock control system for a vending device, including the door lock control device and the door lock as described in any of the above embodiments, and the door lock control device is connected to the door lock.

[0057] In addition, the embodiment of the present application further provides a vending device, including the door lock control system as described in the above embodiment.

[0058] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0059] The above embodiments only express several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A door lock control device for an automatic vending machine, characterized in that: include: Main control module, used to send control instructions; A door lock driving module, connected to the main control module, for receiving the control instruction to output a driving signal to the door lock, and controlling the opening or closing of the door lock; A door lock detection module, connected to the main control module, for detecting the unlocking state of the door lock to obtain a door lock detection signal, and sending the door lock detection signal to the main control module; The door lock driving module includes a first switch, one end of the first switch is connected to the main control module, and the other end of the first switch is connected to the door lock. The first switch is used to receive the first control instruction to output a first drive signal to the door lock to control the door lock to open when the main control module sends the first control instruction, and In the case where the main control module sends a second control instruction, the second control instruction is received to output a second drive signal to the door lock to control the door lock to close.

2. The device according to claim 1, characterized in that The door lock drive module also includes a resistor R1 and a resistor R2. One end of the resistor R1 is connected to the control instruction sent by the main control module, the other end of R1 is connected to one end of the resistor R2 and the first end of the first switch, the other end of the resistor R2 and the second end of the first switch are connected to a common ground, and the third end of the first switch is connected to the door lock.

3. The device according to claim 2, characterized in that The first switch is a MOS tube, a gate of the MOS tube is connected to the other end of the resistor R1, a source of the MOS tube is connected to a common ground, and a drain of the MOS tube is connected to the door lock.

4. The device according to claim 1, characterized in that The device further includes a first connection circuit, one end of which is connected to the door lock driving module, and the other end of which is connected to the door lock; the first connection circuit includes a first connector, a capacitor C1, a capacitor C2, The first pin of the first connector, one end of the capacitor C1, and one end of the capacitor C2 are connected to a power supply, and the other end of the capacitor C1 and the other end of the capacitor C2 are connected to a common ground; The second pin of the first connector is connected to the driving signal output by the door lock driving module, and the pin 2 of the first connector is also connected to the door lock.

5. The device according to claim 4, characterized in that The first connection circuit further includes a diode, an anode of the diode is connected to the second pin of the first connector, and a cathode of the diode is connected to a power source.

6. The device according to claim 1, characterized in that The device further includes a second connection circuit, one end of which is connected to the door lock detection module, and the other end of which is connected to the main control module; wherein the second connection circuit includes a second connector, a resistor R3, and a capacitor C3, One end of the resistor R3 is connected to the main control module, the other end of the resistor R3 is connected to the first pin of the second connector and one end of the capacitor C3, and the other end of the capacitor C3 is connected to the common ground; The second pin of the second connector is connected to the common ground.

7. The device according to claim 1, characterized in that The door lock detection module is a micro switch installed on the door lock.

8. A door lock control system for an automatic vending machine, characterized in that: It comprises a door lock control device and a door lock as described in any one of claims 1 to 7, wherein the door lock control device is connected to the door lock.

9. An automatic vending machine, characterized in that: Comprising the door lock control system as claimed in claim 8.

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