CN109830042B

CN109830042B - Automatic sell goods way power supply system of equipment

Info

Publication number: CN109830042B
Application number: CN201910091516.4A
Authority: CN
Inventors: 王兴平
Original assignee: Shenzhen Zhilai Science and Technology Co Ltd
Current assignee: Shenzhen Zhilai Science and Technology Co Ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2021-09-03
Anticipated expiration: 2039-01-30
Also published as: CN109830042A

Abstract

The invention relates to a goods channel power supply system of automatic vending equipment, wherein a goods channel is arranged on a goods channel bracket, and the goods channel comprises a goods shelf body and a positioning module, wherein the goods shelf body is provided with a transmission motor and a conveyor belt; when the moving module moves and stays at a set position of a goods channel, a control signal is generated to enable the positioning module to supply power to a transmission motor on a goods channel body connected with the positioning module, so that the transmission belt moves and transfers articles placed on the goods channel out of one end of the goods channel along the moving direction of the transmission belt; the mobile module determines that the mobile module is located at the set position of the cargo channel by acquiring signals sent or returned by the positioning marks arranged on the positioning module, and sends out control signals at the set position to enable the positioning module to supply power for the transmission motor connected with the mobile module. The goods channel power supply system of the automatic vending equipment has the following beneficial effects: simple, reliable and capable of flexibly changing the goods channel.

Description

Automatic sell goods way power supply system of equipment

Technical Field

The invention relates to the field of automatic vending, in particular to a goods channel power supply system of automatic vending equipment.

Background

Vending machines are commonly used for vending small items, such as beverages, snacks, etc., without a person. The user pays for the goods in a variety of ways, such as cash into the device or payment through some application, and the vending device will automatically push out or deliver the goods selected by the user after confirmation, thereby realizing vending. To accommodate the introduction of the "new retail" perspective and to meet the needs of the consumer, some vending machines place items in a single or separate space, namely an item receiving space; and a goods taking port or a goods outlet port is arranged in the other space, and the goods are taken from the goods accommodating space through a moving module (usually a moving trolley), are transported to the goods outlet port in the other space and are taken out from the goods outlet port by a user. The arrangement not only can be used for placing more articles, but also can be used for purchasing or obtaining a plurality of articles at one time, and the use of a user is more convenient. However, this arrangement has some disadvantages, because the objects are placed on the channels in the object accommodating spaces, the channels are set on channel brackets, which are set at different heights in the object accommodating spaces, and therefore, it is necessary to supply power to each channel and individually control the actions of the channels, which makes the channel power supply and control of the vending machine complicated and prone to malfunction; when the goods way needs to be changed, the wiring needs to be rewired, and the flexibility is extremely poor.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a simple and reliable goods channel power supply system of automatic vending equipment, which can flexibly change the goods channel, aiming at the defects of the prior art that the goods channel is complex, easy to break down and can not be flexibly changed.

The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a lane electrical supply system for a vending apparatus, the vending apparatus including an article receiving assembly and a control assembly, the control assembly including a movement module that moves between the article receiving assembly and the control assembly and transports an article; the goods channel is arranged on the goods channel supports which are arranged in the containing space and have different heights, the goods channel comprises a goods shelf body on which a transmission motor and a conveyor belt are arranged and a positioning module arranged on the goods channel supports, and the arrangement position of the positioning module corresponds to the arrangement position of the goods channel; when the moving module moves and stays at a set position of a goods channel, a first control signal is generated to enable the positioning module to supply power to a transmission motor on a goods channel body connected with the positioning module, so that the transmission belt moves and articles placed on the goods channel are transferred out of one end of the goods channel along the moving direction of the transmission belt;

the moving module determines that the moving module is located at a set position of the cargo channel by obtaining a signal sent or returned by a positioning mark arranged on the positioning module, and sends a first control signal to the control assembly at the set position, so that the moving module stops moving and the positioning module supplies power to a transmission motor connected with the moving module.

Still further, the positioning module comprises a housing, a position mark arranged on the surface of the housing, a second signal receiving component arranged on the housing, a circuit board arranged in the housing and a power supply connecting component; one end of the power supply connecting assembly is a connector connected with a power supply groove arranged on the goods way support, and the other end of the power supply connecting assembly is a cable which is respectively connected with the connector and is connected to the power supply input end of the circuit board; the circuit board is also provided with a power supply output end, and the power supply output end is connected with a plurality of power supply output terminals for connecting the transmission motor; and a controlled switch controlled by the second signal receiving assembly is connected in series between the power input end and the power output end, and the controlled switch is switched on when the second signal receiving assembly receives a second signal sent by the mobile module, so that the power input end and the power output end on the circuit board are communicated.

Furthermore, the moving module is further provided with a control coil or a second permanent magnet which generates a second signal and enables the second signal to act on the second signal receiving assembly, and when the control coil or the second permanent magnet stays at the set position of the cargo way, the control coil or the second permanent magnet is electrified to generate the second signal and act on the second signal receiving assembly or enable the second signal to act on the second signal receiving assembly.

Furthermore, the power supply groove comprises a strip-shaped groove body, two mutually isolated grooves are formed in the groove body, reeds which are respectively electrically connected with the power supply end in the control assembly are arranged in the grooves, and two connecting ends of the connector are respectively inserted into the grooves and are contacted with the reeds.

Furthermore, each goods way support is provided with a power supply groove penetrating through the width direction of the goods way support, and a power supply end on each power supply groove is connected to a system power supply through a power supply switch; the power switch is switched on when the mobile module sends the first control signal and is switched off when the mobile module detects that the goods on the goods channel are moved out.

Furthermore, a power supply slot is provided with a power supply switch which is controlled independently, and the switch end of the power supply switch controls the conduction or disconnection of the reed of the positive power supply voltage end or/and the reed of the negative power supply end of the power supply slot and the corresponding terminal of the system power supply.

Furthermore, the controlled switch comprises a field effect transistor, the second signal receiving assembly comprises a magnetron, the magnetron is conducted after sensing a second signal sent by the mobile module, and voltage from a power input end is applied to a grid electrode of the field effect transistor to conduct the field effect transistor, so that the power input end and the power output end on the circuit board are communicated.

Still further, the positioning mark comprises a metal sheet or a sheet-shaped permanent magnet embedded in the surface of the shell; and the mobile module is provided with a light emitting and receiving module or a magnetic induction assembly for receiving the light reflected by the positioning mark or the generated magnetic signal.

Furthermore, the control coil or the second permanent magnet is arranged on the surface of the moving module, and when the moving module stays at the set position of one cargo way, the control coil or the second permanent magnet is aligned with the position of the second signal receiving component arranged on the positioning module of the cargo way.

Furthermore, an article detection module is further arranged on the moving module, and the article detection module informs the control assembly after detecting that an article is moved out of the goods channel, so that the switched-on power switch is switched off, the circuit board is powered off, and the transmission motor on the goods channel body stops rotating.

The goods channel power supply system of the automatic vending equipment has the following beneficial effects: because the positioning module of each goods channel is provided with the positioning mark which is matched with the corresponding optical or magnetic induction component on the mobile module, the mobile module can determine the preset position of the goods channel, stay at the position and supply power to the corresponding power supply groove; the moving module can send a second signal at the position, so that the receiving assembly on the positioning module can sense the second signal and is connected with the power output end and the input end on the positioning module, and the positioning module of the cargo channel enables the transmission motor on the cargo channel to be electrified to rotate to push out or send out articles on the cargo channel, thereby realizing the power supply of the cargo channel; at other times, the motor on the cargo way is powered off and does not need to be controlled; when merging the goods way, only need with two or three goods way transmission motor's on the body power supply end connect in a positioning module can. Therefore, the device is simple and reliable and can flexibly change the goods channel.

Drawings

FIG. 1 is a schematic diagram of a vending machine in an embodiment of a power system for a product channel of the vending machine of the present invention;

FIG. 2 is a schematic view of the components of the embodiment as the mobile module moves to the article receiving assembly;

FIG. 3 is an enlarged view of a portion of FIG. 2 in the embodiment;

FIG. 4 is a schematic circuit diagram of a positioning module in one aspect of the described embodiments;

fig. 5 is a schematic structural view of the power supply slot in the embodiment.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, in the embodiment of the power supply system for the goods channel of the vending machine of the present invention, the vending machine comprises at least one goods placing component 1 and a control component 2, the control component 2 comprises a goods taking opening 21 for the user to take the goods purchased by the user and a moving module 22 for taking the goods purchased by the user from the goods placing component 1 and conveying the goods to the goods taking opening 21, generally, the moving module 22 is a moving trolley, the position for placing the goods (i.e. the goods collecting frame and the components mounted thereon) can be lifted, and the moving trolley can move linearly along the track 13 of the moving trolley; a plurality of layers of goods channel brackets 11 are arranged in the goods placing assembly 1, and a plurality of goods channels 3 for placing sold goods are placed on each layer of the goods channel brackets 11; a rail 13 for moving the moving module 22 is provided in front of the cargo way support 11, and the moving module 22 can move to the front of any cargo way 3 along the rail; the goods channel 3 is moved by a conveyor belt, so that the goods placed on the goods channel 3 move forward, when the goods move to the front end of the goods channel 3, the goods at the foremost end of the goods move out of the goods channel 3, fall downwards, enter the goods collecting frame on the moving module 22 which moves to the front of the goods channel, and are carried by the moving module 22 and sent to the goods taking port 21. In the present embodiment, the goods placing component 1 is a structure similar to a cabinet, and a large glass door is arranged at the front of the goods placing component, so that the goods placing component can be seen by a user while the goods channel 3 and the goods are enclosed in the goods placing component, and the goods placing component is convenient for the user to select. One or more of the access openings 21 may be provided so that a plurality of adjacent users can access the articles at the same time or at different access openings 21.

In the present embodiment, the power supply of the vending machine is from the control module 2, and the article receiving module 1 itself has no power supply, and only power supply slots for transmitting power supply voltage are provided, but these power supply slots can obtain power supply voltage from the control module 2 only when set conditions are met, and supply power to the goods channel 3 in the article receiving module 1 in a prescribed manner. In this embodiment, the power supply slot is an elongated slot body fixed to each lane bracket 11 of the cargo receiving assembly 1, and is generally located at the front edge (i.e., the edge near one side of the moving module 22) below the lane bracket 11; the positioning module 34 of each lane 3 provided on the lane support 11 is connected to the power supply slot to input the power supply voltage (the power supply voltage is present in the power supply slot only when the set condition is satisfied, and then the power supply voltage is applied to the drive motor on the lane). In this embodiment, the cargo way 3 comprises a shelf body 33 on which a transmission motor 31 and a conveyor belt 32 are arranged, and a positioning module 34 arranged on the cargo way bracket 11, wherein the positioning module 34 supplies power to the transmission motor 31 on the cargo way 3 through a cable; referring to fig. 3, fig. 3 shows the position of the trunk body 33 and the positioning module 34 when they are mounted on the trunk support 11. The positioning module 34 is disposed at a position corresponding to the position of the trunk body 33, for example, the positioning module 34 is disposed on the trunk support 11 at the starting position or the middle position of the trunk body 33; usually, the positioning module 34 is fixed on the cargo way support 11 by a hook on its back or its edge; when the moving module 22 moves and stays at a set position of the cargo way 3 (usually, the moving module 22 aligns with or aligns with the positioning module 34), the component disposed on the moving module 22 will generate a control signal to make the positioning module 34 power the driving motor 31 on the cargo way body 33 connected with the positioning module 34, so that the driving belt 32 moves and transfers the object placed on the cargo way 3 out of one end of the cargo way 3 along the moving direction of the driving belt 31; the moving module 22 determines that it is at the set position of the cargo way 3 by obtaining the signal sent or returned by the positioning mark 342 arranged on the positioning module 34, and sends a control signal at the set position to enable the positioning module 34 to supply power to the transmission motor 31 connected with it. Specifically, in this embodiment, when the moving module 22 moves and stays at a set position of a cargo way 3, the moving module 22 generates a first control signal or a first control signal generated by the moving module 22 is sensed by the positioning module 34 of the cargo way 3 or senses the first control signal greater than a set threshold, so that the positioning module 34 supplies power to the driving motor 31 on the cargo way body 33 connected with the positioning module 34, and the driving belt 32 moves and transfers the articles placed on the cargo way 3 out of one end of the cargo way 3 along the moving direction of the driving belt 32; the moving module 22 determines that it is at the set position of the cargo way 3 by obtaining the signal sent or returned by the positioning mark 342 arranged on the positioning module 34, and sends a first control signal back to the control component 2 at the set position, so that the moving module 22 stops moving and the positioning module 34 supplies power to the transmission motor connected with the moving module. For the present embodiment, since the lane definition is performed on the lane patrol which has been performed by the moving module 22 in advance, the system knows how many lanes 3 are on the current lane support 11 and the position of each lane 3. When the moving module 22 moves to the position and senses the signal sent by the positioning mark 342, the moving module 22 generates a first control signal, which can be used to control a plurality of components, for example, the first control signal can be transmitted back to the control component 2, so that the moving module 22 is controlled to stop moving, and a power switch corresponding to a power slot installed on the cargo way support 11 where the cargo way 3 is located is turned on, so that the power slot is powered on; in some cases (for example, when a control coil for generating the first magnetic field is provided on the moving module 22), the control coil may be controlled to be energized or not energized. Fig. 4 shows the general structure of the positioning module 34, and basically, the moving module 22 is also provided with components substantially as shown in fig. 3, but in a different manner from other components.

Generally speaking, in the present embodiment, two sets of sensing assemblies (usually magnetic sensing assemblies) respectively disposed on the moving module 22 and the positioning module 34 respectively sense signals and perform corresponding actions when the moving module 22 is in the set position, so as to power on the cargo way 3, and further, the articles on the cargo way 3 are moved due to the power on the cargo way 3. In one case, the positioning mark 342 is a permanent magnet, and the magnetron on the moving module 22 is turned on after sensing its magnetic field, and sends a first control signal to stop the moving module 22 and power up the current power supply slot (i.e. the power supply slot where the current cargo way 3 is located or the power supply slot corresponding to the height of the current article collecting frame) through the control component 2; and then when another magnetron on the positioning module is conducted after sensing the magnetic field emitted by the second permanent magnet on the moving module 22, the driving motor 31 of the goods passage 3 is powered on to rotate, so that the goods move. When the moving module 22 detects that an article enters the article collecting box (indicating that the article is moved out of the cargo channel 3), a control signal is output to the control module 2, so that the corresponding power switch is turned off, the corresponding power slot is powered off, and then the cargo channel 3 loses power, and the driving motor 31 stops rotating. It goes without saying that the two pairs of magnetic induction assemblies are located in correspondence with each other, i.e. the magnetron on the moving module 22 corresponds to the permanent magnet on the positioning module 34, and the magnetron on the positioning module 34 corresponds to the permanent magnet on the moving module 22.

As shown in fig. 4, in the present embodiment, the positioning module 34 includes a housing 341, a position mark 342 disposed on a surface of the housing 341, a control signal receiving component 343 disposed on the housing 341, a circuit board 344 disposed in the housing 34, and a power plug (not shown in the figure); one end of the power plug is a connector connected with a power groove arranged on the goods way support 11, and the other end of the power plug is a cable which is respectively connected with the connector and connected to the power input end of the circuit board; the circuit board 344 is further provided with a power output end, and the power output end is connected with a plurality of power output terminals for connecting the transmission motor 31; a controlled switch controlled by the control signal receiving component 343 is connected in series between the power input end and the power output end, and the controlled switch is turned on when the control signal receiving component 343 receives a control signal sent by the moving module 22, so as to supply power to the transmission motor 31. Specifically, in this embodiment, the controlled switch includes a field effect transistor, and the control signal receiving assembly 343 includes a magnetron which is turned on when sensing the magnetic field emitted from the mobile module 22, and a voltage from a power input terminal is applied to a gate of the field effect transistor to turn on the field effect transistor, so that the power input terminal and the power output terminal on the circuit board 344 are communicated.

Further, in the present embodiment, the position mark 342 includes a metal sheet or a sheet-shaped permanent magnet embedded in the surface of the housing 341; the mobile module 22 is provided with a light emitting and receiving module or a magnetic induction component for receiving the light reflected by the positioning mark 342 or the generated magnetic signal, and when the sensed magnetic field strength is the maximum or the received reflected optical signal is the strongest, that is, when the sensing component on the mobile module 22 is aligned with or aligned with the positioning mark 342, it is determined that the mobile module 22 is located at the set position of the cargo way. By the number of the positioning marks of the goods passage passing through or passing through the current traveling diagram of the mobile module 22, the system can determine whether the current goods passage is the target goods passage for the current goods taking, if so, the mobile module 22 is controlled to stay at the position, and the next operation is performed.

In this embodiment, the moving module 22 may further include a control coil (not shown) for generating a first magnetic field and applying the first magnetic field to the control signal receiving assembly 343, as an alternative to the permanent magnet, the control coil is more convenient for controlling the existence of the magnetic field of the controller. When the moving module 22 stays at the set position of the cargo way (i.e. when the sensing component is aligned with or aligned with the positioning mark 342 and stays), the control coil is energized to generate the second magnetic field, and the second magnetic field acts on the control signal receiving component 343 through the space between the moving module 22 and the cargo way support 11. As mentioned above, in this embodiment, the control signal receiving component 343 is a magnetron, which will be turned on in a magnetic field environment with a certain intensity, and applies the voltage at the power input end on the circuit board to the gate of the controlled switch fet connected thereto, so that the controlled switch is turned on, and the power input end and the power output end on the circuit board are connected, and further the power voltage is connected to the power output terminal through the controlled switch, so as to supply power to the transmission motor connected to the power voltage output terminal, and rotate the transmission motor. In some cases, the control coil is disposed on the surface of the moving module 22, and is installed at a position such that when the moving module stays at a set position of a cargo way, the control coil is aligned with a position of the control signal receiving assembly 343 disposed on the positioning module 34 of the cargo way. In other cases, the control coil may be disposed on a telescopic module (not shown), which extends a set distance towards the direction of the cargo way when the control coil is powered on, and retracts when the control coil is powered off.

In this embodiment, the control coil is powered off to stop generating a magnetic field, so that the control signal receiving assembly 343 is no longer in a magnetic field environment with a set strength, and thus the control signal receiving assembly 343 is no longer turned on, and thus the controlled switch is also no longer turned on, the power input end and the power output end on the circuit board 344 are disconnected, and thus the transmission motor 31 on the cargo way body 33 is powered off to stop rotating. The condition that the control coil is powered off is that the article detection module detects that an article is pushed out from the cargo way and enters the article collection frame of the moving module 22, that is, the moving module 22 is further provided with an article detection module (not shown in the figure), and the article detection module interrupts the control signal (i.e., powers off the control coil) after detecting that an article is moved out from the cargo way, so that the control signal receiving assembly is disconnected, and the transmission motor on the cargo way body stops rotating. In this embodiment, the article detection module may determine the pushing of the article by acquiring an image, or may determine the pushing of the article by an infrared light curtain. So long as it can stably and quickly determine that there is an article pushed out of the goods passage and into the article collecting frame. In this embodiment, when the article detection unit obtains an image from a camera and determines the image, the camera is usually disposed on a side of the article collecting frame away from the cargo channel; when the infrared light curtain inspection is adopted, a light emitting and receiving tube for generating the infrared light curtain is generally disposed on a side near the cargo passage.

As shown in fig. 5, in this embodiment, the power supply slot 9 includes an elongated slot body 91, two grooves (92, 93) are disposed in the slot body 91 and are separated from each other, a spring (not shown) is disposed in each groove (92, 93) and is electrically connected to a power supply end of the control assembly, and two connection ends of the connector in the positioning module 34 are inserted into the grooves (92, 93) and are in contact with the spring. The reeds in the grooves (92, 93) are electrically connected to the positive and negative terminals of the power supply, respectively, so that the two connection terminals of the connector are inserted into the grooves to ensure correct polarity. Meanwhile, as shown in fig. 5, if the positions allow, a plurality of connectors can be connected in the power supply slots, that is, the power supply connectors in the positioning modules 34 on one cargo way support 11 can be connected to one power supply slot 9. In this embodiment, a power supply slot 9 is provided on one of the cargo way supports 11, and a power switch is provided between the spring (usually a positive electrode or both electrodes) of each power supply slot 9 and the power end of the control assembly 2, the power switch being turned on when the mobile module 22 stays at a set position of one of the cargo ways 3. When the mobile module 22 stays at a set position of one of the lanes 3, the control module 2 controls the power switch to be turned on, and the power switch is powered on for the power slot mounted or fixed on the lane support 11 where the lane 3 is located, and at this time, the other power slots 9 (for example, the power slot 9 arranged on the upper lane support 11 or the lower lane support 11) are not powered on. When the mobile module 22 moves or stays at the initial position, there is no output of the power supply voltage from all the power supply slots 9, and the connection between the reed and the power supply terminal in the power supply slot 9 is disconnected by the power switch. In this embodiment, the power switch may be a contact or an electronic relay controlled by the voltage output from the control unit 2.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A goods channel power supply system of a vending machine, the vending machine comprising an article receiving assembly and a control assembly, the control assembly comprising a moving module that moves between the article receiving assembly and the control assembly and transports articles; the goods channel is arranged on goods channel supports with different heights arranged in the space of the article containing assembly, the goods channel comprises a goods shelf body provided with a transmission motor and a conveyor belt and a positioning module arranged on the goods channel supports, and the arrangement position of the positioning module corresponds to the arrangement position of the goods channel;

when the moving module moves and stays at a set position of a goods channel, a first control signal and a second control signal are generated, so that the positioning module supplies power to a transmission motor on a goods channel body connected with the positioning module, the conveyor belt moves, and articles placed on the goods channel are transferred out of one end of the goods channel along the moving direction of the conveyor belt;

the positioning module comprises a shell, a position mark arranged on the surface of the shell, a second signal receiving assembly arranged on the shell, a circuit board arranged in the shell and a power supply connecting assembly; one end of the power supply connecting assembly is a connector connected with a power supply groove arranged on the goods way support, and the other end of the power supply connecting assembly is a cable which is respectively connected with the connector and is connected to the power supply input end of the circuit board; the circuit board is also provided with a power supply output end, and the power supply output end is connected with a plurality of power supply output terminals for connecting the transmission motor; a controlled switch controlled by the second signal receiving assembly is connected in series between the power input end and the power output end, and the controlled switch is conducted when the second signal receiving assembly receives a second control signal sent by the mobile module, so that the power input end and the power output end on the circuit board are communicated, and power is supplied to a transmission motor on a cargo channel body connected with the power input end and the power output end;

the moving module determines that the moving module is located at a set position of the cargo channel by acquiring signals sent or returned by positioning marks arranged on the positioning module, sends a first control signal at the set position to return to the control assembly, generates or sends a second control signal to be received by the second signal receiving assembly, so that the moving module stops moving and supplies power to a transmission motor connected with the moving module.

2. The system of claim 1, wherein the moving module further comprises a control coil or a second permanent magnet for generating and applying a second signal to the second signal receiving assembly, and when the moving module stays at the predetermined position of the goods channel, the control coil or the second permanent magnet is energized to generate and apply the second signal to the second signal receiving assembly or apply the second signal to the second signal receiving assembly.

3. The vending machine power supply system of claim 2, wherein the power supply slot comprises an elongated slot body, two mutually isolated grooves are formed in the slot body, reeds electrically connected with the power supply end of the control assembly are arranged in the grooves, and two connection ends of the connector are inserted into the grooves and are in contact with the reeds.

4. The system of claim 3, wherein each lane bracket is provided with a power slot extending across the width thereof, and the power end of each slot is connected to the system power source via a power switch; the power switch is switched on when the mobile module sends the first control signal and is switched off when the mobile module detects that the goods on the goods channel are moved out.

5. The vend power supply system of vending apparatus according to claim 4, wherein one power supply slot has a separately controlled power switch, the switching end of said power switch controlling the conduction or disconnection of the reed of the positive power supply voltage terminal or/and the negative power supply terminal of said power supply slot to the corresponding terminal of the system power supply.

6. The vending machine power supply system of claim 5, wherein the controlled switch comprises a field effect transistor, the second signal receiving assembly comprises a magnetron, the magnetron is turned on when sensing the second signal from the mobile module, and a voltage from a power input is applied to a gate of the field effect transistor to turn on the field effect transistor so that the power input and the power output on the circuit board are communicated.

7. The vending machine power supply system of any of claims 1-6, wherein the positioning indicia comprise a sheet metal or sheet permanent magnet embedded in a surface of the housing; and the mobile module is provided with a light emitting and receiving module or a magnetic induction assembly for receiving the light reflected by the positioning mark or the generated magnetic signal.

8. The system of claim 7, wherein the control coil or the second permanent magnet is disposed on a surface of the mobile module, and the control coil or the second permanent magnet is aligned with a position of a second signal receiving assembly disposed on a positioning module of a channel when the mobile module stays at a set position of the channel.

9. The vending machine power supply system of claim 8, wherein the moving module further comprises an article detection module, and the article detection module notifies the control module when detecting that an article is removed from the channel, so that the power switch is turned off, the circuit board is powered off, and the driving motor on the channel body stops rotating.