CN220273534U - Mahjong machine and power supply driving system thereof - Google Patents

Abstract

The utility model provides a mahjong machine and a power supply driving system thereof, comprising: the alternating current-to-direct current conversion module converts commercial power into direct current power to supply power for each module in the mahjong machine; the control module generates a control signal; the display module is controlled by the control module to display information; and the motor driving module is controlled by the control module to generate a motor driving signal. The mahjong machine and the power supply driving system thereof adopt a direct current power supply mode, so that an industrial frequency transformer is avoided, the volume can be effectively reduced, and the cost is reduced; meanwhile, the plug wire can work without plug wires under the condition of being equipped with a battery; when the universal adapter is adopted, the product specification of the outlet and the internal pin does not need to be distinguished, so that the convenience of production and use is improved; the low-voltage synchronous motor is adopted to replace the high-voltage synchronous motor, so that the use and maintenance safety is improved, meanwhile, a relay, a silicon controlled rectifier and a starting capacitor (or a safety capacitor) are omitted, the size is further reduced, the cost is reduced, and each motor does not need to be matched with the capacitor one by one.

Description

Mahjong machine and power supply driving system thereof

Technical Field

The utility model relates to the field of motors, in particular to a mahjong machine and a power supply driving system thereof.

Background

Along with the continuous improvement of living standard, people pay more attention to leisure and recreation, and the automatic mahjong machine gradually goes into thousands of households. A plurality of motors (most commonly 14) are generally used in an automatic mahjong machine for realizing the functions of large turntables, conveying, drawing, pushing, lifting and the like. As shown in fig. 1, the power supply driving system 1 of the existing mahjong machine is characterized in that a power supply is 220V and 50Hz mains supply, 220V alternating current power supply is converted into 110V alternating current power supply and 12V alternating current power supply through a power frequency transformer 11, wherein the 12V alternating current power supply generates 5V voltage through a rectifying and filtering voltage reduction module 12 for use by a control display module 13; the 110V alternating current power supply supplies power to the motor 15 through a switch formed by a relay or a controllable silicon 14, and the on and off of the relay or the controllable silicon 14 is controlled by a control signal output by the control display module 13; the motor 15 is a 110V claw pole permanent magnet synchronous motor, a starting capacitor (or a safety capacitor) 16 is arranged outside, the motor 15 rotates correspondingly when the switch is on, and the motor 15 stops rotating correspondingly when the switch is off.

The adoption of the 110V claw pole type permanent magnet synchronous motor has the advantages of simple control, but in order to drive the 110V claw pole type permanent magnet synchronous motor, a power frequency transformer 11 is needed to convert 220V alternating current power supply into 110V alternating current power supply, and the power frequency transformer has large volume and high cost; the voltage of the 110V alternating current power supply is higher than the safe working voltage, so that certain potential safety hazards are brought to the operation and maintenance of the automatic mahjong machine; the claw pole type permanent magnet synchronous motor with high voltage (110V) needs a relay or a silicon controlled rectifier 14 as a switch, and a capacitor (or a safety capacitor) 16 is required to be started, so that the cost is further increased, and the capacitor matching is complex; since different countries use different mains voltage and frequency (220V, 50Hz in this example) specifications, the export product needs to use different transformers and motors, which is inconvenient to produce and use. In addition, the control display module 13 needs to be configured with additional low-voltage direct current power supply through the rectifying and filtering voltage-reducing module 12, and the structure is complex and the cost is high.

Therefore, how to reduce the cost and volume and improve the safety and convenience of the power supply driving system of the mahjong machine has become one of the technical problems to be solved urgently by those skilled in the art.

It should be noted that the foregoing description of the background art is only for the purpose of facilitating a clear and complete description of the technical solutions of the present application and for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background section of the present application.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a mahjong machine and a power supply driving system thereof, which are used for solving the problems of high cost, large volume, poor safety, poor convenience and the like of the power supply driving system of the mahjong machine in the prior art.

To achieve the above and other related objects, the present utility model provides a power supply driving system for a mahjong machine, the power supply driving system for a mahjong machine at least comprising:

the alternating current-to-direct current conversion module receives the commercial power and converts the commercial power into a direct current power supply to supply power for each module in the mahjong machine;

the control module generates a control signal;

the display module is connected with the output end of the control module and is used for displaying information under the control of the control module;

and the motor driving module is connected with the output end of the control module and is controlled by the control module to generate a motor driving signal.

Optionally, the control module and the display module are powered by a first direct current power supply, and the motor driving module is powered by a second direct current power supply; the first direct current power supply is smaller than the second direct current power supply.

More optionally, the first dc power source is not greater than 5.5V and the second dc power source is not greater than 40V.

More optionally, the ac-dc conversion module includes a power adapter, and the power adapter converts the mains supply into the first dc power supply and the second dc power supply.

More optionally, the mahjong machine power supply driving system further comprises an energy storage module and a direct current-to-direct current module; the energy storage module provides a direct current power supply; the direct current-to-direct current module is connected to the output end of the energy storage module and converts the direct current power supply output by the energy storage module.

More optionally, the dc-dc module is a buck unit or a boost unit.

To achieve the above and other related objects, the present utility model also provides a mahjong machine including at least: the mahjong machine comprises a shell, n motors and a power supply driving system of the mahjong machine; each motor and the mahjong machine power supply driving system are arranged in the shell, and each motor is connected to the output end of the motor driving module and is controlled to operate by the motor driving module respectively; wherein n is a natural number of 2 or more.

Optionally, the motor is a claw pole synchronous motor.

More optionally, the motor driving module includes a driving circuit board, peripheral devices and n driving chips corresponding to the motors one by one; each driving chip and the peripheral device are arranged on the driving circuit board, and the peripheral device is connected with the corresponding driving chip.

More optionally, the motor driving module includes a driving circuit board, a peripheral device and n power switching tubes corresponding to the motors one by one, and each power switching tube and the peripheral device are arranged on the driving circuit board; each motor comprises a motor body and a driving chip, and the driving chip is arranged on or in the corresponding motor body;

the positive electrode of each motor is connected with the positive electrode of the corresponding direct current power supply, and the negative electrode of each motor is connected with the negative electrode of the corresponding direct current power supply through the corresponding power switch tube; the peripheral device is connected with the corresponding driving chip.

As described above, the mahjong machine and the power supply driving system thereof have the following beneficial effects:

1. the mahjong machine and the power supply driving system thereof adopt a direct current power supply mode, so that an industrial frequency transformer is avoided, the volume can be effectively reduced, and the cost is reduced; meanwhile, the plug wire can work without the plug wire under the condition of being equipped with a battery.

2. When the mahjong machine and the power supply driving system thereof adopt the universal adapter, the product specification of the outlet and the internal pin is not required to be distinguished, and the convenience of production and use is improved.

3. The mahjong machine and the power supply driving system thereof adopt the low-voltage synchronous motor to replace the high-voltage synchronous motor, so that the use and maintenance safety is improved, meanwhile, a relay, a silicon controlled rectifier and a starting capacitor (or a safety capacitor) are omitted, the volume is further reduced, and the cost is reduced; because no starting capacitor (or safety capacitor) exists, the capacitors are not required to be matched one by one for each motor.

Drawings

Fig. 1 is a schematic diagram showing the structure of a power supply driving system of a mahjong machine in the prior art.

Fig. 2 shows a schematic structure of a power supply driving system of the mahjong machine.

Fig. 3 is a schematic view showing the construction of the mahjong machine according to the present utility model.

Fig. 4 is a schematic diagram showing a structure and connection between a motor driving module and a motor according to the present utility model.

Fig. 5 is a schematic diagram showing another structure and connection between the motor driving module and the motor according to the present utility model.

Description of element reference numerals

1. Power supply driving system of mahjong machine

11. Power frequency transformer

12. Rectifying, filtering and voltage reducing module

13. Control display module

14. Relay or thyristor

15. Motor with a motor housing

16. Start capacitor (or safety capacitor)

2. Power supply driving system of mahjong machine

21. AC-DC conversion module

211. Power adapter

212. Energy storage module

213. Step-down unit

22. Control module

23. Display module

24. Motor driving module

241. Driving circuit board

242. Driving chip

3. Motor with a motor housing

31. Motor body

32. Driving chip

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model.

Please refer to fig. 2-5. It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present utility model by way of illustration, and only the components related to the present utility model are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex.

As shown in fig. 2, the present utility model provides a mahjong machine power supply driving system 2, the mahjong machine power supply driving system 2 comprising:

an alternating current-to-direct current conversion module 21, a control module 22, a display module 23 and a motor driving module 24.

As shown in fig. 2, the ac-dc conversion module 21 receives the commercial power (the commercial power voltage and frequency specification of different countries are different and determined according to different countries), and converts the commercial power into a dc power to supply power to each module in the mahjong machine. The control module 22 obtains a dc power supply from the ac-dc conversion module 21, and generates a control signal. The display module 23 obtains a dc power supply from the ac-dc conversion module 21, and is connected to the output end of the control module 22, and is controlled by the control module 22 to display information. The motor driving module 24 is connected to the output end of the control module 22, and is controlled by the control module 22 to generate a motor driving signal.

As shown in fig. 2, the ac-dc conversion module 21 is configured to convert an ac power source into a dc power source, where the number of the dc power sources obtained by conversion is determined according to the number of dc power sources required by each module in the mahjong machine; in this embodiment, the control module 22 and the display module 23 adopt the same dc power supply, so the ac-dc conversion module 21 outputs two paths of dc power supplies, wherein a first dc power supply supplies power to the control module 22 and the display module 23, a second dc power supply supplies power to the motor driving module 24, and the first dc power supply is smaller than the second dc power supply; in this embodiment, the first direct current power supply is used as a logic level and is not greater than 5.5V, including but not limited to 5V; the second direct current power supply is used for supplying power to the motor with the voltage of not more than 40V, including but not limited to 24V; the specific voltage value may actually need to be configured. When the control module 22 and the display module 23 adopt different dc power sources, the ac-dc conversion module 21 needs to output three dc power sources correspondingly; when a module requiring other dc power is provided in the mahjong machine, the ac-dc conversion module 21 needs to be configured with a corresponding dc power, which is not described herein.

Specifically, as shown in fig. 2, as an example, the ac-dc conversion module 21 includes a power adapter 211, and the power adapter 211 converts the utility power into the first dc power 5V and the second dc power 24V. The power adapter 211 may convert the commercial power into a first dc power or a second dc power through devices, and then boost or buck to obtain another dc power; the power adapter 21 can also convert the commercial power into two paths through devices to obtain a first direct current power supply and a second direct current power supply; any adaptor structure capable of providing the direct current power supply required by the mahjong machine is suitable for the utility model, and is not limited by the embodiment.

It should be noted that, if the power adapter 211 is a universal adapter of 110V to 220V, there is no need to distinguish between the product specifications of the outlet and the internal pin, i.e. all the commercial power is applicable.

Specifically, as shown in fig. 2, as another example, the ac-dc conversion module 21 further includes an energy storage module 212 and a dc-dc conversion module; the energy storage module 212 provides a dc power source, and in this example, the energy storage module 2212 is implemented by a battery; the direct current-to-direct current module is connected to the output end of the energy storage module 212 and converts the direct current power supply output by the energy storage module 212; in this way, the mahjong machine is powered by the energy storage module 212 under the condition that the commercial power is powered off or the power is inconvenient to plug. The direct current-to-direct current module is a buck unit or a boost unit. In this example, the dc-dc conversion module is implemented by a voltage reduction unit 213, the energy storage module 212 provides the second dc power supply 24V, and the voltage reduction unit 213 reduces the voltage of the second dc power supply 24V to obtain the first dc power supply 5V. In practical use, the dc-dc conversion module may be configured as a boost unit, and the energy storage module 212 provides the first dc power supply 5V, and the second dc power supply is obtained by boosting, which is not described in detail herein.

As shown in fig. 2, the control module 22 uses the first dc power supply 5V to supply power, and is configured to generate control signals (control signals for controlling motor driving and control signals for controlling display) according to internal feedback signals and/or external instructions, where the control signals include, but are not limited to, an enable signal, a switch control signal, and a reset signal, which are not described in detail herein.

As shown in fig. 2, the display module 23 is powered by the first dc power source 5V and controlled by the control module 22; the display module 23 includes, but is not limited to, LED lamps, and any device that can be used for displaying the mahjong machine is suitable, and will not be described in detail herein.

As shown in fig. 2, the motor driving module 24 is controlled by the control module 22 to provide driving signals for the motor; the motor is operated when the motor driving module 24 provides a driving signal, and the motor is stopped when the motor driving module 24 does not provide a driving signal.

Therefore, the mahjong machine power supply driving system realizes DC conversion, does not need a power frequency transformer, has small volume and low cost, adopts low-voltage power supply to the motor, and can effectively improve the safety of use and maintenance.

As shown in fig. 3, the present utility model also provides a mahjong machine including: a housing (not shown in the figure), n motors 3 and a mahjong machine power supply driving system 2; each motor 3 and the mahjong machine power supply driving system 2 are arranged in the shell, each motor 3 is connected to the output end of the motor driving module 24, and is controlled to operate by the motor driving module 24.

The number n of motors is set as needed, and generally n is a natural number of 2 or more, and is set as 14 as an example.

As shown in fig. 3, in the present embodiment, the motor 3 is configured as a claw pole synchronous motor in a simplified control manner. Meanwhile, the motor 3 is a low-voltage motor (the driving voltage is not more than 40V and less than 110V), and a starting capacitor (or a safety capacitor) is not required to be configured.

As shown in fig. 4, as an example, the motor driving module 24 includes a driving circuit board 241, peripheral devices (not shown), and n driving chips 242 (only a single path is shown) corresponding to each motor 3. Each driving chip 242 and the peripheral devices are disposed on the driving circuit board 241, and the peripheral devices are connected with the corresponding driving chips 242, so as to realize a complete driving function. The driving chip 242 includes, but is not limited to, a logic circuit and an inverter circuit, and converts the second dc power supply 24V into an ac driving signal based on the control of the control module 22; the peripheral devices include, but are not limited to, decoupling capacitors, anti-high voltage diodes, and the like; and are not described in detail herein. At this time, the motor 3 receives an ac drive signal and operates based on the ac drive signal.

As another example, as shown in fig. 5, the motor driving module 24 includes a driving circuit board 241, peripheral devices (not shown) and n power switching tubes Q corresponding to the motors one by one, and each power switching tube Q and the peripheral devices are disposed on the driving circuit board 241; in this example, the power switch Q is implemented with an NMOS transistor. Each motor 3 comprises a motor body 31 and a driving chip 32, and the driving chip 32 is arranged on the corresponding motor body 31 (hung outside) or in the corresponding motor body 31. Wherein the peripheral devices are connected with the corresponding driving chip 32, and the peripheral devices include, but are not limited to, decoupling capacitors, high voltage protection diodes and the like; and are not described in detail herein. The positive electrode of each motor 3 corresponds to the positive electrode of the direct current power supply (second direct current power supply 24V), and the negative electrode is connected with the negative electrode of the corresponding direct current power supply (second direct current power supply 24V) through the corresponding power switch tube Q; the positive pole of the direct current power supply, the motor, the power switch tubes and the negative pole of the direct current power supply form a power supply to ground passage, each power switch tube is controlled by the control module 22, when the power switch tube is conducted, the motor 3 receives a direct current driving signal (the second direct current power supply 24V), and the motor operates; when the power switch tube is turned off, the motor 3 is powered off and stops working. At this time, the motor 3 is a dc motor, and can be operated by applying dc power, and the driving chip 32 includes, but is not limited to, a logic circuit and an inverter circuit, and converts the second dc power supply 24V into an ac driving signal to drive the motor body 31 to operate.

As an example, the mahjong machine further includes entertainment tools such as mahjong tiles and dice, which are not described in detail herein.

The mahjong machine adopts the low-voltage motor, so that the safety is high; and the starting capacitor (or the safety capacitor), the relay or the controllable silicon are not needed, and the volume and the cost are small.

In summary, the present utility model provides a mahjong machine and a power supply driving system thereof, including: the alternating current-to-direct current conversion module receives the commercial power and converts the commercial power into a direct current power supply to supply power for each module in the mahjong machine; the control module generates a control signal; the display module is connected with the output end of the control module and is used for displaying information under the control of the control module; and the motor driving module is connected with the output end of the control module and is controlled by the control module to generate a motor driving signal. The mahjong machine and the power supply driving system thereof adopt a direct current power supply mode, so that an industrial frequency transformer is avoided, the volume can be effectively reduced, and the cost is reduced; meanwhile, the plug wire can work without plug wires under the condition of being equipped with a battery; when the universal adapter is adopted, the product specification of the outlet and the internal pin does not need to be distinguished, so that the convenience of production and use is improved; the low-voltage synchronous motor is adopted to replace the high-voltage synchronous motor, so that the use and maintenance safety is improved, meanwhile, a relay, a silicon controlled rectifier and a starting capacitor (or a safety capacitor) are omitted, the size is further reduced, and the cost is reduced; because no starting capacitor (or safety capacitor) exists, the capacitors are not required to be matched one by one for each motor. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. The power supply driving system of the mahjong machine is characterized by at least comprising:

the alternating current-to-direct current conversion module receives the commercial power and converts the commercial power into a direct current power supply to supply power for each module in the mahjong machine;

the control module generates a control signal;

the display module is connected with the output end of the control module and is used for displaying information under the control of the control module;

and the motor driving module is connected with the output end of the control module and is controlled by the control module to generate a motor driving signal.

2. The mahjong machine power driving system according to claim 1, wherein: the control module and the display module are powered by a first direct current power supply, and the motor driving module is powered by a second direct current power supply; the first direct current power supply is smaller than the second direct current power supply.

3. The mahjong machine power driving system according to claim 2, wherein: the first direct current power supply is not more than 5.5V, and the second direct current power supply is not more than 40V.

4. A mahjong machine power driving system according to claim 2 or 3 and wherein: the alternating current-to-direct current conversion module comprises a power adapter, and the power adapter converts commercial power into the first direct current power supply and the second direct current power supply.

5. The mahjong machine power driving system according to claim 4, wherein: the mahjong machine power supply driving system also comprises an energy storage module and a direct current-direct current conversion module; the energy storage module provides a direct current power supply; the direct current-to-direct current module is connected to the output end of the energy storage module and converts the direct current power supply output by the energy storage module.

6. The mahjong machine power driving system according to claim 5, wherein: the direct current-to-direct current module is a buck unit or a boost unit.

7. A mahjong machine, characterized in that it comprises at least: a housing, n motors, and a mahjong machine power supply driving system as set forth in any one of claims 1-6; each motor and the mahjong machine power supply driving system are arranged in the shell, and each motor is connected to the output end of the motor driving module and is controlled to operate by the motor driving module respectively; wherein n is a natural number of 2 or more.

8. The mahjong machine according to claim 7, wherein: the motor is a claw pole type synchronous motor.

9. The mahjong machine according to claim 7 or 8, wherein: the motor driving module comprises a driving circuit board, peripheral devices and n driving chips which are in one-to-one correspondence with the motors; each driving chip and the peripheral device are arranged on the driving circuit board, and the peripheral device is connected with the corresponding driving chip.

10. The mahjong machine according to claim 7 or 8, wherein: the motor driving module comprises a driving circuit board, peripheral devices and n power switching tubes which are in one-to-one correspondence with the motors, and the power switching tubes and the peripheral devices are arranged on the driving circuit board; each motor comprises a motor body and a driving chip, and the driving chip is arranged on or in the corresponding motor body;

the positive electrode of each motor is connected with the positive electrode of the corresponding direct current power supply, and the negative electrode of each motor is connected with the negative electrode of the corresponding direct current power supply through the corresponding power switch tube; the peripheral device is connected with the corresponding driving chip.