Mahjong machine control device and mahjong machine

By using Hall effect sensors to detect mahjong tiles in mahjong machines, the problem of weakened sensing signals from infrared reflective photoelectric sensors has been solved, resulting in higher sensitivity, lower maintenance frequency, and extended service life of the mahjong machines.

CN223504805UActive Publication Date: 2025-11-04HANGZHOU JUXIN ELECTRONICS CO LTD
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Patent Information

Application Number
CN202421938744.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-09
Publication Date
2025-11-04
Estimated Expiration
2034-08-09

AI Technical Summary

Technical Problem

The infrared reflective photoelectric sensors in existing fully automatic mahjong machines experience weakened sensing signals over time and are easily affected by dust, leading to increased maintenance frequency and a poor user experience.

Method used

A Hall sensor is used instead of an infrared reflective photoelectric sensor. The impact of the mahjong tile moves the sensing part to the detection range of the Hall sensor, generates a Hall signal, and sends it to the main control chip to realize the stacking of the mahjong tile.

Benefits of technology

It improves the sensitivity and stability of the mahjong machine, reduces the number of repairs, extends the service life of the mahjong machine, and lowers maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a control device of a mahjong machine and the mahjong machine, the control device is arranged at a tile outlet of a tile conveying channel corresponding to a target machine head of the mahjong machine, the control device comprises a Hall sensor and a corresponding swing structure, the swing structure comprises a swing part and a sensing part, and the sensing part is arranged on the Hall sensor. The swinging part is at least provided with a first end and a second end which are opposite in direction, the sensing part is fixed at the first end of the swinging part, and the second end of the swinging part drives the sensing part at the first end of the swinging part to move to the detection range of the input end of the Hall sensor through impact of mahjong tiles conveyed out of the tile outlet; the output end of the Hall sensor is connected with a main control chip of the mahjong machine, and the input end of the Hall sensor generates a Hall signal after detecting the sensing part and sends the Hall signal to the main control chip.
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Description

Technical Field

[0001] This application relates to the field of entertainment equipment, and more specifically, to a control device for a mahjong machine and a mahjong machine. Background Technology

[0002] In existing fully automatic mahjong machines, the four-sided machine head typically uses a light-controlled detector to check if there are mahjong tiles present, thus completing the tile arrangement process. Most commercially available light-controlled detectors employ infrared reflective photoelectric sensors for detection. When a mahjong tile reaches the tile holder on the machine head, the infrared reflective photoelectric sensor generates a signal through reflection from the tile's surface, thereby arranging the tile.

[0003] However, the infrared emission signal of infrared reflective photoelectric sensors decays over time, weakening the sensing signal and requiring professional readjustment of the adjustable resistor. Additionally, dust accumulation on mahjong machines after prolonged use also reduces sensitivity, necessitating professional cleaning and providing an unpleasant user experience while increasing the frequency of maintenance. Utility Model Content

[0004] The purpose of this application is to provide a control device and a mahjong machine for detecting mahjong tiles using Hall effect sensors, thereby completing the placement of mahjong tiles, reducing the number of maintenance operations of the mahjong machine, and extending the lifespan of the mahjong machine.

[0005] In a first aspect, this application provides a control device for a mahjong machine. The control device is arranged at the card dispensing port of the card feeding channel corresponding to the target head of the mahjong machine. The control device includes a Hall sensor and a corresponding swing structure. The swing structure includes a swing part and a sensing part. The swing part has at least a first end and a second end with opposite directions. The sensing part is fixed to the first end of the swing part. The second end of the swing part is moved to the detection range of the sensing part on the first end of the swing part by the impact of the mahjong card delivered from the card dispensing port. The output end of the Hall sensor is connected to the main control chip of the mahjong machine. After the input end of the Hall sensor detects the sensing part, it generates a Hall signal and sends it to the main control chip.

[0006] Preferably, the control device further includes a sensing circuit board, with a Hall sensor integrated on the main body of the sensing circuit board. The main body of the circuit board also integrates a first resistor, with a first end of the first resistor connected to the output end of the Hall sensor and a second end of the first resistor connected to the input pin of the main control chip.

[0007] Preferably, the sensing circuit board further includes a second resistor and a light-emitting diode integrated on the circuit board body, wherein the first end of the second resistor is connected to the power supply terminal of the Hall sensor, the second end of the second resistor is connected to the negative terminal of the light-emitting diode, and the positive terminal of the light-emitting diode is connected to the first end of the first resistor.

[0008] Preferably, the sensing circuit board further includes a six-pin connector integrated on the circuit board body. The first end of the first pin of the six-pin connector is connected to the ground terminal of the Hall sensor through the circuit board body. The first end of the sixth pin of the six-pin connector is connected to the power supply terminal of the Hall sensor through the circuit board body. The first end of the fourth pin of the six-pin connector is connected to the second terminal of the second resistor through the circuit board body. The second ends of the first, second, third, fourth, fifth, and sixth pins of the six-pin connector are connected to the first target pin of the main control chip through a first connecting wire harness. The main control chip is integrated on the main board of the mahjong machine.

[0009] Preferably, the sensing circuit board further includes a four-pin connector integrated on the circuit board body, wherein the first end of the first pin of the four-pin connector is connected to the first end of the second pin of the six-pin connector through the circuit board body; the first end of the second pin of the four-pin connector is connected to the first end of the sixth pin of the six-pin connector through the circuit board body; the first end of the third pin of the four-pin connector is connected to the first end of the first pin of the six-pin connector through the circuit board body; the first end of the fourth pin of the four-pin connector is connected to the first end of the third pin of the six-pin connector through the circuit board body; and the second ends of the first, second, third, and fourth pins of the four-pin connector are connected to the head controller through a second connecting wire harness.

[0010] Preferably, the sensing circuit board further includes a three-pin connector integrated on the circuit board body, wherein the first end of the first pin of the three-pin connector is connected to the first end of the first pin of the six-pin connector through the circuit board body; the first end of the second pin of the three-pin connector is connected to the first end of the fifth pin of the six-pin connector through the circuit board body; the first end of the third pin of the three-pin connector is connected to the first end of the sixth pin of the six-pin connector through the circuit board body; and the second ends of the first, second, and third pins of the three-pin connector are connected to the card-raising controller through a third connecting wire harness.

[0011] Preferably, the swing structure further includes a support portion, and the swing portion also has a third end. The first end of the support portion is connected to the main body of the mahjong machine, and the second end of the support portion is connected to the third end of the swing portion.

[0012] Preferably, a slot is also formed on the support part, and the sensing circuit board is fixed in the slot.

[0013] Preferably, the sensing element includes a magnet.

[0014] Secondly, this application provides a mahjong machine, which includes a plurality of control devices as described above.

[0015] This application provides a control device and a mahjong machine. Each control device is arranged at the card dispensing port of the card feeding channel corresponding to each head of the mahjong machine. Each control device includes a Hall sensor and a corresponding swing structure. The swing structure includes a swing part and a sensing part. The swing part has at least a first end and a second end facing opposite directions. The sensing part is fixed to the first end of the swing part. The second end of the swing part is moved to the detection range of the sensing part at the input end of the Hall sensor by the impact of the mahjong tiles fed out from the card dispensing port. The output end of the Hall sensor is connected to the main control chip of the mahjong machine. After detecting the sensing part, the input end of the Hall sensor generates a Hall signal and sends it to the main control chip. In this way, the sensitivity of detecting mahjong tiles in the head of the mahjong machine does not decrease with use, the cost is lower, the number of maintenance operations is reduced, and the lifespan of the mahjong machine is extended. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A circuit diagram of the first part of the sensing circuit board provided in an embodiment of this application;

[0018] Figure 2 A circuit diagram of the second part of the sensing circuit board provided in an embodiment of this application;

[0019] Figure 3 A circuit diagram of the third part of the sensing circuit board provided in an embodiment of this application;

[0020] Figure 4 A circuit diagram of the fourth part of the sensing circuit board provided in an embodiment of this application.

[0021] icon:

[0022] H - Hall sensor, J1 - four-pin connector, J2 - six-pin connector, J3 - three-pin connector, R1 - first resistor, R2 - second resistor, D1 - light-emitting diode. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0024] In one embodiment of this application, a control device for a mahjong machine is provided. The control device is arranged at the card dispensing port of the card feeding channel corresponding to the target head of the mahjong machine. The control device includes a Hall sensor and a corresponding swing structure.

[0025] The swing structure includes a swing part and a sensing part. The swing part has at least a first end and a second end with opposite directions. The sensing part is fixed to the first end of the swing part. The second end of the swing part is moved to the detection range of the input end of the Hall sensor by the impact of the mahjong tile delivered from the tile outlet. The output end of the Hall sensor is connected to the main control chip of the mahjong machine. After the input end of the Hall sensor detects the sensing part, it generates a Hall signal and sends it to the main control chip.

[0026] In a specific embodiment, a control device can be installed at the outlet of the card feeding channel corresponding to each of the four card feeding heads of the mahjong machine. In this way, the conveyor belt of the card feeding channel of each card feeding head in the mahjong machine conveys the mahjong tiles that have been sucked up. The mahjong tiles fall from the outlet of the card feeding channel onto the receiving seat. Each time a mahjong tile falls onto the receiving seat, it impacts a swinging part. The swinging part swings under the impact of the mahjong tile, thereby moving the sensing part on the first end of the swinging part to the detection range of the Hall sensor's input terminal. The Hall sensor generates a Hall signal, and the swinging part then returns to its natural state, and the sensing part is no longer within the detection range of the Hall sensor's input terminal. When a new mahjong tile falls into the receiving seat, the swinging part swings again, and so on.

[0027] The Hall sensor sends Hall signals to the main control chip on the mahjong machine's motherboard. When two Hall signals are accumulated, it can be assumed that there are two mahjong tiles stacked on the tile holder. The main control chip can then control the tile pusher to push these two mahjong tiles into the tile stacking area. This action is repeated until all the mahjong tiles are stacked in the tile stacking area of ​​the four-sided machine head.

[0028] The control device for the mahjong machine provided in this application embodiment detects the mahjong tiles in the machine head using a Hall sensor. The sensitivity does not decrease with use and the cost is lower, reducing the number of maintenance operations and extending the lifespan of the mahjong machine.

[0029] Figure 1 A circuit diagram of the first part of the sensing circuit board provided in an embodiment of this application. Figure 2 A circuit diagram of the second part of the sensing circuit board provided in an embodiment of this application. Figure 3 A circuit diagram of the third part of the sensing circuit board provided in an embodiment of this application. Figure 4A circuit diagram of the fourth part of the sensing circuit board provided in an embodiment of this application.

[0030] like Figures 1 to 4 As shown, in one embodiment of this application, the control device further includes a sensing circuit board, a Hall sensor integrated on the circuit board body of the sensing circuit board, and the circuit board body also integrates a first resistor, a second resistor and a light-emitting diode.

[0031] The first end of the first resistor is connected to the output terminal of the Hall sensor, and the second end of the first resistor is connected to the input pin of the main control chip. The first resistor is used to isolate the Hall sensor and the main control chip.

[0032] The first end of the second resistor is connected to the power supply terminal of the Hall sensor, the second end of the second resistor is connected to the negative terminal of the light-emitting diode, and the positive terminal of the light-emitting diode is connected to the first end of the first resistor.

[0033] Light-emitting diodes (LEDs) are used to indicate the operating status of Hall effect sensors.

[0034] The first resistor here has a resistance of 330 ohms, and the second resistor has a resistance of 3.3K ohms. The Hall sensor, LED, first resistor, and second resistor can all be surface mount devices.

[0035] The sensing circuit board provided in this application has a simpler circuit structure and lower cost compared with existing sign-reading light control systems.

[0036] Furthermore, the sensing circuit board also includes a six-pin connector integrated on the circuit board body. The first end of the first pin of the six-pin connector is connected to the ground terminal of the Hall sensor through the circuit board body. The first end of the sixth pin of the six-pin connector is connected to the power supply terminal of the Hall sensor through the circuit board body. The first end of the fourth pin of the six-pin connector is connected to the second terminal of the second resistor through the circuit board body. The second ends of the first, second, third, fourth, fifth, and sixth pins of the six-pin connector are connected to the first target pin of the main control chip through a first connecting wire harness. The main control chip is integrated on the main board of the mahjong machine.

[0037] The first target pin of the main control chip may include output pins, input pins, ground pins, and power supply pins.

[0038] The sensing circuit board also includes a four-pin connector integrated on the circuit board body. The first end of the first pin of the four-pin connector is connected to the first end of the second pin of the six-pin connector through the circuit board body; the first end of the second pin of the four-pin connector is connected to the first end of the sixth pin of the six-pin connector through the circuit board body; the first end of the third pin of the four-pin connector is connected to the first end of the first pin of the six-pin connector through the circuit board body; the first end of the fourth pin of the four-pin connector is connected to the first end of the third pin of the six-pin connector through the circuit board body; and the second ends of the first, second, third, and fourth pins of the four-pin connector are connected to the head controller through a second connecting wire harness.

[0039] The four-pin connector here is used to connect to the head controller, which responds to the control signals from the main control chip and controls the operation of the pusher motor.

[0040] The sensing circuit board also includes a three-pin connector integrated on the circuit board body. The first end of the first pin of the three-pin connector is connected to the first end of the first pin of the six-pin connector through the circuit board body; the first end of the second pin of the three-pin connector is connected to the first end of the fifth pin of the six-pin connector through the circuit board body; the first end of the third pin of the three-pin connector is connected to the first end of the sixth pin of the six-pin connector through the circuit board body; and the second ends of the first, second, and third pins of the three-pin connector are connected to the card-raising controller through a third connecting harness.

[0041] The three-pin connector here is used to connect to the card-raising controller. When the main control module receives the Hall signal, it can send a control signal to the card-raising controller to control the raising and lowering of the card holder.

[0042] This connection method simplifies the wiring harness connection between circuit boards and reduces costs.

[0043] In one embodiment of this application, the swing structure further includes a support portion, which also has a third end. The first end of the support portion is connected to the main body of the mahjong machine, and the second end of the support portion is connected to the third end of the swing portion. A slot is also formed on the support portion, and the sensing circuit board is fixed in the slot.

[0044] For example, the third end of the support and the swinging part are hinged so that the swinging part can swing when it is hit, thereby driving the sensing part to move.

[0045] Specifically, the sensing element includes a magnet. This sensing element can be an iron sheet.

[0046] In one embodiment of this application, a mahjong machine is also provided. This mahjong machine is a fully automatic mahjong machine, and it includes multiple control devices as described above.

[0047] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] It should also be noted that, unless otherwise explicitly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A control device for a mahjong machine, characterized in that, The control device is located at the card dispensing outlet of the card feeding channel corresponding to the target head of the mahjong machine. The control device includes a Hall sensor and a corresponding swing structure. The swing structure includes a swinging part and a sensing part. The swinging part has at least a first end and a second end facing opposite directions. The sensing part is fixed to the first end of the swinging part. The second end of the swinging part is moved to the detection range of the input terminal of the Hall sensor by the impact of the mahjong tile delivered from the tile outlet. The output terminal of the Hall sensor is connected to the main control chip of the mahjong machine. After the input terminal of the Hall sensor detects the sensing element, it generates a Hall signal and sends it to the main control chip.

2. The control device according to claim 1, characterized in that, The control device also includes a sensing circuit board, the Hall sensor is integrated on the circuit board body of the sensing circuit board, the circuit board body also integrates a first resistor, the first end of the first resistor is connected to the output end of the Hall sensor, and the second end of the first resistor is connected to the input pin of the main control chip.

3. The control device according to claim 2, characterized in that, The sensing circuit board also includes a second resistor and a light-emitting diode integrated on the circuit board body. The first end of the second resistor is connected to the power supply terminal of the Hall sensor, the second end of the second resistor is connected to the negative terminal of the light-emitting diode, and the positive terminal of the light-emitting diode is connected to the first end of the first resistor.

4. The control device according to claim 2, characterized in that, The sensing circuit board also includes a six-pin connector integrated on the circuit board body, wherein, The first end of the first pin of the six-pin connector is connected to the ground terminal of the Hall sensor through the circuit board body; the first end of the sixth pin of the six-pin connector is connected to the power supply terminal of the Hall sensor through the circuit board body; and the first end of the fourth pin of the six-pin connector is connected to the second terminal of the second resistor through the circuit board body. The second ends of the first, second, third, fourth, fifth, and sixth pins of the six-pin connector are connected to the first target pin of the main control chip via a first connecting wire harness. The main control chip is integrated on the main board of the mahjong machine.

5. The control device according to claim 4, characterized in that, The sensing circuit board also includes a four-pin connector integrated on the main body of the circuit board, wherein... The first end of the first pin of the four-pin connector is connected to the first end of the second pin of the six-pin connector through the circuit board body; The first end of the second pin of the four-pin connector is connected to the first end of the sixth pin of the six-pin connector through the circuit board body; The first end of the third pin of the four-pin connector is connected to the first end of the first pin of the six-pin connector through the circuit board body; The first end of the fourth pin of the four-pin connector is connected to the first end of the third pin of the six-pin connector through the circuit board body; The first, second, third, and fourth pins of the four-pin connector are connected to the head controller via the second connecting wire harness.

6. The control device according to claim 5, characterized in that, The sensing circuit board also includes a three-pin connector integrated on the circuit board body, wherein... The first end of the first pin of the three-pin connector is connected to the first end of the first pin of the six-pin connector through the circuit board body; The first end of the second pin of the three-pin connector is connected to the first end of the fifth pin of the six-pin connector through the circuit board body; The first end of the third pin of the three-pin connector is connected to the first end of the sixth pin of the six-pin connector through the circuit board body; The first, second, and third pins of the three-pin connector are connected to the Shengpai controller via a third connecting harness.

7. The control device according to claim 6, characterized in that, The swing structure also includes a support portion, and the swing portion further has a third end. The first end of the support is connected to the main body of the mahjong machine, and the second end of the support is connected to the third end of the swinging part.

8. The control device according to claim 7, characterized in that, A slot is also formed on the support part, and the sensing circuit board is fixed in the slot.

9. The control device according to claim 1, characterized in that, The sensing element includes a magnet.

10. A mahjong machine, characterized in that, The mahjong machine includes a plurality of control devices for the mahjong machine as described in any one of claims 1-9.