CN207459805U - The mahjong machine master control borad that a kind of band USB charges - Google Patents

Abstract

The utility model discloses the mahjong machine master control borads that a kind of band USB charges,By the way that directly main circuit circuit and the coupling of USB rectification circuits can obtain the voltage through over commutation in main circuit,Rectified voltage is converted alternating current to after carrying out rectification by USB rectification circuits,Conversion circuit carries out being converted into charge power supply after receiving the rectified voltage,Charge power supply can be provided after equipment charge line is injected USB female seats to equipment,Compared to existing mahjong machine,A transformer is provided in its main circuit,And USB circuit also additionally uses a transformer,Transformer it is expensive,So add production cost,And the heat that transformer generates when working is big,The waste while high temperature for causing energy can also impact peripheral circuits,Make chip operation abnormal,This programme only needs a transformer,So reduce production cost,Also simplify circuit,More convenient production,Also reduce circuit volume simultaneously,It is more convenient that circuit is laid out.

Description

The mahjong machine master control borad that a kind of band USB charges

Technical field

The utility model is related to mahjong machine fields, are specially the mahjong machine master control borad that a kind of band USB charges.

Background technology

The one kind of mahjong as the Chinese quintessence of Chinese culture, it is nowadays old silly as that can prevent for a kind of converter tools of fighting will game Slow-witted disease, it is popular in every household, it conveniently shuffles to provide, occurs automatic mahjong-playing machine on the market, but this mahjong is given pleasure to The time that happy consumption often consumes is longer, is so easy for the situation of mobile phone out of power occur when playing mahjong, thus may Miss phone, it is impossible to the phenomenon that seeing short message etc in time, and be placed at socket and charge also or can not make one well Noticing incoming call and carrying out short message still may miss phone and cannot see short message in time, and be placed at socket It charges also easily stolen, existing mahjong machine is all provided with shell and internal circuit, and shell is overlooked as the square on four sides Structure, and the mahjong machine that existing band USB charges is to include a main circuit and USB circuit, and this USB circuit is Another independent circuit is will to carry out conversion output charge power supply after 220V ac bucks by transformer, and this Main circuit can also use a transformer by the decompression of 220V alternating currents into after after 12V alternating currents using 12V DC electricity is converted into Driving motor will set two transformers in such a mahjong machine, this not only increases circuit volume, inconvenient circuit row Cloth, and because of the at high price of transformer, thus considerably increase the cost of equipment production, and generated during transformer station high-voltage side bus Amount of heat sets the heat that two transformers generate easily to influence peripheral circuits work.

Utility model content

In view of the deficienciess of the prior art, a kind of band USB chargings the purpose of this utility model is to provide low cost Mahjong machine master control borad, to solve the problems mentioned in the above background technology.

To achieve the above object, the utility model provides following technical solution：The mahjong machine master control that a kind of band USB charges Plate, including main circuit and USB circuit, the USB circuit include USB rectification circuits and conversion circuit, the USB rectification circuits with Main circuit couples, and to obtain the transformation voltage in main circuit after transformer pressure-reducing, and is exported after rectification, the USB rectification circuits It is also coupled with conversion circuit, the conversion circuit is coupled with USB cradles, which is arranged on external mahjong machine shell On, the conversion circuit exports charge power supply after receiving rectified voltage and is input in USB cradles.

As further improvement of the utility model, the USB cradles include fixed seat and USB socket, and the USB is inserted Seat is coupled with conversion circuit, and the fixed seat is fixed on the one side of external mahjong machine shell, and the USB socket is fixedly connected In fixed seat.

As further improvement of the utility model, accommodating groove is offered in the fixed seat, the USB socket is arranged on On the side of the one side of accommodating groove.

As further improvement of the utility model, the USB socket includes female seat circuit board and USB female seats, the mother Seat circuit board is fixedly connected in fixed seat, and the USB female seats are welded on female seat circuit board, the female seat circuit board and conversion Circuit couples, and the conversion circuit exports charge power supply to female seat circuit board, and then transfers charge power supply to USB female seats.

As further improvement of the utility model, the USB rectification circuits and conversion circuit are incorporated into main circuit On circuit board.

As further improvement of the utility model, conducting wire is coupled between the female seat circuit board and conversion circuit, institute The one end and female seat circuit board for stating conducting wire couple, and the other end is coupled with conversion circuit；It is coupled on the conducting wire with female seat circuit board One end be provided with connector, the female seat circuit board is equipped with connecting seat, and the connector is adapted with connecting seat, when described When connector is inserted into connecting seat, the conducting wire is powered with female seat circuit board.

As further improvement of the utility model, the conversion circuit includes filter circuit and power management chip, institute It states filter circuit to couple with power management chip, the filter circuit is also connected with USB rectification circuits, after obtaining rectified voltage It is filtered, and exports filtering voltage, the power management chip is coupled with USB cradles, and the power management chip receives Filtering voltage simultaneously exports charge power supply.

As further improvement of the utility model, the input pin of the power management chip is coupled to USB filtered electricals Road, with the voltage that accepts filter, the output pin of the power management chip be coupled with after inductance L1 couple capacitance C4 in parallel and It is grounded after capacitance C5, the output pin of the power management chip is grounded after being also coupled to diode D1, the inductance L1 and electricity Hold the node output charge power supply of C4 connections.

As further improvement of the utility model, the USB rectification circuits are coupled with connecting line, and the one of the connecting line End is coupled with rectification circuit, and the other end is coupled with main circuit, and one end of the connecting line and rectification circuit coupling is equipped with connection and inserts Head, the rectification circuit are equipped with connection socket, and the connection plug is adapted with being connected socket, is inserted into and is connected when the connection plug During combination hub, the USB rectification circuits are powered with main circuit.

As further improvement of the utility model, primary control box, the USB rectification circuits, filter circuit and electricity are further included Source control chip is incorporated into primary control box, and the primary control box offers connection socket and is connected with connection plug and passed through for conducting wire Connected entrance.

The beneficial effects of the utility model, can be to main electricity by directly coupling main circuit circuit and USB rectification circuits The voltage of Lu Zhongjing over commutations obtains, and rectified voltage, conversion electricity are converted alternating current to after carrying out rectification by USB rectification circuits Road receives the charge power supply being converted into after the rectified voltage for equipment charge, after equipment charge line is injected USB female seats Charge power supply can be provided to equipment, compared to existing mahjong machine, a transformer, and USB are provided in main circuit 220V alternating currents are also additionally carried out transformation by circuit again using a transformer, will be there are two transformation in such mahjong machine Device, transformer it is expensive, so add production cost, and the heat that when transformer works generates is big, causes energy Waste high temperature can also impact peripheral circuits simultaneously, make chip operation abnormal, this programme only needs a transformer, so Reduce production cost, also simplify circuit, be more convenient production, while also reduce circuit volume, it is more convenient to circuit into Row layout.

Description of the drawings

Fig. 1 is the utility model USB circuit schematic diagram；

Fig. 2 is the utility model female seat circuit board schematic diagram；

Fig. 3 is the utility model primary control box schematic diagram；

Fig. 4 is the utility model mahjong machine schematic diagram.

Specific embodiment

The utility model is described in further detail below in conjunction with the embodiment given by attached drawing.

With reference to shown in Fig. 1-4, the mahjong machine master control borad of a kind of band USB chargings of the present embodiment, including main circuit and USB electricity Road, the USB circuit include USB rectification circuits 3 and conversion circuit 5, and the USB rectification circuits 3 are coupled with main circuit, to obtain Transformation voltage in main circuit after transformer pressure-reducing, and being exported after rectification, the USB rectification circuits 3 also with 5 coupling of conversion circuit It connects, the conversion circuit 5 is coupled with USB cradles 8, which is arranged on external mahjong machine shell, the conversion Circuit 5 exports charge power supply after receiving rectified voltage and is input in USB cradles 8.

Through the above technical solutions, USB rectification circuits 3 and main circuit couple to obtain it is rectified in main circuit after rectification Voltage, the charge power supply that conversion circuit 5 after receiving the rectified voltage convert and then output is charged for mobile phone, then passes through By mobile phone charging wire insertion USB female seats 65, it is possible to provide charge power supply to mobile phone and charge to mobile phone, so compared to existing Mahjong machine, a transformer is provided in main circuit, and USB circuit is also additionally exchanged 220V using a transformer Electricity carries out transformation again, in such mahjong machine will there are two transformer, transformer it is expensive, so add and be produced into This, and the heat generated during transformer work is big, and the waste while high temperature for causing energy can also impact peripheral circuits, Make chip operation abnormal, this programme only needs a transformer and a rectification circuit, so reduces production cost, also simplify Circuit is more convenient production, while also reduces circuit volume, more convenient that circuit is laid out.

As a kind of improved specific embodiment, the USB cradles 8 include fixed seat 81 and USB socket 82, described USB socket 82 is coupled with conversion circuit 5, and the fixed seat 81 is fixed on the one side of external mahjong machine shell, and the USB is inserted Seat 82 is fixedly connected in fixed seat 81.

Through the above technical solutions, the present embodiment is provided with four USB cradles 8, at four of mahjong machine housing exterior Side respectively sets a USB cradle 8, and the USB socket 82 of connection can will be secured to firmly by the fixed seat 81 of setting It is fixed on mahjong machine shell, can thus be used simultaneously for four users, and being arranged on side sets USB socket 82 Position become apparent from, can be easier to allow user to find the position of USB socket 82.

As a kind of improved specific embodiment, accommodating groove 83, the USB socket 82 are offered in the fixed seat 81 It is arranged on the side of the one side of accommodating groove 83.

Through the above technical solutions, opening up accommodating groove 83 in fixed seat 81, accommodating groove 83 accounts for mahjong machine shell side cotton Area it is larger, be so easier to attract the user's attention, and USB socket 82 is arranged on 83 side of accommodating groove, is so more held User is easily made to find USB socket 82, and is not provided with covering, is also more prone to that user is allowed to find 82 place of USB socket, and User so avoids user in scutching in the accommodating groove 83 for making directly to be placed on equipment on side to equipment charge By when, mobile phone is inconvenient to put on the table, it is also inconvenient hand held the phenomenon that, while USB socket 82 is arranged on accommodating groove 83 Side on, so also avoid user because charging wire causes equipment to place the phenomenon that inconvenient compared with short-range missile.

As a kind of improved specific embodiment, the USB socket 82 includes female seat circuit board 64 and USB female seats 65, The female seat circuit board 64 is fixedly connected in fixed seat 81, and the USB female seats 65 are welded on female seat circuit board 64, the mother Seat circuit board 64 is coupled with conversion circuit 5, and the conversion circuit 5 exports charge power supply to female seat circuit board 64, and then female to USB Seat 65 transfers charge power supply.

Through the above technical solutions, USB female seats 65 are connected on female seat circuit board 64, then female seat circuit board 64 again with Conversion circuit 5 couples, and USB female seats 65 and conversion circuit 5 are communicated by female seat circuit board 64, by USB female seats 65 and female seat electricity Road plate 64 is combined, and USB female seats 65 are very very difficult for patch machine and plug-in component machine, if by USB female seats 65 and conversion circuit 5 simultaneously be arranged on one piece of circuit board, so to conversion circuit 5 carry out component patch or plug-in unit The manual plug-in unit of USB female seats 65, patch or slotting before such craft plug-in unit is just very easy to damage could be carried out after finishing The component that part is completed, if first carrying out the plug-in unit of USB female seats 65, remaining component by machine patch or can not just be inserted Part thus all needs human weld, has so effectively caused work burden, by USB female seats 65 and female seat circuit board 64 from It is independent in USB circuit, it is possible to be carried out at the same time the production of conversion circuit 5 and female seat circuit board 64 and USB socket 65, so Production modularized production can be facilitated, facilitate large batch of production, while also save labour, save cost.

As a kind of improved specific embodiment, the USB rectification circuits 3 and conversion circuit 5 are incorporated into main circuit Circuit board on.

Through the above technical solutions, by the way that the USB rectification circuits 3 of USB circuit and conversion circuit 5 are incorporated into main circuit Circuit space can be thus saved on circuit board, and component is facilitated to carry out mechanical patch and mechanical inserts, so once Main circuit and the installation of the component of USB rectification circuits 3 and conversion circuit 5 can be completed, compared to existing by USB rectification circuits 3 and conversion circuit 5 separately as a circuit board, the present embodiment facilitates production, reduces circuit space, reduces circuit board size, Save cost.

As a kind of improved specific embodiment, conducting wire is coupled between the female seat circuit board 64 and conversion circuit 5 61, one end and the female seat circuit board 64 of the conducting wire 61 couple, and the other end is coupled with conversion circuit 5；On the conducting wire 61 with mother One end that seat circuit board 64 couples is provided with connector 62, and the female seat circuit board 64 is equipped with connecting seat 63, the connector 62 are adapted with connecting seat 63, and when the connector 62 is inserted into connecting seat 63, the conducting wire 61 is powered with female seat circuit board 64.

Through the above technical solutions, be attached conversion circuit 5 and female seat circuit board 64 by conducting wire 61, it is thus real The now charge transport of long range facilitates the installation of equipment and the setting of master control Board position, and the electricity of relatively long distance passes Defeated mode is compared using the transmission of conducting wire 61 for wireless electric quantity transmission, and transmission efficiency is much higher, at low cost, and the operation is stable is not easy Damage；By the connector 62 of setting and connecting seat 63, by the cooperation of connector 62 and connecting seat 63 to conducting wire 61 and female seat The communication of circuit board 64 is attached, and use can realize that subsequent conditioning circuit is removably connected, and further facilitate installation Mode.

As a kind of improved specific embodiment, the conversion circuit 5 includes filter circuit 4 and power management chip 51, the filter circuit 4 is coupled with power management chip 51, and the filter circuit 4 is also connected with USB rectification circuits 3, to obtain It is filtered after rectified voltage, and exports filtering voltage, the power management chip 51 and USB cradles 8 couple, the power supply Managing chip 51, which accepts filter, voltage and exports charge power supply.

Through the above technical solutions, by the way that filter circuit 4 is set to be filtered the rectified voltage received, it is possible to defeated Go out the filtering voltage signal of shallower stabilization, power management chip 51 is preferably allowed to carry out reception utilization to it, then passes through electricity Source control chip 51 is converted to receiving filtering voltage, is converted thereof into the charge power supply that can be charged for mobile phone, and is led to The mobile phone that USB cradles 8 are crossed to user charges, and compared to the scheme for being not provided with filter circuit 4, the present embodiment can give electricity Source control chip 51 provides more reliable and more stable input voltage, can be that the work of power management chip 51 is more stable, output It is more stable, the phenomenon that causing to damage because of mobile phone input current or spread of voltage when can thus reduce mobile phone charging.

As a kind of improved specific embodiment, the input pin of the power management chip 51 is coupled to USB filtering Circuit 4, with the voltage that accepts filter, the output pin of the power management chip 51 couples capacitance in parallel after being coupled with inductance L1 It is grounded after C4 and capacitance C5, the output pin of the power management chip 51 is grounded after being also coupled to diode D1, the inductance The node output charge power supply that L1 is connected with capacitance C4.

Through the above technical solutions, LM2596 models power management chip 51 may be employed in such as the present embodiment, when When LM2596 internal switches pipe turns on, filtering voltage is by the switching tube of conducting, from 2 feet of the power management chip 51 to inductance L1 and capacitance C4 charges and load supplying, inductance L1 and capacitance C4 energy storage, diode D1 cut-offs；When LM2596 internal switches pipe is cut When only, 2 feet of the power management chip no longer export filtering voltage, and inductance L1 maintains load current magnetic field energy to be converted into electric energy, Diode D1 turn on, provide inductance L1 electric discharge current loop simultaneously, capacitance C4 also discharges, and current potential slightly declines, this current potential passes through 4 feet of the power management chip 51, compared with reference voltage, during less than reference voltage, 51 internal switch of power management chip Pipe turns on again, starts next cycling, and capacitance C4 exports charge power supply with inductance L1 nodes, using LM2596 models electricity Source control chip 51 compares the power management chip 51 of Li Shengmei LN1F20 models, has peripheral circuit simple, starts convenient Benefit can be further simplified circuit, facilitate production, reduce cost.

As a kind of improved specific embodiment, the USB rectification circuits 3 are coupled with connecting line 71, the connecting line 71 one end is coupled with rectification circuit, and the other end is coupled with main circuit, and the rectification circuit is logical by connecting line 71 with main circuit One end of letter, the connecting line 71 and rectification circuit coupling is equipped with connection plug 72, and the rectification circuit is equipped with connection socket 73, The connection plug 72 is adapted with being connected socket 73, when the connection plug 72 is inserted into connection socket 73, the rectified current Road communicates with main circuit.

Through the above technical solutions, being coupled USB rectification circuits 3 and conversion circuit 5 by connecting line, can extend The transmission of electric signal has further facilitated the layout of circuit, and the connection plug 72 and connection socket 73 that set are used cooperatively, It thus can be to removably being connected between USB rectification circuits 3 and conversion circuit 5, as long as by connection plug 72 and USB Connection socket 73 on rectification circuit 3 is attached, it is possible to realize the connection of USB rectification circuits 3 and conversion circuit 5, so It easy to disassemble can be also convenient for installing, while mating connection first 62 and connecting seat 63 can be realized and carry out USB circuit independently, Compared to the mode for welding circuit, thus circuit has been further facilitated on the basis of connecting seat 63 and connector 62 coordinate Installation, further improves the degree of freedom of circuit installation, and staff only need to first install USB cradles 8 and main circuit, Ran Hou By connector 62 and connecting seat 63, connection plug 72 is used cooperatively with connection socket 73, it is possible to carry out follow-up USB circuit Installation.

As a kind of improved specific embodiment, further include primary control box 9, the USB rectification circuits 3, filter circuit 4, Connection socket 73 and power management chip 51 are incorporated into primary control box 9, and the primary control box 9 offers connection socket 73 with being connected The connected entrance that plug 72 is connected and passed through for conducting wire 61.

Through the above technical solutions, by the way that USB rectification circuits 3, filter circuit 4, connection socket 73 and conversion circuit 5 is whole It closes into a primary control box 9, and has opened up connected entrance, it can be with more convenient fixation to connection plug 72 and conducting wire 61 and peace Dress, staff only need to first install USB cradles 8, primary control box 9 and main circuit, then by connector 62 and connecting seat 63, Connection plug 72 is used cooperatively with connection socket 73, and USB circuit is connected, and so easily mounting means carries High staffing effectiveness saves labor cost, while so integrates modular production, facilitate management in production process and Quality inspection also improves production efficiency.

The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to Above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to Go out, for those skilled in the art, several improvement under the premise of the utility model principle is not departed from and Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims (10)

1. the mahjong machine master control borad that a kind of band USB charges, including main circuit and USB circuit, the USB circuit includes USB rectifications Circuit (3) and conversion circuit (5), which is characterized in that the USB rectification circuits (3) couple with main circuit, to obtain in main circuit Transformation voltage after transformer pressure-reducing, and exported after rectification, the USB rectification circuits (3) also couple with conversion circuit (5), institute It states conversion circuit (5) and is coupled with USB cradles (8), which is arranged on external mahjong machine shell, the conversion Circuit (5) exports charge power supply after receiving rectified voltage and is input in USB cradles (8).

2. the mahjong machine master control borad that band USB according to claim 1 charges, which is characterized in that the USB cradles (8) Including fixed seat (81) and USB socket (82), the USB socket (82) couples with conversion circuit (5), and the fixed seat (81) is solid It is scheduled on the one side of external mahjong machine shell, the USB socket (82) is fixedly connected in fixed seat (81).

3. the mahjong machine master control borad that band USB according to claim 2 charges, which is characterized in that on the fixed seat (81) Accommodating groove (83) is offered, on the side for the one side that the USB socket (82) is arranged on accommodating groove (83).

4. the mahjong machine master control borad that the band USB according to Claims 2 or 3 charges, which is characterized in that the USB socket (82) female seat circuit board (64) and USB female seats (65) are included, the female seat circuit board (64) is fixedly connected in fixed seat (81), The USB female seats (65) are welded on female seat circuit board (64), and the female seat circuit board (64) couples with conversion circuit (5), institute It states conversion circuit (5) and exports charge power supply to female seat circuit board (64), and then charge power supply is transferred to USB female seats (65).

5. the mahjong machine master control borad that band USB according to claim 4 charges, which is characterized in that the USB rectification circuits (3) it is incorporated into conversion circuit (5) on the circuit board of main circuit.

6. the mahjong machine master control borad that band USB according to claim 4 charges, which is characterized in that the female seat circuit board (64) conducting wire (61) is coupled between conversion circuit (5), one end and the female seat circuit board (64) of the conducting wire (61) couple, separately One end is coupled with conversion circuit (5)；One end on the conducting wire (61) with female seat circuit board (64) coupling is provided with connector (62), the female seat circuit board (64) is equipped with connecting seat (63), and the connector (62) is adapted with connecting seat (63), works as institute When stating connector (62) insertion connecting seat (63), the conducting wire (61) is powered with female seat circuit board (64).

7. the mahjong machine master control borad that the band USB according to claim 1 or 2 or 3 any one charges, which is characterized in that institute Stating conversion circuit (5) includes filter circuit (4) and power management chip (51), the filter circuit (4) and power management chip (51) coupling, the filter circuit (4) is also connected with USB rectification circuits (3), to be filtered after obtaining rectified voltage, and it is defeated Go out filtering voltage, the power management chip (51) couples with USB cradles (8), and the power management chip (51) receives filter Wave voltage simultaneously exports charge power supply.

8. the mahjong machine master control borad that band USB according to claim 7 charges, which is characterized in that the power management chip (51) input pin is coupled to filter circuit (4), with the voltage that accepts filter, the output pin of the power management chip (51) It is coupled with after capacitance C4 in parallel and capacitance C5 is coupled after inductance L1 and is grounded, the output pin of the power management chip (51) is also It is grounded after being coupled with diode D1, the node output charge power supply that the inductance L1 is connected with capacitance C4.

9. the mahjong machine master control borad that band USB according to claim 8 charges, which is characterized in that the USB rectification circuits (3) connecting line (71) is coupled with, one end and the rectification circuit of the connecting line (71) couple, and the other end is coupled with main circuit, institute The one end for stating connecting line (71) and rectification circuit coupling is equipped with connection plug (72), and the rectification circuit is equipped with connection socket (73), the connection plug (72) is adapted with being connected socket (73), when the connection plug (72) is inserted into connection socket (73) When, the USB rectification circuits (3) are powered with main circuit.

10. the mahjong machine master control borad that band USB according to claim 9 charges, which is characterized in that primary control box (9) is further included, The USB rectification circuits (3), filter circuit (4), connection socket (73) and power management chip (51) are incorporated into primary control box (9) in, the primary control box (9) offers the connected entrance passed through for conducting wire (61).