CN206235080U - A kind of electric sliding rail system for large-capacity refrigerator drawer - Google Patents

Abstract

The utility model provides a kind of electric sliding rail system for large-capacity refrigerator drawer, and it can solve operation inconvenience, the insecure problem of switch that current refrigerator drawer slide rail is present.Active slide track component and driven slide track component are symmetrically arranged on the both sides of refrigerator drawer, slide track component is connected with the side wall of inner container of icebox, slide track component includes fixed guide rail, connection guide rail and rail plate, fixed guide rail is installed on the madial wall of inner container of icebox by fixed rail brackets, rail plate is connected by rail plate support with refrigerator drawer, and rail plate is slidably connected by connecting guide rail with fixed guide rail；Two groups of slide track components are respectively slide rail drive component and are installed on active slide track component, active slide track component drives driven slide track component synchronizing moving by Synchronization Component, and slide rail drive component drives active slide track component to act by the way of touch control, while active slide track component drives driven slide track component synchronization action to realize the opening or closure of refrigerator drawer by Synchronization Component.

Description

A kind of electric sliding rail system for large-capacity refrigerator drawer

Technical field

The utility model is related to railroad field, is especially for the slide rail field of household electrical appliance, specially one Plant the electric sliding rail system for large-capacity refrigerator drawer.

Background technology

Existing refrigerator drawer is that manually pull-out or propulsion are installed on slide rail between drawer and inner container of icebox and come real mostly The unlatching of existing refrigerator drawer and closure, by the weight factor of contain things in drawer, are manually pulled out or advance the strength of slide rail The influence of the factors such as size, the unlatching of refrigerator drawer and closure can not usually be operated in place and cause the refrigerator drawer can not to open in time Open and close, influence is brought with reliable preservation to picking and placeing in time for food in refrigerator.Although having occurred in that in the art at present For the electric slide rail device of drawer, but this kind of electric slide rail device is only applicable to the daily family under ambient temperature and moisture environment Tool, and the environment of low temperature and high humidity in refrigerator cannot be adapted to, thus this kind of electric sliding rail cannot be applied to refrigerator drawer.

Utility model content

Regarding to the issue above, the utility model provides a kind of electric sliding rail system for large-capacity refrigerator drawer, its By manually opened and closing, the operation of presence is inconvenient more than the current refrigerator drawer slide rail of energy solution, drawer is opened and closure can not The problem leaned on.

A kind of electric sliding rail system for large-capacity refrigerator drawer, it includes refrigerator drawer and two groups of slide track components, institute The both sides that two groups of slide track components are symmetrically arranged on the refrigerator drawer are stated, the slide track component is connected with the side wall of inner container of icebox, The slide track component includes fixed guide rail, connection guide rail and rail plate, and the fixed guide rail passes through fixed rail brackets and installs In on the madial wall of inner container of icebox, the rail plate is connected by rail plate support with refrigerator drawer, the rail plate It is slidably connected with the fixed guide rail by the connection guide rail, it is characterised in that：Its also include slide rail drive component and Synchronization Component, two groups of slide track components are respectively active slide track component and driven slide track component, the slide rail drive component peace Loaded on the active slide track component, the active slide track component drives the driven slide track component same by the Synchronization Component Moved further, the slide rail drive component drives active slide track component action by the way of touch control, while the master Dynamic slide track component drives the driven slide track component synchronization action to realize the opening or closure of refrigerator drawer by Synchronization Component.

Further, the slide rail drive component include drive gear, drive tooth bar, the touch pad of built-in touch chip, Reducing motor and controller, the reducing motor are installed on the front end outer side of the fixed guide rail of the active slide track component, described Drive gear is installed on the output rotation axis of the reducing motor, and the driving tooth bar is installed on the active slide track component On rail plate support, the drive gear engagement is installed on the driving tooth bar, the built-in touch pad for touching chip Be installed on the drawer door wall of refrigerator drawer, the reducing motor, built-in touch chip touch pad respectively with the controller Electricly connect, the touch signal that the controller sends according to the touch pad of the described built-in touch chip for receiving is to control Stating reducing motor drives the drive gear to make level shifting along the driving rack drives rail plate support and rail plate It is dynamic, so as to realize the automatically controlled opening or closure of refrigerator drawer.

Further, the reducing motor is installed in motor housing, and the motor housing includes motor case and case Cover plate, the motor case is provided with motor accommodating chamber, and two side bottoms of the motor accommodating chamber stretch out to form flange connector, Cylinder lumen pore is provided with the flange connector, the reducing motor is placed in the motor accommodating chamber of the motor case, described The medial surface of case cover plate is provided with alignment pin and electric machine spacing block, and the alignment pin is plugged in and institute is caused in the cylinder lumen pore State that case cover plate is covered on the motor case and the electric machine spacing block carries out lateral Displacement to the reducing motor, By fastened by screw between the motor case and case cover plate, the lateral surface two ends of the case cover plate are respectively symmetrically and are provided with outwards The grab of extension, and the case cover plate is provided with the elastic boss for protruding laterally, the case cover plate two ends it is described Grab hooks the front end outer side together in the fixed guide rail while the elastic boss is flush-mounted in the mounting hole of the fixed guide rail.

Further, the rail plate support be lath-shaped, the rail plate support include drive rack connecting portion, Refrigerator drawer fastening part and rail plate connecting portion, the side lower vertical connection of the broadside of the refrigerator drawer fastening part The top for having the rail plate connecting portion, opposite side is connected by connecting portion with the driving rack connecting portion, the driving Tooth bar is installed on the downside surface of the driving rack connecting portion, and the rail plate support passes through the refrigerator drawer fastening part It is installed on the bottom side of refrigerator drawer, is connected with the rail plate by the rail plate connecting portion；The slip is led The front end of rail connecting portion is additionally provided with and passes through screw with refrigerator drawer door with refrigerator drawer connecting portion, the refrigerator drawer connecting portion Fastening.

It is described to drive tooth bar to connect integral tooth-strip part and installation portion, the top surface of the installation portion including L-shaped right angle On be provided with boss, on the driving rack connecting portion correspondence be provided with tooth bar mounting hole, the installation portion is riveted on the slip Boss on the bottom surface of the driving rack connecting portion of rail brackets and the installation portion is embedded in the driving rack connecting portion In tooth bar mounting hole；Square hole is provided with the refrigerator drawer fastening part, the bottom side of refrigerator drawer is provided with buckle, the card Button spiral-lock is in the square hole；The rail plate connecting portion is provided with two lugs, and the lateral surface of the rail plate is provided with Two outwardly bridge portions, cavity, the rail plate in being formed between the lateral surface of the rail plate and the bridge portion In the middle cavity that two bridge portions that two lugs of connecting portion insert the rail plate respectively are formed with lateral surface, and wherein It is provided with one bridge portion on the lug of screwed hole rail plate connecting portion corresponding with bridge portion this described and is provided with elliptical aperture, The rail plate and rail plate connecting portion are positioned fastening by set screw by the screwed hole, elliptical aperture.

Further, the Synchronization Component includes connecting rod and two groups of synchronizing wheel devices, two groups of synchronizing wheel devices difference It is installed on the slide track component of refrigerator drawer both sides, the synchronizing wheel device includes synchromesh gear, synchronous tooth bar, the synchromesh gear It is installed on gear pedestal, the gear pedestal is installed in the Basolateral of the rail plate, the synchronous tooth bar is installed on The lateral surface of rack support, the rack support is installed on the bottom of the fixed rail brackets, the synchromesh gear engagement peace Loaded on the synchronous tooth bar, the connecting rod synchronized links are passed through between the synchronizing wheel of two groups of synchronizing wheel devices.

Further, the gear pedestal is provided with chuck, and the one side of the synchromesh gear is provided with annular groove, the circle Shape groove bottom is evenly distributed and is provided with barb, and the barb hooks the chuck for sharing the gear pedestal.

Further, the fixed rail brackets is taken the shape of the letter U, and a lateral surface of the fixed rail brackets is installed in refrigerator On the wall of courage side, another lateral surface is connected with the fixed guide rail.

Further, the controller includes that control unit and the drive signal electricly connected with described control unit are put Big circuit, H-bridge drive circuit, speed feedback circuit, touch start-up circuit；

Described control unit is used to control the reducing motor to act；

The drive signal amplifying circuit, is adjusted by what described control unit sent for amplifying to the reducing motor The pwm control signal of speed；

The H-bridge drive circuit is connected with the drive signal amplifying circuit, for controlling turning for the reducing motor To；

The speed feedback circuit is connected with the H-bridge drive circuit, for by the rotating speed of presently described reducing motor Feed back to described control unit；

The start-up circuit that touches is used to pass to human body to the touch signal produced comprising the touch pad for touching chip Described control unit is acted controlling the reducing motor.

Further, including with described control unit the push-and-pull start-up circuit for electricly connecting, the push-and-pull start-up circuit Including the rectification circuit and comparison circuit that are connected, the rectification circuit is connected with the reducing motor, the comparison circuit It is connected with described control unit, the rectification circuit is used to that rail plate described in push-and-pull to be made what the reducing motor was produced Into comparison signal, the comparison circuit is used to that the comparison signal to be compared and be produced with preset value positive and negative voltage conversion Push pull signal passes to described control unit to control the reducing motor to act.

Further, also including the trip control circuit electricly connected with described control unit, the trip control circuit Including the control travel switch LSW1 and control travel switch LSW2 that opens the door that closes the door, the bottom of the fixed guide rail is provided with closes the door Control travel switch LSW1, the anterior end of the rail plate is provided with enabling control travel switch LSW2, and open the door control row Cheng Kaiguan LSW2 and the control travel switch LSW1 that closes the door connect described control unit by connector respectively, and the enabling stroke is opened Close interface LSW2 transmission enabling information to brake the reducing motor to described control unit, the travel switch LSW1 that closes the door Information of closing the door is transmitted to brake the reducing motor to described control unit.

Further, also including Hall braking circuit, the Hall braking circuit includes that the reducing motor passes through grafting The Hall element hall of device connection, the Hall element hall are electricly connected with described control unit, the Hall element hall The reducing motor per revolution is produced a pulse signal and the pulse signal is passed into described control unit, institute State the pulse signal of the control unit to receiving to count, when the pulse signal quantity that described control unit is received reaches Described in during the pulse number that reducing motor required for opening completely or close completely to the rail plate is rotated and produced Control unit controls the reducing motor stopping action.

Further, optoelectronic switch is additionally provided with the door wall of refrigerator drawer, the optoelectronic switch passes through optoelectronic switch Circuit is connected with described control unit, and the photoswitch circuit is by the optoelectronic switch detecting distance information and by described in Range information passes to the braking that described control unit controls the reducing motor.

Further, also including power supply circuit, the power supply circuit is used to be powered described control unit.

Further, control unit include single-chip microcomputer U1 and be connected with single-chip microcomputer TJC3-4A type connectors T3, TJC3-5A type connector T4,1 port of single-chip microcomputer connects 1 port of TJC3-4A type connectors T3, and 11 ports of single-chip microcomputer connect 3 ports of TJC3-4A type connectors T3 are connect, 1 port of TJC3-4A type connectors T3 is grounded after connecting electric capacity C25, TJC3-4A 1 port of type connector T3 is also connected with 5v power supplys, and 2 ports and 4 ports of TJC3-4A type connectors T3 are grounded respectively, single-chip microcomputer 13 ports connection resistance R14 after connect 4 ports of TJC3-5A type connectors T4, after the 13 ports connection resistance R14 of single-chip microcomputer 4 ports of connection TJC3-5A type connectors T4,13 ports of single-chip microcomputer connect TJC3-5A type connectors T4 after connecting resistance R13 5 ports, TJC3-5A type connectors T4 2 ports connection 5v power supplys, TJC3-5A type connectors T4 1 port connection Vpp, The 3 ports ground connection of TJC3-5A type connectors T4.

Further, the drive signal amplifying circuit includes triode Q1, Q2, Q3, Q4, Q5, Q6, the triode Q1 Base stage connection single-chip microcomputer U1 6 ports, the grounded emitter of the triode Q1, the colelctor electrode connection institute of the triode Q1 State the base stage of triode Q2, one end of the emitter stage connection resistance R17 of the triode Q2, the other end connection electricity of resistance R17 Hinder 2 ports of the triode D2 of one end and the H-bridge drive circuit of R21, the other end ground connection of resistance R21, the triode The colelctor electrode connection 12v power supplys of Q2；5 ports of the base stage connection single-chip microcomputer U1 of the triode Q3, the hair of the triode Q3 Emitter grounding, one end of the emitter stage connection resistance R18 of the triode Q3, the one of the other end connection resistance R22 of resistance R18 4 ports of the triode D1 of end and the H-bridge drive circuit, the other end connection 12v power supplys of the resistance R22；Three pole 8 ports of the base stage connection single-chip microcomputer U1 of pipe Q4, the grounded emitter of the triode Q4, the colelctor electrode of the triode Q1 connects The base stage of the triode Q5 is connect, one end of the emitter stage connection resistance R19 of the triode Q5, one end of resistance R19 is another End connects 2 ports of one end of resistance R23 and the triode D4 of the H-bridge drive circuit, another termination of the resistance R23 Ground；7 ports of the base stage connection single-chip microcomputer U1 of the triode Q6, the grounded emitter of the triode Q6, the triode One end of the emitter stage connection resistance R20 of Q6, one end of the other end connection resistance R24 of resistance R20 and the H-bridge drive circuit Triode D3 4 ports, resistance R24 the other end connection 12v power supplys.

The H-bridge drive circuit includes triode D1, D2, D3, D4, and 1 port of the triode D2 connects the rotating speed Feedback circuit, 2 ports of the triode D2 connect the resistance R17,7, the 8 ports difference connecting valve of the triode D2 1 port of reducing motor is connected after SF；12v power supplys connect 3 ports of the triode D1,12v power supplys warp after diode D6 Connect 4 ports of the triode D1 after resistance R22,5,6 ports of the triode D1 connect after connecting valve SF subtract respectively 1 port of speed motor；1 port of the triode D4 connects the speed feedback circuit, the 2 ports connection of the triode D4 The resistance R19,7,8 ports of the triode D4 connect 2 ports of reducing motor respectively；12v power supplys connect after diode D6 3 ports of the triode D4 are connect, 12v power supplys connect 4 ports of the triode D1, the triode D3 after resistance R24 5,6 ports difference connecting valve SF after connect 2 ports of reducing motor.

The speed feedback circuit includes resistance RS1, RS2 in parallel, 1 port of triode D2 and 1 end of triode D4 Mouth connects ground connection after resistance RS1, RS2 respectively, after 1 port of triode D2 and 1 port of triode D4 connect resistance R25 respectively Concatenation operation amplifier U4A reconnects resistance R25,9 ports of resistance R25 connection single-chip microcomputers U1.

The rectification circuit includes rectifier bridge BD2, and two inputs of rectifier bridge BD2 connect 1 end of reducing motor respectively Mouth and 2 ports, are connected with electric capacity C15 between two output ends of rectifier bridge BD2, electric capacity c15 ground connection, one end of electric capacity c15 connects One end of connecting resistance R33, one end of one end connection resistance R34 of electric capacity c15 and the positive pole of voltage-stabiliser tube Z03, resistance R33's is another It is grounded after one end, the other end of resistance R34, the electric capacity C14 of the negative pole connection comparison circuit of voltage-stabiliser tube Z03, resistance R33's is another End, the negative pole of the other end of resistance R34, voltage-stabiliser tube Z03 are also connected with resistance R32, connect after resistance R32 connection comparators U4B One end of connecting resistance R29, is grounded after the other end connection electric capacity C17 of resistance R29, and the other end of resistance R29 is also connected with single-chip microcomputer 10 ports of U1.

The touch start-up circuit includes that touch the chip U5, the touch chip U5 and touch pad Touch Pad connect Connect, the touch chip U5 passes through connector TJC3-3A types connector T5, TJC3-4A type connector T3 and the single-chip microcomputer control The pin 11 of unit U1 processed is connected.

The photoswitch circuit includes optoelectronic switch U7, and 1 port of optoelectronic switch U7 connects 2 ports of TJC3-5A, light 2 ports of electric switch U7 connect 2 ports of connection TJC3-5A after resistance R52, and 2 ports of optoelectronic switch U7 are also connected with TJC3-5A 4 ports of type connector T4,3 ports of optoelectronic switch U7 connect 2 ports of connection TJC3-5A after resistance R53（INT is assorted ）, 2 ports of TJC3-5A are connected after the 4 ports connection resistance R51 of optoelectronic switch U7,4 ports of optoelectronic switch U7 are also connected with 4 ports of TJC3-5A type connectors T4,5 ports of optoelectronic switch U7 connect one end of electric capacity C51, the one of electric capacity C52 respectively End, the negative pole of voltage-stabiliser tube ZD2, one end of electric capacity C51, one end of electric capacity C52, the negative pole of voltage-stabiliser tube ZD2 are also with the 2 of TJC3-5A Port is connected, and the other end of C51, the other end of electric capacity C52, the positive pole of voltage-stabiliser tube ZD2 are grounded respectively, optoelectronic switch U7 8, 9 ports are grounded respectively.

Electric sliding rail system for large-capacity refrigerator drawer of the present utility model, its setting for passing through slide rail drive component On the drawer door wall of refrigerator drawer the built-in touch chip of touch pad by the touch signal on touch pad pass to controller and Drive gear is driven to make level along driving rack drives rail plate support and rail plate by controller control reducing motor Slide track component and refrigerator drawer synchronizing moving that Synchronization Component drives both sides are moved through, so as to realize the electricity of refrigerator drawer Control touch is opened or closed, and its manipulation is convenient, and the opening or closure of drawer are reliable and stable, additionally, electric sliding of the present utility model Also there is rail system auxiliary to open or closing assisted refrigerator drawer when user is opened in pulling or closing refrigerator drawer Function.

Brief description of the drawings

Fig. 1 is a kind of electric sliding rail system structure diagram for large-capacity refrigerator drawer of the utility model；

Fig. 2 be a kind of electric sliding rail system for large-capacity refrigerator drawer of the utility model in be equipped with slide rail driving group First view stereo schematic diagram of part, the active slide track component of synchronizing wheel device；

Fig. 3 be a kind of electric sliding rail system for large-capacity refrigerator drawer of the utility model in be equipped with slide rail driving group Second view stereo schematic diagram of part, the active slide track component of synchronizing wheel device；

Fig. 4 is the A of Fig. 3 to schematic diagram；

Fig. 5 is active slide track component, cunning in a kind of electric sliding rail system for large-capacity refrigerator drawer of the utility model The decomposing schematic representation of rail drive component, synchronizing wheel device；

Fig. 6 is the structural representation of motor case in electric sliding rail system of the present utility model；

Fig. 7 is the structural representation at another visual angle of motor case in electric sliding rail system of the present utility model；

Fig. 8 is the structural representation of case cover plate in electric sliding rail system of the present utility model；

Fig. 9 is the structural representation at another visual angle of case cover plate in electric sliding rail system of the present utility model；

Figure 10 is the structural representation of rail plate support in electric sliding rail system of the present utility model；

Figure 11 is the structural representation of driving tooth bar in electric sliding rail system of the present utility model；

Figure 12 is the structural representation of the synchromesh gear of the synchronizing wheel device in electric sliding rail system of the present utility model；

Figure 13 is the knot at another visual angle of the synchromesh gear of the synchronizing wheel device in electric sliding rail system of the present utility model Structure schematic diagram；

Figure 14 is the structural representation of the gear pedestal of the synchronizing wheel device in electric sliding rail system of the present utility model；

Figure 15 is the structural representation of slide track component in electric sliding rail system of the present utility model；

Figure 16 is the structural representation at another visual angle of slide track component in electric sliding rail system of the present utility model；

Figure 17 is the systematic schematic diagram of electric sliding rail system of the present utility model；

Figure 18 is the circuit theory diagrams of the power supply circuit of electric sliding rail system of the present utility model；

Figure 19 is the circuit theory diagrams of the touch start-up circuit of electric sliding rail system of the present utility model；

Figure 20 is the circuit theory diagrams of the control unit of electric sliding rail system of the present utility model；

Figure 21 is drive signal amplifying circuit, H-bridge drive circuit, the speed feedback of electric sliding rail system of the present utility model Circuit, reducing motor, the circuit theory diagrams of push-and-pull start-up circuit；

Figure 22 is that the circuit of the control unit connection limit switch control circuit of electric sliding rail system of the present utility model is former Reason figure；

Figure 23 is drive signal amplifying circuit, H-bridge drive circuit, the speed feedback of electric sliding rail system of the present utility model Circuit, reducing motor, push-and-pull start-up circuit, the circuit theory diagrams of Hall braking circuit；

Figure 24 is the circuit theory diagrams of the control unit connection photoswitch circuit of electric sliding rail system of the present utility model；

Figure 25 is control unit connection photoswitch circuit and the travel switch control of electric sliding rail system of the present utility model The circuit theory diagrams of circuit processed.

Wherein, 10A- actives slide track component, the driven slide track components of 10B-, 11- fixes guide rail, 111- mounting holes, 12- connections Guide rail, 13- rail plates, 131- bridges portion, 132- bridges portion, 1321- screwed holes, 14- auto resilient mountings, 15- fixes guide rail branch Frame, 16- rail plate supports, 161- driving rack connecting portions, 1611- tooth bar mounting holes, 162- refrigerator drawers fastening part, 1621- square holes, 163- rail plate connecting portions, 1631- lugs, 1632- lugs, 16321- elliptical apertures, 164- connecting portions, 165- Refrigerator drawer connecting portion, 20- slide rail drive components, 21- reducing motors, 22- drive gears, 23- drives tooth bar, 231- tooth bars Portion, 232- installation portions, 2321- boss, 24- motor housings, 241- motor cases, 2411- motor accommodating chambers, 2412- cylindrical cavities Hole, 2413- flange connectors, 242- case cover plates, 2421- alignment pins, 2422- electric machine spacing blocks, 2423- elasticity boss, 2424- Grab, the built-in touch pads for touching chip of 25-, 30- Synchronization Component, 31- synchromesh gears, 311- ring grooves, 312- barbs, 32- gear pedestals, 321- chucks, 33- synchronization tooth bars, 34- rack supports, 35- connecting rods, 41- control units, 42- drive signals Amplifying circuit, 43-H bridge drive circuits, 44- speed feedback circuits, 45- touches start-up circuit, 46- push-and-pull start-up circuits, 461- Rectification circuit, 462- comparison circuits, 47- travel switch circuits, 48- Hall start-up circuits, 49- photoswitch circuits.

Specific embodiment

See Fig. 1, a kind of electric sliding rail system for large-capacity refrigerator drawer of the utility model, it include refrigerator drawer, Two groups of slide track components, slide rail drive component 20 and Synchronization Component 30, two groups of slide track components be respectively active slide track component 10A and from Dynamic slide track component 10B, two groups of slide track components 10A, 10B are symmetrically arranged on the both sides of refrigerator drawer, two groups of slide track components 10A, 10B It is connected with the side wall of inner container of icebox respectively, slide rail drive component 20 is installed on active slide track component 10A, active slide track component 10A drives driven slide track component 10B synchronizing movings by Synchronization Component 30.Active slide track component 10A and driven slide track component 10B Structure is identical, and the structure of slide track component is specifically described by taking active slide track component as an example, sees Fig. 2 and Fig. 3, and it includes fixing guide rail 11st, guide rail 12 and rail plate 13 are connected, the fixed rail brackets 15 that fixed guide rail 11 passes through to take the shape of the letter U is installed on inner container of icebox On madial wall, rail plate 13 is connected by rail plate support 16 with refrigerator drawer, and rail plate 13 is by connecting guide rail 12 It is slidably connected with fixed guide rail 11, sees Figure 15；The bottom of fixed guide rail 11 is provided with auto resilient mounting 14.

See Fig. 2 and Fig. 3, slide rail drive component 20 includes drive gear 22, drives tooth bar 23, the built-in touch for touching chip Plate 25, reducing motor 21 and controller, reducing motor 21 are installed on outside the front end of the fixed guide rail 11 of active slide track component 10A Side, drive gear 22 is installed on the output rotation axis of reducing motor 21, drives tooth bar 23 to be installed on active slide track component 10A's On rail plate support 16, the engagement of drive gear 22 is installed on driving tooth bar 23, and the built-in touch pad 25 for touching chip is installed In on the drawer door wall of refrigerator drawer, motor for speed reducer 21 is electricly connected with controller, it is built-in touch chip touch pad 25 with Controller is electricly connected, and controller controls to subtract according to the touch signal that the touch pad 25 of the built-in touch chip for receiving sends Speed motor 21 drives the drive gear 22 to drive rail plate support 16 and rail plate 13 to make level along driving tooth bar 23 It is mobile, so as to realize the automatically controlled opening or closure of refrigerator drawer.

See Fig. 4, reducing motor 21 is installed in motor housing 24, motor housing 24 includes motor case 241 and case lid Plate 242, motor case 241 is provided with motor accommodating chamber 2411, sees Fig. 6 and Fig. 7, and two side bottoms of motor accommodating chamber 2411 outwards prolong Stretch to form flange connector 2413, cylinder lumen pore 2412 is provided with flange connector 2413, reducing motor 21 is placed in motor case 241 Motor accommodating chamber 2411 in, the medial surface of case cover plate 242 is provided with alignment pin 2421 and electric machine spacing block 2422, sees Fig. 8 And Fig. 9, alignment pin 2421 is plugged in cylinder lumen pore 2411 so that case cover plate 242 is covered on motor case 241 and electricity Machine limited block 2422 carries out lateral Displacement to reducing motor 21, by fastened by screw between motor case 241 and case cover plate 242, The lateral surface two ends of case cover plate 242 are respectively symmetrically the grab 2424 for being provided with and stretching out, and case cover plate 242 be provided with to The elastic boss 2423 of outside protrusion, the grab at the two ends of case cover plate 242 hooks the front end outer side together in fixed guide rail 11 while bullet Property boss 2423 is flush-mounted in the mounting hole 111 of fixed guide rail 11.

Rail plate support 16 is lath-shaped, and slide rail rail brackets 16 includes driving rack connecting portion 161, refrigerator drawer tight Gu portion 162 and rail plate connecting portion 163, the side lower vertical of the broadside of refrigerator drawer fastening part 162 are connected with cunning The top of dynamic guide rail connecting portion 163, opposite side is connected by connecting portion 164 with rack connecting portion 161 is driven, and sees Figure 10, is driven Tooth bar 23 is installed on the downside surface for driving rack connecting portion 161, and rail plate support 16 is pacified by refrigerator drawer fastening part 162 Bottom side loaded on refrigerator drawer, it is connected with rail plate 13 by rail plate connecting portion 163；Rail plate connecting portion 163 front end is additionally provided with refrigerator drawer connecting portion 165, and refrigerator drawer connecting portion 165 is fixed by screw with refrigerator drawer door.

Driving tooth bar 23 includes that L-shaped right angle connects integral tooth-strip part 231 and installation portion 232, sees Figure 11, installation portion Boss 2321 is provided with 232 top surface, drives correspondence on rack connecting portion 161 to be provided with tooth bar mounting hole 1611, installation portion 232 The insertion of boss 2321 being riveted on the bottom surface of the driving rack connecting portion 161 of rail plate support 16 and installation portion 232 is driven In the tooth bar mounting hole 1611 of carry-over bar connecting portion 161；

Square hole 1621 is provided with refrigerator drawer fastening part 162, the bottom side of refrigerator drawer is provided with buckle, buckle spiral-lock In in square hole 1621；

Rail plate connecting portion 163 is provided with two lugs 1631,1632, sees Figure 10, is set on the lateral surface of rail plate 13 There are two outwardly bridge portions 131,132, see Fig. 5 and Figure 15, shape between the lateral surface of rail plate 13 and bridge portion 131,132 Into middle cavity, two lugs 1631,1632 of rail plate connecting portion 163 insert respectively two bridge portions 131 of rail plate, In the 132 middle cavitys formed with lateral surface, see on Fig. 3, and bridge portion 132 that to be provided with screwed hole 1321 corresponding with the bridge portion 132 Elliptical aperture 16321 is provided with the lug 1632 of rail plate connecting portion, set screw passes through screwed hole 1321, elliptical aperture 16321 Rail plate 13 and rail plate connecting portion 163 are positioned into fastening.

Synchronization Component includes connecting rod 35 and two groups of synchronizing wheel devices, and two groups of synchronizing wheel devices are respectively arranged in refrigerator drawer two On active slide track component 10A, 10B of side, synchronizing wheel device includes synchromesh gear 31, synchronous tooth bar 33, and synchromesh gear 31 is installed In on gear pedestal 32, gear pedestal 32 is installed in the Basolateral of rail plate 13, sees Fig. 3 and Fig. 4, and synchronous tooth bar 33 is installed In the lateral surface of rack support 34, rack support 34 is installed on the bottom of fixed rail brackets 15, and the engagement of synchromesh gear 31 is installed In on synchronous tooth bar 33, the synchronized links of connecting rod 35 are passed through between two groups of synchronizing wheels of synchronizing wheel device；See Figure 14, gear pedestal 32 Chuck 321 is provided with, the one side of synchromesh gear 31 is provided with ring groove 311, sees Figure 12 and Figure 13, the bottom surface edge of circular groove 311 Barb 312 is circumferentially uniformly arranged, barb 312 hooks the chuck 321 for sharing gear pedestal 32.

See Figure 17, controller include control unit 41 and electricly connected with control unit drive signal amplifying circuit 42, H-bridge drive circuit 43, speed feedback circuit 44, touch start-up circuit 45,

Wherein control unit is acted for 41 control reducing motors 21, and control unit is single-chip microcomputer U1 in the present embodiment；

Drive signal amplifying circuit 42, for amplifying the PWM that speed governing is carried out to reducing motor 21 sent by single-chip microcomputer U1 Control signal；

H-bridge drive circuit 43 is connected with drive signal amplifying circuit 42, the steering for controlling reducing motor 21；

Speed feedback circuit 44 is connected with H-bridge drive circuit 43, for the speed feedback of front deceleration motor 21 to be given Single-chip microcomputer U1；

Touching start-up circuit 45 is used to pass to human body to the touch signal that the touch pad 25 of built-in touch chip is produced Single-chip microcomputer U1 is acted controlling reducing motor 21.

See Figure 20,1 port of single-chip microcomputer U1 connects 1 port of TJC3-4A type connectors T3, and 11 ports of single-chip microcomputer U1 connect 3 ports of TJC3-4A type connectors T3 are connect, 1 port of TJC3-4A type connectors T3 is grounded after connecting electric capacity C25, TJC3-4A 1 port of type connector T3 is also connected with 5v power supplys, and 2 ports and 4 ports of TJC3-4A type connectors T3 are grounded respectively, single-chip microcomputer 13 ports of U1 connect 4 ports of connection TJC3-5A type connectors T4 after resistance R14, the 13 ports connection resistance of single-chip microcomputer U1 4 ports of TJC3-5A type connectors T4 are connected after R14,13 ports of single-chip microcomputer U1 connect TJC3-5A types after connecting resistance R13 5 ports of connector T4, the 2 ports connection+5v power supplys of TJC3-5A type connectors T4,1 port of TJC3-5A type connectors T4 The 3 ports ground connection of connection Vpp, TJC3-5A type connectors T4.

See Figure 21, electric sliding rail system of the present utility model includes push-and-pull start-up circuit 46, push-and-pull start-up circuit 46 and list Piece machine U1 is electricly connected, and push-and-pull start-up circuit includes the rectification circuit 461 and comparison circuit 462 that are connected, rectification circuit 461 with Reducing motor 21 is connected, and comparison circuit 462 is connected with single-chip microcomputer U1, and rectification circuit 461 is used for push-and-pull rail plate 13 And making the positive and negative voltage conversion that reducing motor 21 is produced into comparison signal, comparison circuit 462 is used for comparison signal and preset value It is compared and produces push pull signal to pass to single-chip microcomputer U1 to control reducing motor 21 to act.Rectification circuit 461 includes rectification Bridge BD2, comparison circuit 462 includes comparator U4B, two inputs of rectifier bridge BD2 connect respectively reducing motor 1 port and 2 ports, are connected with electric capacity C15, electric capacity C15 ground connection, one end connection electricity of electric capacity C15 between two output ends of rectifier bridge BD2 One end of resistance R33, one end of one end connection resistance R34 of electric capacity C15 and the positive pole of voltage-stabiliser tube Z03, the other end of resistance R33, It is grounded after the other end of resistance R34, the electric capacity C14 of the negative pole connection comparison circuit of voltage-stabiliser tube Z03, the other end of resistance R33, electricity Hinder the other end of R34, the negative pole of voltage-stabiliser tube Z03 to be also connected with resistance R32, resistance is connected after resistance R32 connection comparators U4B One end of R29, is grounded after the other end connection electric capacity C17 of resistance R29, and the other end of resistance R29 is also connected with the 10 of single-chip microcomputer U1 Port.

See Figure 21, electric sliding rail system of the present utility model includes drive signal amplifying circuit 42, and drive signal amplifies electricity Road 42 includes triode Q1, Q2, Q3, Q4, Q5, Q6, and the base stage of triode Q1 connects 6 ports of single-chip microcomputer U1, triode Q1's Grounded emitter, the base stage of the colelctor electrode connecting triode Q2 of triode Q1, the one of the emitter stage connection resistance R17 of triode Q2 End, 2 ports of the triode D2 of one end and H-bridge drive circuit of the other end connection resistance R21 of resistance R17, resistance R21's is another One end is grounded, the colelctor electrode connection+12v power supplys of triode Q2；5 ports of the base stage connection single-chip microcomputer U1 of triode Q3, three poles The grounded emitter of pipe Q3, one end of the emitter stage connection resistance R18 of triode Q3, the other end connection resistance R22 of resistance R18 One end and H-bridge drive circuit triode D1 4 ports, resistance R22 the other end connection+12v power supplys；The base of triode Q4 Pole connects 8 ports of single-chip microcomputer U1, the grounded emitter of triode Q4, the base of the colelctor electrode connecting triode Q5 of triode Q1 Pole, one end of the emitter stage connection resistance R19 of triode Q5, one end other end of resistance R19 connects one end and the H of resistance R23 2 ports of the triode D4 of bridge drive circuit, the other end ground connection of resistance R23；The 7 of the base stage connection single-chip microcomputer U1 of triode Q6 Port, the grounded emitter of triode Q6, one end of the emitter stage connection resistance R20 of triode Q6, the other end of resistance R20 connects One end of connecting resistance R24 and 4 ports of the triode D3 of H-bridge drive circuit, the other end connection 12v power supplys of resistance R24.

See Figure 21, H-bridge drive circuit 43 includes triode D1, D2, D3, D4, the 1 port connection speed feedback of triode D2 Circuit, connects after 7, the 8 ports difference connecting valves SF of the 2 ports connection resistance R17, the triode D2 of triode D2 and slows down 1 port of motor；3 ports of 12v power supplys connecting triode D1 after diode D6 ,+12v power supplys connect three after resistance R22 Distinguish 1 port of connection reducing motor after connecting valve SF in 4 ports of pole pipe D1,5,6 ports of triode D1；Triode D4's 1 port connects speed feedback circuit, and 2 ports of triode D4 connect resistance R19, and 7,8 ports of triode D4 connect deceleration respectively 2 ports of motor；3 ports of 12v power supplys connecting triode D4 after diode D6 ,+12v power supplys connect three after resistance R24 Distinguish 2 ports of connection reducing motor after connecting valve SF in 4 ports of pole pipe D1,5,6 ports of triode D3.

See Figure 21, speed feedback circuit 44 includes resistance RS1, RS2 in parallel, 1 port of triode D2 and triode D4 1 port connect be grounded after resistance RS1, RS2 respectively, 1 port of triode D2 and 1 port of triode D4 connect resistance respectively Concatenation operation amplifier U4A reconnects resistance R25,9 ports of resistance R25 connection single-chip microcomputers U1 after R25.

See Figure 19, touching start-up circuit 45 includes the built-in touch chip U5 of touch pad 25, touches chip U5 and touch pad 25 connections, touch chip U5 and pass through connector TJC3-3A types connector T5, TJC3-4A type connector T3 and Single-chip Controlling list The 11 ports connection of first U1.

By touching the setting of start-up circuit 45, electric sliding rail system of the present utility model can realize touching open or Touch closing refrigerator drawer.

The touch that the utility model is described below for the electric sliding rail system of large-capacity refrigerator is opened and closed the course of work：

Touch and open：When needing to open refrigerator drawer, human body carries out touch operation to touch pad 25, and touch pad 25 is built-in The human body touch signal inputs that will receive of touch chip U5 receive enabling to 11 ports of single-chip microcomputer U1, i.e. single-chip microcomputer U1 , now there are 0V low level signals on 11 ports of single-chip microcomputer U1 in signal, and single-chip microcomputer U1 makes 7 ports immediately（C Ctrl）Output+ 5V high level, now C Ctrl high level signals make triode Q6 turn on, triode Q6 again trigger triode D4 conducting；Single-chip microcomputer U1 makes 6 ports again（B PWM）Also+5V high level is exported, B PWM high level signals turn on triode Q1, Q2, triode Q1, Q2 trigger triode D2 conductings, the flow direction of such electric current again：+ 12V → triode Q6 → triode D4 → the port of reducing motor 2 → 1 port of reducing motor → triode D2 → resistance Rs1, Rs2 → ground connection, so that reducing motor 21 is inverted at full speed, and by installing The active for driving afterwards and driving tooth bar 23 and install driving tooth bar 23 is rotated in the drive gear 22 on the output shaft of reducing motor 21 The rail plate support 16 of slide track component 10A is moved, while the rail plate support 16 drives rail plate 13 to move through The rail plate synchronizing moving of the synchronous driven slide track component 10B of drive of Synchronization Component 30, realizes that the full speed of refrigerator drawer is opened；

In order to prevent reducing motor from causing to damage to slide rail when opening refrigerator drawer at full speed, single-chip microcomputer U1 presets rail plate 13 with reducing motor full speed rotating opening to from maximum spacing 10cm when required time t1, be initially powered up opening from reducing motor 21 Start building as when from single-chip microcomputer U1 carry out timing, when the run time of reducing motor 21 reaches t1,6 ports of single-chip microcomputer U1（B PWM）One modulated signal of pulsewidth 50% of output, B PWM modulation signals make triode Q1, Q2 by modulated conducting and make three poles Pipe D4 pipes are turned on by modulation, cause reducing motor 21 to be run with 50% speed, and rail plate is with refrigerator drawer door in the electricity that slows down Under the drive of machine 21, also gently mobile to refrigerator outside, until drawer door is reached completely, maximum is spacing, i.e., drawer door is opened completely Open；Wherein when electric current flows through resistance Rs1 and Rs2, exported after the two ohmically pressure drops are amplified by U4A operational amplifiers Over Current signals to 9 ports of single-chip microcomputer U1, single-chip microcomputer U1 constantly sample Over Current signals and constantly with The preset value of single-chip microcomputer U1（50% motor speed value）Compare, when Over Current signal values >=preset value, that is, think now Motor rotation blockage, single-chip microcomputer U1 makes 7 ports immediately（C Ctrl）Output 0V low level signals, 0V low level signals cut triode Q6 Only, triode Q6 shut-off triodes D4；Single-chip microcomputer U1 makes 6 ports again（B PWM）Pin also exports 0V low level signals, 0V low levels Signal low level signal blocks triode Q1, Q2, triode Q1, Q2 shut-off triode D2 pipes, so that reducing motor 21 Out of service immediately, the opening completely of rail plate 13 is that refrigerator drawer is opened completely.

Meanwhile, the utility model electric sliding rail system can also be suspended during refrigerator drawer is opened opens, after stopping The action for opening refrigerator drawer can also again be continued executing with.

During above-mentioned refrigerator drawer door is opened by touch operation, when touch pad 25（Touch Pad）Again by Touching, touches 11 ports that the touch signal is input to chip U5 single-chip microcomputer U1, and single-chip microcomputer U1 is to receive to stop what is opening the door , now there are 0V low level signals on 11 ports of single-chip microcomputer U1 in signal, and single-chip microcomputer U1 makes 7 ports immediately（C Ctrl）, 6 ports （B PWM）Pin exports 0V low levels, identical with control process above, turns off triode D4 pipes and triode D2, and slow down electricity Machine 21 is out of service immediately, and the rail plate of active slide track component 10A stops movement, and refrigerator drawer door is opened the door and suspended；Work as someone Touch pad 25 is touched again（Touch Pad）, the transmission of touch signal is identical with the above, and signal is ultimately transferred to single-chip microcomputer U1's 11 ports, make 11 ports for 0V low level signals, and single-chip microcomputer U1 programs may proceed to perform original open door procedure, and single-chip microcomputer continues defeated Go out original signal, circuit continues original control, and motor also may proceed to original direction and rotate, and continue door opening action just now, Until drawer door opens the door terminating.Repeatedly someone Touch Pad plates can be touched in the process, single-chip microcomputer U1 repeats to control above Process, refrigerator drawer door door opening action also can repeatedly suspend and start, until opening the door completely.

Touch and close：When closing refrigerator drawer door is needed, when template 25 is touched in touching（Touch Pad）When, touch chip The touch signal is input to U5 11 ports of single-chip microcomputer U1, now 0V low level signals occurs on 11 ports of single-chip microcomputer U1, I.e. single-chip microcomputer U1 receives the shutdown signal of refrigerator drawer door, when single-chip microcomputer U1 receive 11 ports for 0V low level signals or After the port of person 10 receives+5V high level pp_AD signals, that is to say, that after single-chip microcomputer U1 receives above-mentioned signal of closing the door, monolithic Machine U1 makes 5 ports immediately（A Ctrl）Pin exports+5V high level, and A Ctrl high level signals turn on triode Q3, triode Q3 trigger triode D1 conductings again；Single-chip microcomputer U1 makes 8 ports again（D PWM）Also 50% adjustable pulse width signal is exported, D PWM are high Level signal makes triode Q4, Q5 also by modulated conducting, triode Q4, Q5 trigger triode D3 conductings；Such stream of electric current To：+ 12V → triode Q3 → triode D1 → 1 port of reducing motor → 2 ports of reducing motor → triode D3 → resistance Rs1, Resistance Rs2 → ground connection；Make reducing motor 21 with 50% speed rotate forward, the output shaft of reducing motor 21 drive drive gear 22 rotate from And order about and drive tooth bar 23 to drive the rail plate support 16 of active slide track component 10A, rail plate 13 to be moved in refrigerator, while Driven slide track component 10B synchronous workings are so as to drive refrigerator drawer door gently to inner container of icebox under the drive of Synchronization Component 30 Mobile, since single-chip microcomputer U1 carry out timing acted reducing motor 21 when, when reducing motor 21 is just conveyed to monolithic with 50% speed During the default time t2 of machine U1, single-chip microcomputer U1 makes 8 ports again（D PWM）Also+5V high level signals, D PWM high level letter are exported Number triode Q4, Q5 is set to be turned on by 100% pulsewidth, triode Q4, Q5 trigger triode D4 is turned on by 100% pulsewidth, is now slowed down Motor is run with maximum operational speed, and drawer door is moved with most fast speed under the drive of motor to inner container of icebox；Work as drawer Door top is shut completely to inner bag inwall, i.e. drawer door；In above-mentioned drawer door closing process, reducing motor electric current flows through resistance Rs1, resistance Rs2, Over Current signals are exported after the two ohmically pressure drops are amplified through U4A operational amplifiers module To 9 ports of single-chip microcomputer U1, the Over Current signal values of continuous 9 ports of sampling of single-chip microcomputer U1, and with default reducing motor 100% tachometer value is compared, when a certain Over Current signal values are more than and turning equal to the default reducing motor 100% During speed value, single-chip microcomputer U1 is to judge that now reducing motor occurs stall, and single-chip microcomputer U1 makes 5 ports immediately（A Ctrl）, 8 ports（D PWM）Output 0V low levels, turn off triode D1 and triode D4, and reducing motor is stopped operating, and now refrigerator drawer door is closed completely On.

Meanwhile, the utility model electric sliding rail system can also refrigerator drawer open or close during pause switch Close, the action of closing refrigerator drawer can also be again continued executing with after stopping.

In above-mentioned refrigerator drawer door closing process, when touch pad 25（Touch Pad）When, touch chip U5 and touch this To 11 ports of single-chip microcomputer U1, single-chip microcomputer U1 is to receive the signal that pause is closed the door to signal input, now 11 ends of single-chip microcomputer U1 There are 0V low level signals on mouthful, single-chip microcomputer U1 makes 5 ports immediately（A Ctrl）Output 0V low levels, A Ctrl low level signals End triode Q3, triode Q3 shut-off triode D3 pipes；Single-chip microcomputer U1 makes 8 ports again（D PWM）Also the low electricity of 0V is exported Flat, D PWM low level signals end triode Q4, Q5, triode Q4, Q5 shut-off D4 pipes, cause reducing motor 21 immediately Stop operating, refrigerator drawer door closes pause；When someone touches touch pad 25 again（Touch Pad）When, with above by touch Touch template 25（Touch Pad）Process to drive reducing motor 21 to work is the same, and single-chip microcomputer U1 receives closing refrigerator and takes out The signal of drawer door, continues to control reducing motor 21 to rotate forward until refrigerator drawer door is closed completely.

By the setting of push-and-pull start-up circuit 46, electric sliding rail system of the present utility model can realize people pull or The function of unlatching or closing assisted refrigerator drawer is aided in during person's closing refrigerator drawer.

When auxiliary opens refrigerator drawer, its detailed process is：User gently draws refrigerator drawer door, due to refrigerator drawer both sides It is connected with rail plate 13 so as to band by active slide track component 10A, the rail plate support 16 of driven slide track component 10B respectively Dynamic rail plate 13, connection guide rail 12 are moved from inside to outside in fixed guide rail 11 together, and the slide rail of wherein active slide track component 10A is led The synchronizing moving of rail plate support 16 that rail 13 is connected when sliding with the rail plate 13 causes to be installed on the rail plate branch Driving tooth bar 23 on frame 16 drives the engagement rotation of drive gear 22, drive gear 22 to drive reducing motor 21 to rotate, now Reducing motor 21 produces a voltage signal more than 0V, U4B as generator, now rectifier bridge BD2 conductings on electric capacity C14 Comparator exports the 10 ports of+5V high level pp_AD to single-chip microcomputer U1, and now program sends instruction makes 7 ports of single-chip microcomputer U1 （C Ctrl）Pin exports+5V high level, and C Ctrl high level signals turn on triode Q6, triode Q6 trigger triodes again D4, turns on triode D4；Single-chip microcomputer U1 makes 6 ports again（B PWM）Also+5V high level is exported, B PWM high level signals make three Pole pipe Q1, Q2 is turned on, and trigger triode D2 turns on triode D2 again for triode Q1, Q2；Such flow direction of electric current：+ 12V → tri- Pole pipe Q6 → triode D4 → 2 ports of reducing motor → 1 port of reducing motor → triode D2 → resistance Rs1, Rs2 → ground connection, So that motor reversal；When electric current flows through resistance Rs1 and Rs2, after the two ohmically pressure drop U4A operational amplifiers amplify To 9 ports of single-chip microcomputer U1, single-chip microcomputer U1 constantly samples Over Current signals and not to output Over Current signals The disconnected preset value with single-chip microcomputer U1（50% motor speed value）Compare, when Over Current signal values >=preset value, that is, think Now motor rotation blockage, single-chip microcomputer U1 makes 7 ports immediately（C Ctrl）Output 0V low levels, C Ctrl low level signals make triode Q6 ends, triode Q6 shut-off triodes D4；Single-chip microcomputer U1 makes 6 ports again（B PWM）Pin also exports 0V low levels, and B PWM are low Level signal ends triode Q1, Q2, triode Q1, Q2 shut-off triode D2, so that reducing motor 21 stops fortune immediately OK, the opening completely of rail plate 13 is that refrigerator drawer is opened completely；

During above-mentioned refrigerator drawer door is opened, single-chip microcomputer U1 constantly samples the Over that 9 ports receive always Current signals, and by the Over Current signal values, constantly 100% motor speed value default with single-chip microcomputer U1 is carried out Compare, barrier is encountered or during by resistance when refrigerator drawer door, the Over Current signal values can be more than default During 100% motor speed value, that is, judge now reducing motor stall, single-chip microcomputer U1 makes 7 ports immediately（C Ctrl）、6（B PWM）Port exports 0V low levels, turns off triode D4 and triode D2, and reducing motor 21 is out of service immediately, refrigerator drawer door Also door opening action is stopped.

During closing assisted refrigerator drawer, its detailed process is such：When user inwardly touches refrigerator drawer door, actively The rail plate 13 of slide track component 10A drives and drives tooth bar 23 also to being moved in refrigerator, drives tooth bar 23 to drive drive gear 22 Rotation, drive gear 22 drives reducing motor 21 to rotate, and now motor is generator, rectifier bridge BD2 conductings, on electric capacity C14 A voltage signal more than 0V, comparator U4B is produced to export+5V high level pp_AD signals, i.e. monolithic to the port of single-chip microcomputer 10 Machine U1 receives the shutdown signal of refrigerator drawer door.11 ports are received as single-chip microcomputer U1 is 0V low level signals or 10 ends After mouth receives+5V high level pp_AD signals, that is to say, that after single-chip microcomputer U1 receives above-mentioned signal of closing the door, single-chip microcomputer U1 stands Even if 5 ports（A Ctrl）Pin exports+5V high level, and A Ctrl high level signals turn on triode Q3, and triode Q3 is touched again The D1 conductings of hair triode；Single-chip microcomputer U1 makes 8 ports again（D PWM）Also 50% adjustable pulse width signal, D PWM high level letter are exported Number make triode Q4, Q5 also by modulated conducting, triode Q4, Q5 trigger triode D3 conductings；Such flow direction of electric current：+12V → triode Q3 → triode D1 → 1 port of reducing motor → 2 ports of reducing motor → triode D3 → resistance Rs1, resistance Rs2 → ground connection；Reducing motor 21 is set to be rotated forward with 50% speed, the output shaft of reducing motor 21 drives drive gear 22 to rotate so as to order about Carry-over bar 23 drives the rail plate support 16 of active slide track component 10A, rail plate 13 to be moved in refrigerator, while in synchronization group Driven slide track component 10B synchronous workings are single so as to drive refrigerator drawer door gently to be moved to inner container of icebox under the drive of part 30 Since piece machine U1 carry out timing acted reducing motor 21 when, and when reducing motor 21, to be just conveyed to single-chip microcomputer U1 with 50% speed pre- If time t2 when, single-chip microcomputer U1 makes 8 ports again（D PWM）Also+5V high level signals are exported, D PWM high level signals make three Pole pipe Q4, Q5 by 100% pulsewidth turn on, triode Q4, Q5 trigger triode D4 by 100% pulsewidth conducting, now reducing motor with Maximum operational speed is run, and drawer door is moved with most fast speed under the drive of motor to inner container of icebox；When drawer door top is arrived Inner bag inwall, i.e. drawer door are shut completely；In above-mentioned drawer door closing process, reducing motor electric current flows through resistance Rs1, resistance Rs2, Over Current signals to single-chip microcomputer are exported after the two ohmically pressure drops are amplified through U4A operational amplifiers module 9 ports of U1, single-chip microcomputer U1 constantly sampling 9 ports Over Current signal values, and with default reducing motor 100% turn Fast value is compared, when a certain Over Current signal values more than and equal to the default reducing motor 100% tachometer value when, Single-chip microcomputer U1 is to judge that now reducing motor occurs stall, and single-chip microcomputer U1 makes 5 ports immediately（A Ctrl）, 8 ports（D PWM）It is defeated Go out 0V low levels, turn off triode D1 and triode D4, reducing motor is stopped operating, and now refrigerator drawer door is shut completely.

And in above-mentioned refrigerator drawer door closing process, drawer door encounters barrier or during by external drag, slow down electricity There is stall phenomenon in machine 21, reducing motor electric current flows through resistance Rs1 and resistance Rs2, be transported through U4A in the two ohmically pressure drops Calculate after amplifier module amplifies and export on Over Current signals to 9 ports of single-chip microcomputer U1, single-chip microcomputer U1 is constantly sampled Over Current signal values are simultaneously compared with the tachometer value of the default reducing motor 100%, as a certain Over Current During the tachometer value of the signal value >=default reducing motor 100%, that is, think now motor rotation blockage, single-chip microcomputer U1 makes 5 ends immediately Mouthful（A Ctrl）Output 0V low levels, A Ctrl low level signals end triode Q3, triode Q3 shut-off triodes D1；It is single Piece machine U1 makes 8 ports again（D PWM）Also 0V low levels are exported, D PWM low level signals end triode Q4, Q5, triode Q4, Q5 turn off triode D3, cause reducing motor 21 to stop operating immediately, and drive gear 22 also stops operating, active slide rail group The rail plate of part 10A stops movement, and refrigerator drawer door is that stopping is closed the door action.

See Figure 22, electric sliding rail system of the present utility model can access 47 pairs, travel switch composition travel switch circuit and subtract Speed motor is braked, and the bottom of the fixed guide rail 11 of active slide track component 10A is provided with control travel switch of closing the door, active slide rail The anterior end of the rail plate 13 of component 10A is provided with enabling control travel switch, and single-chip microcomputer U1 has electricly connected enabling row Cheng Kaiguan LSW2, close the door travel switch LSW1, and the control travel switch LSW2 and control travel switch LSW1 that closes the door that opens the door leads to respectively Connector T2, T1 connection single-chip microcomputer U1, enabling travel switch interface LSW2 transmission enabling information is crossed to come to slowing down to control unit Motor braking, the travel switch LSW1 that closes the door transmits information of closing the door to brake reducing motor to control unit.1 end of connector T2 3 ports of mouth connection TJC3-5A type connectors T4,2 ports of connector T2 connect 5 ports of TJC3-5A type connectors T4, and 2 ports of connector T2 connect 12 ports of single-chip microcomputer U1；1 port of connector T1 connects 3 ends of TJC3-5A type connectors T4 Mouthful, 2 ports of connector T1 connect 4 ports of TJC3-5A type connectors T4, and 2 ports of connector T1 connect single-chip microcomputer U1 13 ports.

Close the door the course of work of travel switch LSW1：When drawer is shut completely, the travel switch LSW1 that closes the door closures are single Occur 0V low level signals, 5 ports of single-chip microcomputer U1 and 8 ports output low level signal on the port pin of piece machine 13, turn off three poles Pipe D1 and triode D3, finally causes that motor stalls, door closing procedure terminate.

The course of work of enabling travel switch LSW2：When drawer is opened completely, enabling travel switch LSW2 closures, monolithic Occur 0V low level signals on the port pin of machine 12, single-chip microcomputer U1 causes 7 ports and 6 port pin output low level signals, shut-off three Pole pipe D4 and triode D2, finally causes that motor stalls, door opening process terminate.

See Figure 23, electric sliding rail system of the present utility model can access Hall original paper composition Hall start-up circuit 48 and realize Braking, the Hall element hall that reducing motor is connected by connector, Hall element hall is electricly connected with control unit, Hall Element hall makes reducing motor per revolution produce a pulse signal and the pulse signal is passed into control unit, control Unit processed is counted to the pulse signal for receiving, and when the pulse signal quantity that control unit is received, to reach rail plate complete Control unit controls reducing motor during the pulse number that the required reducing motor of full opening or completely closure is rotated and produced Stopping is acted.

One end of 1 port connecting valve SF of connector, 5,6 ports of the 2 ports difference connecting triodes D3 of connector And 7,8 ports of triode D4,2 ports of connector are also connected with the interfaces of rectifier bridge BD2 mono-, and the 3 ports connection of connector is whole Another interface of stream bridge BD2, the 4 ports connection Vcc of connector, the 5 ports connection Hall original paper hall of connector, Hall original paper With 3 ports of single-chip microcomputer, the per revolution of reducing motor 21 is issued by a pulse, and pulse signal is defeated by the port of single-chip microcomputer 3, in advance Refrigerator doors are first measured from opening the door to closing the door（Or from closing the door to enabling）Whole process needs how many pulses, by this umber of pulse Exist in single-chip microcomputer.

When motor makees door opening action with slide rail and refrigerator doors, by 3 port counts of single-chip microcomputer, when numerical value >=exist During numerical value in single-chip microcomputer, single-chip microcomputer U1 causes 7 ports and 6 port pin output low level signals, turns off triode D4 and three poles Pipe D2, finally causes that motor stalls, door opening process terminate；

When motor closes the door action with slide rail and refrigerator doors, by 3 port counts of single-chip microcomputer, when numerical value >=exist During numerical value in single-chip microcomputer, single-chip microcomputer U1 causes 5 ports and 8 port pin output low level signals, turns off triode D1 and three poles Pipe D3, finally causes that motor stalls, door closing procedure terminate.

See Figure 24, electric sliding rail system of the present utility model can access optoelectronic switch, on the door wall of refrigerator drawer also Optoelectronic switch is provided with, optoelectronic switch is connected by photoswitch circuit 49 with control unit, photoswitch circuit passes through light Range information is simultaneously passed to the braking that control unit controls reducing motor by electric switch detecting distance information, is established by cable by setting light Pass ensures safe opening or the closing of refrigerator drawer, it is to avoid user closely sends out excessively when refrigerator drawer is opened apart from refrigerator drawer Raw accident collision.

Photoswitch circuit includes optoelectronic switch U7, and 1 port of optoelectronic switch U7 connects the 2 of TJC3-5A type connectors T4 Port, 2 ports of optoelectronic switch U7 connect 2 ports of connection TJC3-5A type connectors T4 after resistance R52, the 2 of optoelectronic switch U7 Port is also connected with 4 ports of TJC3-5A type connectors T4, and 3 ports of optoelectronic switch U7 connect TJC3-5A after connecting resistance R53 2 type connector T4 ports（What INT is）, 4 ports of optoelectronic switch U7 connect TJC3-5A type grafting after connecting resistance R51 2 ports of device T4,4 ports of optoelectronic switch U7 are also connected with 4 ports of TJC3-5A type connectors T4,5 ports of optoelectronic switch U7 One end, one end of electric capacity C52, the negative pole of voltage-stabiliser tube ZD2 of electric capacity C51, one end of electric capacity C51, the one of electric capacity C52 are connected respectively End, 2 ports of the negative pole of voltage-stabiliser tube ZD2 also with TJC3-5A type connectors T4 are connected, the other end of C51, electric capacity C52 it is another One end, the positive pole of voltage-stabiliser tube ZD2 are grounded respectively, and 8,9 ports of optoelectronic switch U7 are grounded respectively.

The course of work of optoelectronic switch：During enabling, optoelectronic switch U7 work, single-chip microcomputer U1 can always detect optoelectronic switch unit The signal of part U7, when people apart from drawer door is within 10cm when, optoelectronic switch U7 sends pulse train signal to the 12 of single-chip microcomputer Port and 13 ports, single-chip microcomputer once detect this signal, and single-chip microcomputer makes 7 ports export 0V low level signals, the low electricity of 0V immediately Ordinary mail number ends triode Q6, triode Q6 shut-off triodes D4；Single-chip microcomputer makes 6 ports also export 0V low level signals again, 0V low level signals make triode Q1, Q2 cut-off, and triode Q1, Q2 shut-off triode D2 causes reducing motor to stop fortune immediately OK, drawer door is also made to stop automatically.When human body again away from drawer door when, i.e., when human body apart from drawer door more than 10cm when, i.e., Optoelectronic switch element does not detect someone's signal, and optoelectronic switch U7 does not send pulse train signal to 12 ports of single-chip microcomputer Pin and 13 ports, single-chip microcomputer do not detect this signal, after time delay 2s kinds, are again started up door opening action, invert reducing motor, The action that continuation was opened the door just now.

Additionally, under door opening state, not having any signal to occur in the 3min times, i.e. there is not 0V in the port of single-chip microcomputer 11 There are not+5V signals in low level signal, or 10 ports, that is, be not connected to any signal of closing the door, i.e., unmanned to touch Touch Pad Plate or nobody when gently promoting drawer door, now single-chip microcomputer performs action of closing the door, it is to avoid refrigerator drawer is opened for a long time.

Electric sliding rail system of the present utility model is provided with power supply plate and power module of voltage regulation, sees Figure 18, voltage-stabilized power supply Module is DC+5V Voltage stabilizing modules, and DC+5V Voltage stabilizing modules connect through two TJC3 type connectors T6, T7 connection 12V power supplys, and Output+5V voltages, DC+5V Voltage stabilizing modules will+12V voltage conversions into+5V, so that single-chip microcomputer and each chip power are used.

See Figure 25, the another embodiment of electric sliding rail system of the present utility model, it applies travel switch and light Electric switch, travel switch transmits enabling information respectively and information of closing the door to brake reducing motor to control unit, optoelectronic switch Range information is simultaneously passed to control unit control reducing motor by electric circuit inspection range information.

See Figure 23,24, the another embodiment of electric sliding rail system of the present utility model, its apply optoelectronic switch and Hall original paper, the Hall element hall that reducing motor is connected by connector, Hall element hall is electricly connected with control unit, Hall element hall makes reducing motor per revolution produce a pulse signal and the pulse signal is passed into control list Unit, control unit is counted to the pulse signal for receiving, when the pulse signal quantity that control unit is received reaches slip Control unit control subtracts during the pulse number that guide rail is opened completely or reducing motor required for closure is rotated and produced completely Speed motor stopping is acted；Optoelectronic switch is connected by photoswitch circuit with control unit, and photoswitch circuit passes through photoelectricity Range information is simultaneously passed to the braking that control unit controls reducing motor by switch detecting distance information.

Claims (16)

1. a kind of electric sliding rail system for large-capacity refrigerator drawer, it includes refrigerator drawer and two groups of slide track components, described Two groups of slide track components are symmetrically arranged on the both sides of the refrigerator drawer, and the slide track component is connected with the side wall of inner container of icebox, institute Stating slide track component includes fixed guide rail, connection guide rail and rail plate, and the fixed guide rail is installed on by fixed rail brackets On the madial wall of inner container of icebox, the rail plate is connected by rail plate support with refrigerator drawer, and the rail plate leads to The connection guide rail is crossed to be slidably connected with the fixed guide rail, it is characterised in that：It is also including slide rail drive component and together Step component, two groups of slide track components are respectively active slide track component and driven slide track component, and the slide rail drive component is installed In on the active slide track component, the active slide track component drives the driven slide track component synchronization by the Synchronization Component Mobile, the slide rail drive component drives the active slide track component to act using touch control by the way of, while the active Slide track component drives the driven slide track component synchronization action to realize the opening or closure of refrigerator drawer by Synchronization Component.

2. a kind of electric sliding rail system for large-capacity refrigerator drawer according to claim 1, it is characterised in that：It is described Slide rail drive component includes drive gear, drives tooth bar, the touch pad of built-in touch chip, reducing motor and controller, described Reducing motor is installed on the front end outer side of the fixed guide rail of the active slide track component, and the drive gear is installed on the deceleration On the output rotation axis of motor, the driving tooth bar is installed on the rail plate support of the active slide track component, the drive Moving gear engagement is installed on the driving tooth bar, and the built-in touch pad for touching chip is installed on the drawer door of refrigerator drawer On wall, the motor for speed reducer, the touch pad of built-in touch chip are electricly connected with the controller respectively, the controller root The reducing motor is controlled to drive the drive according to the touch signal that sends of touch pad of the described built-in touch chip for receiving Moving gear is moved horizontally along the driving rack drives rail plate support and rail plate, so as to realize refrigerator drawer Automatically controlled opening or closure.

3. a kind of electric sliding rail system for large-capacity refrigerator drawer according to claim 2, it is characterised in that：It is described Reducing motor is installed in motor housing, and the motor housing includes motor case and case cover plate, and the motor case is provided with Motor accommodating chamber, two side bottoms of the motor accommodating chamber stretch out to form flange connector, are provided with the flange connector Cylinder lumen pore, the reducing motor is placed in the motor accommodating chamber of the motor case, is set on the medial surface of the case cover plate There are alignment pin and an electric machine spacing block, described in the alignment pin is plugged in the cylinder lumen pore and causes that the case cover plate is covered on On motor case and the electric machine spacing block carries out lateral Displacement to the reducing motor, the motor case and case lid By fastened by screw between plate, the lateral surface two ends of the case cover plate are respectively symmetrically the grab for being provided with and stretching out, and described Case cover plate is provided with the elastic boss for protruding laterally, and the grab at the case cover plate two ends is hooked leads together in the fixation The elastic boss is flush-mounted in the mounting hole of the fixed guide rail front end outer side of rail simultaneously.

4. a kind of electric sliding rail system for large-capacity refrigerator drawer according to claim 1, it is characterised in that：It is described Rail plate support is lath-shaped, and the slide rail rail brackets includes driving rack connecting portion, refrigerator drawer fastening part and slides Guide rail connecting portion, the side lower vertical of the broadside of the refrigerator drawer fastening part is connected with the rail plate connection Portion, the top of opposite side are connected by connecting portion with the driving rack connecting portion, and the driving tooth bar is installed on the driving The downside surface of rack connecting portion, the rail plate support is installed on the bottom of refrigerator drawer by the refrigerator drawer fastening part Portion side, it is connected with the rail plate by the rail plate connecting portion.

5. a kind of electric sliding rail system for large-capacity refrigerator drawer according to claim 4, it is characterised in that：It is described The front end of rail plate connecting portion is additionally provided with and leads to refrigerator drawer door with refrigerator drawer connecting portion, the refrigerator drawer connecting portion Cross fastened by screw.

6. a kind of electric sliding rail system for large-capacity refrigerator drawer according to claim 5, it is characterised in that：It is described Driving tooth bar includes that L-shaped right angle connects integral tooth-strip part and installation portion, and boss is provided with the top surface of the installation portion, Correspondence is provided with mounting hole on the driving rack connecting portion, and the installation portion is riveted on the driving tooth bar of the rail plate support In the mounting hole of the boss insertion driving rack connecting portion on the bottom surface of connecting portion and the installation portion.

7. a kind of electric sliding rail system for large-capacity refrigerator drawer according to claim 5, it is characterised in that：It is described Square hole is provided with refrigerator drawer fastening part, the bottom side of refrigerator drawer is provided with buckle, and the buckle spiral-lock is in the square hole It is interior.

8. a kind of electric sliding rail system for large-capacity refrigerator drawer according to claim 5, it is characterised in that：It is described Rail plate connecting portion is provided with two lugs, and the lateral surface of the rail plate is provided with two outwardly bridge portions, described Cavity in being formed between the lateral surface of rail plate and the bridge portion, two lugs of the rail plate connecting portion are inserted respectively Screw thread is provided with the middle cavity that two bridge portions of the rail plate are formed with lateral surface, and in one of them described bridge portion Be provided with elliptical aperture on the lug of hole rail plate connecting portion corresponding with bridge portion this described, set screw by the screwed hole, The rail plate and rail plate connecting portion are positioned fastening by elliptical aperture.

9. a kind of electric sliding rail system for large-capacity refrigerator drawer according to claim 2, it is characterised in that：Institute Stating Synchronization Component includes connecting rod and two groups of synchronizing wheel devices, and two groups of synchronizing wheel devices are respectively arranged in the sideslip of refrigerator drawer two On rail assembly, the synchronizing wheel device includes synchromesh gear, synchronous tooth bar, and the synchromesh gear is installed on gear pedestal, institute The Basolateral that gear pedestal is installed in the rail plate is stated, the synchronous tooth bar is installed on the lateral surface of rack support, institute The bottom that rack support is installed on the fixed rail brackets is stated, the synchromesh gear engagement is installed on the synchronous tooth bar, Pass through the connecting rod synchronized links between the synchronizing wheel of two groups of synchronizing wheel devices.

10. a kind of electric sliding rail system for large-capacity refrigerator drawer according to claim 9, it is characterised in that：Institute State gear pedestal and be provided with chuck, the one side of the synchromesh gear is provided with annular groove, and the circular trough bottom surface is evenly distributed and sets Barb is equipped with, the barb hooks the chuck for sharing the gear pedestal.

A kind of 11. electric sliding rail systems for large-capacity refrigerator drawer according to claim 10, it is characterised in that：Institute State fixed rail brackets to take the shape of the letter U, a lateral surface of the fixed rail brackets is installed on the wall of inner container of icebox side, another lateral surface It is connected with the fixed guide rail.

A kind of 12. electric sliding rail systems for large-capacity refrigerator drawer according to claim 2, it is characterised in that：Institute State controller including control unit and electricly connected with described control unit drive signal amplifying circuit, H-bridge drive circuit, Speed feedback circuit, touch start-up circuit；

Described control unit is used to control the reducing motor to act；

The drive signal amplifying circuit, carry out speed governing to the reducing motor by what described control unit sent for amplifying Pwm control signal；

The H-bridge drive circuit is connected with the drive signal amplifying circuit, the steering for controlling the reducing motor；

The speed feedback circuit is connected with the H-bridge drive circuit, for by the speed feedback of presently described reducing motor To described control unit；

The touch start-up circuit is described for human body to be passed to the touch signal produced comprising the touch pad for touching chip Control unit is acted controlling the reducing motor.

A kind of 13. electric sliding rail systems for large-capacity refrigerator drawer according to claim 12, it is characterised in that：Also Including the push-and-pull start-up circuit electricly connected with described control unit, the push-and-pull start-up circuit includes the rectification circuit being connected And comparison circuit, the rectification circuit is connected with the reducing motor, and the comparison circuit is connected with described control unit, The positive and negative voltage conversion that the rectification circuit is used to making rail plate described in push-and-pull the reducing motor to produce is into comparing letter Number, the comparison circuit is used to being compared and producing push pull signal to pass to the control comparison signal and preset value Unit is acted controlling the reducing motor.

A kind of 14. electric sliding rail systems for large-capacity refrigerator drawer according to claim 13, it is characterised in that：Also Including the trip control circuit electricly connected with described control unit, the trip control circuit includes control travel switch of closing the door The LSW1 and control travel switch LSW2 that opens the door, the bottom of the fixed guide rail is provided with close the door control travel switch LSW1, institute The anterior end for stating rail plate is provided with enabling control travel switch LSW2, open the door control travel switch LSW2 and control of closing the door Travel switch LSW1 connects described control unit by connector respectively, and the enabling travel switch interface LSW2 transmission is opened the door and believed Cease and come to brake the reducing motor to described control unit, the travel switch LSW1 transmission of closing the door closes the door information to the control Unit processed brakes the reducing motor.

A kind of 15. electric sliding rail systems for large-capacity refrigerator drawer according to claim 13, it is characterised in that：Also Including Hall braking circuit, the Hall braking circuit includes the Hall element that the reducing motor is connected by connector Hall, the Hall element hall is electricly connected with described control unit, and the Hall element hall makes the reducing motor every Rotate a circle to produce a pulse signal and the pulse signal is passed into described control unit, described control unit is to receiving To the pulse signal counted, when the pulse signal quantity that described control unit is received, to reach the rail plate complete Described in described control unit is controlled during the pulse number that the required reducing motor of full opening or completely closure is rotated and produced Reducing motor stopping is acted.

16. according to any described a kind of electric sliding rail system for large-capacity refrigerator drawer in claim 13~15, its It is characterised by：Optoelectronic switch is additionally provided with the door wall of refrigerator drawer, the optoelectronic switch passes through photoswitch circuit and institute State control unit to be connected, the photoswitch circuit is by the optoelectronic switch detecting distance information and by the range information Pass to the braking that described control unit controls the reducing motor.