CN1048153A - The commercialization design of full-automatic domestic soya-bean milk making machine - Google Patents

Abstract

A kind of bean food of pulverizing filters out the kitchen appliance that slurries also can boil automatically, it is the improvement of continuous full-automatic domestic soya-bean milk making machine product, there is the liquid level control circuit of a safety to guarantee personal safety, the soy bean milk making machine bottleneck is reserved the adequate ventilation space and is guaranteed anti-spilled functional reliability, agent structure adopts inner bag and base directly to dock the simple designs of clamping shell, and with J RunddichtringO sealed electrical arbor, timer intermittent controlled motor and employing planar shaped electric heater, increase case ring and shorten the bottle stopper height, it is design that the liquid level pilot passes body interlayer and many part apertures etc.

Description

The commercialization design of full-automatic domestic soya-bean milk making machine

The present invention relates to the kitchen utensils that family uses, a kind of have a domestic appliance of smashing or filter food function to pieces, is used to squeeze beans, for example slurries such as soya bean or coffee bean and the device that can boil automatically, particularly " full-automatic domestic soya-bean milk making machine ".

In the patent No. is to disclose this product in 86204692 specifications, though this utility model has been given whole technical schemes of understanding " full-automatic domestic soya-bean milk making machine ", but commercially produce entering, especially to consider that this product gives nursery and uncared for invalid some catastrophe risk that waits the life area existence of old children, also should further improve its security performance, take the production of civilian goods electrical equipment into consideration and should utilize the simplest common process with processing, to make every effort to reduce product cost, make it have higher commercial profit and certain presentation quality, still can be improved former technology, these technology that have much room for improvement are:

The structural design that a, former utility model provide soy bean milk making machine is that base and top cover are all produced screw thread, link with placing the fillet of screw on the outer casing inner wall face, because above-mentioned part all is a working of plastics, tolerance is bigger, it is very hard to turn screw thread in installing in batches one by one, speed is too low, and therefore this structural design can not adapt to large-scale streamline production.Moreover produce the major diameter screw thread on working of plastics, mould is complicated, and demould time is long, and production cost is higher.In addition, the tube connector of bottle stopper lower end is oversize, is unfavorable for that also production cost reduces.Also have, top cover only depends on tight fit to be connected with inner bag, has to make soya-bean milk see through the danger that base damage electric elements are infiltrated in the cooperation slit.Make a general survey of the composition material of soy bean milk making machine, main member just because of it all is to adopt engineering plastics to make, so in business-like production, just be necessary to explore soy bean milk making machine and adopt the structural design of assorted petty sample just reasonable actually? assemble the simplest and the most direct? is mould the simplest? the plastic minimum number? is cost minimum?

B, the design of former utility model are: filling heat insulator between shell and the inner bag, it is succinct that this has influenced complete machine, unfavorable to assembling and keeping in repair.Do not have the water level cuing scale above the shell, be difficult to grasp correct water injection rate, make troubles to the consumer.

C, the design of former utility model are: for the ease of daily cleaning probe, probe is installed on the bottle stopper, but this structure be unable to do without connector the electronic control circuit of liquid level relay low-voltage power circuit with bottle stopper inside is connected.Really, can implement successfully this angle from soy bean milk making machine, adopt that a kind of connector not influence control performance, but consider from convenient, practical, safe equal angles, should design a kind of dedicated connector, the filter screen that will install soya bean at hand-held bottle stopper returns the while in the soy bean milk making machine, finishes the action that patches of circuit connection automatically.

D, former utility model are addressed: the low-tension supply after the conversion of liquid level relay power circuit can be by soy bean milk making machine body interlayer, or handle ...In small lot batch manufacture, cabling bothers the problem of some also little, but in the streamline of several ten million of hundreds ofs was produced, the problem of cabling trouble just seemed very serious.Just should be special in wires design goes out a rational position of most convenient on soy bean milk making machine, guarantee that threading is very convenient and time-saving laborsaving, and guarantee not because because the improper fault that causes soy bean milk making machine electrical equipment circuit of wiring operations.

E, since a kind of dedicated connector that should design that c point proposes imagine, the battery lead plate that exposed stainless steel thin slice makes certainly will to be arranged on the top of soy bean milk making machine and bottle stopper so and rely on elastic force to be close to stainless steel reed on the battery lead plate, so bring new technical barrier thus, promptly also will design a kind of specific liquid level control circuit, this circuit should be able to satisfy following 4 conditions;

1., in order to make the consumer easy to use, the filter screen that to fill soya bean at hand-held bottle stopper returns the time marquis in the soy bean milk making machine, the angle of revolution of bottle stopper and soy bean milk making machine should be random, directionality can not be arranged, in other words, can not stipulate that a certain plate electrode plate can only contact on a certain reed, otherwise soy bean milk making machine just can not be worked, this just requires up and down the connection lead between the wiring board can not be more than two, and these two leads can exchange connection, and the connection of other regulations such as positive-negative polarity can not be arranged.And a top wiring board also must lean on this two lead supply powers.

2., according to the electrocution-proof protection regulation of GB4706.1-84. " safety general of family expenses and similar applications electrical equipment requires " to the II electric appliances, exposed with voltage must being not more than～24V of battery lead plate, and the isolation of process safety isolating transformer.

3., exposed battery lead plate should not have the equally sensitive liquid level control function of probe, can not adhere to because of remnants such as soya-bean milk foam and bean dregs to cause on the battery lead plate that liquid level controls misoperation.

4., perfectly safe in order to guarantee soy bean milk making machine anti-overflow function, this liquid level control circuit should contact with battery lead plate at reed, just electric heater generates heat; Otherwise turn-off.In case its reason is because when reed and battery lead plate loose contact (for example owing to foreign material such as bean dregs attach), probe does not have the liquid level control action, if at this moment electric heater is adding hot soya-bean milk in the same old way, will inevitably cause the whole excessive accidents in soya-bean milk boiling back, otherwise, though the control of the liquid level of probe is ineffective, because electric heater also is in off state, this has just improved the security performance of soy bean milk making machine greatly.Can also being convenient to the consumer be from judging with the light and shade of electric heater indicator lamp in parallel whether battery lead plate contacts with reed well? and in time erase till the dirt levelling contact extremely well.

F, because " full-automatic domestic soya-bean milk making machine " only limits to the hand-held electric appliance that use in the kitchen, volume is less, so the sealing of motor shaft, can not copy the sealing of industrial machinery or washing machine motor shaft, and must design a kind of simple and compact for structure, cheap, the sealing device of dependable performance.

The design of g, former utility model is: be 2 minutes one group of contact time-delay turn-off time of timer control motor, but the violent friction of carbon brush and commutator during owing to the series excited machine running, allow stream time shorter, therefore have to select for use the bigger motor of power, make the soy bean milk making machine cost up, weight strengthens.

H, the design of former utility model are to adopt electrothermal tube to make electric heater, though having heat, it is used to little advantage, but because the electrothermal tube caliber is less, so surface thermal load is very big, soya-bean milk is tied the carbon after-hardening easily on its red-hot surface, and envelope is around electrothermal tube, moreover, coke button after the knot eggplant comes off is sneaked in the soya-bean milk, influences the soya-bean milk chromaticness.The electrothermal tube of projection in the soy bean milk making machine bottom also influences the succinct of soy bean milk making machine structure, and it is unfavorable that cleaning is brought, and in addition, a large amount of foams that produce in the soya-bean milk manufacturing process are poured out soon in company with soya-bean milk one, have reduced the drinking quality of soya-bean milk.

The object of the invention is will all solve above-mentioned a series of existing problems, and security performance and the maximum commercial profit of acquisition for improving soy bean milk making machine propose new technical scheme to former utility model product improvement, impel Patent technology goodsization.

The improved design of the present invention is seen Fig. 1, Fig. 2 is the left view of Fig. 1, blade among the figure (10), stainless steel interface (11), first clutch (23), lower semi-clutch (24), filter screen (25), its principle of main shaft (26) and function are the same with former utility model, repeat no more.Improved soy bean milk making machine has changed the design that top cover, base and the fillet of screw spin, but inner bag is directly docked with base.Its concrete structure is: the outer bottom at inner bag (9) designs several legs of the tripod, one of studs (14) just is screwed in the legs of the tripod, see Fig. 3, several holes on base (16) plane, intermediate layer are passed in the other end, after nut (15) is tightened inner bag (9) and base (16) admittedly, the export-oriented flange (42) of inner bag (9) just firmly clamps shell (12) jointly with base (16), makes soy bean milk making machine form a firm integral body.This structure is at the fit on most convenient, the plastic minimum number, and mould and injection moulding also the simplest cost are minimum.In addition, the improved soy bean milk making machine of the present invention has also shortened the length of bottle stopper bottom tube connector in the former utility model, and second half length is arranged on the filter cover (8), produce Hexagonal jacket and hexagonal headpin on the end points of two sections half length tube connectors respectively, fastening behind the fit mutually with screw (40).The improved soy bean milk making machine of the present invention increases a part in addition that is referred to as case ring (7), referring to Fig. 4, its outer surface chromium plating, the one, attractive in appearance in order to increase, the 2nd, if consider and allow inner bag directly cooperate with shell, just must accurately control the precision of inner bag (9) diameter dimension, but the volume of inner bag is bigger, and it still adopts water white high temperature resistant polycarbonate to make, difficulty is very big on the technology, and case ring (7) is made of the ABS material, and the mould volume is also much smaller than inner bag, so the size of equal accuracy goes up just than being easier to realization at case ring (7).

The improved soy bean milk making machine of the present invention has been cancelled in the former utility model heat-insulating material of filling between the shell and inner bag, so can go up direct perforate and cover a slice transparent plastic sheet (27) at tinplate shell (12) and make observation window, and mix one the band scale gauge (29), because inner bag (9) is water white, so the water yield in the inner bag can directly indicate on the scale of gauge (29).

The dedicated connector structure is as follows; Referring to Fig. 5, Fig. 6, it by reed (2), battery lead plate (32) totally two in addition parts form.Battery lead plate and reed all are to select for use very thin stainless steel substrates to make, but different be that the stainless steel substrates that reed (2) is selected for use has enough elasticity.The soy bean milk making machine bottleneck is made of two working of plastics, they are the electrode panel seat of Fig. 7 and the top cover of Fig. 8, two symmetries are arranged on electrode panel seat (31), be not connected and very shallow groove (43) mutually, battery lead plate (32) curved to pave behind the arc sheet stick on after groove (43) goes up, fastening with machine screw with oval countersunk fillister head (36), on every screw (36) a slice weld tabs is housed, with a lead (28) all contact welding jail of weld tabs, after another plate electrode plate is also drawn a lead with reference to this method, again these two leads of connecting with battery lead plate (32) are passed two apertures (45) on the electrode panel seat (31).Because all weld tabs all is sealed in the embedding groove (44) by embedding (37) cast, causes between two plate electrode plates behind the dirt such as bean dregs and leak electricity so can prevent effectively that weld tabs is glued.Electrode panel seat (31) closes up with top cover (5), and fastening with tapping screw (6), electrode panel seat (31) is installed on the inner bag (9) again, and the aperture that passes the inner bag flange with tapping screw (41) is fastening.

On electrode panel seat (31), also produced some grizzly bar shape slotted holes (50), block with it and float over the foam thing that the soya-bean milk surface is bulk and do not flow out with soya-bean milk, improved the quality of soya-bean milk.

Pass two leads (28) of (45) aperture, pass two apertures (48) on (7) on the case ring again, after continuing across two apertures (49) on the inner bag flange, from tinplate and inner bag interlayer, extend downwards always, pass two threading apertures on the base again, be connected on the transformer B secondary coil of electrode panel seat inner control circuit plate (17).The improved soy bean milk making machine of the present invention is got rid of cabling scheme from handle, be because lead (28) passes tinplate shell (12) when entering handle, tin is cut lead (28) and is caused soy bean milk making machine electrical equipment line fault, besides threading is also convenient and strength-saving not as good as cabling from the body interlayer from handle.This two leads that the present invention improves soy bean milk making machine climbing along the inner bag outside from bottom to top from the soy bean milk making machine bottom, and rise to the interior design of soy bean milk making machine most significant end top cover after running through a plurality of parts in addition always, being the design of product of the present invention original creation, also is that of product of the present invention is important and significant, requisite and be different from the technical characterictic of any household kitchen electric appliance.

The structure of bottle stopper (1) as shown in Figure 9, rapier circuit board (34) is twisted solid on two inner garden posts of bottle stopper (1), big sealing ring (33) liner uses tapping screw (35) that bottle stopper (3) is tightened sealing behind bottle stopper mouth edge again.Two planes (46) are arranged on the bottom surface of bottle stopper (1), reed (2) just is fastened on this plane (46) by stainless steel screw (38), the stainless steel screw of fastening reed also is equipped with a slice weld tabs on (38), is used for reed (2) is connected lead with rapier circuit board (34).Rapier (30) passes back, hole (47) and fixes with nut, on each root rapier a slice weld tabs is housed also, also is used for rapier (30) is connected lead with rapier circuit board (34).

Need benly be, the probe of rapier in the product of the present invention (30) and former utility model is identical on principle and function, but in specification of the present invention, why to rename as rapier, be to consider that rapier only has been the effect of perception soya-bean milk resistance, and it is irrelevant with the geometry of itself, not necessarily leave no choice but be made into bar-shaped can not, in concrete enforcement, can change flexibly as required, for example can on the inner bag sidewall, set up standard part for example the stainless steel trip bolt make rapier, Figure 10 and for example, battery lead plate on the cancellation electrode panel seat, but below the electrode panel seat, design two ear seats, directly with the stainless steel thin slice (this thin slice can design with the striking resemblances of reed shape, be convenient to utilize the blanking die of reed, certainly the hemisphere face of reed need not punching press and comes out) pave on two ear seats that stick on the electrode panel seat and make rapier after fastening with screw, or the like, more above-mentioned embodiment, a kind of equivalence that all belongs to rapier substitutes, and is that ordinary skill in the field of the present invention need not to pay performing creative labour and just can accomplish.Though the shape of rapier can be ever-changing, but be not easy between rapier from the soya-bean milk foam, and the formation wire drawing adheres between rapier and the inner bag, causes rapier to constitute the resistance consideration by the foam that sticks between inner bag wall or the rapier, and then rapier should be the most reasonable to hang setting.But need ben is that sheet type rapier shown in Figure 10 also is to have very big commercial value, because the lamella shape rapier that sticks on the electrode panel seat cleans also very convenient, more valuable is that it has omitted battery lead plate and reed, reduced cost, and it can also simplify the liquid level control circuit, so still have very big practicality.

The liquid level control circuit that satisfies 4 specified conditions of e point is referring to Figure 11, its control circuit board (17) is gone up total transformer B, bidirectional triode thyristor KP2,13 elements of resistance R, the gate trigger voltage of KP2 is to lean on primary current pressure drop on R1 of transformer B to obtain, transformer B secondary coil is connected by the inner rapier circuit board (34) of lead (28) and bottle stopper (1), elder generation's analysis controling circuit plate (17), industrial-frequency alternating current flow through timer K2 contact and planar shaped electric heater (13), transformer B primary coil and resistance R 1 constitute the loop, when transformer B is unloaded, primary coil only flows through very little exciting current, the last pressure drop of R1 is very little, be not enough to trigger bidirectional triode thyristor KP2 conducting, the old friend flows voltage and almost all drops on the primary coil of transformer B, and electric heater (13) does not generate heat; When the secondary coil short circuit of transformer B, primary current increases severely, and the voltage on the R1 is enough to trigger the bidirectional triode thyristor conducting, and the old friend flows voltage and almost all drops on the electric heater (13), the luminous demonstration electric heater of indicator lamp (39) (13) work.

The effect of rapier circuit board (34) is to open circuit or the secondary coil of the transformer B that opens a way, because the secondary coil low-voltage alternating current power supply is through lead (28), battery lead plate (32), reed (2) enters the rapier circuit board (34) in the bottle stopper (1), on the anode and negative electrode through being added in one-way SCR KP1 behind the bridge rectifier, one-way SCR is through resistance R 2 triggering and conducting, make transformer B secondary coil short circuit, electric heater (13) heating, after the foam of soya-bean milk boiling come-up touches a pair of rapier (30), triode BG1 base stage flows through saturation conduction behind the electric current, make one-way SCR KP1 gate pole and negative electrode almost idiostatic, controllable silicon KP1 turn-offs, transformer B secondary current is at the end of one's rope, is equal to zero load.The outstanding advantage of this liquid level control circuit is that circuit is simple, be the simplest in the present known liquid level control circuit, minimum a kind of of number of elements, and it adopts contactless controllable silicon to make the switch of electric heater (13), and it is very suitable being used in the very frequent soy bean milk making machine liquid-level type anti-overflow control aspect of switch.Get in touch owing to have only on the magnetic circuit between rapier circuit and the electric heater circuit, no matter thereby power frequency ac voltage under which kind of situation, all can not communicate with the battery lead plate or the reed that expose, so security performance is quite high.It is one of guardian technique of " full-automatic domestic soya-bean milk making machine " acquisition commercial value.

Another embodiment of specific level control circuit that satisfies 4 conditions of F point sees Figure 12, its operation principle is different fully with Figure 11, it adopts relay to make the switch of electric heater, two elements of transformer B and relay J are arranged on its control circuit board (17), when transformer B secondary coil was opened a way, the secondary coil no current passed through, not adhesive of relay J, normally opened contact J1 is not closed, and electric heater does not generate heat; When transformer B secondary coil was connected, because the R3 resistance is very little, transformer B secondary current flow through relay J, contact J1 closure, electric heater work.It is to be subjected to the saturation conduction of BG2 and to end control that transformer B secondary coil is connected with open circuit, after the foam of soya-bean milk boiling come-up touches a pair of rapier (30), and the BG3 saturation conduction, collector potential decline, BG2 ends, on the contrary the BG2 conducting.This circuit also has certain practical value, but its cost will be higher than Figure 11 circuit, and series excited machine (18) commutator spills the smog dust pollution of cremate, has shortened the relay contact life-span, economical and technical benefit is not as good as the circuit of Figure 11, but advantage is can not produce radio interference.

After adopting Figure 10 sheet type rapier because soy bean milk making machine has been cancelled battery lead plate (32) and reed (2), so the liquid level control circuit with regard to no longer need to satisfy e 1., e 3., 4. three specified conditions of e, so the design of circuit can be simplified and become flexibly.Rapier wiring board (34) and control circuit board (17) can unite two into one, Figure 13 for example, relay J 2 contacts are in normally off, electric heater (13) just is in febrile state in the start beginning, have only after the foam of soya-bean milk boiling come-up touches a pair of rapier (30) the bidirectional triode thyristor KP3 conducting that is triggered, relay J adhesive, normally-closed contact J2 opens, electric heater (13) outage.

Figure 14 adopts triode to replace the electrical schematic behind the bidirectional triode thyristor among Figure 13, electric heater (13) also just is in febrile state in the start beginning, transformer B secondary current is powered to BG4 after bridge rectifier and filtering, relay J is the load of BG4, after the foam of soya-bean milk boiling come-up touched a pair of rapier (30), the BG4 base stage flow through saturation conduction behind the electric current, relay J adhesive, normally-closed contact J3 opens, electric heater (13) outage.

In fact, the design of soy bean milk making machine liquid level control circuit is can be extremely flexibly, be limited to this explanation book, just can not exemplify one by one, as long as strict grasp soy bean milk making machine line design security performance requirement, do not allow industrial-frequency alternating current and the battery lead plate that exposes that getting in touch on the circuit arranged, exposed rapier or battery lead plate pass through magnetic circuit, also can be by methods such as for example photosensitive controllable silicon of light isolated controlling element or phototriode control electric heater switch, because the design of various liquid level control circuits, extensively applied to each technical field already, those of ordinary skill need not to pay that performing creative labour just can accomplish, so just repeat no more here.

The present invention improves the motor shaft sealing of soy bean milk making machine and adopts exoskeletal J RunddichtringO (19), consider that G series series excited machine end face all has screwed hole, so J RunddichtringO (19) shirt rim enlarged diameter, form the valve rubber of garden, plane shape, shown in Figure 15, the plane valve rubber of this garden shape seals after by bowl-shape stainless steel interface (11) baseplane and motor pad (20) flat grip, and motor axial seal is then guaranteed by J RunddichtringO lip.

New technical scheme is done following improvement to former soy bean milk making machine timer (22): about one group of contact conducting 30S of control motor (18), disconnect about 30S then, break-make so repeatedly, just disconnect no longer conducting through 4 fens clock times, motor accumulative total ON time still can remain on about 2 minutes like this, but motor becomes continuously-running duty is chopping mode, and the heat radiation time of commutator has increased, so can suitably select lower-powered motor for use.

Improved electric calorifie installation adopts planar shaped electric heater (13), it adopts laminar heat generating core to make heater element, the heat generating core structure is similar to mica heating core form in the electric iron, constitute by three stratus master slices, uniform winding resistance wire on the mica sheet of intermediate layer, two mica splitting layers insulate up and down, and heat generating core is clamped parcel back sheet metal by two sheet metals and is sealed by roll welding, after two installation feet pass inner bag (9) bottom hole, fastening by special jam nut (21).Because the area of dissipation of planar shaped electric heater is bigger, surface thermal load is relatively low, the degree of adhesion of soya-bean milk makes moderate progress than electrothermal tube, owing on plane electric heater (13) surface, be coated with the bonding that one deck polytetrafluoroethylene (PTFE) prevents soya-bean milk, improve so soya-bean milk coking carbonization phenomenon on electric heater has largely than electrothermal tube.

The present invention improves soy bean milk making machine and prevents that soya-bean milk from overflowing another key technology is to reserve the ventilation voids (4) in enough cross sections between top cover (5) in soy bean milk making machine and the bottle stopper (1), prevent that with the way of quickening evaporation destruction soya-bean milk foam soya-bean milk from overflowing, cooperate the reliable sensitive a series of superior functions of liquid level control switch, though, in fact what does not bring unfavorable to the anti-overflow unfailing performance so the thermal inertia of flat electric heater (13) is little not as good as electrothermal tube.

Claims (10)

1, a kind of bean food of smashing to pieces leaches the daily-use electrical appliance that its slurries also can boil automatically, relate to the kitchen appliance that family uses, be specially adapted to full-automatic domestic soya-bean milk making machine, set Disintegrating knife in the guard that is immersed in the water is arranged, drive the motor of Disintegrating knife, the liquid-level switch that a pair of rapier and rapier circuit constitute, cooperate an electric heater to form heating and anti-overflow device, and there is a timer to make shutdown element automatically, it is characterized in that the couple of conductor (28) of drawing from soy bean milk making machine base internal circuit board, after passing through a plurality of parts in the machine, upwards climb in outside along the inner bag (9) of irritating blowing liquid, the level height in this lead (28) solstics must be the liquid level plane that exceeds in the inner bag (9).

2,, it is characterized in that the rapier circuit relies on the magnetic circuit of transformer B or relay J that electric heater (13) break-make is controlled by the said full-automatic domestic soya-bean milk making machine of claim 1.

3, by the said full-automatic domestic soya-bean milk making machine of claim 2, it is characterized in that leaving the ventilation voids (4) of enough areas, the evaporation that can quicken slurries destroys its foam.

4,, after being strengthened, the shirt rim diameter that it is characterized in that J RunddichtringO (19) formed planar sealing pad, by two layer planes (11) and (20) clamping up and down by the said full-automatic domestic soya-bean milk making machine of claim 2.

5,, it is characterized in that one group of contact is to pulverize soya bean with the working method control motor of interrupted conducting in the timer by the said full-automatic domestic soya-bean milk making machine of claim 2.

6, by claim 3 and 4 and 5 said full-automatic domestic soya-bean milk making machines, the electric heater (13) that it is characterized in that adding hot soya-bean milk is to adopt the planar shaped electric heater.

7, by the said full-automatic domestic soya-bean milk making machine of claim 6, the agent structure that it is characterized in that soy bean milk making machine is to allow inner bag (9) rely on threaded connector (14), directly dock with base (16), simultaneously shell (12) is clamped, make soy bean milk making machine form a firm integral body.

8, by the said full-automatic domestic soya-bean milk making machine of claim 7, it is characterized in that laminar battery lead plate (32) encloses on the electrode panel seat (31) that is layered on the soy bean milk making machine bottle mouth position, whippy reed (2) then is installed on the plane (46) of bottle stopper (1).

9,, it is characterized in that inner bag (9) by the case ring (7) of hoop outside courage, accurately cooperates with shell (12) by the said full-automatic domestic soya-bean milk making machine of claim 8.

10, by the said full-automatic domestic soya-bean milk making machine of claim 9, the inner bag (9) that it is characterized in that irritating blowing liquid is transparent, and shell (12) has hole and is covered with observation window (27), and shell (12) surface is furnished with the gauge (29) of band scale.

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