CN100592011C - Refrigerator - Google Patents

Abstract

The invention provides an electric refrigerator capable of opening door with a small force or improving the storage capacity. In the electric refrigerator having a door drive device that opens the door of the electric refrigerator, the door drive device comprises: a rotating component that is provided with a rotation drive unit in the main body of the electric refrigerator, and a plurality of power transmission parts that rotates along with the rotation of the rotation drive unit and is more distant from the rotating centre with the advancement inverse to the rotating direction; a control unitthat controls the rotation drive unit, and a connection component that is mounted in the door side. The power transmission part transmits power and converts the rotation motion of the rotating component into a linear motion. The power transmission part has a plane part. The plane direction of the plane part is formed into an approximate rotating central direction. The connection component comprises a plurality of stepped sidestep part. The sidestep part has an approximate surface contact with the plane part so as to open the door.

Description

Refrigerator

Technical field

The present invention relates to a kind of refrigerator.

Background technology

All the time, possess between the short distance active region of close tooth ratio as the device that door of refrigerator is opened wide and the length of thin tooth ratio apart between active region, when drawing back seal, produce bigger power, afterwards to open wide at a high speed.And disclose the formation (for example with reference to patent documentation 1) that is provided with the antioverloading clutch in thin tooth portion.

In addition, also disclose following formation, promptly, make the pressing component rectilinear motion by worm gear and tooth bar, automatically open wide drawer door by going out by this pressing component, door is opened end, by back-moving spring this pressing component is reset to again and pushes position (for example with reference to patent documentation 2).

Patent documentation 1: the spy opens flat 02-157581 communique

Patent document 2: the spy opens the 2001-280827 communique

In recent years, dietetic life is taking place to change, and the concentrated families that buy the amount of food about a week such as large supermarket that the dietetic life that the food material of buying every day from frequent nigh food supply retail shop is cooked is converted in the countryside increase gradually.And corresponding to the situations such as increase that frozen food utilizes, the refrigerator of the capacity of refrigerating chamber above 400 liters now become mean size.

Thereby, being accompanied by the maximization of refrigerator, stored amount of food increases, and the weight of particularly depositing in refrigerating chamber, vegetable compartment becomes big.For example owing to will take care of the above food of 20kg, therefore there is the big problem of power change of door needs that are used to open vegetable compartment, refrigerating chamber.

Particularly, when beginning to open, except that the load resistance of drawer guideway, also be applied with the power that is adsorbed in the magnetic seal spare on the refrigerator main body of drawing back, thereby become big for opening the required power of door.Therefore for less people of strength such as older person or children, difficult when opening refrigerator.

In addition, close when closing door of refrigerator when insufficient, when becoming so-called half-open door state, cold air spills to the refrigerator outside, and refrigerator function suffers damage.At this moment it is big that power consumption becomes, and the food of Bao Cuning degenerates simultaneously.And then the outer heating installation of refrigerator enters in the refrigerator, appears at the problem of condensing water droplet in the refrigerator.

For door of refrigerator, be provided with the seal of magnetic adsorption type in the entire circumference of door, under the door closing state, the magnetic force by magnetic is with around the attached peristome that remains in main body of door-inhale.In addition, general constitutes, possess when door is closed, and near the arrival full-shut position, when for example being closed to the opening residue 50mm left and right sides, the close mechanism of the power of the gravity of utilization door self or spring etc.

Therefore, when opening door of refrigerator, need to surpass making a concerted effort of following each power: the absorption affinity that magnetic seal spare is produced when opening beginning; The drag force of close mechanism; And be used to pull out the required power of food weight in the storing containers be located on the door.That is, owing to need apply on the door to pull out drawer from halted state whole open the speed of door, the speed sealing about for example per second 200mm pulls required power, therefore particularly at food more for a long time, the power that pulls the door open is the first maximum power.After about with Men Lakai 10mm, the absorption of magnetic seal and main body is drawn back, and therefore the power that pulls the door open is i.e. second power of making a concerted effort of the acceleration opened of the pulling force that spring produced that has of close mechanism and quickening.If the scope that drag force applied to closing direction that close mechanism produced is the scope from the door closure state to for example 50mm, then in this scope, second power is necessary.And then, because at the continuation opening action and after door is opened more than the 50mm, close mechanism is inoperative, therefore the power that applies on drawer is only for acceleration be further used for the friction that the sliding drawer doorframe produces, therefore with less power promptly the 3rd power to carry out the opening action of drawer just enough.At this, if drawer arrives opening speed when opening the 50mm left and right sides, then only the power with the opposing frictional force that doorframe was produced is just enough for the 3rd power, and only needing in a word just is enough to carry out opening action to be in a ratio of the 3rd less power than first power, second power.

When opening the drawer of refrigerator, have following characteristic, that is, as mentioned above, open and begin to need king-sized power, after opening to a certain degree for example about 50mm, only need less power.The invention provides the refrigerating chamber drawer door drive unit that a kind of power required when pulling out the drawer door of above-mentioned refrigerator is fit to.

On the one hand, the door speed during about opening action, owing to begin action from halted state when drawing back magnetic seal spare, therefore in this scope was the scope of first power, speed can be minimum.On the other hand, when the scope of second, third power continues to open drawer door,, then approach the user with the action that pulls when dragging drawer door, so become the action of nature if the speed of door quickens and high speed ground action successively, from but suitable.The present invention and then the refrigerating chamber drawer door drive unit that provides a kind of velocity characteristic required when pulling out the drawer door of above-mentioned refrigerator to be fit to.

In addition, existing door drive is because of the formation of its door drive self, and as described later, storage volume, the container depth of depositing the container of foodstuff storing diminish.

At this, in patent documentation 1, the door that needs short stroke by going out the unit, thereby constitutes complicated by the door that goes out unit and long stroke.In addition, the side surface part of the inherent vegetable box B of refrigerator case is provided with above-mentioned door by going out the unit, therefore, the depositing of above-mentioned vegetable box B reduced with this by go out the unit volume size accordingly.

In patent documentation 2, the formation of using worm gear and tooth bar is disclosed, but owing to be that the speed of opening drawer door is that the responsiveness of tooth bar is certain formation, therefore speed reducing ratio need be made as big and certain (promptly underspeeding), make it possible to export for by going out the required power of magnetic seal spare.Responsiveness reduces like this, and does not possess the function of closing the door.In addition, owing to be provided with the module case of depositing electric motor assembly at container bottom, so the container depth of tank has correspondingly shoaled therewith.

Summary of the invention

The invention provides a kind of refrigerator that can open the door wide with less power, perhaps its order provides a kind of refrigerator that can increase storage volume.

Scheme one described refrigerator of the present invention, the door drive that possesses unlimited door of refrigerator, it is characterized in that, above-mentioned door drive has: rotatable parts are provided with the rotating drive unit that possesses and rotate and be positioned at along with the distance apart from center of rotation becomes locational a plurality of power transfering parts far away to advancing with rotation direction reversed by the rotation of above-mentioned rotating drive unit on the refrigerator main body; Control module is controlled above-mentioned rotating drive unit; And attaching parts, be located at above-mentioned reveal, be transformed into rectilinear motion from above-mentioned power transfering part transferring power and with the rotational motion of above-mentioned rotatable parts, above-mentioned power transfering part has planar portions, and the in-plane of above-mentioned planar portions is roughly center of rotation direction ground formation, above-mentioned attaching parts have a plurality of step-like stage portion, and this stage portion and above-mentioned planar portions transferring power when roughly face contacts are opened wide above-mentioned door thus.

Constitute by this, can be efficiently the driving force of attaching parts be passed to attaching parts, can open wide the door of refrigerator with less power.

Scheme two described refrigerators of the present invention, it is characterized in that in scheme one described refrigerator, above-mentioned door is a drawer type door, this drawer door has door, be located at this about doorframe and stride across about this doorframe and the parts that form have above-mentioned attaching parts on these parts.

Constitute by this,, therefore can make the motoricity of rotatable parts pass to drawer door effectively efficiently owing on the parts that stride across door frame formation, be provided with attaching parts.

Scheme three described refrigerators of the present invention is characterized in that, in scheme two described refrigerators, this doorframe about above-mentioned striding across and the parts that form are seen from above-mentioned door front and formed the U font.

Constitute by this,, therefore can effectively utilize the drawer container owing to be U font ground arrangement components in the side of drawer window.

Scheme four described refrigerators of the present invention, it is characterized in that, in scheme one described refrigerator, above-mentioned door is a drawer type door, this drawer door have the door and be located at this about doorframe, upload at this doorframe and to be equipped with the drawer container, with above-mentioned drawer container one or form above-mentioned attaching parts discretely.

By this formation, even attaching parts and drawer container are one or monomer, also the rotatory force of rotatable parts can be passed to attaching parts, can easily pull out the drawer container.

The refrigerator of the present invention of scheme five, possesses the drawer door that direction is forwards, backwards pulled out, it is characterized in that, have: rotatable parts are provided with on above-mentioned refrigerator main body fixing rotating drive unit and rotate and be positioned at the locational a plurality of power transfering parts that change gradually apart from the distance of center of rotation towards rotation direction by the rotation of above-mentioned rotating drive unit; Control module is controlled above-mentioned rotating drive unit; And attaching parts, be transformed into rectilinear motion from above-mentioned power transfering part transferring power and with the rotational motion of above-mentioned rotatable parts, above-mentioned drawer type door has door, be located at this about doorframe and stride across about this doorframe and the parts that form, on these parts, be provided with above-mentioned attaching parts, make from the part of above-mentioned power transfering part transferring power to be positioned at than the periphery of above-mentioned parts more in the outer part.

Constitute by this, the part of transmitting the power of attaching parts is positioned at than the periphery of parts more in the outer part, thereby compares the periphery situation more in the inner part that is positioned at than parts, can make the more close refrigerator inwall of parts side.Like this, can correspondingly increase the volume of drawer container therewith.

Scheme six described refrigerators of the present invention is characterized in that, in scheme five described refrigerators, this doorframe about above-mentioned striding across and the parts that form are seen from above-mentioned door front and formed the U font.

By this formation, can make U font bottom more near refrigerator inwall side, can correspondingly increase the volume of drawer container therewith.

Scheme seven described refrigerators of the present invention, it is characterized in that, in scheme five described refrigerators, this drawer door have the door and be located at this about doorframe, upload at this doorframe and to be equipped with the drawer container, with above-mentioned drawer container one or form above-mentioned attaching parts discretely.

By this formation, even attaching parts and drawer container are one or monomer, also the rotatory force of rotatable parts can be passed to attaching parts, can easily pull out the drawer container.

Scheme eight described refrigerators of the present invention is characterized in that, in scheme five described refrigerators, by making above-mentioned rotating drive unit along rotating in the opposite direction with the above-mentioned drawer door side of opening, carry out the pass of above-mentioned drawer door and go into.

By this formation, can be when half state of what is called, by the rotating drive unit with drawer door close into.

Can provide a kind of refrigerator that opens the door wide with less power according to the present invention.A kind of refrigerator that storage volume is increased perhaps can be provided.

Description of drawings

Fig. 1 is the stereogram of the formation of expression refrigerator of the present invention.

Fig. 2 is the cross-sectional illustration figure of the major part of the refrigerator in the first embodiment of the invention.

Fig. 3 is that second state detection unit in the first embodiment of the invention is provided with key diagram.

Fig. 4 is the vertical view of the formation of the drawer door drive unit in the expression first embodiment of the invention.

Fig. 5 represents the stereogram of the formation of the attaching parts in the first embodiment of the invention.

Fig. 6 represents the vertical view of the formation of the drive transmission member in the first embodiment of the invention.

Fig. 7 represents the stereogram of formation of the drive unit of the main body side in the first embodiment of the invention.

Fig. 8 is the cross-sectional illustration figure along the major part of A-A line among Fig. 4.

Fig. 9 is the doorframe of expression in the first embodiment of the invention and the stereogram of the formation of strengthening part.

Figure 10 is the figure of the opening action of the drawer door drive unit in the explanation first embodiment of the invention.

Figure 11 is the figure of the closing motion of the drawer door drive unit in the explanation first embodiment of the invention.

Figure 12 is the block diagram of formation of the control system of the door drive of expression in the first embodiment of the invention.

The flow chart of the control sequence when Figure 13 is the unlimited action of the door drive of expression in the first embodiment of the invention.

The flow chart of the control sequence when Figure 14 is the closed action of the door drive of expression in the first embodiment of the invention.

Figure 15 is the flow chart of the control sequence that begins during from the door standard-sized sheet of the door drive of expression in the first embodiment of the invention.

Figure 16 is the cross-sectional illustration figure of the major part of the refrigerator in the second embodiment of the invention.

Figure 17 represents the stereogram of the formation of the attaching parts in the second embodiment of the invention.

Figure 18 is the vertical view of the formation of the drawer door drive unit in the expression third embodiment of the invention.

Figure 19 is the stereogram of formation of the drive unit of the main body side of expression in the third embodiment of the invention.

Figure 20 is the cross-sectional illustration figure of the major part of the refrigerator in the fourth embodiment of the invention.

Figure 21 is the cross-sectional illustration figure along the major part of B-B line among Figure 20.

Figure 22 is that expression is observed the stereogram of the formation of the drawer container the fourth embodiment of the invention from the inside.

Figure 23 is the cross-sectional illustration figure of the major part of the refrigerator in the fifth embodiment of the invention.

Figure 24 is that expression is observed the stereogram of the formation of the drawer container the fifth embodiment of the invention from the inside.

Symbol description:

1 refrigerator main body, the partitions of 1a main body side, case in the 1b, the case back side in the 1c, 2 refrigerating chambers, 2a refrigerating-chamber door, 3 switch rooms, 3a switch room door, 4 ice-making compartments, 5 refrigerating chambers, 5a refrigerating chamber door, 6 vegetable compartment, 6a vegetable compartment door, 7 operation display part, 8 open switch, the 8a refrigerating chamber door open switch, 8b vegetable compartment door open switch, 12,15,16,17,901 containers, 12a, 15a, 16a, 17a, the 901a container bottom, 13 closers, 14 elastic sealing elements, 15b hole or projection, the 16b ribs, the auxiliary section of 16c flange, the 17b strengthening part is installed slot part, 24, the 24a motor, 25, the 25a motor pinion, 26,26a, 26b, 28,28a, the 28b idle pulley, 27,27a, 27b, 29,29a, the 29b smaller idler wheel, 30,30a, the 30b driven wheel, 31 moment limiting units, 32 rotation detection unit, 33 amount of movements, 34 push the position, 35 openings, 36 arrows, 38,39 gaps, 40 origin positions, 42 timing portions, 51 control modules, 52 Machine Rooms, 60 gears, 70 inform the unit, gap between 72,92a timer T1 alternation switch, 92b timer T2 alternation switch, 400,420,908 doorframes, 401a, 401b, 909a, the door installed surface of 909b doorframe, the rearward end of 402 doorframes, 403 rear portions are strengthened, and 410,411,902 strengthening parts, 420a doorframe flange, 421,422 rollers, 500, the 500a door drive, 510 first state detection unit, 511,521,531 magnet, 512,522,532 magnetic detection sensors, 520 second state detection unit, the position detection unit of 530 drive transmission member, 600,600a main body side drive unit, 610,610a drive unit case, 620 driving shafts, 640,640a, 640b, 907 drive transmission member, 650 bearing portions, 660,660a, the 660b press section of opening the door, 661 first planar portions, 661 second planar portions, 663 the 3rd planar portions, 664 Siping City's faces, 665 the 5th planar portions, 666 the 6th planar portions, 667 the 7th planar portions, 668 the 8th planar portions, 670,670a, the 670b press section of closing the door, 680 the top portions, 700,700a, 700b, 700e, the 700f attaching parts, 710,710a, 710b, 710e, the auxiliary section of 710f attaching parts, 711,711e, the 711f pedestal part, 712,712e, the 712f clamping part, 713 engagement devices, 714e, the end face of 714f attaching parts, 720,720a, 720b, 720e, the portion of closing the door of 720f attaching parts, 720c, the portion of closing the door of 720d container, 721 spaces, 722,722a, 722b, 722e, the 722f press surface of closing the door, 730,730a, 730b, 730e, the door opening portion of 730f attaching parts, 730c, the door opening portion of 730d container, 731 first press surfaces, 732 second press surfaces, 733 the 3rd press surfaces, 734 the 4th press surfaces, 735 the 5th press surfaces, 736 the 6th press surfaces, 737 the 7th press surfaces, 738 the 8th press surfaces, 740 lowest ends, 751 projections or hole, the rearward end of 752 attaching parts, the refrigerator main body of 900 prior aries, 903 fastening portions, 904 screws, 905 door opening portion, 906 portions of closing the door, 907a drive pin.

The specific embodiment

Below based on accompanying drawing, embodiments of the present invention are described.

Following with reference to the accompanying drawing 1 and the accompanying drawing 2 explanation first embodiment of the present invention.

(integral body of refrigerator constitutes)

In Fig. 1 and Fig. 2, refrigerator main body 1 is divided into a plurality of storage chambers, and topmost is a refrigerating chamber 2, is refrigerating-chamber door 2a as the double door of its opposite opened of opening for both sides to the left and right of an example.The storage chamber of about the downside of refrigerating chamber 2 is, cutting apart, for example one is a function switch room 3, another is the ice-making compartment 4 that accumulates, takes out the ice of making by not shown automatic ice-making plant.

Constitute so its underpart be possess can in face of pull out the refrigerating chamber 5 that the drawer door that opens wide is refrigerating chamber door 5a, foot is to possess the vegetable compartment 6 that drawer door is vegetable compartment door 6a.

Here, constitute above-mentioned refrigerating chamber 5 and above-mentioned vegetable compartment 6 and possess the refrigerating chamber door 5a and the vegetable compartment door 6a that can pull out forwards, backwards, the above-mentioned refrigerating chamber door 5a of at least one, vegetable compartment door 6a can electronicly as described later open wide in above-mentioned refrigerating chamber 5 or the above-mentioned vegetable compartment 6.

Constitute by electronic above-mentioned refrigerating chamber door 5a and the vegetable compartment door 6a of pulling out.By operating the button shown in the switch 8b of opening of opening switch 8a, vegetable compartment door of refrigerating chamber door, compare with about 1/10 power with original manual unlocking drawer door and just can open this by electronic refrigerating chamber door 5a that pulls out and vegetable compartment 6a.In an embodiment, deposit in refrigerating chamber under the state of 25kg, originally be about 40 newton by the power of manually pulling out, relatively therewith, the power of pushing electronic button is about 4 newton.For the refrigerating chamber of the about 170L of big capacity or be disposed at the refrigerating chamber below and become when opening the firmly vegetable compartment of the posture of difficulty,, also can open like a cork by enough one hands thus even filling under the heavier state of vegetables.

The refrigerator of the refrigerating-chamber door 2a that opens by the both sides to the left and right of the refrigerating chamber 2 making the drawer door that has like this electronic refrigerating chamber 5 that can open like a cork with one hand and vegetable compartment 6 and can open with above-mentioned less power, even big capacity refrigerator does not need bigger power just can open all doors yet.Thus, even child, old man or the little people of other strength, also all doors of switch easily.In addition, owing to can open,, also can prevent the thing landing or the reaction force collision when being opened and closed, easily open door even therefore in hand, hold the state of thing or be sitting under the state of wheelchair with less power.

In addition, refrigerator possesses refrigerating chamber 2, be located at above-mentioned refrigerating chamber 2 the below refrigerating chamber 5 and be located at the vegetable compartment 6 of the below of above-mentioned refrigerating chamber 5, above-mentioned refrigerating chamber 5 and above-mentioned vegetable compartment 6 possess the refrigerating chamber door 5a and the vegetable compartment door 6a that can pull out forwards, backwards, and constitute the above-mentioned refrigerating chamber door 5a of above-mentioned refrigerating chamber 5, make it possible to electronic as described later opening wide.Being provided with refrigerating chamber 5 near the center of refrigerator, is the refrigerating chamber that often uses, and pulls out drawer door automatically so need to surpass the magnetizing force of the attraction of refrigerating chamber door 5a in cooled interior space and seal.By the electronic drawer door of pulling out, it is convenient that use can become.

In addition, dispose refrigerating chamber by middle part at refrigerator, the refrigerating chamber that low temperature for example-20 is spent disposes compressor, for example be not that 50 ℃ Machine Room 52 is adjacent with high temperature, and it is adjacent with the low temperature of cooler configuration cooler chamber (omitting diagram) for example-40 ℃, thereby diminish with the temperature difference of adjacent chamber, therefore can reduce and adjacent chamber between the gauge of adiabatic wall.Also have, for vegetable compartment too by reducing the temperature difference, and can attenuate and adjacent Machine Room between heat-insulating material.

Also have, in aforesaid formation, make the formation that possesses cooling chamber at the rear of refrigerating chamber 5.Like this, owing to reduced the temperature difference between refrigerating chamber and the cooler, thus can further enlarge the internal volume of refrigerating chamber 5.At this, internal volume is meant the specified internal volume of JIS regulation.Therefore, need to pull out the power of refrigerating chamber 5 more,, can improve ease of use by making electronic formation of pulling out.

In addition, the door that refrigerator constitutes refrigerating chamber possesses operation display part 7, and possess refrigerating chamber door open switch 8a and vegetable compartment door open switch 8b, can show by the user and press above-mentioned switch, the drawer opening action.Here, under refrigerating chamber 5 is located at than vegetable compartment 6 situation above more close, if the top of opening switch 8b that switch 8a is located at the vegetable compartment door of opening with refrigerating chamber door, similarly be provided with position relation with door, understand easily when then the user operates which be operated opens switch 8, therefore more suitable.

(installation of switching mechanism (1))

Below, be example explanation door drive with vegetable compartment 6.Also having, also is same for refrigerating chamber 5.

The container 12 of vegetable compartment door 6a and store food by doorframe 400 can in face of pull out supported freely.

And, be provided with door drive 500 in the inside of vegetable compartment 6.Door drive 500 possesses: the drive unit 600 that comprises the main body side that is fixed at reductor refrigerator master 1 side, that slow down as the motor of the drive source of rotating drive unit with to the rotating speed of motor; And together open and close with a door 6a who opens and closes vegetable compartment 6, be located at the attaching parts 700 that connect on the strengthening part 410 that is provided with between the left and right sides doorframe 400 in the present embodiment, and become 600 pairs of attaching parts 700 of drive unit by main body side the constituting of reinforcing and switch vegetable compartment door 6a on the moving direction of doorframe 400.To illustrate afterwards about the drive unit 600 of main body side and the detailed formation and the function of attaching parts 700.

In addition, in vegetable compartment 6, be provided with this vegetable compartment 6 of detection and whether close (being whether vegetable compartment door 6a is closure state) fully, and send first state detection unit 510 that these signal grounds constitute to control module 51 as described later.The method to set up of this first state detection unit 510 is, the magnetic detection sensor 512 that constitutes this first state detection unit 510 for example is set on the drive unit 600 of aforementioned body side, the magnet 521 that makes these magnetic detection sensor 512 actions is set on above-mentioned attaching parts 700, thereby can detect vegetable compartment 6 effectively and whether close (that is, whether vegetable compartment door 6a is closure state) fully.

Also have, top at vegetable compartment door 6a, be provided with detect that this vegetable compartment 6 is closed or the opening of vegetable compartment door 6a whether in ormal weight (opening 35 of closing the driving amount described later) for example for half state about 30mm, and send second state detection unit 520 of these signals as described later to control module 51.

The method to set up of this second state detection unit 520 is, for example as shown in Figure 3, the magnetic detection sensor 522 that constitutes this second state detection unit 520 is set on the partitions 1a of refrigerator main body side, the magnet make these magnetic detection sensor 522 actions is set on above-mentioned vegetable compartment door 6a, thus can detect effectively whether vegetable compartment 6 closes or the opening of vegetable compartment door 6a (Fig. 3 35) whether in ormal weight for example for half state about 30mm.In addition, if with this second probe unit such as for example half-open door alarm device of state detection unit 520 double as, then become the formation favourable to manufacturing cost.

(formation that multistage acceleration links)

Next, describe drive unit 600 that possesses main body side and the formation of being located at the door drive 500 of the attaching parts 700 on the strengthening part 410 in detail with reference to Fig. 4 to Figure 11.At this, door drive 500 is illustrated following as the device of being located on the vegetable compartment 6, but for refrigerating chamber 5 too.Also have,, mark identical Reference numeral and detailed for the formation identical with above-mentioned Fig. 1 to Fig. 3.

Fig. 4 is the vertical view of the formation of the drawer door drive unit in the expression first embodiment of the invention, Fig. 5 represents the stereogram of the formation of the attaching parts in the first embodiment of the invention, and Fig. 6 represents that the rotatable parts in the first embodiment of the invention are the vertical view of the formation of drive transmission member.

In Fig. 4 to Fig. 6,400 for be located at above-mentioned drawer door (the vegetable compartment door 6a of Fig. 2) about doorframe, and possess and connect the strengthening part 410 that these left and right sides doorframe 400 ground are provided with.And, on strengthening part 410, be provided with attaching parts 700 described later, this attaching parts 700 are accepted the driving force of the drive transmission member 640 on the drive unit 600 (Fig. 2 600) from the main body side that is installed on main body side, thereby constitute the switch that carries out above-mentioned drawer door (the vegetables door chamber 6a of Fig. 2) automatically.

On the drive unit 600 of aforementioned body side (Fig. 2 600), axle is supported with drive transmission member 640, this drive transmission member 640 is for making the driving shaft 620 rotations rotating drive body freely into rotary output axis, on this drive transmission member 640, be provided with and carry out being disposed at of above-mentioned drawer door (the vegetable compartment door 6a of Fig. 2) unlimitedly and make the locational a plurality of press sections 660 of opening the door that change gradually apart from the distance of center of rotation towards rotation direction.Promptly be provided with a plurality of power transfering parts press section 660 of promptly opening the door on rotatable parts, it is positioned at following position,, by electronic rotation, when door is opened, along with to advancing with the direction of direction of rotation, becomes far away apart from the distance of center of rotation that is.

On this opens the door press section 660, be provided with the press section at for example 8 places, distance corresponding to distance driving shaft 620 is provided with first press section 661 at distance r1 place, be provided with second press section 662 at distance r2 place, be provided with the 3rd press section 663 at distance r3 place, be provided with the 4th press section 664 at distance r4 place, be provided with the 5th press section 665 at distance r5 place, be provided with the 6th press section 666 at distance r6 place, be provided with the 7th press section 667 at distance r7 place, be provided with the 8th press section 668 at distance r8 place, each press section has the planar portions 661～668 that is plane, and be positioned at be roughly a part on the radioactive ray from driving shaft 620 on.The in-plane that is the part of general plane shape forms roughly center of rotation direction.Here, r1＜r2＜r3＜r4＜r5r＜6r＜7r＜8r.

In addition, on this drive transmission member 640, the pass that can carry out above-mentioned drawer door (the vegetable compartment door 6a of Fig. 2) is provided with the press section 670 of closing the door with going into.

And, in order to simplify the formation of attaching parts 700 described later, with above-mentioned close the door press section 670 apart from center of rotation apart from r9 set for above-mentioned a plurality of press sections 660 of opening the door in be positioned at apart from the press section of center of rotation farthest, for example the 8th press section 668 is roughly the same distance.

In addition, for above-mentioned attaching parts 700, for fixing to the fastening portion 710 of the attaching parts on the above-mentioned strengthening part 410 and, the portion of closing the door 720 that can carry out the door opening portion 730 of the attaching parts that the switch ground of above-mentioned drawer door (the vegetable compartment door 6a of Fig. 2) constitutes and attaching parts is one or monomer and forms as with reference to the aftermentioned of Fig. 8.

Also have, on the door opening portion 730 of these attaching parts, plane press surface is set (for example, eight grades face of the 8th press surface of first press surface to 738) from 731, this press surface is to be disposed at the corresponding locational a plurality of stair-stepping stage portion in press section 660 of opening the door with configuration on above-mentioned drive transmission member 640 a plurality of, rotational motion by above-mentioned drive transmission member 640, the planar portions 661～668 that makes the press section 660 of opening the door and the press section 731～738 of attaching parts 700 roughly face contact transferring power simultaneously, rotate along arrow C CW direction, and be transformed into the rectilinear motion of the door opening portion 730 of above-mentioned attaching parts, thus, carry out opening wide of above-mentioned drawer door (the vegetable compartment door 6a of Fig. 2).Like this, the driving force of rotatable parts can be transmitted efficiently to attaching parts, thereby the door of refrigerator can be opened wide with less power.

Also have, in the portion of closing the door 720 of above-mentioned attaching parts, with be located at above-mentioned drive transmission member 640 on corresponding position, the press section 670 of closing the door on, be provided with the press surface 722 of closing the door, thereby the rotational motion that makes above-mentioned drive transmission member 640 follow the usual practice as when opening wide above-mentioned drawer door opposite towards arrow C W direction rotate, and be transformed into the rectilinear motion of the portion of closing the door 720 of above-mentioned attaching parts, carry out closing of above-mentioned drawer door (the vegetable compartment door 6a of Fig. 2) thus.In other words, constituting the press section 670 of will closing the door is located on the drive transmission member 640, this close the door press section 670 can with when closing this door of refrigerator, close drawer door under the inadequate state (half-open door state) close into, be transformed into the rectilinear motion of above-mentioned attaching parts 700 by the rotational motion of press section 670 that this is closed the door, can carry out the pass of the drawer door of above-mentioned half-open door state and go into.

In addition, because the rotational motion of the press section 670 of closing the door of above-mentioned drive transmission member 640, it is better that space 721 is set, make above-mentioned close the door press section 670 not with above-mentioned attaching parts 700 butts.

In addition, an example as the rotation detection unit of the origin position 40 of surveying above-mentioned drive transmission member 640 (Figure 10 described later 40), as shown in Figure 4, have by being located at above-mentioned drive transmission member 640 and carry out the position detection unit 530 of the drive transmission member that magnetic detection sensor 532 that switch motion ground constitutes constitutes from the magnetic force of on one's body magnet 531 and this magnet of perception.Have again, if make the words of formation of above-mentioned magnetic detection detector 532 being located at the drive unit 600 (Fig. 2 600) of main body side, since can with the distribution or the holding wire of the drive unit 600 shared above-mentioned magnetic detection sensors 532 of aforementioned body side, therefore can become favourable formation on making.

Then, key diagram 7.

Fig. 7 represents the stereogram of formation of the drive unit 600 of the main body side in the first embodiment of the invention, for the purpose of simplifying the description, and as the key diagram in the perspective drive unit case 610.Have again,, mark identical Reference numeral and detailed for the formation identical with above-mentioned Fig. 1 to Fig. 3.

Among the figure, on the turning cylinder of motor 24, be provided with motor pinion 25, slow down with idle pulley 26 engagements.Idle pulley 26 and smaller idler wheel 27 are one and rotate, smaller idler wheel 27 and idle pulley 28 engagements.Idle pulley 28 is one with smaller idler wheel 29 and rotates that smaller idler wheel 29 slows down with driven wheel 30 engagements.Driving shaft 620 is connected with driven wheel 30, constitutes by this transmission, and the rotating speed of motor 24 for example is reduced to about 1/100, makes the driving of being located on the driving shaft 620 transmit 640 and rotates.In the present embodiment, be provided with torque limiter 31 between idle pulley 28 and the smaller idler wheel 29, when on drive transmission member 640, applying excessive external force, because limiting unit 31 is mediate, thereby idle pulley 28 and smaller idler wheel 29 slide mutually, can prevent the damage of main body side drive unit 600 like this.

Also have,, make the formation that for example can detect the turned position of driving shaft 620 by on driving shaft 620, rotation detection unit 32 being set as an example of rotation detection unit.An example of this rotation detection unit 32 is the variable resistances because of its resistance change of rotation of axle.In addition, as the another one example of rotation detection unit the position detection unit 530 of being carried out the drive transmission member that the magnetic detection sensor 532 of switch motion constitutes by as shown in Figure 4 magnet 531 and the magnetic force by this magnet 531 of perception is arranged.

Next the height and position relation of strengthening part 410 and attaching parts 700 is described by Fig. 8.Fig. 8 is the cross-sectional illustration figure along the major part of A-A line among Fig. 4.Also have,, mark identical Reference numeral and detailed for the formation identical with above-mentioned Fig. 1 to Fig. 7.

Among the figure, for attaching parts 700, for fixing to the fastening portion 710 of the attaching parts on the above-mentioned strengthening part 410 and, can carry out the door opening portion 730 of the attaching parts that the switch ground of drawer door constitutes and the portion of closing the door 720 of attaching parts is one or formation discretely.

And the fastening portion 710 of these attaching parts possesses: by the height and position of attaching parts 700 self being remained in the pedestal part 711 that ground, assigned position place forms with the lower surface butt of strengthening part 410; With the depth size with attaching parts 700 can be remained in the clamping part 712 that assigned position place ground forms by the rib of putting into strengthening part 410, the engagement device 713 by screw etc. is fixed on the strengthening part 410 removably.

In addition, the size of the thickness h 12 of the fastening portion 710 of these attaching parts is set according to the size of the height h11 of above-mentioned " from pull the drawer out first power of maximum of door of halted state " or strengthening part 410, for example suppose that strengthening part 410 is formed by 0.8 thick steel plate, above-mentioned height h11 is of a size of 4～10mm, and form the fastening portion 710 of attaching parts by synthetic resin, then the size of the thickness h 12 of the fastening portion 710 of above-mentioned attaching parts is set at about 6～15mm.That is to say that can setting " h1+h2+h3 " above-mentioned in the conventional example than Fig. 9 for, to be about the size of 12～30mm little.

So, the thickness h 13 of the portion of closing the door 720 of attaching parts and the door opening portion 730 of attaching parts is determined by the associated volume h14 between the portion of closing the door 720 of the door opening portion 730 of open the door press section 660 or the close the door press section 670 and the attaching parts of above-mentioned " from pull the drawer out first power of maximum of door of halted state " and drive transmission member 640 or attaching parts, for example, when forming above-mentioned attaching parts or drive transmission member by synthetic resin, be set at for example about 5～12mm more than.That is to say, can set the also little size of size for than the thickness h 12 of the fastening portion 710 of above-mentioned attaching parts.

Therefore, in the present invention, be set in from above-mentioned drawer door front by height and position and see on the position that overlaps at least partially in thickness direction with above-mentioned strengthening part 410 the switch door 730 of the portion of closing the door 720 of attaching parts, attaching parts, like this, the depth dimensions h15 that reduces of container 12 is diminished.

Also have, according to inventor's experiment and simulation etc. as can be known, if the steel plate of above-mentioned strengthening part 410 by for example 1.2mm formed, above-mentioned height dimension h11 is of a size of about 3～6mm, with attaching parts 700 self by Du Lalong (ジ ユ ラ ロ Application, ジ ユ ラ コ Application according to original text is not found) formation such as resin, then the size of the thickness h 12 of the fastening portion 710 of above-mentioned attaching parts can be set into about about 5～8mm.That is to say that the thickness h 13 that can set for the door opening portion 730 of the portion of closing the door 720 of above-mentioned attaching parts or attaching parts is of a size of equal following size, therefore can further reduce the size h15 that reduces the degree of depth of above-mentioned container 12.

Next, describe by Fig. 9.Fig. 9 is the doorframe 400 of expression in the first embodiment of the invention and the stereogram of the formation of strengthening part 410.In addition, about the formation identical, mark identical symbol and detailed with above-mentioned Fig. 1 to Fig. 9.

Among the figure, doorframe 400 be located at above-mentioned drawer door (the vegetable compartment door 6a of Fig. 2) about doorframe, possess the strengthening part 410 that connects this left and right sides doorframe 400, and this strengthening part 410 sees and forms the U font to possess above-mentioned attaching parts 700 in this bottom from above-mentioned drawer door front.Make in addition from the part of the press surface 731～738 of the attaching parts 700 of planar portions 661～668 transferring power of the press section 660 of opening the door and be positioned at than the periphery of strengthening part more in the outer part.That is, be positioned at the downside of strengthening part 410.According to this formation, be positioned at than the periphery of parts more in the outer part by the part that makes the power that transmits attaching parts, then compare the periphery situation more in the inner part that is located at than parts, can make parts more near refrigerator inwall side.The volume that therefore can increase the drawer container is measured therewith accordingly.

And, make the position of this strengthening part 410 be positioned at least central authorities than the depth size total length of above-mentioned doorframe 400, the distortion of doorframe 400 self in the time of can suppressing bearing load so more by reveal.That is to say that the position L12 that makes above-mentioned strengthening part 410 is below 1/2 of depth size total length L11 of above-mentioned doorframe 400, thereby, the caused distortion of load of doorframe 400 is suppressed with reducing.

Therefore, even because of the food weight that for example in the storing containers that above-mentioned doorframe 400 supports, stores different on about this storing containers, above-mentioned thereby " from pull the drawer out first power of maximum of door of halted state " about on also different, because it is the elastic deformation amount of the L12 size portion of above-mentioned doorframe 400 is less, therefore above-mentioned in conventional example Figure 11, for example open wide the time and for example can be suppressed lessly by the transient deviation of the door by going out between the unlimited time of the door installed surface 401b of right side doorframe by the door of the door installed surface 401a of left side doorframe by going out.

Thereby, since can reduce the initial stage that drives the drawer door drive unit, for example from time of drawing back that main body is drawn back magnetic seal spare about the amount of transient deviation and then door self transient vibration is arranged, therefore can reduce because of vibrating caused noise and user's sense of discomfort.

Also have, append the rear portion between the doorframe rearward end 402 about above-mentioned and strengthen 403,, also can reduce the deflection of this doorframe 400 self even then above-mentioned " from pull the drawer out first power of maximum of door of halted state " acts on above-mentioned doorframe 400 if connect.

In addition, make in face of the rearward end 752 of above-mentioned attaching parts 700 more leans on than the rearward end 402 of above-mentioned door frame.That is to say, set the size of the L13 of Fig. 9 bigger than zero.Like this, under state shown in Figure 9, promptly, assemble under the situation of left and right sides doorframe 400, strengthening part 410 and attaching parts 700 in part, during the carrying of these part department of assembly product in manufacture process, above-mentioned attaching parts 700 are difficult to and butts such as other product or other equipment, therefore become the formation favourable to manufacturing process.

Also have and since with the rearward end 752 of above-mentioned attaching parts 700 set for more lean on than the rearward end 402 of above-mentioned doorframe in face of, the rearward end 752 that therefore becomes above-mentioned attaching parts 700 not with the formation of interior case back side 1c (1c of Fig. 2) butt of refrigerator main body.Thereby,, therefore can guarantee the adiabatic thickness of this part owing to can make above-mentioned interior case back side 1c constitute the general plane shape.

(opening action)

Detailed action when then, can door drive 10 of the present invention opening vegetable compartment door 6a with reference to description of drawings.Figure 10 is the figure of the opening action of the drawer door drive unit in the explanation first embodiment of the invention.In addition, for the formation identical, mark identical Reference numeral and detailed with above-mentioned Fig. 1 to Fig. 9.

Among the figure, (a) be origin position described later, expression vegetable compartment 6 closing state.Then, by according to (b) (c) (d) (e) sequentially-operating of (f) represent the unlimited action of vegetable compartment 6.

The origin position of Figure 10 (a) at first, is described.In (a), with to push position 34 consistent, vegetable compartment door 6a (the vegetable compartment door 6a of Fig. 2) is in the close position with the diagram left end of the illustrated attaching parts 700 of solid line.For refrigerator,, also exist the user former thereby with the situation that pulls out vegetable compartment door 6a because of some even have this door drive 500 of the present invention.Perhaps, when hindering door drive 500 for some reason and can't move, preferably the user can be by manually carrying out switch freely.This when manually carrying out switch, user's manual activity when door drive 500 does not preferably hinder vegetable compartment door 6a switch, or the formation of phenomenon such as heavy do not occur moving.

Manually pull out vegetable compartment door 6a when opening the user from vegetable compartment door 6a closed condition, the door opening portion 730 of being located at the attaching parts on the vegetable compartment door 6a moves to the diagram left side, arrives dotted line position.On dotted line position, additional ' for each Reference numeral.At this moment, drive transmission member 640 is in the position shown in the solid line among Figure 10 (a), in this position, the diagram the top portion 680 of drive transmission member 640 and the door opening portion 730 of attaching parts move to the diagram left, there is gap delta 4 between the diagram lowest end 740 of above-mentioned the top portion 680 and immediate attaching parts at this moment, even exist the door opening portion 730 of attaching parts to move to the diagram left, the also discontiguous position of above-mentioned the top portion 680 and above-mentioned lowest end 740 relation, and there is gap delta 3 between first press surface 731 of first press section 661 of drive transmission member 640 described later and the door opening portion 730 of attaching parts, under vegetable compartment door 6a closing state, if have above-mentioned first press section 661 and first press surface, 731 discontiguous position relations, then because when user's hand switch vegetable compartment door 6a, attaching parts 700 do not contact with drive transmission member 640, thus switch vegetable compartment door 6a freely.

Suppose that the position that is called this drive transmission member 640 is in origin position 40 in the present invention.

Because above-mentioned drive transmission member 640 is rotated freely around driving shaft 620, the door opening portion 730 of attaching parts moves supported freely at the diagram left and right directions, and the door opening portion 730 of attaching parts is in vegetable compartment door 6a side, thereby the door opening portion of attaching parts 730 is shown the opening action of vegetable compartment door 6a to the left-hand action schedule.At this moment, the datum line of the position 34 of the diagram left end of the attaching parts 700 under the expression vegetable compartment door 6a closed condition represents to push the position.

When beginning to drive, as Figure 10 (b), the door opening portion 640 of driver part is rotated along the CCW direction, and first press section 661 contacts with first press surface 731, the door opening portion 730 of attaching parts is produced the power of arrow 23b direction.At this moment, first press section 661 is in apart from driving shaft 620 and is the position apart from r1 shown in Figure 4, thereby if the torque that applies on driving shaft 620 is T, then first press section 661 is T/r1 to the power of door opening portion 730 transmission of attaching parts.Push-on force by this power being set for power than the magnetic seal spare that draws back vegetable compartment door 6a, closer 13 and quicken the deadweight of vegetable compartment door 6a and the power of the quality of the food deposited make a concerted effort also big, by drawing back the absorption of magnetic seal spare, the door opening portion 730 and the vegetable compartment door 6a one of attaching parts illustrate left-hand in the same way and move, thereby vegetable compartment 6 begins to open.

And then under the state of Figure 10 (c) that drive transmission member 640 is rotated along the CCW direction, second press section 662 contacts with second press surface 732, and first press section 661 deviates from from first press surface 731.That is, second press section 662 is in apart from driving shaft 620 and is the position apart from r2 shown in Figure 4, and r2＞r1, owing to compare 661, the second press sections 662, first press section from the distance as the driving shaft 620 of center of rotation, therefore the circumferential speed that rotates is fast.Like this, behind second press section 662 and second press surface, 732 butts, first press section 661 from first press surface 731 away from.In this state, second press section 662 contacts with second press surface 732, gives the power of arrow 23c.At this moment, second press section 662 is in apart from driving shaft 620 and is the position apart from r2 shown in Figure 4, thereby if the torque that applies on driving shaft 620 is T, then second press section 662 is T/r2 by the power that second press surface 732 transmits to the door opening portion 730 of attaching parts.This power under the state of Figure 10 (b) than little in the power that applies on by the door opening portion 730 of first press section 661 on the direction of arrow 23b in attaching parts, but because magnetic seal spare draws back, therefore at this moment if with the power that applies set for than the power of the push-on force of closer 13 and the quality of the food that further quickens vegetable compartment door 6a deadweight and deposit make a concerted effort also big, the door opening portion 730 and the vegetable compartment door 6a one of attaching parts illustrate left in the same way and move, and continue the opening action of vegetable compartment 6.

Then, under the state of Figure 10 (d) that drive transmission member 640 is rotated along the CCW direction, the 3rd press section 663 contacts with the 3rd press surface 733, and second press section 662 deviates from from second press surface 732.That is, the 3rd press section 663 is in apart from driving shaft 620 and is the position apart from r3 shown in Figure 4, and r3＞r2, owing to compare 662, the three press sections 663, second press section from the distance as the driving shaft 620 of center of rotation, therefore the circumferential speed that rotates is fast.Like this, behind the 3rd press section 663 and the 3rd press surface 733 butts, second press section 662 deviates from from second press surface 732.In this state, the 3rd press section 663 contacts with the 3rd press surface 733, gives the power of arrow 23d.At this moment, the 3rd press section 663 is in apart from driving shaft 620 and is the position apart from r3 shown in Figure 4, thereby if the torque that applies on driving shaft 620 is T, then the 3rd press section 663 is T/r3 by the power that the 3rd press surface 733 transmits to the door opening portion 730 of attaching parts.This power under the state of Figure 10 (c) than little in the power that applies on by the door opening portion 730 of second press section 662 on the direction of arrow 23c in attaching parts, but the direction because vegetable compartment door 6a has carried out opening action to arrow 23d moves, therefore at this moment vegetable compartment door 6a has and comprises deadweight and the speed corresponding amount of exercise of container with the food of depositing, then pass through the power that transmit to the 3rd press surface 733 this amount of exercise and the 3rd press section 663, the pulling force that can resist closer 13 further continues opening action.

And then, rotate along the CCW direction in drive transmission member 640, with above-mentioned same, in turn the 4th press section 664 contacts with the 4th press surface 734, then, the 5th press section 665 contacts with the 5th press surface 735, again next, the 6th press section 666 contacts with the 6th press surface 736, the 7th press section 667 contacts (state of Figure 10 (e)) with the 7th press surface 737 then, last the 8th press section 668 contacts (state of Figure 10 (f)) with the 8th press surface 738, thereby, can further continue the opening action of vegetable compartment door 6a.

And, the state that Figure 10 (f) STA representation drive transmission member 640 afterwards roughly deviates from from the door opening portion 730 of attaching parts.

More than the scope of amount of movement 33 of attaching parts 700 under from the state of Figure 10 (a) to the state of Figure 10 (f) door opening portion 730 that becomes attaching parts accept the driving scope of opening from the scope of the power of drive transmission member 640.At this, the amount of movement 33 of the door opening portion 730 of these attaching parts set for promptly to close reheat range than the amount of pushing that is produced by closer 13 also proper greatly.Even closing reheat range, promptly push stroke by closer produced be that the amount of movement 33 of the door opening portion 730 of 50mm and attaching parts is the words more than the 60mm, even then the door opening portion 730 in the position attaching parts shown in (Figure 10 (f)) stops, be that vegetable compartment door 6a stops, the vegetable compartment door 6a that has just opened by closer 13 can not close yet.

And, if set the amount of movement 33 of the door opening portion 730 of above-mentioned attaching parts, make that it is that for example above-mentioned drawer door (the vegetable compartment door 6a of Fig. 2) opens wide 1/4 of size entirely, just, it is also big promptly to close reheat range than the amount of pushing that is produced by above-mentioned closer 13, then becomes the formation that the vegetable compartment door 6a that just opened by above-mentioned closer 13 can not close.

And,,, therefore improved the ease of use of this refrigerator then because the storage food in the drawer container 12 (container 12 of Fig. 2) can be open into clearly degree of user if above-mentioned drawer door is opened wide complete more than 1/4 of size of opening wide.

Also have, when the state from above-mentioned Figure 10 (f) further opens wide the door opening portion 730 of vegetable compartment door 6a and attaching parts when the diagram left moves, though the door opening portion 730 of attaching parts is not accepted the driving force from drive transmission member 640, but because vegetable compartment door 6a keeps the speed to arrow 23f direction, so vegetable compartment door 6a slows down gradually and stops to continue opening action up to the frrction load that has because of doorframe 400 (Fig. 2 400).Because so action, so the opening of vegetable compartment door 6a is bigger than the amount of movement 33 of the door opening portion 730 of attaching parts.

As described above, owing to can be achieved as follows action, promptly, when carrying out opening action, vegetable compartment door 6a is not continuously applied to the driving force of opening direction, only when beginning to open, apply driving force, the frictional force that has because of doorframe 400 of the translational speed that obtains in the scope of driving force is slowed down gradually and is stopped afterwards, therefore when the user stands on before the shop front, or when door is placed with article, even meet vegetable compartment door 6a, also owing to do not apply the driving force of opening direction but safety.

As described above, vegetable compartment door 6a is when closure state begins to open, be configured near the most close driving shaft 620 first press section 661 by the door opening portion 730 that goes out and drive attaching parts, though thereby be low speed but the bigger power of output, thereby draw back magnetic seal spare, after this continue to draw back, being located at than first press section 661 more leans on second press section 662 in a distant place by the door opening portion 730 that goes out attaching parts, in turn being located at afterwards than second press section 662 more leans on the 3rd press section 663 in a distant place by the door opening portion 730 that goes out attaching parts, being located at than the 3rd press section 663 more leans on the 4th press section 664 in a distant place by the door opening portion 730 that goes out attaching parts, be located at than the 7th press section 667 and more lean on the door opening portion 730 of the 8th press section 668 in a distant place, continue the opening action of vegetable compartment door 6a by the attaching parts of exerting oneself.Therefore, though reduce successively,, for example can be similar to the situation that the user manually opens the door wide, so refrigerator easy to use can be provided because the unlimited speed of door is quickened successively by exerting oneself.

By above-mentioned action, vegetable compartment door 6a opens wide back (Figure 10 (f) back), and drive transmission member 640 further continues to rotate to the CCW direction, and the state arriving Figure 10 (a) just stops operating behind the origin position 40.In addition, at this moment, because vegetable compartment door 6a is in and opens, so attaching parts 700 of course not are in the position shown in the solid line of Figure 10 (a), but be in the diagram left, move to for example state of the position of dotted line.

(closing motion)

When closing vegetable compartment door 6a, can occur because of some reason vegetable compartment door 6a till magnetic seal spare 14 is adsorbed does not close, between the refrigerator main body 1 of magnetic seal spare 14, produce the gap, so-called half state.The action of this door drive 500 when becoming half state is described with reference to Figure 11.

The figure of the action when Figure 11 is the closed vegetable compartment door 6a of expression door drive of the present invention 500, (a) be that expression vegetable compartment door 6a does not have closure, the diagram left end of attaching parts 700 is in from pushing position 34 and moves and become the state that the driving scope is an opening 35 of closing that can carry out closing motion.If on vegetable compartment door 6a, be provided with closer 13, the push-on force that is produced because of closer 13 then, refrigerating chamber is pushed into usually and closes, but also can occur once in a while being waited some reason because of part food blocks to hang, the temporary transient pause of the action of doorframe 400 and the situation that can not be pushed into.

At this moment, when make drive transmission member 640 around driving shaft 620 when arrow C W direction is rotated, rotate in the space 721 of the portion of closing the door 720 that constitutes attaching parts the press section 670 of closing of drive transmission member 640, with press surface 722 butts of closing the door (Figure 11 (b)) of the portion of closing the door 720 that constitutes attaching parts.

Afterwards, when making drive transmission member 640 further when arrow C W direction is rotated, it is mobile to be pressed along arrow 36 by the above-mentioned press section 670 above-mentioned press surfaces 722 of closing the door of closing the door, so the diagram left end of attaching parts 700 moves to and pushes 34 places, position (Figure 11 (c)).

Position shown in this Figure 11 (c) is represented to be adsorbed in the position that vegetable compartment door 6a closes fully on the refrigerator main body 1 until magnetic seal spare 14.

Afterwards, the state of Figure 11 (d) is rotated and become to drive transmission member 640 along arrow C CW direction, and turn to and Figure 10 (a) shown in stop behind the same origin position 40.

By above-mentioned action,, vegetable compartment door 6a becomes so-called half state even not exclusively closing, also can by make drive transmission member 640 along and when opening vegetable compartment door 6a opposite direction rotate, attaching parts 700 are applied the power of closing vegetable compartment door 6a direction, thereby vegetable compartment door 6a can close, therefore can prevent half, this formation suits.

As illustrating before this, though the power when opening vegetable compartment door 6a need be to draw back the above power of making a concerted effort of the power of magnetic seal spare 14 and the push-on force that closer 13 is produced, but, owing to when closing, do not need to open the power of magnetic seal spare 14, and the push-on force that does not have closer 13 to be produced, therefore comparing in order to open required power by door drive 500 applied forces of the present invention is less power, and is enough.According to present embodiment, owing to be when closing vegetable compartment door 6a, by distance driving shaft 620 farthest the 8th press section 668 and roughly be in the press section 670 of closing the door of same distance, push close the door 720 formation of attaching parts, even therefore dummy be added on the driving shaft 620 driving torque with open identical, also because the power of closing is compared power required when opening and reduced r1/r9 (with reference to Fig. 4), therefore this formation suits.Even just in case hand sandwiches again between vegetable compartment door 6a and the refrigerator main body 1, because chucking power is less, so security is higher like this.

(formation of control system)

The formation of the control system that is used for control gate drive unit 500 then, is described with reference to accompanying drawing 12.Figure 12 is the block diagram of formation of control system of door drive 500 of the refrigerator of presentation graphs 1 to Fig. 2.In addition, about the door drive 500 of vegetable compartment door 6a and about the drive unit 500 of refrigerating chamber door 5a owing to be same control system and be same handling process that therefore in the following description, 6a describes for the vegetable compartment door.

Door is opened switch 8 and is operated when opening vegetable compartment door 6a by electronic the user, and the signal that will operate is sent to control module 51.Be located at first state detection unit 510 of each motor 24 of the main body side drive unit 600 on the vegetable compartment door 6a, the rotation detection unit 32 of tumbler that detects driving shaft 620 and detecting gate on off state, second state detection unit 520 is connected on the control module 51.Rotation detection unit 32 is by constituting because of the variable resistance of its resistance change of rotation of axle or the probe unit of microswitch etc. that detects the regulation turned position of axle.

Door state detection unit possesses to detect whether vegetable compartment door 6a closes first state detection unit 510 of (being whether vegetable compartment door 6a is closure state) fully and whether the opening of detection vegetable compartment door 6a is second state detection unit 520 of the opening (being whether vegetable compartment door 6a is standard-sized sheet) below 35 of regulation.Above-mentioned door state detection unit promptly can be the Hall element that the magnet that possessed of vegetable compartment door 6a and refrigerator main body 1 are possessed, and also can be probe units such as microswitch.

Possess to what the user informed that vegetable compartment door 6a is in half state and inform unit 70.This informs that unit 70 is by making buzzer ring moving or lamp is lighted or flicker etc. is informed.

Timer portion 42 is in the stand-by time of each function that control is relevant with the switch of vegetable compartment door 6a under half state and actuation time etc. at vegetable compartment door 6a.Timer T1 alternation switch 92a is used to make the setting value of the continuation time timer T1 of user's changeable vegetable compartment door 6a when full-gear is converted to half state.Timer T2 alternation switch 92b is used to make the setting value of the continuation time timer T2 of user's changeable vegetable compartment door 6a when closure state is converted to half state.

Next, with reference to Figure 13 the order of opening wide control when opening wide vegetable compartment door 6a is described.Figure 13 is the flow chart of the order of the unlimited control of expression when opening wide vegetable compartment door 6a.

When beginning during opening action (S001), control module 51 monitors the state of rotation detection unit 32, and whether the drive transmission member 640 of the drive unit 600 of sonde body side is in the origin position 40 that begins to move (Figure 10 (a) 40) (S002).Here, origin position 40 is meant, as Figure 10 (a) was illustrated, when manually carrying out the switch of vegetable compartment door 6a, drive transmission member 640 also was in not the state of the position of interfering with attaching parts 700.

According to the detection of S002, when drive transmission member 640 was not in origin position 40,24 energisings made drive transmission member 640 rotations and are in origin position 40 (S003) to motor.Make motor 24 along rotation of CW direction or the judgement of rotating along the CCW direction, according to being offset to that direction with respect to origin position, determine motor 40 is applied the direction of driving voltage by control module 51 from the signal determining drive transmission member 640 that detects probe unit 32.

Detect drive transmission member 640 and be in origin position 40, and control module 51 detects user's actuating doors and open switch 8 back (S004), 24 energisings make drive transmission member 640 rotate (S005) to motor.The rotation direction of drive transmission member 640 at this moment is an arrow C CW direction in Figure 10, if drive transmission member 640 is rotated, then vegetable compartment door 6a opens as Figure 10 explanation.Motor 24 is rotated further, and after the turned position of confirming the drive transmission member 640 that rotation detection unit 32 detects is origin position 40 (S006), makes motor stop (S007), finishes a series of opening action (S008).

Next, illustrate that with reference to Figure 14 vegetable compartment door 6a is from the control sequence of incomplete closing state (being that vegetable compartment door 6a is half state) when closing vegetable compartment door 6a.Figure 14 is the flow chart of expression order of closed control when closing vegetable compartment door 6a.

About beginning action (S051), detect origin position 40 (S052), to the action of motor 24 energisings (S053), identical with above-mentioned S001 to S003 from Figure 13.

Detect origin position 40 in S052 after, first state detection unit 510 detects the closure (S054) of vegetable compartment door 6a.In this detects,, can confirm that then vegetables door 6a is in half state but is in closure state, therefore finishes to close the door action (S055) if detect the closure of vegetable compartment door 6a.Do not detect vegetable compartment door 6a at first state detection unit 510 when closed, whether the opening that second state detection unit 520 detects between vegetable compartment door 6a and the refrigerator main body 1 is opening (S056) below 35.In this S056, if vegetable compartment door 6a is failed to detect in second state detection unit 520, then because vegetable compartment door 6a opens opening more than 35, so door drive 500 can not be closed vegetable compartment door 6a.At this moment end process (S066).

In S056, when detect opening below 35 after, vegetable compartment door 6a be opening be in open mode (being that vegetable compartment door 6a is half state) below 35 and be in can be closed by door drive 500 the zone, therefore to motor 24 by (S058).At this moment rotation direction is the CW direction among Figure 11.By motor 24 is switched on the stipulated time (for example 3 seconds) (S058, S059) to the CW direction, the state that drive transmission member 640 arrives Figure 11 (c) makes attaching parts 700 along arrow 36 directions (promptly closing the direction of vegetable compartment door 6a), thereby closes vegetable compartment door 6a.

After the process stipulated time, 24 energisings make it rotate (S060) along the CCW direction to motor now, shown in Figure 11 (d), drive transmission member 640 turns to and is in origin position 40, go out drive transmission member 640 in signal detection and be in origin position 40 backs (S061), the rotation of motor 24 is stopped (S062) by rotation detection unit 32.Then, first state detection unit 510 detects vegetable compartment door 6a whether closed (S063).At this moment, when vegetable compartment door 6a is complete closure, end process (S066).

In S063, if vegetable compartment door 6a closure is failed to detect in first state detection unit 510, then be judged as half state continuance, therefore repeatedly repeat processing from (S058) to (S063), promptly repeatedly repeating motor 24 switched on makes drive transmission member 640 rotate along the CW direction, thereby makes the action (S064) of vegetable compartment door 6a closure.If repeat stipulated number for example after three these closed action first state detection unit 510 still can not detect closure, for example then be judged to be something and made the vegetable compartment door 6a can not be closed by folder, and then end process.

Then, with reference to the manual control at closing time of accompanying drawing 15 explanations.Figure 15 is the control flow chart that door drive 500 begins during from the door standard-sized sheet.

Carry out initial point detection action (S101) from beginning action (S100).Detect action about this initial point, with identical among above-mentioned Figure 13 from S001 to S003.

Next, control module 51 is surveyed vegetable compartment door 6a becomes half-open position (S102, S104) from standard-sized sheet.Should become half-open detection from standard-sized sheet carries out in the following order.At first, carry out the detection (S102) of full-gear of the vegetable compartment door 6a of the detection of open mode (promptly not being the state of closure state) of the vegetable compartment door 6a of first state detection unit 510 and second state detection unit 520.At this moment, because confirming as vegetable compartment door 6a when detecting two states is full-gear, therefore under this occasion, carry out the detection (S102) of half state (closed condition of second state detection unit 520) of the vegetable compartment door 6a of the detection of open mode (promptly not being the state of closure state) of vegetable compartment door 6a, the refrigerating chamber door 5a of first state detection unit 510 and second state detection unit 520.At this moment, when detecting two states, can confirm that vegetable compartment door 6a moves to half state from full-gear.

Then, when from full-gear when half state moves, make half Stateful Inspection timer T1 begin (S105).Under the situation of half state continuance till half Stateful Inspection timer T1 end (S106, S107), promptly when the condition that begins is set up to motor energising closing motion, make and inform unit 70 rings moving (S108), standby stipulated time, for example 1 second (S109).In this stand-by time, even at (Fig. 2 72) between the door gap 72 or between vegetable compartment door 6a and refrigerator main body 1, sandwich finger, because by confirming that moving the informing of ring can take out finger unit 70, thereby this formation is safe.

In S109, after the standby process stipulated time,, carry out the closing motion (S110) of motor 24 with same shown in from (S058) to (S062) among above-mentioned Figure 14.At this moment, even the user does not make door from the half-open position action at T1 in the time, can prevent that also vegetable compartment door 6a is in half state.

Because refrigerator is as above formation, according to the present invention, by reducing to open the required power of refrigerator drawer door, thereby can open the door wide like a cork.Thus, provide a kind of for example pregnant woman or old man under the state of elbow, gonocampsis difficulty, also can easily open the door of refrigerating chamber 5 or vegetable compartment 6, perhaps from half state of what is called door close and improve the refrigerator of energy-saving effect automatically.

In addition, a kind of door drive that carries out door switch that has can also be provided, and see the position that partially overlaps at least with strengthening part because the height and position of the door opening portion of this drive unit, the portion of closing the door is positioned at from above-mentioned drawer door front, therefore be located at the deposit degree of depth minimizing degree less refrigerator of the interior storage food of case with storing containers.

Also have, refrigerator of the present invention also has following effect, promptly, when hand switch, because the drive unit that door drive of the present invention is located on the refrigerator main body does not contact with the door opening portion of being located at the drawer reveal, the portion of closing the door, therefore user's manual activity or the switch motion phenomenon such as heavy that becomes can not appear hindering when the switch of drawer door, even and just in case break down, do not damage user's ease of use yet.

In addition and since make drawer door unlimitedly be of a size of complete more than 1/4 of size of opening wide, therefore when opening, can look far into the distance vegetable compartment or household freezer inside from peristome, from but suitable.

Also having, be below 1/2 of doorframe depth size total length owing to make the position of strengthening part, so the strain of doorframe reduced than originally.Thereby, since can reduce initial stage when driving the drawer door drive unit, for example from time of drawing back that main body is drawn back magnetic seal spare about the amount of transient deviation and then door self transient vibration is arranged, therefore can reduce because of vibrating caused noise and user's sense of discomfort.

In addition, owing to possess first state detection unit of detection door closed condition and be arranged at by can close the door second state detection unit of half state of the detection door in the scope of action, door switch unit, after first state detection unit and above-mentioned second state cell probe unit all detect open mode, in the action of just closing the door through door drive after the stipulated time, therefore suppose that the user is still pressed from both sides at foreign matters such as fingers and do not take out, by manually will be at closing time, cross the threshold because under half state, can notice banjo splint, take away finger in front of the door thereby can begin to close at driver element.Have again,, therefore, can close naturally in the not drived unit pulling midway of closing the door owing to during half state continuance stipulated time of door, can manually close the door.Even just in case door is not when fully closed, also can be by door drive door close effectively.

Also have,, therefore can the user can know that closing motion begins period, thereby can operate safely owing to after informing informing of unit by buzzer etc., close through certain hour rear drive door.

(embodiment 2)

Below, with reference to Figure 16 and Figure 17 the second embodiment of the present invention is described.Figure 16 is the cross-sectional illustration figure of the major part of the refrigerator in the second embodiment of the invention, and Figure 17 represents the stereogram of the formation of the attaching parts in the second embodiment of the invention.In addition, the formation for identical with the foregoing description 1 marks identical Reference numeral and detailed.

Among the figure, for attaching parts 700, for fixing to the fastening portion 710 of the attaching parts of strengthening part 410 and, can carry out the door opening portion 730 of the attaching parts that the switch ground of drawer door constitutes and the portion 720 of closing the door forms for one or monomer, and the driving force of the drive unit 600 by main body side is carried out the switch ground formation of vegetable compartment door (6a of figure).

And, be provided with projection or hole 751 at the rear portion of these attaching parts 700, with hole or the projection 15b fastening removably be located on the container bottom 15a, thereby, accept for example above-mentioned " from pull the drawer out first power of maximum of door of halted state " even become on above-mentioned attaching parts 700, the door opening portion 730 of above-mentioned attaching parts also is difficult to the formation of the direction skew beyond door opens wide direction.

Also have, in Figure 17, though above-mentioned jut is the rib shape, the present invention is not limited to this, for example also can make cylindricality or tip shape.

Because refrigerator is for as above constituting, even therefore the second embodiment of the present invention can provide a kind of attaching parts 700 to accept the driving force of the drive unit 600 of main body side, also can reduce the skew beyond the door switch direction, thereby can successfully carry out the refrigerator of the switch of vegetable compartment door (6a of figure).

In addition,, therefore become when cleaning container 15, can pull down the formation of carrying out water Xian etc. easily because above-mentioned fastening portion can pull down.

Also have, if above-mentioned jut master circle, above-mentioned hole is a circular hole, then is easy to make processing, thereby becomes the formation favourable to manufacturing cost.

(embodiment 3)

Below, with reference to Figure 18 and Figure 19 the third embodiment of the present invention is described.Figure 18 is the vertical view of the formation of the drawer door drive unit of expression in the third embodiment of the invention, and Figure 19 is the stereogram of formation of the drive unit of the main body side in the expression third embodiment of the invention.In addition, the formation for identical with the foregoing description 1 marks identical Reference numeral and detailed.

At first, in Figure 18, the 400th, be located at above-mentioned drawer door (the vegetable compartment door 6a of Fig. 2) about doorframe, possess to be located at and connect between this left and right sides doorframe 400 and form the strengthening part 410 that is seen as the U font from above-mentioned drawer door front, and on this strengthening part 410, be provided with a plurality of attaching parts 700a described later, 700b, these attaching parts 700a, 700b accepts (to be equivalent to 600 of Fig. 2 from the drive unit 600a of the main body side that is installed on main body side, the 600a of Figure 19) the drive transmission member 640a on, the driving force of 640b is carried out above-mentioned drawer door switch automatically thereby constitute.

On the drive unit 600a of aforementioned body side, axle is supported with drive transmission member 640a, 640b, this drive transmission member 640a, 640b are driving shaft 620a, the 620b rotation rotating drive body freely that makes to rotary output axis, on this drive transmission member 640a, 640b, be provided with and carry out being disposed at of above-mentioned drawer door unlimitedly and make locational a plurality of press section 660a, the 660b of opening the door that change gradually apart from the distance of center of rotation towards rotation direction.

In addition, on this drive transmission member 640a, 640b, can carry out above-mentioned drawer door close into be provided with close the door press section 670a, 670b.

In addition, for above-mentioned attaching parts 700a, 700b, be one or form discretely for fixing to door opening portion 730a, the 730b of the 710a of fastening portion, the 710b of the attaching parts on the above-mentioned strengthening part 410 and above-mentioned attaching parts, the 720a of the portion of closing the door, the 720b of attaching parts.

And, on door opening portion 730a, the 730b of these attaching parts, a plurality of stair-stepping press surfaces are set, these a plurality of press surfaces are disposed at on the corresponding position of a plurality of open the door press section 660a, the 660b of the configuration on above-mentioned drive transmission member 640a, the 640b, follow the usual practice as arrow C CWa, the rotation of CCWb direction by the rotational motion of above-mentioned drive transmission member 640a, 640b, be transformed into the door opening portion 730a of above-mentioned attaching parts, the rectilinear motion of 7300b, thus, can carry out opening wide of above-mentioned drawer door.

Also have, on the 720a of the portion of closing the door, the 720b of above-mentioned attaching parts, with be located at above-mentioned drive transmission member 640a, 6400b on the corresponding position of close the door press section 670a, 670b on, be provided with close the door press surface 722a, 722b, thereby the rotational motion that makes above-mentioned drive transmission member 640a, 6400b follow the usual practice as when opening wide above-mentioned drawer door opposite towards arrow C Wa, CWb direction rotate, and be transformed into the 720a of the portion of closing the door of above-mentioned attaching parts, the rectilinear motion of 720b, carry out closing of above-mentioned drawer door thus.In other words, to close the door press section 670a, 670b is located on drive transmission member 640a, the 640b, this close the door press section 670a, 670b can with when closing this door of refrigerator, close drawer door under the inadequate state (half-open door state) close into, be transformed into the rectilinear motion of above-mentioned attaching parts 700a, 700b by the rotational motion of this is closed the door press section 670a, 670b, can carry out the pass of the drawer door of above-mentioned half-open door state and go into.

Then, describe by Figure 19.In addition, Figure 19 is an embodiment of driving who carries out above-mentioned drive transmission member 640a, the 640b of Figure 18 with a motor.

Among the figure, be provided with motor pinion 25a on the turning cylinder of motor 24a, the output of this motor 24a, the formation of motor pinion are set drive system that can drive the diagram left side simultaneously and the drive system 25a that illustrates the right side for.

For example, as the drive system in diagram left side, above-mentioned motor pinion 25a and idle pulley 26a mesh and slow down.Idle pulley 26a and smaller idler wheel 27a unitary rotation, smaller idler wheel 27a and idle pulley 28a engagement.Idle pulley 28a and smaller idler wheel 29a unitary rotation, smaller idler wheel 29a and driven wheel 30a mesh and slow down.Driving shaft 620a is connected with driven wheel 30a, constitutes by this transmission, and the velocity of rotation of motor 24a for example is decelerated to about 1/100, and the drive transmission member 640a that is located on the driving shaft 620a is rotated.

And as the drive system on diagram right side, above-mentioned motor pinion 25a and idle pulley 26a mesh and slow down.Idle pulley 26a and smaller idler wheel 27a unitary rotation ground constitute, and the rotation direction of the drive transmission member 640b on the rotation direction of the drive transmission member 640a in above-mentioned diagram left side and this diagram right side is provided with facing one another.In addition, above-mentioned middle smaller idler wheel 27b and idle pulley 28b engagement., idle pulley 28b and smaller idler wheel 29b unitary rotation, smaller idler wheel 29b and driven wheel 60 engagements, gear 60 slows down with driven wheel 30b engagement.Driving shaft 620b is connected with driven wheel 30b, constitute by this transmission, the velocity of rotation of motor 24a for example is decelerated to about 1/100, and makes the drive transmission member 640b that is located on the driving shaft 620b along rotating with the direction of the direction of rotation of drive transmission member 640a.

Also having, also can be as above-mentioned by Fig. 7, respectively by the above-mentioned drive transmission member 640a of a Motor Drive Figure 18 and the mode of 640b.In this case, owing to can reduce the output of each motor, life-span that therefore can extension fixture.

Because refrigerator as above constitutes, therefore for the third embodiment of the present invention, because the mechanism of the switch of a plurality of driving vegetable compartment doors (6a of Fig. 2) can be set, therefore can make by the door installed surface 401a that goes out, closes left and right sides doorframe, the power of 401b, in other words, can make the left and right sides power of switch drawer door roughly the same.

Therefore, even effect is the sort of when the absorption of drawing back magnetic seal spare is arranged on drawer door, " from pull the drawer out first power of maximum of door of halted state " load, perhaps, even the food weight that stores in the storing containers that above-mentioned doorframe 400 supports is different on about this storing containers, above-mentioned " from pull the drawer out first power of maximum of door of halted state " about on also different, since can be roughly side by side open wide or closed this drawer door about, therefore can provide a kind of refrigerator that can carry out the drawer door switch smoothly.

In addition, because drive transmission member 640a and 640b about the enough motor 24a drivings of energy, thereby a kind of formation favourable to manufacturing cost can be provided.

(embodiment 4)

Below, with reference to Figure 20～Figure 22 the fourth embodiment of the present invention is described.Figure 20 is the cross-sectional illustration figure of the major part of the refrigerator in the fourth embodiment of the invention, Figure 21 is the cross-sectional illustration figure along the major part of B-B line among Figure 20, and Figure 22 is that expression is observed the stereogram of the formation of the drawer container the fourth embodiment of the invention from the inside.

In addition, the formation for identical with the foregoing description 1 and embodiment 3 marks identical Reference numeral and detailed.

Also have, present embodiment is characterised in that, the function one of the 720a of the portion of closing the door, the 720b of the function of door opening portion 730a, the 730b of the attaching parts 700a of the foregoing description 3, the attaching parts of 700b and attaching parts or be located at the bottom surface of drawer container 16 described later discretely.

In Figure 20 to Figure 22, vegetable compartment door 6a is by the roller 421 on the case 1b in being located at and be located at roller 422 on the doorframe 420, pulls out supported freely by the left and right sides doorframe 420 that is provided with movably.And, possess and be arranged between the above-mentioned left and right sides doorframe 420 and together pull out freely drawer container 16 with above-mentioned vegetable compartment door 6a.

In the bottom surface of above-mentioned drawer container 16 one or be provided with door opening portion 730c, the 730d of the attaching parts of container discretely, the door opening portion 730c of container, 730d are by accepting to carry out opening wide of above-mentioned drawer door automatically from being located at the drive transmission member 640a on the drive unit 600a of the main body side that main body side is installed, the driving force of 640b.

In addition, in the bottom surface of above-mentioned drawer container 16 one or be provided with the 720c of the portion of closing the door, the 720d of the attaching parts of container discretely, the 720c of the portion of closing the door, the 720d of container, carries out the pass of above-mentioned drawer door automatically and goes into from being located at the drive transmission member 640a on the drive unit 600a of the main body side that main body side is installed, the driving force of 640b by acceptance.

Also have, in the above-described configuration, if for example constitute by the intensity that a plurality of ribs 16b improve this drawer container 16 self is set on the bottom surface of above-mentioned drawer container 16, the doorframe flange 420a of while chimeric left and right sides doorframe 420 on the 16c of fastening portion of the flange of these drawer 16 containers, then, therefore can successfully carry out the switch of drawer door because acceptance is stablized on intensity from switch portion 730c, the 730d of the container attaching parts of the driving force of above-mentioned drive transmission member 640a, 640b, the 720c of the portion of closing the door, the 720d of container.

Have again, the method of being located at the bottom surface of drawer container 16 as monomer can be, for example bear door opening portion 730c, the 730d of container of big load and the 720c of the portion of closing the door, the 720d of container, these moulding product for example are fixed in bottom with the drawer container 16 self of the styrene resin of good forming ability or acrylic resin formation by adhesion or folder thing moulding etc. with mechanical strength height, a Du Lalong resin moulding that lubricity is good.

Because refrigerator as above constitutes, therefore fourth embodiment of the invention can provide a kind of and is used to open the required power of refrigerator drawer door and can be by the electronic door of opening like a cork, perhaps by automatically can improve the refrigerator of energy-saving effect by electronic door close from half state of what is called by reduction.In addition, because the strengthening part 410 of explanation among the embodiment 3, the fastening portion 710 of attaching parts can be set, therefore can provide a kind of refrigerator favourable on manufacturing cost.

(embodiment 5)

Below, with reference to Figure 23 and Figure 24 the fifth embodiment of the present invention is described.Figure 23 is the cross-sectional illustration figure of the major part of the refrigerator in the fifth embodiment of the invention, and Figure 24 is that expression is observed the stereogram of the formation of the drawer container the fifth embodiment of the invention from the inside.In addition, the formation for identical with the foregoing description 4 marks identical Reference numeral and detailed.

In Figure 23～Figure 24,420 for be located at vegetable compartment door 6a (the vegetable compartment door 6a that is equivalent to Fig. 2) about doorframe, possess to connect and see the strengthening part 411 that forms the setting of U font ground between this left and right sides doorframe 420 and from above-mentioned drawer door front.And drawer container 17 mountings are on above-mentioned doorframe 420 and strengthening part 411, one or be formed with attaching parts 700e described later, 700f discretely on the 17a of the bottom of this drawer container 17.

And, on above-mentioned attaching parts 700e, 700f, have the 710e of fastening portion, 710f, door opening portion 730e, the 730f of attaching parts described later and the 720e of the portion of closing the door, the 720f of attaching parts of the attaching parts that can fastening on above-mentioned strengthening part 411, constitute.

And the setting height(from bottom) position of the 720e of the portion of closing the door, the 720f of the door opening portion 730e of above-mentioned attaching parts, 730f and attaching parts is positioned at from above-mentioned vegetable compartment door 6a front sees the position that partially overlaps at least with above-mentioned strengthening part 411.In other words, exactly door opening portion 730e, the 730f of attaching parts and the 720e of the portion of closing the door, the 720f of attaching parts are set for than greatly zero with the size h52 that overlaps of above-mentioned strengthening part 411, make it possible to reduce the size h53 that the degree of depth reduces that deposits of drawer container 17 shown in Figure 23 as far as possible.

Also have, constitute by above-mentioned coincidence size h52 being set also littler than lower surface and the gap size h51 between drive transmission member 640a described later, the 640b of the bottom 17a of drawer container, then when pulling out vegetable compartment door 6a, above-mentioned strengthening part 411 and not above-mentioned drive transmission member 640a, 640b butt.

And the 710e of fastening portion, the 710f of attaching parts have: pedestal part 711e, the 711f of be located by connecting parts 700e, 700f and strengthening part 411; With make above-mentioned attaching parts 700e, 700f be embedded in clamping part 712e, 712f on the above-mentioned strengthening part 411 removably.

And, constituting above-mentioned attaching parts 700e, 700f accepts (to be equivalent to 600 of Fig. 2 from being located on the drive unit 600a of the main body side that main body side is installed, the 600a of Figure 23) driving force of the drive transmission member 640a of An Zhuaning, 640b, thus carry out the switch of above-mentioned vegetable compartment door 6a automatically.

Also have, the door opening portion 730e that constitutes in these attaching parts, on the 730f, a plurality of stair-stepping press surfaces are set (for example, eight grades the face of being equivalent to from the 8th press surface of 731 first press surface to 738 of Fig. 4), this press surface for be disposed at at above-mentioned drive transmission member 640a, on the corresponding position, a plurality of press sections 660 of opening the door of the configuration on the 640b (be equivalent to Fig. 4 660), by making above-mentioned drive transmission member 640a, the rotational motion of 640b, be transformed into above-mentioned attaching parts 700e, the rectilinear motion of 700f, thus, carry out above-mentioned vegetable compartment door 6a) open wide.

Also have, constitute on the 720e of the portion of closing the door, the 720f of above-mentioned attaching parts, with be located at above-mentioned drive transmission member 640a, 640b on corresponding position, the press section 670 of closing the door (be equivalent to Fig. 4 670) on, be provided with close the door press surface 722e, 722f and (be equivalent to 733 of Fig. 4, the 722e of Figure 24,722f), thereby the rotational motion that makes above-mentioned drive transmission member 640a, 640b is followed the usual practice as opposite to rotation when opening wide above-mentioned drawer door, and be transformed into the rectilinear motion of above-mentioned attaching parts 700e, 700f, carry out the pass of above-mentioned vegetable compartment door 6a thus and go into.

In addition, in the above-described configuration, on the bottom of drawer container 17a or container side wall, form with the chimeric strengthening part of strengthening part 411 slot part 17b is installed, if the chimeric amount of slot part 17b and strengthening part 411 is installed by suitably setting this strengthening part, and suitably set above-mentioned clamping part 712e, the chimeric amount of 712f and strengthening part 411, constitute by above-mentioned strengthening part 411 dismantled and assembled drawer container 17 and attaching parts 700e, 700f, then because when cleaning drawer container 17, carry out water Xian etc. by pulling down, therefore can provide a kind of spatter property good refrigerator.

Also have, as shown in figure 23, if the height setting of end face 714e, the 714f of the inner surface height of the bottom 17a of drawer container and attaching parts is become roughly the same, be general plane then, therefore do not constitute obstruction for spatter property owing to attaching parts 700e, 700f can make the bottom surface of the drawer container 17 of one or monomer formation.

Because refrigerator as above constitutes, therefore fifth embodiment of the invention can provide a kind of and is used to open the required power of refrigerator drawer door and can be by the electronic door of opening like a cork, perhaps by automatically can improve the refrigerator of energy-saving effect by electronic door close from half state of what is called by reduction.

In addition, owing to the mechanism of the switch of a plurality of driving drawer doors is set at container bottom, so can make the left and right sides power of switch drawer door roughly the same.Therefore, even effect is the sort of when the absorption of drawing back magnetic seal spare is arranged on drawer door, " from pull the drawer out first power of maximum of door of halted state " load, perhaps, even the food weight that stores in the storing containers that above-mentioned doorframe 420 supports is different on about this storing containers, above-mentioned " from pull the drawer out first power of maximum of door of halted state " about on also different, since can be roughly side by side open wide or closed this drawer door about, therefore can provide a kind of refrigerator that can carry out the drawer door switch smoothly.

In addition, a kind of door drive that carries out door switch that has can also be provided, and see the position that partially overlaps at least with strengthening part because the height and position of the door opening portion of this drive unit, the portion of closing the door is positioned at from above-mentioned drawer door front, therefore be located at the deposit degree of depth minimizing degree less refrigerator of the interior storage food of case with storing containers.

(other are suitable for)

In the present embodiment, be located at example on the drawer door of refrigerating chamber 5 or vegetable compartment 6 though enumerated door drive 500, the present invention is not limited to present embodiment certainly, even be located on the rotary type door of refrigerating chamber 2, also can obtain same effect.

Also have, in the present embodiment, the formation that possesses door drive on refrigerator has been described, but the present invention is not limited to refrigerator, for example also can be applicable to the file cabinet of taking care of files classes, in face of pull out and in the drawer type equipment such as the combined dishwashing detergent drying machine of tank that use, under this occasion, obviously also can obtain identical effect is described with the present invention.

Claims (8)

1. refrigerator possesses the door drive of unlimited door of refrigerator, it is characterized in that,

Above-mentioned door drive has: rotatable parts are provided with the rotating drive unit that possesses and rotate and be positioned at along with the distance apart from center of rotation becomes locational a plurality of power transfering parts far away to advancing with rotation direction reversed by the rotation of above-mentioned rotating drive unit on the refrigerator main body; Control module is controlled above-mentioned rotating drive unit; And attaching parts, be located at above-mentioned reveal, be transformed into rectilinear motion from above-mentioned power transfering part transferring power and with the rotational motion of above-mentioned rotatable parts,

Above-mentioned power transfering part has planar portions, and the in-plane of above-mentioned planar portions forms roughly center of rotation direction,

Above-mentioned attaching parts have a plurality of step-like stage portion, and this stage portion and above-mentioned planar portions transferring power when roughly face contacts are opened wide above-mentioned door thus.

2. refrigerator according to claim 1 is characterized in that,

Above-mentioned door be a drawer type door, this drawer door have, be located at this about doorframe and stride across about this doorframe and the parts that form have above-mentioned attaching parts on these parts.

3. refrigerator according to claim 2 is characterized in that,

This doorframe about above-mentioned striding across and the parts that form are seen from above-mentioned door front and are formed the U font.

4. refrigerator according to claim 1 is characterized in that,

Above-mentioned door be a drawer type door, this drawer door have door be located at this about doorframe, upload at this doorframe and to be equipped with the drawer container, with above-mentioned drawer container one or form above-mentioned attaching parts discretely.

5. refrigerator possesses the drawer door that direction is forwards, backwards pulled out, it is characterized in that,

Have: rotatable parts are provided with on above-mentioned refrigerator main body fixing rotating drive unit and rotate and be positioned at the locational a plurality of power transfering parts that change gradually apart from the distance of center of rotation towards rotation direction by the rotation of above-mentioned rotating drive unit; Control module is controlled above-mentioned rotating drive unit; And attaching parts, be transformed into rectilinear motion from above-mentioned power transfering part transferring power and with the rotational motion of above-mentioned rotatable parts,

Above-mentioned drawer type door has door, be located at this about doorframe and stride across about this doorframe and the parts that form, on these parts, be provided with above-mentioned attaching parts, make from the part of above-mentioned power transfering part transferring power to be positioned at than the periphery of above-mentioned parts more in the outer part.

6. refrigerator according to claim 5 is characterized in that,

This doorframe about above-mentioned striding across and the parts that form are seen from above-mentioned door front and are formed the U font.

7. refrigerator according to claim 5 is characterized in that,

This drawer door have door and be located at this about doorframe, upload at this doorframe and to be equipped with the drawer container, with above-mentioned drawer container one or form above-mentioned attaching parts discretely.

8. refrigerator according to claim 5 is characterized in that,

By making above-mentioned rotating drive unit, carry out the pass of above-mentioned drawer door and go into along rotating in the opposite direction with the above-mentioned drawer door side of opening.

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