CN202057149U - Drawer component and refrigerator adopting same - Google Patents

Abstract

The utility model discloses a drawer component which comprises a drawer, a base and an X-shaped lifting frame. The base is arranged under the drawer and the upper end of the base is opened, the X-shaped lifting frame can vertically retract and can be positioned after retraction, the X-shaped lifting frame is arranged in the base and is controlled to retract by a lifting motor, and the drawer is supported on the X-shaped lifting frame for being lifted or falling down. According to the drawer component provided by the embodiment of the utility model, the lifting motor controls the X-shaped lifting frame to lift the drawer and the drawer can be locked after lifting, so that the lifting is automatic, the safety is high, the structure is delicate, and the cost is lower. The utility model also discloses a refrigerator adopting the drawer component; after the drawer component is arranged, the refrigerating chamber drawer can be lifted to a preset height when people need to take food, and people can get the food without stoop or squat, so that the use is convenient and the motion amplitude of people is reduced.

Description

A kind of drawer appliance and refrigerator with it

Technical field

The utility model relates to art of refrigeration units, especially relates to a kind of drawer appliance and the refrigerator with it.

Background technology

High-end refrigerator adopts the drawer type design mostly, it is convenient to pick and place food, the useful space is big, but undermost drawer has problems in the use, mainly be that drawer is too low, must significantly bend over or squat down when need opening drawer door, the food that generally is placed in the drawer all is heavier, bends over or squats down and cause the damage of client's waist muscle when lifting weight easily.

In addition, in the conventional refrigerator, general requirement to the drawer stroke, after needing to guarantee that drawer is extracted out fully, drawer can conveniently take out.The stroke of drawer is guaranteed that by slide rail slide rail is long more, and then stroke is long more, and the installation of long slide rail is a problem for the inner space of refrigerator.

In the general technology scheme, the gear of drawer left and right sides respectively has only one at present, and synchronizing bar is between two gears, and the gear of left and right sides is connected with the two ends of synchronizing bar with the tooth bar engagement and the while of both sides respectively, and the rear of tooth bar is the air channel.If will strengthen the slide rail stroke, the slide rail lengthening, according to the technical scheme in the conventional refrigerator, the problem that then exists synchronizing bar and air channel to interfere.Yet the air channel can not be therefrom separated, otherwise can have a strong impact on wind path circulation, so add long track in the conventional refrigerator and be difficult to realize with the method for lengthening drawer stroke.

The utility model content

The utility model is intended to solve at least one of technical problem that exists in the prior art.

For this reason, a purpose of the present utility model is to propose a kind of drawer appliance, and the drawer in the described drawer appliance can rise or descend automatically, and lockable position after the lifting.

Another purpose of the present utility model is to propose a kind of refrigerator with above-mentioned drawer appliance.

A kind of drawer appliance according to the utility model first aspect embodiment comprises: drawer; Base, described base are located at the below and the described base upper end of described drawer and open wide; Can stretch up and down and the orientable X-shaped crane in flexible back, described X-shaped crane is located in the described base and by lifting motor control and stretches, and described drawer is supported on the described X-shaped crane to be held up or to fall.

According to the drawer appliance of the utility model embodiment, drawer is carried out lockable position after lifting and the lifting, lifting is automatic by lifting motor control X-shaped crane, and security is higher, and delicate structure and cost are lower.

In addition, also have following additional technical feature according to drawer appliance of the present utility model:

Described X-shaped crane comprises: parallel to each other and isolated two upper left connecting rods along fore-and-aft direction; Parallel to each other and isolated two lower-left connecting rods along fore-and-aft direction, the upper end of described lower-left connecting rod is hinged by the lower end of left synchronising (connecting) rod and corresponding upper left connecting rod respectively, and the lower end of described lower-left connecting rod is connected on the described base, and wherein said left synchronising (connecting) rod is provided with the left-hand thread hole perpendicular to its axis; Parallel to each other and isolated two upper right connecting rods along fore-and-aft direction; Parallel to each other and isolated two bottom right connecting rods along fore-and-aft direction, the upper end of described bottom right connecting rod is hinged by the lower end of right synchronising (connecting) rod and corresponding upper right connecting rod respectively, the lower end of described bottom right connecting rod is connected on the described base, wherein said right synchronising (connecting) rod is provided with the right-hand thread hole perpendicular to its axis, and the hand of spiral in described right-hand thread hole and described left-hand thread hole is opposite; And screw mandrel, the two ends of described screw mandrel are connected with the right-hand thread hole with described left-hand thread hole respectively, and at least one end of described screw mandrel links to each other with the output shaft of lifting motor.

Thus, when screw mandrel drive to be rotated by lifting motor, left synchronising (connecting) rod and right synchronising (connecting) rod be simultaneously to two side shiftings or relatively move simultaneously, so that X-shaped crane bulk deformation is protruded upward or the effect of retraction downwards to finish.

Described drawer appliance further comprises drawer tray, and described drawer tray is fixedly supported on the upper end of described two upper left connecting rods and the upper end of described two upper right connecting rods, and described drawer removably is placed on the described drawer tray.

Described base comprises base plate, left plate and right plate, and the upper surface of wherein said base plate is provided with four connecting holes, and the lower end of described two lower-left connecting rods and two bottom right connecting rods is connected to described connecting hole by pivot pin respectively.

Thus, by limiting the lower end of two lower-left connecting rods and two bottom right connecting rods, can limit the scope of activities of X-shaped crane.

Be respectively equipped with the reinforcement that many above-below directions extend on wherein said left plate and the right plate, to strengthen the intensity of drawer appliance, described drawer appliance further comprises two motor cabinet assemblies, described motor cabinet assembly can be located at respectively between two adjacent reinforcements on described left plate and the right plate up or down, and described lifting motor is installed on one of them described motor cabinet assembly with along with moving up and down.Described motor cabinet assembly is used for support lifting motor and screw mandrel.

Particularly, each described motor cabinet assembly comprises: motor cabinet body, described motor cabinet body are suitable for being connected with described lifting motor; The left and right sides that at least two rollers, described at least two rollers are distributed in described motor cabinet body symmetrically moves up and down between described two adjacent reinforcements to support described motor cabinet body.

Alternatively, described roller is four.Promptly two rollers are set respectively, stably between two adjacent reinforcements, to move up and down in the left and right sides of motor cabinet body.

Alternatively, the described motor cabinet assembly that described lifting motor is installed is provided with through hole, is provided with rotating shaft in the described through hole and is connected with described lifting motor.

Thus, unexpected outage in the process of rising or falling at drawer can be inserted in the through hole with screwdriver or small crank, by rotation screw cutter or small crank, can directly drive lifting motor.

Further alternatively, be provided with the slotted hole that extends from top to bottom corresponding to the described left plate of lifting motor or in the right plate one of them, described slotted hole is corresponding in the position of through hole on fore-and-aft direction of position on the fore-and-aft direction and described motor cabinet assembly.

By slotted hole is set, make in the process that the motor cabinet assembly moves up and down, be any position of drawer lifting, through hole can expose from slotted hole, no matter at any time accident power-off can directly insert by screwdriver or small crank and manually directly drive the lifting motor rotation in the through hole thus.

A kind of refrigerator according to the utility model second aspect embodiment, comprise refrigerating chamber and refrigerating chamber, described refrigerating chamber comprises: freezer box, be formed with the gap that has preset distance between the left and right sides of air channel and described air channel and described freezer box respectively in the described freezer box, described freezer box front side is opened wide; Drawer door, described drawer door opens and closes described freezer box by the motion of pull assembly; According to the drawer appliance of describing among the utility model first aspect embodiment, described drawer appliance is installed on the described pull assembly and with described pull assembly and moves; And Control Component, described Control Component is used for controlling the lifting of the switch and the described drawer appliance drawer of described drawer door.

Refrigerator according to the utility model embodiment, by drawer appliance is set, when need picking and placeing food, the people drawer of the refrigerating chamber of food container can be risen to the preset distance place, the people is not bent over or squats down to pick and place food, easy to use, reduced people's motion amplitude.

Alternatively, has gap between the front side of described drawer and the described drawer tray and between the bottom of described drawer and the described drawer tray respectively greater than 15mm.The direction of cold air flow is restrained thus, makes it can't directly flow to pull assembly and the interior moving component of drawer appliance, prevents its frozen.

Described pull assembly comprises: first and second tooth bars, described first and second tooth bars extend along fore-and-aft direction respectively, and described first and second tooth bars are installed in respectively on the interior left and right sides sidewall of described freezer box; First and second slide rails that extend along fore-and-aft direction respectively, each in described first and second slide rails include outer rail and with respect to described outer rail movably in rail; First and second gear trains, described first and second gear trains correspondingly are installed in respectively on the interior rail of described first and second slide rails, in described first and second gear trains each comprises that at least two gears mesh successively, and an engagement in the last gear of the rearmost end in described at least two gears and first and second tooth bars of respective side so that described last gear on described tooth bar motion and described in rail moving synchronously with respect to described outer rail; Synchronizing bar, the two ends of described synchronizing bar are connected with front gear in first and second gear trains respectively so that the synchronized movement between described first and second gear trains, and wherein front gear is positioned at the described first gear front side; With clutch equipment, described clutch equipment links to each other with described synchronizing bar and moves along described first and second tooth bars synchronously to drive described first and second gear trains.

Thus, refrigerator according to the utility model embodiment, its pull assembly comprises the synchromesh gear group of at least two gears by employing, and with tooth bar meshed gears and the gear that is connected with synchronizing bar is not same, the movement travel that can effectively extend has solved much the defective of the various inconveniences that cause inadequately owing to movement travel.

Described clutch equipment comprises: starter motor; And clutch, described clutch comprises: housing, be limited with cavity in the described housing, and the output of described starter motor stretches in the described cavity; Latch, first end of described latch are fixed on first end wall of described cavity, and described first end wall is relative with the output of described starter motor; Sliding shoe is provided with magnet in the described sliding shoe, and the edge face structure one-tenth of first end of described sliding shoe is suitable with the end face of second end of described latch, and the edge face structure one-tenth of second end of described sliding shoe is suitable with the end face of the output of described starter motor; With the rotating shaft of the coaxial setting of output shaft of starter motor, wherein said sliding shoe rotates synchronously along axially being set in slidably on the described rotating shaft and with described rotating shaft of described rotating shaft; And first and second electromagnet, described first and second electromagnet are located at first end of described cavity and second end back that is used to switch on respectively and attract described sliding shoe moving axially along described rotating shaft.

Refrigerator according to the utility model embodiment, its clutch equipment is by having the clutch of latch functions, can with the transmission of power of starter motor to other equipment of clutch device external so that external equipment rotate, the motion of perhaps latched position and rotating shaft can not be rotated, and then locking external equipment.In addition, clutch equipment also has good tolerance under overload condition.

Described rotating shaft comprises: glissile segment, and described glissile segment is connected with described sliding shoe spline; And gear segment, described gear segment links to each other with first end of described glissile segment and stretches out hull outside.

Wherein, the end face of the output of described starter motor forms the face gear structure.Thus correspondingly, second end face of sliding shoe also forms the face gear structure to cooperate with the end face of the output of starter motor and rotation jointly stably.

Wherein, described latch is configured to along the circumferential annular of housing, all can carry out locking can guarantee sliding shoe when rotating to any circumferential position along with rotating shaft, and the end face of second end of described latch forms the conical surface that the surface has lines.By above setting, can make the frictional force between sliding shoe and the latch enough lock rotating shaft greatly.

Wherein, first and second electromagnet circumferentially are provided with along housing respectively.

Alternatively, each in first and second electromagnet includes a plurality of sub-magnet, and separate the turning up the soil of described a plurality of sub-magnet circumferentially is provided with along housing.

Described starter motor is stepper motor or the common electric machine that has decelerator.

Described refrigerator further comprises driving gear set, and described synchronizing bar links to each other with described clutch equipment to transmit moment of torsion by described driving gear set.

Alternatively, described driving gear set comprises: first travelling gear, described first travelling gear are located on the outer gear segment of the described housing of stretching out of described clutch equipment; With second travelling gear, described second travelling gear and described first travelling gear mesh and are located on the described synchronizing bar.

Further alternatively, the number of teeth of described second travelling gear is greater than the number of teeth of first travelling gear, with the torque that reduces to come from starter motor transmission

Described refrigerator further comprises: first and second drawer frames, the front end of described first and second drawer frames is connected to described drawer door respectively placing described drawer appliance between described first and second drawer frames, and described first and second drawer frames are separately fixed on the interior rail of described first and second slide rails and slide with respect to outer rail with the interior rail with described first and second slide rails; With first and second slide track seats, described first and second slide track seats are located on the left and right sides sidewall in the described casing respectively and described first and second tooth bars are installed in respectively in described first and second slide track seats, and the rear end of described first and second slide track seats extend into respectively in the gap between described air channel and the freezer box.

Described refrigerator further comprises the starter motor support, and described starter motor props up and is erected at described first and second drawer frames so that described starter motor to be installed.

Control Component comprises: first button, described first button are located on the chamber door of described refrigerating chamber and open described drawer door and rise described drawer with control; Second button, described second button are located on the chamber door of described refrigerating chamber and close described drawer door and fall described drawer with control; And control module, described control module is controlled described first button and second button.

Refrigerator according to the utility model embodiment, utilize gap between air channel and the wall box to be used for installing first slide rail and second slide rail of lengthening, utilization comprises that the gear train of at least two gears cooperates, the position of relative first slide rail of synchronizing bar and second slide rail is moved on to the slide rail stage casing by the slide rail end, make synchronizing bar can not cause interference to the structure in air channel, and then solved a lot because the slide rail stroke is not enough, the defective that causes the drawer of refrigerating chamber can not or be inconvenient to take out.In addition, when drawer door open put in place after, latch functions is opened, locking drawer door current location.After drawer door is opened, utilize the X-shaped crane of drawer bottom, drive the distortion of X-shaped crane, rising drawer by lifting motor.Drawer door is opened and the lifting full automation, client only need click first button and second button, needn't bend over or squat down fully, can pick and place the food in the drawer, in drawer, also can open easily under the situation of placement weight like this, increase reliability and security when using by stretching out of pull assembly.And the outage that meets accident in the refrigerator use also has the mechanical backup interface according to the refrigerator of the utility model embodiment, can manual reversion to original state, do not influence manual open and close drawer door, do not influence picking and placeing of the interior food of drawer.

Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.

Description of drawings

Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:

Fig. 1 is the schematic diagram according to the drawer appliance of the utility model embodiment;

Fig. 2 a is the explosive view of the drawer appliance shown in Fig. 1;

Fig. 2 b is the schematic diagram of the motor cabinet assembly of the drawer appliance shown in Fig. 1;

Fig. 3 is the schematic diagram when drawer is positioned at extreme lower position in the drawer appliance shown in Fig. 1;

Fig. 4 is the motion schematic diagram of the drawer of the drawer appliance shown in Fig. 1, wherein X-shaped crane distortion;

Fig. 5 is the schematic diagram of the drawer of the drawer appliance shown in Fig. 1 when being positioned at the extreme higher position;

Fig. 6 is the schematic diagram according to another angle of the drawer appliance of the utility model embodiment;

Fig. 7 is the enlarged diagram of M portion among Fig. 6;

Fig. 8 is the schematic diagram according to the pull assembly of the refrigerator of the utility model embodiment;

Fig. 9 is the exploded perspective view of the pull assembly among Fig. 8, has wherein omitted clutch equipment;

Figure 10 is the partial sectional view according to the clutch equipment of the utility model embodiment;

Figure 11 is an A-A cutaway view among Figure 10;

Figure 12 is the actuating schematic diagram of the clutch equipment shown in Figure 10, and wherein the output of sliding shoe and starter motor is adaptive;

Figure 13 is the braking schematic diagram of the clutch equipment shown in Figure 10, and wherein sliding shoe and latch are adaptive;

Figure 14 is the casing schematic diagram according to the refrigerator of the utility model embodiment;

Figure 15 is according to the pull assembly in the refrigerator of the utility model embodiment and the scheme of installation in air channel;

Figure 16 is the vertical view of Figure 15;

Figure 17 is the schematic diagram according to the refrigerator of the utility model embodiment;

Figure 18 is the scheme of installation of the pull assembly of the refrigerator shown in Figure 17;

Figure 19 is the enlarged diagram that Figure 18 centre circle shows B portion;

Figure 20 is the stereogram of the refrigerator shown in Figure 17; With

Figure 21 is that the refrigerator apoplexy shown in Figure 17 flows to schematic diagram.

The specific embodiment

Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the utility model, and can not be interpreted as restriction of the present utility model.

In description of the present utility model, it will be appreciated that, close the orientation of indications such as term " " center ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " top ", " end " " interior ", " outward " or position is based on orientation shown in the drawings or position relation; only be the utility model and simplify and describe for convenience of description; rather than the device of indication or hint indication or element must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.

In description of the present utility model, need to prove that unless clear and definite regulation and qualification are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model.

Below with reference to the drawer appliance 1 of Fig. 1-Fig. 7 description according to the utility model first aspect embodiment.

Drawer appliance 1 according to the utility model embodiment comprises: drawer 11, base 12 and X-shaped crane 13, as shown in Fig. 1 and Fig. 2, base 12 is located at the below and base 12 upper ends of drawer 11 and opens wide.X-shaped crane 13 can be located after can stretching up and down and stretching, and X-shaped crane 13 is located in the base 12 and by lifting motor 14 controls and stretches, and drawer 11 is supported on the X-shaped crane 13 to be held up or to fall.

Alternatively, lifting motor 14 can be stepper motor, stepper motor can controlled reverse rotation so that the torque of different directions to be provided.Certainly the utility model is not limited to this, lifting motor 14 can also for other types can reverse rotation motor, for example have the common electric machine of decelerator.

According to the drawer appliance of the utility model embodiment, drawer 11 is carried out lockable position after lifting and the lifting, lifting is automatic by lifting motor 14 control X-shaped cranes 13, and security is higher, and delicate structure and cost are lower.

According to an embodiment of the present utility model, X-shaped crane 13 comprises: along fore-and-aft direction parallel to each other and isolated two upper left connecting rod 131a, along fore-and-aft direction parallel to each other and isolated two lower-left connecting rod 132a, along fore-and-aft direction parallel to each other and isolated two upper right connecting rod 131b, parallel to each other and isolated two bottom right connecting rod 132b and screw mandrel 134 along fore-and-aft direction.

Shown in Fig. 1 and Fig. 2 a, the upper end of lower-left connecting rod 132a is hinged by the lower end of left synchronising (connecting) rod 133a and corresponding upper left connecting rod 131a respectively, and the lower end of lower-left connecting rod 132a is connected on the base 12, and wherein left synchronising (connecting) rod 133a is provided with the left-hand thread hole 1330a perpendicular to its axis.The upper end of bottom right connecting rod 132b is hinged by the lower end of right synchronising (connecting) rod 133b and corresponding upper right connecting rod 131b respectively, the lower end of bottom right connecting rod 132b is connected on the base 12, wherein right synchronising (connecting) rod 133b is provided with the right-hand thread hole 1330b perpendicular to its axis, and the hand of spiral of right-hand thread hole 1330b and left-hand thread hole 1330a is opposite.The two ends of screw mandrel 134 are connected with right-hand thread hole 1330b with left-hand thread hole 1330a respectively, and at least one end of screw mandrel 134 links to each other with the output shaft of lifting motor 14.Thus, when screw mandrel 134 is driven when rotating by lifting motor 14, left synchronising (connecting) rod 133a and right synchronising (connecting) rod 133b be simultaneously to two side shiftings or relatively move simultaneously, so that X-shaped crane 13 bulk deformations are protruded upward or the effect of retraction downwards to finish.

Shown in Fig. 1 and Fig. 2 a, drawer appliance further comprises drawer tray 15, and drawer tray 15 is fixedly supported on the upper end of two upper left connecting rod 131a and the upper end of two upper right connecting rod 131b, and drawer 11 removably is placed on the drawer tray 15.

In embodiment more of the present utility model, base 12 comprises base plate 121, left plate 122 and right plate 123, wherein the upper surface of base plate 121 lower end that is provided with four connecting holes, 1210, two lower-lefts connecting rod 132a and two bottom right connecting rod 132b is connected to connecting hole 1210 by pivot pin respectively.Thus, by limiting the lower end of two lower-left connecting rod 132a and two bottom right connecting rod 132b, can limit the scope of activities of X-shaped crane 13.

As depicted in figs. 1 and 2, in embodiment more of the present utility model, the reinforcement 124 that is respectively equipped with many above-below directions extensions on left plate 122 and the right plate 123 is to strengthen the intensity of drawer appliance 1.Drawer appliance 1 further comprises two motor cabinet assemblies 16, and motor cabinet assembly 16 is used for support lifting motor 14 and screw mandrel 134.Motor cabinet assembly 16 can be located at respectively between two adjacent reinforcements 124 on left plate 122 and the right plate 123 up or down, and lifting motor 14 is installed on one of them motor cabinet assembly 16 with along with moving up and down, for example lifting motor 14 can be installed on the motor cabinet assembly 16 of left plate 122, perhaps is installed on the motor cabinet assembly 16 of right plate 123.

Particularly, shown in Fig. 2 b, each motor cabinet assembly 16 comprises motor cabinet body 161 and at least two rollers 162, wherein motor cabinet body 161 is suitable for being connected with lifting motor 14, and the left and right sides that at least two rollers 162 are distributed in motor cabinet body 161 symmetrically moves up and down between two adjacent reinforcements 124 with support motor seat body 161.Alternatively, roller 162 is four, promptly in the left and right sides of motor cabinet body 161 two rollers is set respectively, stably to move up and down between two adjacent reinforcements 124.

As shown in Fig. 6 and Fig. 7, in an embodiment of the present utility model, on the motor cabinet assembly 16 that lifting motor 14 is installed, be provided with through hole 163, be provided with rotating shaft (scheming not shown) in the through hole 163 and be connected with lifting motor 14.Thus,, can insert in the through hole 163,, can directly drive lifting motor 14 by rotation screw cutter or small crank with screwdriver or small crank when unexpected outage in the process of rising or falling of drawer 11.

Wherein alternatively, be provided with the slotted hole 125 that extends from top to bottom corresponding to the left plate 122 of lifting motor 14 or in the right plate 123 one of them, as shown in Fig. 6 and Fig. 7, slotted hole 125 is corresponding in the position of through hole 163 on fore-and-aft direction of position on the fore-and-aft direction and motor cabinet assembly 16.By slotted hole 125 is set, make in the process that motor cabinet assembly 16 moves up and down, be any position of drawer 11 liftings, through hole 163 can expose from slotted hole 125, no matter at any time accident power-off can directly insert by screwdriver or small crank and manually directly drive lifting motors 14 rotations in the through hole 163 thus.

Below with reference to the lifting process of Fig. 3-Fig. 5 description according to drawer in the drawer appliance 1 of the utility model embodiment.

At first, lifting motor 14 rotates, drive screw mandrel 134 and rotate, because the hand of spiral of right-hand thread hole 1330b that connects with the two ends of screw mandrel 134 and left-hand thread hole 1330a is opposite, so screw mandrel 134 drives left synchronising (connecting) rod 133a and right synchronising (connecting) rod 133b motion round about respectively.

When needs drawer 11 rose, left synchronising (connecting) rod 133a and right synchronising (connecting) rod 133b were driven two lateral movements to the left and right respectively by lifting motor 14, drive X-shaped crane 13 bulk deformations, thereby drawer tray 15 and drawer 11 are moved upward.At this moment, because the bottom of X-shaped crane 13 is fixed, the lower end that is lower-left connecting rod 132a and two bottom right connecting rod 132b is fixed, motor cabinet assembly 16, lifting motor 14 and screw mandrel 134 rise simultaneously, and lifting height is drawer tray 15 and drawer 11 lifting heights half, and wherein the effect of motor cabinet assembly 16 is support lifting motor 14 and screw mandrel 134 and reduces friction to reduce resistance when rising.

Since screw mandrel 134 respectively be to be threaded between left synchronising (connecting) rod 133a and the right synchronising (connecting) rod 133b, being connected between screw mandrel 134 and the X-shaped crane 13 has latching characteristics thus, and otherwise screw mandrel 134 rotates the then akinesia of lifting that can drive X-shaped crane 13, therefore, after drawer 11 rose to the precalculated position, lifting motor 14 quit work, and power disconnects, this moment drawer lock, the holding position.

Similarly, if need drawer 11 to descend, left side synchronising (connecting) rod 133a is driven relative respectively inwardly motion with right synchronising (connecting) rod 133b by lifting motor 14, drive X-shaped crane 13 bulk deformations, thereby drawer tray 15 and drawer 11 are moved downward, and after drawer 11 drops to the precalculated position, lifting motor 14 quits work, power disconnects, this moment drawer lock, the holding position.

In addition, because being connected between screw mandrel 134 and the X-shaped crane 13 has latching characteristics, outage meets accident in the process of drawer 11 liftings, it is motionless that the position of drawer 11 will keep, this moment is if need continue drawer 11 to rise or descend, then can pass through the through hole 163 and the slotted hole 125 of the respective side of installation lifting motor 14, the manual electric rotating machine of tool using is to finish the lifting of drawer 11.

Below with reference to a kind of refrigerator of Fig. 8-Figure 21 description according to the utility model embodiment.

Refrigerator according to the utility model embodiment, comprise refrigerating chamber and refrigerating chamber, wherein refrigerating chamber comprises: freezer box 100, drawer door 300, drawer appliance 1 and Control Component, wherein drawer appliance is above-mentioned according to the drawer appliance of describing among the utility model first aspect embodiment 1.As Figure 15 and shown in Figure 16, be formed with air channel 200 in the freezer box 100, particularly, air channel 200 is fixed on the casing being used to distributing flowing of cold wind, and is provided with air outlet 210 in the front side in air channel.The gap that has preset distance between the left and right sides of air channel 200 and freezer box 100 respectively.

The front side of freezer box 100 is opened wide to be used to install pull assembly 2, drawer door 300 and drawer appliance 1, and wherein drawer door 300 is connected on the pull assembly 2, and the motion by pull assembly 2 opens and closes freezer box.Drawer appliance 1 removably is located on the pull assembly 2, and drawer door 300 and drawer appliance 1 all can be with pull assembly 2 elastic motions in casing 100.

Wherein, in the gap that has respectively between the front side of the drawer 11 of drawer appliance 1 and the drawer tray 15 and between the bottom of drawer 11 and the drawer tray 15 greater than 15mm, thus, as shown in figure 21, the direction of cold air flow is restrained, make it can't directly flow to moving component in pull assembly 2 and the drawer appliance 1, prevent its frozen.Control Component is used for controlling the lifting of the switch and drawer appliance 1 drawer of drawer door.Thus, consider that the people sets about that in the situation of not bending over certain distance is overhead arranged, make the food in the drawer be raised the position that can touch in one's hands, can be with the whole rising of drawer.

Refrigerator according to the utility model embodiment, by drawer appliance is set, when need picking and placeing food, the people drawer of the refrigerating chamber of food container can be risen to the preset distance place, the people is not bent over or squats down to pick and place food, easy to use, reduced people's motion amplitude.

Describe according to the pull assembly 2 in the refrigerator of the utility model embodiment below with reference to Fig. 8-Figure 19.

As shown in Fig. 8 and Fig. 9, pull assembly 2 comprises the first tooth bar 21a and the second tooth bar 21b, the first slide rail 22a and the second slide rail 22b, the first gear train 23a and the second gear train 23b, synchronizing bar 24 and clutch equipment 3.

Wherein the first tooth bar 21a and the second tooth bar 21b extend along fore-and-aft direction respectively.Among the first slide rail 22a and the second slide rail 22b each include outer rail 221 and with respect to outer rail 221 movably in rail 222, and the first slide rail 22a and the second slide rail 22b extend along fore-and-aft direction respectively.Alternatively, interior rail 122 is located in the outer rail 121 slidably by ball, and promptly the first slide rail 12a and the second slide rail 12b can be respectively ball slide rail.

The first gear train 23a and the second gear train 23b correspondingly are installed in respectively on the interior rail 222 of the first slide rail 22a and the second slide rail 22b, for example on the interior rail 222 of the first slide rail 22a and the second slide rail 22b, be respectively equipped with axis hole, among the first gear train 23a and the second gear train 23b each comprises at least two gears of engagement successively, comprises last gear 231 that is positioned at rearmost end and the front gear that is positioned at last gear 231 front sides at least in two gears at least.Be understandable that, front gear 232 described herein is so long as be positioned at the gear of last gear 231 front sides and get final product, for example when the first gear train 23a or the second gear train 23b comprise at least three gears, front gear 232 can be the gear that is positioned at front side, also can be the gear in the middle of being positioned at.

Wherein last gear 231 and first a tooth bar 21a of its respective side and an engagement among the second tooth bar 21b, so that motion and interior rail 222 the moving synchronously with respect to outer rail 221 of last gear 231 on tooth bar, particularly, the last gear 231 among the first gear train 23a and the first tooth bar 21a mesh and other gears and 231 engagements of last gear and unsettled (promptly not meshing with the first tooth bar 21a), and last gear 231 among the second gear train 23b and second tooth bar 21b engagement, and other gears and 231 engagements of last gear and unsettled (promptly not meshing) with the second tooth bar 21b.

The two ends of synchronizing bar 24 are connected so that the synchronized movement between the first gear train 23a and the second gear train 23b with front gear 232 among the first gear train 23a and the second gear train 23b respectively.That is to say, by synchronizing bar 24, make motion and last gear 231 in two gear train 23bs and the synchronized movement second tooth bar 21b between of last gear 231 between the first tooth bar 21a among the gear train 23a that wins, so that the slide rail of both sides moves forward and backward simultaneously, improve motion along the slippage degree, reduce rocking of causing because the motion of two wood side-guides is inconsistent.To sum up, in the first gear train 23a or the second gear train 23b, have only a gear to be connected respectively, and have a gear to be meshed in addition with the tooth bar of respective side with synchronizing bar 24.

Clutch equipment 3 links to each other with synchronizing bar, moves along the first tooth bar 21a and the second tooth bar 21b synchronously to drive the first gear train 23a and the second gear train 23b.Following mask body is described the structure of clutch equipment 3 with reference to figure 10-Figure 13.

According to the clutch equipment 3 of the utility model embodiment, comprise starter motor 31 and clutch 32, wherein clutch 32 comprises: housing 321, latch 322, sliding shoe 323, rotating shaft 324 and the first electromagnet 325a and the second electromagnet 325b.As shown in figure 10, in housing 321, be limited with cavity, the output 311 of starter motor 31 stretches in the cavity, first end of latch 322 (being the right-hand member among Figure 10, Figure 12 and Figure 13) is fixed on first end wall (being the right-hand member among Figure 10, Figure 12 and Figure 13) of cavity, and first end wall is relative with the output of starter motor 31.

Be provided with magnet 3231 in the sliding shoe 323 and for example be permanent magnet, the edge face structure one-tenth of first end of sliding shoe 323 is suitable with the end face of second end of latch 322, the edge face structure one-tenth of second end of sliding shoe 323 is suitable with the end face of the output 311 of starter motor 31, but associated movement after promptly cooperating.

Rotating shaft 324 and the coaxial setting of the output shaft of starter motor 31, wherein sliding shoe 323 axially being set on the rotating shaft 324 slidably and can rotating synchronously along rotating shaft 324 with rotating shaft 324.Alternatively, sliding shoe 323 can be to be provided with along the circumferential part of rotating shaft 324, also can be for being configured to along the circumferential annular of housing 321.

The first electromagnet 325a and the second electromagnet 325b are located at first end of cavity and second end back that is used to switch on respectively and attract sliding shoe 323 moving axially along rotating shaft 324.

When to the first electromagnet 325a and the second electromagnet 325b respectively by behind the suitable electric current, making the pole orientation of the first electromagnet 325a and the second electromagnet 325b is that like pole is relative on the contrary, the first electromagnet 325a is inhaled mutually with magnet 3231, like this, the second electromagnet 325b and magnet 3231 repel each other, and then first electromagnet 325a and the second electromagnet 325b the interior sliding shoe 323 that magnet 3231 arranged is applied towards the power of the first electromagnet 325a (be among Figure 10 left power), sliding shoe 323 is moved so that its second end face (being the left side among Figure 10) cooperates with the end face of the output 311 of starter motor 31 along the axial direction to the first electromagnet 325a of rotating shaft 324, as shown in the actuating schematic diagram of Figure 12, the power of starter motor 31 can be delivered on the sliding shoe 323 like this, this moment, sliding shoe 323 driven rotary axles 324 rotated synchronously, so with the transmission of power of starter motor 31 to rotating shaft 324.

Similarly, when to the first electromagnet 325a and the second electromagnet 325b respectively by behind the suitable electric current, making the pole orientation of the first electromagnet 325a and the second electromagnet 325b is that like pole is relative on the contrary, the second electromagnet 325b is inhaled mutually with magnet 3231, like this, the first electromagnet 325a and magnet 3231 repel each other, and then first electromagnet 325a and the second electromagnet 325b the interior sliding shoe 323 that magnet 3231 arranged is applied towards the power of the second electromagnet 325b (be among Figure 10 to the right power), sliding shoe 323 is moved so that its first end face (being the right side among Figure 10) cooperates with the end face of second end (being the left end of the latch among Figure 10) of latch 322 along the axial direction to the second electromagnet 325b of rotating shaft 324, as shown in the braking schematic diagram of Figure 13, like this because the end face of first end of sliding shoe 323 can be suitable with the end face of second end of latch 322, can produce bigger frictional force between sliding shoe 323 after so fit and the latch 322 so that rotating shaft 324 lockings, and prevent that rotating shaft 324 from being driven by external force.Thus, after external force is in excess of the quota, because be the principle of friction fit, can not cause destructions such as fracture to this device, only have the fret wear of binding face, can not influence follow-up operate as normal, promptly system has tolerance preferably for overload condition.

In a word, clutch equipment according to the utility model embodiment, by having the clutch of latch functions, can with the transmission of power of starter motor to other equipment of clutch device external so that external equipment rotate, the motion of perhaps latched position and rotating shaft 324 can not be rotated, and then locking external equipment.In addition, under overload condition, has good tolerance according to the clutch equipment of the utility model embodiment.

In an embodiment of the present utility model, rotating shaft 324 comprises glissile segment 3241 and gear segment 3242, as shown in Figure 10, Figure 12 and Figure 13, gear segment 3242 links to each other with first end of glissile segment 3241, particularly, as shown in Figure 10, gear segment 3242 is positioned at the left side of glissile segment 3241.Gear segment 3242 stretches out housing 321 outsides and is connected with outer gear being suitable for.Glissile segment 3241 is connected with sliding shoe 323 splines, as shown in figure 11, thus, can realize that sliding shoe 323 can axially move around and the rotation synchronously with the rotation of glissile segment 3241 along it, passes on the rotating shaft 324 with the power with starter motor 31 on glissile segment 3241.

Alternatively, the end face of the output 311 of starter motor 31 forms the face gear structure, thus correspondingly, second end face of sliding shoe 323 (being the left side among Figure 10) also forms the face gear structure to cooperate with the end face of the output 311 of starter motor 31 and rotation jointly stably.

In embodiment more of the present utility model, latch 322 can be configured to can guarantee like this that along the circumferential annular of housing 321 sliding shoe 323 all can carry out locking when rotating to any circumferential position along with rotating shaft 324.The end face of second end of latch 322 forms the conical surface that the surface has lines, and promptly this conical surface has coarse surface, and the example conical surface as shown in Figure 10 tilts from left to right from the top down.By above setting, can make the frictional force between sliding shoe 323 and the latch 322 enough lock rotating shaft 324 greatly.

Alternatively, the first electromagnet 325a and the second electromagnet 325b circumferentially are provided with along housing 321 respectively.Thus, the first electromagnet 325a and the second electromagnet 325b can be the magnet of one annular.Perhaps, each among the first electromagnet 325a and the second electromagnet 325b includes a plurality of sub-magnet, and separate the turning up the soil of a plurality of sub-magnet circumferentially is provided with along housing 321.

In embodiment more of the present utility model, starter motor 31 is a stepper motor, stepper motor can controlled reverse rotation so that the torque of different directions to be provided.Certainly the utility model is not limited to this, starter motor 31 can also for other types can reverse rotation motor, for example have the common electric machine of decelerator.

Thus, as shown in Figure 8, when starter motor 31 starts, and to the first electromagnet 325a and the second electromagnet 325b respectively by suitable electric current, sliding shoe 323 is cooperated with the end face of the output 311 of starter motor 31, with with the transmission of power of starter motor 31 to rotating shaft 324 and then be delivered on the synchronizing bar 24, synchronizing bar 24 drives front gear 232 rotations of the first gear train 23a and the second gear train 23b thus, front gear 232 drives last gear 231 and travels forward on the tooth bar of respective side, when last gear 231 arrive its corresponding sides tooth bar foremost the time, reach its range according to the pull assembly of the utility model embodiment.At this moment, pass through suitable electric current respectively to the first electromagnet 325a and the second electromagnet 325b, the end face of second end of the end face of first end of sliding shoe 323 and latch 322 is suitable with rotating shaft 324 lockings, and then locking synchronizing bar 24, thereby the motion of the first gear train 23a and the second gear train 23b stops, and pull assembly 2 is in its range place latched position thus.Otherwise correspondingly, when starter motor 31 opposite spins on synchronizing bar 24, to apply power in the other direction, make the pull assembly retract to its minimum stroke and locking.

Thus, with respect to traditional be the pull mode of same synchromesh gear with tooth bar meshed gears and the gear that is connected with synchronizing bar, stroke according to the pull assembly of the utility model embodiment has extended, and the lengthening distance is made as D, suppose that two centre-to-centre spacing after the gears engaged are d, each number of gears that comprises among the first gear train 23a and the second gear train 23b is n, then the * d of the distance D of the stroke of pull assembly lengthening=(n-1).Pull assembly according to the utility model embodiment, the synchromesh gear group that comprises at least two gears by employing, and with tooth bar meshed gears and the gear that is connected with synchronizing bar is not same, movement travel can effectively extend, solved much the defective of the various inconveniences that cause inadequately owing to movement travel, can avoid the drawer can not or to be inconvenient to take out when for example being used in the refrigerator pull drawer according to the pull assembly of the utility model embodiment.

In an embodiment of the present utility model, the pull assembly further comprises driving gear set 4, and synchronizing bar 24 links to each other with clutch equipment 1 by driving gear set 4 and is passed to synchronizing bar 24 with the moment of torsion with starter motor 31.In an example of the present utility model, as shown in Figure 8, driving gear set 4 comprises first travelling gear 41 and second travelling gear 42, wherein first travelling gear 41 is located at stretching out on housing 321 gear segment 3242 outward of clutch equipment 1, and second travelling gear 42 and first travelling gear 41 mesh and be located on the synchronizing bar 24.Alternatively, the number of teeth of second travelling gear 42 is greater than the number of teeth of first travelling gear 41, to reduce transmitting the torque of coming from starter motor 31.Certainly the utility model is not limited to this, driving gear set 4 can also comprise at least three meshed gears successively, what wherein first gear in three gears was connected to rotating shaft 324 stretches out the outer gear segment of housing 321, and last gear in three gears is connected to synchronizing bar and transmits the torque of coming on the slave motor 31 to change step by step.

Refrigerator according to the utility model embodiment, because being connected between the screw mandrel 134 in the drawer appliance 1 and the X-shaped crane 13 has latching characteristics, outage meets accident in the process of drawer 11 liftings, it is motionless that the position of drawer 11 will keep, this moment is if drawer 11 has raise, drawer 11 upper surfaces have arrived the upper strata drawer door, to cause the drawer door 300 corresponding to close with this drawer 11, have a strong impact on use, then can pass through the through hole 163 and the slotted hole 125 of the respective side of installation lifting motor 14, the manual rotation and lifting motor 11 of tool using makes drawer 11 drop to the normal position.

In the narration of front, after drawer door is opened, fit between the end face of the end face of second end of sliding shoe 323 and the output 311 of starter motor 31, the range of locking pull assembly 2, thereby locked the position of drawer door 300, prevented that the drawer 11 back accidents that rise from pushing and cause this drawer 11 and upper strata drawer drawer door to be interfered.If the outage phenomenon takes place, after falling drawer by hand, between the end face of the end face of second end of sliding shoe 323 and the output 311 of starter motor 31 applying because there has not been the electromagnetic force constraint, so frictional force can reduce greatly, can easily drawer door 300 be back into the closed position.

In embodiment more of the present utility model, as Fig. 8, Fig. 9, Figure 18 and shown in Figure 19, refrigerator further comprises the first drawer frame 5a and the second drawer frame 5b and the first slide track seat 6a and the second slide track seat 6b.

As Fig. 8 and shown in Figure 9, the front end of the first drawer frame 5a and the second drawer frame 5b is connected to drawer door 300 respectively, to place drawer 400 between the first drawer frame 5a and the second drawer frame 5b.Alternatively, the front end left and right symmetrically of the first drawer frame 5a and the second drawer frame 5b links to each other with drawer door 300.As Figure 18 and shown in Figure 19, the first tooth bar 21a of pull assembly and the second tooth bar 21b are installed in respectively on the left and right sides sidewall in the casing 100, and the first drawer frame 5a and the second drawer frame 5b are separately fixed on the outer rail 221 of the first slide rail 22a and the second slide rail 22b and slide with respect to interior rail 222 with the outer rail 221 with the first slide rail 22a and the second slide rail 22b.

Further, refrigerator also comprises the first slide track seat 6a and the second slide track seat 6b, the first slide track seat 6a and the second slide track seat 6b are located at respectively on the left and right sides sidewall in the casing 100, the outer rail 221 of the first slide rail 22a and the second slide rail 22b is separately fixed in the first slide track seat 6a and the second slide track seat 6b, and the first tooth bar 21a and the second tooth bar 21b are installed in respectively in the first slide track seat 6a and the second slide track seat 6b, the first slide track seat 6a and the second slide track seat 6b are supporting outer rail 221 and the first tooth bar 21a and the second tooth bar 21b of the first slide rail 22a and the second slide rail 22b respectively thus, and are supporting the motion of interior rail 222 of the second slide rail 22b of the interior rail 222 of the first slide rail 22a that the first gear train 23a is installed and the second gear train 23b respectively.

In other embodiment of the present utility model, further comprise starter motor support 7, as shown in Figure 9, starter motor support 7 is located between the first drawer frame 5a and the second drawer frame 5b so that starter motor 31 to be installed.

As shown in figure 20, Control Component comprises first button 410, second button 420 and the control module.First button 410 is located on the chamber door of refrigerating chamber to open drawer door 300 with control and to rise drawer 11, the second buttons 420 and is located on the chamber door of refrigerating chamber with control closing drawers door 300 and falls drawer 11.Control module is controlled first button 410 and second button 420.

Refrigerator according to the utility model embodiment, utilize gap between air channel 200 and casing 100 sidewalls to be used for installing the first slide rail 22a and the second slide rail 22b of lengthening, utilization comprises that the gear train of at least two gears cooperates, the position of the synchronizing bar 24 relative first slide rail 12a and the second slide rail 12b is moved on to the slide rail stage casing by the slide rail end, make synchronizing bar 24 can not cause interference to the structure in air channel 200, and then solved a lot because the slide rail stroke is not enough, the defective that causes the drawer of refrigerating chamber can not or be inconvenient to take out.In addition, when drawer door open put in place after, latch functions is opened, locking drawer door current location.After drawer door is opened, utilize the X-shaped crane 13 of drawer 11 bottoms, drive 13 distortion of X-shaped crane, rising drawer 11 by lifting motor 14.Drawer door is opened and the lifting full automation, client only need click first button 410 and second button 420, needn't bend over or squat down fully, can pick and place the food in the drawer, in drawer, also can open easily under the situation of placement weight like this, increase reliability and security when using by stretching out of pull assembly.And the outage that meets accident in the refrigerator use also has the mechanical backup interface according to the refrigerator of the utility model embodiment, can manual reversion to original state, do not influence manual open and close drawer door, do not influence picking and placeing of the interior food of drawer.

In the description of this specification, concrete feature, structure, material or characteristics that the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example description are contained at least one embodiment of the present utility model or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination in any one or more embodiment or example.

Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment under the situation that does not break away from principle of the present utility model and aim, scope of the present utility model is limited by claim and equivalent thereof.

Claims (25)

1. a drawer appliance is characterized in that, comprising:

Drawer;

Base, described base are located at the below and the described base upper end of described drawer and open wide; And

Can stretch up and down and the orientable X-shaped crane in flexible back, described X-shaped crane is located in the described base and by lifting motor control and stretches, and described drawer is supported on the described X-shaped crane to be held up or to fall.

2. drawer appliance according to claim 1 is characterized in that, described X-shaped crane comprises:

Parallel to each other and isolated two upper left connecting rods along fore-and-aft direction;

Parallel to each other and isolated two lower-left connecting rods along fore-and-aft direction, the upper end of described lower-left connecting rod is hinged by the lower end of left synchronising (connecting) rod and corresponding upper left connecting rod respectively, and the lower end of described lower-left connecting rod is connected on the described base, and wherein said left synchronising (connecting) rod is provided with the left-hand thread hole perpendicular to its axis;

Parallel to each other and isolated two upper right connecting rods along fore-and-aft direction;

Parallel to each other and isolated two bottom right connecting rods along fore-and-aft direction, the upper end of described bottom right connecting rod is hinged by the lower end of right synchronising (connecting) rod and corresponding upper right connecting rod respectively, the lower end of described bottom right connecting rod is connected on the described base, wherein said right synchronising (connecting) rod is provided with the right-hand thread hole perpendicular to its axis, and the hand of spiral in described right-hand thread hole and described left-hand thread hole is opposite; With

Screw mandrel, the two ends of described screw mandrel are connected with the right-hand thread hole with described left-hand thread hole respectively, and at least one end of described screw mandrel links to each other with the output shaft of lifting motor.

3. drawer appliance according to claim 1, it is characterized in that, further comprise drawer tray, described drawer tray is fixedly supported on the upper end of described two upper left connecting rods and the upper end of described two upper right connecting rods, and described drawer removably is placed on the described drawer tray.

4. drawer appliance according to claim 1, it is characterized in that, described base comprises base plate, left plate and right plate, and the upper surface of wherein said base plate is provided with four connecting holes, and the lower end of described two lower-left connecting rods and two bottom right connecting rods is connected to described connecting hole by pivot pin respectively.

5. drawer appliance according to claim 4 is characterized in that, is respectively equipped with the reinforcement that many above-below directions extend on described left plate and the right plate,

Described drawer appliance further comprises two motor cabinet assemblies, described motor cabinet assembly can be located at respectively between two adjacent reinforcements on described left plate and the right plate up or down, and described lifting motor is installed on one of them described motor cabinet assembly with along with moving up and down.

6. drawer appliance according to claim 5 is characterized in that, each described motor cabinet assembly comprises:

Motor cabinet body, described motor cabinet body are suitable for being connected with described lifting motor;

The left and right sides that at least two rollers, described at least two rollers are distributed in described motor cabinet body symmetrically moves up and down between described two adjacent reinforcements to support described motor cabinet body.

7. drawer appliance according to claim 6 is characterized in that, described roller is four.

8. drawer appliance according to claim 6 is characterized in that, the described motor cabinet assembly that described lifting motor is installed is provided with through hole, is provided with rotating shaft in the described through hole and is connected with described lifting motor.

9. drawer appliance according to claim 8, it is characterized in that, be provided with the slotted hole that extends from top to bottom corresponding to the described left plate of lifting motor or in the right plate one of them, described slotted hole is corresponding in the position of through hole on fore-and-aft direction of position on the fore-and-aft direction and described motor cabinet assembly.

10. a refrigerator comprises refrigerating chamber and refrigerating chamber, it is characterized in that, described refrigerating chamber comprises:

Freezer box is formed with the gap that has preset distance between the left and right sides of air channel and described air channel and described freezer box respectively in the described freezer box, described freezer box front side is opened wide;

Drawer door, described drawer door opens and closes described freezer box by the motion of pull assembly;

According to each described drawer appliance among the claim 1-9, described drawer appliance is installed on the described pull assembly and with described pull assembly and moves; And

Control Component, described Control Component are used for controlling the lifting of the switch and the described drawer appliance drawer of described drawer door.

11. refrigerator according to claim 11 is characterized in that, has the gap greater than 15mm between the front side of described drawer and the described drawer tray and between the bottom of described drawer and the described drawer tray respectively.

12. refrigerator according to claim 11 is characterized in that, described pull assembly comprises:

First and second tooth bars, described first and second tooth bars extend along fore-and-aft direction respectively, and described first and second tooth bars are installed in respectively on the interior left and right sides sidewall of described freezer box;

First and second slide rails that extend along fore-and-aft direction respectively, each in described first and second slide rails include outer rail and with respect to described outer rail movably in rail;

First and second gear trains, described first and second gear trains correspondingly are installed in respectively on the interior rail of described first and second slide rails, in described first and second gear trains each comprises that at least two gears mesh successively, and an engagement in the last gear of the rearmost end in described at least two gears and first and second tooth bars of respective side so that described last gear on described tooth bar motion and described in rail moving synchronously with respect to described outer rail;

Synchronizing bar, the two ends of described synchronizing bar are connected with front gear in first and second gear trains respectively so that the synchronized movement between described first and second gear trains, and wherein front gear is positioned at the described first gear front side; With

Clutch equipment, described clutch equipment link to each other with described synchronizing bar and move along described first and second tooth bars synchronously to drive described first and second gear trains.

13. refrigerator according to claim 12 is characterized in that, described clutch equipment comprises:

Starter motor; And

Clutch, described clutch comprises:

Housing is limited with cavity in the described housing, and the output of described starter motor stretches in the described cavity;

Latch, first end of described latch are fixed on first end wall of described cavity, and described first end wall is relative with the output of described starter motor;

Sliding shoe is provided with magnet in the described sliding shoe, and the edge face structure one-tenth of first end of described sliding shoe is suitable with the end face of second end of described latch, and the edge face structure one-tenth of second end of described sliding shoe is suitable with the end face of the output of described starter motor;

With the rotating shaft of the coaxial setting of output shaft of starter motor, wherein said sliding shoe rotates synchronously along axially being set in slidably on the described rotating shaft and with described rotating shaft of described rotating shaft; And

First and second electromagnet, described first and second electromagnet are located at first end of described cavity and second end back that is used to switch on respectively and attract described sliding shoe moving axially along described rotating shaft.

14. refrigerator according to claim 13 is characterized in that, described rotating shaft comprises:

Glissile segment, described glissile segment is connected with described sliding shoe spline; With

Gear segment, described gear segment links to each other with first end of described glissile segment and stretches out hull outside.

15. refrigerator according to claim 13 is characterized in that, the end face of the output of described starter motor forms the face gear structure.

16. refrigerator according to claim 13 is characterized in that, described latch is configured to along the circumferential annular of housing, and the end face of second end of described latch forms the conical surface that the surface has lines.

17. refrigerator according to claim 16 is characterized in that, first and second electromagnet circumferentially are provided with along housing respectively.

18. refrigerator according to claim 17 is characterized in that, each in first and second electromagnet includes a plurality of sub-magnet, and separate the turning up the soil of described a plurality of sub-magnet circumferentially is provided with along housing.

19. refrigerator according to claim 13 is characterized in that, described starter motor is stepper motor or the common electric machine that has decelerator.

20. refrigerator according to claim 13 is characterized in that, further comprises driving gear set, described synchronizing bar links to each other with described clutch equipment to transmit moment of torsion by described driving gear set.

21. refrigerator according to claim 20 is characterized in that, described driving gear set comprises:

First travelling gear, described first travelling gear are located on the outer gear segment of the described housing of stretching out of described clutch equipment; With

Second travelling gear, described second travelling gear and described first travelling gear mesh and are located on the described synchronizing bar.

22. refrigerator according to claim 21 is characterized in that, the number of teeth of described second travelling gear is greater than the number of teeth of first travelling gear.

23. refrigerator according to claim 12 is characterized in that, further comprises:

First and second drawer frames, the front end of described first and second drawer frames is connected to described drawer door respectively placing described drawer appliance between described first and second drawer frames, and described first and second drawer frames are separately fixed on the interior rail of described first and second slide rails and slide with respect to outer rail with the interior rail with described first and second slide rails; With

First and second slide track seats, described first and second slide track seats are located on the left and right sides sidewall in the described casing respectively and described first and second tooth bars are installed in respectively in described first and second slide track seats, and the rear end of described first and second slide track seats extend into respectively in the gap between described air channel and the freezer box.

24. refrigerator according to claim 23 is characterized in that, further comprises the starter motor support, described starter motor props up and is erected at described first and second drawer frames so that described starter motor to be installed.

25. refrigerator according to claim 11 is characterized in that, Control Component comprises:

First button, described first button are located on the chamber door of described refrigerating chamber and open described drawer door and rise described drawer with control;

Second button, described second button are located on the chamber door of described refrigerating chamber and close described drawer door and fall described drawer with control; With

Control module, described control module are controlled described first button and second button.

Images