CN107144074B - Refrigerator - Google Patents

Abstract

The present invention provides a kind of refrigerator, including the open refrigeration compartment in front side, the drawer and driving device of refrigeration chamber can be set to front and back push-and-pull.Driving device includes translating element, is configured to move forward under driving force effect, to push drawer to stretch out refrigeration compartment, is additionally provided with front and back thereon and is staggered and towards opposite preceding stopper section and rear stopper section；Limit electric machine is directly or indirectly fixed on the inner wall of refrigeration compartment, the first claw and the second claw cooperated respectively with preceding stopper section and rear stopper section is connected in shaft, it is configured to when the shaft of limit electric machine turns to first angle, the first claw is set to turn to the front of preceding stopper section, the front of stopper section after being detached from the second claw, to limit the Forward extreme position of drawer by preceding stopper section, and when the shaft of limit electric machine turns to second angle, the second claw is set to turn to the front of rear stopper section, the first claw is set to be detached from the front of preceding stopper section, to limit the Forward extreme position of drawer by rear stopper section.

Description

refrigerator

technical field

The invention relates to a refrigerating and freezing device, in particular to a refrigerator.

Background technique

With the advancement of technology, home appliances such as refrigerators are gradually developing towards intelligence, and refrigerators that can automatically open the door have appeared, which is convenient for users.

But there is no refrigerator that can automatically open the drawer or drawer door in the prior art, and the opening of the refrigerator drawer or drawer door is still not intelligent enough and humanized.

Contents of the invention

An object of the present invention is to overcome the defects of the prior art and provide a refrigerator whose drawer can be opened automatically to improve the intelligence level of the refrigerator.

A further object of the present invention is to divide the forward stroke of the drawer into two gears, a long stroke and a short stroke, which is convenient for users to choose and reduces the leakage of cooling capacity.

In particular, the present invention provides a refrigerator comprising:

A refrigerated compartment with an open front;

a drawer arranged in the refrigerated compartment to be slid back and forth; and

drive unit, which includes:

The translation piece is configured to move forward under the action of the driving force to push the drawer out of the refrigeration compartment, and the translation piece is also provided with front and rear stoppers that are staggered forward and backward and facing oppositely;

The limit motor is directly or indirectly fixed on the inner wall of the refrigerating compartment, and its rotating shaft is connected with a first claw and a second claw respectively matched with the front stopper and the rear stopper, and is configured to: When the rotating shaft of the bit motor rotates to the first angle, the first claw is rotated to the front of the front stopper, and the second claw is separated from the front of the rear stopper, so that the front stopper of the drawer is limited by the front stopper. Move to the limit position, and when the rotation shaft of the limit motor rotates to the second angle, the second claw is rotated to the front of the rear stop, so that the first claw is separated from the front of the front stop, so that the The stop portion limits the forward limit position of the drawer.

Optionally, the upper and lower surfaces of the translation member are respectively provided with an upper groove and a lower groove, and the rear wall of the upper groove is located in front of the rear wall of the lower groove, so that the rear wall of the upper groove constitutes a front stop part, so that the rear wall of the lower groove constitutes the rear stopper; and the limit motor is located on the lateral side of the translation piece, and the first claw and the second claw are respectively facing the upper groove and the lower groove from the rotating shaft of the limit motor. Groove extension.

Optionally, the driving device further includes an installation box, which is fixedly installed on the inner wall of the refrigeration compartment; the limit motor is fixedly installed in the installation box; and the translation member is slidably installed in the installation box.

Optionally, the lateral sides of the translation piece are respectively provided with slide grooves extending forward and backward; and the bottom wall of the installation box extends upwards with a plurality of support frames, and the plurality of support frames are distributed on the lateral sides of the translation piece, and each support frame The top end is bent toward the chute and extends into the chute to allow the translation piece to slide back and forth relative to the plurality of supporting frames.

Optionally, the translation member is provided with a rack extending forward and backward; and the driving device further includes a gear meshed with the rack and a driving motor for driving the gear, and the driving motor is fixedly installed in the installation box.

Optionally, the drive motor is a controllable forward and reverse stepping motor to drive the translation piece to translate back and forth, thereby allowing the translation piece to drive the drawer to extend or retract into the refrigerated compartment.

Optionally, the drive motor is a unidirectional stepping motor, so as to only drive the translation piece forward; the translation piece is configured such that its front end is detachably connected with the drawer, so as to push the drawer forward; and the translation piece is connected with the installation box A tension spring is connected between them, which is configured to exert a backward elastic restoring force on the translation piece, so that after the translation piece pushes the drawer to the forward limit position, the translation piece moves back under the action of the elastic restoration force , to keep the drawer at the forward limit position.

Optionally, the installation box is a closed box, the front wall of which is provided with a relief hole allowing the translation piece to protrude.

Optionally, the driving device is arranged below the drawer; the installation box is fixedly installed on the bottom wall of the refrigeration compartment; and the front end of the translation piece is connected to the rear surface of the front end plate of the drawer.

Optionally, the front opening of the refrigerated compartment is opened or closed by the front panel of the drawer.

The refrigerator of the present invention utilizes a drive device to drive the drawer to move forward so that it can be opened automatically, which improves the automation level of the refrigerator. The drive device utilizes the structure of the limit motor, the first claw, the second claw, the front stopper and the rear stopper, so that the drawer has two forward limit positions, so that its forward stroke is divided into long stroke and long stroke. There are two gears in the short stroke, which is convenient for users to choose the forward stroke of the drawer according to the actual needs of picking and placing items, that is, to choose the opening distance of the drawer, which greatly facilitates the user.

Furthermore, in the refrigerator of the present invention, the driving device uses a rack and pinion mechanism to push the translation of the translation member, which has a simple structure and is easy to implement.

Furthermore, the refrigerator of the present invention can enable the drive motor to rotate forward and backward, so as to drive the drawer to translate back and forth, and realize full automation of opening and closing of the drawer. Or, the present invention can make the driving motor only be able to drive the translation piece and the drawer to move forward, and use the tension spring to realize the back movement of the translation piece. It is fixed on the drawer, which is convenient for the user to pull the drawer out of the refrigeration compartment for trimming or cleaning.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention;

Fig. 2 is an exploded schematic view of the refrigerator shown in Fig. 1;

Fig. 3 is a schematic structural view of the driving device in Fig. 2;

Fig. 4 is an exploded schematic diagram of the driving device shown in Fig. 3;

Fig. 5 is a schematic diagram of a cutaway state of the driving device shown in Fig. 3 when the translation member is at the rearmost position;

Fig. 6 is a schematic diagram of the state in which the translation member of the driving device shown in Fig. 5 moves forward to make the first claw abut against the front side of the front stopper;

FIG. 7 is a schematic diagram of a state in which the translation member of the driving device shown in FIG. 5 moves forward to make the second claw abut against the front side of the rear stopper.

Detailed ways

A refrigerator according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 7 . Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention; Fig. 2 is an exploded schematic diagram of the refrigerator shown in Fig. 1 .

As shown in FIGS. 1 and 2 , the refrigerator according to the embodiment of the present invention may generally include a box body 10 defining a refrigerating compartment with an open front side. The quantity of refrigerating compartment can be one or more, as shown in Figure 1, can make the rear side of door body 30,40 be refrigerating chamber according to the difference of refrigerating temperature range, the rear side of door body 50 is a temperature-changing room, the door The rear side of the body 20 is a freezing compartment. A drawer 20 may be provided in some refrigerated compartments, especially a freezer compartment, and the drawer 20 may be set in the refrigerated compartment 11 in such a way that it can be pushed and pulled back and forth. For the refrigerated compartment 11 provided with the drawer 20, as shown in Figures 1 and 2, the front opening of the refrigerated compartment 11 is opened or closed by the front end plate 22 of the drawer 20, that is, the structure of the drawer door is formed. Alternatively, a door body can also be separately provided on the front side of the refrigerating compartment 11 .

Fig. 3 is a schematic structural view of the driving device 80 in Fig. 2; Fig. 4 is an exploded schematic diagram of the driving device 80 shown in Fig. 3; Fig. 5 is a cutaway state of the driving device 80 shown in Fig. 3 when the translation member 82 is at the rearmost end position Schematic diagram; FIG. 6 is a schematic diagram of the state in which the translation member 82 of the driving device 80 shown in FIG. 5 moves forward to make the first claw 841 abut against the front side of the front stop portion 851; FIG. A schematic diagram of a state in which the translation member 82 moves forward to make the second claw 842 abut against the front side of the rear stop portion 861 .

As shown in FIGS. 3 to 7 , the refrigerator in the embodiment of the present invention further includes a driving device 80 for driving the drawer 20 to move forward so that the drawer 20 can be opened automatically. The driving device 80 may generally include a translation member 82 , a limit motor 83 , and a first claw 841 and a second claw 842 . The translation member 82 is configured to move forward under the action of a driving force, so as to push the drawer 20 out of the refrigerated compartment 11 for users to access items. Two stoppers are also provided on the translation member 82 , namely, a front stopper 851 and a rear stopper 861 . The front stopper 851 and the rear stopper 861 are staggered forward and backward, that is, the front stopper 851 is located in front of the rear stopper 861 . The limit motor 83 is directly or indirectly fixed on the inner wall of the refrigeration compartment 11 , and its rotating shaft is connected with a first claw 841 and a second claw 842 respectively matching with the front stopper 851 and the rear stopper 861 . The two claws are used to cooperate with the two stoppers to limit the forward limit position of the drawer 20 , or the farthest forward stroke.

Specifically, as shown in FIG. 5 and FIG. 6 , when the rotating shaft of the limit motor 83 rotates, it drives the first claw 841 and the second claw 842 to rotate and change positions. The rotating shaft of the limiting motor 83 has two stop points of the first angle and the second angle. When the rotating shaft of the limiting motor 83 rotates to the first angle, the first claw 841 rotates to the front of the front stopper 851, and the second The two claws 842 disengage from the front of the rear stopper 861 . At this time, when the translation member 82 is forced to move forward for a certain distance, the first claw 841 will be stuck on the front side of the front stopper 851 , making it unable to move forward. That is to say, at this time, the forward limit position of the drawer 20 is limited by the front stop portion 851 , and the forward stroke of the drawer 20 is a short stroke.

As shown in Figure 7, when the rotation shaft of the limit motor 83 rotates to the second angle, the second claw 842 rotates to the front of the rear stop 861, and the first claw 841 breaks away from the front of the front stop 851. After the translation member 82 moves forward for a certain distance under force, the second claw 842 will be stuck on the front side of the rear stopper 861 so that it cannot continue to move forward. That is to say, at this time, the forward limit position of the drawer 20 is limited by the rear stop portion 861 , and the forward stroke of the drawer 20 is a long stroke.

Of course, the limit motor 83 should be able to be controlled forward and reverse, so that it can repeatedly switch between the first angle and the second angle. The limit motor 83 is preferably a stepping motor with controllable rotation angle.

In the embodiment of the present invention, the drawer 20 can have two forward limit positions, or two forward strokes, by the first claw 841 , the second claw 842 , the front stopper 851 and the rear stopper 861 . If the user only needs to pick and place small items, he can control the limit motor 83 to make the rotating shaft rotate to the first angle, so that the drawer 20 moves forward for a short stroke and then stops. In this way, the loss of cooling capacity can also be reduced under the premise of satisfying the user's need to pick and place items. But, if the user needs to take large items, the limit motor 83 can be controlled to make its rotating shaft rotate to the second angle, so that the drawer 20 is moved forward for a long stroke and then stops, which is convenient for the user to take large items. During specific implementation, the aforementioned short stroke can be made to half open the drawer 20 , and the long stroke can be made to fully open the drawer 20 . Compared with the scheme that can only fully open the drawers 20 in one step, the embodiment of the present invention enriches the opening options of the user, and also minimizes the loss of cooling capacity.

In some embodiments, as shown in FIGS. 3 and 4 , the upper and lower surfaces of the translation member 82 are respectively provided with an upper groove 85 and a lower groove 86 , and the rear wall of the upper groove 85 is compared with the rear wall of the lower groove 86 . The position is forward, so that the rear wall of the upper groove 85 constitutes the aforementioned front stop portion 851 , and the rear wall of the lower groove 86 constitutes the aforementioned rear stop portion 861 . The limit motor 83 is located on the lateral side of the translation member 82 (the left side is shown in the figure), and the first claw 841 and the second claw 842 are respectively facing the upper groove 85 and the lower recess from the rotating shaft of the limit motor 83. Slot 86 extends (shown as extending to the right). The rotating shaft of the limit motor 83 extends along the horizontal front-rear direction. In the state shown in FIG. 3 , the rotating shaft of the limit motor 83 is at the first angle, the first claw 841 is located in the upper groove 85 , the second claw 842 is located below the lower groove 86 , and the forward stroke of the drawer 20 for short trips. When it is necessary to switch to a long stroke, the limit motor 83 can be rotated so that the first claw 841 moves up to break away from the upper groove 85, and the second claw 842 moves down to enter the lower groove 86. In some alternative embodiments, the limit motor 83 can also be arranged above or below the translation piece 82, so that the first claw 841 and the second claw 842 are located on both lateral sides of the translation piece 82. Offer left groove and right groove on 82 to replace aforementioned upper groove 85 and lower groove 86.

In some embodiments, as shown in FIGS. 3 and 4 , the driving device 80 further includes an installation box 81 for accommodating various components of the driving device 80 . The installation box 81 is fixedly installed on the inner wall of the refrigeration compartment 11 . The limit motor 83 is fixedly installed in the installation box 81 , and the translation member 82 is installed in the installation box 81 so as to slide back and forth. Specifically, sliding grooves 828 extending forward and backward are respectively defined on both lateral (left and right) sides of the translation member 82 . A plurality of support frames 87 extend upward from the bottom wall of the installation box 81, and the plurality of support frames 87 are distributed on both lateral sides of the translation member 82. The top of each support frame 87 bends toward the chute 828 and extends into the chute 828, To allow the translation member 82 to slide back and forth relative to the plurality of supporting frames 87 . The supporting frame 87 plays a role of supporting the translation piece 82 . The number of support frames 87 may be three, two are located on the right side of the translation piece 82 , and one is located on the left side of the translation piece 82 . The installation box 81 can be a closed box body, and its front wall is provided with a relief hole 812 for allowing the translation piece 82 to protrude.

The driving device 80 can be arranged below the drawer 20 , and the installation box 81 is fixedly installed on the bottom wall of the refrigeration compartment 11 , so that the front end of the translation member 82 is connected to the rear surface of the front end plate 22 of the drawer 20 . Specifically, as shown in FIG. 2 , an accommodating space 112 is opened on the bottom wall of the refrigeration compartment 11 so as to allow the installation box 81 to be placed therein.

In some embodiments, the driving device 80 uses a motor and a rack and pinion mechanism to drive the translation member 82 to translate. As shown in FIGS. 3 to 7 , the translation member 82 is provided with a rack 821 extending forward and backward. The translation piece 82 can be in the shape of a long plate, and the rack 821 can be located on the lower surface of the translation piece 82 . The driving device 80 also includes a gear 89 meshing with the rack 821 and a driving motor 88 for driving the gear 89 , and the driving motor 88 is fixedly installed in the installation box 81 .

When the drawer 20 needs to be opened, the driving motor 88 can be rotated first, and the rack and pinion mechanism drives the translation member 82 to move forward, and the front stop 851 is blocked by the first claw 841 (or the rear stop 861 is blocked by the second claw). 842 blocks), translation piece 82 can't continue to move forward, and the rotor of driving motor 88 stops rotating, triggers its motor control program response, makes it shut down.

In some embodiments, the driving motor 88 can be a controllable forward and reverse stepping motor, so as to drive the translation member 82 to translate back and forth, and then allow the translation member 82 to drive the drawer 20 to extend or retract into the refrigeration compartment 11 . That is to say, in this embodiment, not only the automatic opening of the drawer 20 can be realized, but also the automatic closing of the drawer 20 can be realized.

In some other embodiments, the driving motor 88 can also be a stepper motor with one-way rotation, so as to only drive the translation member 82 to move forward. The translation member 82 is configured such that its front end is detachably connected with the drawer 20 so as to push the drawer 20 forward. That is to say, when the translation member 82 moves forward, the drawer 20 can be pushed forward, but when the translation member 82 moves backward, it cannot drive the drawer 20 to move backward, that is, the user needs to manually close the drawer 20 .

A tension spring (not shown) can also be connected between the translation piece 82 and the installation box 81, and the two ends of the tension spring are connected to the rear end of the translation piece 82 and the rear wall of the installation box 81 for applying force to the translation piece 82. Rearward elastic recovery force, after the translation piece 82 pushes the drawer 20 to the forward limit position, the drive motor 88 stops, and the translation piece 82 moves back under the action of the elastic recovery force, so that the drawer 20 remains in the front position. Move to the limit position. In this embodiment, the tension spring is used to move the translation piece 82 back to its position, which can save the user effort to close the drawer 20 without pushing the translation piece 82 and overcoming the resistance of the rack-and-pinion mechanism and the rotation resistance of the drive motor 88 . In addition, in this embodiment, the translation member 82 can be detachably connected to the drawer 20 instead of being fixed to the drawer 20 , so that it is convenient for the user to pull the drawer 20 out of the refrigeration compartment 11 for trimming or cleaning.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. a kind of refrigerator, including the open refrigeration compartment in front side and the pumping of the refrigeration chamber can be set to front and back push-and-pull Drawer, it is characterised in that further include driving device, described driving device includes:

Translating element is configured to move forward under driving force effect, to push the drawer to stretch out the refrigeration compartment, the translation Front and back is additionally provided on part to be staggered and towards opposite preceding stopper section and rear stopper section；

Limit electric machine is directly or indirectly fixed on the inner wall of the refrigeration compartment, be connected in shaft respectively with it is described before The first claw and the second claw of stopper section and the rear stopper section cooperation, and be configured to:

When the shaft of the limit electric machine turns to first angle, first claw is made to turn to the preceding stopper section just Front makes second claw be detached from the front of the rear stopper section, before limiting the drawer by the preceding stopper section Extreme position is moved, and

When the shaft of the limit electric machine turns to second angle, second claw is made to turn to the rear stopper section just Front makes first claw be detached from the front of the preceding stopper section, before limiting the drawer by the rear stopper section Move extreme position.

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

The upper and lower surface of the translating element offers upper groove and lower groove respectively, and the rear wall of the upper groove is compared to described recessed The rear wall position of slot is forward, so that the rear wall of the upper groove constitutes the preceding stopper section, constitutes the rear wall of the lower groove Stopper section after described；And

The limit electric machine is located at the lateral side of the translating element, and first claw and second claw are respectively from described Extend in the shaft of limit electric machine towards the upper groove and the lower groove.

3. refrigerator according to claim 1, which is characterized in that

The driving device further includes mounting box, is fixedly installed in the inner wall of the refrigeration compartment；

The limit electric machine is fixedly mounted in the mounting box；And

The translating element is mounted in the mounting box in which can slide back and forth.

4. refrigerator according to claim 3, which is characterized in that

The lateral both sides of the translating element offer the sliding slot that front and back extends respectively；And

The bottom wall of the mounting box extends upward multiple support frames, and the multiple support frame is distributed in the transverse direction of the translating element The top of two sides, each support frame as described above bends towards the sliding slot and protrudes into the sliding slot, to allow the translating element opposite The multiple support frame slides back and forth.

5. refrigerator according to claim 3, which is characterized in that

The rack gear that front and back extends is provided in the translating element；And

The driving device further includes the driving motor with the rack gear meshed gears and for driving the gear, described Driving motor is fixedly installed in the mounting box.

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

The driving motor be can the stepper motor of controlled positive and negative rotation allow for institute to drive the translating element anterior-posterior translation It states translating element and drives the extended or retracted refrigeration compartment of drawer.

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

The driving motor is the stepper motor of one-directional rotation, to be only capable of driving the translating element to move forward；

The translating element is configured to keep its front end and the drawer separably attached, to push the drawer to move forward；And

It is connected with extension spring between the translating element and the mounting box, is configured to apply the translating element on bullet backward Property restoring force, after the drawer is pushed to the Forward extreme position by the translating element, to make the translating element in elasticity Return is moved back under the action of restoring force, and the drawer is made to be maintained at the Forward extreme position.

8. refrigerator according to claim 3, which is characterized in that

The mounting box is enclosed box body, and antetheca offers the relief hole for allowing the translating element to stretch out.

9. refrigerator according to claim 3, which is characterized in that

The lower section of the drawer is arranged in the driving device；

The mounting box is fixedly installed in the bottom wall of the refrigeration compartment；And

The front end of the translating element is connected to the rear surface of the front end-plate of the drawer.

10. refrigerator according to claim 1, which is characterized in that

The front openings of the refrigeration compartment are opened by the front end-plate of the drawer or closing.